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2021-09-12hwmon: (k10temp) Remove residues of current and voltagesuma hegde
Commit id "b00647c46c9d7f6ee1ff6aaf335906101755e614", adds reporting current and voltage to k10temp.c The commit id "0a4e668b5d52eed8026f5d717196b02b55fb2dc6", removed reporting current and voltage from k10temp.c The curr and in(voltage) entries are not removed from "k10temp_info" structure. Removing those residue entries. while at it, update k10temp driver documentation Signed-off-by: suma hegde <suma.hegde@amd.com> Cc: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210902174155.7365-2-nchatrad@amd.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-08-28hwmon: add driver for Aquacomputer D5 NextAleksa Savic
This driver exposes hardware sensors of the Aquacomputer D5 Next watercooling pump, which communicates through a proprietary USB HID protocol. Available sensors are pump and fan speed, power, voltage and current, as well as coolant temperature. Also available through debugfs are the serial number, firmware version and power-on count. Attaching a fan is optional and allows it to be controlled using temperature curves directly from the pump. If it's not connected, the fan-related sensors will report zeroes. The pump can be configured either through software or via its physical interface. Configuring the pump through this driver is not implemented, as it seems to require sending it a complete configuration. That includes addressable RGB LEDs, for which there is no standard sysfs interface. Thus, that task is better suited for userspace tools. This driver has been tested on x86_64, both in-kernel and as a module. Signed-off-by: Aleksa Savic <savicaleksa83@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-08-17hwmon: (sbrmi) Add DocumentationAkshay Gupta
- Add documentation for SB-RMI module Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Akshay Gupta <Akshay.Gupta@amd.com> Signed-off-by: Naveen Krishna Chatradhi <nchatrad@amd.com> Link: https://lore.kernel.org/r/20210726133615.9709-2-nchatrad@amd.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-08-17dt-bindings: firmware: update arm,scpi.yaml referenceMauro Carvalho Chehab
Changeset 1496be719468 ("dt-bindings: firmware: arm,scpi: Convert to json schema") renamed: Documentation/devicetree/bindings/arm/arm,scpi.txt to: Documentation/devicetree/bindings/firmware/arm,scpi.yaml. Update its cross-reference accordingly. Fixes: 1496be719468 ("dt-bindings: firmware: arm,scpi: Convert to json schema") Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by: Sudeep Holla <sudeep.holla@arm.com> Link: https://lore.kernel.org/r/b5a2b0cb83e7f8193b4be4cef9250dd4c42877ab.1626947923.git.mchehab+huawei@kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-08-17hwmon: sht4x: update Documentation for Malformed tableRandy Dunlap
Make top and bottom border lines match. Documentation/hwmon/sht4x.rst:42: WARNING: Malformed table. Text in column margin in table line 4. Fixes: 505c2549373f ("hwmon: Add sht4x Temperature and Humidity Sensor Driver") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Navin Sankar Velliangiri <navin@linumiz.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Jean Delvare <jdelvare@suse.com> Cc: linux-hwmon@vger.kernel.org Link: https://lore.kernel.org/r/20210727232054.7426-1-rdunlap@infradead.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-06-17hwmon: (pmbus) Add driver for Delta DPS-920AB PSURobert Marko
This adds support for the Delta DPS-920AB PSU. Only missing feature is fan control which the PSU supports. Signed-off-by: Robert Marko <robert.marko@sartura.hr> Link: https://lore.kernel.org/r/20210607103431.2039073-1-robert.marko@sartura.hr [groeck: Add MODULE_IMPORT_NS(PMBUS);] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-06-17hwmon: (pmbus/pim4328) Add documentation for the pim4328 PMBus driverErik Rosen
Add documentation and index link for pim4328 PMBus driver. Signed-off-by: Erik Rosen <erik.rosen@metormote.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-06-17docs: hwmon: adm1177.rst: avoid using ReSt :doc:`foo` markupMauro Carvalho Chehab
The :doc:`foo` tag is auto-generated via automarkup.py. So, use the filename at the sources, instead of :doc:`foo`. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/32b0db7e79a3ed0e817213113c607a1b819e3867.1622898327.git.mchehab+huawei@kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-06-17hwmon: (max31790) Fix pwmX_enable attributesGuenter Roeck
