diff options
Diffstat (limited to 'drivers/hwmon')
264 files changed, 13805 insertions, 7318 deletions
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 83945397b6eb..5fd93aad2d6d 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -40,7 +40,7 @@ comment "Native drivers" config SENSORS_ABITUGURU tristate "Abit uGuru (rev 1 & 2)" - depends on (X86 && DMI) || COMPILE_TEST + depends on (X86 && DMI) || COMPILE_TEST && HAS_IOPORT help If you say yes here you get support for the sensor part of the first and second revision of the Abit uGuru chip. The voltage and frequency @@ -55,7 +55,7 @@ config SENSORS_ABITUGURU config SENSORS_ABITUGURU3 tristate "Abit uGuru (rev 3)" - depends on (X86 && DMI) || COMPILE_TEST + depends on (X86 && DMI) || COMPILE_TEST && HAS_IOPORT help If you say yes here you get support for the sensor part of the third revision of the Abit uGuru chip. Only reading the sensors @@ -105,18 +105,6 @@ config SENSORS_AD7418 This driver can also be built as a module. If so, the module will be called ad7418. -config SENSORS_ADM1021 - tristate "Analog Devices ADM1021 and compatibles" - depends on I2C - depends on SENSORS_LM90=n - help - If you say yes here you get support for Analog Devices ADM1021 - and ADM1023 sensor chips and clones: Maxim MAX1617 and MAX1617A, - Genesys Logic GL523SM, National Semiconductor LM84 and TI THMC10. - - This driver can also be built as a module. If so, the module - will be called adm1021. - config SENSORS_ADM1025 tristate "Analog Devices ADM1025 and compatibles" depends on I2C @@ -174,6 +162,7 @@ config SENSORS_ADM9240 tristate "Analog Devices ADM9240 and compatibles" depends on I2C select HWMON_VID + select REGMAP_I2C help If you say yes here you get support for Analog Devices ADM9240, Dallas DS1780, National Semiconductor LM81 sensor chips. @@ -235,6 +224,7 @@ config SENSORS_ADT7462 config SENSORS_ADT7470 tristate "Analog Devices ADT7470" depends on I2C + select REGMAP_I2C help If you say yes here you get support for the Analog Devices ADT7470 temperature monitoring chips. @@ -334,7 +324,7 @@ config SENSORS_K8TEMP config SENSORS_K10TEMP tristate "AMD Family 10h+ temperature sensor" - depends on X86 && PCI && AMD_NB + depends on X86 && PCI && AMD_NODE help If you say yes here you get support for the temperature sensor(s) inside your CPU. Supported are later revisions of @@ -423,7 +413,7 @@ config SENSORS_ASPEED will be called aspeed_pwm_tacho. config SENSORS_ASPEED_G6 - tristate "ASPEED g6 PWM and Fan tach driver" + tristate "ASPEED G6 PWM and Fan tach driver" depends on ARCH_ASPEED || COMPILE_TEST depends on PWM help @@ -431,7 +421,7 @@ config SENSORS_ASPEED_G6 controllers. This driver can also be built as a module. If so, the module - will be called aspeed_pwm_tacho. + will be called aspeed_g6_pwm_tach. config SENSORS_ATXP1 tristate "Attansic ATXP1 VID controller" @@ -473,6 +463,16 @@ config SENSORS_BT1_PVT_ALARMS the data conversion will be periodically performed and the data will be saved in the internal driver cache. +config SENSORS_CGBC + tristate "Congatec Board Controller Sensors" + depends on MFD_CGBC + help + Enable sensors support for the Congatec Board Controller. It has + temperature, voltage, current and fan sensors. + + This driver can also be built as a module. If so, the module will be + called cgbc-hwmon. + config SENSORS_CHIPCAP2 tristate "Amphenol ChipCap 2 relative humidity and temperature sensor" depends on I2C @@ -506,6 +506,17 @@ config SENSORS_CORSAIR_PSU This driver can also be built as a module. If so, the module will be called corsair-psu. +config SENSORS_CROS_EC + tristate "ChromeOS Embedded Controller sensors" + depends on MFD_CROS_EC_DEV + default MFD_CROS_EC_DEV + help + If you say yes here you get support for ChromeOS Embedded Controller + sensors. + + This driver can also be built as a module. If so, the module + will be called cros_ec_hwmon. + config SENSORS_DRIVETEMP tristate "Hard disk drives with temperature sensors" depends on SCSI && ATA @@ -611,6 +622,7 @@ config SENSORS_SPARX5 config SENSORS_F71805F tristate "Fintek F71805F/FG, F71806F/FG and F71872F/FG" + depends on HAS_IOPORT depends on !PPC help If you say yes here you get support for hardware monitoring @@ -622,6 +634,7 @@ config SENSORS_F71805F config SENSORS_F71882FG tristate "Fintek F71882FG and compatibles" + depends on HAS_IOPORT depends on !PPC help If you say yes here you get support for hardware monitoring @@ -786,6 +799,17 @@ config SENSORS_HS3001 This driver can also be built as a module. If so, the module will be called hs3001. +config SENSORS_HTU31 + tristate "Measurement Specialties HTU31 humidity and temperature sensor" + depends on I2C + select CRC8 + help + If you say yes here you get support for the HTU31 humidity + and temperature sensors. + + This driver can also be built as a module. If so, the module + will be called htu31. + config SENSORS_IBMAEM tristate "IBM Active Energy Manager temperature/power sensors and control" select IPMI_SI @@ -852,8 +876,20 @@ config SENSORS_CORETEMP sensor inside your CPU. Most of the family 6 CPUs are supported. Check Documentation/hwmon/coretemp.rst for details. +config SENSORS_ISL28022 + tristate "Renesas ISL28022" + depends on I2C + select REGMAP_I2C + help + If you say yes here you get support for ISL28022 power monitor. + Check Documentation/hwmon/isl28022.rst for details. + + This driver can also be built as a module. If so, the module + will be called isl28022. + config SENSORS_IT87 tristate "ITE IT87xx and compatibles" + depends on HAS_IOPORT depends on !PPC select HWMON_VID help @@ -914,6 +950,16 @@ config SENSORS_LAN966X This driver can also be built as a module. If so, the module will be called lan966x-hwmon. +config SENSORS_LENOVO_EC + tristate "Sensor reader for Lenovo ThinkStations" + depends on X86 + help + If you say yes here you get support for LENOVO + EC Sensor data on newer ThinkStation systems + + This driver can also be built as a module. If so, the module + will be called lenovo_ec_sensors. + config SENSORS_LINEAGE tristate "Lineage Compact Power Line Power Entry Module" depends on I2C @@ -987,6 +1033,7 @@ config SENSORS_LTC2990 config SENSORS_LTC2991 tristate "Analog Devices LTC2991" depends on I2C + select REGMAP_I2C help If you say yes here you get support for Analog Devices LTC2991 Octal I2C Voltage, Current, and Temperature Monitor. The LTC2991 @@ -1134,6 +1181,7 @@ config SENSORS_MAX1619 config SENSORS_MAX1668 tristate "Maxim MAX1668 and compatibles" depends on I2C + select REGMAP_I2C help If you say yes here you get support for MAX1668, MAX1989 and MAX1805 chips. @@ -1220,6 +1268,7 @@ config SENSORS_MAX6621 config SENSORS_MAX6639 tristate "Maxim MAX6639 sensor chip" depends on I2C + select REGMAP_I2C help If you say yes here you get support for the MAX6639 sensor chips. @@ -1227,18 +1276,6 @@ config SENSORS_MAX6639 This driver can also be built as a module. If so, the module will be called max6639. -config SENSORS_MAX6642 - tristate "Maxim MAX6642 sensor chip" - depends on I2C - depends on SENSORS_LM90=n - help - If you say yes here you get support for MAX6642 sensor chip. - MAX6642 is a SMBus-Compatible Remote/Local Temperature Sensor - with Overtemperature Alarm from Maxim. - - This driver can also be built as a module. If so, the module - will be called max6642. - config SENSORS_MAX6650 tristate "Maxim MAX6650 sensor chip" depends on I2C @@ -1274,6 +1311,7 @@ config SENSORS_MAX31790 config SENSORS_MC34VR500 tristate "NXP MC34VR500 hardware monitoring driver" depends on I2C + select REGMAP_I2C help If you say yes here you get support for the temperature and input voltage sensors of the NXP MC34VR500. @@ -1395,7 +1433,9 @@ config SENSORS_LM73 config SENSORS_LM75 tristate "National Semiconductor LM75 and compatibles" depends on I2C + depends on I3C || !I3C select REGMAP_I2C + select REGMAP_I3C if I3C help If you say yes here you get support for one common type of temperature sensor chip, with models including: @@ -1500,7 +1540,7 @@ config SENSORS_LM90 MAX6657, MAX6658, MAX6659, MAX6680, MAX6681, MAX6692, MAX6695, MAX6696, ON Semiconductor NCT1008, NCT210, NCT72, NCT214, NCT218, - Winbond/Nuvoton W83L771W/G/AWG/ASG, + Winbond/Nuvoton W83L771W/G/AWG/ASG, NCT7716, NCT7717 and NCT7718, Philips NE1618, SA56004, GMT G781, Texas Instruments TMP451 and TMP461 sensor chips. @@ -1510,9 +1550,10 @@ config SENSORS_LM90 config SENSORS_LM92 tristate "National Semiconductor LM92 and compatibles" depends on I2C + select REGMAP_I2C help If you say yes here you get support for National Semiconductor LM92 - and Maxim MAX6635 sensor chips. + and LM76 as well as Maxim MAX6633/6634/6635 sensor chips. This driver can also be built as a module. If so, the module will be called lm92. @@ -1531,6 +1572,7 @@ config SENSORS_LM93 config SENSORS_LM95234 tristate "National Semiconductor LM95234 and compatibles" depends on I2C + select REGMAP_I2C help If you say yes here you get support for the LM95233 and LM95234 temperature sensor chips. @@ -1561,6 +1603,7 @@ config SENSORS_LM95245 config SENSORS_PC87360 tristate "National Semiconductor PC87360 family" + depends on HAS_IOPORT depends on !PPC select HWMON_VID help @@ -1575,6 +1618,7 @@ config SENSORS_PC87360 config SENSORS_PC87427 tristate "National Semiconductor PC87427" + depends on HAS_IOPORT depends on !PPC help If you say yes here you get access to the hardware monitoring @@ -1602,10 +1646,11 @@ config SENSORS_NTC_THERMISTOR B57891S0103 from EPCOS. This driver can also be built as a module. If so, the module - will be called ntc-thermistor. + will be called ntc_thermistor. config SENSORS_NCT6683 tristate "Nuvoton NCT6683D" + depends on HAS_IOPORT depends on !PPC help If you say yes here you get support for the hardware monitoring @@ -1627,6 +1672,7 @@ config SENSORS_NCT6775_CORE config SENSORS_NCT6775 tristate "Platform driver for Nuvoton NCT6775F and compatibles" + depends on HAS_IOPORT depends on !PPC depends on ACPI || ACPI=n select HWMON_VID @@ -1658,6 +1704,17 @@ config SENSORS_NCT6775_I2C This driver can also be built as a module. If so, the module will be called nct6775-i2c. +config SENSORS_NCT7363 + tristate "Nuvoton NCT7363Y" + depends on I2C + select REGMAP_I2C + help + If you say yes here you get support for the Nuvoton NCT7363Y + hardware monitoring chip. + + This driver can also be built as a module. If so, the module + will be called nct7363. + config SENSORS_NCT7802 tristate "Nuvoton NCT7802Y" depends on I2C @@ -1738,17 +1795,6 @@ config SENSORS_NZXT_SMART2 source "drivers/hwmon/occ/Kconfig" -config SENSORS_OXP - tristate "OneXPlayer EC fan control" - depends on ACPI - depends on X86 - help - If you say yes here you get support for fan readings and control over - OneXPlayer handheld devices. Only OneXPlayer mini AMD handheld variant - boards are supported. - - Can also be built as a module. In that case it will be called oxp-sensors. - config SENSORS_PCF8591 tristate "Philips PCF8591 ADC/DAC" depends on I2C @@ -1778,7 +1824,7 @@ config SENSORS_PT5161L config SENSORS_PWM_FAN tristate "PWM fan" - depends on (PWM && OF) || COMPILE_TEST + depends on PWM || COMPILE_TEST depends on THERMAL || THERMAL=n help If you say yes here you get support for fans connected to PWM lines. @@ -1788,6 +1834,18 @@ config SENSORS_PWM_FAN This driver can also be built as a module. If so, the module will be called pwm-fan. +config SENSORS_QNAP_MCU_HWMON + tristate "QNAP MCU hardware monitoring" + depends on MFD_QNAP_MCU + depends on THERMAL || THERMAL=n + help + Say yes here to enable support for fan and temperature sensor + connected to a QNAP MCU, as found in a number of QNAP network + attached storage devices. + + This driver can also be built as a module. If so, the module + will be called qnap-mcu-hwmon. + config SENSORS_RASPBERRYPI_HWMON tristate "Raspberry Pi voltage monitor" depends on RASPBERRYPI_FIRMWARE || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE) @@ -1883,7 +1941,7 @@ config SENSORS_SHTC1 config SENSORS_SIS5595 tristate "Silicon Integrated Systems Corp. SiS5595" - depends on PCI + depends on PCI && HAS_IOPORT help If you say yes here you get support for the integrated sensors in SiS5595 South Bridges. @@ -1903,6 +1961,7 @@ config SENSORS_SY7636A config SENSORS_DME1737 tristate "SMSC DME1737, SCH311x and compatibles" + depends on HAS_IOPORT depends on I2C && !PPC select HWMON_VID help @@ -1959,6 +2018,7 @@ config SENSORS_EMC6W201 config SENSORS_SMSC47M1 tristate "SMSC LPC47M10x and compatibles" + depends on HAS_IOPORT depends on !PPC help If you say yes here you get support for the integrated fan @@ -1993,6 +2053,7 @@ config SENSORS_SMSC47M192 config SENSORS_SMSC47B397 tristate "SMSC LPC47B397-NC" + depends on HAS_IOPORT depends on !PPC help If you say yes here you get support for the SMSC LPC47B397-NC @@ -2007,6 +2068,7 @@ config SENSORS_SCH56XX_COMMON config SENSORS_SCH5627 tristate "SMSC SCH5627" + depends on HAS_IOPORT depends on !PPC && WATCHDOG select SENSORS_SCH56XX_COMMON select WATCHDOG_CORE @@ -2020,6 +2082,7 @@ config SENSORS_SCH5627 config SENSORS_SCH5636 tristate "SMSC SCH5636" + depends on HAS_IOPORT depends on !PPC && WATCHDOG select SENSORS_SCH56XX_COMMON select WATCHDOG_CORE @@ -2056,6 +2119,17 @@ config SENSORS_SFCTEMP This driver can also be built as a module. If so, the module will be called sfctemp. +config SENSORS_SG2042_MCU + tristate "Sophgo onboard MCU support" + depends on I2C + depends on ARCH_SOPHGO || COMPILE_TEST + help + Support for onboard MCU of Sophgo SG2042 SoCs. This mcu provides + power control and some basic information. + + This driver can be built as a module. If so, the module + will be called sg2042-mcu. + config SENSORS_SURFACE_FAN tristate "Surface Fan Driver" depends on SURFACE_AGGREGATOR @@ -2070,6 +2144,17 @@ config SENSORS_SURFACE_FAN Select M or Y here, if you want to be able to read the fan's speed. +config SENSORS_SURFACE_TEMP + tristate "Microsoft Surface Thermal Sensor Driver" + depends on SURFACE_AGGREGATOR + depends on SURFACE_AGGREGATOR_BUS + help + Driver for monitoring thermal sensors connected via the Surface + Aggregator Module (embedded controller) on Microsoft Surface devices. + + This driver can also be built as a module. If so, the module + will be called surface_temp. + config SENSORS_ADC128D818 tristate "Texas Instruments ADC128D818" depends on I2C @@ -2104,6 +2189,7 @@ config SENSORS_ADS7871 config SENSORS_AMC6821 tristate "Texas Instruments AMC6821" depends on I2C + select REGMAP_I2C help If you say yes here you get support for the Texas Instruments AMC6821 hardware monitoring chips. @@ -2127,11 +2213,12 @@ config SENSORS_INA2XX select REGMAP_I2C help If you say yes here you get support for INA219, INA220, INA226, - INA230, and INA231 power monitor chips. + INA230, INA231, INA260, and SY24655 power monitor chips. The INA2xx driver is configured for the default configuration of the part as described in the datasheet. - Default value for Rshunt is 10 mOhms. + Default value for Rshunt is 10 mOhms except for INA260 which has an + internal 2 mOhm shunt resistor. This driver can also be built as a module. If so, the module will be called ina2xx. @@ -2158,6 +2245,37 @@ config SENSORS_INA3221 This driver can also be built as a module. If so, the module will be called ina3221. +config SENSORS_SPD5118 + tristate "SPD5118 Compliant Temperature Sensors" + depends on I2C + select REGMAP_I2C + help + If you say yes here you get support for SPD5118 (JEDEC JESD300) + compliant temperature sensors. Such sensors are found on DDR5 memory + modules. + + This driver can also be built as a module. If so, the module + will be called spd5118. + +config SENSORS_SPD5118_DETECT + bool "Enable detect function" + depends on SENSORS_SPD5118 + default (!DMI || !X86) + help + If enabled, the driver auto-detects if a chip in the SPD address + range is compliant to the SPD51888 standard and auto-instantiates + if that is the case. If disabled, SPD5118 compliant devices have + to be instantiated by other means. On X86 systems with DMI support + this will typically be done from DMI DDR detection code in the + I2C SMBus subsystem. Devicetree based systems will instantiate + attached devices if the DIMMs are listed in the devicetree file. + + Disabling the detect function will speed up boot time and reduce + the risk of mis-detecting SPD5118 compliant devices. However, it + may result in missed DIMMs under some circumstances. + + If unsure, say Y. + config SENSORS_TC74 tristate "Microchip TC74" depends on I2C @@ -2203,10 +2321,12 @@ config SENSORS_TMP103 config SENSORS_TMP108 tristate "Texas Instruments TMP108" depends on I2C + depends on I3C || !I3C select REGMAP_I2C + select REGMAP_I3C if I3C help If you say yes here you get support for Texas Instruments TMP108 - sensor chips. + sensor chips and NXP P3T1085. This driver can also be built as a module. If so, the module will be called tmp108. @@ -2246,6 +2366,7 @@ config SENSORS_TMP464 config SENSORS_TMP513 tristate "Texas Instruments TMP513 and compatibles" depends on I2C + select REGMAP_I2C help If you say yes here you get support for Texas Instruments TMP512, and TMP513 temperature and power supply sensor chips. @@ -2272,7 +2393,7 @@ config SENSORS_VIA_CPUTEMP config SENSORS_VIA686A tristate "VIA686A" - depends on PCI + depends on PCI && HAS_IOPORT help If you say yes here you get support for the integrated sensors in Via 686A/B South Bridges. @@ -2282,6 +2403,7 @@ config SENSORS_VIA686A config SENSORS_VT1211 tristate "VIA VT1211" + depends on HAS_IOPORT depends on !PPC select HWMON_VID help @@ -2293,7 +2415,7 @@ config SENSORS_VT1211 config SENSORS_VT8231 tristate "VIA VT8231" - depends on PCI + depends on PCI && HAS_IOPORT select HWMON_VID help If you say yes here then you get support for the integrated sensors @@ -2401,6 +2523,7 @@ config SENSORS_W83L786NG config SENSORS_W83627HF tristate "Winbond W83627HF, W83627THF, W83637HF, W83687THF, W83697HF" + depends on HAS_IOPORT depends on !PPC select HWMON_VID help @@ -2413,6 +2536,7 @@ config SENSORS_W83627HF config SENSORS_W83627EHF tristate "Winbond W83627EHF/EHG/DHG/UHG, W83667HG" + depends on HAS_IOPORT depends on !PPC select HWMON_VID help @@ -2517,6 +2641,7 @@ config SENSORS_ASUS_WMI config SENSORS_ASUS_EC tristate "ASUS EC Sensors" depends on X86 + depends on ACPI_EC help If you say yes here you get support for the ACPI embedded controller hardware monitoring interface found in ASUS motherboards. The driver diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index 5c31808f6378..e3468d024ff3 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -31,7 +31,6 @@ obj-$(CONFIG_SENSORS_AD7414) += ad7414.o obj-$(CONFIG_SENSORS_AD7418) += ad7418.o obj-$(CONFIG_SENSORS_ADC128D818) += adc128d818.o obj-$(CONFIG_SENSORS_ADCXX) += adcxx.o -obj-$(CONFIG_SENSORS_ADM1021) += adm1021.o obj-$(CONFIG_SENSORS_ADM1025) += adm1025.o obj-$(CONFIG_SENSORS_ADM1026) += adm1026.o obj-$(CONFIG_SENSORS_ADM1029) += adm1029.o @@ -60,10 +59,12 @@ obj-$(CONFIG_SENSORS_ASUS_ROG_RYUJIN) += asus_rog_ryujin.o obj-$(CONFIG_SENSORS_ATXP1) += atxp1.o obj-$(CONFIG_SENSORS_AXI_FAN_CONTROL) += axi-fan-control.o obj-$(CONFIG_SENSORS_BT1_PVT) += bt1-pvt.o +obj-$(CONFIG_SENSORS_CGBC) += cgbc-hwmon.o obj-$(CONFIG_SENSORS_CHIPCAP2) += chipcap2.o obj-$(CONFIG_SENSORS_CORETEMP) += coretemp.o obj-$(CONFIG_SENSORS_CORSAIR_CPRO) += corsair-cpro.o obj-$(CONFIG_SENSORS_CORSAIR_PSU) += corsair-psu.o +obj-$(CONFIG_SENSORS_CROS_EC) += cros_ec_hwmon.o obj-$(CONFIG_SENSORS_DA9052_ADC)+= da9052-hwmon.o obj-$(CONFIG_SENSORS_DA9055)+= da9055-hwmon.o obj-$(CONFIG_SENSORS_DELL_SMM) += dell-smm-hwmon.o @@ -91,6 +92,7 @@ obj-$(CONFIG_SENSORS_GPIO_FAN) += gpio-fan.o obj-$(CONFIG_SENSORS_GXP_FAN_CTRL) += gxp-fan-ctrl.o obj-$(CONFIG_SENSORS_HIH6130) += hih6130.o obj-$(CONFIG_SENSORS_HS3001) += hs3001.o +obj-$(CONFIG_SENSORS_HTU31) += htu31.o obj-$(CONFIG_SENSORS_ULTRA45) += ultra45_env.o obj-$(CONFIG_SENSORS_I5500) += i5500_temp.o obj-$(CONFIG_SENSORS_I5K_AMB) += i5k_amb.o @@ -103,11 +105,13 @@ obj-$(CONFIG_SENSORS_INA2XX) += ina2xx.o obj-$(CONFIG_SENSORS_INA238) += ina238.o obj-$(CONFIG_SENSORS_INA3221) += ina3221.o obj-$(CONFIG_SENSORS_INTEL_M10_BMC_HWMON) += intel-m10-bmc-hwmon.o +obj-$(CONFIG_SENSORS_ISL28022) += isl28022.o obj-$(CONFIG_SENSORS_IT87) += it87.o obj-$(CONFIG_SENSORS_JC42) += jc42.o obj-$(CONFIG_SENSORS_K8TEMP) += k8temp.o obj-$(CONFIG_SENSORS_K10TEMP) += k10temp.o obj-$(CONFIG_SENSORS_LAN966X) += lan966x-hwmon.o +obj-$(CONFIG_SENSORS_LENOVO_EC) += lenovo-ec-sensors.o obj-$(CONFIG_SENSORS_LINEAGE) += lineage-pem.o obj-$(CONFIG_SENSORS_LOCHNAGAR) += lochnagar-hwmon.o obj-$(CONFIG_SENSORS_LM63) += lm63.o @@ -153,7 +157,6 @@ obj-$(CONFIG_SENSORS_MAX31760) += max31760.o obj-$(CONFIG_SENSORS_MAX6620) += max6620.o obj-$(CONFIG_SENSORS_MAX6621) += max6621.o obj-$(CONFIG_SENSORS_MAX6639) += max6639.o -obj-$(CONFIG_SENSORS_MAX6642) += max6642.o obj-$(CONFIG_SENSORS_MAX6650) += max6650.o obj-$(CONFIG_SENSORS_MAX6697) += max6697.o obj-$(CONFIG_SENSORS_MAX31790) += max31790.o @@ -171,6 +174,7 @@ obj-$(CONFIG_SENSORS_NCT6775_CORE) += nct6775-core.o nct6775-objs := nct6775-platform.o obj-$(CONFIG_SENSORS_NCT6775) += nct6775.o obj-$(CONFIG_SENSORS_NCT6775_I2C) += nct6775-i2c.o +obj-$(CONFIG_SENSORS_NCT7363) += nct7363.o obj-$(CONFIG_SENSORS_NCT7802) += nct7802.o obj-$(CONFIG_SENSORS_NCT7904) += nct7904.o obj-$(CONFIG_SENSORS_NPCM7XX) += npcm750-pwm-fan.o @@ -179,7 +183,6 @@ obj-$(CONFIG_SENSORS_NTC_THERMISTOR) += ntc_thermistor.o obj-$(CONFIG_SENSORS_NZXT_KRAKEN2) += nzxt-kraken2.o obj-$(CONFIG_SENSORS_NZXT_KRAKEN3) += nzxt-kraken3.o obj-$(CONFIG_SENSORS_NZXT_SMART2) += nzxt-smart2.o -obj-$(CONFIG_SENSORS_OXP) += oxp-sensors.o obj-$(CONFIG_SENSORS_PC87360) += pc87360.o obj-$(CONFIG_SENSORS_PC87427) += pc87427.o obj-$(CONFIG_SENSORS_PCF8591) += pcf8591.o @@ -187,6 +190,7 @@ obj-$(CONFIG_SENSORS_POWERZ) += powerz.o obj-$(CONFIG_SENSORS_POWR1220) += powr1220.o obj-$(CONFIG_SENSORS_PT5161L) += pt5161l.o obj-$(CONFIG_SENSORS_PWM_FAN) += pwm-fan.o +obj-$(CONFIG_SENSORS_QNAP_MCU_HWMON) += qnap-mcu-hwmon.o obj-$(CONFIG_SENSORS_RASPBERRYPI_HWMON) += raspberrypi-hwmon.o obj-$(CONFIG_SENSORS_SBTSI) += sbtsi_temp.o obj-$(CONFIG_SENSORS_SBRMI) += sbrmi.o @@ -194,6 +198,7 @@ obj-$(CONFIG_SENSORS_SCH56XX_COMMON)+= sch56xx-common.o obj-$(CONFIG_SENSORS_SCH5627) += sch5627.o obj-$(CONFIG_SENSORS_SCH5636) += sch5636.o obj-$(CONFIG_SENSORS_SFCTEMP) += sfctemp.o +obj-$(CONFIG_SENSORS_SG2042_MCU) += sg2042-mcu.o obj-$(CONFIG_SENSORS_SL28CPLD) += sl28cpld-hwmon.o obj-$(CONFIG_SENSORS_SHT15) += sht15.o obj-$(CONFIG_SENSORS_SHT21) += sht21.o @@ -206,8 +211,10 @@ obj-$(CONFIG_SENSORS_SMSC47B397)+= smsc47b397.o obj-$(CONFIG_SENSORS_SMSC47M1) += smsc47m1.o obj-$(CONFIG_SENSORS_SMSC47M192)+= smsc47m192.o obj-$(CONFIG_SENSORS_SPARX5) += sparx5-temp.o +obj-$(CONFIG_SENSORS_SPD5118) += spd5118.o obj-$(CONFIG_SENSORS_STTS751) += stts751.o obj-$(CONFIG_SENSORS_SURFACE_FAN)+= surface_fan.o +obj-$(CONFIG_SENSORS_SURFACE_TEMP)+= surface_temp.o obj-$(CONFIG_SENSORS_SY7636A) += sy7636a-hwmon.o obj-$(CONFIG_SENSORS_AMC6821) += amc6821.o obj-$(CONFIG_SENSORS_TC74) += tc74.o diff --git a/drivers/hwmon/abituguru.c b/drivers/hwmon/abituguru.c index 93653ea05430..ba8c68ae4595 100644 --- a/drivers/hwmon/abituguru.c +++ b/drivers/hwmon/abituguru.c @@ -1531,7 +1531,7 @@ static struct platform_driver abituguru_driver = { .pm = pm_sleep_ptr(&abituguru_pm), }, .probe = abituguru_probe, - .remove_new = abituguru_remove, + .remove = abituguru_remove, }; static int __init abituguru_detect(void) diff --git a/drivers/hwmon/abituguru3.c b/drivers/hwmon/abituguru3.c index 4501f0e49efb..b70330dc2198 100644 --- a/drivers/hwmon/abituguru3.c +++ b/drivers/hwmon/abituguru3.c @@ -1147,12 +1147,12 @@ static int abituguru3_resume(struct device *dev) static DEFINE_SIMPLE_DEV_PM_OPS(abituguru3_pm, abituguru3_suspend, abituguru3_resume); static struct platform_driver abituguru3_driver = { - .driver = { + .driver = { .name = ABIT_UGURU3_NAME, .pm = pm_sleep_ptr(&abituguru3_pm), }, .probe = abituguru3_probe, - .remove_new = abituguru3_remove, + .remove = abituguru3_remove, }; static int __init abituguru3_dmi_detect(void) diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c index 703666b95bf4..29ccdc2fb7ff 100644 --- a/drivers/hwmon/acpi_power_meter.c +++ b/drivers/hwmon/acpi_power_meter.c @@ -84,27 +84,17 @@ struct acpi_power_meter_resource { u64 power; u64 cap; u64 avg_interval; + bool power_alarm; int sensors_valid; unsigned long sensors_last_updated; - struct sensor_device_attribute sensors[NUM_SENSORS]; - int num_sensors; +#define POWER_METER_TRIP_AVERAGE_MIN_IDX 0 +#define POWER_METER_TRIP_AVERAGE_MAX_IDX 1 s64 trip[2]; int num_domain_devices; struct acpi_device **domain_devices; struct kobject *holders_dir; }; -struct sensor_template { - char *label; - ssize_t (*show)(struct device *dev, - struct device_attribute *devattr, - char *buf); - ssize_t (*set)(struct device *dev, - struct device_attribute *devattr, - const char *buf, size_t count); - int index; -}; - /* Averaging interval */ static int update_avg_interval(struct acpi_power_meter_resource *resource) { @@ -123,62 +113,6 @@ static int update_avg_interval(struct acpi_power_meter_resource *resource) return 0; } -static ssize_t show_avg_interval(struct device *dev, - struct device_attribute *devattr, - char *buf) -{ - struct acpi_device *acpi_dev = to_acpi_device(dev); - struct acpi_power_meter_resource *resource = acpi_dev->driver_data; - - mutex_lock(&resource->lock); - update_avg_interval(resource); - mutex_unlock(&resource->lock); - - return sprintf(buf, "%llu\n", resource->avg_interval); -} - -static ssize_t set_avg_interval(struct device *dev, - struct device_attribute *devattr, - const char *buf, size_t count) -{ - struct acpi_device *acpi_dev = to_acpi_device(dev); - struct acpi_power_meter_resource *resource = acpi_dev->driver_data; - union acpi_object arg0 = { ACPI_TYPE_INTEGER }; - struct acpi_object_list args = { 1, &arg0 }; - int res; - unsigned long temp; - unsigned long long data; - acpi_status status; - - res = kstrtoul(buf, 10, &temp); - if (res) - return res; - - if (temp > resource->caps.max_avg_interval || - temp < resource->caps.min_avg_interval) - return -EINVAL; - arg0.integer.value = temp; - - mutex_lock(&resource->lock); - status = acpi_evaluate_integer(resource->acpi_dev->handle, "_PAI", - &args, &data); - if (ACPI_SUCCESS(status)) - resource->avg_interval = temp; - mutex_unlock(&resource->lock); - - if (ACPI_FAILURE(status)) { - acpi_evaluation_failure_warn(resource->acpi_dev->handle, "_PAI", - status); - return -EINVAL; - } - - /* _PAI returns 0 on success, nonzero otherwise */ - if (data) - return -EINVAL; - - return count; -} - /* Cap functions */ static int update_cap(struct acpi_power_meter_resource *resource) { @@ -197,61 +131,6 @@ static int update_cap(struct acpi_power_meter_resource *resource) return 0; } -static ssize_t show_cap(struct device *dev, - struct device_attribute *devattr, - char *buf) -{ - struct acpi_device *acpi_dev = to_acpi_device(dev); - struct acpi_power_meter_resource *resource = acpi_dev->driver_data; - - mutex_lock(&resource->lock); - update_cap(resource); - mutex_unlock(&resource->lock); - - return sprintf(buf, "%llu\n", resource->cap * 1000); -} - -static ssize_t set_cap(struct device *dev, struct device_attribute *devattr, - const char *buf, size_t count) -{ - struct acpi_device *acpi_dev = to_acpi_device(dev); - struct acpi_power_meter_resource *resource = acpi_dev->driver_data; - union acpi_object arg0 = { ACPI_TYPE_INTEGER }; - struct acpi_object_list args = { 1, &arg0 }; - int res; - unsigned long temp; - unsigned long long data; - acpi_status status; - - res = kstrtoul(buf, 10, &temp); - if (res) - return res; - - temp = DIV_ROUND_CLOSEST(temp, 1000); - if (temp > resource->caps.max_cap || temp < resource->caps.min_cap) - return -EINVAL; - arg0.integer.value = temp; - - mutex_lock(&resource->lock); - status = acpi_evaluate_integer(resource->acpi_dev->handle, "_SHL", - &args, &data); - if (ACPI_SUCCESS(status)) - resource->cap = temp; - mutex_unlock(&resource->lock); - - if (ACPI_FAILURE(status)) { - acpi_evaluation_failure_warn(resource->acpi_dev->handle, "_SHL", - status); - return -EINVAL; - } - - /* _SHL returns 0 on success, nonzero otherwise */ - if (data) - return -EINVAL; - - return count; -} - /* Power meter trip points */ static int set_acpi_trip(struct acpi_power_meter_resource *resource) { @@ -286,32 +165,6 @@ static int set_acpi_trip(struct acpi_power_meter_resource *resource) return 0; } -static ssize_t set_trip(struct device *dev, struct device_attribute *devattr, - const char *buf, size_t count) -{ - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct acpi_device *acpi_dev = to_acpi_device(dev); - struct acpi_power_meter_resource *resource = acpi_dev->driver_data; - int res; - unsigned long temp; - - res = kstrtoul(buf, 10, &temp); - if (res) - return res; - - temp = DIV_ROUND_CLOSEST(temp, 1000); - - mutex_lock(&resource->lock); - resource->trip[attr->index - 7] = temp; - res = set_acpi_trip(resource); - mutex_unlock(&resource->lock); - - if (res) - return res; - - return count; -} - /* Power meter */ static int update_meter(struct acpi_power_meter_resource *resource) { @@ -338,192 +191,6 @@ static int update_meter(struct acpi_power_meter_resource *resource) return 0; } -static ssize_t show_power(struct device *dev, - struct device_attribute *devattr, - char *buf) -{ - struct acpi_device *acpi_dev = to_acpi_device(dev); - struct acpi_power_meter_resource *resource = acpi_dev->driver_data; - - mutex_lock(&resource->lock); - update_meter(resource); - mutex_unlock(&resource->lock); - - if (resource->power == UNKNOWN_POWER) - return -ENODATA; - - return sprintf(buf, "%llu\n", resource->power * 1000); -} - -/* Miscellaneous */ -static ssize_t show_str(struct device *dev, - struct device_attribute *devattr, - char *buf) -{ - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct acpi_device *acpi_dev = to_acpi_device(dev); - struct acpi_power_meter_resource *resource = acpi_dev->driver_data; - acpi_string val; - int ret; - - mutex_lock(&resource->lock); - switch (attr->index) { - case 0: - val = resource->model_number; - break; - case 1: - val = resource->serial_number; - break; - case 2: - val = resource->oem_info; - break; - default: - WARN(1, "Implementation error: unexpected attribute index %d\n", - attr->index); - val = ""; - break; - } - ret = sprintf(buf, "%s\n", val); - mutex_unlock(&resource->lock); - return ret; -} - -static ssize_t show_val(struct device *dev, - struct device_attribute *devattr, - char *buf) -{ - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct acpi_device *acpi_dev = to_acpi_device(dev); - struct acpi_power_meter_resource *resource = acpi_dev->driver_data; - u64 val = 0; - - switch (attr->index) { - case 0: - val = resource->caps.min_avg_interval; - break; - case 1: - val = resource->caps.max_avg_interval; - break; - case 2: - val = resource->caps.min_cap * 1000; - break; - case 3: - val = resource->caps.max_cap * 1000; - break; - case 4: - if (resource->caps.hysteresis == UNKNOWN_HYSTERESIS) - return sprintf(buf, "unknown\n"); - - val = resource->caps.hysteresis * 1000; - break; - case 5: - if (resource->caps.flags & POWER_METER_IS_BATTERY) - val = 1; - else - val = 0; - break; - case 6: - if (resource->power > resource->cap) - val = 1; - else - val = 0; - break; - case 7: - case 8: - if (resource->trip[attr->index - 7] < 0) - return sprintf(buf, "unknown\n"); - - val = resource->trip[attr->index - 7] * 1000; - break; - default: - WARN(1, "Implementation error: unexpected attribute index %d\n", - attr->index); - break; - } - - return sprintf(buf, "%llu\n", val); -} - -static ssize_t show_accuracy(struct device *dev, - struct device_attribute *devattr, - char *buf) -{ - struct acpi_device *acpi_dev = to_acpi_device(dev); - struct acpi_power_meter_resource *resource = acpi_dev->driver_data; - unsigned int acc = resource->caps.accuracy; - - return sprintf(buf, "%u.%u%%\n", acc / 1000, acc % 1000); -} - -static ssize_t show_name(struct device *dev, - struct device_attribute *devattr, - char *buf) -{ - return sprintf(buf, "%s\n", ACPI_POWER_METER_NAME); -} - -#define RO_SENSOR_TEMPLATE(_label, _show, _index) \ - { \ - .label = _label, \ - .show = _show, \ - .index = _index, \ - } - -#define RW_SENSOR_TEMPLATE(_label, _show, _set, _index) \ - { \ - .label = _label, \ - .show = _show, \ - .set = _set, \ - .index = _index, \ - } - -/* Sensor descriptions. If you add a sensor, update NUM_SENSORS above! */ -static struct sensor_template meter_attrs[] = { - RO_SENSOR_TEMPLATE(POWER_AVERAGE_NAME, show_power, 0), - RO_SENSOR_TEMPLATE("power1_accuracy", show_accuracy, 0), - RO_SENSOR_TEMPLATE("power1_average_interval_min", show_val, 0), - RO_SENSOR_TEMPLATE("power1_average_interval_max", show_val, 1), - RO_SENSOR_TEMPLATE("power1_is_battery", show_val, 5), - RW_SENSOR_TEMPLATE(POWER_AVG_INTERVAL_NAME, show_avg_interval, - set_avg_interval, 0), - {}, -}; - -static struct sensor_template misc_cap_attrs[] = { - RO_SENSOR_TEMPLATE("power1_cap_min", show_val, 2), - RO_SENSOR_TEMPLATE("power1_cap_max", show_val, 3), - RO_SENSOR_TEMPLATE("power1_cap_hyst", show_val, 4), - RO_SENSOR_TEMPLATE(POWER_ALARM_NAME, show_val, 6), - {}, -}; - -static struct sensor_template ro_cap_attrs[] = { - RO_SENSOR_TEMPLATE(POWER_CAP_NAME, show_cap, 0), - {}, -}; - -static struct sensor_template rw_cap_attrs[] = { - RW_SENSOR_TEMPLATE(POWER_CAP_NAME, show_cap, set_cap, 0), - {}, -}; - -static struct sensor_template trip_attrs[] = { - RW_SENSOR_TEMPLATE("power1_average_min", show_val, set_trip, 7), - RW_SENSOR_TEMPLATE("power1_average_max", show_val, set_trip, 8), - {}, -}; - -static struct sensor_template misc_attrs[] = { - RO_SENSOR_TEMPLATE("name", show_name, 0), - RO_SENSOR_TEMPLATE("power1_model_number", show_str, 0), - RO_SENSOR_TEMPLATE("power1_oem_info", show_str, 2), - RO_SENSOR_TEMPLATE("power1_serial_number", show_str, 1), - {}, -}; - -#undef RO_SENSOR_TEMPLATE -#undef RW_SENSOR_TEMPLATE - /* Read power domain data */ static void remove_domain_devices(struct acpi_power_meter_resource *resource) { @@ -625,108 +292,434 @@ end: return res; } -/* Registration and deregistration */ -static int register_attrs(struct acpi_power_meter_resource *resource, - struct sensor_template *attrs) +static int set_trip(struct acpi_power_meter_resource *resource, u16 trip_idx, + unsigned long trip) { - struct device *dev = &resource->acpi_dev->dev; - struct sensor_device_attribute *sensors = - &resource->sensors[resource->num_sensors]; - int res = 0; - - while (attrs->label) { - sensors->dev_attr.attr.name = attrs->label; - sensors->dev_attr.attr.mode = 0444; - sensors->dev_attr.show = attrs->show; - sensors->index = attrs->index; + unsigned long trip_bk; + int ret; - if (attrs->set) { - sensors->dev_attr.attr.mode |= 0200; - sensors->dev_attr.store = attrs->set; - } + trip = DIV_ROUND_CLOSEST(trip, 1000); + trip_bk = resource->trip[trip_idx]; - sysfs_attr_init(&sensors->dev_attr.attr); - res = device_create_file(dev, &sensors->dev_attr); - if (res) { - sensors->dev_attr.attr.name = NULL; - goto error; - } - sensors++; - resource->num_sensors++; - attrs++; + resource->trip[trip_idx] = trip; + ret = set_acpi_trip(resource); + if (ret) { + dev_err(&resource->acpi_dev->dev, "set %s failed.\n", + (trip_idx == POWER_METER_TRIP_AVERAGE_MIN_IDX) ? + "power1_average_min" : "power1_average_max"); + resource->trip[trip_idx] = trip_bk; } -error: - return res; + return ret; } -static void remove_attrs(struct acpi_power_meter_resource *resource) +static int set_cap(struct acpi_power_meter_resource *resource, + unsigned long cap) { - int i; + union acpi_object arg0 = { ACPI_TYPE_INTEGER }; + struct acpi_object_list args = { 1, &arg0 }; + unsigned long long data; + acpi_status status; - for (i = 0; i < resource->num_sensors; i++) { - if (!resource->sensors[i].dev_attr.attr.name) - continue; - device_remove_file(&resource->acpi_dev->dev, - &resource->sensors[i].dev_attr); + cap = DIV_ROUND_CLOSEST(cap, 1000); + if (cap > resource->caps.max_cap || cap < resource->caps.min_cap) + return -EINVAL; + + arg0.integer.value = cap; + status = acpi_evaluate_integer(resource->acpi_dev->handle, "_SHL", + &args, &data); + if (ACPI_FAILURE(status)) { + acpi_evaluation_failure_warn(resource->acpi_dev->handle, "_SHL", + status); + return -EINVAL; } + resource->cap = cap; - remove_domain_devices(resource); + /* _SHL returns 0 on success, nonzero otherwise */ + if (data) + return -EINVAL; - resource->num_sensors = 0; + return 0; } -static int setup_attrs(struct acpi_power_meter_resource *resource) +static int set_avg_interval(struct acpi_power_meter_resource *resource, + unsigned long val) { - int res = 0; + union acpi_object arg0 = { ACPI_TYPE_INTEGER }; + struct acpi_object_list args = { 1, &arg0 }; + unsigned long long data; + acpi_status status; - res = read_domain_devices(resource); - if (res) - return res; + if (val > resource->caps.max_avg_interval || + val < resource->caps.min_avg_interval) + return -EINVAL; - if (resource->caps.flags & POWER_METER_CAN_MEASURE) { - res = register_attrs(resource, meter_attrs); - if (res) - goto error; + arg0.integer.value = val; + status = acpi_evaluate_integer(resource->acpi_dev->handle, "_PAI", + &args, &data); + if (ACPI_FAILURE(status)) { + acpi_evaluation_failure_warn(resource->acpi_dev->handle, "_PAI", + status); + return -EINVAL; } + resource->avg_interval = val; - if (resource->caps.flags & POWER_METER_CAN_CAP) { - if (!can_cap_in_hardware()) { - dev_warn(&resource->acpi_dev->dev, - "Ignoring unsafe software power cap!\n"); - goto skip_unsafe_cap; + /* _PAI returns 0 on success, nonzero otherwise */ + if (data) + return -EINVAL; + + return 0; +} + +static int get_power_alarm_state(struct acpi_power_meter_resource *resource, + long *val) +{ + int ret; + + ret = update_meter(resource); + if (ret) + return ret; + + /* need to update cap if not to support the notification. */ + if (!(resource->caps.flags & POWER_METER_CAN_NOTIFY)) { + ret = update_cap(resource); + if (ret) + return ret; + resource->power_alarm = resource->power > resource->cap; + *val = resource->power_alarm; + } else { + *val = resource->power_alarm || resource->power > resource->cap; + resource->power_alarm = resource->power > resource->cap; + } + + return 0; +} + +static umode_t power_meter_is_visible(const void *data, + enum hwmon_sensor_types type, + u32 attr, int channel) +{ + const struct acpi_power_meter_resource *res = data; + + if (type != hwmon_power) + return 0; + + switch (attr) { + case hwmon_power_average: + case hwmon_power_average_interval_min: + case hwmon_power_average_interval_max: + if (res->caps.flags & POWER_METER_CAN_MEASURE) + return 0444; + break; + case hwmon_power_average_interval: + if (res->caps.flags & POWER_METER_CAN_MEASURE) + return 0644; + break; + case hwmon_power_cap_min: + case hwmon_power_cap_max: + case hwmon_power_alarm: + if (res->caps.flags & POWER_METER_CAN_CAP && can_cap_in_hardware()) + return 0444; + break; + case hwmon_power_cap: + if (res->caps.flags & POWER_METER_CAN_CAP && can_cap_in_hardware()) { + if (res->caps.configurable_cap) + return 0644; + else + return 0444; } + break; + default: + break; + } + + return 0; +} - if (resource->caps.configurable_cap) - res = register_attrs(resource, rw_cap_attrs); - else - res = register_attrs(resource, ro_cap_attrs); +static int power_meter_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + int ret = 0; - if (res) - goto error; + if (type != hwmon_power) + return -EINVAL; - res = register_attrs(resource, misc_cap_attrs); - if (res) - goto error; + guard(mutex)(&res->lock); + + switch (attr) { + case hwmon_power_average: + ret = update_meter(res); + if (ret) + return ret; + if (res->power == UNKNOWN_POWER) + return -ENODATA; + *val = res->power * 1000; + break; + case hwmon_power_average_interval_min: + *val = res->caps.min_avg_interval; + break; + case hwmon_power_average_interval_max: + *val = res->caps.max_avg_interval; + break; + case hwmon_power_average_interval: + ret = update_avg_interval(res); + if (ret) + return ret; + *val = (res)->avg_interval; + break; + case hwmon_power_cap_min: + *val = res->caps.min_cap * 1000; + break; + case hwmon_power_cap_max: + *val = res->caps.max_cap * 1000; + break; + case hwmon_power_alarm: + ret = get_power_alarm_state(res, val); + if (ret) + return ret; + break; + case hwmon_power_cap: + ret = update_cap(res); + if (ret) + return ret; + *val = res->cap * 1000; + break; + default: + break; } -skip_unsafe_cap: - if (resource->caps.flags & POWER_METER_CAN_TRIP) { - res = register_attrs(resource, trip_attrs); - if (res) - goto error; + return 0; +} + +static int power_meter_write(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long val) +{ + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + int ret; + + if (type != hwmon_power) + return -EINVAL; + + guard(mutex)(&res->lock); + switch (attr) { + case hwmon_power_cap: + ret = set_cap(res, val); + break; + case hwmon_power_average_interval: + ret = set_avg_interval(res, val); + break; + default: + ret = -EOPNOTSUPP; } - res = register_attrs(resource, misc_attrs); - if (res) - goto error; + return ret; +} - return res; -error: - remove_attrs(resource); - return res; +static const struct hwmon_channel_info * const power_meter_info[] = { + HWMON_CHANNEL_INFO(power, HWMON_P_AVERAGE | + HWMON_P_AVERAGE_INTERVAL | HWMON_P_AVERAGE_INTERVAL_MIN | + HWMON_P_AVERAGE_INTERVAL_MAX | HWMON_P_CAP | HWMON_P_CAP_MIN | + HWMON_P_CAP_MAX | HWMON_P_ALARM), + NULL +}; + +static const struct hwmon_ops power_meter_ops = { + .is_visible = power_meter_is_visible, + .read = power_meter_read, + .write = power_meter_write, +}; + +static const struct hwmon_chip_info power_meter_chip_info = { + .ops = &power_meter_ops, + .info = power_meter_info, +}; + +static ssize_t power1_average_max_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + unsigned long trip; + int ret; + + ret = kstrtoul(buf, 10, &trip); + if (ret) + return ret; + + mutex_lock(&res->lock); + ret = set_trip(res, POWER_METER_TRIP_AVERAGE_MAX_IDX, trip); + mutex_unlock(&res->lock); + + return ret == 0 ? count : ret; +} + +static ssize_t power1_average_min_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + unsigned long trip; + int ret; + + ret = kstrtoul(buf, 10, &trip); + if (ret) + return ret; + + mutex_lock(&res->lock); + ret = set_trip(res, POWER_METER_TRIP_AVERAGE_MIN_IDX, trip); + mutex_unlock(&res->lock); + + return ret == 0 ? count : ret; +} + +static ssize_t power1_average_min_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + + if (res->trip[POWER_METER_TRIP_AVERAGE_MIN_IDX] < 0) + return sysfs_emit(buf, "unknown\n"); + + return sysfs_emit(buf, "%lld\n", + res->trip[POWER_METER_TRIP_AVERAGE_MIN_IDX] * 1000); +} + +static ssize_t power1_average_max_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + + if (res->trip[POWER_METER_TRIP_AVERAGE_MAX_IDX] < 0) + return sysfs_emit(buf, "unknown\n"); + + return sysfs_emit(buf, "%lld\n", + res->trip[POWER_METER_TRIP_AVERAGE_MAX_IDX] * 1000); +} + +static ssize_t power1_cap_hyst_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + + if (res->caps.hysteresis == UNKNOWN_HYSTERESIS) + return sysfs_emit(buf, "unknown\n"); + + return sysfs_emit(buf, "%llu\n", res->caps.hysteresis * 1000); +} + +static ssize_t power1_accuracy_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + unsigned int acc = res->caps.accuracy; + + return sysfs_emit(buf, "%u.%u%%\n", acc / 1000, acc % 1000); } +static ssize_t power1_is_battery_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + + return sysfs_emit(buf, "%u\n", + res->caps.flags & POWER_METER_IS_BATTERY ? 1 : 0); +} + +static ssize_t power1_model_number_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + + return sysfs_emit(buf, "%s\n", res->model_number); +} + +static ssize_t power1_oem_info_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + + return sysfs_emit(buf, "%s\n", res->oem_info); +} + +static ssize_t power1_serial_number_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + + return sysfs_emit(buf, "%s\n", res->serial_number); +} + +/* depend on POWER_METER_CAN_TRIP */ +static DEVICE_ATTR_RW(power1_average_max); +static DEVICE_ATTR_RW(power1_average_min); + +/* depend on POWER_METER_CAN_CAP */ +static DEVICE_ATTR_RO(power1_cap_hyst); + +/* depend on POWER_METER_CAN_MEASURE */ +static DEVICE_ATTR_RO(power1_accuracy); +static DEVICE_ATTR_RO(power1_is_battery); + +static DEVICE_ATTR_RO(power1_model_number); +static DEVICE_ATTR_RO(power1_oem_info); +static DEVICE_ATTR_RO(power1_serial_number); + +static umode_t power_extra_is_visible(struct kobject *kobj, + struct attribute *attr, int idx) +{ + struct device *dev = kobj_to_dev(kobj); + struct acpi_power_meter_resource *res = dev_get_drvdata(dev); + + if (attr == &dev_attr_power1_is_battery.attr || + attr == &dev_attr_power1_accuracy.attr) { + if ((res->caps.flags & POWER_METER_CAN_MEASURE) == 0) + return 0; + } + + if (attr == &dev_attr_power1_cap_hyst.attr) { + if ((res->caps.flags & POWER_METER_CAN_CAP) == 0) { + return 0; + } else if (!can_cap_in_hardware()) { + dev_warn(&res->acpi_dev->dev, + "Ignoring unsafe software power cap!\n"); + return 0; + } + } + + if (attr == &dev_attr_power1_average_max.attr || + attr == &dev_attr_power1_average_min.attr) { + if ((res->caps.flags & POWER_METER_CAN_TRIP) == 0) + return 0; + } + + return attr->mode; +} + +static struct attribute *power_extra_attrs[] = { + &dev_attr_power1_average_max.attr, + &dev_attr_power1_average_min.attr, + &dev_attr_power1_cap_hyst.attr, + &dev_attr_power1_accuracy.attr, + &dev_attr_power1_is_battery.attr, + &dev_attr_power1_model_number.attr, + &dev_attr_power1_oem_info.attr, + &dev_attr_power1_serial_number.attr, + NULL +}; + +static const struct attribute_group power_extra_group = { + .attrs = power_extra_attrs, + .is_visible = power_extra_is_visible, +}; + +__ATTRIBUTE_GROUPS(power_extra); + static void free_capabilities(struct acpi_power_meter_resource *resource) { acpi_string *str; @@ -834,24 +827,42 @@ static void acpi_power_meter_notify(struct acpi_device *device, u32 event) case METER_NOTIFY_CONFIG: mutex_lock(&resource->lock); free_capabilities(resource); + remove_domain_devices(resource); + hwmon_device_unregister(resource->hwmon_dev); res = read_capabilities(resource); - mutex_unlock(&resource->lock); if (res) - break; - - remove_attrs(resource); - setup_attrs(resource); + dev_err_once(&device->dev, "read capabilities failed.\n"); + res = read_domain_devices(resource); + if (res && res != -ENODEV) + dev_err_once(&device->dev, "read domain devices failed.\n"); + resource->hwmon_dev = + hwmon_device_register_with_info(&device->dev, + ACPI_POWER_METER_NAME, + resource, + &power_meter_chip_info, + power_extra_groups); + if (IS_ERR(resource->hwmon_dev)) + dev_err_once(&device->dev, "register hwmon device failed.\n"); + mutex_unlock(&resource->lock); break; case METER_NOTIFY_TRIP: sysfs_notify(&device->dev.kobj, NULL, POWER_AVERAGE_NAME); break; case METER_NOTIFY_CAP: + mutex_lock(&resource->lock); + res = update_cap(resource); + if (res) + dev_err_once(&device->dev, "update cap failed when capping value is changed.\n"); + mutex_unlock(&resource->lock); sysfs_notify(&device->dev.kobj, NULL, POWER_CAP_NAME); break; case METER_NOTIFY_INTERVAL: sysfs_notify(&device->dev.kobj, NULL, POWER_AVG_INTERVAL_NAME); break; case METER_NOTIFY_CAPPING: + mutex_lock(&resource->lock); + resource->power_alarm = true; + mutex_unlock(&resource->lock); sysfs_notify(&device->dev.kobj, NULL, POWER_ALARM_NAME); dev_info(&device->dev, "Capping in progress.\n"); break; @@ -883,6 +894,22 @@ static int acpi_power_meter_add(struct acpi_device *device) strcpy(acpi_device_class(device), ACPI_POWER_METER_CLASS); device->driver_data = resource; +#if IS_REACHABLE(CONFIG_ACPI_IPMI) + /* + * On Dell systems several methods of acpi_power_meter access + * variables in IPMI region, so wait until IPMI space handler is + * installed by acpi_ipmi and also wait until SMI is selected to make + * the space handler fully functional. + */ + if (dmi_match(DMI_SYS_VENDOR, "Dell Inc.")) { + struct acpi_device *ipi_device = acpi_dev_get_first_match_dev("IPI0001", NULL, -1); + + if (ipi_device && acpi_wait_for_acpi_ipmi()) + dev_warn(&device->dev, "Waiting for ACPI IPMI timeout"); + acpi_dev_put(ipi_device); + } +#endif + res = read_capabilities(resource); if (res) goto exit_free; @@ -890,11 +917,16 @@ static int acpi_power_meter_add(struct acpi_device *device) resource->trip[0] = -1; resource->trip[1] = -1; - res = setup_attrs(resource); - if (res) + /* _PMD method is optional. */ + res = read_domain_devices(resource); + if (res && res != -ENODEV) goto exit_free_capability; - resource->hwmon_dev = hwmon_device_register(&device->dev); + resource->hwmon_dev = + hwmon_device_register_with_info(&device->dev, + ACPI_POWER_METER_NAME, resource, + &power_meter_chip_info, + power_extra_groups); if (IS_ERR(resource->hwmon_dev)) { res = PTR_ERR(resource->hwmon_dev); goto exit_remove; @@ -904,7 +936,7 @@ static int acpi_power_meter_add(struct acpi_device *device) goto exit; exit_remove: - remove_attrs(resource); + remove_domain_devices(resource); exit_free_capability: free_capabilities(resource); exit_free: @@ -923,7 +955,7 @@ static void acpi_power_meter_remove(struct acpi_device *device) resource = acpi_driver_data(device); hwmon_device_unregister(resource->hwmon_dev); - remove_attrs(resource); + remove_domain_devices(resource); free_capabilities(resource); kfree(resource); diff --git a/drivers/hwmon/ad7314.c b/drivers/hwmon/ad7314.c index 7802bbf5f958..59424103f634 100644 --- a/drivers/hwmon/ad7314.c +++ b/drivers/hwmon/ad7314.c @@ -22,11 +22,13 @@ */ #define AD7314_TEMP_MASK 0x7FE0 #define AD7314_TEMP_SHIFT 5 +#define AD7314_LEADING_ZEROS_MASK BIT(15) /* * ADT7301 and ADT7302 temperature masks */ #define ADT7301_TEMP_MASK 0x3FFF +#define ADT7301_LEADING_ZEROS_MASK (BIT(15) | BIT(14)) enum ad7314_variant { adt7301, @@ -65,12 +67,20 @@ static ssize_t ad7314_temperature_show(struct device *dev, return ret; switch (spi_get_device_id(chip->spi_dev)->driver_data) { case ad7314: + if (ret & AD7314_LEADING_ZEROS_MASK) { + /* Invalid read-out, leading zero part is missing */ + return -EIO; + } data = (ret & AD7314_TEMP_MASK) >> AD7314_TEMP_SHIFT; data = sign_extend32(data, 9); return sprintf(buf, "%d\n", 250 * data); case adt7301: case adt7302: + if (ret & ADT7301_LEADING_ZEROS_MASK) { + /* Invalid read-out, leading zero part is missing */ + return -EIO; + } /* * Documented as a 13 bit twos complement register * with a sign bit - which is a 14 bit 2's complement diff --git a/drivers/hwmon/ad7414.c b/drivers/hwmon/ad7414.c index 7f1bef59046f..f0b17e59827f 100644 --- a/drivers/hwmon/ad7414.c +++ b/drivers/hwmon/ad7414.c @@ -205,7 +205,7 @@ static int ad7414_probe(struct i2c_client *client) } static const struct i2c_device_id ad7414_id[] = { - { "ad7414", 0 }, + { "ad7414" }, {} }; MODULE_DEVICE_TABLE(i2c, ad7414_id); diff --git a/drivers/hwmon/ad7418.c b/drivers/hwmon/ad7418.c index 4829f83ff52e..7a132accdf8a 100644 --- a/drivers/hwmon/ad7418.c +++ b/drivers/hwmon/ad7418.c @@ -230,8 +230,6 @@ static void ad7418_init_client(struct i2c_client *client) } } -static const struct i2c_device_id ad7418_id[]; - static int ad7418_probe(struct i2c_client *client) { struct device *dev = &client->dev; @@ -252,10 +250,7 @@ static int ad7418_probe(struct i2c_client *client) mutex_init(&data->lock); data->client = client; - if (dev->of_node) - data->type = (uintptr_t)of_device_get_match_data(dev); - else - data->type = i2c_match_id(ad7418_id, client)->driver_data; + data->type = (uintptr_t)i2c_get_match_data(client); switch (data->type) { case ad7416: diff --git a/drivers/hwmon/adc128d818.c b/drivers/hwmon/adc128d818.c index 46e3c8c50765..5e805d4ee76a 100644 --- a/drivers/hwmon/adc128d818.c +++ b/drivers/hwmon/adc128d818.c @@ -58,7 +58,6 @@ static const u8 num_inputs[] = { 7, 8, 4, 6 }; struct adc128_data { struct i2c_client *client; - struct regulator *regulator; int vref; /* Reference voltage in mV */ struct mutex update_lock; u8 mode; /* Operation mode */ @@ -176,7 +175,7 @@ static ssize_t adc128_in_store(struct device *dev, mutex_lock(&data->update_lock); /* 10 mV LSB on limit registers */ - regval = clamp_val(DIV_ROUND_CLOSEST(val, 10), 0, 255); + regval = DIV_ROUND_CLOSEST(clamp_val(val, 0, 2550), 10); data->in[index][nr] = regval << 4; reg = index == 1 ? ADC128_REG_IN_MIN(nr) : ADC128_REG_IN_MAX(nr); i2c_smbus_write_byte_data(data->client, reg, regval); @@ -214,7 +213,7 @@ static ssize_t adc128_temp_store(struct device *dev, return err; mutex_lock(&data->update_lock); - regval = clamp_val(DIV_ROUND_CLOSEST(val, 1000), -128, 127); + regval = DIV_ROUND_CLOSEST(clamp_val(val, -128000, 127000), 1000); data->temp[index] = regval << 1; i2c_smbus_write_byte_data(data->client, index == 1 ? ADC128_REG_TEMP_MAX @@ -389,7 +388,7 @@ static int adc128_detect(struct i2c_client *client, struct i2c_board_info *info) return 0; } -static int adc128_init_client(struct adc128_data *data) +static int adc128_init_client(struct adc128_data *data, bool external_vref) { struct i2c_client *client = data->client; int err; @@ -408,7 +407,7 @@ static int adc128_init_client(struct adc128_data *data) regval |= data->mode << 1; /* If external vref is selected, configure the chip to use it */ - if (data->regulator) + if (external_vref) regval |= 0x01; /* Write advanced configuration register */ @@ -430,9 +429,9 @@ static int adc128_init_client(struct adc128_data *data) static int adc128_probe(struct i2c_client *client) { struct device *dev = &client->dev; - struct regulator *regulator; struct device *hwmon_dev; struct adc128_data *data; + bool external_vref; int err, vref; data = devm_kzalloc(dev, sizeof(struct adc128_data), GFP_KERNEL); @@ -440,20 +439,15 @@ static int adc128_probe(struct i2c_client *client) return -ENOMEM; /* vref is optional. If specified, is used as chip reference voltage */ - regulator = devm_regulator_get_optional(dev, "vref"); - if (!IS_ERR(regulator)) { - data->regulator = regulator; - err = regulator_enable(regulator); - if (err < 0) - return err; - vref = regulator_get_voltage(regulator); - if (vref < 0) { - err = vref; - goto error; - } - data->vref = DIV_ROUND_CLOSEST(vref, 1000); - } else { + vref = devm_regulator_get_enable_read_voltage(dev, "vref"); + if (vref == -ENODEV) { + external_vref = false; data->vref = 2560; /* 2.56V, in mV */ + } else if (vref < 0) { + return vref; + } else { + external_vref = true; + data->vref = DIV_ROUND_CLOSEST(vref, 1000); } /* Operation mode is optional. If unspecified, keep current mode */ @@ -461,13 +455,12 @@ static int adc128_probe(struct i2c_client *client) if (data->mode > 3) { dev_err(dev, "invalid operation mode %d\n", data->mode); - err = -EINVAL; - goto error; + return -EINVAL; } } else { err = i2c_smbus_read_byte_data(client, ADC128_REG_CONFIG_ADV); if (err < 0) - goto error; + return err; data->mode = (err >> 1) & ADC128_REG_MASK; } @@ -476,35 +469,18 @@ static int adc128_probe(struct i2c_client *client) mutex_init(&data->update_lock); /* Initialize the chip */ - err = adc128_init_client(data); + err = adc128_init_client(data, external_vref); if (err < 0) - goto error; + return err; hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, data, adc128_groups); - if (IS_ERR(hwmon_dev)) { - err = PTR_ERR(hwmon_dev); - goto error; - } - - return 0; - -error: - if (data->regulator) - regulator_disable(data->regulator); - return err; -} - -static void adc128_remove(struct i2c_client *client) -{ - struct adc128_data *data = i2c_get_clientdata(client); - if (data->regulator) - regulator_disable(data->regulator); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id adc128_id[] = { - { "adc128d818", 0 }, + { "adc128d818" }, { } }; MODULE_DEVICE_TABLE(i2c, adc128_id); @@ -522,7 +498,6 @@ static struct i2c_driver adc128_driver = { .of_match_table = of_match_ptr(adc128_of_match), }, .probe = adc128_probe, - .remove = adc128_remove, .id_table = adc128_id, .detect = adc128_detect, .address_list = normal_i2c, diff --git a/drivers/hwmon/adm1021.c b/drivers/hwmon/adm1021.c deleted file mode 100644 index 7c15398ebb37..000000000000 --- a/drivers/hwmon/adm1021.c +++ /dev/null @@ -1,505 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * adm1021.c - Part of lm_sensors, Linux kernel modules for hardware - * monitoring - * Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl> and - * Philip Edelbrock <phil@netroedge.com> - */ - -#include <linux/module.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/jiffies.h> -#include <linux/i2c.h> -#include <linux/hwmon.h> -#include <linux/hwmon-sysfs.h> -#include <linux/err.h> -#include <linux/mutex.h> - - -/* Addresses to scan */ -static const unsigned short normal_i2c[] = { - 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e, I2C_CLIENT_END }; - -enum chips { - adm1021, adm1023, max1617, max1617a, thmc10, lm84, gl523sm, mc1066 }; - -/* adm1021 constants specified below */ - -/* The adm1021 registers */ -/* Read-only */ -/* For nr in 0-1 */ -#define ADM1021_REG_TEMP(nr) (nr) -#define ADM1021_REG_STATUS 0x02 -/* 0x41 = AD, 0x49 = TI, 0x4D = Maxim, 0x23 = Genesys , 0x54 = Onsemi */ -#define ADM1021_REG_MAN_ID 0xFE -/* ADM1021 = 0x0X, ADM1023 = 0x3X */ -#define ADM1021_REG_DEV_ID 0xFF -/* These use different addresses for reading/writing */ -#define ADM1021_REG_CONFIG_R 0x03 -#define ADM1021_REG_CONFIG_W 0x09 -#define ADM1021_REG_CONV_RATE_R 0x04 -#define ADM1021_REG_CONV_RATE_W 0x0A -/* These are for the ADM1023's additional precision on the remote temp sensor */ -#define ADM1023_REG_REM_TEMP_PREC 0x10 -#define ADM1023_REG_REM_OFFSET 0x11 -#define ADM1023_REG_REM_OFFSET_PREC 0x12 -#define ADM1023_REG_REM_TOS_PREC 0x13 -#define ADM1023_REG_REM_THYST_PREC 0x14 -/* limits */ -/* For nr in 0-1 */ -#define ADM1021_REG_TOS_R(nr) (0x05 + 2 * (nr)) -#define ADM1021_REG_TOS_W(nr) (0x0B + 2 * (nr)) -#define ADM1021_REG_THYST_R(nr) (0x06 + 2 * (nr)) -#define ADM1021_REG_THYST_W(nr) (0x0C + 2 * (nr)) -/* write-only */ -#define ADM1021_REG_ONESHOT 0x0F - -/* Initial values */ - -/* - * Note: Even though I left the low and high limits named os and hyst, - * they don't quite work like a thermostat the way the LM75 does. I.e., - * a lower temp than THYST actually triggers an alarm instead of - * clearing it. Weird, ey? --Phil - */ - -/* Each client has this additional data */ -struct adm1021_data { - struct i2c_client *client; - enum chips type; - - const struct attribute_group *groups[3]; - - struct mutex update_lock; - bool valid; /* true if following fields are valid */ - char low_power; /* !=0 if device in low power mode */ - unsigned long last_updated; /* In jiffies */ - - int temp_max[2]; /* Register values */ - int temp_min[2]; - int temp[2]; - u8 alarms; - /* Special values for ADM1023 only */ - u8 remote_temp_offset; - u8 remote_temp_offset_prec; -}; - -/* (amalysh) read only mode, otherwise any limit's writing confuse BIOS */ -static bool read_only; - -static struct adm1021_data *adm1021_update_device(struct device *dev) -{ - struct adm1021_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - - mutex_lock(&data->update_lock); - - if (time_after(jiffies, data->last_updated + HZ + HZ / 2) - || !data->valid) { - int i; - - dev_dbg(dev, "Starting adm1021 update\n"); - - for (i = 0; i < 2; i++) { - data->temp[i] = 1000 * - (s8) i2c_smbus_read_byte_data( - client, ADM1021_REG_TEMP(i)); - data->temp_max[i] = 1000 * - (s8) i2c_smbus_read_byte_data( - client, ADM1021_REG_TOS_R(i)); - if (data->type != lm84) { - data->temp_min[i] = 1000 * - (s8) i2c_smbus_read_byte_data(client, - ADM1021_REG_THYST_R(i)); - } - } - data->alarms = i2c_smbus_read_byte_data(client, - ADM1021_REG_STATUS) & 0x7c; - if (data->type == adm1023) { - /* - * The ADM1023 provides 3 extra bits of precision for - * the remote sensor in extra registers. - */ - data->temp[1] += 125 * (i2c_smbus_read_byte_data( - client, ADM1023_REG_REM_TEMP_PREC) >> 5); - data->temp_max[1] += 125 * (i2c_smbus_read_byte_data( - client, ADM1023_REG_REM_TOS_PREC) >> 5); - data->temp_min[1] += 125 * (i2c_smbus_read_byte_data( - client, ADM1023_REG_REM_THYST_PREC) >> 5); - data->remote_temp_offset = - i2c_smbus_read_byte_data(client, - ADM1023_REG_REM_OFFSET); - data->remote_temp_offset_prec = - i2c_smbus_read_byte_data(client, - ADM1023_REG_REM_OFFSET_PREC); - } - data->last_updated = jiffies; - data->valid = true; - } - - mutex_unlock(&data->update_lock); - - return data; -} - -static ssize_t temp_show(struct device *dev, struct device_attribute *devattr, - char *buf) -{ - int index = to_sensor_dev_attr(devattr)->index; - struct adm1021_data *data = adm1021_update_device(dev); - - return sprintf(buf, "%d\n", data->temp[index]); -} - -static ssize_t temp_max_show(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - int index = to_sensor_dev_attr(devattr)->index; - struct adm1021_data *data = adm1021_update_device(dev); - - return sprintf(buf, "%d\n", data->temp_max[index]); -} - -static ssize_t temp_min_show(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - int index = to_sensor_dev_attr(devattr)->index; - struct adm1021_data *data = adm1021_update_device(dev); - - return sprintf(buf, "%d\n", data->temp_min[index]); -} - -static ssize_t alarm_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - int index = to_sensor_dev_attr(attr)->index; - struct adm1021_data *data = adm1021_update_device(dev); - return sprintf(buf, "%u\n", (data->alarms >> index) & 1); -} - -static ssize_t alarms_show(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct adm1021_data *data = adm1021_update_device(dev); - return sprintf(buf, "%u\n", data->alarms); -} - -static ssize_t temp_max_store(struct device *dev, - struct device_attribute *devattr, - const char *buf, size_t count) -{ - int index = to_sensor_dev_attr(devattr)->index; - struct adm1021_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - long temp; - int reg_val, err; - - err = kstrtol(buf, 10, &temp); - if (err) - return err; - temp /= 1000; - - mutex_lock(&data->update_lock); - reg_val = clamp_val(temp, -128, 127); - data->temp_max[index] = reg_val * 1000; - if (!read_only) - i2c_smbus_write_byte_data(client, ADM1021_REG_TOS_W(index), - reg_val); - mutex_unlock(&data->update_lock); - - return count; -} - -static ssize_t temp_min_store(struct device *dev, - struct device_attribute *devattr, - const char *buf, size_t count) -{ - int index = to_sensor_dev_attr(devattr)->index; - struct adm1021_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - long temp; - int reg_val, err; - - err = kstrtol(buf, 10, &temp); - if (err) - return err; - temp /= 1000; - - mutex_lock(&data->update_lock); - reg_val = clamp_val(temp, -128, 127); - data->temp_min[index] = reg_val * 1000; - if (!read_only) - i2c_smbus_write_byte_data(client, ADM1021_REG_THYST_W(index), - reg_val); - mutex_unlock(&data->update_lock); - - return count; -} - -static ssize_t low_power_show(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - struct adm1021_data *data = adm1021_update_device(dev); - return sprintf(buf, "%d\n", data->low_power); -} - -static ssize_t low_power_store(struct device *dev, - struct device_attribute *devattr, - const char *buf, size_t count) -{ - struct adm1021_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - char low_power; - unsigned long val; - int err; - - err = kstrtoul(buf, 10, &val); - if (err) - return err; - low_power = val != 0; - - mutex_lock(&data->update_lock); - if (low_power != data->low_power) { - int config = i2c_smbus_read_byte_data( - client, ADM1021_REG_CONFIG_R); - data->low_power = low_power; - i2c_smbus_write_byte_data(client, ADM1021_REG_CONFIG_W, - (config & 0xBF) | (low_power << 6)); - } - mutex_unlock(&data->update_lock); - - return count; -} - - -static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0); -static SENSOR_DEVICE_ATTR_RW(temp1_max, temp_max, 0); -static SENSOR_DEVICE_ATTR_RW(temp1_min, temp_min, 0); -static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1); -static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1); -static SENSOR_DEVICE_ATTR_RW(temp2_min, temp_min, 1); -static SENSOR_DEVICE_ATTR_RO(temp1_max_alarm, alarm, 6); -static SENSOR_DEVICE_ATTR_RO(temp1_min_alarm, alarm, 5); -static SENSOR_DEVICE_ATTR_RO(temp2_max_alarm, alarm, 4); -static SENSOR_DEVICE_ATTR_RO(temp2_min_alarm, alarm, 3); -static SENSOR_DEVICE_ATTR_RO(temp2_fault, alarm, 2); - -static DEVICE_ATTR_RO(alarms); -static DEVICE_ATTR_RW(low_power); - -static struct attribute *adm1021_attributes[] = { - &sensor_dev_attr_temp1_max.dev_attr.attr, - &sensor_dev_attr_temp1_input.dev_attr.attr, - &sensor_dev_attr_temp2_max.dev_attr.attr, - &sensor_dev_attr_temp2_input.dev_attr.attr, - &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_fault.dev_attr.attr, - &dev_attr_alarms.attr, - &dev_attr_low_power.attr, - NULL -}; - -static const struct attribute_group adm1021_group = { - .attrs = adm1021_attributes, -}; - -static struct attribute *adm1021_min_attributes[] = { - &sensor_dev_attr_temp1_min.dev_attr.attr, - &sensor_dev_attr_temp2_min.dev_attr.attr, - &sensor_dev_attr_temp1_min_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_min_alarm.dev_attr.attr, - NULL -}; - -static const struct attribute_group adm1021_min_group = { - .attrs = adm1021_min_attributes, -}; - -/* Return 0 if detection is successful, -ENODEV otherwise */ -static int adm1021_detect(struct i2c_client *client, - struct i2c_board_info *info) -{ - struct i2c_adapter *adapter = client->adapter; - const char *type_name; - int reg, conv_rate, status, config, man_id, dev_id; - - if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { - pr_debug("detect failed, smbus byte data not supported!\n"); - return -ENODEV; - } - - status = i2c_smbus_read_byte_data(client, ADM1021_REG_STATUS); - conv_rate = i2c_smbus_read_byte_data(client, - ADM1021_REG_CONV_RATE_R); - config = i2c_smbus_read_byte_data(client, ADM1021_REG_CONFIG_R); - - /* Check unused bits */ - if ((status & 0x03) || (config & 0x3F) || (conv_rate & 0xF8)) { - pr_debug("detect failed, chip not detected!\n"); - return -ENODEV; - } - - /* Determine the chip type. */ - man_id = i2c_smbus_read_byte_data(client, ADM1021_REG_MAN_ID); - dev_id = i2c_smbus_read_byte_data(client, ADM1021_REG_DEV_ID); - - if (man_id < 0 || dev_id < 0) - return -ENODEV; - - if (man_id == 0x4d && dev_id == 0x01) { - /* - * dev_id 0x01 matches MAX6680, MAX6695, MAX6696, and possibly - * others. Read register which is unsupported on MAX1617 but - * exists on all those chips and compare with the dev_id - * register. If it matches, it may be a MAX1617A. - */ - reg = i2c_smbus_read_byte_data(client, - ADM1023_REG_REM_TEMP_PREC); - if (reg != dev_id) - return -ENODEV; - type_name = "max1617a"; - } else if (man_id == 0x41) { - if ((dev_id & 0xF0) == 0x30) - type_name = "adm1023"; - else if ((dev_id & 0xF0) == 0x00) - type_name = "adm1021"; - else - return -ENODEV; - } else if (man_id == 0x49) - type_name = "thmc10"; - else if (man_id == 0x23) - type_name = "gl523sm"; - else if (man_id == 0x54) - type_name = "mc1066"; - else { - int lte, rte, lhi, rhi, llo, rlo; - - /* extra checks for LM84 and MAX1617 to avoid misdetections */ - - llo = i2c_smbus_read_byte_data(client, ADM1021_REG_THYST_R(0)); - rlo = i2c_smbus_read_byte_data(client, ADM1021_REG_THYST_R(1)); - - /* fail if any of the additional register reads failed */ - if (llo < 0 || rlo < 0) - return -ENODEV; - - lte = i2c_smbus_read_byte_data(client, ADM1021_REG_TEMP(0)); - rte = i2c_smbus_read_byte_data(client, ADM1021_REG_TEMP(1)); - lhi = i2c_smbus_read_byte_data(client, ADM1021_REG_TOS_R(0)); - rhi = i2c_smbus_read_byte_data(client, ADM1021_REG_TOS_R(1)); - - /* - * Fail for negative temperatures and negative high limits. - * This check also catches read errors on the tested registers. - */ - if ((s8)lte < 0 || (s8)rte < 0 || (s8)lhi < 0 || (s8)rhi < 0) - return -ENODEV; - - /* fail if all registers hold the same value */ - if (lte == rte && lte == lhi && lte == rhi && lte == llo - && lte == rlo) - return -ENODEV; - - /* - * LM84 Mfr ID is in a different place, - * and it has more unused bits. Registers at 0xfe and 0xff - * are undefined and return the most recently read value, - * here the value of the configuration register. - */ - if (conv_rate == 0x00 - && man_id == config && dev_id == config - && (config & 0x7F) == 0x00 - && (status & 0xAB) == 0x00) { - type_name = "lm84"; - } else { - if ((config & 0x3f) || (status & 0x03)) - return -ENODEV; - /* fail if low limits are larger than high limits */ - if ((s8)llo > lhi || (s8)rlo > rhi) - return -ENODEV; - type_name = "max1617"; - } - } - - pr_debug("Detected chip %s at adapter %d, address 0x%02x.\n", - type_name, i2c_adapter_id(adapter), client->addr); - strscpy(info->type, type_name, I2C_NAME_SIZE); - - return 0; -} - -static void adm1021_init_client(struct i2c_client *client) -{ - /* Enable ADC and disable suspend mode */ - i2c_smbus_write_byte_data(client, ADM1021_REG_CONFIG_W, - i2c_smbus_read_byte_data(client, ADM1021_REG_CONFIG_R) & 0xBF); - /* Set Conversion rate to 1/sec (this can be tinkered with) */ - i2c_smbus_write_byte_data(client, ADM1021_REG_CONV_RATE_W, 0x04); -} - -static const struct i2c_device_id adm1021_id[]; - -static int adm1021_probe(struct i2c_client *client) -{ - struct device *dev = &client->dev; - struct adm1021_data *data; - struct device *hwmon_dev; - - data = devm_kzalloc(dev, sizeof(struct adm1021_data), GFP_KERNEL); - if (!data) - return -ENOMEM; - - data->client = client; - data->type = i2c_match_id(adm1021_id, client)->driver_data; - mutex_init(&data->update_lock); - - /* Initialize the ADM1021 chip */ - if (data->type != lm84 && !read_only) - adm1021_init_client(client); - - data->groups[0] = &adm1021_group; - if (data->type != lm84) - data->groups[1] = &adm1021_min_group; - - hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, - data, data->groups); - - return PTR_ERR_OR_ZERO(hwmon_dev); -} - -static const struct i2c_device_id adm1021_id[] = { - { "adm1021", adm1021 }, - { "adm1023", adm1023 }, - { "max1617", max1617 }, - { "max1617a", max1617a }, - { "thmc10", thmc10 }, - { "lm84", lm84 }, - { "gl523sm", gl523sm }, - { "mc1066", mc1066 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, adm1021_id); - -static struct i2c_driver adm1021_driver = { - .class = I2C_CLASS_HWMON, - .driver = { - .name = "adm1021", - }, - .probe = adm1021_probe, - .id_table = adm1021_id, - .detect = adm1021_detect, - .address_list = normal_i2c, -}; - -module_i2c_driver(adm1021_driver); - -MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl> and " - "Philip Edelbrock <phil@netroedge.com>"); -MODULE_DESCRIPTION("adm1021 driver"); -MODULE_LICENSE("GPL"); - -module_param(read_only, bool, 0); -MODULE_PARM_DESC(read_only, "Don't set any values, read only mode"); diff --git a/drivers/hwmon/adm1026.c b/drivers/hwmon/adm1026.c index 581d8edf70ea..80d09b017d3b 100644 --- a/drivers/hwmon/adm1026.c +++ b/drivers/hwmon/adm1026.c @@ -1849,7 +1849,7 @@ static int adm1026_probe(struct i2c_client *client) } static const struct i2c_device_id adm1026_id[] = { - { "adm1026", 0 }, + { "adm1026" }, { } }; MODULE_DEVICE_TABLE(i2c, adm1026_id); diff --git a/drivers/hwmon/adm1029.c b/drivers/hwmon/adm1029.c index 9a465f3f71c8..761c13092488 100644 --- a/drivers/hwmon/adm1029.c +++ b/drivers/hwmon/adm1029.c @@ -379,7 +379,7 @@ static int adm1029_probe(struct i2c_client *client) } static const struct i2c_device_id adm1029_id[] = { - { "adm1029", 0 }, + { "adm1029" }, { } }; MODULE_DEVICE_TABLE(i2c, adm1029_id); diff --git a/drivers/hwmon/adm1031.c b/drivers/hwmon/adm1031.c index 88c7e0d62d08..343118532cdb 100644 --- a/drivers/hwmon/adm1031.c +++ b/drivers/hwmon/adm1031.c @@ -1021,8 +1021,6 @@ static void adm1031_init_client(struct i2c_client *client) data->update_interval = update_intervals[i]; } -static const struct i2c_device_id adm1031_id[]; - static int adm1031_probe(struct i2c_client *client) { struct device *dev = &client->dev; @@ -1035,7 +1033,7 @@ static int adm1031_probe(struct i2c_client *client) i2c_set_clientdata(client, data); data->client = client; - data->chip_type = i2c_match_id(adm1031_id, client)->driver_data; + data->chip_type = (uintptr_t)i2c_get_match_data(client); mutex_init(&data->update_lock); if (data->chip_type == adm1030) diff --git a/drivers/hwmon/adm1177.c b/drivers/hwmon/adm1177.c index 3390102d2d4a..8b2c965480e3 100644 --- a/drivers/hwmon/adm1177.c +++ b/drivers/hwmon/adm1177.c @@ -238,7 +238,7 @@ static int adm1177_probe(struct i2c_client *client) } static const struct i2c_device_id adm1177_id[] = { - {"adm1177", 0}, + {"adm1177"}, {} }; MODULE_DEVICE_TABLE(i2c, adm1177_id); diff --git a/drivers/hwmon/ads7828.c b/drivers/hwmon/ads7828.c index 809e830f52a6..436637264056 100644 --- a/drivers/hwmon/ads7828.c +++ b/drivers/hwmon/ads7828.c @@ -99,8 +99,6 @@ static const struct regmap_config ads2830_regmap_config = { .val_bits = 8, }; -static const struct i2c_device_id ads7828_device_ids[]; - static int ads7828_probe(struct i2c_client *client) { struct device *dev = &client->dev; @@ -138,10 +136,7 @@ static int ads7828_probe(struct i2c_client *client) } } - if (client->dev.of_node) - chip = (uintptr_t)of_device_get_match_data(&client->dev); - else - chip = i2c_match_id(ads7828_device_ids, client)->driver_data; + chip = (uintptr_t)i2c_get_match_data(client); /* Bound Vref with min/max values */ vref_mv = clamp_val(vref_mv, ADS7828_EXT_VREF_MV_MIN, diff --git a/drivers/hwmon/adt7310.c b/drivers/hwmon/adt7310.c index 25281739aa3b..6a834a37bc65 100644 --- a/drivers/hwmon/adt7310.c +++ b/drivers/hwmon/adt7310.c @@ -10,7 +10,7 @@ #include <linux/init.h> #include <linux/regmap.h> #include <linux/spi/spi.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "adt7x10.h" diff --git a/drivers/hwmon/adt7410.c b/drivers/hwmon/adt7410.c index d15f64d4b6e7..3bf0e0a0882c 100644 --- a/drivers/hwmon/adt7410.c +++ b/drivers/hwmon/adt7410.c @@ -88,8 +88,8 @@ static int adt7410_i2c_probe(struct i2c_client *client) } static const struct i2c_device_id adt7410_ids[] = { - { "adt7410", 0 }, - { "adt7420", 0 }, + { "adt7410" }, + { "adt7420" }, {} }; MODULE_DEVICE_TABLE(i2c, adt7410_ids); diff --git a/drivers/hwmon/adt7411.c b/drivers/hwmon/adt7411.c index 45fe4e8aae4e..08d0effd97f7 100644 --- a/drivers/hwmon/adt7411.c +++ b/drivers/hwmon/adt7411.c @@ -697,7 +697,7 @@ static int adt7411_probe(struct i2c_client *client) } static const struct i2c_device_id adt7411_id[] = { - { "adt7411", 0 }, + { "adt7411" }, { } }; MODULE_DEVICE_TABLE(i2c, adt7411_id); diff --git a/drivers/hwmon/adt7462.c b/drivers/hwmon/adt7462.c index 429566c4245d..174dfee47f7a 100644 --- a/drivers/hwmon/adt7462.c +++ b/drivers/hwmon/adt7462.c @@ -1809,7 +1809,7 @@ static int adt7462_probe(struct i2c_client *client) } static const struct i2c_device_id adt7462_id[] = { - { "adt7462", 0 }, + { "adt7462" }, { } }; MODULE_DEVICE_TABLE(i2c, adt7462_id); diff --git a/drivers/hwmon/adt7470.c b/drivers/hwmon/adt7470.c index c4b3a4a18670..dbee6926fa05 100644 --- a/drivers/hwmon/adt7470.c +++ b/drivers/hwmon/adt7470.c @@ -728,30 +728,22 @@ static const int adt7470_freq_map[] = { static int pwm1_freq_get(struct device *dev) { struct adt7470_data *data = dev_get_drvdata(dev); - unsigned int cfg_reg_1, cfg_reg_2; + unsigned int regs[2] = {ADT7470_REG_CFG, ADT7470_REG_CFG_2}; + u8 cfg_reg[2]; int index; int err; - mutex_lock(&data->lock); - err = regmap_read(data->regmap, ADT7470_REG_CFG, &cfg_reg_1); - if (err < 0) - goto out; - err = regmap_read(data->regmap, ADT7470_REG_CFG_2, &cfg_reg_2); - if (err < 0) - goto out; - mutex_unlock(&data->lock); + err = regmap_multi_reg_read(data->regmap, regs, cfg_reg, 2); + if (err) + return err; - index = (cfg_reg_2 & ADT7470_FREQ_MASK) >> ADT7470_FREQ_SHIFT; - if (!(cfg_reg_1 & ADT7470_CFG_LF)) + index = (cfg_reg[1] & ADT7470_FREQ_MASK) >> ADT7470_FREQ_SHIFT; + if (!(cfg_reg[0] & ADT7470_CFG_LF)) index += 8; if (index >= ARRAY_SIZE(adt7470_freq_map)) index = ARRAY_SIZE(adt7470_freq_map) - 1; return adt7470_freq_map[index]; - -out: - mutex_unlock(&data->lock); - return err; } static int adt7470_pwm_read(struct device *dev, u32 attr, int channel, long *val) @@ -1304,7 +1296,7 @@ static void adt7470_remove(struct i2c_client *client) } static const struct i2c_device_id adt7470_id[] = { - { "adt7470", 0 }, + { "adt7470" }, { } }; MODULE_DEVICE_TABLE(i2c, adt7470_id); diff --git a/drivers/hwmon/adt7475.c b/drivers/hwmon/adt7475.c index 4224ffb30483..5f2541c11fe9 100644 --- a/drivers/hwmon/adt7475.c +++ b/drivers/hwmon/adt7475.c @@ -21,24 +21,26 @@ #include <linux/of.h> #include <linux/util_macros.h> -/* Indexes for the sysfs hooks */ - -#define INPUT 0 -#define MIN 1 -#define MAX 2 -#define CONTROL 3 -#define OFFSET 3 -#define AUTOMIN 4 -#define THERM 5 -#define HYSTERSIS 6 +#include <dt-bindings/pwm/pwm.h> +/* Indexes for the sysfs hooks */ +enum adt_sysfs_id { + INPUT = 0, + MIN = 1, + MAX = 2, + CONTROL = 3, + OFFSET = 3, // Dup + AUTOMIN = 4, + THERM = 5, + HYSTERSIS = 6, /* * These are unique identifiers for the sysfs functions - unlike the * numbers above, these are not also indexes into an array */ + ALARM = 9, + FAULT = 10, +}; -#define ALARM 9 -#define FAULT 10 /* 7475 Common Registers */ @@ -1662,6 +1664,129 @@ static int adt7475_set_pwm_polarity(struct i2c_client *client) return 0; } +struct adt7475_pwm_config { + int index; + int freq; + int flags; + int duty; +}; + +static int _adt7475_pwm_properties_parse_args(u32 args[4], struct adt7475_pwm_config *cfg) +{ + int freq_hz; + int duty; + + if (args[1] == 0) + return -EINVAL; + + freq_hz = 1000000000UL / args[1]; + if (args[3] >= args[1]) + duty = 255; + else + duty = div_u64(255ULL * args[3], args[1]); + + cfg->index = args[0]; + cfg->freq = find_closest(freq_hz, pwmfreq_table, ARRAY_SIZE(pwmfreq_table)); + cfg->flags = args[2]; + cfg->duty = duty; + + return 0; +} + +static int adt7475_pwm_properties_parse_reference_args(struct fwnode_handle *fwnode, + struct adt7475_pwm_config *cfg) +{ + int ret, i; + struct fwnode_reference_args rargs = {}; + u32 args[4] = {}; + + ret = fwnode_property_get_reference_args(fwnode, "pwms", "#pwm-cells", 0, 0, &rargs); + if (ret) + return ret; + + if (rargs.nargs != 4) { + fwnode_handle_put(rargs.fwnode); + return -EINVAL; + } + + for (i = 0; i < 4; i++) + args[i] = rargs.args[i]; + + ret = _adt7475_pwm_properties_parse_args(args, cfg); + + fwnode_handle_put(rargs.fwnode); + + return ret; +} + +static int adt7475_pwm_properties_parse_args(struct fwnode_handle *fwnode, + struct adt7475_pwm_config *cfg) +{ + int ret; + u32 args[4] = {}; + + ret = fwnode_property_read_u32_array(fwnode, "pwms", args, ARRAY_SIZE(args)); + if (ret) + return ret; + + return _adt7475_pwm_properties_parse_args(args, cfg); +} + +static int adt7475_fan_pwm_config(struct i2c_client *client) +{ + struct adt7475_data *data = i2c_get_clientdata(client); + struct adt7475_pwm_config cfg = {}; + int ret; + + device_for_each_child_node_scoped(&client->dev, child) { + if (!fwnode_property_present(child, "pwms")) + continue; + + if (is_of_node(child)) + ret = adt7475_pwm_properties_parse_reference_args(child, &cfg); + else + ret = adt7475_pwm_properties_parse_args(child, &cfg); + + if (cfg.index >= ADT7475_PWM_COUNT) + return -EINVAL; + + ret = adt7475_read(PWM_CONFIG_REG(cfg.index)); + if (ret < 0) + return ret; + data->pwm[CONTROL][cfg.index] = ret; + if (cfg.flags & PWM_POLARITY_INVERTED) + data->pwm[CONTROL][cfg.index] |= BIT(4); + else + data->pwm[CONTROL][cfg.index] &= ~BIT(4); + + /* Force to manual mode so PWM values take effect */ + data->pwm[CONTROL][cfg.index] &= ~0xE0; + data->pwm[CONTROL][cfg.index] |= 0x07 << 5; + + ret = i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(cfg.index), + data->pwm[CONTROL][cfg.index]); + if (ret) + return ret; + + data->pwm[INPUT][cfg.index] = cfg.duty; + ret = i2c_smbus_write_byte_data(client, PWM_REG(cfg.index), + data->pwm[INPUT][cfg.index]); + if (ret) + return ret; + + data->range[cfg.index] = adt7475_read(TEMP_TRANGE_REG(cfg.index)); + data->range[cfg.index] &= ~0xf; + data->range[cfg.index] |= cfg.freq; + + ret = i2c_smbus_write_byte_data(client, TEMP_TRANGE_REG(cfg.index), + data->range[cfg.index]); + if (ret) + return ret; + } + + return 0; +} + static int adt7475_probe(struct i2c_client *client) { enum chips chip; @@ -1676,7 +1801,6 @@ static int adt7475_probe(struct i2c_client *client) struct device *hwmon_dev; int i, ret = 0, revision, group_num = 0; u8 config3; - const struct i2c_device_id *id = i2c_match_id(adt7475_id, client); data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL); if (data == NULL) @@ -1686,10 +1810,7 @@ static int adt7475_probe(struct i2c_client *client) data->client = client; i2c_set_clientdata(client, data); - if (client->dev.of_node) - chip = (uintptr_t)of_device_get_match_data(&client->dev); - else - chip = id->driver_data; + chip = (uintptr_t)i2c_get_match_data(client); /* Initialize device-specific values */ switch (chip) { @@ -1717,7 +1838,7 @@ static int adt7475_probe(struct i2c_client *client) if (!(config3 & CONFIG3_SMBALERT)) data->has_pwm2 = 1; /* Meaning of this bit is inverted for the ADT7473-1 */ - if (id->driver_data == adt7473 && revision >= 1) + if (chip == adt7473 && revision >= 1) data->has_pwm2 = !data->has_pwm2; data->config4 = adt7475_read(REG_CONFIG4); @@ -1730,12 +1851,12 @@ static int adt7475_probe(struct i2c_client *client) * because 2 different pins (TACH4 and +2.5 Vin) can be used for * this function */ - if (id->driver_data == adt7490) { + if (chip == adt7490) { if ((data->config4 & CONFIG4_PINFUNC) == 0x1 && !(config3 & CONFIG3_THERM)) data->has_fan4 = 1; } - if (id->driver_data == adt7476 || id->driver_data == adt7490) { + if (chip == adt7476 || chip == adt7490) { if (!(config3 & CONFIG3_THERM) || (data->config4 & CONFIG4_PINFUNC) == 0x1) data->has_voltage |= (1 << 0); /* in0 */ @@ -1745,7 +1866,7 @@ static int adt7475_probe(struct i2c_client *client) * On the ADT7476, the +12V input pin may instead be used as VID5, * and VID pins may alternatively be used as GPIO */ - if (id->driver_data == adt7476) { + if (chip == adt7476) { u8 vid = adt7475_read(REG_VID); if (!(vid & VID_VIDSEL)) data->has_voltage |= (1 << 4); /* in4 */ @@ -1778,6 +1899,10 @@ static int adt7475_probe(struct i2c_client *client) if (ret && ret != -EINVAL) dev_warn(&client->dev, "Error configuring pwm polarity\n"); + ret = adt7475_fan_pwm_config(client); + if (ret) + dev_warn(&client->dev, "Error %d configuring fan/pwm\n", ret); + /* Start monitoring */ switch (chip) { case adt7475: @@ -1829,7 +1954,7 @@ static int adt7475_probe(struct i2c_client *client) } dev_info(&client->dev, "%s device, revision %d\n", - names[id->driver_data], revision); + names[chip], revision); if ((data->has_voltage & 0x11) || data->has_fan4 || data->has_pwm2) dev_info(&client->dev, "Optional features:%s%s%s%s%s\n", (data->has_voltage & (1 << 0)) ? " in0" : "", @@ -1900,7 +2025,7 @@ static void adt7475_read_pwm(struct i2c_client *client, int index) data->pwm[CONTROL][index] &= ~0xE0; data->pwm[CONTROL][index] |= (7 << 5); - i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index), + i2c_smbus_write_byte_data(client, PWM_REG(index), data->pwm[INPUT][index]); i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index), diff --git a/drivers/hwmon/adt7x10.c b/drivers/hwmon/adt7x10.c index 6701920de17f..2d329391ed3f 100644 --- a/drivers/hwmon/adt7x10.c +++ b/drivers/hwmon/adt7x10.c @@ -170,21 +170,15 @@ static int adt7x10_temp_write(struct adt7x10_data *data, int index, long temp) static int adt7x10_hyst_read(struct adt7x10_data *data, int index, long *val) { - int hyst, temp, ret; + unsigned int regs[2] = {ADT7X10_T_HYST, ADT7X10_REG_TEMP[index]}; + int hyst, ret; + u16 regdata[2]; - mutex_lock(&data->update_lock); - ret = regmap_read(data->regmap, ADT7X10_T_HYST, &hyst); - if (ret) { - mutex_unlock(&data->update_lock); - return ret; - } - - ret = regmap_read(data->regmap, ADT7X10_REG_TEMP[index], &temp); - mutex_unlock(&data->update_lock); + ret = regmap_multi_reg_read(data->regmap, regs, regdata, 2); if (ret) return ret; - hyst = (hyst & ADT7X10_T_HYST_MASK) * 1000; + hyst = (regdata[0] & ADT7X10_T_HYST_MASK) * 1000; /* * hysteresis is stored as a 4 bit offset in the device, convert it @@ -194,7 +188,7 @@ static int adt7x10_hyst_read(struct adt7x10_data *data, int index, long *val) if (index == adt7x10_t_alarm_low) hyst = -hyst; - *val = ADT7X10_REG_TO_TEMP(data, temp) - hyst; + *val = ADT7X10_REG_TO_TEMP(data, regdata[1]) - hyst; return 0; } diff --git a/drivers/hwmon/aht10.c b/drivers/hwmon/aht10.c index f136bf3ff40a..312ef3e98754 100644 --- a/drivers/hwmon/aht10.c +++ b/drivers/hwmon/aht10.c @@ -331,8 +331,7 @@ static const struct hwmon_chip_info aht10_chip_info = { static int aht10_probe(struct i2c_client *client) { - const struct i2c_device_id *id = i2c_match_id(aht10_id, client); - enum aht10_variant variant = id->driver_data; + enum aht10_variant variant = (uintptr_t)i2c_get_match_data(client); struct device *device = &client->dev; struct device *hwmon_dev; struct aht10_data *data; diff --git a/drivers/hwmon/amc6821.c b/drivers/hwmon/amc6821.c index 9b02b304c2f5..1e3c6acd8974 100644 --- a/drivers/hwmon/amc6821.c +++ b/drivers/hwmon/amc6821.c @@ -6,18 +6,25 @@ * * Based on max6650.c: * Copyright (C) 2007 Hans J. Koch <hjk@hansjkoch.de> + * + * Conversion to regmap and with_info API: + * Copyright (C) 2024 Guenter Roeck <linux@roeck-us.net> */ -#include <linux/kernel.h> /* Needed for KERN_INFO */ -#include <linux/module.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/jiffies.h> -#include <linux/i2c.h> +#include <linux/bitfield.h> +#include <linux/bitops.h> +#include <linux/bits.h> +#include <linux/err.h> #include <linux/hwmon.h> #include <linux/hwmon-sysfs.h> -#include <linux/err.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/minmax.h> +#include <linux/module.h> #include <linux/mutex.h> +#include <linux/of_platform.h> +#include <linux/regmap.h> +#include <linux/slab.h> /* * Addresses to scan. @@ -36,519 +43,590 @@ module_param(pwminv, int, 0444); static int init = 1; /*Power-on initialization.*/ module_param(init, int, 0444); -enum chips { amc6821 }; - -#define AMC6821_REG_DEV_ID 0x3D -#define AMC6821_REG_COMP_ID 0x3E -#define AMC6821_REG_CONF1 0x00 -#define AMC6821_REG_CONF2 0x01 -#define AMC6821_REG_CONF3 0x3F -#define AMC6821_REG_CONF4 0x04 -#define AMC6821_REG_STAT1 0x02 -#define AMC6821_REG_STAT2 0x03 -#define AMC6821_REG_TDATA_LOW 0x08 -#define AMC6821_REG_TDATA_HI 0x09 -#define AMC6821_REG_LTEMP_HI 0x0A -#define AMC6821_REG_RTEMP_HI 0x0B -#define AMC6821_REG_LTEMP_LIMIT_MIN 0x15 -#define AMC6821_REG_LTEMP_LIMIT_MAX 0x14 -#define AMC6821_REG_RTEMP_LIMIT_MIN 0x19 -#define AMC6821_REG_RTEMP_LIMIT_MAX 0x18 -#define AMC6821_REG_LTEMP_CRIT 0x1B -#define AMC6821_REG_RTEMP_CRIT 0x1D -#define AMC6821_REG_PSV_TEMP 0x1C -#define AMC6821_REG_DCY 0x22 -#define AMC6821_REG_LTEMP_FAN_CTRL 0x24 -#define AMC6821_REG_RTEMP_FAN_CTRL 0x25 -#define AMC6821_REG_DCY_LOW_TEMP 0x21 - -#define AMC6821_REG_TACH_LLIMITL 0x10 -#define AMC6821_REG_TACH_LLIMITH 0x11 -#define AMC6821_REG_TACH_HLIMITL 0x12 -#define AMC6821_REG_TACH_HLIMITH 0x13 - -#define AMC6821_CONF1_START 0x01 -#define AMC6821_CONF1_FAN_INT_EN 0x02 -#define AMC6821_CONF1_FANIE 0x04 -#define AMC6821_CONF1_PWMINV 0x08 -#define AMC6821_CONF1_FAN_FAULT_EN 0x10 -#define AMC6821_CONF1_FDRC0 0x20 -#define AMC6821_CONF1_FDRC1 0x40 -#define AMC6821_CONF1_THERMOVIE 0x80 - -#define AMC6821_CONF2_PWM_EN 0x01 -#define AMC6821_CONF2_TACH_MODE 0x02 -#define AMC6821_CONF2_TACH_EN 0x04 -#define AMC6821_CONF2_RTFIE 0x08 -#define AMC6821_CONF2_LTOIE 0x10 -#define AMC6821_CONF2_RTOIE 0x20 -#define AMC6821_CONF2_PSVIE 0x40 -#define AMC6821_CONF2_RST 0x80 - -#define AMC6821_CONF3_THERM_FAN_EN 0x80 -#define AMC6821_CONF3_REV_MASK 0x0F - -#define AMC6821_CONF4_OVREN 0x10 -#define AMC6821_CONF4_TACH_FAST 0x20 -#define AMC6821_CONF4_PSPR 0x40 -#define AMC6821_CONF4_MODE 0x80 - -#define AMC6821_STAT1_RPM_ALARM 0x01 -#define AMC6821_STAT1_FANS 0x02 -#define AMC6821_STAT1_RTH 0x04 -#define AMC6821_STAT1_RTL 0x08 -#define AMC6821_STAT1_R_THERM 0x10 -#define AMC6821_STAT1_RTF 0x20 -#define AMC6821_STAT1_LTH 0x40 -#define AMC6821_STAT1_LTL 0x80 - -#define AMC6821_STAT2_RTC 0x08 -#define AMC6821_STAT2_LTC 0x10 -#define AMC6821_STAT2_LPSV 0x20 -#define AMC6821_STAT2_L_THERM 0x40 -#define AMC6821_STAT2_THERM_IN 0x80 - -enum {IDX_TEMP1_INPUT = 0, IDX_TEMP1_MIN, IDX_TEMP1_MAX, - IDX_TEMP1_CRIT, IDX_TEMP2_INPUT, IDX_TEMP2_MIN, - IDX_TEMP2_MAX, IDX_TEMP2_CRIT, - TEMP_IDX_LEN, }; - -static const u8 temp_reg[] = {AMC6821_REG_LTEMP_HI, - AMC6821_REG_LTEMP_LIMIT_MIN, - AMC6821_REG_LTEMP_LIMIT_MAX, - AMC6821_REG_LTEMP_CRIT, - AMC6821_REG_RTEMP_HI, - AMC6821_REG_RTEMP_LIMIT_MIN, - AMC6821_REG_RTEMP_LIMIT_MAX, - AMC6821_REG_RTEMP_CRIT, }; - -enum {IDX_FAN1_INPUT = 0, IDX_FAN1_MIN, IDX_FAN1_MAX, - FAN1_IDX_LEN, }; - -static const u8 fan_reg_low[] = {AMC6821_REG_TDATA_LOW, - AMC6821_REG_TACH_LLIMITL, - AMC6821_REG_TACH_HLIMITL, }; - - -static const u8 fan_reg_hi[] = {AMC6821_REG_TDATA_HI, - AMC6821_REG_TACH_LLIMITH, - AMC6821_REG_TACH_HLIMITH, }; +#define AMC6821_REG_DEV_ID 0x3D +#define AMC6821_REG_COMP_ID 0x3E +#define AMC6821_REG_CONF1 0x00 +#define AMC6821_REG_CONF2 0x01 +#define AMC6821_REG_CONF3 0x3F +#define AMC6821_REG_CONF4 0x04 +#define AMC6821_REG_STAT1 0x02 +#define AMC6821_REG_STAT2 0x03 +#define AMC6821_REG_TEMP_LO 0x06 +#define AMC6821_REG_TDATA_LOW 0x08 +#define AMC6821_REG_TDATA_HI 0x09 +#define AMC6821_REG_LTEMP_HI 0x0A +#define AMC6821_REG_RTEMP_HI 0x0B +#define AMC6821_REG_LTEMP_LIMIT_MIN 0x15 +#define AMC6821_REG_LTEMP_LIMIT_MAX 0x14 +#define AMC6821_REG_RTEMP_LIMIT_MIN 0x19 +#define AMC6821_REG_RTEMP_LIMIT_MAX 0x18 +#define AMC6821_REG_LTEMP_CRIT 0x1B +#define AMC6821_REG_RTEMP_CRIT 0x1D +#define AMC6821_REG_PSV_TEMP 0x1C +#define AMC6821_REG_DCY 0x22 +#define AMC6821_REG_LTEMP_FAN_CTRL 0x24 +#define AMC6821_REG_RTEMP_FAN_CTRL 0x25 +#define AMC6821_REG_DCY_LOW_TEMP 0x21 + +#define AMC6821_REG_TACH_LLIMITL 0x10 +#define AMC6821_REG_TACH_HLIMITL 0x12 +#define AMC6821_REG_TACH_SETTINGL 0x1e + +#define AMC6821_CONF1_START BIT(0) +#define AMC6821_CONF1_FAN_INT_EN BIT(1) +#define AMC6821_CONF1_FANIE BIT(2) +#define AMC6821_CONF1_PWMINV BIT(3) +#define AMC6821_CONF1_FAN_FAULT_EN BIT(4) +#define AMC6821_CONF1_FDRC0 BIT(5) +#define AMC6821_CONF1_FDRC1 BIT(6) +#define AMC6821_CONF1_THERMOVIE BIT(7) + +#define AMC6821_CONF2_PWM_EN BIT(0) +#define AMC6821_CONF2_TACH_MODE BIT(1) +#define AMC6821_CONF2_TACH_EN BIT(2) +#define AMC6821_CONF2_RTFIE BIT(3) +#define AMC6821_CONF2_LTOIE BIT(4) +#define AMC6821_CONF2_RTOIE BIT(5) +#define AMC6821_CONF2_PSVIE BIT(6) +#define AMC6821_CONF2_RST BIT(7) + +#define AMC6821_CONF3_THERM_FAN_EN BIT(7) +#define AMC6821_CONF3_REV_MASK GENMASK(3, 0) + +#define AMC6821_CONF4_OVREN BIT(4) +#define AMC6821_CONF4_TACH_FAST BIT(5) +#define AMC6821_CONF4_PSPR BIT(6) +#define AMC6821_CONF4_MODE BIT(7) + +#define AMC6821_STAT1_RPM_ALARM BIT(0) +#define AMC6821_STAT1_FANS BIT(1) +#define AMC6821_STAT1_RTH BIT(2) +#define AMC6821_STAT1_RTL BIT(3) +#define AMC6821_STAT1_R_THERM BIT(4) +#define AMC6821_STAT1_RTF BIT(5) +#define AMC6821_STAT1_LTH BIT(6) +#define AMC6821_STAT1_LTL BIT(7) + +#define AMC6821_STAT2_RTC BIT(3) +#define AMC6821_STAT2_LTC BIT(4) +#define AMC6821_STAT2_LPSV BIT(5) +#define AMC6821_STAT2_L_THERM BIT(6) +#define AMC6821_STAT2_THERM_IN BIT(7) + +#define AMC6821_TEMP_SLOPE_MASK GENMASK(2, 0) +#define AMC6821_TEMP_LIMIT_MASK GENMASK(7, 3) /* * Client data (each client gets its own) */ struct amc6821_data { - struct i2c_client *client; + struct regmap *regmap; struct mutex update_lock; - bool valid; /* false until following fields are valid */ - unsigned long last_updated; /* in jiffies */ +}; - /* register values */ - int temp[TEMP_IDX_LEN]; +/* + * Return 0 on success or negative error code. + * + * temps returns set of three temperatures, in °C: + * temps[0]: Passive cooling temperature, applies to both channels + * temps[1]: Low temperature, start slope calculations + * temps[2]: High temperature + * + * Channel 0: local, channel 1: remote. + */ +static int amc6821_get_auto_point_temps(struct regmap *regmap, int channel, u8 *temps) +{ + u32 regs[] = { + AMC6821_REG_DCY_LOW_TEMP, + AMC6821_REG_PSV_TEMP, + channel ? AMC6821_REG_RTEMP_FAN_CTRL : AMC6821_REG_LTEMP_FAN_CTRL + }; + u8 regvals[3]; + int slope; + int err; - u16 fan[FAN1_IDX_LEN]; - u8 fan1_div; + err = regmap_multi_reg_read(regmap, regs, regvals, 3); + if (err) + return err; + temps[0] = regvals[1]; + temps[1] = FIELD_GET(AMC6821_TEMP_LIMIT_MASK, regvals[2]) * 4; - u8 pwm1; - u8 temp1_auto_point_temp[3]; - u8 temp2_auto_point_temp[3]; - u8 pwm1_auto_point_pwm[3]; - u8 pwm1_enable; - u8 pwm1_auto_channels_temp; + /* slope is 32 >> <slope bits> in °C */ + slope = 32 >> FIELD_GET(AMC6821_TEMP_SLOPE_MASK, regvals[2]); + if (slope) + temps[2] = temps[1] + DIV_ROUND_CLOSEST(255 - regvals[0], slope); + else + temps[2] = 255; - u8 stat1; - u8 stat2; -}; + return 0; +} -static struct amc6821_data *amc6821_update_device(struct device *dev) +static int amc6821_temp_read_values(struct regmap *regmap, u32 attr, int channel, long *val) { - struct amc6821_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - int timeout = HZ; - u8 reg; - int i; + int reg, err; + u32 regval; - mutex_lock(&data->update_lock); + switch (attr) { + case hwmon_temp_input: + reg = channel ? AMC6821_REG_RTEMP_HI : AMC6821_REG_LTEMP_HI; + break; + case hwmon_temp_min: + reg = channel ? AMC6821_REG_RTEMP_LIMIT_MIN : AMC6821_REG_LTEMP_LIMIT_MIN; + break; + case hwmon_temp_max: + reg = channel ? AMC6821_REG_RTEMP_LIMIT_MAX : AMC6821_REG_LTEMP_LIMIT_MAX; + break; + case hwmon_temp_crit: + reg = channel ? AMC6821_REG_RTEMP_CRIT : AMC6821_REG_LTEMP_CRIT; + break; + default: + return -EOPNOTSUPP; + } + err = regmap_read(regmap, reg, ®val); + if (err) + return err; + *val = sign_extend32(regval, 7) * 1000; + return 0; +} - if (time_after(jiffies, data->last_updated + timeout) || - !data->valid) { - - for (i = 0; i < TEMP_IDX_LEN; i++) - data->temp[i] = (int8_t)i2c_smbus_read_byte_data( - client, temp_reg[i]); - - data->stat1 = i2c_smbus_read_byte_data(client, - AMC6821_REG_STAT1); - data->stat2 = i2c_smbus_read_byte_data(client, - AMC6821_REG_STAT2); - - data->pwm1 = i2c_smbus_read_byte_data(client, - AMC6821_REG_DCY); - for (i = 0; i < FAN1_IDX_LEN; i++) { - data->fan[i] = i2c_smbus_read_byte_data( - client, - fan_reg_low[i]); - data->fan[i] += i2c_smbus_read_byte_data( - client, - fan_reg_hi[i]) << 8; - } - data->fan1_div = i2c_smbus_read_byte_data(client, - AMC6821_REG_CONF4); - data->fan1_div = data->fan1_div & AMC6821_CONF4_PSPR ? 4 : 2; - - data->pwm1_auto_point_pwm[0] = 0; - data->pwm1_auto_point_pwm[2] = 255; - data->pwm1_auto_point_pwm[1] = i2c_smbus_read_byte_data(client, - AMC6821_REG_DCY_LOW_TEMP); - - data->temp1_auto_point_temp[0] = - i2c_smbus_read_byte_data(client, - AMC6821_REG_PSV_TEMP); - data->temp2_auto_point_temp[0] = - data->temp1_auto_point_temp[0]; - reg = i2c_smbus_read_byte_data(client, - AMC6821_REG_LTEMP_FAN_CTRL); - data->temp1_auto_point_temp[1] = (reg & 0xF8) >> 1; - reg &= 0x07; - reg = 0x20 >> reg; - if (reg > 0) - data->temp1_auto_point_temp[2] = - data->temp1_auto_point_temp[1] + - (data->pwm1_auto_point_pwm[2] - - data->pwm1_auto_point_pwm[1]) / reg; - else - data->temp1_auto_point_temp[2] = 255; - - reg = i2c_smbus_read_byte_data(client, - AMC6821_REG_RTEMP_FAN_CTRL); - data->temp2_auto_point_temp[1] = (reg & 0xF8) >> 1; - reg &= 0x07; - reg = 0x20 >> reg; - if (reg > 0) - data->temp2_auto_point_temp[2] = - data->temp2_auto_point_temp[1] + - (data->pwm1_auto_point_pwm[2] - - data->pwm1_auto_point_pwm[1]) / reg; - else - data->temp2_auto_point_temp[2] = 255; - - reg = i2c_smbus_read_byte_data(client, AMC6821_REG_CONF1); - reg = (reg >> 5) & 0x3; - switch (reg) { - case 0: /*open loop: software sets pwm1*/ - data->pwm1_auto_channels_temp = 0; - data->pwm1_enable = 1; +static int amc6821_read_alarms(struct regmap *regmap, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + int reg, mask, err; + u32 regval; + + switch (type) { + case hwmon_temp: + switch (attr) { + case hwmon_temp_min_alarm: + reg = AMC6821_REG_STAT1; + mask = channel ? AMC6821_STAT1_RTL : AMC6821_STAT1_LTL; break; - case 2: /*closed loop: remote T (temp2)*/ - data->pwm1_auto_channels_temp = 2; - data->pwm1_enable = 2; + case hwmon_temp_max_alarm: + reg = AMC6821_REG_STAT1; + mask = channel ? AMC6821_STAT1_RTH : AMC6821_STAT1_LTH; break; - case 3: /*closed loop: local and remote T (temp2)*/ - data->pwm1_auto_channels_temp = 3; - data->pwm1_enable = 3; + case hwmon_temp_crit_alarm: + reg = AMC6821_REG_STAT2; + mask = channel ? AMC6821_STAT2_RTC : AMC6821_STAT2_LTC; break; - case 1: /* - * semi-open loop: software sets rpm, chip controls - * pwm1, currently not implemented - */ - data->pwm1_auto_channels_temp = 0; - data->pwm1_enable = 0; + case hwmon_temp_fault: + reg = AMC6821_REG_STAT1; + mask = AMC6821_STAT1_RTF; break; + default: + return -EOPNOTSUPP; } - - data->last_updated = jiffies; - data->valid = true; + break; + case hwmon_fan: + switch (attr) { + case hwmon_fan_fault: + reg = AMC6821_REG_STAT1; + mask = AMC6821_STAT1_FANS; + break; + default: + return -EOPNOTSUPP; + } + break; + default: + return -EOPNOTSUPP; } - mutex_unlock(&data->update_lock); - return data; + err = regmap_read(regmap, reg, ®val); + if (err) + return err; + *val = !!(regval & mask); + return 0; } -static ssize_t temp_show(struct device *dev, struct device_attribute *devattr, - char *buf) +static int amc6821_temp_read(struct device *dev, u32 attr, int channel, long *val) { - struct amc6821_data *data = amc6821_update_device(dev); - int ix = to_sensor_dev_attr(devattr)->index; + struct amc6821_data *data = dev_get_drvdata(dev); - return sprintf(buf, "%d\n", data->temp[ix] * 1000); + switch (attr) { + case hwmon_temp_input: + case hwmon_temp_min: + case hwmon_temp_max: + case hwmon_temp_crit: + return amc6821_temp_read_values(data->regmap, attr, channel, val); + case hwmon_temp_min_alarm: + case hwmon_temp_max_alarm: + case hwmon_temp_crit_alarm: + case hwmon_temp_fault: + return amc6821_read_alarms(data->regmap, hwmon_temp, attr, channel, val); + default: + return -EOPNOTSUPP; + } } -static ssize_t temp_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +static int amc6821_temp_write(struct device *dev, u32 attr, int channel, long val) { struct amc6821_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - int ix = to_sensor_dev_attr(attr)->index; - long val; + int reg; - int ret = kstrtol(buf, 10, &val); - if (ret) - return ret; - val = clamp_val(val / 1000, -128, 127); + val = DIV_ROUND_CLOSEST(clamp_val(val, -128000, 127000), 1000); - mutex_lock(&data->update_lock); - data->temp[ix] = val; - if (i2c_smbus_write_byte_data(client, temp_reg[ix], data->temp[ix])) { - dev_err(&client->dev, "Register write error, aborting.\n"); - count = -EIO; + switch (attr) { + case hwmon_temp_min: + reg = channel ? AMC6821_REG_RTEMP_LIMIT_MIN : AMC6821_REG_LTEMP_LIMIT_MIN; + break; + case hwmon_temp_max: + reg = channel ? AMC6821_REG_RTEMP_LIMIT_MAX : AMC6821_REG_LTEMP_LIMIT_MAX; + break; + case hwmon_temp_crit: + reg = channel ? AMC6821_REG_RTEMP_CRIT : AMC6821_REG_LTEMP_CRIT; + break; + default: + return -EOPNOTSUPP; } - mutex_unlock(&data->update_lock); - return count; + return regmap_write(data->regmap, reg, val); } -static ssize_t temp_alarm_show(struct device *dev, - struct device_attribute *devattr, char *buf) +static int amc6821_pwm_read(struct device *dev, u32 attr, long *val) { - struct amc6821_data *data = amc6821_update_device(dev); - int ix = to_sensor_dev_attr(devattr)->index; - u8 flag; + struct amc6821_data *data = dev_get_drvdata(dev); + struct regmap *regmap = data->regmap; + u32 regval; + int err; - switch (ix) { - case IDX_TEMP1_MIN: - flag = data->stat1 & AMC6821_STAT1_LTL; - break; - case IDX_TEMP1_MAX: - flag = data->stat1 & AMC6821_STAT1_LTH; + switch (attr) { + case hwmon_pwm_enable: + err = regmap_read(regmap, AMC6821_REG_CONF1, ®val); + if (err) + return err; + switch (regval & (AMC6821_CONF1_FDRC0 | AMC6821_CONF1_FDRC1)) { + case 0: + *val = 1; /* manual */ + break; + case AMC6821_CONF1_FDRC0: + *val = 4; /* target rpm (fan1_target) controlled */ + break; + case AMC6821_CONF1_FDRC1: + *val = 2; /* remote temp controlled */ + break; + default: + *val = 3; /* max(local, remote) temp controlled */ + break; + } + return 0; + case hwmon_pwm_mode: + err = regmap_read(regmap, AMC6821_REG_CONF2, ®val); + if (err) + return err; + *val = !!(regval & AMC6821_CONF2_TACH_MODE); + return 0; + case hwmon_pwm_auto_channels_temp: + err = regmap_read(regmap, AMC6821_REG_CONF1, ®val); + if (err) + return err; + switch (regval & (AMC6821_CONF1_FDRC0 | AMC6821_CONF1_FDRC1)) { + case 0: + case AMC6821_CONF1_FDRC0: + *val = 0; /* manual or target rpm controlled */ + break; + case AMC6821_CONF1_FDRC1: + *val = 2; /* remote temp controlled */ + break; + default: + *val = 3; /* max(local, remote) temp controlled */ + break; + } + return 0; + case hwmon_pwm_input: + err = regmap_read(regmap, AMC6821_REG_DCY, ®val); + if (err) + return err; + *val = regval; + return 0; + default: + return -EOPNOTSUPP; + } +} + +static int amc6821_pwm_write(struct device *dev, u32 attr, long val) +{ + struct amc6821_data *data = dev_get_drvdata(dev); + struct regmap *regmap = data->regmap; + u32 mode; + + switch (attr) { + case hwmon_pwm_enable: + switch (val) { + case 1: + mode = 0; + break; + case 2: + mode = AMC6821_CONF1_FDRC1; + break; + case 3: + mode = AMC6821_CONF1_FDRC0 | AMC6821_CONF1_FDRC1; + break; + case 4: + mode = AMC6821_CONF1_FDRC0; + break; + default: + return -EINVAL; + } + return regmap_update_bits(regmap, AMC6821_REG_CONF1, + AMC6821_CONF1_FDRC0 | AMC6821_CONF1_FDRC1, + mode); + case hwmon_pwm_mode: + if (val < 0 || val > 1) + return -EINVAL; + return regmap_update_bits(regmap, AMC6821_REG_CONF2, + AMC6821_CONF2_TACH_MODE, + val ? AMC6821_CONF2_TACH_MODE : 0); break; - case IDX_TEMP1_CRIT: - flag = data->stat2 & AMC6821_STAT2_LTC; + case hwmon_pwm_input: + if (val < 0 || val > 255) + return -EINVAL; + return regmap_write(regmap, AMC6821_REG_DCY, val); + default: + return -EOPNOTSUPP; + } +} + +static int amc6821_fan_read_rpm(struct regmap *regmap, u32 attr, long *val) +{ + int reg, err; + u8 regs[2]; + u32 regval; + + switch (attr) { + case hwmon_fan_input: + reg = AMC6821_REG_TDATA_LOW; break; - case IDX_TEMP2_MIN: - flag = data->stat1 & AMC6821_STAT1_RTL; + case hwmon_fan_min: + reg = AMC6821_REG_TACH_LLIMITL; break; - case IDX_TEMP2_MAX: - flag = data->stat1 & AMC6821_STAT1_RTH; + case hwmon_fan_max: + reg = AMC6821_REG_TACH_HLIMITL; break; - case IDX_TEMP2_CRIT: - flag = data->stat2 & AMC6821_STAT2_RTC; + case hwmon_fan_target: + reg = AMC6821_REG_TACH_SETTINGL; break; default: - dev_dbg(dev, "Unknown attr->index (%d).\n", ix); - return -EINVAL; + return -EOPNOTSUPP; } - if (flag) - return sprintf(buf, "1"); - else - return sprintf(buf, "0"); -} -static ssize_t temp2_fault_show(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - struct amc6821_data *data = amc6821_update_device(dev); - if (data->stat1 & AMC6821_STAT1_RTF) - return sprintf(buf, "1"); - else - return sprintf(buf, "0"); -} + err = regmap_bulk_read(regmap, reg, regs, 2); + if (err) + return err; -static ssize_t pwm1_show(struct device *dev, struct device_attribute *devattr, - char *buf) -{ - struct amc6821_data *data = amc6821_update_device(dev); - return sprintf(buf, "%d\n", data->pwm1); + regval = (regs[1] << 8) | regs[0]; + *val = regval ? 6000000 / regval : 0; + + return 0; } -static ssize_t pwm1_store(struct device *dev, - struct device_attribute *devattr, const char *buf, - size_t count) +static int amc6821_fan_read(struct device *dev, u32 attr, long *val) { struct amc6821_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - long val; - int ret = kstrtol(buf, 10, &val); - if (ret) - return ret; - - mutex_lock(&data->update_lock); - data->pwm1 = clamp_val(val , 0, 255); - i2c_smbus_write_byte_data(client, AMC6821_REG_DCY, data->pwm1); - mutex_unlock(&data->update_lock); - return count; -} + struct regmap *regmap = data->regmap; + u32 regval; + int err; -static ssize_t pwm1_enable_show(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - struct amc6821_data *data = amc6821_update_device(dev); - return sprintf(buf, "%d\n", data->pwm1_enable); + switch (attr) { + case hwmon_fan_input: + case hwmon_fan_min: + case hwmon_fan_max: + case hwmon_fan_target: + return amc6821_fan_read_rpm(regmap, attr, val); + case hwmon_fan_fault: + return amc6821_read_alarms(regmap, hwmon_fan, attr, 0, val); + case hwmon_fan_pulses: + err = regmap_read(regmap, AMC6821_REG_CONF4, ®val); + if (err) + return err; + *val = (regval & AMC6821_CONF4_PSPR) ? 4 : 2; + return 0; + default: + return -EOPNOTSUPP; + } } -static ssize_t pwm1_enable_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) +static int amc6821_fan_write(struct device *dev, u32 attr, long val) { struct amc6821_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - long val; - int config = kstrtol(buf, 10, &val); - if (config) - return config; - - mutex_lock(&data->update_lock); - config = i2c_smbus_read_byte_data(client, AMC6821_REG_CONF1); - if (config < 0) { - dev_err(&client->dev, - "Error reading configuration register, aborting.\n"); - count = config; - goto unlock; + struct regmap *regmap = data->regmap; + u8 regs[2]; + int reg; + + if (attr == hwmon_fan_pulses) { + if (val != 2 && val != 4) + return -EINVAL; + return regmap_update_bits(regmap, AMC6821_REG_CONF4, + AMC6821_CONF4_PSPR, + val == 4 ? AMC6821_CONF4_PSPR : 0); } - switch (val) { - case 1: - config &= ~AMC6821_CONF1_FDRC0; - config &= ~AMC6821_CONF1_FDRC1; + if (val < 0) + return -EINVAL; + + switch (attr) { + case hwmon_fan_min: + if (!val) /* no unlimited minimum speed */ + return -EINVAL; + reg = AMC6821_REG_TACH_LLIMITL; break; - case 2: - config &= ~AMC6821_CONF1_FDRC0; - config |= AMC6821_CONF1_FDRC1; + case hwmon_fan_max: + reg = AMC6821_REG_TACH_HLIMITL; break; - case 3: - config |= AMC6821_CONF1_FDRC0; - config |= AMC6821_CONF1_FDRC1; + case hwmon_fan_target: + if (!val) /* no unlimited target speed */ + return -EINVAL; + reg = AMC6821_REG_TACH_SETTINGL; break; default: - count = -EINVAL; - goto unlock; - } - if (i2c_smbus_write_byte_data(client, AMC6821_REG_CONF1, config)) { - dev_err(&client->dev, - "Configuration register write error, aborting.