pwmX_enable supports three possible values: 0: Fan control disabled. Duty cycle is fixed to 0% 1: Fan control enabled, pwm mode. Duty cycle is determined by values written into Target Duty Cycle registers. 2: Fan control enabled, rpm mode Duty cycle is adjusted such that fan speed matches the values in Target Count registers The current code does not do this; instead, it mixes pwm control configuration with fan speed monitoring configuration. Worse, it reports that pwm control would be disabled (pwmX_enable==0) when it is in fact enabled in pwm mode. Part of the problem may be that the chip sets the "TACH input enable" bit on its own whenever the mode bit is set to RPM mode, but that doesn't mean that "TACH input enable" accurately reflects the pwm mode. Fix it up and only handle pwm control with the pwmX_enable attributes. In the documentation, clarify that disabling pwm control (pwmX_enable=0) sets the pwm duty cycle to 0%. In the code, explain why TACH_INPUT_EN is set together with RPM_MODE. While at it, only update the configuration register if the configuration has changed, and only update the cached configuration if updating the chip configuration was successful. Cc: Jan Kundrát <jan.kundrat@cesnet.cz> Cc: Václav Kubernát <kubernat@cesnet.cz> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Václav Kubernát <kubernat@cesnet.cz> Reviewed-by: Jan Kundrát <jan.kundrat@cesnet.cz> Link: https://lore.kernel.org/r/20210526154022.3223012-4-linux@roeck-us.net
2021-06-17hwmon: (max31790) Report correct current pwm duty cyclesGuenter Roeck
The MAX31790 has two sets of registers for pwm duty cycles, one to request a duty cycle and one to read the actual current duty cycle. Both do not have to be the same. When reporting the pwm duty cycle to the user, the actual pwm duty cycle from pwm duty cycle registers needs to be reported. When setting it, the pwm target duty cycle needs to be written. Since we don't know the actual pwm duty cycle after a target pwm duty cycle has been written, set the valid flag to false to indicate that actual pwm duty cycle should be read from the chip instead of using cached values. Cc: Jan Kundrát <jan.kundrat@cesnet.cz> Cc: Václav Kubernát <kubernat@cesnet.cz> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Václav Kubernát <kubernat@ceesnet.cz> Reviewed-by: Jan Kundrát <jan.kundrat@cesnet.cz> Link: https://lore.kernel.org/r/20210526154022.3223012-3-linux@roeck-us.net
2021-06-17hwmon: Add sht4x Temperature and Humidity Sensor DriverNavin Sankar Velliangiri
This patch adds a hwmon driver for the SHT4x Temperature and Humidity sensor. Signed-off-by: Navin Sankar Velliangiri <navin@linumiz.com> [groeck: dropped unnecessary empty line and continuation lines] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-06-17docs: hwmon: Add an entry for mp2888Fabio Estevam
The entry for mp2888 is missing and it causes the following 'make htmldocs' build warning: Documentation/hwmon/mp2888.rst: WARNING: document isn't included in any toctree Add the mp2888 entry. Signed-off-by: Fabio Estevam <festevam@gmail.com> Link: https://lore.kernel.org/r/20210521172218.37592-1-festevam@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-06-17hwmon: (pmbus) Add support for MPS Multi-phase mp2888 controllerVadim Pasternak
Add support for mp2888 device from Monolithic Power Systems, Inc. (MPS) vendor. This is a digital, multi-phase, pulse-width modulation controller. This device supports: - One power rail. - Programmable Multi-Phase up to 10 Phases. - PWM-VID Interface - One pages 0 for telemetry. - Programmable pins for PMBus Address. - Built-In EEPROM to Store Custom Configurations. - Can configured VOUT readout in direct or VID format and allows setting of different formats on rails 1 and 2. For VID the following protocols are available: VR13 mode with 5-mV DAC; VR13 mode with 10-mV DAC, IMVP9 mode with 5-mV DAC. Signed-off-by: Vadim Pasternak <vadimp@nvidia.com> Reported-by: kernel test robot <lkp@intel.com> Link: https://lore.kernel.org/r/20210511055619.118104-3-vadimp@nvidia.com [groeck: Add MODULE_IMPORT_NS] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-06-17hwmon: (pmbus) Add support for additional Flex BMR converters to pmbusErik Rosen
Add support for Flex BMR310, BMR456, BMR457, BMR458, BMR480, BMR490, BMR491 and BMR492 to the pmbus driver Signed-off-by: Erik Rosen <erik.rosen@metormote.com> Link: https://lore.kernel.org/r/20210507194023.61138-4-erik.rosen@metormote.com [groeck: Fixed minor whitespace error] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-06-17hwmon: (pmbus) Add documentation for new flagsErik Rosen
Add documentation for the new pmbus flags PMBUS_WRITE_PROTECTED, PMBUS_NO_CAPABILITY and PMBUS_READ_STATUS_AFTER_FAILED_CHECK Signed-off-by: Erik Rosen <erik.rosen@metormote.com> Link: https://lore.kernel.org/r/20210507194023.61138-3-erik.rosen@metormote.com [groeck: Added newline at end of file] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-06-17docs: hwmon: avoid using UTF-8 charsMauro Carvalho Chehab
While UTF-8 characters can be used at the Linux documentation, the best is to use them only when ASCII doesn't offer a good replacement. So, replace the occurences of the following UTF-8 characters: - U+2010 ('‐'): HYPHEN - U+2013 ('–'): EN DASH - U+2019 ('’'): RIGHT SINGLE QUOTATION MARK Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/ccdd1bf45963a7748188a97c75f667b37bd43d2f.1620641727.git.mchehab+huawei@kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-06-17docs: hwmon: ir36021.rst: replace some charactersMauro Carvalho Chehab
The conversion tools used during DocBook/LaTeX/html/Markdown->ReST conversion and some cut-and-pasted text contain some characters that aren't easily reachable on standard keyboards and/or could cause troubles when parsed by the documentation build system. Replace the occurences of the following characters: - U+2010 ('‐'): HYPHEN as ASCII HYPHEN is preferred over U+2010 Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/ba8b5122ac9d4918fd966d0eb0a5ca9d89044b04.1621159997.git.mchehab+huawei@kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-06-17hwmon: (lm75) Add TI TMP1075 supportRobert Marko
TI TMP1075 is a LM75 compatible sensor, so lets add support for it. Signed-off-by: Robert Marko <robert.marko@sartura.hr> Link: https://lore.kernel.org/r/20210429121150.106804-1-robert.marko@sartura.hr Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-06-17hwmon: (pmbus/zl6100) Update documentation for zl6100 driverErik Rosen
Update documentation for zl6100 driver and fix dead links to technical specifications Signed-off-by: Erik Rosen <erik.rosen@metormote.com> Link: https://lore.kernel.org/r/20210423153329.33457-3-erik.rosen@metormote.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-05-11docs: hwmon: tmp103.rst: fix bad usage of UTF-8 charsMauro Carvalho Chehab
While UTF-8 characters can be used at the Linux documentation, the best is to use them only when ASCII doesn't offer a good replacement. So, replace the occurences of the following UTF-8 characters: - U+2013 ('–'): EN DASH In this specific case, EN DASH was used instead of a minus sign. So, replace it by a single hyphen. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/73b3c7c1eef5c12ddc941624d23689313bd56529.1620744606.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-04-20hwmon: Remove amd_energy driverGuenter Roeck
Commit 60268b0e8258 ("hwmon: (amd_energy) modify the visibility of the counters") restricted visibility of AMD energy counters to work around a side-channel attack using energy data to determine which instructions are executed. The attack is described in 'PLATYPUS: Software-based Power Side-Channel Attacks on x86'. It relies on quick and accurate energy readings. This change made the counters provided by the amd_energy driver effectively unusable for non-provileged users. However, unprivileged read access is the whole point of hardware monitoring attributes. An attempt to remedy the situation by limiting and randomizing access to chip registers was rejected by AMD. Since the driver is for all practical purposes unusable, remove it. Cc: Naveen Krishna Chatradhi <nchatrad@amd.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-04-20hwmon: Clarify scope of attribute accessGuenter Roeck