\n"); - count = -EIO; + return -EOPNOTSUPP; } -unlock: - mutex_unlock(&data->update_lock); - return count; -} -static ssize_t pwm1_auto_channels_temp_show(struct device *dev, - struct device_attribute *devattr, - char *buf) -{ - struct amc6821_data *data = amc6821_update_device(dev); - return sprintf(buf, "%d\n", data->pwm1_auto_channels_temp); + val = val ? 6000000 / clamp_val(val, 1, 6000000) : 0; + val = clamp_val(val, 0, 0xffff); + + regs[0] = val & 0xff; + regs[1] = val >> 8; + + return regmap_bulk_write(data->regmap, reg, regs, 2); } static ssize_t temp_auto_point_temp_show(struct device *dev, struct device_attribute *devattr, char *buf) { + struct amc6821_data *data = dev_get_drvdata(dev); int ix = to_sensor_dev_attr_2(devattr)->index; int nr = to_sensor_dev_attr_2(devattr)->nr; - struct amc6821_data *data = amc6821_update_device(dev); - switch (nr) { - case 1: - return sprintf(buf, "%d\n", - data->temp1_auto_point_temp[ix] * 1000); - case 2: - return sprintf(buf, "%d\n", - data->temp2_auto_point_temp[ix] * 1000); - default: - dev_dbg(dev, "Unknown attr->nr (%d).\n", nr); - return -EINVAL; - } + u8 temps[3]; + int err; + + mutex_lock(&data->update_lock); + err = amc6821_get_auto_point_temps(data->regmap, nr, temps); + mutex_unlock(&data->update_lock); + if (err) + return err; + + return sysfs_emit(buf, "%d\n", temps[ix] * 1000); } static ssize_t pwm1_auto_point_pwm_show(struct device *dev, struct device_attribute *devattr, char *buf) { + struct amc6821_data *data = dev_get_drvdata(dev); int ix = to_sensor_dev_attr(devattr)->index; - struct amc6821_data *data = amc6821_update_device(dev); - return sprintf(buf, "%d\n", data->pwm1_auto_point_pwm[ix]); + u32 val; + int err; + + switch (ix) { + case 0: + val = 0; + break; + case 1: + err = regmap_read(data->regmap, AMC6821_REG_DCY_LOW_TEMP, &val); + if (err) + return err; + break; + default: + val = 255; + break; + } + return sysfs_emit(buf, "%d\n", val); } -static inline ssize_t set_slope_register(struct i2c_client *client, - u8 reg, - u8 dpwm, - u8 *ptemp) +/* + * Set TEMP[0-4] (low temperature) and SLP[0-2] (slope) of local or remote + * TEMP-FAN control register. + * + * Return 0 on success or negative error code. + * + * Channel 0: local, channel 1: remote + */ +static inline int set_slope_register(struct regmap *regmap, int channel, u8 *temps) { - int dt; - u8 tmp; + u8 regval = FIELD_PREP(AMC6821_TEMP_LIMIT_MASK, temps[1] / 4); + u8 tmp, dpwm; + int err, dt; + u32 pwm; + + err = regmap_read(regmap, AMC6821_REG_DCY_LOW_TEMP, &pwm); + if (err) + return err; - dt = ptemp[2]-ptemp[1]; + dpwm = 255 - pwm; + + dt = temps[2] - temps[1]; for (tmp = 4; tmp > 0; tmp--) { - if (dt * (0x20 >> tmp) >= dpwm) + if (dt * (32 >> tmp) >= dpwm) break; } - tmp |= (ptemp[1] & 0x7C) << 1; - if (i2c_smbus_write_byte_data(client, - reg, tmp)) { - dev_err(&client->dev, "Register write error, aborting.\n"); - return -EIO; - } - return 0; + regval |= FIELD_PREP(AMC6821_TEMP_SLOPE_MASK, tmp); + + return regmap_write(regmap, + channel ? AMC6821_REG_RTEMP_FAN_CTRL : AMC6821_REG_LTEMP_FAN_CTRL, + regval); } static ssize_t temp_auto_point_temp_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct amc6821_data *data = amc6821_update_device(dev); - struct i2c_client *client = data->client; + struct amc6821_data *data = dev_get_drvdata(dev); int ix = to_sensor_dev_attr_2(attr)->index; int nr = to_sensor_dev_attr_2(attr)->nr; - u8 *ptemp; - u8 reg; - int dpwm; + struct regmap *regmap = data->regmap; + u8 temps[3], otemps[3]; long val; - int ret = kstrtol(buf, 10, &val); + int ret; + + ret = kstrtol(buf, 10, &val); if (ret) return ret; - switch (nr) { - case 1: - ptemp = data->temp1_auto_point_temp; - reg = AMC6821_REG_LTEMP_FAN_CTRL; - break; - case 2: - ptemp = data->temp2_auto_point_temp; - reg = AMC6821_REG_RTEMP_FAN_CTRL; - break; - default: - dev_dbg(dev, "Unknown attr->nr (%d).\n", nr); - return -EINVAL; - } - mutex_lock(&data->update_lock); - data->valid = false; + + ret = amc6821_get_auto_point_temps(data->regmap, nr, temps); + if (ret) + goto unlock; switch (ix) { case 0: - ptemp[0] = clamp_val(val / 1000, 0, - data->temp1_auto_point_temp[1]); - ptemp[0] = clamp_val(ptemp[0], 0, - data->temp2_auto_point_temp[1]); - ptemp[0] = clamp_val(ptemp[0], 0, 63); - if (i2c_smbus_write_byte_data( - client, - AMC6821_REG_PSV_TEMP, - ptemp[0])) { - dev_err(&client->dev, - "Register write error, aborting.\n"); - count = -EIO; - } - goto EXIT; + /* + * Passive cooling temperature. Range limit against low limit + * of both channels. + */ + ret = amc6821_get_auto_point_temps(data->regmap, 1 - nr, otemps); + if (ret) + goto unlock; + val = DIV_ROUND_CLOSEST(clamp_val(val, 0, 63000), 1000); + val = clamp_val(val, 0, min(temps[1], otemps[1])); + ret = regmap_write(regmap, AMC6821_REG_PSV_TEMP, val); + break; case 1: - ptemp[1] = clamp_val(val / 1000, (ptemp[0] & 0x7C) + 4, 124); - ptemp[1] &= 0x7C; - ptemp[2] = clamp_val(ptemp[2], ptemp[1] + 1, 255); + /* + * Low limit; must be between passive and high limit, + * and not exceed 124. Step size is 4 degrees C. + */ + val = clamp_val(val, DIV_ROUND_UP(temps[0], 4) * 4000, 124000); + temps[1] = DIV_ROUND_CLOSEST(val, 4000) * 4; + val = temps[1] / 4; + /* Auto-adjust high limit if necessary */ + temps[2] = clamp_val(temps[2], temps[1] + 1, 255); + ret = set_slope_register(regmap, nr, temps); break; case 2: - ptemp[2] = clamp_val(val / 1000, ptemp[1]+1, 255); + /* high limit, must be higher than low limit */ + val = clamp_val(val, (temps[1] + 1) * 1000, 255000); + temps[2] = DIV_ROUND_CLOSEST(val, 1000); + ret = set_slope_register(regmap, nr, temps); break; default: - dev_dbg(dev, "Unknown attr->index (%d).\n", ix); - count = -EINVAL; - goto EXIT; + ret = -EINVAL; + break; } - dpwm = data->pwm1_auto_point_pwm[2] - data->pwm1_auto_point_pwm[1]; - if (set_slope_register(client, reg, dpwm, ptemp)) - count = -EIO; - -EXIT: +unlock: mutex_unlock(&data->update_lock); - return count; + return ret ? : count; } static ssize_t pwm1_auto_point_pwm_store(struct device *dev, @@ -556,204 +634,52 @@ static ssize_t pwm1_auto_point_pwm_store(struct device *dev, const char *buf, size_t count) { struct amc6821_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - int dpwm; - long val; - int ret = kstrtol(buf, 10, &val); - if (ret) - return ret; - - mutex_lock(&data->update_lock); - data->pwm1_auto_point_pwm[1] = clamp_val(val, 0, 254); - if (i2c_smbus_write_byte_data(client, AMC6821_REG_DCY_LOW_TEMP, - data->pwm1_auto_point_pwm[1])) { - dev_err(&client->dev, "Register write error, aborting.\n"); - count = -EIO; - goto EXIT; - } - dpwm = data->pwm1_auto_point_pwm[2] - data->pwm1_auto_point_pwm[1]; - if (set_slope_register(client, AMC6821_REG_LTEMP_FAN_CTRL, dpwm, - data->temp1_auto_point_temp)) { - count = -EIO; - goto EXIT; - } - if (set_slope_register(client, AMC6821_REG_RTEMP_FAN_CTRL, dpwm, - data->temp2_auto_point_temp)) { - count = -EIO; - goto EXIT; - } - -EXIT: - data->valid = false; - mutex_unlock(&data->update_lock); - return count; -} - -static ssize_t fan_show(struct device *dev, struct device_attribute *devattr, - char *buf) -{ - struct amc6821_data *data = amc6821_update_device(dev); - int ix = to_sensor_dev_attr(devattr)->index; - if (0 == data->fan[ix]) - return sprintf(buf, "0"); - return sprintf(buf, "%d\n", (int)(6000000 / data->fan[ix])); -} - -static ssize_t fan1_fault_show(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - struct amc6821_data *data = amc6821_update_device(dev); - if (data->stat1 & AMC6821_STAT1_FANS) - return sprintf(buf, "1"); - else - return sprintf(buf, "0"); -} + struct regmap *regmap = data->regmap; + int i, ret; + u8 val; -static ssize_t fan_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - struct amc6821_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - long val; - int ix = to_sensor_dev_attr(attr)->index; - int ret = kstrtol(buf, 10, &val); + ret = kstrtou8(buf, 10, &val); if (ret) return ret; - val = 1 > val ? 0xFFFF : 6000000/val; mutex_lock(&data->update_lock); - data->fan[ix] = (u16) clamp_val(val, 1, 0xFFFF); - if (i2c_smbus_write_byte_data(client, fan_reg_low[ix], - data->fan[ix] & 0xFF)) { - dev_err(&client->dev, "Register write error, aborting.\n"); - count = -EIO; - goto EXIT; - } - if (i2c_smbus_write_byte_data(client, - fan_reg_hi[ix], data->fan[ix] >> 8)) { - dev_err(&client->dev, "Register write error, aborting.\n"); - count = -EIO; - } -EXIT: - mutex_unlock(&data->update_lock); - return count; -} - -static ssize_t fan1_div_show(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - struct amc6821_data *data = amc6821_update_device(dev); - return sprintf(buf, "%d\n", data->fan1_div); -} + ret = regmap_write(regmap, AMC6821_REG_DCY_LOW_TEMP, val); + if (ret) + goto unlock; -static ssize_t fan1_div_store(struct device *dev, - struct device_attribute *attr, const char *buf, - size_t count) -{ - struct amc6821_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - long val; - int config = kstrtol(buf, 10, &val); - if (config) - return config; + for (i = 0; i < 2; i++) { + u8 temps[3]; - mutex_lock(&data->update_lock); - config = i2c_smbus_read_byte_data(client, AMC6821_REG_CONF4); - if (config < 0) { - dev_err(&client->dev, - "Error reading configuration register, aborting.\n"); - count = config; - goto EXIT; - } - switch (val) { - case 2: - config &= ~AMC6821_CONF4_PSPR; - data->fan1_div = 2; - break; - case 4: - config |= AMC6821_CONF4_PSPR; - data->fan1_div = 4; - break; - default: - count = -EINVAL; - goto EXIT; - } - if (i2c_smbus_write_byte_data(client, AMC6821_REG_CONF4, config)) { - dev_err(&client->dev, - "Configuration register write error, aborting.\n"); - count = -EIO; + ret = amc6821_get_auto_point_temps(regmap, i, temps); + if (ret) + break; + ret = set_slope_register(regmap, i, temps); + if (ret) + break; } -EXIT: +unlock: mutex_unlock(&data->update_lock); - return count; + return ret ? : count; } -static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, IDX_TEMP1_INPUT); -static SENSOR_DEVICE_ATTR_RW(temp1_min, temp, IDX_TEMP1_MIN); -static SENSOR_DEVICE_ATTR_RW(temp1_max, temp, IDX_TEMP1_MAX); -static SENSOR_DEVICE_ATTR_RW(temp1_crit, temp, IDX_TEMP1_CRIT); -static SENSOR_DEVICE_ATTR_RO(temp1_min_alarm, temp_alarm, IDX_TEMP1_MIN); -static SENSOR_DEVICE_ATTR_RO(temp1_max_alarm, temp_alarm, IDX_TEMP1_MAX); -static SENSOR_DEVICE_ATTR_RO(temp1_crit_alarm, temp_alarm, IDX_TEMP1_CRIT); -static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, IDX_TEMP2_INPUT); -static SENSOR_DEVICE_ATTR_RW(temp2_min, temp, IDX_TEMP2_MIN); -static SENSOR_DEVICE_ATTR_RW(temp2_max, temp, IDX_TEMP2_MAX); -static SENSOR_DEVICE_ATTR_RW(temp2_crit, temp, IDX_TEMP2_CRIT); -static SENSOR_DEVICE_ATTR_RO(temp2_fault, temp2_fault, 0); -static SENSOR_DEVICE_ATTR_RO(temp2_min_alarm, temp_alarm, IDX_TEMP2_MIN); -static SENSOR_DEVICE_ATTR_RO(temp2_max_alarm, temp_alarm, IDX_TEMP2_MAX); -static SENSOR_DEVICE_ATTR_RO(temp2_crit_alarm, temp_alarm, IDX_TEMP2_CRIT); -static SENSOR_DEVICE_ATTR_RO(fan1_input, fan, IDX_FAN1_INPUT); -static SENSOR_DEVICE_ATTR_RW(fan1_min, fan, IDX_FAN1_MIN); -static SENSOR_DEVICE_ATTR_RW(fan1_max, fan, IDX_FAN1_MAX); -static SENSOR_DEVICE_ATTR_RO(fan1_fault, fan1_fault, 0); -static SENSOR_DEVICE_ATTR_RW(fan1_div, fan1_div, 0); - -static SENSOR_DEVICE_ATTR_RW(pwm1, pwm1, 0); -static SENSOR_DEVICE_ATTR_RW(pwm1_enable, pwm1_enable, 0); static SENSOR_DEVICE_ATTR_RO(pwm1_auto_point1_pwm, pwm1_auto_point_pwm, 0); static SENSOR_DEVICE_ATTR_RW(pwm1_auto_point2_pwm, pwm1_auto_point_pwm, 1); static SENSOR_DEVICE_ATTR_RO(pwm1_auto_point3_pwm, pwm1_auto_point_pwm, 2); -static SENSOR_DEVICE_ATTR_RO(pwm1_auto_channels_temp, pwm1_auto_channels_temp, - 0); static SENSOR_DEVICE_ATTR_2_RO(temp1_auto_point1_temp, temp_auto_point_temp, - 1, 0); + 0, 0); static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_point2_temp, temp_auto_point_temp, - 1, 1); + 0, 1); static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_point3_temp, temp_auto_point_temp, - 1, 2); + 0, 2); static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_point1_temp, temp_auto_point_temp, - 2, 0); + 1, 0); static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_point2_temp, temp_auto_point_temp, - 2, 1); + 1, 1); static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_point3_temp, temp_auto_point_temp, - 2, 2); + 1, 2); static struct attribute *amc6821_attrs[] = { - &sensor_dev_attr_temp1_input.dev_attr.attr, - &sensor_dev_attr_temp1_min.dev_attr.attr, - &sensor_dev_attr_temp1_max.dev_attr.attr, - &sensor_dev_attr_temp1_crit.dev_attr.attr, - &sensor_dev_attr_temp1_min_alarm.dev_attr.attr, - &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_input.dev_attr.attr, - &sensor_dev_attr_temp2_min.dev_attr.attr, - &sensor_dev_attr_temp2_max.dev_attr.attr, - &sensor_dev_attr_temp2_crit.dev_attr.attr, - &sensor_dev_attr_temp2_min_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_fault.dev_attr.attr, - &sensor_dev_attr_fan1_input.dev_attr.attr, - &sensor_dev_attr_fan1_min.dev_attr.attr, - &sensor_dev_attr_fan1_max.dev_attr.attr, - &sensor_dev_attr_fan1_fault.dev_attr.attr, - &sensor_dev_attr_fan1_div.dev_attr.attr, - &sensor_dev_attr_pwm1.dev_attr.attr, - &sensor_dev_attr_pwm1_enable.dev_attr.attr, - &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr, @@ -765,13 +691,118 @@ static struct attribute *amc6821_attrs[] = { &sensor_dev_attr_temp2_auto_point3_temp.dev_attr.attr, NULL }; - ATTRIBUTE_GROUPS(amc6821); +static int amc6821_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + switch (type) { + case hwmon_temp: + return amc6821_temp_read(dev, attr, channel, val); + case hwmon_fan: + return amc6821_fan_read(dev, attr, val); + case hwmon_pwm: + return amc6821_pwm_read(dev, attr, val); + default: + return -EOPNOTSUPP; + } +} + +static int amc6821_write(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long val) +{ + switch (type) { + case hwmon_temp: + return amc6821_temp_write(dev, attr, channel, val); + case hwmon_fan: + return amc6821_fan_write(dev, attr, val); + case hwmon_pwm: + return amc6821_pwm_write(dev, attr, val); + default: + return -EOPNOTSUPP; + } +} + +static umode_t amc6821_is_visible(const void *data, + enum hwmon_sensor_types type, + u32 attr, int channel) +{ + switch (type) { + case hwmon_temp: + switch (attr) { + case hwmon_temp_input: + case hwmon_temp_min_alarm: + case hwmon_temp_max_alarm: + case hwmon_temp_crit_alarm: + case hwmon_temp_fault: + return 0444; + case hwmon_temp_min: + case hwmon_temp_max: + case hwmon_temp_crit: + return 0644; + default: + return 0; + } + case hwmon_fan: + switch (attr) { + case hwmon_fan_input: + case hwmon_fan_fault: + return 0444; + case hwmon_fan_pulses: + case hwmon_fan_min: + case hwmon_fan_max: + case hwmon_fan_target: + return 0644; + default: + return 0; + } + case hwmon_pwm: + switch (attr) { + case hwmon_pwm_mode: + case hwmon_pwm_enable: + case hwmon_pwm_input: + return 0644; + case hwmon_pwm_auto_channels_temp: + return 0444; + default: + return 0; + } + default: + return 0; + } +} + +static const struct hwmon_channel_info * const amc6821_info[] = { + HWMON_CHANNEL_INFO(temp, + HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | + HWMON_T_CRIT | HWMON_T_MIN_ALARM | + HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM, + HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | + HWMON_T_CRIT | HWMON_T_MIN_ALARM | + HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM | + HWMON_T_FAULT), + HWMON_CHANNEL_INFO(fan, + HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_MAX | + HWMON_F_TARGET | HWMON_F_PULSES | HWMON_F_FAULT), + HWMON_CHANNEL_INFO(pwm, + HWMON_PWM_INPUT | HWMON_PWM_ENABLE | HWMON_PWM_MODE | + HWMON_PWM_AUTO_CHANNELS_TEMP), + NULL +}; + +static const struct hwmon_ops amc6821_hwmon_ops = { + .is_visible = amc6821_is_visible, + .read = amc6821_read, + .write = amc6821_write, +}; + +static const struct hwmon_chip_info amc6821_chip_info = { + .ops = &amc6821_hwmon_ops, + .info = amc6821_info, +}; + /* Return 0 if detection is successful, -ENODEV otherwise */ -static int amc6821_detect( - struct i2c_client *client, - struct i2c_board_info *info) +static int amc6821_detect(struct i2c_client *client, struct i2c_board_info *info) { struct i2c_adapter *adapter = client->adapter; int address = client->addr; @@ -814,121 +845,96 @@ static int amc6821_detect( return 0; } -static int amc6821_init_client(struct i2c_client *client) +static int amc6821_init_client(struct amc6821_data *data) { - int config; - int err = -EIO; + struct regmap *regmap = data->regmap; + int err; if (init) { - config = i2c_smbus_read_byte_data(client, AMC6821_REG_CONF4); - - if (config < 0) { - dev_err(&client->dev, - "Error reading configuration register, aborting.\n"); - return err; - } - - config |= AMC6821_CONF4_MODE; - - if (i2c_smbus_write_byte_data(client, AMC6821_REG_CONF4, - config)) { - dev_err(&client->dev, - "Configuration register write error, aborting.\n"); + err = regmap_set_bits(regmap, AMC6821_REG_CONF4, AMC6821_CONF4_MODE); + if (err) return err; - } - - config = i2c_smbus_read_byte_data(client, AMC6821_REG_CONF3); - - if (config < 0) { - dev_err(&client->dev, - "Error reading configuration register, aborting.\n"); - return err; - } - - dev_info(&client->dev, "Revision %d\n", config & 0x0f); - - config &= ~AMC6821_CONF3_THERM_FAN_EN; - - if (i2c_smbus_write_byte_data(client, AMC6821_REG_CONF3, - config)) { - dev_err(&client->dev, - "Configuration register write error, aborting.\n"); - return err; - } - - config = i2c_smbus_read_byte_data(client, AMC6821_REG_CONF2); - - if (config < 0) { - dev_err(&client->dev, - "Error reading configuration register, aborting.\n"); - return err; - } - - config &= ~AMC6821_CONF2_RTFIE; - config &= ~AMC6821_CONF2_LTOIE; - config &= ~AMC6821_CONF2_RTOIE; - if (i2c_smbus_write_byte_data(client, - AMC6821_REG_CONF2, config)) { - dev_err(&client->dev, - "Configuration register write error, aborting.\n"); + err = regmap_clear_bits(regmap, AMC6821_REG_CONF3, AMC6821_CONF3_THERM_FAN_EN); + if (err) return err; - } - - config = i2c_smbus_read_byte_data(client, AMC6821_REG_CONF1); - - if (config < 0) { - dev_err(&client->dev, - "Error reading configuration register, aborting.\n"); + err = regmap_clear_bits(regmap, AMC6821_REG_CONF2, + AMC6821_CONF2_RTFIE | + AMC6821_CONF2_LTOIE | + AMC6821_CONF2_RTOIE); + if (err) return err; - } - config &= ~AMC6821_CONF1_THERMOVIE; - config &= ~AMC6821_CONF1_FANIE; - config |= AMC6821_CONF1_START; - if (pwminv) - config |= AMC6821_CONF1_PWMINV; - else - config &= ~AMC6821_CONF1_PWMINV; - - if (i2c_smbus_write_byte_data( - client, AMC6821_REG_CONF1, config)) { - dev_err(&client->dev, - "Configuration register write error, aborting.\n"); + err = regmap_update_bits(regmap, AMC6821_REG_CONF1, + AMC6821_CONF1_THERMOVIE | AMC6821_CONF1_FANIE | + AMC6821_CONF1_START | AMC6821_CONF1_PWMINV, + AMC6821_CONF1_START | + (pwminv ? AMC6821_CONF1_PWMINV : 0)); + if (err) return err; - } } return 0; } +static bool amc6821_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case AMC6821_REG_STAT1: + case AMC6821_REG_STAT2: + case AMC6821_REG_TEMP_LO: + case AMC6821_REG_TDATA_LOW: + case AMC6821_REG_LTEMP_HI: + case AMC6821_REG_RTEMP_HI: + case AMC6821_REG_TDATA_HI: + return true; + default: + return false; + } +} + +static const struct regmap_config amc6821_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .volatile_reg = amc6821_volatile_reg, + .cache_type = REGCACHE_MAPLE, +}; + static int amc6821_probe(struct i2c_client *client) { struct device *dev = &client->dev; struct amc6821_data *data; struct device *hwmon_dev; + struct regmap *regmap; int err; data = devm_kzalloc(dev, sizeof(struct amc6821_data), GFP_KERNEL); if (!data) return -ENOMEM; - data->client = client; - mutex_init(&data->update_lock); + regmap = devm_regmap_init_i2c(client, &amc6821_regmap_config); + if (IS_ERR(regmap)) + return dev_err_probe(dev, PTR_ERR(regmap), + "Failed to initialize regmap\n"); + data->regmap = regmap; - /* - * Initialize the amc6821 chip - */ - err = amc6821_init_client(client); + err = amc6821_init_client(data); if (err) return err; - hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, - data, - amc6821_groups); + if (of_device_is_compatible(dev->of_node, "tsd,mule")) { + err = devm_of_platform_populate(dev); + if (err) + return dev_err_probe(dev, err, + "Failed to create sub-devices\n"); + } + + hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, + data, &amc6821_chip_info, + amc6821_groups); return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id amc6821_id[] = { - { "amc6821", amc6821 }, + { "amc6821" }, { } }; @@ -937,7 +943,9 @@ MODULE_DEVICE_TABLE(i2c, amc6821_id); static const struct of_device_id __maybe_unused amc6821_of_match[] = { { .compatible = "ti,amc6821", - .data = (void *)amc6821, + }, + { + .compatible = "tsd,mule", }, { } }; diff --git a/drivers/hwmon/aquacomputer_d5next.c b/drivers/hwmon/aquacomputer_d5next.c index 2efe97f8d003..0dcb8a3a691d 100644 --- a/drivers/hwmon/aquacomputer_d5next.c +++ b/drivers/hwmon/aquacomputer_d5next.c @@ -22,7 +22,7 @@ #include <linux/module.h> #include <linux/mutex.h> #include <linux/seq_file.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #define USB_VENDOR_ID_AQUACOMPUTER 0x0c70 #define USB_PRODUCT_ID_AQUAERO 0xf001 @@ -202,16 +202,19 @@ static u16 aquastreamult_sensor_fan_offsets[] = { AQUASTREAMULT_FAN_OFFSET }; #define OCTO_NUM_FANS 8 #define OCTO_NUM_SENSORS 4 #define OCTO_NUM_VIRTUAL_SENSORS 16 +#define OCTO_NUM_FLOW_SENSORS 1 #define OCTO_CTRL_REPORT_SIZE 0x65F /* Sensor report offsets for the Octo */ #define OCTO_POWER_CYCLES 0x18 #define OCTO_SENSOR_START 0x3D #define OCTO_VIRTUAL_SENSORS_START 0x45 +#define OCTO_FLOW_SENSOR_OFFSET 0x7B static u16 octo_sensor_fan_offsets[] = { 0x7D, 0x8A, 0x97, 0xA4, 0xB1, 0xBE, 0xCB, 0xD8 }; /* Control report offsets for the Octo */ #define OCTO_TEMP_CTRL_OFFSET 0xA +#define OCTO_FLOW_PULSES_CTRL_OFFSET 0x6 /* Fan speed offsets (0-100%) */ static u16 octo_ctrl_fan_offsets[] = { 0x5B, 0xB0, 0x105, 0x15A, 0x1AF, 0x204, 0x259, 0x2AE }; @@ -363,18 +366,6 @@ static const char *const label_aquaero_calc_temp_sensors[] = { "Calc. virtual sensor 4" }; -/* Labels for Octo and Quadro (except speed) */ -static const char *const label_fan_speed[] = { - "Fan 1 speed", - "Fan 2 speed", - "Fan 3 speed", - "Fan 4 speed", - "Fan 5 speed", - "Fan 6 speed", - "Fan 7 speed", - "Fan 8 speed" -}; - static const char *const label_fan_power[] = { "Fan 1 power", "Fan 2 power", @@ -408,6 +399,19 @@ static const char *const label_fan_current[] = { "Fan 8 current" }; +/* Labels for Octo fan speeds */ +static const char *const label_octo_speeds[] = { + "Fan 1 speed", + "Fan 2 speed", + "Fan 3 speed", + "Fan 4 speed", + "Fan 5 speed", + "Fan 6 speed", + "Fan 7 speed", + "Fan 8 speed", + "Flow speed [dL/h]", +}; + /* Labels for Quadro fan speeds */ static const char *const label_quadro_speeds[] = { "Fan 1 speed", @@ -593,7 +597,7 @@ struct aqc_data { /* Sensor values */ s32 temp_input[20]; /* Max 4 physical and 16 virtual or 8 physical and 12 virtual */ - s32 speed_input[8]; + s32 speed_input[9]; u32 speed_input_min[1]; u32 speed_input_target[1]; u32 speed_input_max[1]; @@ -844,6 +848,7 @@ static umode_t aqc_is_visible(const void *data, enum hwmon_sensor_types type, u3 return 0444; break; case aquaero: + case octo: case quadro: case highflow: /* Special case to support flow sensors */ @@ -857,9 +862,16 @@ static umode_t aqc_is_visible(const void *data, enum hwmon_sensor_types type, u3 } break; case hwmon_fan_pulses: - /* Special case for Quadro flow sensor */ - if (priv->kind == quadro && channel == priv->num_fans) - return 0644; + /* Special case for Quadro/Octo flow sensor */ + if (channel == priv->num_fans) { + switch (priv->kind) { + case quadro: + case octo: + return 0644; + default: + break; + } + } break; case hwmon_fan_min: case hwmon_fan_max: @@ -1289,7 +1301,8 @@ static const struct hwmon_channel_info * const aqc_info[] = { HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_PULSES, HWMON_F_INPUT | HWMON_F_LABEL, HWMON_F_INPUT | HWMON_F_LABEL, - HWMON_F_INPUT | HWMON_F_LABEL), + HWMON_F_INPUT | HWMON_F_LABEL, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_PULSES), HWMON_CHANNEL_INFO(power, HWMON_P_INPUT | HWMON_P_LABEL, HWMON_P_INPUT | HWMON_P_LABEL, @@ -1658,16 +1671,20 @@ static int aqc_probe(struct hid_device *hdev, const struct hid_device_id *id) priv->temp_sensor_start_offset = OCTO_SENSOR_START; priv->num_virtual_temp_sensors = OCTO_NUM_VIRTUAL_SENSORS; priv->virtual_temp_sensor_start_offset = OCTO_VIRTUAL_SENSORS_START; + priv->num_flow_sensors = OCTO_NUM_FLOW_SENSORS; + priv->flow_sensors_start_offset = OCTO_FLOW_SENSOR_OFFSET; + priv->temp_ctrl_offset = OCTO_TEMP_CTRL_OFFSET; priv->buffer_size = OCTO_CTRL_REPORT_SIZE; priv->ctrl_report_delay = CTRL_REPORT_DELAY; + priv->flow_pulses_ctrl_offset = OCTO_FLOW_PULSES_CTRL_OFFSET; priv->power_cycle_count_offset = OCTO_POWER_CYCLES; priv->temp_label = label_temp_sensors; priv->virtual_temp_label = label_virtual_temp_sensors; - priv->speed_label = label_fan_speed; + priv->speed_label = label_octo_speeds; priv->power_label = label_fan_power; priv->voltage_label = label_fan_voltage; priv->current_label = label_fan_current; diff --git a/drivers/hwmon/asb100.c b/drivers/hwmon/asb100.c index 974521e9b6b4..14e7737866c2 100644 --- a/drivers/hwmon/asb100.c +++ b/drivers/hwmon/asb100.c @@ -213,7 +213,7 @@ static struct asb100_data *asb100_update_device(struct device *dev); static void asb100_init_client(struct i2c_client *client); static const struct i2c_device_id asb100_id[] = { - { "asb100", 0 }, + { "asb100" }, { } }; MODULE_DEVICE_TABLE(i2c, asb100_id); diff --git a/drivers/hwmon/aspeed-g6-pwm-tach.c b/drivers/hwmon/aspeed-g6-pwm-tach.c index 597b3b019d49..4174b129d1fc 100644 --- a/drivers/hwmon/aspeed-g6-pwm-tach.c +++ b/drivers/hwmon/aspeed-g6-pwm-tach.c @@ -136,7 +136,6 @@ struct aspeed_pwm_tach_data { struct clk *clk; struct reset_control *reset; unsigned long clk_rate; - struct pwm_chip chip; bool tach_present[TACH_ASPEED_NR_TACHS]; u32 tach_divisor; }; @@ -144,7 +143,7 @@ struct aspeed_pwm_tach_data { static inline struct aspeed_pwm_tach_data * aspeed_pwm_chip_to_data(struct pwm_chip *chip) { - return container_of(chip, struct aspeed_pwm_tach_data, chip); + return pwmchip_get_drvdata(chip); } static int aspeed_pwm_get_state(struct pwm_chip *chip, struct pwm_device *pwm, @@ -195,7 +194,7 @@ static int aspeed_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, expect_period = div64_u64(ULLONG_MAX, (u64)priv->clk_rate); expect_period = min(expect_period, state->period); - dev_dbg(chip->dev, "expect period: %lldns, duty_cycle: %lldns", + dev_dbg(pwmchip_parent(chip), "expect period: %lldns, duty_cycle: %lldns", expect_period, state->duty_cycle); /* * Pick the smallest value for div_h so that div_l can be the biggest @@ -218,12 +217,12 @@ static int aspeed_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, if (div_l > 255) div_l = 255; - dev_dbg(chip->dev, "clk source: %ld div_h %lld, div_l : %lld\n", + dev_dbg(pwmchip_parent(chip), "clk source: %ld div_h %lld, div_l : %lld\n", priv->clk_rate, div_h, div_l); /* duty_pt = duty_cycle * (PERIOD + 1) / period */ duty_pt = div64_u64(state->duty_cycle * priv->clk_rate, (u64)NSEC_PER_SEC * (div_l + 1) << div_h); - dev_dbg(chip->dev, "duty_cycle = %lld, duty_pt = %d\n", + dev_dbg(pwmchip_parent(chip), "duty_cycle = %lld, duty_pt = %d\n", state->duty_cycle, duty_pt); /* @@ -457,8 +456,8 @@ static int aspeed_pwm_tach_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev, *hwmon; int ret; - struct device_node *child; struct aspeed_pwm_tach_data *priv; + struct pwm_chip *chip; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); if (!priv) @@ -487,18 +486,20 @@ static int aspeed_pwm_tach_probe(struct platform_device *pdev) if (ret) return ret; - priv->chip.dev = dev; - priv->chip.ops = &aspeed_pwm_ops; - priv->chip.npwm = PWM_ASPEED_NR_PWMS; + chip = devm_pwmchip_alloc(dev, PWM_ASPEED_NR_PWMS, 0); + if (IS_ERR(chip)) + return PTR_ERR(chip); - ret = devm_pwmchip_add(dev, &priv->chip); + pwmchip_set_drvdata(chip, priv); + chip->ops = &aspeed_pwm_ops; + + ret = devm_pwmchip_add(dev, chip); if (ret) return dev_err_probe(dev, ret, "Failed to add PWM chip\n"); - for_each_child_of_node(dev->of_node, child) { + for_each_child_of_node_scoped(dev->of_node, child) { ret = aspeed_create_fan_monitor(dev, child, priv); if (ret) { - of_node_put(child); dev_warn(dev, "Failed to create fan %d", ret); return 0; } @@ -516,13 +517,11 @@ static int aspeed_pwm_tach_probe(struct platform_device *pdev) return 0; } -static int aspeed_pwm_tach_remove(struct platform_device *pdev) +static void aspeed_pwm_tach_remove(struct platform_device *pdev) { struct aspeed_pwm_tach_data *priv = platform_get_drvdata(pdev); reset_control_assert(priv->reset); - - return 0; } static const struct of_device_id aspeed_pwm_tach_match[] = { diff --git a/drivers/hwmon/aspeed-pwm-tacho.c b/drivers/hwmon/aspeed-pwm-tacho.c index 4acc1858d8ac..aa159bf158a3 100644 --- a/drivers/hwmon/aspeed-pwm-tacho.c +++ b/drivers/hwmon/aspeed-pwm-tacho.c @@ -907,7 +907,7 @@ static void aspeed_pwm_tacho_remove(void *data) static int aspeed_pwm_tacho_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct device_node *np, *child; + struct device_node *np; struct aspeed_pwm_tacho_data *priv; void __iomem *regs; struct device *hwmon; @@ -951,12 +951,10 @@ static int aspeed_pwm_tacho_probe(struct platform_device *pdev) aspeed_create_type(priv); - for_each_child_of_node(np, child) { + for_each_child_of_node_scoped(np, child) { ret = aspeed_create_fan(dev, child, priv); - if (ret) { - of_node_put(child); + if (ret) return ret; - } } priv->groups[0] = &pwm_dev_group; diff --git a/drivers/hwmon/asus-ec-sensors.c b/drivers/hwmon/asus-ec-sensors.c index 36f9e38000d5..006ced5ab6e6 100644 --- a/drivers/hwmon/asus-ec-sensors.c +++ b/drivers/hwmon/asus-ec-sensors.c @@ -34,7 +34,7 @@ #include <linux/sort.h> #include <linux/units.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> static char *mutex_path_override; @@ -250,6 +250,8 @@ static const struct ec_sensor_info sensors_family_amd_600[] = { EC_SENSOR("Water_In", hwmon_temp, 1, 0x01, 0x00), [ec_sensor_temp_water_out] = EC_SENSOR("Water_Out", hwmon_temp, 1, 0x01, 0x01), + [ec_sensor_fan_cpu_opt] = + EC_SENSOR("CPU_Opt", hwmon_fan, 2, 0x00, 0xb0), }; static const struct ec_sensor_info sensors_family_intel_300[] = { @@ -314,6 +316,14 @@ static const struct ec_board_info board_info_prime_x570_pro = { .family = family_amd_500_series, }; +static const struct ec_board_info board_info_prime_x670e_pro_wifi = { + .sensors = SENSOR_TEMP_CPU | SENSOR_TEMP_CPU_PACKAGE | + SENSOR_TEMP_MB | SENSOR_TEMP_VRM | + SENSOR_TEMP_T_SENSOR | SENSOR_FAN_CPU_OPT, + .mutex_path = ACPI_GLOBAL_LOCK_PSEUDO_PATH, + .family = family_amd_600_series, +}; + static const struct ec_board_info board_info_pro_art_x570_creator_wifi = { .sensors = SENSOR_SET_TEMP_CHIPSET_CPU_MB | SENSOR_TEMP_VRM | SENSOR_TEMP_T_SENSOR | SENSOR_FAN_CPU_OPT | @@ -322,6 +332,14 @@ static const struct ec_board_info board_info_pro_art_x570_creator_wifi = { .family = family_amd_500_series, }; +static const struct ec_board_info board_info_pro_art_x670E_creator_wifi = { + .sensors = SENSOR_TEMP_CPU | SENSOR_TEMP_CPU_PACKAGE | + SENSOR_TEMP_MB | SENSOR_TEMP_VRM | + SENSOR_TEMP_T_SENSOR, + .mutex_path = ACPI_GLOBAL_LOCK_PSEUDO_PATH, + .family = family_amd_600_series, +}; + static const struct ec_board_info board_info_pro_art_b550_creator = { .sensors = SENSOR_SET_TEMP_CHIPSET_CPU_MB | SENSOR_TEMP_T_SENSOR | @@ -412,7 +430,7 @@ static const struct ec_board_info board_info_strix_b550_i_gaming = { static const struct ec_board_info board_info_strix_x570_e_gaming = { .sensors = SENSOR_SET_TEMP_CHIPSET_CPU_MB | - SENSOR_TEMP_T_SENSOR | SENSOR_TEMP_VRM | + SENSOR_TEMP_T_SENSOR | SENSOR_FAN_CHIPSET | SENSOR_CURR_CPU | SENSOR_IN_CPU_CORE, .mutex_path = ASUS_HW_ACCESS_MUTEX_ASMX, @@ -469,6 +487,15 @@ static const struct ec_board_info board_info_zenith_ii_extreme = { .family = family_amd_500_series, }; +static const struct ec_board_info board_info_tuf_gaming_x670e_plus = { + .sensors = SENSOR_TEMP_CPU | SENSOR_TEMP_CPU_PACKAGE | + SENSOR_TEMP_MB | SENSOR_TEMP_VRM | + SENSOR_TEMP_WATER_IN | SENSOR_TEMP_WATER_OUT | + SENSOR_FAN_CPU_OPT, + .mutex_path = ACPI_GLOBAL_LOCK_PSEUDO_PATH, + .family = family_amd_600_series, +}; + #define DMI_EXACT_MATCH_ASUS_BOARD_NAME(name, board_info) \ { \ .matches = { \ @@ -484,8 +511,12 @@ static const struct dmi_system_id dmi_table[] = { &board_info_prime_x470_pro), DMI_EXACT_MATCH_ASUS_BOARD_NAME("PRIME X570-PRO", &board_info_prime_x570_pro), + DMI_EXACT_MATCH_ASUS_BOARD_NAME("PRIME X670E-PRO WIFI", + &board_info_prime_x670e_pro_wifi), DMI_EXACT_MATCH_ASUS_BOARD_NAME("ProArt X570-CREATOR WIFI", &board_info_pro_art_x570_creator_wifi), + DMI_EXACT_MATCH_ASUS_BOARD_NAME("ProArt X670E-CREATOR WIFI", + &board_info_pro_art_x670E_creator_wifi), DMI_EXACT_MATCH_ASUS_BOARD_NAME("ProArt B550-CREATOR", &board_info_pro_art_b550_creator), DMI_EXACT_MATCH_ASUS_BOARD_NAME("Pro WS X570-ACE", @@ -528,6 +559,8 @@ static const struct dmi_system_id dmi_table[] = { &board_info_zenith_ii_extreme), DMI_EXACT_MATCH_ASUS_BOARD_NAME("ROG ZENITH II EXTREME ALPHA", &board_info_zenith_ii_extreme), + DMI_EXACT_MATCH_ASUS_BOARD_NAME("TUF GAMING X670E-PLUS", + &board_info_tuf_gaming_x670e_plus), {}, }; diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c index d778a2aaefec..c80350e499e9 100644 --- a/drivers/hwmon/asus_atk0110.c +++ b/drivers/hwmon/asus_atk0110.c @@ -17,6 +17,7 @@ #include <linux/jiffies.h> #include <linux/err.h> #include <linux/acpi.h> +#include <linux/string_choices.h> #define ATK_HID "ATK0110" @@ -441,7 +442,7 @@ static void atk_print_sensor(struct atk_data *data, union acpi_object *obj) flags->integer.value, name->string.pointer, limit1->integer.value, limit2->integer.value, - enable->integer.value ? "enabled" : "disabled"); + str_enabled_disabled(enable->integer.value)); #endif } @@ -783,7 +784,6 @@ static const struct file_operations atk_debugfs_ggrp_fops = { .read = atk_debugfs_ggrp_read, .open = atk_debugfs_ggrp_open, .release = atk_debugfs_ggrp_release, - .llseek = no_llseek, }; static void atk_debugfs_init(struct atk_data *data) @@ -1075,8 +1075,7 @@ static int atk_ec_enabled(struct atk_data *data) err = -EIO; } else { err = (buf->value != 0); - dev_dbg(dev, "EC is %sabled\n", - err ? "en" : "dis"); + dev_dbg(dev, "EC is %s\n", str_enabled_disabled(err)); } ACPI_FREE(obj); @@ -1097,18 +1096,15 @@ static int atk_ec_ctl(struct atk_data *data, int enable) obj = atk_sitm(data, &sitm); if (IS_ERR(obj)) { - dev_err(dev, "Failed to %sable the EC\n", - enable ? "en" : "dis"); + dev_err(dev, "Failed to %s the EC\n", str_enable_disable(enable)); return PTR_ERR(obj); } ec_ret = (struct atk_acpi_ret_buffer *)obj->buffer.pointer; if (ec_ret->flags == 0) { - dev_err(dev, "Failed to %sable the EC\n", - enable ? "en" : "dis"); + dev_err(dev, "Failed to %s the EC\n", str_enable_disable(enable)); err = -EIO; } else { - dev_info(dev, "EC %sabled\n", - enable ? "en" : "dis"); + dev_info(dev, "EC %s\n", str_enabled_disabled(enable)); } ACPI_FREE(obj); @@ -1389,4 +1385,5 @@ static void __exit atk0110_exit(void) module_init(atk0110_init); module_exit(atk0110_exit); +MODULE_DESCRIPTION("ASUS ATK0110 driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/asus_rog_ryujin.c b/drivers/hwmon/asus_rog_ryujin.c index f8b20346a995..e5e93a20723c 100644 --- a/drivers/hwmon/asus_rog_ryujin.c +++ b/drivers/hwmon/asus_rog_ryujin.c @@ -11,7 +11,7 @@ #include <linux/jiffies.h> #include <linux/module.h> #include <linux/spinlock.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #define DRIVER_NAME "asus_rog_ryujin" diff --git a/drivers/hwmon/atxp1.c b/drivers/hwmon/atxp1.c index d1de020abec6..1c7e9a98b757 100644 --- a/drivers/hwmon/atxp1.c +++ b/drivers/hwmon/atxp1.c @@ -278,7 +278,7 @@ static int atxp1_probe(struct i2c_client *client) }; static const struct i2c_device_id atxp1_id[] = { - { "atxp1", 0 }, + { "atxp1" }, { } }; MODULE_DEVICE_TABLE(i2c, atxp1_id); diff --git a/drivers/hwmon/cgbc-hwmon.c b/drivers/hwmon/cgbc-hwmon.c new file mode 100644 index 000000000000..772f44d56ccf --- /dev/null +++ b/drivers/hwmon/cgbc-hwmon.c @@ -0,0 +1,304 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * cgbc-hwmon - Congatec Board Controller hardware monitoring driver + * + * Copyright (C) 2024 Thomas Richard <thomas.richard@bootlin.com> + */ + +#include <linux/bitfield.h> +#include <linux/device.h> +#include <linux/hwmon.h> +#include <linux/mfd/cgbc.h> +#include <linux/module.h> +#include <linux/platform_device.h> + +#define CGBC_HWMON_CMD_SENSOR 0x77 +#define CGBC_HWMON_CMD_SENSOR_DATA_SIZE 0x05 + +#define CGBC_HWMON_TYPE_MASK GENMASK(6, 5) +#define CGBC_HWMON_ID_MASK GENMASK(4, 0) +#define CGBC_HWMON_ACTIVE_BIT BIT(7) + +struct cgbc_hwmon_sensor { + enum hwmon_sensor_types type; + bool active; + unsigned int index; + unsigned int channel; + const char *label; +}; + +struct cgbc_hwmon_data { + struct cgbc_device_data *cgbc; + unsigned int nb_sensors; + struct cgbc_hwmon_sensor *sensors; +}; + +enum cgbc_sensor_types { + CGBC_HWMON_TYPE_TEMP = 1, + CGBC_HWMON_TYPE_IN, + CGBC_HWMON_TYPE_FAN +}; + +static const char * const cgbc_hwmon_labels_temp[] = { + "CPU Temperature", + "Box Temperature", + "Ambient Temperature", + "Board Temperature", + "Carrier Temperature", + "Chipset Temperature", + "Video Temperature", + "Other Temperature", + "TOPDIM Temperature", + "BOTTOMDIM Temperature", +}; + +static const struct { + enum hwmon_sensor_types type; + const char *label; +} cgbc_hwmon_labels_in[] = { + { hwmon_in, "CPU Voltage" }, + { hwmon_in, "DC Runtime Voltage" }, + { hwmon_in, "DC Standby Voltage" }, + { hwmon_in, "CMOS Battery Voltage" }, + { hwmon_in, "Battery Voltage" }, + { hwmon_in, "AC Voltage" }, + { hwmon_in, "Other Voltage" }, + { hwmon_in, "5V Voltage" }, + { hwmon_in, "5V Standby Voltage" }, + { hwmon_in, "3V3 Voltage" }, + { hwmon_in, "3V3 Standby Voltage" }, + { hwmon_in, "VCore A Voltage" }, + { hwmon_in, "VCore B Voltage" }, + { hwmon_in, "12V Voltage" }, + { hwmon_curr, "DC Current" }, + { hwmon_curr, "5V Current" }, + { hwmon_curr, "12V Current" }, +}; + +#define CGBC_HWMON_NB_IN_SENSORS 14 + +static const char * const cgbc_hwmon_labels_fan[] = { + "CPU Fan", + "Box Fan", + "Ambient Fan", + "Chipset Fan", + "Video Fan", + "Other Fan", +}; + +static int cgbc_hwmon_cmd(struct cgbc_device_data *cgbc, u8 index, u8 *data) +{ + u8 cmd[2] = {CGBC_HWMON_CMD_SENSOR, index}; + + return cgbc_command(cgbc, cmd, sizeof(cmd), data, CGBC_HWMON_CMD_SENSOR_DATA_SIZE, NULL); +} + +static int cgbc_hwmon_probe_sensors(struct device *dev, struct cgbc_hwmon_data *hwmon) +{ + struct cgbc_device_data *cgbc = hwmon->cgbc; + struct cgbc_hwmon_sensor *sensor = hwmon->sensors; + u8 data[CGBC_HWMON_CMD_SENSOR_DATA_SIZE], nb_sensors, i; + int ret; + + ret = cgbc_hwmon_cmd(cgbc, 0, &data[0]); + if (ret) + return ret; + + nb_sensors = data[0]; + + hwmon->sensors = devm_kzalloc(dev, sizeof(*hwmon->sensors) * nb_sensors, GFP_KERNEL); + sensor = hwmon->sensors; + + for (i = 0; i < nb_sensors; i++) { + enum cgbc_sensor_types type; + unsigned int channel; + + /* + * No need to request data for the first sensor. + * We got data for the first sensor when we ask the number of sensors to the Board + * Controller. + */ + if (i) { + ret = cgbc_hwmon_cmd(cgbc, i, &data[0]); + if (ret) + return ret; + } + + type = FIELD_GET(CGBC_HWMON_TYPE_MASK, data[1]); + channel = FIELD_GET(CGBC_HWMON_ID_MASK, data[1]) - 1; + + if (type == CGBC_HWMON_TYPE_TEMP && channel < ARRAY_SIZE(cgbc_hwmon_labels_temp)) { + sensor->type = hwmon_temp; + sensor->label = cgbc_hwmon_labels_temp[channel]; + } else if (type == CGBC_HWMON_TYPE_IN && + channel < ARRAY_SIZE(cgbc_hwmon_labels_in)) { + /* + * The Board Controller doesn't differentiate current and voltage sensors. + * Get the sensor type from cgbc_hwmon_labels_in[channel].type instead. + */ + sensor->type = cgbc_hwmon_labels_in[channel].type; + sensor->label = cgbc_hwmon_labels_in[channel].label; + } else if (type == CGBC_HWMON_TYPE_FAN && + channel < ARRAY_SIZE(cgbc_hwmon_labels_fan)) { + sensor->type = hwmon_fan; + sensor->label = cgbc_hwmon_labels_fan[channel]; + } else { + dev_warn(dev, "Board Controller returned an unknown sensor (type=%d, channel=%d), ignore it", + type, channel); + continue; + } + + sensor->active = FIELD_GET(CGBC_HWMON_ACTIVE_BIT, data[1]); + sensor->channel = channel; + sensor->index = i; + sensor++; + hwmon->nb_sensors++; + } + + return 0; +} + +static struct cgbc_hwmon_sensor *cgbc_hwmon_find_sensor(struct cgbc_hwmon_data *hwmon, + enum hwmon_sensor_types type, int channel) +{ + struct cgbc_hwmon_sensor *sensor = NULL; + int i; + + /* + * The Board Controller doesn't differentiate current and voltage sensors. + * The channel value (from the Board Controller point of view) shall be computed for current + * sensors. + */ + if (type == hwmon_curr) + channel += CGBC_HWMON_NB_IN_SENSORS; + + for (i = 0; i < hwmon->nb_sensors; i++) { + if (hwmon->sensors[i].type == type && hwmon->sensors[i].channel == channel) { + sensor = &hwmon->sensors[i]; + break; + } + } + + return sensor; +} + +static int cgbc_hwmon_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, + long *val) +{ + struct cgbc_hwmon_data *hwmon = dev_get_drvdata(dev); + struct cgbc_hwmon_sensor *sensor = cgbc_hwmon_find_sensor(hwmon, type, channel); + struct cgbc_device_data *cgbc = hwmon->cgbc; + u8 data[CGBC_HWMON_CMD_SENSOR_DATA_SIZE]; + int ret; + + ret = cgbc_hwmon_cmd(cgbc, sensor->index, &data[0]); + if (ret) + return ret; + + *val = (data[3] << 8) | data[2]; + + /* + * For the Board Controller 1lsb = 0.1 degree centigrade. + * Other units are as expected. + */ + if (sensor->type == hwmon_temp) + *val *= 100; + + return 0; +} + +static umode_t cgbc_hwmon_is_visible(const void *_data, enum hwmon_sensor_types type, u32 attr, + int channel) +{ + struct cgbc_hwmon_data *data = (struct cgbc_hwmon_data *)_data; + struct cgbc_hwmon_sensor *sensor; + + sensor = cgbc_hwmon_find_sensor(data, type, channel); + if (!sensor) + return 0; + + return sensor->active ? 0444 : 0; +} + +static int cgbc_hwmon_read_string(struct device *dev, enum hwmon_sensor_types type, u32 attr, + int channel, const char **str) +{ + struct cgbc_hwmon_data *hwmon = dev_get_drvdata(dev); + struct cgbc_hwmon_sensor *sensor = cgbc_hwmon_find_sensor(hwmon, type, channel); + + *str = sensor->label; + + return 0; +} + +static const struct hwmon_channel_info * const cgbc_hwmon_info[] = { + HWMON_CHANNEL_INFO(temp, + HWMON_T_INPUT | HWMON_T_LABEL, HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, HWMON_T_INPUT | HWMON_T_LABEL), + HWMON_CHANNEL_INFO(in, + HWMON_I_INPUT | HWMON_I_LABEL, HWMON_I_INPUT | HWMON_I_LABEL, + HWMON_I_INPUT | HWMON_I_LABEL, HWMON_I_INPUT | HWMON_I_LABEL, + HWMON_I_INPUT | HWMON_I_LABEL, HWMON_I_INPUT | HWMON_I_LABEL, + HWMON_I_INPUT | HWMON_I_LABEL, HWMON_I_INPUT | HWMON_I_LABEL, + HWMON_I_INPUT | HWMON_I_LABEL, HWMON_I_INPUT | HWMON_I_LABEL, + HWMON_I_INPUT | HWMON_I_LABEL, HWMON_I_INPUT | HWMON_I_LABEL, + HWMON_I_INPUT | HWMON_I_LABEL, HWMON_I_INPUT | HWMON_I_LABEL), + HWMON_CHANNEL_INFO(curr, + HWMON_C_INPUT | HWMON_C_LABEL, HWMON_C_INPUT | HWMON_C_LABEL, + HWMON_C_INPUT | HWMON_C_LABEL), + HWMON_CHANNEL_INFO(fan, + HWMON_F_INPUT | HWMON_F_LABEL, HWMON_F_INPUT | HWMON_F_LABEL, + HWMON_F_INPUT | HWMON_F_LABEL, HWMON_F_INPUT | HWMON_F_LABEL, + HWMON_F_INPUT | HWMON_F_LABEL, HWMON_F_INPUT | HWMON_F_LABEL), + NULL +}; + +static const struct hwmon_ops cgbc_hwmon_ops = { + .is_visible = cgbc_hwmon_is_visible, + .read = cgbc_hwmon_read, + .read_string = cgbc_hwmon_read_string, +}; + +static const struct hwmon_chip_info cgbc_chip_info = { + .ops = &cgbc_hwmon_ops, + .info = cgbc_hwmon_info, +}; + +static int cgbc_hwmon_probe(struct platform_device *pdev) +{ + struct cgbc_device_data *cgbc = dev_get_drvdata(pdev->dev.parent); + struct device *dev = &pdev->dev; + struct cgbc_hwmon_data *data; + struct device *hwmon_dev; + int ret; + + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->cgbc = cgbc; + + ret = cgbc_hwmon_probe_sensors(dev, data); + if (ret) + return dev_err_probe(dev, ret, "Failed to probe sensors"); + + hwmon_dev = devm_hwmon_device_register_with_info(dev, "cgbc_hwmon", data, &cgbc_chip_info, + NULL); + return PTR_ERR_OR_ZERO(hwmon_dev); +} + +static struct platform_driver cgbc_hwmon_driver = { + .driver = { + .name = "cgbc-hwmon", + }, + .probe = cgbc_hwmon_probe, +}; + +module_platform_driver(cgbc_hwmon_driver); + +MODULE_AUTHOR("Thomas Richard <thomas.richard@bootlin.com>"); +MODULE_DESCRIPTION("Congatec Board Controller Hardware Monitoring Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/chipcap2.c b/drivers/hwmon/chipcap2.c index 6ccceae21f70..9d071f7ca9d2 100644 --- a/drivers/hwmon/chipcap2.c +++ b/drivers/hwmon/chipcap2.c @@ -13,6 +13,7 @@ #include <linux/bitfield.h> #include <linux/bits.h> +#include <linux/cleanup.h> #include <linux/completion.h> #include <linux/delay.h> #include <linux/hwmon.h> @@ -556,55 +557,40 @@ static int cc2_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, long *val) { struct cc2_data *data = dev_get_drvdata(dev); - int ret = 0; - mutex_lock(&data->dev_access_lock); + guard(mutex)(&data->dev_access_lock); switch (type) { case hwmon_temp: - ret = cc2_measurement(data, type, val); - break; + return cc2_measurement(data, type, val); case hwmon_humidity: switch (attr) { case hwmon_humidity_input: - ret = cc2_measurement(data, type, val); - break; + return cc2_measurement(data, type, val); case hwmon_humidity_min: - ret = cc2_get_reg_val(data, CC2_R_ALARM_L_ON, val); - break; + return cc2_get_reg_val(data, CC2_R_ALARM_L_ON, val); case hwmon_humidity_min_hyst: - ret = cc2_get_reg_val(data, CC2_R_ALARM_L_OFF, val); - break; + return cc2_get_reg_val(data, CC2_R_ALARM_L_OFF, val); case hwmon_humidity_max: - ret = cc2_get_reg_val(data, CC2_R_ALARM_H_ON, val); - break; + return cc2_get_reg_val(data, CC2_R_ALARM_H_ON, val); case hwmon_humidity_max_hyst: - ret = cc2_get_reg_val(data, CC2_R_ALARM_H_OFF, val); - break; + return cc2_get_reg_val(data, CC2_R_ALARM_H_OFF, val); case hwmon_humidity_min_alarm: - ret = cc2_humidity_min_alarm_status(data, val); - break; + return cc2_humidity_min_alarm_status(data, val); case hwmon_humidity_max_alarm: - ret = cc2_humidity_max_alarm_status(data, val); - break; + return cc2_humidity_max_alarm_status(data, val); default: - ret = -EOPNOTSUPP; + return -EOPNOTSUPP; } - break; default: - ret = -EOPNOTSUPP; + return -EOPNOTSUPP; } - - mutex_unlock(&data->dev_access_lock); - - return ret; } static int cc2_write(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, long val) { struct cc2_data *data = dev_get_drvdata(dev); - int ret; u16 arg; u8 cmd; @@ -614,41 +600,28 @@ static int cc2_write(struct device *dev, enum hwmon_sensor_types type, u32 attr, if (val < 0 || val > CC2_RH_MAX) return -EINVAL; - mutex_lock(&data->dev_access_lock); + guard(mutex)(&data->dev_access_lock); switch (attr) { case hwmon_humidity_min: cmd = CC2_W_ALARM_L_ON; arg = cc2_rh_to_reg(val); - ret = cc2_write_reg(data, cmd, arg); - break; - + return cc2_write_reg(data, cmd, arg); case hwmon_humidity_min_hyst: cmd = CC2_W_ALARM_L_OFF; arg = cc2_rh_to_reg(val); - ret = cc2_write_reg(data, cmd, arg); - break; - + return cc2_write_reg(data, cmd, arg); case hwmon_humidity_max: cmd = CC2_W_ALARM_H_ON; arg = cc2_rh_to_reg(val); - ret = cc2_write_reg(data, cmd, arg); - break; - + return cc2_write_reg(data, cmd, arg); case hwmon_humidity_max_hyst: cmd = CC2_W_ALARM_H_OFF; arg = cc2_rh_to_reg(val); - ret = cc2_write_reg(data, cmd, arg); - break; - + return cc2_write_reg(data, cmd, arg); default: - ret = -EOPNOTSUPP; - break; + return -EOPNOTSUPP; } - - mutex_unlock(&data->dev_access_lock); - - return ret; } static int cc2_request_ready_irq(struct cc2_data *data, struct device *dev) @@ -740,37 +713,26 @@ static int cc2_probe(struct i2c_client *client) data->client = client; data->regulator = devm_regulator_get_exclusive(dev, "vdd"); - if (IS_ERR(data->regulator)) { - dev_err_probe(dev, PTR_ERR(data->regulator), - "Failed to get regulator\n"); - return PTR_ERR(data->regulator); - } + if (IS_ERR(data->regulator)) + return dev_err_probe(dev, PTR_ERR(data->regulator), + "Failed to get regulator\n"); ret = cc2_request_ready_irq(data, dev); - if (ret) { - dev_err_probe(dev, ret, "Failed to request ready irq\n"); - return ret; - } + if (ret) + return dev_err_probe(dev, ret, "Failed to request ready irq\n"); ret = cc2_request_alarm_irqs(data, dev); - if (ret) { - dev_err_probe(dev, ret, "Failed to request alarm irqs\n"); - goto disable; - } + if (ret) + return dev_err_probe(dev, ret, "Failed to request alarm irqs\n"); data->hwmon = devm_hwmon_device_register_with_info(dev, client->name, data, &cc2_chip_info, NULL); - if (IS_ERR(data->hwmon)) { - dev_err_probe(dev, PTR_ERR(data->hwmon), - "Failed to register hwmon device\n"); - ret = PTR_ERR(data->hwmon); - } + if (IS_ERR(data->hwmon)) + return dev_err_probe(dev, PTR_ERR(data->hwmon), + "Failed to register hwmon device\n"); -disable: - cc2_disable(data); - - return ret; + return 0; } static void cc2_remove(struct i2c_client *client) diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c index 616bd1a5b864..1b9203b20d70 100644 --- a/drivers/hwmon/coretemp.c +++ b/drivers/hwmon/coretemp.c @@ -411,7 +411,7 @@ static ssize_t show_temp(struct device *dev, * Return it instead of reporting an error which doesn't * really help at all. */ - tdata->temp = tjmax - ((eax >> 16) & 0x7f) * 1000; + tdata->temp = tjmax - ((eax >> 16) & 0xff) * 1000; tdata->last_updated = jiffies; } diff --git a/drivers/hwmon/corsair-cpro.c b/drivers/hwmon/corsair-cpro.c index a284a02839fb..e1a7f7aa7f80 100644 --- a/drivers/hwmon/corsair-cpro.c +++ b/drivers/hwmon/corsair-cpro.c @@ -10,12 +10,15 @@ #include <linux/bitops.h> #include <linux/completion.h> +#include <linux/debugfs.h> #include <linux/hid.h> #include <linux/hwmon.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/mutex.h> +#include <linux/seq_file.h> #include <linux/slab.h> +#include <linux/spinlock.h> #include <linux/types.h> #define USB_VENDOR_ID_CORSAIR 0x1b1c @@ -27,6 +30,8 @@ #define LABEL_LENGTH 11 #define REQ_TIMEOUT 300 +#define CTL_GET_FW_VER 0x02 /* returns the firmware version in bytes 1-3 */ +#define CTL_GET_BL_VER 0x06 /* returns the bootloader version in bytes 1-2 */ #define CTL_GET_TMP_CNCT 0x10 /* * returns in bytes 1-4 for each temp sensor: * 0 not connected @@ -77,13 +82,19 @@ struct ccp_device { struct hid_device *hdev; struct device *hwmon_dev; + struct dentry *debugfs; + /* For reinitializing the completion below */ + spinlock_t wait_input_report_lock; struct completion wait_input_report; struct mutex mutex; /* whenever buffer is used, lock before send_usb_cmd */ + u8 *cmd_buffer; u8 *buffer; int target[6]; DECLARE_BITMAP(temp_cnct, NUM_TEMP_SENSORS); DECLARE_BITMAP(fan_cnct, NUM_FANS); char fan_label[6][LABEL_LENGTH]; + u8 firmware_ver[3]; + u8 bootloader_ver[2]; }; /* converts response error in buffer to errno */ @@ -111,15 +122,23 @@ static int send_usb_cmd(struct ccp_device *ccp, u8 command, u8 byte1, u8 byte2, unsigned long t; int ret; - memset(ccp->buffer, 0x00, OUT_BUFFER_SIZE); - ccp->buffer[0] = command; - ccp->buffer[1] = byte1; - ccp->buffer[2] = byte2; - ccp->buffer[3] = byte3; - + memset(ccp->cmd_buffer, 0x00, OUT_BUFFER_SIZE); + ccp->cmd_buffer[0] = command; + ccp->cmd_buffer[1] = byte1; + ccp->cmd_buffer[2] = byte2; + ccp->cmd_buffer[3] = byte3; + + /* + * Disable raw event parsing for a moment to safely reinitialize the + * completion. Reinit is done because hidraw could have triggered + * the raw event parsing and marked the ccp->wait_input_report + * completion as done. + */ + spin_lock_bh(&ccp->wait_input_report_lock); reinit_completion(&ccp->wait_input_report); + spin_unlock_bh(&ccp->wait_input_report_lock); - ret = hid_hw_output_report(ccp->hdev, ccp->buffer, OUT_BUFFER_SIZE); + ret = hid_hw_output_report(ccp->hdev, ccp->cmd_buffer, OUT_BUFFER_SIZE); if (ret < 0) return ret; @@ -135,11 +154,12 @@ static int ccp_raw_event(struct hid_device *hdev, struct hid_report *report, u8 struct ccp_device *ccp = hid_get_drvdata(hdev); /* only copy buffer when requested */ - if (completion_done(&ccp->wait_input_report)) - return 0; - - memcpy(ccp->buffer, data, min(IN_BUFFER_SIZE, size)); - complete(&ccp->wait_input_report); + spin_lock(&ccp->wait_input_report_lock); + if (!completion_done(&ccp->wait_input_report)) { + memcpy(ccp->buffer, data, min(IN_BUFFER_SIZE, size)); + complete_all(&ccp->wait_input_report); + } + spin_unlock(&ccp->wait_input_report_lock); return 0; } @@ -483,6 +503,83 @@ static int get_temp_cnct(struct ccp_device *ccp) return 0; } +/* read firmware version */ +static int get_fw_version(struct ccp_device *ccp) +{ + int ret; + + ret = send_usb_cmd(ccp, CTL_GET_FW_VER, 0, 0, 0); + if (ret) { + hid_notice(ccp->hdev, "Failed to read firmware version.\n"); + return ret; + } + ccp->firmware_ver[0] = ccp->buffer[1]; + ccp->firmware_ver[1] = ccp->buffer[2]; + ccp->firmware_ver[2] = ccp->buffer[3]; + + return 0; +} + +/* read bootloader version */ +static int get_bl_version(struct ccp_device *ccp) +{ + int ret; + + ret = send_usb_cmd(ccp, CTL_GET_BL_VER, 0, 0, 0); + if (ret) { + hid_notice(ccp->hdev, "Failed to read bootloader version.\n"); + return ret; + } + ccp->bootloader_ver[0] = ccp->buffer[1]; + ccp->bootloader_ver[1] = ccp->buffer[2]; + + return 0; +} + +static int firmware_show(struct seq_file *seqf, void *unused) +{ + struct ccp_device *ccp = seqf->private; + + seq_printf(seqf, "%d.%d.%d\n", + ccp->firmware_ver[0], + ccp->firmware_ver[1], + ccp->firmware_ver[2]); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(firmware); + +static int bootloader_show(struct seq_file *seqf, void *unused) +{ + struct ccp_device *ccp = seqf->private; + + seq_printf(seqf, "%d.%d\n", + ccp->bootloader_ver[0], + ccp->bootloader_ver[1]); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(bootloader); + +static void ccp_debugfs_init(struct ccp_device *ccp) +{ + char name[32]; + int ret; + + scnprintf(name, sizeof(name), "corsaircpro-%s", dev_name(&ccp->hdev->dev)); + ccp->debugfs = debugfs_create_dir(name, NULL); + + ret = get_fw_version(ccp); + if (!ret) + debugfs_create_file("firmware_version", 0444, + ccp->debugfs, ccp, &firmware_fops); + + ret = get_bl_version(ccp); + if (!ret) + debugfs_create_file("bootloader_version", 0444, + ccp->debugfs, ccp, &bootloader_fops); +} + static int ccp_probe(struct hid_device *hdev, const struct hid_device_id *id) { struct ccp_device *ccp; @@ -492,7 +589,11 @@ static int ccp_probe(struct hid_device *hdev, const struct hid_device_id *id) if (!ccp) return -ENOMEM; - ccp->buffer = devm_kmalloc(&hdev->dev, OUT_BUFFER_SIZE, GFP_KERNEL); + ccp->cmd_buffer = devm_kmalloc(&hdev->dev, OUT_BUFFER_SIZE, GFP_KERNEL); + if (!ccp->cmd_buffer) + return -ENOMEM; + + ccp->buffer = devm_kmalloc(&hdev->dev, IN_BUFFER_SIZE, GFP_KERNEL); if (!ccp->buffer) return -ENOMEM; @@ -510,7 +611,9 @@ static int ccp_probe(struct hid_device *hdev, const struct hid_device_id *id) ccp->hdev = hdev; hid_set_drvdata(hdev, ccp); + mutex_init(&ccp->mutex); + spin_lock_init(&ccp->wait_input_report_lock); init_completion(&ccp->wait_input_report); hid_device_io_start(hdev); @@ -523,6 +626,9 @@ static int ccp_probe(struct hid_device *hdev, const struct hid_device_id *id) ret = get_fan_cnct(ccp); if (ret) goto out_hw_close; + + ccp_debugfs_init(ccp); + ccp->hwmon_dev = hwmon_device_register_with_info(&hdev->dev, "corsaircpro", ccp, &ccp_chip_info, NULL); if (IS_ERR(ccp->hwmon_dev)) { @@ -543,6 +649,7 @@ static void ccp_remove(struct hid_device *hdev) { struct ccp_device *ccp = hid_get_drvdata(hdev); + debugfs_remove_recursive(ccp->debugfs); hwmon_device_unregister(ccp->hwmon_dev); hid_hw_close(hdev); hid_hw_stop(hdev); @@ -563,6 +670,7 @@ static struct hid_driver ccp_driver = { }; MODULE_DEVICE_TABLE(hid, ccp_devices); +MODULE_DESCRIPTION("Corsair Commander Pro controller driver"); MODULE_LICENSE("GPL"); static int __init ccp_init(void) diff --git a/drivers/hwmon/corsair-psu.c b/drivers/hwmon/corsair-psu.c index 2c7c92272fe3..f8f22b8a67cd 100644 --- a/drivers/hwmon/corsair-psu.c +++ b/drivers/hwmon/corsair-psu.c @@ -875,15 +875,16 @@ static const struct hid_device_id corsairpsu_idtable[] = { { HID_USB_DEVICE(0x1b1c, 0x1c04) }, /* Corsair HX650i */ { HID_USB_DEVICE(0x1b1c, 0x1c05) }, /* Corsair HX750i */ { HID_USB_DEVICE(0x1b1c, 0x1c06) }, /* Corsair HX850i */ - { HID_USB_DEVICE(0x1b1c, 0x1c07) }, /* Corsair HX1000i Series 2022 */ - { HID_USB_DEVICE(0x1b1c, 0x1c08) }, /* Corsair HX1200i */ + { HID_USB_DEVICE(0x1b1c, 0x1c07) }, /* Corsair HX1000i Legacy */ + { HID_USB_DEVICE(0x1b1c, 0x1c08) }, /* Corsair HX1200i Legacy */ { HID_USB_DEVICE(0x1b1c, 0x1c09) }, /* Corsair RM550i */ { HID_USB_DEVICE(0x1b1c, 0x1c0a) }, /* Corsair RM650i */ { HID_USB_DEVICE(0x1b1c, 0x1c0b) }, /* Corsair RM750i */ { HID_USB_DEVICE(0x1b1c, 0x1c0c) }, /* Corsair RM850i */ { HID_USB_DEVICE(0x1b1c, 0x1c0d) }, /* Corsair RM1000i */ { HID_USB_DEVICE(0x1b1c, 0x1c1e) }, /* Corsair HX1000i Series 2023 */ - { HID_USB_DEVICE(0x1b1c, 0x1c1f) }, /* Corsair HX1500i Series 2022 and 2023 */ + { HID_USB_DEVICE(0x1b1c, 0x1c1f) }, /* Corsair HX1500i Legacy and Series 2023 */ + { HID_USB_DEVICE(0x1b1c, 0x1c23) }, /* Corsair HX1200i Series 2023 */ { }, }; MODULE_DEVICE_TABLE(hid, corsairpsu_idtable); diff --git a/drivers/hwmon/cros_ec_hwmon.c b/drivers/hwmon/cros_ec_hwmon.c new file mode 100644 index 000000000000..9991c3fa020a --- /dev/null +++ b/drivers/hwmon/cros_ec_hwmon.c @@ -0,0 +1,284 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * ChromeOS EC driver for hwmon + * + * Copyright (C) 2024 Thomas Weißschuh <linux@weissschuh.net> + */ + +#include <linux/device.h> +#include <linux/hwmon.h> +#include <linux/mod_devicetable.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/platform_data/cros_ec_commands.h> +#include <linux/platform_data/cros_ec_proto.h> +#include <linux/types.h> +#include <linux/units.h> + +#define DRV_NAME "cros-ec-hwmon" + +struct cros_ec_hwmon_priv { + struct cros_ec_device *cros_ec; + const char *temp_sensor_names[EC_TEMP_SENSOR_ENTRIES + EC_TEMP_SENSOR_B_ENTRIES]; + u8 usable_fans; +}; + +static int cros_ec_hwmon_read_fan_speed(struct cros_ec_device *cros_ec, u8 index, u16 *speed) +{ + int ret; + __le16 __speed; + + ret = cros_ec_cmd_readmem(cros_ec, EC_MEMMAP_FAN + index * 2, 2, &__speed); + if (ret < 0) + return ret; + + *speed = le16_to_cpu(__speed); + return 0; +} + +static int cros_ec_hwmon_read_temp(struct cros_ec_device *cros_ec, u8 index, u8 *temp) +{ + unsigned int offset; + int ret; + + if (index < EC_TEMP_SENSOR_ENTRIES) + offset = EC_MEMMAP_TEMP_SENSOR + index; + else + offset = EC_MEMMAP_TEMP_SENSOR_B + index - EC_TEMP_SENSOR_ENTRIES; + + ret = cros_ec_cmd_readmem(cros_ec, offset, 1, temp); + if (ret < 0) + return ret; + return 0; +} + +static bool cros_ec_hwmon_is_error_fan(u16 speed) +{ + return speed == EC_FAN_SPEED_NOT_PRESENT || speed == EC_FAN_SPEED_STALLED; +} + +static bool cros_ec_hwmon_is_error_temp(u8 temp) +{ + return temp == EC_TEMP_SENSOR_NOT_PRESENT || + temp == EC_TEMP_SENSOR_ERROR || + temp == EC_TEMP_SENSOR_NOT_POWERED || + temp == EC_TEMP_SENSOR_NOT_CALIBRATED; +} + +static long cros_ec_hwmon_temp_to_millicelsius(u8 temp) +{ + return kelvin_to_millicelsius((((long)temp) + EC_TEMP_SENSOR_OFFSET)); +} + +static int cros_ec_hwmon_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + struct cros_ec_hwmon_priv *priv = dev_get_drvdata(dev); + int ret = -EOPNOTSUPP; + u16 speed; + u8 temp; + + if (type == hwmon_fan) { + if (attr == hwmon_fan_input) { + ret = cros_ec_hwmon_read_fan_speed(priv->cros_ec, channel, &speed); + if (ret == 0) { + if (cros_ec_hwmon_is_error_fan(speed)) + ret = -ENODATA; + else + *val = speed; + } + } else if (attr == hwmon_fan_fault) { + ret = cros_ec_hwmon_read_fan_speed(priv->cros_ec, channel, &speed); + if (ret == 0) + *val = cros_ec_hwmon_is_error_fan(speed); + } + } else if (type == hwmon_temp) { + if (attr == hwmon_temp_input) { + ret = cros_ec_hwmon_read_temp(priv->cros_ec, channel, &temp); + if (ret == 0) { + if (cros_ec_hwmon_is_error_temp(temp)) + ret = -ENODATA; + else + *val = cros_ec_hwmon_temp_to_millicelsius(temp); + } + } else if (attr == hwmon_temp_fault) { + ret = cros_ec_hwmon_read_temp(priv->cros_ec, channel, &temp); + if (ret == 0) + *val = cros_ec_hwmon_is_error_temp(temp); + } + } + + return ret; +} + +static int cros_ec_hwmon_read_string(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, const char **str) +{ + struct cros_ec_hwmon_priv *priv = dev_get_drvdata(dev); + + if (type == hwmon_temp && attr == hwmon_temp_label) { + *str = priv->temp_sensor_names[channel]; + return 0; + } + + return -EOPNOTSUPP; +} + +static umode_t cros_ec_hwmon_is_visible(const void *data, enum hwmon_sensor_types type, + u32 attr, int channel) +{ + const struct cros_ec_hwmon_priv *priv = data; + + if (type == hwmon_fan) { + if (priv->usable_fans & BIT(channel)) + return 0444; + } else if (type == hwmon_temp) { + if (priv->temp_sensor_names[channel]) + return 0444; + } + + return 0; +} + +static const struct hwmon_channel_info * const cros_ec_hwmon_info[] = { + HWMON_CHANNEL_INFO(chip, HWMON_C_REGISTER_TZ), + HWMON_CHANNEL_INFO(fan, + HWMON_F_INPUT | HWMON_F_FAULT, + HWMON_F_INPUT | HWMON_F_FAULT, + HWMON_F_INPUT | HWMON_F_FAULT, + HWMON_F_INPUT | HWMON_F_FAULT), + HWMON_CHANNEL_INFO(temp, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_LABEL), + NULL +}; + +static const struct hwmon_ops cros_ec_hwmon_ops = { + .read = cros_ec_hwmon_read, + .read_string = cros_ec_hwmon_read_string, + .is_visible = cros_ec_hwmon_is_visible, +}; + +static const struct hwmon_chip_info cros_ec_hwmon_chip_info = { + .ops = &cros_ec_hwmon_ops, + .info = cros_ec_hwmon_info, +}; + +static void cros_ec_hwmon_probe_temp_sensors(struct device *dev, struct cros_ec_hwmon_priv *priv, + u8 thermal_version) +{ + struct ec_params_temp_sensor_get_info req = {}; + struct ec_response_temp_sensor_get_info resp; + size_t candidates, i, sensor_name_size; + int ret; + u8 temp; + + if (thermal_version < 2) + candidates = EC_TEMP_SENSOR_ENTRIES; + else + candidates = ARRAY_SIZE(priv->temp_sensor_names); + + for (i = 0; i < candidates; i++) { + if (cros_ec_hwmon_read_temp(priv->cros_ec, i, &temp) < 0) + continue; + + if (temp == EC_TEMP_SENSOR_NOT_PRESENT) + continue; + + req.id = i; + ret = cros_ec_cmd(priv->cros_ec, 0, EC_CMD_TEMP_SENSOR_GET_INFO, + &req, sizeof(req), &resp, sizeof(resp)); + if (ret < 0) + continue; + + sensor_name_size = strnlen(resp.sensor_name, sizeof(resp.sensor_name)); + priv->temp_sensor_names[i] = devm_kasprintf(dev, GFP_KERNEL, "%.*s", + (int)sensor_name_size, + resp.sensor_name); + } +} + +static void cros_ec_hwmon_probe_fans(struct cros_ec_hwmon_priv *priv) +{ + u16 speed; + size_t i; + int ret; + + for (i = 0; i < EC_FAN_SPEED_ENTRIES; i++) { + ret = cros_ec_hwmon_read_fan_speed(priv->cros_ec, i, &speed); + if (ret == 0 && speed != EC_FAN_SPEED_NOT_PRESENT) + priv->usable_fans |= BIT(i); + } +} + +static int cros_ec_hwmon_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct cros_ec_dev *ec_dev = dev_get_drvdata(dev->parent); + struct cros_ec_device *cros_ec = ec_dev->ec_dev; + struct cros_ec_hwmon_priv *priv; + struct device *hwmon_dev; + u8 thermal_version; + int ret; + + ret = cros_ec_cmd_readmem(cros_ec, EC_MEMMAP_THERMAL_VERSION, 1, &thermal_version); + if (ret < 0) + return ret; + + /* Covers both fan and temp sensors */ + if (thermal_version == 0) + return -ENODEV; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->cros_ec = cros_ec; + + cros_ec_hwmon_probe_temp_sensors(dev, priv, thermal_version); + cros_ec_hwmon_probe_fans(priv); + + hwmon_dev = devm_hwmon_device_register_with_info(dev, "cros_ec", priv, + &cros_ec_hwmon_chip_info, NULL); + + return PTR_ERR_OR_ZERO(hwmon_dev); +} + +static const struct platform_device_id cros_ec_hwmon_id[] = { + { DRV_NAME, 0 }, + {} +}; + +static struct platform_driver cros_ec_hwmon_driver = { + .driver.name = DRV_NAME, + .probe = cros_ec_hwmon_probe, + .id_table = cros_ec_hwmon_id, +}; +module_platform_driver(cros_ec_hwmon_driver); + +MODULE_DEVICE_TABLE(platform, cros_ec_hwmon_id); +MODULE_DESCRIPTION("ChromeOS EC Hardware Monitoring Driver"); +MODULE_AUTHOR("Thomas Weißschuh <linux@weissschuh.net"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/da9052-hwmon.c b/drivers/hwmon/da9052-hwmon.c index 2bd7ae8100d7..588e96790850 100644 --- a/drivers/hwmon/da9052-hwmon.c +++ b/drivers/hwmon/da9052-hwmon.c @@ -26,7 +26,6 @@ struct da9052_hwmon { struct mutex hwmon_lock; bool tsi_as_adc; int tsiref_mv; - struct regulator *tsiref; struct completion tsidone; }; @@ -397,7 +396,7 @@ static int da9052_hwmon_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct da9052_hwmon *hwmon; struct device *hwmon_dev; - int err; + int err, tsiref_uv; hwmon = devm_kzalloc(dev, sizeof(struct da9052_hwmon), GFP_KERNEL); if (!hwmon) @@ -414,32 +413,20 @@ static int da9052_hwmon_probe(struct platform_device *pdev) device_property_read_bool(pdev->dev.parent, "dlg,tsi-as-adc"); if (hwmon->tsi_as_adc) { - hwmon->tsiref = devm_regulator_get(pdev->dev.parent, "tsiref"); - if (IS_ERR(hwmon->tsiref)) { - err = PTR_ERR(hwmon->tsiref); - dev_err(&pdev->dev, "failed to get tsiref: %d", err); - return err; - } - - err = regulator_enable(hwmon->tsiref); - if (err) - return err; - - hwmon->tsiref_mv = regulator_get_voltage(hwmon->tsiref); - if (hwmon->tsiref_mv < 0) { - err = hwmon->tsiref_mv; - goto exit_regulator; - } + tsiref_uv = devm_regulator_get_enable_read_voltage(dev->parent, + "tsiref"); + if (tsiref_uv < 0) + return dev_err_probe(dev, tsiref_uv, + "failed to get tsiref voltage\n"); /* convert from microvolt (DT) to millivolt (hwmon) */ - hwmon->tsiref_mv /= 1000; + hwmon->tsiref_mv = tsiref_uv / 1000; /* TSIREF limits from datasheet */ if (hwmon->tsiref_mv < 1800 || hwmon->tsiref_mv > 2600) { dev_err(hwmon->da9052->dev, "invalid TSIREF voltage: %d", hwmon->tsiref_mv); - err = -ENXIO; - goto exit_regulator; + return -ENXIO; } /* disable touchscreen features */ @@ -456,7 +443,7 @@ static int da9052_hwmon_probe(struct platform_device *pdev) if (err) { dev_err(&pdev->dev, "Failed to register TSIRDY IRQ: %d", err); - goto exit_regulator; + return err; } } @@ -472,9 +459,6 @@ static int da9052_hwmon_probe(struct platform_device *pdev) exit_irq: if (hwmon->tsi_as_adc) da9052_free_irq(hwmon->da9052, DA9052_IRQ_TSIREADY, hwmon); -exit_regulator: - if (hwmon->tsiref) - regulator_disable(hwmon->tsiref); return err; } @@ -483,15 +467,13 @@ static void da9052_hwmon_remove(struct platform_device *pdev) { struct da9052_hwmon *hwmon = platform_get_drvdata(pdev); - if (hwmon->tsi_as_adc) { + if (hwmon->tsi_as_adc) da9052_free_irq(hwmon->da9052, DA9052_IRQ_TSIREADY, hwmon); - regulator_disable(hwmon->tsiref); - } } static struct platform_driver da9052_hwmon_driver = { .probe = da9052_hwmon_probe, - .remove_new = da9052_hwmon_remove, + .remove = da9052_hwmon_remove, .driver = { .name = "da9052-hwmon", }, diff --git a/drivers/hwmon/dell-smm-hwmon.c b/drivers/hwmon/dell-smm-hwmon.c index efcf78673e74..79e5606e6d2f 100644 --- a/drivers/hwmon/dell-smm-hwmon.c +++ b/drivers/hwmon/dell-smm-hwmon.c @@ -38,7 +38,7 @@ #include <linux/wmi.h> #include <linux/i8k.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #define I8K_SMM_FN_STATUS 0x0025 #define I8K_SMM_POWER_STATUS 0x0069 @@ -73,7 +73,7 @@ #define DELL_SMM_LEGACY_EXECUTE 0x1 #define DELL_SMM_NO_TEMP 10 -#define DELL_SMM_NO_FANS 3 +#define DELL_SMM_NO_FANS 4 struct smm_regs { unsigned int eax; @@ -1074,11 +1074,14 @@ static const struct hwmon_channel_info * const dell_smm_info[] = { HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MIN | HWMON_F_MAX | HWMON_F_TARGET, HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MIN | HWMON_F_MAX | + HWMON_F_TARGET, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MIN | HWMON_F_MAX | HWMON_F_TARGET ), HWMON_CHANNEL_INFO(pwm, HWMON_PWM_INPUT | HWMON_PWM_ENABLE, HWMON_PWM_INPUT, + HWMON_PWM_INPUT, HWMON_PWM_INPUT ), NULL @@ -1215,6 +1218,13 @@ static const struct dmi_system_id i8k_dmi_table[] __initconst = { }, }, { + .ident = "Dell G5 5505", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "G5 5505"), + }, + }, + { .ident = "Dell Inspiron", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer"), @@ -1257,6 +1267,13 @@ static const struct dmi_system_id i8k_dmi_table[] __initconst = { }, }, { + .ident = "Dell OptiPlex 7060", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "OptiPlex 7060"), + }, + }, + { .ident = "Dell Precision", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), @@ -1475,6 +1492,14 @@ static const struct dmi_system_id i8k_whitelist_fan_control[] __initconst = { .driver_data = (void *)&i8k_fan_control_data[I8K_FAN_34A3_35A3], }, { + .ident = "Dell Latitude 7320", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Latitude 7320"), + }, + .driver_data = (void *)&i8k_fan_control_data[I8K_FAN_30A3_31A3], + }, + { .ident = "Dell Latitude E6440", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), @@ -1507,6 +1532,14 @@ static const struct dmi_system_id i8k_whitelist_fan_control[] __initconst = { .driver_data = (void *)&i8k_fan_control_data[I8K_FAN_34A3_35A3], }, { + .ident = "Dell Precision 7540", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Precision 7540"), + }, + .driver_data = (void *)&i8k_fan_control_data[I8K_FAN_34A3_35A3], + }, + { .ident = "Dell XPS 13 7390", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), @@ -1515,6 +1548,14 @@ static const struct dmi_system_id i8k_whitelist_fan_control[] __initconst = { .driver_data = (void *)&i8k_fan_control_data[I8K_FAN_34A3_35A3], }, { + .ident = "Dell XPS 13 9370", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "XPS 13 9370"), + }, + .driver_data = (void *)&i8k_fan_control_data[I8K_FAN_30A3_31A3], + }, + { .ident = "Dell Optiplex 7000", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), @@ -1530,6 +1571,14 @@ static const struct dmi_system_id i8k_whitelist_fan_control[] __initconst = { }, .driver_data = (void *)&i8k_fan_control_data[I8K_FAN_30A3_31A3], }, + { + .ident = "Dell G15 5511", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Dell G15 5511"), + }, + .driver_data = (void *)&i8k_fan_control_data[I8K_FAN_30A3_31A3], + }, { } }; diff --git a/drivers/hwmon/dme1737.c b/drivers/hwmon/dme1737.c index 3dcef221041d..3d4057309950 100644 --- a/drivers/hwmon/dme1737.c +++ b/drivers/hwmon/dme1737.c @@ -2461,8 +2461,6 @@ static int dme1737_i2c_detect(struct i2c_client *client, return 0; } -static const struct i2c_device_id dme1737_id[]; - static int dme1737_i2c_probe(struct i2c_client *client) { struct dme1737_data *data; @@ -2474,7 +2472,7 @@ static int dme1737_i2c_probe(struct i2c_client *client) return -ENOMEM; i2c_set_clientdata(client, data); - data->type = i2c_match_id(dme1737_id, client)->driver_data; + data->type = (uintptr_t)i2c_get_match_data(client); data->client = client; data->name = client->name; mutex_init(&data->update_lock); @@ -2723,7 +2721,7 @@ static struct platform_driver dme1737_isa_driver = { .name = "dme1737", }, .probe = dme1737_isa_probe, - .remove_new = dme1737_isa_remove, + .remove = dme1737_isa_remove, }; /* --------------------------------------------------------------------- diff --git a/drivers/hwmon/drivetemp.c b/drivers/hwmon/drivetemp.c index 6bdd21aa005a..291d91f68646 100644 --- a/drivers/hwmon/drivetemp.c +++ b/drivers/hwmon/drivetemp.c @@ -165,6 +165,7 @@ static int drivetemp_scsi_command(struct drivetemp_data *st, { u8 scsi_cmd[MAX_COMMAND_SIZE]; enum req_op op; + int err; memset(scsi_cmd, 0, sizeof(scsi_cmd)); scsi_cmd[0] = ATA_16; @@ -192,8 +193,11 @@ static int drivetemp_scsi_command(struct drivetemp_data *st, scsi_cmd[12] = lba_high; scsi_cmd[14] = ata_command; - return scsi_execute_cmd(st->sdev, scsi_cmd, op, st->smartdata, - ATA_SECT_SIZE, HZ, 5, NULL); + err = scsi_execute_cmd(st->sdev, scsi_cmd, op, st->smartdata, + ATA_SECT_SIZE, 10 * HZ, 5, NULL); + if (err > 0) + err = -EIO; + return err; } static int drivetemp_ata_command(struct drivetemp_data *st, u8 feature, diff --git a/drivers/hwmon/ds1621.c b/drivers/hwmon/ds1621.c index bffbc8040171..42ec34cb8a5f 100644 --- a/drivers/hwmon/ds1621.c +++ b/drivers/hwmon/ds1621.c @@ -342,8 +342,6 @@ static const struct attribute_group ds1621_group = { }; __ATTRIBUTE_GROUPS(ds1621); -static const struct i2c_device_id ds1621_id[]; - static int ds1621_probe(struct i2c_client *client) { struct ds1621_data *data; @@ -356,7 +354,7 @@ static int ds1621_probe(struct i2c_client *client) mutex_init(&data->update_lock); - data->kind = i2c_match_id(ds1621_id, client)->driver_data; + data->kind = (uintptr_t)i2c_get_match_data(client); data->client = client; /* Initialize the DS1621 chip */ diff --git a/drivers/hwmon/ds620.c b/drivers/hwmon/ds620.c index 4fc4df012fac..ce397042d90b 100644 --- a/drivers/hwmon/ds620.c +++ b/drivers/hwmon/ds620.c @@ -233,7 +233,7 @@ static int ds620_probe(struct i2c_client *client) } static const struct i2c_device_id ds620_id[] = { - {"ds620", 0}, + {"ds620"}, {} }; diff --git a/drivers/hwmon/emc1403.c b/drivers/hwmon/emc1403.c index d370efd6f986..eca33220d34a 100644 --- a/drivers/hwmon/emc1403.c +++ b/drivers/hwmon/emc1403.c @@ -19,302 +19,56 @@ #include <linux/sysfs.h> #include <linux/mutex.h> #include <linux/regmap.h> +#include <linux/util_macros.h> #define THERMAL_PID_REG 0xfd #define THERMAL_SMSC_ID_REG 0xfe #define THERMAL_REVISION_REG 0xff -enum emc1403_chip { emc1402, emc1403, emc1404 }; +enum emc1403_chip { emc1402, emc1403, emc1404, emc1428 }; struct thermal_data { + enum emc1403_chip chip; struct regmap *regmap; struct mutex mutex; - const struct attribute_group *groups[4]; }; -static ssize_t temp_show(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t power_state_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct sensor_device_attribute *sda = to_sensor_dev_attr(attr); struct thermal_data *data = dev_get_drvdata(dev); unsigned int val; int retval; - retval = regmap_read(data->regmap, sda->index, &val); + retval = regmap_read(data->regmap, 0x03, &val); if (retval < 0) return retval; - return sprintf(buf, "%d000\n", val); + return sprintf(buf, "%d\n", !!(val & BIT(6))); } -static ssize_t bit_show(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t power_state_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { - struct sensor_device_attribute_2 *sda = to_sensor_dev_attr_2(attr); - struct thermal_data *data = dev_get_drvdata(dev); - unsigned int val; - int retval; - - retval = regmap_read(data->regmap, sda->nr, &val); - if (retval < 0) - return retval; - return sprintf(buf, "%d\n", !!(val & sda->index)); -} - -static ssize_t temp_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - struct sensor_device_attribute *sda = to_sensor_dev_attr(attr); struct thermal_data *data = dev_get_drvdata(dev); unsigned long val; int retval; if (kstrtoul(buf, 10, &val)) return -EINVAL; - retval = regmap_write(data->regmap, sda->index, - DIV_ROUND_CLOSEST(val, 1000)); - if (retval < 0) - return retval; - return count; -} -static ssize_t bit_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - struct sensor_device_attribute_2 *sda = to_sensor_dev_attr_2(attr); - struct thermal_data *data = dev_get_drvdata(dev); - unsigned long val; - int retval; - - if (kstrtoul(buf, 10, &val)) - return -EINVAL; - - retval = regmap_update_bits(data->regmap, sda->nr, sda->index, - val ? sda->index : 0); + retval = regmap_update_bits(data->regmap, 0x03, BIT(6), + val ? BIT(6) : 0); if (retval < 0) return retval; return count; } -static ssize_t show_hyst_common(struct device *dev, - struct device_attribute *attr, char *buf, - bool is_min) -{ - struct sensor_device_attribute *sda = to_sensor_dev_attr(attr); - struct thermal_data *data = dev_get_drvdata(dev); - struct regmap *regmap = data->regmap; - unsigned int limit; - unsigned int hyst; - int retval; - - retval = regmap_read(regmap, sda->index, &limit); - if (retval < 0) - return retval; - - retval = regmap_read(regmap, 0x21, &hyst); - if (retval < 0) - return retval; - - return sprintf(buf, "%d000\n", is_min ? limit + hyst : limit - hyst); -} - -static ssize_t hyst_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - return show_hyst_common(dev, attr, buf, false); -} - -static ssize_t min_hyst_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return show_hyst_common(dev, attr, buf, true); -} - -static ssize_t hyst_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - struct sensor_device_attribute *sda = to_sensor_dev_attr(attr); - struct thermal_data *data = dev_get_drvdata(dev); - struct regmap *regmap = data->regmap; - unsigned int limit; - int retval; - int hyst; - unsigned long val; - - if (kstrtoul(buf, 10, &val)) - return -EINVAL; - - mutex_lock(&data->mutex); - retval = regmap_read(regmap, sda->index, &limit); - if (retval < 0) - goto fail; - - hyst = limit * 1000 - val; - hyst = clamp_val(DIV_ROUND_CLOSEST(hyst, 1000), 0, 255); - retval = regmap_write(regmap, 0x21, hyst); - if (retval == 0) - retval = count; -fail: - mutex_unlock(&data->mutex); - return retval; -} - -/* - * Sensors. We pass the actual i2c register to the methods. - */ - -static SENSOR_DEVICE_ATTR_RW(temp1_min, temp, 0x06); -static SENSOR_DEVICE_ATTR_RW(temp1_max, temp, 0x05); -static SENSOR_DEVICE_ATTR_RW(temp1_crit, temp, 0x20); -static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0x00); -static SENSOR_DEVICE_ATTR_2_RO(temp1_min_alarm, bit, 0x36, 0x01); -static SENSOR_DEVICE_ATTR_2_RO(temp1_max_alarm, bit, 0x35, 0x01); -static SENSOR_DEVICE_ATTR_2_RO(temp1_crit_alarm, bit, 0x37, 0x01); -static SENSOR_DEVICE_ATTR_RO(temp1_min_hyst, min_hyst, 0x06); -static SENSOR_DEVICE_ATTR_RO(temp1_max_hyst, hyst, 0x05); -static SENSOR_DEVICE_ATTR_RW(temp1_crit_hyst, hyst, 0x20); - -static SENSOR_DEVICE_ATTR_RW(temp2_min, temp, 0x08); -static SENSOR_DEVICE_ATTR_RW(temp2_max, temp, 0x07); -static SENSOR_DEVICE_ATTR_RW(temp2_crit, temp, 0x19); -static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 0x01); -static SENSOR_DEVICE_ATTR_2_RO(temp2_fault, bit, 0x1b, 0x02); -static SENSOR_DEVICE_ATTR_2_RO(temp2_min_alarm, bit, 0x36, 0x02); -static SENSOR_DEVICE_ATTR_2_RO(temp2_max_alarm, bit, 0x35, 0x02); -static SENSOR_DEVICE_ATTR_2_RO(temp2_crit_alarm, bit, 0x37, 0x02); -static SENSOR_DEVICE_ATTR_RO(temp2_min_hyst, min_hyst, 0x08); -static SENSOR_DEVICE_ATTR_RO(temp2_max_hyst, hyst, 0x07); -static SENSOR_DEVICE_ATTR_RO(temp2_crit_hyst, hyst, 0x19); - -static SENSOR_DEVICE_ATTR_RW(temp3_min, temp, 0x16); -static SENSOR_DEVICE_ATTR_RW(temp3_max, temp, 0x15); -static SENSOR_DEVICE_ATTR_RW(temp3_crit, temp, 0x1A); -static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 0x23); -static SENSOR_DEVICE_ATTR_2_RO(temp3_fault, bit, 0x1b, 0x04); -static SENSOR_DEVICE_ATTR_2_RO(temp3_min_alarm, bit, 0x36, 0x04); -static SENSOR_DEVICE_ATTR_2_RO(temp3_max_alarm, bit, 0x35, 0x04); -static SENSOR_DEVICE_ATTR_2_RO(temp3_crit_alarm, bit, 0x37, 0x04); -static SENSOR_DEVICE_ATTR_RO(temp3_min_hyst, min_hyst, 0x16); -static SENSOR_DEVICE_ATTR_RO(temp3_max_hyst, hyst, 0x15); -static SENSOR_DEVICE_ATTR_RO(temp3_crit_hyst, hyst, 0x1A); - -static SENSOR_DEVICE_ATTR_RW(temp4_min, temp, 0x2D); -static SENSOR_DEVICE_ATTR_RW(temp4_max, temp, 0x2C); -static SENSOR_DEVICE_ATTR_RW(temp4_crit, temp, 0x30); -static SENSOR_DEVICE_ATTR_RO(temp4_input, temp, 0x2A); -static SENSOR_DEVICE_ATTR_2_RO(temp4_fault, bit, 0x1b, 0x08); -static SENSOR_DEVICE_ATTR_2_RO(temp4_min_alarm, bit, 0x36, 0x08); -static SENSOR_DEVICE_ATTR_2_RO(temp4_max_alarm, bit, 0x35, 0x08); -static SENSOR_DEVICE_ATTR_2_RO(temp4_crit_alarm, bit, 0x37, 0x08); -static SENSOR_DEVICE_ATTR_RO(temp4_min_hyst, min_hyst, 0x2D); -static SENSOR_DEVICE_ATTR_RO(temp4_max_hyst, hyst, 0x2C); -static SENSOR_DEVICE_ATTR_RO(temp4_crit_hyst, hyst, 0x30); - -static SENSOR_DEVICE_ATTR_2_RW(power_state, bit, 0x03, 0x40); - -static struct attribute *emc1402_attrs[] = { - &sensor_dev_attr_temp1_min.dev_attr.attr, - &sensor_dev_attr_temp1_max.dev_attr.attr, - &sensor_dev_attr_temp1_crit.dev_attr.attr, - &sensor_dev_attr_temp1_input.dev_attr.attr, - &sensor_dev_attr_temp1_min_hyst.dev_attr.attr, - &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, - &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr, - - &sensor_dev_attr_temp2_min.dev_attr.attr, - &sensor_dev_attr_temp2_max.dev_attr.attr, - &sensor_dev_attr_temp2_crit.dev_attr.attr, - &sensor_dev_attr_temp2_input.dev_attr.attr, - &sensor_dev_attr_temp2_min_hyst.dev_attr.attr, - &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, - &sensor_dev_attr_temp2_crit_hyst.dev_attr.attr, - - &sensor_dev_attr_power_state.dev_attr.attr, - NULL -}; - -static const struct attribute_group emc1402_group = { - .attrs = emc1402_attrs, -}; +static DEVICE_ATTR_RW(power_state); static struct attribute *emc1403_attrs[] = { - &sensor_dev_attr_temp1_min_alarm.dev_attr.attr, - &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr, - - &sensor_dev_attr_temp2_fault.dev_attr.attr, - &sensor_dev_attr_temp2_min_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr, - - &sensor_dev_attr_temp3_min.dev_attr.attr, - &sensor_dev_attr_temp3_max.dev_attr.attr, - &sensor_dev_attr_temp3_crit.dev_attr.attr, - &sensor_dev_attr_temp3_input.dev_attr.attr, - &sensor_dev_attr_temp3_fault.dev_attr.attr, - &sensor_dev_attr_temp3_min_alarm.dev_attr.attr, - &sensor_dev_attr_temp3_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp3_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp3_min_hyst.dev_attr.attr, - &sensor_dev_attr_temp3_max_hyst.dev_attr.attr, - &sensor_dev_attr_temp3_crit_hyst.dev_attr.attr, - NULL -}; - -static const struct attribute_group emc1403_group = { - .attrs = emc1403_attrs, -}; - -static struct attribute *emc1404_attrs[] = { - &sensor_dev_attr_temp4_min.dev_attr.attr, - &sensor_dev_attr_temp4_max.dev_attr.attr, - &sensor_dev_attr_temp4_crit.dev_attr.attr, - &sensor_dev_attr_temp4_input.dev_attr.attr, - &sensor_dev_attr_temp4_fault.dev_attr.attr, - &sensor_dev_attr_temp4_min_alarm.dev_attr.attr, - &sensor_dev_attr_temp4_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp4_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp4_min_hyst.dev_attr.attr, - &sensor_dev_attr_temp4_max_hyst.dev_attr.attr, - &sensor_dev_attr_temp4_crit_hyst.dev_attr.attr, + &dev_attr_power_state.attr, NULL }; - -static const struct attribute_group emc1404_group = { - .attrs = emc1404_attrs, -}; - -/* - * EMC14x2 uses a different register and different bits to report alarm and - * fault status. For simplicity, provide a separate attribute group for this - * chip series. - * Since we can not re-use the same attribute names, create a separate attribute - * array. - */ -static struct sensor_device_attribute_2 emc1402_alarms[] = { - SENSOR_ATTR_2_RO(temp1_min_alarm, bit, 0x02, 0x20), - SENSOR_ATTR_2_RO(temp1_max_alarm, bit, 0x02, 0x40), - SENSOR_ATTR_2_RO(temp1_crit_alarm, bit, 0x02, 0x01), - - SENSOR_ATTR_2_RO(temp2_fault, bit, 0x02, 0x04), - SENSOR_ATTR_2_RO(temp2_min_alarm, bit, 0x02, 0x08), - SENSOR_ATTR_2_RO(temp2_max_alarm, bit, 0x02, 0x10), - SENSOR_ATTR_2_RO(temp2_crit_alarm, bit, 0x02, 0x02), -}; - -static struct attribute *emc1402_alarm_attrs[] = { - &emc1402_alarms[0].dev_attr.attr, - &emc1402_alarms[1].dev_attr.attr, - &emc1402_alarms[2].dev_attr.attr, - &emc1402_alarms[3].dev_attr.attr, - &emc1402_alarms[4].dev_attr.attr, - &emc1402_alarms[5].dev_attr.attr, - &emc1402_alarms[6].dev_attr.attr, - NULL, -}; - -static const struct attribute_group emc1402_alarm_group = { - .attrs = emc1402_alarm_attrs, -}; +ATTRIBUTE_GROUPS(emc1403); static int emc1403_detect(struct i2c_client *client, struct i2c_board_info *info) @@ -346,6 +100,12 @@ static int emc1403_detect(struct i2c_client *client, case 0x27: strscpy(info->type, "emc1424", I2C_NAME_SIZE); break; + case 0x29: + strscpy(info->type, "emc1428", I2C_NAME_SIZE); + break; + case 0x59: + strscpy(info->type, "emc1438", I2C_NAME_SIZE); + break; case 0x60: strscpy(info->type, "emc1442", I2C_NAME_SIZE); break; @@ -376,6 +136,14 @@ static bool emc1403_regmap_is_volatile(struct device *dev, unsigned int reg) case 0x35: /* high limit status */ case 0x36: /* low limit status */ case 0x37: /* therm limit status */ + case 0x41: /* external diode 4 high byte */ + case 0x42: /* external diode 4 low byte */ + case 0x43: /* external diode 5 high byte */ + case 0x44: /* external diode 5 low byte */ + case 0x45: /* external diode 6 high byte */ + case 0x46: /* external diode 6 low byte */ + case 0x47: /* external diode 7 high byte */ + case 0x48: /* external diode 7 low byte */ return true; default: return false; @@ -389,51 +157,508 @@ static const struct regmap_config emc1403_regmap_config = { .volatile_reg = emc1403_regmap_is_volatile, }; -static const struct i2c_device_id emc1403_idtable[]; +enum emc1403_reg_map {temp_min, temp_max, temp_crit, temp_input}; -static int emc1403_probe(struct i2c_client *client) +static u8 ema1403_temp_map[] = { + [hwmon_temp_min] = temp_min, + [hwmon_temp_max] = temp_max, + [hwmon_temp_crit] = temp_crit, + [hwmon_temp_input] = temp_input, +}; + +static u8 emc1403_temp_regs[][4] = { + [0] = { + [temp_min] = 0x06, + [temp_max] = 0x05, + [temp_crit] = 0x20, + [temp_input] = 0x00, + }, + [1] = { + [temp_min] = 0x08, + [temp_max] = 0x07, + [temp_crit] = 0x19, + [temp_input] = 0x01, + }, + [2] = { + [temp_min] = 0x16, + [temp_max] = 0x15, + [temp_crit] = 0x1a, + [temp_input] = 0x23, + }, + [3] = { + [temp_min] = 0x2d, + [temp_max] = 0x2c, + [temp_crit] = 0x30, + [temp_input] = 0x2a, + }, + [4] = { + [temp_min] = 0x51, + [temp_max] = 0x50, + [temp_crit] = 0x64, + [temp_input] = 0x41, + }, + [5] = { + [temp_min] = 0x55, + [temp_max] = 0x54, + [temp_crit] = 0x65, + [temp_input] = 0x43 + }, + [6] = { + [temp_min] = 0x59, + [temp_max] = 0x58, + [temp_crit] = 0x66, + [temp_input] = 0x45, + }, + [7] = { + [temp_min] = 0x5d, + [temp_max] = 0x5c, + [temp_crit] = 0x67, + [temp_input] = 0x47, + }, +}; + +static s8 emc1403_temp_regs_low[][4] = { + [0] = { + [temp_min] = -1, + [temp_max] = -1, + [temp_crit] = -1, + [temp_input] = 0x29, + }, + [1] = { + [temp_min] = 0x14, + [temp_max] = 0x13, + [temp_crit] = -1, + [temp_input] = 0x10, + }, + [2] = { + [temp_min] = 0x18, + [temp_max] = 0x17, + [temp_crit] = -1, + [temp_input] = 0x24, + }, + [3] = { + [temp_min] = 0x2f, + [temp_max] = 0x2e, + [temp_crit] = -1, + [temp_input] = 0x2b, + }, + [4] = { + [temp_min] = 0x53, + [temp_max] = 0x52, + [temp_crit] = -1, + [temp_input] = 0x42, + }, + [5] = { + [temp_min] = 0x57, + [temp_max] = 0x56, + [temp_crit] = -1, + [temp_input] = 0x44, + }, + [6] = { + [temp_min] = 0x5b, + [temp_max] = 0x5a, + [temp_crit] = -1, + [temp_input] = 0x46, + }, + [7] = { + [temp_min] = 0x5f, + [temp_max] = 0x5e, + [temp_crit] = -1, + [temp_input] = 0x48, + }, +}; + +static int __emc1403_get_temp(struct thermal_data *data, int channel, + enum emc1403_reg_map map, long *val) { - struct thermal_data *data; - struct device *hwmon_dev; - const struct i2c_device_id *id = i2c_match_id(emc1403_idtable, client); + unsigned int regvalh; + unsigned int regvall = 0; + int ret; + s8 reg; + + ret = regmap_read(data->regmap, emc1403_temp_regs[channel][map], ®valh); + if (ret < 0) + return ret; + + reg = emc1403_temp_regs_low[channel][map]; + if (reg >= 0) { + ret = regmap_read(data->regmap, reg, ®vall); + if (ret < 0) + return ret; + } - data = devm_kzalloc(&client->dev, sizeof(struct thermal_data), - GFP_KERNEL); - if (data == NULL) - return -ENOMEM; + if (data->chip == emc1428) + *val = sign_extend32((regvalh << 3) | (regvall >> 5), 10) * 125; + else + *val = ((regvalh << 3) | (regvall >> 5)) * 125; - data->regmap = devm_regmap_init_i2c(client, &emc1403_regmap_config); - if (IS_ERR(data->regmap)) - return PTR_ERR(data->regmap); + return 0; +} - mutex_init(&data->mutex); +static int emc1403_get_temp(struct thermal_data *data, int channel, + enum emc1403_reg_map map, long *val) +{ + int ret; + + mutex_lock(&data->mutex); + ret = __emc1403_get_temp(data, channel, map, val); + mutex_unlock(&data->mutex); + + return ret; +} + +static int emc1403_get_hyst(struct thermal_data *data, int channel, + enum emc1403_reg_map map, long *val) +{ + int hyst, ret; + long limit; - switch (id->driver_data) { - case emc1404: - data->groups[2] = &emc1404_group; - fallthrough; - case emc1403: - data->groups[1] = &emc1403_group; - fallthrough; - case emc1402: - data->groups[0] = &emc1402_group; + mutex_lock(&data->mutex); + ret = __emc1403_get_temp(data, channel, map, &limit); + if (ret < 0) + goto unlock; + ret = regmap_read(data->regmap, 0x21, &hyst); + if (ret < 0) + goto unlock; + if (map == temp_min) + *val = limit + hyst * 1000; + else + *val = limit - hyst * 1000; +unlock: + mutex_unlock(&data->mutex); + return ret; +} + +static int emc1403_temp_read(struct thermal_data *data, u32 attr, int channel, long *val) +{ + unsigned int regval; + int ret; + + switch (attr) { + case hwmon_temp_min: + case hwmon_temp_max: + case hwmon_temp_crit: + case hwmon_temp_input: + ret = emc1403_get_temp(data, channel, ema1403_temp_map[attr], val); + break; + case hwmon_temp_min_hyst: + ret = emc1403_get_hyst(data, channel, temp_min, val); + break; + case hwmon_temp_max_hyst: + ret = emc1403_get_hyst(data, channel, temp_max, val); + break; + case hwmon_temp_crit_hyst: + ret = emc1403_get_hyst(data, channel, temp_crit, val); + break; + case hwmon_temp_min_alarm: + if (data->chip == emc1402) { + ret = regmap_read(data->regmap, 0x02, ®val); + if (ret < 0) + break; + *val = !!(regval & BIT(5 - 2 * channel)); + } else { + ret = regmap_read(data->regmap, 0x36, ®val); + if (ret < 0) + break; + *val = !!(regval & BIT(channel)); + } + break; + case hwmon_temp_max_alarm: + if (data->chip == emc1402) { + ret = regmap_read(data->regmap, 0x02, ®val); + if (ret < 0) + break; + *val = !!(regval & BIT(6 - 2 * channel)); + } else { + ret = regmap_read(data->regmap, 0x35, ®val); + if (ret < 0) + break; + *val = !!(regval & BIT(channel)); + } + break; + case hwmon_temp_crit_alarm: + if (data->chip == emc1402) { + ret = regmap_read(data->regmap, 0x02, ®val); + if (ret < 0) + break; + *val = !!(regval & BIT(channel)); + } else { + ret = regmap_read(data->regmap, 0x37, ®val); + if (ret < 0) + break; + *val = !!(regval & BIT(channel)); + } + break; + case hwmon_temp_fault: + ret = regmap_read(data->regmap, 0x1b, ®val); + if (ret < 0) + break; + *val = !!(regval & BIT(channel)); + break; + default: + return -EOPNOTSUPP; } + return ret; +} - if (id->driver_data == emc1402) - data->groups[1] = &emc1402_alarm_group; +static int emc1403_get_convrate(struct thermal_data *data, long *val) +{ + unsigned int convrate; + int ret; - hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev, - client->name, data, - data->groups); - if (IS_ERR(hwmon_dev)) - return PTR_ERR(hwmon_dev); + ret = regmap_read(data->regmap, 0x04, &convrate); + if (ret < 0) + return ret; + if (convrate > 10) + convrate = 4; - dev_info(&client->dev, "%s Thermal chip found\n", id->name); + *val = 16000 >> convrate; return 0; } -static const unsigned short emc1403_address_list[] = { - 0x18, 0x1c, 0x29, 0x3c, 0x4c, 0x4d, 0x5c, I2C_CLIENT_END +static int emc1403_chip_read(struct thermal_data *data, u32 attr, long *val) +{ + switch (attr) { + case hwmon_chip_update_interval: + return emc1403_get_convrate(data, val); + default: + return -EOPNOTSUPP; + } +} + +static int emc1403_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + struct thermal_data *data = dev_get_drvdata(dev); + + switch (type) { + case hwmon_temp: + return emc1403_temp_read(data, attr, channel, val); + case hwmon_chip: + return emc1403_chip_read(data, attr, val); + default: + return -EOPNOTSUPP; + } +} + +static int emc1403_set_hyst(struct thermal_data *data, long val) +{ + int hyst, ret; + long limit; + + if (data->chip == emc1428) + val = clamp_val(val, -128000, 127000); + else + val = clamp_val(val, 0, 255000); + + mutex_lock(&data->mutex); + ret = __emc1403_get_temp(data, 0, temp_crit, &limit); + if (ret < 0) + goto unlock; + + hyst = limit - val; + if (data->chip == emc1428) + hyst = clamp_val(DIV_ROUND_CLOSEST(hyst, 1000), 0, 127); + else + hyst = clamp_val(DIV_ROUND_CLOSEST(hyst, 1000), 0, 255); + ret = regmap_write(data->regmap, 0x21, hyst); +unlock: + mutex_unlock(&data->mutex); + return ret; +} + +static int emc1403_set_temp(struct thermal_data *data, int channel, + enum emc1403_reg_map map, long val) +{ + unsigned int regval; + int ret; + u8 regh; + s8 regl; + + regh = emc1403_temp_regs[channel][map]; + regl = emc1403_temp_regs_low[channel][map]; + + mutex_lock(&data->mutex); + if (regl >= 0) { + if (data->chip == emc1428) + val = clamp_val(val, -128000, 127875); + else + val = clamp_val(val, 0, 255875); + regval = DIV_ROUND_CLOSEST(val, 125); + ret = regmap_write(data->regmap, regh, (regval >> 3) & 0xff); + if (ret < 0) + goto unlock; + ret = regmap_write(data->regmap, regl, (regval & 0x07) << 5); + } else { + if (data->chip == emc1428) + val = clamp_val(val, -128000, 127000); + else + val = clamp_val(val, 0, 255000); + regval = DIV_ROUND_CLOSEST(val, 1000); + ret = regmap_write(data->regmap, regh, regval); + } +unlock: + mutex_unlock(&data->mutex); + return ret; +} + +static int emc1403_temp_write(struct thermal_data *data, u32 attr, int channel, long val) +{ + switch (attr) { + case hwmon_temp_min: + case hwmon_temp_max: + case hwmon_temp_crit: + return emc1403_set_temp(data, channel, ema1403_temp_map[attr], val); + case hwmon_temp_crit_hyst: + return emc1403_set_hyst(data, val); + default: + return -EOPNOTSUPP; + } +} + +/* Lookup table for temperature conversion times in msec */ +static const u16 ina3221_conv_time[] = { + 16000, 8000, 4000, 2000, 1000, 500, 250, 125, 62, 31, 16 +}; + +static int emc1403_set_convrate(struct thermal_data *data, unsigned int interval) +{ + int convrate; + + convrate = find_closest_descending(interval, ina3221_conv_time, + ARRAY_SIZE(ina3221_conv_time)); + return regmap_write(data->regmap, 0x04, convrate); +} + +static int emc1403_chip_write(struct thermal_data *data, u32 attr, long val) +{ + switch (attr) { + case hwmon_chip_update_interval: + return emc1403_set_convrate(data, clamp_val(val, 0, 100000)); + default: + return -EOPNOTSUPP; + } +} + +static int emc1403_write(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long val) +{ + struct thermal_data *data = dev_get_drvdata(dev); + + switch (type) { + case hwmon_temp: + return emc1403_temp_write(data, attr, channel, val); + case hwmon_chip: + return emc1403_chip_write(data, attr, val); + default: + return -EOPNOTSUPP; + } +} + +static umode_t emc1403_temp_is_visible(const void *_data, u32 attr, int channel) +{ + const struct thermal_data *data = _data; + + if (data->chip == emc1402 && channel > 1) + return 0; + if (data->chip == emc1403 && channel > 2) + return 0; + if (data->chip != emc1428 && channel > 3) + return 0; + + switch (attr) { + case hwmon_temp_input: + case hwmon_temp_min_alarm: + case hwmon_temp_max_alarm: + case hwmon_temp_crit_alarm: + case hwmon_temp_fault: + case hwmon_temp_min_hyst: + case hwmon_temp_max_hyst: + return 0444; + case hwmon_temp_min: + case hwmon_temp_max: + case hwmon_temp_crit: + return 0644; + case hwmon_temp_crit_hyst: + if (channel == 0) + return 0644; + return 0444; + default: + return 0; + } +} + +static umode_t emc1403_chip_is_visible(const void *_data, u32 attr) +{ + switch (attr) { + case hwmon_chip_update_interval: + return 0644; + default: + return 0; + } +} + +static umode_t emc1403_is_visible(const void *data, enum hwmon_sensor_types type, + u32 attr, int channel) +{ + switch (type) { + case hwmon_temp: + return emc1403_temp_is_visible(data, attr, channel); + case hwmon_chip: + return emc1403_chip_is_visible(data, attr); + default: + return 0; + } +} + +static const struct hwmon_channel_info * const emc1403_info[] = { + HWMON_CHANNEL_INFO(chip, HWMON_C_UPDATE_INTERVAL), + HWMON_CHANNEL_INFO(temp, + HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | + HWMON_T_CRIT | HWMON_T_MIN_HYST | HWMON_T_MAX_HYST | + HWMON_T_CRIT_HYST | HWMON_T_MIN_ALARM | + HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM, + HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | + HWMON_T_CRIT | HWMON_T_MIN_HYST | HWMON_T_MAX_HYST | + HWMON_T_CRIT_HYST | HWMON_T_MIN_ALARM | + HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM | HWMON_T_FAULT, + HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | + HWMON_T_CRIT | HWMON_T_MIN_HYST | HWMON_T_MAX_HYST | + HWMON_T_CRIT_HYST | HWMON_T_MIN_ALARM | + HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM | HWMON_T_FAULT, + HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | + HWMON_T_CRIT | HWMON_T_MIN_HYST | HWMON_T_MAX_HYST | + HWMON_T_CRIT_HYST | HWMON_T_MIN_ALARM | + HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM | HWMON_T_FAULT, + HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | + HWMON_T_CRIT | HWMON_T_MIN_HYST | HWMON_T_MAX_HYST | + HWMON_T_CRIT_HYST | HWMON_T_MIN_ALARM | + HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM | HWMON_T_FAULT, + HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | + HWMON_T_CRIT | HWMON_T_MIN_HYST | HWMON_T_MAX_HYST | + HWMON_T_CRIT_HYST | HWMON_T_MIN_ALARM | + HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM | HWMON_T_FAULT, + HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | + HWMON_T_CRIT | HWMON_T_MIN_HYST | HWMON_T_MAX_HYST | + HWMON_T_CRIT_HYST | HWMON_T_MIN_ALARM | + HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM | HWMON_T_FAULT, + HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | + HWMON_T_CRIT | HWMON_T_MIN_HYST | HWMON_T_MAX_HYST | + HWMON_T_CRIT_HYST | HWMON_T_MIN_ALARM | + HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM | HWMON_T_FAULT + ), + NULL +}; + +static const struct hwmon_ops emc1403_hwmon_ops = { + .is_visible = emc1403_is_visible, + .read = emc1403_read, + .write = emc1403_write, +}; + +static const struct hwmon_chip_info emc1403_chip_info = { + .ops = &emc1403_hwmon_ops, + .info = emc1403_info, }; /* Last digit of chip name indicates number of channels */ @@ -447,11 +672,42 @@ static const struct i2c_device_id emc1403_idtable[] = { { "emc1422", emc1402 }, { "emc1423", emc1403 }, { "emc1424", emc1404 }, + { "emc1428", emc1428 }, + { "emc1438", emc1428 }, { "emc1442", emc1402 }, { } }; MODULE_DEVICE_TABLE(i2c, emc1403_idtable); +static int emc1403_probe(struct i2c_client *client) +{ + struct thermal_data *data; + struct device *hwmon_dev; + const struct i2c_device_id *id = i2c_match_id(emc1403_idtable, client); + + data = devm_kzalloc(&client->dev, sizeof(struct thermal_data), + GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->chip = id->driver_data; + data->regmap = devm_regmap_init_i2c(client, &emc1403_regmap_config); + if (IS_ERR(data->regmap)) + return PTR_ERR(data->regmap); + + mutex_init(&data->mutex); + + hwmon_dev = devm_hwmon_device_register_with_info(&client->dev, + client->name, data, + &emc1403_chip_info, + emc1403_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); +} + +static const unsigned short emc1403_address_list[] = { + 0x18, 0x1c, 0x29, 0x3c, 0x4c, 0x4d, 0x5c, I2C_CLIENT_END +}; + static struct i2c_driver sensor_emc1403 = { .class = I2C_CLASS_HWMON, .driver = { diff --git a/drivers/hwmon/emc2103.c b/drivers/hwmon/emc2103.c index b59472bbe5bf..60eddc7b0270 100644 --- a/drivers/hwmon/emc2103.c +++ b/drivers/hwmon/emc2103.c @@ -620,7 +620,7 @@ emc2103_probe(struct i2c_client *client) } static const struct i2c_device_id emc2103_ids[] = { - { "emc2103", 0, }, + { "emc2103" }, { /* LIST END */ } }; MODULE_DEVICE_TABLE(i2c, emc2103_ids); diff --git a/drivers/hwmon/emc2305.c b/drivers/hwmon/emc2305.c index 6ef733c0be16..234c54956a4b 100644 --- a/drivers/hwmon/emc2305.c +++ b/drivers/hwmon/emc2305.c @@ -47,10 +47,10 @@ enum emc230x_product_id { }; static const struct i2c_device_id emc2305_ids[] = { - { "emc2305", 0 }, - { "emc2303", 0 }, - { "emc2302", 0 }, - { "emc2301", 0 }, + { "emc2305" }, + { "emc2303" }, + { "emc2302" }, + { "emc2301" }, { } }; MODULE_DEVICE_TABLE(i2c, emc2305_ids); @@ -112,8 +112,6 @@ static char *emc2305_fan_name[] = { "emc2305_fan5", }; -static void emc2305_unset_tz(struct device *dev); - static int emc2305_get_max_channel(const struct emc2305_data *data) { return data->pwm_num; @@ -293,8 +291,9 @@ static int emc2305_set_single_tz(struct device *dev, int idx) pwm = data->pwm_min[cdev_idx]; data->cdev_data[cdev_idx].cdev = - thermal_cooling_device_register(emc2305_fan_name[idx], data, - &emc2305_cooling_ops); + devm_thermal_of_cooling_device_register(dev, dev->of_node, + emc2305_fan_name[idx], data, + &emc2305_cooling_ops); if (IS_ERR(data->cdev_data[cdev_idx].cdev)) { dev_err(dev, "Failed to register cooling device %s\n", emc2305_fan_name[idx]); @@ -332,24 +331,9 @@ static int emc2305_set_tz(struct device *dev) for (i = 0; i < data->pwm_num; i++) { ret = emc2305_set_single_tz(dev, i + 1); if (ret) - goto thermal_cooling_device_register_fail; + return ret; } return 0; - -thermal_cooling_device_register_fail: - emc2305_unset_tz(dev); - return ret; -} - -static void emc2305_unset_tz(struct device *dev) -{ - struct emc2305_data *data = dev_get_drvdata(dev); - int i; - - /* Unregister cooling device. */ - for (i = 0; i < EMC2305_PWM_MAX; i++) - if (data->cdev_data[i].cdev) - thermal_cooling_device_unregister(data->cdev_data[i].cdev); } static umode_t @@ -599,20 +583,18 @@ static int emc2305_probe(struct i2c_client *client) return 0; } -static void emc2305_remove(struct i2c_client *client) -{ - struct device *dev = &client->dev; - - if (IS_REACHABLE(CONFIG_THERMAL)) - emc2305_unset_tz(dev); -} +static const struct of_device_id of_emc2305_match_table[] = { + { .compatible = "microchip,emc2305", }, + {}, +}; +MODULE_DEVICE_TABLE(of, of_emc2305_match_table); static struct i2c_driver emc2305_driver = { .driver = { .name = "emc2305", + .of_match_table = of_emc2305_match_table, }, .probe = emc2305_probe, - .remove = emc2305_remove, .id_table = emc2305_ids, }; diff --git a/drivers/hwmon/emc6w201.c b/drivers/hwmon/emc6w201.c index 9a4f868bf1e6..1100c6e5daa7 100644 --- a/drivers/hwmon/emc6w201.c +++ b/drivers/hwmon/emc6w201.c @@ -464,7 +464,7 @@ static int emc6w201_probe(struct i2c_client *client) } static const struct i2c_device_id emc6w201_id[] = { - { "emc6w201", 0 }, + { "emc6w201" }, { } }; MODULE_DEVICE_TABLE(i2c, emc6w201_id); diff --git a/drivers/hwmon/f71805f.c b/drivers/hwmon/f71805f.c index 243c570dee4c..820f894d9ffd 100644 --- a/drivers/hwmon/f71805f.c +++ b/drivers/hwmon/f71805f.c @@ -1497,7 +1497,7 @@ static struct platform_driver f71805f_driver = { .name = DRVNAME, }, .probe = f71805f_probe, - .remove_new = f71805f_remove, + .remove = f71805f_remove, }; static int __init f71805f_device_add(unsigned short address, diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c index 7c941d320a18..df83f9866fbc 100644 --- a/drivers/hwmon/f71882fg.c +++ b/drivers/hwmon/f71882fg.c @@ -2658,7 +2658,7 @@ static struct platform_driver f71882fg_driver = { .name = DRVNAME, }, .probe = f71882fg_probe, - .remove_new = f71882fg_remove, + .remove = f71882fg_remove, }; static int __init f71882fg_init(void) diff --git a/drivers/hwmon/f75375s.c b/drivers/hwmon/f75375s.c index 8c572bb64f5d..7e867f132420 100644 --- a/drivers/hwmon/f75375s.c +++ b/drivers/hwmon/f75375s.c @@ -111,31 +111,6 @@ struct f75375_data { s8 temp_max_hyst[2]; }; -static int f75375_detect(struct i2c_client *client, - struct i2c_board_info *info); -static int f75375_probe(struct i2c_client *client); -static void f75375_remove(struct i2c_client *client); - -static const struct i2c_device_id f75375_id[] = { - { "f75373", f75373 }, - { "f75375", f75375 }, - { "f75387", f75387 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, f75375_id); - -static struct i2c_driver f75375_driver = { - .class = I2C_CLASS_HWMON, - .driver = { - .name = "f75375", - }, - .probe = f75375_probe, - .remove = f75375_remove, - .id_table = f75375_id, - .detect = f75375_detect, - .address_list = normal_i2c, -}; - static inline int f75375_read8(struct i2c_client *client, u8 reg) { return i2c_smbus_read_byte_data(client, reg); @@ -830,7 +805,7 @@ static int f75375_probe(struct i2c_client *client) i2c_set_clientdata(client, data); mutex_init(&data->update_lock); - data->kind = i2c_match_id(f75375_id, client)->driver_data; + data->kind = (uintptr_t)i2c_get_match_data(client); err = sysfs_create_group(&client->dev.kobj, &f75375_group); if (err) @@ -901,6 +876,25 @@ static int f75375_detect(struct i2c_client *client, return 0; } +static const struct i2c_device_id f75375_id[] = { + { "f75373", f75373 }, + { "f75375", f75375 }, + { "f75387", f75387 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, f75375_id); + +static struct i2c_driver f75375_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "f75375", + }, + .probe = f75375_probe, + .remove = f75375_remove, + .id_table = f75375_id, + .detect = f75375_detect, + .address_list = normal_i2c, +}; module_i2c_driver(f75375_driver); MODULE_AUTHOR("Riku Voipio"); diff --git a/drivers/hwmon/fam15h_power.c b/drivers/hwmon/fam15h_power.c index 9ed2c4b6734e..8ecebea53651 100644 --- a/drivers/hwmon/fam15h_power.c +++ b/drivers/hwmon/fam15h_power.c @@ -143,8 +143,8 @@ static void do_read_registers_on_cu(void *_data) */ cu = topology_core_id(smp_processor_id()); - rdmsrl_safe(MSR_F15H_CU_PWR_ACCUMULATOR, &data->cu_acc_power[cu]); - rdmsrl_safe(MSR_F15H_PTSC, &data->cpu_sw_pwr_ptsc[cu]); + rdmsrq_safe(MSR_F15H_CU_PWR_ACCUMULATOR, &data->cu_acc_power[cu]); + rdmsrq_safe(MSR_F15H_PTSC, &data->cpu_sw_pwr_ptsc[cu]); data->cu_on[cu] = 1; } @@ -424,7 +424,7 @@ static int fam15h_power_init_data(struct pci_dev *f4, */ data->cpu_pwr_sample_ratio = cpuid_ecx(0x80000007); - if (rdmsrl_safe(MSR_F15H_CU_MAX_PWR_ACCUMULATOR, &tmp)) { + if (rdmsrq_safe(MSR_F15H_CU_MAX_PWR_ACCUMULATOR, &tmp)) { pr_err("Failed to read max compute unit power accumulator MSR\n"); return -ENODEV; } diff --git a/drivers/hwmon/fschmd.c b/drivers/hwmon/fschmd.c index b30512a705a7..a303959879ef 100644 --- a/drivers/hwmon/fschmd.c +++ b/drivers/hwmon/fschmd.c @@ -948,7 +948,6 @@ static long watchdog_ioctl(struct file *filp, unsigned int cmd, static const struct file_operations watchdog_fops = { .owner = THIS_MODULE, - .llseek = no_llseek, .open = watchdog_open, .release = watchdog_release, .write = watchdog_write, @@ -1087,7 +1086,7 @@ static int fschmd_probe(struct i2c_client *client) "Heracles", "Heimdall", "Hades", "Syleus" }; static const int watchdog_minors[] = { WATCHDOG_MINOR, 212, 213, 214, 215 }; int i, err; - enum chips kind = i2c_match_id(fschmd_id, client)->driver_data; + enum chips kind = (uintptr_t)i2c_get_match_data(client); data = kzalloc(sizeof(struct fschmd_data), GFP_KERNEL); if (!data) diff --git a/drivers/hwmon/ftsteutates.c b/drivers/hwmon/ftsteutates.c index b74a2665e733..a3a07662e491 100644 --- a/drivers/hwmon/ftsteutates.c +++ b/drivers/hwmon/ftsteutates.c @@ -50,7 +50,7 @@ static const unsigned short normal_i2c[] = { 0x73, I2C_CLIENT_END }; static const struct i2c_device_id fts_id[] = { - { "ftsteutates", 0 }, + { "ftsteutates" }, { } }; MODULE_DEVICE_TABLE(i2c, fts_id); diff --git a/drivers/hwmon/g760a.c b/drivers/hwmon/g760a.c index b5edee00267b..39ae8f826417 100644 --- a/drivers/hwmon/g760a.c +++ b/drivers/hwmon/g760a.c @@ -197,7 +197,7 @@ static int g760a_probe(struct i2c_client *client) } static const struct i2c_device_id g760a_id[] = { - { "g760a", 0 }, + { "g760a" }, { } }; MODULE_DEVICE_TABLE(i2c, g760a_id); diff --git a/drivers/hwmon/g762.c b/drivers/hwmon/g762.c index fad69ef56c75..4fa3aa1271da 100644 --- a/drivers/hwmon/g762.c +++ b/drivers/hwmon/g762.c @@ -44,8 +44,9 @@ #define DRVNAME "g762" static const struct i2c_device_id g762_id[] = { - { "g762", 0 }, - { "g763", 0 }, + { "g761" }, + { "g762" }, + { "g763" }, { } }; MODULE_DEVICE_TABLE(i2c, g762_id); @@ -69,6 +70,7 @@ enum g762_regs { #define G762_REG_FAN_CMD1_PWM_POLARITY 0x02 /* PWM polarity */ #define G762_REG_FAN_CMD1_PULSE_PER_REV 0x01 /* pulse per fan revolution */ +#define G761_REG_FAN_CMD2_FAN_CLOCK 0x20 /* choose internal clock*/ #define G762_REG_FAN_CMD2_GEAR_MODE_1 0x08 /* fan gear mode */ #define G762_REG_FAN_CMD2_GEAR_MODE_0 0x04 #define G762_REG_FAN_CMD2_FAN_STARTV_1 0x02 /* fan startup voltage */ @@ -115,6 +117,7 @@ enum g762_regs { struct g762_data { struct i2c_client *client; + bool internal_clock; struct clk *clk; /* update mutex */ @@ -566,6 +569,7 @@ static int do_set_fan_startv(struct device *dev, unsigned long val) #ifdef CONFIG_OF static const struct of_device_id g762_dt_match[] = { + { .compatible = "gmt,g761" }, { .compatible = "gmt,g762" }, { .compatible = "gmt,g763" }, { }, @@ -597,6 +601,21 @@ static int g762_of_clock_enable(struct i2c_client *client) if (!client->dev.of_node) return 0; + data = i2c_get_clientdata(client); + + /* + * Skip CLK detection and handling if we use internal clock. + * This is only valid for g761. + */ + data->internal_clock = of_device_is_compatible(client->dev.of_node, + "gmt,g761") && + !of_property_present(client->dev.of_node, + "clocks"); + if (data->internal_clock) { + do_set_clk_freq(&client->dev, 32768); + return 0; + } + clk = of_clk_get(client->dev.of_node, 0); if (IS_ERR(clk)) { dev_err(&client->dev, "failed to get clock\n"); @@ -616,7 +635,6 @@ static int g762_of_clock_enable(struct i2c_client *client) goto clk_unprep; } - data = i2c_get_clientdata(client); data->clk = clk; ret = devm_add_action(&client->dev, g762_of_clock_disable, data); @@ -1025,16 +1043,26 @@ ATTRIBUTE_GROUPS(g762); static inline int g762_fan_init(struct device *dev) { struct g762_data *data = g762_update_client(dev); + int ret; if (IS_ERR(data)) return PTR_ERR(data); + /* internal_clock can only be set with compatible g761 */ + if (data->internal_clock) + data->fan_cmd2 |= G761_REG_FAN_CMD2_FAN_CLOCK; + data->fan_cmd1 |= G762_REG_FAN_CMD1_DET_FAN_FAIL; data->fan_cmd1 |= G762_REG_FAN_CMD1_DET_FAN_OOC; data->valid = false; - return i2c_smbus_write_byte_data(data->client, G762_REG_FAN_CMD1, - data->fan_cmd1); + ret = i2c_smbus_write_byte_data(data->client, G762_REG_FAN_CMD1, + data->fan_cmd1); + if (ret) + return ret; + + return i2c_smbus_write_byte_data(data->client, G762_REG_FAN_CMD2, + data->fan_cmd2); } static int g762_probe(struct i2c_client *client) @@ -1056,15 +1084,16 @@ static int g762_probe(struct i2c_client *client) data->client = client; mutex_init(&data->update_lock); - /* Enable fan failure detection and fan out of control protection */ - ret = g762_fan_init(dev); + /* Get configuration via DT ... */ + ret = g762_of_clock_enable(client); if (ret) return ret; - /* Get configuration via DT ... */ - ret = g762_of_clock_enable(client); + /* Enable fan failure detection and fan out of control protection */ + ret = g762_fan_init(dev); if (ret) return ret; + ret = g762_of_prop_import(client); if (ret) return ret; diff --git a/drivers/hwmon/gigabyte_waterforce.c b/drivers/hwmon/gigabyte_waterforce.c index 8129d7b3ceaf..27487e215bdd 100644 --- a/drivers/hwmon/gigabyte_waterforce.c +++ b/drivers/hwmon/gigabyte_waterforce.c @@ -11,7 +11,7 @@ #include <linux/jiffies.h> #include <linux/module.h> #include <linux/spinlock.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #define DRIVER_NAME "gigabyte_waterforce" diff --git a/drivers/hwmon/gl518sm.c b/drivers/hwmon/gl518sm.c index 03db6158b13a..9c68bc013950 100644 --- a/drivers/hwmon/gl518sm.c +++ b/drivers/hwmon/gl518sm.c @@ -642,7 +642,7 @@ static int gl518_probe(struct i2c_client *client) } static const struct i2c_device_id gl518_id[] = { - { "gl518sm", 0 }, + { "gl518sm" }, { } }; MODULE_DEVICE_TABLE(i2c, gl518_id); diff --git a/drivers/hwmon/gl520sm.c b/drivers/hwmon/gl520sm.c index 8bbc6a4f2928..972f4f8caa2b 100644 --- a/drivers/hwmon/gl520sm.c +++ b/drivers/hwmon/gl520sm.c @@ -885,7 +885,7 @@ static int gl520_probe(struct i2c_client *client) } static const struct i2c_device_id gl520_id[] = { - { "gl520sm", 0 }, + { "gl520sm" }, { } }; MODULE_DEVICE_TABLE(i2c, gl520_id); diff --git a/drivers/hwmon/gpio-fan.c b/drivers/hwmon/gpio-fan.c index d92c536be9af..b779240328d5 100644 --- a/drivers/hwmon/gpio-fan.c +++ b/drivers/hwmon/gpio-fan.c @@ -393,7 +393,12 @@ static int gpio_fan_set_cur_state(struct thermal_cooling_device *cdev, if (state >= fan_data->num_speed) return -EINVAL; + mutex_lock(&fan_data->lock); + set_fan_speed(fan_data, state); + + mutex_unlock(&fan_data->lock); + return 0; } @@ -489,7 +494,11 @@ MODULE_DEVICE_TABLE(of, of_gpio_fan_match); static void gpio_fan_stop(void *data) { + struct gpio_fan_data *fan_data = data; + + mutex_lock(&fan_data->lock); set_fan_speed(data, 0); + mutex_unlock(&fan_data->lock); } static int gpio_fan_probe(struct platform_device *pdev) @@ -562,7 +571,9 @@ static int gpio_fan_suspend(struct device *dev) if (fan_data->gpios) { fan_data->resume_speed = fan_data->speed_index; + mutex_lock(&fan_data->lock); set_fan_speed(fan_data, 0); + mutex_unlock(&fan_data->lock); } return 0; @@ -572,8 +583,11 @@ static int gpio_fan_resume(struct device *dev) { struct gpio_fan_data *fan_data = dev_get_drvdata(dev); - if (fan_data->gpios) + if (fan_data->gpios) { + mutex_lock(&fan_data->lock); set_fan_speed(fan_data, fan_data->resume_speed); + mutex_unlock(&fan_data->lock); + } return 0; } diff --git a/drivers/hwmon/gsc-hwmon.c b/drivers/hwmon/gsc-hwmon.c index 1501ceb551e7..0f9af82cebec 100644 --- a/drivers/hwmon/gsc-hwmon.c +++ b/drivers/hwmon/gsc-hwmon.c @@ -39,7 +39,7 @@ struct gsc_hwmon_data { struct hwmon_chip_info chip; }; -static struct regmap_bus gsc_hwmon_regmap_bus = { +static const struct regmap_bus gsc_hwmon_regmap_bus = { .reg_read = gsc_read, .reg_write = gsc_write, }; @@ -47,7 +47,6 @@ static struct regmap_bus gsc_hwmon_regmap_bus = { static const struct regmap_config gsc_hwmon_regmap_config = { .reg_bits = 8, .val_bits = 8, - .cache_type = REGCACHE_NONE, }; static ssize_t pwm_auto_point_temp_show(struct device *dev, @@ -231,15 +230,8 @@ gsc_hwmon_read_string(struct device *dev, enum hwmon_sensor_types type, return 0; } -static umode_t -gsc_hwmon_is_visible(const void *_data, enum hwmon_sensor_types type, u32 attr, - int ch) -{ - return 0444; -} - static const struct hwmon_ops gsc_hwmon_ops = { - .is_visible = gsc_hwmon_is_visible, + .visible = 0444, .read = gsc_hwmon_read, .read_string = gsc_hwmon_read_string, }; @@ -249,7 +241,6 @@ gsc_hwmon_get_devtree_pdata(struct device *dev) { struct gsc_hwmon_platform_data *pdata; struct gsc_hwmon_channel *ch; - struct fwnode_handle *child; struct device_node *fan; int nchannels; @@ -276,25 +267,21 @@ gsc_hwmon_get_devtree_pdata(struct device *dev) ch = pdata->channels; /* allocate structures for channels and count instances of each type */ - device_for_each_child_node(dev, child) { + device_for_each_child_node_scoped(dev, child) { if (fwnode_property_read_string(child, "label", &ch->name)) { dev_err(dev, "channel without label\n"); - fwnode_handle_put(child); return ERR_PTR(-EINVAL); } if (fwnode_property_read_u32(child, "reg", &ch->reg)) { dev_err(dev, "channel without reg\n"); - fwnode_handle_put(child); return ERR_PTR(-EINVAL); } if (fwnode_property_read_u32(child, "gw,mode", &ch->mode)) { dev_err(dev, "channel without mode\n"); - fwnode_handle_put(child); return ERR_PTR(-EINVAL); } if (ch->mode > mode_max) { dev_err(dev, "invalid channel mode\n"); - fwnode_handle_put(child); return ERR_PTR(-EINVAL); } @@ -405,6 +392,7 @@ static const struct of_device_id gsc_hwmon_of_match[] = { { .compatible = "gw,gsc-adc", }, {} }; +MODULE_DEVICE_TABLE(of, gsc_hwmon_of_match); static struct platform_driver gsc_hwmon_driver = { .driver = { diff --git a/drivers/hwmon/hih6130.c b/drivers/hwmon/hih6130.c index a9726b5370fb..85af8299150a 100644 --- a/drivers/hwmon/hih6130.c +++ b/drivers/hwmon/hih6130.c @@ -233,7 +233,7 @@ static int hih6130_probe(struct i2c_client *client) /* Device ID table */ static const struct i2c_device_id hih6130_id[] = { - { "hih6130", 0 }, + { "hih6130" }, { } }; MODULE_DEVICE_TABLE(i2c, hih6130_id); diff --git a/drivers/hwmon/hp-wmi-sensors.c b/drivers/hwmon/hp-wmi-sensors.c index b5325d0e72b9..03c684ba83bd 100644 --- a/drivers/hwmon/hp-wmi-sensors.c +++ b/drivers/hwmon/hp-wmi-sensors.c @@ -1197,7 +1197,7 @@ static int hp_wmi_update_info(struct hp_wmi_sensors *state, if (time_after(jiffies, info->last_updated + HZ)) { mutex_lock(&state->lock); - wobj = hp_wmi_get_wobj(HP_WMI_NUMERIC_SENSOR_GUID, instance); + wobj = wmidev_block_query(state->wdev, instance); if (!wobj) { ret = -EIO; goto out_unlock; @@ -1597,15 +1597,13 @@ static void hp_wmi_devm_notify_remove(void *ignored) } /* hp_wmi_notify - WMI event notification handler */ -static void hp_wmi_notify(u32 value, void *context) +static void hp_wmi_notify(union acpi_object *wobj, void *context) { struct hp_wmi_info *temp_info[HP_WMI_MAX_INSTANCES] = {}; - struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL }; struct hp_wmi_sensors *state = context; struct device *dev = &state->wdev->dev; struct hp_wmi_event event = {}; struct hp_wmi_info *fan_info; - union acpi_object *wobj; acpi_status err; int event_type; u8 count; @@ -1630,18 +1628,15 @@ static void hp_wmi_notify(u32 value, void *context) * HPBIOS_BIOSEvent instance. */ - mutex_lock(&state->lock); - - err = wmi_get_event_data(value, &out); - if (ACPI_FAILURE(err)) - goto out_unlock; + if (!wobj) + return; - wobj = out.pointer; + mutex_lock(&state->lock); err = populate_event_from_wobj(dev, &event, wobj); if (err) { dev_warn(dev, "Bad event data (ACPI type %d)\n", wobj->type); - goto out_free_wobj; + goto out_free; } event_type = classify_event(event.name, event.category); @@ -1666,13 +1661,10 @@ static void hp_wmi_notify(u32 value, void *context) break; } -out_free_wobj: - kfree(wobj); - +out_free: devm_kfree(dev, event.name); devm_kfree(dev, event.description); -out_unlock: mutex_unlock(&state->lock); } @@ -1753,7 +1745,7 @@ static int init_numeric_sensors(struct hp_wmi_sensors *state, return -ENOMEM; for (i = 0, info = info_arr; i < icount; i++, info++) { - wobj = hp_wmi_get_wobj(HP_WMI_NUMERIC_SENSOR_GUID, i); + wobj = wmidev_block_query(state->wdev, i); if (!wobj) return -EIO; diff --git a/drivers/hwmon/hs3001.c b/drivers/hwmon/hs3001.c index 01ea9a3062bc..24ed3fb9a43a 100644 --- a/drivers/hwmon/hs3001.c +++ b/drivers/hwmon/hs3001.c @@ -175,7 +175,7 @@ static const struct hwmon_chip_info hs3001_chip_info = { /* device ID table */ static const struct i2c_device_id hs3001_ids[] = { - { "hs3001", 0 }, + { "hs3001" }, { }, }; diff --git a/drivers/hwmon/htu31.c b/drivers/hwmon/htu31.c new file mode 100644 index 000000000000..7521a371aa6c --- /dev/null +++ b/drivers/hwmon/htu31.c @@ -0,0 +1,350 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * The driver for Measurement Specialties HTU31 Temperature and Humidity sensor. + * + * Copyright (C) 2025 + * Author: Andrei Lalaev <andrey.lalaev@gmail.com> + */ + +#include <linux/array_size.h> +#include <linux/cleanup.h> +#include <linux/crc8.h> +#include <linux/debugfs.h> +#include <linux/delay.h> +#include <linux/hwmon.h> +#include <linux/hwmon-sysfs.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/module.h> + +#define HTU31_READ_TEMP_HUM_CMD 0x00 +#define HTU31_READ_SERIAL_CMD 0x0a +#define HTU31_CONVERSION_CMD 0x5e +#define HTU31_HEATER_OFF_CMD 0x02 +#define HTU31_HEATER_ON_CMD 0x04 + +#define HTU31_TEMP_HUM_LEN 6 + +/* Conversion time for the highest resolution */ +#define HTU31_HUMIDITY_CONV_TIME 10000 /* us */ +#define HTU31_TEMPERATURE_CONV_TIME 15000 /* us */ + +#define HTU31_SERIAL_NUMBER_LEN 3 +#define HTU31_SERIAL_NUMBER_CRC_LEN 1 +#define HTU31_SERIAL_NUMBER_CRC_OFFSET 3 + +#define HTU31_CRC8_INIT_VAL 0 +#define HTU31_CRC8_POLYNOMIAL 0x31 +DECLARE_CRC8_TABLE(htu31_crc8_table); + +/** + * struct htu31_data - all the data required to operate a HTU31 chip + * @client: the i2c client associated with the HTU31 + * @lock: a mutex to prevent parallel access to the data + * @wait_time: the time needed by sensor to convert values + * @temperature: the latest temperature value in millidegrees + * @humidity: the latest relative humidity value in millipercent + * @serial_number: the serial number of the sensor + * @heater_enable: the internal state of the heater + */ +struct htu31_data { + struct i2c_client *client; + struct mutex lock; /* Used to protect against parallel data updates */ + long wait_time; + long temperature; + long humidity; + u8 serial_number[HTU31_SERIAL_NUMBER_LEN]; + bool heater_enable; +}; + +static long htu31_temp_to_millicelsius(u16 val) +{ + return -40000 + DIV_ROUND_CLOSEST_ULL(165000ULL * val, 65535); +} + +static long htu31_relative_humidity(u16 val) +{ + return DIV_ROUND_CLOSEST_ULL(100000ULL * val, 65535); +} + +static int htu31_data_fetch_command(struct htu31_data *data) +{ + struct i2c_client *client = data->client; + u8 conversion_on = HTU31_CONVERSION_CMD; + u8 read_data_cmd = HTU31_READ_TEMP_HUM_CMD; + u8 t_h_buf[HTU31_TEMP_HUM_LEN] = {}; + struct i2c_msg msgs[] = { + { + .addr = client->addr, + .flags = 0, + .len = 1, + .buf = &read_data_cmd, + }, + { + .addr = client->addr, + .flags = I2C_M_RD, + .len = sizeof(t_h_buf), + .buf = t_h_buf, + }, + }; + int ret; + u8 crc; + + guard(mutex)(&data->lock); + + ret = i2c_master_send(client, &conversion_on, 1); + if (ret != 1) { + ret = ret < 0 ? ret : -EIO; + dev_err(&client->dev, + "Conversion command is failed. Error code: %d\n", ret); + return ret; + } + + fsleep(data->wait_time); + + ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); + if (ret != ARRAY_SIZE(msgs)) { + ret = ret < 0 ? ret : -EIO; + dev_err(&client->dev, + "T&H command is failed. Error code: %d\n", ret); + return ret; + } + + crc = crc8(htu31_crc8_table, &t_h_buf[0], 2, HTU31_CRC8_INIT_VAL); + if (crc != t_h_buf[2]) { + dev_err(&client->dev, "Temperature CRC mismatch\n"); + return -EIO; + } + + crc = crc8(htu31_crc8_table, &t_h_buf[3], 2, HTU31_CRC8_INIT_VAL); + if (crc != t_h_buf[5]) { + dev_err(&client->dev, "Humidity CRC mismatch\n"); + return -EIO; + } + + data->temperature = htu31_temp_to_millicelsius(be16_to_cpup((__be16 *)&t_h_buf[0])); + data->humidity = htu31_relative_humidity(be16_to_cpup((__be16 *)&t_h_buf[3])); + + return 0; +} + +static umode_t htu31_is_visible(const void *data, enum hwmon_sensor_types type, + u32 attr, int channel) +{ + switch (type) { + case hwmon_temp: + case hwmon_humidity: + return 0444; + default: + return 0; + } +} + +static int htu31_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + struct htu31_data *data = dev_get_drvdata(dev); + int ret; + + ret = htu31_data_fetch_command(data); + if (ret < 0) + return ret; + + switch (type) { + case hwmon_temp: + if (attr != hwmon_temp_input) + return -EINVAL; + + *val = data->temperature; + break; + case hwmon_humidity: + if (attr != hwmon_humidity_input) + return -EINVAL; + + *val = data->humidity; + break; + default: + return -EOPNOTSUPP; + } + + return 0; +} + +static int htu31_read_serial_number(struct htu31_data *data) +{ + struct i2c_client *client = data->client; + u8 read_sn_cmd = HTU31_READ_SERIAL_CMD; + u8 sn_buf[HTU31_SERIAL_NUMBER_LEN + HTU31_SERIAL_NUMBER_CRC_LEN]; + struct i2c_msg msgs[] = { + { + .addr = client->addr, + .flags = 0, + .len = 1, + .buf = &read_sn_cmd, + }, + { + .addr = client->addr, + .flags = I2C_M_RD, + .len = sizeof(sn_buf), + .buf = sn_buf, + }, + }; + int ret; + u8 crc; + + ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); + if (ret < 0) + return ret; + + crc = crc8(htu31_crc8_table, sn_buf, HTU31_SERIAL_NUMBER_LEN, HTU31_CRC8_INIT_VAL); + if (crc != sn_buf[HTU31_SERIAL_NUMBER_CRC_OFFSET]) { + dev_err(&client->dev, "Serial number CRC mismatch\n"); + return -EIO; + } + + memcpy(data->serial_number, sn_buf, HTU31_SERIAL_NUMBER_LEN); + + return 0; +} + +static ssize_t heater_enable_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct htu31_data *data = dev_get_drvdata(dev); + + return sysfs_emit(buf, "%d\n", data->heater_enable); +} + +static ssize_t heater_enable_store(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + struct htu31_data *data = dev_get_drvdata(dev); + u8 heater_cmd; + bool status; + int ret; + + ret = kstrtobool(buf, &status); + if (ret) + return ret; + + heater_cmd = status ? HTU31_HEATER_ON_CMD : HTU31_HEATER_OFF_CMD; + + guard(mutex)(&data->lock); + + ret = i2c_master_send(data->client, &heater_cmd, 1); + if (ret < 0) + return ret; + + data->heater_enable = status; + + return count; +} + +static DEVICE_ATTR_RW(heater_enable); + +static int serial_number_show(struct seq_file *seq_file, + void *unused) +{ + struct htu31_data *data = seq_file->private; + + seq_printf(seq_file, "%X%X%X\n", data->serial_number[0], + data->serial_number[1], data->serial_number[2]); + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(serial_number); + +static struct attribute *htu31_attrs[] = { + &dev_attr_heater_enable.attr, + NULL +}; + +ATTRIBUTE_GROUPS(htu31); + +static const struct hwmon_channel_info * const htu31_info[] = { + HWMON_CHANNEL_INFO(temp, HWMON_T_INPUT), + HWMON_CHANNEL_INFO(humidity, HWMON_H_INPUT), + NULL +}; + +static const struct hwmon_ops htu31_hwmon_ops = { + .is_visible = htu31_is_visible, + .read = htu31_read, +}; + +static const struct hwmon_chip_info htu31_chip_info = { + .info = htu31_info, + .ops = &htu31_hwmon_ops, +}; + +static int htu31_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + struct device *hwmon_dev; + struct htu31_data *data; + int ret; + + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->client = client; + data->wait_time = HTU31_TEMPERATURE_CONV_TIME + HTU31_HUMIDITY_CONV_TIME; + + ret = devm_mutex_init(dev, &data->lock); + if (ret) + return ret; + + crc8_populate_msb(htu31_crc8_table, HTU31_CRC8_POLYNOMIAL); + + ret = htu31_read_serial_number(data); + if (ret) { + dev_err(dev, "Failed to read serial number\n"); + return ret; + } + + debugfs_create_file("serial_number", + 0444, + client->debugfs, + data, + &serial_number_fops); + + hwmon_dev = devm_hwmon_device_register_with_info(dev, + client->name, + data, + &htu31_chip_info, + htu31_groups); + + return PTR_ERR_OR_ZERO(hwmon_dev); +} + +static const struct i2c_device_id htu31_id[] = { + { "htu31" }, + { } +}; +MODULE_DEVICE_TABLE(i2c, htu31_id); + +#if IS_ENABLED(CONFIG_OF) +static const struct of_device_id htu31_of_match[] = { + { .compatible = "meas,htu31" }, + { } +}; +MODULE_DEVICE_TABLE(of, htu31_of_match); +#endif + +static struct i2c_driver htu31_driver = { + .driver = { + .name = "htu31", + .of_match_table = of_match_ptr(htu31_of_match), + }, + .probe = htu31_probe, + .id_table = htu31_id, +}; +module_i2c_driver(htu31_driver); + +MODULE_AUTHOR("Andrei Lalaev <andrey.lalaev@gmail.com>"); +MODULE_DESCRIPTION("HTU31 Temperature and Humidity sensor driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/hwmon-vid.c b/drivers/hwmon/hwmon-vid.c index 6d1175a51832..2df4956296ed 100644 --- a/drivers/hwmon/hwmon-vid.c +++ b/drivers/hwmon/hwmon-vid.c @@ -15,6 +15,10 @@ #include <linux/kernel.h> #include <linux/hwmon-vid.h> +#ifdef CONFIG_X86 +#include <asm/msr.h> +#endif + /* * Common code for decoding VID pins. * diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c index 3b259c425ab7..1688c210888a 100644 --- a/drivers/hwmon/hwmon.c +++ b/drivers/hwmon/hwmon.c @@ -14,6 +14,7 @@ #include <linux/err.h> #include <linux/gfp.h> #include <linux/hwmon.h> +#include <linux/i2c.h> #include <linux/idr.h> #include <linux/kstrtox.h> #include <linux/list.h> @@ -136,7 +137,7 @@ static void hwmon_dev_release(struct device *dev) kfree(hwdev); } -static struct class hwmon_class = { +static const struct class hwmon_class = { .name = "hwmon", .dev_groups = hwmon_dev_attr_groups, .dev_release = hwmon_dev_release, @@ -144,13 +145,19 @@ static struct class hwmon_class = { static DEFINE_IDA(hwmon_ida); +static umode_t hwmon_is_visible(const struct hwmon_ops *ops, + const void *drvdata, + enum hwmon_sensor_types type, + u32 attr, int channel) +{ + if (ops->visible) + return ops->visible; + + return ops->is_visible(drvdata, type, attr, channel); +} + /* Thermal zone handling */ -/* - * The complex conditional is necessary to avoid a cyclic dependency - * between hwmon and thermal_sys modules. - */ -#ifdef CONFIG_THERMAL_OF static int hwmon_thermal_get_temp(struct thermal_zone_device *tz, int *temp) { struct hwmon_thermal_data *tdata = thermal_zone_device_priv(tz); @@ -256,6 +263,9 @@ static int hwmon_thermal_register_sensors(struct device *dev) void *drvdata = dev_get_drvdata(dev); int i; + if (!IS_ENABLED(CONFIG_THERMAL_OF)) + return 0; + for (i = 1; info[i]; i++) { int j; @@ -266,8 +276,8 @@ static int hwmon_thermal_register_sensors(struct device *dev) int err; if (!(info[i]->config[j] & HWMON_T_INPUT) || - !chip->ops->is_visible(drvdata, hwmon_temp, - hwmon_temp_input, j)) + !hwmon_is_visible(chip->ops, drvdata, hwmon_temp, + hwmon_temp_input, j)) continue; err = hwmon_thermal_add_sensor(dev, j); @@ -284,6 +294,9 @@ static void hwmon_thermal_notify(struct device *dev, int index) struct hwmon_device *hwdev = to_hwmon_device(dev); struct hwmon_thermal_data *tzdata; + if (!IS_ENABLED(CONFIG_THERMAL_OF)) + return; + list_for_each_entry(tzdata, &hwdev->tzdata, node) { if (tzdata->index == index) { thermal_zone_device_update(tzdata->tzd, @@ -292,23 +305,121 @@ static void hwmon_thermal_notify(struct device *dev, int index) } } -#else -static int hwmon_thermal_register_sensors(struct device *dev) +static int hwmon_attr_base(enum hwmon_sensor_types type) { - return 0; + if (type == hwmon_in || type == hwmon_intrusion) + return 0; + return 1; +} + +#if IS_REACHABLE(CONFIG_I2C) + +/* + * PEC support + * + * The 'pec' attribute is attached to I2C client devices. It is only provided + * if the i2c controller supports PEC. + * + * The mutex ensures that PEC configuration between i2c device and the hardware + * is consistent. Use a single mutex because attribute writes are supposed to be + * rare, and maintaining a separate mutex for each hardware monitoring device + * would add substantial complexity to the driver for little if any gain. + * + * The hardware monitoring device is identified as child of the i2c client + * device. This assumes that only a single hardware monitoring device is + * attached to an i2c client device. + */ + +static DEFINE_MUTEX(hwmon_pec_mutex); + +static int hwmon_match_device(struct device *dev, const void *data) +{ + return dev->class == &hwmon_class; } -static void hwmon_thermal_notify(struct device *dev, int index) { } +static ssize_t pec_show(struct device *dev, struct device_attribute *dummy, + char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); -#endif /* IS_REACHABLE(CONFIG_THERMAL) && ... */ + return sysfs_emit(buf, "%d\n", !!(client->flags & I2C_CLIENT_PEC)); +} -static int hwmon_attr_base(enum hwmon_sensor_types type) +static ssize_t pec_store(struct device *dev, struct device_attribute *devattr, + const char *buf, size_t count) { - if (type == hwmon_in || type == hwmon_intrusion) + struct i2c_client *client = to_i2c_client(dev); + struct hwmon_device *hwdev; + struct device *hdev; + bool val; + int err; + + err = kstrtobool(buf, &val); + if (err < 0) + return err; + + hdev = device_find_child(dev, NULL, hwmon_match_device); + if (!hdev) + return -ENODEV; + + mutex_lock(&hwmon_pec_mutex); + + /* + * If there is no write function, we assume that chip specific + * handling is not required. + */ + hwdev = to_hwmon_device(hdev); + if (hwdev->chip->ops->write) { + err = hwdev->chip->ops->write(hdev, hwmon_chip, hwmon_chip_pec, 0, val); + if (err && err != -EOPNOTSUPP) + goto unlock; + } + + if (!val) + client->flags &= ~I2C_CLIENT_PEC; + else + client->flags |= I2C_CLIENT_PEC; + + err = count; +unlock: + mutex_unlock(&hwmon_pec_mutex); + put_device(hdev); + + return err; +} + +static DEVICE_ATTR_RW(pec); + +static void hwmon_remove_pec(void *dev) +{ + device_remove_file(dev, &dev_attr_pec); +} + +static int hwmon_pec_register(struct device *hdev) +{ + struct i2c_client *client = i2c_verify_client(hdev->parent); + int err; + + if (!client) + return -EINVAL; + + if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_PEC)) return 0; - return 1; + + err = device_create_file(&client->dev, &dev_attr_pec); + if (err) + return err; + + return devm_add_action_or_reset(hdev, hwmon_remove_pec, &client->dev); } +#else /* CONFIG_I2C */ +static int hwmon_pec_register(struct device *hdev) +{ + return -EINVAL; +} +#endif /* CONFIG_I2C */ + /* sysfs attribute management */ static ssize_t hwmon_attr_show(struct device *dev, @@ -397,11 +508,7 @@ static struct attribute *hwmon_genattr(const void *drvdata, const char *name; bool is_string = is_string_attr(type, attr); - /* The attribute is invisible if there is no template string */ - if (!template) - return ERR_PTR(-ENOENT); - - mode = ops->is_visible(drvdata, type, attr, index); + mode = hwmon_is_visible(ops, drvdata, type, attr, index); if (!mode) return ERR_PTR(-ENOENT); @@ -539,8 +646,8 @@ static const char * const hwmon_power_attr_templates[] = { [hwmon_power_enable] = "power%d_enable", [hwmon_power_average] = "power%d_average", [hwmon_power_average_interval] = "power%d_average_interval", - [hwmon_power_average_interval_max] = "power%d_interval_max", - [hwmon_power_average_interval_min] = "power%d_interval_min", + [hwmon_power_average_interval_max] = "power%d_average_interval_max", + [hwmon_power_average_interval_min] = "power%d_average_interval_min", [hwmon_power_average_highest] = "power%d_average_highest", [hwmon_power_average_lowest] = "power%d_average_lowest", [hwmon_power_average_max] = "power%d_average_max", @@ -712,8 +819,8 @@ static int hwmon_genattrs(const void *drvdata, attr = __ffs(attr_mask); attr_mask &= ~BIT(attr); - if (attr >= template_size) - return -EINVAL; + if (attr >= template_size || !templates[attr]) + continue; /* attribute is invisible */ a = hwmon_genattr(drvdata, info->type, attr, i, templates[attr], ops); if (IS_ERR(a)) { @@ -849,16 +956,26 @@ __hwmon_device_register(struct device *dev, const char *name, void *drvdata, INIT_LIST_HEAD(&hwdev->tzdata); if (hdev->of_node && chip && chip->ops->read && - chip->info[0]->type == hwmon_chip && - (chip->info[0]->config[0] & HWMON_C_REGISTER_TZ)) { - err = hwmon_thermal_register_sensors(hdev); - if (err) { - device_unregister(hdev); - /* - * Don't worry about hwdev; hwmon_dev_release(), called - * from device_unregister(), will free it. - */ - goto ida_remove; + chip->info[0]->type == hwmon_chip) { + u32 config = chip->info[0]->config[0]; + + if (config & HWMON_C_REGISTER_TZ) { + err = hwmon_thermal_register_sensors(hdev); + if (err) { + device_unregister(hdev); + /* + * Don't worry about hwdev; hwmon_dev_release(), + * called from device_unregister(), will free it. + */ + goto ida_remove; + } + } + if (config & HWMON_C_PEC) { + err = hwmon_pec_register(hdev); + if (err) { + device_unregister(hdev); + goto ida_remove; + } } } @@ -918,7 +1035,7 @@ hwmon_device_register_with_info(struct device *dev, const char *name, if (!dev || !name || !chip) return ERR_PTR(-EINVAL); - if (!chip->ops || !chip->ops->is_visible || !chip->info) + if (!chip->ops || !(chip->ops->visible || chip->ops->is_visible) || !chip->info) return ERR_PTR(-EINVAL); return __hwmon_device_register(dev, name, drvdata, chip, extra_groups); @@ -948,7 +1065,7 @@ hwmon_device_register_for_thermal(struct device *dev, const char *name, return __hwmon_device_register(dev, name, drvdata, NULL, NULL); } -EXPORT_SYMBOL_NS_GPL(hwmon_device_register_for_thermal, HWMON_THERMAL); +EXPORT_SYMBOL_NS_GPL(hwmon_device_register_for_thermal, "HWMON_THERMAL"); /** * hwmon_device_register - register w/ hwmon @@ -1053,6 +1170,12 @@ devm_hwmon_device_register_with_info(struct device *dev, const char *name, if (!dev) return ERR_PTR(-EINVAL); + if (!name) { + name = devm_hwmon_sanitize_name(dev, dev_name(dev)); + if (IS_ERR(name)) + return ERR_CAST(name); + } + ptr = devres_alloc(devm_hwmon_release, sizeof(*ptr), GFP_KERNEL); if (!ptr) return ERR_PTR(-ENOMEM); @@ -1073,24 +1196,6 @@ error: } EXPORT_SYMBOL_GPL(devm_hwmon_device_register_with_info); -static int devm_hwmon_match(struct device *dev, void *res, void *data) -{ - struct device **hwdev = res; - - return *hwdev == data; -} - -/** - * devm_hwmon_device_unregister - removes a previously registered hwmon device - * - * @dev: the parent device of the device to unregister - */ -void devm_hwmon_device_unregister(struct device *dev) -{ - WARN_ON(devres_release(dev, devm_hwmon_release, devm_hwmon_match, dev)); -} -EXPORT_SYMBOL_GPL(devm_hwmon_device_unregister); - static char *__hwmon_sanitize_name(struct device *dev, const char *old_name) { char *name, *p; diff --git a/drivers/hwmon/i5500_temp.c b/drivers/hwmon/i5500_temp.c index 7b00b38c7f7b..2a530da21949 100644 --- a/drivers/hwmon/i5500_temp.c +++ b/drivers/hwmon/i5500_temp.c @@ -29,12 +29,6 @@ #define REG_CTCTRL 0xF7 #define REG_TSTIMER 0xF8 -static umode_t i5500_is_visible(const void *drvdata, enum hwmon_sensor_types type, u32 attr, - int channel) -{ - return 0444; -} - static int i5500_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, long *val) { @@ -84,7 +78,7 @@ static int i5500_read(struct device *dev, enum hwmon_sensor_types type, u32 attr } static const struct hwmon_ops i5500_ops = { - .is_visible = i5500_is_visible, + .visible = 0444, .read = i5500_read, }; diff --git a/drivers/hwmon/i5k_amb.c b/drivers/hwmon/i5k_amb.c index ff48913fe6bf..b22e0423e324 100644 --- a/drivers/hwmon/i5k_amb.c +++ b/drivers/hwmon/i5k_amb.c @@ -101,14 +101,7 @@ struct i5k_amb_data { unsigned int num_attrs; }; -static ssize_t name_show(struct device *dev, struct device_attribute *devattr, - char *buf) -{ - return sprintf(buf, "%s\n", DRVNAME); -} - - -static DEVICE_ATTR_RO(name); +static DEVICE_STRING_ATTR_RO(name, 0444, DRVNAME); static struct platform_device *amb_pdev; @@ -373,7 +366,7 @@ static int i5k_amb_hwmon_init(struct platform_device *pdev) } } - res = device_create_file(&pdev->dev, &dev_attr_name); + res = device_create_file(&pdev->dev, &dev_attr_name.attr); if (res) goto exit_remove; @@ -386,7 +379,7 @@ static int i5k_amb_hwmon_init(struct platform_device *pdev) return res; exit_remove: - device_remove_file(&pdev->dev, &dev_attr_name); + device_remove_file(&pdev->dev, &dev_attr_name.attr); for (i = 0; i < data->num_attrs; i++) device_remove_file(&pdev->dev, &data->attrs[i].s_attr.dev_attr); kfree(data->attrs); @@ -561,7 +554,7 @@ static void i5k_amb_remove(struct platform_device *pdev) struct i5k_amb_data *data = platform_get_drvdata(pdev); hwmon_device_unregister(data->hwmon_dev); - device_remove_file(&pdev->dev, &dev_attr_name); + device_remove_file(&pdev->dev, &dev_attr_name.attr); for (i = 0; i < data->num_attrs; i++) device_remove_file(&pdev->dev, &data->attrs[i].s_attr.dev_attr); kfree(data->attrs); @@ -575,7 +568,7 @@ static struct platform_driver i5k_amb_driver = { .name = DRVNAME, }, .probe = i5k_amb_probe, - .remove_new = i5k_amb_remove, + .remove = i5k_amb_remove, }; static int __init i5k_amb_init(void) diff --git a/drivers/hwmon/ibmpex.c b/drivers/hwmon/ibmpex.c index db066b368918..228c5f6c6f38 100644 --- a/drivers/hwmon/ibmpex.c +++ b/drivers/hwmon/ibmpex.c @@ -256,12 +256,7 @@ static struct ibmpex_bmc_data *get_bmc_data(int iface) return NULL; } -static ssize_t name_show(struct device *dev, struct device_attribute *devattr, - char *buf) -{ - return sprintf(buf, "%s\n", DRVNAME); -} -static SENSOR_DEVICE_ATTR_RO(name, name, 0); +static DEVICE_STRING_ATTR_RO(name, 0444, DRVNAME); static ssize_t ibmpex_show_sensor(struct device *dev, struct device_attribute *devattr, @@ -415,8 +410,7 @@ static int ibmpex_find_sensors(struct ibmpex_bmc_data *data) if (err) goto exit_remove; - err = device_create_file(data->bmc_device, - &sensor_dev_attr_name.dev_attr); + err = device_create_file(data->bmc_device, &dev_attr_name.attr); if (err) goto exit_remove; @@ -425,7 +419,7 @@ static int ibmpex_find_sensors(struct ibmpex_bmc_data *data) exit_remove: device_remove_file(data->bmc_device, &sensor_dev_attr_reset_high_low.dev_attr); - device_remove_file(data->bmc_device, &sensor_dev_attr_name.dev_attr); + device_remove_file(data->bmc_device, &dev_attr_name.attr); for (i = 0; i < data->num_sensors; i++) for (j = 0; j < PEX_NUM_SENSOR_FUNCS; j++) { if (!data->sensors[i].attr[j].dev_attr.attr.name) @@ -516,7 +510,7 @@ static void ibmpex_bmc_delete(struct ibmpex_bmc_data *data) device_remove_file(data->bmc_device, &sensor_dev_attr_reset_high_low.dev_attr); - device_remove_file(data->bmc_device, &sensor_dev_attr_name.dev_attr); + device_remove_file(data->bmc_device, &dev_attr_name.attr); for (i = 0; i < data->num_sensors; i++) for (j = 0; j < PEX_NUM_SENSOR_FUNCS; j++) { if (!data->sensors[i].attr[j].dev_attr.attr.name) diff --git a/drivers/hwmon/iio_hwmon.c b/drivers/hwmon/iio_hwmon.c index 4c8a80847891..e376d4cde5ad 100644 --- a/drivers/hwmon/iio_hwmon.c +++ b/drivers/hwmon/iio_hwmon.c @@ -33,6 +33,17 @@ struct iio_hwmon_state { struct attribute **attrs; }; +static ssize_t iio_hwmon_read_label(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + struct iio_hwmon_state *state = dev_get_drvdata(dev); + struct iio_channel *chan = &state->channels[sattr->index]; + + return iio_read_channel_label(chan, buf); +} + /* * Assumes that IIO and hwmon operate in the same base units. * This is supposed to be true, but needs verification for @@ -49,16 +60,17 @@ static ssize_t iio_hwmon_read_val(struct device *dev, struct iio_channel *chan = &state->channels[sattr->index]; enum iio_chan_type type; - ret = iio_read_channel_processed(chan, &result); - if (ret < 0) - return ret; - ret = iio_get_channel_type(chan, &type); if (ret < 0) return ret; if (type == IIO_POWER) - result *= 1000; /* mili-Watts to micro-Watts conversion */ + /* mili-Watts to micro-Watts conversion */ + ret = iio_read_channel_processed_scale(chan, &result, 1000); + else + ret = iio_read_channel_processed(chan, &result); + if (ret < 0) + return ret; return sprintf(buf, "%d\n", result); } @@ -68,12 +80,13 @@ static int iio_hwmon_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct iio_hwmon_state *st; struct sensor_device_attribute *a; - int ret, i; + int ret, i, attr = 0; int in_i = 1, temp_i = 1, curr_i = 1, humidity_i = 1, power_i = 1; enum iio_chan_type type; struct iio_channel *channels; struct device *hwmon_dev; char *sname; + void *buf; channels = devm_iio_channel_get_all(dev); if (IS_ERR(channels)) { @@ -85,17 +98,18 @@ static int iio_hwmon_probe(struct platform_device *pdev) } st = devm_kzalloc(dev, sizeof(*st), GFP_KERNEL); - if (st == NULL) + buf = (void *)devm_get_free_pages(dev, GFP_KERNEL, 0); + if (!st || !buf) return -ENOMEM; st->channels = channels; - /* count how many attributes we have */ + /* count how many channels we have */ while (st->channels[st->num_channels].indio_dev) st->num_channels++; st->attrs = devm_kcalloc(dev, - st->num_channels + 1, sizeof(*st->attrs), + 2 * st->num_channels + 1, sizeof(*st->attrs), GFP_KERNEL); if (st->attrs == NULL) return -ENOMEM; @@ -147,9 +161,31 @@ static int iio_hwmon_probe(struct platform_device *pdev) a->dev_attr.show = iio_hwmon_read_val; a->dev_attr.attr.mode = 0444; a->index = i; - st->attrs[i] = &a->dev_attr.attr; + st->attrs[attr++] = &a->dev_attr.attr; + + /* Let's see if we have a label... */ + if (iio_read_channel_label(&st->channels[i], buf) < 0) + continue; + + a = devm_kzalloc(dev, sizeof(*a), GFP_KERNEL); + if (a == NULL) + return -ENOMEM; + + sysfs_attr_init(&a->dev_attr.attr); + a->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL, + "%s%d_label", + prefix, n); + if (!a->dev_attr.attr.name) + return -ENOMEM; + + a->dev_attr.show = iio_hwmon_read_label; + a->dev_attr.attr.mode = 0444; + a->index = i; + st->attrs[attr++] = &a->dev_attr.attr; } + devm_free_pages(dev, (unsigned long)buf); + st->attr_group.attrs = st->attrs; st->groups[0] = &st->attr_group; diff --git a/drivers/hwmon/ina209.c b/drivers/hwmon/ina209.c index d9b57a4b3e41..bd7b3380d847 100644 --- a/drivers/hwmon/ina209.c +++ b/drivers/hwmon/ina209.c @@ -576,7 +576,7 @@ static void ina209_remove(struct i2c_client *client) } static const struct i2c_device_id ina209_id[] = { - { "ina209", 0 }, + { "ina209" }, { } }; MODULE_DEVICE_TABLE(i2c, ina209_id); diff --git a/drivers/hwmon/ina238.c b/drivers/hwmon/ina238.c index 69289293bc38..2d9f12f68d50 100644 --- a/drivers/hwmon/ina238.c +++ b/drivers/hwmon/ina238.c @@ -96,7 +96,7 @@ #define INA238_BUS_VOLTAGE_LSB 3125 /* 3.125 mV/lsb */ #define INA238_DIE_TEMP_LSB 125 /* 125 mC/lsb */ -static struct regmap_config ina238_regmap_config = { +static const struct regmap_config ina238_regmap_config = { .max_register = INA238_REGISTERS, .reg_bits = 8, .val_bits = 16, @@ -616,7 +616,7 @@ static int ina238_probe(struct i2c_client *client) } static const struct i2c_device_id ina238_id[] = { - { "ina238", 0 }, + { "ina238" }, { } }; MODULE_DEVICE_TABLE(i2c, ina238_id); diff --git a/drivers/hwmon/ina2xx.c b/drivers/hwmon/ina2xx.c index d8415d1f21fc..345fe7db9de9 100644 --- a/drivers/hwmon/ina2xx.c +++ b/drivers/hwmon/ina2xx.c @@ -22,21 +22,21 @@ * Thanks to Jan Volkering */ +#include <linux/bitfield.h> +#include <linux/bits.h> +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/err.h> +#include <linux/hwmon.h> +#include <linux/i2c.h> +#include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> -#include <linux/init.h> -#include <linux/err.h> +#include <linux/property.h> +#include <linux/regmap.h> #include <linux/slab.h> -#include <linux/i2c.h> -#include <linux/hwmon.h> -#include <linux/hwmon-sysfs.h> -#include <linux/jiffies.h> -#include <linux/of.h> -#include <linux/delay.h> +#include <linux/sysfs.h> #include <linux/util_macros.h> -#include <linux/regmap.h> - -#include <linux/platform_data/ina2xx.h> /* common register definitions */ #define INA2XX_CONFIG 0x00 @@ -51,59 +51,98 @@ #define INA226_ALERT_LIMIT 0x07 #define INA226_DIE_ID 0xFF -/* register count */ -#define INA219_REGISTERS 6 -#define INA226_REGISTERS 8 - -#define INA2XX_MAX_REGISTERS 8 +/* SY24655 register definitions */ +#define SY24655_EIN 0x0A +#define SY24655_ACCUM_CONFIG 0x0D +#define INA2XX_MAX_REGISTERS 0x0D /* settings - depend on use case */ #define INA219_CONFIG_DEFAULT 0x399F /* PGA=8 */ #define INA226_CONFIG_DEFAULT 0x4527 /* averages=16 */ +#define INA260_CONFIG_DEFAULT 0x6527 /* averages=16 */ +#define SY24655_CONFIG_DEFAULT 0x4527 /* averages=16 */ + +/* (only for sy24655) */ +#define SY24655_ACCUM_CONFIG_DEFAULT 0x044C /* continuous mode, clear after read*/ /* worst case is 68.10 ms (~14.6Hz, ina219) */ #define INA2XX_CONVERSION_RATE 15 #define INA2XX_MAX_DELAY 69 /* worst case delay in ms */ #define INA2XX_RSHUNT_DEFAULT 10000 +#define INA260_RSHUNT 2000 /* bit mask for reading the averaging setting in the configuration register */ -#define INA226_AVG_RD_MASK 0x0E00 +#define INA226_AVG_RD_MASK GENMASK(11, 9) -#define INA226_READ_AVG(reg) (((reg) & INA226_AVG_RD_MASK) >> 9) -#define INA226_SHIFT_AVG(val) ((val) << 9) +#define INA226_READ_AVG(reg) FIELD_GET(INA226_AVG_RD_MASK, reg) + +#define INA226_ALERT_LATCH_ENABLE BIT(0) +#define INA226_ALERT_POLARITY BIT(1) /* bit number of alert functions in Mask/Enable Register */ -#define INA226_SHUNT_OVER_VOLTAGE_BIT 15 -#define INA226_SHUNT_UNDER_VOLTAGE_BIT 14 -#define INA226_BUS_OVER_VOLTAGE_BIT 13 -#define INA226_BUS_UNDER_VOLTAGE_BIT 12 -#define INA226_POWER_OVER_LIMIT_BIT 11 +#define INA226_SHUNT_OVER_VOLTAGE_MASK BIT(15) +#define INA226_SHUNT_UNDER_VOLTAGE_MASK BIT(14) +#define INA226_BUS_OVER_VOLTAGE_MASK BIT(13) +#define INA226_BUS_UNDER_VOLTAGE_MASK BIT(12) +#define INA226_POWER_OVER_LIMIT_MASK BIT(11) /* bit mask for alert config bits of Mask/Enable Register */ -#define INA226_ALERT_CONFIG_MASK 0xFC00 +#define INA226_ALERT_CONFIG_MASK GENMASK(15, 10) #define INA226_ALERT_FUNCTION_FLAG BIT(4) -/* common attrs, ina226 attrs and NULL */ -#define INA2XX_MAX_ATTRIBUTE_GROUPS 3 - /* * Both bus voltage and shunt voltage conversion times for ina226 are set * to 0b0100 on POR, which translates to 2200 microseconds in total. */ #define INA226_TOTAL_CONV_TIME_DEFAULT 2200 -static struct regmap_config ina2xx_regmap_config = { +static bool ina2xx_writeable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case INA2XX_CONFIG: + case INA2XX_CALIBRATION: + case INA226_MASK_ENABLE: + case INA226_ALERT_LIMIT: + case SY24655_ACCUM_CONFIG: + return true; + default: + return false; + } +} + +static bool ina2xx_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case INA2XX_SHUNT_VOLTAGE: + case INA2XX_BUS_VOLTAGE: + case INA2XX_POWER: + case INA2XX_CURRENT: + return true; + default: + return false; + } +} + +static const struct regmap_config ina2xx_regmap_config = { .reg_bits = 8, .val_bits = 16, + .use_single_write = true, + .use_single_read = true, + .max_register = INA2XX_MAX_REGISTERS, + .cache_type = REGCACHE_MAPLE, + .volatile_reg = ina2xx_volatile_reg, + .writeable_reg = ina2xx_writeable_reg, }; -enum ina2xx_ids { ina219, ina226 }; +enum ina2xx_ids { ina219, ina226, ina260, sy24655 }; struct ina2xx_config { u16 config_default; + bool has_alerts; /* chip supports alerts and limits */ + bool has_ishunt; /* chip has internal shunt resistor */ + bool has_power_average; /* chip has internal shunt resistor */ int calibration_value; - int registers; int shunt_div; int bus_voltage_shift; int bus_voltage_lsb; /* uV */ @@ -112,34 +151,59 @@ struct ina2xx_config { struct ina2xx_data { const struct ina2xx_config *config; + enum ina2xx_ids chip; long rshunt; long current_lsb_uA; long power_lsb_uW; struct mutex config_lock; struct regmap *regmap; - - const struct attribute_group *groups[INA2XX_MAX_ATTRIBUTE_GROUPS]; + struct i2c_client *client; }; static const struct ina2xx_config ina2xx_config[] = { [ina219] = { .config_default = INA219_CONFIG_DEFAULT, .calibration_value = 4096, - .registers = INA219_REGISTERS, .shunt_div = 100, .bus_voltage_shift = 3, .bus_voltage_lsb = 4000, .power_lsb_factor = 20, + .has_alerts = false, + .has_ishunt = false, + .has_power_average = false, }, [ina226] = { .config_default = INA226_CONFIG_DEFAULT, .calibration_value = 2048, - .registers = INA226_REGISTERS, .shunt_div = 400, .bus_voltage_shift = 0, .bus_voltage_lsb = 1250, .power_lsb_factor = 25, + .has_alerts = true, + .has_ishunt = false, + .has_power_average = false, + }, + [ina260] = { + .config_default = INA260_CONFIG_DEFAULT, + .shunt_div = 400, + .bus_voltage_shift = 0, + .bus_voltage_lsb = 1250, + .power_lsb_factor = 8, + .has_alerts = true, + .has_ishunt = true, + .has_power_average = false, + }, + [sy24655] = { + .config_default = SY24655_CONFIG_DEFAULT, + .calibration_value = 4096, + .shunt_div = 400, + .bus_voltage_shift = 0, + .bus_voltage_lsb = 1250, + .power_lsb_factor = 25, + .has_alerts = true, + .has_ishunt = false, + .has_power_average = true, }, }; @@ -166,58 +230,85 @@ static int ina226_reg_to_interval(u16 config) * Return the new, shifted AVG field value of CONFIG register, * to use with regmap_update_bits */ -static u16 ina226_interval_to_reg(int interval) +static u16 ina226_interval_to_reg(long interval) { int avg, avg_bits; + /* + * The maximum supported interval is 1,024 * (2 * 8.244ms) ~= 16.8s. + * Clamp to 32 seconds before calculations to avoid overflows. + */ + interval = clamp_val(interval, 0, 32000); + avg = DIV_ROUND_CLOSEST(interval * 1000, INA226_TOTAL_CONV_TIME_DEFAULT); avg_bits = find_closest(avg, ina226_avg_tab, ARRAY_SIZE(ina226_avg_tab)); - return INA226_SHIFT_AVG(avg_bits); + return FIELD_PREP(INA226_AVG_RD_MASK, avg_bits); } -/* - * Calibration register is set to the best value, which eliminates - * truncation errors on calculating current register in hardware. - * According to datasheet (eq. 3) the best values are 2048 for - * ina226 and 4096 for ina219. They are hardcoded as calibration_value. - */ -static int ina2xx_calibrate(struct ina2xx_data *data) +static int ina2xx_get_value(struct ina2xx_data *data, u8 reg, + unsigned int regval) { - return regmap_write(data->regmap, INA2XX_CALIBRATION, - data->config->calibration_value); -} + int val; -/* - * Initialize the configuration and calibration registers. - */ -static int ina2xx_init(struct ina2xx_data *data) -{ - int ret = regmap_write(data->regmap, INA2XX_CONFIG, - data->config->config_default); - if (ret < 0) - return ret; + switch (reg) { + case INA2XX_SHUNT_VOLTAGE: + /* signed register */ + val = DIV_ROUND_CLOSEST((s16)regval, data->config->shunt_div); + break; + case INA2XX_BUS_VOLTAGE: + val = (regval >> data->config->bus_voltage_shift) * + data->config->bus_voltage_lsb; + val = DIV_ROUND_CLOSEST(val, 1000); + break; + case INA2XX_POWER: + val = regval * data->power_lsb_uW; + break; + case INA2XX_CURRENT: + /* signed register, result in mA */ + val = (s16)regval * data->current_lsb_uA; + val = DIV_ROUND_CLOSEST(val, 1000); + break; + case INA2XX_CALIBRATION: + val = regval; + break; + default: + /* programmer goofed */ + WARN_ON_ONCE(1); + val = 0; + break; + } - return ina2xx_calibrate(data); + return val; } -static int ina2xx_read_reg(struct device *dev, int reg, unsigned int *regval) +/* + * Read and convert register value from chip. If the register value is 0, + * check if the chip has been power cycled or reset. If so, re-initialize it. + */ +static int ina2xx_read_init(struct device *dev, int reg, long *val) { struct ina2xx_data *data = dev_get_drvdata(dev); + struct regmap *regmap = data->regmap; + unsigned int regval; int ret, retry; - dev_dbg(dev, "Starting register %d read\n", reg); + if (data->config->has_ishunt) { + /* No calibration needed */ + ret = regmap_read(regmap, reg, ®val); + if (ret < 0) + return ret; + *val = ina2xx_get_value(data, reg, regval); + return 0; + } for (retry = 5; retry; retry--) { - - ret = regmap_read(data->regmap, reg, regval); + ret = regmap_read(regmap, reg, ®val); if (ret < 0) return ret; - dev_dbg(dev, "read %d, val = 0x%04x\n", reg, *regval); - /* * If the current value in the calibration register is 0, the * power and current registers will also remain at 0. In case @@ -226,20 +317,19 @@ static int ina2xx_read_reg(struct device *dev, int reg, unsigned int *regval) * We do that extra read of the calibration register if there * is some hint of a chip reset. */ - if (*regval == 0) { + if (regval == 0) { unsigned int cal; - ret = regmap_read(data->regmap, INA2XX_CALIBRATION, - &cal); + ret = regmap_read_bypassed(regmap, INA2XX_CALIBRATION, &cal); if (ret < 0) return ret; if (cal == 0) { dev_warn(dev, "chip not calibrated, reinitializing\n"); - ret = ina2xx_init(data); - if (ret < 0) - return ret; + regcache_mark_dirty(regmap); + regcache_sync(regmap); + /* * Let's make sure the power and current * registers have been updated before trying @@ -249,6 +339,7 @@ static int ina2xx_read_reg(struct device *dev, int reg, unsigned int *regval) continue; } } + *val = ina2xx_get_value(data, reg, regval); return 0; } @@ -261,101 +352,31 @@ static int ina2xx_read_reg(struct device *dev, int reg, unsigned int *regval) return -ENODEV; } -static int ina2xx_get_value(struct ina2xx_data *data, u8 reg, - unsigned int regval) -{ - int val; - - switch (reg) { - case INA2XX_SHUNT_VOLTAGE: - /* signed register */ - val = DIV_ROUND_CLOSEST((s16)regval, data->config->shunt_div); - break; - case INA2XX_BUS_VOLTAGE: - val = (regval >> data->config->bus_voltage_shift) - * data->config->bus_voltage_lsb; - val = DIV_ROUND_CLOSEST(val, 1000); - break; - case INA2XX_POWER: - val = regval * data->power_lsb_uW; - break; - case INA2XX_CURRENT: - /* signed register, result in mA */ - val = (s16)regval * data->current_lsb_uA; - val = DIV_ROUND_CLOSEST(val, 1000); - break; - case INA2XX_CALIBRATION: - val = regval; - break; - default: - /* programmer goofed */ - WARN_ON_ONCE(1); - val = 0; - break; - } - - return val; -} - -static ssize_t ina2xx_value_show(struct device *dev, - struct device_attribute *da, char *buf) -{ - struct sensor_device_attribute *attr = to_sensor_dev_attr(da); - struct ina2xx_data *data = dev_get_drvdata(dev); - unsigned int regval; - - int err = ina2xx_read_reg(dev, attr->index, ®val); - - if (err < 0) - return err; - - return sysfs_emit(buf, "%d\n", ina2xx_get_value(data, attr->index, regval)); -} - -static int ina226_reg_to_alert(struct ina2xx_data *data, u8 bit, u16 regval) -{ - int reg; - - switch (bit) { - case INA226_SHUNT_OVER_VOLTAGE_BIT: - case INA226_SHUNT_UNDER_VOLTAGE_BIT: - reg = INA2XX_SHUNT_VOLTAGE; - break; - case INA226_BUS_OVER_VOLTAGE_BIT: - case INA226_BUS_UNDER_VOLTAGE_BIT: - reg = INA2XX_BUS_VOLTAGE; - break; - case INA226_POWER_OVER_LIMIT_BIT: - reg = INA2XX_POWER; - break; - default: - /* programmer goofed */ - WARN_ON_ONCE(1); - return 0; - } - - return ina2xx_get_value(data, reg, regval); -} - /* * Turns alert limit values into register values. * Opposite of the formula in ina2xx_get_value(). */ -static s16 ina226_alert_to_reg(struct ina2xx_data *data, u8 bit, int val) +static u16 ina226_alert_to_reg(struct ina2xx_data *data, int reg, long val) { - switch (bit) { - case INA226_SHUNT_OVER_VOLTAGE_BIT: - case INA226_SHUNT_UNDER_VOLTAGE_BIT: + switch (reg) { + case INA2XX_SHUNT_VOLTAGE: + val = clamp_val(val, 0, SHRT_MAX * data->config->shunt_div); val *= data->config->shunt_div; - return clamp_val(val, SHRT_MIN, SHRT_MAX); - case INA226_BUS_OVER_VOLTAGE_BIT: - case INA226_BUS_UNDER_VOLTAGE_BIT: + return clamp_val(val, 0, SHRT_MAX); + case INA2XX_BUS_VOLTAGE: + val = clamp_val(val, 0, 200000); val = (val * 1000) << data->config->bus_voltage_shift; val = DIV_ROUND_CLOSEST(val, data->config->bus_voltage_lsb); - return clamp_val(val, 0, SHRT_MAX); - case INA226_POWER_OVER_LIMIT_BIT: + return clamp_val(val, 0, USHRT_MAX); + case INA2XX_POWER: + val = clamp_val(val, 0, UINT_MAX - data->power_lsb_uW); val = DIV_ROUND_CLOSEST(val, data->power_lsb_uW); return clamp_val(val, 0, USHRT_MAX); + case INA2XX_CURRENT: + val = clamp_val(val, INT_MIN / 1000, INT_MAX / 1000); + /* signed register, result in mA */ + val = DIV_ROUND_CLOSEST(val * 1000, data->current_lsb_uA); + return clamp_val(val, SHRT_MIN, SHRT_MAX); default: /* programmer goofed */ WARN_ON_ONCE(1); @@ -363,45 +384,37 @@ static s16 ina226_alert_to_reg(struct ina2xx_data *data, u8 bit, int val) } } -static ssize_t ina226_alert_show(struct device *dev, - struct device_attribute *da, char *buf) +static int ina226_alert_limit_read(struct ina2xx_data *data, u32 mask, int reg, long *val) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(da); - struct ina2xx_data *data = dev_get_drvdata(dev); + struct regmap *regmap = data->regmap; int regval; - int val = 0; int ret; mutex_lock(&data->config_lock); - ret = regmap_read(data->regmap, INA226_MASK_ENABLE, ®val); + ret = regmap_read(regmap, INA226_MASK_ENABLE, ®val); if (ret) goto abort; - if (regval & BIT(attr->index)) { - ret = regmap_read(data->regmap, INA226_ALERT_LIMIT, ®val); + if (regval & mask) { + ret = regmap_read(regmap, INA226_ALERT_LIMIT, ®val); if (ret) goto abort; - val = ina226_reg_to_alert(data, attr->index, regval); + *val = ina2xx_get_value(data, reg, regval); + } else { + *val = 0; } - - ret = sysfs_emit(buf, "%d\n", val); abort: mutex_unlock(&data->config_lock); return ret; } -static ssize_t ina226_alert_store(struct device *dev, - struct device_attribute *da, - const char *buf, size_t count) +static int ina226_alert_limit_write(struct ina2xx_data *data, u32 mask, int reg, long val) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(da); - struct ina2xx_data *data = dev_get_drvdata(dev); - unsigned long val; + struct regmap *regmap = data->regmap; int ret; - ret = kstrtoul(buf, 10, &val); - if (ret < 0) - return ret; + if (val < 0) + return -EINVAL; /* * Clear all alerts first to avoid accidentally triggering ALERT pin @@ -409,246 +422,537 @@ static ssize_t ina226_alert_store(struct device *dev, * if the value is non-zero. */ mutex_lock(&data->config_lock); - ret = regmap_update_bits(data->regmap, INA226_MASK_ENABLE, + ret = regmap_update_bits(regmap, INA226_MASK_ENABLE, INA226_ALERT_CONFIG_MASK, 0); if (ret < 0) goto abort; - ret = regmap_write(data->regmap, INA226_ALERT_LIMIT, - ina226_alert_to_reg(data, attr->index, val)); + ret = regmap_write(regmap, INA226_ALERT_LIMIT, + ina226_alert_to_reg(data, reg, val)); if (ret < 0) goto abort; - if (val != 0) { - ret = regmap_update_bits(data->regmap, INA226_MASK_ENABLE, - INA226_ALERT_CONFIG_MASK, - BIT(attr->index)); - if (ret < 0) - goto abort; - } - - ret = count; + if (val) + ret = regmap_update_bits(regmap, INA226_MASK_ENABLE, + INA226_ALERT_CONFIG_MASK, mask); abort: mutex_unlock(&data->config_lock); return ret; } -static ssize_t ina226_alarm_show(struct device *dev, - struct device_attribute *da, char *buf) +static int ina2xx_chip_read(struct device *dev, u32 attr, long *val) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(da); struct ina2xx_data *data = dev_get_drvdata(dev); - int regval; - int alarm = 0; + u32 regval; int ret; - ret = regmap_read(data->regmap, INA226_MASK_ENABLE, ®val); + switch (attr) { + case hwmon_chip_update_interval: + ret = regmap_read(data->regmap, INA2XX_CONFIG, ®val); + if (ret) + return ret; + + *val = ina226_reg_to_interval(regval); + break; + default: + return -EOPNOTSUPP; + } + return 0; +} + +static int ina226_alert_read(struct regmap *regmap, u32 mask, long *val) +{ + unsigned int regval; + int ret; + + ret = regmap_read_bypassed(regmap, INA226_MASK_ENABLE, ®val); if (ret) return ret; - alarm = (regval & BIT(attr->index)) && - (regval & INA226_ALERT_FUNCTION_FLAG); - return sysfs_emit(buf, "%d\n", alarm); + *val = (regval & mask) && (regval & INA226_ALERT_FUNCTION_FLAG); + + return 0; +} + +static int ina2xx_in_read(struct device *dev, u32 attr, int channel, long *val) +{ + int voltage_reg = channel ? INA2XX_BUS_VOLTAGE : INA2XX_SHUNT_VOLTAGE; + u32 under_voltage_mask = channel ? INA226_BUS_UNDER_VOLTAGE_MASK + : INA226_SHUNT_UNDER_VOLTAGE_MASK; + u32 over_voltage_mask = channel ? INA226_BUS_OVER_VOLTAGE_MASK + : INA226_SHUNT_OVER_VOLTAGE_MASK; + struct ina2xx_data *data = dev_get_drvdata(dev); + struct regmap *regmap = data->regmap; + unsigned int regval; + int ret; + + switch (attr) { + case hwmon_in_input: + ret = regmap_read(regmap, voltage_reg, ®val); + if (ret) + return ret; + *val = ina2xx_get_value(data, voltage_reg, regval); + break; + case hwmon_in_lcrit: + return ina226_alert_limit_read(data, under_voltage_mask, + voltage_reg, val); + case hwmon_in_crit: + return ina226_alert_limit_read(data, over_voltage_mask, + voltage_reg, val); + case hwmon_in_lcrit_alarm: + return ina226_alert_read(regmap, under_voltage_mask, val); + case hwmon_in_crit_alarm: + return ina226_alert_read(regmap, over_voltage_mask, val); + default: + return -EOPNOTSUPP; + } + return 0; +} + +/* + * Configuring the READ_EIN (bit 10) of the ACCUM_CONFIG register to 1 + * can clear accumulator and sample_count after reading the EIN register. + * This way, the average power between the last read and the current + * read can be obtained. By combining with accurate time data from + * outside, the energy consumption during that period can be calculated. + */ +static int sy24655_average_power_read(struct ina2xx_data *data, u8 reg, long *val) +{ + u8 template[6]; + int ret; + long accumulator_24, sample_count; + + /* 48-bit register read */ + ret = i2c_smbus_read_i2c_block_data(data->client, reg, 6, template); + if (ret < 0) + return ret; + if (ret != 6) + return -EIO; + accumulator_24 = ((template[3] << 16) | + (template[4] << 8) | + template[5]); + sample_count = ((template[0] << 16) | + (template[1] << 8) | + template[2]); + if (sample_count <= 0) { + *val = 0; + return 0; + } + + *val = DIV_ROUND_CLOSEST(accumulator_24, sample_count) * data->power_lsb_uW; + + return 0; +} + +static int ina2xx_power_read(struct device *dev, u32 attr, long *val) +{ + struct ina2xx_data *data = dev_get_drvdata(dev); + + switch (attr) { + case hwmon_power_input: + return ina2xx_read_init(dev, INA2XX_POWER, val); + case hwmon_power_average: + return sy24655_average_power_read(data, SY24655_EIN, val); + case hwmon_power_crit: + return ina226_alert_limit_read(data, INA226_POWER_OVER_LIMIT_MASK, + INA2XX_POWER, val); + case hwmon_power_crit_alarm: + return ina226_alert_read(data->regmap, INA226_POWER_OVER_LIMIT_MASK, val); + default: + return -EOPNOTSUPP; + } +} + +static int ina2xx_curr_read(struct device *dev, u32 attr, long *val) +{ + struct ina2xx_data *data = dev_get_drvdata(dev); + struct regmap *regmap = data->regmap; + unsigned int regval; + int ret; + + /* + * While the chips supported by this driver do not directly support + * current limits, they do support setting shunt voltage limits. + * The shunt voltage divided by the shunt resistor value is the current. + * On top of that, calibration values are set such that in the shunt + * voltage register and the current register report the same values. + * That means we can report and configure current limits based on shunt + * voltage limits. + */ + switch (attr) { + case hwmon_curr_input: + /* + * Since the shunt voltage and the current register report the + * same values when the chip is calibrated, we can calculate + * the current directly from the shunt voltage without relying + * on chip calibration. + */ + ret = regmap_read(regmap, INA2XX_SHUNT_VOLTAGE, ®val); + if (ret) + return ret; + *val = ina2xx_get_value(data, INA2XX_CURRENT, regval); + return 0; + case hwmon_curr_lcrit: + return ina226_alert_limit_read(data, INA226_SHUNT_UNDER_VOLTAGE_MASK, + INA2XX_CURRENT, val); + case hwmon_curr_crit: + return ina226_alert_limit_read(data, INA226_SHUNT_OVER_VOLTAGE_MASK, + INA2XX_CURRENT, val); + case hwmon_curr_lcrit_alarm: + return ina226_alert_read(regmap, INA226_SHUNT_UNDER_VOLTAGE_MASK, val); + case hwmon_curr_crit_alarm: + return ina226_alert_read(regmap, INA226_SHUNT_OVER_VOLTAGE_MASK, val); + default: + return -EOPNOTSUPP; + } +} + +static int ina2xx_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + switch (type) { + case hwmon_chip: + return ina2xx_chip_read(dev, attr, val); + case hwmon_in: + return ina2xx_in_read(dev, attr, channel, val); + case hwmon_power: + return ina2xx_power_read(dev, attr, val); + case hwmon_curr: + return ina2xx_curr_read(dev, attr, val); + default: + return -EOPNOTSUPP; + } +} + +static int ina2xx_chip_write(struct device *dev, u32 attr, long val) +{ + struct ina2xx_data *data = dev_get_drvdata(dev); + + switch (attr) { + case hwmon_chip_update_interval: + return regmap_update_bits(data->regmap, INA2XX_CONFIG, + INA226_AVG_RD_MASK, + ina226_interval_to_reg(val)); + default: + return -EOPNOTSUPP; + } +} + +static int ina2xx_in_write(struct device *dev, u32 attr, int channel, long val) +{ + struct ina2xx_data *data = dev_get_drvdata(dev); + + switch (attr) { + case hwmon_in_lcrit: + return ina226_alert_limit_write(data, + channel ? INA226_BUS_UNDER_VOLTAGE_MASK : INA226_SHUNT_UNDER_VOLTAGE_MASK, + channel ? INA2XX_BUS_VOLTAGE : INA2XX_SHUNT_VOLTAGE, + val); + case hwmon_in_crit: + return ina226_alert_limit_write(data, + channel ? INA226_BUS_OVER_VOLTAGE_MASK : INA226_SHUNT_OVER_VOLTAGE_MASK, + channel ? INA2XX_BUS_VOLTAGE : INA2XX_SHUNT_VOLTAGE, + val); + default: + return -EOPNOTSUPP; + } + return 0; +} + +static int ina2xx_power_write(struct device *dev, u32 attr, long val) +{ + struct ina2xx_data *data = dev_get_drvdata(dev); + + switch (attr) { + case hwmon_power_crit: + return ina226_alert_limit_write(data, INA226_POWER_OVER_LIMIT_MASK, + INA2XX_POWER, val); + default: + return -EOPNOTSUPP; + } + return 0; +} + +static int ina2xx_curr_write(struct device *dev, u32 attr, long val) +{ + struct ina2xx_data *data = dev_get_drvdata(dev); + + switch (attr) { + case hwmon_curr_lcrit: + return ina226_alert_limit_write(data, INA226_SHUNT_UNDER_VOLTAGE_MASK, + INA2XX_CURRENT, val); + case hwmon_curr_crit: + return ina226_alert_limit_write(data, INA226_SHUNT_OVER_VOLTAGE_MASK, + INA2XX_CURRENT, val); + default: + return -EOPNOTSUPP; + } + return 0; +} + +static int ina2xx_write(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long val) +{ + switch (type) { + case hwmon_chip: + return ina2xx_chip_write(dev, attr, val); + case hwmon_in: + return ina2xx_in_write(dev, attr, channel, val); + case hwmon_power: + return ina2xx_power_write(dev, attr, val); + case hwmon_curr: + return ina2xx_curr_write(dev, attr, val); + default: + return -EOPNOTSUPP; + } +} + +static umode_t ina2xx_is_visible(const void *_data, enum hwmon_sensor_types type, + u32 attr, int channel) +{ + const struct ina2xx_data *data = _data; + bool has_alerts = data->config->has_alerts; + bool has_power_average = data->config->has_power_average; + enum ina2xx_ids chip = data->chip; + + switch (type) { + case hwmon_in: + switch (attr) { + case hwmon_in_input: + return 0444; + case hwmon_in_lcrit: + case hwmon_in_crit: + if (has_alerts) + return 0644; + break; + case hwmon_in_lcrit_alarm: + case hwmon_in_crit_alarm: + if (has_alerts) + return 0444; + break; + default: + break; + } + break; + case hwmon_curr: + switch (attr) { + case hwmon_curr_input: + return 0444; + case hwmon_curr_lcrit: + case hwmon_curr_crit: + if (has_alerts) + return 0644; + break; + case hwmon_curr_lcrit_alarm: + case hwmon_curr_crit_alarm: + if (has_alerts) + return 0444; + break; + default: + break; + } + break; + case hwmon_power: + switch (attr) { + case hwmon_power_input: + return 0444; + case hwmon_power_crit: + if (has_alerts) + return 0644; + break; + case hwmon_power_crit_alarm: + if (has_alerts) + return 0444; + break; + case hwmon_power_average: + if (has_power_average) + return 0444; + break; + default: + break; + } + break; + case hwmon_chip: + switch (attr) { + case hwmon_chip_update_interval: + if (chip == ina226 || chip == ina260) + return 0644; + break; + default: + break; + } + break; + default: + break; + } + return 0; } +static const struct hwmon_channel_info * const ina2xx_info[] = { + HWMON_CHANNEL_INFO(chip, + HWMON_C_UPDATE_INTERVAL), + HWMON_CHANNEL_INFO(in, + HWMON_I_INPUT | HWMON_I_CRIT | HWMON_I_CRIT_ALARM | + HWMON_I_LCRIT | HWMON_I_LCRIT_ALARM, + HWMON_I_INPUT | HWMON_I_CRIT | HWMON_I_CRIT_ALARM | + HWMON_I_LCRIT | HWMON_I_LCRIT_ALARM + ), + HWMON_CHANNEL_INFO(curr, HWMON_C_INPUT | HWMON_C_CRIT | HWMON_C_CRIT_ALARM | + HWMON_C_LCRIT | HWMON_C_LCRIT_ALARM), + HWMON_CHANNEL_INFO(power, + HWMON_P_INPUT | HWMON_P_CRIT | HWMON_P_CRIT_ALARM | + HWMON_P_AVERAGE), + NULL +}; + +static const struct hwmon_ops ina2xx_hwmon_ops = { + .is_visible = ina2xx_is_visible, + .read = ina2xx_read, + .write = ina2xx_write, +}; + +static const struct hwmon_chip_info ina2xx_chip_info = { + .ops = &ina2xx_hwmon_ops, + .info = ina2xx_info, +}; + +/* shunt resistance */ + /* * In order to keep calibration register value fixed, the product * of current_lsb and shunt_resistor should also be fixed and equal * to shunt_voltage_lsb = 1 / shunt_div multiplied by 10^9 in order * to keep the scale. */ -static int ina2xx_set_shunt(struct ina2xx_data *data, long val) +static int ina2xx_set_shunt(struct ina2xx_data *data, unsigned long val) { unsigned int dividend = DIV_ROUND_CLOSEST(1000000000, data->config->shunt_div); - if (val <= 0 || val > dividend) + if (!val || val > dividend) return -EINVAL; - mutex_lock(&data->config_lock); data->rshunt = val; data->current_lsb_uA = DIV_ROUND_CLOSEST(dividend, val); data->power_lsb_uW = data->config->power_lsb_factor * data->current_lsb_uA; - mutex_unlock(&data->config_lock); return 0; } -static ssize_t ina2xx_shunt_show(struct device *dev, - struct device_attribute *da, char *buf) +static ssize_t shunt_resistor_show(struct device *dev, + struct device_attribute *da, char *buf) { struct ina2xx_data *data = dev_get_drvdata(dev); return sysfs_emit(buf, "%li\n", data->rshunt); } -static ssize_t ina2xx_shunt_store(struct device *dev, - struct device_attribute *da, - const char *buf, size_t count) +static ssize_t shunt_resistor_store(struct device *dev, + struct device_attribute *da, + const char *buf, size_t count) { + struct ina2xx_data *data = dev_get_drvdata(dev); unsigned long val; int status; - struct ina2xx_data *data = dev_get_drvdata(dev); status = kstrtoul(buf, 10, &val); if (status < 0) return status; + mutex_lock(&data->config_lock); status = ina2xx_set_shunt(data, val); + mutex_unlock(&data->config_lock); if (status < 0) return status; return count; } -static ssize_t ina226_interval_store(struct device *dev, - struct device_attribute *da, - const char *buf, size_t count) -{ - struct ina2xx_data *data = dev_get_drvdata(dev); - unsigned long val; - int status; - - status = kstrtoul(buf, 10, &val); - if (status < 0) - return status; +static DEVICE_ATTR_RW(shunt_resistor); - if (val > INT_MAX || val == 0) - return -EINVAL; - - status = regmap_update_bits(data->regmap, INA2XX_CONFIG, - INA226_AVG_RD_MASK, - ina226_interval_to_reg(val)); - if (status < 0) - return status; - - return count; -} +/* pointers to created device attributes */ +static struct attribute *ina2xx_attrs[] = { + &dev_attr_shunt_resistor.attr, + NULL, +}; +ATTRIBUTE_GROUPS(ina2xx); -static ssize_t ina226_interval_show(struct device *dev, - struct device_attribute *da, char *buf) +/* + * Initialize chip + */ +static int ina2xx_init(struct device *dev, struct ina2xx_data *data) { - struct ina2xx_data *data = dev_get_drvdata(dev); - int status; - unsigned int regval; - - status = regmap_read(data->regmap, INA2XX_CONFIG, ®val); - if (status) - return status; - - return sysfs_emit(buf, "%d\n", ina226_reg_to_interval(regval)); -} - -/* shunt voltage */ -static SENSOR_DEVICE_ATTR_RO(in0_input, ina2xx_value, INA2XX_SHUNT_VOLTAGE); -/* shunt voltage over/under voltage alert setting and alarm */ -static SENSOR_DEVICE_ATTR_RW(in0_crit, ina226_alert, - INA226_SHUNT_OVER_VOLTAGE_BIT); -static SENSOR_DEVICE_ATTR_RW(in0_lcrit, ina226_alert, - INA226_SHUNT_UNDER_VOLTAGE_BIT); -static SENSOR_DEVICE_ATTR_RO(in0_crit_alarm, ina226_alarm, - INA226_SHUNT_OVER_VOLTAGE_BIT); -static SENSOR_DEVICE_ATTR_RO(in0_lcrit_alarm, ina226_alarm, - INA226_SHUNT_UNDER_VOLTAGE_BIT); - -/* bus voltage */ -static SENSOR_DEVICE_ATTR_RO(in1_input, ina2xx_value, INA2XX_BUS_VOLTAGE); -/* bus voltage over/under voltage alert setting and alarm */ -static SENSOR_DEVICE_ATTR_RW(in1_crit, ina226_alert, - INA226_BUS_OVER_VOLTAGE_BIT); -static SENSOR_DEVICE_ATTR_RW(in1_lcrit, ina226_alert, - INA226_BUS_UNDER_VOLTAGE_BIT); -static SENSOR_DEVICE_ATTR_RO(in1_crit_alarm, ina226_alarm, - INA226_BUS_OVER_VOLTAGE_BIT); -static SENSOR_DEVICE_ATTR_RO(in1_lcrit_alarm, ina226_alarm, - INA226_BUS_UNDER_VOLTAGE_BIT); - -/* calculated current */ -static SENSOR_DEVICE_ATTR_RO(curr1_input, ina2xx_value, INA2XX_CURRENT); - -/* calculated power */ -static SENSOR_DEVICE_ATTR_RO(power1_input, ina2xx_value, INA2XX_POWER); -/* over-limit power alert setting and alarm */ -static SENSOR_DEVICE_ATTR_RW(power1_crit, ina226_alert, - INA226_POWER_OVER_LIMIT_BIT); -static SENSOR_DEVICE_ATTR_RO(power1_crit_alarm, ina226_alarm, - INA226_POWER_OVER_LIMIT_BIT); + struct regmap *regmap = data->regmap; + u32 shunt; + int ret; -/* shunt resistance */ -static SENSOR_DEVICE_ATTR_RW(shunt_resistor, ina2xx_shunt, INA2XX_CALIBRATION); + if (data->config->has_ishunt) + shunt = INA260_RSHUNT; + else if (device_property_read_u32(dev, "shunt-resistor", &shunt) < 0) + shunt = INA2XX_RSHUNT_DEFAULT; -/* update interval (ina226 only) */ -static SENSOR_DEVICE_ATTR_RW(update_interval, ina226_interval, 0); + ret = ina2xx_set_shunt(data, shunt); + if (ret < 0) + return ret; -/* pointers to created device attributes */ -static struct attribute *ina2xx_attrs[] = { - &sensor_dev_attr_in0_input.dev_attr.attr, - &sensor_dev_attr_in1_input.dev_attr.attr, - &sensor_dev_attr_curr1_input.dev_attr.attr, - &sensor_dev_attr_power1_input.dev_attr.attr, - &sensor_dev_attr_shunt_resistor.dev_attr.attr, - NULL, -}; + ret = regmap_write(regmap, INA2XX_CONFIG, data->config->config_default); + if (ret < 0) + return ret; -static const struct attribute_group ina2xx_group = { - .attrs = ina2xx_attrs, -}; + if (data->config->has_alerts) { + bool active_high = device_property_read_bool(dev, "ti,alert-polarity-active-high"); -static struct attribute *ina226_attrs[] = { - &sensor_dev_attr_in0_crit.dev_attr.attr, - &sensor_dev_attr_in0_lcrit.dev_attr.attr, - &sensor_dev_attr_in0_crit_alarm.dev_attr.attr, - &sensor_dev_attr_in0_lcrit_alarm.dev_attr.attr, - &sensor_dev_attr_in1_crit.dev_attr.attr, - &sensor_dev_attr_in1_lcrit.dev_attr.attr, - &sensor_dev_attr_in1_crit_alarm.dev_attr.attr, - &sensor_dev_attr_in1_lcrit_alarm.dev_attr.attr, - &sensor_dev_attr_power1_crit.dev_attr.attr, - &sensor_dev_attr_power1_crit_alarm.dev_attr.attr, - &sensor_dev_attr_update_interval.dev_attr.attr, - NULL, -}; + regmap_update_bits(regmap, INA226_MASK_ENABLE, + INA226_ALERT_LATCH_ENABLE | INA226_ALERT_POLARITY, + INA226_ALERT_LATCH_ENABLE | + FIELD_PREP(INA226_ALERT_POLARITY, active_high)); + } + if (data->config->has_power_average) { + if (data->chip == sy24655) { + /* + * Initialize the power accumulation method to continuous + * mode and clear the EIN register after each read of the + * EIN register + */ + ret = regmap_write(regmap, SY24655_ACCUM_CONFIG, + SY24655_ACCUM_CONFIG_DEFAULT); + if (ret < 0) + return ret; + } + } -static const struct attribute_group ina226_group = { - .attrs = ina226_attrs, -}; + if (data->config->has_ishunt) + return 0; -static const struct i2c_device_id ina2xx_id[]; + /* + * Calibration register is set to the best value, which eliminates + * truncation errors on calculating current register in hardware. + * According to datasheet (eq. 3) the best values are 2048 for + * ina226 and 4096 for ina219. They are hardcoded as calibration_value. + */ + return regmap_write(regmap, INA2XX_CALIBRATION, + data->config->calibration_value); +} static int ina2xx_probe(struct i2c_client *client) { struct device *dev = &client->dev; struct ina2xx_data *data; struct device *hwmon_dev; - u32 val; - int ret, group = 0; enum ina2xx_ids chip; + int ret; - if (client->dev.of_node) - chip = (uintptr_t)of_device_get_match_data(&client->dev); - else - chip = i2c_match_id(ina2xx_id, client)->driver_data; + chip = (uintptr_t)i2c_get_match_data(client); data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; /* set the device type */ + data->client = client; data->config = &ina2xx_config[chip]; + data->chip = chip; mutex_init(&data->config_lock); - if (of_property_read_u32(dev->of_node, "shunt-resistor", &val) < 0) { - struct ina2xx_platform_data *pdata = dev_get_platdata(dev); - - if (pdata) - val = pdata->shunt_uohms; - else - val = INA2XX_RSHUNT_DEFAULT; - } - - ina2xx_set_shunt(data, val); - - ina2xx_regmap_config.max_register = data->config->registers; - data->regmap = devm_regmap_init_i2c(client, &ina2xx_regmap_config); if (IS_ERR(data->regmap)) { dev_err(dev, "failed to allocate register map\n"); @@ -659,18 +963,14 @@ static int ina2xx_probe(struct i2c_client *client) if (ret) return dev_err_probe(dev, ret, "failed to enable vs regulator\n"); - ret = ina2xx_init(data); - if (ret < 0) { - dev_err(dev, "error configuring the device: %d\n", ret); - return -ENODEV; - } - - data->groups[group++] = &ina2xx_group; - if (chip == ina226) - data->groups[group++] = &ina226_group; + ret = ina2xx_init(dev, data); + if (ret < 0) + return dev_err_probe(dev, ret, "failed to configure device\n"); - hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, - data, data->groups); + hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, + data, &ina2xx_chip_info, + data->config->has_ishunt ? + NULL : ina2xx_groups); if (IS_ERR(hwmon_dev)) return PTR_ERR(hwmon_dev); @@ -686,12 +986,18 @@ static const struct i2c_device_id ina2xx_id[] = { { "ina226", ina226 }, { "ina230", ina226 }, { "ina231", ina226 }, + { "ina260", ina260 }, + { "sy24655", sy24655 }, { } }; MODULE_DEVICE_TABLE(i2c, ina2xx_id); static const struct of_device_id __maybe_unused ina2xx_of_match[] = { { + .compatible = "silergy,sy24655", + .data = (void *)sy24655 + }, + { .compatible = "ti,ina219", .data = (void *)ina219 }, @@ -711,7 +1017,11 @@ static const struct of_device_id __maybe_unused ina2xx_of_match[] = { .compatible = "ti,ina231", .data = (void *)ina226 }, - { }, + { + .compatible = "ti,ina260", + .data = (void *)ina260 + }, + { } }; MODULE_DEVICE_TABLE(of, ina2xx_of_match); diff --git a/drivers/hwmon/ina3221.c b/drivers/hwmon/ina3221.c index 2c9530b6f192..ce0e3f214f5b 100644 --- a/drivers/hwmon/ina3221.c +++ b/drivers/hwmon/ina3221.c @@ -116,7 +116,6 @@ struct ina3221_input { * @fields: Register fields of the device * @inputs: Array of channel input source specific structures * @lock: mutex lock to serialize sysfs attribute accesses - * @debugfs: Pointer to debugfs entry for device * @reg_config: Register value of INA3221_CONFIG * @summation_shunt_resistor: equivalent shunt resistor value for summation * @summation_channel_control: Value written to SCC field in INA3221_MASK_ENABLE @@ -128,7 +127,6 @@ struct ina3221_data { struct regmap_field *fields[F_MAX_FIELDS]; struct ina3221_input inputs[INA3221_NUM_CHANNELS]; struct mutex lock; - struct dentry *debugfs; u32 reg_config; int summation_shunt_resistor; u32 summation_channel_control; @@ -813,7 +811,6 @@ static int ina3221_probe_child_from_dt(struct device *dev, static int ina3221_probe_from_dt(struct device *dev, struct ina3221_data *ina) { const struct device_node *np = dev->of_node; - struct device_node *child; int ret; /* Compatible with non-DT platforms */ @@ -822,12 +819,10 @@ static int ina3221_probe_from_dt(struct device *dev, struct ina3221_data *ina) ina->single_shot = of_property_read_bool(np, "ti,single-shot"); - for_each_child_of_node(np, child) { + for_each_child_of_node_scoped(np, child) { ret = ina3221_probe_child_from_dt(dev, child, ina); - if (ret) { - of_node_put(child); + if (ret) return ret; - } } return 0; @@ -916,12 +911,9 @@ static int ina3221_probe(struct i2c_client *client) goto fail; } - scnprintf(name, sizeof(name), "%s-%s", INA3221_DRIVER_NAME, dev_name(dev)); - ina->debugfs = debugfs_create_dir(name, NULL); - for (i = 0; i < INA3221_NUM_CHANNELS; i++) { scnprintf(name, sizeof(name), "in%d_summation_disable", i); - debugfs_create_bool(name, 0400, ina->debugfs, + debugfs_create_bool(name, 0400, client->debugfs, &ina->inputs[i].summation_disable); } @@ -943,8 +935,6 @@ static void ina3221_remove(struct i2c_client *client) struct ina3221_data *ina = dev_get_drvdata(&client->dev); int i; - debugfs_remove_recursive(ina->debugfs); - pm_runtime_disable(ina->pm_dev); pm_runtime_set_suspended(ina->pm_dev); @@ -1031,7 +1021,7 @@ static const struct of_device_id ina3221_of_match_table[] = { MODULE_DEVICE_TABLE(of, ina3221_of_match_table); static const struct i2c_device_id ina3221_ids[] = { - { "ina3221", 0 }, + { "ina3221" }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(i2c, ina3221_ids); diff --git a/drivers/hwmon/intel-m10-bmc-hwmon.c b/drivers/hwmon/intel-m10-bmc-hwmon.c index 6500ca548f9c..aa01a4bedc21 100644 --- a/drivers/hwmon/intel-m10-bmc-hwmon.c +++ b/drivers/hwmon/intel-m10-bmc-hwmon.c @@ -358,7 +358,7 @@ static const struct m10bmc_sdata n6000bmc_temp_tbl[] = { { 0x4f0, 0x4f4, 0x4f8, 0x52c, 0x0, 500, "Board Top Near FPGA Temperature" }, { 0x4fc, 0x500, 0x504, 0x52c, 0x0, 500, "Board Bottom Near CVL Temperature" }, { 0x508, 0x50c, 0x510, 0x52c, 0x0, 500, "Board Top East Near VRs Temperature" }, - { 0x514, 0x518, 0x51c, 0x52c, 0x0, 500, "Columbiaville Die Temperature" }, + { 0x514, 0x518, 0x51c, 0x52c, 0x0, 500, "CVL Die Temperature" }, { 0x520, 0x524, 0x528, 0x52c, 0x0, 500, "Board Rear Side Temperature" }, { 0x530, 0x534, 0x538, 0x52c, 0x0, 500, "Board Front Side Temperature" }, { 0x53c, 0x540, 0x544, 0x0, 0x0, 500, "QSFP1 Case Temperature" }, @@ -429,7 +429,7 @@ static const struct m10bmc_sdata n6000bmc_curr_tbl[] = { }; static const struct m10bmc_sdata n6000bmc_power_tbl[] = { - { 0x724, 0x0, 0x0, 0x0, 0x0, 1, "Board Power" }, + { 0x724, 0x0, 0x0, 0x0, 0x0, 1000, "Board Power" }, }; static const struct hwmon_channel_info * const n6000bmc_hinfo[] = { @@ -565,13 +565,6 @@ static const struct m10bmc_hwmon_board_data n6000bmc_hwmon_bdata = { .hinfo = n6000bmc_hinfo, }; -static umode_t -m10bmc_hwmon_is_visible(const void *data, enum hwmon_sensor_types type, - u32 attr, int channel) -{ - return 0444; -} - static const struct m10bmc_sdata * find_sensor_data(struct m10bmc_hwmon *hw, enum hwmon_sensor_types type, int channel) @@ -729,7 +722,7 @@ static int m10bmc_hwmon_read_string(struct device *dev, } static const struct hwmon_ops m10bmc_hwmon_ops = { - .is_visible = m10bmc_hwmon_is_visible, + .visible = 0444, .read = m10bmc_hwmon_read, .read_string = m10bmc_hwmon_read_string, }; @@ -794,4 +787,4 @@ MODULE_DEVICE_TABLE(platform, intel_m10bmc_hwmon_ids); MODULE_AUTHOR("Intel Corporation"); MODULE_DESCRIPTION("Intel MAX 10 BMC hardware monitor"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(INTEL_M10_BMC_CORE); +MODULE_IMPORT_NS("INTEL_M10_BMC_CORE"); diff --git a/drivers/hwmon/isl28022.c b/drivers/hwmon/isl28022.c new file mode 100644 index 000000000000..1fb9864635db --- /dev/null +++ b/drivers/hwmon/isl28022.c @@ -0,0 +1,492 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * isl28022.c - driver for Renesas ISL28022 power monitor chip monitoring + * + * Copyright (c) 2023 Carsten Spieß <mail@carsten-spiess.de> + */ + +#include <linux/debugfs.h> +#include <linux/err.h> +#include <linux/hwmon.h> +#include <linux/i2c.h> +#include <linux/module.h> +#include <linux/regmap.h> + +/* ISL28022 registers */ +#define ISL28022_REG_CONFIG 0x00 +#define ISL28022_REG_SHUNT 0x01 +#define ISL28022_REG_BUS 0x02 +#define ISL28022_REG_POWER 0x03 +#define ISL28022_REG_CURRENT 0x04 +#define ISL28022_REG_CALIB 0x05 +#define ISL28022_REG_SHUNT_THR 0x06 +#define ISL28022_REG_BUS_THR 0x07 +#define ISL28022_REG_INT 0x08 +#define ISL28022_REG_AUX 0x09 +#define ISL28022_REG_MAX ISL28022_REG_AUX + +/* ISL28022 config flags */ +/* mode flags */ +#define ISL28022_MODE_SHIFT 0 +#define ISL28022_MODE_MASK 0x0007 + +#define ISL28022_MODE_PWR_DOWN 0x0 +#define ISL28022_MODE_TRG_S 0x1 +#define ISL28022_MODE_TRG_B 0x2 +#define ISL28022_MODE_TRG_SB 0x3 +#define ISL28022_MODE_ADC_OFF 0x4 +#define ISL28022_MODE_CONT_S 0x5 +#define ISL28022_MODE_CONT_B 0x6 +#define ISL28022_MODE_CONT_SB 0x7 + +/* shunt ADC settings */ +#define ISL28022_SADC_SHIFT 3 +#define ISL28022_SADC_MASK 0x0078 + +#define ISL28022_BADC_SHIFT 7 +#define ISL28022_BADC_MASK 0x0780 + +#define ISL28022_ADC_12 0x0 /* 12 bit ADC */ +#define ISL28022_ADC_13 0x1 /* 13 bit ADC */ +#define ISL28022_ADC_14 0x2 /* 14 bit ADC */ +#define ISL28022_ADC_15 0x3 /* 15 bit ADC */ +#define ISL28022_ADC_15_1 0x8 /* 15 bit ADC, 1 sample */ +#define ISL28022_ADC_15_2 0x9 /* 15 bit ADC, 2 samples */ +#define ISL28022_ADC_15_4 0xA /* 15 bit ADC, 4 samples */ +#define ISL28022_ADC_15_8 0xB /* 15 bit ADC, 8 samples */ +#define ISL28022_ADC_15_16 0xC /* 15 bit ADC, 16 samples */ +#define ISL28022_ADC_15_32 0xD /* 15 bit ADC, 32 samples */ +#define ISL28022_ADC_15_64 0xE /* 15 bit ADC, 64 samples */ +#define ISL28022_ADC_15_128 0xF /* 15 bit ADC, 128 samples */ + +/* shunt voltage range */ +#define ISL28022_PG_SHIFT 11 +#define ISL28022_PG_MASK 0x1800 + +#define ISL28022_PG_40 0x0 /* +/-40 mV */ +#define ISL28022_PG_80 0x1 /* +/-80 mV */ +#define ISL28022_PG_160 0x2 /* +/-160 mV */ +#define ISL28022_PG_320 0x3 /* +/-3200 mV */ + +/* bus voltage range */ +#define ISL28022_BRNG_SHIFT 13 +#define ISL28022_BRNG_MASK 0x6000 + +#define ISL28022_BRNG_16 0x0 /* 16 V */ +#define ISL28022_BRNG_32 0x1 /* 32 V */ +#define ISL28022_BRNG_60 0x3 /* 60 V */ + +/* reset */ +#define ISL28022_RESET 0x8000 + +struct isl28022_data { + struct regmap *regmap; + u32 shunt; + u32 gain; + u32 average; +}; + +static int isl28022_read_in(struct device *dev, u32 attr, int channel, long *val) +{ + struct isl28022_data *data = dev_get_drvdata(dev); + unsigned int regval; + int err; + u16 sign_bit; + + switch (channel) { + case 0: + switch (attr) { + case hwmon_in_input: + err = regmap_read(data->regmap, + ISL28022_REG_BUS, ®val); + if (err < 0) + return err; + /* driver supports only 60V mode (BRNG 11) */ + *val = (long)(((u16)regval) & 0xFFFC); + break; + default: + return -EOPNOTSUPP; + } + break; + case 1: + switch (attr) { + case hwmon_in_input: + err = regmap_read(data->regmap, + ISL28022_REG_SHUNT, ®val); + if (err < 0) + return err; + switch (data->gain) { + case 8: + sign_bit = (regval >> 15) & 0x01; + *val = (long)((((u16)regval) & 0x7FFF) - + (sign_bit * 32768)) / 100; + break; + case 4: + sign_bit = (regval >> 14) & 0x01; + *val = (long)((((u16)regval) & 0x3FFF) - + (sign_bit * 16384)) / 100; + break; + case 2: + sign_bit = (regval >> 13) & 0x01; + *val = (long)((((u16)regval) & 0x1FFF) - + (sign_bit * 8192)) / 100; + break; + case 1: + sign_bit = (regval >> 12) & 0x01; + *val = (long)((((u16)regval) & 0x0FFF) - + (sign_bit * 4096)) / 100; + break; + } + break; + default: + return -EOPNOTSUPP; + } + break; + default: + return -EOPNOTSUPP; + } + + return 0; +} + +static int isl28022_read_current(struct device *dev, u32 attr, long *val) +{ + struct isl28022_data *data = dev_get_drvdata(dev); + unsigned int regval; + int err; + + switch (attr) { + case hwmon_curr_input: + err = regmap_read(data->regmap, + ISL28022_REG_CURRENT, ®val); + if (err < 0) + return err; + *val = ((long)regval * 1250L * (long)data->gain) / + (long)data->shunt; + break; + default: + return -EOPNOTSUPP; + } + + return 0; +} + +static int isl28022_read_power(struct device *dev, u32 attr, long *val) +{ + struct isl28022_data *data = dev_get_drvdata(dev); + unsigned int regval; + int err; + + switch (attr) { + case hwmon_power_input: + err = regmap_read(data->regmap, + ISL28022_REG_POWER, ®val); + if (err < 0) + return err; + *val = ((51200000L * ((long)data->gain)) / + (long)data->shunt) * (long)regval; + break; + default: + return -EOPNOTSUPP; + } + + return 0; +} + +static int isl28022_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + switch (type) { + case hwmon_in: + return isl28022_read_in(dev, attr, channel, val); + case hwmon_curr: + return isl28022_read_current(dev, attr, val); + case hwmon_power: + return isl28022_read_power(dev, attr, val); + default: + return -EOPNOTSUPP; + } + return 0; +} + +static umode_t isl28022_is_visible(const void *data, enum hwmon_sensor_types type, + u32 attr, int channel) +{ + switch (type) { + case hwmon_in: + switch (attr) { + case hwmon_in_input: + return 0444; + default: + break; + } + break; + case hwmon_curr: + switch (attr) { + case hwmon_curr_input: + return 0444; + default: + break; + } + break; + case hwmon_power: + switch (attr) { + case hwmon_power_input: + return 0444; + default: + break; + } + break; + default: + break; + } + return 0; +} + +static const struct hwmon_channel_info *isl28022_info[] = { + HWMON_CHANNEL_INFO(in, + HWMON_I_INPUT, /* channel 0: bus voltage (mV) */ + HWMON_I_INPUT), /* channel 1: shunt voltage (mV) */ + HWMON_CHANNEL_INFO(curr, + HWMON_C_INPUT), /* channel 1: current (mA) */ + HWMON_CHANNEL_INFO(power, + HWMON_P_INPUT), /* channel 1: power (µW) */ + NULL +}; + +static const struct hwmon_ops isl28022_hwmon_ops = { + .is_visible = isl28022_is_visible, + .read = isl28022_read, +}; + +static const struct hwmon_chip_info isl28022_chip_info = { + .ops = &isl28022_hwmon_ops, + .info = isl28022_info, +}; + +static bool isl28022_is_writeable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case ISL28022_REG_CONFIG: + case ISL28022_REG_CALIB: + case ISL28022_REG_SHUNT_THR: + case ISL28022_REG_BUS_THR: + case ISL28022_REG_INT: + case ISL28022_REG_AUX: + return true; + } + + return false; +} + +static bool isl28022_is_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case ISL28022_REG_CONFIG: + case ISL28022_REG_SHUNT: + case ISL28022_REG_BUS: + case ISL28022_REG_POWER: + case ISL28022_REG_CURRENT: + case ISL28022_REG_INT: + case ISL28022_REG_AUX: + return true; + } + return true; +} + +static const struct regmap_config isl28022_regmap_config = { + .reg_bits = 8, + .val_bits = 16, + .max_register = ISL28022_REG_MAX, + .writeable_reg = isl28022_is_writeable_reg, + .volatile_reg = isl28022_is_volatile_reg, + .val_format_endian = REGMAP_ENDIAN_BIG, + .cache_type = REGCACHE_RBTREE, + .use_single_read = true, + .use_single_write = true, +}; + +static int shunt_voltage_show(struct seq_file *seqf, void *unused) +{ + struct isl28022_data *data = seqf->private; + unsigned int regval; + int err; + + err = regmap_read(data->regmap, + ISL28022_REG_SHUNT, ®val); + if (err) + return err; + + /* print shunt voltage in micro volt */ + seq_printf(seqf, "%d\n", regval * 10); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(shunt_voltage); + +/* + * read property values and make consistency checks. + * + * following values for shunt range and resistor are allowed: + * 40 mV -> gain 1, shunt min. 800 micro ohms + * 80 mV -> gain 2, shunt min. 1600 micro ohms + * 160 mV -> gain 4, shunt min. 3200 micro ohms + * 320 mV -> gain 8, shunt min. 6400 micro ohms + */ +static int isl28022_read_properties(struct device *dev, struct isl28022_data *data) +{ + u32 val; + int err; + + err = device_property_read_u32(dev, "shunt-resistor-micro-ohms", &val); + if (err == -EINVAL) + val = 10000; + else if (err < 0) + return err; + data->shunt = val; + + err = device_property_read_u32(dev, "renesas,shunt-range-microvolt", &val); + if (err == -EINVAL) + val = 320000; + else if (err < 0) + return err; + + switch (val) { + case 40000: + data->gain = 1; + if (data->shunt < 800) + goto shunt_invalid; + break; + case 80000: + data->gain = 2; + if (data->shunt < 1600) + goto shunt_invalid; + break; + case 160000: + data->gain = 4; + if (data->shunt < 3200) + goto shunt_invalid; + break; + case 320000: + data->gain = 8; + if (data->shunt < 6400) + goto shunt_invalid; + break; + default: + return dev_err_probe(dev, -EINVAL, + "renesas,shunt-range-microvolt invalid value %d\n", + val); + } + + err = device_property_read_u32(dev, "renesas,average-samples", &val); + if (err == -EINVAL) + val = 1; + else if (err < 0) + return err; + if (val > 128 || hweight32(val) != 1) + return dev_err_probe(dev, -EINVAL, + "renesas,average-samples invalid value %d\n", + val); + + data->average = val; + + return 0; + +shunt_invalid: + return dev_err_probe(dev, -EINVAL, + "renesas,shunt-resistor-microvolt invalid value %d\n", + data->shunt); +} + +/* + * write configuration and calibration registers + * + * The driver supports only shunt and bus continuous ADC mode at 15bit resolution + * with averaging from 1 to 128 samples (pow of 2) on both channels. + * Shunt voltage gain 1,2,4 or 8 is allowed. + * The bus voltage range is 60V fixed. + */ +static int isl28022_config(struct isl28022_data *data) +{ + int err; + u16 config; + u16 calib; + + config = (ISL28022_MODE_CONT_SB << ISL28022_MODE_SHIFT) | + (ISL28022_BRNG_60 << ISL28022_BRNG_SHIFT) | + (__ffs(data->gain) << ISL28022_PG_SHIFT) | + ((ISL28022_ADC_15_1 + __ffs(data->average)) << ISL28022_SADC_SHIFT) | + ((ISL28022_ADC_15_1 + __ffs(data->average)) << ISL28022_BADC_SHIFT); + + calib = data->shunt ? 0x8000 / data->gain : 0; + + err = regmap_write(data->regmap, ISL28022_REG_CONFIG, config); + if (err < 0) + return err; + + return regmap_write(data->regmap, ISL28022_REG_CALIB, calib); +} + +static int isl28022_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + struct device *hwmon_dev; + struct isl28022_data *data; + int err; + + if (!i2c_check_functionality(client->adapter, + I2C_FUNC_SMBUS_BYTE_DATA | + I2C_FUNC_SMBUS_WORD_DATA)) + return -ENODEV; + + data = devm_kzalloc(dev, sizeof(struct isl28022_data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + err = isl28022_read_properties(dev, data); + if (err) + return err; + + data->regmap = devm_regmap_init_i2c(client, &isl28022_regmap_config); + if (IS_ERR(data->regmap)) + return PTR_ERR(data->regmap); + + err = isl28022_config(data); + if (err) + return err; + + debugfs_create_file("shunt_voltage", 0444, client->debugfs, data, &shunt_voltage_fops); + + hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, + data, &isl28022_chip_info, NULL); + if (IS_ERR(hwmon_dev)) + return PTR_ERR(hwmon_dev); + + return 0; +} + +static const struct i2c_device_id isl28022_ids[] = { + { "isl28022" }, + { /* LIST END */ } +}; +MODULE_DEVICE_TABLE(i2c, isl28022_ids); + +static const struct of_device_id __maybe_unused isl28022_of_match[] = { + { .compatible = "renesas,isl28022"}, + { /* LIST END */ } +}; +MODULE_DEVICE_TABLE(of, isl28022_of_match); + +static struct i2c_driver isl28022_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "isl28022", + }, + .probe = isl28022_probe, + .id_table = isl28022_ids, +}; +module_i2c_driver(isl28022_driver); + +MODULE_AUTHOR("Carsten Spieß <mail@carsten-spiess.de>"); +MODULE_DESCRIPTION("ISL28022 driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c index fbe86cec6055..e233aafa8856 100644 --- a/drivers/hwmon/it87.c +++ b/drivers/hwmon/it87.c @@ -117,7 +117,7 @@ static inline void superio_select(int ioreg, int ldn) outb(ldn, ioreg + 1); } -static inline int superio_enter(int ioreg) +static inline int superio_enter(int ioreg, bool noentry) { /* * Try to reserve ioreg and ioreg + 1 for exclusive access. @@ -125,7 +125,8 @@ static inline int superio_enter(int ioreg) if (!request_muxed_region(ioreg, 2, DRVNAME)) return -EBUSY; - __superio_enter(ioreg); + if (!noentry) + __superio_enter(ioreg); return 0; } @@ -320,7 +321,7 @@ struct it87_devices { * second SIO address. Never exit configuration mode on these * chips to avoid the problem. */ -#define FEAT_CONF_NOEXIT BIT(19) /* Chip should not exit conf mode */ +#define FEAT_NOCONF BIT(19) /* Chip conf mode enabled on startup */ #define FEAT_FOUR_FANS BIT(20) /* Supports four fans */ #define FEAT_FOUR_PWM BIT(21) /* Supports four fan controls */ #define FEAT_FOUR_TEMP BIT(22) @@ -452,7 +453,7 @@ static const struct it87_devices it87_devices[] = { .model = "IT8790E", .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL - | FEAT_PWM_FREQ2 | FEAT_FANCTL_ONOFF | FEAT_CONF_NOEXIT, + | FEAT_PWM_FREQ2 | FEAT_FANCTL_ONOFF | FEAT_NOCONF, .peci_mask = 0x07, }, [it8792] = { @@ -461,7 +462,7 @@ static const struct it87_devices it87_devices[] = { .features = FEAT_NEWER_AUTOPWM | FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_TEMP_OLD_PECI | FEAT_TEMP_PECI | FEAT_10_9MV_ADC | FEAT_IN7_INTERNAL | FEAT_FANCTL_ONOFF - | FEAT_CONF_NOEXIT, + | FEAT_NOCONF, .peci_mask = 0x07, .old_peci_mask = 0x02, /* Actually reports PCH */ }, @@ -507,7 +508,7 @@ static const struct it87_devices it87_devices[] = { .features = FEAT_NEWER_AUTOPWM | FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_TEMP_OLD_PECI | FEAT_TEMP_PECI | FEAT_10_9MV_ADC | FEAT_IN7_INTERNAL | FEAT_FANCTL_ONOFF - | FEAT_CONF_NOEXIT, + | FEAT_NOCONF, .peci_mask = 0x07, .old_peci_mask = 0x02, /* Actually reports PCH */ }, @@ -544,7 +545,7 @@ static const struct it87_devices it87_devices[] = { #define has_four_temp(data) ((data)->features & FEAT_FOUR_TEMP) #define has_six_temp(data) ((data)->features & FEAT_SIX_TEMP) #define has_vin3_5v(data) ((data)->features & FEAT_VIN3_5V) -#define has_conf_noexit(data) ((data)->features & FEAT_CONF_NOEXIT) +#define has_noconf(data) ((data)->features & FEAT_NOCONF) #define has_scaling(data) ((data)->features & (FEAT_12MV_ADC | \ FEAT_10_9MV_ADC)) #define has_fanctl_onoff(data) ((data)->features & FEAT_FANCTL_ONOFF) @@ -742,13 +743,13 @@ static int smbus_disable(struct it87_data *data) int err; if (data->smbus_bitmap) { - err = superio_enter(data->sioaddr); + err = superio_enter(data->sioaddr, has_noconf(data)); if (err) return err; superio_select(data->sioaddr, PME); superio_outb(data->sioaddr, IT87_SPECIAL_CFG_REG, data->ec_special_config & ~data->smbus_bitmap); - superio_exit(data->sioaddr, has_conf_noexit(data)); + superio_exit(data->sioaddr, has_noconf(data)); } return 0; } @@ -758,14 +759,14 @@ static int smbus_enable(struct it87_data *data) int err; if (data->smbus_bitmap) { - err = superio_enter(data->sioaddr); + err = superio_enter(data->sioaddr, has_noconf(data)); if (err) return err; superio_select(data->sioaddr, PME); superio_outb(data->sioaddr, IT87_SPECIAL_CFG_REG, data->ec_special_config); - superio_exit(data->sioaddr, has_conf_noexit(data)); + superio_exit(data->sioaddr, has_noconf(data)); } return 0; } @@ -2666,6 +2667,27 @@ static const struct attribute_group it87_group_auto_pwm = { .is_visible = it87_auto_pwm_is_visible, }; +/* + * Original explanation: + * On various Gigabyte AM4 boards (AB350, AX370), the second Super-IO chip + * (IT8792E) needs to be in configuration mode before accessing the first + * due to a bug in IT8792E which otherwise results in LPC bus access errors. + * This needs to be done before accessing the first Super-IO chip since + * the second chip may have been accessed prior to loading this driver. + * + * The problem is also reported to affect IT8795E, which is used on X299 boards + * and has the same chip ID as IT8792E (0x8733). It also appears to affect + * systems with IT8790E, which is used on some Z97X-Gaming boards as well as + * Z87X-OC. + * + * From other information supplied: + * ChipIDs 0x8733, 0x8695 (early ID for IT87952E) and 0x8790 are initialized + * and left in configuration mode, and entering and/or exiting configuration + * mode is what causes the crash. + * + * The recommendation is to look up the chipID before doing any mode swap + * and then act accordingly. + */ /* SuperIO detection - will change isa_address if a chip is found */ static int __init it87_find(int sioaddr, unsigned short *address, struct it87_sio_data *sio_data, int chip_cnt) @@ -2673,16 +2695,25 @@ static int __init it87_find(int sioaddr, unsigned short *address, int err; u16 chip_type; const struct it87_devices *config = NULL; + bool enabled = false; - err = superio_enter(sioaddr); + /* First step, lock memory but don't enter configuration mode */ + err = superio_enter(sioaddr, true); if (err) return err; err = -ENODEV; chip_type = superio_inw(sioaddr, DEVID); - /* check first for a valid chip before forcing chip id */ - if (chip_type == 0xffff) - goto exit; + /* Check for a valid chip before forcing chip id */ + if (chip_type == 0xffff) { + /* Enter configuration mode */ + __superio_enter(sioaddr); + enabled = true; + /* and then try again */ + chip_type = superio_inw(sioaddr, DEVID); + if (chip_type == 0xffff) + goto exit; + } if (force_id_cnt == 1) { /* If only one value given use for all chips */ @@ -2766,6 +2797,18 @@ static int __init it87_find(int sioaddr, unsigned short *address, config = &it87_devices[sio_data->type]; + /* + * If previously we didn't enter configuration mode and it isn't a + * chip we know is initialised in configuration mode, then enter + * configuration mode. + * + * I don't know if any such chips can exist but be defensive. + */ + if (!enabled && !has_noconf(config)) { + __superio_enter(sioaddr); + enabled = true; + } + superio_select(sioaddr, PME); if (!(superio_inb(sioaddr, IT87_ACT_REG) & 0x01)) { pr_info("Device (chip %s ioreg 0x%x) not activated, skipping\n", @@ -3143,7 +3186,7 @@ static int __init it87_find(int sioaddr, unsigned short *address, } exit: - superio_exit(sioaddr, config ? has_conf_noexit(config) : false); + superio_exit(sioaddr, !enabled); return err; } @@ -3520,7 +3563,7 @@ static void it87_resume_sio(struct platform_device *pdev) if (!data->need_in7_reroute) return; - err = superio_enter(data->sioaddr); + err = superio_enter(data->sioaddr, has_noconf(data)); if (err) { dev_warn(&pdev->dev, "Unable to enter Super I/O to reroute in7 (%d)", @@ -3540,7 +3583,7 @@ static void it87_resume_sio(struct platform_device *pdev) reg2c); } - superio_exit(data->sioaddr, has_conf_noexit(data)); + superio_exit(data->sioaddr, has_noconf(data)); } static int it87_resume(struct device *dev) @@ -3641,27 +3684,6 @@ static int it87_dmi_cb(const struct dmi_system_id *dmi_entry) } /* - * On various Gigabyte AM4 boards (AB350, AX370), the second Super-IO chip - * (IT8792E) needs to be in configuration mode before accessing the first - * due to a bug in IT8792E which otherwise results in LPC bus access errors. - * This needs to be done before accessing the first Super-IO chip since - * the second chip may have been accessed prior to loading this driver. - * - * The problem is also reported to affect IT8795E, which is used on X299 boards - * and has the same chip ID as IT8792E (0x8733). It also appears to affect - * systems with IT8790E, which is used on some Z97X-Gaming boards as well as - * Z87X-OC. - * DMI entries for those systems will be added as they become available and - * as the problem is confirmed to affect those boards. - */ -static int it87_sio_force(const struct dmi_system_id *dmi_entry) -{ - __superio_enter(REG_4E); - - return it87_dmi_cb(dmi_entry); -}; - -/* * On the Shuttle SN68PT, FAN_CTL2 is apparently not * connected to a fan, but to something else. One user * has reported instant system power-off when changing @@ -3683,34 +3705,7 @@ static struct it87_dmi_data nvidia_fn68pt = { .driver_data = data, \ } -#define IT87_DMI_MATCH_GBT(name, cb, data) \ - IT87_DMI_MATCH_VND("Gigabyte Technology Co., Ltd.", name, cb, data) - static const struct dmi_system_id it87_dmi_table[] __initconst = { - IT87_DMI_MATCH_GBT("AB350", it87_sio_force, NULL), - /* ? + IT8792E/IT8795E */ - IT87_DMI_MATCH_GBT("AX370", it87_sio_force, NULL), - /* ? + IT8792E/IT8795E */ - IT87_DMI_MATCH_GBT("Z97X-Gaming G1", it87_sio_force, NULL), - /* ? + IT8790E */ - IT87_DMI_MATCH_GBT("TRX40 AORUS XTREME", it87_sio_force, NULL), - /* IT8688E + IT8792E/IT8795E */ - IT87_DMI_MATCH_GBT("Z390 AORUS ULTRA-CF", it87_sio_force, NULL), - /* IT8688E + IT8792E/IT8795E */ - IT87_DMI_MATCH_GBT("B550 AORUS PRO AC", it87_sio_force, NULL), - /* IT8688E + IT8792E/IT8795E */ - IT87_DMI_MATCH_GBT("X570 AORUS MASTER", it87_sio_force, NULL), - /* IT8688E + IT8792E/IT8795E */ - IT87_DMI_MATCH_GBT("X570 AORUS PRO", it87_sio_force, NULL), - /* IT8688E + IT8792E/IT8795E */ - IT87_DMI_MATCH_GBT("X570 AORUS PRO WIFI", it87_sio_force, NULL), - /* IT8688E + IT8792E/IT8795E */ - IT87_DMI_MATCH_GBT("X570S AERO G", it87_sio_force, NULL), - /* IT8689E + IT87952E */ - IT87_DMI_MATCH_GBT("Z690 AORUS PRO DDR4", it87_sio_force, NULL), - /* IT8689E + IT87952E */ - IT87_DMI_MATCH_GBT("Z690 AORUS PRO", it87_sio_force, NULL), - /* IT8689E + IT87952E */ IT87_DMI_MATCH_VND("nVIDIA", "FN68PT", it87_dmi_cb, &nvidia_fn68pt), { } diff --git a/drivers/hwmon/jc42.c b/drivers/hwmon/jc42.c index 75dc25df0f8b..06f0ab2f52fa 100644 --- a/drivers/hwmon/jc42.c +++ b/drivers/hwmon/jc42.c @@ -11,6 +11,7 @@ #include <linux/bitops.h> #include <linux/bitfield.h> +#include <linux/mod_devicetable.h> #include <linux/module.h> #include <linux/init.h> #include <linux/slab.h> @@ -19,7 +20,6 @@ #include <linux/hwmon.h> #include <linux/err.h> #include <linux/mutex.h> -#include <linux/of.h> #include <linux/regmap.h> /* Addresses to scan */ @@ -79,20 +79,9 @@ static const unsigned short normal_i2c[] = { #define AT30TS00_DEVID 0x8201 #define AT30TS00_DEVID_MASK 0xffff -#define AT30TSE004_DEVID 0x2200 -#define AT30TSE004_DEVID_MASK 0xffff - -/* Giantec */ -#define GT30TS00_DEVID 0x2200 -#define GT30TS00_DEVID_MASK 0xff00 - #define GT34TS02_DEVID 0x3300 #define GT34TS02_DEVID_MASK 0xff00 -/* IDT */ -#define TSE2004_DEVID 0x2200 -#define TSE2004_DEVID_MASK 0xff00 - #define TS3000_DEVID 0x2900 /* Also matches TSE2002 */ #define TS3000_DEVID_MASK 0xff00 @@ -116,9 +105,6 @@ static const unsigned short normal_i2c[] = { #define MCP98243_DEVID 0x2100 #define MCP98243_DEVID_MASK 0xfffc -#define MCP98244_DEVID 0x2200 -#define MCP98244_DEVID_MASK 0xfffc - #define MCP9843_DEVID 0x0000 /* Also matches mcp9805 */ #define MCP9843_DEVID_MASK 0xfffe @@ -136,12 +122,6 @@ static const unsigned short normal_i2c[] = { #define CAT34TS02C_DEVID 0x0a00 #define CAT34TS02C_DEVID_MASK 0xfff0 -#define CAT34TS04_DEVID 0x2200 -#define CAT34TS04_DEVID_MASK 0xfff0 - -#define N34TS04_DEVID 0x2230 -#define N34TS04_DEVID_MASK 0xfff0 - /* ST Microelectronics */ #define STTS424_DEVID 0x0101 #define STTS424_DEVID_MASK 0xffff @@ -152,15 +132,12 @@ static const unsigned short normal_i2c[] = { #define STTS2002_DEVID 0x0300 #define STTS2002_DEVID_MASK 0xffff -#define STTS2004_DEVID 0x2201 -#define STTS2004_DEVID_MASK 0xffff - #define STTS3000_DEVID 0x0200 #define STTS3000_DEVID_MASK 0xffff -/* Seiko Instruments */ -#define S34TS04A_DEVID 0x2221 -#define S34TS04A_DEVID_MASK 0xffff +/* TSE2004 compliant sensors */ +#define TSE2004_DEVID 0x2200 +#define TSE2004_DEVID_MASK 0xff00 static u16 jc42_hysteresis[] = { 0, 1500, 3000, 6000 }; @@ -173,8 +150,8 @@ struct jc42_chips { static struct jc42_chips jc42_chips[] = { { ADT_MANID, ADT7408_DEVID, ADT7408_DEVID_MASK }, { ATMEL_MANID, AT30TS00_DEVID, AT30TS00_DEVID_MASK }, - { ATMEL_MANID2, AT30TSE004_DEVID, AT30TSE004_DEVID_MASK }, - { GT_MANID, GT30TS00_DEVID, GT30TS00_DEVID_MASK }, + { ATMEL_MANID2, TSE2004_DEVID, TSE2004_DEVID_MASK }, + { GT_MANID, TSE2004_DEVID, TSE2004_DEVID_MASK }, { GT_MANID2, GT34TS02_DEVID, GT34TS02_DEVID_MASK }, { IDT_MANID, TSE2004_DEVID, TSE2004_DEVID_MASK }, { IDT_MANID, TS3000_DEVID, TS3000_DEVID_MASK }, @@ -184,19 +161,19 @@ static struct jc42_chips jc42_chips[] = { { MCP_MANID, MCP9808_DEVID, MCP9808_DEVID_MASK }, { MCP_MANID, MCP98242_DEVID, MCP98242_DEVID_MASK }, { MCP_MANID, MCP98243_DEVID, MCP98243_DEVID_MASK }, - { MCP_MANID, MCP98244_DEVID, MCP98244_DEVID_MASK }, + { MCP_MANID, TSE2004_DEVID, TSE2004_DEVID_MASK }, { MCP_MANID, MCP9843_DEVID, MCP9843_DEVID_MASK }, { NXP_MANID, SE97_DEVID, SE97_DEVID_MASK }, { ONS_MANID, CAT6095_DEVID, CAT6095_DEVID_MASK }, { ONS_MANID, CAT34TS02C_DEVID, CAT34TS02C_DEVID_MASK }, - { ONS_MANID, CAT34TS04_DEVID, CAT34TS04_DEVID_MASK }, - { ONS_MANID, N34TS04_DEVID, N34TS04_DEVID_MASK }, + { ONS_MANID, TSE2004_DEVID, TSE2004_DEVID_MASK }, + { ONS_MANID, TSE2004_DEVID, TSE2004_DEVID_MASK }, { NXP_MANID, SE98_DEVID, SE98_DEVID_MASK }, - { SI_MANID, S34TS04A_DEVID, S34TS04A_DEVID_MASK }, + { SI_MANID, TSE2004_DEVID, TSE2004_DEVID_MASK }, { STM_MANID, STTS424_DEVID, STTS424_DEVID_MASK }, { STM_MANID, STTS424E_DEVID, STTS424E_DEVID_MASK }, { STM_MANID, STTS2002_DEVID, STTS2002_DEVID_MASK }, - { STM_MANID, STTS2004_DEVID, STTS2004_DEVID_MASK }, + { STM_MANID, TSE2004_DEVID, TSE2004_DEVID_MASK }, { STM_MANID, STTS3000_DEVID, STTS3000_DEVID_MASK }, }; @@ -436,7 +413,11 @@ static int jc42_detect(struct i2c_client *client, struct i2c_board_info *info) if (cap < 0 || config < 0 || manid < 0 || devid < 0) return -ENODEV; - if ((cap & 0xff00) || (config & 0xf800)) + if ((cap & 0xff00) || (config & 0xf820)) + return -ENODEV; + + if ((devid & TSE2004_DEVID_MASK) == TSE2004_DEVID && + (cap & 0x0062) != 0x0062) return -ENODEV; for (i = 0; i < ARRAY_SIZE(jc42_chips); i++) { @@ -609,25 +590,23 @@ static const struct dev_pm_ops jc42_dev_pm_ops = { #endif /* CONFIG_PM */ static const struct i2c_device_id jc42_id[] = { - { "jc42", 0 }, + { "jc42" }, { } }; MODULE_DEVICE_TABLE(i2c, jc42_id); -#ifdef CONFIG_OF static const struct of_device_id jc42_of_ids[] = { { .compatible = "jedec,jc-42.4-temp", }, { } }; MODULE_DEVICE_TABLE(of, jc42_of_ids); -#endif static struct i2c_driver jc42_driver = { - .class = I2C_CLASS_SPD | I2C_CLASS_HWMON, + .class = I2C_CLASS_HWMON, .driver = { .name = "jc42", .pm = JC42_DEV_PM_OPS, - .of_match_table = of_match_ptr(jc42_of_ids), + .of_match_table = jc42_of_ids, }, .probe = jc42_probe, .remove = jc42_remove, diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c index 8092312c0a87..472bcf6092f6 100644 --- a/drivers/hwmon/k10temp.c +++ b/drivers/hwmon/k10temp.c @@ -20,7 +20,7 @@ #include <linux/module.h> #include <linux/pci.h> #include <linux/pci_ids.h> -#include <asm/amd_nb.h> +#include <asm/amd/node.h> #include <asm/processor.h> MODULE_DESCRIPTION("AMD Family 10h+ CPU core temperature monitor"); @@ -101,7 +101,6 @@ struct k10temp_data { #define TCCD_BIT(x) ((x) + 2) #define HAVE_TEMP(d, channel) ((d)->show_temp & BIT(channel)) -#define HAVE_TDIE(d) HAVE_TEMP(d, TDIE_BIT) struct tctl_offset { u8 model; @@ -151,10 +150,23 @@ static void read_tempreg_nb_f15(struct pci_dev *pdev, u32 *regval) F15H_M60H_REPORTED_TEMP_CTRL_OFFSET, regval); } +static u16 amd_pci_dev_to_node_id(struct pci_dev *pdev) +{ + return PCI_SLOT(pdev->devfn) - AMD_NODE0_PCI_SLOT; +} + static void read_tempreg_nb_zen(struct pci_dev *pdev, u32 *regval) { - amd_smn_read(amd_pci_dev_to_node_id(pdev), - ZEN_REPORTED_TEMP_CTRL_BASE, regval); + if (amd_smn_read(amd_pci_dev_to_node_id(pdev), + ZEN_REPORTED_TEMP_CTRL_BASE, regval)) + *regval = 0; +} + +static int read_ccd_temp_reg(struct k10temp_data *data, int ccd, u32 *regval) +{ + u16 node_id = amd_pci_dev_to_node_id(data->pdev); + + return amd_smn_read(node_id, ZEN_CCD_TEMP(data->ccd_offset, ccd), regval); } static long get_raw_temp(struct k10temp_data *data) @@ -205,6 +217,7 @@ static int k10temp_read_temp(struct device *dev, u32 attr, int channel, long *val) { struct k10temp_data *data = dev_get_drvdata(dev); + int ret = -EOPNOTSUPP; u32 regval; switch (attr) { @@ -221,13 +234,15 @@ static int k10temp_read_temp(struct device *dev, u32 attr, int channel, *val = 0; break; case 2 ... 