Hardware monitoring sysfs attributes are used and displayed by unrestricted userspace applications. Standard attributes therefore have to be world readable, since otherwise those userspace applications would either have to run as super-user or display an error. None of those makes sense. Clarify the expected scope of attribute access in the ABI document. Cc: Naveen Krishna Chatradhi <nchatrad@amd.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-04-20hwmon: (pmbus) Add pmbus driver for MAX15301Erik Rosen
Add pmbus driver support for Maxim MAX15301 InTune Automatically Compensated Digital PoL Controller with Driver and PMBus Telemetry Even though the specification does not specifically mention it, extensive empirical testing has revealed that auto-detection of limit-registers will fail in a random fashion unless the delay parameter is set to above about 80us. The default delay is set to 100us to include some safety margin. This patch is tested on a Flex BMR461 converter module. Signed-off-by: Erik Rosen <erik.rosen@metormote.com> Link: https://lore.kernel.org/r/20210419101251.24840-1-erik.rosen@metormote.com [groeck: Added rationale for delay to driver header] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-04-20hwmon: Add driver for fsp-3y PSUs and PDUsVáclav Kubernát
This patch adds support for these devices: - YH-5151E - the PDU - YM-2151E - the PSU The device datasheet says that the devices support PMBus 1.2, but in my testing, a lot of the commands aren't supported and if they are, they sometimes behave strangely or inconsistently. For example, writes to the PAGE command requires using PEC, otherwise the write won't work and the page won't switch, even though, the standard says that PEC is optional. On the other hand, writes to SMBALERT don't require PEC. Because of this, the driver is mostly reverse engineered with the help of a tool called pmbus_peek written by David Brownell (and later adopted by my colleague Jan Kundrát). The device also has some sort of a timing issue when switching pages, which is explained further in the code. Because of this, the driver support is limited. It exposes only the values that have been tested to work correctly. Signed-off-by: Václav Kubernát <kubernat@cesnet.cz> Link: https://lore.kernel.org/r/20210414080019.3530794-1-kubernat@cesnet.cz [groeck: Fixed up "missing braces around initializer" from 0-day] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-04-20hwmon: (pmbus/tps53679) Add support for TI TPS53676Erik Rosen
Add support for TI TPS53676 controller to the tps53679 pmbus driver The driver uses the USER_DATA_03 register to figure out how many phases are enabled and to which channel they are assigned, and sets the number of pages and phases accordingly. Signed-off-by: Erik Rosen <erik.rosen@metormote.com> Link: https://lore.kernel.org/r/20210322193734.75127-3-erik.rosen@metormote.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-04-20hwmon: (pmbus) Add driver for BluTek BPA-RS600Chris Packham
The BPA-RS600 is a compact 600W AC to DC removable power supply module. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210317040231.21490-3-chris.packham@alliedtelesis.co.nz [groeck: Added bpa-rs600 to index.rst] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-04-20hwmon: add driver for NZXT Kraken X42/X52/X62/X72Jonas Malaco
These are "all-in-one" CPU liquid coolers that can be monitored and controlled through a proprietary USB HID protocol. While the models have differently sized radiators and come with varying numbers of fans, they are all indistinguishable at the software level. The driver exposes fan/pump speeds and coolant temperature through the standard hwmon sysfs interface. Fan and pump control, while supported by the devices, are not currently exposed. The firmware accepts up to 61 trip points per channel (fan/pump), but the same set of trip temperatures has to be maintained for both; with pwmX_auto_point_Y_temp attributes, users would need to maintain this invariant themselves. Instead, fan and pump control, as well as LED control (which the device also supports for 9 addressable RGB LEDs on the CPU water block) are left for existing and already mature user-space tools, which can still be used alongside the driver, thanks to hidraw. A link to one, which I also maintain, is provided in the documentation. The implementation is based on USB traffic analysis. It has been runtime tested on x86_64, both as a built-in driver and as a module. Signed-off-by: Jonas Malaco <jonas@protocubo.io> Link: https://lore.kernel.org/r/20210319045544.416138-1-jonas@protocubo.io [groeck: Removed unnecessary spinlock.h include] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-04-20hwmon: (corsair-psu) add support for critical valuesWilken Gottwalt
Adds support for reading the critical values of the temperature sensors and the rail sensors (voltage and current) once and caches them. Updates the naming of the constants following a more clear scheme. Also updates the documentation and fixes some typos. Updates is_visible and ops_read functions to be more readable. The new sensors output of a Corsair HX850i will look like this: corsairpsu-hid-3-1 Adapter: HID adapter v_in: 230.00 V v_out +12v: 12.14 V (crit min = +8.41 V, crit max = +15.59 V) v_out +5v: 5.03 V (crit min = +3.50 V, crit max = +6.50 V) v_out +3.3v: 3.30 V (crit min = +2.31 V, crit max = +4.30 V) psu fan: 0 RPM vrm temp: +46.2°C (crit = +70.0°C) case temp: +39.8°C (crit = +70.0°C) power total: 152.00 W power +12v: 108.00 W power +5v: 41.00 W power +3.3v: 5.00 W curr +12v: 9.00 A (crit max = +85.00 A) curr +5v: 8.31 A (crit max = +40.00 A) curr +3.3v: 1.62 A (crit max = +40.00 A) Signed-off-by: Wilken Gottwalt <wilken.gottwalt@posteo.net> Link: https://lore.kernel.org/r/YFNg6vGk3sQmyqgB@monster.powergraphx.local Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-04-20hwmon: (pmbus/stpddc60) Add ST STPDDC60 pmbus driverErik Rosen
Add hardware monitoring support for ST STPDDC60 Unversal Digital Multicell Controller. Signed-off-by: Erik Rosen <erik.rosen@metormote.com> Link: https://lore.kernel.org/r/20210218115249.28513-3-erik.rosen@metormote.com [groeck: Fixed whitespace error in Makefile] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-04-20hwmon: (pmbus) Add driver for Infineon IR36021Chris Packham
The IR36021 is a dual‐loop digital multi‐phase buck controller. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Link: https://lore.kernel.org/r/20210301035954.16713-3-chris.packham@alliedtelesis.co.nz Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-02-12hwmon: add Texas Instruments TPS23861 driverRobert Marko
Add basic monitoring support as well as port on/off control for Texas Instruments TPS23861 PoE PSE IC. Signed-off-by: Robert Marko <robert.marko@sartura.hr> Cc: Luka Perkov <luka.perkov@sartura.hr> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210121134434.2782405-2-robert.marko@sartura.hr Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-01-29hwmon: (pmbus/max16601) Add support for MAX16508Guenter Roeck
MAX16508 is quite similar to MAX16601, except that it does not support the DEFAULT_NUM_POP register and we thus can not dynamically determine the number of populated phases. Cc: Alex Qiu <xqiu@google.com> Cc: Ugur Usug <Ugur.Usug@maximintegrated.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210125185327.93282-2-linux@roeck-us.net Reviewed-by: Alex Qiu <xqiu@google.com> Tested-by: Alex Qiu <xqiu@google.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-01-29hwmon: (pmbus/max16601) Determine and use number of populated phasesGuenter Roeck
The MAX16601 can report the number of populated phases. Use this information to only create sysfs attributes for populated phases. Cc: Alex Qiu <xqiu@google.com> Cc: Ugur Usug <Ugur.Usug@maximintegrated.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210125185327.93282-1-linux@roeck-us.net Reviewed-by: Alex Qiu <xqiu@google.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-01-27hwmon: Add AHT10 Temperature and Humidity Sensor DriverJohannes Cornelis Draaijer (datdenkikniet)
This patch adds a hwmon driver for the AHT10 Temperature and Humidity sensor. It has a maximum sample rate, as the datasheet states that the chip may heat up if it is sampled more than once every two seconds. Has been tested a to work on a raspberrypi0w Signed-off-by: Johannes Cornelis Draaijer (datdenkikniet) <jcdra1@gmail.com> Link: https://lore.kernel.org/r/20210107194014.GA88780@desktop [groeck: dropped AHT10_ADDR (unused) and use AHT10_MEAS_SIZE where appropriate; dropped change log] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-01-27hwmon: (nct6683) Support ASRock boardsBlaž Hrastnik
Tested with ASRock X570 Phantom Gaming-ITX/TB3. It also appears on other ASRock boards. Signed-off-by: Blaž Hrastnik <blaz@mxxn.io> Link: https://lore.kernel.org/r/b08d641c-3fb5-4845-85f7-e1753149cd7d@www.fastmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-01-27hwmon: (abx500) Decomission abx500 driverGuenter Roeck