13: /* Tccd{1-12} */ - amd_smn_read(amd_pci_dev_to_node_id(data->pdev), - ZEN_CCD_TEMP(data->ccd_offset, channel - 2), - ®val); + ret = read_ccd_temp_reg(data, channel - 2, ®val); + + if (ret) + return ret; + *val = (regval & ZEN_CCD_TEMP_MASK) * 125 - 49000; break; default: - return -EOPNOTSUPP; + return ret; } break; case hwmon_temp_max: @@ -243,7 +258,7 @@ static int k10temp_read_temp(struct device *dev, u32 attr, int channel, - ((regval >> 24) & 0xf)) * 500 + 52000; break; default: - return -EOPNOTSUPP; + return ret; } return 0; } @@ -259,11 +274,11 @@ static int k10temp_read(struct device *dev, enum hwmon_sensor_types type, } } -static umode_t k10temp_is_visible(const void *_data, +static umode_t k10temp_is_visible(const void *drvdata, enum hwmon_sensor_types type, u32 attr, int channel) { - const struct k10temp_data *data = _data; + const struct k10temp_data *data = drvdata; struct pci_dev *pdev = data->pdev; u32 reg; @@ -374,15 +389,25 @@ static const struct hwmon_chip_info k10temp_chip_info = { .info = k10temp_info, }; -static void k10temp_get_ccd_support(struct pci_dev *pdev, - struct k10temp_data *data, int limit) +static void k10temp_get_ccd_support(struct k10temp_data *data, int limit) { u32 regval; int i; for (i = 0; i < limit; i++) { - amd_smn_read(amd_pci_dev_to_node_id(pdev), - ZEN_CCD_TEMP(data->ccd_offset, i), ®val); + /* + * Ignore inaccessible CCDs. + * + * Some systems will return a register value of 0, and the TEMP_VALID + * bit check below will naturally fail. + * + * Other systems will return a PCI_ERROR_RESPONSE (0xFFFFFFFF) for + * the register value. And this will incorrectly pass the TEMP_VALID + * bit check. + */ + if (read_ccd_temp_reg(data, i, ®val)) + continue; + if (regval & ZEN_CCD_TEMP_VALID) data->show_temp |= BIT(TCCD_BIT(i)); } @@ -418,71 +443,66 @@ static int k10temp_probe(struct pci_dev *pdev, const struct pci_device_id *id) data->disp_negative = true; } - if (boot_cpu_data.x86 == 0x15 && + data->is_zen = cpu_feature_enabled(X86_FEATURE_ZEN); + if (data->is_zen) { + data->temp_adjust_mask = ZEN_CUR_TEMP_RANGE_SEL_MASK; + data->read_tempreg = read_tempreg_nb_zen; + } else if (boot_cpu_data.x86 == 0x15 && ((boot_cpu_data.x86_model & 0xf0) == 0x60 || (boot_cpu_data.x86_model & 0xf0) == 0x70)) { data->read_htcreg = read_htcreg_nb_f15; data->read_tempreg = read_tempreg_nb_f15; - } else if (boot_cpu_data.x86 == 0x17 || boot_cpu_data.x86 == 0x18) { - data->temp_adjust_mask = ZEN_CUR_TEMP_RANGE_SEL_MASK; - data->read_tempreg = read_tempreg_nb_zen; - data->is_zen = true; + } else { + data->read_htcreg = read_htcreg_pci; + data->read_tempreg = read_tempreg_pci; + } + if (boot_cpu_data.x86 == 0x17 || boot_cpu_data.x86 == 0x18) { switch (boot_cpu_data.x86_model) { case 0x1: /* Zen */ case 0x8: /* Zen+ */ case 0x11: /* Zen APU */ case 0x18: /* Zen+ APU */ data->ccd_offset = 0x154; - k10temp_get_ccd_support(pdev, data, 4); + k10temp_get_ccd_support(data, 4); break; case 0x31: /* Zen2 Threadripper */ + case 0x47: /* Cyan Skillfish */ case 0x60: /* Renoir */ case 0x68: /* Lucienne */ case 0x71: /* Zen2 */ data->ccd_offset = 0x154; - k10temp_get_ccd_support(pdev, data, 8); + k10temp_get_ccd_support(data, 8); break; case 0xa0 ... 0xaf: data->ccd_offset = 0x300; - k10temp_get_ccd_support(pdev, data, 8); + k10temp_get_ccd_support(data, 8); break; } } else if (boot_cpu_data.x86 == 0x19) { - data->temp_adjust_mask = ZEN_CUR_TEMP_RANGE_SEL_MASK; - data->read_tempreg = read_tempreg_nb_zen; - data->is_zen = true; - switch (boot_cpu_data.x86_model) { case 0x0 ... 0x1: /* Zen3 SP3/TR */ case 0x8: /* Zen3 TR Chagall */ case 0x21: /* Zen3 Ryzen Desktop */ case 0x50 ... 0x5f: /* Green Sardine */ data->ccd_offset = 0x154; - k10temp_get_ccd_support(pdev, data, 8); + k10temp_get_ccd_support(data, 8); break; case 0x40 ... 0x4f: /* Yellow Carp */ data->ccd_offset = 0x300; - k10temp_get_ccd_support(pdev, data, 8); + k10temp_get_ccd_support(data, 8); break; case 0x60 ... 0x6f: case 0x70 ... 0x7f: data->ccd_offset = 0x308; - k10temp_get_ccd_support(pdev, data, 8); + k10temp_get_ccd_support(data, 8); break; case 0x10 ... 0x1f: case 0xa0 ... 0xaf: data->ccd_offset = 0x300; - k10temp_get_ccd_support(pdev, data, 12); + k10temp_get_ccd_support(data, 12); break; } - } else if (boot_cpu_data.x86 == 0x1a) { - data->temp_adjust_mask = ZEN_CUR_TEMP_RANGE_SEL_MASK; - data->read_tempreg = read_tempreg_nb_zen; - data->is_zen = true; - } else { - data->read_htcreg = read_htcreg_pci; - data->read_tempreg = read_tempreg_pci; } for (i = 0; i < ARRAY_SIZE(tctl_offset_table); i++) { @@ -516,6 +536,7 @@ static const struct pci_device_id k10temp_id_table[] = { { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_DF_F3) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_M10H_DF_F3) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_M30H_DF_F3) }, + { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_M40H_DF_F3) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_M60H_DF_F3) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_M70H_DF_F3) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_MA0H_DF_F3) }, @@ -528,6 +549,7 @@ static const struct pci_device_id k10temp_id_table[] = { { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_19H_M78H_DF_F3) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_1AH_M00H_DF_F3) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_1AH_M20H_DF_F3) }, + { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_1AH_M60H_DF_F3) }, { PCI_VDEVICE(HYGON, PCI_DEVICE_ID_AMD_17H_DF_F3) }, {} }; diff --git a/drivers/hwmon/lenovo-ec-sensors.c b/drivers/hwmon/lenovo-ec-sensors.c new file mode 100644 index 000000000000..143fb79713f7 --- /dev/null +++ b/drivers/hwmon/lenovo-ec-sensors.c @@ -0,0 +1,602 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * HWMON driver for Lenovo ThinkStation based workstations + * via the embedded controller registers + * + * Copyright (C) 2024 David Ober (Lenovo) <dober@lenovo.com> + * + * EC provides: + * - CPU temperature + * - DIMM temperature + * - Chassis zone temperatures + * - CPU fan RPM + * - DIMM fan RPM + * - Chassis fans RPM + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/acpi.h> +#include <linux/bits.h> +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/dmi.h> +#include <linux/err.h> +#include <linux/hwmon.h> +#include <linux/io.h> +#include <linux/ioport.h> +#include <linux/module.h> +#include <linux/mutex.h> +#include <linux/platform_device.h> +#include <linux/types.h> +#include <linux/units.h> + +#define MCHP_SING_IDX 0x0000 +#define MCHP_EMI0_APPLICATION_ID 0x090C +#define MCHP_EMI0_EC_ADDRESS 0x0902 +#define MCHP_EMI0_EC_DATA_BYTE0 0x0904 +#define MCHP_EMI0_EC_DATA_BYTE1 0x0905 +#define MCHP_EMI0_EC_DATA_BYTE2 0x0906 +#define MCHP_EMI0_EC_DATA_BYTE3 0x0907 +#define IO_REGION_START 0x0900 +#define IO_REGION_LENGTH 0xD + +static inline u8 +get_ec_reg(unsigned char page, unsigned char index) +{ + u8 onebyte; + unsigned short m_index; + unsigned short phy_index = page * 256 + index; + + outb_p(0x01, MCHP_EMI0_APPLICATION_ID); + + m_index = phy_index & GENMASK(14, 2); + outw_p(m_index, MCHP_EMI0_EC_ADDRESS); + + onebyte = inb_p(MCHP_EMI0_EC_DATA_BYTE0 + (phy_index & GENMASK(1, 0))); + + outb_p(0x01, MCHP_EMI0_APPLICATION_ID); /* write 0x01 again to clean */ + return onebyte; +} + +enum systems { + LENOVO_PX, + LENOVO_P7, + LENOVO_P5, + LENOVO_P8, +}; + +static int px_temp_map[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}; + +static const char * const lenovo_px_ec_temp_label[] = { + "CPU1", + "CPU2", + "R_DIMM1", + "L_DIMM1", + "R_DIMM2", + "L_DIMM2", + "PCH", + "M2_R", + "M2_Z1R", + "M2_Z2R", + "PCI_Z1", + "PCI_Z2", + "PCI_Z3", + "PCI_Z4", + "AMB", +}; + +static int gen_temp_map[] = {0, 2, 3, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}; + +static const char * const lenovo_gen_ec_temp_label[] = { + "CPU1", + "R_DIMM", + "L_DIMM", + "PCH", + "M2_R", + "M2_Z1R", + "M2_Z2R", + "PCI_Z1", + "PCI_Z2", + "PCI_Z3", + "PCI_Z4", + "AMB", +}; + +static int px_fan_map[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}; + +static const char * const px_ec_fan_label[] = { + "CPU1_Fan", + "CPU2_Fan", + "Front_Fan1-1", + "Front_Fan1-2", + "Front_Fan2", + "Front_Fan3", + "MEM_Fan1", + "MEM_Fan2", + "Rear_Fan1", + "Rear_Fan2", + "Flex_Bay_Fan1", + "Flex_Bay_Fan2", + "Flex_Bay_Fan2", + "PSU_HDD_Fan", + "PSU1_Fan", + "PSU2_Fan", +}; + +static int p7_fan_map[] = {0, 2, 3, 4, 5, 6, 7, 8, 10, 11, 14}; + +static const char * const p7_ec_fan_label[] = { + "CPU1_Fan", + "HP_CPU_Fan1", + "HP_CPU_Fan2", + "PCIE1_4_Fan", + "PCIE5_7_Fan", + "MEM_Fan1", + "MEM_Fan2", + "Rear_Fan1", + "BCB_Fan", + "Flex_Bay_Fan", + "PSU_Fan", +}; + +static int p5_fan_map[] = {0, 5, 6, 7, 8, 10, 11, 14}; + +static const char * const p5_ec_fan_label[] = { + "CPU_Fan", + "HDD_Fan", + "Duct_Fan1", + "MEM_Fan", + "Rear_Fan", + "Front_Fan", + "Flex_Bay_Fan", + "PSU_Fan", +}; + +static int p8_fan_map[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14}; + +static const char * const p8_ec_fan_label[] = { + "CPU1_Fan", + "CPU2_Fan", + "HP_CPU_Fan1", + "HP_CPU_Fan2", + "PCIE1_4_Fan", + "PCIE5_7_Fan", + "DIMM1_Fan1", + "DIMM1_Fan2", + "DIMM2_Fan1", + "DIMM2_Fan2", + "Rear_Fan", + "HDD_Bay_Fan", + "Flex_Bay_Fan", + "PSU_Fan", +}; + +struct ec_sensors_data { + struct mutex mec_mutex; /* lock for sensor data access */ + const char *const *fan_labels; + const char *const *temp_labels; + const int *fan_map; + const int *temp_map; +}; + +static int +lenovo_ec_do_read_temp(struct ec_sensors_data *data, u32 attr, int channel, long *val) +{ + u8 lsb; + + switch (attr) { + case hwmon_temp_input: + mutex_lock(&data->mec_mutex); + lsb = get_ec_reg(2, 0x81 + channel); + mutex_unlock(&data->mec_mutex); + if (lsb <= 0x40) + return -ENODATA; + *val = (lsb - 0x40) * 1000; + return 0; + default: + return -EOPNOTSUPP; + } +} + +static int +lenovo_ec_do_read_fan(struct ec_sensors_data *data, u32 attr, int channel, long *val) +{ + u8 lsb, msb; + + channel *= 2; + switch (attr) { + case hwmon_fan_input: + mutex_lock(&data->mec_mutex); + lsb = get_ec_reg(4, 0x20 + channel); + msb = get_ec_reg(4, 0x21 + channel); + mutex_unlock(&data->mec_mutex); + *val = (msb << 8) + lsb; + return 0; + case hwmon_fan_max: + mutex_lock(&data->mec_mutex); + lsb = get_ec_reg(4, 0x40 + channel); + msb = get_ec_reg(4, 0x41 + channel); + mutex_unlock(&data->mec_mutex); + *val = (msb << 8) + lsb; + return 0; + default: + return -EOPNOTSUPP; + } +} + +static int +lenovo_ec_hwmon_read_string(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, const char **str) +{ + struct ec_sensors_data *state = dev_get_drvdata(dev); + + switch (type) { + case hwmon_temp: + *str = state->temp_labels[channel]; + return 0; + case hwmon_fan: + *str = state->fan_labels[channel]; + return 0; + default: + return -EOPNOTSUPP; + } +} + +static int +lenovo_ec_hwmon_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + struct ec_sensors_data *data = dev_get_drvdata(dev); + + switch (type) { + case hwmon_temp: + return lenovo_ec_do_read_temp(data, attr, data->temp_map[channel], val); + case hwmon_fan: + return lenovo_ec_do_read_fan(data, attr, data->fan_map[channel], val); + default: + return -EOPNOTSUPP; + } +} + +static umode_t +lenovo_ec_hwmon_is_visible(const void *data, enum hwmon_sensor_types type, + u32 attr, int channel) +{ + switch (type) { + case hwmon_temp: + if (attr == hwmon_temp_input || attr == hwmon_temp_label) + return 0444; + return 0; + case hwmon_fan: + if (attr == hwmon_fan_input || attr == hwmon_fan_max || attr == hwmon_fan_label) + return 0444; + return 0; + default: + return 0; + } +} + +static const struct hwmon_channel_info *lenovo_ec_hwmon_info_px[] = { + HWMON_CHANNEL_INFO(temp, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL), + HWMON_CHANNEL_INFO(fan, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX), + NULL +}; + +static const struct hwmon_channel_info *lenovo_ec_hwmon_info_p8[] = { + HWMON_CHANNEL_INFO(temp, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL), + HWMON_CHANNEL_INFO(fan, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX), + NULL +}; + +static const struct hwmon_channel_info *lenovo_ec_hwmon_info_p7[] = { + HWMON_CHANNEL_INFO(temp, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL), + HWMON_CHANNEL_INFO(fan, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX), + NULL +}; + +static const struct hwmon_channel_info *lenovo_ec_hwmon_info_p5[] = { + HWMON_CHANNEL_INFO(temp, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL), + HWMON_CHANNEL_INFO(fan, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX, + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_MAX), + NULL +}; + +static const struct hwmon_ops lenovo_ec_hwmon_ops = { + .is_visible = lenovo_ec_hwmon_is_visible, + .read = lenovo_ec_hwmon_read, + .read_string = lenovo_ec_hwmon_read_string, +}; + +static struct hwmon_chip_info lenovo_ec_chip_info = { + .ops = &lenovo_ec_hwmon_ops, +}; + +static const struct dmi_system_id thinkstation_dmi_table[] = { + { + .ident = "LENOVO_PX", + .driver_data = (void *)(long)LENOVO_PX, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "30EU"), + }, + }, + { + .ident = "LENOVO_PX", + .driver_data = (void *)(long)LENOVO_PX, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "30EV"), + }, + }, + { + .ident = "LENOVO_P7", + .driver_data = (void *)(long)LENOVO_P7, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "30F2"), + }, + }, + { + .ident = "LENOVO_P7", + .driver_data = (void *)(long)LENOVO_P7, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "30F3"), + }, + }, + { + .ident = "LENOVO_P5", + .driver_data = (void *)(long)LENOVO_P5, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "30G9"), + }, + }, + { + .ident = "LENOVO_P5", + .driver_data = (void *)(long)LENOVO_P5, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "30GA"), + }, + }, + { + .ident = "LENOVO_P8", + .driver_data = (void *)(long)LENOVO_P8, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "30HH"), + }, + }, + { + .ident = "LENOVO_P8", + .driver_data = (void *)(long)LENOVO_P8, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "30HJ"), + }, + }, + {} +}; +MODULE_DEVICE_TABLE(dmi, thinkstation_dmi_table); + +static int lenovo_ec_probe(struct platform_device *pdev) +{ + struct device *hwdev; + struct ec_sensors_data *ec_data; + const struct hwmon_chip_info *chip_info; + struct device *dev = &pdev->dev; + const struct dmi_system_id *dmi_id; + int app_id; + + ec_data = devm_kzalloc(dev, sizeof(struct ec_sensors_data), GFP_KERNEL); + if (!ec_data) + return -ENOMEM; + + if (!request_region(IO_REGION_START, IO_REGION_LENGTH, "LNV-WKS")) { + pr_err(":request fail\n"); + return -EIO; + } + + dev_set_drvdata(dev, ec_data); + + chip_info = &lenovo_ec_chip_info; + + mutex_init(&ec_data->mec_mutex); + + mutex_lock(&ec_data->mec_mutex); + app_id = inb_p(MCHP_EMI0_APPLICATION_ID); + if (app_id) /* check EMI Application ID Value */ + outb_p(app_id, MCHP_EMI0_APPLICATION_ID); /* set EMI Application ID to 0 */ + outw_p(MCHP_SING_IDX, MCHP_EMI0_EC_ADDRESS); + mutex_unlock(&ec_data->mec_mutex); + + if ((inb_p(MCHP_EMI0_EC_DATA_BYTE0) != 'M') && + (inb_p(MCHP_EMI0_EC_DATA_BYTE1) != 'C') && + (inb_p(MCHP_EMI0_EC_DATA_BYTE2) != 'H') && + (inb_p(MCHP_EMI0_EC_DATA_BYTE3) != 'P')) { + release_region(IO_REGION_START, IO_REGION_LENGTH); + return -ENODEV; + } + + dmi_id = dmi_first_match(thinkstation_dmi_table); + + switch ((long)dmi_id->driver_data) { + case 0: + ec_data->fan_labels = px_ec_fan_label; + ec_data->temp_labels = lenovo_px_ec_temp_label; + ec_data->fan_map = px_fan_map; + ec_data->temp_map = px_temp_map; + lenovo_ec_chip_info.info = lenovo_ec_hwmon_info_px; + break; + case 1: + ec_data->fan_labels = p7_ec_fan_label; + ec_data->temp_labels = lenovo_gen_ec_temp_label; + ec_data->fan_map = p7_fan_map; + ec_data->temp_map = gen_temp_map; + lenovo_ec_chip_info.info = lenovo_ec_hwmon_info_p7; + break; + case 2: + ec_data->fan_labels = p5_ec_fan_label; + ec_data->temp_labels = lenovo_gen_ec_temp_label; + ec_data->fan_map = p5_fan_map; + ec_data->temp_map = gen_temp_map; + lenovo_ec_chip_info.info = lenovo_ec_hwmon_info_p5; + break; + case 3: + ec_data->fan_labels = p8_ec_fan_label; + ec_data->temp_labels = lenovo_gen_ec_temp_label; + ec_data->fan_map = p8_fan_map; + ec_data->temp_map = gen_temp_map; + lenovo_ec_chip_info.info = lenovo_ec_hwmon_info_p8; + break; + default: + release_region(IO_REGION_START, IO_REGION_LENGTH); + return -ENODEV; + } + + hwdev = devm_hwmon_device_register_with_info(dev, "lenovo_ec", + ec_data, + chip_info, NULL); + + return PTR_ERR_OR_ZERO(hwdev); +} + +static struct platform_driver lenovo_ec_sensors_platform_driver = { + .driver = { + .name = "lenovo-ec-sensors", + }, + .probe = lenovo_ec_probe, +}; + +static struct platform_device *lenovo_ec_sensors_platform_device; + +static int __init lenovo_ec_init(void) +{ + if (!dmi_check_system(thinkstation_dmi_table)) + return -ENODEV; + + lenovo_ec_sensors_platform_device = + platform_create_bundle(&lenovo_ec_sensors_platform_driver, + lenovo_ec_probe, NULL, 0, NULL, 0); + + if (IS_ERR(lenovo_ec_sensors_platform_device)) { + release_region(IO_REGION_START, IO_REGION_LENGTH); + return PTR_ERR(lenovo_ec_sensors_platform_device); + } + + return 0; +} +module_init(lenovo_ec_init); + +static void __exit lenovo_ec_exit(void) +{ + release_region(IO_REGION_START, IO_REGION_LENGTH); + platform_device_unregister(lenovo_ec_sensors_platform_device); + platform_driver_unregister(&lenovo_ec_sensors_platform_driver); +} +module_exit(lenovo_ec_exit); + +MODULE_AUTHOR("David Ober <dober@lenovo.com>"); +MODULE_DESCRIPTION("HWMON driver for sensors accessible via EC in LENOVO motherboards"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/lineage-pem.c b/drivers/hwmon/lineage-pem.c index df69c380cde7..64a335a64a2e 100644 --- a/drivers/hwmon/lineage-pem.c +++ b/drivers/hwmon/lineage-pem.c @@ -502,7 +502,7 @@ static int pem_probe(struct i2c_client *client) } static const struct i2c_device_id pem_id[] = { - {"lineage_pem", 0}, + {"lineage_pem"}, {} }; MODULE_DEVICE_TABLE(i2c, pem_id); diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c index 0878a044dd8e..035176a98ce9 100644 --- a/drivers/hwmon/lm63.c +++ b/drivers/hwmon/lm63.c @@ -1104,10 +1104,7 @@ static int lm63_probe(struct i2c_client *client) mutex_init(&data->update_lock); /* Set the device type */ - if (client->dev.of_node) - data->kind = (uintptr_t)of_device_get_match_data(&client->dev); - else - data->kind = i2c_match_id(lm63_id, client)->driver_data; + data->kind = (uintptr_t)i2c_get_match_data(client); if (data->kind == lm64) data->temp2_offset = 16000; diff --git a/drivers/hwmon/lm70.c b/drivers/hwmon/lm70.c index c20a749fc7f2..0d5a250cb672 100644 --- a/drivers/hwmon/lm70.c +++ b/drivers/hwmon/lm70.c @@ -6,9 +6,9 @@ * Copyright (C) 2006 Kaiwan N Billimoria <kaiwan@designergraphix.com> * * The LM70 communicates with a host processor via an SPI/Microwire Bus - * interface. The complete datasheet is available at National's website + * interface. The complete datasheet is available at TI's website * here: - * http://www.national.com/pf/LM/LM70.html + * https://www.ti.com/product/LM70 */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt @@ -169,11 +169,7 @@ static int lm70_probe(struct spi_device *spi) struct lm70 *p_lm70; int chip; - if (dev_fwnode(&spi->dev)) - chip = (int)(uintptr_t)device_get_match_data(&spi->dev); - else - chip = spi_get_device_id(spi)->driver_data; - + chip = (kernel_ulong_t)spi_get_device_match_data(spi); /* signaling is SPI_MODE_0 */ if ((spi->mode & SPI_MODE_X_MASK) != SPI_MODE_0) diff --git a/drivers/hwmon/lm73.c b/drivers/hwmon/lm73.c index 637d35c5ae23..581b01572e1b 100644 --- a/drivers/hwmon/lm73.c +++ b/drivers/hwmon/lm73.c @@ -220,7 +220,7 @@ lm73_probe(struct i2c_client *client) } static const struct i2c_device_id lm73_ids[] = { - { "lm73", 0 }, + { "lm73" }, { /* LIST END */ } }; MODULE_DEVICE_TABLE(i2c, lm73_ids); diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c index e00750718536..d95a3c6c245c 100644 --- a/drivers/hwmon/lm75.c +++ b/drivers/hwmon/lm75.c @@ -11,6 +11,7 @@ #include <linux/slab.h> #include <linux/jiffies.h> #include <linux/i2c.h> +#include <linux/i3c/device.h> #include <linux/hwmon.h> #include <linux/err.h> #include <linux/of.h> @@ -38,6 +39,7 @@ enum lm75_type { /* keep sorted in alphabetical order */ max6626, max31725, mcp980x, + p3t1755, pct2075, stds75, stlm75, @@ -104,17 +106,15 @@ static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, 0x4c, #define LM75_REG_MAX 0x03 #define PCT2075_REG_IDLE 0x04 -/* Each client has this additional data */ struct lm75_data { - struct i2c_client *client; struct regmap *regmap; - struct regulator *vs; u16 orig_conf; - u16 current_conf; u8 resolution; /* In bits, 9 to 16 */ unsigned int sample_time; /* In ms */ enum lm75_type kind; const struct lm75_params *params; + u8 reg_buf[1]; + u8 val_buf[3]; }; /*-----------------------------------------------------------------------*/ @@ -222,6 +222,13 @@ static const struct lm75_params device_params[] = { .default_resolution = 9, .default_sample_time = MSEC_PER_SEC / 18, }, + [p3t1755] = { + .clr_mask = 1 << 1 | 1 << 7, /* disable SMBAlert and one-shot */ + .default_resolution = 12, + .default_sample_time = 55, + .num_sample_times = 4, + .sample_times = (unsigned int []){ 28, 55, 110, 220 }, + }, [pct2075] = { .default_resolution = 11, .default_sample_time = MSEC_PER_SEC / 10, @@ -276,6 +283,7 @@ static const struct lm75_params device_params[] = { .default_sample_time = 125, .num_sample_times = 4, .sample_times = (unsigned int []){ 125, 250, 1000, 4000 }, + .alarm = true, }, [tmp175] = { .set_mask = 3 << 5, /* 12-bit mode */ @@ -332,41 +340,11 @@ static inline long lm75_reg_to_mc(s16 temp, u8 resolution) return ((temp >> (16 - resolution)) * 1000) >> (resolution - 8); } -static int lm75_write_config(struct lm75_data *data, u16 set_mask, - u16 clr_mask) -{ - unsigned int value; - - clr_mask |= LM75_SHUTDOWN << (8 * data->params->config_reg_16bits); - value = data->current_conf & ~clr_mask; - value |= set_mask; - - if (data->current_conf != value) { - s32 err; - if (data->params->config_reg_16bits) - err = regmap_write(data->regmap, LM75_REG_CONF, value); - else - err = i2c_smbus_write_byte_data(data->client, - LM75_REG_CONF, - value); - if (err) - return err; - data->current_conf = value; - } - return 0; -} - -static int lm75_read_config(struct lm75_data *data) +static inline int lm75_write_config(struct lm75_data *data, u16 set_mask, + u16 clr_mask) { - int ret; - unsigned int status; - - if (data->params->config_reg_16bits) { - ret = regmap_read(data->regmap, LM75_REG_CONF, &status); - return ret ? ret : status; - } - - return i2c_smbus_read_byte_data(data->client, LM75_REG_CONF); + return regmap_update_bits(data->regmap, LM75_REG_CONF, + clr_mask | LM75_SHUTDOWN, set_mask); } static irqreturn_t lm75_alarm_handler(int irq, void *private) @@ -418,7 +396,8 @@ static int lm75_read(struct device *dev, enum hwmon_sensor_types type, if (attr == hwmon_temp_alarm) { switch (data->kind) { case as6200: - *val = (regval >> 5) & 0x1; + case tmp112: + *val = (regval >> 13) & 0x1; break; default: return -EINVAL; @@ -469,7 +448,6 @@ static int lm75_write_temp(struct device *dev, u32 attr, long temp) static int lm75_update_interval(struct device *dev, long val) { struct lm75_data *data = dev_get_drvdata(dev); - unsigned int reg; u8 index; s32 err; @@ -489,19 +467,14 @@ static int lm75_update_interval(struct device *dev, long val) break; case tmp112: case as6200: - err = regmap_read(data->regmap, LM75_REG_CONF, ®); - if (err < 0) - return err; - reg &= ~0x00c0; - reg |= (3 - index) << 6; - err = regmap_write(data->regmap, LM75_REG_CONF, reg); + err = regmap_update_bits(data->regmap, LM75_REG_CONF, + 0xc000, (3 - index) << 14); if (err < 0) return err; data->sample_time = data->params->sample_times[index]; break; case pct2075: - err = i2c_smbus_write_byte_data(data->client, PCT2075_REG_IDLE, - index + 1); + err = regmap_write(data->regmap, PCT2075_REG_IDLE, index + 1); if (err) return err; data->sample_time = data->params->sample_times[index]; @@ -598,6 +571,115 @@ static bool lm75_is_volatile_reg(struct device *dev, unsigned int reg) return reg == LM75_REG_TEMP || reg == LM75_REG_CONF; } +static int lm75_i2c_reg_read(void *context, unsigned int reg, unsigned int *val) +{ + struct i2c_client *client = context; + struct lm75_data *data = i2c_get_clientdata(client); + int ret; + + if (reg == LM75_REG_CONF) { + if (!data->params->config_reg_16bits) + ret = i2c_smbus_read_byte_data(client, LM75_REG_CONF); + else + ret = i2c_smbus_read_word_data(client, LM75_REG_CONF); + } else { + ret = i2c_smbus_read_word_swapped(client, reg); + } + if (ret < 0) + return ret; + *val = ret; + return 0; +} + +static int lm75_i2c_reg_write(void *context, unsigned int reg, unsigned int val) +{ + struct i2c_client *client = context; + struct lm75_data *data = i2c_get_clientdata(client); + + if (reg == PCT2075_REG_IDLE || + (reg == LM75_REG_CONF && !data->params->config_reg_16bits)) + return i2c_smbus_write_byte_data(client, reg, val); + else if (reg == LM75_REG_CONF) + return i2c_smbus_write_word_data(client, reg, val); + return i2c_smbus_write_word_swapped(client, reg, val); +} + +static const struct regmap_bus lm75_i2c_regmap_bus = { + .reg_read = lm75_i2c_reg_read, + .reg_write = lm75_i2c_reg_write, +}; + +static int lm75_i3c_reg_read(void *context, unsigned int reg, unsigned int *val) +{ + struct i3c_device *i3cdev = context; + struct lm75_data *data = i3cdev_get_drvdata(i3cdev); + struct i3c_priv_xfer xfers[] = { + { + .rnw = false, + .len = 1, + .data.out = data->reg_buf, + }, + { + .rnw = true, + .len = 2, + .data.out = data->val_buf, + }, + }; + int ret; + + data->reg_buf[0] = reg; + + if (reg == LM75_REG_CONF && !data->params->config_reg_16bits) + xfers[1].len--; + + ret = i3c_device_do_priv_xfers(i3cdev, xfers, 2); + if (ret < 0) + return ret; + + if (reg == LM75_REG_CONF && !data->params->config_reg_16bits) + *val = data->val_buf[0]; + else if (reg == LM75_REG_CONF) + *val = data->val_buf[0] | (data->val_buf[1] << 8); + else + *val = data->val_buf[1] | (data->val_buf[0] << 8); + + return 0; +} + +static int lm75_i3c_reg_write(void *context, unsigned int reg, unsigned int val) +{ + struct i3c_device *i3cdev = context; + struct lm75_data *data = i3cdev_get_drvdata(i3cdev); + struct i3c_priv_xfer xfers[] = { + { + .rnw = false, + .len = 3, + .data.out = data->val_buf, + }, + }; + + data->val_buf[0] = reg; + + if (reg == PCT2075_REG_IDLE || + (reg == LM75_REG_CONF && !data->params->config_reg_16bits)) { + xfers[0].len--; + data->val_buf[1] = val & 0xff; + } else if (reg == LM75_REG_CONF) { + data->val_buf[1] = val & 0xff; + data->val_buf[2] = (val >> 8) & 0xff; + } else { + data->val_buf[1] = (val >> 8) & 0xff; + data->val_buf[2] = val & 0xff; + } + + return i3c_device_do_priv_xfers(i3cdev, xfers, 1); +} + +static const struct regmap_bus lm75_i3c_regmap_bus = { + .reg_read = lm75_i3c_reg_read, + .reg_write = lm75_i3c_reg_write, +}; + static const struct regmap_config lm75_regmap_config = { .reg_bits = 8, .val_bits = 16, @@ -610,54 +692,33 @@ static const struct regmap_config lm75_regmap_config = { .use_single_write = true, }; -static void lm75_disable_regulator(void *data) -{ - struct lm75_data *lm75 = data; - - regulator_disable(lm75->vs); -} - static void lm75_remove(void *data) { struct lm75_data *lm75 = data; - struct i2c_client *client = lm75->client; - i2c_smbus_write_byte_data(client, LM75_REG_CONF, lm75->orig_conf); + regmap_write(lm75->regmap, LM75_REG_CONF, lm75->orig_conf); } -static const struct i2c_device_id lm75_ids[]; - -static int lm75_probe(struct i2c_client *client) +static int lm75_generic_probe(struct device *dev, const char *name, + enum lm75_type kind, int irq, struct regmap *regmap) { - struct device *dev = &client->dev; struct device *hwmon_dev; struct lm75_data *data; int status, err; - enum lm75_type kind; - - if (client->dev.of_node) - kind = (uintptr_t)of_device_get_match_data(&client->dev); - else - kind = i2c_match_id(lm75_ids, client)->driver_data; - - if (!i2c_check_functionality(client->adapter, - I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA)) - return -EIO; data = devm_kzalloc(dev, sizeof(struct lm75_data), GFP_KERNEL); if (!data) return -ENOMEM; - data->client = client; - data->kind = kind; + /* needed by custom regmap callbacks */ + dev_set_drvdata(dev, data); - data->vs = devm_regulator_get(dev, "vs"); - if (IS_ERR(data->vs)) - return PTR_ERR(data->vs); + data->kind = kind; + data->regmap = regmap; - data->regmap = devm_regmap_init_i2c(client, &lm75_regmap_config); - if (IS_ERR(data->regmap)) - return PTR_ERR(data->regmap); + err = devm_regulator_get_enable(dev, "vs"); + if (err) + return err; /* Set to LM75 resolution (9 bits, 1/2 degree C) and range. * Then tweak to be more precise when appropriate. @@ -669,25 +730,11 @@ static int lm75_probe(struct i2c_client *client) data->sample_time = data->params->default_sample_time; data->resolution = data->params->default_resolution; - /* Enable the power */ - err = regulator_enable(data->vs); - if (err) { - dev_err(dev, "failed to enable regulator: %d\n", err); - return err; - } - - err = devm_add_action_or_reset(dev, lm75_disable_regulator, data); + /* Cache original configuration */ + err = regmap_read(data->regmap, LM75_REG_CONF, &status); if (err) return err; - - /* Cache original configuration */ - status = lm75_read_config(data); - if (status < 0) { - dev_dbg(dev, "Can't read config? %d\n", status); - return status; - } data->orig_conf = status; - data->current_conf = status; err = lm75_write_config(data, data->params->set_mask, data->params->clr_mask); @@ -698,20 +745,19 @@ static int lm75_probe(struct i2c_client *client) if (err) return err; - hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, - data, &lm75_chip_info, - NULL); + hwmon_dev = devm_hwmon_device_register_with_info(dev, name, data, + &lm75_chip_info, NULL); if (IS_ERR(hwmon_dev)) return PTR_ERR(hwmon_dev); - if (client->irq) { + if (irq) { if (data->params->alarm) { err = devm_request_threaded_irq(dev, - client->irq, + irq, NULL, &lm75_alarm_handler, IRQF_ONESHOT, - client->name, + name, hwmon_dev); if (err) return err; @@ -721,12 +767,29 @@ static int lm75_probe(struct i2c_client *client) } } - dev_info(dev, "%s: sensor '%s'\n", dev_name(hwmon_dev), client->name); + dev_info(dev, "%s: sensor '%s'\n", dev_name(hwmon_dev), name); return 0; } -static const struct i2c_device_id lm75_ids[] = { +static int lm75_i2c_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + struct regmap *regmap; + + if (!i2c_check_functionality(client->adapter, + I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA)) + return -EOPNOTSUPP; + + regmap = devm_regmap_init(dev, &lm75_i2c_regmap_bus, client, &lm75_regmap_config); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + return lm75_generic_probe(dev, client->name, (uintptr_t)i2c_get_match_data(client), + client->irq, regmap); +} + +static const struct i2c_device_id lm75_i2c_ids[] = { { "adt75", adt75, }, { "as6200", as6200, }, { "at30ts74", at30ts74, }, @@ -742,6 +805,7 @@ static const struct i2c_device_id lm75_ids[] = { { "max31725", max31725, }, { "max31726", max31725, }, { "mcp980x", mcp980x, }, + { "p3t1755", p3t1755, }, { "pct2075", pct2075, }, { "stds75", stds75, }, { "stlm75", stlm75, }, @@ -758,7 +822,38 @@ static const struct i2c_device_id lm75_ids[] = { { "tmp1075", tmp1075, }, { /* LIST END */ } }; -MODULE_DEVICE_TABLE(i2c, lm75_ids); +MODULE_DEVICE_TABLE(i2c, lm75_i2c_ids); + +struct lm75_i3c_device { + enum lm75_type type; + const char *name; +}; + +static const struct lm75_i3c_device lm75_i3c_p3t1755 = { + .name = "p3t1755", + .type = p3t1755, +}; + +static const struct i3c_device_id lm75_i3c_ids[] = { + I3C_DEVICE(0x011b, 0x152a, &lm75_i3c_p3t1755), + { /* LIST END */ } +}; +MODULE_DEVICE_TABLE(i3c, lm75_i3c_ids); + +static int lm75_i3c_probe(struct i3c_device *i3cdev) +{ + struct device *dev = i3cdev_to_dev(i3cdev); + const struct lm75_i3c_device *id_data; + struct regmap *regmap; + + regmap = devm_regmap_init(dev, &lm75_i3c_regmap_bus, i3cdev, &lm75_regmap_config); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + id_data = i3c_device_match_id(i3cdev, lm75_i3c_ids)->data; + + return lm75_generic_probe(dev, id_data->name, id_data->type, 0, regmap); +} static const struct of_device_id __maybe_unused lm75_of_match[] = { { @@ -822,6 +917,10 @@ static const struct of_device_id __maybe_unused lm75_of_match[] = { .data = (void *)mcp980x }, { + .compatible = "nxp,p3t1755", + .data = (void *)p3t1755 + }, + { .compatible = "nxp,pct2075", .data = (void *)pct2075 }, @@ -980,32 +1079,16 @@ static int lm75_detect(struct i2c_client *new_client, #ifdef CONFIG_PM static int lm75_suspend(struct device *dev) { - int status; - struct i2c_client *client = to_i2c_client(dev); + struct lm75_data *data = dev_get_drvdata(dev); - status = i2c_smbus_read_byte_data(client, LM75_REG_CONF); - if (status < 0) { - dev_dbg(&client->dev, "Can't read config? %d\n", status); - return status; - } - status = status | LM75_SHUTDOWN; - i2c_smbus_write_byte_data(client, LM75_REG_CONF, status); - return 0; + return regmap_update_bits(data->regmap, LM75_REG_CONF, LM75_SHUTDOWN, LM75_SHUTDOWN); } static int lm75_resume(struct device *dev) { - int status; - struct i2c_client *client = to_i2c_client(dev); + struct lm75_data *data = dev_get_drvdata(dev); - status = i2c_smbus_read_byte_data(client, LM75_REG_CONF); - if (status < 0) { - dev_dbg(&client->dev, "Can't read config? %d\n", status); - return status; - } - status = status & ~LM75_SHUTDOWN; - i2c_smbus_write_byte_data(client, LM75_REG_CONF, status); - return 0; + return regmap_update_bits(data->regmap, LM75_REG_CONF, LM75_SHUTDOWN, 0); } static const struct dev_pm_ops lm75_dev_pm_ops = { @@ -1017,20 +1100,28 @@ static const struct dev_pm_ops lm75_dev_pm_ops = { #define LM75_DEV_PM_OPS NULL #endif /* CONFIG_PM */ -static struct i2c_driver lm75_driver = { +static struct i2c_driver lm75_i2c_driver = { .class = I2C_CLASS_HWMON, .driver = { .name = "lm75", .of_match_table = of_match_ptr(lm75_of_match), .pm = LM75_DEV_PM_OPS, }, - .probe = lm75_probe, - .id_table = lm75_ids, + .probe = lm75_i2c_probe, + .id_table = lm75_i2c_ids, .detect = lm75_detect, .address_list = normal_i2c, }; -module_i2c_driver(lm75_driver); +static struct i3c_driver lm75_i3c_driver = { + .driver = { + .name = "lm75_i3c", + }, + .probe = lm75_i3c_probe, + .id_table = lm75_i3c_ids, +}; + +module_i3c_i2c_driver(lm75_i3c_driver, &lm75_i2c_driver) MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>"); MODULE_DESCRIPTION("LM75 driver"); diff --git a/drivers/hwmon/lm77.c b/drivers/hwmon/lm77.c index 8b9862519178..80f7a6a3f9a2 100644 --- a/drivers/hwmon/lm77.c +++ b/drivers/hwmon/lm77.c @@ -337,7 +337,7 @@ static int lm77_probe(struct i2c_client *client) } static const struct i2c_device_id lm77_id[] = { - { "lm77", 0 }, + { "lm77" }, { } }; MODULE_DEVICE_TABLE(i2c, lm77_id); diff --git a/drivers/hwmon/lm78.c b/drivers/hwmon/lm78.c index b739c354311b..8b53bb312069 100644 --- a/drivers/hwmon/lm78.c +++ b/drivers/hwmon/lm78.c @@ -627,8 +627,6 @@ static int lm78_i2c_detect(struct i2c_client *client, return -ENODEV; } -static const struct i2c_device_id lm78_i2c_id[]; - static int lm78_i2c_probe(struct i2c_client *client) { struct device *dev = &client->dev; @@ -640,7 +638,7 @@ static int lm78_i2c_probe(struct i2c_client *client) return -ENOMEM; data->client = client; - data->type = i2c_match_id(lm78_i2c_id, client)->driver_data; + data->type = (uintptr_t)i2c_get_match_data(client); /* Initialize the LM78 chip */ lm78_init_device(data); diff --git a/drivers/hwmon/lm83.c b/drivers/hwmon/lm83.c index b333c9bde4e6..f800fe2ef18b 100644 --- a/drivers/hwmon/lm83.c +++ b/drivers/hwmon/lm83.c @@ -417,13 +417,6 @@ static int lm83_detect(struct i2c_client *client, return 0; } -static const struct i2c_device_id lm83_id[] = { - { "lm83", lm83 }, - { "lm82", lm82 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, lm83_id); - static int lm83_probe(struct i2c_client *client) { struct device *dev = &client->dev; @@ -438,7 +431,7 @@ static int lm83_probe(struct i2c_client *client) if (IS_ERR(data->regmap)) return PTR_ERR(data->regmap); - data->type = i2c_match_id(lm83_id, client)->driver_data; + data->type = (uintptr_t)i2c_get_match_data(client); hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, data, &lm83_chip_info, NULL); @@ -449,6 +442,13 @@ static int lm83_probe(struct i2c_client *client) * Driver data (common to all clients) */ +static const struct i2c_device_id lm83_id[] = { + { "lm83", lm83 }, + { "lm82", lm82 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, lm83_id); + static struct i2c_driver lm83_driver = { .class = I2C_CLASS_HWMON, .driver = { diff --git a/drivers/hwmon/lm85.c b/drivers/hwmon/lm85.c index 68c210002357..1c244ed75122 100644 --- a/drivers/hwmon/lm85.c +++ b/drivers/hwmon/lm85.c @@ -1544,8 +1544,6 @@ static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info) return 0; } -static const struct i2c_device_id lm85_id[]; - static int lm85_probe(struct i2c_client *client) { struct device *dev = &client->dev; @@ -1558,10 +1556,7 @@ static int lm85_probe(struct i2c_client *client) return -ENOMEM; data->client = client; - if (client->dev.of_node) - data->type = (uintptr_t)of_device_get_match_data(&client->dev); - else - data->type = i2c_match_id(lm85_id, client)->driver_data; + data->type = (uintptr_t)i2c_get_match_data(client); mutex_init(&data->update_lock); /* Fill in the chip specific driver values */ diff --git a/drivers/hwmon/lm87.c b/drivers/hwmon/lm87.c index 2195a735d28e..d2d970e73c61 100644 --- a/drivers/hwmon/lm87.c +++ b/drivers/hwmon/lm87.c @@ -975,8 +975,8 @@ static int lm87_probe(struct i2c_client *client) */ static const struct i2c_device_id lm87_id[] = { - { "lm87", 0 }, - { "adm1024", 0 }, + { "lm87" }, + { "adm1024" }, { } }; MODULE_DEVICE_TABLE(i2c, lm87_id); diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c index e0d7454a301c..75f09553fd67 100644 --- a/drivers/hwmon/lm90.c +++ b/drivers/hwmon/lm90.c @@ -90,6 +90,9 @@ * This driver also supports NE1618 from Philips. It is similar to NE1617 * but supports 11 bit external temperature values. * + * This driver also supports NCT7716, NCT7717 and NCT7718 from Nuvoton. + * The NCT7716 is similar to NCT7717 but has one more address support. + * * Since the LM90 was the first chipset supported by this driver, most * comments will refer to this chipset, but are actually general and * concern all supported chipsets, unless mentioned otherwise. @@ -119,13 +122,15 @@ * Address is fully defined internally and cannot be changed except for * MAX6659, MAX6680 and MAX6681. * LM86, LM89, LM90, LM99, ADM1032, ADM1032-1, ADT7461, ADT7461A, MAX6649, - * MAX6657, MAX6658, NCT1008 and W83L771 have address 0x4c. + * MAX6657, MAX6658, NCT1008, NCT7718 and W83L771 have address 0x4c. * ADM1032-2, ADT7461-2, ADT7461A-2, LM89-1, LM99-1, MAX6646, and NCT1008D * have address 0x4d. * MAX6647 has address 0x4e. * MAX6659 can have address 0x4c, 0x4d or 0x4e. * MAX6654, MAX6680, and MAX6681 can have address 0x18, 0x19, 0x1a, 0x29, * 0x2a, 0x2b, 0x4c, 0x4d or 0x4e. + * NCT7716 can have address 0x48 or 0x49. + * NCT7717 has address 0x48. * SA56004 can have address 0x48 through 0x4F. */ @@ -136,7 +141,7 @@ static const unsigned short normal_i2c[] = { enum chips { adm1023, adm1032, adt7461, adt7461a, adt7481, g781, lm84, lm90, lm99, max1617, max6642, max6646, max6648, max6654, max6657, max6659, max6680, max6696, - nct210, nct72, ne1618, sa56004, tmp451, tmp461, w83l771, + nct210, nct72, nct7716, nct7717, nct7718, ne1618, sa56004, tmp451, tmp461, w83l771, }; /* @@ -191,6 +196,9 @@ enum chips { adm1023, adm1032, adt7461, adt7461a, adt7481, #define ADT7481_REG_MAN_ID 0x3e #define ADT7481_REG_CHIP_ID 0x3d +/* NCT7716/7717/7718 registers */ +#define NCT7716_REG_CHIP_ID 0xFD + /* Device features */ #define LM90_HAVE_EXTENDED_TEMP BIT(0) /* extended temperature support */ #define LM90_HAVE_OFFSET BIT(1) /* temperature offset register */ @@ -275,6 +283,9 @@ static const struct i2c_device_id lm90_id[] = { { "nct214", nct72 }, { "nct218", nct72 }, { "nct72", nct72 }, + { "nct7716", nct7716 }, + { "nct7717", nct7717 }, + { "nct7718", nct7718 }, { "ne1618", ne1618 }, { "w83l771", w83l771 }, { "sa56004", sa56004 }, @@ -383,6 +394,18 @@ static const struct of_device_id __maybe_unused lm90_of_match[] = { .data = (void *)nct72 }, { + .compatible = "nuvoton,nct7716", + .data = (void *)nct7716 + }, + { + .compatible = "nuvoton,nct7717", + .data = (void *)nct7717 + }, + { + .compatible = "nuvoton,nct7718", + .data = (void *)nct7718 + }, + { .compatible = "winbond,w83l771", .data = (void *)w83l771 }, @@ -601,6 +624,26 @@ static const struct lm90_params lm90_params[] = { .resolution = 11, .max_convrate = 7, }, + [nct7716] = { + .flags = LM90_HAVE_ALARMS | LM90_HAVE_CONVRATE, + .alert_alarms = 0x40, + .resolution = 8, + .max_convrate = 8, + }, + [nct7717] = { + .flags = LM90_HAVE_ALARMS | LM90_HAVE_CONVRATE, + .alert_alarms = 0x40, + .resolution = 8, + .max_convrate = 8, + }, + [nct7718] = { + .flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT | LM90_HAVE_CRIT + | LM90_HAVE_ALARMS | LM90_HAVE_LOW | LM90_HAVE_CONVRATE + | LM90_HAVE_REMOTE_EXT, + .alert_alarms = 0x7c, + .resolution = 11, + .max_convrate = 8, + }, [ne1618] = { .flags = LM90_PAUSE_FOR_CONFIG | LM90_HAVE_BROKEN_ALERT | LM90_HAVE_LOW | LM90_HAVE_CONVRATE | LM90_HAVE_REMOTE_EXT, @@ -1270,42 +1313,6 @@ static int lm90_update_device(struct device *dev) return 0; } -/* pec used for devices with PEC support */ -static ssize_t pec_show(struct device *dev, struct device_attribute *dummy, - char *buf) -{ - struct i2c_client *client = to_i2c_client(dev); - - return sprintf(buf, "%d\n", !!(client->flags & I2C_CLIENT_PEC)); -} - -static ssize_t pec_store(struct device *dev, struct device_attribute *dummy, - const char *buf, size_t count) -{ - struct i2c_client *client = to_i2c_client(dev); - long val; - int err; - - err = kstrtol(buf, 10, &val); - if (err < 0) - return err; - - switch (val) { - case 0: - client->flags &= ~I2C_CLIENT_PEC; - break; - case 1: - client->flags |= I2C_CLIENT_PEC; - break; - default: - return -EINVAL; - } - - return count; -} - -static DEVICE_ATTR_RW(pec); - static int lm90_temp_get_resolution(struct lm90_data *data, int index) { switch (index) { @@ -2336,6 +2343,38 @@ static const char *lm90_detect_nuvoton(struct i2c_client *client, int chip_id, return name; } +static const char *lm90_detect_nuvoton_50(struct i2c_client *client, int chip_id, + int config1, int convrate) +{ + int chip_id2 = i2c_smbus_read_byte_data(client, NCT7716_REG_CHIP_ID); + int config2 = i2c_smbus_read_byte_data(client, LM90_REG_CONFIG2); + int address = client->addr; + const char *name = NULL; + + if (chip_id2 < 0 || config2 < 0) + return NULL; + + if (chip_id2 != 0x50 || convrate > 0x08) + return NULL; + + switch (chip_id) { + case 0x90: + if (address == 0x48 && !(config1 & 0x3e) && !(config2 & 0xfe)) + name = "nct7717"; + break; + case 0x91: + if ((address == 0x48 || address == 0x49) && !(config1 & 0x3e) && + !(config2 & 0xfe)) + name = "nct7716"; + else if (address == 0x4c && !(config1 & 0x38) && !(config2 & 0xf8)) + name = "nct7718"; + break; + default: + break; + } + return name; +} + static const char *lm90_detect_nxp(struct i2c_client *client, bool common_address, int chip_id, int config1, int convrate) { @@ -2520,6 +2559,9 @@ static int lm90_detect(struct i2c_client *client, struct i2c_board_info *info) name = lm90_detect_maxim(client, common_address, chip_id, config1, convrate); break; + case 0x50: + name = lm90_detect_nuvoton_50(client, chip_id, config1, convrate); + break; case 0x54: /* ON MC1066, Microchip TC1068, TCM1617 (originally TelCom) */ if (common_address && !(config1 & 0x3f) && !(convrate & 0xf8)) name = "mc1066"; @@ -2659,11 +2701,6 @@ static irqreturn_t lm90_irq_thread(int irq, void *dev_id) return IRQ_NONE; } -static void lm90_remove_pec(void *dev) -{ - device_remove_file(dev, &dev_attr_pec); -} - static int lm90_probe_channel_from_dt(struct i2c_client *client, struct device_node *child, struct lm90_data *data) @@ -2715,19 +2752,16 @@ static int lm90_parse_dt_channel_info(struct i2c_client *client, struct lm90_data *data) { int err; - struct device_node *child; struct device *dev = &client->dev; const struct device_node *np = dev->of_node; - for_each_child_of_node(np, child) { + for_each_child_of_node_scoped(np, child) { if (strcmp(child->name, "channel")) continue; err = lm90_probe_channel_from_dt(client, child, data); - if (err) { - of_node_put(child); + if (err) return err; - } } return 0; @@ -2764,10 +2798,7 @@ static int lm90_probe(struct i2c_client *client) INIT_WORK(&data->report_work, lm90_report_alarms); /* Set the device type */ - if (client->dev.of_node) - data->kind = (uintptr_t)of_device_get_match_data(&client->dev); - else - data->kind = i2c_match_id(lm90_id, client)->driver_data; + data->kind = (uintptr_t)i2c_get_match_data(client); /* * Different devices have different alarm bits triggering the @@ -2802,6 +2833,8 @@ static int lm90_probe(struct i2c_client *client) data->chip_config[0] |= HWMON_C_UPDATE_INTERVAL; if (data->flags & LM90_HAVE_FAULTQUEUE) data->chip_config[0] |= HWMON_C_TEMP_SAMPLES; + if (data->flags & (LM90_HAVE_PEC | LM90_HAVE_PARTIAL_PEC)) + data->chip_config[0] |= HWMON_C_PEC; data->info[1] = &data->temp_info; info = &data->temp_info; @@ -2878,19 +2911,6 @@ static int lm90_probe(struct i2c_client *client) return err; } - /* - * The 'pec' attribute is attached to the i2c device and thus created - * separately. - */ - if (data->flags & (LM90_HAVE_PEC | LM90_HAVE_PARTIAL_PEC)) { - err = device_create_file(dev, &dev_attr_pec); - if (err) - return err; - err = devm_add_action_or_reset(dev, lm90_remove_pec, dev); - if (err) - return err; - } - hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, data, &data->chip, NULL); diff --git a/drivers/hwmon/lm92.c b/drivers/hwmon/lm92.c index 46579a3e1715..0be439b38ee1 100644 --- a/drivers/hwmon/lm92.c +++ b/drivers/hwmon/lm92.c @@ -27,15 +27,14 @@ * with the LM92. */ -#include <linux/module.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/i2c.h> -#include <linux/hwmon.h> -#include <linux/hwmon-sysfs.h> #include <linux/err.h> +#include <linux/hwmon.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/module.h> #include <linux/mutex.h> -#include <linux/jiffies.h> +#include <linux/regmap.h> +#include <linux/slab.h> /* * The LM92 and MAX6635 have 2 two-state pins for address selection, @@ -43,8 +42,6 @@ */ static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, I2C_CLIENT_END }; -enum chips { lm92, max6635 }; - /* The LM92 registers */ #define LM92_REG_CONFIG 0x01 /* 8-bit, RW */ #define LM92_REG_TEMP 0x00 /* 16-bit, RO */ @@ -66,10 +63,10 @@ static inline int TEMP_FROM_REG(s16 reg) return reg / 8 * 625 / 10; } -static inline s16 TEMP_TO_REG(long val) +static inline s16 TEMP_TO_REG(long val, int resolution) { val = clamp_val(val, -60000, 160000); - return val * 10 / 625 * 8; + return DIV_ROUND_CLOSEST(val << (resolution - 9), 1000) << (16 - resolution); } /* Alarm flags are stored in the 3 LSB of the temperature register */ @@ -78,239 +75,336 @@ static inline u8 ALARMS_FROM_REG(s16 reg) return reg & 0x0007; } -enum temp_index { - t_input, - t_crit, - t_min, - t_max, - t_hyst, - t_num_regs -}; - -static const u8 regs[t_num_regs] = { - [t_input] = LM92_REG_TEMP, - [t_crit] = LM92_REG_TEMP_CRIT, - [t_min] = LM92_REG_TEMP_LOW, - [t_max] = LM92_REG_TEMP_HIGH, - [t_hyst] = LM92_REG_TEMP_HYST, -}; - /* Client data (each client gets its own) */ struct lm92_data { - struct i2c_client *client; + struct regmap *regmap; struct mutex update_lock; - bool valid; /* false until following fields are valid */ - unsigned long last_updated; /* in jiffies */ - - /* registers values */ - s16 temp[t_num_regs]; /* index with enum temp_index */ + int resolution; }; -/* - * Sysfs attributes and callback functions - */ - -static struct lm92_data *lm92_update_device(struct device *dev) +static int lm92_temp_read(struct lm92_data *data, u32 attr, int channel, long *val) { - struct lm92_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - int i; - - mutex_lock(&data->update_lock); - - if (time_after(jiffies, data->last_updated + HZ) || - !data->valid) { - dev_dbg(&client->dev, "Updating lm92 data\n"); - for (i = 0; i < t_num_regs; i++) { - data->temp[i] = - i2c_smbus_read_word_swapped(client, regs[i]); - } - data->last_updated = jiffies; - data->valid = true; + int reg = -1, hyst_reg = -1, alarm_bit = 0; + struct regmap *regmap = data->regmap; + u32 temp; + int ret; + + switch (attr) { + case hwmon_temp_input: + reg = LM92_REG_TEMP; + break; + case hwmon_temp_min: + reg = LM92_REG_TEMP_LOW; + break; + case hwmon_temp_max: + reg = LM92_REG_TEMP_HIGH; + break; + case hwmon_temp_crit: + reg = LM92_REG_TEMP_CRIT; + break; + case hwmon_temp_min_hyst: + hyst_reg = LM92_REG_TEMP_LOW; + break; + case hwmon_temp_max_hyst: + hyst_reg = LM92_REG_TEMP_HIGH; + break; + case hwmon_temp_crit_hyst: + hyst_reg = LM92_REG_TEMP_CRIT; + break; + case hwmon_temp_min_alarm: + alarm_bit = 0; + break; + case hwmon_temp_max_alarm: + alarm_bit = 1; + break; + case hwmon_temp_crit_alarm: + alarm_bit = 2; + break; + default: + return -EOPNOTSUPP; } - - mutex_unlock(&data->update_lock); - - return data; + if (reg >= 0) { + ret = regmap_read(regmap, reg, &temp); + if (ret < 0) + return ret; + *val = TEMP_FROM_REG(temp); + } else if (hyst_reg >= 0) { + u32 regs[2] = { hyst_reg, LM92_REG_TEMP_HYST }; + u16 regvals[2]; + + ret = regmap_multi_reg_read(regmap, regs, regvals, 2); + if (ret) + return ret; + if (attr == hwmon_temp_min_hyst) + *val = TEMP_FROM_REG(regvals[0]) + TEMP_FROM_REG(regvals[1]); + else + *val = TEMP_FROM_REG(regvals[0]) - TEMP_FROM_REG(regvals[1]); + } else { + ret = regmap_read(regmap, LM92_REG_TEMP, &temp); + if (ret) + return ret; + *val = !!(temp & BIT(alarm_bit)); + } + return 0; } -static ssize_t temp_show(struct device *dev, struct device_attribute *devattr, - char *buf) +static int lm92_chip_read(struct lm92_data *data, u32 attr, long *val) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct lm92_data *data = lm92_update_device(dev); - - return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index])); + u32 temp; + int ret; + + switch (attr) { + case hwmon_chip_alarms: + ret = regmap_read(data->regmap, LM92_REG_TEMP, &temp); + if (ret) + return ret; + *val = ALARMS_FROM_REG(temp); + break; + default: + return -EOPNOTSUPP; + } + return 0; } -static ssize_t temp_store(struct device *dev, - struct device_attribute *devattr, const char *buf, - size_t count) +static int lm92_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, + int channel, long *val) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct lm92_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - int nr = attr->index; - long val; - int err; - - err = kstrtol(buf, 10, &val); - if (err) - return err; - - mutex_lock(&data->update_lock); - data->temp[nr] = TEMP_TO_REG(val); - i2c_smbus_write_word_swapped(client, regs[nr], data->temp[nr]); - mutex_unlock(&data->update_lock); - return count; -} -static ssize_t temp_hyst_show(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct lm92_data *data = lm92_update_device(dev); - - return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]) - - TEMP_FROM_REG(data->temp[t_hyst])); + switch (type) { + case hwmon_chip: + return lm92_chip_read(data, attr, val); + case hwmon_temp: + return lm92_temp_read(data, attr, channel, val); + default: + return -EOPNOTSUPP; + } } -static ssize_t temp1_min_hyst_show(struct device *dev, - struct device_attribute *attr, char *buf) +static int lm92_temp_write(struct lm92_data *data, u32 attr, long val) { - struct lm92_data *data = lm92_update_device(dev); - - return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[t_min]) - + TEMP_FROM_REG(data->temp[t_hyst])); + struct regmap *regmap = data->regmap; + int reg, err; + u32 temp; + + switch (attr) { + case hwmon_temp_min: + reg = LM92_REG_TEMP_LOW; + break; + case hwmon_temp_max: + reg = LM92_REG_TEMP_HIGH; + break; + case hwmon_temp_crit: + reg = LM92_REG_TEMP_CRIT; + break; + case hwmon_temp_crit_hyst: + val = clamp_val(val, -120000, 220000); + mutex_lock(&data->update_lock); + err = regmap_read(regmap, LM92_REG_TEMP_CRIT, &temp); + if (err) + goto unlock; + val = TEMP_TO_REG(TEMP_FROM_REG(temp) - val, data->resolution); + err = regmap_write(regmap, LM92_REG_TEMP_HYST, val); +unlock: + mutex_unlock(&data->update_lock); + return err; + default: + return -EOPNOTSUPP; + } + return regmap_write(regmap, reg, TEMP_TO_REG(val, data->resolution)); } -static ssize_t temp_hyst_store(struct device *dev, - struct device_attribute *devattr, - const char *buf, size_t count) +static int lm92_write(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long val) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct lm92_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - long val; - int err; - err = kstrtol(buf, 10, &val); - if (err) - return err; - - val = clamp_val(val, -120000, 220000); - mutex_lock(&data->update_lock); - data->temp[t_hyst] = - TEMP_TO_REG(TEMP_FROM_REG(data->temp[attr->index]) - val); - i2c_smbus_write_word_swapped(client, LM92_REG_TEMP_HYST, - data->temp[t_hyst]); - mutex_unlock(&data->update_lock); - return count; + switch (type) { + case hwmon_temp: + return lm92_temp_write(data, attr, val); + default: + return -EOPNOTSUPP; + } } -static ssize_t alarms_show(struct device *dev, struct device_attribute *attr, - char *buf) +static umode_t lm92_is_visible(const void *_data, enum hwmon_sensor_types type, + u32 attr, int channel) { - struct lm92_data *data = lm92_update_device(dev); - - return sprintf(buf, "%d\n", ALARMS_FROM_REG(data->temp[t_input])); + switch (type) { + case hwmon_chip: + switch (attr) { + case hwmon_chip_alarms: + return 0444; + default: + break; + } + break; + case hwmon_temp: + switch (attr) { + case hwmon_temp_min: + case hwmon_temp_max: + case hwmon_temp_crit: + case hwmon_temp_crit_hyst: + return 0644; + case hwmon_temp_input: + case hwmon_temp_min_hyst: + case hwmon_temp_max_hyst: + case hwmon_temp_min_alarm: + case hwmon_temp_max_alarm: + case hwmon_temp_crit_alarm: + return 0444; + default: + break; + } + break; + default: + break; + } + return 0; } -static ssize_t alarm_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - int bitnr = to_sensor_dev_attr(attr)->index; - struct lm92_data *data = lm92_update_device(dev); - return sprintf(buf, "%d\n", (data->temp[t_input] >> bitnr) & 1); -} +static const struct hwmon_channel_info * const lm92_info[] = { + HWMON_CHANNEL_INFO(chip, HWMON_C_ALARMS), + HWMON_CHANNEL_INFO(temp, + HWMON_T_INPUT | + HWMON_T_MIN | HWMON_T_MIN_HYST | + HWMON_T_MAX | HWMON_T_MAX_HYST | + HWMON_T_CRIT | HWMON_T_CRIT_HYST | + HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM | + HWMON_T_CRIT_ALARM), + NULL +}; -static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, t_input); -static SENSOR_DEVICE_ATTR_RW(temp1_crit, temp, t_crit); -static SENSOR_DEVICE_ATTR_RW(temp1_crit_hyst, temp_hyst, t_crit); -static SENSOR_DEVICE_ATTR_RW(temp1_min, temp, t_min); -static DEVICE_ATTR_RO(temp1_min_hyst); -static SENSOR_DEVICE_ATTR_RW(temp1_max, temp, t_max); -static SENSOR_DEVICE_ATTR_RO(temp1_max_hyst, temp_hyst, t_max); -static DEVICE_ATTR_RO(alarms); -static SENSOR_DEVICE_ATTR_RO(temp1_crit_alarm, alarm, 2); -static SENSOR_DEVICE_ATTR_RO(temp1_min_alarm, alarm, 0); -static SENSOR_DEVICE_ATTR_RO(temp1_max_alarm, alarm, 1); +static const struct hwmon_ops lm92_hwmon_ops = { + .is_visible = lm92_is_visible, + .read = lm92_read, + .write = lm92_write, +}; + +static const struct hwmon_chip_info lm92_chip_info = { + .ops = &lm92_hwmon_ops, + .info = lm92_info, +}; /* * Detection and registration */ -static void lm92_init_client(struct i2c_client *client) +static int lm92_init_client(struct regmap *regmap) { - u8 config; - - /* Start the conversions if needed */ - config = i2c_smbus_read_byte_data(client, LM92_REG_CONFIG); - if (config & 0x01) - i2c_smbus_write_byte_data(client, LM92_REG_CONFIG, - config & 0xFE); + return regmap_clear_bits(regmap, LM92_REG_CONFIG, 0x01); } -static struct attribute *lm92_attrs[] = { - &sensor_dev_attr_temp1_input.dev_attr.attr, - &sensor_dev_attr_temp1_crit.dev_attr.attr, - &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr, - &sensor_dev_attr_temp1_min.dev_attr.attr, - &dev_attr_temp1_min_hyst.attr, - &sensor_dev_attr_temp1_max.dev_attr.attr, - &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, - &dev_attr_alarms.attr, - &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp1_min_alarm.dev_attr.attr, - &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, - NULL -}; -ATTRIBUTE_GROUPS(lm92); - /* Return 0 if detection is successful, -ENODEV otherwise */ static int lm92_detect(struct i2c_client *new_client, struct i2c_board_info *info) { struct i2c_adapter *adapter = new_client->adapter; - u8 config; - u16 man_id; + u8 config_addr = LM92_REG_CONFIG; + u8 man_id_addr = LM92_REG_MAN_ID; + int i, regval; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA)) return -ENODEV; - config = i2c_smbus_read_byte_data(new_client, LM92_REG_CONFIG); - man_id = i2c_smbus_read_word_data(new_client, LM92_REG_MAN_ID); - - if ((config & 0xe0) == 0x00 && man_id == 0x0180) - pr_info("lm92: Found National Semiconductor LM92 chip\n"); - else - return -ENODEV; + /* + * Register values repeat with multiples of 8. + * Read twice to improve detection accuracy. + */ + for (i = 0; i < 2; i++) { + regval = i2c_smbus_read_word_data(new_client, man_id_addr); + if (regval != 0x0180) + return -ENODEV; + regval = i2c_smbus_read_byte_data(new_client, config_addr); + if (regval < 0 || (regval & 0xe0)) + return -ENODEV; + config_addr += 8; + man_id_addr += 8; + } strscpy(info->type, "lm92", I2C_NAME_SIZE); return 0; } -static int lm92_probe(struct i2c_client *new_client) +/* regmap */ + +static int lm92_reg_read(void *context, unsigned int reg, unsigned int *val) +{ + int ret; + + if (reg == LM92_REG_CONFIG) + ret = i2c_smbus_read_byte_data(context, reg); + else + ret = i2c_smbus_read_word_swapped(context, reg); + if (ret < 0) + return ret; + + *val = ret; + return 0; +} + +static int lm92_reg_write(void *context, unsigned int reg, unsigned int val) +{ + if (reg == LM92_REG_CONFIG) + return i2c_smbus_write_byte_data(context, LM92_REG_CONFIG, val); + + return i2c_smbus_write_word_swapped(context, reg, val); +} + +static bool lm92_regmap_is_volatile(struct device *dev, unsigned int reg) +{ + return reg == LM92_REG_TEMP; +} + +static bool lm92_regmap_is_writeable(struct device *dev, unsigned int reg) { + return reg >= LM92_REG_CONFIG; +} + +static const struct regmap_config lm92_regmap_config = { + .reg_bits = 8, + .val_bits = 16, + .max_register = LM92_REG_TEMP_HIGH, + .cache_type = REGCACHE_MAPLE, + .volatile_reg = lm92_regmap_is_volatile, + .writeable_reg = lm92_regmap_is_writeable, +}; + +static const struct regmap_bus lm92_regmap_bus = { + .reg_write = lm92_reg_write, + .reg_read = lm92_reg_read, +}; + +static int lm92_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; struct device *hwmon_dev; struct lm92_data *data; + struct regmap *regmap; + int err; + + regmap = devm_regmap_init(dev, &lm92_regmap_bus, client, + &lm92_regmap_config); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); - data = devm_kzalloc(&new_client->dev, sizeof(struct lm92_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct lm92_data), GFP_KERNEL); if (!data) return -ENOMEM; - data->client = new_client; + data->regmap = regmap; + data->resolution = (unsigned long)i2c_get_match_data(client); mutex_init(&data->update_lock); /* Initialize the chipset */ - lm92_init_client(new_client); + err = lm92_init_client(regmap); + if (err) + return err; - hwmon_dev = devm_hwmon_device_register_with_groups(&new_client->dev, - new_client->name, - data, lm92_groups); + hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, data, + &lm92_chip_info, NULL); return PTR_ERR_OR_ZERO(hwmon_dev); } @@ -318,9 +412,10 @@ static int lm92_probe(struct i2c_client *new_client) * Module and driver stuff */ +/* .driver_data is limit register resolution */ static const struct i2c_device_id lm92_id[] = { - { "lm92", lm92 }, - { "max6635", max6635 }, + { "lm92", 13 }, + { "max6635", 9 }, { } }; MODULE_DEVICE_TABLE(i2c, lm92_id); diff --git a/drivers/hwmon/lm93.c b/drivers/hwmon/lm93.c index 75bca805720e..be4853fad80f 100644 --- a/drivers/hwmon/lm93.c +++ b/drivers/hwmon/lm93.c @@ -2624,8 +2624,8 @@ static int lm93_probe(struct i2c_client *client) } static const struct i2c_device_id lm93_id[] = { - { "lm93", 0 }, - { "lm94", 0 }, + { "lm93" }, + { "lm94" }, { } }; MODULE_DEVICE_TABLE(i2c, lm93_id); diff --git a/drivers/hwmon/lm95234.c b/drivers/hwmon/lm95234.c index 67b9d7636ee4..7da6c8f07332 100644 --- a/drivers/hwmon/lm95234.c +++ b/drivers/hwmon/lm95234.c @@ -8,16 +8,15 @@ * Copyright (C) 2008, 2010 Davide Rizzo <elpa.rizzo@gmail.com> */ -#include <linux/module.h> +#include <linux/err.h> +#include <linux/hwmon.h> +#include <linux/i2c.h> #include <linux/init.h> +#include <linux/module.h> #include <linux/slab.h> -#include <linux/jiffies.h> -#include <linux/i2c.h> -#include <linux/hwmon.h> -#include <linux/hwmon-sysfs.h> -#include <linux/err.h> #include <linux/mutex.h> -#include <linux/sysfs.h> +#include <linux/regmap.h> +#include <linux/util_macros.h> #define DRVNAME "lm95234" @@ -32,6 +31,8 @@ static const unsigned short normal_i2c[] = { #define LM95234_REG_STATUS 0x02 #define LM95234_REG_CONFIG 0x03 #define LM95234_REG_CONVRATE 0x04 +#define LM95234_REG_ENABLE 0x05 +#define LM95234_REG_FILTER 0x06 #define LM95234_REG_STS_FAULT 0x07 #define LM95234_REG_STS_TCRIT1 0x08 #define LM95234_REG_STS_TCRIT2 0x09 @@ -52,540 +53,372 @@ static const unsigned short normal_i2c[] = { /* Client data (each client gets its own) */ struct lm95234_data { - struct i2c_client *client; - const struct attribute_group *groups[3]; + struct regmap *regmap; struct mutex update_lock; - unsigned long last_updated, interval; /* in jiffies */ - bool valid; /* false until following fields are valid */ - /* registers values */ - int temp[5]; /* temperature (signed) */ - u32 status; /* fault/alarm status */ - u8 tcrit1[5]; /* critical temperature limit */ - u8 tcrit2[2]; /* high temperature limit */ - s8 toffset[4]; /* remote temperature offset */ - u8 thyst; /* common hysteresis */ - - u8 sensor_type; /* temperature sensor type */ + enum chips type; }; -static int lm95234_read_temp(struct i2c_client *client, int index, int *t) +static int lm95234_read_temp(struct regmap *regmap, int index, long *t) { - int val; - u16 temp = 0; + unsigned int regs[2]; + int temp = 0, ret; + u8 regvals[2]; if (index) { - val = i2c_smbus_read_byte_data(client, - LM95234_REG_UTEMPH(index - 1)); - if (val < 0) - return val; - temp = val << 8; - val = i2c_smbus_read_byte_data(client, - LM95234_REG_UTEMPL(index - 1)); - if (val < 0) - return val; - temp |= val; - *t = temp; + regs[0] = LM95234_REG_UTEMPH(index - 1); + regs[1] = LM95234_REG_UTEMPL(index - 1); + ret = regmap_multi_reg_read(regmap, regs, regvals, 2); + if (ret) + return ret; + temp = (regvals[0] << 8) | regvals[1]; } /* * Read signed temperature if unsigned temperature is 0, * or if this is the local sensor. */ if (!temp) { - val = i2c_smbus_read_byte_data(client, - LM95234_REG_TEMPH(index)); - if (val < 0) - return val; - temp = val << 8; - val = i2c_smbus_read_byte_data(client, - LM95234_REG_TEMPL(index)); - if (val < 0) - return val; - temp |= val; - *t = (s16)temp; + regs[0] = LM95234_REG_TEMPH(index); + regs[1] = LM95234_REG_TEMPL(index); + ret = regmap_multi_reg_read(regmap, regs, regvals, 2); + if (ret) + return ret; + temp = (regvals[0] << 8) | regvals[1]; + temp = sign_extend32(temp, 15); } + *t = DIV_ROUND_CLOSEST(temp * 125, 32); return 0; } -static u16 update_intervals[] = { 143, 364, 1000, 2500 }; - -/* Fill value cache. Must be called with update lock held. */ - -static int lm95234_fill_cache(struct lm95234_data *data, - struct i2c_client *client) +static int lm95234_hyst_get(struct regmap *regmap, int reg, long *val) { - int i, ret; - - ret = i2c_smbus_read_byte_data(client, LM95234_REG_CONVRATE); - if (ret < 0) - return ret; - - data->interval = msecs_to_jiffies(update_intervals[ret & 0x03]); - - for (i = 0; i < ARRAY_SIZE(data->tcrit1); i++) { - ret = i2c_smbus_read_byte_data(client, LM95234_REG_TCRIT1(i)); - if (ret < 0) - return ret; - data->tcrit1[i] = ret; - } - for (i = 0; i < ARRAY_SIZE(data->tcrit2); i++) { - ret = i2c_smbus_read_byte_data(client, LM95234_REG_TCRIT2(i)); - if (ret < 0) - return ret; - data->tcrit2[i] = ret; - } - for (i = 0; i < ARRAY_SIZE(data->toffset); i++) { - ret = i2c_smbus_read_byte_data(client, LM95234_REG_OFFSET(i)); - if (ret < 0) - return ret; - data->toffset[i] = ret; - } - - ret = i2c_smbus_read_byte_data(client, LM95234_REG_TCRIT_HYST); - if (ret < 0) - return ret; - data->thyst = ret; + unsigned int regs[2] = {reg, LM95234_REG_TCRIT_HYST}; + u8 regvals[2]; + int ret; - ret = i2c_smbus_read_byte_data(client, LM95234_REG_REM_MODEL); - if (ret < 0) + ret = regmap_multi_reg_read(regmap, regs, regvals, 2); + if (ret) return ret; - data->sensor_type = ret; - + *val = (regvals[0] - regvals[1]) * 1000; return 0; } -static int lm95234_update_device(struct lm95234_data *data) +static ssize_t lm95234_hyst_set(struct lm95234_data *data, long val) { - struct i2c_client *client = data->client; + u32 tcrit; int ret; mutex_lock(&data->update_lock); - if (time_after(jiffies, data->last_updated + data->interval) || - !data->valid) { - int i; - - if (!data->valid) { - ret = lm95234_fill_cache(data, client); - if (ret < 0) - goto abort; - } - - data->valid = false; - for (i = 0; i < ARRAY_SIZE(data->temp); i++) { - ret = lm95234_read_temp(client, i, &data->temp[i]); - if (ret < 0) - goto abort; - } - - ret = i2c_smbus_read_byte_data(client, LM95234_REG_STS_FAULT); - if (ret < 0) - goto abort; - data->status = ret; - - ret = i2c_smbus_read_byte_data(client, LM95234_REG_STS_TCRIT1); - if (ret < 0) - goto abort; - data->status |= ret << 8; + ret = regmap_read(data->regmap, LM95234_REG_TCRIT1(0), &tcrit); + if (ret) + goto unlock; - ret = i2c_smbus_read_byte_data(client, LM95234_REG_STS_TCRIT2); - if (ret < 0) - goto abort; - data->status |= ret << 16; + val = DIV_ROUND_CLOSEST(clamp_val(val, -255000, 255000), 1000); + val = clamp_val((int)tcrit - val, 0, 31); - data->last_updated = jiffies; - data->valid = true; - } - ret = 0; -abort: + ret = regmap_write(data->regmap, LM95234_REG_TCRIT_HYST, val); +unlock: mutex_unlock(&data->update_lock); - return ret; } -static ssize_t temp_show(struct device *dev, struct device_attribute *attr, - char *buf) +static int lm95234_crit_reg(int channel) { - struct lm95234_data *data = dev_get_drvdata(dev); - int index = to_sensor_dev_attr(attr)->index; - int ret = lm95234_update_device(data); - - if (ret) - return ret; - - return sprintf(buf, "%d\n", - DIV_ROUND_CLOSEST(data->temp[index] * 125, 32)); -} - -static ssize_t alarm_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - struct lm95234_data *data = dev_get_drvdata(dev); - u32 mask = to_sensor_dev_attr(attr)->index; - int ret = lm95234_update_device(data); - - if (ret) - return ret; - - return sprintf(buf, "%u", !!(data->status & mask)); + if (channel == 1 || channel == 2) + return LM95234_REG_TCRIT2(channel - 1); + return LM95234_REG_TCRIT1(channel); } -static ssize_t type_show(struct device *dev, struct device_attribute *attr, - char *buf) +static int lm95234_temp_write(struct device *dev, u32 attr, int channel, long val) { struct lm95234_data *data = dev_get_drvdata(dev); - u8 mask = to_sensor_dev_attr(attr)->index; - int ret = lm95234_update_device(data); - - if (ret) - return ret; - - return sprintf(buf, data->sensor_type & mask ? "1\n" : "2\n"); -} - -static ssize_t type_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - struct lm95234_data *data = dev_get_drvdata(dev); - unsigned long val; - u8 mask = to_sensor_dev_attr(attr)->index; - int ret = lm95234_update_device(data); - - if (ret) - return ret; - - ret = kstrtoul(buf, 10, &val); - if (ret < 0) - return ret; - - if (val != 1 && val != 2) - return -EINVAL; - - mutex_lock(&data->update_lock); - if (val == 1) - data->sensor_type |= mask; - else - data->sensor_type &= ~mask; - data->valid = false; - i2c_smbus_write_byte_data(data->client, LM95234_REG_REM_MODEL, - data->sensor_type); - mutex_unlock(&data->update_lock); - - return count; + struct regmap *regmap = data->regmap; + + switch (attr) { + case hwmon_temp_enable: + if (val && val != 1) + return -EINVAL; + return regmap_update_bits(regmap, LM95234_REG_ENABLE, + BIT(channel), val ? BIT(channel) : 0); + case hwmon_temp_type: + if (val != 1 && val != 2) + return -EINVAL; + return regmap_update_bits(regmap, LM95234_REG_REM_MODEL, + BIT(channel), + val == 1 ? BIT(channel) : 0); + case hwmon_temp_offset: + val = DIV_ROUND_CLOSEST(clamp_val(val, -64000, 63500), 500); + return regmap_write(regmap, LM95234_REG_OFFSET(channel - 1), val); + case hwmon_temp_max: + val = clamp_val(val, 0, channel == 1 ? 127000 : 255000); + val = DIV_ROUND_CLOSEST(val, 1000); + return regmap_write(regmap, lm95234_crit_reg(channel), val); + case hwmon_temp_max_hyst: + return lm95234_hyst_set(data, val); + case hwmon_temp_crit: + val = DIV_ROUND_CLOSEST(clamp_val(val, 0, 255000), 1000); + return regmap_write(regmap, LM95234_REG_TCRIT1(channel), val); + default: + return -EOPNOTSUPP; + } + return 0; } -static ssize_t tcrit2_show(struct device *dev, struct device_attribute *attr, - char *buf) +static int lm95234_alarm_reg(int channel) { - struct lm95234_data *data = dev_get_drvdata(dev); - int index = to_sensor_dev_attr(attr)->index; - int ret = lm95234_update_device(data); - - if (ret) - return ret; - - return sprintf(buf, "%u", data->tcrit2[index] * 1000); + if (channel == 1 || channel == 2) + return LM95234_REG_STS_TCRIT2; + return LM95234_REG_STS_TCRIT1; } -static ssize_t tcrit2_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +static int lm95234_temp_read(struct device *dev, u32 attr, int channel, long *val) { struct lm95234_data *data = dev_get_drvdata(dev); - int index = to_sensor_dev_attr(attr)->index; - long val; - int ret = lm95234_update_device(data); - - if (ret) - return ret; - - ret = kstrtol(buf, 10, &val); - if (ret < 0) - return ret; - - val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, index ? 255 : 127); - - mutex_lock(&data->update_lock); - data->tcrit2[index] = val; - i2c_smbus_write_byte_data(data->client, LM95234_REG_TCRIT2(index), val); - mutex_unlock(&data->update_lock); + struct regmap *regmap = data->regmap; + u32 regval, mask; + int ret; - return count; + switch (attr) { + case hwmon_temp_enable: + ret = regmap_read(regmap, LM95234_REG_ENABLE, ®val); + if (ret) + return ret; + *val = !!(regval & BIT(channel)); + break; + case hwmon_temp_input: + return lm95234_read_temp(regmap, channel, val); + case hwmon_temp_max_alarm: + ret = regmap_read(regmap, lm95234_alarm_reg(channel), ®val); + if (ret) + return ret; + *val = !!(regval & BIT(channel)); + break; + case hwmon_temp_crit_alarm: + ret = regmap_read(regmap, LM95234_REG_STS_TCRIT1, ®val); + if (ret) + return ret; + *val = !!(regval & BIT(channel)); + break; + case hwmon_temp_crit_hyst: + return lm95234_hyst_get(regmap, LM95234_REG_TCRIT1(channel), val); + case hwmon_temp_type: + ret = regmap_read(regmap, LM95234_REG_REM_MODEL, ®val); + if (ret) + return ret; + *val = (regval & BIT(channel)) ? 1 : 2; + break; + case hwmon_temp_offset: + ret = regmap_read(regmap, LM95234_REG_OFFSET(channel - 1), ®val); + if (ret) + return ret; + *val = sign_extend32(regval, 7) * 500; + break; + case hwmon_temp_fault: + ret = regmap_read(regmap, LM95234_REG_STS_FAULT, ®val); + if (ret) + return ret; + mask = (BIT(0) | BIT(1)) << ((channel - 1) << 1); + *val = !!(regval & mask); + break; + case hwmon_temp_max: + ret = regmap_read(regmap, lm95234_crit_reg(channel), ®val); + if (ret) + return ret; + *val = regval * 1000; + break; + case hwmon_temp_max_hyst: + return lm95234_hyst_get(regmap, lm95234_crit_reg(channel), val); + case hwmon_temp_crit: + ret = regmap_read(regmap, LM95234_REG_TCRIT1(channel), ®val); + if (ret) + return ret; + *val = regval * 1000; + break; + default: + return -EOPNOTSUPP; + } + return 0; } -static ssize_t tcrit2_hyst_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct lm95234_data *data = dev_get_drvdata(dev); - int index = to_sensor_dev_attr(attr)->index; - int ret = lm95234_update_device(data); - - if (ret) - return ret; - - /* Result can be negative, so be careful with unsigned operands */ - return sprintf(buf, "%d", - ((int)data->tcrit2[index] - (int)data->thyst) * 1000); -} +static u16 update_intervals[] = { 143, 364, 1000, 2500 }; -static ssize_t tcrit1_show(struct device *dev, struct device_attribute *attr, - char *buf) +static int lm95234_chip_write(struct device *dev, u32 attr, long val) { struct lm95234_data *data = dev_get_drvdata(dev); - int index = to_sensor_dev_attr(attr)->index; - return sprintf(buf, "%u", data->tcrit1[index] * 1000); + switch (attr) { + case hwmon_chip_update_interval: + val = find_closest(val, update_intervals, ARRAY_SIZE(update_intervals)); + return regmap_write(data->regmap, LM95234_REG_CONVRATE, val); + default: + return -EOPNOTSUPP; + } + return 0; } -static ssize_t tcrit1_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +static int lm95234_chip_read(struct device *dev, u32 attr, long *val) { struct lm95234_data *data = dev_get_drvdata(dev); - int index = to_sensor_dev_attr(attr)->index; - int ret = lm95234_update_device(data); - long val; - - if (ret) - return ret; - - ret = kstrtol(buf, 10, &val); - if (ret < 0) - return ret; - - val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, 255); + u32 convrate; + int ret; - mutex_lock(&data->update_lock); - data->tcrit1[index] = val; - i2c_smbus_write_byte_data(data->client, LM95234_REG_TCRIT1(index), val); - mutex_unlock(&data->update_lock); + switch (attr) { + case hwmon_chip_update_interval: + ret = regmap_read(data->regmap, LM95234_REG_CONVRATE, &convrate); + if (ret) + return ret; - return count; + *val = update_intervals[convrate & 0x03]; + break; + default: + return -EOPNOTSUPP; + } + return 0; } -static ssize_t tcrit1_hyst_show(struct device *dev, - struct device_attribute *attr, char *buf) +static int lm95234_write(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long val) { - struct lm95234_data *data = dev_get_drvdata(dev); - int index = to_sensor_dev_attr(attr)->index; - int ret = lm95234_update_device(data); - - if (ret) - return ret; - - /* Result can be negative, so be careful with unsigned operands */ - return sprintf(buf, "%d", - ((int)data->tcrit1[index] - (int)data->thyst) * 1000); + switch (type) { + case hwmon_chip: + return lm95234_chip_write(dev, attr, val); + case hwmon_temp: + return lm95234_temp_write(dev, attr, channel, val); + default: + return -EOPNOTSUPP; + } } -static ssize_t tcrit1_hyst_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) +static int lm95234_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) { - struct lm95234_data *data = dev_get_drvdata(dev); - int index = to_sensor_dev_attr(attr)->index; - int ret = lm95234_update_device(data); - long val; - - if (ret) - return ret; - - ret = kstrtol(buf, 10, &val); - if (ret < 0) - return ret; - - val = DIV_ROUND_CLOSEST(val, 1000); - val = clamp_val((int)data->tcrit1[index] - val, 0, 31); - - mutex_lock(&data->update_lock); - data->thyst = val; - i2c_smbus_write_byte_data(data->client, LM95234_REG_TCRIT_HYST, val); - mutex_unlock(&data->update_lock); - - return count; + switch (type) { + case hwmon_chip: + return lm95234_chip_read(dev, attr, val); + case hwmon_temp: + return lm95234_temp_read(dev, attr, channel, val); + default: + return -EOPNOTSUPP; + } } -static ssize_t offset_show(struct device *dev, struct device_attribute *attr, - char *buf) +static umode_t lm95234_is_visible(const void *_data, enum hwmon_sensor_types type, + u32 attr, int channel) { - struct lm95234_data *data = dev_get_drvdata(dev); - int index = to_sensor_dev_attr(attr)->index; - int ret = lm95234_update_device(data); + const struct lm95234_data *data = _data; - if (ret) - return ret; + if (data->type == lm95233 && channel > 2) + return 0; - return sprintf(buf, "%d", data->toffset[index] * 500); + switch (type) { + case hwmon_chip: + switch (attr) { + case hwmon_chip_update_interval: + return 0644; + default: + break; + } + break; + case hwmon_temp: + switch (attr) { + case hwmon_temp_input: + case hwmon_temp_max_alarm: + return 0444; + case hwmon_temp_crit_alarm: + case hwmon_temp_crit_hyst: + return (channel && channel < 3) ? 0444 : 0; + case hwmon_temp_type: + case hwmon_temp_offset: + return channel ? 0644 : 0; + case hwmon_temp_fault: + return channel ? 0444 : 0; + case hwmon_temp_max: + case hwmon_temp_enable: + return 0644; + case hwmon_temp_max_hyst: + return channel ? 0444 : 0644; + case hwmon_temp_crit: + return (channel && channel < 3) ? 0644 : 0; + default: + break; + } + break; + default: + break; + } + return 0; } -static ssize_t offset_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - struct lm95234_data *data = dev_get_drvdata(dev); - int index = to_sensor_dev_attr(attr)->index; - int ret = lm95234_update_device(data); - long val; - - if (ret) - return ret; - - ret = kstrtol(buf, 10, &val); - if (ret < 0) - return ret; - - /* Accuracy is 1/2 degrees C */ - val = clamp_val(DIV_ROUND_CLOSEST(val, 500), -128, 127); +static const struct hwmon_channel_info * const lm95234_info[] = { + HWMON_CHANNEL_INFO(chip, HWMON_C_UPDATE_INTERVAL), + HWMON_CHANNEL_INFO(temp, + HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MAX_HYST | + HWMON_T_MAX_ALARM | HWMON_T_ENABLE, + HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MAX_HYST | + HWMON_T_MAX_ALARM | HWMON_T_FAULT | HWMON_T_TYPE | + HWMON_T_CRIT | HWMON_T_CRIT_HYST | + HWMON_T_CRIT_ALARM | HWMON_T_OFFSET | HWMON_T_ENABLE, + HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MAX_HYST | + HWMON_T_MAX_ALARM | HWMON_T_FAULT | HWMON_T_TYPE | + HWMON_T_CRIT | HWMON_T_CRIT_HYST | + HWMON_T_CRIT_ALARM | HWMON_T_OFFSET | HWMON_T_ENABLE, + HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MAX_HYST | + HWMON_T_MAX_ALARM | HWMON_T_FAULT | HWMON_T_TYPE | + HWMON_T_OFFSET | HWMON_T_ENABLE, + HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MAX_HYST | + HWMON_T_MAX_ALARM | HWMON_T_FAULT | HWMON_T_TYPE | + HWMON_T_OFFSET | HWMON_T_ENABLE), + NULL +}; - mutex_lock(&data->update_lock); - data->toffset[index] = val; - i2c_smbus_write_byte_data(data->client, LM95234_REG_OFFSET(index), val); - mutex_unlock(&data->update_lock); +static const struct hwmon_ops lm95234_hwmon_ops = { + .is_visible = lm95234_is_visible, + .read = lm95234_read, + .write = lm95234_write, +}; - return count; -} +static const struct hwmon_chip_info lm95234_chip_info = { + .ops = &lm95234_hwmon_ops, + .info = lm95234_info, +}; -static ssize_t update_interval_show(struct device *dev, - struct device_attribute *attr, char *buf) +static bool lm95234_volatile_reg(struct device *dev, unsigned int reg) { - struct lm95234_data *data = dev_get_drvdata(dev); - int ret = lm95234_update_device(data); - - if (ret) - return ret; - - return sprintf(buf, "%lu\n", - DIV_ROUND_CLOSEST(data->interval * 1000, HZ)); + switch (reg) { + case LM95234_REG_TEMPH(0) ... LM95234_REG_TEMPH(4): + case LM95234_REG_TEMPL(0) ... LM95234_REG_TEMPL(4): + case LM95234_REG_UTEMPH(0) ... LM95234_REG_UTEMPH(3): + case LM95234_REG_UTEMPL(0) ... LM95234_REG_UTEMPL(3): + case LM95234_REG_STS_FAULT: + case LM95234_REG_STS_TCRIT1: + case LM95234_REG_STS_TCRIT2: + case LM95234_REG_REM_MODEL_STS: + return true; + default: + return false; + } } -static ssize_t update_interval_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) +static bool lm95234_writeable_reg(struct device *dev, unsigned int reg) { - struct lm95234_data *data = dev_get_drvdata(dev); - int ret = lm95234_update_device(data); - unsigned long val; - u8 regval; - - if (ret) - return ret; - - ret = kstrtoul(buf, 10, &val); - if (ret < 0) - return ret; - - for (regval = 0; regval < 3; regval++) { - if (val <= update_intervals[regval]) - break; + switch (reg) { + case LM95234_REG_CONFIG ... LM95234_REG_FILTER: + case LM95234_REG_REM_MODEL ... LM95234_REG_OFFSET(3): + case LM95234_REG_TCRIT1(0) ... LM95234_REG_TCRIT1(4): + case LM95234_REG_TCRIT2(0) ... LM95234_REG_TCRIT2(1): + case LM95234_REG_TCRIT_HYST: + return true; + default: + return false; } - - mutex_lock(&data->update_lock); - data->interval = msecs_to_jiffies(update_intervals[regval]); - i2c_smbus_write_byte_data(data->client, LM95234_REG_CONVRATE, regval); - mutex_unlock(&data->update_lock); - - return count; } -static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0); -static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1); -static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 2); -static SENSOR_DEVICE_ATTR_RO(temp4_input, temp, 3); -static SENSOR_DEVICE_ATTR_RO(temp5_input, temp, 4); - -static SENSOR_DEVICE_ATTR_RO(temp2_fault, alarm, BIT(0) | BIT(1)); -static SENSOR_DEVICE_ATTR_RO(temp3_fault, alarm, BIT(2) | BIT(3)); -static SENSOR_DEVICE_ATTR_RO(temp4_fault, alarm, BIT(4) | BIT(5)); -static SENSOR_DEVICE_ATTR_RO(temp5_fault, alarm, BIT(6) | BIT(7)); - -static SENSOR_DEVICE_ATTR_RW(temp2_type, type, BIT(1)); -static SENSOR_DEVICE_ATTR_RW(temp3_type, type, BIT(2)); -static SENSOR_DEVICE_ATTR_RW(temp4_type, type, BIT(3)); -static SENSOR_DEVICE_ATTR_RW(temp5_type, type, BIT(4)); - -static SENSOR_DEVICE_ATTR_RW(temp1_max, tcrit1, 0); -static SENSOR_DEVICE_ATTR_RW(temp2_max, tcrit2, 0); -static SENSOR_DEVICE_ATTR_RW(temp3_max, tcrit2, 1); -static SENSOR_DEVICE_ATTR_RW(temp4_max, tcrit1, 3); -static SENSOR_DEVICE_ATTR_RW(temp5_max, tcrit1, 4); - -static SENSOR_DEVICE_ATTR_RW(temp1_max_hyst, tcrit1_hyst, 0); -static SENSOR_DEVICE_ATTR_RO(temp2_max_hyst, tcrit2_hyst, 0); -static SENSOR_DEVICE_ATTR_RO(temp3_max_hyst, tcrit2_hyst, 1); -static SENSOR_DEVICE_ATTR_RO(temp4_max_hyst, tcrit1_hyst, 3); -static SENSOR_DEVICE_ATTR_RO(temp5_max_hyst, tcrit1_hyst, 4); - -static SENSOR_DEVICE_ATTR_RO(temp1_max_alarm, alarm, BIT(0 + 8)); -static SENSOR_DEVICE_ATTR_RO(temp2_max_alarm, alarm, BIT(1 + 16)); -static SENSOR_DEVICE_ATTR_RO(temp3_max_alarm, alarm, BIT(2 + 16)); -static SENSOR_DEVICE_ATTR_RO(temp4_max_alarm, alarm, BIT(3 + 8)); -static SENSOR_DEVICE_ATTR_RO(temp5_max_alarm, alarm, BIT(4 + 8)); - -static SENSOR_DEVICE_ATTR_RW(temp2_crit, tcrit1, 1); -static SENSOR_DEVICE_ATTR_RW(temp3_crit, tcrit1, 2); - -static SENSOR_DEVICE_ATTR_RO(temp2_crit_hyst, tcrit1_hyst, 1); -static SENSOR_DEVICE_ATTR_RO(temp3_crit_hyst, tcrit1_hyst, 2); - -static SENSOR_DEVICE_ATTR_RO(temp2_crit_alarm, alarm, BIT(1 + 8)); -static SENSOR_DEVICE_ATTR_RO(temp3_crit_alarm, alarm, BIT(2 + 8)); - -static SENSOR_DEVICE_ATTR_RW(temp2_offset, offset, 0); -static SENSOR_DEVICE_ATTR_RW(temp3_offset, offset, 1); -static SENSOR_DEVICE_ATTR_RW(temp4_offset, offset, 2); -static SENSOR_DEVICE_ATTR_RW(temp5_offset, offset, 3); - -static DEVICE_ATTR_RW(update_interval); - -static struct attribute *lm95234_common_attrs[] = { - &sensor_dev_attr_temp1_input.dev_attr.attr, - &sensor_dev_attr_temp2_input.dev_attr.attr, - &sensor_dev_attr_temp3_input.dev_attr.attr, - &sensor_dev_attr_temp2_fault.dev_attr.attr, - &sensor_dev_attr_temp3_fault.dev_attr.attr, - &sensor_dev_attr_temp2_type.dev_attr.attr, - &sensor_dev_attr_temp3_type.dev_attr.attr, - &sensor_dev_attr_temp1_max.dev_attr.attr, - &sensor_dev_attr_temp2_max.dev_attr.attr, - &sensor_dev_attr_temp3_max.dev_attr.attr, - &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, - &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, - &sensor_dev_attr_temp3_max_hyst.dev_attr.attr, - &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp3_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_crit.dev_attr.attr, - &sensor_dev_attr_temp3_crit.dev_attr.attr, - &sensor_dev_attr_temp2_crit_hyst.dev_attr.attr, - &sensor_dev_attr_temp3_crit_hyst.dev_attr.attr, - &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp3_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_offset.dev_attr.attr, - &sensor_dev_attr_temp3_offset.dev_attr.attr, - &dev_attr_update_interval.attr, - NULL -}; - -static const struct attribute_group lm95234_common_group = { - .attrs = lm95234_common_attrs, -}; - -static struct attribute *lm95234_attrs[] = { - &sensor_dev_attr_temp4_input.dev_attr.attr, - &sensor_dev_attr_temp5_input.dev_attr.attr, - &sensor_dev_attr_temp4_fault.dev_attr.attr, - &sensor_dev_attr_temp5_fault.dev_attr.attr, - &sensor_dev_attr_temp4_type.dev_attr.attr, - &sensor_dev_attr_temp5_type.dev_attr.attr, - &sensor_dev_attr_temp4_max.dev_attr.attr, - &sensor_dev_attr_temp5_max.dev_attr.attr, - &sensor_dev_attr_temp4_max_hyst.dev_attr.attr, - &sensor_dev_attr_temp5_max_hyst.dev_attr.attr, - &sensor_dev_attr_temp4_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp5_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp4_offset.dev_attr.attr, - &sensor_dev_attr_temp5_offset.dev_attr.attr, - NULL -}; - -static const struct attribute_group lm95234_group = { - .attrs = lm95234_attrs, +static const struct regmap_config lm95234_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .writeable_reg = lm95234_writeable_reg, + .volatile_reg = lm95234_volatile_reg, + .cache_type = REGCACHE_MAPLE, }; static int lm95234_detect(struct i2c_client *client, @@ -648,62 +481,60 @@ static int lm95234_detect(struct i2c_client *client, return 0; } -static int lm95234_init_client(struct i2c_client *client) +static int lm95234_init_client(struct device *dev, struct regmap *regmap) { - int val, model; + u32 val, model; + int ret; /* start conversion if necessary */ - val = i2c_smbus_read_byte_data(client, LM95234_REG_CONFIG); - if (val < 0) - return val; - if (val & 0x40) - i2c_smbus_write_byte_data(client, LM95234_REG_CONFIG, - val & ~0x40); + ret = regmap_clear_bits(regmap, LM95234_REG_CONFIG, 0x40); + if (ret) + return ret; /* If diode type status reports an error, try to fix it */ - val = i2c_smbus_read_byte_data(client, LM95234_REG_REM_MODEL_STS); - if (val < 0) - return val; - model = i2c_smbus_read_byte_data(client, LM95234_REG_REM_MODEL); - if (model < 0) - return model; + ret = regmap_read(regmap, LM95234_REG_REM_MODEL_STS, &val); + if (ret < 0) + return ret; + ret = regmap_read(regmap, LM95234_REG_REM_MODEL, &model); + if (ret < 0) + return ret; if (model & val) { - dev_notice(&client->dev, + dev_notice(dev, "Fixing remote diode type misconfiguration (0x%x)\n", val); - i2c_smbus_write_byte_data(client, LM95234_REG_REM_MODEL, - model & ~val); + ret = regmap_write(regmap, LM95234_REG_REM_MODEL, model & ~val); } - return 0; + return ret; } -static const struct i2c_device_id lm95234_id[]; - static int lm95234_probe(struct i2c_client *client) { struct device *dev = &client->dev; struct lm95234_data *data; struct device *hwmon_dev; + struct regmap *regmap; int err; data = devm_kzalloc(dev, sizeof(struct lm95234_data), GFP_KERNEL); if (!data) return -ENOMEM; - data->client = client; + data->type = (uintptr_t)i2c_get_match_data(client); + + regmap = devm_regmap_init_i2c(client, &lm95234_regmap_config); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + data->regmap = regmap; mutex_init(&data->update_lock); /* Initialize the LM95234 chip */ - err = lm95234_init_client(client); + err = lm95234_init_client(dev, regmap); if (err < 0) return err; - data->groups[0] = &lm95234_common_group; - if (i2c_match_id(lm95234_id, client)->driver_data == lm95234) - data->groups[1] = &lm95234_group; - - hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, - data, data->groups); + hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, + data, &lm95234_chip_info, NULL); return PTR_ERR_OR_ZERO(hwmon_dev); } diff --git a/drivers/hwmon/lm95241.c b/drivers/hwmon/lm95241.c index 475551f5024b..cad0a0ff8416 100644 --- a/drivers/hwmon/lm95241.c +++ b/drivers/hwmon/lm95241.c @@ -457,8 +457,8 @@ static int lm95241_probe(struct i2c_client *client) /* Driver data (common to all clients) */ static const struct i2c_device_id lm95241_id[] = { - { "lm95231", 0 }, - { "lm95241", 0 }, + { "lm95231" }, + { "lm95241" }, { } }; MODULE_DEVICE_TABLE(i2c, lm95241_id); diff --git a/drivers/hwmon/lm95245.c b/drivers/hwmon/lm95245.c index 17ff54bd4015..3bdc30530847 100644 --- a/drivers/hwmon/lm95245.c +++ b/drivers/hwmon/lm95245.c @@ -161,18 +161,18 @@ static int lm95245_read_temp(struct device *dev, u32 attr, int channel, { struct lm95245_data *data = dev_get_drvdata(dev); struct regmap *regmap = data->regmap; - int ret, regl, regh, regvall, regvalh; + unsigned int regs[2]; + unsigned int regval; + u8 regvals[2]; + int ret; switch (attr) { case hwmon_temp_input: - regl = channel ? LM95245_REG_R_REMOTE_TEMPL_S : - LM95245_REG_R_LOCAL_TEMPL_S; - regh = channel ? LM95245_REG_R_REMOTE_TEMPH_S : - LM95245_REG_R_LOCAL_TEMPH_S; - ret = regmap_read(regmap, regl, ®vall); - if (ret < 0) - return ret; - ret = regmap_read(regmap, regh, ®valh); + regs[0] = channel ? LM95245_REG_R_REMOTE_TEMPL_S : + LM95245_REG_R_LOCAL_TEMPL_S; + regs[1] = channel ? LM95245_REG_R_REMOTE_TEMPH_S : + LM95245_REG_R_LOCAL_TEMPH_S; + ret = regmap_multi_reg_read(regmap, regs, regvals, 2); if (ret < 0) return ret; /* @@ -181,92 +181,77 @@ static int lm95245_read_temp(struct device *dev, u32 attr, int channel, * Use signed calculation for remote if signed bit is set * or if reported temperature is below signed limit. */ - if (!channel || (regvalh & 0x80) || regvalh < 0x7f) { - *val = temp_from_reg_signed(regvalh, regvall); + if (!channel || (regvals[1] & 0x80) || regvals[1] < 0x7f) { + *val = temp_from_reg_signed(regvals[1], regvals[0]); return 0; } - ret = regmap_read(regmap, LM95245_REG_R_REMOTE_TEMPL_U, - ®vall); - if (ret < 0) - return ret; - ret = regmap_read(regmap, LM95245_REG_R_REMOTE_TEMPH_U, - ®valh); - if (ret < 0) + ret = regmap_bulk_read(regmap, LM95245_REG_R_REMOTE_TEMPH_U, regvals, 2); + if (ret) return ret; - *val = temp_from_reg_unsigned(regvalh, regvall); + *val = temp_from_reg_unsigned(regvals[0], regvals[1]); return 0; case hwmon_temp_max: ret = regmap_read(regmap, LM95245_REG_RW_REMOTE_OS_LIMIT, - ®valh); + ®val); if (ret < 0) return ret; - *val = regvalh * 1000; + *val = regval * 1000; return 0; case hwmon_temp_crit: - regh = channel ? LM95245_REG_RW_REMOTE_TCRIT_LIMIT : - LM95245_REG_RW_LOCAL_OS_TCRIT_LIMIT; - ret = regmap_read(regmap, regh, ®valh); + regs[0] = channel ? LM95245_REG_RW_REMOTE_TCRIT_LIMIT : + LM95245_REG_RW_LOCAL_OS_TCRIT_LIMIT; + ret = regmap_read(regmap, regs[0], ®val); if (ret < 0) return ret; - *val = regvalh * 1000; + *val = regval * 1000; return 0; case hwmon_temp_max_hyst: - ret = regmap_read(regmap, LM95245_REG_RW_REMOTE_OS_LIMIT, - ®valh); + regs[0] = LM95245_REG_RW_REMOTE_OS_LIMIT; + regs[1] = LM95245_REG_RW_COMMON_HYSTERESIS; + ret = regmap_multi_reg_read(regmap, regs, regvals, 2); if (ret < 0) return ret; - ret = regmap_read(regmap, LM95245_REG_RW_COMMON_HYSTERESIS, - ®vall); - if (ret < 0) - return ret; - *val = (regvalh - regvall) * 1000; + *val = (regvals[0] - regvals[1]) * 1000; return 0; case hwmon_temp_crit_hyst: - regh = channel ? LM95245_REG_RW_REMOTE_TCRIT_LIMIT : - LM95245_REG_RW_LOCAL_OS_TCRIT_LIMIT; - ret = regmap_read(regmap, regh, ®valh); - if (ret < 0) - return ret; - ret = regmap_read(regmap, LM95245_REG_RW_COMMON_HYSTERESIS, - ®vall); + regs[0] = channel ? LM95245_REG_RW_REMOTE_TCRIT_LIMIT : + LM95245_REG_RW_LOCAL_OS_TCRIT_LIMIT; + regs[1] = LM95245_REG_RW_COMMON_HYSTERESIS; + + ret = regmap_multi_reg_read(regmap, regs, regvals, 2); if (ret < 0) return ret; - *val = (regvalh - regvall) * 1000; + *val = (regvals[0] - regvals[1]) * 1000; return 0; case hwmon_temp_type: - ret = regmap_read(regmap, LM95245_REG_RW_CONFIG2, ®valh); + ret = regmap_read(regmap, LM95245_REG_RW_CONFIG2, ®val); if (ret < 0) return ret; - *val = (regvalh & CFG2_REMOTE_TT) ? 1 : 2; + *val = (regval & CFG2_REMOTE_TT) ? 1 : 2; return 0; case hwmon_temp_offset: - ret = regmap_read(regmap, LM95245_REG_RW_REMOTE_OFFL, - ®vall); - if (ret < 0) - return ret; - ret = regmap_read(regmap, LM95245_REG_RW_REMOTE_OFFH, - ®valh); + ret = regmap_bulk_read(regmap, LM95245_REG_RW_REMOTE_OFFH, regvals, 2); if (ret < 0) return ret; - *val = temp_from_reg_signed(regvalh, regvall); + *val = temp_from_reg_signed(regvals[0], regvals[1]); return 0; case hwmon_temp_max_alarm: - ret = regmap_read(regmap, LM95245_REG_R_STATUS1, ®valh); + ret = regmap_read(regmap, LM95245_REG_R_STATUS1, ®val); if (ret < 0) return ret; - *val = !!(regvalh & STATUS1_ROS); + *val = !!(regval & STATUS1_ROS); return 0; case hwmon_temp_crit_alarm: - ret = regmap_read(regmap, LM95245_REG_R_STATUS1, ®valh); + ret = regmap_read(regmap, LM95245_REG_R_STATUS1, ®val); if (ret < 0) return ret; - *val = !!(regvalh & (channel ? STATUS1_RTCRIT : STATUS1_LOC)); + *val = !!(regval & (channel ? STATUS1_RTCRIT : STATUS1_LOC)); return 0; case hwmon_temp_fault: - ret = regmap_read(regmap, LM95245_REG_R_STATUS1, ®valh); + ret = regmap_read(regmap, LM95245_REG_R_STATUS1, ®val); if (ret < 0) return ret; - *val = !!(regvalh & STATUS1_DIODE_FAULT); + *val = !!(regval & STATUS1_DIODE_FAULT); return 0; default: return -EOPNOTSUPP; @@ -279,6 +264,7 @@ static int lm95245_write_temp(struct device *dev, u32 attr, int channel, struct lm95245_data *data = dev_get_drvdata(dev); struct regmap *regmap = data->regmap; unsigned int regval; + u8 regvals[2]; int ret, reg; switch (attr) { @@ -311,16 +297,10 @@ static int lm95245_write_temp(struct device *dev, u32 attr, int channel, case hwmon_temp_offset: val = clamp_val(val, -128000, 127875); val = val * 256 / 1000; - mutex_lock(&data->update_lock); - ret = regmap_write(regmap, LM95245_REG_RW_REMOTE_OFFL, - val & 0xe0); - if (ret < 0) { - mutex_unlock(&data->update_lock); - return ret; - } - ret = regmap_write(regmap, LM95245_REG_RW_REMOTE_OFFH, - (val >> 8) & 0xff); - mutex_unlock(&data->update_lock); + regvals[0] = val >> 8; + regvals[1] = val & 0xe0; + + ret = regmap_bulk_write(regmap, LM95245_REG_RW_REMOTE_OFFH, regvals, 2); return ret; case hwmon_temp_type: if (val != 1 && val != 2) @@ -578,8 +558,8 @@ static int lm95245_probe(struct i2c_client *client) /* Driver data (common to all clients) */ static const struct i2c_device_id lm95245_id[] = { - { "lm95235", 0 }, - { "lm95245", 0 }, + { "lm95235" }, + { "lm95245" }, { } }; MODULE_DEVICE_TABLE(i2c, lm95245_id); diff --git a/drivers/hwmon/ltc2945.c b/drivers/hwmon/ltc2945.c index 45b87a863cae..3e0e0e0687bd 100644 --- a/drivers/hwmon/ltc2945.c +++ b/drivers/hwmon/ltc2945.c @@ -508,7 +508,7 @@ static int ltc2945_probe(struct i2c_client *client) } static const struct i2c_device_id ltc2945_id[] = { - {"ltc2945", 0}, + {"ltc2945"}, { } }; diff --git a/drivers/hwmon/ltc2947-core.c b/drivers/hwmon/ltc2947-core.c index d2ff6e700770..244839167e51 100644 --- a/drivers/hwmon/ltc2947-core.c +++ b/drivers/hwmon/ltc2947-core.c @@ -11,7 +11,8 @@ #include <linux/hwmon.h> #include <linux/hwmon-sysfs.h> #include <linux/module.h> -#include <linux/of.h> +#include <linux/mod_devicetable.h> +#include <linux/property.h> #include <linux/regmap.h> #include "ltc2947.h" @@ -1034,9 +1035,8 @@ static int ltc2947_setup(struct ltc2947_data *st) /* 19.89E-6 * 10E9 */ st->lsb_energy = 19890; } - ret = of_property_read_u32_array(st->dev->of_node, - "adi,accumulator-ctl-pol", accum, - ARRAY_SIZE(accum)); + ret = device_property_read_u32_array(st->dev, "adi,accumulator-ctl-pol", + accum, ARRAY_SIZE(accum)); if (!ret) { u32 accum_reg = LTC2947_ACCUM_POL_1(accum[0]) | LTC2947_ACCUM_POL_2(accum[1]); @@ -1045,9 +1045,9 @@ static int ltc2947_setup(struct ltc2947_data *st) if (ret) return ret; } - ret = of_property_read_u32(st->dev->of_node, - "adi,accumulation-deadband-microamp", - &deadband); + ret = device_property_read_u32(st->dev, + "adi,accumulation-deadband-microamp", + &deadband); if (!ret) { /* the LSB is the same as the current, so 3mA */ ret = regmap_write(st->map, LTC2947_REG_ACCUM_DEADBAND, @@ -1056,7 +1056,7 @@ static int ltc2947_setup(struct ltc2947_data *st) return ret; } /* check gpio cfg */ - ret = of_property_read_u32(st->dev->of_node, "adi,gpio-out-pol", &pol); + ret = device_property_read_u32(st->dev, "adi,gpio-out-pol", &pol); if (!ret) { /* setup GPIO as output */ u32 gpio_ctl = LTC2947_GPIO_EN(1) | LTC2947_GPIO_FAN_EN(1) | @@ -1067,8 +1067,8 @@ static int ltc2947_setup(struct ltc2947_data *st) if (ret) return ret; } - ret = of_property_read_u32_array(st->dev->of_node, "adi,gpio-in-accum", - accum, ARRAY_SIZE(accum)); + ret = device_property_read_u32_array(st->dev, "adi,gpio-in-accum", + accum, ARRAY_SIZE(accum)); if (!ret) { /* * Setup the accum options. The gpioctl is already defined as diff --git a/drivers/hwmon/ltc2947-i2c.c b/drivers/hwmon/ltc2947-i2c.c index 33f574bf2ce7..176d710706dd 100644 --- a/drivers/hwmon/ltc2947-i2c.c +++ b/drivers/hwmon/ltc2947-i2c.c @@ -27,7 +27,7 @@ static int ltc2947_probe(struct i2c_client *i2c) } static const struct i2c_device_id ltc2947_id[] = { - {"ltc2947", 0}, + {"ltc2947"}, {} }; MODULE_DEVICE_TABLE(i2c, ltc2947_id); diff --git a/drivers/hwmon/ltc2990.c b/drivers/hwmon/ltc2990.c index 1ad362c0fd2c..f1c1933c52cf 100644 --- a/drivers/hwmon/ltc2990.c +++ b/drivers/hwmon/ltc2990.c @@ -259,7 +259,7 @@ static int ltc2990_i2c_probe(struct i2c_client *i2c) } static const struct i2c_device_id ltc2990_i2c_id[] = { - { "ltc2990", 0 }, + { "ltc2990" }, {} }; MODULE_DEVICE_TABLE(i2c, ltc2990_i2c_id); diff --git a/drivers/hwmon/ltc2991.c b/drivers/hwmon/ltc2991.c index 80a6e391f266..6d5d4cb846da 100644 --- a/drivers/hwmon/ltc2991.c +++ b/drivers/hwmon/ltc2991.c @@ -42,9 +42,9 @@ #define LTC2991_V7_V8_FILT_EN BIT(7) #define LTC2991_V7_V8_TEMP_EN BIT(5) #define LTC2991_V7_V8_DIFF_EN BIT(4) -#define LTC2991_V5_V6_FILT_EN BIT(7) -#define LTC2991_V5_V6_TEMP_EN BIT(5) -#define LTC2991_V5_V6_DIFF_EN BIT(4) +#define LTC2991_V5_V6_FILT_EN BIT(3) +#define LTC2991_V5_V6_TEMP_EN BIT(1) +#define LTC2991_V5_V6_DIFF_EN BIT(0) #define LTC2991_REPEAT_ACQ_EN BIT(4) #define LTC2991_T_INT_FILT_EN BIT(3) @@ -125,7 +125,7 @@ static int ltc2991_get_curr(struct ltc2991_state *st, u32 reg, int channel, /* Vx-Vy, 19.075uV/LSB */ *val = DIV_ROUND_CLOSEST(sign_extend32(reg_val, 14) * 19075, - st->r_sense_uohm[channel]); + (s32)st->r_sense_uohm[channel]); return 0; } @@ -225,8 +225,8 @@ static umode_t ltc2991_is_visible(const void *data, case hwmon_temp: switch (attr) { case hwmon_temp_input: - if (st->temp_en[channel] || - channel == LTC2991_T_INT_CH_NR) + if (channel == LTC2991_T_INT_CH_NR || + st->temp_en[channel]) return 0444; break; } @@ -284,7 +284,6 @@ static const struct regmap_config ltc2991_regmap_config = { static int ltc2991_init(struct ltc2991_state *st, struct device *dev) { - struct fwnode_handle *child; int ret; u32 val, addr; u8 v5_v8_reg_data = 0, v1_v4_reg_data = 0; @@ -294,17 +293,13 @@ static int ltc2991_init(struct ltc2991_state *st, struct device *dev) return dev_err_probe(dev, ret, "failed to enable regulator\n"); - device_for_each_child_node(dev, child) { + device_for_each_child_node_scoped(dev, child) { ret = fwnode_property_read_u32(child, "reg", &addr); - if (ret < 0) { - fwnode_handle_put(child); + if (ret < 0) return ret; - } - if (addr > 3) { - fwnode_handle_put(child); + if (addr > 3) return -EINVAL; - } ret = fwnode_property_read_u32(child, "shunt-resistor-micro-ohms", @@ -414,7 +409,7 @@ static const struct of_device_id ltc2991_of_match[] = { MODULE_DEVICE_TABLE(of, ltc2991_of_match); static const struct i2c_device_id ltc2991_i2c_id[] = { - { "ltc2991", 0 }, + { "ltc2991" }, {} }; MODULE_DEVICE_TABLE(i2c, ltc2991_i2c_id); diff --git a/drivers/hwmon/ltc2992.c b/drivers/hwmon/ltc2992.c index 001799bc28ed..541fa09dc6e7 100644 --- a/drivers/hwmon/ltc2992.c +++ b/drivers/hwmon/ltc2992.c @@ -854,31 +854,24 @@ static const struct regmap_config ltc2992_regmap_config = { static int ltc2992_parse_dt(struct ltc2992_state *st) { - struct fwnode_handle *fwnode; - struct fwnode_handle *child; u32 addr; u32 val; int ret; - fwnode = dev_fwnode(&st->client->dev); - - fwnode_for_each_available_child_node(fwnode, child) { + device_for_each_child_node_scoped(&st->client->dev, child) { ret = fwnode_property_read_u32(child, "reg", &addr); - if (ret < 0) { - fwnode_handle_put(child); + if (ret < 0) return ret; - } - if (addr > 1) { - fwnode_handle_put(child); + if (addr > 1) return -EINVAL; - } ret = fwnode_property_read_u32(child, "shunt-resistor-micro-ohms", &val); if (!ret) { if (!val) return dev_err_probe(&st->client->dev, -EINVAL, "shunt resistor value cannot be zero\n"); + st->r_sense_uohm[addr] = val; } } @@ -922,7 +915,7 @@ static const struct of_device_id ltc2992_of_match[] = { MODULE_DEVICE_TABLE(of, ltc2992_of_match); static const struct i2c_device_id ltc2992_i2c_id[] = { - {"ltc2992", 0}, + {"ltc2992"}, {} }; MODULE_DEVICE_TABLE(i2c, ltc2992_i2c_id); diff --git a/drivers/hwmon/ltc4151.c b/drivers/hwmon/ltc4151.c index f42ac3c9475e..fa66eda78efe 100644 --- a/drivers/hwmon/ltc4151.c +++ b/drivers/hwmon/ltc4151.c @@ -188,7 +188,7 @@ static int ltc4151_probe(struct i2c_client *client) } static const struct i2c_device_id ltc4151_id[] = { - { "ltc4151", 0 }, + { "ltc4151" }, { } }; MODULE_DEVICE_TABLE(i2c, ltc4151_id); diff --git a/drivers/hwmon/ltc4215.c b/drivers/hwmon/ltc4215.c index 66fd28f713ab..cce452711cec 100644 --- a/drivers/hwmon/ltc4215.c +++ b/drivers/hwmon/ltc4215.c @@ -245,7 +245,7 @@ static int ltc4215_probe(struct i2c_client *client) } static const struct i2c_device_id ltc4215_id[] = { - { "ltc4215", 0 }, + { "ltc4215" }, { } }; MODULE_DEVICE_TABLE(i2c, ltc4215_id); diff --git a/drivers/hwmon/ltc4222.c b/drivers/hwmon/ltc4222.c index 9098ef521739..f7eb007fd766 100644 --- a/drivers/hwmon/ltc4222.c +++ b/drivers/hwmon/ltc4222.c @@ -200,7 +200,7 @@ static int ltc4222_probe(struct i2c_client *client) } static const struct i2c_device_id ltc4222_id[] = { - {"ltc4222", 0}, + {"ltc4222"}, { } }; diff --git a/drivers/hwmon/ltc4245.c b/drivers/hwmon/ltc4245.c index b90184a3e0ec..14593bc81e85 100644 --- a/drivers/hwmon/ltc4245.c +++ b/drivers/hwmon/ltc4245.c @@ -469,7 +469,7 @@ static int ltc4245_probe(struct i2c_client *client) } static const struct i2c_device_id ltc4245_id[] = { - { "ltc4245", 0 }, + { "ltc4245" }, { } }; MODULE_DEVICE_TABLE(i2c, ltc4245_id); diff --git a/drivers/hwmon/ltc4260.c b/drivers/hwmon/ltc4260.c index 52f7a809b27b..9750dc9aa336 100644 --- a/drivers/hwmon/ltc4260.c +++ b/drivers/hwmon/ltc4260.c @@ -163,7 +163,7 @@ static int ltc4260_probe(struct i2c_client *client) } static const struct i2c_device_id ltc4260_id[] = { - {"ltc4260", 0}, + {"ltc4260"}, { } }; diff --git a/drivers/hwmon/ltc4261.c b/drivers/hwmon/ltc4261.c index 509e68176c7a..2cd218a6a3be 100644 --- a/drivers/hwmon/ltc4261.c +++ b/drivers/hwmon/ltc4261.c @@ -222,7 +222,7 @@ static int ltc4261_probe(struct i2c_client *client) } static const struct i2c_device_id ltc4261_id[] = { - {"ltc4261", 0}, + {"ltc4261"}, {} }; diff --git a/drivers/hwmon/ltc4282.c b/drivers/hwmon/ltc4282.c index 4f608a3790fb..7f38d2696239 100644 --- a/drivers/hwmon/ltc4282.c +++ b/drivers/hwmon/ltc4282.c @@ -1674,47 +1674,19 @@ static int ltc4282_show_power1_bad_fault_log(void *arg, u64 *val) DEFINE_DEBUGFS_ATTRIBUTE(ltc4282_power1_bad_fault_log, ltc4282_show_power1_bad_fault_log, NULL, "%llu\n"); -static void ltc4282_debugfs_remove(void *dir) +static void ltc4282_debugfs_init(struct ltc4282_state *st, struct i2c_client *i2c) { - debugfs_remove_recursive(dir); -} - -static void ltc4282_debugfs_init(struct ltc4282_state *st, - struct i2c_client *i2c, - const struct device *hwmon) -{ - const char *debugfs_name; - struct dentry *dentry; - int ret; - - if (!IS_ENABLED(CONFIG_DEBUG_FS)) - return; - - debugfs_name = devm_kasprintf(&i2c->dev, GFP_KERNEL, "ltc4282-%s", - dev_name(hwmon)); - if (!debugfs_name) - return; - - dentry = debugfs_create_dir(debugfs_name, NULL); - if (IS_ERR(dentry)) - return; - - ret = devm_add_action_or_reset(&i2c->dev, ltc4282_debugfs_remove, - dentry); - if (ret) - return; - - debugfs_create_file_unsafe("power1_bad_fault_log", 0400, dentry, st, + debugfs_create_file_unsafe("power1_bad_fault_log", 0400, i2c->debugfs, st, <c4282_power1_bad_fault_log); - debugfs_create_file_unsafe("in0_fet_short_fault_log", 0400, dentry, st, + debugfs_create_file_unsafe("in0_fet_short_fault_log", 0400, i2c->debugfs, st, <c4282_fet_short_fault_log); - debugfs_create_file_unsafe("in0_fet_bad_fault_log", 0400, dentry, st, + debugfs_create_file_unsafe("in0_fet_bad_fault_log", 0400, i2c->debugfs, st, <c4282_fet_bad_fault_log); - debugfs_create_file_unsafe("in1_crit_fault_log", 0400, dentry, st, + debugfs_create_file_unsafe("in1_crit_fault_log", 0400, i2c->debugfs, st, <c4282_in1_crit_fault_log); - debugfs_create_file_unsafe("in1_lcrit_fault_log", 0400, dentry, st, + debugfs_create_file_unsafe("in1_lcrit_fault_log", 0400, i2c->debugfs, st, <c4282_in1_lcrit_fault_log); - debugfs_create_file_unsafe("curr1_crit_fault_log", 0400, dentry, st, + debugfs_create_file_unsafe("curr1_crit_fault_log", 0400, i2c->debugfs, st, <c4282_curr1_crit_fault_log); } @@ -1757,7 +1729,7 @@ static int ltc4282_probe(struct i2c_client *i2c) if (IS_ERR(hwmon)) return PTR_ERR(hwmon); - ltc4282_debugfs_init(st, i2c, hwmon); + ltc4282_debugfs_init(st, i2c); return 0; } diff --git a/drivers/hwmon/max127.c b/drivers/hwmon/max127.c index da2289e3560a..a9aab8862f5e 100644 --- a/drivers/hwmon/max127.c +++ b/drivers/hwmon/max127.c @@ -329,7 +329,7 @@ static int max127_probe(struct i2c_client *client) } static const struct i2c_device_id max127_id[] = { - { "max127", 0 }, + { "max127" }, { } }; MODULE_DEVICE_TABLE(i2c, max127_id); diff --git a/drivers/hwmon/max16065.c b/drivers/hwmon/max16065.c index aa38c45adc09..0ccb5eb596fc 100644 --- a/drivers/hwmon/max16065.c +++ b/drivers/hwmon/max16065.c @@ -79,7 +79,7 @@ static const bool max16065_have_current[] = { }; struct max16065_data { - enum chips type; + enum chips chip; struct i2c_client *client; const struct attribute_group *groups[4]; struct mutex update_lock; @@ -114,9 +114,10 @@ static inline int LIMIT_TO_MV(int limit, int range) return limit * range / 256; } -static inline int MV_TO_LIMIT(int mv, int range) +static inline int MV_TO_LIMIT(unsigned long mv, int range) { - return clamp_val(DIV_ROUND_CLOSEST(mv * 256, range), 0, 255); + mv = clamp_val(mv, 0, ULONG_MAX / 256); + return DIV_ROUND_CLOSEST(clamp_val(mv * 256, 0, range * 255), range); } static inline int ADC_TO_CURR(int adc, int gain) @@ -161,10 +162,17 @@ static struct max16065_data *max16065_update_device(struct device *dev) MAX16065_CURR_SENSE); } - for (i = 0; i < DIV_ROUND_UP(data->num_adc, 8); i++) + for (i = 0; i < 2; i++) data->fault[i] = i2c_smbus_read_byte_data(client, MAX16065_FAULT(i)); + /* + * MAX16067 and MAX16068 have separate undervoltage and + * overvoltage alarm bits. Squash them together. + */ + if (data->chip == max16067 || data->chip == max16068) + data->fault[0] |= data->fault[1]; + data->last_updated = jiffies; data->valid = true; } @@ -493,8 +501,6 @@ static const struct attribute_group max16065_max_group = { .is_visible = max16065_secondary_is_visible, }; -static const struct i2c_device_id max16065_id[]; - static int max16065_probe(struct i2c_client *client) { struct i2c_adapter *adapter = client->adapter; @@ -505,7 +511,7 @@ static int max16065_probe(struct i2c_client *client) bool have_secondary; /* true if chip has secondary limits */ bool secondary_is_max = false; /* secondary limits reflect max */ int groups = 0; - const struct i2c_device_id *id = i2c_match_id(max16065_id, client); + enum chips chip = (uintptr_t)i2c_get_match_data(client); if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_READ_WORD_DATA)) @@ -515,12 +521,13 @@ static int max16065_probe(struct i2c_client *client) if (unlikely(!data)) return -ENOMEM; + data->chip = chip; data->client = client; mutex_init(&data->update_lock); - data->num_adc = max16065_num_adc[id->driver_data]; - data->have_current = max16065_have_current[id->driver_data]; - have_secondary = max16065_have_secondary[id->driver_data]; + data->num_adc = max16065_num_adc[chip]; + data->have_current = max16065_have_current[chip]; + have_secondary = max16065_have_secondary[chip]; if (have_secondary) { val = i2c_smbus_read_byte_data(client, MAX16065_SW_ENABLE); diff --git a/drivers/hwmon/max1619.c b/drivers/hwmon/max1619.c index 500dc926a7a7..9b6d03cff4df 100644 --- a/drivers/hwmon/max1619.c +++ b/drivers/hwmon/max1619.c @@ -12,280 +12,361 @@ * http://pdfserv.maxim-ic.com/en/ds/MAX1619.pdf */ -#include <linux/module.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/jiffies.h> -#include <linux/i2c.h> -#include <linux/hwmon.h> -#include <linux/hwmon-sysfs.h> #include <linux/err.h> -#include <linux/mutex.h> -#include <linux/sysfs.h> +#include <linux/hwmon.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/regmap.h> +#include <linux/util_macros.h> static const unsigned short normal_i2c[] = { 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e, I2C_CLIENT_END }; -/* - * The MAX1619 registers - */ +#define MAX1619_REG_LOCAL_TEMP 0x00 +#define MAX1619_REG_REMOTE_TEMP 0x01 +#define MAX1619_REG_STATUS 0x02 +#define MAX1619_REG_CONFIG 0x03 +#define MAX1619_REG_CONVRATE 0x04 +#define MAX1619_REG_REMOTE_HIGH 0x07 +#define MAX1619_REG_REMOTE_LOW 0x08 +#define MAX1619_REG_REMOTE_CRIT 0x10 +#define MAX1619_REG_REMOTE_CRIT_HYST 0x11 +#define MAX1619_REG_MAN_ID 0xFE +#define MAX1619_REG_CHIP_ID 0xFF + +static int get_alarms(struct regmap *regmap) +{ + static u32 regs[2] = { MAX1619_REG_STATUS, MAX1619_REG_CONFIG }; + u8 regdata[2]; + int ret; -#define MAX1619_REG_R_MAN_ID 0xFE -#define MAX1619_REG_R_CHIP_ID 0xFF -#define MAX1619_REG_R_CONFIG 0x03 -#define MAX1619_REG_W_CONFIG 0x09 -#define MAX1619_REG_R_CONVRATE 0x04 -#define MAX1619_REG_W_CONVRATE 0x0A -#define MAX1619_REG_R_STATUS 0x02 -#define MAX1619_REG_R_LOCAL_TEMP 0x00 -#define MAX1619_REG_R_REMOTE_TEMP 0x01 -#define MAX1619_REG_R_REMOTE_HIGH 0x07 -#define MAX1619_REG_W_REMOTE_HIGH 0x0D -#define MAX1619_REG_R_REMOTE_LOW 0x08 -#define MAX1619_REG_W_REMOTE_LOW 0x0E -#define MAX1619_REG_R_REMOTE_CRIT 0x10 -#define MAX1619_REG_W_REMOTE_CRIT 0x12 -#define MAX1619_REG_R_TCRIT_HYST 0x11 -#define MAX1619_REG_W_TCRIT_HYST 0x13 + ret = regmap_multi_reg_read(regmap, regs, regdata, 2); + if (ret) + return ret; -/* - * Conversions - */ + /* OVERT status bit may be reversed */ + if (!(regdata[1] & 0x20)) + regdata[0] ^= 0x02; -static int temp_from_reg(int val) -{ - return (val & 0x80 ? val-0x100 : val) * 1000; + return regdata[0] & 0x1e; } -static int temp_to_reg(int val) +static int max1619_temp_read(struct regmap *regmap, u32 attr, int channel, long *val) { - return (val < 0 ? val+0x100*1000 : val) / 1000; + int reg = -1, alarm_bit = 0; + u32 temp; + int ret; + + switch (attr) { + case hwmon_temp_input: + reg = channel ? MAX1619_REG_REMOTE_TEMP : MAX1619_REG_LOCAL_TEMP; + break; + case hwmon_temp_min: + reg = MAX1619_REG_REMOTE_LOW; + break; + case hwmon_temp_max: + reg = MAX1619_REG_REMOTE_HIGH; + break; + case hwmon_temp_crit: + reg = MAX1619_REG_REMOTE_CRIT; + break; + case hwmon_temp_crit_hyst: + reg = MAX1619_REG_REMOTE_CRIT_HYST; + break; + case hwmon_temp_min_alarm: + alarm_bit = 3; + break; + case hwmon_temp_max_alarm: + alarm_bit = 4; + break; + case hwmon_temp_crit_alarm: + alarm_bit = 1; + break; + case hwmon_temp_fault: + alarm_bit = 2; + break; + default: + return -EOPNOTSUPP; + } + if (reg >= 0) { + ret = regmap_read(regmap, reg, &temp); + if (ret < 0) + return ret; + *val = sign_extend32(temp, 7) * 1000; + } else { + ret = get_alarms(regmap); + if (ret < 0) + return ret; + *val = !!(ret & BIT(alarm_bit)); + } + return 0; } -enum temp_index { - t_input1 = 0, - t_input2, - t_low2, - t_high2, - t_crit2, - t_hyst2, - t_num_regs -}; - -/* - * Client data (each client gets its own) - */ - -struct max1619_data { - struct i2c_client *client; - struct mutex update_lock; - bool valid; /* false until following fields are valid */ - unsigned long last_updated; /* in jiffies */ - - /* registers values */ - u8 temp[t_num_regs]; /* index with enum temp_index */ - u8 alarms; -}; +static u16 update_intervals[] = { 16000, 8000, 4000, 2000, 1000, 500, 250, 125 }; -static const u8 regs_read[t_num_regs] = { - [t_input1] = MAX1619_REG_R_LOCAL_TEMP, - [t_input2] = MAX1619_REG_R_REMOTE_TEMP, - [t_low2] = MAX1619_REG_R_REMOTE_LOW, - [t_high2] = MAX1619_REG_R_REMOTE_HIGH, - [t_crit2] = MAX1619_REG_R_REMOTE_CRIT, - [t_hyst2] = MAX1619_REG_R_TCRIT_HYST, -}; - -static const u8 regs_write[t_num_regs] = { - [t_low2] = MAX1619_REG_W_REMOTE_LOW, - [t_high2] = MAX1619_REG_W_REMOTE_HIGH, - [t_crit2] = MAX1619_REG_W_REMOTE_CRIT, - [t_hyst2] = MAX1619_REG_W_TCRIT_HYST, -}; - -static struct max1619_data *max1619_update_device(struct device *dev) +static int max1619_chip_read(struct regmap *regmap, u32 attr, long *val) { - struct max1619_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - int config, i; - - mutex_lock(&data->update_lock); - - if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) { - dev_dbg(&client->dev, "Updating max1619 data.\n"); - for (i = 0; i < t_num_regs; i++) - data->temp[i] = i2c_smbus_read_byte_data(client, - regs_read[i]); - data->alarms = i2c_smbus_read_byte_data(client, - MAX1619_REG_R_STATUS); - /* If OVERT polarity is low, reverse alarm bit */ - config = i2c_smbus_read_byte_data(client, MAX1619_REG_R_CONFIG); - if (!(config & 0x20)) - data->alarms ^= 0x02; - - data->last_updated = jiffies; - data->valid = true; + int alarms, ret; + u32 regval; + + switch (attr) { + case hwmon_chip_update_interval: + ret = regmap_read(regmap, MAX1619_REG_CONVRATE, ®val); + if (ret < 0) + return ret; + *val = update_intervals[regval & 7]; + break; + case hwmon_chip_alarms: + alarms = get_alarms(regmap); + if (alarms < 0) + return alarms; + *val = alarms; + break; + default: + return -EOPNOTSUPP; } - - mutex_unlock(&data->update_lock); - - return data; + return 0; } -/* - * Sysfs stuff - */ - -static ssize_t temp_show(struct device *dev, struct device_attribute *devattr, - char *buf) +static int max1619_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct max1619_data *data = max1619_update_device(dev); + struct regmap *regmap = dev_get_drvdata(dev); + + switch (type) { + case hwmon_chip: + return max1619_chip_read(regmap, attr, val); + case hwmon_temp: + return max1619_temp_read(regmap, attr, channel, val); + default: + return -EOPNOTSUPP; + } +} - return sprintf(buf, "%d\n", temp_from_reg(data->temp[attr->index])); +static int max1619_chip_write(struct regmap *regmap, u32 attr, long val) +{ + switch (attr) { + case hwmon_chip_update_interval: + val = find_closest_descending(val, update_intervals, ARRAY_SIZE(update_intervals)); + return regmap_write(regmap, MAX1619_REG_CONVRATE, val); + default: + return -EOPNOTSUPP; + } } -static ssize_t temp_store(struct device *dev, - struct device_attribute *devattr, const char *buf, - size_t count) +static int max1619_temp_write(struct regmap *regmap, + u32 attr, int channel, long val) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct max1619_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - long val; - int err = kstrtol(buf, 10, &val); - if (err) - return err; - - mutex_lock(&data->update_lock); - data->temp[attr->index] = temp_to_reg(val); - i2c_smbus_write_byte_data(client, regs_write[attr->index], - data->temp[attr->index]); - mutex_unlock(&data->update_lock); - return count; + int reg; + + switch (attr) { + case hwmon_temp_min: + reg = MAX1619_REG_REMOTE_LOW; + break; + case hwmon_temp_max: + reg = MAX1619_REG_REMOTE_HIGH; + break; + case hwmon_temp_crit: + reg = MAX1619_REG_REMOTE_CRIT; + break; + case hwmon_temp_crit_hyst: + reg = MAX1619_REG_REMOTE_CRIT_HYST; + break; + default: + return -EOPNOTSUPP; + } + val = DIV_ROUND_CLOSEST(clamp_val(val, -128000, 127000), 1000); + return regmap_write(regmap, reg, val); } -static ssize_t alarms_show(struct device *dev, struct device_attribute *attr, - char *buf) +static int max1619_write(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long val) { - struct max1619_data *data = max1619_update_device(dev); - return sprintf(buf, "%d\n", data->alarms); + struct regmap *regmap = dev_get_drvdata(dev); + + switch (type) { + case hwmon_chip: + return max1619_chip_write(regmap, attr, val); + case hwmon_temp: + return max1619_temp_write(regmap, attr, channel, val); + default: + return -EOPNOTSUPP; + } } -static ssize_t alarm_show(struct device *dev, struct device_attribute *attr, - char *buf) +static umode_t max1619_is_visible(const void *_data, enum hwmon_sensor_types type, + u32 attr, int channel) { - int bitnr = to_sensor_dev_attr(attr)->index; - struct max1619_data *data = max1619_update_device(dev); - return sprintf(buf, "%d\n", (data->alarms >> bitnr) & 1); + switch (type) { + case hwmon_chip: + switch (attr) { + case hwmon_chip_update_interval: + return 0644; + case hwmon_chip_alarms: + return 0444; + default: + break; + } + break; + case hwmon_temp: + switch (attr) { + case hwmon_temp_input: + return 0444; + case hwmon_temp_min: + case hwmon_temp_max: + case hwmon_temp_crit: + case hwmon_temp_crit_hyst: + return 0644; + case hwmon_temp_min_alarm: + case hwmon_temp_max_alarm: + case hwmon_temp_crit_alarm: + case hwmon_temp_fault: + return 0444; + default: + break; + } + break; + default: + break; + } + return 0; } -static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, t_input1); -static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, t_input2); -static SENSOR_DEVICE_ATTR_RW(temp2_min, temp, t_low2); -static SENSOR_DEVICE_ATTR_RW(temp2_max, temp, t_high2); -static SENSOR_DEVICE_ATTR_RW(temp2_crit, temp, t_crit2); -static SENSOR_DEVICE_ATTR_RW(temp2_crit_hyst, temp, t_hyst2); - -static DEVICE_ATTR_RO(alarms); -static SENSOR_DEVICE_ATTR_RO(temp2_crit_alarm, alarm, 1); -static SENSOR_DEVICE_ATTR_RO(temp2_fault, alarm, 2); -static SENSOR_DEVICE_ATTR_RO(temp2_min_alarm, alarm, 3); -static SENSOR_DEVICE_ATTR_RO(temp2_max_alarm, alarm, 4); - -static struct attribute *max1619_attrs[] = { - &sensor_dev_attr_temp1_input.dev_attr.attr, - &sensor_dev_attr_temp2_input.dev_attr.attr, - &sensor_dev_attr_temp2_min.dev_attr.attr, - &sensor_dev_attr_temp2_max.dev_attr.attr, - &sensor_dev_attr_temp2_crit.dev_attr.attr, - &sensor_dev_attr_temp2_crit_hyst.dev_attr.attr, - - &dev_attr_alarms.attr, - &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_fault.dev_attr.attr, - &sensor_dev_attr_temp2_min_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, +static const struct hwmon_channel_info * const max1619_info[] = { + HWMON_CHANNEL_INFO(chip, HWMON_C_ALARMS | HWMON_C_UPDATE_INTERVAL), + HWMON_CHANNEL_INFO(temp, + HWMON_T_INPUT, + HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | + HWMON_T_CRIT | HWMON_T_CRIT_HYST | + HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM | + HWMON_T_CRIT_ALARM | HWMON_T_FAULT), NULL }; -ATTRIBUTE_GROUPS(max1619); + +static const struct hwmon_ops max1619_hwmon_ops = { + .is_visible = max1619_is_visible, + .read = max1619_read, + .write = max1619_write, +}; + +static const struct hwmon_chip_info max1619_chip_info = { + .ops = &max1619_hwmon_ops, + .info = max1619_info, +}; /* Return 0 if detection is successful, -ENODEV otherwise */ static int max1619_detect(struct i2c_client *client, struct i2c_board_info *info) { struct i2c_adapter *adapter = client->adapter; - u8 reg_config, reg_convrate, reg_status, man_id, chip_id; + int regval; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) return -ENODEV; - /* detection */ - reg_config = i2c_smbus_read_byte_data(client, MAX1619_REG_R_CONFIG); - reg_convrate = i2c_smbus_read_byte_data(client, MAX1619_REG_R_CONVRATE); - reg_status = i2c_smbus_read_byte_data(client, MAX1619_REG_R_STATUS); - if ((reg_config & 0x03) != 0x00 - || reg_convrate > 0x07 || (reg_status & 0x61) != 0x00) { - dev_dbg(&adapter->dev, "MAX1619 detection failed at 0x%02x\n", - client->addr); + regval = i2c_smbus_read_byte_data(client, MAX1619_REG_CONFIG); + if (regval < 0 || (regval & 0x03)) + return -ENODEV; + regval = i2c_smbus_read_byte_data(client, MAX1619_REG_CONVRATE); + if (regval < 0 || regval > 0x07) + return -ENODEV; + regval = i2c_smbus_read_byte_data(client, MAX1619_REG_STATUS); + if (regval < 0 || (regval & 0x61)) return -ENODEV; - } - /* identification */ - man_id = i2c_smbus_read_byte_data(client, MAX1619_REG_R_MAN_ID); - chip_id = i2c_smbus_read_byte_data(client, MAX1619_REG_R_CHIP_ID); - if (man_id != 0x4D || chip_id != 0x04) { - dev_info(&adapter->dev, - "Unsupported chip (man_id=0x%02X, chip_id=0x%02X).\n", - man_id, chip_id); + regval = i2c_smbus_read_byte_data(client, MAX1619_REG_MAN_ID); + if (regval != 0x4d) + return -ENODEV; + regval = i2c_smbus_read_byte_data(client, MAX1619_REG_CHIP_ID); + if (regval != 0x04) return -ENODEV; - } strscpy(info->type, "max1619", I2C_NAME_SIZE); return 0; } -static void max1619_init_client(struct i2c_client *client) +static int max1619_init_chip(struct regmap *regmap) { - u8 config; - - /* - * Start the conversions. - */ - i2c_smbus_write_byte_data(client, MAX1619_REG_W_CONVRATE, - 5); /* 2 Hz */ - config = i2c_smbus_read_byte_data(client, MAX1619_REG_R_CONFIG); - if (config & 0x40) - i2c_smbus_write_byte_data(client, MAX1619_REG_W_CONFIG, - config & 0xBF); /* run */ + int ret; + + ret = regmap_write(regmap, MAX1619_REG_CONVRATE, 5); /* 2 Hz */ + if (ret) + return ret; + + /* Start conversions */ + return regmap_clear_bits(regmap, MAX1619_REG_CONFIG, 0x40); } -static int max1619_probe(struct i2c_client *new_client) +/* regmap */ + +static int max1619_reg_read(void *context, unsigned int reg, unsigned int *val) { - struct max1619_data *data; - struct device *hwmon_dev; + int ret; - data = devm_kzalloc(&new_client->dev, sizeof(struct max1619_data), - GFP_KERNEL); - if (!data) - return -ENOMEM; + ret = i2c_smbus_read_byte_data(context, reg); + if (ret < 0) + return ret; + + *val = ret; + return 0; +} + +static int max1619_reg_write(void *context, unsigned int reg, unsigned int val) +{ + int offset = reg < MAX1619_REG_REMOTE_CRIT ? 6 : 2; + + return i2c_smbus_write_byte_data(context, reg + offset, val); +} + +static bool max1619_regmap_is_volatile(struct device *dev, unsigned int reg) +{ + return reg <= MAX1619_REG_STATUS; +} + +static bool max1619_regmap_is_writeable(struct device *dev, unsigned int reg) +{ + return reg > MAX1619_REG_STATUS && reg <= MAX1619_REG_REMOTE_CRIT_HYST; +} + +static const struct regmap_config max1619_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = MAX1619_REG_REMOTE_CRIT_HYST, + .cache_type = REGCACHE_MAPLE, + .volatile_reg = max1619_regmap_is_volatile, + .writeable_reg = max1619_regmap_is_writeable, +}; + +static const struct regmap_bus max1619_regmap_bus = { + .reg_write = max1619_reg_write, + .reg_read = max1619_reg_read, +}; + +static int max1619_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + struct device *hwmon_dev; + struct regmap *regmap; + int ret; - data->client = new_client; - mutex_init(&data->update_lock); + regmap = devm_regmap_init(dev, &max1619_regmap_bus, client, + &max1619_regmap_config); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); - /* Initialize the MAX1619 chip */ - max1619_init_client(new_client); + ret = max1619_init_chip(regmap); + if (ret) + return ret; - hwmon_dev = devm_hwmon_device_register_with_groups(&new_client->dev, - new_client->name, - data, - max1619_groups); + hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, + regmap, &max1619_chip_info, NULL); return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id max1619_id[] = { - { "max1619", 0 }, + { "max1619" }, { } }; MODULE_DEVICE_TABLE(i2c, max1619_id); diff --git a/drivers/hwmon/max1668.c b/drivers/hwmon/max1668.c index c4a02edefbee..a8197a86f559 100644 --- a/drivers/hwmon/max1668.c +++ b/drivers/hwmon/max1668.c @@ -6,15 +6,15 @@ * some credit to Christoph Scheurer, but largely a rewrite */ -#include <linux/module.h> +#include <linux/bitops.h> +#include <linux/bits.h> +#include <linux/err.h> +#include <linux/hwmon.h> +#include <linux/i2c.h> #include <linux/init.h> +#include <linux/module.h> +#include <linux/regmap.h> #include <linux/slab.h> -#include <linux/jiffies.h> -#include <linux/i2c.h> -#include <linux/hwmon.h> -#include <linux/hwmon-sysfs.h> -#include <linux/err.h> -#include <linux/mutex.h> /* Addresses to scan */ static const unsigned short max1668_addr_list[] = { @@ -30,14 +30,10 @@ static const unsigned short max1668_addr_list[] = { /* limits */ -/* write high limits */ -#define MAX1668_REG_LIMH_WR(nr) (0x13 + 2 * (nr)) -/* write low limits */ -#define MAX1668_REG_LIML_WR(nr) (0x14 + 2 * (nr)) -/* read high limits */ -#define MAX1668_REG_LIMH_RD(nr) (0x08 + 2 * (nr)) +/* high limits */ +#define MAX1668_REG_LIMH(nr) (0x08 + 2 * (nr)) /* read low limits */ -#define MAX1668_REG_LIML_RD(nr) (0x09 + 2 * (nr)) +#define MAX1668_REG_LIML(nr) (0x09 + 2 * (nr)) /* manufacturer and device ID Constants */ #define MAN_ID_MAXIM 0x4d @@ -50,309 +46,146 @@ static bool read_only; module_param(read_only, bool, 0); MODULE_PARM_DESC(read_only, "Don't set any values, read only mode"); -enum chips { max1668, max1805, max1989 }; - struct max1668_data { - struct i2c_client *client; - const struct attribute_group *groups[3]; - enum chips type; - - struct mutex update_lock; - bool valid; /* true if following fields are valid */ - unsigned long last_updated; /* In jiffies */ - - /* 1x local and 4x remote */ - s8 temp_max[5]; - s8 temp_min[5]; - s8 temp[5]; - u16 alarms; + struct regmap *regmap; + int channels; }; -static struct max1668_data *max1668_update_device(struct device *dev) +static int max1668_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) { struct max1668_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - struct max1668_data *ret = data; - s32 val; - int i; - - mutex_lock(&data->update_lock); - - if (data->valid && !time_after(jiffies, - data->last_updated + HZ + HZ / 2)) - goto abort; - - for (i = 0; i < 5; i++) { - val = i2c_smbus_read_byte_data(client, MAX1668_REG_TEMP(i)); - if (unlikely(val < 0)) { - ret = ERR_PTR(val); - goto abort; - } - data->temp[i] = (s8) val; - - val = i2c_smbus_read_byte_data(client, MAX1668_REG_LIMH_RD(i)); - if (unlikely(val < 0)) { - ret = ERR_PTR(val); - goto abort; - } - data->temp_max[i] = (s8) val; - - val = i2c_smbus_read_byte_data(client, MAX1668_REG_LIML_RD(i)); - if (unlikely(val < 0)) { - ret = ERR_PTR(val); - goto abort; - } - data->temp_min[i] = (s8) val; - } - - val = i2c_smbus_read_byte_data(client, MAX1668_REG_STAT1); - if (unlikely(val < 0)) { - ret = ERR_PTR(val); - goto abort; - } - data->alarms = val << 8; + struct regmap *regmap = data->regmap; + u32 regs[2] = { MAX1668_REG_STAT1, MAX1668_REG_TEMP(channel) }; + u8 regvals[2]; + u32 regval; + int ret; - val = i2c_smbus_read_byte_data(client, MAX1668_REG_STAT2); - if (unlikely(val < 0)) { - ret = ERR_PTR(val); - goto abort; + switch (attr) { + case hwmon_temp_input: + ret = regmap_read(regmap, MAX1668_REG_TEMP(channel), ®val); + if (ret) + return ret; + *val = sign_extend32(regval, 7) * 1000; + break; + case hwmon_temp_min: + ret = regmap_read(regmap, MAX1668_REG_LIML(channel), ®val); + if (ret) + return ret; + *val = sign_extend32(regval, 7) * 1000; + break; + case hwmon_temp_max: + ret = regmap_read(regmap, MAX1668_REG_LIMH(channel), ®val); + if (ret) + return ret; + *val = sign_extend32(regval, 7) * 1000; + break; + case hwmon_temp_min_alarm: + ret = regmap_read(regmap, + channel ? MAX1668_REG_STAT2 : MAX1668_REG_STAT1, + ®val); + if (ret) + return ret; + if (channel) + *val = !!(regval & BIT(9 - channel * 2)); + else + *val = !!(regval & BIT(5)); + break; + case hwmon_temp_max_alarm: + ret = regmap_read(regmap, + channel ? MAX1668_REG_STAT2 : MAX1668_REG_STAT1, + ®val); + if (ret) + return ret; + if (channel) + *val = !!(regval & BIT(8 - channel * 2)); + else + *val = !!(regval & BIT(6)); + break; + case hwmon_temp_fault: + ret = regmap_multi_reg_read(regmap, regs, regvals, 2); + if (ret) + return ret; + *val = !!((regvals[0] & BIT(4)) && regvals[1] == 127); + break; + default: + return -EOPNOTSUPP; } - data->alarms |= val; - - data->last_updated = jiffies; - data->valid = true; -abort: - mutex_unlock(&data->update_lock); - - return ret; -} - -static ssize_t show_temp(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - int index = to_sensor_dev_attr(devattr)->index; - struct max1668_data *data = max1668_update_device(dev); - - if (IS_ERR(data)) - return PTR_ERR(data); - - return sprintf(buf, "%d\n", data->temp[index] * 1000); -} - -static ssize_t show_temp_max(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - int index = to_sensor_dev_attr(devattr)->index; - struct max1668_data *data = max1668_update_device(dev); - - if (IS_ERR(data)) - return PTR_ERR(data); - - return sprintf(buf, "%d\n", data->temp_max[index] * 1000); -} - -static ssize_t show_temp_min(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - int index = to_sensor_dev_attr(devattr)->index; - struct max1668_data *data = max1668_update_device(dev); - - if (IS_ERR(data)) - return PTR_ERR(data); - - return sprintf(buf, "%d\n", data->temp_min[index] * 1000); -} - -static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, - char *buf) -{ - int index = to_sensor_dev_attr(attr)->index; - struct max1668_data *data = max1668_update_device(dev); - - if (IS_ERR(data)) - return PTR_ERR(data); - - return sprintf(buf, "%u\n", (data->alarms >> index) & 0x1); -} - -static ssize_t show_fault(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - int index = to_sensor_dev_attr(devattr)->index; - struct max1668_data *data = max1668_update_device(dev); - - if (IS_ERR(data)) - return PTR_ERR(data); - - return sprintf(buf, "%u\n", - (data->alarms & (1 << 12)) && data->temp[index] == 127); + return 0; } -static ssize_t set_temp_max(struct device *dev, - struct device_attribute *devattr, - const char *buf, size_t count) +static int max1668_write(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long val) { - int index = to_sensor_dev_attr(devattr)->index; struct max1668_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - long temp; - int ret; - - ret = kstrtol(buf, 10, &temp); - if (ret < 0) - return ret; + struct regmap *regmap = data->regmap; - mutex_lock(&data->update_lock); - data->temp_max[index] = clamp_val(temp/1000, -128, 127); - ret = i2c_smbus_write_byte_data(client, - MAX1668_REG_LIMH_WR(index), - data->temp_max[index]); - if (ret < 0) - count = ret; - mutex_unlock(&data->update_lock); + val = clamp_val(val / 1000, -128, 127); - return count; + switch (attr) { + case hwmon_temp_min: + return regmap_write(regmap, MAX1668_REG_LIML(channel), val); + case hwmon_temp_max: + return regmap_write(regmap, MAX1668_REG_LIMH(channel), val); + default: + return -EOPNOTSUPP; + } } -static ssize_t set_temp_min(struct device *dev, - struct device_attribute *devattr, - const char *buf, size_t count) +static umode_t max1668_is_visible(const void *_data, enum hwmon_sensor_types type, + u32 attr, int channel) { - int index = to_sensor_dev_attr(devattr)->index; - struct max1668_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - long temp; - int ret; - - ret = kstrtol(buf, 10, &temp); - if (ret < 0) - return ret; - - mutex_lock(&data->update_lock); - data->temp_min[index] = clamp_val(temp/1000, -128, 127); - ret = i2c_smbus_write_byte_data(client, - MAX1668_REG_LIML_WR(index), - data->temp_min[index]); - if (ret < 0) - count = ret; - mutex_unlock(&data->update_lock); - - return count; + const struct max1668_data *data = _data; + + if (channel >= data->channels) + return 0; + + switch (attr) { + case hwmon_temp_min: + case hwmon_temp_max: + return read_only ? 0444 : 0644; + case hwmon_temp_input: + case hwmon_temp_min_alarm: + case hwmon_temp_max_alarm: + return 0444; + case hwmon_temp_fault: + if (channel) + return 0444; + break; + default: + break; + } + return 0; } -static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0); -static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_temp_max, - set_temp_max, 0); -static SENSOR_DEVICE_ATTR(temp1_min, S_IRUGO, show_temp_min, - set_temp_min, 0); -static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1); -static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO, show_temp_max, - set_temp_max, 1); -static SENSOR_DEVICE_ATTR(temp2_min, S_IRUGO, show_temp_min, - set_temp_min, 1); -static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2); -static SENSOR_DEVICE_ATTR(temp3_max, S_IRUGO, show_temp_max, - set_temp_max, 2); -static SENSOR_DEVICE_ATTR(temp3_min, S_IRUGO, show_temp_min, - set_temp_min, 2); -static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp, NULL, 3); -static SENSOR_DEVICE_ATTR(temp4_max, S_IRUGO, show_temp_max, - set_temp_max, 3); -static SENSOR_DEVICE_ATTR(temp4_min, S_IRUGO, show_temp_min, - set_temp_min, 3); -static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, show_temp, NULL, 4); -static SENSOR_DEVICE_ATTR(temp5_max, S_IRUGO, show_temp_max, - set_temp_max, 4); -static SENSOR_DEVICE_ATTR(temp5_min, S_IRUGO, show_temp_min, - set_temp_min, 4); - -static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 14); -static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 13); -static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO, show_alarm, NULL, 7); -static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, 6); -static SENSOR_DEVICE_ATTR(temp3_min_alarm, S_IRUGO, show_alarm, NULL, 5); -static SENSOR_DEVICE_ATTR(temp3_max_alarm, S_IRUGO, show_alarm, NULL, 4); -static SENSOR_DEVICE_ATTR(temp4_min_alarm, S_IRUGO, show_alarm, NULL, 3); -static SENSOR_DEVICE_ATTR(temp4_max_alarm, S_IRUGO, show_alarm, NULL, 2); -static SENSOR_DEVICE_ATTR(temp5_min_alarm, S_IRUGO, show_alarm, NULL, 1); -static SENSOR_DEVICE_ATTR(temp5_max_alarm, S_IRUGO, show_alarm, NULL, 0); - -static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_fault, NULL, 1); -static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_fault, NULL, 2); -static SENSOR_DEVICE_ATTR(temp4_fault, S_IRUGO, show_fault, NULL, 3); -static SENSOR_DEVICE_ATTR(temp5_fault, S_IRUGO, show_fault, NULL, 4); - -/* Attributes common to MAX1668, MAX1989 and MAX1805 */ -static struct attribute *max1668_attribute_common[] = { - &sensor_dev_attr_temp1_max.dev_attr.attr, - &sensor_dev_attr_temp1_min.dev_attr.attr, - &sensor_dev_attr_temp1_input.dev_attr.attr, - &sensor_dev_attr_temp2_max.dev_attr.attr, - &sensor_dev_attr_temp2_min.dev_attr.attr, - &sensor_dev_attr_temp2_input.dev_attr.attr, - &sensor_dev_attr_temp3_max.dev_attr.attr, - &sensor_dev_attr_temp3_min.dev_attr.attr, - &sensor_dev_attr_temp3_input.dev_attr.attr, - - &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp1_min_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_min_alarm.dev_attr.attr, - &sensor_dev_attr_temp3_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp3_min_alarm.dev_attr.attr, - - &sensor_dev_attr_temp2_fault.dev_attr.attr, - &sensor_dev_attr_temp3_fault.dev_attr.attr, +static const struct hwmon_channel_info * const max1668_info[] = { + HWMON_CHANNEL_INFO(temp, + HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | + HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM, + HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | + HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM | + HWMON_T_FAULT, + HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | + HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM | + HWMON_T_FAULT, + HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | + HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM | + HWMON_T_FAULT, + HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | + HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM | + HWMON_T_FAULT), NULL }; -/* Attributes not present on MAX1805 */ -static struct attribute *max1668_attribute_unique[] = { - &sensor_dev_attr_temp4_max.dev_attr.attr, - &sensor_dev_attr_temp4_min.dev_attr.attr, - &sensor_dev_attr_temp4_input.dev_attr.attr, - &sensor_dev_attr_temp5_max.dev_attr.attr, - &sensor_dev_attr_temp5_min.dev_attr.attr, - &sensor_dev_attr_temp5_input.dev_attr.attr, - - &sensor_dev_attr_temp4_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp4_min_alarm.dev_attr.attr, - &sensor_dev_attr_temp5_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp5_min_alarm.dev_attr.attr, - - &sensor_dev_attr_temp4_fault.dev_attr.attr, - &sensor_dev_attr_temp5_fault.dev_attr.attr, - NULL +static const struct hwmon_ops max1668_hwmon_ops = { + .is_visible = max1668_is_visible, + .read = max1668_read, + .write = max1668_write, }; -static umode_t max1668_attribute_mode(struct kobject *kobj, - struct attribute *attr, int index) -{ - umode_t ret = S_IRUGO; - if (read_only) - return ret; - if (attr == &sensor_dev_attr_temp1_max.dev_attr.attr || - attr == &sensor_dev_attr_temp2_max.dev_attr.attr || - attr == &sensor_dev_attr_temp3_max.dev_attr.attr || - attr == &sensor_dev_attr_temp4_max.dev_attr.attr || - attr == &sensor_dev_attr_temp5_max.dev_attr.attr || - attr == &sensor_dev_attr_temp1_min.dev_attr.attr || - attr == &sensor_dev_attr_temp2_min.dev_attr.attr || - attr == &sensor_dev_attr_temp3_min.dev_attr.attr || - attr == &sensor_dev_attr_temp4_min.dev_attr.attr || - attr == &sensor_dev_attr_temp5_min.dev_attr.attr) - ret |= S_IWUSR; - return ret; -} - -static const struct attribute_group max1668_group_common = { - .attrs = max1668_attribute_common, - .is_visible = max1668_attribute_mode -}; - -static const struct attribute_group max1668_group_unique = { - .attrs = max1668_attribute_unique, - .is_visible = max1668_attribute_mode +static const struct hwmon_chip_info max1668_chip_info = { + .ops = &max1668_hwmon_ops, + .info = max1668_info, }; /* Return 0 if detection is successful, -ENODEV otherwise */ @@ -391,7 +224,47 @@ static int max1668_detect(struct i2c_client *client, return 0; } -static const struct i2c_device_id max1668_id[]; +/* regmap */ + +static int max1668_reg_read(void *context, unsigned int reg, unsigned int *val) +{ + int ret; + + ret = i2c_smbus_read_byte_data(context, reg); + if (ret < 0) + return ret; + + *val = ret; + return 0; +} + +static int max1668_reg_write(void *context, unsigned int reg, unsigned int val) +{ + return i2c_smbus_write_byte_data(context, reg + 11, val); +} + +static bool max1668_regmap_is_volatile(struct device *dev, unsigned int reg) +{ + return reg <= MAX1668_REG_STAT2; +} + +static bool max1668_regmap_is_writeable(struct device *dev, unsigned int reg) +{ + return reg > MAX1668_REG_STAT2 && reg <= MAX1668_REG_LIML(4); +} + +static const struct regmap_config max1668_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .cache_type = REGCACHE_MAPLE, + .volatile_reg = max1668_regmap_is_volatile, + .writeable_reg = max1668_regmap_is_writeable, +}; + +static const struct regmap_bus max1668_regmap_bus = { + .reg_write = max1668_reg_write, + .reg_read = max1668_reg_read, +}; static int max1668_probe(struct i2c_client *client) { @@ -407,24 +280,22 @@ static int max1668_probe(struct i2c_client *client) if (!data) return -ENOMEM; - data->client = client; - data->type = i2c_match_id(max1668_id, client)->driver_data; - mutex_init(&data->update_lock); + data->regmap = devm_regmap_init(dev, &max1668_regmap_bus, client, + &max1668_regmap_config); + if (IS_ERR(data->regmap)) + return PTR_ERR(data->regmap); - /* sysfs hooks */ - data->groups[0] = &max1668_group_common; - if (data->type == max1668 || data->type == max1989) - data->groups[1] = &max1668_group_unique; + data->channels = (uintptr_t)i2c_get_match_data(client); - hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, - data, data->groups); + hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, data, + &max1668_chip_info, NULL); return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id max1668_id[] = { - { "max1668", max1668 }, - { "max1805", max1805 }, - { "max1989", max1989 }, + { "max1668", 5 }, + { "max1805", 3 }, + { "max1989", 5 }, { } }; MODULE_DEVICE_TABLE(i2c, max1668_id); diff --git a/drivers/hwmon/max197.c b/drivers/hwmon/max197.c index bb30403f81ca..f0048ff37607 100644 --- a/drivers/hwmon/max197.c +++ b/drivers/hwmon/max197.c @@ -332,7 +332,7 @@ static struct platform_driver max197_driver = { .name = "max197", }, .probe = max197_probe, - .remove_new = max197_remove, + .remove = max197_remove, .id_table = max197_device_ids, }; module_platform_driver(max197_driver); diff --git a/drivers/hwmon/max31730.c b/drivers/hwmon/max31730.c index 7d237db6e57c..2f4b419b6c9e 100644 --- a/drivers/hwmon/max31730.c +++ b/drivers/hwmon/max31730.c @@ -345,7 +345,7 @@ max31730_probe(struct i2c_client *client) } static const struct i2c_device_id max31730_ids[] = { - { "max31730", 0, }, + { "max31730" }, { } }; MODULE_DEVICE_TABLE(i2c, max31730_ids); diff --git a/drivers/hwmon/max31790.c b/drivers/hwmon/max31790.c index 3dc95196b229..f56913327004 100644 --- a/drivers/hwmon/max31790.c +++ b/drivers/hwmon/max31790.c @@ -49,6 +49,9 @@ #define NR_CHANNEL 6 +#define PWM_INPUT_SCALE 255 +#define MAX31790_REG_PWMOUT_SCALE 511 + /* * Client data (each client gets its own) */ @@ -343,10 +346,13 @@ static int max31790_write_pwm(struct device *dev, u32 attr, int channel, err = -EINVAL; break; } + + val = DIV_ROUND_CLOSEST(val * MAX31790_REG_PWMOUT_SCALE, + PWM_INPUT_SCALE); data->valid = false; err = i2c_smbus_write_word_swapped(client, MAX31790_REG_PWMOUT(channel), - val << 8); + val << 7); break; case hwmon_pwm_enable: fan_config = data->fan_config[channel]; @@ -537,7 +543,7 @@ static int max31790_probe(struct i2c_client *client) } static const struct i2c_device_id max31790_id[] = { - { "max31790", 0 }, + { "max31790" }, { } }; MODULE_DEVICE_TABLE(i2c, max31790_id); diff --git a/drivers/hwmon/max31827.c b/drivers/hwmon/max31827.c index f8a13b30f100..48e8f8ba4d05 100644 --- a/drivers/hwmon/max31827.c +++ b/drivers/hwmon/max31827.c @@ -24,6 +24,7 @@ #define MAX31827_CONFIGURATION_1SHOT_MASK BIT(0) #define MAX31827_CONFIGURATION_CNV_RATE_MASK GENMASK(3, 1) +#define MAX31827_CONFIGURATION_PEC_EN_MASK BIT(4) #define MAX31827_CONFIGURATION_TIMEOUT_MASK BIT(5) #define MAX31827_CONFIGURATION_RESOLUTION_MASK GENMASK(7, 6) #define MAX31827_CONFIGURATION_ALRM_POL_MASK BIT(8) @@ -46,6 +47,11 @@ #define MAX31827_M_DGR_TO_16_BIT(x) (((x) << 4) / 1000) #define MAX31827_DEVICE_ENABLE(x) ((x) ? 0xA : 0x0) +/* + * The enum passed in the .data pointer of struct of_device_id must + * start with a value != 0 since that is a requirement for using + * device_get_match_data(). + */ enum chips { max31827 = 1, max31828, max31829 }; enum max31827_cnv { @@ -382,7 +388,8 @@ static int max31827_write(struct device *dev, enum hwmon_sensor_types type, } case hwmon_chip: - if (attr == hwmon_chip_update_interval) { + switch (attr) { + case hwmon_chip_update_interval: if (!st->enable) return -EINVAL; @@ -410,14 +417,18 @@ static int max31827_write(struct device *dev, enum hwmon_sensor_types type, return ret; st->update_interval = val; - } - break; + return 0; + case hwmon_chip_pec: + return regmap_update_bits(st->regmap, MAX31827_CONFIGURATION_REG, + MAX31827_CONFIGURATION_PEC_EN_MASK, + val ? MAX31827_CONFIGURATION_PEC_EN_MASK : 0); + default: + return -EOPNOTSUPP; + } default: return -EOPNOTSUPP; } - - return 0; } static ssize_t temp1_resolution_show(struct device *dev, @@ -583,7 +594,7 @@ static const struct hwmon_channel_info *max31827_info[] = { HWMON_T_MIN_HYST | HWMON_T_MIN_ALARM | HWMON_T_MAX | HWMON_T_MAX_HYST | HWMON_T_MAX_ALARM), - HWMON_CHANNEL_INFO(chip, HWMON_C_UPDATE_INTERVAL), + HWMON_CHANNEL_INFO(chip, HWMON_C_UPDATE_INTERVAL | HWMON_C_PEC), NULL, }; diff --git a/drivers/hwmon/max6620.c b/drivers/hwmon/max6620.c index 5d12fb9c9786..13201fb755c9 100644 --- a/drivers/hwmon/max6620.c +++ b/drivers/hwmon/max6620.c @@ -493,7 +493,7 @@ static int max6620_probe(struct i2c_client *client) } static const struct i2c_device_id max6620_id[] = { - { "max6620", 0 }, + { "max6620" }, { } }; MODULE_DEVICE_TABLE(i2c, max6620_id); diff --git a/drivers/hwmon/max6621.c b/drivers/hwmon/max6621.c index 05426cde0e36..a7066f3a0bb4 100644 --- a/drivers/hwmon/max6621.c +++ b/drivers/hwmon/max6621.c @@ -537,7 +537,7 @@ static int max6621_probe(struct i2c_client *client) } static const struct i2c_device_id max6621_id[] = { - { MAX6621_DRV_NAME, 0 }, + { MAX6621_DRV_NAME }, { } }; MODULE_DEVICE_TABLE(i2c, max6621_id); diff --git a/drivers/hwmon/max6639.c b/drivers/hwmon/max6639.c index aa7f21ab2395..32b4d54b2076 100644 --- a/drivers/hwmon/max6639.c +++ b/drivers/hwmon/max6639.c @@ -19,7 +19,8 @@ #include <linux/hwmon-sysfs.h> #include <linux/err.h> #include <linux/mutex.h> -#include <linux/platform_data/max6639.h> +#include <linux/regmap.h> +#include <linux/util_macros.h> /* Addresses to scan */ static const unsigned short normal_i2c[] = { 0x2c, 0x2e, 0x2f, I2C_CLIENT_END }; @@ -54,11 +55,17 @@ static const unsigned short normal_i2c[] = { 0x2c, 0x2e, 0x2f, I2C_CLIENT_END }; #define MAX6639_GCONFIG_PWM_FREQ_HI 0x08 #define MAX6639_FAN_CONFIG1_PWM 0x80 - +#define MAX6639_FAN_CONFIG3_FREQ_MASK 0x03 #define MAX6639_FAN_CONFIG3_THERM_FULL_SPEED 0x40 +#define MAX6639_NUM_CHANNELS 2 + static const int rpm_ranges[] = { 2000, 4000, 8000, 16000 }; +/* Supported PWM frequency */ +static const unsigned int freq_table[] = { 20, 33, 50, 100, 5000, 8333, 12500, + 25000 }; + #define FAN_FROM_REG(val, rpm_range) ((val) == 0 || (val) == 255 ? \ 0 : (rpm_ranges[rpm_range] * 30) / (val)) #define TEMP_LIMIT_TO_REG(val) clamp_val((val) / 1000, 0, 255) @@ -67,323 +74,445 @@ static const int rpm_ranges[] = { 2000, 4000, 8000, 16000 }; * Client data (each client gets its own) */ struct max6639_data { - struct i2c_client *client; + struct regmap *regmap; struct mutex update_lock; - bool valid; /* true if following fields are valid */ - unsigned long last_updated; /* In jiffies */ - - /* Register values sampled regularly */ - u16 temp[2]; /* Temperature, in 1/8 C, 0..255 C */ - bool temp_fault[2]; /* Detected temperature diode failure */ - u8 fan[2]; /* Register value: TACH count for fans >=30 */ - u8 status; /* Detected channel alarms and fan failures */ - - /* Register values only written to */ - u8 pwm[2]; /* Register value: Duty cycle 0..120 */ - u8 temp_therm[2]; /* THERM Temperature, 0..255 C (->_max) */ - u8 temp_alert[2]; /* ALERT Temperature, 0..255 C (->_crit) */ - u8 temp_ot[2]; /* OT Temperature, 0..255 C (->_emergency) */ /* Register values initialized only once */ - u8 ppr; /* Pulses per rotation 0..3 for 1..4 ppr */ - u8 rpm_range; /* Index in above rpm_ranges table */ + u8 ppr[MAX6639_NUM_CHANNELS]; /* Pulses per rotation 0..3 for 1..4 ppr */ + u8 rpm_range[MAX6639_NUM_CHANNELS]; /* Index in above rpm_ranges table */ /* Optional regulator for FAN supply */ struct regulator *reg; }; -static struct max6639_data *max6639_update_device(struct device *dev) +static int max6639_temp_read_input(struct device *dev, int channel, long *temp) { + u32 regs[2] = { MAX6639_REG_TEMP_EXT(channel), MAX6639_REG_TEMP(channel) }; struct max6639_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - struct max6639_data *ret = data; - int i; - int status_reg; + u8 regvals[2]; + int res; - mutex_lock(&data->update_lock); + res = regmap_multi_reg_read(data->regmap, regs, regvals, 2); + if (res < 0) + return res; - if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) { - int res; + *temp = ((regvals[0] >> 5) | (regvals[1] << 3)) * 125; - dev_dbg(&client->dev, "Starting max6639 update\n"); + return 0; +} - status_reg = i2c_smbus_read_byte_data(client, - MAX6639_REG_STATUS); - if (status_reg < 0) { - ret = ERR_PTR(status_reg); - goto abort; - } +static int max6639_temp_read_fault(struct device *dev, int channel, long *fault) +{ + struct max6639_data *data = dev_get_drvdata(dev); + unsigned int val; + int res; - data->status = status_reg; - - for (i = 0; i < 2; i++) { - res = i2c_smbus_read_byte_data(client, - MAX6639_REG_FAN_CNT(i)); - if (res < 0) { - ret = ERR_PTR(res); - goto abort; - } - data->fan[i] = res; - - res = i2c_smbus_read_byte_data(client, - MAX6639_REG_TEMP_EXT(i)); - if (res < 0) { - ret = ERR_PTR(res); - goto abort; - } - data->temp[i] = res >> 5; - data->temp_fault[i] = res & 0x01; - - res = i2c_smbus_read_byte_data(client, - MAX6639_REG_TEMP(i)); - if (res < 0) { - ret = ERR_PTR(res); - goto abort; - } - data->temp[i] |= res << 3; - } + res = regmap_read(data->regmap, MAX6639_REG_TEMP_EXT(channel), &val); + if (res < 0) + return res; - data->last_updated = jiffies; - data->valid = true; - } -abort: - mutex_unlock(&data->update_lock); + *fault = val & 1; - return ret; + return 0; } -static ssize_t temp_input_show(struct device *dev, - struct device_attribute *dev_attr, char *buf) +static int max6639_temp_read_max(struct device *dev, int channel, long *max) { - long temp; - struct max6639_data *data = max6639_update_device(dev); - struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr); + struct max6639_data *data = dev_get_drvdata(dev); + unsigned int val; + int res; + + res = regmap_read(data->regmap, MAX6639_REG_THERM_LIMIT(channel), &val); + if (res < 0) + return res; - if (IS_ERR(data)) - return PTR_ERR(data); + *max = (long)val * 1000; - temp = data->temp[attr->index] * 125; - return sprintf(buf, "%ld\n", temp); + return 0; } -static ssize_t temp_fault_show(struct device *dev, - struct device_attribute *dev_attr, char *buf) +static int max6639_temp_read_crit(struct device *dev, int channel, long *crit) { - struct max6639_data *data = max6639_update_device(dev); - struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr); + struct max6639_data *data = dev_get_drvdata(dev); + unsigned int val; + int res; + + res = regmap_read(data->regmap, MAX6639_REG_ALERT_LIMIT(channel), &val); + if (res < 0) + return res; - if (IS_ERR(data)) - return PTR_ERR(data); + *crit = (long)val * 1000; - return sprintf(buf, "%d\n", data->temp_fault[attr->index]); + return 0; } -static ssize_t temp_max_show(struct device *dev, - struct device_attribute *dev_attr, char *buf) +static int max6639_temp_read_emergency(struct device *dev, int channel, long *emerg) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr); struct max6639_data *data = dev_get_drvdata(dev); + unsigned int val; + int res; - return sprintf(buf, "%d\n", (data->temp_therm[attr->index] * 1000)); + res = regmap_read(data->regmap, MAX6639_REG_OT_LIMIT(channel), &val); + if (res < 0) + return res; + + *emerg = (long)val * 1000; + + return 0; } -static ssize_t temp_max_store(struct device *dev, - struct device_attribute *dev_attr, - const char *buf, size_t count) +static int max6639_get_status(struct device *dev, unsigned int *status) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr); struct max6639_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - unsigned long val; + unsigned int val; int res; - res = kstrtoul(buf, 10, &val); - if (res) + res = regmap_read(data->regmap, MAX6639_REG_STATUS, &val); + if (res < 0) return res; - mutex_lock(&data->update_lock); - data->temp_therm[attr->index] = TEMP_LIMIT_TO_REG(val); - i2c_smbus_write_byte_data(client, - MAX6639_REG_THERM_LIMIT(attr->index), - data->temp_therm[attr->index]); - mutex_unlock(&data->update_lock); - return count; + *status = val; + + return 0; } -static ssize_t temp_crit_show(struct device *dev, - struct device_attribute *dev_attr, char *buf) +static int max6639_temp_set_max(struct max6639_data *data, int channel, long val) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr); - struct max6639_data *data = dev_get_drvdata(dev); + int res; - return sprintf(buf, "%d\n", (data->temp_alert[attr->index] * 1000)); + res = regmap_write(data->regmap, MAX6639_REG_THERM_LIMIT(channel), + TEMP_LIMIT_TO_REG(val)); + return res; } -static ssize_t temp_crit_store(struct device *dev, - struct device_attribute *dev_attr, - const char *buf, size_t count) +static int max6639_temp_set_crit(struct max6639_data *data, int channel, long val) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr); - struct max6639_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - unsigned long val; int res; - res = kstrtoul(buf, 10, &val); - if (res) - return res; + res = regmap_write(data->regmap, MAX6639_REG_ALERT_LIMIT(channel), TEMP_LIMIT_TO_REG(val)); - mutex_lock(&data->update_lock); - data->temp_alert[attr->index] = TEMP_LIMIT_TO_REG(val); - i2c_smbus_write_byte_data(client, - MAX6639_REG_ALERT_LIMIT(attr->index), - data->temp_alert[attr->index]); - mutex_unlock(&data->update_lock); - return count; + return res; } -static ssize_t temp_emergency_show(struct device *dev, - struct device_attribute *dev_attr, - char *buf) +static int max6639_temp_set_emergency(struct max6639_data *data, int channel, long val) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr); - struct max6639_data *data = dev_get_drvdata(dev); + int res; - return sprintf(buf, "%d\n", (data->temp_ot[attr->index] * 1000)); + res = regmap_write(data->regmap, MAX6639_REG_OT_LIMIT(channel), TEMP_LIMIT_TO_REG(val)); + + return res; } -static ssize_t temp_emergency_store(struct device *dev, - struct device_attribute *dev_attr, - const char *buf, size_t count) +static int max6639_read_fan(struct device *dev, u32 attr, int channel, + long *fan_val) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr); struct max6639_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - unsigned long val; + unsigned int val; int res; - res = kstrtoul(buf, 10, &val); - if (res) - return res; + switch (attr) { + case hwmon_fan_input: + res = regmap_read(data->regmap, MAX6639_REG_FAN_CNT(channel), &val); + if (res < 0) + return res; + *fan_val = FAN_FROM_REG(val, data->rpm_range[channel]); + return 0; + case hwmon_fan_fault: + res = max6639_get_status(dev, &val); + if (res < 0) + return res; + *fan_val = !!(val & BIT(1 - channel)); + return 0; + case hwmon_fan_pulses: + *fan_val = data->ppr[channel]; + return 0; + default: + return -EOPNOTSUPP; + } +} - mutex_lock(&data->update_lock); - data->temp_ot[attr->index] = TEMP_LIMIT_TO_REG(val); - i2c_smbus_write_byte_data(client, - MAX6639_REG_OT_LIMIT(attr->index), - data->temp_ot[attr->index]); - mutex_unlock(&data->update_lock); - return count; +static int max6639_set_ppr(struct max6639_data *data, int channel, u8 ppr) +{ + /* Decrement the PPR value and shift left by 6 to match the register format */ + return regmap_write(data->regmap, MAX6639_REG_FAN_PPR(channel), ppr-- << 6); } -static ssize_t pwm_show(struct device *dev, struct device_attribute *dev_attr, - char *buf) +static int max6639_write_fan(struct device *dev, u32 attr, int channel, + long val) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr); struct max6639_data *data = dev_get_drvdata(dev); + int err; + + switch (attr) { + case hwmon_fan_pulses: + if (val <= 0 || val > 4) + return -EINVAL; - return sprintf(buf, "%d\n", data->pwm[attr->index] * 255 / 120); + mutex_lock(&data->update_lock); + /* Set Fan pulse per revolution */ + err = max6639_set_ppr(data, channel, val); + if (err < 0) { + mutex_unlock(&data->update_lock); + return err; + } + data->ppr[channel] = val; + + mutex_unlock(&data->update_lock); + return 0; + default: + return -EOPNOTSUPP; + } +} + +static umode_t max6639_fan_is_visible(const void *_data, u32 attr, int channel) +{ + switch (attr) { + case hwmon_fan_input: + case hwmon_fan_fault: + return 0444; + case hwmon_fan_pulses: + return 0644; + default: + return 0; + } } -static ssize_t pwm_store(struct device *dev, - struct device_attribute *dev_attr, const char *buf, - size_t count) +static int max6639_read_pwm(struct device *dev, u32 attr, int channel, + long *pwm_val) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr); + u32 regs[2] = { MAX6639_REG_FAN_CONFIG3(channel), MAX6639_REG_GCONFIG }; struct max6639_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - unsigned long val; + unsigned int val; + u8 regvals[2]; int res; + u8 i; + + switch (attr) { + case hwmon_pwm_input: + res = regmap_read(data->regmap, MAX6639_REG_TARGTDUTY(channel), &val); + if (res < 0) + return res; + *pwm_val = val * 255 / 120; + return 0; + case hwmon_pwm_freq: + res = regmap_multi_reg_read(data->regmap, regs, regvals, 2); + if (res < 0) + return res; + i = regvals[0] & MAX6639_FAN_CONFIG3_FREQ_MASK; + if (regvals[1] & MAX6639_GCONFIG_PWM_FREQ_HI) + i |= 0x4; + *pwm_val = freq_table[i]; + return 0; + default: + return -EOPNOTSUPP; + } +} - res = kstrtoul(buf, 10, &val); - if (res) - return res; +static int max6639_write_pwm(struct device *dev, u32 attr, int channel, + long val) +{ + struct max6639_data *data = dev_get_drvdata(dev); + int err; + u8 i; + + switch (attr) { + case hwmon_pwm_input: + if (val < 0 || val > 255) + return -EINVAL; + err = regmap_write(data->regmap, MAX6639_REG_TARGTDUTY(channel), + val * 120 / 255); + return err; + case hwmon_pwm_freq: + val = clamp_val(val, 0, 25000); + + i = find_closest(val, freq_table, ARRAY_SIZE(freq_table)); + + mutex_lock(&data->update_lock); + err = regmap_update_bits(data->regmap, MAX6639_REG_FAN_CONFIG3(channel), + MAX6639_FAN_CONFIG3_FREQ_MASK, i); + if (err < 0) { + mutex_unlock(&data->update_lock); + return err; + } - val = clamp_val(val, 0, 255); + if (i >> 2) + err = regmap_set_bits(data->regmap, MAX6639_REG_GCONFIG, + MAX6639_GCONFIG_PWM_FREQ_HI); + else + err = regmap_clear_bits(data->regmap, MAX6639_REG_GCONFIG, + MAX6639_GCONFIG_PWM_FREQ_HI); - mutex_lock(&data->update_lock); - data->pwm[attr->index] = (u8)(val * 120 / 255); - i2c_smbus_write_byte_data(client, - MAX6639_REG_TARGTDUTY(attr->index), - data->pwm[attr->index]); - mutex_unlock(&data->update_lock); - return count; + mutex_unlock(&data->update_lock); + return err; + default: + return -EOPNOTSUPP; + } } -static ssize_t fan_input_show(struct device *dev, - struct device_attribute *dev_attr, char *buf) +static umode_t max6639_pwm_is_visible(const void *_data, u32 attr, int channel) { - struct max6639_data *data = max6639_update_device(dev); - struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr); + switch (attr) { + case hwmon_pwm_input: + case hwmon_pwm_freq: + return 0644; + default: + return 0; + } +} - if (IS_ERR(data)) - return PTR_ERR(data); +static int max6639_read_temp(struct device *dev, u32 attr, int channel, + long *val) +{ + unsigned int status; + int res; - return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[attr->index], - data->rpm_range)); + switch (attr) { + case hwmon_temp_input: + res = max6639_temp_read_input(dev, channel, val); + return res; + case hwmon_temp_fault: + res = max6639_temp_read_fault(dev, channel, val); + return res; + case hwmon_temp_max: + res = max6639_temp_read_max(dev, channel, val); + return res; + case hwmon_temp_crit: + res = max6639_temp_read_crit(dev, channel, val); + return res; + case hwmon_temp_emergency: + res = max6639_temp_read_emergency(dev, channel, val); + return res; + case hwmon_temp_max_alarm: + res = max6639_get_status(dev, &status); + if (res < 0) + return res; + *val = !!(status & BIT(3 - channel)); + return 0; + case hwmon_temp_crit_alarm: + res = max6639_get_status(dev, &status); + if (res < 0) + return res; + *val = !!(status & BIT(7 - channel)); + return 0; + case hwmon_temp_emergency_alarm: + res = max6639_get_status(dev, &status); + if (res < 0) + return res; + *val = !!(status & BIT(5 - channel)); + return 0; + default: + return -EOPNOTSUPP; + } } -static ssize_t alarm_show(struct device *dev, - struct device_attribute *dev_attr, char *buf) +static int max6639_write_temp(struct device *dev, u32 attr, int channel, + long val) { - struct max6639_data *data = max6639_update_device(dev); - struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr); + struct max6639_data *data = dev_get_drvdata(dev); - if (IS_ERR(data)) - return PTR_ERR(data); + switch (attr) { + case hwmon_temp_max: + return max6639_temp_set_max(data, channel, val); + case hwmon_temp_crit: + return max6639_temp_set_crit(data, channel, val); + case hwmon_temp_emergency: + return max6639_temp_set_emergency(data, channel, val); + default: + return -EOPNOTSUPP; + } +} - return sprintf(buf, "%d\n", !!(data->status & (1 << attr->index))); +static umode_t max6639_temp_is_visible(const void *_data, u32 attr, int channel) +{ + switch (attr) { + case hwmon_temp_input: + case hwmon_temp_fault: + case hwmon_temp_max_alarm: + case hwmon_temp_crit_alarm: + case hwmon_temp_emergency_alarm: + return 0444; + case hwmon_temp_max: + case hwmon_temp_crit: + case hwmon_temp_emergency: + return 0644; + default: + return 0; + } +} + +static int max6639_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + switch (type) { + case hwmon_fan: + return max6639_read_fan(dev, attr, channel, val); + case hwmon_pwm: + return max6639_read_pwm(dev, attr, channel, val); + case hwmon_temp: + return max6639_read_temp(dev, attr, channel, val); + default: + return -EOPNOTSUPP; + } +} + +static int max6639_write(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long val) +{ + switch (type) { + case hwmon_fan: + return max6639_write_fan(dev, attr, channel, val); + case hwmon_pwm: + return max6639_write_pwm(dev, attr, channel, val); + case hwmon_temp: + return max6639_write_temp(dev, attr, channel, val); + default: + return -EOPNOTSUPP; + } } -static SENSOR_DEVICE_ATTR_RO(temp1_input, temp_input, 0); -static SENSOR_DEVICE_ATTR_RO(temp2_input, temp_input, 1); -static SENSOR_DEVICE_ATTR_RO(temp1_fault, temp_fault, 0); -static SENSOR_DEVICE_ATTR_RO(temp2_fault, temp_fault, 1); -static SENSOR_DEVICE_ATTR_RW(temp1_max, temp_max, 0); -static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1); -static SENSOR_DEVICE_ATTR_RW(temp1_crit, temp_crit, 0); -static SENSOR_DEVICE_ATTR_RW(temp2_crit, temp_crit, 1); -static SENSOR_DEVICE_ATTR_RW(temp1_emergency, temp_emergency, 0); -static SENSOR_DEVICE_ATTR_RW(temp2_emergency, temp_emergency, 1); -static SENSOR_DEVICE_ATTR_RW(pwm1, pwm, 0); -static SENSOR_DEVICE_ATTR_RW(pwm2, pwm, 1); -static SENSOR_DEVICE_ATTR_RO(fan1_input, fan_input, 0); -static SENSOR_DEVICE_ATTR_RO(fan2_input, fan_input, 1); -static SENSOR_DEVICE_ATTR_RO(fan1_fault, alarm, 1); -static SENSOR_DEVICE_ATTR_RO(fan2_fault, alarm, 0); -static SENSOR_DEVICE_ATTR_RO(temp1_max_alarm, alarm, 3); -static SENSOR_DEVICE_ATTR_RO(temp2_max_alarm, alarm, 2); -static SENSOR_DEVICE_ATTR_RO(temp1_crit_alarm, alarm, 7); -static SENSOR_DEVICE_ATTR_RO(temp2_crit_alarm, alarm, 6); -static SENSOR_DEVICE_ATTR_RO(temp1_emergency_alarm, alarm, 5); -static SENSOR_DEVICE_ATTR_RO(temp2_emergency_alarm, alarm, 4); - - -static struct attribute *max6639_attrs[] = { - &sensor_dev_attr_temp1_input.dev_attr.attr, - &sensor_dev_attr_temp2_input.dev_attr.attr, - &sensor_dev_attr_temp1_fault.dev_attr.attr, - &sensor_dev_attr_temp2_fault.dev_attr.attr, - &sensor_dev_attr_temp1_max.dev_attr.attr, - &sensor_dev_attr_temp2_max.dev_attr.attr, - &sensor_dev_attr_temp1_crit.dev_attr.attr, - &sensor_dev_attr_temp2_crit.dev_attr.attr, - &sensor_dev_attr_temp1_emergency.dev_attr.attr, - &sensor_dev_attr_temp2_emergency.dev_attr.attr, - &sensor_dev_attr_pwm1.dev_attr.attr, - &sensor_dev_attr_pwm2.dev_attr.attr, - &sensor_dev_attr_fan1_input.dev_attr.attr, - &sensor_dev_attr_fan2_input.dev_attr.attr, - &sensor_dev_attr_fan1_fault.dev_attr.attr, - &sensor_dev_attr_fan2_fault.dev_attr.attr, - &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp1_emergency_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_emergency_alarm.dev_attr.attr, +static umode_t max6639_is_visible(const void *data, + enum hwmon_sensor_types type, + u32 attr, int channel) +{ + switch (type) { + case hwmon_fan: + return max6639_fan_is_visible(data, attr, channel); + case hwmon_pwm: + return max6639_pwm_is_visible(data, attr, channel); + case hwmon_temp: + return max6639_temp_is_visible(data, attr, channel); + default: + return 0; + } +} + +static const struct hwmon_channel_info * const max6639_info[] = { + HWMON_CHANNEL_INFO(fan, + HWMON_F_INPUT | HWMON_F_FAULT | HWMON_F_PULSES, + HWMON_F_INPUT | HWMON_F_FAULT | HWMON_F_PULSES), + HWMON_CHANNEL_INFO(pwm, + HWMON_PWM_INPUT | HWMON_PWM_FREQ, + HWMON_PWM_INPUT | HWMON_PWM_FREQ), + HWMON_CHANNEL_INFO(temp, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_MAX | HWMON_T_MAX_ALARM | + HWMON_T_CRIT | HWMON_T_CRIT_ALARM | HWMON_T_EMERGENCY | + HWMON_T_EMERGENCY_ALARM, + HWMON_T_INPUT | HWMON_T_FAULT | HWMON_T_MAX | HWMON_T_MAX_ALARM | + HWMON_T_CRIT | HWMON_T_CRIT_ALARM | HWMON_T_EMERGENCY | + HWMON_T_EMERGENCY_ALARM), NULL }; -ATTRIBUTE_GROUPS(max6639); + +static const struct hwmon_ops max6639_hwmon_ops = { + .is_visible = max6639_is_visible, + .read = max6639_read, + .write = max6639_write, +}; + +static const struct hwmon_chip_info max6639_chip_info = { + .ops = &max6639_hwmon_ops, + .info = max6639_info, +}; /* * returns respective index in rpm_ranges table @@ -401,101 +530,125 @@ static int rpm_range_to_reg(int range) return 1; /* default: 4000 RPM */ } +static int max6639_probe_child_from_dt(struct i2c_client *client, + struct device_node *child, + struct max6639_data *data) + +{ + struct device *dev = &client->dev; + u32 i; + int err, val; + + err = of_property_read_u32(child, "reg", &i); + if (err) { + dev_err(dev, "missing reg property of %pOFn\n", child); + return err; + } + + if (i > 1) { + dev_err(dev, "Invalid fan index reg %d\n", i); + return -EINVAL; + } + + err = of_property_read_u32(child, "pulses-per-revolution", &val); + if (!err) { + if (val < 1 || val > 5) { + dev_err(dev, "invalid pulses-per-revolution %d of %pOFn\n", val, child); + return -EINVAL; + } + data->ppr[i] = val; + } + + err = of_property_read_u32(child, "max-rpm", &val); + if (!err) + data->rpm_range[i] = rpm_range_to_reg(val); + + return 0; +} + static int max6639_init_client(struct i2c_client *client, struct max6639_data *data) { - struct max6639_platform_data *max6639_info = - dev_get_platdata(&client->dev); - int i; - int rpm_range = 1; /* default: 4000 RPM */ - int err; + struct device *dev = &client->dev; + const struct device_node *np = dev->of_node; + struct device_node *child; + int i, err; /* Reset chip to default values, see below for GCONFIG setup */ - err = i2c_smbus_write_byte_data(client, MAX6639_REG_GCONFIG, - MAX6639_GCONFIG_POR); + err = regmap_write(data->regmap, MAX6639_REG_GCONFIG, MAX6639_GCONFIG_POR); if (err) - goto exit; + return err; /* Fans pulse per revolution is 2 by default */ - if (max6639_info && max6639_info->ppr > 0 && - max6639_info->ppr < 5) - data->ppr = max6639_info->ppr; - else - data->ppr = 2; - data->ppr -= 1; + data->ppr[0] = 2; + data->ppr[1] = 2; - if (max6639_info) - rpm_range = rpm_range_to_reg(max6639_info->rpm_range); - data->rpm_range = rpm_range; + /* default: 4000 RPM */ + data->rpm_range[0] = 1; + data->rpm_range[1] = 1; - for (i = 0; i < 2; i++) { + for_each_child_of_node(np, child) { + if (strcmp(child->name, "fan")) + continue; + + err = max6639_probe_child_from_dt(client, child, data); + if (err) { + of_node_put(child); + return err; + } + } + + for (i = 0; i < MAX6639_NUM_CHANNELS; i++) { + err = regmap_set_bits(data->regmap, MAX6639_REG_OUTPUT_MASK, BIT(1 - i)); + if (err) + return err; /* Set Fan pulse per revolution */ - err = i2c_smbus_write_byte_data(client, - MAX6639_REG_FAN_PPR(i), - data->ppr << 6); + err = max6639_set_ppr(data, i, data->ppr[i]); if (err) - goto exit; + return err; /* Fans config PWM, RPM */ - err = i2c_smbus_write_byte_data(client, - MAX6639_REG_FAN_CONFIG1(i), - MAX6639_FAN_CONFIG1_PWM | rpm_range); + err = regmap_write(data->regmap, MAX6639_REG_FAN_CONFIG1(i), + MAX6639_FAN_CONFIG1_PWM | data->rpm_range[i]); if (err) - goto exit; + return err; /* Fans PWM polarity high by default */ - if (max6639_info && max6639_info->pwm_polarity == 0) - err = i2c_smbus_write_byte_data(client, - MAX6639_REG_FAN_CONFIG2a(i), 0x00); - else - err = i2c_smbus_write_byte_data(client, - MAX6639_REG_FAN_CONFIG2a(i), 0x02); + err = regmap_write(data->regmap, MAX6639_REG_FAN_CONFIG2a(i), 0x00); if (err) - goto exit; + return err; /* * /THERM full speed enable, * PWM frequency 25kHz, see also GCONFIG below */ - err = i2c_smbus_write_byte_data(client, - MAX6639_REG_FAN_CONFIG3(i), - MAX6639_FAN_CONFIG3_THERM_FULL_SPEED | 0x03); + err = regmap_write(data->regmap, MAX6639_REG_FAN_CONFIG3(i), + MAX6639_FAN_CONFIG3_THERM_FULL_SPEED | 0x03); if (err) - goto exit; + return err; /* Max. temp. 80C/90C/100C */ - data->temp_therm[i] = 80; - data->temp_alert[i] = 90; - data->temp_ot[i] = 100; - err = i2c_smbus_write_byte_data(client, - MAX6639_REG_THERM_LIMIT(i), - data->temp_therm[i]); + err = regmap_write(data->regmap, MAX6639_REG_THERM_LIMIT(i), 80); if (err) - goto exit; - err = i2c_smbus_write_byte_data(client, - MAX6639_REG_ALERT_LIMIT(i), - data->temp_alert[i]); + return err; + err = regmap_write(data->regmap, MAX6639_REG_ALERT_LIMIT(i), 90); if (err) - goto exit; - err = i2c_smbus_write_byte_data(client, - MAX6639_REG_OT_LIMIT(i), data->temp_ot[i]); + return err; + err = regmap_write(data->regmap, MAX6639_REG_OT_LIMIT(i), 100); if (err) - goto exit; + return err; /* PWM 120/120 (i.e. 100%) */ - data->pwm[i] = 120; - err = i2c_smbus_write_byte_data(client, - MAX6639_REG_TARGTDUTY(i), data->pwm[i]); + err = regmap_write(data->regmap, MAX6639_REG_TARGTDUTY(i), 120); if (err) - goto exit; + return err; } /* Start monitoring */ - err = i2c_smbus_write_byte_data(client, MAX6639_REG_GCONFIG, - MAX6639_GCONFIG_DISABLE_TIMEOUT | MAX6639_GCONFIG_CH2_LOCAL | - MAX6639_GCONFIG_PWM_FREQ_HI); -exit: - return err; + return regmap_write(data->regmap, MAX6639_REG_GCONFIG, + MAX6639_GCONFIG_DISABLE_TIMEOUT | MAX6639_GCONFIG_CH2_LOCAL | + MAX6639_GCONFIG_PWM_FREQ_HI); + } /* Return 0 if detection is successful, -ENODEV otherwise */ @@ -524,6 +677,32 @@ static void max6639_regulator_disable(void *data) regulator_disable(data); } +static bool max6639_regmap_is_volatile(struct device *dev, unsigned int reg) +{ + switch (reg) { + case MAX6639_REG_TEMP(0): + case MAX6639_REG_TEMP_EXT(0): + case MAX6639_REG_TEMP(1): + case MAX6639_REG_TEMP_EXT(1): + case MAX6639_REG_STATUS: + case MAX6639_REG_FAN_CNT(0): + case MAX6639_REG_FAN_CNT(1): + case MAX6639_REG_TARGTDUTY(0): + case MAX6639_REG_TARGTDUTY(1): + return true; + default: + return false; + } +} + +static const struct regmap_config max6639_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = MAX6639_REG_DEVREV, + .cache_type = REGCACHE_MAPLE, + .volatile_reg = max6639_regmap_is_volatile, +}; + static int max6639_probe(struct i2c_client *client) { struct device *dev = &client->dev; @@ -535,7 +714,11 @@ static int max6639_probe(struct i2c_client *client) if (!data) return -ENOMEM; - data->client = client; + data->regmap = devm_regmap_init_i2c(client, &max6639_regmap_config); + if (IS_ERR(data->regmap)) + return dev_err_probe(dev, + PTR_ERR(data->regmap), + "regmap initialization failed\n"); data->reg = devm_regulator_get_optional(dev, "fan"); if (IS_ERR(data->reg)) { @@ -565,31 +748,26 @@ static int max6639_probe(struct i2c_client *client) if (err < 0) return err; - hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, - data, - max6639_groups); + hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, + data, &max6639_chip_info, + NULL); + return PTR_ERR_OR_ZERO(hwmon_dev); } static int max6639_suspend(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); struct max6639_data *data = dev_get_drvdata(dev); - int ret = i2c_smbus_read_byte_data(client, MAX6639_REG_GCONFIG); - - if (ret < 0) - return ret; if (data->reg) regulator_disable(data->reg); - return i2c_smbus_write_byte_data(client, - MAX6639_REG_GCONFIG, ret | MAX6639_GCONFIG_STANDBY); + return regmap_write_bits(data->regmap, MAX6639_REG_GCONFIG, MAX6639_GCONFIG_STANDBY, + MAX6639_GCONFIG_STANDBY); } static int max6639_resume(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); struct max6639_data *data = dev_get_drvdata(dev); int ret; @@ -601,16 +779,12 @@ static int max6639_resume(struct device *dev) } } - ret = i2c_smbus_read_byte_data(client, MAX6639_REG_GCONFIG); - if (ret < 0) - return ret; - - return i2c_smbus_write_byte_data(client, - MAX6639_REG_GCONFIG, ret & ~MAX6639_GCONFIG_STANDBY); + return regmap_write_bits(data->regmap, MAX6639_REG_GCONFIG, MAX6639_GCONFIG_STANDBY, + ~MAX6639_GCONFIG_STANDBY); } static const struct i2c_device_id max6639_id[] = { - {"max6639", 0}, + {"max6639"}, { } }; diff --git a/drivers/hwmon/max6642.c b/drivers/hwmon/max6642.c deleted file mode 100644 index 8b2e4d6101a2..000000000000 --- a/drivers/hwmon/max6642.c +++ /dev/null @@ -1,314 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Driver for +/-1 degree C, SMBus-Compatible Remote/Local Temperature Sensor - * with Overtemperature Alarm - * - * Copyright (C) 2011 AppearTV AS - * - * Derived from: - * - * Based on the max1619 driver. - * Copyright (C) 2003-2004 Oleksij Rempel <bug-track@fisher-privat.net> - * Jean Delvare <jdelvare@suse.de> - * - * The MAX6642 is a sensor chip made by Maxim. - * It reports up to two temperatures (its own plus up to - * one external one). Complete datasheet can be - * obtained from Maxim's website at: - * http://datasheets.maxim-ic.com/en/ds/MAX6642.pdf - */ - - -#include <linux/module.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/jiffies.h> -#include <linux/i2c.h> -#include <linux/hwmon.h> -#include <linux/hwmon-sysfs.h> -#include <linux/err.h> -#include <linux/mutex.h> -#include <linux/sysfs.h> - -static const unsigned short normal_i2c[] = { - 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, I2C_CLIENT_END }; - -/* - * The MAX6642 registers - */ - -#define MAX6642_REG_R_MAN_ID 0xFE -#define MAX6642_REG_R_CONFIG 0x03 -#define MAX6642_REG_W_CONFIG 0x09 -#define MAX6642_REG_R_STATUS 0x02 -#define MAX6642_REG_R_LOCAL_TEMP 0x00 -#define MAX6642_REG_R_LOCAL_TEMPL 0x11 -#define MAX6642_REG_R_LOCAL_HIGH 0x05 -#define MAX6642_REG_W_LOCAL_HIGH 0x0B -#define MAX6642_REG_R_REMOTE_TEMP 0x01 -#define MAX6642_REG_R_REMOTE_TEMPL 0x10 -#define MAX6642_REG_R_REMOTE_HIGH 0x07 -#define MAX6642_REG_W_REMOTE_HIGH 0x0D - -/* - * Conversions - */ - -static int temp_from_reg10(int val) -{ - return val * 250; -} - -static int temp_from_reg(int val) -{ - return val * 1000; -} - -static int temp_to_reg(int val) -{ - return val / 1000; -} - -/* - * Client data (each client gets its own) - */ - -struct max6642_data { - struct i2c_client *client; - struct mutex update_lock; - bool valid; /* zero until following fields are valid */ - unsigned long last_updated; /* in jiffies */ - - /* registers values */ - u16 temp_input[2]; /* local/remote */ - u16 temp_high[2]; /* local/remote */ - u8 alarms; -}; - -/* - * Real code - */ - -static void max6642_init_client(struct max6642_data *data, - struct i2c_client *client) -{ - u8 config; - - /* - * Start the conversions. - */ - config = i2c_smbus_read_byte_data(client, MAX6642_REG_R_CONFIG); - if (config & 0x40) - i2c_smbus_write_byte_data(client, MAX6642_REG_W_CONFIG, - config & 0xBF); /* run */ - - data->temp_high[0] = i2c_smbus_read_byte_data(client, - MAX6642_REG_R_LOCAL_HIGH); - data->temp_high[1] = i2c_smbus_read_byte_data(client, - MAX6642_REG_R_REMOTE_HIGH); -} - -/* Return 0 if detection is successful, -ENODEV otherwise */ -static int max6642_detect(struct i2c_client *client, - struct i2c_board_info *info) -{ - struct i2c_adapter *adapter = client->adapter; - u8 reg_config, reg_status, man_id; - - if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) - return -ENODEV; - - /* identification */ - man_id = i2c_smbus_read_byte_data(client, MAX6642_REG_R_MAN_ID); - if (man_id != 0x4D) - return -ENODEV; - - /* sanity check */ - if (i2c_smbus_read_byte_data(client, 0x04) != 0x4D - || i2c_smbus_read_byte_data(client, 0x06) != 0x4D - || i2c_smbus_read_byte_data(client, 0xff) != 0x4D) - return -ENODEV; - - /* - * We read the config and status register, the 4 lower bits in the - * config register should be zero and bit 5, 3, 1 and 0 should be - * zero in the status register. - */ - reg_config = i2c_smbus_read_byte_data(client, MAX6642_REG_R_CONFIG); - if ((reg_config & 0x0f) != 0x00) - return -ENODEV; - - /* in between, another round of sanity checks */ - if (i2c_smbus_read_byte_data(client, 0x04) != reg_config - || i2c_smbus_read_byte_data(client, 0x06) != reg_config - || i2c_smbus_read_byte_data(client, 0xff) != reg_config) - return -ENODEV; - - reg_status = i2c_smbus_read_byte_data(client, MAX6642_REG_R_STATUS); - if ((reg_status & 0x2b) != 0x00) - return -ENODEV; - - strscpy(info->type, "max6642", I2C_NAME_SIZE); - - return 0; -} - -static struct max6642_data *max6642_update_device(struct device *dev) -{ - struct max6642_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - u16 val, tmp; - - mutex_lock(&data->update_lock); - - if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { - dev_dbg(dev, "Updating max6642 data.\n"); - val = i2c_smbus_read_byte_data(client, - MAX6642_REG_R_LOCAL_TEMPL); - tmp = (val >> 6) & 3; - val = i2c_smbus_read_byte_data(client, - MAX6642_REG_R_LOCAL_TEMP); - val = (val << 2) | tmp; - data->temp_input[0] = val; - val = i2c_smbus_read_byte_data(client, - MAX6642_REG_R_REMOTE_TEMPL); - tmp = (val >> 6) & 3; - val = i2c_smbus_read_byte_data(client, - MAX6642_REG_R_REMOTE_TEMP); - val = (val << 2) | tmp; - data->temp_input[1] = val; - data->alarms = i2c_smbus_read_byte_data(client, - MAX6642_REG_R_STATUS); - - data->last_updated = jiffies; - data->valid = true; - } - - mutex_unlock(&data->update_lock); - - return data; -} - -/* - * Sysfs stuff - */ - -static ssize_t temp_max10_show(struct device *dev, - struct device_attribute *dev_attr, char *buf) -{ - struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr); - struct max6642_data *data = max6642_update_device(dev); - - return sprintf(buf, "%d\n", - temp_from_reg10(data->temp_input[attr->index])); -} - -static ssize_t temp_max_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct sensor_device_attribute_2 *attr2 = to_sensor_dev_attr_2(attr); - struct max6642_data *data = max6642_update_device(dev); - - return sprintf(buf, "%d\n", temp_from_reg(data->temp_high[attr2->nr])); -} - -static ssize_t temp_max_store(struct device *dev, - struct device_attribute *attr, const char *buf, - size_t count) -{ - struct sensor_device_attribute_2 *attr2 = to_sensor_dev_attr_2(attr); - struct max6642_data *data = dev_get_drvdata(dev); - unsigned long val; - int err; - - err = kstrtoul(buf, 10, &val); - if (err < 0) - return err; - - mutex_lock(&data->update_lock); - data->temp_high[attr2->nr] = clamp_val(temp_to_reg(val), 0, 255); - i2c_smbus_write_byte_data(data->client, attr2->index, - data->temp_high[attr2->nr]); - mutex_unlock(&data->update_lock); - return count; -} - -static ssize_t alarm_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - int bitnr = to_sensor_dev_attr(attr)->index; - struct max6642_data *data = max6642_update_device(dev); - return sprintf(buf, "%d\n", (data->alarms >> bitnr) & 1); -} - -static SENSOR_DEVICE_ATTR_RO(temp1_input, temp_max10, 0); -static SENSOR_DEVICE_ATTR_RO(temp2_input, temp_max10, 1); -static SENSOR_DEVICE_ATTR_2_RW(temp1_max, temp_max, 0, - MAX6642_REG_W_LOCAL_HIGH); -static SENSOR_DEVICE_ATTR_2_RW(temp2_max, temp_max, 1, - MAX6642_REG_W_REMOTE_HIGH); -static SENSOR_DEVICE_ATTR_RO(temp2_fault, alarm, 2); -static SENSOR_DEVICE_ATTR_RO(temp1_max_alarm, alarm, 6); -static SENSOR_DEVICE_ATTR_RO(temp2_max_alarm, alarm, 4); - -static struct attribute *max6642_attrs[] = { - &sensor_dev_attr_temp1_input.dev_attr.attr, - &sensor_dev_attr_temp2_input.dev_attr.attr, - &sensor_dev_attr_temp1_max.dev_attr.attr, - &sensor_dev_attr_temp2_max.dev_attr.attr, - - &sensor_dev_attr_temp2_fault.dev_attr.attr, - &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, - NULL -}; -ATTRIBUTE_GROUPS(max6642); - -static int max6642_probe(struct i2c_client *client) -{ - struct device *dev = &client->dev; - struct max6642_data *data; - struct device *hwmon_dev; - - data = devm_kzalloc(dev, sizeof(struct max6642_data), GFP_KERNEL); - if (!data) - return -ENOMEM; - - data->client = client; - mutex_init(&data->update_lock); - - /* Initialize the MAX6642 chip */ - max6642_init_client(data, client); - - hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev, - client->name, data, - max6642_groups); - return PTR_ERR_OR_ZERO(hwmon_dev); -} - -/* - * Driver data (common to all clients) - */ - -static const struct i2c_device_id max6642_id[] = { - { "max6642", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, max6642_id); - -static struct i2c_driver max6642_driver = { - .class = I2C_CLASS_HWMON, - .driver = { - .name = "max6642", - }, - .probe = max6642_probe, - .id_table = max6642_id, - .detect = max6642_detect, - .address_list = normal_i2c, -}; - -module_i2c_driver(max6642_driver); - -MODULE_AUTHOR("Per Dalen <per.dalen@appeartv.com>"); -MODULE_DESCRIPTION("MAX6642 sensor driver"); -MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/max6697.c b/drivers/hwmon/max6697.c index d161ba0e7813..0735a1d2c20f 100644 --- a/drivers/hwmon/max6697.c +++ b/drivers/hwmon/max6697.c @@ -6,18 +6,17 @@ * Copyright (c) 2011 David George <david.george@ska.ac.za> */ -#include <linux/module.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/jiffies.h> -#include <linux/i2c.h> -#include <linux/hwmon.h> -#include <linux/hwmon-sysfs.h> +#include <linux/bitfield.h> +#include <linux/bits.h> #include <linux/err.h> +#include <linux/hwmon.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/module.h> #include <linux/mutex.h> #include <linux/of.h> - -#include <linux/platform_data/max6697.h> +#include <linux/regmap.h> +#include <linux/slab.h> enum chips { max6581, max6602, max6622, max6636, max6689, max6693, max6694, max6697, max6698, max6699 }; @@ -33,21 +32,36 @@ static const u8 MAX6697_REG_MAX[] = { static const u8 MAX6697_REG_CRIT[] = { 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27 }; +#define MAX6697_REG_MIN 0x30 /* - * Map device tree / platform data register bit map to chip bit map. + * Map device tree / internal register bit map to chip bit map. * Applies to alert register and over-temperature register. */ + +#define MAX6697_EXTERNAL_MASK_DT GENMASK(7, 1) +#define MAX6697_LOCAL_MASK_DT BIT(0) +#define MAX6697_EXTERNAL_MASK_CHIP GENMASK(6, 0) +#define MAX6697_LOCAL_MASK_CHIP BIT(7) + +/* alert - local channel is in bit 6 */ #define MAX6697_ALERT_MAP_BITS(reg) ((((reg) & 0x7e) >> 1) | \ (((reg) & 0x01) << 6) | ((reg) & 0x80)) -#define MAX6697_OVERT_MAP_BITS(reg) (((reg) >> 1) | (((reg) & 0x01) << 7)) -#define MAX6697_REG_STAT(n) (0x44 + (n)) +/* over-temperature - local channel is in bit 7 */ +#define MAX6697_OVERT_MAP_BITS(reg) \ + (FIELD_PREP(MAX6697_EXTERNAL_MASK_CHIP, FIELD_GET(MAX6697_EXTERNAL_MASK_DT, reg)) | \ + FIELD_PREP(MAX6697_LOCAL_MASK_CHIP, FIELD_GET(MAX6697_LOCAL_MASK_DT, reg))) + +#define MAX6697_REG_STAT_ALARM 0x44 +#define MAX6697_REG_STAT_CRIT 0x45 +#define MAX6697_REG_STAT_FAULT 0x46 +#define MAX6697_REG_STAT_MIN_ALARM 0x47 #define MAX6697_REG_CONFIG 0x41 -#define MAX6581_CONF_EXTENDED (1 << 1) -#define MAX6693_CONF_BETA (1 << 2) -#define MAX6697_CONF_RESISTANCE (1 << 3) -#define MAX6697_CONF_TIMEOUT (1 << 5) +#define MAX6581_CONF_EXTENDED BIT(1) +#define MAX6693_CONF_BETA BIT(2) +#define MAX6697_CONF_RESISTANCE BIT(3) +#define MAX6697_CONF_TIMEOUT BIT(5) #define MAX6697_REG_ALERT_MASK 0x42 #define MAX6697_REG_OVERT_MASK 0x43 @@ -67,24 +81,18 @@ struct max6697_chip_data { u32 have_crit; u32 have_fault; u8 valid_conf; - const u8 *alarm_map; }; struct max6697_data { - struct i2c_client *client; + struct regmap *regmap; enum chips type; const struct max6697_chip_data *chip; - int update_interval; /* in milli-seconds */ int temp_offset; /* in degrees C */ struct mutex update_lock; - unsigned long last_updated; /* In jiffies */ - bool valid; /* true if following fields are valid */ - /* 1x local and up to 7x remote */ - u8 temp[8][4]; /* [nr][0]=temp [1]=ext [2]=max [3]=crit */ #define MAX6697_TEMP_INPUT 0 #define MAX6697_TEMP_EXT 1 #define MAX6697_TEMP_MAX 2 @@ -92,11 +100,6 @@ struct max6697_data { u32 alarms; }; -/* Diode fault status bits on MAX6581 are right shifted by one bit */ -static const u8 max6581_alarm_map[] = { - 0, 0, 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, - 16, 17, 18, 19, 20, 21, 22, 23 }; - static const struct max6697_chip_data max6697_chip_data[] = { [max6581] = { .channels = 8, @@ -104,7 +107,6 @@ static const struct max6697_chip_data max6697_chip_data[] = { .have_ext = 0x7f, .have_fault = 0xfe, .valid_conf = MAX6581_CONF_EXTENDED | MAX6697_CONF_TIMEOUT, - .alarm_map = max6581_alarm_map, }, [max6602] = { .channels = 5, @@ -173,549 +175,398 @@ static const struct max6697_chip_data max6697_chip_data[] = { }, }; -static inline int max6581_offset_to_millic(int val) +static int max6697_alarm_channel_map(int channel) { - return sign_extend32(val, 7) * 250; + switch (channel) { + case 0: + return 6; + case 7: + return 7; + default: + return channel - 1; + } } -static struct max6697_data *max6697_update_device(struct device *dev) +static int max6697_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) { + unsigned int offset_regs[2] = { MAX6581_REG_OFFSET_SELECT, MAX6581_REG_OFFSET }; + unsigned int temp_regs[2] = { MAX6697_REG_TEMP[channel], + MAX6697_REG_TEMP_EXT[channel] }; struct max6697_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - struct max6697_data *ret = data; - int val; - int i; - u32 alarms; + struct regmap *regmap = data->regmap; + u8 regdata[2] = { }; + u32 regval; + int ret; - mutex_lock(&data->update_lock); - - if (data->valid && - !time_after(jiffies, data->last_updated - + msecs_to_jiffies(data->update_interval))) - goto abort; - - for (i = 0; i < data->chip->channels; i++) { - if (data->chip->have_ext & (1 << i)) { - val = i2c_smbus_read_byte_data(client, - MAX6697_REG_TEMP_EXT[i]); - if (unlikely(val < 0)) { - ret = ERR_PTR(val); - goto abort; - } - data->temp[i][MAX6697_TEMP_EXT] = val; - } + switch (attr) { + case hwmon_temp_input: + ret = regmap_multi_reg_read(regmap, temp_regs, regdata, + data->chip->have_ext & BIT(channel) ? 2 : 1); + if (ret) + return ret; + *val = (((regdata[0] - data->temp_offset) << 3) | (regdata[1] >> 5)) * 125; + break; + case hwmon_temp_max: + ret = regmap_read(regmap, MAX6697_REG_MAX[channel], ®val); + if (ret) + return ret; + *val = ((int)regval - data->temp_offset) * 1000; + break; + case hwmon_temp_crit: + ret = regmap_read(regmap, MAX6697_REG_CRIT[channel], ®val); + if (ret) + return ret; + *val = ((int)regval - data->temp_offset) * 1000; + break; + case hwmon_temp_min: + ret = regmap_read(regmap, MAX6697_REG_MIN, ®val); + if (ret) + return ret; + *val = ((int)regval - data->temp_offset) * 1000; + break; + case hwmon_temp_offset: + ret = regmap_multi_reg_read(regmap, offset_regs, regdata, 2); + if (ret) + return ret; - val = i2c_smbus_read_byte_data(client, MAX6697_REG_TEMP[i]); - if (unlikely(val < 0)) { - ret = ERR_PTR(val); - goto abort; - } - data->temp[i][MAX6697_TEMP_INPUT] = val; + if (!(regdata[0] & BIT(channel - 1))) + regdata[1] = 0; - val = i2c_smbus_read_byte_data(client, MAX6697_REG_MAX[i]); - if (unlikely(val < 0)) { - ret = ERR_PTR(val); - goto abort; - } - data->temp[i][MAX6697_TEMP_MAX] = val; - - if (data->chip->have_crit & (1 << i)) { - val = i2c_smbus_read_byte_data(client, - MAX6697_REG_CRIT[i]); - if (unlikely(val < 0)) { - ret = ERR_PTR(val); - goto abort; - } - data->temp[i][MAX6697_TEMP_CRIT] = val; - } - } - - alarms = 0; - for (i = 0; i < 3; i++) { - val = i2c_smbus_read_byte_data(client, MAX6697_REG_STAT(i)); - if (unlikely(val < 0)) { - ret = ERR_PTR(val); - goto abort; - } - alarms = (alarms << 8) | val; + *val = sign_extend32(regdata[1], 7) * 250; + break; + case hwmon_temp_fault: + ret = regmap_read(regmap, MAX6697_REG_STAT_FAULT, ®val); + if (ret) + return ret; + if (data->type == max6581) + *val = !!(regval & BIT(channel - 1)); + else + *val = !!(regval & BIT(channel)); + break; + case hwmon_temp_crit_alarm: + ret = regmap_read(regmap, MAX6697_REG_STAT_CRIT, ®val); + if (ret) + return ret; + /* + * In the MAX6581 datasheet revision 0 to 3, the local channel + * overtemperature status is reported in bit 6 of register 0x45, + * and the overtemperature status for remote channel 7 is + * reported in bit 7. In Revision 4 and later, the local channel + * overtemperature status is reported in bit 7, and the remote + * channel 7 overtemperature status is reported in bit 6. A real + * chip was found to match the functionality documented in + * Revision 4 and later. + */ + *val = !!(regval & BIT(channel ? channel - 1 : 7)); + break; + case hwmon_temp_max_alarm: + ret = regmap_read(regmap, MAX6697_REG_STAT_ALARM, ®val); + if (ret) + return ret; + *val = !!(regval & BIT(max6697_alarm_channel_map(channel))); + break; + case hwmon_temp_min_alarm: + ret = regmap_read(regmap, MAX6697_REG_STAT_MIN_ALARM, ®val); + if (ret) + return ret; + *val = !!(regval & BIT(max6697_alarm_channel_map(channel))); + break; + default: + return -EOPNOTSUPP; } - data->alarms = alarms; - data->last_updated = jiffies; - data->valid = true; -abort: - mutex_unlock(&data->update_lock); - - return ret; -} - -static ssize_t temp_input_show(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - int index = to_sensor_dev_attr(devattr)->index; - struct max6697_data *data = max6697_update_device(dev); - int temp; - - if (IS_ERR(data)) - return PTR_ERR(data); - - temp = (data->temp[index][MAX6697_TEMP_INPUT] - data->temp_offset) << 3; - temp |= data->temp[index][MAX6697_TEMP_EXT] >> 5; - - return sprintf(buf, "%d\n", temp * 125); -} - -static ssize_t temp_show(struct device *dev, struct device_attribute *devattr, - char *buf) -{ - int nr = to_sensor_dev_attr_2(devattr)->nr; - int index = to_sensor_dev_attr_2(devattr)->index; - struct max6697_data *data = max6697_update_device(dev); - int temp; - - if (IS_ERR(data)) - return PTR_ERR(data); - - temp = data->temp[nr][index]; - temp -= data->temp_offset; - - return sprintf(buf, "%d\n", temp * 1000); -} - -static ssize_t alarm_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - int index = to_sensor_dev_attr(attr)->index; - struct max6697_data *data = max6697_update_device(dev); - - if (IS_ERR(data)) - return PTR_ERR(data); - - if (data->chip->alarm_map) - index = data->chip->alarm_map[index]; - - return sprintf(buf, "%u\n", (data->alarms >> index) & 0x1); + return 0; } -static ssize_t temp_store(struct device *dev, - struct device_attribute *devattr, const char *buf, - size_t count) +static int max6697_write(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long val) { - int nr = to_sensor_dev_attr_2(devattr)->nr; - int index = to_sensor_dev_attr_2(devattr)->index; struct max6697_data *data = dev_get_drvdata(dev); - long temp; + struct regmap *regmap = data->regmap; int ret; - ret = kstrtol(buf, 10, &temp); - if (ret < 0) - return ret; - - mutex_lock(&data->update_lock); - temp = DIV_ROUND_CLOSEST(temp, 1000) + data->temp_offset; - temp = clamp_val(temp, 0, data->type == max6581 ? 255 : 127); - data->temp[nr][index] = temp; - ret = i2c_smbus_write_byte_data(data->client, - index == 2 ? MAX6697_REG_MAX[nr] - : MAX6697_REG_CRIT[nr], - temp); - mutex_unlock(&data->update_lock); - - return ret < 0 ? ret : count; -} - -static ssize_t offset_store(struct device *dev, struct device_attribute *devattr, const char *buf, - size_t count) -{ - int val, ret, index, select; - struct max6697_data *data; - bool channel_enabled; - long temp; - - index = to_sensor_dev_attr(devattr)->index; - data = dev_get_drvdata(dev); - ret = kstrtol(buf, 10, &temp); - if (ret < 0) + switch (attr) { + case hwmon_temp_max: + val = clamp_val(val, -1000000, 1000000); /* prevent underflow */ + val = DIV_ROUND_CLOSEST(val, 1000) + data->temp_offset; + val = clamp_val(val, 0, data->type == max6581 ? 255 : 127); + return regmap_write(regmap, MAX6697_REG_MAX[channel], val); + case hwmon_temp_crit: + val = clamp_val(val, -1000000, 1000000); /* prevent underflow */ + val = DIV_ROUND_CLOSEST(val, 1000) + data->temp_offset; + val = clamp_val(val, 0, data->type == max6581 ? 255 : 127); + return regmap_write(regmap, MAX6697_REG_CRIT[channel], val); + case hwmon_temp_min: + val = clamp_val(val, -1000000, 1000000); /* prevent underflow */ + val = DIV_ROUND_CLOSEST(val, 1000) + data->temp_offset; + val = clamp_val(val, 0, 255); + return regmap_write(regmap, MAX6697_REG_MIN, val); + case hwmon_temp_offset: + mutex_lock(&data->update_lock); + val = clamp_val(val, MAX6581_OFFSET_MIN, MAX6581_OFFSET_MAX); + val = DIV_ROUND_CLOSEST(val, 250); + if (!val) { /* disable this (and only this) channel */ + ret = regmap_clear_bits(regmap, MAX6581_REG_OFFSET_SELECT, + BIT(channel - 1)); + } else { + /* enable channel and update offset */ + ret = regmap_set_bits(regmap, MAX6581_REG_OFFSET_SELECT, + BIT(channel - 1)); + if (ret) + goto unlock; + ret = regmap_write(regmap, MAX6581_REG_OFFSET, val); + } +unlock: + mutex_unlock(&data->update_lock); return ret; - - mutex_lock(&data->update_lock); - select = i2c_smbus_read_byte_data(data->client, MAX6581_REG_OFFSET_SELECT); - if (select < 0) { - ret = select; - goto abort; - } - channel_enabled = (select & (1 << (index - 1))); - temp = clamp_val(temp, MAX6581_OFFSET_MIN, MAX6581_OFFSET_MAX); - val = DIV_ROUND_CLOSEST(temp, 250); - /* disable the offset for channel if the new offset is 0 */ - if (val == 0) { - if (channel_enabled) - ret = i2c_smbus_write_byte_data(data->client, MAX6581_REG_OFFSET_SELECT, - select & ~(1 << (index - 1))); - ret = ret < 0 ? ret : count; - goto abort; + default: + return -EOPNOTSUPP; } - if (!channel_enabled) { - ret = i2c_smbus_write_byte_data(data->client, MAX6581_REG_OFFSET_SELECT, - select | (1 << (index - 1))); - if (ret < 0) - goto abort; - } - ret = i2c_smbus_write_byte_data(data->client, MAX6581_REG_OFFSET, val); - ret = ret < 0 ? ret : count; - -abort: - mutex_unlock(&data->update_lock); - return ret; } -static ssize_t offset_show(struct device *dev, struct device_attribute *devattr, char *buf) +static umode_t max6697_is_visible(const void *_data, enum hwmon_sensor_types type, + u32 attr, int channel) { - struct max6697_data *data; - int select, ret, index; - - index = to_sensor_dev_attr(devattr)->index; - data = dev_get_drvdata(dev); - mutex_lock(&data->update_lock); - select = i2c_smbus_read_byte_data(data->client, MAX6581_REG_OFFSET_SELECT); - if (select < 0) - ret = select; - else if (select & (1 << (index - 1))) - ret = i2c_smbus_read_byte_data(data->client, MAX6581_REG_OFFSET); - else - ret = 0; - mutex_unlock(&data->update_lock); - return ret < 0 ? ret : sprintf(buf, "%d\n", max6581_offset_to_millic(ret)); -} - -static SENSOR_DEVICE_ATTR_RO(temp1_input, temp_input, 0); -static SENSOR_DEVICE_ATTR_2_RW(temp1_max, temp, 0, MAX6697_TEMP_MAX); -static SENSOR_DEVICE_ATTR_2_RW(temp1_crit, temp, 0, MAX6697_TEMP_CRIT); - -static SENSOR_DEVICE_ATTR_RO(temp2_input, temp_input, 1); -static SENSOR_DEVICE_ATTR_2_RW(temp2_max, temp, 1, MAX6697_TEMP_MAX); -static SENSOR_DEVICE_ATTR_2_RW(temp2_crit, temp, 1, MAX6697_TEMP_CRIT); - -static SENSOR_DEVICE_ATTR_RO(temp3_input, temp_input, 2); -static SENSOR_DEVICE_ATTR_2_RW(temp3_max, temp, 2, MAX6697_TEMP_MAX); -static SENSOR_DEVICE_ATTR_2_RW(temp3_crit, temp, 2, MAX6697_TEMP_CRIT); - -static SENSOR_DEVICE_ATTR_RO(temp4_input, temp_input, 3); -static SENSOR_DEVICE_ATTR_2_RW(temp4_max, temp, 3, MAX6697_TEMP_MAX); -static SENSOR_DEVICE_ATTR_2_RW(temp4_crit, temp, 3, MAX6697_TEMP_CRIT); - -static SENSOR_DEVICE_ATTR_RO(temp5_input, temp_input, 4); -static SENSOR_DEVICE_ATTR_2_RW(temp5_max, temp, 4, MAX6697_TEMP_MAX); -static SENSOR_DEVICE_ATTR_2_RW(temp5_crit, temp, 4, MAX6697_TEMP_CRIT); - -static SENSOR_DEVICE_ATTR_RO(temp6_input, temp_input, 5); -static SENSOR_DEVICE_ATTR_2_RW(temp6_max, temp, 5, MAX6697_TEMP_MAX); -static SENSOR_DEVICE_ATTR_2_RW(temp6_crit, temp, 5, MAX6697_TEMP_CRIT); - -static SENSOR_DEVICE_ATTR_RO(temp7_input, temp_input, 6); -static SENSOR_DEVICE_ATTR_2_RW(temp7_max, temp, 6, MAX6697_TEMP_MAX); -static SENSOR_DEVICE_ATTR_2_RW(temp7_crit, temp, 6, MAX6697_TEMP_CRIT); - -static SENSOR_DEVICE_ATTR_RO(temp8_input, temp_input, 7); -static SENSOR_DEVICE_ATTR_2_RW(temp8_max, temp, 7, MAX6697_TEMP_MAX); -static SENSOR_DEVICE_ATTR_2_RW(temp8_crit, temp, 7, MAX6697_TEMP_CRIT); - -static SENSOR_DEVICE_ATTR_RO(temp1_max_alarm, alarm, 22); -static SENSOR_DEVICE_ATTR_RO(temp2_max_alarm, alarm, 16); -static SENSOR_DEVICE_ATTR_RO(temp3_max_alarm, alarm, 17); -static SENSOR_DEVICE_ATTR_RO(temp4_max_alarm, alarm, 18); -static SENSOR_DEVICE_ATTR_RO(temp5_max_alarm, alarm, 19); -static SENSOR_DEVICE_ATTR_RO(temp6_max_alarm, alarm, 20); -static SENSOR_DEVICE_ATTR_RO(temp7_max_alarm, alarm, 21); -static SENSOR_DEVICE_ATTR_RO(temp8_max_alarm, alarm, 23); - -static SENSOR_DEVICE_ATTR_RO(temp1_crit_alarm, alarm, 14); -static SENSOR_DEVICE_ATTR_RO(temp2_crit_alarm, alarm, 8); -static SENSOR_DEVICE_ATTR_RO(temp3_crit_alarm, alarm, 9); -static SENSOR_DEVICE_ATTR_RO(temp4_crit_alarm, alarm, 10); -static SENSOR_DEVICE_ATTR_RO(temp5_crit_alarm, alarm, 11); -static SENSOR_DEVICE_ATTR_RO(temp6_crit_alarm, alarm, 12); -static SENSOR_DEVICE_ATTR_RO(temp7_crit_alarm, alarm, 13); -static SENSOR_DEVICE_ATTR_RO(temp8_crit_alarm, alarm, 15); - -static SENSOR_DEVICE_ATTR_RO(temp2_fault, alarm, 1); -static SENSOR_DEVICE_ATTR_RO(temp3_fault, alarm, 2); -static SENSOR_DEVICE_ATTR_RO(temp4_fault, alarm, 3); -static SENSOR_DEVICE_ATTR_RO(temp5_fault, alarm, 4); -static SENSOR_DEVICE_ATTR_RO(temp6_fault, alarm, 5); -static SENSOR_DEVICE_ATTR_RO(temp7_fault, alarm, 6); -static SENSOR_DEVICE_ATTR_RO(temp8_fault, alarm, 7); - -/* There is no offset for local temperature so starting from temp2 */ -static SENSOR_DEVICE_ATTR_RW(temp2_offset, offset, 1); -static SENSOR_DEVICE_ATTR_RW(temp3_offset, offset, 2); -static SENSOR_DEVICE_ATTR_RW(temp4_offset, offset, 3); -static SENSOR_DEVICE_ATTR_RW(temp5_offset, offset, 4); -static SENSOR_DEVICE_ATTR_RW(temp6_offset, offset, 5); -static SENSOR_DEVICE_ATTR_RW(temp7_offset, offset, 6); -static SENSOR_DEVICE_ATTR_RW(temp8_offset, offset, 7); - -static DEVICE_ATTR(dummy, 0, NULL, NULL); - -static umode_t max6697_is_visible(struct kobject *kobj, struct attribute *attr, - int index) -{ - struct device *dev = kobj_to_dev(kobj); - struct max6697_data *data = dev_get_drvdata(dev); + const struct max6697_data *data = _data; const struct max6697_chip_data *chip = data->chip; - int channel = index / 7; /* channel number */ - int nr = index % 7; /* attribute index within channel */ if (channel >= chip->channels) return 0; - if ((nr == 3 || nr == 4) && !(chip->have_crit & (1 << channel))) - return 0; - if (nr == 5 && !(chip->have_fault & (1 << channel))) - return 0; - /* offset reg is only supported on max6581 remote channels */ - if (nr == 6) - if (data->type != max6581 || channel == 0) - return 0; - - return attr->mode; + switch (attr) { + case hwmon_temp_max: + return 0644; + case hwmon_temp_input: + case hwmon_temp_max_alarm: + return 0444; + case hwmon_temp_min: + if (data->type == max6581) + return channel ? 0444 : 0644; + break; + case hwmon_temp_min_alarm: + if (data->type == max6581) + return 0444; + break; + case hwmon_temp_crit: + if (chip->have_crit & BIT(channel)) + return 0644; + break; + case hwmon_temp_crit_alarm: + if (chip->have_crit & BIT(channel)) + return 0444; + break; + case hwmon_temp_fault: + if (chip->have_fault & BIT(channel)) + return 0444; + break; + case hwmon_temp_offset: + if (data->type == max6581 && channel) + return 0644; + break; + default: + break; + } + return 0; } -/* - * max6697_is_visible uses the index into the following array to determine - * if attributes should be created or not. Any change in order or content - * must be matched in max6697_is_visible. - */ -static struct attribute *max6697_attributes[] = { - &sensor_dev_attr_temp1_input.dev_attr.attr, - &sensor_dev_attr_temp1_max.dev_attr.attr, - &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp1_crit.dev_attr.attr, - &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr, - &dev_attr_dummy.attr, - &dev_attr_dummy.attr, - - &sensor_dev_attr_temp2_input.dev_attr.attr, - &sensor_dev_attr_temp2_max.dev_attr.attr, - &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_crit.dev_attr.attr, - &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_fault.dev_attr.attr, - &sensor_dev_attr_temp2_offset.dev_attr.attr, - - &sensor_dev_attr_temp3_input.dev_attr.attr, - &sensor_dev_attr_temp3_max.dev_attr.attr, - &sensor_dev_attr_temp3_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp3_crit.dev_attr.attr, - &sensor_dev_attr_temp3_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp3_fault.dev_attr.attr, - &sensor_dev_attr_temp3_offset.dev_attr.attr, - - &sensor_dev_attr_temp4_input.dev_attr.attr, - &sensor_dev_attr_temp4_max.dev_attr.attr, - &sensor_dev_attr_temp4_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp4_crit.dev_attr.attr, - &sensor_dev_attr_temp4_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp4_fault.dev_attr.attr, - &sensor_dev_attr_temp4_offset.dev_attr.attr, - - &sensor_dev_attr_temp5_input.dev_attr.attr, - &sensor_dev_attr_temp5_max.dev_attr.attr, - &sensor_dev_attr_temp5_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp5_crit.dev_attr.attr, - &sensor_dev_attr_temp5_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp5_fault.dev_attr.attr, - &sensor_dev_attr_temp5_offset.dev_attr.attr, - - &sensor_dev_attr_temp6_input.dev_attr.attr, - &sensor_dev_attr_temp6_max.dev_attr.attr, - &sensor_dev_attr_temp6_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp6_crit.dev_attr.attr, - &sensor_dev_attr_temp6_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp6_fault.dev_attr.attr, - &sensor_dev_attr_temp6_offset.dev_attr.attr, - - &sensor_dev_attr_temp7_input.dev_attr.attr, - &sensor_dev_attr_temp7_max.dev_attr.attr, - &sensor_dev_attr_temp7_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp7_crit.dev_attr.attr, - &sensor_dev_attr_temp7_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp7_fault.dev_attr.attr, - &sensor_dev_attr_temp7_offset.dev_attr.attr, - - &sensor_dev_attr_temp8_input.dev_attr.attr, - &sensor_dev_attr_temp8_max.dev_attr.attr, - &sensor_dev_attr_temp8_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp8_crit.dev_attr.attr, - &sensor_dev_attr_temp8_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp8_fault.dev_attr.attr, - &sensor_dev_attr_temp8_offset.dev_attr.attr, +/* Return 0 if detection is successful, -ENODEV otherwise */ +static const struct hwmon_channel_info * const max6697_info[] = { + HWMON_CHANNEL_INFO(temp, + HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | + HWMON_T_MIN | HWMON_T_MIN_ALARM | + HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM, + HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | + HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM | + HWMON_T_MIN | HWMON_T_MIN_ALARM | + HWMON_T_FAULT | HWMON_T_OFFSET, + HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | + HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM | + HWMON_T_MIN | HWMON_T_MIN_ALARM | + HWMON_T_FAULT | HWMON_T_OFFSET, + HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | + HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM | + HWMON_T_MIN | HWMON_T_MIN_ALARM | + HWMON_T_FAULT | HWMON_T_OFFSET, + HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | + HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM | + HWMON_T_MIN | HWMON_T_MIN_ALARM | + HWMON_T_FAULT | HWMON_T_OFFSET, + HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | + HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM | + HWMON_T_MIN | HWMON_T_MIN_ALARM | + HWMON_T_FAULT | HWMON_T_OFFSET, + HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | + HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM | + HWMON_T_MIN | HWMON_T_MIN_ALARM | + HWMON_T_FAULT | HWMON_T_OFFSET, + HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | + HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM | + HWMON_T_MIN | HWMON_T_MIN_ALARM | + HWMON_T_FAULT | HWMON_T_OFFSET), NULL }; -static const struct attribute_group max6697_group = { - .attrs = max6697_attributes, .is_visible = max6697_is_visible, +static const struct hwmon_ops max6697_hwmon_ops = { + .is_visible = max6697_is_visible, + .read = max6697_read, + .write = max6697_write, }; -__ATTRIBUTE_GROUPS(max6697); -static void max6697_get_config_of(struct device_node *node, - struct max6697_platform_data *pdata) -{ - int len; - const __be32 *prop; - - pdata->smbus_timeout_disable = - of_property_read_bool(node, "smbus-timeout-disable"); - pdata->extended_range_enable = - of_property_read_bool(node, "extended-range-enable"); - pdata->beta_compensation = - of_property_read_bool(node, "beta-compensation-enable"); - - prop = of_get_property(node, "alert-mask", &len); - if (prop && len == sizeof(u32)) - pdata->alert_mask = be32_to_cpu(prop[0]); - prop = of_get_property(node, "over-temperature-mask", &len); - if (prop && len == sizeof(u32)) - pdata->over_temperature_mask = be32_to_cpu(prop[0]); - prop = of_get_property(node, "resistance-cancellation", &len); - if (prop) { - if (len == sizeof(u32)) - pdata->resistance_cancellation = be32_to_cpu(prop[0]); - else - pdata->resistance_cancellation = 0xfe; - } - prop = of_get_property(node, "transistor-ideality", &len); - if (prop && len == 2 * sizeof(u32)) { - pdata->ideality_mask = be32_to_cpu(prop[0]); - pdata->ideality_value = be32_to_cpu(prop[1]); - } -} +static const struct hwmon_chip_info max6697_chip_info = { + .ops = &max6697_hwmon_ops, + .info = max6697_info, +}; -static int max6697_init_chip(struct max6697_data *data, - struct i2c_client *client) +static int max6697_config_of(struct device_node *node, struct max6697_data *data) { - struct max6697_platform_data *pdata = dev_get_platdata(&client->dev); - struct max6697_platform_data p; const struct max6697_chip_data *chip = data->chip; - int factor = chip->channels; - int ret, reg; - - /* - * Don't touch configuration if neither platform data nor OF - * configuration was specified. If that is the case, use the - * current chip configuration. - */ - if (!pdata && !client->dev.of_node) { - reg = i2c_smbus_read_byte_data(client, MAX6697_REG_CONFIG); - if (reg < 0) - return reg; - if (data->type == max6581) { - if (reg & MAX6581_CONF_EXTENDED) - data->temp_offset = 64; - reg = i2c_smbus_read_byte_data(client, - MAX6581_REG_RESISTANCE); - if (reg < 0) - return reg; - factor += hweight8(reg); - } else { - if (reg & MAX6697_CONF_RESISTANCE) - factor++; - } - goto done; - } - - if (client->dev.of_node) { - memset(&p, 0, sizeof(p)); - max6697_get_config_of(client->dev.of_node, &p); - pdata = &p; - } + struct regmap *regmap = data->regmap; + int ret, confreg; + u32 vals[2]; - reg = 0; - if (pdata->smbus_timeout_disable && + confreg = 0; + if (of_property_read_bool(node, "smbus-timeout-disable") && (chip->valid_conf & MAX6697_CONF_TIMEOUT)) { - reg |= MAX6697_CONF_TIMEOUT; + confreg |= MAX6697_CONF_TIMEOUT; } - if (pdata->extended_range_enable && + if (of_property_read_bool(node, "extended-range-enable") && (chip->valid_conf & MAX6581_CONF_EXTENDED)) { - reg |= MAX6581_CONF_EXTENDED; + confreg |= MAX6581_CONF_EXTENDED; data->temp_offset = 64; } - if (pdata->resistance_cancellation && - (chip->valid_conf & MAX6697_CONF_RESISTANCE)) { - reg |= MAX6697_CONF_RESISTANCE; - factor++; - } - if (pdata->beta_compensation && + if (of_property_read_bool(node, "beta-compensation-enable") && (chip->valid_conf & MAX6693_CONF_BETA)) { - reg |= MAX6693_CONF_BETA; + confreg |= MAX6693_CONF_BETA; } - ret = i2c_smbus_write_byte_data(client, MAX6697_REG_CONFIG, reg); - if (ret < 0) + if (of_property_read_u32(node, "alert-mask", vals)) + vals[0] = 0; + ret = regmap_write(regmap, MAX6697_REG_ALERT_MASK, + MAX6697_ALERT_MAP_BITS(vals[0])); + if (ret) return ret; - ret = i2c_smbus_write_byte_data(client, MAX6697_REG_ALERT_MASK, - MAX6697_ALERT_MAP_BITS(pdata->alert_mask)); - if (ret < 0) + if (of_property_read_u32(node, "over-temperature-mask", vals)) + vals[0] = 0; + ret = regmap_write(regmap, MAX6697_REG_OVERT_MASK, + MAX6697_OVERT_MAP_BITS(vals[0])); + if (ret) return ret; - ret = i2c_smbus_write_byte_data(client, MAX6697_REG_OVERT_MASK, - MAX6697_OVERT_MAP_BITS(pdata->over_temperature_mask)); - if (ret < 0) - return ret; + if (data->type != max6581) { + if (of_property_read_bool(node, "resistance-cancellation") && + chip->valid_conf & MAX6697_CONF_RESISTANCE) { + confreg |= MAX6697_CONF_RESISTANCE; + } + } else { + if (of_property_read_u32(node, "resistance-cancellation", &vals[0])) { + if (of_property_read_bool(node, "resistance-cancellation")) + vals[0] = 0xfe; + else + vals[0] = 0; + } - if (data->type == max6581) { - factor += hweight8(pdata->resistance_cancellation >> 1); - ret = i2c_smbus_write_byte_data(client, MAX6581_REG_RESISTANCE, - pdata->resistance_cancellation >> 1); + vals[0] &= 0xfe; + ret = regmap_write(regmap, MAX6581_REG_RESISTANCE, vals[0] >> 1); if (ret < 0) return ret; - ret = i2c_smbus_write_byte_data(client, MAX6581_REG_IDEALITY, - pdata->ideality_value); + + if (of_property_read_u32_array(node, "transistor-ideality", vals, 2)) { + vals[0] = 0; + vals[1] = 0; + } + + ret = regmap_write(regmap, MAX6581_REG_IDEALITY, vals[1]); if (ret < 0) return ret; - ret = i2c_smbus_write_byte_data(client, - MAX6581_REG_IDEALITY_SELECT, - pdata->ideality_mask >> 1); + ret = regmap_write(regmap, MAX6581_REG_IDEALITY_SELECT, + (vals[0] & 0xfe) >> 1); if (ret < 0) return ret; } -done: - data->update_interval = factor * MAX6697_CONV_TIME; - return 0; + return regmap_write(regmap, MAX6697_REG_CONFIG, confreg); } -static const struct i2c_device_id max6697_id[]; +static int max6697_init_chip(struct device_node *np, struct max6697_data *data) +{ + unsigned int reg; + int ret; + + /* + * Don't touch configuration if there is no devicetree configuration. + * If that is the case, use the current chip configuration. + */ + if (!np) { + struct regmap *regmap = data->regmap; + + ret = regmap_read(regmap, MAX6697_REG_CONFIG, ®); + if (ret < 0) + return ret; + if (data->type == max6581) { + if (reg & MAX6581_CONF_EXTENDED) + data->temp_offset = 64; + ret = regmap_read(regmap, MAX6581_REG_RESISTANCE, ®); + } + } else { + ret = max6697_config_of(np, data); + } + + return ret; +} + +static bool max6697_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case 0x00 ... 0x09: /* temperature high bytes */ + case 0x44 ... 0x47: /* status */ + case 0x51 ... 0x58: /* temperature low bytes */ + return true; + default: + return false; + } +} + +static bool max6697_writeable_reg(struct device *dev, unsigned int reg) +{ + return reg != 0x0a && reg != 0x0f && !max6697_volatile_reg(dev, reg); +} + +static const struct regmap_config max6697_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = 0x58, + .writeable_reg = max6697_writeable_reg, + .volatile_reg = max6697_volatile_reg, + .cache_type = REGCACHE_MAPLE, +}; static int max6697_probe(struct i2c_client *client) { - struct i2c_adapter *adapter = client->adapter; struct device *dev = &client->dev; struct max6697_data *data; struct device *hwmon_dev; + struct regmap *regmap; int err; - if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) - return -ENODEV; + regmap = regmap_init_i2c(client, &max6697_regmap_config); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); data = devm_kzalloc(dev, sizeof(struct max6697_data), GFP_KERNEL); if (!data) return -ENOMEM; - if (client->dev.of_node) - data->type = (uintptr_t)of_device_get_match_data(&client->dev); - else - data->type = i2c_match_id(max6697_id, client)->driver_data; + data->regmap = regmap; + data->type = (uintptr_t)i2c_get_match_data(client); data->chip = &max6697_chip_data[data->type]; - data->client = client; mutex_init(&data->update_lock); - err = max6697_init_chip(data, client); + err = max6697_init_chip(client->dev.of_node, data); if (err) return err; - hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, - data, - max6697_groups); + hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, data, + &max6697_chip_info, NULL); return PTR_ERR_OR_ZERO(hwmon_dev); } diff --git a/drivers/hwmon/mc13783-adc.c b/drivers/hwmon/mc13783-adc.c index 67471c9cd4d4..66304d48d33a 100644 --- a/drivers/hwmon/mc13783-adc.c +++ b/drivers/hwmon/mc13783-adc.c @@ -315,7 +315,7 @@ static const struct platform_device_id mc13783_adc_idtable[] = { MODULE_DEVICE_TABLE(platform, mc13783_adc_idtable); static struct platform_driver mc13783_adc_driver = { - .remove_new = mc13783_adc_remove, + .remove = mc13783_adc_remove, .driver = { .name = DRIVER_NAME, }, diff --git a/drivers/hwmon/mc34vr500.c b/drivers/hwmon/mc34vr500.c index 0c8fd3fce83e..84458e4533d8 100644 --- a/drivers/hwmon/mc34vr500.c +++ b/drivers/hwmon/mc34vr500.c @@ -235,7 +235,7 @@ static int mc34vr500_probe(struct i2c_client *client) } static const struct i2c_device_id mc34vr500_id[] = { - { "mc34vr500", 0 }, + { "mc34vr500" }, { }, }; MODULE_DEVICE_TABLE(i2c, mc34vr500_id); diff --git a/drivers/hwmon/mcp3021.c b/drivers/hwmon/mcp3021.c index 9814eaf24564..bcddf6804d3a 100644 --- a/drivers/hwmon/mcp3021.c +++ b/drivers/hwmon/mcp3021.c @@ -116,13 +116,12 @@ static const struct hwmon_chip_info mcp3021_chip_info = { .info = mcp3021_info, }; -static const struct i2c_device_id mcp3021_id[]; - static int mcp3021_probe(struct i2c_client *client) { struct mcp3021_data *data = NULL; struct device_node *np = client->dev.of_node; struct device *hwmon_dev; + enum chips type; if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) return -ENODEV; @@ -149,7 +148,8 @@ static int mcp3021_probe(struct i2c_client *client) data->vdd = MCP3021_VDD_REF_DEFAULT; } - switch (i2c_match_id(mcp3021_id, client)->driver_data) { + type = (uintptr_t)i2c_get_match_data(client); + switch (type) { case mcp3021: data->sar_shift = MCP3021_SAR_SHIFT; data->sar_mask = MCP3021_SAR_MASK; diff --git a/drivers/hwmon/mr75203.c b/drivers/hwmon/mr75203.c index 50a8b9c3f94d..7848198f8996 100644 --- a/drivers/hwmon/mr75203.c +++ b/drivers/hwmon/mr75203.c @@ -925,4 +925,5 @@ static struct platform_driver moortec_pvt_driver = { }; module_platform_driver(moortec_pvt_driver); +MODULE_DESCRIPTION("Moortec Semiconductor MR75203 PVT Controller driver"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/hwmon/nct6683.c b/drivers/hwmon/nct6683.c index 0d016fedb9c2..6cda35388b24 100644 --- a/drivers/hwmon/nct6683.c +++ b/drivers/hwmon/nct6683.c @@ -175,9 +175,12 @@ superio_exit(int ioreg) #define NCT6683_CUSTOMER_ID_MSI 0x201 #define NCT6683_CUSTOMER_ID_MSI2 0x200 #define NCT6683_CUSTOMER_ID_MSI3 0x207 +#define NCT6683_CUSTOMER_ID_MSI4 0x20d +#define NCT6683_CUSTOMER_ID_AMD 0x162b #define NCT6683_CUSTOMER_ID_ASROCK 0xe2c #define NCT6683_CUSTOMER_ID_ASROCK2 0xe1b #define NCT6683_CUSTOMER_ID_ASROCK3 0x1631 +#define NCT6683_CUSTOMER_ID_ASROCK4 0x163e #define NCT6683_REG_BUILD_YEAR 0x604 #define NCT6683_REG_BUILD_MONTH 0x605 @@ -1227,15 +1230,23 @@ static int nct6683_probe(struct platform_device *pdev) break; case NCT6683_CUSTOMER_ID_MSI3: break; + case NCT6683_CUSTOMER_ID_MSI4: + break; + case NCT6683_CUSTOMER_ID_AMD: + break; case NCT6683_CUSTOMER_ID_ASROCK: break; case NCT6683_CUSTOMER_ID_ASROCK2: break; case NCT6683_CUSTOMER_ID_ASROCK3: break; + case NCT6683_CUSTOMER_ID_ASROCK4: + break; default: if (!force) return -ENODEV; + dev_warn(dev, "Enabling support for unknown customer ID 0x%04x\n", data->customer_id); + break; } nct6683_init_device(data); diff --git a/drivers/hwmon/nct6775-core.c b/drivers/hwmon/nct6775-core.c index 9fbab8f02334..79bc67ffb998 100644 --- a/drivers/hwmon/nct6775-core.c +++ b/drivers/hwmon/nct6775-core.c @@ -42,6 +42,9 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt +#undef DEFAULT_SYMBOL_NAMESPACE +#define DEFAULT_SYMBOL_NAMESPACE "HWMON_NCT6775" + #include <linux/module.h> #include <linux/init.h> #include <linux/slab.h> @@ -56,9 +59,6 @@ #include "lm75.h" #include "nct6775.h" -#undef DEFAULT_SYMBOL_NAMESPACE -#define DEFAULT_SYMBOL_NAMESPACE HWMON_NCT6775 - #define USE_ALTERNATE /* used to set data->name = nct6775_device_names[data->sio_kind] */ @@ -273,8 +273,8 @@ static const s8 NCT6776_BEEP_BITS[NUM_BEEP_BITS] = { static const u16 NCT6776_REG_TOLERANCE_H[] = { 0x10c, 0x20c, 0x30c, 0x80c, 0x90c, 0xa0c, 0xb0c }; -static const u8 NCT6776_REG_PWM_MODE[] = { 0x04, 0, 0, 0, 0, 0 }; -static const u8 NCT6776_PWM_MODE_MASK[] = { 0x01, 0, 0, 0, 0, 0 }; +static const u8 NCT6776_REG_PWM_MODE[] = { 0x04, 0, 0, 0, 0, 0, 0 }; +static const u8 NCT6776_PWM_MODE_MASK[] = { 0x01, 0, 0, 0, 0, 0, 0 }; static const u16 NCT6776_REG_FAN_MIN[] = { 0x63a, 0x63c, 0x63e, 0x640, 0x642, 0x64a, 0x64c }; @@ -2262,7 +2262,7 @@ store_temp_offset(struct device *dev, struct device_attribute *attr, if (err < 0) return err; - val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), -128, 127); + val = DIV_ROUND_CLOSEST(clamp_val(val, -128000, 127000), 1000); mutex_lock(&data->update_lock); data->temp_offset[nr] = val; @@ -2878,8 +2878,7 @@ store_target_temp(struct device *dev, struct device_attribute *attr, if (err < 0) return err; - val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, - data->target_temp_mask); + val = DIV_ROUND_CLOSEST(clamp_val(val, 0, data->target_temp_mask * 1000), 1000); mutex_lock(&data->update_lock); data->target_temp[nr] = val; @@ -2959,7 +2958,7 @@ store_temp_tolerance(struct device *dev, struct device_attribute *attr, return err; /* Limit tolerance as needed */ - val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, data->tolerance_mask); + val = DIV_ROUND_CLOSEST(clamp_val(val, 0, data->tolerance_mask * 1000), 1000); mutex_lock(&data->update_lock); data->temp_tolerance[index][nr] = val; @@ -3085,7 +3084,7 @@ store_weight_temp(struct device *dev, struct device_attribute *attr, if (err < 0) return err; - val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, 255); + val = DIV_ROUND_CLOSEST(clamp_val(val, 0, 255000), 1000); mutex_lock(&data->update_lock); data->weight_temp[index][nr] = val; diff --git a/drivers/hwmon/nct6775-i2c.c b/drivers/hwmon/nct6775-i2c.c index aff69fa50461..ba71d776a291 100644 --- a/drivers/hwmon/nct6775-i2c.c +++ b/drivers/hwmon/nct6775-i2c.c @@ -184,4 +184,4 @@ module_i2c_driver(nct6775_i2c_driver); MODULE_AUTHOR("Zev Weiss <zev@bewilderbeest.net>"); MODULE_DESCRIPTION("I2C driver for NCT6775F and compatible chips"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(HWMON_NCT6775); +MODULE_IMPORT_NS("HWMON_NCT6775"); diff --git a/drivers/hwmon/nct6775-platform.c b/drivers/hwmon/nct6775-platform.c index 9aa4dcf4a6f3..0a040364b512 100644 --- a/drivers/hwmon/nct6775-platform.c +++ b/drivers/hwmon/nct6775-platform.c @@ -1269,6 +1269,7 @@ static const char * const asus_msi_boards[] = { "EX-B760M-V5 D4", "EX-H510M-V3", "EX-H610M-V3 D4", + "G15CF", "PRIME A620M-A", "PRIME B560-PLUS", "PRIME B560-PLUS AC-HES", @@ -1349,6 +1350,8 @@ static const char * const asus_msi_boards[] = { "Pro H610M-CT D4", "Pro H610T D4", "Pro Q670M-C", + "Pro WS 600M-CL", + "Pro WS 665-ACE", "Pro WS W680-ACE", "Pro WS W680-ACE IPMI", "Pro WS W790-ACE", @@ -1619,7 +1622,7 @@ static void __exit sensors_nct6775_platform_exit(void) MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>"); MODULE_DESCRIPTION("Platform driver for NCT6775F and compatible chips"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(HWMON_NCT6775); +MODULE_IMPORT_NS("HWMON_NCT6775"); module_init(sensors_nct6775_platform_init); module_exit(sensors_nct6775_platform_exit); diff --git a/drivers/hwmon/nct6775.h b/drivers/hwmon/nct6775.h index d31e7a030216..296eff99d003 100644 --- a/drivers/hwmon/nct6775.h +++ b/drivers/hwmon/nct6775.h @@ -4,7 +4,7 @@ #include <linux/types.h> -enum kinds { nct6106 = 1, nct6116, nct6775, nct6776, nct6779, nct6791, nct6792, +enum kinds { nct6106, nct6116, nct6775, nct6776, nct6779, nct6791, nct6792, nct6793, nct6795, nct6796, nct6797, nct6798, nct6799 }; enum pwm_enable { off, manual, thermal_cruise, speed_cruise, sf3, sf4 }; diff --git a/drivers/hwmon/nct7363.c b/drivers/hwmon/nct7363.c new file mode 100644 index 000000000000..be7bf32f6e68 --- /dev/null +++ b/drivers/hwmon/nct7363.c @@ -0,0 +1,447 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2023 Nuvoton Technology corporation. + */ + +#include <linux/bitfield.h> +#include <linux/bits.h> +#include <linux/err.h> +#include <linux/hwmon.h> +#include <linux/hwmon-sysfs.h> +#include <linux/i2c.h> +#include <linux/module.h> +#include <linux/mutex.h> +#include <linux/regmap.h> +#include <linux/slab.h> + +#define NCT7363_REG_FUNC_CFG_BASE(x) (0x20 + (x)) +#define NCT7363_REG_LSRS(x) (0x34 + ((x) / 8)) +#define NCT7363_REG_PWMEN_BASE(x) (0x38 + (x)) +#define NCT7363_REG_FANINEN_BASE(x) (0x41 + (x)) +#define NCT7363_REG_FANINX_HVAL(x) (0x48 + ((x) * 2)) +#define NCT7363_REG_FANINX_LVAL(x) (0x49 + ((x) * 2)) +#define NCT7363_REG_FANINX_HL(x) (0x6C + ((x) * 2)) +#define NCT7363_REG_FANINX_LL(x) (0x6D + ((x) * 2)) +#define NCT7363_REG_FSCPXDUTY(x) (0x90 + ((x) * 2)) +#define NCT7363_REG_FSCPXDIV(x) (0x91 + ((x) * 2)) + +#define PWM_SEL(x) (BIT(0) << ((x) * 2)) +#define FANIN_SEL(_x) ({typeof(_x) (x) = (_x); \ + BIT(1) << (((x) < 8) ? \ + (((x) + 8) * 2) : \ + (((x) % 8) * 2)); }) +#define ALARM_SEL(x, y) ((x) & (BIT((y) % 8))) +#define VALUE_TO_REG(x, y) (((x) >> ((y) * 8)) & 0xFF) + +#define NCT7363_FANINX_LVAL_MASK GENMASK(4, 0) +#define NCT7363_FANIN_MASK GENMASK(12, 0) + +#define NCT7363_PWM_COUNT 16 + +static inline unsigned int fan_from_reg(u16 val) +{ + if (val == NCT7363_FANIN_MASK || val == 0) + return 0; + + return (1350000UL / val); +} + +static const struct of_device_id nct7363_of_match[] = { + { .compatible = "nuvoton,nct7363", }, + { .compatible = "nuvoton,nct7362", }, + { } +}; +MODULE_DEVICE_TABLE(of, nct7363_of_match); + +struct nct7363_data { + struct regmap *regmap; + + u16 fanin_mask; + u16 pwm_mask; +}; + +static int nct7363_read_fan(struct device *dev, u32 attr, int channel, + long *val) +{ + struct nct7363_data *data = dev_get_drvdata(dev); + unsigned int reg; + u8 regval[2]; + int ret; + u16 cnt; + + switch (attr) { + case hwmon_fan_input: + /* + * High-byte register should be read first to latch + * synchronous low-byte value + */ + ret = regmap_bulk_read(data->regmap, + NCT7363_REG_FANINX_HVAL(channel), + ®val, 2); + if (ret) + return ret; + + cnt = (regval[0] << 5) | (regval[1] & NCT7363_FANINX_LVAL_MASK); + *val = fan_from_reg(cnt); + return 0; + case hwmon_fan_min: + ret = regmap_bulk_read(data->regmap, + NCT7363_REG_FANINX_HL(channel), + ®val, 2); + if (ret) + return ret; + + cnt = (regval[0] << 5) | (regval[1] & NCT7363_FANINX_LVAL_MASK); + *val = fan_from_reg(cnt); + return 0; + case hwmon_fan_alarm: + ret = regmap_read(data->regmap, + NCT7363_REG_LSRS(channel), ®); + if (ret) + return ret; + + *val = (long)ALARM_SEL(reg, channel) > 0 ? 1 : 0; + return 0; + default: + return -EOPNOTSUPP; + } +} + +static int nct7363_write_fan(struct device *dev, u32 attr, int channel, + long val) +{ + struct nct7363_data *data = dev_get_drvdata(dev); + u8 regval[2]; + int ret; + + if (val <= 0) + return -EINVAL; + + switch (attr) { + case hwmon_fan_min: + val = clamp_val(DIV_ROUND_CLOSEST(1350000, val), + 1, NCT7363_FANIN_MASK); + regval[0] = val >> 5; + regval[1] = val & NCT7363_FANINX_LVAL_MASK; + + ret = regmap_bulk_write(data->regmap, + NCT7363_REG_FANINX_HL(channel), + regval, 2); + return ret; + default: + return -EOPNOTSUPP; + } +} + +static umode_t nct7363_fan_is_visible(const void *_data, u32 attr, int channel) +{ + const struct nct7363_data *data = _data; + + switch (attr) { + case hwmon_fan_input: + case hwmon_fan_alarm: + if (data->fanin_mask & BIT(channel)) + return 0444; + break; + case hwmon_fan_min: + if (data->fanin_mask & BIT(channel)) + return 0644; + break; + default: + break; + } + + return 0; +} + +static int nct7363_read_pwm(struct device *dev, u32 attr, int channel, + long *val) +{ + struct nct7363_data *data = dev_get_drvdata(dev); + unsigned int regval; + int ret; + + switch (attr) { + case hwmon_pwm_input: + ret = regmap_read(data->regmap, + NCT7363_REG_FSCPXDUTY(channel), ®val); + if (ret) + return ret; + + *val = (long)regval; + return 0; + default: + return -EOPNOTSUPP; + } +} + +static int nct7363_write_pwm(struct device *dev, u32 attr, int channel, + long val) +{ + struct nct7363_data *data = dev_get_drvdata(dev); + int ret; + + switch (attr) { + case hwmon_pwm_input: + if (val < 0 || val > 255) + return -EINVAL; + + ret = regmap_write(data->regmap, + NCT7363_REG_FSCPXDUTY(channel), val); + + return ret; + + default: + return -EOPNOTSUPP; + } +} + +static umode_t nct7363_pwm_is_visible(const void *_data, u32 attr, int channel) +{ + const struct nct7363_data *data = _data; + + switch (attr) { + case hwmon_pwm_input: + if (data->pwm_mask & BIT(channel)) + return 0644; + break; + default: + break; + } + + return 0; +} + +static int nct7363_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + switch (type) { + case hwmon_fan: + return nct7363_read_fan(dev, attr, channel, val); + case hwmon_pwm: + return nct7363_read_pwm(dev, attr, channel, val); + default: + return -EOPNOTSUPP; + } +} + +static int nct7363_write(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long val) +{ + switch (type) { + case hwmon_fan: + return nct7363_write_fan(dev, attr, channel, val); + case hwmon_pwm: + return nct7363_write_pwm(dev, attr, channel, val); + default: + return -EOPNOTSUPP; + } +} + +static umode_t nct7363_is_visible(const void *data, + enum hwmon_sensor_types type, + u32 attr, int channel) +{ + switch (type) { + case hwmon_fan: + return nct7363_fan_is_visible(data, attr, channel); + case hwmon_pwm: + return nct7363_pwm_is_visible(data, attr, channel); + default: + return 0; + } +} + +static const struct hwmon_channel_info *nct7363_info[] = { + HWMON_CHANNEL_INFO(fan, + HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_ALARM, + HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_ALARM, + HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_ALARM, + HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_ALARM, + HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_ALARM, + HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_ALARM, + HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_ALARM, + HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_ALARM, + HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_ALARM, + HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_ALARM, + HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_ALARM, + HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_ALARM, + HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_ALARM, + HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_ALARM, + HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_ALARM, + HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_ALARM), + HWMON_CHANNEL_INFO(pwm, + HWMON_PWM_INPUT, + HWMON_PWM_INPUT, + HWMON_PWM_INPUT, + HWMON_PWM_INPUT, + HWMON_PWM_INPUT, + HWMON_PWM_INPUT, + HWMON_PWM_INPUT, + HWMON_PWM_INPUT, + HWMON_PWM_INPUT, + HWMON_PWM_INPUT, + HWMON_PWM_INPUT, + HWMON_PWM_INPUT, + HWMON_PWM_INPUT, + HWMON_PWM_INPUT, + HWMON_PWM_INPUT, + HWMON_PWM_INPUT), + NULL +}; + +static const struct hwmon_ops nct7363_hwmon_ops = { + .is_visible = nct7363_is_visible, + .read = nct7363_read, + .write = nct7363_write, +}; + +static const struct hwmon_chip_info nct7363_chip_info = { + .ops = &nct7363_hwmon_ops, + .info = nct7363_info, +}; + +static int nct7363_init_chip(struct nct7363_data *data) +{ + u32 func_config = 0; + int i, ret; + + /* Pin Function Configuration */ + for (i = 0; i < NCT7363_PWM_COUNT; i++) { + if (data->pwm_mask & BIT(i)) + func_config |= PWM_SEL(i); + if (data->fanin_mask & BIT(i)) + func_config |= FANIN_SEL(i); + } + + for (i = 0; i < 4; i++) { + ret = regmap_write(data->regmap, NCT7363_REG_FUNC_CFG_BASE(i), + VALUE_TO_REG(func_config, i)); + if (ret < 0) + return ret; + } + + /* PWM and FANIN Monitoring Enable */ + for (i = 0; i < 2; i++) { + ret = regmap_write(data->regmap, NCT7363_REG_PWMEN_BASE(i), + VALUE_TO_REG(data->pwm_mask, i)); + if (ret < 0) + return ret; + + ret = regmap_write(data->regmap, NCT7363_REG_FANINEN_BASE(i), + VALUE_TO_REG(data->fanin_mask, i)); + if (ret < 0) + return ret; + } + + return 0; +} + +static int nct7363_present_pwm_fanin(struct device *dev, + struct device_node *child, + struct nct7363_data *data) +{ + u8 fanin_ch[NCT7363_PWM_COUNT]; + struct of_phandle_args args; + int ret, fanin_cnt; + u8 ch, index; + + ret = of_parse_phandle_with_args(child, "pwms", "#pwm-cells", + 0, &args); + if (ret) + return ret; + + if (args.args[0] >= NCT7363_PWM_COUNT) + return -EINVAL; + data->pwm_mask |= BIT(args.args[0]); + + fanin_cnt = of_property_count_u8_elems(child, "tach-ch"); + if (fanin_cnt < 1 || fanin_cnt > NCT7363_PWM_COUNT) + return -EINVAL; + + ret = of_property_read_u8_array(child, "tach-ch", fanin_ch, fanin_cnt); + if (ret) + return ret; + + for (ch = 0; ch < fanin_cnt; ch++) { + index = fanin_ch[ch]; + if (index >= NCT7363_PWM_COUNT) + return -EINVAL; + data->fanin_mask |= BIT(index); + } + + return 0; +} + +static bool nct7363_regmap_is_volatile(struct device *dev, unsigned int reg) +{ + switch (reg) { + case NCT7363_REG_LSRS(0) ... NCT7363_REG_LSRS(15): + case NCT7363_REG_FANINX_HVAL(0) ... NCT7363_REG_FANINX_LVAL(15): + case NCT7363_REG_FANINX_HL(0) ... NCT7363_REG_FANINX_LL(15): + case NCT7363_REG_FSCPXDUTY(0) ... NCT7363_REG_FSCPXDIV(15): + return true; + default: + return false; + } +} + +static const struct regmap_config nct7363_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .use_single_read = true, + .use_single_write = true, + .cache_type = REGCACHE_RBTREE, + .volatile_reg = nct7363_regmap_is_volatile, +}; + +static int nct7363_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + struct device_node *child; + struct nct7363_data *data; + struct device *hwmon_dev; + int ret; + + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->regmap = devm_regmap_init_i2c(client, &nct7363_regmap_config); + if (IS_ERR(data->regmap)) + return PTR_ERR(data->regmap); + + for_each_child_of_node(dev->of_node, child) { + ret = nct7363_present_pwm_fanin(dev, child, data); + if (ret) { + of_node_put(child); + return ret; + } + } + + /* Initialize the chip */ + ret = nct7363_init_chip(data); + if (ret) + return ret; + + hwmon_dev = + devm_hwmon_device_register_with_info(dev, client->name, data, + &nct7363_chip_info, NULL); + return PTR_ERR_OR_ZERO(hwmon_dev); +} + +static struct i2c_driver nct7363_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "nct7363", + .of_match_table = nct7363_of_match, + }, + .probe = nct7363_probe, +}; + +module_i2c_driver(nct7363_driver); + +MODULE_AUTHOR("CW Ho <cwho@nuvoton.com>"); +MODULE_AUTHOR("Ban Feng <kcfeng0@nuvoton.com>"); +MODULE_DESCRIPTION("NCT7363 Hardware Monitoring Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/nct7802.c b/drivers/hwmon/nct7802.c index a0e664d5ebfe..8c9351da12c6 100644 --- a/drivers/hwmon/nct7802.c +++ b/drivers/hwmon/nct7802.c @@ -229,41 +229,34 @@ abort: static int nct7802_read_fan(struct nct7802_data *data, u8 reg_fan) { - unsigned int f1, f2; + unsigned int regs[2] = {reg_fan, REG_FANCOUNT_LOW}; + u8 f[2]; int ret; - mutex_lock(&data->access_lock); - ret = regmap_read(data->regmap, reg_fan, &f1); - if (ret < 0) - goto abort; - ret = regmap_read(data->regmap, REG_FANCOUNT_LOW, &f2); - if (ret < 0) - goto abort; - ret = (f1 << 5) | (f2 >> 3); + ret = regmap_multi_reg_read(data->regmap, regs, f, 2); + if (ret) + return ret; + ret = (f[0] << 5) | (f[1] >> 3); /* convert fan count to rpm */ if (ret == 0x1fff) /* maximum value, assume fan is stopped */ ret = 0; else if (ret) ret = DIV_ROUND_CLOSEST(1350000U, ret); -abort: - mutex_unlock(&data->access_lock); return ret; } static int nct7802_read_fan_min(struct nct7802_data *data, u8 reg_fan_low, u8 reg_fan_high) { - unsigned int f1, f2; + unsigned int regs[2] = {reg_fan_low, reg_fan_high}; + u8 f[2]; int ret; - mutex_lock(&data->access_lock); - ret = regmap_read(data->regmap, reg_fan_low, &f1); - if (ret < 0) - goto abort; - ret = regmap_read(data->regmap, reg_fan_high, &f2); + ret = regmap_multi_reg_read(data->regmap, regs, f, 2); if (ret < 0) - goto abort; - ret = f1 | ((f2 & 0xf8) << 5); + return ret; + + ret = f[0] | ((f[1] & 0xf8) << 5); /* convert fan count to rpm */ if (ret == 0x1fff) /* maximum value, assume no limit */ ret = 0; @@ -271,8 +264,6 @@ static int nct7802_read_fan_min(struct nct7802_data *data, u8 reg_fan_low, ret = DIV_ROUND_CLOSEST(1350000U, ret); else ret = 1350000U; -abort: - mutex_unlock(&data->access_lock); return ret; } @@ -302,33 +293,26 @@ static u8 nct7802_vmul[] = { 4, 2, 2, 2, 2 }; static int nct7802_read_voltage(struct nct7802_data *data, int nr, int index) { - unsigned int v1, v2; + u8 v[2]; int ret; - mutex_lock(&data->access_lock); if (index == 0) { /* voltage */ - ret = regmap_read(data->regmap, REG_VOLTAGE[nr], &v1); - if (ret < 0) - goto abort; - ret = regmap_read(data->regmap, REG_VOLTAGE_LOW, &v2); + unsigned int regs[2] = {REG_VOLTAGE[nr], REG_VOLTAGE_LOW}; + + ret = regmap_multi_reg_read(data->regmap, regs, v, 2); if (ret < 0) - goto abort; - ret = ((v1 << 2) | (v2 >> 6)) * nct7802_vmul[nr]; + return ret; + ret = ((v[0] << 2) | (v[1] >> 6)) * nct7802_vmul[nr]; } else { /* limit */ int shift = 8 - REG_VOLTAGE_LIMIT_MSB_SHIFT[index - 1][nr]; + unsigned int regs[2] = {REG_VOLTAGE_LIMIT_LSB[index - 1][nr], + REG_VOLTAGE_LIMIT_MSB[nr]}; - ret = regmap_read(data->regmap, - REG_VOLTAGE_LIMIT_LSB[index - 1][nr], &v1); - if (ret < 0) - goto abort; - ret = regmap_read(data->regmap, REG_VOLTAGE_LIMIT_MSB[nr], - &v2); + ret = regmap_multi_reg_read(data->regmap, regs, v, 2); if (ret < 0) - goto abort; - ret = (v1 | ((v2 << shift) & 0x300)) * nct7802_vmul[nr]; + return ret; + ret = (v[0] | ((v[1] << shift) & 0x300)) * nct7802_vmul[nr]; } -abort: - mutex_unlock(&data->access_lock); return ret; } @@ -1145,17 +1129,14 @@ static int nct7802_configure_channels(struct device *dev, { /* Enable local temperature sensor by default */ u8 mode_mask = MODE_LTD_EN, mode_val = MODE_LTD_EN; - struct device_node *node; int err; if (dev->of_node) { - for_each_child_of_node(dev->of_node, node) { + for_each_child_of_node_scoped(dev->of_node, node) { err = nct7802_get_channel_config(dev, node, &mode_mask, &mode_val); - if (err) { - of_node_put(node); + if (err) return err; - } } } @@ -1212,7 +1193,7 @@ static const unsigned short nct7802_address_list[] = { }; static const struct i2c_device_id nct7802_idtable[] = { - { "nct7802", 0 }, + { "nct7802" }, { } }; MODULE_DEVICE_TABLE(i2c, nct7802_idtable); diff --git a/drivers/hwmon/nct7904.c b/drivers/hwmon/nct7904.c index 8f867d4570e1..f1e6eda949ba 100644 --- a/drivers/hwmon/nct7904.c +++ b/drivers/hwmon/nct7904.c @@ -1161,7 +1161,7 @@ static int nct7904_probe(struct i2c_client *client) } static const struct i2c_device_id nct7904_id[] = { - {"nct7904", 0}, + {"nct7904"}, {} }; MODULE_DEVICE_TABLE(i2c, nct7904_id); diff --git a/drivers/hwmon/npcm750-pwm-fan.c b/drivers/hwmon/npcm750-pwm-fan.c index 904816abb7c4..db3b551828eb 100644 --- a/drivers/hwmon/npcm750-pwm-fan.c +++ b/drivers/hwmon/npcm750-pwm-fan.c @@ -196,8 +196,6 @@ struct npcm7xx_pwm_fan_data { void __iomem *pwm_base; void __iomem *fan_base; int pwm_modules; - unsigned long pwm_clk_freq; - unsigned long fan_clk_freq; struct clk *pwm_clk; struct clk *fan_clk; struct mutex pwm_lock[NPCM7XX_PWM_MAX_MODULES]; @@ -692,11 +690,12 @@ static u32 npcm7xx_pwm_init(struct npcm7xx_pwm_fan_data *data) { int m, ch; u32 prescale_val, output_freq; + unsigned long pwm_clk_freq; - data->pwm_clk_freq = clk_get_rate(data->pwm_clk); + pwm_clk_freq = clk_get_rate(data->pwm_clk); /* Adjust NPCM7xx PWMs output frequency to ~25Khz */ - output_freq = data->pwm_clk_freq / PWN_CNT_DEFAULT; + output_freq = pwm_clk_freq / PWN_CNT_DEFAULT; prescale_val = DIV_ROUND_CLOSEST(output_freq, PWM_OUTPUT_FREQ_25KHZ); /* If prescale_val = 0, then the prescale output clock is stopped */ @@ -928,7 +927,7 @@ static int npcm7xx_en_pwm_fan(struct device *dev, static int npcm7xx_pwm_fan_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct device_node *np, *child; + struct device_node *np; struct npcm7xx_pwm_fan_data *data; struct resource *res; struct device *hwmon; @@ -1005,11 +1004,10 @@ static int npcm7xx_pwm_fan_probe(struct platform_device *pdev) } } - for_each_child_of_node(np, child) { + for_each_child_of_node_scoped(np, child) { ret = npcm7xx_en_pwm_fan(dev, child, data); if (ret) { dev_err(dev, "enable pwm and fan failed\n"); - of_node_put(child); return ret; } } diff --git a/drivers/hwmon/ntc_thermistor.c b/drivers/hwmon/ntc_thermistor.c index ef75b63f5894..d21f7266c411 100644 --- a/drivers/hwmon/ntc_thermistor.c +++ b/drivers/hwmon/ntc_thermistor.c @@ -62,6 +62,7 @@ static const struct platform_device_id ntc_thermistor_id[] = { [NTC_SSG1404001221] = { "ssg1404_001221", TYPE_NCPXXWB473 }, [NTC_LAST] = { }, }; +MODULE_DEVICE_TABLE(platform, ntc_thermistor_id); /* * A compensation table should be sorted by the values of .ohm @@ -180,40 +181,40 @@ static const struct ntc_compensation ncpXXwf104[] = { }; static const struct ntc_compensation ncpXXxh103[] = { - { .temp_c = -40, .ohm = 247565 }, - { .temp_c = -35, .ohm = 181742 }, - { .temp_c = -30, .ohm = 135128 }, - { .temp_c = -25, .ohm = 101678 }, - { .temp_c = -20, .ohm = 77373 }, - { .temp_c = -15, .ohm = 59504 }, - { .temp_c = -10, .ohm = 46222 }, - { .temp_c = -5, .ohm = 36244 }, - { .temp_c = 0, .ohm = 28674 }, - { .temp_c = 5, .ohm = 22878 }, - { .temp_c = 10, .ohm = 18399 }, - { .temp_c = 15, .ohm = 14910 }, - { .temp_c = 20, .ohm = 12169 }, + { .temp_c = -40, .ohm = 195652 }, + { .temp_c = -35, .ohm = 148171 }, + { .temp_c = -30, .ohm = 113347 }, + { .temp_c = -25, .ohm = 87559 }, + { .temp_c = -20, .ohm = 68237 }, + { .temp_c = -15, .ohm = 53650 }, + { .temp_c = -10, .ohm = 42506 }, + { .temp_c = -5, .ohm = 33892 }, + { .temp_c = 0, .ohm = 27219 }, + { .temp_c = 5, .ohm = 22021 }, + { .temp_c = 10, .ohm = 17926 }, + { .temp_c = 15, .ohm = 14674 }, + { .temp_c = 20, .ohm = 12081 }, { .temp_c = 25, .ohm = 10000 }, - { .temp_c = 30, .ohm = 8271 }, - { .temp_c = 35, .ohm = 6883 }, - { .temp_c = 40, .ohm = 5762 }, - { .temp_c = 45, .ohm = 4851 }, - { .temp_c = 50, .ohm = 4105 }, - { .temp_c = 55, .ohm = 3492 }, - { .temp_c = 60, .ohm = 2985 }, - { .temp_c = 65, .ohm = 2563 }, - { .temp_c = 70, .ohm = 2211 }, - { .temp_c = 75, .ohm = 1915 }, - { .temp_c = 80, .ohm = 1666 }, - { .temp_c = 85, .ohm = 1454 }, - { .temp_c = 90, .ohm = 1275 }, - { .temp_c = 95, .ohm = 1121 }, - { .temp_c = 100, .ohm = 990 }, - { .temp_c = 105, .ohm = 876 }, - { .temp_c = 110, .ohm = 779 }, - { .temp_c = 115, .ohm = 694 }, - { .temp_c = 120, .ohm = 620 }, - { .temp_c = 125, .ohm = 556 }, + { .temp_c = 30, .ohm = 8315 }, + { .temp_c = 35, .ohm = 6948 }, + { .temp_c = 40, .ohm = 5834 }, + { .temp_c = 45, .ohm = 4917 }, + { .temp_c = 50, .ohm = 4161 }, + { .temp_c = 55, .ohm = 3535 }, + { .temp_c = 60, .ohm = 3014 }, + { .temp_c = 65, .ohm = 2586 }, + { .temp_c = 70, .ohm = 2228 }, + { .temp_c = 75, .ohm = 1925 }, + { .temp_c = 80, .ohm = 1669 }, + { .temp_c = 85, .ohm = 1452 }, + { .temp_c = 90, .ohm = 1268 }, + { .temp_c = 95, .ohm = 1110 }, + { .temp_c = 100, .ohm = 974 }, + { .temp_c = 105, .ohm = 858 }, + { .temp_c = 110, .ohm = 758 }, + { .temp_c = 115, .ohm = 672 }, + { .temp_c = 120, .ohm = 596 }, + { .temp_c = 125, .ohm = 531 }, }; /* @@ -386,12 +387,9 @@ static int get_ohm_of_thermistor(struct ntc_data *data, unsigned int uv) puo = data->pullup_ohm; pdo = data->pulldown_ohm; - if (uv == 0) - return (data->connect == NTC_CONNECTED_POSITIVE) ? - INT_MAX : 0; - if (uv >= puv) - return (data->connect == NTC_CONNECTED_POSITIVE) ? - 0 : INT_MAX; + /* faulty adc value */ + if (uv == 0 || uv >= puv) + return -ENODATA; if (data->connect == NTC_CONNECTED_POSITIVE && puo == 0) n = div_u64(pdo * (puv - uv), uv); @@ -403,8 +401,10 @@ static int get_ohm_of_thermistor(struct ntc_data *data, unsigned int uv) else n = div64_u64_safe(pdo * puo * uv, pdo * (puv - uv) - puo * uv); - if (n > INT_MAX) - n = INT_MAX; + /* sensor out of bounds */ + if (n > data->comp[0].ohm || n < data->comp[data->n_comp - 1].ohm) + return -ENODATA; + return n; } diff --git a/drivers/hwmon/nzxt-kraken2.c b/drivers/hwmon/nzxt-kraken2.c index 7caf387eb144..034698232758 100644 --- a/drivers/hwmon/nzxt-kraken2.c +++ b/drivers/hwmon/nzxt-kraken2.c @@ -9,7 +9,7 @@ * Copyright 2019-2021 Jonas Malaco <jonas@protocubo.io> */ -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <linux/hid.h> #include <linux/hwmon.h> #include <linux/jiffies.h> @@ -35,13 +35,6 @@ struct kraken2_priv_data { unsigned long updated; /* jiffies */ }; -static umode_t kraken2_is_visible(const void *data, - enum hwmon_sensor_types type, - u32 attr, int channel) -{ - return 0444; -} - static int kraken2_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, long *val) { @@ -81,7 +74,7 @@ static int kraken2_read_string(struct device *dev, enum hwmon_sensor_types type, } static const struct hwmon_ops kraken2_hwmon_ops = { - .is_visible = kraken2_is_visible, + .visible = 0444, .read = kraken2_read, .read_string = kraken2_read_string, }; diff --git a/drivers/hwmon/nzxt-kraken3.c b/drivers/hwmon/nzxt-kraken3.c index 5806a3f32bcb..d00409bcab93 100644 --- a/drivers/hwmon/nzxt-kraken3.c +++ b/drivers/hwmon/nzxt-kraken3.c @@ -1,8 +1,8 @@ // SPDX-License-Identifier: GPL-2.0+ /* - * hwmon driver for NZXT Kraken X53/X63/X73 and Z53/Z63/Z73 all in one coolers. - * X53 and Z53 in code refer to all models in their respective series (shortened - * for brevity). + * hwmon driver for NZXT Kraken X53/X63/X73, Z53/Z63/Z73 and 2023/2023 Elite all in one coolers. + * X53 and Z53 in code refer to all models in their respective series (shortened for brevity). + * 2023 models use the Z53 code paths. * * Copyright 2021 Jonas Malaco <jonas@protocubo.io> * Copyright 2022 Aleksa Savic <savicaleksa83@gmail.com> @@ -17,21 +17,18 @@ #include <linux/mutex.h> #include <linux/spinlock.h> #include <linux/wait.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #define USB_VENDOR_ID_NZXT 0x1e71 #define USB_PRODUCT_ID_X53 0x2007 #define USB_PRODUCT_ID_X53_SECOND 0x2014 #define USB_PRODUCT_ID_Z53 0x3008 +#define USB_PRODUCT_ID_KRAKEN2023 0x300E +#define USB_PRODUCT_ID_KRAKEN2023_ELITE 0x300C -enum kinds { X53, Z53 } __packed; +enum kinds { X53, Z53, KRAKEN2023 } __packed; enum pwm_enable { off, manual, curve } __packed; -static const char *const kraken3_device_names[] = { - [X53] = "x53", - [Z53] = "z53", -}; - #define DRIVER_NAME "nzxt_kraken3" #define STATUS_REPORT_ID 0x75 #define FIRMWARE_REPORT_ID 0x11 @@ -141,6 +138,7 @@ static umode_t kraken3_is_visible(const void *data, enum hwmon_sensor_types type return 0444; break; case Z53: + case KRAKEN2023: /* Pump and fan */ if (channel < 2) return 0444; @@ -160,6 +158,7 @@ static umode_t kraken3_is_visible(const void *data, enum hwmon_sensor_types type return 0644; break; case Z53: + case KRAKEN2023: /* Pump and fan */ if (channel < 2) return 0644; @@ -247,6 +246,7 @@ static int kraken3_read_x53(struct kraken3_data *priv) return 0; } +/* Covers Z53 and KRAKEN2023 device kinds */ static int kraken3_read_z53(struct kraken3_data *priv) { int ret = mutex_lock_interruptible(&priv->z53_status_request_lock); @@ -360,6 +360,13 @@ static int kraken3_write_curve(struct kraken3_data *priv, u8 *curve_array, int c /* Set the correct ID for writing pump/fan duty (0x01 or 0x02, respectively) */ fixed_duty_cmd[SET_DUTY_ID_OFFSET] = channel + 1; + if (priv->kind == KRAKEN2023) { + /* These require 1s in the next one or two slots after SET_DUTY_ID_OFFSET */ + fixed_duty_cmd[SET_DUTY_ID_OFFSET + 1] = 1; + if (channel == 1) /* Fan */ + fixed_duty_cmd[SET_DUTY_ID_OFFSET + 2] = 1; + } + /* Copy curve to command */ memcpy(fixed_duty_cmd + SET_CURVE_DUTY_CMD_HEADER_LENGTH, curve_array, CUSTOM_CURVE_POINTS); @@ -507,8 +514,8 @@ static umode_t kraken3_curve_props_are_visible(struct kobject *kobj, struct attr struct device *dev = kobj_to_dev(kobj); struct kraken3_data *priv = dev_get_drvdata(dev); - /* Only Z53 has the fan curve */ - if (index >= CUSTOM_CURVE_POINTS && priv->kind != Z53) + /* X53 does not have a fan */ + if (index >= CUSTOM_CURVE_POINTS && priv->kind == X53) return 0; return attr->mode; @@ -774,8 +781,8 @@ static int kraken3_raw_event(struct hid_device *hdev, struct hid_report *report, if (priv->kind == X53 && !completion_done(&priv->status_report_processed)) { /* Mark first X-series device report as received */ complete_all(&priv->status_report_processed); - } else if (priv->kind == Z53) { - /* Additional readings for Z53 */ + } else if (priv->kind == Z53 || priv->kind == KRAKEN2023) { + /* Additional readings for Z53 and KRAKEN2023 */ priv->fan_input[1] = get_unaligned_le16(data + Z53_FAN_SPEED_OFFSET); priv->channel_info[1].reported_duty = kraken3_percent_to_pwm(data[Z53_FAN_DUTY_OFFSET]); @@ -849,14 +856,14 @@ static int firmware_version_show(struct seq_file *seqf, void *unused) } DEFINE_SHOW_ATTRIBUTE(firmware_version); -static void kraken3_debugfs_init(struct kraken3_data *priv) +static void kraken3_debugfs_init(struct kraken3_data *priv, const char *device_name) { char name[64]; if (!priv->firmware_version[0]) return; /* Nothing to display in debugfs */ - scnprintf(name, sizeof(name), "%s_%s-%s", DRIVER_NAME, kraken3_device_names[priv->kind], + scnprintf(name, sizeof(name), "%s_%s-%s", DRIVER_NAME, device_name, dev_name(&priv->hdev->dev)); priv->debugfs = debugfs_create_dir(name, NULL); @@ -866,6 +873,7 @@ static void kraken3_debugfs_init(struct kraken3_data *priv) static int kraken3_probe(struct hid_device *hdev, const struct hid_device_id *id) { struct kraken3_data *priv; + const char *device_name; int ret; priv = devm_kzalloc(&hdev->dev, sizeof(*priv), GFP_KERNEL); @@ -905,12 +913,23 @@ static int kraken3_probe(struct hid_device *hdev, const struct hid_device_id *id case USB_PRODUCT_ID_X53: case USB_PRODUCT_ID_X53_SECOND: priv->kind = X53; + device_name = "x53"; break; case USB_PRODUCT_ID_Z53: priv->kind = Z53; + device_name = "z53"; break; - default: + case USB_PRODUCT_ID_KRAKEN2023: + priv->kind = KRAKEN2023; + device_name = "kraken2023"; + break; + case USB_PRODUCT_ID_KRAKEN2023_ELITE: + priv->kind = KRAKEN2023; + device_name = "kraken2023elite"; break; + default: + ret = -ENODEV; + goto fail_and_close; } priv->buffer = devm_kzalloc(&hdev->dev, MAX_REPORT_LENGTH, GFP_KERNEL); @@ -936,8 +955,7 @@ static int kraken3_probe(struct hid_device *hdev, const struct hid_device_id *id if (ret < 0) hid_warn(hdev, "fw version request failed with %d\n", ret); - priv->hwmon_dev = hwmon_device_register_with_info(&hdev->dev, - kraken3_device_names[priv->kind], priv, + priv->hwmon_dev = hwmon_device_register_with_info(&hdev->dev, device_name, priv, &kraken3_chip_info, kraken3_groups); if (IS_ERR(priv->hwmon_dev)) { ret = PTR_ERR(priv->hwmon_dev); @@ -945,7 +963,7 @@ static int kraken3_probe(struct hid_device *hdev, const struct hid_device_id *id goto fail_and_close; } - kraken3_debugfs_init(priv); + kraken3_debugfs_init(priv, device_name); return 0; @@ -972,6 +990,8 @@ static const struct hid_device_id kraken3_table[] = { { HID_USB_DEVICE(USB_VENDOR_ID_NZXT, USB_PRODUCT_ID_X53) }, { HID_USB_DEVICE(USB_VENDOR_ID_NZXT, USB_PRODUCT_ID_X53_SECOND) }, { HID_USB_DEVICE(USB_VENDOR_ID_NZXT, USB_PRODUCT_ID_Z53) }, + { HID_USB_DEVICE(USB_VENDOR_ID_NZXT, USB_PRODUCT_ID_KRAKEN2023) }, + { HID_USB_DEVICE(USB_VENDOR_ID_NZXT, USB_PRODUCT_ID_KRAKEN2023_ELITE) }, { } }; diff --git a/drivers/hwmon/nzxt-smart2.c b/drivers/hwmon/nzxt-smart2.c index 7aa586eb74be..c2d1173f42fe 100644 --- a/drivers/hwmon/nzxt-smart2.c +++ b/drivers/hwmon/nzxt-smart2.c @@ -14,7 +14,7 @@ #include <linux/wait.h> #include <asm/byteorder.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> /* * The device has only 3 fan channels/connectors. But all HID reports have @@ -799,6 +799,7 @@ static const struct hid_device_id nzxt_smart2_hid_id_table[] = { { HID_USB_DEVICE(0x1e71, 0x2010) }, /* NZXT RGB & Fan Controller */ { HID_USB_DEVICE(0x1e71, 0x2011) }, /* NZXT RGB & Fan Controller (6 RGB) */ { HID_USB_DEVICE(0x1e71, 0x2019) }, /* NZXT RGB & Fan Controller (6 RGB) */ + { HID_USB_DEVICE(0x1e71, 0x2020) }, /* NZXT RGB & Fan Controller (6 RGB) */ {}, }; diff --git a/drivers/hwmon/occ/common.c b/drivers/hwmon/occ/common.c index dd690f700d49..9486db249c64 100644 --- a/drivers/hwmon/occ/common.c +++ b/drivers/hwmon/occ/common.c @@ -12,7 +12,7 @@ #include <linux/mutex.h> #include <linux/property.h> #include <linux/sysfs.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "common.h" diff --git a/drivers/hwmon/occ/p8_i2c.c b/drivers/hwmon/occ/p8_i2c.c index 31159606cec7..5817a099c622 100644 --- a/drivers/hwmon/occ/p8_i2c.c +++ b/drivers/hwmon/occ/p8_i2c.c @@ -8,7 +8,7 @@ #include <linux/jiffies.h> #include <linux/module.h> #include <linux/sched.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "common.h" diff --git a/drivers/hwmon/occ/p9_sbe.c b/drivers/hwmon/occ/p9_sbe.c index b5993c79c09e..1e3749dfa598 100644 --- a/drivers/hwmon/occ/p9_sbe.c +++ b/drivers/hwmon/occ/p9_sbe.c @@ -30,7 +30,7 @@ struct p9_sbe_occ { #define to_p9_sbe_occ(x) container_of((x), struct p9_sbe_occ, occ) static ssize_t ffdc_read(struct file *filp, struct kobject *kobj, - struct bin_attribute *battr, char *buf, loff_t pos, + const struct bin_attribute *battr, char *buf, loff_t pos, size_t count) { ssize_t rc = 0; @@ -48,7 +48,7 @@ static ssize_t ffdc_read(struct file *filp, struct kobject *kobj, return rc; } -static BIN_ATTR_RO(ffdc, OCC_MAX_RESP_WORDS * 4); +static const BIN_ATTR_RO(ffdc, OCC_MAX_RESP_WORDS * 4); static bool p9_sbe_occ_save_ffdc(struct p9_sbe_occ *ctx, const void *resp, size_t resp_len) @@ -192,8 +192,8 @@ static struct platform_driver p9_sbe_occ_driver = { .name = "occ-hwmon", .of_match_table = p9_sbe_occ_of_match, }, - .probe = p9_sbe_occ_probe, - .remove_new = p9_sbe_occ_remove, + .probe = p9_sbe_occ_probe, + .remove = p9_sbe_occ_remove, }; module_platform_driver(p9_sbe_occ_driver); diff --git a/drivers/hwmon/oxp-sensors.c b/drivers/hwmon/oxp-sensors.c deleted file mode 100644 index 8d3b0f86cc57..000000000000 --- a/drivers/hwmon/oxp-sensors.c +++ /dev/null @@ -1,503 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * Platform driver for OneXPlayer, AOK ZOE, and Aya Neo Handhelds that expose - * fan reading and control via hwmon sysfs. - * - * Old OXP boards have the same DMI strings and they are told apart by - * the boot cpu vendor (Intel/AMD). Currently only AMD boards are - * supported but the code is made to be simple to add other handheld - * boards in the future. - * Fan control is provided via pwm interface in the range [0-255]. - * Old AMD boards use [0-100] as range in the EC, the written value is - * scaled to accommodate for that. Newer boards like the mini PRO and - * AOK ZOE are not scaled but have the same EC layout. - * - * Copyright (C) 2022 Joaquín I. Aramendía <samsagax@gmail.com> - */ - -#include <linux/acpi.h> -#include <linux/dmi.h> -#include <linux/hwmon.h> -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/processor.h> - -/* Handle ACPI lock mechanism */ -static u32 oxp_mutex; - -#define ACPI_LOCK_DELAY_MS 500 - -static bool lock_global_acpi_lock(void) -{ - return ACPI_SUCCESS(acpi_acquire_global_lock(ACPI_LOCK_DELAY_MS, &oxp_mutex)); -} - -static bool unlock_global_acpi_lock(void) -{ - return ACPI_SUCCESS(acpi_release_global_lock(oxp_mutex)); -} - -enum oxp_board { - aok_zoe_a1 = 1, - aya_neo_2, - aya_neo_air, - aya_neo_air_plus_mendo, - aya_neo_air_pro, - aya_neo_geek, - oxp_mini_amd, - oxp_mini_amd_a07, - oxp_mini_amd_pro, -}; - -static enum oxp_board board; - -/* Fan reading and PWM */ -#define OXP_SENSOR_FAN_REG 0x76 /* Fan reading is 2 registers long */ -#define OXP_SENSOR_PWM_ENABLE_REG 0x4A /* PWM enable is 1 register long */ -#define OXP_SENSOR_PWM_REG 0x4B /* PWM reading is 1 register long */ - -/* Turbo button takeover function - * Older boards have different values and EC registers - * for the same function - */ -#define OXP_OLD_TURBO_SWITCH_REG 0x1E -#define OXP_OLD_TURBO_TAKE_VAL 0x01 -#define OXP_OLD_TURBO_RETURN_VAL 0x00 - -#define OXP_TURBO_SWITCH_REG 0xF1 -#define OXP_TURBO_TAKE_VAL 0x40 -#define OXP_TURBO_RETURN_VAL 0x00 - -static const struct dmi_system_id dmi_table[] = { - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "AOKZOE"), - DMI_EXACT_MATCH(DMI_BOARD_NAME, "AOKZOE A1 AR07"), - }, - .driver_data = (void *)aok_zoe_a1, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "AOKZOE"), - DMI_EXACT_MATCH(DMI_BOARD_NAME, "AOKZOE A1 Pro"), - }, - .driver_data = (void *)aok_zoe_a1, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "AYANEO"), - DMI_EXACT_MATCH(DMI_BOARD_NAME, "AYANEO 2"), - }, - .driver_data = (void *)aya_neo_2, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "AYANEO"), - DMI_EXACT_MATCH(DMI_BOARD_NAME, "AIR"), - }, - .driver_data = (void *)aya_neo_air, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "AYANEO"), - DMI_EXACT_MATCH(DMI_BOARD_NAME, "AB05-Mendocino"), - }, - .driver_data = (void *)aya_neo_air_plus_mendo, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "AYANEO"), - DMI_EXACT_MATCH(DMI_BOARD_NAME, "AIR Pro"), - }, - .driver_data = (void *)aya_neo_air_pro, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "AYANEO"), - DMI_EXACT_MATCH(DMI_BOARD_NAME, "GEEK"), - }, - .driver_data = (void *)aya_neo_geek, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "ONE-NETBOOK"), - DMI_EXACT_MATCH(DMI_BOARD_NAME, "ONE XPLAYER"), - }, - .driver_data = (void *)oxp_mini_amd, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "ONE-NETBOOK"), - DMI_EXACT_MATCH(DMI_BOARD_NAME, "ONEXPLAYER mini A07"), - }, - .driver_data = (void *)oxp_mini_amd_a07, - }, - { - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "ONE-NETBOOK"), - DMI_EXACT_MATCH(DMI_BOARD_NAME, "ONEXPLAYER Mini Pro"), - }, - .driver_data = (void *)oxp_mini_amd_pro, - }, - {}, -}; - -/* Helper functions to handle EC read/write */ -static int read_from_ec(u8 reg, int size, long *val) -{ - int i; - int ret; - u8 buffer; - - if (!lock_global_acpi_lock()) - return -EBUSY; - - *val = 0; - for (i = 0; i < size; i++) { - ret = ec_read(reg + i, &buffer); - if (ret) - return ret; - *val <<= i * 8; - *val += buffer; - } - - if (!unlock_global_acpi_lock()) - return -EBUSY; - - return 0; -} - -static int write_to_ec(u8 reg, u8 value) -{ - int ret; - - if (!lock_global_acpi_lock()) - return -EBUSY; - - ret = ec_write(reg, value); - - if (!unlock_global_acpi_lock()) - return -EBUSY; - - return ret; -} - -/* Turbo button toggle functions */ -static int tt_toggle_enable(void) -{ - u8 reg; - u8 val; - - switch (board) { - case oxp_mini_amd_a07: - reg = OXP_OLD_TURBO_SWITCH_REG; - val = OXP_OLD_TURBO_TAKE_VAL; - break; - case oxp_mini_amd_pro: - case aok_zoe_a1: - reg = OXP_TURBO_SWITCH_REG; - val = OXP_TURBO_TAKE_VAL; - break; - default: - return -EINVAL; - } - return write_to_ec(reg, val); -} - -static int tt_toggle_disable(void) -{ - u8 reg; - u8 val; - - switch (board) { - case oxp_mini_amd_a07: - reg = OXP_OLD_TURBO_SWITCH_REG; - val = OXP_OLD_TURBO_RETURN_VAL; - break; - case oxp_mini_amd_pro: - case aok_zoe_a1: - reg = OXP_TURBO_SWITCH_REG; - val = OXP_TURBO_RETURN_VAL; - break; - default: - return -EINVAL; - } - return write_to_ec(reg, val); -} - -/* Callbacks for turbo toggle attribute */ -static umode_t tt_toggle_is_visible(struct kobject *kobj, - struct attribute *attr, int n) -{ - switch (board) { - case aok_zoe_a1: - case oxp_mini_amd_a07: - case oxp_mini_amd_pro: - return attr->mode; - default: - break; - } - return 0; -} - -static ssize_t tt_toggle_store(struct device *dev, - struct device_attribute *attr, const char *buf, - size_t count) -{ - int rval; - bool value; - - rval = kstrtobool(buf, &value); - if (rval) - return rval; - - if (value) { - rval = tt_toggle_enable(); - } else { - rval = tt_toggle_disable(); - } - if (rval) - return rval; - - return count; -} - -static ssize_t tt_toggle_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - int retval; - u8 reg; - long val; - - switch (board) { - case oxp_mini_amd_a07: - reg = OXP_OLD_TURBO_SWITCH_REG; - break; - case oxp_mini_amd_pro: - case aok_zoe_a1: - reg = OXP_TURBO_SWITCH_REG; - break; - default: - return -EINVAL; - } - - retval = read_from_ec(reg, 1, &val); - if (retval) - return retval; - - return sysfs_emit(buf, "%d\n", !!val); -} - -static DEVICE_ATTR_RW(tt_toggle); - -/* PWM enable/disable functions */ -static int oxp_pwm_enable(void) -{ - return write_to_ec(OXP_SENSOR_PWM_ENABLE_REG, 0x01); -} - -static int oxp_pwm_disable(void) -{ - return write_to_ec(OXP_SENSOR_PWM_ENABLE_REG, 0x00); -} - -/* Callbacks for hwmon interface */ -static umode_t oxp_ec_hwmon_is_visible(const void *drvdata, - enum hwmon_sensor_types type, u32 attr, int channel) -{ - switch (type) { - case hwmon_fan: - return 0444; - case hwmon_pwm: - return 0644; - default: - return 0; - } -} - -static int oxp_platform_read(struct device *dev, enum hwmon_sensor_types type, - u32 attr, int channel, long *val) -{ - int ret; - - switch (type) { - case hwmon_fan: - switch (attr) { - case hwmon_fan_input: - return read_from_ec(OXP_SENSOR_FAN_REG, 2, val); - default: - break; - } - break; - case hwmon_pwm: - switch (attr) { - case hwmon_pwm_input: - ret = read_from_ec(OXP_SENSOR_PWM_REG, 1, val); - if (ret) - return ret; - switch (board) { - case aya_neo_2: - case aya_neo_air: - case aya_neo_air_plus_mendo: - case aya_neo_air_pro: - case aya_neo_geek: - case oxp_mini_amd: - case oxp_mini_amd_a07: - *val = (*val * 255) / 100; - break; - case oxp_mini_amd_pro: - case aok_zoe_a1: - default: - break; - } - return 0; - case hwmon_pwm_enable: - return read_from_ec(OXP_SENSOR_PWM_ENABLE_REG, 1, val); - default: - break; - } - break; - default: - break; - } - return -EOPNOTSUPP; -} - -static int oxp_platform_write(struct device *dev, enum hwmon_sensor_types type, - u32 attr, int channel, long val) -{ - switch (type) { - case hwmon_pwm: - switch (attr) { - case hwmon_pwm_enable: - if (val == 1) - return oxp_pwm_enable(); - else if (val == 0) - return oxp_pwm_disable(); - return -EINVAL; - case hwmon_pwm_input: - if (val < 0 || val > 255) - return -EINVAL; - switch (board) { - case aya_neo_2: - case aya_neo_air: - case aya_neo_air_plus_mendo: - case aya_neo_air_pro: - case aya_neo_geek: - case oxp_mini_amd: - case oxp_mini_amd_a07: - val = (val * 100) / 255; - break; - case aok_zoe_a1: - case oxp_mini_amd_pro: - default: - break; - } - return write_to_ec(OXP_SENSOR_PWM_REG, val); - default: - break; - } - break; - default: - break; - } - return -EOPNOTSUPP; -} - -/* Known sensors in the OXP EC controllers */ -static const struct hwmon_channel_info * const oxp_platform_sensors[] = { - HWMON_CHANNEL_INFO(fan, - HWMON_F_INPUT), - HWMON_CHANNEL_INFO(pwm, - HWMON_PWM_INPUT | HWMON_PWM_ENABLE), - NULL, -}; - -static struct attribute *oxp_ec_attrs[] = { - &dev_attr_tt_toggle.attr, - NULL -}; - -static struct attribute_group oxp_ec_attribute_group = { - .is_visible = tt_toggle_is_visible, - .attrs = oxp_ec_attrs, -}; - -static const struct attribute_group *oxp_ec_groups[] = { - &oxp_ec_attribute_group, - NULL -}; - -static const struct hwmon_ops oxp_ec_hwmon_ops = { - .is_visible = oxp_ec_hwmon_is_visible, - .read = oxp_platform_read, - .write = oxp_platform_write, -}; - -static const struct hwmon_chip_info oxp_ec_chip_info = { - .ops = &oxp_ec_hwmon_ops, - .info = oxp_platform_sensors, -}; - -/* Initialization logic */ -static int oxp_platform_probe(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct device *hwdev; - - hwdev = devm_hwmon_device_register_with_info(dev, "oxpec", NULL, - &oxp_ec_chip_info, NULL); - - return PTR_ERR_OR_ZERO(hwdev); -} - -static struct platform_driver oxp_platform_driver = { - .driver = { - .name = "oxp-platform", - .dev_groups = oxp_ec_groups, - }, - .probe = oxp_platform_probe, -}; - -static struct platform_device *oxp_platform_device; - -static int __init oxp_platform_init(void) -{ - const struct dmi_system_id *dmi_entry; - - /* - * Have to check for AMD processor here because DMI strings are the - * same between Intel and AMD boards, the only way to tell them apart - * is the CPU. - * Intel boards seem to have different EC registers and values to - * read/write. - */ - dmi_entry = dmi_first_match(dmi_table); - if (!dmi_entry || boot_cpu_data.x86_vendor != X86_VENDOR_AMD) - return -ENODEV; - - board = (enum oxp_board)(unsigned long)dmi_entry->driver_data; - - oxp_platform_device = - platform_create_bundle(&oxp_platform_driver, - oxp_platform_probe, NULL, 0, NULL, 0); - - return PTR_ERR_OR_ZERO(oxp_platform_device); -} - -static void __exit oxp_platform_exit(void) -{ - platform_device_unregister(oxp_platform_device); - platform_driver_unregister(&oxp_platform_driver); -} - -MODULE_DEVICE_TABLE(dmi, dmi_table); - -module_init(oxp_platform_init); -module_exit(oxp_platform_exit); - -MODULE_AUTHOR("Joaquín Ignacio Aramendía <samsagax@gmail.com>"); -MODULE_DESCRIPTION("Platform driver that handles EC sensors of OneXPlayer devices"); -MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/pc87360.c b/drivers/hwmon/pc87360.c index 9e9681b2e8c5..0f8aa6b42164 100644 --- a/drivers/hwmon/pc87360.c +++ b/drivers/hwmon/pc87360.c @@ -1315,7 +1315,7 @@ static void pc87360_init_device(struct platform_device *pdev, (reg & 0xC0) | 0x11); } - nr = data->innr < 11 ? data->innr : 11; + nr = min(data->innr, 11); for (i = 0; i < nr; i++) { reg = pc87360_read_value(data, LD_IN, i, PC87365_REG_IN_STATUS); @@ -1606,7 +1606,7 @@ static struct platform_driver pc87360_driver = { .name = DRIVER_NAME, }, .probe = pc87360_probe, - .remove_new = pc87360_remove, + .remove = pc87360_remove, }; /* diff --git a/drivers/hwmon/pc87427.c b/drivers/hwmon/pc87427.c index 7bca04eb4ee4..571402a89368 100644 --- a/drivers/hwmon/pc87427.c +++ b/drivers/hwmon/pc87427.c @@ -1129,7 +1129,7 @@ static struct platform_driver pc87427_driver = { .name = DRVNAME, }, .probe = pc87427_probe, - .remove_new = pc87427_remove, + .remove = pc87427_remove, }; static int __init pc87427_device_add(const struct pc87427_sio_data *sio_data) diff --git a/drivers/hwmon/pcf8591.c b/drivers/hwmon/pcf8591.c index 66c76b28c9e0..167d2fe4d543 100644 --- a/drivers/hwmon/pcf8591.c +++ b/drivers/hwmon/pcf8591.c @@ -285,7 +285,7 @@ static int pcf8591_read_channel(struct device *dev, int channel) } static const struct i2c_device_id pcf8591_id[] = { - { "pcf8591", 0 }, + { "pcf8591" }, { } }; MODULE_DEVICE_TABLE(i2c, pcf8591_id); diff --git a/drivers/hwmon/peci/cputemp.c b/drivers/hwmon/peci/cputemp.c index a812c15948d9..c7112dbf008b 100644 --- a/drivers/hwmon/peci/cputemp.c +++ b/drivers/hwmon/peci/cputemp.c @@ -360,10 +360,10 @@ static int init_core_mask(struct peci_cputemp *priv) int ret; /* Get the RESOLVED_CORES register value */ - switch (peci_dev->info.model) { - case INTEL_FAM6_ICELAKE_X: - case INTEL_FAM6_ICELAKE_D: - case INTEL_FAM6_SAPPHIRERAPIDS_X: + switch (peci_dev->info.x86_vfm) { + case INTEL_ICELAKE_X: + case INTEL_ICELAKE_D: + case INTEL_SAPPHIRERAPIDS_X: ret = peci_ep_pci_local_read(peci_dev, 0, reg->bus, reg->dev, reg->func, reg->offset + 4, &data); if (ret) @@ -607,4 +607,4 @@ MODULE_AUTHOR("Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>"); MODULE_AUTHOR("Iwona Winiarska <iwona.winiarska@intel.com>"); MODULE_DESCRIPTION("PECI cputemp driver"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PECI_CPU); +MODULE_IMPORT_NS("PECI_CPU"); diff --git a/drivers/hwmon/peci/dimmtemp.c b/drivers/hwmon/peci/dimmtemp.c index 4a72e9712408..fbe82d9852e0 100644 --- a/drivers/hwmon/peci/dimmtemp.c +++ b/drivers/hwmon/peci/dimmtemp.c @@ -127,8 +127,6 @@ static int update_thresholds(struct peci_dimmtemp *priv, int dimm_no) return 0; ret = priv->gen_info->read_thresholds(priv, dimm_order, chan_rank, &data); - if (ret == -ENODATA) /* Use default or previous value */ - return 0; if (ret) return ret; @@ -509,11 +507,11 @@ read_thresholds_icx(struct peci_dimmtemp *priv, int dimm_order, int chan_rank, u ret = peci_ep_pci_local_read(priv->peci_dev, 0, 13, 0, 2, 0xd4, ®_val); if (ret || !(reg_val & BIT(31))) - return -ENODATA; /* Use default or previous value */ + return -ENODATA; ret = peci_ep_pci_local_read(priv->peci_dev, 0, 13, 0, 2, 0xd0, ®_val); if (ret) - return -ENODATA; /* Use default or previous value */ + return -ENODATA; /* * Device 26, Offset 224e0: IMC 0 channel 0 -> rank 0 @@ -546,11 +544,11 @@ read_thresholds_spr(struct peci_dimmtemp *priv, int dimm_order, int chan_rank, u ret = peci_ep_pci_local_read(priv->peci_dev, 0, 30, 0, 2, 0xd4, ®_val); if (ret || !(reg_val & BIT(31))) - return -ENODATA; /* Use default or previous value */ + return -ENODATA; ret = peci_ep_pci_local_read(priv->peci_dev, 0, 30, 0, 2, 0xd0, ®_val); if (ret) - return -ENODATA; /* Use default or previous value */ + return -ENODATA; /* * Device 26, Offset 219a8: IMC 0 channel 0 -> rank 0 @@ -666,4 +664,4 @@ MODULE_AUTHOR("Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>"); MODULE_AUTHOR("Iwona Winiarska <iwona.winiarska@intel.com>"); MODULE_DESCRIPTION("PECI dimmtemp driver"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PECI_CPU); +MODULE_IMPORT_NS("PECI_CPU"); diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index 557ae0c414b0..c9b3c3149982 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -51,12 +51,22 @@ config SENSORS_ADM1275 tristate "Analog Devices ADM1275 and compatibles" help If you say yes here you get hardware monitoring support for Analog - Devices ADM1075, ADM1272, ADM1275, ADM1276, ADM1278, ADM1293, - and ADM1294 Hot-Swap Controller and Digital Power Monitors. + Devices ADM1075, ADM1272, ADM1273, ADM1275, ADM1276, ADM1278, ADM1281, + ADM1293, and ADM1294 Hot-Swap Controller and Digital Power Monitors. This driver can also be built as a module. If so, the module will be called adm1275. +config SENSORS_ADP1050 + tristate "Analog Devices ADP1050 digital controller for Power Supplies" + help + If you say yes here you get hardware monitoring support for Analog + Devices ADP1050 digital controller for isolated power supply with + PMBus interface. + + This driver can also be built as a module. If so, the module will + be called adp1050. + config SENSORS_BEL_PFE tristate "Bel PFE Compatible Power Supplies" help @@ -75,6 +85,15 @@ config SENSORS_BPA_RS600 This driver can also be built as a module. If so, the module will be called bpa-rs600. +config SENSORS_CRPS + tristate "Intel Common Redundant Power Supply" + help + If you say yes here you get hardware monitoring support for the Intel + Common Redundant Power Supply. + + This driver can also be built as a module. If so, the module will + be called crps. + config SENSORS_DELTA_AHE50DC_FAN tristate "Delta AHE-50DC fan control module" help @@ -114,6 +133,15 @@ config SENSORS_DPS920AB This driver can also be built as a module. If so, the module will be called dps920ab. +config SENSORS_INA233 + tristate "Texas Instruments INA233 and compatibles" + help + If you say yes here you get hardware monitoring support for Texas + Instruments INA233. + + This driver can also be built as a module. If so, the module will + be called ina233. + config SENSORS_INSPUR_IPSPS tristate "INSPUR Power System Power Supply" help @@ -214,9 +242,9 @@ config SENSORS_LTC2978_REGULATOR depends on SENSORS_LTC2978 && REGULATOR help If you say yes here you get regulator support for Linear Technology - LTC3880, LTC3883, LTC3884, LTC3886, LTC3887, LTC3889, LTC7880, - LTM4644, LTM4675, LTM4676, LTM4677, LTM4678, LTM4680, LTM4686, - and LTM4700. + LT7170, LT7171, LTC3880, LTC3883, LTC3884, LTC3886, LTC3887, LTC3889, + LTC7841, LTC7880, LTM4644, LTM4673, LTM4675, LTM4676, LTM4677, + LTM4678, LTM4680, LTM4686, and LTM4700. config SENSORS_LTC3815 tristate "Linear Technologies LTC3815" @@ -241,7 +269,7 @@ config SENSORS_MAX15301 tristate "Maxim MAX15301" help If you say yes here you get hardware monitoring support for Maxim - MAX15301, as well as for Flex BMR461. + MAX15301, MAX15303, as well as for Flex BMR461. This driver can also be built as a module. If so, the module will be called max15301. @@ -327,6 +355,15 @@ config SENSORS_MP2888 This driver can also be built as a module. If so, the module will be called mp2888. +config SENSORS_MP2891 + tristate "MPS MP2891" + help + If you say yes here you get hardware monitoring support for MPS + MP2891 Dual Loop Digital Multi-Phase Controller. + + This driver can also be built as a module. If so, the module will + be called mp2891. + config SENSORS_MP2975 tristate "MPS MP2975" help @@ -336,6 +373,15 @@ config SENSORS_MP2975 This driver can also be built as a module. If so, the module will be called mp2975. +config SENSORS_MP2993 + tristate "MPS MP2993" + help + If you say yes here you get hardware monitoring support for MPS + MP2993 Dual Loop Digital Multi-Phase Controller. + + This driver can also be built as a module. If so, the module will + be called mp2993. + config SENSORS_MP2975_REGULATOR depends on SENSORS_MP2975 && REGULATOR bool "Regulator support for MPS MP2975" @@ -352,6 +398,15 @@ config SENSORS_MP5023 This driver can also be built as a module. If so, the module will be called mp5023. +config SENSORS_MP5920 + tristate "MPS MP5920" + help + If you say yes here you get hardware monitoring support for Monolithic + MP5920. + + This driver can also be built as a module. If so, the module will + be called mp5920. + config SENSORS_MP5990 tristate "MPS MP5990" help @@ -361,6 +416,15 @@ config SENSORS_MP5990 This driver can also be built as a module. If so, the module will be called mp5990. +config SENSORS_MP9941 + tristate "MPS MP9941" + help + If you say yes here you get hardware monitoring support for MPS + MP9941. + + This driver can also be built as a module. If so, the module will + be called mp9941. + config SENSORS_MPQ7932_REGULATOR bool "Regulator support for MPQ7932" depends on SENSORS_MPQ7932 && REGULATOR @@ -464,6 +528,23 @@ config SENSORS_TDA38640_REGULATOR If you say yes here you get regulator support for Infineon TDA38640 as regulator. +config SENSORS_TPS25990 + tristate "TI TPS25990" + help + If you say yes here you get hardware monitoring support for TI + TPS25990. + + This driver can also be built as a module. If so, the module will + be called tps25990. + +config SENSORS_TPS25990_REGULATOR + bool "Regulator support for TPS25990 and compatibles" + depends on SENSORS_TPS25990 && REGULATOR + default SENSORS_TPS25990 + help + If you say yes here you get regulator support for Texas Instruments + TPS25990. + config SENSORS_TPS40422 tristate "TI TPS40422" help @@ -511,6 +592,15 @@ config SENSORS_UCD9200 This driver can also be built as a module. If so, the module will be called ucd9200. +config SENSORS_XDP710 + tristate "Infineon XDP710 family" + help + If you say yes here you get hardware monitoring support for Infineon + XDP710. + + This driver can also be built as a module. If so, the module will + be called xdp710. + config SENSORS_XDPE152 tristate "Infineon XDPE152 family" help diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile index f14ecf03ad77..56f128c4653e 100644 --- a/drivers/hwmon/pmbus/Makefile +++ b/drivers/hwmon/pmbus/Makefile @@ -8,12 +8,14 @@ obj-$(CONFIG_SENSORS_PMBUS) += pmbus.o obj-$(CONFIG_SENSORS_ACBEL_FSG032) += acbel-fsg032.o obj-$(CONFIG_SENSORS_ADM1266) += adm1266.o obj-$(CONFIG_SENSORS_ADM1275) += adm1275.o +obj-$(CONFIG_SENSORS_ADP1050) += adp1050.o obj-$(CONFIG_SENSORS_BEL_PFE) += bel-pfe.o obj-$(CONFIG_SENSORS_BPA_RS600) += bpa-rs600.o obj-$(CONFIG_SENSORS_DELTA_AHE50DC_FAN) += delta-ahe50dc-fan.o obj-$(CONFIG_SENSORS_FSP_3Y) += fsp-3y.o obj-$(CONFIG_SENSORS_IBM_CFFPS) += ibm-cffps.o obj-$(CONFIG_SENSORS_DPS920AB) += dps920ab.o +obj-$(CONFIG_SENSORS_INA233) += ina233.o obj-$(CONFIG_SENSORS_INSPUR_IPSPS) += inspur-ipsps.o obj-$(CONFIG_SENSORS_IR35221) += ir35221.o obj-$(CONFIG_SENSORS_IR36021) += ir36021.o @@ -35,9 +37,13 @@ obj-$(CONFIG_SENSORS_MAX34440) += max34440.o obj-$(CONFIG_SENSORS_MAX8688) += max8688.o obj-$(CONFIG_SENSORS_MP2856) += mp2856.o obj-$(CONFIG_SENSORS_MP2888) += mp2888.o +obj-$(CONFIG_SENSORS_MP2891) += mp2891.o obj-$(CONFIG_SENSORS_MP2975) += mp2975.o +obj-$(CONFIG_SENSORS_MP2993) += mp2993.o obj-$(CONFIG_SENSORS_MP5023) += mp5023.o +obj-$(CONFIG_SENSORS_MP5920) += mp5920.o obj-$(CONFIG_SENSORS_MP5990) += mp5990.o +obj-$(CONFIG_SENSORS_MP9941) += mp9941.o obj-$(CONFIG_SENSORS_MPQ7932) += mpq7932.o obj-$(CONFIG_SENSORS_MPQ8785) += mpq8785.o obj-$(CONFIG_SENSORS_PLI1209BC) += pli1209bc.o @@ -46,12 +52,15 @@ obj-$(CONFIG_SENSORS_PXE1610) += pxe1610.o obj-$(CONFIG_SENSORS_Q54SJ108A2) += q54sj108a2.o obj-$(CONFIG_SENSORS_STPDDC60) += stpddc60.o obj-$(CONFIG_SENSORS_TDA38640) += tda38640.o +obj-$(CONFIG_SENSORS_TPS25990) += tps25990.o obj-$(CONFIG_SENSORS_TPS40422) += tps40422.o obj-$(CONFIG_SENSORS_TPS53679) += tps53679.o obj-$(CONFIG_SENSORS_TPS546D24) += tps546d24.o obj-$(CONFIG_SENSORS_UCD9000) += ucd9000.o obj-$(CONFIG_SENSORS_UCD9200) += ucd9200.o +obj-$(CONFIG_SENSORS_XDP710) += xdp710.o obj-$(CONFIG_SENSORS_XDPE122) += xdpe12284.o obj-$(CONFIG_SENSORS_XDPE152) += xdpe152c4.o obj-$(CONFIG_SENSORS_ZL6100) += zl6100.o obj-$(CONFIG_SENSORS_PIM4328) += pim4328.o +obj-$(CONFIG_SENSORS_CRPS) += crps.o diff --git a/drivers/hwmon/pmbus/acbel-fsg032.c b/drivers/hwmon/pmbus/acbel-fsg032.c index e0c55fd8f3a6..9f07fb4abaff 100644 --- a/drivers/hwmon/pmbus/acbel-fsg032.c +++ b/drivers/hwmon/pmbus/acbel-fsg032.c @@ -120,4 +120,4 @@ module_i2c_driver(acbel_fsg032_driver); MODULE_AUTHOR("Lakshmi Yadlapati"); MODULE_DESCRIPTION("PMBus driver for AcBel Power System power supplies"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/adm1266.c b/drivers/hwmon/pmbus/adm1266.c index ed0a7b9fae4b..d90f8f80be8e 100644 --- a/drivers/hwmon/pmbus/adm1266.c +++ b/drivers/hwmon/pmbus/adm1266.c @@ -490,7 +490,7 @@ static const struct of_device_id adm1266_of_match[] = { MODULE_DEVICE_TABLE(of, adm1266_of_match); static const struct i2c_device_id adm1266_id[] = { - { "adm1266", 0 }, + { "adm1266" }, { } }; MODULE_DEVICE_TABLE(i2c, adm1266_id); @@ -509,4 +509,4 @@ module_i2c_driver(adm1266_driver); MODULE_AUTHOR("Alexandru Tachici <alexandru.tachici@analog.com>"); MODULE_DESCRIPTION("PMBus driver for Analog Devices ADM1266"); MODULE_LICENSE("GPL v2"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/adm1275.c b/drivers/hwmon/pmbus/adm1275.c index e2c61d6fa521..7d175baa5de2 100644 --- a/drivers/hwmon/pmbus/adm1275.c +++ b/drivers/hwmon/pmbus/adm1275.c @@ -18,7 +18,7 @@ #include <linux/log2.h> #include "pmbus.h" -enum chips { adm1075, adm1272, adm1275, adm1276, adm1278, adm1293, adm1294 }; +enum chips { adm1075, adm1272, adm1273, adm1275, adm1276, adm1278, adm1281, adm1293, adm1294 }; #define ADM1275_MFR_STATUS_IOUT_WARN2 BIT(0) #define ADM1293_MFR_STATUS_VAUX_UV_WARN BIT(5) @@ -479,9 +479,11 @@ static int adm1275_read_byte_data(struct i2c_client *client, int page, int reg) static const struct i2c_device_id adm1275_id[] = { { "adm1075", adm1075 }, { "adm1272", adm1272 }, + { "adm1273", adm1273 }, { "adm1275", adm1275 }, { "adm1276", adm1276 }, { "adm1278", adm1278 }, + { "adm1281", adm1281 }, { "adm1293", adm1293 }, { "adm1294", adm1294 }, { } @@ -554,7 +556,8 @@ static int adm1275_probe(struct i2c_client *client) "Device mismatch: Configured %s, detected %s\n", client->name, mid->name); - if (mid->driver_data == adm1272 || mid->driver_data == adm1278 || + if (mid->driver_data == adm1272 || mid->driver_data == adm1273 || + mid->driver_data == adm1278 || mid->driver_data == adm1281 || mid->driver_data == adm1293 || mid->driver_data == adm1294) config_read_fn = i2c_smbus_read_word_data; else @@ -628,6 +631,7 @@ static int adm1275_probe(struct i2c_client *client) PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT; break; case adm1272: + case adm1273: data->have_vout = true; data->have_pin_max = true; data->have_temp_max = true; @@ -703,6 +707,7 @@ static int adm1275_probe(struct i2c_client *client) PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT; break; case adm1278: + case adm1281: data->have_vout = true; data->have_pin_max = true; data->have_temp_max = true; @@ -863,4 +868,4 @@ module_i2c_driver(adm1275_driver); MODULE_AUTHOR("Guenter Roeck"); MODULE_DESCRIPTION("PMBus driver for Analog Devices ADM1275 and compatibles"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/adp1050.c b/drivers/hwmon/pmbus/adp1050.c new file mode 100644 index 000000000000..ef46c880b168 --- /dev/null +++ b/drivers/hwmon/pmbus/adp1050.c @@ -0,0 +1,56 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Hardware monitoring driver for Analog Devices ADP1050 + * + * Copyright (C) 2024 Analog Devices, Inc. + */ +#include <linux/bits.h> +#include <linux/i2c.h> +#include <linux/mod_devicetable.h> +#include <linux/module.h> + +#include "pmbus.h" + +static struct pmbus_driver_info adp1050_info = { + .pages = 1, + .format[PSC_VOLTAGE_IN] = linear, + .format[PSC_VOLTAGE_OUT] = linear, + .format[PSC_CURRENT_IN] = linear, + .format[PSC_TEMPERATURE] = linear, + .func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT + | PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT + | PMBUS_HAVE_IIN | PMBUS_HAVE_TEMP + | PMBUS_HAVE_STATUS_TEMP, +}; + +static int adp1050_probe(struct i2c_client *client) +{ + return pmbus_do_probe(client, &adp1050_info); +} + +static const struct i2c_device_id adp1050_id[] = { + {"adp1050"}, + {} +}; +MODULE_DEVICE_TABLE(i2c, adp1050_id); + +static const struct of_device_id adp1050_of_match[] = { + { .compatible = "adi,adp1050"}, + {} +}; +MODULE_DEVICE_TABLE(of, adp1050_of_match); + +static struct i2c_driver adp1050_driver = { + .driver = { + .name = "adp1050", + .of_match_table = adp1050_of_match, + }, + .probe = adp1050_probe, + .id_table = adp1050_id, +}; +module_i2c_driver(adp1050_driver); + +MODULE_AUTHOR("Radu Sabau <radu.sabau@analog.com>"); +MODULE_DESCRIPTION("Analog Devices ADP1050 HWMON PMBus Driver"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/bel-pfe.c b/drivers/hwmon/pmbus/bel-pfe.c index 7c5f4b10a7c1..ddf9d9a2958c 100644 --- a/drivers/hwmon/pmbus/bel-pfe.c +++ b/drivers/hwmon/pmbus/bel-pfe.c @@ -129,4 +129,4 @@ module_i2c_driver(pfe_pmbus_driver); MODULE_AUTHOR("Tao Ren <rentao.bupt@gmail.com>"); MODULE_DESCRIPTION("PMBus driver for BEL PFE Family Power Supplies"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/bpa-rs600.c b/drivers/hwmon/pmbus/bpa-rs600.c index 0dce26c35556..6c3875ba37a0 100644 --- a/drivers/hwmon/pmbus/bpa-rs600.c +++ b/drivers/hwmon/pmbus/bpa-rs600.c @@ -205,4 +205,4 @@ module_i2c_driver(bpa_rs600_driver); MODULE_AUTHOR("Chris Packham"); MODULE_DESCRIPTION("PMBus driver for BluTek BPA-RS600"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/crps.c b/drivers/hwmon/pmbus/crps.c new file mode 100644 index 000000000000..164b33fed312 --- /dev/null +++ b/drivers/hwmon/pmbus/crps.c @@ -0,0 +1,74 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright 2024 IBM Corp. + */ + +#include <linux/i2c.h> +#include <linux/of.h> +#include <linux/pmbus.h> + +#include "pmbus.h" + +static const struct i2c_device_id crps_id[] = { + { "intel_crps185" }, + {} +}; +MODULE_DEVICE_TABLE(i2c, crps_id); + +static struct pmbus_driver_info crps_info = { + .pages = 1, + /* PSU uses default linear data format. */ + .func[0] = PMBUS_HAVE_PIN | PMBUS_HAVE_IOUT | + PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_IIN | + PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT | + PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | + PMBUS_HAVE_TEMP | PMBUS_HAVE_TEMP2 | + PMBUS_HAVE_STATUS_TEMP | + PMBUS_HAVE_FAN12 | PMBUS_HAVE_STATUS_FAN12, +}; + +static int crps_probe(struct i2c_client *client) +{ + int rc; + struct device *dev = &client->dev; + char buf[I2C_SMBUS_BLOCK_MAX + 2] = { 0 }; + + rc = i2c_smbus_read_block_data(client, PMBUS_MFR_MODEL, buf); + if (rc < 0) + return dev_err_probe(dev, rc, "Failed to read PMBUS_MFR_MODEL\n"); + + if (rc != 7 || strncmp(buf, "03NK260", 7)) { + buf[rc] = '\0'; + return dev_err_probe(dev, -ENODEV, "Model '%s' not supported\n", buf); + } + + rc = pmbus_do_probe(client, &crps_info); + if (rc) + return dev_err_probe(dev, rc, "Failed to probe\n"); + + return 0; +} + +static const struct of_device_id crps_of_match[] = { + { + .compatible = "intel,crps185", + }, + {} +}; +MODULE_DEVICE_TABLE(of, crps_of_match); + +static struct i2c_driver crps_driver = { + .driver = { + .name = "crps", + .of_match_table = crps_of_match, + }, + .probe = crps_probe, + .id_table = crps_id, +}; + +module_i2c_driver(crps_driver); + +MODULE_AUTHOR("Ninad Palsule"); +MODULE_DESCRIPTION("PMBus driver for Intel Common Redundant power supplies"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/delta-ahe50dc-fan.c b/drivers/hwmon/pmbus/delta-ahe50dc-fan.c index 4dd3b6686d6a..3850eaea75da 100644 --- a/drivers/hwmon/pmbus/delta-ahe50dc-fan.c +++ b/drivers/hwmon/pmbus/delta-ahe50dc-fan.c @@ -127,4 +127,4 @@ module_i2c_driver(ahe50dc_fan_driver); MODULE_AUTHOR("Zev Weiss <zev@bewilderbeest.net>"); MODULE_DESCRIPTION("Driver for Delta AHE-50DC power shelf fan control module"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/dps920ab.c b/drivers/hwmon/pmbus/dps920ab.c index 04e0d598a6e5..325111a955e6 100644 --- a/drivers/hwmon/pmbus/dps920ab.c +++ b/drivers/hwmon/pmbus/dps920ab.c @@ -190,12 +190,19 @@ static const struct of_device_id __maybe_unused dps920ab_of_match[] = { MODULE_DEVICE_TABLE(of, dps920ab_of_match); +static const struct i2c_device_id dps920ab_device_id[] = { + { "dps920ab" }, + {} +}; +MODULE_DEVICE_TABLE(i2c, dps920ab_device_id); + static struct i2c_driver dps920ab_driver = { .driver = { .name = "dps920ab", .of_match_table = of_match_ptr(dps920ab_of_match), }, .probe = dps920ab_probe, + .id_table = dps920ab_device_id, }; module_i2c_driver(dps920ab_driver); @@ -203,4 +210,4 @@ module_i2c_driver(dps920ab_driver); MODULE_AUTHOR("Robert Marko <robert.marko@sartura.hr>"); MODULE_DESCRIPTION("PMBus driver for Delta DPS920AB PSU"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/fsp-3y.c b/drivers/hwmon/pmbus/fsp-3y.c index 72a7c261ef06..a4dc09e2ef75 100644 --- a/drivers/hwmon/pmbus/fsp-3y.c +++ b/drivers/hwmon/pmbus/fsp-3y.c @@ -291,4 +291,4 @@ module_i2c_driver(fsp3y_driver); MODULE_AUTHOR("Václav Kubernát"); MODULE_DESCRIPTION("PMBus driver for FSP/3Y-Power power supplies"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/ibm-cffps.c b/drivers/hwmon/pmbus/ibm-cffps.c index 1ba4c5e95820..d05ef7a968a9 100644 --- a/drivers/hwmon/pmbus/ibm-cffps.c +++ b/drivers/hwmon/pmbus/ibm-cffps.c @@ -614,4 +614,4 @@ module_i2c_driver(ibm_cffps_driver); MODULE_AUTHOR("Eddie James"); MODULE_DESCRIPTION("PMBus driver for IBM Common Form Factor power supplies"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/ina233.c b/drivers/hwmon/pmbus/ina233.c new file mode 100644 index 000000000000..dde1e1678394 --- /dev/null +++ b/drivers/hwmon/pmbus/ina233.c @@ -0,0 +1,191 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Hardware monitoring driver for ina233 + * + * Copyright (c) 2025 Leo Yang + */ + +#include <linux/err.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include "pmbus.h" + +#define MFR_READ_VSHUNT 0xd1 +#define MFR_CALIBRATION 0xd4 + +#define INA233_MAX_CURRENT_DEFAULT 32768000 /* uA */ +#define INA233_RSHUNT_DEFAULT 2000 /* uOhm */ + +#define MAX_M_VAL 32767 + +static void calculate_coef(int *m, int *R, u32 current_lsb, int power_coef) +{ + u64 scaled_m; + int scale_factor = 0; + int scale_coef = 1; + + /* + * 1000000 from Current_LSB A->uA . + * scale_coef is for scaling up to minimize rounding errors, + * If there is no decimal information, no need to scale. + */ + if (1000000 % current_lsb) { + /* Scaling to keep integer precision */ + scale_factor = -3; + scale_coef = 1000; + } + + /* + * Unit Conversion (Current_LSB A->uA) and use scaling(scale_factor) + * to keep integer precision. + * Formulae referenced from spec. + */ + scaled_m = div64_u64(1000000 * scale_coef, (u64)current_lsb * power_coef); + + /* Maximize while keeping it bounded.*/ + while (scaled_m > MAX_M_VAL) { + scaled_m = div_u64(scaled_m, 10); + scale_factor++; + } + /* Scale up only if fractional part exists. */ + while (scaled_m * 10 < MAX_M_VAL && scale_coef != 1) { + scaled_m *= 10; + scale_factor--; + } + + *m = scaled_m; + *R = scale_factor; +} + +static int ina233_read_word_data(struct i2c_client *client, int page, + int phase, int reg) +{ + int ret; + + switch (reg) { + case PMBUS_VIRT_READ_VMON: + ret = pmbus_read_word_data(client, 0, 0xff, MFR_READ_VSHUNT); + + /* Adjust returned value to match VIN coefficients */ + /* VIN: 1.25 mV VSHUNT: 2.5 uV LSB */ + ret = DIV_ROUND_CLOSEST(ret * 25, 12500); + break; + default: + ret = -ENODATA; + break; + } + return ret; +} + +static int ina233_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + int ret, m, R; + u32 rshunt; + u32 max_current; + u32 current_lsb; + u16 calibration; + struct pmbus_driver_info *info; + + info = devm_kzalloc(dev, sizeof(struct pmbus_driver_info), + GFP_KERNEL); + if (!info) + return -ENOMEM; + + info->pages = 1; + info->format[PSC_VOLTAGE_IN] = direct; + info->format[PSC_VOLTAGE_OUT] = direct; + info->format[PSC_CURRENT_OUT] = direct; + info->format[PSC_POWER] = direct; + info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_INPUT + | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT + | PMBUS_HAVE_POUT + | PMBUS_HAVE_VMON | PMBUS_HAVE_STATUS_VMON; + info->m[PSC_VOLTAGE_IN] = 8; + info->R[PSC_VOLTAGE_IN] = 2; + info->m[PSC_VOLTAGE_OUT] = 8; + info->R[PSC_VOLTAGE_OUT] = 2; + info->read_word_data = ina233_read_word_data; + + /* If INA233 skips current/power, shunt-resistor and current-lsb aren't needed. */ + /* read rshunt value (uOhm) */ + ret = device_property_read_u32(dev, "shunt-resistor", &rshunt); + if (ret) { + if (ret != -EINVAL) + return dev_err_probe(dev, ret, "Shunt resistor property read fail.\n"); + rshunt = INA233_RSHUNT_DEFAULT; + } + if (!rshunt) + return dev_err_probe(dev, -EINVAL, + "Shunt resistor cannot be zero.\n"); + + /* read Maximum expected current value (uA) */ + ret = device_property_read_u32(dev, "ti,maximum-expected-current-microamp", &max_current); + if (ret) { + if (ret != -EINVAL) + return dev_err_probe(dev, ret, + "Maximum expected current property read fail.\n"); + max_current = INA233_MAX_CURRENT_DEFAULT; + } + if (max_current < 32768) + return dev_err_probe(dev, -EINVAL, + "Maximum expected current cannot less then 32768.\n"); + + /* Calculate Current_LSB according to the spec formula */ + current_lsb = max_current / 32768; + + /* calculate current coefficient */ + calculate_coef(&m, &R, current_lsb, 1); + info->m[PSC_CURRENT_OUT] = m; + info->R[PSC_CURRENT_OUT] = R; + + /* calculate power coefficient */ + calculate_coef(&m, &R, current_lsb, 25); + info->m[PSC_POWER] = m; + info->R[PSC_POWER] = R; + + /* write MFR_CALIBRATION register, Apply formula from spec with unit scaling. */ + calibration = div64_u64(5120000000ULL, (u64)rshunt * current_lsb); + if (calibration > 0x7FFF) + return dev_err_probe(dev, -EINVAL, + "Product of Current_LSB %u and shunt resistor %u too small, MFR_CALIBRATION reg exceeds 0x7FFF.\n", + current_lsb, rshunt); + ret = i2c_smbus_write_word_data(client, MFR_CALIBRATION, calibration); + if (ret < 0) + return dev_err_probe(dev, ret, "Unable to write calibration.\n"); + + dev_dbg(dev, "power monitor %s (Rshunt = %u uOhm, Current_LSB = %u uA/bit)\n", + client->name, rshunt, current_lsb); + + return pmbus_do_probe(client, info); +} + +static const struct i2c_device_id ina233_id[] = { + {"ina233", 0}, + {} +}; +MODULE_DEVICE_TABLE(i2c, ina233_id); + +static const struct of_device_id __maybe_unused ina233_of_match[] = { + { .compatible = "ti,ina233" }, + {} +}; +MODULE_DEVICE_TABLE(of, ina233_of_match); + +static struct i2c_driver ina233_driver = { + .driver = { + .name = "ina233", + .of_match_table = of_match_ptr(ina233_of_match), + }, + .probe = ina233_probe, + .id_table = ina233_id, +}; + +module_i2c_driver(ina233_driver); + +MODULE_AUTHOR("Leo Yang <leo.yang.sy0@gmail.com>"); +MODULE_DESCRIPTION("PMBus driver for INA233 and compatible chips"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/inspur-ipsps.c b/drivers/hwmon/pmbus/inspur-ipsps.c index dfeae68b5e52..074e0f164ee1 100644 --- a/drivers/hwmon/pmbus/inspur-ipsps.c +++ b/drivers/hwmon/pmbus/inspur-ipsps.c @@ -197,7 +197,7 @@ static int ipsps_probe(struct i2c_client *client) } static const struct i2c_device_id ipsps_id[] = { - { "ipsps1", 0 }, + { "ipsps1" }, {} }; MODULE_DEVICE_TABLE(i2c, ipsps_id); @@ -224,4 +224,4 @@ module_i2c_driver(ipsps_driver); MODULE_AUTHOR("John Wang"); MODULE_DESCRIPTION("PMBus driver for Inspur Power System power supplies"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/ir35221.c b/drivers/hwmon/pmbus/ir35221.c index e3ee5c1bd967..46d8f334d49a 100644 --- a/drivers/hwmon/pmbus/ir35221.c +++ b/drivers/hwmon/pmbus/ir35221.c @@ -126,7 +126,7 @@ static int ir35221_probe(struct i2c_client *client) } static const struct i2c_device_id ir35221_id[] = { - {"ir35221", 0}, + {"ir35221"}, {} }; @@ -145,4 +145,4 @@ module_i2c_driver(ir35221_driver); MODULE_AUTHOR("Samuel Mendoza-Jonas <sam@mendozajonas.com"); MODULE_DESCRIPTION("PMBus driver for IR35221"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/ir36021.c b/drivers/hwmon/pmbus/ir36021.c index a263afeb8ac1..34ce15fc708b 100644 --- a/drivers/hwmon/pmbus/ir36021.c +++ b/drivers/hwmon/pmbus/ir36021.c @@ -51,7 +51,7 @@ static int ir36021_probe(struct i2c_client *client) } static const struct i2c_device_id ir36021_id[] = { - { "ir36021", 0 }, + { "ir36021" }, {}, }; MODULE_DEVICE_TABLE(i2c, ir36021_id); @@ -76,4 +76,4 @@ module_i2c_driver(ir36021_driver); MODULE_AUTHOR("Chris Packham <chris.packham@alliedtelesis.co.nz>"); MODULE_DESCRIPTION("PMBus driver for Infineon IR36021"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/ir38064.c b/drivers/hwmon/pmbus/ir38064.c index 69e18cb468f6..7b4188e8bf48 100644 --- a/drivers/hwmon/pmbus/ir38064.c +++ b/drivers/hwmon/pmbus/ir38064.c @@ -53,10 +53,10 @@ static int ir38064_probe(struct i2c_client *client) } static const struct i2c_device_id ir38064_id[] = { - {"ir38060", 0}, - {"ir38064", 0}, - {"ir38164", 0}, - {"ir38263", 0}, + {"ir38060"}, + {"ir38064"}, + {"ir38164"}, + {"ir38263"}, {} }; @@ -87,4 +87,4 @@ module_i2c_driver(ir38064_driver); MODULE_AUTHOR("Maxim Sloyko <maxims@google.com>"); MODULE_DESCRIPTION("PMBus driver for Infineon IR38064 and compatible chips"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/irps5401.c b/drivers/hwmon/pmbus/irps5401.c index 146d32a35a7c..43674c64841d 100644 --- a/drivers/hwmon/pmbus/irps5401.c +++ b/drivers/hwmon/pmbus/irps5401.c @@ -44,7 +44,7 @@ static int irps5401_probe(struct i2c_client *client) } static const struct i2c_device_id irps5401_id[] = { - {"irps5401", 0}, + {"irps5401"}, {} }; @@ -63,4 +63,4 @@ module_i2c_driver(irps5401_driver); MODULE_AUTHOR("Robert Hancock"); MODULE_DESCRIPTION("PMBus driver for Infineon IRPS5401"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/isl68137.c b/drivers/hwmon/pmbus/isl68137.c index 7e53fb1d5ea3..2af921039309 100644 --- a/drivers/hwmon/pmbus/isl68137.c +++ b/drivers/hwmon/pmbus/isl68137.c @@ -13,6 +13,7 @@ #include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> +#include <linux/of.h> #include <linux/string.h> #include <linux/sysfs.h> @@ -20,6 +21,7 @@ #define ISL68137_VOUT_AVS 0x30 #define RAA_DMPVR2_READ_VMON 0xc8 +#define MAX_CHANNELS 4 enum chips { isl68137, @@ -72,6 +74,17 @@ enum variants { raa_dmpvr2_hv, }; +struct isl68137_channel { + u32 vout_voltage_divider[2]; +}; + +struct isl68137_data { + struct pmbus_driver_info info; + struct isl68137_channel channel[MAX_CHANNELS]; +}; + +#define to_isl68137_data(x) container_of(x, struct isl68137_data, info) + static const struct i2c_device_id raa_dmpvr_id[]; static ssize_t isl68137_avs_enable_show_page(struct i2c_client *client, @@ -163,13 +176,32 @@ static const struct attribute_group *isl68137_attribute_groups[] = { static int raa_dmpvr2_read_word_data(struct i2c_client *client, int page, int phase, int reg) { + const struct pmbus_driver_info *info = pmbus_get_driver_info(client); + const struct isl68137_data *data = to_isl68137_data(info); int ret; + u64 temp; switch (reg) { case PMBUS_VIRT_READ_VMON: ret = pmbus_read_word_data(client, page, phase, RAA_DMPVR2_READ_VMON); break; + case PMBUS_READ_POUT: + case PMBUS_READ_VOUT: + /* + * In cases where a voltage divider is attached to the target + * rail between Vout and the Vsense pin, both Vout and Pout + * should be scaled by the voltage divider scaling factor. + * I.e. Vout = Vsense * Rtotal / Rout + */ + ret = pmbus_read_word_data(client, page, phase, reg); + if (ret > 0) { + temp = DIV_U64_ROUND_CLOSEST((u64)ret * + data->channel[page].vout_voltage_divider[1], + data->channel[page].vout_voltage_divider[0]); + ret = clamp_val(temp, 0, 0xffff); + } + break; default: ret = -ENODATA; break; @@ -178,6 +210,40 @@ static int raa_dmpvr2_read_word_data(struct i2c_client *client, int page, return ret; } +static int raa_dmpvr2_write_word_data(struct i2c_client *client, int page, + int reg, u16 word) +{ + const struct pmbus_driver_info *info = pmbus_get_driver_info(client); + const struct isl68137_data *data = to_isl68137_data(info); + int ret; + u64 temp; + + switch (reg) { + case PMBUS_VOUT_MAX: + case PMBUS_VOUT_MARGIN_HIGH: + case PMBUS_VOUT_MARGIN_LOW: + case PMBUS_VOUT_OV_FAULT_LIMIT: + case PMBUS_VOUT_UV_FAULT_LIMIT: + case PMBUS_VOUT_COMMAND: + /* + * In cases where a voltage divider is attached to the target + * rail between Vout and the Vsense pin, Vout related PMBus + * commands should be scaled based on the expected voltage + * at the Vsense pin. + * I.e. Vsense = Vout * Rout / Rtotal + */ + temp = DIV_U64_ROUND_CLOSEST((u64)word * + data->channel[page].vout_voltage_divider[0], + data->channel[page].vout_voltage_divider[1]); + ret = clamp_val(temp, 0, 0xffff); + break; + default: + ret = -ENODATA; + break; + } + return ret; +} + static struct pmbus_driver_info raa_dmpvr_info = { .pages = 3, .format[PSC_VOLTAGE_IN] = direct, @@ -220,14 +286,90 @@ static struct pmbus_driver_info raa_dmpvr_info = { | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_POUT, }; +static int isl68137_probe_child_from_dt(struct device *dev, + struct device_node *child, + struct isl68137_data *data) +{ + u32 channel, rout, rtotal; + int err; + + err = of_property_read_u32(child, "reg", &channel); + if (err) { + dev_err(dev, "missing reg property of %pOFn\n", child); + return err; + } + if (channel >= data->info.pages) { + dev_err(dev, "invalid reg %d of %pOFn\n", channel, child); + return -EINVAL; + } + + err = of_property_read_u32_array(child, "vout-voltage-divider", + data->channel[channel].vout_voltage_divider, + ARRAY_SIZE(data->channel[channel].vout_voltage_divider)); + if (err && err != -EINVAL) { + dev_err(dev, + "malformed vout-voltage-divider value for channel %d\n", + channel); + return err; + } + + rout = data->channel[channel].vout_voltage_divider[0]; + rtotal = data->channel[channel].vout_voltage_divider[1]; + if (rout == 0) { + dev_err(dev, + "Voltage divider output resistance must be greater than 0\n"); + return -EINVAL; + } + if (rtotal < rout) { + dev_err(dev, + "Voltage divider total resistance is less than output resistance\n"); + return -EINVAL; + } + + return 0; +} + +static int isl68137_probe_from_dt(struct device *dev, + struct isl68137_data *data) +{ + const struct device_node *np = dev->of_node; + struct device_node *child; + int err; + + for_each_child_of_node(np, child) { + if (strcmp(child->name, "channel")) + continue; + + err = isl68137_probe_child_from_dt(dev, child, data); + if (err) + return err; + } + + return 0; +} + static int isl68137_probe(struct i2c_client *client) { + struct device *dev = &client->dev; struct pmbus_driver_info *info; + struct isl68137_data *data; + int i, err; - info = devm_kzalloc(&client->dev, sizeof(*info), GFP_KERNEL); - if (!info) + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); + if (!data) return -ENOMEM; - memcpy(info, &raa_dmpvr_info, sizeof(*info)); + + /* + * Initialize all voltage dividers to Rout=1 and Rtotal=1 to simplify + * logic in PMBus word read/write functions + */ + for (i = 0; i < MAX_CHANNELS; i++) + memset(data->channel[i].vout_voltage_divider, + 1, + sizeof(data->channel[i].vout_voltage_divider)); + + memcpy(&data->info, &raa_dmpvr_info, sizeof(data->info)); + info = &data->info; switch (i2c_match_id(raa_dmpvr_id, client)->driver_data) { case raa_dmpvr1_2rail: @@ -237,11 +379,14 @@ static int isl68137_probe(struct i2c_client *client) info->func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_POUT; + info->read_word_data = raa_dmpvr2_read_word_data; + info->write_word_data = raa_dmpvr2_write_word_data; info->groups = isl68137_attribute_groups; break; case raa_dmpvr2_1rail: info->pages = 1; info->read_word_data = raa_dmpvr2_read_word_data; + info->write_word_data = raa_dmpvr2_write_word_data; break; case raa_dmpvr2_2rail_nontc: info->func[0] &= ~PMBUS_HAVE_TEMP3; @@ -250,9 +395,11 @@ static int isl68137_probe(struct i2c_client *client) case raa_dmpvr2_2rail: info->pages = 2; info->read_word_data = raa_dmpvr2_read_word_data; + info->write_word_data = raa_dmpvr2_write_word_data; break; case raa_dmpvr2_3rail: info->read_word_data = raa_dmpvr2_read_word_data; + info->write_word_data = raa_dmpvr2_write_word_data; break; case raa_dmpvr2_hv: info->pages = 1; @@ -263,11 +410,16 @@ static int isl68137_probe(struct i2c_client *client) info->m[PSC_POWER] = 2; info->R[PSC_POWER] = -1; info->read_word_data = raa_dmpvr2_read_word_data; + info->write_word_data = raa_dmpvr2_write_word_data; break; default: return -ENODEV; } + err = isl68137_probe_from_dt(dev, data); + if (err) + return err; + return pmbus_do_probe(client, info); } @@ -318,11 +470,59 @@ static const struct i2c_device_id raa_dmpvr_id[] = { MODULE_DEVICE_TABLE(i2c, raa_dmpvr_id); +static const struct of_device_id isl68137_of_match[] = { + { .compatible = "isil,isl68137", .data = (void *)raa_dmpvr1_2rail }, + { .compatible = "renesas,isl68220", .data = (void *)raa_dmpvr2_2rail }, + { .compatible = "renesas,isl68221", .data = (void *)raa_dmpvr2_3rail }, + { .compatible = "renesas,isl68222", .data = (void *)raa_dmpvr2_2rail }, + { .compatible = "renesas,isl68223", .data = (void *)raa_dmpvr2_2rail }, + { .compatible = "renesas,isl68224", .data = (void *)raa_dmpvr2_3rail }, + { .compatible = "renesas,isl68225", .data = (void *)raa_dmpvr2_2rail }, + { .compatible = "renesas,isl68226", .data = (void *)raa_dmpvr2_3rail }, + { .compatible = "renesas,isl68227", .data = (void *)raa_dmpvr2_1rail }, + { .compatible = "renesas,isl68229", .data = (void *)raa_dmpvr2_3rail }, + { .compatible = "renesas,isl68233", .data = (void *)raa_dmpvr2_2rail }, + { .compatible = "renesas,isl68239", .data = (void *)raa_dmpvr2_3rail }, + + { .compatible = "renesas,isl69222", .data = (void *)raa_dmpvr2_2rail }, + { .compatible = "renesas,isl69223", .data = (void *)raa_dmpvr2_3rail }, + { .compatible = "renesas,isl69224", .data = (void *)raa_dmpvr2_2rail }, + { .compatible = "renesas,isl69225", .data = (void *)raa_dmpvr2_2rail }, + { .compatible = "renesas,isl69227", .data = (void *)raa_dmpvr2_3rail }, + { .compatible = "renesas,isl69228", .data = (void *)raa_dmpvr2_3rail }, + { .compatible = "renesas,isl69234", .data = (void *)raa_dmpvr2_2rail }, + { .compatible = "renesas,isl69236", .data = (void *)raa_dmpvr2_2rail }, + { .compatible = "renesas,isl69239", .data = (void *)raa_dmpvr2_3rail }, + { .compatible = "renesas,isl69242", .data = (void *)raa_dmpvr2_2rail }, + { .compatible = "renesas,isl69243", .data = (void *)raa_dmpvr2_1rail }, + { .compatible = "renesas,isl69247", .data = (void *)raa_dmpvr2_2rail }, + { .compatible = "renesas,isl69248", .data = (void *)raa_dmpvr2_2rail }, + { .compatible = "renesas,isl69254", .data = (void *)raa_dmpvr2_2rail }, + { .compatible = "renesas,isl69255", .data = (void *)raa_dmpvr2_2rail }, + { .compatible = "renesas,isl69256", .data = (void *)raa_dmpvr2_2rail }, + { .compatible = "renesas,isl69259", .data = (void *)raa_dmpvr2_2rail }, + { .compatible = "isil,isl69260", .data = (void *)raa_dmpvr2_2rail }, + { .compatible = "renesas,isl69268", .data = (void *)raa_dmpvr2_2rail }, + { .compatible = "isil,isl69269", .data = (void *)raa_dmpvr2_3rail }, + { .compatible = "renesas,isl69298", .data = (void *)raa_dmpvr2_2rail }, + + { .compatible = "renesas,raa228000", .data = (void *)raa_dmpvr2_hv }, + { .compatible = "renesas,raa228004", .data = (void *)raa_dmpvr2_hv }, + { .compatible = "renesas,raa228006", .data = (void *)raa_dmpvr2_hv }, + { .compatible = "renesas,raa228228", .data = (void *)raa_dmpvr2_2rail_nontc }, + { .compatible = "renesas,raa229001", .data = (void *)raa_dmpvr2_2rail }, + { .compatible = "renesas,raa229004", .data = (void *)raa_dmpvr2_2rail }, + { }, +}; + +MODULE_DEVICE_TABLE(of, isl68137_of_match); + /* This is the driver that will be inserted */ static struct i2c_driver isl68137_driver = { .driver = { - .name = "isl68137", - }, + .name = "isl68137", + .of_match_table = isl68137_of_match, + }, .probe = isl68137_probe, .id_table = raa_dmpvr_id, }; @@ -332,4 +532,4 @@ module_i2c_driver(isl68137_driver); MODULE_AUTHOR("Maxim Sloyko <maxims@google.com>"); MODULE_DESCRIPTION("PMBus driver for Renesas digital multiphase voltage regulators"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/lm25066.c b/drivers/hwmon/pmbus/lm25066.c index cfffa4cdc0df..40b0dda32ea6 100644 --- a/drivers/hwmon/pmbus/lm25066.c +++ b/drivers/hwmon/pmbus/lm25066.c @@ -17,7 +17,7 @@ #include <linux/of.h> #include "pmbus.h" -enum chips { lm25056 = 1, lm25066, lm5064, lm5066, lm5066i }; +enum chips { lm25056, lm25066, lm5064, lm5066, lm5066i }; #define LM25066_READ_VAUX 0xd0 #define LM25066_MFR_READ_IIN 0xd1 @@ -569,4 +569,4 @@ module_i2c_driver(lm25066_driver); MODULE_AUTHOR("Guenter Roeck"); MODULE_DESCRIPTION("PMBus driver for LM25066 and compatible chips"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/lt7182s.c b/drivers/hwmon/pmbus/lt7182s.c index 28afc5f15ae8..9d6d50f39bd6 100644 --- a/drivers/hwmon/pmbus/lt7182s.c +++ b/drivers/hwmon/pmbus/lt7182s.c @@ -168,7 +168,7 @@ static int lt7182s_probe(struct i2c_client *client) } static const struct i2c_device_id lt7182s_id[] = { - { "lt7182s", 0 }, + { "lt7182s" }, {} }; MODULE_DEVICE_TABLE(i2c, lt7182s_id); @@ -192,4 +192,4 @@ module_i2c_driver(lt7182s_driver); MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>"); MODULE_DESCRIPTION("PMBus driver for Analog Devices LT7182S"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/ltc2978.c b/drivers/hwmon/pmbus/ltc2978.c index 73a86f4d6472..8f5be520a15d 100644 --- a/drivers/hwmon/pmbus/ltc2978.c +++ b/drivers/hwmon/pmbus/ltc2978.c @@ -23,10 +23,11 @@ enum chips { /* Managers */ ltc2972, ltc2974, ltc2975, ltc2977, ltc2978, ltc2979, ltc2980, /* Controllers */ - ltc3880, ltc3882, ltc3883, ltc3884, ltc3886, ltc3887, ltc3889, ltc7132, ltc7880, + lt7170, lt7171, ltc3880, ltc3882, ltc3883, ltc3884, ltc3886, ltc3887, + ltc3889, ltc7132, ltc7841, ltc7880, /* Modules */ - ltm2987, ltm4664, ltm4675, ltm4676, ltm4677, ltm4678, ltm4680, ltm4686, - ltm4700, + ltm2987, ltm4664, ltm4673, ltm4675, ltm4676, ltm4677, ltm4678, ltm4680, + ltm4686, ltm4700, }; /* Common for all chips */ @@ -50,7 +51,7 @@ enum chips { #define LTC3880_MFR_CLEAR_PEAKS 0xe3 #define LTC3880_MFR_TEMPERATURE2_PEAK 0xf4 -/* LTC3883, LTC3884, LTC3886, LTC3889, LTC7132, LTC7880 */ +/* LTC3883, LTC3884, LTC3886, LTC3889, LTC7132, LTC7841 and LTC7880 only */ #define LTC3883_MFR_IIN_PEAK 0xe1 /* LTC2975 only */ @@ -61,6 +62,7 @@ enum chips { #define LTC2978_ID_MASK 0xfff0 +#define LT7170_ID 0x1C10 #define LTC2972_ID 0x0310 #define LTC2974_ID 0x0210 #define LTC2975_ID 0x0220 @@ -80,10 +82,13 @@ enum chips { #define LTC3887_ID 0x4700 #define LTC3889_ID 0x4900 #define LTC7132_ID 0x4CE0 +#define LTC7841_ID 0x40D0 #define LTC7880_ID 0x49E0 #define LTM2987_ID_A 0x8010 /* A/B for two die IDs */ #define LTM2987_ID_B 0x8020 #define LTM4664_ID 0x4120 +#define LTM4673_ID_REV1 0x0230 +#define LTM4673_ID 0x4480 #define LTM4675_ID 0x47a0 #define LTM4676_ID_REV1 0x4400 #define LTM4676_ID_REV2 0x4480 @@ -533,6 +538,8 @@ static int ltc2978_write_word_data(struct i2c_client *client, int page, } static const struct i2c_device_id ltc2978_id[] = { + {"lt7170", lt7170}, + {"lt7171", lt7171}, {"ltc2972", ltc2972}, {"ltc2974", ltc2974}, {"ltc2975", ltc2975}, @@ -548,9 +555,11 @@ static const struct i2c_device_id ltc2978_id[] = { {"ltc3887", ltc3887}, {"ltc3889", ltc3889}, {"ltc7132", ltc7132}, + {"ltc7841", ltc7841}, {"ltc7880", ltc7880}, {"ltm2987", ltm2987}, {"ltm4664", ltm4664}, + {"ltm4673", ltm4673}, {"ltm4675", ltm4675}, {"ltm4676", ltm4676}, {"ltm4677", ltm4677}, @@ -609,7 +618,7 @@ static int ltc2978_get_id(struct i2c_client *client) ret = i2c_smbus_read_block_data(client, PMBUS_MFR_ID, buf); if (ret < 0) return ret; - if (ret < 3 || strncmp(buf, "LTC", 3)) + if (ret < 3 || (strncmp(buf, "LTC", 3) && strncmp(buf, "ADI", 3))) return -ENODEV; ret = i2c_smbus_read_block_data(client, PMBUS_MFR_MODEL, buf); @@ -624,6 +633,25 @@ static int ltc2978_get_id(struct i2c_client *client) chip_id &= LTC2978_ID_MASK; + if (chip_id == LT7170_ID) { + u8 buf[I2C_SMBUS_BLOCK_MAX]; + int ret; + + ret = i2c_smbus_read_i2c_block_data(client, PMBUS_IC_DEVICE_ID, + sizeof(buf), buf); + if (ret < 0) + return ret; + + if (!strncmp(buf + 1, "LT7170", 6) || + !strncmp(buf + 1, "LT7170-1", 8)) + return lt7170; + if (!strncmp(buf + 1, "LT7171", 6) || + !strncmp(buf + 1, "LT7171-1", 8)) + return lt7171; + + return -ENODEV; + } + if (chip_id == LTC2972_ID) return ltc2972; else if (chip_id == LTC2974_ID) @@ -654,12 +682,16 @@ static int ltc2978_get_id(struct i2c_client *client) return ltc3889; else if (chip_id == LTC7132_ID) return ltc7132; + else if (chip_id == LTC7841_ID) + return ltc7841; else if (chip_id == LTC7880_ID) return ltc7880; else if (chip_id == LTM2987_ID_A || chip_id == LTM2987_ID_B) return ltm2987; else if (chip_id == LTM4664_ID) return ltm4664; + else if (chip_id == LTM4673_ID || chip_id == LTM4673_ID_REV1) + return ltm4673; else if (chip_id == LTM4675_ID) return ltm4675; else if (chip_id == LTM4676_ID_REV1 || chip_id == LTM4676_ID_REV2 || @@ -731,6 +763,20 @@ static int ltc2978_probe(struct i2c_client *client) data->temp2_max = 0x7c00; switch (data->id) { + case lt7170: + case lt7171: + data->features |= FEAT_CLEAR_PEAKS | FEAT_NEEDS_POLLING; + info->read_word_data = ltc3883_read_word_data; + info->pages = LTC3883_NUM_PAGES; + info->format[PSC_VOLTAGE_IN] = ieee754; + info->format[PSC_VOLTAGE_OUT] = ieee754; + info->format[PSC_CURRENT_OUT] = ieee754; + info->format[PSC_TEMPERATURE] = ieee754; + info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT + | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT + | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT + | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP; + break; case ltc2972: info->read_word_data = ltc2975_read_word_data; info->pages = LTC2972_NUM_PAGES; @@ -854,6 +900,31 @@ static int ltc2978_probe(struct i2c_client *client) | PMBUS_HAVE_POUT | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP; break; + case ltc7841: + data->features |= FEAT_CLEAR_PEAKS; + info->read_word_data = ltc3883_read_word_data; + info->pages = LTC3883_NUM_PAGES; + info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_IIN + | PMBUS_HAVE_STATUS_INPUT + | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT + | PMBUS_HAVE_IOUT + | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP; + break; + case ltm4673: + data->features |= FEAT_NEEDS_POLLING; + info->read_word_data = ltc2975_read_word_data; + info->pages = LTC2974_NUM_PAGES; + info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT + | PMBUS_HAVE_TEMP2; + for (i = 0; i < info->pages; i++) { + info->func[i] |= PMBUS_HAVE_IIN + | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT + | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT + | PMBUS_HAVE_PIN + | PMBUS_HAVE_POUT + | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP; + } + break; default: return -ENODEV; } @@ -892,6 +963,8 @@ static int ltc2978_probe(struct i2c_client *client) #ifdef CONFIG_OF static const struct of_device_id ltc2978_of_match[] = { + { .compatible = "lltc,lt7170" }, + { .compatible = "lltc,lt7171" }, { .compatible = "lltc,ltc2972" }, { .compatible = "lltc,ltc2974" }, { .compatible = "lltc,ltc2975" }, @@ -907,9 +980,11 @@ static const struct of_device_id ltc2978_of_match[] = { { .compatible = "lltc,ltc3887" }, { .compatible = "lltc,ltc3889" }, { .compatible = "lltc,ltc7132" }, + { .compatible = "lltc,ltc7841" }, { .compatible = "lltc,ltc7880" }, { .compatible = "lltc,ltm2987" }, { .compatible = "lltc,ltm4664" }, + { .compatible = "lltc,ltm4673" }, { .compatible = "lltc,ltm4675" }, { .compatible = "lltc,ltm4676" }, { .compatible = "lltc,ltm4677" }, @@ -936,4 +1011,4 @@ module_i2c_driver(ltc2978_driver); MODULE_AUTHOR("Guenter Roeck"); MODULE_DESCRIPTION("PMBus driver for LTC2978 and compatible chips"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/ltc3815.c b/drivers/hwmon/pmbus/ltc3815.c index f2023b17aa8d..824c16a75e2c 100644 --- a/drivers/hwmon/pmbus/ltc3815.c +++ b/drivers/hwmon/pmbus/ltc3815.c @@ -143,7 +143,7 @@ static int ltc3815_write_word_data(struct i2c_client *client, int page, } static const struct i2c_device_id ltc3815_id[] = { - {"ltc3815", 0}, + {"ltc3815"}, { } }; MODULE_DEVICE_TABLE(i2c, ltc3815_id); @@ -208,4 +208,4 @@ module_i2c_driver(ltc3815_driver); MODULE_AUTHOR("Guenter Roeck"); MODULE_DESCRIPTION("PMBus driver for LTC3815"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/ltc4286.c b/drivers/hwmon/pmbus/ltc4286.c index 9e7ceeb7e789..aabd0bcdfeee 100644 --- a/drivers/hwmon/pmbus/ltc4286.c +++ b/drivers/hwmon/pmbus/ltc4286.c @@ -58,8 +58,8 @@ static struct pmbus_driver_info ltc4286_info = { }; static const struct i2c_device_id ltc4286_id[] = { - { "ltc4286", 0 }, - { "ltc4287", 1 }, + { "ltc4286", }, + { "ltc4287", }, {} }; MODULE_DEVICE_TABLE(i2c, ltc4286_id); diff --git a/drivers/hwmon/pmbus/max15301.c b/drivers/hwmon/pmbus/max15301.c index 2cfaa62aedd6..d5810b88ea8d 100644 --- a/drivers/hwmon/pmbus/max15301.c +++ b/drivers/hwmon/pmbus/max15301.c @@ -23,16 +23,15 @@ #include "pmbus.h" static const struct i2c_device_id max15301_id[] = { - {"bmr461", 0}, - {"max15301", 0}, + { "bmr461" }, + { "max15301" }, + { "max15303" }, {} }; MODULE_DEVICE_TABLE(i2c, max15301_id); struct max15301_data { int id; - ktime_t access; /* Chip access time */ - int delay; /* Delay between chip accesses in us */ struct pmbus_driver_info info; }; @@ -55,89 +54,6 @@ static struct max15301_data max15301_data = { } }; -/* This chip needs a delay between accesses */ -static inline void max15301_wait(const struct max15301_data *data) -{ - if (data->delay) { - s64 delta = ktime_us_delta(ktime_get(), data->access); - - if (delta < data->delay) - udelay(data->delay - delta); - } -} - -static int max15301_read_word_data(struct i2c_client *client, int page, - int phase, int reg) -{ - const struct pmbus_driver_info *info = pmbus_get_driver_info(client); - struct max15301_data *data = to_max15301_data(info); - int ret; - - if (page > 0) - return -ENXIO; - - if (reg >= PMBUS_VIRT_BASE) - return -ENXIO; - - max15301_wait(data); - ret = pmbus_read_word_data(client, page, phase, reg); - data->access = ktime_get(); - - return ret; -} - -static int max15301_read_byte_data(struct i2c_client *client, int page, int reg) -{ - const struct pmbus_driver_info *info = pmbus_get_driver_info(client); - struct max15301_data *data = to_max15301_data(info); - int ret; - - if (page > 0) - return -ENXIO; - - max15301_wait(data); - ret = pmbus_read_byte_data(client, page, reg); - data->access = ktime_get(); - - return ret; -} - -static int max15301_write_word_data(struct i2c_client *client, int page, int reg, - u16 word) -{ - const struct pmbus_driver_info *info = pmbus_get_driver_info(client); - struct max15301_data *data = to_max15301_data(info); - int ret; - - if (page > 0) - return -ENXIO; - - if (reg >= PMBUS_VIRT_BASE) - return -ENXIO; - - max15301_wait(data); - ret = pmbus_write_word_data(client, page, reg, word); - data->access = ktime_get(); - - return ret; -} - -static int max15301_write_byte(struct i2c_client *client, int page, u8 value) -{ - const struct pmbus_driver_info *info = pmbus_get_driver_info(client); - struct max15301_data *data = to_max15301_data(info); - int ret; - - if (page > 0) - return -ENXIO; - - max15301_wait(data); - ret = pmbus_write_byte(client, page, value); - data->access = ktime_get(); - - return ret; -} - static int max15301_probe(struct i2c_client *client) { int status; @@ -164,12 +80,7 @@ static int max15301_probe(struct i2c_client *client) return -ENODEV; } - max15301_data.delay = delay; - - info->read_byte_data = max15301_read_byte_data; - info->read_word_data = max15301_read_word_data; - info->write_byte = max15301_write_byte; - info->write_word_data = max15301_write_word_data; + info->access_delay = delay; return pmbus_do_probe(client, info); } @@ -187,4 +98,4 @@ module_i2c_driver(max15301_driver); MODULE_AUTHOR("Erik Rosen <erik.rosen@metormote.com>"); MODULE_DESCRIPTION("PMBus driver for Maxim MAX15301"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/max16064.c b/drivers/hwmon/pmbus/max16064.c index a573a0ab9e48..eb84915c2a83 100644 --- a/drivers/hwmon/pmbus/max16064.c +++ b/drivers/hwmon/pmbus/max16064.c @@ -91,7 +91,7 @@ static int max16064_probe(struct i2c_client *client) } static const struct i2c_device_id max16064_id[] = { - {"max16064", 0}, + {"max16064"}, {} }; @@ -111,4 +111,4 @@ module_i2c_driver(max16064_driver); MODULE_AUTHOR("Guenter Roeck"); MODULE_DESCRIPTION("PMBus driver for Maxim MAX16064"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/max16601.c b/drivers/hwmon/pmbus/max16601.c index 3ab219504600..d696e506aafb 100644 --- a/drivers/hwmon/pmbus/max16601.c +++ b/drivers/hwmon/pmbus/max16601.c @@ -366,4 +366,4 @@ module_i2c_driver(max16601_driver); MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>"); MODULE_DESCRIPTION("PMBus driver for Maxim MAX16601"); MODULE_LICENSE("GPL v2"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/max20730.c b/drivers/hwmon/pmbus/max20730.c index d56ec24764fd..95869d198ecf 100644 --- a/drivers/hwmon/pmbus/max20730.c +++ b/drivers/hwmon/pmbus/max20730.c @@ -787,4 +787,4 @@ module_i2c_driver(max20730_driver); MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>"); MODULE_DESCRIPTION("PMBus driver for Maxim MAX20710 / MAX20730 / MAX20734 / MAX20743"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/max20751.c b/drivers/hwmon/pmbus/max20751.c index 6ebd71cd081b..ac8c43122133 100644 --- a/drivers/hwmon/pmbus/max20751.c +++ b/drivers/hwmon/pmbus/max20751.c @@ -32,7 +32,7 @@ static int max20751_probe(struct i2c_client *client) } static const struct i2c_device_id max20751_id[] = { - {"max20751", 0}, + {"max20751"}, {} }; @@ -51,4 +51,4 @@ module_i2c_driver(max20751_driver); MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>"); MODULE_DESCRIPTION("PMBus driver for Maxim MAX20751"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/max31785.c b/drivers/hwmon/pmbus/max31785.c index 5d13bbfc8f47..1f94d38a1637 100644 --- a/drivers/hwmon/pmbus/max31785.c +++ b/drivers/hwmon/pmbus/max31785.c @@ -518,9 +518,9 @@ static int max31785_probe(struct i2c_client *client) } static const struct i2c_device_id max31785_id[] = { - { "max31785", 0 }, - { "max31785a", 0 }, - { "max31785b", 0 }, + { "max31785" }, + { "max31785a" }, + { "max31785b" }, { }, }; @@ -549,4 +549,4 @@ module_i2c_driver(max31785_driver); MODULE_AUTHOR("Andrew Jeffery <andrew@aj.id.au>"); MODULE_DESCRIPTION("PMBus driver for the Maxim MAX31785"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/max34440.c b/drivers/hwmon/pmbus/max34440.c index fe7f6b1b0985..c9dda33831ff 100644 --- a/drivers/hwmon/pmbus/max34440.c +++ b/drivers/hwmon/pmbus/max34440.c @@ -529,4 +529,4 @@ module_i2c_driver(max34440_driver); MODULE_AUTHOR("Guenter Roeck"); MODULE_DESCRIPTION("PMBus driver for Maxim MAX34440/MAX34441"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/max8688.c b/drivers/hwmon/pmbus/max8688.c index ae8573fdf5ba..b3a2a7492bbf 100644 --- a/drivers/hwmon/pmbus/max8688.c +++ b/drivers/hwmon/pmbus/max8688.c @@ -171,7 +171,7 @@ static int max8688_probe(struct i2c_client *client) } static const struct i2c_device_id max8688_id[] = { - {"max8688", 0}, + {"max8688"}, { } }; @@ -191,4 +191,4 @@ module_i2c_driver(max8688_driver); MODULE_AUTHOR("Guenter Roeck"); MODULE_DESCRIPTION("PMBus driver for Maxim MAX8688"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/mp2856.c b/drivers/hwmon/pmbus/mp2856.c index 6969350f5d7d..e83c70a3583f 100644 --- a/drivers/hwmon/pmbus/mp2856.c +++ b/drivers/hwmon/pmbus/mp2856.c @@ -46,7 +46,7 @@ #define MP2856_PAGE_NUM 2 -enum chips { mp2856 = 1, mp2857 }; +enum chips { mp2856, mp2857 }; static const int mp2856_max_phases[][MP2856_PAGE_NUM] = { [mp2856] = { MP2856_MAX_PHASE_RAIL1, MP2856_MAX_PHASE_RAIL2 }, @@ -66,7 +66,6 @@ struct mp2856_data { int vout_format[MP2856_PAGE_NUM]; int curr_sense_gain[MP2856_PAGE_NUM]; int max_phases[MP2856_PAGE_NUM]; - enum chips chip_id; }; #define to_mp2856_data(x) container_of(x, struct mp2856_data, info) @@ -397,6 +396,7 @@ static int mp2856_probe(struct i2c_client *client) { struct pmbus_driver_info *info; struct mp2856_data *data; + enum chips chip_id; int ret; data = devm_kzalloc(&client->dev, sizeof(struct mp2856_data), @@ -404,9 +404,9 @@ static int mp2856_probe(struct i2c_client *client) if (!data) return -ENOMEM; - data->chip_id = (enum chips)(uintptr_t)i2c_get_match_data(client); + chip_id = (kernel_ulong_t)i2c_get_match_data(client); - memcpy(data->max_phases, mp2856_max_phases[data->chip_id], + memcpy(data->max_phases, mp2856_max_phases[chip_id], sizeof(data->max_phases)); memcpy(&data->info, &mp2856_info, sizeof(*info)); @@ -463,4 +463,4 @@ module_i2c_driver(mp2856_driver); MODULE_AUTHOR("Peter Yin <peter.yin@quantatw.com>"); MODULE_DESCRIPTION("PMBus driver for MPS MP2856/MP2857 device"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/mp2888.c b/drivers/hwmon/pmbus/mp2888.c index 50662ed8e3d5..772a623ca7d0 100644 --- a/drivers/hwmon/pmbus/mp2888.c +++ b/drivers/hwmon/pmbus/mp2888.c @@ -378,7 +378,7 @@ static int mp2888_probe(struct i2c_client *client) } static const struct i2c_device_id mp2888_id[] = { - {"mp2888", 0}, + {"mp2888"}, {} }; @@ -404,4 +404,4 @@ module_i2c_driver(mp2888_driver); MODULE_AUTHOR("Vadim Pasternak <vadimp@nvidia.com>"); MODULE_DESCRIPTION("PMBus driver for MPS MP2888 device"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/mp2891.c b/drivers/hwmon/pmbus/mp2891.c new file mode 100644 index 000000000000..f8f4c91ec23c --- /dev/null +++ b/drivers/hwmon/pmbus/mp2891.c @@ -0,0 +1,600 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Hardware monitoring driver for MPS Multi-phase Digital VR Controllers(MP2891) + */ + +#include <linux/bitfield.h> +#include <linux/i2c.h> +#include <linux/module.h> +#include <linux/of_device.h> +#include "pmbus.h" + +/* + * Vender specific registers, the register MFR_SVI3_IOUT_PRT(0x65), + * MFR_VOUT_LOOP_CTRL(0xBD), READ_PIN_EST(0x94)and READ_IIN_EST(0x95) + * redefine the standard PMBUS register. The MFR_SVI3_IOUT_PRT(0x65) + * is used to identify the iout scale and the MFR_VOUT_LOOP_CTRL(0xBD) + * is used to identify the vout scale. The READ_PIN_EST(0x94) is used + * to read input power per rail. The MP2891 does not have standard + * READ_IIN register(0x89), the iin telemetry can be obtained through + * the vendor redefined register READ_IIN_EST(0x95). + */ +#define MFR_VOUT_LOOP_CTRL 0xBD +#define READ_PIN_EST 0x94 +#define READ_IIN_EST 0x95 +#define MFR_SVI3_IOUT_PRT 0x65 + +#define MP2891_TEMP_LIMIT_OFFSET 40 +#define MP2891_PIN_LIMIT_UINT 2 +#define MP2891_IOUT_LIMIT_UINT 8 +#define MP2891_IOUT_SCALE_DIV 32 +#define MP2891_VOUT_SCALE_DIV 100 +#define MP2891_OVUV_DELTA_SCALE 50 +#define MP2891_OV_LIMIT_SCALE 20 +#define MP2891_UV_LIMIT_SCALE 5 + +#define MP2891_PAGE_NUM 2 + +#define MP2891_RAIL1_FUNC (PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | \ + PMBUS_HAVE_IOUT | PMBUS_HAVE_TEMP | \ + PMBUS_HAVE_POUT | PMBUS_HAVE_PIN | \ + PMBUS_HAVE_IIN | PMBUS_HAVE_STATUS_VOUT | \ + PMBUS_HAVE_STATUS_IOUT | \ + PMBUS_HAVE_STATUS_INPUT | \ + PMBUS_HAVE_STATUS_TEMP) + +#define MP2891_RAIL2_FUNC (PMBUS_HAVE_VOUT | PMBUS_HAVE_IOUT | \ + PMBUS_HAVE_TEMP | PMBUS_HAVE_POUT | \ + PMBUS_HAVE_PIN | PMBUS_HAVE_IIN | \ + PMBUS_HAVE_STATUS_VOUT | \ + PMBUS_HAVE_STATUS_IOUT | \ + PMBUS_HAVE_STATUS_INPUT | \ + PMBUS_HAVE_STATUS_TEMP) + +struct mp2891_data { + struct pmbus_driver_info info; + int vout_scale[MP2891_PAGE_NUM]; + int iout_scale[MP2891_PAGE_NUM]; +}; + +#define to_mp2891_data(x) container_of(x, struct mp2891_data, info) + +/* Converts a LINEAR11 value to DIRECT format */ +static u16 mp2891_reg2data_linear11(u16 word) +{ + s16 exponent; + s32 mantissa; + s64 val; + + exponent = ((s16)word) >> 11; + mantissa = ((s16)((word & 0x7ff) << 5)) >> 5; + val = mantissa; + + if (exponent >= 0) + val <<= exponent; + else + val >>= -exponent; + + return val; +} + +static int +mp2891_identify_vout_scale(struct i2c_client *client, struct pmbus_driver_info *info, + int page) +{ + struct mp2891_data *data = to_mp2891_data(info); + int ret; + + ret = i2c_smbus_write_byte_data(client, PMBUS_PAGE, page); + if (ret < 0) + return ret; + + ret = i2c_smbus_read_word_data(client, MFR_VOUT_LOOP_CTRL); + if (ret < 0) + return ret; + + /* + * The output voltage is equal to the READ_VOUT(0x8B) register value multiplied + * by vout_scale. + * Obtain vout scale from the register MFR_VOUT_LOOP_CTRL, bits 15-14,bit 13. + * If MFR_VOUT_LOOP_CTRL[13] = 1, the vout scale is below: + * 2.5mV/LSB + * If MFR_VOUT_LOOP_CTRL[13] = 0, the vout scale is decided by + * MFR_VOUT_LOOP_CTRL[15:14]: + * 00b - 6.25mV/LSB, 01b - 5mV/LSB, 10b - 2mV/LSB, 11b - 1mV + */ + if (ret & GENMASK(13, 13)) { + data->vout_scale[page] = 250; + } else { + ret = FIELD_GET(GENMASK(15, 14), ret); + if (ret == 0) + data->vout_scale[page] = 625; + else if (ret == 1) + data->vout_scale[page] = 500; + else if (ret == 2) + data->vout_scale[page] = 200; + else + data->vout_scale[page] = 100; + } + + return 0; +} + +static int +mp2891_identify_iout_scale(struct i2c_client *client, struct pmbus_driver_info *info, + int page) +{ + struct mp2891_data *data = to_mp2891_data(info); + int ret; + + ret = i2c_smbus_write_byte_data(client, PMBUS_PAGE, page); + if (ret < 0) + return ret; + + ret = i2c_smbus_read_word_data(client, MFR_SVI3_IOUT_PRT); + if (ret < 0) + return ret; + + /* + * The output current is equal to the READ_IOUT(0x8C) register value + * multiplied by iout_scale. + * Obtain iout_scale from the register MFR_SVI3_IOUT_PRT[2:0]. + * The value is selected as below: + * 000b - 1A/LSB, 001b - (1/32)A/LSB, 010b - (1/16)A/LSB, + * 011b - (1/8)A/LSB, 100b - (1/4)A/LSB, 101b - (1/2)A/LSB + * 110b - 1A/LSB, 111b - 2A/LSB + */ + switch (ret & GENMASK(2, 0)) { + case 0: + case 6: + data->iout_scale[page] = 32; + break; + case 1: + data->iout_scale[page] = 1; + break; + case 2: + data->iout_scale[page] = 2; + break; + case 3: + data->iout_scale[page] = 4; + break; + case 4: + data->iout_scale[page] = 8; + break; + case 5: + data->iout_scale[page] = 16; + break; + default: + data->iout_scale[page] = 64; + break; + } + + return 0; +} + +static int mp2891_identify(struct i2c_client *client, struct pmbus_driver_info *info) +{ + int ret; + + /* Identify vout scale for rail 1. */ + ret = mp2891_identify_vout_scale(client, info, 0); + if (ret < 0) + return ret; + + /* Identify vout scale for rail 2. */ + ret = mp2891_identify_vout_scale(client, info, 1); + if (ret < 0) + return ret; + + /* Identify iout scale for rail 1. */ + ret = mp2891_identify_iout_scale(client, info, 0); + if (ret < 0) + return ret; + + /* Identify iout scale for rail 2. */ + return mp2891_identify_iout_scale(client, info, 1); +} + +static int mp2891_read_byte_data(struct i2c_client *client, int page, int reg) +{ + int ret; + + switch (reg) { + case PMBUS_VOUT_MODE: + /* + * The MP2891 does not follow standard PMBus protocol completely, the + * PMBUS_VOUT_MODE(0x20) in MP2891 is reserved and 0x00 is always + * returned when the register is read. But the calculation of vout in + * this driver is based on direct format. As a result, the format of + * vout is enforced to direct. + */ + ret = PB_VOUT_MODE_DIRECT; + break; + default: + ret = -ENODATA; + break; + } + + return ret; +} + +static int mp2891_read_word_data(struct i2c_client *client, int page, + int phase, int reg) +{ + const struct pmbus_driver_info *info = pmbus_get_driver_info(client); + struct mp2891_data *data = to_mp2891_data(info); + int ret; + + switch (reg) { + case PMBUS_READ_VIN: + ret = pmbus_read_word_data(client, page, phase, reg); + if (ret < 0) + return ret; + + ret = ret & GENMASK(9, 0); + break; + case PMBUS_READ_IIN: + /* + * The MP2891 does not have standard PMBUS_READ_IIN register(0x89), + * the iin telemetry can be obtained through the vender redefined + * register READ_IIN_EST(0x95). The MP2891 PMBUS_READ_IIN register + * is linear11 format, But the pout scale is set to 1A/Lsb(using + * r/m/b scale). As a result, the iin read from MP2891 should be + * calculated to A, then return the result to pmbus core. + */ + ret = pmbus_read_word_data(client, page, phase, READ_IIN_EST); + if (ret < 0) + return ret; + + ret = mp2891_reg2data_linear11(ret); + break; + case PMBUS_READ_PIN: + /* + * The MP2891 has standard PMBUS_READ_PIN register(0x97), but this + * is not used to read the input power per rail. The input power + * per rail is read through the vender redefined register + * READ_PIN_EST(0x94). The MP2891 PMBUS_READ_PIN register is linear11 + * format, But the pout scale is set to 1W/Lsb(using r/m/b scale). + * As a result, the pin read from MP2891 should be calculated to W, + * then return the result to pmbus core. + */ + ret = pmbus_read_word_data(client, page, phase, READ_PIN_EST); + if (ret < 0) + return ret; + + ret = mp2891_reg2data_linear11(ret); + break; + case PMBUS_READ_POUT: + /* + * The MP2891 PMBUS_READ_POUT register is linear11 format, and the + * exponent is not a constant value. But the pout scale is set to + * 1W/Lsb(using r/m/b scale). As a result, the pout read from MP2891 + * should be calculated to W, then return the result to pmbus core. + */ + ret = pmbus_read_word_data(client, page, phase, reg); + if (ret < 0) + return ret; + + ret = mp2891_reg2data_linear11(ret); + break; + case PMBUS_READ_VOUT: + case PMBUS_VOUT_UV_WARN_LIMIT: + ret = pmbus_read_word_data(client, page, phase, reg); + if (ret < 0) + return ret; + + ret = DIV_ROUND_CLOSEST(ret * data->vout_scale[page], MP2891_VOUT_SCALE_DIV); + break; + case PMBUS_READ_IOUT: + ret = pmbus_read_word_data(client, page, phase, reg); + if (ret < 0) + return ret; + + ret = DIV_ROUND_CLOSEST((ret & GENMASK(10, 0)) * data->iout_scale[page], + MP2891_IOUT_SCALE_DIV); + break; + case PMBUS_OT_FAULT_LIMIT: + case PMBUS_OT_WARN_LIMIT: + /* + * The scale of MP2891 PMBUS_OT_FAULT_LIMIT and PMBUS_OT_WARN_LIMIT + * is 1°C/LSB and they have 40°C offset. + */ + ret = pmbus_read_word_data(client, page, phase, reg); + if (ret < 0) + return ret; + + ret = (ret & GENMASK(7, 0)) - MP2891_TEMP_LIMIT_OFFSET; + break; + case PMBUS_VIN_OV_FAULT_LIMIT: + /* + * The MP2891 PMBUS_VIN_OV_FAULT_LIMIT scale is 125mV/Lsb. + * but the vin scale is set to 31.25mV/Lsb(using r/m/b scale). + * As a result, the limit value should be multiplied by 4. + */ + ret = pmbus_read_word_data(client, page, phase, reg); + if (ret < 0) + return ret; + + ret = (ret & GENMASK(7, 0)) * 4; + break; + case PMBUS_VOUT_UV_FAULT_LIMIT: + ret = pmbus_read_word_data(client, page, phase, reg); + if (ret < 0) + return ret; + + if (FIELD_GET(GENMASK(11, 8), ret)) + ret = FIELD_GET(GENMASK(7, 0), ret) * MP2891_UV_LIMIT_SCALE - + (FIELD_GET(GENMASK(11, 8), ret) + 1) * MP2891_OVUV_DELTA_SCALE; + else + ret = FIELD_GET(GENMASK(7, 0), ret) * MP2891_UV_LIMIT_SCALE; + + ret = ret < 0 ? 0 : ret; + break; + case PMBUS_VOUT_OV_FAULT_LIMIT: + ret = pmbus_read_word_data(client, page, phase, reg); + if (ret < 0) + return ret; + + if (FIELD_GET(GENMASK(11, 8), ret)) + ret = FIELD_GET(GENMASK(7, 0), ret) * MP2891_OV_LIMIT_SCALE + + (FIELD_GET(GENMASK(11, 8), ret) + 1) * MP2891_OVUV_DELTA_SCALE; + else + ret = FIELD_GET(GENMASK(7, 0), ret) * MP2891_OV_LIMIT_SCALE; + break; + case PMBUS_IOUT_OC_WARN_LIMIT: + case PMBUS_IOUT_OC_FAULT_LIMIT: + ret = pmbus_read_word_data(client, page, phase, reg); + if (ret < 0) + return ret; + + ret = DIV_ROUND_CLOSEST((ret & GENMASK(7, 0)) * data->iout_scale[page] * + MP2891_IOUT_LIMIT_UINT, MP2891_IOUT_SCALE_DIV); + break; + case PMBUS_IIN_OC_WARN_LIMIT: + /* + * The scale of PMBUS_IIN_OC_WARN_LIMIT is 0.5A/Lsb, but the iin scale + * is set to 1A/Lsb(using r/m/b scale), so the word data should be + * divided by 2. + */ + ret = pmbus_read_word_data(client, 0, phase, reg); + if (ret < 0) + return ret; + + ret = DIV_ROUND_CLOSEST((ret & GENMASK(9, 0)), 2); + break; + case PMBUS_PIN_OP_WARN_LIMIT: + /* + * The scale of PMBUS_PIN_OP_WARN_LIMIT is 2W/Lsb, but the pin scale + * is set to 1W/Lsb(using r/m/b scale), so the word data should be + * multiplied by 2. + */ + ret = pmbus_read_word_data(client, 0, phase, reg); + if (ret < 0) + return ret; + + ret = (ret & GENMASK(9, 0)) * MP2891_PIN_LIMIT_UINT; + break; + case PMBUS_READ_TEMPERATURE_1: + case PMBUS_VIN_UV_FAULT_LIMIT: + case PMBUS_VIN_UV_WARN_LIMIT: + ret = -ENODATA; + break; + default: + ret = -EINVAL; + break; + } + + return ret; +} + +static int mp2891_write_word_data(struct i2c_client *client, int page, int reg, + u16 word) +{ + const struct pmbus_driver_info *info = pmbus_get_driver_info(client); + struct mp2891_data *data = to_mp2891_data(info); + int ret; + + switch (reg) { + case PMBUS_VOUT_UV_WARN_LIMIT: + ret = pmbus_write_word_data(client, page, reg, + DIV_ROUND_CLOSEST(word * MP2891_VOUT_SCALE_DIV, + data->vout_scale[page])); + break; + case PMBUS_VOUT_UV_FAULT_LIMIT: + /* + * The PMBUS_VOUT_UV_FAULT_LIMIT[7:0] is the limit value, and bit8-bit15 + * should not be changed. + */ + ret = pmbus_read_word_data(client, page, 0xff, reg); + if (ret < 0) + return ret; + + if (FIELD_GET(GENMASK(11, 8), ret)) + ret = pmbus_write_word_data(client, page, reg, + (ret & ~GENMASK(7, 0)) | + FIELD_PREP(GENMASK(7, 0), + DIV_ROUND_CLOSEST(word + + (FIELD_GET(GENMASK(11, 8), ret) + 1) * + MP2891_OVUV_DELTA_SCALE, + MP2891_UV_LIMIT_SCALE))); + else + ret = pmbus_write_word_data(client, page, reg, + (ret & ~GENMASK(7, 0)) | + FIELD_PREP(GENMASK(7, 0), + DIV_ROUND_CLOSEST(word, + MP2891_UV_LIMIT_SCALE))); + break; + case PMBUS_VOUT_OV_FAULT_LIMIT: + /* + * The PMBUS_VOUT_OV_FAULT_LIMIT[7:0] is the limit value, and bit8-bit15 + * should not be changed. + */ + ret = pmbus_read_word_data(client, page, 0xff, reg); + if (ret < 0) + return ret; + + if (FIELD_GET(GENMASK(11, 8), ret)) + ret = pmbus_write_word_data(client, page, reg, + (ret & ~GENMASK(7, 0)) | + FIELD_PREP(GENMASK(7, 0), + DIV_ROUND_CLOSEST(word - + (FIELD_GET(GENMASK(11, 8), ret) + 1) * + MP2891_OVUV_DELTA_SCALE, + MP2891_OV_LIMIT_SCALE))); + else + ret = pmbus_write_word_data(client, page, reg, + (ret & ~GENMASK(7, 0)) | + FIELD_PREP(GENMASK(7, 0), + DIV_ROUND_CLOSEST(word, + MP2891_OV_LIMIT_SCALE))); + break; + case PMBUS_VIN_OV_FAULT_LIMIT: + /* + * The PMBUS_VIN_OV_FAULT_LIMIT[7:0] is the limit value, and bit8-bit15 + * should not be changed. The scale of PMBUS_VIN_OV_FAULT_LIMIT is 125mV/Lsb, + * but the vin scale is set to 31.25mV/Lsb(using r/m/b scale), so the word data + * should be divided by 4. + */ + ret = pmbus_read_word_data(client, page, 0xff, reg); + if (ret < 0) + return ret; + + ret = pmbus_write_word_data(client, page, reg, + (ret & ~GENMASK(7, 0)) | + FIELD_PREP(GENMASK(7, 0), + DIV_ROUND_CLOSEST(word, 4))); + break; + case PMBUS_OT_FAULT_LIMIT: + case PMBUS_OT_WARN_LIMIT: + /* + * The scale of MP2891 PMBUS_OT_FAULT_LIMIT and PMBUS_OT_WARN_LIMIT + * have 40°C offset. The bit0-bit7 is the limit value, and bit8-bit15 + * should not be changed. + */ + ret = pmbus_read_word_data(client, page, 0xff, reg); + if (ret < 0) + return ret; + + ret = pmbus_write_word_data(client, page, reg, + (ret & ~GENMASK(7, 0)) | + FIELD_PREP(GENMASK(7, 0), word + MP2891_TEMP_LIMIT_OFFSET)); + break; + case PMBUS_IOUT_OC_WARN_LIMIT: + case PMBUS_IOUT_OC_FAULT_LIMIT: + ret = pmbus_write_word_data(client, page, reg, + DIV_ROUND_CLOSEST(word * MP2891_IOUT_SCALE_DIV, + MP2891_IOUT_LIMIT_UINT * + data->iout_scale[page])); + break; + case PMBUS_IIN_OC_WARN_LIMIT: + /* + * The scale of PMBUS_IIN_OC_WARN_LIMIT is 0.5A/Lsb, but the iin scale + * is set to 1A/Lsb(using r/m/b scale), so the word data should be + * multiplied by 2. + */ + ret = pmbus_write_word_data(client, page, reg, word * 2); + break; + case PMBUS_PIN_OP_WARN_LIMIT: + /* + * The scale of PMBUS_PIN_OP_WARN_LIMIT is 2W/Lsb, but the pin scale + * is set to 1W/Lsb(using r/m/b scale), so the word data should be + * divided by 2. + */ + ret = pmbus_write_word_data(client, page, reg, + DIV_ROUND_CLOSEST(word, MP2891_PIN_LIMIT_UINT)); + break; + case PMBUS_VIN_UV_FAULT_LIMIT: + case PMBUS_VIN_UV_WARN_LIMIT: + ret = -ENODATA; + break; + default: + ret = -EINVAL; + break; + } + + return ret; +} + +static const struct pmbus_driver_info mp2891_info = { + .pages = MP2891_PAGE_NUM, + .format[PSC_VOLTAGE_IN] = direct, + .format[PSC_CURRENT_IN] = direct, + .format[PSC_CURRENT_OUT] = direct, + .format[PSC_TEMPERATURE] = direct, + .format[PSC_POWER] = direct, + .format[PSC_VOLTAGE_OUT] = direct, + + /* set vin scale 31.25mV/Lsb */ + .m[PSC_VOLTAGE_IN] = 32, + .R[PSC_VOLTAGE_IN] = 0, + .b[PSC_VOLTAGE_IN] = 0, + + /* set temp scale 1000m°C/Lsb */ + .m[PSC_TEMPERATURE] = 1, + .R[PSC_TEMPERATURE] = 0, + .b[PSC_TEMPERATURE] = 0, + + .m[PSC_CURRENT_IN] = 1, + .R[PSC_CURRENT_IN] = 0, + .b[PSC_CURRENT_IN] = 0, + + .m[PSC_CURRENT_OUT] = 1, + .R[PSC_CURRENT_OUT] = 0, + .b[PSC_CURRENT_OUT] = 0, + + .m[PSC_POWER] = 1, + .R[PSC_POWER] = 0, + .b[PSC_POWER] = 0, + + .m[PSC_VOLTAGE_OUT] = 1, + .R[PSC_VOLTAGE_OUT] = 3, + .b[PSC_VOLTAGE_OUT] = 0, + + .func[0] = MP2891_RAIL1_FUNC, + .func[1] = MP2891_RAIL2_FUNC, + .read_word_data = mp2891_read_word_data, + .write_word_data = mp2891_write_word_data, + .read_byte_data = mp2891_read_byte_data, + .identify = mp2891_identify, +}; + +static int mp2891_probe(struct i2c_client *client) +{ + struct mp2891_data *data; + + data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + memcpy(&data->info, &mp2891_info, sizeof(mp2891_info)); + + return pmbus_do_probe(client, &data->info); +} + +static const struct i2c_device_id mp2891_id[] = { + { "mp2891" }, + { } +}; +MODULE_DEVICE_TABLE(i2c, mp2891_id); + +static const struct of_device_id __maybe_unused mp2891_of_match[] = { + {.compatible = "mps,mp2891"}, + {} +}; +MODULE_DEVICE_TABLE(of, mp2891_of_match); + +static struct i2c_driver mp2891_driver = { + .driver = { + .name = "mp2891", + .of_match_table = mp2891_of_match, + }, + .probe = mp2891_probe, + .id_table = mp2891_id, +}; + +module_i2c_driver(mp2891_driver); + +MODULE_AUTHOR("Noah Wang <noahwang.wang@outlook.com>"); +MODULE_DESCRIPTION("PMBus driver for MPS MP2891"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/mp2975.c b/drivers/hwmon/pmbus/mp2975.c index e5fa10b3b8bc..c31982d85196 100644 --- a/drivers/hwmon/pmbus/mp2975.c +++ b/drivers/hwmon/pmbus/mp2975.c @@ -5,12 +5,14 @@ * Copyright (C) 2020 Nvidia Technologies Ltd. */ +#include <linux/bitops.h> #include <linux/err.h> #include <linux/i2c.h> #include <linux/init.h> #include <linux/kernel.h> +#include <linux/mod_devicetable.h> #include <linux/module.h> -#include <linux/of_device.h> + #include "pmbus.h" /* Vendor specific registers. */ @@ -97,6 +99,11 @@ static const int mp2975_max_phases[][MP2975_PAGE_NUM] = { [mp2971] = { MP2971_MAX_PHASE_RAIL1, MP2971_MAX_PHASE_RAIL2 }, }; +struct mp2975_driver_info { + const struct pmbus_driver_info *info; + enum chips chip_id; +}; + struct mp2975_data { struct pmbus_driver_info info; enum chips chip_id; @@ -110,15 +117,6 @@ struct mp2975_data { int curr_sense_gain[MP2975_PAGE_NUM]; }; -static const struct i2c_device_id mp2975_id[] = { - {"mp2971", mp2971}, - {"mp2973", mp2973}, - {"mp2975", mp2975}, - {} -}; - -MODULE_DEVICE_TABLE(i2c, mp2975_id); - static const struct regulator_desc __maybe_unused mp2975_reg_desc[] = { PMBUS_REGULATOR("vout", 0), PMBUS_REGULATOR("vout", 1), @@ -392,6 +390,80 @@ static int mp2973_read_word_data(struct i2c_client *client, int page, return ret; } +static int mp2973_write_word_data(struct i2c_client *client, int page, + int reg, u16 word) +{ + u8 target, mask; + long ret; + + if (reg != PMBUS_SMBALERT_MASK) + return -ENODATA; + + /* + * Vendor-specific SMBALERT_MASK register with 16 maskable bits. + */ + ret = pmbus_read_word_data(client, 0, 0, PMBUS_SMBALERT_MASK); + if (ret < 0) + return ret; + + target = word & 0xff; + mask = word >> 8; + +/* + * Set/Clear 'bit' in 'ret' based on condition followed by define for each bit in SMBALERT_MASK. + * Also bit 2 & 15 are reserved. + */ + +#define MP2973_TEMP_OT 0 +#define MP2973_VIN_UVLO 1 +#define MP2973_VIN_OVP 3 +#define MP2973_MTP_FAULT 4 +#define MP2973_OTHER_COMM 5 +#define MP2973_MTP_BLK_TRIG 6 +#define MP2973_PACKET_ERROR 7 +#define MP2973_INVALID_DATA 8 +#define MP2973_INVALID_COMMAND 9 +#define MP2973_IOUT_OC_LV 10 +#define MP2973_IOUT_OC 11 +#define MP2973_VOUT_MAX_MIN_WARNING 12 +#define MP2973_VOLTAGE_UV 13 +#define MP2973_VOLTAGE_OV 14 + + switch (target) { + case PMBUS_STATUS_CML: + __assign_bit(MP2973_INVALID_DATA, &ret, !(mask & PB_CML_FAULT_INVALID_DATA)); + __assign_bit(MP2973_INVALID_COMMAND, &ret, !(mask & PB_CML_FAULT_INVALID_COMMAND)); + __assign_bit(MP2973_OTHER_COMM, &ret, !(mask & PB_CML_FAULT_OTHER_COMM)); + __assign_bit(MP2973_PACKET_ERROR, &ret, !(mask & PB_CML_FAULT_PACKET_ERROR)); + break; + case PMBUS_STATUS_VOUT: + __assign_bit(MP2973_VOLTAGE_UV, &ret, !(mask & PB_VOLTAGE_UV_FAULT)); + __assign_bit(MP2973_VOLTAGE_OV, &ret, !(mask & PB_VOLTAGE_OV_FAULT)); + break; + case PMBUS_STATUS_IOUT: + __assign_bit(MP2973_IOUT_OC, &ret, !(mask & PB_IOUT_OC_FAULT)); + __assign_bit(MP2973_IOUT_OC_LV, &ret, !(mask & PB_IOUT_OC_LV_FAULT)); + break; + case PMBUS_STATUS_TEMPERATURE: + __assign_bit(MP2973_TEMP_OT, &ret, !(mask & PB_TEMP_OT_FAULT)); + break; + /* + * Map remaining bits to MFR specific to let the PMBUS core mask + * those bits by default. + */ + case PMBUS_STATUS_MFR_SPECIFIC: + __assign_bit(MP2973_VIN_UVLO, &ret, !(mask & BIT(1))); + __assign_bit(MP2973_VIN_OVP, &ret, !(mask & BIT(3))); + __assign_bit(MP2973_MTP_FAULT, &ret, !(mask & BIT(4))); + __assign_bit(MP2973_MTP_BLK_TRIG, &ret, !(mask & BIT(6))); + break; + default: + return 0; + } + + return pmbus_write_word_data(client, 0, PMBUS_SMBALERT_MASK, ret); +} + static int mp2975_read_word_data(struct i2c_client *client, int page, int phase, int reg) { @@ -867,7 +939,7 @@ mp2975_vout_per_rail_config_get(struct i2c_client *client, return 0; } -static struct pmbus_driver_info mp2975_info = { +static const struct pmbus_driver_info mp2975_info = { .pages = 1, .format[PSC_VOLTAGE_IN] = linear, .format[PSC_VOLTAGE_OUT] = direct, @@ -892,7 +964,7 @@ static struct pmbus_driver_info mp2975_info = { #endif }; -static struct pmbus_driver_info mp2973_info = { +static const struct pmbus_driver_info mp2973_info = { .pages = 1, .format[PSC_VOLTAGE_IN] = linear, .format[PSC_VOLTAGE_OUT] = direct, @@ -907,35 +979,41 @@ static struct pmbus_driver_info mp2973_info = { PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP | PMBUS_HAVE_POUT | PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT, .read_word_data = mp2973_read_word_data, + .write_word_data = mp2973_write_word_data, #if IS_ENABLED(CONFIG_SENSORS_MP2975_REGULATOR) .num_regulators = 1, .reg_desc = mp2975_reg_desc, #endif }; +static const struct mp2975_driver_info mp2975_ddinfo[] = { + [mp2975] = { .info = &mp2975_info, .chip_id = mp2975 }, + [mp2973] = { .info = &mp2973_info, .chip_id = mp2973 }, + [mp2971] = { .info = &mp2973_info, .chip_id = mp2971 }, +}; + static int mp2975_probe(struct i2c_client *client) { + const struct mp2975_driver_info *ddinfo; struct pmbus_driver_info *info; struct mp2975_data *data; int ret; + ddinfo = i2c_get_match_data(client); + if (!ddinfo) + return -ENODEV; + data = devm_kzalloc(&client->dev, sizeof(struct mp2975_data), GFP_KERNEL); if (!data) return -ENOMEM; - if (client->dev.of_node) - data->chip_id = (enum chips)(unsigned long)of_device_get_match_data(&client->dev); - else - data->chip_id = i2c_match_id(mp2975_id, client)->driver_data; + data->chip_id = ddinfo->chip_id; memcpy(data->max_phases, mp2975_max_phases[data->chip_id], sizeof(data->max_phases)); - if (data->chip_id == mp2975) - memcpy(&data->info, &mp2975_info, sizeof(*info)); - else - memcpy(&data->info, &mp2973_info, sizeof(*info)); + memcpy(&data->info, ddinfo->info, sizeof(data->info)); info = &data->info; @@ -993,18 +1071,26 @@ static int mp2975_probe(struct i2c_client *client) return pmbus_do_probe(client, info); } -static const struct of_device_id __maybe_unused mp2975_of_match[] = { - {.compatible = "mps,mp2971", .data = (void *)mp2971}, - {.compatible = "mps,mp2973", .data = (void *)mp2973}, - {.compatible = "mps,mp2975", .data = (void *)mp2975}, +static const struct of_device_id mp2975_of_match[] = { + {.compatible = "mps,mp2971", .data = &mp2975_ddinfo[mp2971]}, + {.compatible = "mps,mp2973", .data = &mp2975_ddinfo[mp2973]}, + {.compatible = "mps,mp2975", .data = &mp2975_ddinfo[mp2975]}, {} }; MODULE_DEVICE_TABLE(of, mp2975_of_match); +static const struct i2c_device_id mp2975_id[] = { + {"mp2971", (kernel_ulong_t)&mp2975_ddinfo[mp2971]}, + {"mp2973", (kernel_ulong_t)&mp2975_ddinfo[mp2973]}, + {"mp2975", (kernel_ulong_t)&mp2975_ddinfo[mp2975]}, + {} +}; +MODULE_DEVICE_TABLE(i2c, mp2975_id); + static struct i2c_driver mp2975_driver = { .driver = { .name = "mp2975", - .of_match_table = of_match_ptr(mp2975_of_match), + .of_match_table = mp2975_of_match, }, .probe = mp2975_probe, .id_table = mp2975_id, @@ -1015,4 +1101,4 @@ module_i2c_driver(mp2975_driver); MODULE_AUTHOR("Vadim Pasternak <vadimp@nvidia.com>"); MODULE_DESCRIPTION("PMBus driver for MPS MP2975 device"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/mp2993.c b/drivers/hwmon/pmbus/mp2993.c new file mode 100644 index 000000000000..81c84fc8ed47 --- /dev/null +++ b/drivers/hwmon/pmbus/mp2993.c @@ -0,0 +1,261 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Hardware monitoring driver for MPS Multi-phase Digital VR Controllers(MP2993) + */ + +#include <linux/i2c.h> +#include <linux/module.h> +#include <linux/of_device.h> +#include "pmbus.h" + +#define MP2993_VOUT_OVUV_UINT 125 +#define MP2993_VOUT_OVUV_DIV 64 +#define MP2993_VIN_LIMIT_UINT 1 +#define MP2993_VIN_LIMIT_DIV 8 +#define MP2993_READ_VIN_UINT 1 +#define MP2993_READ_VIN_DIV 32 + +#define MP2993_PAGE_NUM 2 + +#define MP2993_RAIL1_FUNC (PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | \ + PMBUS_HAVE_IOUT | PMBUS_HAVE_POUT | \ + PMBUS_HAVE_TEMP | PMBUS_HAVE_PIN | \ + PMBUS_HAVE_IIN | \ + PMBUS_HAVE_STATUS_VOUT | \ + PMBUS_HAVE_STATUS_IOUT | \ + PMBUS_HAVE_STATUS_TEMP | \ + PMBUS_HAVE_STATUS_INPUT) + +#define MP2993_RAIL2_FUNC (PMBUS_HAVE_VOUT | PMBUS_HAVE_IOUT | \ + PMBUS_HAVE_POUT | PMBUS_HAVE_TEMP | \ + PMBUS_HAVE_STATUS_VOUT | \ + PMBUS_HAVE_STATUS_IOUT | \ + PMBUS_HAVE_STATUS_TEMP | \ + PMBUS_HAVE_STATUS_INPUT) + +/* Converts a linear11 data exponent to a specified value */ +static u16 mp2993_linear11_exponent_transfer(u16 word, u16 expect_exponent) +{ + s16 exponent, mantissa, target_exponent; + + exponent = ((s16)word) >> 11; + mantissa = ((s16)((word & 0x7ff) << 5)) >> 5; + target_exponent = (s16)((expect_exponent & 0x1f) << 11) >> 11; + + if (exponent > target_exponent) + mantissa = mantissa << (exponent - target_exponent); + else + mantissa = mantissa >> (target_exponent - exponent); + + return (mantissa & 0x7ff) | ((expect_exponent << 11) & 0xf800); +} + +static int +mp2993_set_vout_format(struct i2c_client *client, int page, int format) +{ + int ret; + + ret = i2c_smbus_write_byte_data(client, PMBUS_PAGE, page); + if (ret < 0) + return ret; + + return i2c_smbus_write_byte_data(client, PMBUS_VOUT_MODE, format); +} + +static int mp2993_identify(struct i2c_client *client, struct pmbus_driver_info *info) +{ + int ret; + + /* Set vout to direct format for rail1. */ + ret = mp2993_set_vout_format(client, 0, PB_VOUT_MODE_DIRECT); + if (ret < 0) + return ret; + + /* Set vout to direct format for rail2. */ + return mp2993_set_vout_format(client, 1, PB_VOUT_MODE_DIRECT); +} + +static int mp2993_read_word_data(struct i2c_client *client, int page, int phase, + int reg) +{ + int ret; + + switch (reg) { + case PMBUS_VOUT_OV_FAULT_LIMIT: + case PMBUS_VOUT_UV_FAULT_LIMIT: + ret = pmbus_read_word_data(client, page, phase, reg); + if (ret < 0) + return ret; + + ret = DIV_ROUND_CLOSEST(ret * MP2993_VOUT_OVUV_UINT, MP2993_VOUT_OVUV_DIV); + break; + case PMBUS_OT_FAULT_LIMIT: + case PMBUS_OT_WARN_LIMIT: + /* + * The MP2993 ot fault limit value and ot warn limit value + * per rail are always the same, so only PMBUS_OT_FAULT_LIMIT + * and PMBUS_OT_WARN_LIMIT register in page 0 are defined to + * indicates the limit value. + */ + ret = pmbus_read_word_data(client, 0, phase, reg); + break; + case PMBUS_READ_VIN: + /* The MP2993 vin scale is (1/32V)/Lsb */ + ret = pmbus_read_word_data(client, page, phase, reg); + if (ret < 0) + return ret; + + ret = DIV_ROUND_CLOSEST((ret & GENMASK(9, 0)) * MP2993_READ_VIN_UINT, + MP2993_READ_VIN_DIV); + break; + case PMBUS_VIN_OV_FAULT_LIMIT: + case PMBUS_VIN_OV_WARN_LIMIT: + case PMBUS_VIN_UV_WARN_LIMIT: + case PMBUS_VIN_UV_FAULT_LIMIT: + /* The MP2993 vin limit scale is (1/8V)/Lsb */ + ret = pmbus_read_word_data(client, page, phase, reg); + if (ret < 0) + return ret; + + ret = DIV_ROUND_CLOSEST((ret & GENMASK(7, 0)) * MP2993_VIN_LIMIT_UINT, + MP2993_VIN_LIMIT_DIV); + break; + case PMBUS_READ_IOUT: + case PMBUS_READ_IIN: + case PMBUS_IIN_OC_WARN_LIMIT: + case PMBUS_IOUT_OC_FAULT_LIMIT: + case PMBUS_IOUT_OC_WARN_LIMIT: + case PMBUS_READ_VOUT: + case PMBUS_READ_PIN: + case PMBUS_READ_POUT: + case PMBUS_READ_TEMPERATURE_1: + ret = -ENODATA; + break; + default: + ret = -EINVAL; + break; + } + + return ret; +} + +static int mp2993_write_word_data(struct i2c_client *client, int page, int reg, + u16 word) +{ + int ret; + + switch (reg) { + case PMBUS_VOUT_OV_FAULT_LIMIT: + case PMBUS_VOUT_UV_FAULT_LIMIT: + ret = DIV_ROUND_CLOSEST(word * MP2993_VOUT_OVUV_DIV, MP2993_VOUT_OVUV_UINT); + ret = pmbus_write_word_data(client, 0, reg, ret); + break; + case PMBUS_OT_FAULT_LIMIT: + case PMBUS_OT_WARN_LIMIT: + /* + * The MP2993 ot fault limit value and ot warn limit value + * per rail are always the same, so only PMBUS_OT_FAULT_LIMIT + * and PMBUS_OT_WARN_LIMIT register in page 0 are defined to + * config the ot limit value. + */ + ret = pmbus_write_word_data(client, 0, reg, word); + break; + case PMBUS_VIN_OV_FAULT_LIMIT: + case PMBUS_VIN_OV_WARN_LIMIT: + case PMBUS_VIN_UV_WARN_LIMIT: + case PMBUS_VIN_UV_FAULT_LIMIT: + /* The MP2993 vin limit scale is (1/8V)/Lsb */ + ret = pmbus_write_word_data(client, 0, reg, + DIV_ROUND_CLOSEST(word * MP2993_VIN_LIMIT_DIV, + MP2993_VIN_LIMIT_UINT)); + break; + case PMBUS_IIN_OC_WARN_LIMIT: + /* + * The PMBUS_IIN_OC_WARN_LIMIT of MP2993 is linear11 format, + * and the exponent is a constant value(5'b00000)， so the + * exponent of word parameter should be converted to 5'b00000. + */ + ret = pmbus_write_word_data(client, page, reg, + mp2993_linear11_exponent_transfer(word, 0x00)); + break; + // + case PMBUS_IOUT_OC_FAULT_LIMIT: + case PMBUS_IOUT_OC_WARN_LIMIT: + /* + * The PMBUS_IOUT_OC_FAULT_LIMIT and PMBUS_IOUT_OC_WARN_LIMIT + * of MP2993 can be regarded as linear11 format, and the + * exponent is a 5'b00001 or 5'b00000. To ensure a larger + * range of limit value, so the exponent of word parameter + * should be converted to 5'b00001. + */ + ret = pmbus_write_word_data(client, page, reg, + mp2993_linear11_exponent_transfer(word, 0x01)); + break; + default: + ret = -EINVAL; + break; + } + + return ret; +} + +static struct pmbus_driver_info mp2993_info = { + .pages = MP2993_PAGE_NUM, + .format[PSC_VOLTAGE_IN] = direct, + .format[PSC_CURRENT_IN] = linear, + .format[PSC_CURRENT_OUT] = linear, + .format[PSC_TEMPERATURE] = direct, + .format[PSC_POWER] = linear, + .format[PSC_VOLTAGE_OUT] = direct, + + .m[PSC_VOLTAGE_OUT] = 1, + .R[PSC_VOLTAGE_OUT] = 3, + .b[PSC_VOLTAGE_OUT] = 0, + + .m[PSC_VOLTAGE_IN] = 1, + .R[PSC_VOLTAGE_IN] = 0, + .b[PSC_VOLTAGE_IN] = 0, + + .m[PSC_TEMPERATURE] = 1, + .R[PSC_TEMPERATURE] = 0, + .b[PSC_TEMPERATURE] = 0, + + .func[0] = MP2993_RAIL1_FUNC, + .func[1] = MP2993_RAIL2_FUNC, + .read_word_data = mp2993_read_word_data, + .write_word_data = mp2993_write_word_data, + .identify = mp2993_identify, +}; + +static int mp2993_probe(struct i2c_client *client) +{ + return pmbus_do_probe(client, &mp2993_info); +} + +static const struct i2c_device_id mp2993_id[] = { + { "mp2993" }, + { } +}; +MODULE_DEVICE_TABLE(i2c, mp2993_id); + +static const struct of_device_id __maybe_unused mp2993_of_match[] = { + {.compatible = "mps,mp2993"}, + {} +}; +MODULE_DEVICE_TABLE(of, mp2993_of_match); + +static struct i2c_driver mp2993_driver = { + .driver = { + .name = "mp2993", + .of_match_table = mp2993_of_match, + }, + .probe = mp2993_probe, + .id_table = mp2993_id, +}; + +module_i2c_driver(mp2993_driver); + +MODULE_AUTHOR("Noah Wang <noahwang.wang@outlook.com>"); +MODULE_DESCRIPTION("PMBus driver for MPS MP2993"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/mp5023.c b/drivers/hwmon/pmbus/mp5023.c index 21acb7fd9a1a..c466d67e9a8f 100644 --- a/drivers/hwmon/pmbus/mp5023.c +++ b/drivers/hwmon/pmbus/mp5023.c @@ -64,4 +64,4 @@ module_i2c_driver(mp5023_driver); MODULE_AUTHOR("Howard Chiu <howard.chiu@quantatw.com>"); MODULE_DESCRIPTION("PMBus driver for MPS MP5023 HSC"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/mp5920.c b/drivers/hwmon/pmbus/mp5920.c new file mode 100644 index 000000000000..319ae2721bcf --- /dev/null +++ b/drivers/hwmon/pmbus/mp5920.c @@ -0,0 +1,90 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Hardware monitoring driver for MP5920 and compatible chips. + */ + +#include <linux/i2c.h> +#include <linux/minmax.h> +#include <linux/module.h> +#include <linux/of_device.h> +#include "pmbus.h" + +static struct pmbus_driver_info mp5920_info = { + .pages = 1, + .format[PSC_VOLTAGE_IN] = direct, + .format[PSC_VOLTAGE_OUT] = direct, + .format[PSC_CURRENT_OUT] = direct, + .format[PSC_POWER] = direct, + .format[PSC_TEMPERATURE] = direct, + .m[PSC_VOLTAGE_IN] = 2266, + .b[PSC_VOLTAGE_IN] = 0, + .R[PSC_VOLTAGE_IN] = -1, + .m[PSC_VOLTAGE_OUT] = 2266, + .b[PSC_VOLTAGE_OUT] = 0, + .R[PSC_VOLTAGE_OUT] = -1, + .m[PSC_CURRENT_OUT] = 546, + .b[PSC_CURRENT_OUT] = 0, + .R[PSC_CURRENT_OUT] = -2, + .m[PSC_POWER] = 5840, + .b[PSC_POWER] = 0, + .R[PSC_POWER] = -3, + .m[PSC_TEMPERATURE] = 1067, + .b[PSC_TEMPERATURE] = 20500, + .R[PSC_TEMPERATURE] = -2, + .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | + PMBUS_HAVE_IOUT | PMBUS_HAVE_POUT | + PMBUS_HAVE_TEMP, +}; + +static int mp5920_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + int ret; + u8 buf[I2C_SMBUS_BLOCK_MAX]; + + if (!i2c_check_functionality(client->adapter, + I2C_FUNC_SMBUS_READ_WORD_DATA)) + return -ENODEV; + + ret = i2c_smbus_read_block_data(client, PMBUS_MFR_MODEL, buf); + if (ret < 0) + return dev_err_probe(dev, ret, "Failed to read PMBUS_MFR_MODEL\n"); + + if (ret != 6 || strncmp(buf, "MP5920", 6)) { + return dev_err_probe(dev, -ENODEV, "Model '%.*s' not supported\n", + min_t(int, ret, sizeof(buf)), buf); + } + + return pmbus_do_probe(client, &mp5920_info); +} + +static const struct of_device_id mp5920_of_match[] = { + { .compatible = "mps,mp5920" }, + { } +}; + +MODULE_DEVICE_TABLE(of, mp5920_of_match); + +static const struct i2c_device_id mp5920_id[] = { + { "mp5920" }, + { } +}; + +MODULE_DEVICE_TABLE(i2c, mp5920_id); + +static struct i2c_driver mp5920_driver = { + .driver = { + .name = "mp5920", + .of_match_table = mp5920_of_match, + }, + .probe = mp5920_probe, + .id_table = mp5920_id, +}; + +module_i2c_driver(mp5920_driver); + +MODULE_AUTHOR("Tony Ao <tony_ao@wiwynn.com>"); +MODULE_AUTHOR("Alex Vdovydchenko <xzeol@yahoo.com>"); +MODULE_DESCRIPTION("PMBus driver for MP5920 HSC"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/mp5990.c b/drivers/hwmon/pmbus/mp5990.c index 1dfbab25a064..4ce381a39480 100644 --- a/drivers/hwmon/pmbus/mp5990.c +++ b/drivers/hwmon/pmbus/mp5990.c @@ -158,7 +158,7 @@ static const struct of_device_id mp5990_of_match[] = { }; static const struct i2c_device_id mp5990_id[] = { - {"mp5990", 0}, + {"mp5990"}, { } }; MODULE_DEVICE_TABLE(i2c, mp5990_id); @@ -176,4 +176,4 @@ module_i2c_driver(mp5990_driver); MODULE_AUTHOR("Peter Yin <peter.yin@quantatw.com>"); MODULE_DESCRIPTION("PMBus driver for MP5990 HSC"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/mp9941.c b/drivers/hwmon/pmbus/mp9941.c new file mode 100644 index 000000000000..42ca6748777a --- /dev/null +++ b/drivers/hwmon/pmbus/mp9941.c @@ -0,0 +1,319 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Hardware monitoring driver for MPS Multi-phase Digital VR Controllers(MP9941) + */ + +#include <linux/bitfield.h> +#include <linux/bits.h> +#include <linux/i2c.h> +#include <linux/module.h> +#include <linux/of_device.h> +#include "pmbus.h" + +/* + * Vender specific registers. The MFR_ICC_MAX(0x02) is used to + * config the iin scale. The MFR_RESO_SET(0xC7) is used to + * config the vout format. The MFR_VR_MULTI_CONFIG_R1(0x0D) is + * used to identify the vout vid step. + */ +#define MFR_ICC_MAX 0x02 +#define MFR_RESO_SET 0xC7 +#define MFR_VR_MULTI_CONFIG_R1 0x0D + +#define MP9941_VIN_LIMIT_UINT 1 +#define MP9941_VIN_LIMIT_DIV 8 +#define MP9941_READ_VIN_UINT 1 +#define MP9941_READ_VIN_DIV 32 + +#define MP9941_PAGE_NUM 1 + +#define MP9941_RAIL1_FUNC (PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | \ + PMBUS_HAVE_IOUT | PMBUS_HAVE_POUT | \ + PMBUS_HAVE_TEMP | PMBUS_HAVE_PIN | \ + PMBUS_HAVE_IIN | \ + PMBUS_HAVE_STATUS_VOUT | \ + PMBUS_HAVE_STATUS_IOUT | \ + PMBUS_HAVE_STATUS_TEMP | \ + PMBUS_HAVE_STATUS_INPUT) + +struct mp9941_data { + struct pmbus_driver_info info; + int vid_resolution; +}; + +#define to_mp9941_data(x) container_of(x, struct mp9941_data, info) + +static int mp9941_set_vout_format(struct i2c_client *client) +{ + int ret; + + ret = i2c_smbus_write_byte_data(client, PMBUS_PAGE, 0); + if (ret < 0) + return ret; + + ret = i2c_smbus_read_word_data(client, MFR_RESO_SET); + if (ret < 0) + return ret; + + /* + * page = 0, MFR_RESO_SET[7:6] defines the vout format + * 2'b11 set the vout format as direct + */ + ret = (ret & ~GENMASK(7, 6)) | FIELD_PREP(GENMASK(7, 6), 3); + + return i2c_smbus_write_word_data(client, MFR_RESO_SET, ret); +} + +static int +mp9941_identify_vid_resolution(struct i2c_client *client, struct pmbus_driver_info *info) +{ + struct mp9941_data *data = to_mp9941_data(info); + int ret; + + /* + * page = 2, MFR_VR_MULTI_CONFIG_R1[4:4] defines rail1 vid step value + * 1'b0 represents the vid step value is 10mV + * 1'b1 represents the vid step value is 5mV + */ + ret = i2c_smbus_write_byte_data(client, PMBUS_PAGE, 2); + if (ret < 0) + return ret; + + ret = i2c_smbus_read_word_data(client, MFR_VR_MULTI_CONFIG_R1); + if (ret < 0) + return ret; + + if (FIELD_GET(GENMASK(4, 4), ret)) + data->vid_resolution = 5; + else + data->vid_resolution = 10; + + return 0; +} + +static int mp9941_identify_iin_scale(struct i2c_client *client) +{ + int ret; + + ret = i2c_smbus_write_byte_data(client, PMBUS_PAGE, 0); + if (ret < 0) + return ret; + + ret = i2c_smbus_read_word_data(client, MFR_RESO_SET); + if (ret < 0) + return ret; + + ret = (ret & ~GENMASK(3, 2)) | FIELD_PREP(GENMASK(3, 2), 0); + + ret = i2c_smbus_write_word_data(client, MFR_RESO_SET, ret); + if (ret < 0) + return ret; + + /* + * page = 2, MFR_ICC_MAX[15:13] defines the iin scale + * 3'b000 set the iout scale as 0.5A/Lsb + */ + ret = i2c_smbus_write_byte_data(client, PMBUS_PAGE, 2); + if (ret < 0) + return ret; + + ret = i2c_smbus_read_word_data(client, MFR_ICC_MAX); + if (ret < 0) + return ret; + + ret = (ret & ~GENMASK(15, 13)) | FIELD_PREP(GENMASK(15, 13), 0); + + return i2c_smbus_write_word_data(client, MFR_ICC_MAX, ret); +} + +static int mp9941_identify(struct i2c_client *client, struct pmbus_driver_info *info) +{ + int ret; + + ret = mp9941_identify_iin_scale(client); + if (ret < 0) + return ret; + + ret = mp9941_identify_vid_resolution(client, info); + if (ret < 0) + return ret; + + return mp9941_set_vout_format(client); +} + +static int mp9941_read_word_data(struct i2c_client *client, int page, int phase, + int reg) +{ + const struct pmbus_driver_info *info = pmbus_get_driver_info(client); + struct mp9941_data *data = to_mp9941_data(info); + int ret; + + switch (reg) { + case PMBUS_READ_VIN: + /* The MP9941 vin scale is (1/32V)/Lsb */ + ret = pmbus_read_word_data(client, page, phase, reg); + if (ret < 0) + return ret; + + ret = DIV_ROUND_CLOSEST((ret & GENMASK(9, 0)) * MP9941_READ_VIN_UINT, + MP9941_READ_VIN_DIV); + break; + case PMBUS_READ_IIN: + ret = pmbus_read_word_data(client, page, phase, reg); + if (ret < 0) + return ret; + + ret = ret & GENMASK(10, 0); + break; + case PMBUS_VIN_OV_FAULT_LIMIT: + /* The MP9941 vin ov limit scale is (1/8V)/Lsb */ + ret = pmbus_read_word_data(client, page, phase, reg); + if (ret < 0) + return ret; + + ret = DIV_ROUND_CLOSEST((ret & GENMASK(7, 0)) * MP9941_VIN_LIMIT_UINT, + MP9941_VIN_LIMIT_DIV); + break; + case PMBUS_IIN_OC_WARN_LIMIT: + ret = pmbus_read_word_data(client, page, phase, reg); + if (ret < 0) + return ret; + + ret = ret & GENMASK(7, 0); + break; + case PMBUS_VOUT_UV_FAULT_LIMIT: + case PMBUS_MFR_VOUT_MIN: + case PMBUS_MFR_VOUT_MAX: + /* + * The vout scale is set to 1mV/Lsb(using r/m/b scale). + * But the vout uv limit and vout max/min scale is 1VID/Lsb, + * so the vout uv limit and vout max/min value should be + * multiplied by vid resolution. + */ + ret = pmbus_read_word_data(client, page, phase, reg); + if (ret < 0) + return ret; + + ret = ret * data->vid_resolution; + break; + case PMBUS_READ_IOUT: + case PMBUS_READ_POUT: + case PMBUS_READ_TEMPERATURE_1: + case PMBUS_READ_VOUT: + case PMBUS_READ_PIN: + case PMBUS_OT_FAULT_LIMIT: + case PMBUS_OT_WARN_LIMIT: + ret = -ENODATA; + break; + default: + ret = -EINVAL; + break; + } + + return ret; +} + +static int mp9941_write_word_data(struct i2c_client *client, int page, int reg, + u16 word) +{ + const struct pmbus_driver_info *info = pmbus_get_driver_info(client); + struct mp9941_data *data = to_mp9941_data(info); + int ret; + + switch (reg) { + case PMBUS_VIN_OV_FAULT_LIMIT: + /* The MP9941 vin ov limit scale is (1/8V)/Lsb */ + ret = pmbus_write_word_data(client, page, reg, + DIV_ROUND_CLOSEST(word * MP9941_VIN_LIMIT_DIV, + MP9941_VIN_LIMIT_UINT)); + break; + case PMBUS_VOUT_UV_FAULT_LIMIT: + case PMBUS_MFR_VOUT_MIN: + case PMBUS_MFR_VOUT_MAX: + ret = pmbus_write_word_data(client, page, reg, + DIV_ROUND_CLOSEST(word, data->vid_resolution)); + break; + case PMBUS_IIN_OC_WARN_LIMIT: + case PMBUS_OT_FAULT_LIMIT: + case PMBUS_OT_WARN_LIMIT: + ret = -ENODATA; + break; + default: + ret = -EINVAL; + break; + } + + return ret; +} + +static const struct pmbus_driver_info mp9941_info = { + .pages = MP9941_PAGE_NUM, + .format[PSC_VOLTAGE_IN] = direct, + .format[PSC_CURRENT_IN] = direct, + .format[PSC_CURRENT_OUT] = linear, + .format[PSC_POWER] = linear, + .format[PSC_TEMPERATURE] = direct, + .format[PSC_VOLTAGE_OUT] = direct, + + .m[PSC_TEMPERATURE] = 1, + .R[PSC_TEMPERATURE] = 0, + .b[PSC_TEMPERATURE] = 0, + + .m[PSC_VOLTAGE_IN] = 1, + .R[PSC_VOLTAGE_IN] = 0, + .b[PSC_VOLTAGE_IN] = 0, + + .m[PSC_CURRENT_IN] = 2, + .R[PSC_CURRENT_IN] = 0, + .b[PSC_CURRENT_IN] = 0, + + .m[PSC_VOLTAGE_OUT] = 1, + .R[PSC_VOLTAGE_OUT] = 3, + .b[PSC_VOLTAGE_OUT] = 0, + + .func[0] = MP9941_RAIL1_FUNC, + .read_word_data = mp9941_read_word_data, + .write_word_data = mp9941_write_word_data, + .identify = mp9941_identify, +}; + +static int mp9941_probe(struct i2c_client *client) +{ + struct mp9941_data *data; + + data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + memcpy(&data->info, &mp9941_info, sizeof(mp9941_info)); + + return pmbus_do_probe(client, &data->info); +} + +static const struct i2c_device_id mp9941_id[] = { + { "mp9941" }, + { } +}; +MODULE_DEVICE_TABLE(i2c, mp9941_id); + +static const struct of_device_id __maybe_unused mp9941_of_match[] = { + {.compatible = "mps,mp9941"}, + {} +}; +MODULE_DEVICE_TABLE(of, mp9941_of_match); + +static struct i2c_driver mp9941_driver = { + .driver = { + .name = "mp9941", + .of_match_table = mp9941_of_match, + }, + .probe = mp9941_probe, + .id_table = mp9941_id, +}; + +module_i2c_driver(mp9941_driver); + +MODULE_AUTHOR("Noah Wang <noahwang.wang@outlook.com>"); +MODULE_DESCRIPTION("PMBus driver for MPS MP9941"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/mpq7932.c b/drivers/hwmon/pmbus/mpq7932.c index 67487867c70f..c1e2d0cb2fd0 100644 --- a/drivers/hwmon/pmbus/mpq7932.c +++ b/drivers/hwmon/pmbus/mpq7932.c @@ -35,7 +35,7 @@ struct mpq7932_data { }; #if IS_ENABLED(CONFIG_SENSORS_MPQ7932_REGULATOR) -static struct regulator_desc mpq7932_regulators_desc[] = { +static const struct regulator_desc mpq7932_regulators_desc[] = { PMBUS_REGULATOR_STEP("buck", 0, MPQ7932_N_VOLTAGES, MPQ7932_UV_STEP, MPQ7932_BUCK_UV_MIN), PMBUS_REGULATOR_STEP("buck", 1, MPQ7932_N_VOLTAGES, @@ -164,4 +164,4 @@ module_i2c_driver(mpq7932_regulator_driver); MODULE_AUTHOR("Saravanan Sekar <saravanan@linumiz.com>"); MODULE_DESCRIPTION("MPQ7932 PMIC regulator driver"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/mpq8785.c b/drivers/hwmon/pmbus/mpq8785.c index 4e2549cc8120..331c274ca892 100644 --- a/drivers/hwmon/pmbus/mpq8785.c +++ b/drivers/hwmon/pmbus/mpq8785.c @@ -22,7 +22,7 @@ static int mpq8785_identify(struct i2c_client *client, break; case 1: case 2: - info->format[PSC_VOLTAGE_OUT] = direct, + info->format[PSC_VOLTAGE_OUT] = direct; info->m[PSC_VOLTAGE_OUT] = 64; info->b[PSC_VOLTAGE_OUT] = 0; info->R[PSC_VOLTAGE_OUT] = 1; @@ -62,7 +62,7 @@ static int mpq8785_probe(struct i2c_client *client) }; static const struct i2c_device_id mpq8785_id[] = { - { "mpq8785", 0 }, + { "mpq8785" }, { }, }; MODULE_DEVICE_TABLE(i2c, mpq8785_id); @@ -87,4 +87,4 @@ module_i2c_driver(mpq8785_driver); MODULE_AUTHOR("Charles Hsu <ythsu0511@gmail.com>"); MODULE_DESCRIPTION("PMBus driver for MPS MPQ8785"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/pim4328.c b/drivers/hwmon/pmbus/pim4328.c index 31d9ae06379a..aa98284bbdd8 100644 --- a/drivers/hwmon/pmbus/pim4328.c +++ b/drivers/hwmon/pmbus/pim4328.c @@ -230,4 +230,4 @@ module_i2c_driver(pim4328_driver); MODULE_AUTHOR("Erik Rosen <erik.rosen@metormote.com>"); MODULE_DESCRIPTION("PMBus driver for PIM4006, PIM4328, PIM4820 power interface modules"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/pli1209bc.c b/drivers/hwmon/pmbus/pli1209bc.c index c95433790b11..569b61dc1a32 100644 --- a/drivers/hwmon/pmbus/pli1209bc.c +++ b/drivers/hwmon/pmbus/pli1209bc.c @@ -54,30 +54,6 @@ static int pli1209bc_read_word_data(struct i2c_client *client, int page, } } -static int pli1209bc_write_byte(struct i2c_client *client, int page, u8 reg) -{ - int ret; - - switch (reg) { - case PMBUS_CLEAR_FAULTS: - ret = pmbus_write_byte(client, page, reg); - /* - * PLI1209 takes 230 usec to execute the CLEAR_FAULTS command. - * During that time it's busy and NACKs all requests on the - * SMBUS interface. It also NACKs reads on PMBUS_STATUS_BYTE - * making it impossible to poll the BUSY flag. - * - * Just wait for not BUSY unconditionally. - */ - usleep_range(250, 300); - break; - default: - ret = -ENODATA; - break; - } - return ret; -} - #if IS_ENABLED(CONFIG_SENSORS_PLI1209BC_REGULATOR) static const struct regulator_desc pli1209bc_reg_desc = { .name = "vout2", @@ -127,7 +103,7 @@ static struct pmbus_driver_info pli1209bc_info = { | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_STATUS_INPUT, .read_word_data = pli1209bc_read_word_data, - .write_byte = pli1209bc_write_byte, + .write_delay = 250, #if IS_ENABLED(CONFIG_SENSORS_PLI1209BC_REGULATOR) .num_regulators = 1, .reg_desc = &pli1209bc_reg_desc, @@ -141,7 +117,7 @@ static int pli1209bc_probe(struct i2c_client *client) } static const struct i2c_device_id pli1209bc_id[] = { - {"pli1209bc", 0}, + {"pli1209bc"}, {} }; @@ -169,4 +145,4 @@ module_i2c_driver(pli1209bc_driver); MODULE_AUTHOR("Marcello Sylvester Bauer <sylv@sylv.io>"); MODULE_DESCRIPTION("PMBus driver for Vicor PLI1209BC"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/pm6764tr.c b/drivers/hwmon/pmbus/pm6764tr.c index 2a16504c85b7..c96c0aecb920 100644 --- a/drivers/hwmon/pmbus/pm6764tr.c +++ b/drivers/hwmon/pmbus/pm6764tr.c @@ -48,7 +48,7 @@ static int pm6764tr_probe(struct i2c_client *client) } static const struct i2c_device_id pm6764tr_id[] = { - {"pm6764tr", 0}, + {"pm6764tr"}, {} }; MODULE_DEVICE_TABLE(i2c, pm6764tr_id); @@ -73,4 +73,4 @@ module_i2c_driver(pm6764tr_driver); MODULE_AUTHOR("Charles Hsu"); MODULE_DESCRIPTION("PMBus driver for ST PM6764TR"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/pmbus.c b/drivers/hwmon/pmbus/pmbus.c index ec40c5c59954..920cd5408141 100644 --- a/drivers/hwmon/pmbus/pmbus.c +++ b/drivers/hwmon/pmbus/pmbus.c @@ -103,6 +103,8 @@ static int pmbus_identify(struct i2c_client *client, if (pmbus_check_byte_register(client, 0, PMBUS_PAGE)) { int page; + info->pages = PMBUS_PAGES; + for (page = 1; page < PMBUS_PAGES; page++) { if (pmbus_set_page(client, page, 0xff) < 0) break; @@ -261,4 +263,4 @@ module_i2c_driver(pmbus_driver); MODULE_AUTHOR("Guenter Roeck"); MODULE_DESCRIPTION("Generic PMBus driver"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/pmbus.h b/drivers/hwmon/pmbus/pmbus.h index fb442fae7b3e..ddb19c9726d6 100644 --- a/drivers/hwmon/pmbus/pmbus.h +++ b/drivers/hwmon/pmbus/pmbus.h @@ -418,6 +418,12 @@ enum pmbus_sensor_classes { enum pmbus_data_format { linear = 0, ieee754, direct, vid }; enum vrm_version { vr11 = 0, vr12, vr13, imvp9, amd625mv }; +/* PMBus revision identifiers */ +#define PMBUS_REV_10 0x00 /* PMBus revision 1.0 */ +#define PMBUS_REV_11 0x11 /* PMBus revision 1.1 */ +#define PMBUS_REV_12 0x22 /* PMBus revision 1.2 */ +#define PMBUS_REV_13 0x33 /* PMBus revision 1.3 */ + struct pmbus_driver_info { int pages; /* Total number of pages */ u8 phases[PMBUS_PAGES]; /* Number of phases per page */ @@ -466,11 +472,23 @@ struct pmbus_driver_info { /* custom attributes */ const struct attribute_group **groups; + + /* + * Some chips need a little delay between SMBus communication. When + * set, the generic PMBus helper functions will wait if necessary + * to meet this requirement. The access delay is honored after + * every SMBus operation. The write delay is only honored after + * SMBus write operations. + */ + int access_delay; /* in microseconds */ + int write_delay; /* in microseconds */ }; /* Regulator ops */ extern const struct regulator_ops pmbus_regulator_ops; +int pmbus_regulator_init_cb(struct regulator_dev *rdev, + struct regulator_config *config); /* Macros for filling in array of struct regulator_desc */ #define PMBUS_REGULATOR_STEP(_name, _id, _voltages, _step, _min_uV) \ @@ -485,6 +503,7 @@ extern const struct regulator_ops pmbus_regulator_ops; .n_voltages = _voltages, \ .uV_step = _step, \ .min_uV = _min_uV, \ + .init_cb = pmbus_regulator_init_cb, \ } #define PMBUS_REGULATOR(_name, _id) PMBUS_REGULATOR_STEP(_name, _id, 0, 0, 0) @@ -500,6 +519,7 @@ extern const struct regulator_ops pmbus_regulator_ops; .n_voltages = _voltages, \ .uV_step = _step, \ .min_uV = _min_uV, \ + .init_cb = pmbus_regulator_init_cb, \ } #define PMBUS_REGULATOR_ONE(_name) PMBUS_REGULATOR_STEP_ONE(_name, 0, 0, 0) diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c index cb4c65a7f288..cfeba2e4c5c3 100644 --- a/drivers/hwmon/pmbus/pmbus_core.c +++ b/drivers/hwmon/pmbus/pmbus_core.c @@ -7,6 +7,8 @@ */ #include <linux/debugfs.h> +#include <linux/delay.h> +#include <linux/dcache.h> #include <linux/kernel.h> #include <linux/math64.h> #include <linux/module.h> @@ -30,6 +32,9 @@ #define PMBUS_ATTR_ALLOC_SIZE 32 #define PMBUS_NAME_SIZE 24 +static int wp = -1; +module_param(wp, int, 0444); + struct pmbus_sensor { struct pmbus_sensor *next; char name[PMBUS_NAME_SIZE]; /* sysfs sensor name */ @@ -40,8 +45,7 @@ struct pmbus_sensor { enum pmbus_sensor_classes class; /* sensor class */ bool update; /* runtime sensor update needed */ bool convert; /* Whether or not to apply linear/vid/direct */ - int data; /* Sensor data. - Negative if there was a read error */ + int data; /* Sensor data; negative if there was a read error */ }; #define to_pmbus_sensor(_attr) \ container_of(_attr, struct pmbus_sensor, attribute) @@ -85,6 +89,8 @@ struct pmbus_data { u32 flags; /* from platform data */ + u8 revision; /* The PMBus revision the device is compliant with */ + int exponent[PMBUS_PAGES]; /* linear mode: exponent for output voltages */ @@ -94,7 +100,6 @@ struct pmbus_data { int num_attributes; struct attribute_group group; const struct attribute_group **groups; - struct dentry *debugfs; /* debugfs device directory */ struct pmbus_sensor *sensors; @@ -108,6 +113,8 @@ struct pmbus_data { int vout_low[PMBUS_PAGES]; /* voltage low margin */ int vout_high[PMBUS_PAGES]; /* voltage high margin */ + ktime_t write_time; /* Last SMBUS write timestamp */ + ktime_t access_time; /* Last SMBUS access timestamp */ }; struct pmbus_debugfs_entry { @@ -145,7 +152,7 @@ void pmbus_clear_cache(struct i2c_client *client) for (sensor = data->sensors; sensor; sensor = sensor->next) sensor->data = -ENODATA; } -EXPORT_SYMBOL_NS_GPL(pmbus_clear_cache, PMBUS); +EXPORT_SYMBOL_NS_GPL(pmbus_clear_cache, "PMBUS"); void pmbus_set_update(struct i2c_client *client, u8 reg, bool update) { @@ -156,7 +163,39 @@ void pmbus_set_update(struct i2c_client *client, u8 reg, bool update) if (sensor->reg == reg) sensor->update = update; } -EXPORT_SYMBOL_NS_GPL(pmbus_set_update, PMBUS); +EXPORT_SYMBOL_NS_GPL(pmbus_set_update, "PMBUS"); + +/* Some chips need a delay between accesses. */ +static void pmbus_wait(struct i2c_client *client) +{ + struct pmbus_data *data = i2c_get_clientdata(client); + const struct pmbus_driver_info *info = data->info; + s64 delta; + + if (info->access_delay) { + delta = ktime_us_delta(ktime_get(), data->access_time); + + if (delta < info->access_delay) + fsleep(info->access_delay - delta); + } else if (info->write_delay) { + delta = ktime_us_delta(ktime_get(), data->write_time); + + if (delta < info->write_delay) + fsleep(info->write_delay - delta); + } +} + +/* Sets the last accessed timestamp for pmbus_wait */ +static void pmbus_update_ts(struct i2c_client *client, bool write_op) +{ + struct pmbus_data *data = i2c_get_clientdata(client); + const struct pmbus_driver_info *info = data->info; + + if (info->access_delay) + data->access_time = ktime_get(); + else if (info->write_delay && write_op) + data->write_time = ktime_get(); +} int pmbus_set_page(struct i2c_client *client, int page, int phase) { @@ -168,11 +207,15 @@ int pmbus_set_page(struct i2c_client *client, int page, int phase) if (!(data->info->func[page] & PMBUS_PAGE_VIRTUAL) && data->info->pages > 1 && page != data->currpage) { + pmbus_wait(client); rv = i2c_smbus_write_byte_data(client, PMBUS_PAGE, page); + pmbus_update_ts(client, true); if (rv < 0) return rv; + pmbus_wait(client); rv = i2c_smbus_read_byte_data(client, PMBUS_PAGE); + pmbus_update_ts(client, false); if (rv < 0) return rv; @@ -183,8 +226,10 @@ int pmbus_set_page(struct i2c_client *client, int page, int phase) if (data->info->phases[page] && data->currphase != phase && !(data->info->func[page] & PMBUS_PHASE_VIRTUAL)) { + pmbus_wait(client); rv = i2c_smbus_write_byte_data(client, PMBUS_PHASE, phase); + pmbus_update_ts(client, true); if (rv) return rv; } @@ -192,7 +237,7 @@ int pmbus_set_page(struct i2c_client *client, int page, int phase) return 0; } -EXPORT_SYMBOL_NS_GPL(pmbus_set_page, PMBUS); +EXPORT_SYMBOL_NS_GPL(pmbus_set_page, "PMBUS"); int pmbus_write_byte(struct i2c_client *client, int page, u8 value) { @@ -202,9 +247,13 @@ int pmbus_write_byte(struct i2c_client *client, int page, u8 value) if (rv < 0) return rv; - return i2c_smbus_write_byte(client, value); + pmbus_wait(client); + rv = i2c_smbus_write_byte(client, value); + pmbus_update_ts(client, true); + + return rv; } -EXPORT_SYMBOL_NS_GPL(pmbus_write_byte, PMBUS); +EXPORT_SYMBOL_NS_GPL(pmbus_write_byte, "PMBUS"); /* * _pmbus_write_byte() is similar to pmbus_write_byte(), but checks if @@ -233,10 +282,13 @@ int pmbus_write_word_data(struct i2c_client *client, int page, u8 reg, if (rv < 0) return rv; - return i2c_smbus_write_word_data(client, reg, word); -} -EXPORT_SYMBOL_NS_GPL(pmbus_write_word_data, PMBUS); + pmbus_wait(client); + rv = i2c_smbus_write_word_data(client, reg, word); + pmbus_update_ts(client, true); + return rv; +} +EXPORT_SYMBOL_NS_GPL(pmbus_write_word_data, "PMBUS"); static int pmbus_write_virt_reg(struct i2c_client *client, int page, int reg, u16 word) @@ -326,14 +378,14 @@ int pmbus_update_fan(struct i2c_client *client, int page, int id, u8 to; from = _pmbus_read_byte_data(client, page, - pmbus_fan_config_registers[id]); + pmbus_fan_config_registers[id]); if (from < 0) return from; to = (from & ~mask) | (config & mask); if (to != from) { rv = _pmbus_write_byte_data(client, page, - pmbus_fan_config_registers[id], to); + pmbus_fan_config_registers[id], to); if (rv < 0) return rv; } @@ -341,7 +393,7 @@ int pmbus_update_fan(struct i2c_client *client, int page, int id, return _pmbus_write_word_data(client, page, pmbus_fan_command_registers[id], command); } -EXPORT_SYMBOL_NS_GPL(pmbus_update_fan, PMBUS); +EXPORT_SYMBOL_NS_GPL(pmbus_update_fan, "PMBUS"); int pmbus_read_word_data(struct i2c_client *client, int page, int phase, u8 reg) { @@ -351,9 +403,13 @@ int pmbus_read_word_data(struct i2c_client *client, int page, int phase, u8 reg) if (rv < 0) return rv; - return i2c_smbus_read_word_data(client, reg); + pmbus_wait(client); + rv = i2c_smbus_read_word_data(client, reg); + pmbus_update_ts(client, false); + + return rv; } -EXPORT_SYMBOL_NS_GPL(pmbus_read_word_data, PMBUS); +EXPORT_SYMBOL_NS_GPL(pmbus_read_word_data, "PMBUS"); static int pmbus_read_virt_reg(struct i2c_client *client, int page, int reg) { @@ -410,9 +466,13 @@ int pmbus_read_byte_data(struct i2c_client *client, int page, u8 reg) if (rv < 0) return rv; - return i2c_smbus_read_byte_data(client, reg); + pmbus_wait(client); + rv = i2c_smbus_read_byte_data(client, reg); + pmbus_update_ts(client, false); + + return rv; } -EXPORT_SYMBOL_NS_GPL(pmbus_read_byte_data, PMBUS); +EXPORT_SYMBOL_NS_GPL(pmbus_read_byte_data, "PMBUS"); int pmbus_write_byte_data(struct i2c_client *client, int page, u8 reg, u8 value) { @@ -422,9 +482,13 @@ int pmbus_write_byte_data(struct i2c_client *client, int page, u8 reg, u8 value) if (rv < 0) return rv; - return i2c_smbus_write_byte_data(client, reg, value); + pmbus_wait(client); + rv = i2c_smbus_write_byte_data(client, reg, value); + pmbus_update_ts(client, true); + + return rv; } -EXPORT_SYMBOL_NS_GPL(pmbus_write_byte_data, PMBUS); +EXPORT_SYMBOL_NS_GPL(pmbus_write_byte_data, "PMBUS"); int pmbus_update_byte_data(struct i2c_client *client, int page, u8 reg, u8 mask, u8 value) @@ -443,7 +507,7 @@ int pmbus_update_byte_data(struct i2c_client *client, int page, u8 reg, return rv; } -EXPORT_SYMBOL_NS_GPL(pmbus_update_byte_data, PMBUS); +EXPORT_SYMBOL_NS_GPL(pmbus_update_byte_data, "PMBUS"); static int pmbus_read_block_data(struct i2c_client *client, int page, u8 reg, char *data_buf) @@ -454,7 +518,11 @@ static int pmbus_read_block_data(struct i2c_client *client, int page, u8 reg, if (rv < 0) return rv; - return i2c_smbus_read_block_data(client, reg, data_buf); + pmbus_wait(client); + rv = i2c_smbus_read_block_data(client, reg, data_buf); + pmbus_update_ts(client, false); + + return rv; } static struct pmbus_sensor *pmbus_find_sensor(struct pmbus_data *data, int page, @@ -492,7 +560,7 @@ static int pmbus_get_fan_rate(struct i2c_client *client, int page, int id, } config = _pmbus_read_byte_data(client, page, - pmbus_fan_config_registers[id]); + pmbus_fan_config_registers[id]); if (config < 0) return config; @@ -510,14 +578,14 @@ int pmbus_get_fan_rate_device(struct i2c_client *client, int page, int id, { return pmbus_get_fan_rate(client, page, id, mode, false); } -EXPORT_SYMBOL_NS_GPL(pmbus_get_fan_rate_device, PMBUS); +EXPORT_SYMBOL_NS_GPL(pmbus_get_fan_rate_device, "PMBUS"); int pmbus_get_fan_rate_cached(struct i2c_client *client, int page, int id, enum pmbus_fan_mode mode) { return pmbus_get_fan_rate(client, page, id, mode, true); } -EXPORT_SYMBOL_NS_GPL(pmbus_get_fan_rate_cached, PMBUS); +EXPORT_SYMBOL_NS_GPL(pmbus_get_fan_rate_cached, "PMBUS"); static void pmbus_clear_fault_page(struct i2c_client *client, int page) { @@ -532,7 +600,7 @@ void pmbus_clear_faults(struct i2c_client *client) for (i = 0; i < data->info->pages; i++) pmbus_clear_fault_page(client, i); } -EXPORT_SYMBOL_NS_GPL(pmbus_clear_faults, PMBUS); +EXPORT_SYMBOL_NS_GPL(pmbus_clear_faults, "PMBUS"); static int pmbus_check_status_cml(struct i2c_client *client) { @@ -587,13 +655,13 @@ bool pmbus_check_byte_register(struct i2c_client *client, int page, int reg) { return pmbus_check_register(client, _pmbus_read_byte_data, page, reg); } -EXPORT_SYMBOL_NS_GPL(pmbus_check_byte_register, PMBUS); +EXPORT_SYMBOL_NS_GPL(pmbus_check_byte_register, "PMBUS"); bool pmbus_check_word_register(struct i2c_client *client, int page, int reg) { return pmbus_check_register(client, __pmbus_read_word_data, page, reg); } -EXPORT_SYMBOL_NS_GPL(pmbus_check_word_register, PMBUS); +EXPORT_SYMBOL_NS_GPL(pmbus_check_word_register, "PMBUS"); static bool __maybe_unused pmbus_check_block_register(struct i2c_client *client, int page, int reg) @@ -617,7 +685,7 @@ const struct pmbus_driver_info *pmbus_get_driver_info(struct i2c_client *client) return data->info; } -EXPORT_SYMBOL_NS_GPL(pmbus_get_driver_info, PMBUS); +EXPORT_SYMBOL_NS_GPL(pmbus_get_driver_info, "PMBUS"); static int pmbus_get_status(struct i2c_client *client, int page, int reg) { @@ -717,7 +785,7 @@ static s64 pmbus_reg2data_linear(struct pmbus_data *data, if (sensor->class == PSC_VOLTAGE_OUT) { /* LINEAR16 */ exponent = data->exponent[sensor->page]; - mantissa = (u16) sensor->data; + mantissa = (u16)sensor->data; } else { /* LINEAR11 */ exponent = ((s16)sensor->data) >> 11; mantissa = ((s16)((sensor->data & 0x7ff) << 5)) >> 5; @@ -1095,9 +1163,13 @@ static int pmbus_get_boolean(struct i2c_client *client, struct pmbus_boolean *b, regval = status & mask; if (regval) { - ret = _pmbus_write_byte_data(client, page, reg, regval); - if (ret) - goto unlock; + if (data->revision >= PMBUS_REV_12) { + ret = _pmbus_write_byte_data(client, page, reg, regval); + if (ret) + goto unlock; + } else { + pmbus_clear_fault_page(client, page); + } } if (s1 && s2) { s64 v1, v2; @@ -1394,8 +1466,7 @@ static int pmbus_add_label(struct pmbus_data *data, snprintf(label->name, sizeof(label->name), "%s%d_label", name, seq); if (!index) { if (phase == 0xff) - strncpy(label->label, lstring, - sizeof(label->label) - 1); + strscpy(label->label, lstring); else snprintf(label->label, sizeof(label->label), "%s.%d", lstring, phase); @@ -1424,8 +1495,7 @@ struct pmbus_limit_attr { u16 reg; /* Limit register */ u16 sbit; /* Alarm attribute status bit */ bool update; /* True if register needs updates */ - bool low; /* True if low limit; for limits with compare - functions only */ + bool low; /* True if low limit; for limits with compare functions only */ const char *attr; /* Attribute name */ const char *alarm; /* Alarm attribute name */ }; @@ -2136,8 +2206,8 @@ static const u32 pmbus_fan_status_flags[] = { /* Precondition: FAN_CONFIG_x_y and FAN_COMMAND_x must exist for the fan ID */ static int pmbus_add_fan_ctrl(struct i2c_client *client, - struct pmbus_data *data, int index, int page, int id, - u8 config) + struct pmbus_data *data, int index, int page, + int id, u8 config) { struct pmbus_sensor *sensor; @@ -2149,7 +2219,7 @@ static int pmbus_add_fan_ctrl(struct i2c_client *client, return -ENOMEM; if (!((data->info->func[page] & PMBUS_HAVE_PWM12) || - (data->info->func[page] & PMBUS_HAVE_PWM34))) + (data->info->func[page] & PMBUS_HAVE_PWM34))) return 0; sensor = pmbus_add_sensor(data, "pwm", NULL, index, page, @@ -2450,9 +2520,11 @@ static int pmbus_read_coefficients(struct i2c_client *client, data.block[1] = attr->reg; data.block[2] = 0x01; + pmbus_wait(client); rv = i2c_smbus_xfer(client->adapter, client->addr, client->flags, I2C_SMBUS_WRITE, PMBUS_COEFFICIENTS, I2C_SMBUS_BLOCK_PROC_CALL, &data); + pmbus_update_ts(client, true); if (rv < 0) return rv; @@ -2590,6 +2662,56 @@ static void pmbus_remove_pec(void *dev) device_remove_file(dev, &dev_attr_pec); } +static void pmbus_init_wp(struct i2c_client *client, struct pmbus_data *data) +{ + int ret; + + switch (wp) { + case 0: + _pmbus_write_byte_data(client, -1, + PMBUS_WRITE_PROTECT, 0); + break; + + case 1: + _pmbus_write_byte_data(client, -1, + PMBUS_WRITE_PROTECT, PB_WP_VOUT); + break; + + case 2: + _pmbus_write_byte_data(client, -1, + PMBUS_WRITE_PROTECT, PB_WP_OP); + break; + + case 3: + _pmbus_write_byte_data(client, -1, + PMBUS_WRITE_PROTECT, PB_WP_ALL); + break; + + default: + /* Ignore the other values */ + break; + } + + ret = _pmbus_read_byte_data(client, -1, PMBUS_WRITE_PROTECT); + if (ret < 0) + return; + + switch (ret & PB_WP_ANY) { + case PB_WP_ALL: + data->flags |= PMBUS_OP_PROTECTED; + fallthrough; + case PB_WP_OP: + data->flags |= PMBUS_VOUT_PROTECTED; + fallthrough; + case PB_WP_VOUT: + data->flags |= PMBUS_WRITE_PROTECTED | PMBUS_SKIP_STATUS_CHECK; + break; + + default: + break; + } +} + static int pmbus_init_common(struct i2c_client *client, struct pmbus_data *data, struct pmbus_driver_info *info) { @@ -2604,7 +2726,10 @@ static int pmbus_init_common(struct i2c_client *client, struct pmbus_data *data, /* Enable PEC if the controller and bus supports it */ if (!(data->flags & PMBUS_NO_CAPABILITY)) { + pmbus_wait(client); ret = i2c_smbus_read_byte_data(client, PMBUS_CAPABILITY); + pmbus_update_ts(client, false); + if (ret >= 0 && (ret & PB_CAPABILITY_ERROR_CHECK)) { if (i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_PEC)) client->flags |= I2C_CLIENT_PEC; @@ -2617,10 +2742,16 @@ static int pmbus_init_common(struct i2c_client *client, struct pmbus_data *data, * Bail out if both registers are not supported. */ data->read_status = pmbus_read_status_word; + pmbus_wait(client); ret = i2c_smbus_read_word_data(client, PMBUS_STATUS_WORD); + pmbus_update_ts(client, false); + if (ret < 0 || ret == 0xffff) { data->read_status = pmbus_read_status_byte; + pmbus_wait(client); ret = i2c_smbus_read_byte_data(client, PMBUS_STATUS_BYTE); + pmbus_update_ts(client, false); + if (ret < 0 || ret == 0xff) { dev_err(dev, "PMBus status register not found\n"); return -ENODEV; @@ -2634,11 +2765,12 @@ static int pmbus_init_common(struct i2c_client *client, struct pmbus_data *data, * faults, and we should not try it. Also, in that case, writes into * limit registers need to be disabled. */ - if (!(data->flags & PMBUS_NO_WRITE_PROTECT)) { - ret = i2c_smbus_read_byte_data(client, PMBUS_WRITE_PROTECT); - if (ret > 0 && (ret & PB_WP_ANY)) - data->flags |= PMBUS_WRITE_PROTECTED | PMBUS_SKIP_STATUS_CHECK; - } + if (!(data->flags & PMBUS_NO_WRITE_PROTECT)) + pmbus_init_wp(client, data); + + ret = i2c_smbus_read_byte_data(client, PMBUS_REVISION); + if (ret >= 0) + data->revision = ret; if (data->info->pages) pmbus_clear_faults(client); @@ -2797,7 +2929,7 @@ static void pmbus_notify(struct pmbus_data *data, int page, int reg, int flags) } static int _pmbus_get_flags(struct pmbus_data *data, u8 page, unsigned int *flags, - unsigned int *event, bool notify) + unsigned int *event, bool notify) { int i, status; const struct pmbus_status_category *cat; @@ -2826,7 +2958,6 @@ static int _pmbus_get_flags(struct pmbus_data *data, u8 page, unsigned int *flag if (notify && status) pmbus_notify(data, page, cat->reg, status); - } /* @@ -2877,7 +3008,6 @@ static int _pmbus_get_flags(struct pmbus_data *data, u8 page, unsigned int *flag *event |= REGULATOR_EVENT_OVER_TEMP_WARN; } - return 0; } @@ -3090,12 +3220,16 @@ static int pmbus_regulator_set_voltage(struct regulator_dev *rdev, int min_uv, } static int pmbus_regulator_list_voltage(struct regulator_dev *rdev, - unsigned int selector) + unsigned int selector) { struct device *dev = rdev_get_dev(rdev); struct i2c_client *client = to_i2c_client(dev->parent); + struct pmbus_data *data = i2c_get_clientdata(client); int val, low, high; + if (data->flags & PMBUS_VOUT_PROTECTED) + return 0; + if (selector >= rdev->desc->n_voltages || selector < rdev->desc->linear_min_sel) return -EINVAL; @@ -3128,7 +3262,23 @@ const struct regulator_ops pmbus_regulator_ops = { .set_voltage = pmbus_regulator_set_voltage, .list_voltage = pmbus_regulator_list_voltage, }; -EXPORT_SYMBOL_NS_GPL(pmbus_regulator_ops, PMBUS); +EXPORT_SYMBOL_NS_GPL(pmbus_regulator_ops, "PMBUS"); + +int pmbus_regulator_init_cb(struct regulator_dev *rdev, + struct regulator_config *config) +{ + struct pmbus_data *data = config->driver_data; + struct regulation_constraints *constraints = rdev->constraints; + + if (data->flags & PMBUS_OP_PROTECTED) + constraints->valid_ops_mask &= ~REGULATOR_CHANGE_STATUS; + + if (data->flags & PMBUS_VOUT_PROTECTED) + constraints->valid_ops_mask &= ~REGULATOR_CHANGE_VOLTAGE; + + return 0; +} +EXPORT_SYMBOL_NS_GPL(pmbus_regulator_init_cb, "PMBUS"); static int pmbus_regulator_register(struct pmbus_data *data) { @@ -3162,17 +3312,16 @@ static int pmbus_regulator_register(struct pmbus_data *data) return 0; } -static int pmbus_regulator_notify(struct pmbus_data *data, int page, int event) +static void pmbus_regulator_notify(struct pmbus_data *data, int page, int event) { - int j; + int j; - for (j = 0; j < data->info->num_regulators; j++) { - if (page == rdev_get_id(data->rdevs[j])) { - regulator_notifier_call_chain(data->rdevs[j], event, NULL); - break; - } + for (j = 0; j < data->info->num_regulators; j++) { + if (page == rdev_get_id(data->rdevs[j])) { + regulator_notifier_call_chain(data->rdevs[j], event, NULL); + break; } - return 0; + } } #else static int pmbus_regulator_register(struct pmbus_data *data) @@ -3180,23 +3329,32 @@ static int pmbus_regulator_register(struct pmbus_data *data) return 0; } -static int pmbus_regulator_notify(struct pmbus_data *data, int page, int event) +static void pmbus_regulator_notify(struct pmbus_data *data, int page, int event) { - return 0; } #endif static int pmbus_write_smbalert_mask(struct i2c_client *client, u8 page, u8 reg, u8 val) { - return _pmbus_write_word_data(client, page, PMBUS_SMBALERT_MASK, reg | (val << 8)); + int ret; + + ret = _pmbus_write_word_data(client, page, PMBUS_SMBALERT_MASK, reg | (val << 8)); + + /* + * Clear fault systematically in case writing PMBUS_SMBALERT_MASK + * is not supported by the chip. + */ + pmbus_clear_fault_page(client, page); + + return ret; } static irqreturn_t pmbus_fault_handler(int irq, void *pdata) { struct pmbus_data *data = pdata; struct i2c_client *client = to_i2c_client(data->dev); - int i, status, event; + mutex_lock(&data->update_lock); for (i = 0; i < data->info->pages; i++) { _pmbus_get_flags(data, i, &status, &event, true); @@ -3260,7 +3418,6 @@ static int pmbus_irq_setup(struct i2c_client *client, struct pmbus_data *data) static struct dentry *pmbus_debugfs_dir; /* pmbus debugfs directory */ -#if IS_ENABLED(CONFIG_DEBUG_FS) static int pmbus_debugfs_get(void *data, u64 *val) { int rc; @@ -3303,8 +3460,8 @@ static int pmbus_debugfs_get_status(void *data, u64 *val) DEFINE_DEBUGFS_ATTRIBUTE(pmbus_debugfs_ops_status, pmbus_debugfs_get_status, NULL, "0x%04llx\n"); -static ssize_t pmbus_debugfs_mfr_read(struct file *file, char __user *buf, - size_t count, loff_t *ppos) +static ssize_t pmbus_debugfs_block_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) { int rc; struct pmbus_debugfs_entry *entry = file->private_data; @@ -3329,51 +3486,98 @@ static ssize_t pmbus_debugfs_mfr_read(struct file *file, char __user *buf, return simple_read_from_buffer(buf, count, ppos, data, rc); } -static const struct file_operations pmbus_debugfs_ops_mfr = { +static const struct file_operations pmbus_debugfs_block_ops = { .llseek = noop_llseek, - .read = pmbus_debugfs_mfr_read, + .read = pmbus_debugfs_block_read, .write = NULL, .open = simple_open, }; -static void pmbus_remove_debugfs(void *data) +static void pmbus_remove_symlink(void *symlink) { - struct dentry *entry = data; - - debugfs_remove_recursive(entry); + debugfs_remove(symlink); } -static int pmbus_init_debugfs(struct i2c_client *client, - struct pmbus_data *data) +struct pmbus_debugfs_data { + u8 reg; + u32 flag; + const char *name; +}; + +static const struct pmbus_debugfs_data pmbus_debugfs_block_data[] = { + { .reg = PMBUS_MFR_ID, .name = "mfr_id" }, + { .reg = PMBUS_MFR_MODEL, .name = "mfr_model" }, + { .reg = PMBUS_MFR_REVISION, .name = "mfr_revision" }, + { .reg = PMBUS_MFR_LOCATION, .name = "mfr_location" }, + { .reg = PMBUS_MFR_DATE, .name = "mfr_date" }, + { .reg = PMBUS_MFR_SERIAL, .name = "mfr_serial" }, +}; + +static const struct pmbus_debugfs_data pmbus_debugfs_status_data[] = { + { .reg = PMBUS_STATUS_VOUT, .flag = PMBUS_HAVE_STATUS_VOUT, .name = "status%d_vout" }, + { .reg = PMBUS_STATUS_IOUT, .flag = PMBUS_HAVE_STATUS_IOUT, .name = "status%d_iout" }, + { .reg = PMBUS_STATUS_INPUT, .flag = PMBUS_HAVE_STATUS_INPUT, .name = "status%d_input" }, + { .reg = PMBUS_STATUS_TEMPERATURE, .flag = PMBUS_HAVE_STATUS_TEMP, + .name = "status%d_temp" }, + { .reg = PMBUS_STATUS_FAN_12, .flag = PMBUS_HAVE_STATUS_FAN12, .name = "status%d_fan12" }, + { .reg = PMBUS_STATUS_FAN_34, .flag = PMBUS_HAVE_STATUS_FAN34, .name = "status%d_fan34" }, + { .reg = PMBUS_STATUS_CML, .name = "status%d_cml" }, + { .reg = PMBUS_STATUS_OTHER, .name = "status%d_other" }, + { .reg = PMBUS_STATUS_MFR_SPECIFIC, .name = "status%d_mfr" }, +}; + +static void pmbus_init_debugfs(struct i2c_client *client, + struct pmbus_data *data) { - int i, idx = 0; - char name[PMBUS_NAME_SIZE]; + struct dentry *symlink_d, *debugfs = client->debugfs; struct pmbus_debugfs_entry *entries; + const char *pathname, *symlink; + char name[PMBUS_NAME_SIZE]; + int page, i, idx = 0; - if (!pmbus_debugfs_dir) - return -ENODEV; + /* + * client->debugfs may be NULL or an ERR_PTR(). dentry_path_raw() + * does not check if its parameters are valid, so validate + * client->debugfs before using it. + */ + if (!pmbus_debugfs_dir || IS_ERR_OR_NULL(debugfs)) + return; /* - * Create the debugfs directory for this device. Use the hwmon device - * name to avoid conflicts (hwmon numbers are globally unique). + * Backwards compatibility: Create symlink from /pmbus/<hwmon_device> + * to i2c debugfs directory. */ - data->debugfs = debugfs_create_dir(dev_name(data->hwmon_dev), - pmbus_debugfs_dir); - if (IS_ERR_OR_NULL(data->debugfs)) { - data->debugfs = NULL; - return -ENODEV; - } + pathname = dentry_path_raw(debugfs, name, sizeof(name)); + if (IS_ERR(pathname)) + return; + + /* + * The path returned by dentry_path_raw() starts with '/'. Prepend it + * with ".." to get the symlink relative to the pmbus root directory. + */ + symlink = kasprintf(GFP_KERNEL, "..%s", pathname); + if (!symlink) + return; + + symlink_d = debugfs_create_symlink(dev_name(data->hwmon_dev), + pmbus_debugfs_dir, symlink); + kfree(symlink); + + devm_add_action_or_reset(data->dev, pmbus_remove_symlink, symlink_d); /* * Allocate the max possible entries we need. - * 6 entries device-specific - * 10 entries page-specific + * device specific: + * ARRAY_SIZE(pmbus_debugfs_block_data) + 2 + * page specific: + * ARRAY_SIZE(pmbus_debugfs_status_data) + 1 */ entries = devm_kcalloc(data->dev, - 6 + data->info->pages * 10, sizeof(*entries), - GFP_KERNEL); + ARRAY_SIZE(pmbus_debugfs_block_data) + 2 + + data->info->pages * (ARRAY_SIZE(pmbus_debugfs_status_data) + 1), + sizeof(*entries), GFP_KERNEL); if (!entries) - return -ENOMEM; + return; /* * Add device-specific entries. @@ -3383,175 +3587,67 @@ static int pmbus_init_debugfs(struct i2c_client *client, * assume that values of the following registers are the same for all * pages and report values only for page 0. */ - if (pmbus_check_block_register(client, 0, PMBUS_MFR_ID)) { - entries[idx].client = client; - entries[idx].page = 0; - entries[idx].reg = PMBUS_MFR_ID; - debugfs_create_file("mfr_id", 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops_mfr); - } - - if (pmbus_check_block_register(client, 0, PMBUS_MFR_MODEL)) { + if (!(data->flags & PMBUS_NO_CAPABILITY) && + pmbus_check_byte_register(client, 0, PMBUS_CAPABILITY)) { entries[idx].client = client; entries[idx].page = 0; - entries[idx].reg = PMBUS_MFR_MODEL; - debugfs_create_file("mfr_model", 0444, data->debugfs, + entries[idx].reg = PMBUS_CAPABILITY; + debugfs_create_file("capability", 0444, debugfs, &entries[idx++], - &pmbus_debugfs_ops_mfr); + &pmbus_debugfs_ops); } - - if (pmbus_check_block_register(client, 0, PMBUS_MFR_REVISION)) { + if (pmbus_check_byte_register(client, 0, PMBUS_REVISION)) { entries[idx].client = client; entries[idx].page = 0; - entries[idx].reg = PMBUS_MFR_REVISION; - debugfs_create_file("mfr_revision", 0444, data->debugfs, + entries[idx].reg = PMBUS_REVISION; + debugfs_create_file("pmbus_revision", 0444, debugfs, &entries[idx++], - &pmbus_debugfs_ops_mfr); + &pmbus_debugfs_ops); } - if (pmbus_check_block_register(client, 0, PMBUS_MFR_LOCATION)) { - entries[idx].client = client; - entries[idx].page = 0; - entries[idx].reg = PMBUS_MFR_LOCATION; - debugfs_create_file("mfr_location", 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops_mfr); - } - - if (pmbus_check_block_register(client, 0, PMBUS_MFR_DATE)) { - entries[idx].client = client; - entries[idx].page = 0; - entries[idx].reg = PMBUS_MFR_DATE; - debugfs_create_file("mfr_date", 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops_mfr); - } + for (i = 0; i < ARRAY_SIZE(pmbus_debugfs_block_data); i++) { + const struct pmbus_debugfs_data *d = &pmbus_debugfs_block_data[i]; - if (pmbus_check_block_register(client, 0, PMBUS_MFR_SERIAL)) { - entries[idx].client = client; - entries[idx].page = 0; - entries[idx].reg = PMBUS_MFR_SERIAL; - debugfs_create_file("mfr_serial", 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops_mfr); + if (pmbus_check_block_register(client, 0, d->reg)) { + entries[idx].client = client; + entries[idx].page = 0; + entries[idx].reg = d->reg; + debugfs_create_file(d->name, 0444, debugfs, + &entries[idx++], + &pmbus_debugfs_block_ops); + } } /* Add page specific entries */ - for (i = 0; i < data->info->pages; ++i) { + for (page = 0; page < data->info->pages; ++page) { /* Check accessibility of status register if it's not page 0 */ - if (!i || pmbus_check_status_register(client, i)) { + if (!page || pmbus_check_status_register(client, page)) { /* No need to set reg as we have special read op. */ entries[idx].client = client; - entries[idx].page = i; - scnprintf(name, PMBUS_NAME_SIZE, "status%d", i); - debugfs_create_file(name, 0444, data->debugfs, + entries[idx].page = page; + scnprintf(name, PMBUS_NAME_SIZE, "status%d", page); + debugfs_create_file(name, 0444, debugfs, &entries[idx++], &pmbus_debugfs_ops_status); } - if (data->info->func[i] & PMBUS_HAVE_STATUS_VOUT) { - entries[idx].client = client; - entries[idx].page = i; - entries[idx].reg = PMBUS_STATUS_VOUT; - scnprintf(name, PMBUS_NAME_SIZE, "status%d_vout", i); - debugfs_create_file(name, 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops); - } - - if (data->info->func[i] & PMBUS_HAVE_STATUS_IOUT) { - entries[idx].client = client; - entries[idx].page = i; - entries[idx].reg = PMBUS_STATUS_IOUT; - scnprintf(name, PMBUS_NAME_SIZE, "status%d_iout", i); - debugfs_create_file(name, 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops); - } - - if (data->info->func[i] & PMBUS_HAVE_STATUS_INPUT) { - entries[idx].client = client; - entries[idx].page = i; - entries[idx].reg = PMBUS_STATUS_INPUT; - scnprintf(name, PMBUS_NAME_SIZE, "status%d_input", i); - debugfs_create_file(name, 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops); - } - - if (data->info->func[i] & PMBUS_HAVE_STATUS_TEMP) { - entries[idx].client = client; - entries[idx].page = i; - entries[idx].reg = PMBUS_STATUS_TEMPERATURE; - scnprintf(name, PMBUS_NAME_SIZE, "status%d_temp", i); - debugfs_create_file(name, 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops); - } - - if (pmbus_check_byte_register(client, i, PMBUS_STATUS_CML)) { - entries[idx].client = client; - entries[idx].page = i; - entries[idx].reg = PMBUS_STATUS_CML; - scnprintf(name, PMBUS_NAME_SIZE, "status%d_cml", i); - debugfs_create_file(name, 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops); - } - - if (pmbus_check_byte_register(client, i, PMBUS_STATUS_OTHER)) { - entries[idx].client = client; - entries[idx].page = i; - entries[idx].reg = PMBUS_STATUS_OTHER; - scnprintf(name, PMBUS_NAME_SIZE, "status%d_other", i); - debugfs_create_file(name, 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops); - } - - if (pmbus_check_byte_register(client, i, - PMBUS_STATUS_MFR_SPECIFIC)) { - entries[idx].client = client; - entries[idx].page = i; - entries[idx].reg = PMBUS_STATUS_MFR_SPECIFIC; - scnprintf(name, PMBUS_NAME_SIZE, "status%d_mfr", i); - debugfs_create_file(name, 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops); - } - - if (data->info->func[i] & PMBUS_HAVE_STATUS_FAN12) { - entries[idx].client = client; - entries[idx].page = i; - entries[idx].reg = PMBUS_STATUS_FAN_12; - scnprintf(name, PMBUS_NAME_SIZE, "status%d_fan12", i); - debugfs_create_file(name, 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops); - } - - if (data->info->func[i] & PMBUS_HAVE_STATUS_FAN34) { - entries[idx].client = client; - entries[idx].page = i; - entries[idx].reg = PMBUS_STATUS_FAN_34; - scnprintf(name, PMBUS_NAME_SIZE, "status%d_fan34", i); - debugfs_create_file(name, 0444, data->debugfs, - &entries[idx++], - &pmbus_debugfs_ops); + for (i = 0; i < ARRAY_SIZE(pmbus_debugfs_status_data); i++) { + const struct pmbus_debugfs_data *d = + &pmbus_debugfs_status_data[i]; + + if ((data->info->func[page] & d->flag) || + (!d->flag && pmbus_check_byte_register(client, page, d->reg))) { + entries[idx].client = client; + entries[idx].page = page; + entries[idx].reg = d->reg; + scnprintf(name, PMBUS_NAME_SIZE, d->name, page); + debugfs_create_file(name, 0444, debugfs, + &entries[idx++], + &pmbus_debugfs_ops); + } } } - - return devm_add_action_or_reset(data->dev, - pmbus_remove_debugfs, data->debugfs); -} -#else -static int pmbus_init_debugfs(struct i2c_client *client, - struct pmbus_data *data) -{ - return 0; } -#endif /* IS_ENABLED(CONFIG_DEBUG_FS) */ int pmbus_do_probe(struct i2c_client *client, struct pmbus_driver_info *info) { @@ -3623,8 +3719,8 @@ int pmbus_do_probe(struct i2c_client *client, struct pmbus_driver_info *info) data->groups[0] = &data->group; memcpy(data->groups + 1, info->groups, sizeof(void *) * groups_num); - data->hwmon_dev = devm_hwmon_device_register_with_groups(dev, - name, data, data->groups); + data->hwmon_dev = devm_hwmon_device_register_with_groups(dev, name, + data, data->groups); if (IS_ERR(data->hwmon_dev)) { dev_err(dev, "Failed to register hwmon device\n"); return PTR_ERR(data->hwmon_dev); @@ -3638,21 +3734,25 @@ int pmbus_do_probe(struct i2c_client *client, struct pmbus_driver_info *info) if (ret) return ret; - ret = pmbus_init_debugfs(client, data); - if (ret) - dev_warn(dev, "Failed to register debugfs\n"); + pmbus_init_debugfs(client, data); return 0; } -EXPORT_SYMBOL_NS_GPL(pmbus_do_probe, PMBUS); +EXPORT_SYMBOL_NS_GPL(pmbus_do_probe, "PMBUS"); struct dentry *pmbus_get_debugfs_dir(struct i2c_client *client) { - struct pmbus_data *data = i2c_get_clientdata(client); - - return data->debugfs; + /* + * client->debugfs may be an ERR_PTR(). Returning that to + * the calling code would potentially require additional + * complexity in the calling code and otherwise add no + * value. Return NULL in that case. + */ + if (IS_ERR_OR_NULL(client->debugfs)) + return NULL; + return client->debugfs; } -EXPORT_SYMBOL_NS_GPL(pmbus_get_debugfs_dir, PMBUS); +EXPORT_SYMBOL_NS_GPL(pmbus_get_debugfs_dir, "PMBUS"); int pmbus_lock_interruptible(struct i2c_client *client) { @@ -3660,7 +3760,7 @@ int pmbus_lock_interruptible(struct i2c_client *client) return mutex_lock_interruptible(&data->update_lock); } -EXPORT_SYMBOL_NS_GPL(pmbus_lock_interruptible, PMBUS); +EXPORT_SYMBOL_NS_GPL(pmbus_lock_interruptible, "PMBUS"); void pmbus_unlock(struct i2c_client *client) { @@ -3668,7 +3768,7 @@ void pmbus_unlock(struct i2c_client *client) mutex_unlock(&data->update_lock); } -EXPORT_SYMBOL_NS_GPL(pmbus_unlock, PMBUS); +EXPORT_SYMBOL_NS_GPL(pmbus_unlock, "PMBUS"); static int __init pmbus_core_init(void) { diff --git a/drivers/hwmon/pmbus/pxe1610.c b/drivers/hwmon/pmbus/pxe1610.c index e2790a682dc8..6a4a978eca7e 100644 --- a/drivers/hwmon/pmbus/pxe1610.c +++ b/drivers/hwmon/pmbus/pxe1610.c @@ -127,9 +127,9 @@ static int pxe1610_probe(struct i2c_client *client) } static const struct i2c_device_id pxe1610_id[] = { - {"pxe1610", 0}, - {"pxe1110", 0}, - {"pxm1310", 0}, + {"pxe1610"}, + {"pxe1110"}, + {"pxm1310"}, {} }; @@ -148,4 +148,4 @@ module_i2c_driver(pxe1610_driver); MODULE_AUTHOR("Vijay Khemka <vijaykhemka@fb.com>"); MODULE_DESCRIPTION("PMBus driver for Infineon PXE1610, PXE1110 and PXM1310"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/q54sj108a2.c b/drivers/hwmon/pmbus/q54sj108a2.c index a235c1cdf4fe..4d7086d83aa3 100644 --- a/drivers/hwmon/pmbus/q54sj108a2.c +++ b/drivers/hwmon/pmbus/q54sj108a2.c @@ -421,4 +421,4 @@ module_i2c_driver(q54sj108a2_driver); MODULE_AUTHOR("Xiao.Ma <xiao.mx.ma@deltaww.com>"); MODULE_DESCRIPTION("PMBus driver for Delta Q54SJ108A2 series modules"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/stpddc60.c b/drivers/hwmon/pmbus/stpddc60.c index be9076dcc2db..5cb905ed8ae5 100644 --- a/drivers/hwmon/pmbus/stpddc60.c +++ b/drivers/hwmon/pmbus/stpddc60.c @@ -18,8 +18,8 @@ #define STPDDC60_MFR_UV_LIMIT_OFFSET 0xe6 static const struct i2c_device_id stpddc60_id[] = { - {"stpddc60", 0}, - {"bmr481", 0}, + {"stpddc60"}, + {"bmr481"}, {} }; MODULE_DEVICE_TABLE(i2c, stpddc60_id); @@ -246,4 +246,4 @@ module_i2c_driver(stpddc60_driver); MODULE_AUTHOR("Erik Rosen <erik.rosen@metormote.com>"); MODULE_DESCRIPTION("PMBus driver for ST STPDDC60"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/tda38640.c b/drivers/hwmon/pmbus/tda38640.c index c31889a036f0..07fe58c24485 100644 --- a/drivers/hwmon/pmbus/tda38640.c +++ b/drivers/hwmon/pmbus/tda38640.c @@ -195,7 +195,7 @@ static int tda38640_probe(struct i2c_client *client) } static const struct i2c_device_id tda38640_id[] = { - {"tda38640", 0}, + {"tda38640"}, {} }; MODULE_DEVICE_TABLE(i2c, tda38640_id); @@ -221,4 +221,4 @@ module_i2c_driver(tda38640_driver); MODULE_AUTHOR("Patrick Rudolph <patrick.rudolph@9elements.com>"); MODULE_DESCRIPTION("PMBus driver for Infineon TDA38640"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/tps25990.c b/drivers/hwmon/pmbus/tps25990.c new file mode 100644 index 000000000000..0d2655e69549 --- /dev/null +++ b/drivers/hwmon/pmbus/tps25990.c @@ -0,0 +1,436 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Copyright (c) 2024 BayLibre, SAS. +// Author: Jerome Brunet <jbrunet@baylibre.com> + +#include <linux/bitfield.h> +#include <linux/debugfs.h> +#include <linux/err.h> +#include <linux/hwmon-sysfs.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> + +#include "pmbus.h" + +#define TPS25990_READ_VAUX 0xd0 +#define TPS25990_READ_VIN_MIN 0xd1 +#define TPS25990_READ_VIN_PEAK 0xd2 +#define TPS25990_READ_IIN_PEAK 0xd4 +#define TPS25990_READ_PIN_PEAK 0xd5 +#define TPS25990_READ_TEMP_AVG 0xd6 +#define TPS25990_READ_TEMP_PEAK 0xd7 +#define TPS25990_READ_VOUT_MIN 0xda +#define TPS25990_READ_VIN_AVG 0xdc +#define TPS25990_READ_VOUT_AVG 0xdd +#define TPS25990_READ_IIN_AVG 0xde +#define TPS25990_READ_PIN_AVG 0xdf +#define TPS25990_VIREF 0xe0 +#define TPS25990_PK_MIN_AVG 0xea +#define PK_MIN_AVG_RST_PEAK BIT(7) +#define PK_MIN_AVG_RST_AVG BIT(6) +#define PK_MIN_AVG_RST_MIN BIT(5) +#define PK_MIN_AVG_AVG_CNT GENMASK(2, 0) +#define TPS25990_MFR_WRITE_PROTECT 0xf8 +#define TPS25990_UNLOCKED BIT(7) + +#define TPS25990_8B_SHIFT 2 +#define TPS25990_VIN_OVF_NUM 525100 +#define TPS25990_VIN_OVF_DIV 10163 +#define TPS25990_VIN_OVF_OFF 155 +#define TPS25990_IIN_OCF_NUM 953800 +#define TPS25990_IIN_OCF_DIV 129278 +#define TPS25990_IIN_OCF_OFF 157 + +#define PK_MIN_AVG_RST_MASK (PK_MIN_AVG_RST_PEAK | \ + PK_MIN_AVG_RST_AVG | \ + PK_MIN_AVG_RST_MIN) + +/* + * Arbitrary default Rimon value: 1kOhm + * This correspond to an overcurrent limit of 55A, close to the specified limit + * of un-stacked TPS25990 and makes further calculation easier to setup in + * sensor.conf, if necessary + */ +#define TPS25990_DEFAULT_RIMON 1000000000 + +static void tps25990_set_m(int *m, u32 rimon) +{ + u64 val = ((u64)*m) * rimon; + + /* Make sure m fits the s32 type */ + *m = DIV_ROUND_CLOSEST_ULL(val, 1000000); +} + +static int tps25990_mfr_write_protect_set(struct i2c_client *client, + u8 protect) +{ + u8 val; + + switch (protect) { + case 0: + val = 0xa2; + break; + case PB_WP_ALL: + val = 0x0; + break; + default: + return -EINVAL; + } + + return pmbus_write_byte_data(client, -1, TPS25990_MFR_WRITE_PROTECT, + val); +} + +static int tps25990_mfr_write_protect_get(struct i2c_client *client) +{ + int ret = pmbus_read_byte_data(client, -1, TPS25990_MFR_WRITE_PROTECT); + + if (ret < 0) + return ret; + + return (ret & TPS25990_UNLOCKED) ? 0 : PB_WP_ALL; +} + +static int tps25990_read_word_data(struct i2c_client *client, + int page, int phase, int reg) +{ + int ret; + + switch (reg) { + case PMBUS_VIRT_READ_VIN_MAX: + ret = pmbus_read_word_data(client, page, phase, + TPS25990_READ_VIN_PEAK); + break; + + case PMBUS_VIRT_READ_VIN_MIN: + ret = pmbus_read_word_data(client, page, phase, + TPS25990_READ_VIN_MIN); + break; + + case PMBUS_VIRT_READ_VIN_AVG: + ret = pmbus_read_word_data(client, page, phase, + TPS25990_READ_VIN_AVG); + break; + + case PMBUS_VIRT_READ_VOUT_MIN: + ret = pmbus_read_word_data(client, page, phase, + TPS25990_READ_VOUT_MIN); + break; + + case PMBUS_VIRT_READ_VOUT_AVG: + ret = pmbus_read_word_data(client, page, phase, + TPS25990_READ_VOUT_AVG); + break; + + case PMBUS_VIRT_READ_IIN_AVG: + ret = pmbus_read_word_data(client, page, phase, + TPS25990_READ_IIN_AVG); + break; + + case PMBUS_VIRT_READ_IIN_MAX: + ret = pmbus_read_word_data(client, page, phase, + TPS25990_READ_IIN_PEAK); + break; + + case PMBUS_VIRT_READ_TEMP_AVG: + ret = pmbus_read_word_data(client, page, phase, + TPS25990_READ_TEMP_AVG); + break; + + case PMBUS_VIRT_READ_TEMP_MAX: + ret = pmbus_read_word_data(client, page, phase, + TPS25990_READ_TEMP_PEAK); + break; + + case PMBUS_VIRT_READ_PIN_AVG: + ret = pmbus_read_word_data(client, page, phase, + TPS25990_READ_PIN_AVG); + break; + + case PMBUS_VIRT_READ_PIN_MAX: + ret = pmbus_read_word_data(client, page, phase, + TPS25990_READ_PIN_PEAK); + break; + + case PMBUS_VIRT_READ_VMON: + ret = pmbus_read_word_data(client, page, phase, + TPS25990_READ_VAUX); + break; + + case PMBUS_VIN_UV_WARN_LIMIT: + case PMBUS_VIN_UV_FAULT_LIMIT: + case PMBUS_VIN_OV_WARN_LIMIT: + case PMBUS_VOUT_UV_WARN_LIMIT: + case PMBUS_IIN_OC_WARN_LIMIT: + case PMBUS_OT_WARN_LIMIT: + case PMBUS_OT_FAULT_LIMIT: + case PMBUS_PIN_OP_WARN_LIMIT: + /* + * These registers provide an 8 bits value instead of a + * 10bits one. Just shifting twice the register value is + * enough to make the sensor type conversion work, even + * if the datasheet provides different m, b and R for + * those. + */ + ret = pmbus_read_word_data(client, page, phase, reg); + if (ret < 0) + break; + ret <<= TPS25990_8B_SHIFT; + break; + + case PMBUS_VIN_OV_FAULT_LIMIT: + ret = pmbus_read_word_data(client, page, phase, reg); + if (ret < 0) + break; + ret = DIV_ROUND_CLOSEST(ret * TPS25990_VIN_OVF_NUM, + TPS25990_VIN_OVF_DIV); + ret += TPS25990_VIN_OVF_OFF; + break; + + case PMBUS_IIN_OC_FAULT_LIMIT: + /* + * VIREF directly sets the over-current limit at which the eFuse + * will turn the FET off and trigger a fault. Expose it through + * this generic property instead of a manufacturer specific one. + */ + ret = pmbus_read_byte_data(client, page, TPS25990_VIREF); + if (ret < 0) + break; + ret = DIV_ROUND_CLOSEST(ret * TPS25990_IIN_OCF_NUM, + TPS25990_IIN_OCF_DIV); + ret += TPS25990_IIN_OCF_OFF; + break; + + case PMBUS_VIRT_SAMPLES: + ret = pmbus_read_byte_data(client, page, TPS25990_PK_MIN_AVG); + if (ret < 0) + break; + ret = 1 << FIELD_GET(PK_MIN_AVG_AVG_CNT, ret); + break; + + case PMBUS_VIRT_RESET_TEMP_HISTORY: + case PMBUS_VIRT_RESET_VIN_HISTORY: + case PMBUS_VIRT_RESET_IIN_HISTORY: + case PMBUS_VIRT_RESET_PIN_HISTORY: + case PMBUS_VIRT_RESET_VOUT_HISTORY: + ret = 0; + break; + + default: + ret = -ENODATA; + break; + } + + return ret; +} + +static int tps25990_write_word_data(struct i2c_client *client, + int page, int reg, u16 value) +{ + int ret; + + switch (reg) { + case PMBUS_VIN_UV_WARN_LIMIT: + case PMBUS_VIN_UV_FAULT_LIMIT: + case PMBUS_VIN_OV_WARN_LIMIT: + case PMBUS_VOUT_UV_WARN_LIMIT: + case PMBUS_IIN_OC_WARN_LIMIT: + case PMBUS_OT_WARN_LIMIT: + case PMBUS_OT_FAULT_LIMIT: + case PMBUS_PIN_OP_WARN_LIMIT: + value >>= TPS25990_8B_SHIFT; + value = clamp_val(value, 0, 0xff); + ret = pmbus_write_word_data(client, page, reg, value); + break; + + case PMBUS_VIN_OV_FAULT_LIMIT: + value -= TPS25990_VIN_OVF_OFF; + value = DIV_ROUND_CLOSEST(((unsigned int)value) * TPS25990_VIN_OVF_DIV, + TPS25990_VIN_OVF_NUM); + value = clamp_val(value, 0, 0xf); + ret = pmbus_write_word_data(client, page, reg, value); + break; + + case PMBUS_IIN_OC_FAULT_LIMIT: + value -= TPS25990_IIN_OCF_OFF; + value = DIV_ROUND_CLOSEST(((unsigned int)value) * TPS25990_IIN_OCF_DIV, + TPS25990_IIN_OCF_NUM); + value = clamp_val(value, 0, 0x3f); + ret = pmbus_write_byte_data(client, page, TPS25990_VIREF, value); + break; + + case PMBUS_VIRT_SAMPLES: + value = clamp_val(value, 1, 1 << PK_MIN_AVG_AVG_CNT); + value = ilog2(value); + ret = pmbus_update_byte_data(client, page, TPS25990_PK_MIN_AVG, + PK_MIN_AVG_AVG_CNT, + FIELD_PREP(PK_MIN_AVG_AVG_CNT, value)); + break; + + case PMBUS_VIRT_RESET_TEMP_HISTORY: + case PMBUS_VIRT_RESET_VIN_HISTORY: + case PMBUS_VIRT_RESET_IIN_HISTORY: + case PMBUS_VIRT_RESET_PIN_HISTORY: + case PMBUS_VIRT_RESET_VOUT_HISTORY: + /* + * TPS25990 has history resets based on MIN/AVG/PEAK instead of per + * sensor type. Exposing this quirk in hwmon is not desirable so + * reset MIN, AVG and PEAK together. Even is there effectively only + * one reset, which resets everything, expose the 5 entries so + * userspace is not required map a sensor type to another to trigger + * a reset + */ + ret = pmbus_update_byte_data(client, 0, TPS25990_PK_MIN_AVG, + PK_MIN_AVG_RST_MASK, + PK_MIN_AVG_RST_MASK); + break; + + default: + ret = -ENODATA; + break; + } + + return ret; +} + +static int tps25990_read_byte_data(struct i2c_client *client, + int page, int reg) +{ + int ret; + + switch (reg) { + case PMBUS_WRITE_PROTECT: + ret = tps25990_mfr_write_protect_get(client); + break; + + default: + ret = -ENODATA; + break; + } + + return ret; +} + +static int tps25990_write_byte_data(struct i2c_client *client, + int page, int reg, u8 byte) +{ + int ret; + + switch (reg) { + case PMBUS_WRITE_PROTECT: + ret = tps25990_mfr_write_protect_set(client, byte); + break; + + default: + ret = -ENODATA; + break; + } + + return ret; +} + +#if IS_ENABLED(CONFIG_SENSORS_TPS25990_REGULATOR) +static const struct regulator_desc tps25990_reg_desc[] = { + PMBUS_REGULATOR_ONE("vout"), +}; +#endif + +static const struct pmbus_driver_info tps25990_base_info = { + .pages = 1, + .format[PSC_VOLTAGE_IN] = direct, + .m[PSC_VOLTAGE_IN] = 5251, + .b[PSC_VOLTAGE_IN] = 0, + .R[PSC_VOLTAGE_IN] = -2, + .format[PSC_VOLTAGE_OUT] = direct, + .m[PSC_VOLTAGE_OUT] = 5251, + .b[PSC_VOLTAGE_OUT] = 0, + .R[PSC_VOLTAGE_OUT] = -2, + .format[PSC_TEMPERATURE] = direct, + .m[PSC_TEMPERATURE] = 140, + .b[PSC_TEMPERATURE] = 32100, + .R[PSC_TEMPERATURE] = -2, + /* + * Current and Power measurement depends on the ohm value + * of Rimon. m is multiplied by 1000 below to have an integer + * and -3 is added to R to compensate. + */ + .format[PSC_CURRENT_IN] = direct, + .m[PSC_CURRENT_IN] = 9538, + .b[PSC_CURRENT_IN] = 0, + .R[PSC_CURRENT_IN] = -6, + .format[PSC_POWER] = direct, + .m[PSC_POWER] = 4901, + .b[PSC_POWER] = 0, + .R[PSC_POWER] = -7, + .func[0] = (PMBUS_HAVE_VIN | + PMBUS_HAVE_VOUT | + PMBUS_HAVE_VMON | + PMBUS_HAVE_IIN | + PMBUS_HAVE_PIN | + PMBUS_HAVE_TEMP | + PMBUS_HAVE_STATUS_VOUT | + PMBUS_HAVE_STATUS_IOUT | + PMBUS_HAVE_STATUS_INPUT | + PMBUS_HAVE_STATUS_TEMP | + PMBUS_HAVE_SAMPLES), + .read_word_data = tps25990_read_word_data, + .write_word_data = tps25990_write_word_data, + .read_byte_data = tps25990_read_byte_data, + .write_byte_data = tps25990_write_byte_data, + +#if IS_ENABLED(CONFIG_SENSORS_TPS25990_REGULATOR) + .reg_desc = tps25990_reg_desc, + .num_regulators = ARRAY_SIZE(tps25990_reg_desc), +#endif +}; + +static const struct i2c_device_id tps25990_i2c_id[] = { + { "tps25990" }, + {} +}; +MODULE_DEVICE_TABLE(i2c, tps25990_i2c_id); + +static const struct of_device_id tps25990_of_match[] = { + { .compatible = "ti,tps25990" }, + {} +}; +MODULE_DEVICE_TABLE(of, tps25990_of_match); + +static int tps25990_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + struct pmbus_driver_info *info; + u32 rimon = TPS25990_DEFAULT_RIMON; + int ret; + + ret = device_property_read_u32(dev, "ti,rimon-micro-ohms", &rimon); + if (ret < 0 && ret != -EINVAL) + return dev_err_probe(dev, ret, "failed to get rimon\n"); + + info = devm_kmemdup(dev, &tps25990_base_info, sizeof(*info), GFP_KERNEL); + if (!info) + return -ENOMEM; + + /* Adapt the current and power scale for each instance */ + tps25990_set_m(&info->m[PSC_CURRENT_IN], rimon); + tps25990_set_m(&info->m[PSC_POWER], rimon); + + return pmbus_do_probe(client, info); +} + +static struct i2c_driver tps25990_driver = { + .driver = { + .name = "tps25990", + .of_match_table = tps25990_of_match, + }, + .probe = tps25990_probe, + .id_table = tps25990_i2c_id, +}; +module_i2c_driver(tps25990_driver); + +MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>"); +MODULE_DESCRIPTION("PMBUS driver for TPS25990 eFuse"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/tps40422.c b/drivers/hwmon/pmbus/tps40422.c index ea0074a6b9fc..7c9fedaa068c 100644 --- a/drivers/hwmon/pmbus/tps40422.c +++ b/drivers/hwmon/pmbus/tps40422.c @@ -31,7 +31,7 @@ static int tps40422_probe(struct i2c_client *client) } static const struct i2c_device_id tps40422_id[] = { - {"tps40422", 0}, + {"tps40422"}, {} }; @@ -51,4 +51,4 @@ module_i2c_driver(tps40422_driver); MODULE_AUTHOR("Zhu Laiwen <richard.zhu@nsn.com>"); MODULE_DESCRIPTION("PMBus driver for TI TPS40422"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/tps53679.c b/drivers/hwmon/pmbus/tps53679.c index 5c9466244d70..63524dff5e75 100644 --- a/drivers/hwmon/pmbus/tps53679.c +++ b/drivers/hwmon/pmbus/tps53679.c @@ -308,4 +308,4 @@ module_i2c_driver(tps53679_driver); MODULE_AUTHOR("Vadim Pasternak <vadimp@mellanox.com>"); MODULE_DESCRIPTION("PMBus driver for Texas Instruments TPS53679"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/tps546d24.c b/drivers/hwmon/pmbus/tps546d24.c index 69bbdb6c680b..44d7a6df1dbd 100644 --- a/drivers/hwmon/pmbus/tps546d24.c +++ b/drivers/hwmon/pmbus/tps546d24.c @@ -42,7 +42,7 @@ static int tps546d24_probe(struct i2c_client *client) } static const struct i2c_device_id tps546d24_id[] = { - {"tps546d24", 0}, + {"tps546d24"}, {} }; MODULE_DEVICE_TABLE(i2c, tps546d24_id); @@ -68,4 +68,4 @@ module_i2c_driver(tps546d24_driver); MODULE_AUTHOR("Duke Du <dukedu83@gmail.com>"); MODULE_DESCRIPTION("PMBus driver for TI tps546d24"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/ucd9000.c b/drivers/hwmon/pmbus/ucd9000.c index 8d9d422450e5..9b0eadc81a2e 100644 --- a/drivers/hwmon/pmbus/ucd9000.c +++ b/drivers/hwmon/pmbus/ucd9000.c @@ -67,7 +67,6 @@ struct ucd9000_data { struct gpio_chip gpio; #endif struct dentry *debugfs; - ktime_t write_time; }; #define to_ucd9000_data(_info) container_of(_info, struct ucd9000_data, info) @@ -80,68 +79,11 @@ struct ucd9000_debugfs_entry { * It has been observed that the UCD90320 randomly fails register access when * doing another access right on the back of a register write. To mitigate this * make sure that there is a minimum delay between a write access and the - * following access. The 250us is based on experimental data. At a delay of - * 200us the issue seems to go away. Add a bit of extra margin to allow for + * following access. The 500 is based on experimental data. At a delay of + * 350us the issue seems to go away. Add a bit of extra margin to allow for * system to system differences. */ -#define UCD90320_WAIT_DELAY_US 250 - -static inline void ucd90320_wait(const struct ucd9000_data *data) -{ - s64 delta = ktime_us_delta(ktime_get(), data->write_time); - - if (delta < UCD90320_WAIT_DELAY_US) - udelay(UCD90320_WAIT_DELAY_US - delta); -} - -static int ucd90320_read_word_data(struct i2c_client *client, int page, - int phase, int reg) -{ - const struct pmbus_driver_info *info = pmbus_get_driver_info(client); - struct ucd9000_data *data = to_ucd9000_data(info); - - if (reg >= PMBUS_VIRT_BASE) - return -ENXIO; - - ucd90320_wait(data); - return pmbus_read_word_data(client, page, phase, reg); -} - -static int ucd90320_read_byte_data(struct i2c_client *client, int page, int reg) -{ - const struct pmbus_driver_info *info = pmbus_get_driver_info(client); - struct ucd9000_data *data = to_ucd9000_data(info); - - ucd90320_wait(data); - return pmbus_read_byte_data(client, page, reg); -} - -static int ucd90320_write_word_data(struct i2c_client *client, int page, - int reg, u16 word) -{ - const struct pmbus_driver_info *info = pmbus_get_driver_info(client); - struct ucd9000_data *data = to_ucd9000_data(info); - int ret; - - ucd90320_wait(data); - ret = pmbus_write_word_data(client, page, reg, word); - data->write_time = ktime_get(); - - return ret; -} - -static int ucd90320_write_byte(struct i2c_client *client, int page, u8 value) -{ - const struct pmbus_driver_info *info = pmbus_get_driver_info(client); - struct ucd9000_data *data = to_ucd9000_data(info); - int ret; - - ucd90320_wait(data); - ret = pmbus_write_byte(client, page, value); - data->write_time = ktime_get(); - - return ret; -} +#define UCD90320_WAIT_DELAY_US 500 static int ucd9000_get_fan_config(struct i2c_client *client, int fan) { @@ -667,10 +609,8 @@ static int ucd9000_probe(struct i2c_client *client) info->func[0] |= PMBUS_HAVE_FAN12 | PMBUS_HAVE_STATUS_FAN12 | PMBUS_HAVE_FAN34 | PMBUS_HAVE_STATUS_FAN34; } else if (mid->driver_data == ucd90320) { - info->read_byte_data = ucd90320_read_byte_data; - info->read_word_data = ucd90320_read_word_data; - info->write_byte = ucd90320_write_byte; - info->write_word_data = ucd90320_write_word_data; + /* Delay SMBus operations after a write */ + info->write_delay = UCD90320_WAIT_DELAY_US; } ucd9000_probe_gpio(client, mid, data); @@ -702,4 +642,4 @@ module_i2c_driver(ucd9000_driver); MODULE_AUTHOR("Guenter Roeck"); MODULE_DESCRIPTION("PMBus driver for TI UCD90xxx"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/ucd9200.c b/drivers/hwmon/pmbus/ucd9200.c index 7920d1c06df0..f68adaf4a110 100644 --- a/drivers/hwmon/pmbus/ucd9200.c +++ b/drivers/hwmon/pmbus/ucd9200.c @@ -209,4 +209,4 @@ module_i2c_driver(ucd9200_driver); MODULE_AUTHOR("Guenter Roeck"); MODULE_DESCRIPTION("PMBus driver for TI UCD922x, UCD924x"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/xdp710.c b/drivers/hwmon/pmbus/xdp710.c new file mode 100644 index 000000000000..660bbfe16e1e --- /dev/null +++ b/drivers/hwmon/pmbus/xdp710.c @@ -0,0 +1,131 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Driver for Infineon XDP710 Hot-Swap Controller + */ + +#include <linux/bitops.h> +#include <linux/i2c.h> +#include <linux/module.h> +#include <linux/of_device.h> +#include "pmbus.h" + +#define XDP710_REG_CFG 0xD3 +#define XDP710_V_SNS_CFG 0xD4 +#define XDP710_CS_RNG 0xD5 + +/* + * The table to map configuration register values + * to sense resistor values + */ +static const int micro_ohm_rsense[] = { + 200, 250, 300, 330, 400, 470, 500, 600, + 670, 700, 750, 800, 900, 1000, 1100, 1200, + 1250, 1300, 1400, 1500, 1600, 1700, 1800, 1900, + 2000, 2100, 2200, 2300, 2400, 2500, 2600, 2700, + 2800, 3000, 3100, 3200, 3300, 3400, 3500, 3600, + 3700, 3800, 3900, 4000, 4100, 4200, 4300, 4400, + 4500, 4600, 4700, 4800, 4900, 5000, 5500, 6000, + 6500, 7000, 7500, 8000, 8500, 9000, 9500, 10000 +}; + +static struct pmbus_driver_info xdp710_info = { + .pages = 1, + .format[PSC_VOLTAGE_IN] = direct, + .format[PSC_VOLTAGE_OUT] = direct, + .format[PSC_CURRENT_OUT] = direct, + .format[PSC_POWER] = direct, + .format[PSC_TEMPERATURE] = direct, + .m[PSC_VOLTAGE_IN] = 4653, + .b[PSC_VOLTAGE_IN] = 0, + .R[PSC_VOLTAGE_IN] = -2, + .m[PSC_VOLTAGE_OUT] = 4653, + .b[PSC_VOLTAGE_OUT] = 0, + .R[PSC_VOLTAGE_OUT] = -2, + .m[PSC_CURRENT_OUT] = 23165, + .b[PSC_CURRENT_OUT] = 0, + .R[PSC_CURRENT_OUT] = -2, + .m[PSC_POWER] = 4211, + .b[PSC_POWER] = 0, + .R[PSC_POWER] = -2, + .m[PSC_TEMPERATURE] = 52, + .b[PSC_TEMPERATURE] = 14321, + .R[PSC_TEMPERATURE] = -1, + .func[0] = + PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_PIN | + PMBUS_HAVE_TEMP | PMBUS_HAVE_IOUT | + PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_STATUS_TEMP, +}; + +static int xdp710_probe(struct i2c_client *client) +{ + struct pmbus_driver_info *info; + u8 cs_rng; + u8 vtlm_rng; + int rsense; + int ret; + int m = 0; + + info = devm_kmemdup(&client->dev, &xdp710_info, sizeof(*info), + GFP_KERNEL); + if (!info) + return -ENOMEM; + + ret = i2c_smbus_read_word_data(client, XDP710_CS_RNG); + if (ret < 0) { + dev_err(&client->dev, "Can't get CS_RNG"); + return ret; + } + cs_rng = (ret >> 6) & GENMASK(1, 0); + + ret = i2c_smbus_read_word_data(client, XDP710_V_SNS_CFG); + if (ret < 0) { + dev_err(&client->dev, "Can't get V_SNS_CFG"); + return ret; + } + vtlm_rng = ret & GENMASK(1, 0); + + ret = i2c_smbus_read_word_data(client, XDP710_REG_CFG); + if (ret < 0) { + dev_err(&client->dev, "Can't get REG_CFG"); + return ret; + } + ret &= GENMASK(5, 0); + rsense = micro_ohm_rsense[ret]; + + info->m[PSC_VOLTAGE_IN] <<= vtlm_rng; + info->m[PSC_VOLTAGE_OUT] <<= vtlm_rng; + + m = info->m[PSC_CURRENT_OUT]; + info->m[PSC_CURRENT_OUT] = DIV_ROUND_CLOSEST(m * rsense >> cs_rng, 1000); + + m = info->m[PSC_POWER]; + info->m[PSC_POWER] = DIV_ROUND_CLOSEST(m * rsense >> cs_rng, 1000); + + return pmbus_do_probe(client, info); +} + +static const struct of_device_id xdp710_of_match[] = { + { .compatible = "infineon,xdp710" }, + {} +}; + +static const struct i2c_device_id xdp710_id[] = { + {"xdp710"}, + { } +}; +MODULE_DEVICE_TABLE(i2c, xdp710_id); + +static struct i2c_driver xdp710_driver = { + .driver = { + .name = "xdp710", + .of_match_table = xdp710_of_match, + }, + .probe = xdp710_probe, + .id_table = xdp710_id, +}; +module_i2c_driver(xdp710_driver); + +MODULE_AUTHOR("Peter Yin <peter.yin@quantatw.com>"); +MODULE_DESCRIPTION("PMBus driver for XDP710 HSC"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/xdpe12284.c b/drivers/hwmon/pmbus/xdpe12284.c index 37d08dd427d5..f3aa6339d60d 100644 --- a/drivers/hwmon/pmbus/xdpe12284.c +++ b/drivers/hwmon/pmbus/xdpe12284.c @@ -164,9 +164,9 @@ static int xdpe122_probe(struct i2c_client *client) } static const struct i2c_device_id xdpe122_id[] = { - {"xdpe11280", 0}, - {"xdpe12254", 0}, - {"xdpe12284", 0}, + {"xdpe11280"}, + {"xdpe12254"}, + {"xdpe12284"}, {} }; @@ -194,4 +194,4 @@ module_i2c_driver(xdpe122_driver); MODULE_AUTHOR("Vadim Pasternak <vadimp@mellanox.com>"); MODULE_DESCRIPTION("PMBus driver for Infineon XDPE122 family"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/xdpe152c4.c b/drivers/hwmon/pmbus/xdpe152c4.c index 235e6b41ae4c..67a3d5fe1daf 100644 --- a/drivers/hwmon/pmbus/xdpe152c4.c +++ b/drivers/hwmon/pmbus/xdpe152c4.c @@ -44,8 +44,8 @@ static int xdpe152_probe(struct i2c_client *client) } static const struct i2c_device_id xdpe152_id[] = { - {"xdpe152c4", 0}, - {"xdpe15284", 0}, + {"xdpe152c4"}, + {"xdpe15284"}, {} }; @@ -72,4 +72,4 @@ module_i2c_driver(xdpe152_driver); MODULE_AUTHOR("Greg Schwendimann <greg.schwendimann@infineon.com>"); MODULE_DESCRIPTION("PMBus driver for Infineon XDPE152 family"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/pmbus/zl6100.c b/drivers/hwmon/pmbus/zl6100.c index 83458df0d0cf..97be69630cfb 100644 --- a/drivers/hwmon/pmbus/zl6100.c +++ b/drivers/hwmon/pmbus/zl6100.c @@ -22,8 +22,6 @@ enum chips { zl2004, zl2005, zl2006, zl2008, zl2105, zl2106, zl6100, zl6105, struct zl6100_data { int id; - ktime_t access; /* chip access time */ - int delay; /* Delay between chip accesses in uS */ struct pmbus_driver_info info; }; @@ -122,16 +120,6 @@ static u16 zl6100_d2l(long val) return (mantissa & 0x7ff) | ((exponent << 11) & 0xf800); } -/* Some chips need a delay between accesses */ -static inline void zl6100_wait(const struct zl6100_data *data) -{ - if (data->delay) { - s64 delta = ktime_us_delta(ktime_get(), data->access); - if (delta < data->delay) - udelay(data->delay - delta); - } -} - static int zl6100_read_word_data(struct i2c_client *client, int page, int phase, int reg) { @@ -174,9 +162,7 @@ static int zl6100_read_word_data(struct i2c_client *client, int page, break; } - zl6100_wait(data); ret = pmbus_read_word_data(client, page, phase, vreg); - data->access = ktime_get(); if (ret < 0) return ret; @@ -195,14 +181,11 @@ static int zl6100_read_word_data(struct i2c_client *client, int page, static int zl6100_read_byte_data(struct i2c_client *client, int page, int reg) { const struct pmbus_driver_info *info = pmbus_get_driver_info(client); - struct zl6100_data *data = to_zl6100_data(info); int ret, status; if (page >= info->pages) return -ENXIO; - zl6100_wait(data); - switch (reg) { case PMBUS_VIRT_STATUS_VMON: ret = pmbus_read_byte_data(client, 0, @@ -225,7 +208,6 @@ static int zl6100_read_byte_data(struct i2c_client *client, int page, int reg) ret = pmbus_read_byte_data(client, page, reg); break; } - data->access = ktime_get(); return ret; } @@ -234,8 +216,7 @@ static int zl6100_write_word_data(struct i2c_client *client, int page, int reg, u16 word) { const struct pmbus_driver_info *info = pmbus_get_driver_info(client); - struct zl6100_data *data = to_zl6100_data(info); - int ret, vreg; + int vreg; if (page >= info->pages) return -ENXIO; @@ -265,27 +246,7 @@ static int zl6100_write_word_data(struct i2c_client *client, int page, int reg, vreg = reg; } - zl6100_wait(data); - ret = pmbus_write_word_data(client, page, vreg, word); - data->access = ktime_get(); - - return ret; -} - -static int zl6100_write_byte(struct i2c_client *client, int page, u8 value) -{ - const struct pmbus_driver_info *info = pmbus_get_driver_info(client); - struct zl6100_data *data = to_zl6100_data(info); - int ret; - - if (page >= info->pages) - return -ENXIO; - - zl6100_wait(data); - ret = pmbus_write_byte(client, page, value); - data->access = ktime_get(); - - return ret; + return pmbus_write_word_data(client, page, vreg, word); } static const struct i2c_device_id zl6100_id[] = { @@ -363,14 +324,7 @@ static int zl6100_probe(struct i2c_client *client) * supported chips are known to require a wait time between I2C * accesses. */ - data->delay = delay; - - /* - * Since there was a direct I2C device access above, wait before - * accessing the chip again. - */ - data->access = ktime_get(); - zl6100_wait(data); + udelay(delay); info = &data->info; @@ -404,8 +358,7 @@ static int zl6100_probe(struct i2c_client *client) if (ret < 0) return ret; - data->access = ktime_get(); - zl6100_wait(data); + udelay(delay); if (ret & ZL8802_MFR_PHASES_MASK) info->func[1] |= PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT; @@ -418,8 +371,7 @@ static int zl6100_probe(struct i2c_client *client) if (ret < 0) return ret; - data->access = ktime_get(); - zl6100_wait(data); + udelay(delay); ret = i2c_smbus_read_word_data(client, ZL8802_MFR_USER_CONFIG); if (ret < 0) @@ -428,8 +380,7 @@ static int zl6100_probe(struct i2c_client *client) if (ret & ZL8802_MFR_XTEMP_ENABLE_2) info->func[i] |= PMBUS_HAVE_TEMP2; - data->access = ktime_get(); - zl6100_wait(data); + udelay(delay); } ret = i2c_smbus_read_word_data(client, ZL8802_MFR_USER_GLOBAL_CONFIG); if (ret < 0) @@ -446,13 +397,12 @@ static int zl6100_probe(struct i2c_client *client) info->func[0] |= PMBUS_HAVE_TEMP2; } - data->access = ktime_get(); - zl6100_wait(data); + udelay(delay); + info->access_delay = delay; info->read_word_data = zl6100_read_word_data; info->read_byte_data = zl6100_read_byte_data; info->write_word_data = zl6100_write_word_data; - info->write_byte = zl6100_write_byte; return pmbus_do_probe(client, info); } @@ -470,4 +420,4 @@ module_i2c_driver(zl6100_driver); MODULE_AUTHOR("Guenter Roeck"); MODULE_DESCRIPTION("PMBus driver for ZL6100 and compatibles"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(PMBUS); +MODULE_IMPORT_NS("PMBUS"); diff --git a/drivers/hwmon/powerz.c b/drivers/hwmon/powerz.c index cfb635f94d66..4e663d5b4e33 100644 --- a/drivers/hwmon/powerz.c +++ b/drivers/hwmon/powerz.c @@ -54,12 +54,6 @@ static const struct hwmon_channel_info *const powerz_info[] = { NULL }; -static umode_t powerz_is_visible(const void *data, enum hwmon_sensor_types type, - u32 attr, int channel) -{ - return 0444; -} - static int powerz_read_string(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, const char **str) { @@ -201,7 +195,7 @@ out: } static const struct hwmon_ops powerz_hwmon_ops = { - .is_visible = powerz_is_visible, + .visible = 0444, .read = powerz_read, .read_string = powerz_read_string, }; diff --git a/drivers/hwmon/powr1220.c b/drivers/hwmon/powr1220.c index 2388d0565e7e..5f9ca6543530 100644 --- a/drivers/hwmon/powr1220.c +++ b/drivers/hwmon/powr1220.c @@ -279,12 +279,11 @@ static const struct hwmon_chip_info powr1220_chip_info = { .info = powr1220_info, }; -static const struct i2c_device_id powr1220_ids[]; - static int powr1220_probe(struct i2c_client *client) { struct powr1220_data *data; struct device *hwmon_dev; + enum powr1xxx_chips chip; if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) return -ENODEV; @@ -293,7 +292,8 @@ static int powr1220_probe(struct i2c_client *client) if (!data) return -ENOMEM; - switch (i2c_match_id(powr1220_ids, client)->driver_data) { + chip = (uintptr_t)i2c_get_match_data(client); + switch (chip) { case powr1014: data->max_channels = 10; break; diff --git a/drivers/hwmon/pt5161l.c b/drivers/hwmon/pt5161l.c index 60361e39c474..20e3cfa625f1 100644 --- a/drivers/hwmon/pt5161l.c +++ b/drivers/hwmon/pt5161l.c @@ -63,7 +63,6 @@ struct pt5161l_fw_ver { /* Each client has this additional data */ struct pt5161l_data { struct i2c_client *client; - struct dentry *debugfs; struct pt5161l_fw_ver fw_ver; struct mutex lock; /* for atomic I2C transactions */ bool init_done; @@ -72,8 +71,6 @@ struct pt5161l_data { bool mm_wide_reg_access; /* MM assisted wide register access */ }; -static struct dentry *pt5161l_debugfs_dir; - /* * Write multiple data bytes to Aries over I2C */ @@ -427,7 +424,7 @@ static int pt5161l_read(struct device *dev, enum hwmon_sensor_types type, struct pt5161l_data *data = dev_get_drvdata(dev); int ret; u8 buf[8]; - long adc_code; + u32 adc_code; switch (attr) { case hwmon_temp_input: @@ -449,7 +446,7 @@ static int pt5161l_read(struct device *dev, enum hwmon_sensor_types type, adc_code = buf[3] << 24 | buf[2] << 16 | buf[1] << 8 | buf[0]; if (adc_code == 0 || adc_code >= 0x3ff) { - dev_dbg(dev, "Invalid adc_code %lx\n", adc_code); + dev_dbg(dev, "Invalid adc_code %x\n", adc_code); return -EIO; } @@ -568,21 +565,16 @@ static const struct file_operations pt5161l_debugfs_ops_hb_sts = { .open = simple_open, }; -static int pt5161l_init_debugfs(struct pt5161l_data *data) +static void pt5161l_init_debugfs(struct i2c_client *client, struct pt5161l_data *data) { - data->debugfs = debugfs_create_dir(dev_name(&data->client->dev), - pt5161l_debugfs_dir); - - debugfs_create_file("fw_ver", 0444, data->debugfs, data, + debugfs_create_file("fw_ver", 0444, client->debugfs, data, &pt5161l_debugfs_ops_fw_ver); - debugfs_create_file("fw_load_status", 0444, data->debugfs, data, + debugfs_create_file("fw_load_status", 0444, client->debugfs, data, &pt5161l_debugfs_ops_fw_load_sts); - debugfs_create_file("heartbeat_status", 0444, data->debugfs, data, + debugfs_create_file("heartbeat_status", 0444, client->debugfs, data, &pt5161l_debugfs_ops_hb_sts); - - return 0; } static int pt5161l_probe(struct i2c_client *client) @@ -604,17 +596,12 @@ static int pt5161l_probe(struct i2c_client *client) data, &pt5161l_chip_info, NULL); + if (IS_ERR(hwmon_dev)) + return PTR_ERR(hwmon_dev); - pt5161l_init_debugfs(data); - - return PTR_ERR_OR_ZERO(hwmon_dev); -} - -static void pt5161l_remove(struct i2c_client *client) -{ - struct pt5161l_data *data = i2c_get_clientdata(client); + pt5161l_init_debugfs(client, data); - debugfs_remove_recursive(data->debugfs); + return 0; } static const struct of_device_id __maybe_unused pt5161l_of_match[] = { @@ -630,7 +617,7 @@ static const struct acpi_device_id __maybe_unused pt5161l_acpi_match[] = { MODULE_DEVICE_TABLE(acpi, pt5161l_acpi_match); static const struct i2c_device_id pt5161l_id[] = { - { "pt5161l", 0 }, + { "pt5161l" }, {} }; MODULE_DEVICE_TABLE(i2c, pt5161l_id); @@ -643,24 +630,9 @@ static struct i2c_driver pt5161l_driver = { .acpi_match_table = ACPI_PTR(pt5161l_acpi_match), }, .probe = pt5161l_probe, - .remove = pt5161l_remove, .id_table = pt5161l_id, }; - -static int __init pt5161l_init(void) -{ - pt5161l_debugfs_dir = debugfs_create_dir("pt5161l", NULL); - return i2c_add_driver(&pt5161l_driver); -} - -static void __exit pt5161l_exit(void) -{ - i2c_del_driver(&pt5161l_driver); - debugfs_remove_recursive(pt5161l_debugfs_dir); -} - -module_init(pt5161l_init); -module_exit(pt5161l_exit); +module_i2c_driver(pt5161l_driver); MODULE_AUTHOR("Cosmo Chou <cosmo.chou@quantatw.com>"); MODULE_DESCRIPTION("Hwmon driver for Astera Labs Aries PCIe retimer"); diff --git a/drivers/hwmon/pwm-fan.c b/drivers/hwmon/pwm-fan.c index b67bc9e833c0..d506a5e7e033 100644 --- a/drivers/hwmon/pwm-fan.c +++ b/drivers/hwmon/pwm-fan.c @@ -7,12 +7,14 @@ * Author: Kamil Debski <k.debski@samsung.com> */ +#include <linux/delay.h> #include <linux/hwmon.h> #include <linux/interrupt.h> +#include <linux/mod_devicetable.h> #include <linux/module.h> #include <linux/mutex.h> -#include <linux/of.h> #include <linux/platform_device.h> +#include <linux/property.h> #include <linux/pwm.h> #include <linux/regulator/consumer.h> #include <linux/sysfs.h> @@ -25,7 +27,6 @@ struct pwm_fan_tach { int irq; atomic_t pulses; unsigned int rpm; - u8 pulses_per_revolution; }; enum pwm_fan_enable_mode { @@ -48,6 +49,7 @@ struct pwm_fan_ctx { int tach_count; struct pwm_fan_tach *tachs; + u32 *pulses_per_revolution; ktime_t sample_start; struct timer_list rpm_timer; @@ -59,6 +61,9 @@ struct pwm_fan_ctx { struct hwmon_chip_info info; struct hwmon_channel_info fan_channel; + + u64 pwm_duty_cycle_from_stopped; + u32 pwm_usec_from_stopped; }; /* This handler assumes self resetting edge triggered interrupt. */ @@ -85,7 +90,7 @@ static void sample_timer(struct timer_list *t) pulses = atomic_read(&tach->pulses); atomic_sub(pulses, &tach->pulses); tach->rpm = (unsigned int)(pulses * 1000 * 60) / - (tach->pulses_per_revolution * delta); + (ctx->pulses_per_revolution[i] * delta); } ctx->sample_start = ktime_get(); @@ -166,7 +171,7 @@ disable_regulator: return ret; } -static int pwm_fan_power_off(struct pwm_fan_ctx *ctx) +static int pwm_fan_power_off(struct pwm_fan_ctx *ctx, bool force_disable) { struct pwm_state *state = &ctx->pwm_state; bool enable_regulator = false; @@ -179,7 +184,8 @@ static int pwm_fan_power_off(struct pwm_fan_ctx *ctx) state, &enable_regulator); - state->enabled = false; + if (force_disable) + state->enabled = false; state->duty_cycle = 0; ret = pwm_apply_might_sleep(ctx->pwm, state); if (ret) { @@ -197,7 +203,9 @@ static int pwm_fan_power_off(struct pwm_fan_ctx *ctx) static int __set_pwm(struct pwm_fan_ctx *ctx, unsigned long pwm) { struct pwm_state *state = &ctx->pwm_state; + unsigned long final_pwm = pwm; unsigned long period; + bool update = false; int ret = 0; if (pwm > 0) { @@ -206,13 +214,24 @@ static int __set_pwm(struct pwm_fan_ctx *ctx, unsigned long pwm) return 0; period = state->period; - state->duty_cycle = DIV_ROUND_UP(pwm * (period - 1), MAX_PWM); + update = state->duty_cycle < ctx->pwm_duty_cycle_from_stopped; + if (update) + state->duty_cycle = ctx->pwm_duty_cycle_from_stopped; + else + state->duty_cycle = DIV_ROUND_UP(pwm * (period - 1), MAX_PWM); ret = pwm_apply_might_sleep(ctx->pwm, state); if (ret) return ret; ret = pwm_fan_power_on(ctx); + if (!ret && update) { + pwm = final_pwm; + state->duty_cycle = DIV_ROUND_UP(pwm * (period - 1), MAX_PWM); + usleep_range(ctx->pwm_usec_from_stopped, + ctx->pwm_usec_from_stopped * 2); + ret = pwm_apply_might_sleep(ctx->pwm, state); + } } else { - ret = pwm_fan_power_off(ctx); + ret = pwm_fan_power_off(ctx, false); } if (!ret) ctx->pwm_value = pwm; @@ -421,16 +440,14 @@ static const struct thermal_cooling_device_ops pwm_fan_cooling_ops = { .set_cur_state = pwm_fan_set_cur_state, }; -static int pwm_fan_of_get_cooling_data(struct device *dev, - struct pwm_fan_ctx *ctx) +static int pwm_fan_get_cooling_data(struct device *dev, struct pwm_fan_ctx *ctx) { - struct device_node *np = dev->of_node; int num, i, ret; - if (!of_property_present(np, "cooling-levels")) + if (!device_property_present(dev, "cooling-levels")) return 0; - ret = of_property_count_u32_elems(np, "cooling-levels"); + ret = device_property_count_u32(dev, "cooling-levels"); if (ret <= 0) { dev_err(dev, "Wrong data!\n"); return ret ? : -EINVAL; @@ -442,8 +459,8 @@ static int pwm_fan_of_get_cooling_data(struct device *dev, if (!ctx->pwm_fan_cooling_levels) return -ENOMEM; - ret = of_property_read_u32_array(np, "cooling-levels", - ctx->pwm_fan_cooling_levels, num); + ret = device_property_read_u32_array(dev, "cooling-levels", + ctx->pwm_fan_cooling_levels, num); if (ret) { dev_err(dev, "Property 'cooling-levels' cannot be read!\n"); return ret; @@ -466,10 +483,10 @@ static void pwm_fan_cleanup(void *__ctx) { struct pwm_fan_ctx *ctx = __ctx; - del_timer_sync(&ctx->rpm_timer); + timer_delete_sync(&ctx->rpm_timer); /* Switch off everything */ ctx->enable_mode = pwm_disable_reg_disable; - pwm_fan_power_off(ctx); + pwm_fan_power_off(ctx, true); } static int pwm_fan_probe(struct platform_device *pdev) @@ -480,6 +497,7 @@ static int pwm_fan_probe(struct platform_device *pdev) struct device *hwmon; int ret; const struct hwmon_channel_info **channels; + u32 initial_pwm, pwm_min_from_stopped = 0; u32 *fan_channel_config; int channel_count = 1; /* We always have a PWM channel. */ int i; @@ -527,11 +545,21 @@ static int pwm_fan_probe(struct platform_device *pdev) ctx->enable_mode = pwm_disable_reg_enable; + ret = pwm_fan_get_cooling_data(dev, ctx); + if (ret) + return ret; + + /* use maximum cooling level if provided */ + if (ctx->pwm_fan_cooling_levels) + initial_pwm = ctx->pwm_fan_cooling_levels[ctx->pwm_fan_max_state]; + else + initial_pwm = MAX_PWM; + /* * Set duty cycle to maximum allowed and enable PWM output as well as * the regulator. In case of error nothing is changed */ - ret = set_pwm(ctx, MAX_PWM); + ret = set_pwm(ctx, initial_pwm); if (ret) { dev_err(dev, "Failed to configure PWM: %d\n", ret); return ret; @@ -562,6 +590,20 @@ static int pwm_fan_probe(struct platform_device *pdev) if (!fan_channel_config) return -ENOMEM; ctx->fan_channel.config = fan_channel_config; + + ctx->pulses_per_revolution = devm_kmalloc_array(dev, + ctx->tach_count, + sizeof(*ctx->pulses_per_revolution), + GFP_KERNEL); + if (!ctx->pulses_per_revolution) + return -ENOMEM; + + /* Setup default pulses per revolution */ + for (i = 0; i < ctx->tach_count; i++) + ctx->pulses_per_revolution[i] = 2; + + device_property_read_u32_array(dev, "pulses-per-revolution", + ctx->pulses_per_revolution, ctx->tach_count); } channels = devm_kcalloc(dev, channel_count + 1, @@ -573,7 +615,6 @@ static int pwm_fan_probe(struct platform_device *pdev) for (i = 0; i < ctx->tach_count; i++) { struct pwm_fan_tach *tach = &ctx->tachs[i]; - u32 ppr = 2; tach->irq = platform_get_irq(pdev, i); if (tach->irq == -EPROBE_DEFER) @@ -589,12 +630,7 @@ static int pwm_fan_probe(struct platform_device *pdev) } } - of_property_read_u32_index(dev->of_node, - "pulses-per-revolution", - i, - &ppr); - tach->pulses_per_revolution = ppr; - if (!tach->pulses_per_revolution) { + if (!ctx->pulses_per_revolution[i]) { dev_err(dev, "pulses-per-revolution can't be zero.\n"); return -EINVAL; } @@ -602,7 +638,7 @@ static int pwm_fan_probe(struct platform_device *pdev) fan_channel_config[i] = HWMON_F_INPUT; dev_dbg(dev, "tach%d: irq=%d, pulses_per_revolution=%d\n", - i, tach->irq, tach->pulses_per_revolution); + i, tach->irq, ctx->pulses_per_revolution[i]); } if (ctx->tach_count > 0) { @@ -612,6 +648,19 @@ static int pwm_fan_probe(struct platform_device *pdev) channels[1] = &ctx->fan_channel; } + ret = device_property_read_u32(dev, "fan-stop-to-start-percent", + &pwm_min_from_stopped); + if (!ret && pwm_min_from_stopped) { + ctx->pwm_duty_cycle_from_stopped = + DIV_ROUND_UP_ULL(pwm_min_from_stopped * + (ctx->pwm_state.period - 1), + 100); + } + ret = device_property_read_u32(dev, "fan-stop-to-start-us", + &ctx->pwm_usec_from_stopped); + if (ret) + ctx->pwm_usec_from_stopped = 250000; + ctx->info.ops = &pwm_fan_hwmon_ops; ctx->info.info = channels; @@ -622,10 +671,6 @@ static int pwm_fan_probe(struct platform_device *pdev) return PTR_ERR(hwmon); } - ret = pwm_fan_of_get_cooling_data(dev, ctx); - if (ret) - return ret; - ctx->pwm_fan_state = ctx->pwm_fan_max_state; if (IS_ENABLED(CONFIG_THERMAL)) { cdev = devm_thermal_of_cooling_device_register(dev, @@ -654,7 +699,7 @@ static int pwm_fan_suspend(struct device *dev) { struct pwm_fan_ctx *ctx = dev_get_drvdata(dev); - return pwm_fan_power_off(ctx); + return pwm_fan_power_off(ctx, true); } static int pwm_fan_resume(struct device *dev) diff --git a/drivers/hwmon/qnap-mcu-hwmon.c b/drivers/hwmon/qnap-mcu-hwmon.c new file mode 100644 index 000000000000..29057514739c --- /dev/null +++ b/drivers/hwmon/qnap-mcu-hwmon.c @@ -0,0 +1,364 @@ +// SPDX-License-Identifier: GPL-2.0-only + +/* + * Driver for hwmon elements found on QNAP-MCU devices + * + * Copyright (C) 2024 Heiko Stuebner <heiko@sntech.de> + */ + +#include <linux/fwnode.h> +#include <linux/hwmon.h> +#include <linux/mfd/qnap-mcu.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/property.h> +#include <linux/thermal.h> + +struct qnap_mcu_hwmon { + struct qnap_mcu *mcu; + struct device *dev; + + unsigned int pwm_min; + unsigned int pwm_max; + + struct fwnode_handle *fan_node; + unsigned int fan_state; + unsigned int fan_max_state; + unsigned int *fan_cooling_levels; + + struct thermal_cooling_device *cdev; + struct hwmon_chip_info info; +}; + +static int qnap_mcu_hwmon_get_rpm(struct qnap_mcu_hwmon *hwm) +{ + static const u8 cmd[] = { '@', 'F', 'A' }; + u8 reply[6]; + int ret; + + /* poll the fan rpm */ + ret = qnap_mcu_exec(hwm->mcu, cmd, sizeof(cmd), reply, sizeof(reply)); + if (ret) + return ret; + + /* First 2 bytes must mirror the sent command */ + if (memcmp(cmd, reply, 2)) + return -EIO; + + return reply[4] * 30; +} + +static int qnap_mcu_hwmon_get_pwm(struct qnap_mcu_hwmon *hwm) +{ + static const u8 cmd[] = { '@', 'F', 'Z', '0' }; /* 0 = fan-id? */ + u8 reply[4]; + int ret; + + /* poll the fan pwm */ + ret = qnap_mcu_exec(hwm->mcu, cmd, sizeof(cmd), reply, sizeof(reply)); + if (ret) + return ret; + + /* First 3 bytes must mirror the sent command */ + if (memcmp(cmd, reply, 3)) + return -EIO; + + return reply[3]; +} + +static int qnap_mcu_hwmon_set_pwm(struct qnap_mcu_hwmon *hwm, u8 pwm) +{ + const u8 cmd[] = { '@', 'F', 'W', '0', pwm }; /* 0 = fan-id?, pwm 0-255 */ + + /* set the fan pwm */ + return qnap_mcu_exec_with_ack(hwm->mcu, cmd, sizeof(cmd)); +} + +static int qnap_mcu_hwmon_get_temp(struct qnap_mcu_hwmon *hwm) +{ + static const u8 cmd[] = { '@', 'T', '3' }; + u8 reply[4]; + int ret; + + /* poll the fan rpm */ + ret = qnap_mcu_exec(hwm->mcu, cmd, sizeof(cmd), reply, sizeof(reply)); + if (ret) + return ret; + + /* First bytes must mirror the sent command */ + if (memcmp(cmd, reply, sizeof(cmd))) + return -EIO; + + /* + * There is an unknown bit set in bit7. + * Bits [6:0] report the actual temperature as returned by the + * original qnap firmware-tools, so just drop bit7 for now. + */ + return (reply[3] & 0x7f) * 1000; +} + +static int qnap_mcu_hwmon_write(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long val) +{ + struct qnap_mcu_hwmon *hwm = dev_get_drvdata(dev); + + switch (attr) { + case hwmon_pwm_input: + if (val < 0 || val > 255) + return -EINVAL; + + if (val != 0) + val = clamp_val(val, hwm->pwm_min, hwm->pwm_max); + + return qnap_mcu_hwmon_set_pwm(hwm, val); + default: + return -EOPNOTSUPP; + } + + return 0; +} + +static int qnap_mcu_hwmon_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + struct qnap_mcu_hwmon *hwm = dev_get_drvdata(dev); + int ret; + + switch (type) { + case hwmon_pwm: + switch (attr) { + case hwmon_pwm_input: + ret = qnap_mcu_hwmon_get_pwm(hwm); + if (ret < 0) + return ret; + + *val = ret; + return 0; + default: + return -EOPNOTSUPP; + } + case hwmon_fan: + ret = qnap_mcu_hwmon_get_rpm(hwm); + if (ret < 0) + return ret; + + *val = ret; + return 0; + case hwmon_temp: + ret = qnap_mcu_hwmon_get_temp(hwm); + if (ret < 0) + return ret; + + *val = ret; + return 0; + default: + return -EOPNOTSUPP; + } +} + +static umode_t qnap_mcu_hwmon_is_visible(const void *data, + enum hwmon_sensor_types type, + u32 attr, int channel) +{ + switch (type) { + case hwmon_temp: + return 0444; + + case hwmon_pwm: + return 0644; + + case hwmon_fan: + return 0444; + + default: + return 0; + } +} + +static const struct hwmon_ops qnap_mcu_hwmon_hwmon_ops = { + .is_visible = qnap_mcu_hwmon_is_visible, + .read = qnap_mcu_hwmon_read, + .write = qnap_mcu_hwmon_write, +}; + +/* thermal cooling device callbacks */ +static int qnap_mcu_hwmon_get_max_state(struct thermal_cooling_device *cdev, + unsigned long *state) +{ + struct qnap_mcu_hwmon *hwm = cdev->devdata; + + if (!hwm) + return -EINVAL; + + *state = hwm->fan_max_state; + + return 0; +} + +static int qnap_mcu_hwmon_get_cur_state(struct thermal_cooling_device *cdev, + unsigned long *state) +{ + struct qnap_mcu_hwmon *hwm = cdev->devdata; + + if (!hwm) + return -EINVAL; + + *state = hwm->fan_state; + + return 0; +} + +static int qnap_mcu_hwmon_set_cur_state(struct thermal_cooling_device *cdev, + unsigned long state) +{ + struct qnap_mcu_hwmon *hwm = cdev->devdata; + int ret; + + if (!hwm || state > hwm->fan_max_state) + return -EINVAL; + + if (state == hwm->fan_state) + return 0; + + ret = qnap_mcu_hwmon_set_pwm(hwm, hwm->fan_cooling_levels[state]); + if (ret) + return ret; + + hwm->fan_state = state; + + return ret; +} + +static const struct thermal_cooling_device_ops qnap_mcu_hwmon_cooling_ops = { + .get_max_state = qnap_mcu_hwmon_get_max_state, + .get_cur_state = qnap_mcu_hwmon_get_cur_state, + .set_cur_state = qnap_mcu_hwmon_set_cur_state, +}; + +static void devm_fan_node_release(void *data) +{ + struct qnap_mcu_hwmon *hwm = data; + + fwnode_handle_put(hwm->fan_node); +} + +static int qnap_mcu_hwmon_get_cooling_data(struct device *dev, struct qnap_mcu_hwmon *hwm) +{ + struct fwnode_handle *fwnode; + int num, i, ret; + + fwnode = device_get_named_child_node(dev->parent, "fan-0"); + if (!fwnode) + return 0; + + /* if we found the fan-node, we're keeping it until device-unbind */ + hwm->fan_node = fwnode; + ret = devm_add_action_or_reset(dev, devm_fan_node_release, hwm); + if (ret) + return ret; + + num = fwnode_property_count_u32(fwnode, "cooling-levels"); + if (num <= 0) + return dev_err_probe(dev, num ? : -EINVAL, + "Failed to count elements in 'cooling-levels'\n"); + + hwm->fan_cooling_levels = devm_kcalloc(dev, num, sizeof(u32), + GFP_KERNEL); + if (!hwm->fan_cooling_levels) + return -ENOMEM; + + ret = fwnode_property_read_u32_array(fwnode, "cooling-levels", + hwm->fan_cooling_levels, num); + if (ret) + return dev_err_probe(dev, ret, "Failed to read 'cooling-levels'\n"); + + for (i = 0; i < num; i++) { + if (hwm->fan_cooling_levels[i] > hwm->pwm_max) + return dev_err_probe(dev, -EINVAL, "fan state[%d]:%d > %d\n", i, + hwm->fan_cooling_levels[i], hwm->pwm_max); + } + + hwm->fan_max_state = num - 1; + + return 0; +} + +static const struct hwmon_channel_info * const qnap_mcu_hwmon_channels[] = { + HWMON_CHANNEL_INFO(pwm, HWMON_PWM_INPUT), + HWMON_CHANNEL_INFO(fan, HWMON_F_INPUT), + HWMON_CHANNEL_INFO(temp, HWMON_T_INPUT), + NULL +}; + +static int qnap_mcu_hwmon_probe(struct platform_device *pdev) +{ + struct qnap_mcu *mcu = dev_get_drvdata(pdev->dev.parent); + const struct qnap_mcu_variant *variant = pdev->dev.platform_data; + struct qnap_mcu_hwmon *hwm; + struct thermal_cooling_device *cdev; + struct device *dev = &pdev->dev; + struct device *hwmon; + int ret; + + hwm = devm_kzalloc(dev, sizeof(*hwm), GFP_KERNEL); + if (!hwm) + return -ENOMEM; + + hwm->mcu = mcu; + hwm->dev = &pdev->dev; + hwm->pwm_min = variant->fan_pwm_min; + hwm->pwm_max = variant->fan_pwm_max; + + platform_set_drvdata(pdev, hwm); + + /* + * Set duty cycle to maximum allowed. + */ + ret = qnap_mcu_hwmon_set_pwm(hwm, hwm->pwm_max); + if (ret) + return ret; + + hwm->info.ops = &qnap_mcu_hwmon_hwmon_ops; + hwm->info.info = qnap_mcu_hwmon_channels; + + ret = qnap_mcu_hwmon_get_cooling_data(dev, hwm); + if (ret) + return ret; + + hwm->fan_state = hwm->fan_max_state; + + hwmon = devm_hwmon_device_register_with_info(dev, "qnapmcu", + hwm, &hwm->info, NULL); + if (IS_ERR(hwmon)) + return dev_err_probe(dev, PTR_ERR(hwmon), "Failed to register hwmon device\n"); + + /* + * Only register cooling device when we found cooling-levels. + * qnap_mcu_hwmon_get_cooling_data() will fail when reading malformed + * levels and only succeed with either no or correct cooling levels. + */ + if (IS_ENABLED(CONFIG_THERMAL) && hwm->fan_cooling_levels) { + cdev = devm_thermal_of_cooling_device_register(dev, + to_of_node(hwm->fan_node), "qnap-mcu-hwmon", + hwm, &qnap_mcu_hwmon_cooling_ops); + if (IS_ERR(cdev)) + return dev_err_probe(dev, PTR_ERR(cdev), + "Failed to register qnap-mcu-hwmon as cooling device\n"); + hwm->cdev = cdev; + } + + return 0; +} + +static struct platform_driver qnap_mcu_hwmon_driver = { + .probe = qnap_mcu_hwmon_probe, + .driver = { + .name = "qnap-mcu-hwmon", + }, +}; +module_platform_driver(qnap_mcu_hwmon_driver); + +MODULE_ALIAS("platform:qnap-mcu-hwmon"); +MODULE_AUTHOR("Heiko Stuebner <heiko@sntech.de>"); +MODULE_DESCRIPTION("QNAP MCU hwmon driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/raspberrypi-hwmon.c b/drivers/hwmon/raspberrypi-hwmon.c index 65cc52e47db0..a2938881ccd2 100644 --- a/drivers/hwmon/raspberrypi-hwmon.c +++ b/drivers/hwmon/raspberrypi-hwmon.c @@ -81,12 +81,6 @@ static int rpi_read(struct device *dev, enum hwmon_sensor_types type, return 0; } -static umode_t rpi_is_visible(const void *_data, enum hwmon_sensor_types type, - u32 attr, int channel) -{ - return 0444; -} - static const struct hwmon_channel_info * const rpi_info[] = { HWMON_CHANNEL_INFO(in, HWMON_I_LCRIT_ALARM), @@ -94,7 +88,7 @@ static const struct hwmon_channel_info * const rpi_info[] = { }; static const struct hwmon_ops rpi_hwmon_ops = { - .is_visible = rpi_is_visible, + .visible = 0444, .read = rpi_read, }; @@ -134,10 +128,32 @@ static int rpi_hwmon_probe(struct platform_device *pdev) return 0; } +static int rpi_hwmon_suspend(struct device *dev) +{ + struct rpi_hwmon_data *data = dev_get_drvdata(dev); + + cancel_delayed_work_sync(&data->get_values_poll_work); + + return 0; +} + +static int rpi_hwmon_resume(struct device *dev) +{ + struct rpi_hwmon_data *data = dev_get_drvdata(dev); + + get_values_poll(&data->get_values_poll_work.work); + + return 0; +} + +static DEFINE_SIMPLE_DEV_PM_OPS(rpi_hwmon_pm_ops, rpi_hwmon_suspend, + rpi_hwmon_resume); + static struct platform_driver rpi_hwmon_driver = { .probe = rpi_hwmon_probe, .driver = { .name = "raspberrypi-hwmon", + .pm = pm_ptr(&rpi_hwmon_pm_ops), }, }; module_platform_driver(rpi_hwmon_driver); diff --git a/drivers/hwmon/sbrmi.c b/drivers/hwmon/sbrmi.c index 4318f5121145..d48d8e5460ff 100644 --- a/drivers/hwmon/sbrmi.c +++ b/drivers/hwmon/sbrmi.c @@ -328,7 +328,7 @@ static int sbrmi_probe(struct i2c_client *client) } static const struct i2c_device_id sbrmi_id[] = { - {"sbrmi", 0}, + {"sbrmi"}, {} }; MODULE_DEVICE_TABLE(i2c, sbrmi_id); diff --git a/drivers/hwmon/sbtsi_temp.c b/drivers/hwmon/sbtsi_temp.c index a4181acb1aa6..3c839f56c460 100644 --- a/drivers/hwmon/sbtsi_temp.c +++ b/drivers/hwmon/sbtsi_temp.c @@ -218,7 +218,7 @@ static int sbtsi_probe(struct i2c_client *client) } static const struct i2c_device_id sbtsi_id[] = { - {"sbtsi", 0}, + {"sbtsi"}, {} }; MODULE_DEVICE_TABLE(i2c, sbtsi_id); diff --git a/drivers/hwmon/sch5636.c b/drivers/hwmon/sch5636.c index 6e6d54158474..d00bd5cc6b15 100644 --- a/drivers/hwmon/sch5636.c +++ b/drivers/hwmon/sch5636.c @@ -416,8 +416,7 @@ static int sch5636_probe(struct platform_device *pdev) id[i] = '\0'; if (strcmp(id, "THS")) { - pr_err("Unknown Fujitsu id: %02x%02x%02x\n", - id[0], id[1], id[2]); + pr_err("Unknown Fujitsu id: %3pE (%3ph)\n", id, id); err = -ENODEV; goto error; } @@ -513,7 +512,7 @@ static struct platform_driver sch5636_driver = { .name = DRVNAME, }, .probe = sch5636_probe, - .remove_new = sch5636_remove, + .remove = sch5636_remove, .id_table = sch5636_device_id, }; diff --git a/drivers/hwmon/sch56xx-common.h b/drivers/hwmon/sch56xx-common.h index 7479a549a026..601987c6b4cd 100644 --- a/drivers/hwmon/sch56xx-common.h +++ b/drivers/hwmon/sch56xx-common.h @@ -22,4 +22,3 @@ int sch56xx_read_virtual_reg12(u16 addr, u16 msb_reg, u16 lsn_reg, void sch56xx_watchdog_register(struct device *parent, u16 addr, u32 revision, struct mutex *io_lock, int check_enabled); -void sch56xx_watchdog_unregister(struct sch56xx_watchdog_data *data); diff --git a/drivers/hwmon/sg2042-mcu.c b/drivers/hwmon/sg2042-mcu.c new file mode 100644 index 000000000000..105131c4acf7 --- /dev/null +++ b/drivers/hwmon/sg2042-mcu.c @@ -0,0 +1,360 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2024 Inochi Amaoto <inochiama@outlook.com> + * + * Sophgo power control mcu for SG2042 + */ + +#include <linux/cleanup.h> +#include <linux/debugfs.h> +#include <linux/err.h> +#include <linux/hwmon.h> +#include <linux/i2c.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/mutex.h> + +/* fixed MCU registers */ +#define REG_BOARD_TYPE 0x00 +#define REG_MCU_FIRMWARE_VERSION 0x01 +#define REG_PCB_VERSION 0x02 +#define REG_PWR_CTRL 0x03 +#define REG_SOC_TEMP 0x04 +#define REG_BOARD_TEMP 0x05 +#define REG_RST_COUNT 0x0a +#define REG_UPTIME 0x0b +#define REG_RESET_REASON 0x0d +#define REG_MCU_TYPE 0x18 +#define REG_REPOWER_POLICY 0x65 +#define REG_CRITICAL_TEMP 0x66 +#define REG_REPOWER_TEMP 0x67 + +#define REPOWER_POLICY_REBOOT 1 +#define REPOWER_POLICY_KEEP_OFF 2 + +#define MCU_POWER_MAX 0xff + +#define DEFINE_MCU_DEBUG_ATTR(_name, _reg, _format) \ + static int _name##_show(struct seq_file *seqf, \ + void *unused) \ + { \ + struct sg2042_mcu_data *mcu = seqf->private; \ + int ret; \ + ret = i2c_smbus_read_byte_data(mcu->client, (_reg)); \ + if (ret < 0) \ + return ret; \ + seq_printf(seqf, _format "\n", ret); \ + return 0; \ + } \ + DEFINE_SHOW_ATTRIBUTE(_name) \ + +struct sg2042_mcu_data { + struct i2c_client *client; + struct mutex mutex; +}; + +static ssize_t reset_count_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct sg2042_mcu_data *mcu = dev_get_drvdata(dev); + int ret; + + ret = i2c_smbus_read_byte_data(mcu->client, REG_RST_COUNT); + if (ret < 0) + return ret; + + return sprintf(buf, "%d\n", ret); +} + +static ssize_t uptime_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct sg2042_mcu_data *mcu = dev_get_drvdata(dev); + u8 time_val[2]; + int ret; + + ret = i2c_smbus_read_i2c_block_data(mcu->client, REG_UPTIME, + sizeof(time_val), time_val); + if (ret < 0) + return ret; + + return sprintf(buf, "%d\n", + (time_val[0]) | (time_val[1] << 8)); +} + +static ssize_t reset_reason_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct sg2042_mcu_data *mcu = dev_get_drvdata(dev); + int ret; + + ret = i2c_smbus_read_byte_data(mcu->client, REG_RESET_REASON); + if (ret < 0) + return ret; + + return sprintf(buf, "0x%02x\n", ret); +} + +static ssize_t repower_policy_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct sg2042_mcu_data *mcu = dev_get_drvdata(dev); + int ret; + const char *action; + + ret = i2c_smbus_read_byte_data(mcu->client, REG_REPOWER_POLICY); + if (ret < 0) + return ret; + + if (ret == REPOWER_POLICY_REBOOT) + action = "repower"; + else if (ret == REPOWER_POLICY_KEEP_OFF) + action = "keep"; + else + action = "unknown"; + + return sprintf(buf, "%s\n", action); +} + +static ssize_t repower_policy_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct sg2042_mcu_data *mcu = dev_get_drvdata(dev); + u8 value; + int ret; + + if (sysfs_streq("repower", buf)) + value = REPOWER_POLICY_REBOOT; + else if (sysfs_streq("keep", buf)) + value = REPOWER_POLICY_KEEP_OFF; + else + return -EINVAL; + + ret = i2c_smbus_write_byte_data(mcu->client, + REG_REPOWER_POLICY, value); + if (ret < 0) + return ret; + + return count; +} + +static DEVICE_ATTR_RO(reset_count); +static DEVICE_ATTR_RO(uptime); +static DEVICE_ATTR_RO(reset_reason); +static DEVICE_ATTR_RW(repower_policy); + +DEFINE_MCU_DEBUG_ATTR(firmware_version, REG_MCU_FIRMWARE_VERSION, "0x%02x"); +DEFINE_MCU_DEBUG_ATTR(pcb_version, REG_PCB_VERSION, "0x%02x"); +DEFINE_MCU_DEBUG_ATTR(board_type, REG_BOARD_TYPE, "0x%02x"); +DEFINE_MCU_DEBUG_ATTR(mcu_type, REG_MCU_TYPE, "%d"); + +static struct attribute *sg2042_mcu_attrs[] = { + &dev_attr_reset_count.attr, + &dev_attr_uptime.attr, + &dev_attr_reset_reason.attr, + &dev_attr_repower_policy.attr, + NULL +}; + +static const struct attribute_group sg2042_mcu_attr_group = { + .attrs = sg2042_mcu_attrs, +}; + +static const struct attribute_group *sg2042_mcu_groups[] = { + &sg2042_mcu_attr_group, + NULL +}; + +static const struct hwmon_channel_info * const sg2042_mcu_info[] = { + HWMON_CHANNEL_INFO(chip, HWMON_C_REGISTER_TZ), + HWMON_CHANNEL_INFO(temp, HWMON_T_INPUT | HWMON_T_CRIT | + HWMON_T_CRIT_HYST, + HWMON_T_INPUT), + NULL +}; + +static int sg2042_mcu_read(struct device *dev, + enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + struct sg2042_mcu_data *mcu = dev_get_drvdata(dev); + int tmp; + u8 reg; + + switch (attr) { + case hwmon_temp_input: + reg = channel ? REG_BOARD_TEMP : REG_SOC_TEMP; + break; + case hwmon_temp_crit: + reg = REG_CRITICAL_TEMP; + break; + case hwmon_temp_crit_hyst: + reg = REG_REPOWER_TEMP; + break; + default: + return -EOPNOTSUPP; + } + + tmp = i2c_smbus_read_byte_data(mcu->client, reg); + if (tmp < 0) + return tmp; + *val = tmp * 1000; + + return 0; +} + +static int sg2042_mcu_write(struct device *dev, + enum hwmon_sensor_types type, + u32 attr, int channel, long val) +{ + struct sg2042_mcu_data *mcu = dev_get_drvdata(dev); + int temp = val / 1000; + int hyst_temp, crit_temp; + u8 reg; + + temp = clamp_val(temp, 0, MCU_POWER_MAX); + + guard(mutex)(&mcu->mutex); + + switch (attr) { + case hwmon_temp_crit: + hyst_temp = i2c_smbus_read_byte_data(mcu->client, + REG_REPOWER_TEMP); + if (hyst_temp < 0) + return hyst_temp; + + crit_temp = temp; + reg = REG_CRITICAL_TEMP; + break; + case hwmon_temp_crit_hyst: + crit_temp = i2c_smbus_read_byte_data(mcu->client, + REG_CRITICAL_TEMP); + if (crit_temp < 0) + return crit_temp; + + hyst_temp = temp; + reg = REG_REPOWER_TEMP; + break; + default: + return -EOPNOTSUPP; + } + + /* + * ensure hyst_temp is smaller to avoid MCU from + * keeping triggering repower event. + */ + if (crit_temp < hyst_temp) + return -EINVAL; + + return i2c_smbus_write_byte_data(mcu->client, reg, temp); +} + +static umode_t sg2042_mcu_is_visible(const void *_data, + enum hwmon_sensor_types type, + u32 attr, int channel) +{ + switch (type) { + case hwmon_temp: + switch (attr) { + case hwmon_temp_input: + return 0444; + case hwmon_temp_crit: + case hwmon_temp_crit_hyst: + if (channel == 0) + return 0644; + break; + default: + break; + } + break; + default: + break; + } + return 0; +} + +static const struct hwmon_ops sg2042_mcu_ops = { + .is_visible = sg2042_mcu_is_visible, + .read = sg2042_mcu_read, + .write = sg2042_mcu_write, +}; + +static const struct hwmon_chip_info sg2042_mcu_chip_info = { + .ops = &sg2042_mcu_ops, + .info = sg2042_mcu_info, +}; + +static void sg2042_mcu_debugfs_init(struct sg2042_mcu_data *mcu) +{ + debugfs_create_file("firmware_version", 0444, mcu->client->debugfs, + mcu, &firmware_version_fops); + debugfs_create_file("pcb_version", 0444, mcu->client->debugfs, mcu, + &pcb_version_fops); + debugfs_create_file("mcu_type", 0444, mcu->client->debugfs, mcu, + &mcu_type_fops); + debugfs_create_file("board_type", 0444, mcu->client->debugfs, mcu, + &board_type_fops); +} + +static int sg2042_mcu_i2c_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + struct sg2042_mcu_data *mcu; + struct device *hwmon_dev; + + if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA | + I2C_FUNC_SMBUS_BLOCK_DATA)) + return -ENODEV; + + mcu = devm_kmalloc(dev, sizeof(*mcu), GFP_KERNEL); + if (!mcu) + return -ENOMEM; + + mutex_init(&mcu->mutex); + mcu->client = client; + + i2c_set_clientdata(client, mcu); + + hwmon_dev = devm_hwmon_device_register_with_info(dev, "sg2042_mcu", + mcu, + &sg2042_mcu_chip_info, + NULL); + if (IS_ERR(hwmon_dev)) + return PTR_ERR(hwmon_dev); + + sg2042_mcu_debugfs_init(mcu); + + return 0; +} + +static const struct i2c_device_id sg2042_mcu_id[] = { + { "sg2042-hwmon-mcu" }, + { } +}; +MODULE_DEVICE_TABLE(i2c, sg2042_mcu_id); + +static const struct of_device_id sg2042_mcu_of_id[] = { + { .compatible = "sophgo,sg2042-hwmon-mcu" }, + {}, +}; +MODULE_DEVICE_TABLE(of, sg2042_mcu_of_id); + +static struct i2c_driver sg2042_mcu_driver = { + .driver = { + .name = "sg2042-mcu", + .of_match_table = sg2042_mcu_of_id, + .dev_groups = sg2042_mcu_groups, + }, + .probe = sg2042_mcu_i2c_probe, + .id_table = sg2042_mcu_id, +}; +module_i2c_driver(sg2042_mcu_driver); + +MODULE_AUTHOR("Inochi Amaoto <inochiama@outlook.com>"); +MODULE_DESCRIPTION("MCU I2C driver for SG2042 soc platform"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c index 494f9655f44f..3d55047e9baf 100644 --- a/drivers/hwmon/sht15.c +++ b/drivers/hwmon/sht15.c @@ -1051,7 +1051,7 @@ static struct platform_driver sht15_driver = { .of_match_table = of_match_ptr(sht15_dt_match), }, .probe = sht15_probe, - .remove_new = sht15_remove, + .remove = sht15_remove, .id_table = sht15_device_ids, }; module_platform_driver(sht15_driver); diff --git a/drivers/hwmon/sht21.c b/drivers/hwmon/sht21.c index 55c179475208..97327313529b 100644 --- a/drivers/hwmon/sht21.c +++ b/drivers/hwmon/sht21.c @@ -199,10 +199,7 @@ static ssize_t eic_read(struct sht21 *sht21) eic[6] = rx[0]; eic[7] = rx[1]; - ret = snprintf(sht21->eic, sizeof(sht21->eic), - "%02x%02x%02x%02x%02x%02x%02x%02x\n", - eic[0], eic[1], eic[2], eic[3], - eic[4], eic[5], eic[6], eic[7]); + ret = snprintf(sht21->eic, sizeof(sht21->eic), "%8phN\n", eic); out: if (ret < 0) sht21->eic[0] = 0; @@ -278,7 +275,7 @@ static int sht21_probe(struct i2c_client *client) /* Device ID table */ static const struct i2c_device_id sht21_id[] = { - { "sht21", 0 }, + { "sht21" }, { } }; MODULE_DEVICE_TABLE(i2c, sht21_id); diff --git a/drivers/hwmon/sht3x.c b/drivers/hwmon/sht3x.c index c0d02fbcdb76..557ad3e7752a 100644 --- a/drivers/hwmon/sht3x.c +++ b/drivers/hwmon/sht3x.c @@ -44,8 +44,6 @@ static const unsigned char sht3x_cmd_read_status_reg[] = { 0xf3, 0x2d }; static const unsigned char sht3x_cmd_clear_status_reg[] = { 0x30, 0x41 }; static const unsigned char sht3x_cmd_read_serial_number[] = { 0x37, 0x80 }; -static struct dentry *debugfs; - /* delays for single-shot mode i2c commands, both in us */ #define SHT3X_SINGLE_WAIT_TIME_HPM 15000 #define SHT3X_SINGLE_WAIT_TIME_MPM 6000 @@ -167,7 +165,6 @@ struct sht3x_data { enum sht3x_chips chip_id; struct mutex i2c_lock; /* lock for sending i2c commands */ struct mutex data_lock; /* lock for updating driver data */ - struct dentry *sensor_dir; u8 mode; const unsigned char *command; @@ -837,23 +834,7 @@ static int sht3x_write(struct device *dev, enum hwmon_sensor_types type, } } -static void sht3x_debugfs_init(struct sht3x_data *data) -{ - char name[32]; - - snprintf(name, sizeof(name), "i2c%u-%02x", - data->client->adapter->nr, data->client->addr); - data->sensor_dir = debugfs_create_dir(name, debugfs); - debugfs_create_u32("serial_number", 0444, - data->sensor_dir, &data->serial_number); -} - -static void sht3x_debugfs_remove(void *sensor_dir) -{ - debugfs_remove_recursive(sensor_dir); -} - -static int sht3x_serial_number_read(struct sht3x_data *data) +static void sht3x_serial_number_read(struct sht3x_data *data) { int ret; char buffer[SHT3X_RESPONSE_LENGTH]; @@ -864,11 +845,12 @@ static int sht3x_serial_number_read(struct sht3x_data *data) buffer, SHT3X_RESPONSE_LENGTH, 0); if (ret) - return ret; + return; data->serial_number = (buffer[0] << 24) | (buffer[1] << 16) | (buffer[3] << 8) | buffer[4]; - return ret; + + debugfs_create_u32("serial_number", 0444, client->debugfs, &data->serial_number); } static const struct hwmon_ops sht3x_ops = { @@ -882,15 +864,6 @@ static const struct hwmon_chip_info sht3x_chip_info = { .info = sht3x_channel_info, }; -/* device ID table */ -static const struct i2c_device_id sht3x_ids[] = { - {"sht3x", sht3x}, - {"sts3x", sts3x}, - {} -}; - -MODULE_DEVICE_TABLE(i2c, sht3x_ids); - static int sht3x_probe(struct i2c_client *client) { int ret; @@ -920,7 +893,7 @@ static int sht3x_probe(struct i2c_client *client) data->mode = 0; data->last_update = jiffies - msecs_to_jiffies(3000); data->client = client; - data->chip_id = i2c_match_id(sht3x_ids, client)->driver_data; + data->chip_id = (uintptr_t)i2c_get_match_data(client); crc8_populate_msb(sht3x_crc8_table, SHT3X_CRC8_POLYNOMIAL); sht3x_select_command(data); @@ -939,49 +912,31 @@ static int sht3x_probe(struct i2c_client *client) if (ret) return ret; - ret = sht3x_serial_number_read(data); - if (ret) { - dev_dbg(dev, "unable to read serial number\n"); - } else { - sht3x_debugfs_init(data); - ret = devm_add_action_or_reset(dev, - sht3x_debugfs_remove, - data->sensor_dir); - if (ret) - return ret; - } - - hwmon_dev = devm_hwmon_device_register_with_info(dev, - client->name, - data, - &sht3x_chip_info, - sht3x_groups); - + hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, data, + &sht3x_chip_info, sht3x_groups); if (IS_ERR(hwmon_dev)) - dev_dbg(dev, "unable to register hwmon device\n"); + return PTR_ERR(hwmon_dev); + + sht3x_serial_number_read(data); - return PTR_ERR_OR_ZERO(hwmon_dev); + return 0; } +/* device ID table */ +static const struct i2c_device_id sht3x_ids[] = { + {"sht3x", sht3x}, + {"sts3x", sts3x}, + {} +}; + +MODULE_DEVICE_TABLE(i2c, sht3x_ids); + static struct i2c_driver sht3x_i2c_driver = { .driver.name = "sht3x", .probe = sht3x_probe, .id_table = sht3x_ids, }; - -static int __init sht3x_init(void) -{ - debugfs = debugfs_create_dir("sht3x", NULL); - return i2c_add_driver(&sht3x_i2c_driver); -} -module_init(sht3x_init); - -static void __exit sht3x_cleanup(void) -{ - debugfs_remove_recursive(debugfs); - i2c_del_driver(&sht3x_i2c_driver); -} -module_exit(sht3x_cleanup); +module_i2c_driver(sht3x_i2c_driver); MODULE_AUTHOR("David Frey <david.frey@sensirion.com>"); MODULE_AUTHOR("Pascal Sachs <pascal.sachs@sensirion.com>"); diff --git a/drivers/hwmon/sht4x.c b/drivers/hwmon/sht4x.c index 4883755d4b1e..6c9b776237c2 100644 --- a/drivers/hwmon/sht4x.c +++ b/drivers/hwmon/sht4x.c @@ -11,6 +11,7 @@ #include <linux/crc8.h> #include <linux/delay.h> #include <linux/hwmon.h> +#include <linux/hwmon-sysfs.h> #include <linux/i2c.h> #include <linux/jiffies.h> #include <linux/module.h> @@ -31,6 +32,12 @@ */ #define SHT4X_CMD_MEASURE_HPM 0b11111101 #define SHT4X_CMD_RESET 0b10010100 +#define SHT4X_CMD_HEATER_20_1 0b00011110 +#define SHT4X_CMD_HEATER_20_01 0b00010101 +#define SHT4X_CMD_HEATER_110_1 0b00101111 +#define SHT4X_CMD_HEATER_110_01 0b00100100 +#define SHT4X_CMD_HEATER_200_1 0b00111001 +#define SHT4X_CMD_HEATER_200_01 0b00110010 #define SHT4X_CMD_LEN 1 #define SHT4X_CRC8_LEN 1 @@ -49,6 +56,10 @@ DECLARE_CRC8_TABLE(sht4x_crc8_table); * struct sht4x_data - All the data required to operate an SHT4X chip * @client: the i2c client associated with the SHT4X * @lock: a mutex that is used to prevent parallel access to the i2c client + * @heating_complete: the time that the last heating finished + * @data_pending: true if and only if there are measurements to retrieve after heating + * @heater_power: the power at which the heater will be started + * @heater_time: the time for which the heater will remain turned on * @valid: validity of fields below * @update_interval: the minimum poll interval * @last_updated: the previous time that the SHT4X was polled @@ -58,6 +69,10 @@ DECLARE_CRC8_TABLE(sht4x_crc8_table); struct sht4x_data { struct i2c_client *client; struct mutex lock; /* atomic read data updates */ + unsigned long heating_complete; /* in jiffies */ + bool data_pending; + u32 heater_power; /* in milli-watts */ + u32 heater_time; /* in milli-seconds */ bool valid; /* validity of fields below */ long update_interval; /* in milli-seconds */ long last_updated; /* in jiffies */ @@ -79,19 +94,30 @@ static int sht4x_read_values(struct sht4x_data *data) u8 crc; u8 cmd[SHT4X_CMD_LEN] = {SHT4X_CMD_MEASURE_HPM}; u8 raw_data[SHT4X_RESPONSE_LENGTH]; + unsigned long curr_jiffies; mutex_lock(&data->lock); - next_update = data->last_updated + - msecs_to_jiffies(data->update_interval); - if (data->valid && time_before_eq(jiffies, next_update)) - goto unlock; + curr_jiffies = jiffies; + if (time_before(curr_jiffies, data->heating_complete)) + msleep(jiffies_to_msecs(data->heating_complete - curr_jiffies)); - ret = i2c_master_send(client, cmd, SHT4X_CMD_LEN); - if (ret < 0) - goto unlock; + if (data->data_pending && + time_before(jiffies, data->heating_complete + data->update_interval)) { + data->data_pending = false; + } else { + next_update = data->last_updated + + msecs_to_jiffies(data->update_interval); - usleep_range(SHT4X_MEAS_DELAY_HPM, SHT4X_MEAS_DELAY_HPM + SHT4X_DELAY_EXTRA); + if (data->valid && time_before_eq(jiffies, next_update)) + goto unlock; + + ret = i2c_master_send(client, cmd, SHT4X_CMD_LEN); + if (ret < 0) + goto unlock; + + usleep_range(SHT4X_MEAS_DELAY_HPM, SHT4X_MEAS_DELAY_HPM + SHT4X_DELAY_EXTRA); + } ret = i2c_master_recv(client, raw_data, SHT4X_RESPONSE_LENGTH); if (ret != SHT4X_RESPONSE_LENGTH) { @@ -215,6 +241,143 @@ static int sht4x_hwmon_write(struct device *dev, enum hwmon_sensor_types type, } } +static ssize_t heater_enable_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct sht4x_data *data = dev_get_drvdata(dev); + + return sysfs_emit(buf, "%u\n", time_before(jiffies, data->heating_complete)); +} + +static ssize_t heater_enable_store(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + struct sht4x_data *data = dev_get_drvdata(dev); + bool status; + ssize_t ret; + u8 cmd; + u32 heating_time_bound; + + ret = kstrtobool(buf, &status); + if (ret) + return ret; + if (!status) + return -EINVAL; + + if (data->heater_time == 100) { + if (data->heater_power == 20) + cmd = SHT4X_CMD_HEATER_20_01; + else if (data->heater_power == 110) + cmd = SHT4X_CMD_HEATER_110_01; + else /* data->heater_power == 200 */ + cmd = SHT4X_CMD_HEATER_200_01; + + heating_time_bound = 110; + } else { /* data->heater_time == 1000 */ + if (data->heater_power == 20) + cmd = SHT4X_CMD_HEATER_20_1; + else if (data->heater_power == 110) + cmd = SHT4X_CMD_HEATER_110_1; + else /* data->heater_power == 200 */ + cmd = SHT4X_CMD_HEATER_200_1; + + heating_time_bound = 1100; + } + + mutex_lock(&data->lock); + + if (time_before(jiffies, data->heating_complete)) { + ret = -EBUSY; + goto unlock; + } + + ret = i2c_master_send(data->client, &cmd, SHT4X_CMD_LEN); + if (ret < 0) + goto unlock; + + data->heating_complete = jiffies + msecs_to_jiffies(heating_time_bound); + data->data_pending = true; +unlock: + mutex_unlock(&data->lock); + return ret; +} + +static ssize_t heater_power_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct sht4x_data *data = dev_get_drvdata(dev); + + return sysfs_emit(buf, "%u\n", data->heater_power); +} + +static ssize_t heater_power_store(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + struct sht4x_data *data = dev_get_drvdata(dev); + u32 power; + ssize_t ret; + + ret = kstrtou32(buf, 10, &power); + if (ret) + return ret; + + if (power != 20 && power != 110 && power != 200) + return -EINVAL; + + data->heater_power = power; + + return count; +} + +static ssize_t heater_time_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct sht4x_data *data = dev_get_drvdata(dev); + + return sysfs_emit(buf, "%u\n", data->heater_time); +} + +static ssize_t heater_time_store(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + struct sht4x_data *data = dev_get_drvdata(dev); + u32 time; + ssize_t ret; + + ret = kstrtou32(buf, 10, &time); + if (ret) + return ret; + + if (time != 100 && time != 1000) + return -EINVAL; + + data->heater_time = time; + + return count; +} + +static DEVICE_ATTR_RW(heater_enable); +static DEVICE_ATTR_RW(heater_power); +static DEVICE_ATTR_RW(heater_time); + +static struct attribute *sht4x_attrs[] = { + &dev_attr_heater_enable.attr, + &dev_attr_heater_power.attr, + &dev_attr_heater_time.attr, + NULL +}; + +ATTRIBUTE_GROUPS(sht4x); + static const struct hwmon_channel_info * const sht4x_info[] = { HWMON_CHANNEL_INFO(chip, HWMON_C_UPDATE_INTERVAL), HWMON_CHANNEL_INFO(temp, HWMON_T_INPUT), @@ -255,6 +418,9 @@ static int sht4x_probe(struct i2c_client *client) data->update_interval = SHT4X_MIN_POLL_INTERVAL; data->client = client; + data->heater_power = 200; + data->heater_time = 1000; + data->heating_complete = jiffies; mutex_init(&data->lock); @@ -270,13 +436,13 @@ static int sht4x_probe(struct i2c_client *client) client->name, data, &sht4x_chip_info, - NULL); + sht4x_groups); return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id sht4x_id[] = { - { "sht4x", 0 }, + { "sht4x" }, { }, }; MODULE_DEVICE_TABLE(i2c, sht4x_id); diff --git a/drivers/hwmon/shtc1.c b/drivers/hwmon/shtc1.c index 1f96e94967ee..2ac906e8e173 100644 --- a/drivers/hwmon/shtc1.c +++ b/drivers/hwmon/shtc1.c @@ -186,8 +186,6 @@ static void shtc1_select_command(struct shtc1_data *data) } } -static const struct i2c_device_id shtc1_id[]; - static int shtc1_probe(struct i2c_client *client) { int ret; @@ -195,7 +193,7 @@ static int shtc1_probe(struct i2c_client *client) char id_reg_buf[2]; struct shtc1_data *data; struct device *hwmon_dev; - enum shtcx_chips chip = i2c_match_id(shtc1_id, client)->driver_data; + enum shtcx_chips chip = (uintptr_t)i2c_get_match_data(client); struct i2c_adapter *adap = client->adapter; struct device *dev = &client->dev; struct device_node *np = dev->of_node; @@ -238,7 +236,7 @@ static int shtc1_probe(struct i2c_client *client) if (np) { data->setup.blocking_io = of_property_read_bool(np, "sensirion,blocking-io"); - data->setup.high_precision = !of_property_read_bool(np, "sensicon,low-precision"); + data->setup.high_precision = !of_property_read_bool(np, "sensirion,low-precision"); } else { if (client->dev.platform_data) data->setup = *(struct shtc1_platform_data *)dev->platform_data; diff --git a/drivers/hwmon/sis5595.c b/drivers/hwmon/sis5595.c index e73b1522f3ce..b7a7bcd6d3af 100644 --- a/drivers/hwmon/sis5595.c +++ b/drivers/hwmon/sis5595.c @@ -784,7 +784,7 @@ static struct platform_driver sis5595_driver = { .name = DRIVER_NAME, }, .probe = sis5595_probe, - .remove_new = sis5595_remove, + .remove = sis5595_remove, }; static int sis5595_pci_probe(struct pci_dev *dev, diff --git a/drivers/hwmon/sl28cpld-hwmon.c b/drivers/hwmon/sl28cpld-hwmon.c index e020f25c9300..454cc844fb9d 100644 --- a/drivers/hwmon/sl28cpld-hwmon.c +++ b/drivers/hwmon/sl28cpld-hwmon.c @@ -23,13 +23,6 @@ struct sl28cpld_hwmon { u32 offset; }; -static umode_t sl28cpld_hwmon_is_visible(const void *data, - enum hwmon_sensor_types type, - u32 attr, int channel) -{ - return 0444; -} - static int sl28cpld_hwmon_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, long *input) @@ -73,7 +66,7 @@ static const struct hwmon_channel_info * const sl28cpld_hwmon_info[] = { }; static const struct hwmon_ops sl28cpld_hwmon_ops = { - .is_visible = sl28cpld_hwmon_is_visible, + .visible = 0444, .read = sl28cpld_hwmon_read, }; diff --git a/drivers/hwmon/smsc47m1.c b/drivers/hwmon/smsc47m1.c index 0d46edbcb144..595bceb78d76 100644 --- a/drivers/hwmon/smsc47m1.c +++ b/drivers/hwmon/smsc47m1.c @@ -858,7 +858,7 @@ static struct platform_driver smsc47m1_driver __refdata = { .driver = { .name = DRVNAME, }, - .remove_new = __exit_p(smsc47m1_remove), + .remove = __exit_p(smsc47m1_remove), }; static int __init smsc47m1_device_add(unsigned short address, diff --git a/drivers/hwmon/smsc47m192.c b/drivers/hwmon/smsc47m192.c index d20800a1f02b..21103af4e139 100644 --- a/drivers/hwmon/smsc47m192.c +++ b/drivers/hwmon/smsc47m192.c @@ -618,7 +618,7 @@ static int smsc47m192_probe(struct i2c_client *client) } static const struct i2c_device_id smsc47m192_id[] = { - { "smsc47m192", 0 }, + { "smsc47m192" }, { } }; MODULE_DEVICE_TABLE(i2c, smsc47m192_id); diff --git a/drivers/hwmon/spd5118.c b/drivers/hwmon/spd5118.c new file mode 100644 index 000000000000..358152868d96 --- /dev/null +++ b/drivers/hwmon/spd5118.c @@ -0,0 +1,697 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Driver for Jedec 5118 compliant temperature sensors + * + * Derived from https://github.com/Steve-Tech/SPD5118-DKMS + * Originally from T/2 driver at https://t2sde.org/packages/linux + * Copyright (c) 2023 René Rebe, ExactCODE GmbH; Germany. + * + * Copyright (c) 2024 Guenter Roeck + * + * Inspired by ee1004.c and jc42.c. + * + * SPD5118 compliant temperature sensors are typically used on DDR5 + * memory modules. + */ + +#include <linux/bitops.h> +#include <linux/bits.h> +#include <linux/err.h> +#include <linux/i2c.h> +#include <linux/hwmon.h> +#include <linux/module.h> +#include <linux/mutex.h> +#include <linux/nvmem-provider.h> +#include <linux/pm.h> +#include <linux/regmap.h> +#include <linux/units.h> + +/* Addresses to scan */ +static const unsigned short normal_i2c[] = { + 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, I2C_CLIENT_END }; + +/* SPD5118 registers. */ +#define SPD5118_REG_TYPE 0x00 /* MR0:MR1 */ +#define SPD5118_REG_REVISION 0x02 /* MR2 */ +#define SPD5118_REG_VENDOR 0x03 /* MR3:MR4 */ +#define SPD5118_REG_CAPABILITY 0x05 /* MR5 */ +#define SPD5118_REG_I2C_LEGACY_MODE 0x0B /* MR11 */ +#define SPD5118_REG_TEMP_CLR 0x13 /* MR19 */ +#define SPD5118_REG_ERROR_CLR 0x14 /* MR20 */ +#define SPD5118_REG_TEMP_CONFIG 0x1A /* MR26 */ +#define SPD5118_REG_TEMP_MAX 0x1c /* MR28:MR29 */ +#define SPD5118_REG_TEMP_MIN 0x1e /* MR30:MR31 */ +#define SPD5118_REG_TEMP_CRIT 0x20 /* MR32:MR33 */ +#define SPD5118_REG_TEMP_LCRIT 0x22 /* MR34:MR35 */ +#define SPD5118_REG_TEMP 0x31 /* MR49:MR50 */ +#define SPD5118_REG_TEMP_STATUS 0x33 /* MR51 */ + +#define SPD5118_TEMP_STATUS_HIGH BIT(0) +#define SPD5118_TEMP_STATUS_LOW BIT(1) +#define SPD5118_TEMP_STATUS_CRIT BIT(2) +#define SPD5118_TEMP_STATUS_LCRIT BIT(3) + +#define SPD5118_CAP_TS_SUPPORT BIT(1) /* temperature sensor support */ + +#define SPD5118_TS_DISABLE BIT(0) /* temperature sensor disable */ + +#define SPD5118_LEGACY_MODE_ADDR BIT(3) +#define SPD5118_LEGACY_PAGE_MASK GENMASK(2, 0) +#define SPD5118_LEGACY_MODE_MASK (SPD5118_LEGACY_MODE_ADDR | SPD5118_LEGACY_PAGE_MASK) + +#define SPD5118_NUM_PAGES 8 +#define SPD5118_PAGE_SIZE 128 +#define SPD5118_PAGE_SHIFT 7 +#define SPD5118_PAGE_MASK GENMASK(6, 0) +#define SPD5118_EEPROM_BASE 0x80 +#define SPD5118_EEPROM_SIZE (SPD5118_PAGE_SIZE * SPD5118_NUM_PAGES) + +/* Temperature unit in millicelsius */ +#define SPD5118_TEMP_UNIT (MILLIDEGREE_PER_DEGREE / 4) +/* Representable temperature range in millicelsius */ +#define SPD5118_TEMP_RANGE_MIN -256000 +#define SPD5118_TEMP_RANGE_MAX 255750 + +struct spd5118_data { + struct regmap *regmap; + struct mutex nvmem_lock; +}; + +/* hwmon */ + +static int spd5118_temp_from_reg(u16 reg) +{ + int temp = sign_extend32(reg >> 2, 10); + + return temp * SPD5118_TEMP_UNIT; +} + +static u16 spd5118_temp_to_reg(long temp) +{ + temp = clamp_val(temp, SPD5118_TEMP_RANGE_MIN, SPD5118_TEMP_RANGE_MAX); + return (DIV_ROUND_CLOSEST(temp, SPD5118_TEMP_UNIT) & 0x7ff) << 2; +} + +static int spd5118_read_temp(struct regmap *regmap, u32 attr, long *val) +{ + int reg, err; + u8 regval[2]; + u16 temp; + + switch (attr) { + case hwmon_temp_input: + reg = SPD5118_REG_TEMP; + break; + case hwmon_temp_max: + reg = SPD5118_REG_TEMP_MAX; + break; + case hwmon_temp_min: + reg = SPD5118_REG_TEMP_MIN; + break; + case hwmon_temp_crit: + reg = SPD5118_REG_TEMP_CRIT; + break; + case hwmon_temp_lcrit: + reg = SPD5118_REG_TEMP_LCRIT; + break; + default: + return -EOPNOTSUPP; + } + + err = regmap_bulk_read(regmap, reg, regval, 2); + if (err) + return err; + + temp = (regval[1] << 8) | regval[0]; + + *val = spd5118_temp_from_reg(temp); + return 0; +} + +static int spd5118_read_alarm(struct regmap *regmap, u32 attr, long *val) +{ + unsigned int mask, regval; + int err; + + switch (attr) { + case hwmon_temp_max_alarm: + mask = SPD5118_TEMP_STATUS_HIGH; + break; + case hwmon_temp_min_alarm: + mask = SPD5118_TEMP_STATUS_LOW; + break; + case hwmon_temp_crit_alarm: + mask = SPD5118_TEMP_STATUS_CRIT; + break; + case hwmon_temp_lcrit_alarm: + mask = SPD5118_TEMP_STATUS_LCRIT; + break; + default: + return -EOPNOTSUPP; + } + + err = regmap_read(regmap, SPD5118_REG_TEMP_STATUS, ®val); + if (err < 0) + return err; + *val = !!(regval & mask); + if (*val) + return regmap_write(regmap, SPD5118_REG_TEMP_CLR, mask); + return 0; +} + +static int spd5118_read_enable(struct regmap *regmap, long *val) +{ + u32 regval; + int err; + + err = regmap_read(regmap, SPD5118_REG_TEMP_CONFIG, ®val); + if (err < 0) + return err; + *val = !(regval & SPD5118_TS_DISABLE); + return 0; +} + +static int spd5118_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + struct regmap *regmap = dev_get_drvdata(dev); + + if (type != hwmon_temp) + return -EOPNOTSUPP; + + switch (attr) { + case hwmon_temp_input: + case hwmon_temp_max: + case hwmon_temp_min: + case hwmon_temp_crit: + case hwmon_temp_lcrit: + return spd5118_read_temp(regmap, attr, val); + case hwmon_temp_max_alarm: + case hwmon_temp_min_alarm: + case hwmon_temp_crit_alarm: + case hwmon_temp_lcrit_alarm: + return spd5118_read_alarm(regmap, attr, val); + case hwmon_temp_enable: + return spd5118_read_enable(regmap, val); + default: + return -EOPNOTSUPP; + } +} + +static int spd5118_write_temp(struct regmap *regmap, u32 attr, long val) +{ + u8 regval[2]; + u16 temp; + int reg; + + switch (attr) { + case hwmon_temp_max: + reg = SPD5118_REG_TEMP_MAX; + break; + case hwmon_temp_min: + reg = SPD5118_REG_TEMP_MIN; + break; + case hwmon_temp_crit: + reg = SPD5118_REG_TEMP_CRIT; + break; + case hwmon_temp_lcrit: + reg = SPD5118_REG_TEMP_LCRIT; + break; + default: + return -EOPNOTSUPP; + } + + temp = spd5118_temp_to_reg(val); + regval[0] = temp & 0xff; + regval[1] = temp >> 8; + + return regmap_bulk_write(regmap, reg, regval, 2); +} + +static int spd5118_write_enable(struct regmap *regmap, long val) +{ + if (val && val != 1) + return -EINVAL; + + return regmap_update_bits(regmap, SPD5118_REG_TEMP_CONFIG, + SPD5118_TS_DISABLE, + val ? 0 : SPD5118_TS_DISABLE); +} + +static int spd5118_temp_write(struct regmap *regmap, u32 attr, long val) +{ + switch (attr) { + case hwmon_temp_max: + case hwmon_temp_min: + case hwmon_temp_crit: + case hwmon_temp_lcrit: + return spd5118_write_temp(regmap, attr, val); + case hwmon_temp_enable: + return spd5118_write_enable(regmap, val); + default: + return -EOPNOTSUPP; + } +} + +static int spd5118_write(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long val) +{ + struct regmap *regmap = dev_get_drvdata(dev); + + switch (type) { + case hwmon_temp: + return spd5118_temp_write(regmap, attr, val); + default: + return -EOPNOTSUPP; + } +} + +static umode_t spd5118_is_visible(const void *_data, enum hwmon_sensor_types type, + u32 attr, int channel) +{ + if (type != hwmon_temp) + return 0; + + switch (attr) { + case hwmon_temp_input: + return 0444; + case hwmon_temp_min: + case hwmon_temp_max: + case hwmon_temp_lcrit: + case hwmon_temp_crit: + case hwmon_temp_enable: + return 0644; + case hwmon_temp_min_alarm: + case hwmon_temp_max_alarm: + case hwmon_temp_crit_alarm: + case hwmon_temp_lcrit_alarm: + return 0444; + default: + return 0; + } +} + +/* + * Bank and vendor id are 8-bit fields with seven data bits and odd parity. + * Vendor IDs 0 and 0x7f are invalid. + * See Jedec standard JEP106BJ for details and a list of assigned vendor IDs. + */ +static bool spd5118_vendor_valid(u8 bank, u8 id) +{ + if (parity8(bank) == 0 || parity8(id) == 0) + return false; + + id &= 0x7f; + return id && id != 0x7f; +} + +/* Return 0 if detection is successful, -ENODEV otherwise */ +static int spd5118_detect(struct i2c_client *client, struct i2c_board_info *info) +{ + struct i2c_adapter *adapter = client->adapter; + int regval; + + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | + I2C_FUNC_SMBUS_WORD_DATA)) + return -ENODEV; + + regval = i2c_smbus_read_word_swapped(client, SPD5118_REG_TYPE); + if (regval != 0x5118) + return -ENODEV; + + regval = i2c_smbus_read_word_data(client, SPD5118_REG_VENDOR); + if (regval < 0 || !spd5118_vendor_valid(regval & 0xff, regval >> 8)) + return -ENODEV; + + regval = i2c_smbus_read_byte_data(client, SPD5118_REG_CAPABILITY); + if (regval < 0) + return -ENODEV; + if (!(regval & SPD5118_CAP_TS_SUPPORT) || (regval & 0xfc)) + return -ENODEV; + + regval = i2c_smbus_read_byte_data(client, SPD5118_REG_TEMP_CLR); + if (regval) + return -ENODEV; + regval = i2c_smbus_read_byte_data(client, SPD5118_REG_ERROR_CLR); + if (regval) + return -ENODEV; + + regval = i2c_smbus_read_byte_data(client, SPD5118_REG_REVISION); + if (regval < 0 || (regval & 0xc1)) + return -ENODEV; + + regval = i2c_smbus_read_byte_data(client, SPD5118_REG_TEMP_CONFIG); + if (regval < 0) + return -ENODEV; + if (regval & ~SPD5118_TS_DISABLE) + return -ENODEV; + + strscpy(info->type, "spd5118", I2C_NAME_SIZE); + return 0; +} + +static const struct hwmon_channel_info *spd5118_info[] = { + HWMON_CHANNEL_INFO(chip, + HWMON_C_REGISTER_TZ), + HWMON_CHANNEL_INFO(temp, + HWMON_T_INPUT | + HWMON_T_LCRIT | HWMON_T_LCRIT_ALARM | + HWMON_T_MIN | HWMON_T_MIN_ALARM | + HWMON_T_MAX | HWMON_T_MAX_ALARM | + HWMON_T_CRIT | HWMON_T_CRIT_ALARM | + HWMON_T_ENABLE), + NULL +}; + +static const struct hwmon_ops spd5118_hwmon_ops = { + .is_visible = spd5118_is_visible, + .read = spd5118_read, + .write = spd5118_write, +}; + +static const struct hwmon_chip_info spd5118_chip_info = { + .ops = &spd5118_hwmon_ops, + .info = spd5118_info, +}; + +/* nvmem */ + +static ssize_t spd5118_nvmem_read_page(struct regmap *regmap, char *buf, + unsigned int offset, size_t count) +{ + int addr = (offset >> SPD5118_PAGE_SHIFT) * 0x100 + SPD5118_EEPROM_BASE; + int err; + + offset &= SPD5118_PAGE_MASK; + + /* Can't cross page boundaries */ + if (offset + count > SPD5118_PAGE_SIZE) + count = SPD5118_PAGE_SIZE - offset; + + err = regmap_bulk_read(regmap, addr + offset, buf, count); + if (err) + return err; + + return count; +} + +static int spd5118_nvmem_read(void *priv, unsigned int off, void *val, size_t count) +{ + struct spd5118_data *data = priv; + char *buf = val; + int ret; + + if (unlikely(!count)) + return count; + + if (off + count > SPD5118_EEPROM_SIZE) + return -EINVAL; + + mutex_lock(&data->nvmem_lock); + + while (count) { + ret = spd5118_nvmem_read_page(data->regmap, buf, off, count); + if (ret < 0) { + mutex_unlock(&data->nvmem_lock); + return ret; + } + buf += ret; + off += ret; + count -= ret; + } + mutex_unlock(&data->nvmem_lock); + return 0; +} + +static int spd5118_nvmem_init(struct device *dev, struct spd5118_data *data) +{ + struct nvmem_config nvmem_config = { + .type = NVMEM_TYPE_EEPROM, + .name = dev_name(dev), + .id = NVMEM_DEVID_NONE, + .dev = dev, + .base_dev = dev, + .read_only = true, + .root_only = false, + .owner = THIS_MODULE, + .compat = true, + .reg_read = spd5118_nvmem_read, + .priv = data, + .stride = 1, + .word_size = 1, + .size = SPD5118_EEPROM_SIZE, + }; + struct nvmem_device *nvmem; + + nvmem = devm_nvmem_register(dev, &nvmem_config); + return PTR_ERR_OR_ZERO(nvmem); +} + +/* regmap */ + +static bool spd5118_writeable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case SPD5118_REG_I2C_LEGACY_MODE: + case SPD5118_REG_TEMP_CLR: + case SPD5118_REG_TEMP_CONFIG: + case SPD5118_REG_TEMP_MAX: + case SPD5118_REG_TEMP_MAX + 1: + case SPD5118_REG_TEMP_MIN: + case SPD5118_REG_TEMP_MIN + 1: + case SPD5118_REG_TEMP_CRIT: + case SPD5118_REG_TEMP_CRIT + 1: + case SPD5118_REG_TEMP_LCRIT: + case SPD5118_REG_TEMP_LCRIT + 1: + return true; + default: + return false; + } +} + +static bool spd5118_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case SPD5118_REG_TEMP_CLR: + case SPD5118_REG_ERROR_CLR: + case SPD5118_REG_TEMP: + case SPD5118_REG_TEMP + 1: + case SPD5118_REG_TEMP_STATUS: + return true; + default: + return false; + } +} + +static const struct regmap_range_cfg spd5118_regmap_range_cfg[] = { + { + .selector_reg = SPD5118_REG_I2C_LEGACY_MODE, + .selector_mask = SPD5118_LEGACY_PAGE_MASK, + .selector_shift = 0, + .window_start = 0, + .window_len = 0x100, + .range_min = 0, + .range_max = 0x7ff, + }, +}; + +static const struct regmap_config spd5118_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = 0x7ff, + .writeable_reg = spd5118_writeable_reg, + .volatile_reg = spd5118_volatile_reg, + .cache_type = REGCACHE_MAPLE, + + .ranges = spd5118_regmap_range_cfg, + .num_ranges = ARRAY_SIZE(spd5118_regmap_range_cfg), +}; + +static int spd5118_init(struct i2c_client *client) +{ + struct i2c_adapter *adapter = client->adapter; + int err, regval, mode; + + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | + I2C_FUNC_SMBUS_WORD_DATA)) + return -ENODEV; + + regval = i2c_smbus_read_word_swapped(client, SPD5118_REG_TYPE); + if (regval < 0 || (regval && regval != 0x5118)) + return -ENODEV; + + /* + * If the device type registers return 0, it is possible that the chip + * has a non-zero page selected and takes the specification literally, + * i.e. disables access to volatile registers besides the page register + * if the page is not 0. Try to identify such chips. + */ + if (!regval) { + /* Vendor ID registers must also be 0 */ + regval = i2c_smbus_read_word_data(client, SPD5118_REG_VENDOR); + if (regval) + return -ENODEV; + + /* The selected page in MR11 must not be 0 */ + mode = i2c_smbus_read_byte_data(client, SPD5118_REG_I2C_LEGACY_MODE); + if (mode < 0 || (mode & ~SPD5118_LEGACY_MODE_MASK) || + !(mode & SPD5118_LEGACY_PAGE_MASK)) + return -ENODEV; + + err = i2c_smbus_write_byte_data(client, SPD5118_REG_I2C_LEGACY_MODE, + mode & SPD5118_LEGACY_MODE_ADDR); + if (err) + return -ENODEV; + + /* + * If the device type registers are still bad after selecting + * page 0, this is not a SPD5118 device. Restore original + * legacy mode register value and abort. + */ + regval = i2c_smbus_read_word_swapped(client, SPD5118_REG_TYPE); + if (regval != 0x5118) { + i2c_smbus_write_byte_data(client, SPD5118_REG_I2C_LEGACY_MODE, mode); + return -ENODEV; + } + } + + /* We are reasonably sure that this is really a SPD5118 hub controller */ + return 0; +} + +static int spd5118_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + unsigned int regval, revision, vendor, bank; + struct spd5118_data *data; + struct device *hwmon_dev; + struct regmap *regmap; + int err; + + err = spd5118_init(client); + if (err) + return err; + + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + regmap = devm_regmap_init_i2c(client, &spd5118_regmap_config); + if (IS_ERR(regmap)) + return dev_err_probe(dev, PTR_ERR(regmap), "regmap init failed\n"); + + err = regmap_read(regmap, SPD5118_REG_CAPABILITY, ®val); + if (err) + return err; + if (!(regval & SPD5118_CAP_TS_SUPPORT)) + return -ENODEV; + + err = regmap_read(regmap, SPD5118_REG_REVISION, &revision); + if (err) + return err; + + err = regmap_read(regmap, SPD5118_REG_VENDOR, &bank); + if (err) + return err; + err = regmap_read(regmap, SPD5118_REG_VENDOR + 1, &vendor); + if (err) + return err; + if (!spd5118_vendor_valid(bank, vendor)) + return -ENODEV; + + data->regmap = regmap; + mutex_init(&data->nvmem_lock); + dev_set_drvdata(dev, data); + + err = spd5118_nvmem_init(dev, data); + /* Ignore if NVMEM support is disabled */ + if (err && err != -EOPNOTSUPP) { + dev_err_probe(dev, err, "failed to register nvmem\n"); + return err; + } + + hwmon_dev = devm_hwmon_device_register_with_info(dev, "spd5118", + regmap, &spd5118_chip_info, + NULL); + if (IS_ERR(hwmon_dev)) + return PTR_ERR(hwmon_dev); + + /* + * From JESD300-5B + * MR2 bits [5:4]: Major revision, 1..4 + * MR2 bits [3:1]: Minor revision, 0..8? Probably a typo, assume 1..8 + */ + dev_info(dev, "DDR5 temperature sensor: vendor 0x%02x:0x%02x revision %d.%d\n", + bank & 0x7f, vendor, ((revision >> 4) & 0x03) + 1, ((revision >> 1) & 0x07) + 1); + + return 0; +} + +static int spd5118_suspend(struct device *dev) +{ + struct spd5118_data *data = dev_get_drvdata(dev); + struct regmap *regmap = data->regmap; + u32 regval; + int err; + + /* + * Make sure the configuration register in the regmap cache is current + * before bypassing it. + */ + err = regmap_read(regmap, SPD5118_REG_TEMP_CONFIG, ®val); + if (err < 0) + return err; + + regcache_cache_bypass(regmap, true); + regmap_update_bits(regmap, SPD5118_REG_TEMP_CONFIG, SPD5118_TS_DISABLE, + SPD5118_TS_DISABLE); + regcache_cache_bypass(regmap, false); + + regcache_cache_only(regmap, true); + regcache_mark_dirty(regmap); + + return 0; +} + +static int spd5118_resume(struct device *dev) +{ + struct spd5118_data *data = dev_get_drvdata(dev); + struct regmap *regmap = data->regmap; + + regcache_cache_only(regmap, false); + return regcache_sync(regmap); +} + +static DEFINE_SIMPLE_DEV_PM_OPS(spd5118_pm_ops, spd5118_suspend, spd5118_resume); + +static const struct i2c_device_id spd5118_id[] = { + { "spd5118" }, + { } +}; +MODULE_DEVICE_TABLE(i2c, spd5118_id); + +static const struct of_device_id spd5118_of_ids[] = { + { .compatible = "jedec,spd5118", }, + { } +}; +MODULE_DEVICE_TABLE(of, spd5118_of_ids); + +static struct i2c_driver spd5118_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "spd5118", + .of_match_table = spd5118_of_ids, + .pm = pm_sleep_ptr(&spd5118_pm_ops), + }, + .probe = spd5118_probe, + .id_table = spd5118_id, + .detect = IS_ENABLED(CONFIG_SENSORS_SPD5118_DETECT) ? spd5118_detect : NULL, + .address_list = IS_ENABLED(CONFIG_SENSORS_SPD5118_DETECT) ? normal_i2c : NULL, +}; + +module_i2c_driver(spd5118_driver); + +MODULE_AUTHOR("René Rebe <rene@exactcode.de>"); +MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>"); +MODULE_DESCRIPTION("SPD 5118 driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/stts751.c b/drivers/hwmon/stts751.c index 847c99376930..f9e8b2869164 100644 --- a/drivers/hwmon/stts751.c +++ b/drivers/hwmon/stts751.c @@ -72,12 +72,12 @@ static const int stts751_intervals[] = { }; static const struct i2c_device_id stts751_id[] = { - { "stts751", 0 }, + { "stts751" }, { } }; static const struct of_device_id __maybe_unused stts751_of_match[] = { - { .compatible = "stts751" }, + { .compatible = "st,stts751" }, { }, }; MODULE_DEVICE_TABLE(of, stts751_of_match); @@ -91,7 +91,6 @@ struct stts751_priv { int event_max, event_min; int therm; int hyst; - bool smbus_timeout; int temp; unsigned long last_update, last_alert_update; u8 config; diff --git a/drivers/hwmon/surface_fan.c b/drivers/hwmon/surface_fan.c index de3c5a2409c6..aafb4ac92e6c 100644 --- a/drivers/hwmon/surface_fan.c +++ b/drivers/hwmon/surface_fan.c @@ -18,14 +18,6 @@ SSAM_DEFINE_SYNC_REQUEST_CL_R(__ssam_fan_rpm_get, __le16, { .command_id = 0x01, }); -// hwmon -static umode_t surface_fan_hwmon_is_visible(const void *drvdata, - enum hwmon_sensor_types type, u32 attr, - int channel) -{ - return 0444; -} - static int surface_fan_hwmon_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel, long *val) @@ -49,7 +41,7 @@ static const struct hwmon_channel_info *const surface_fan_info[] = { }; static const struct hwmon_ops surface_fan_hwmon_ops = { - .is_visible = surface_fan_hwmon_is_visible, + .visible = 0444, .read = surface_fan_hwmon_read, }; diff --git a/drivers/hwmon/surface_temp.c b/drivers/hwmon/surface_temp.c new file mode 100644 index 000000000000..cd21f331f157 --- /dev/null +++ b/drivers/hwmon/surface_temp.c @@ -0,0 +1,235 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Thermal sensor subsystem driver for Surface System Aggregator Module (SSAM). + * + * Copyright (C) 2022-2023 Maximilian Luz <luzmaximilian@gmail.com> + */ + +#include <linux/bitops.h> +#include <linux/hwmon.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/types.h> + +#include <linux/surface_aggregator/controller.h> +#include <linux/surface_aggregator/device.h> + +/* -- SAM interface. -------------------------------------------------------- */ + +/* + * Available sensors are indicated by a 16-bit bitfield, where a 1 marks the + * presence of a sensor. So we have at most 16 possible sensors/channels. + */ +#define SSAM_TMP_SENSOR_MAX_COUNT 16 + +/* + * All names observed so far are 6 characters long, but there's only + * zeros after the name, so perhaps they can be longer. This number reflects + * the maximum zero-padded space observed in the returned buffer. + */ +#define SSAM_TMP_SENSOR_NAME_LENGTH 18 + +struct ssam_tmp_get_name_rsp { + __le16 unknown1; + char unknown2; + char name[SSAM_TMP_SENSOR_NAME_LENGTH]; +} __packed; + +static_assert(sizeof(struct ssam_tmp_get_name_rsp) == 21); + +SSAM_DEFINE_SYNC_REQUEST_CL_R(__ssam_tmp_get_available_sensors, __le16, { + .target_category = SSAM_SSH_TC_TMP, + .command_id = 0x04, +}); + +SSAM_DEFINE_SYNC_REQUEST_MD_R(__ssam_tmp_get_temperature, __le16, { + .target_category = SSAM_SSH_TC_TMP, + .command_id = 0x01, +}); + +SSAM_DEFINE_SYNC_REQUEST_MD_R(__ssam_tmp_get_name, struct ssam_tmp_get_name_rsp, { + .target_category = SSAM_SSH_TC_TMP, + .command_id = 0x0e, +}); + +static int ssam_tmp_get_available_sensors(struct ssam_device *sdev, s16 *sensors) +{ + __le16 sensors_le; + int status; + + status = __ssam_tmp_get_available_sensors(sdev, &sensors_le); + if (status) + return status; + + *sensors = le16_to_cpu(sensors_le); + return 0; +} + +static int ssam_tmp_get_temperature(struct ssam_device *sdev, u8 iid, long *temperature) +{ + __le16 temp_le; + int status; + + status = __ssam_tmp_get_temperature(sdev->ctrl, sdev->uid.target, iid, &temp_le); + if (status) + return status; + + /* Convert 1/10 °K to 1/1000 °C */ + *temperature = (le16_to_cpu(temp_le) - 2731) * 100L; + return 0; +} + +static int ssam_tmp_get_name(struct ssam_device *sdev, u8 iid, char *buf, size_t buf_len) +{ + struct ssam_tmp_get_name_rsp name_rsp; + int status; + + status = __ssam_tmp_get_name(sdev->ctrl, sdev->uid.target, iid, &name_rsp); + if (status) + return status; + + /* + * This should not fail unless the name in the returned struct is not + * null-terminated or someone changed something in the struct + * definitions above, since our buffer and struct have the same + * capacity by design. So if this fails, log an error message. Since + * the more likely cause is that the returned string isn't + * null-terminated, we might have received garbage (as opposed to just + * an incomplete string), so also fail the function. + */ + status = strscpy(buf, name_rsp.name, buf_len); + if (status < 0) { + dev_err(&sdev->dev, "received non-null-terminated sensor name string\n"); + return status; + } + + return 0; +} + +/* -- Driver.---------------------------------------------------------------- */ + +struct ssam_temp { + struct ssam_device *sdev; + s16 sensors; + char names[SSAM_TMP_SENSOR_MAX_COUNT][SSAM_TMP_SENSOR_NAME_LENGTH]; +}; + +static umode_t ssam_temp_hwmon_is_visible(const void *data, + enum hwmon_sensor_types type, + u32 attr, int channel) +{ + const struct ssam_temp *ssam_temp = data; + + if (!(ssam_temp->sensors & BIT(channel))) + return 0; + + return 0444; +} + +static int ssam_temp_hwmon_read(struct device *dev, + enum hwmon_sensor_types type, + u32 attr, int channel, long *value) +{ + const struct ssam_temp *ssam_temp = dev_get_drvdata(dev); + + return ssam_tmp_get_temperature(ssam_temp->sdev, channel + 1, value); +} + +static int ssam_temp_hwmon_read_string(struct device *dev, + enum hwmon_sensor_types type, + u32 attr, int channel, const char **str) +{ + const struct ssam_temp *ssam_temp = dev_get_drvdata(dev); + + *str = ssam_temp->names[channel]; + return 0; +} + +static const struct hwmon_channel_info * const ssam_temp_hwmon_info[] = { + HWMON_CHANNEL_INFO(chip, + HWMON_C_REGISTER_TZ), + HWMON_CHANNEL_INFO(temp, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL, + HWMON_T_INPUT | HWMON_T_LABEL), + NULL +}; + +static const struct hwmon_ops ssam_temp_hwmon_ops = { + .is_visible = ssam_temp_hwmon_is_visible, + .read = ssam_temp_hwmon_read, + .read_string = ssam_temp_hwmon_read_string, +}; + +static const struct hwmon_chip_info ssam_temp_hwmon_chip_info = { + .ops = &ssam_temp_hwmon_ops, + .info = ssam_temp_hwmon_info, +}; + +static int ssam_temp_probe(struct ssam_device *sdev) +{ + struct ssam_temp *ssam_temp; + struct device *hwmon_dev; + s16 sensors; + int channel; + int status; + + status = ssam_tmp_get_available_sensors(sdev, &sensors); + if (status) + return status; + + ssam_temp = devm_kzalloc(&sdev->dev, sizeof(*ssam_temp), GFP_KERNEL); + if (!ssam_temp) + return -ENOMEM; + + ssam_temp->sdev = sdev; + ssam_temp->sensors = sensors; + + /* Retrieve the name for each available sensor. */ + for (channel = 0; channel < SSAM_TMP_SENSOR_MAX_COUNT; channel++) { + if (!(sensors & BIT(channel))) + continue; + + status = ssam_tmp_get_name(sdev, channel + 1, ssam_temp->names[channel], + SSAM_TMP_SENSOR_NAME_LENGTH); + if (status) + return status; + } + + hwmon_dev = devm_hwmon_device_register_with_info(&sdev->dev, "surface_thermal", ssam_temp, + &ssam_temp_hwmon_chip_info, NULL); + return PTR_ERR_OR_ZERO(hwmon_dev); +} + +static const struct ssam_device_id ssam_temp_match[] = { + { SSAM_SDEV(TMP, SAM, 0x00, 0x02) }, + { }, +}; +MODULE_DEVICE_TABLE(ssam, ssam_temp_match); + +static struct ssam_device_driver ssam_temp = { + .probe = ssam_temp_probe, + .match_table = ssam_temp_match, + .driver = { + .name = "surface_temp", + .probe_type = PROBE_PREFER_ASYNCHRONOUS, + }, +}; +module_ssam_device_driver(ssam_temp); + +MODULE_AUTHOR("Maximilian Luz <luzmaximilian@gmail.com>"); +MODULE_DESCRIPTION("Thermal sensor subsystem driver for Surface System Aggregator Module"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/tc654.c b/drivers/hwmon/tc654.c index 42a9658f1bc2..39fe5836f237 100644 --- a/drivers/hwmon/tc654.c +++ b/drivers/hwmon/tc654.c @@ -550,8 +550,8 @@ static int tc654_probe(struct i2c_client *client) } static const struct i2c_device_id tc654_id[] = { - {"tc654", 0}, - {"tc655", 0}, + {"tc654"}, + {"tc655"}, {} }; diff --git a/drivers/hwmon/tc74.c b/drivers/hwmon/tc74.c index 03950670bd78..9984373a25fb 100644 --- a/drivers/hwmon/tc74.c +++ b/drivers/hwmon/tc74.c @@ -151,7 +151,7 @@ static int tc74_probe(struct i2c_client *client) } static const struct i2c_device_id tc74_id[] = { - { "tc74", 0 }, + { "tc74" }, {} }; MODULE_DEVICE_TABLE(i2c, tc74_id); diff --git a/drivers/hwmon/thmc50.c b/drivers/hwmon/thmc50.c index 68ba26bc9014..0cbdb91698b1 100644 --- a/drivers/hwmon/thmc50.c +++ b/drivers/hwmon/thmc50.c @@ -377,8 +377,6 @@ static void thmc50_init_client(struct thmc50_data *data) i2c_smbus_write_byte_data(client, THMC50_REG_CONF, config); } -static const struct i2c_device_id thmc50_id[]; - static int thmc50_probe(struct i2c_client *client) { struct device *dev = &client->dev; @@ -391,7 +389,7 @@ static int thmc50_probe(struct i2c_client *client) return -ENOMEM; data->client = client; - data->type = i2c_match_id(thmc50_id, client)->driver_data; + data->type = (uintptr_t)i2c_get_match_data(client); mutex_init(&data->update_lock); thmc50_init_client(data); diff --git a/drivers/hwmon/tmp102.c b/drivers/hwmon/tmp102.c index 2506c78590af..8af44a33055f 100644 --- a/drivers/hwmon/tmp102.c +++ b/drivers/hwmon/tmp102.c @@ -286,7 +286,7 @@ static int tmp102_resume(struct device *dev) static DEFINE_SIMPLE_DEV_PM_OPS(tmp102_dev_pm_ops, tmp102_suspend, tmp102_resume); static const struct i2c_device_id tmp102_id[] = { - { "tmp102", 0 }, + { "tmp102" }, { } }; MODULE_DEVICE_TABLE(i2c, tmp102_id); diff --git a/drivers/hwmon/tmp103.c b/drivers/hwmon/tmp103.c index a84c29a3a765..f271a03e05ae 100644 --- a/drivers/hwmon/tmp103.c +++ b/drivers/hwmon/tmp103.c @@ -197,7 +197,7 @@ static int tmp103_resume(struct device *dev) static DEFINE_SIMPLE_DEV_PM_OPS(tmp103_dev_pm_ops, tmp103_suspend, tmp103_resume); static const struct i2c_device_id tmp103_id[] = { - { "tmp103", 0 }, + { "tmp103" }, { } }; MODULE_DEVICE_TABLE(i2c, tmp103_id); diff --git a/drivers/hwmon/tmp108.c b/drivers/hwmon/tmp108.c index d7a09ab2bc11..a971ff628435 100644 --- a/drivers/hwmon/tmp108.c +++ b/drivers/hwmon/tmp108.c @@ -8,14 +8,15 @@ #include <linux/device.h> #include <linux/err.h> #include <linux/hwmon.h> -#include <linux/hwmon-sysfs.h> +#include <linux/mod_devicetable.h> #include <linux/module.h> #include <linux/mutex.h> -#include <linux/of.h> #include <linux/i2c.h> +#include <linux/i3c/device.h> #include <linux/init.h> #include <linux/jiffies.h> #include <linux/regmap.h> +#include <linux/regulator/consumer.h> #include <linux/slab.h> #define DRIVER_NAME "tmp108" @@ -323,33 +324,23 @@ static const struct regmap_config tmp108_regmap_config = { .use_single_write = true, }; -static int tmp108_probe(struct i2c_client *client) +static int tmp108_common_probe(struct device *dev, struct regmap *regmap, char *name) { - struct device *dev = &client->dev; struct device *hwmon_dev; struct tmp108 *tmp108; - int err; u32 config; + int err; - if (!i2c_check_functionality(client->adapter, - I2C_FUNC_SMBUS_WORD_DATA)) { - dev_err(dev, - "adapter doesn't support SMBus word transactions\n"); - return -ENODEV; - } + err = devm_regulator_get_enable(dev, "vcc"); + if (err) + return dev_err_probe(dev, err, "Failed to enable regulator\n"); tmp108 = devm_kzalloc(dev, sizeof(*tmp108), GFP_KERNEL); if (!tmp108) return -ENOMEM; dev_set_drvdata(dev, tmp108); - - tmp108->regmap = devm_regmap_init_i2c(client, &tmp108_regmap_config); - if (IS_ERR(tmp108->regmap)) { - err = PTR_ERR(tmp108->regmap); - dev_err(dev, "regmap init failed: %d", err); - return err; - } + tmp108->regmap = regmap; err = regmap_read(tmp108->regmap, TMP108_REG_CONF, &config); if (err < 0) { @@ -383,13 +374,30 @@ static int tmp108_probe(struct i2c_client *client) return err; } - hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, + hwmon_dev = devm_hwmon_device_register_with_info(dev, name, tmp108, &tmp108_chip_info, NULL); return PTR_ERR_OR_ZERO(hwmon_dev); } +static int tmp108_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + struct regmap *regmap; + + if (!i2c_check_functionality(client->adapter, + I2C_FUNC_SMBUS_WORD_DATA)) + return dev_err_probe(dev, -ENODEV, + "adapter doesn't support SMBus word transactions\n"); + + regmap = devm_regmap_init_i2c(client, &tmp108_regmap_config); + if (IS_ERR(regmap)) + return dev_err_probe(dev, PTR_ERR(regmap), "regmap init failed"); + + return tmp108_common_probe(dev, regmap, client->name); +} + static int tmp108_suspend(struct device *dev) { struct tmp108 *tmp108 = dev_get_drvdata(dev); @@ -413,30 +421,57 @@ static int tmp108_resume(struct device *dev) static DEFINE_SIMPLE_DEV_PM_OPS(tmp108_dev_pm_ops, tmp108_suspend, tmp108_resume); static const struct i2c_device_id tmp108_i2c_ids[] = { - { "tmp108", 0 }, + { "p3t1085" }, + { "tmp108" }, { } }; MODULE_DEVICE_TABLE(i2c, tmp108_i2c_ids); -#ifdef CONFIG_OF static const struct of_device_id tmp108_of_ids[] = { + { .compatible = "nxp,p3t1085", }, { .compatible = "ti,tmp108", }, {} }; MODULE_DEVICE_TABLE(of, tmp108_of_ids); -#endif static struct i2c_driver tmp108_driver = { .driver = { .name = DRIVER_NAME, .pm = pm_sleep_ptr(&tmp108_dev_pm_ops), - .of_match_table = of_match_ptr(tmp108_of_ids), + .of_match_table = tmp108_of_ids, }, .probe = tmp108_probe, .id_table = tmp108_i2c_ids, }; -module_i2c_driver(tmp108_driver); +static const struct i3c_device_id p3t1085_i3c_ids[] = { + I3C_DEVICE(0x011b, 0x1529, NULL), + {} +}; +MODULE_DEVICE_TABLE(i3c, p3t1085_i3c_ids); + +static int p3t1085_i3c_probe(struct i3c_device *i3cdev) +{ + struct device *dev = i3cdev_to_dev(i3cdev); + struct regmap *regmap; + + regmap = devm_regmap_init_i3c(i3cdev, &tmp108_regmap_config); + if (IS_ERR(regmap)) + return dev_err_probe(dev, PTR_ERR(regmap), + "Failed to register i3c regmap\n"); + + return tmp108_common_probe(dev, regmap, "p3t1085_i3c"); +} + +static struct i3c_driver p3t1085_driver = { + .driver = { + .name = "p3t1085_i3c", + }, + .probe = p3t1085_i3c_probe, + .id_table = p3t1085_i3c_ids, +}; + +module_i3c_i2c_driver(p3t1085_driver, &tmp108_driver) MODULE_AUTHOR("John Muir <john@jmuir.com>"); MODULE_DESCRIPTION("Texas Instruments TMP108 temperature sensor driver"); diff --git a/drivers/hwmon/tmp401.c b/drivers/hwmon/tmp401.c index df1b45a62e80..02c5a3bb1071 100644 --- a/drivers/hwmon/tmp401.c +++ b/drivers/hwmon/tmp401.c @@ -308,7 +308,9 @@ static int tmp401_temp_read(struct device *dev, u32 attr, int channel, long *val { struct tmp401_data *data = dev_get_drvdata(dev); struct regmap *regmap = data->regmap; + unsigned int regs[2] = { TMP401_TEMP_MSB[3][channel], TMP401_TEMP_CRIT_HYST }; unsigned int regval; + u16 regvals[2]; int reg, ret; switch (attr) { @@ -325,20 +327,11 @@ static int tmp401_temp_read(struct device *dev, u32 attr, int channel, long *val *val = tmp401_register_to_temp(regval, data->extended_range); break; case hwmon_temp_crit_hyst: - mutex_lock(&data->update_lock); - reg = TMP401_TEMP_MSB[3][channel]; - ret = regmap_read(regmap, reg, ®val); - if (ret < 0) - goto unlock; - *val = tmp401_register_to_temp(regval, data->extended_range); - ret = regmap_read(regmap, TMP401_TEMP_CRIT_HYST, ®val); - if (ret < 0) - goto unlock; - *val -= regval * 1000; -unlock: - mutex_unlock(&data->update_lock); + ret = regmap_multi_reg_read(regmap, regs, regvals, 2); if (ret < 0) return ret; + *val = tmp401_register_to_temp(regvals[0], data->extended_range) - + (regvals[1] * 1000); break; case hwmon_temp_fault: case hwmon_temp_min_alarm: @@ -693,7 +686,7 @@ static int tmp401_probe(struct i2c_client *client) data->client = client; mutex_init(&data->update_lock); - data->kind = i2c_match_id(tmp401_id, client)->driver_data; + data->kind = (uintptr_t)i2c_get_match_data(client); data->regmap = devm_regmap_init(dev, NULL, data, &tmp401_regmap_config); if (IS_ERR(data->regmap)) diff --git a/drivers/hwmon/tmp421.c b/drivers/hwmon/tmp421.c index 10b66c9ce045..9537727aad9a 100644 --- a/drivers/hwmon/tmp421.c +++ b/drivers/hwmon/tmp421.c @@ -410,18 +410,15 @@ static int tmp421_probe_from_dt(struct i2c_client *client, struct tmp421_data *d { struct device *dev = &client->dev; const struct device_node *np = dev->of_node; - struct device_node *child; int err; - for_each_child_of_node(np, child) { + for_each_child_of_node_scoped(np, child) { if (strcmp(child->name, "channel")) continue; err = tmp421_probe_child_from_dt(client, child, data); - if (err) { - of_node_put(child); + if (err) return err; - } } return 0; @@ -446,11 +443,7 @@ static int tmp421_probe(struct i2c_client *client) return -ENOMEM; mutex_init(&data->update_lock); - if (client->dev.of_node) - data->channels = (unsigned long) - of_device_get_match_data(&client->dev); - else - data->channels = i2c_match_id(tmp421_id, client)->driver_data; + data->channels = (unsigned long)i2c_get_match_data(client); data->client = client; for (i = 0; i < data->channels; i++) { diff --git a/drivers/hwmon/tmp464.c b/drivers/hwmon/tmp464.c index f58ca4c6acb6..0f629c6d7695 100644 --- a/drivers/hwmon/tmp464.c +++ b/drivers/hwmon/tmp464.c @@ -147,11 +147,11 @@ static int tmp464_temp_read(struct device *dev, u32 attr, int channel, long *val { struct tmp464_data *data = dev_get_drvdata(dev); struct regmap *regmap = data->regmap; - unsigned int regval, regval2; + unsigned int regs[2]; + unsigned int regval; + u16 regvals[2]; int err = 0; - mutex_lock(&data->update_lock); - switch (attr) { case hwmon_temp_max_alarm: err = regmap_read(regmap, TMP464_THERM_STATUS_REG, ®val); @@ -172,26 +172,27 @@ static int tmp464_temp_read(struct device *dev, u32 attr, int channel, long *val * complete. That means we have to cache the value internally * for one measurement cycle and report the cached value. */ + mutex_lock(&data->update_lock); if (!data->valid || time_after(jiffies, data->last_updated + msecs_to_jiffies(data->update_interval))) { err = regmap_read(regmap, TMP464_REMOTE_OPEN_REG, ®val); if (err < 0) - break; + goto unlock; data->open_reg = regval; data->last_updated = jiffies; data->valid = true; } *val = !!(data->open_reg & BIT(channel + 7)); +unlock: + mutex_unlock(&data->update_lock); break; case hwmon_temp_max_hyst: - err = regmap_read(regmap, TMP464_THERM_LIMIT[channel], ®val); + regs[0] = TMP464_THERM_LIMIT[channel]; + regs[1] = TMP464_TEMP_HYST_REG; + err = regmap_multi_reg_read(regmap, regs, regvals, 2); if (err < 0) break; - err = regmap_read(regmap, TMP464_TEMP_HYST_REG, ®val2); - if (err < 0) - break; - regval -= regval2; - *val = temp_from_reg(regval); + *val = temp_from_reg(regvals[0] - regvals[1]); break; case hwmon_temp_max: err = regmap_read(regmap, TMP464_THERM_LIMIT[channel], ®val); @@ -200,14 +201,12 @@ static int tmp464_temp_read(struct device *dev, u32 attr, int channel, long *val *val = temp_from_reg(regval); break; case hwmon_temp_crit_hyst: - err = regmap_read(regmap, TMP464_THERM2_LIMIT[channel], ®val); + regs[0] = TMP464_THERM2_LIMIT[channel]; + regs[1] = TMP464_TEMP_HYST_REG; + err = regmap_multi_reg_read(regmap, regs, regvals, 2); if (err < 0) break; - err = regmap_read(regmap, TMP464_TEMP_HYST_REG, ®val2); - if (err < 0) - break; - regval -= regval2; - *val = temp_from_reg(regval); + *val = temp_from_reg(regvals[0] - regvals[1]); break; case hwmon_temp_crit: err = regmap_read(regmap, TMP464_THERM2_LIMIT[channel], ®val); @@ -239,8 +238,6 @@ static int tmp464_temp_read(struct device *dev, u32 attr, int channel, long *val break; } - mutex_unlock(&data->update_lock); - return err; } @@ -565,18 +562,15 @@ static int tmp464_probe_child_from_dt(struct device *dev, static int tmp464_probe_from_dt(struct device *dev, struct tmp464_data *data) { const struct device_node *np = dev->of_node; - struct device_node *child; int err; - for_each_child_of_node(np, child) { + for_each_child_of_node_scoped(np, child) { if (strcmp(child->name, "channel")) continue; err = tmp464_probe_child_from_dt(dev, child, data); - if (err) { - of_node_put(child); + if (err) return err; - } } return 0; @@ -666,10 +660,7 @@ static int tmp464_probe(struct i2c_client *client) mutex_init(&data->update_lock); - if (dev->of_node) - data->channels = (int)(unsigned long)of_device_get_match_data(&client->dev); - else - data->channels = i2c_match_id(tmp464_id, client)->driver_data; + data->channels = (int)(unsigned long)i2c_get_match_data(client); data->regmap = devm_regmap_init_i2c(client, &tmp464_regmap_config); if (IS_ERR(data->regmap)) diff --git a/drivers/hwmon/tmp513.c b/drivers/hwmon/tmp513.c index ea6f4416c124..5acbfd7d088d 100644 --- a/drivers/hwmon/tmp513.c +++ b/drivers/hwmon/tmp513.c @@ -159,7 +159,7 @@ static const u8 TMP51X_CURR_INPUT[2] = { TMP51X_BUS_CURRENT_RESULT }; -static struct regmap_config tmp51x_regmap_config = { +static const struct regmap_config tmp51x_regmap_config = { .reg_bits = 8, .val_bits = 16, .max_register = TMP51X_MAX_REGISTER_ADDR, @@ -182,7 +182,7 @@ struct tmp51x_data { struct regmap *regmap; }; -// Set the shift based on the gain 8=4, 4=3, 2=2, 1=1 +// Set the shift based on the gain: 8 -> 1, 4 -> 2, 2 -> 3, 1 -> 4 static inline u8 tmp51x_get_pga_shift(struct tmp51x_data *data) { return 5 - ffs(data->pga_gain); @@ -204,8 +204,11 @@ static int tmp51x_get_value(struct tmp51x_data *data, u8 reg, u8 pos, * 2's complement number shifted by one to four depending * on the pga gain setting. 1lsb = 10uV */ - *val = sign_extend32(regval, 17 - tmp51x_get_pga_shift(data)); - *val = DIV_ROUND_CLOSEST(*val * 10 * MILLI, data->shunt_uohms); + *val = sign_extend32(regval, + reg == TMP51X_SHUNT_CURRENT_RESULT ? + 16 - tmp51x_get_pga_shift(data) : 15); + *val = DIV_ROUND_CLOSEST(*val * 10 * (long)MILLI, (long)data->shunt_uohms); + break; case TMP51X_BUS_VOLTAGE_RESULT: case TMP51X_BUS_VOLTAGE_H_LIMIT: @@ -220,8 +223,8 @@ static int tmp51x_get_value(struct tmp51x_data *data, u8 reg, u8 pos, break; case TMP51X_BUS_CURRENT_RESULT: // Current = (ShuntVoltage * CalibrationRegister) / 4096 - *val = sign_extend32(regval, 16) * data->curr_lsb_ua; - *val = DIV_ROUND_CLOSEST(*val, MILLI); + *val = sign_extend32(regval, 15) * (long)data->curr_lsb_ua; + *val = DIV_ROUND_CLOSEST(*val, (long)MILLI); break; case TMP51X_LOCAL_TEMP_RESULT: case TMP51X_REMOTE_TEMP_RESULT_1: @@ -232,7 +235,7 @@ static int tmp51x_get_value(struct tmp51x_data *data, u8 reg, u8 pos, case TMP51X_REMOTE_TEMP_LIMIT_2: case TMP513_REMOTE_TEMP_LIMIT_3: // 1lsb = 0.0625 degrees centigrade - *val = sign_extend32(regval, 16) >> TMP51X_TEMP_SHIFT; + *val = sign_extend32(regval, 15) >> TMP51X_TEMP_SHIFT; *val = DIV_ROUND_CLOSEST(*val * 625, 10); break; case TMP51X_N_FACTOR_AND_HYST_1: @@ -261,7 +264,7 @@ static int tmp51x_set_value(struct tmp51x_data *data, u8 reg, long val) * The user enter current value and we convert it to * voltage. 1lsb = 10uV */ - val = DIV_ROUND_CLOSEST(val * data->shunt_uohms, 10 * MILLI); + val = DIV_ROUND_CLOSEST(val * (long)data->shunt_uohms, 10 * (long)MILLI); max_val = U16_MAX >> tmp51x_get_pga_shift(data); regval = clamp_val(val, -max_val, max_val); break; diff --git a/drivers/hwmon/tps23861.c b/drivers/hwmon/tps23861.c index d33ecbac00d6..4cb3960d5170 100644 --- a/drivers/hwmon/tps23861.c +++ b/drivers/hwmon/tps23861.c @@ -114,10 +114,9 @@ struct tps23861_data { struct regmap *regmap; u32 shunt_resistor; struct i2c_client *client; - struct dentry *debugfs_dir; }; -static struct regmap_config tps23861_regmap_config = { +static const struct regmap_config tps23861_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = 0x6f, @@ -132,7 +131,7 @@ static int tps23861_read_temp(struct tps23861_data *data, long *val) if (err < 0) return err; - *val = (regval * TEMPERATURE_LSB) - 20000; + *val = ((long)regval * TEMPERATURE_LSB) - 20000; return 0; } @@ -503,25 +502,6 @@ static int tps23861_port_status_show(struct seq_file *s, void *data) DEFINE_SHOW_ATTRIBUTE(tps23861_port_status); -static void tps23861_init_debugfs(struct tps23861_data *data, - struct device *hwmon_dev) -{ - const char *debugfs_name; - - debugfs_name = devm_kasprintf(&data->client->dev, GFP_KERNEL, "%s-%s", - data->client->name, dev_name(hwmon_dev)); - if (!debugfs_name) - return; - - data->debugfs_dir = debugfs_create_dir(debugfs_name, NULL); - - debugfs_create_file("port_status", - 0400, - data->debugfs_dir, - data, - &tps23861_port_status_fops); -} - static int tps23861_probe(struct i2c_client *client) { struct device *dev = &client->dev; @@ -562,18 +542,12 @@ static int tps23861_probe(struct i2c_client *client) if (IS_ERR(hwmon_dev)) return PTR_ERR(hwmon_dev); - tps23861_init_debugfs(data, hwmon_dev); + debugfs_create_file("port_status", 0400, client->debugfs, data, + &tps23861_port_status_fops); return 0; } -static void tps23861_remove(struct i2c_client *client) -{ - struct tps23861_data *data = i2c_get_clientdata(client); - - debugfs_remove_recursive(data->debugfs_dir); -} - static const struct of_device_id __maybe_unused tps23861_of_match[] = { { .compatible = "ti,tps23861", }, { }, @@ -582,7 +556,6 @@ MODULE_DEVICE_TABLE(of, tps23861_of_match); static struct i2c_driver tps23861_driver = { .probe = tps23861_probe, - .remove = tps23861_remove, .driver = { .name = "tps23861", .of_match_table = of_match_ptr(tps23861_of_match), diff --git a/drivers/hwmon/ultra45_env.c b/drivers/hwmon/ultra45_env.c index 2765d5f1b7f0..e4f1bb538628 100644 --- a/drivers/hwmon/ultra45_env.c +++ b/drivers/hwmon/ultra45_env.c @@ -317,7 +317,7 @@ static struct platform_driver env_driver = { .of_match_table = env_match, }, .probe = env_probe, - .remove_new = env_remove, + .remove = env_remove, }; module_platform_driver(env_driver); diff --git a/drivers/hwmon/vexpress-hwmon.c b/drivers/hwmon/vexpress-hwmon.c index d82a3b454d0e..a2e350f52a9e 100644 --- a/drivers/hwmon/vexpress-hwmon.c +++ b/drivers/hwmon/vexpress-hwmon.c @@ -72,7 +72,7 @@ static umode_t vexpress_hwmon_attr_is_visible(struct kobject *kobj, struct device_attribute, attr); if (dev_attr->show == vexpress_hwmon_label_show && - !of_get_property(dev->of_node, "label", NULL)) + !of_property_present(dev->of_node, "label")) return 0; return attr->mode; diff --git a/drivers/hwmon/via-cputemp.c b/drivers/hwmon/via-cputemp.c index 5abe95b683c0..823bff2871e1 100644 --- a/drivers/hwmon/via-cputemp.c +++ b/drivers/hwmon/via-cputemp.c @@ -197,7 +197,7 @@ static struct platform_driver via_cputemp_driver = { .name = DRVNAME, }, .probe = via_cputemp_probe, - .remove_new = via_cputemp_remove, + .remove = via_cputemp_remove, }; struct pdev_entry { diff --git a/drivers/hwmon/via686a.c b/drivers/hwmon/via686a.c index 3a002ad3c005..bbaeb808cc15 100644 --- a/drivers/hwmon/via686a.c +++ b/drivers/hwmon/via686a.c @@ -799,7 +799,7 @@ static struct platform_driver via686a_driver = { .name = DRIVER_NAME, }, .probe = via686a_probe, - .remove_new = via686a_remove, + .remove = via686a_remove, }; static const struct pci_device_id via686a_pci_ids[] = { diff --git a/drivers/hwmon/vt1211.c b/drivers/hwmon/vt1211.c index 2f3890463e18..386edea6b69e 100644 --- a/drivers/hwmon/vt1211.c +++ b/drivers/hwmon/vt1211.c @@ -1221,7 +1221,7 @@ static struct platform_driver vt1211_driver = { .name = DRVNAME, }, .probe = vt1211_probe, - .remove_new = vt1211_remove, + .remove = vt1211_remove, }; static int __init vt1211_device_add(unsigned short address) diff --git a/drivers/hwmon/vt8231.c b/drivers/hwmon/vt8231.c index dcdd14ccd115..3bf27c21845b 100644 --- a/drivers/hwmon/vt8231.c +++ b/drivers/hwmon/vt8231.c @@ -910,11 +910,11 @@ static void vt8231_remove(struct platform_device *pdev) static struct platform_driver vt8231_driver = { - .driver = { + .driver = { .name = DRIVER_NAME, }, .probe = vt8231_probe, - .remove_new = vt8231_remove, + .remove = vt8231_remove, }; static const struct pci_device_id vt8231_pci_ids[] = { diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c index fe960c0a624f..7d7d70afde65 100644 --- a/drivers/hwmon/w83627ehf.c +++ b/drivers/hwmon/w83627ehf.c @@ -895,7 +895,7 @@ store_target_temp(struct device *dev, struct device_attribute *attr, if (err < 0) return err; - val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, 127); + val = DIV_ROUND_CLOSEST(clamp_val(val, 0, 127000), 1000); mutex_lock(&data->update_lock); data->target_temp[nr] = val; @@ -920,7 +920,7 @@ store_tolerance(struct device *dev, struct device_attribute *attr, return err; /* Limit the temp to 0C - 15C */ - val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, 15); + val = DIV_ROUND_CLOSEST(clamp_val(val, 0, 15000), 1000); mutex_lock(&data->update_lock); reg = w83627ehf_read_value(data, W83627EHF_REG_TOLERANCE[nr]); diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c index 2fc9b718e2ab..95115d7b863e 100644 --- a/drivers/hwmon/w83627hf.c +++ b/drivers/hwmon/w83627hf.c @@ -1844,7 +1844,7 @@ static struct platform_driver w83627hf_driver = { .pm = W83627HF_DEV_PM_OPS, }, .probe = w83627hf_probe, - .remove_new = w83627hf_remove, + .remove = w83627hf_remove, }; static int __init w83627hf_find(int sioaddr, unsigned short *addr, diff --git a/drivers/hwmon/w83781d.c b/drivers/hwmon/w83781d.c index cba5ec432e6d..076200ed2ec9 100644 --- a/drivers/hwmon/w83781d.c +++ b/drivers/hwmon/w83781d.c @@ -1192,8 +1192,6 @@ static void w83781d_remove_files(struct device *dev) sysfs_remove_group(&dev->kobj, &w83781d_group_other); } -static const struct i2c_device_id w83781d_ids[]; - static int w83781d_probe(struct i2c_client *client) { struct device *dev = &client->dev; @@ -1208,7 +1206,7 @@ static int w83781d_probe(struct i2c_client *client) mutex_init(&data->lock); mutex_init(&data->update_lock); - data->type = i2c_match_id(w83781d_ids, client)->driver_data; + data->type = (uintptr_t)i2c_get_match_data(client); data->client = client; /* attach secondary i2c lm75-like clients */ @@ -1830,7 +1828,7 @@ static struct platform_driver w83781d_isa_driver = { .name = "w83781d", }, .probe = w83781d_isa_probe, - .remove_new = w83781d_isa_remove, + .remove = w83781d_isa_remove, }; /* return 1 if a supported chip is found, 0 otherwise */ diff --git a/drivers/hwmon/w83791d.c b/drivers/hwmon/w83791d.c index 9681eaa06c8e..ace854b370a0 100644 --- a/drivers/hwmon/w83791d.c +++ b/drivers/hwmon/w83791d.c @@ -328,7 +328,7 @@ static void w83791d_print_debug(struct w83791d_data *data, struct device *dev); static void w83791d_init_client(struct i2c_client *client); static const struct i2c_device_id w83791d_id[] = { - { "w83791d", 0 }, + { "w83791d" }, { } }; MODULE_DEVICE_TABLE(i2c, w83791d_id); diff --git a/drivers/hwmon/w83792d.c b/drivers/hwmon/w83792d.c index 69ce379a9e13..b0b5f60eea53 100644 --- a/drivers/hwmon/w83792d.c +++ b/drivers/hwmon/w83792d.c @@ -296,7 +296,7 @@ static void w83792d_print_debug(struct w83792d_data *data, struct device *dev); static void w83792d_init_client(struct i2c_client *client); static const struct i2c_device_id w83792d_id[] = { - { "w83792d", 0 }, + { "w83792d" }, { } }; MODULE_DEVICE_TABLE(i2c, w83792d_id); diff --git a/drivers/hwmon/w83793.c b/drivers/hwmon/w83793.c index 96bab94ba899..67728f60333f 100644 --- a/drivers/hwmon/w83793.c +++ b/drivers/hwmon/w83793.c @@ -291,7 +291,7 @@ static void w83793_update_nonvolatile(struct device *dev); static struct w83793_data *w83793_update_device(struct device *dev); static const struct i2c_device_id w83793_id[] = { - { "w83793", 0 }, + { "w83793" }, { } }; MODULE_DEVICE_TABLE(i2c, w83793_id); @@ -1451,7 +1451,6 @@ static long watchdog_ioctl(struct file *filp, unsigned int cmd, static const struct file_operations watchdog_fops = { .owner = THIS_MODULE, - .llseek = no_llseek, .open = watchdog_open, .release = watchdog_close, .write = watchdog_write, diff --git a/drivers/hwmon/w83795.c b/drivers/hwmon/w83795.c index c446e00db658..5174db69db5e 100644 --- a/drivers/hwmon/w83795.c +++ b/drivers/hwmon/w83795.c @@ -2134,8 +2134,6 @@ static void w83795_apply_temp_config(struct w83795_data *data, u8 config, } } -static const struct i2c_device_id w83795_id[]; - static int w83795_probe(struct i2c_client *client) { int i; @@ -2149,7 +2147,7 @@ static int w83795_probe(struct i2c_client *client) return -ENOMEM; i2c_set_clientdata(client, data); - data->chip_type = i2c_match_id(w83795_id, client)->driver_data; + data->chip_type = (uintptr_t)i2c_get_match_data(client); data->bank = i2c_smbus_read_byte_data(client, W83795_REG_BANKSEL); mutex_init(&data->update_lock); diff --git a/drivers/hwmon/w83l785ts.c b/drivers/hwmon/w83l785ts.c index 9c11ed69c055..df77b53a1b2f 100644 --- a/drivers/hwmon/w83l785ts.c +++ b/drivers/hwmon/w83l785ts.c @@ -74,7 +74,7 @@ static struct w83l785ts_data *w83l785ts_update_device(struct device *dev); */ static const struct i2c_device_id w83l785ts_id[] = { - { "w83l785ts", 0 }, + { "w83l785ts" }, { } }; MODULE_DEVICE_TABLE(i2c, w83l785ts_id); diff --git a/drivers/hwmon/w83l786ng.c b/drivers/hwmon/w83l786ng.c index 75874cf7851c..9b81bd406e05 100644 --- a/drivers/hwmon/w83l786ng.c +++ b/drivers/hwmon/w83l786ng.c @@ -741,7 +741,7 @@ w83l786ng_probe(struct i2c_client *client) } static const struct i2c_device_id w83l786ng_id[] = { - { "w83l786ng", 0 }, + { "w83l786ng" }, { } }; MODULE_DEVICE_TABLE(i2c, w83l786ng_id); diff --git a/drivers/hwmon/xgene-hwmon.c b/drivers/hwmon/xgene-hwmon.c index 5e0759a70f6d..2cdbd5f107a2 100644 --- a/drivers/hwmon/xgene-hwmon.c +++ b/drivers/hwmon/xgene-hwmon.c @@ -105,7 +105,7 @@ struct xgene_hwmon_dev { phys_addr_t comm_base_addr; void *pcc_comm_addr; - u64 usecs_lat; + unsigned int usecs_lat; }; /* @@ -706,7 +706,7 @@ static int xgene_hwmon_probe(struct platform_device *pdev) goto out; } - if (!ctx->pcc_comm_addr) { + if (IS_ERR_OR_NULL(ctx->pcc_comm_addr)) { dev_err(&pdev->dev, "Failed to ioremap PCC comm region\n"); rc = -ENOMEM; @@ -772,7 +772,7 @@ MODULE_DEVICE_TABLE(of, xgene_hwmon_of_match); static struct platform_driver xgene_hwmon_driver = { .probe = xgene_hwmon_probe, - .remove_new = xgene_hwmon_remove, + .remove = xgene_hwmon_remove, .driver = { .name = "xgene-slimpro-hwmon", .of_match_table = xgene_hwmon_of_match, |