This deletes the ABx500 hwmon driver, the only supported variant being the AB8500. This driver has been replaced by generic frameworks. By inspecting the abx500 sysfs files we see that it contains things such as temp1_max, temp1_max_alarm, temp1_max_hyst, temp1_max_hyst_alarm, temp1_min, temp1_min_alarm. It becomes obvious that the abx500.c is a reimplementation of thermal zones. This is not very strange as the generic thermal zones were not invented when this driver was merged so people were rolling their own. The ab8500.c driver contains conversion tables for handling a thermistor on ADC channels AUX1 and AUX2. I managed to replace the functionality of the driver with: - Activation of the ntc_thermistor.c driver, CONFIG_SENSORS_NTC_THERMISTOR - Activation of thermal zones, CONFIG_THERMAL - In the device tree, connecting the NTC driver to the processed IIO channels from the AB8500 GPADC ADC forming two instances of NTC sensors. - Connecting the two NTC sensors to a "chassis" thermal zone in the device tree and setting that to hit the CPU frequency at 50 degrees celsius and do a critical shutdown at 70 degrees celsius, deploying a policy using the sensors. After talking to the original authors we concluded that the driver was never properly parameterized in production so what we now have in the device tree is already puts the thermistors to better use than what the hwmon driver did. The two remaining channels for two battery temperatures is already handled in the charging algorithms but can be optionally extended to thermal zones as well if we want these to trigger critical shutdown for the platform. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20201221125521.768082-1-linus.walleij@linaro.org [groeck: Removed documentation and fixed up Makefile, Kconfig] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-01-21hwmon: (ina2) update ti,ina2xx.yaml reference in documentationMauro Carvalho Chehab
Changeset 94f1ab944565 ("dt-bindings: hwmon: convert TI INA2xx bindings to dt-schema") renamed: Documentation/devicetree/bindings/hwmon/ina2xx.txt to: Documentation/devicetree/bindings/hwmon/ti,ina2xx.yaml. Update its cross-reference accordingly. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/886bd248721b146d844d46e26ddd4cd277f51446.1610535350.git.mchehab+huawei@kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-12-30hwmon: (sbtsi_temp) Fix Documenation kernel-doc warningRandy Dunlap
Fix Documentation/hwmon/ kernel-doc warning in 5.11-rc1: lnx-511-rc1/Documentation/hwmon/sbtsi_temp.rst:4: WARNING: Title underline too short. Kernel driver sbtsi_temp ================== Fixes: 6ec3fcf556fe ("hwmon: (sbtsi) Add documentation") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Kun Yi <kunyi@google.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Jean Delvare <jdelvare@suse.com> Cc: linux-hwmon@vger.kernel.org Link: https://lore.kernel.org/r/20201229035428.31270-1-rdunlap@infradead.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-12-12hwmon: (sbtsi) Add documentationKun Yi
Document the SB-TSI sensor interface driver. Signed-off-by: Kun Yi <kunyi@google.com> Link: https://lore.kernel.org/r/20201211215427.3281681-3-kunyi@google.com [groeck: Added SPDX license identifier, same as source] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-12-11dt-bindings: hwmon: convert AD ADM1275 bindings to dt-schemaKrzysztof Kozlowski
Convert the Analog Devices ADM1275 bindings to dt-schema. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20201117220807.208747-4-krzk@kernel.org [groeck: Removed unnecessary type ($ref) declaration] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-12-11hwmon: (pmbus/q54sj108a2) Correct title underline lengthLukas Bulwahn
Commit b722d7b9e4da ("hwmon: (pmbus) Driver for Delta power supplies Q54SJ108A2") provides new documentation for DELTA Q54SJ108A2NC* drivers, but the title underline was too short. make htmldocs warns: Documentation/hwmon/q54sj108a2.rst:4: WARNING: Title underline too short. Adjust the title underline to the correct length. Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Link: https://lore.kernel.org/r/20201207152658.32444-1-lukas.bulwahn@gmail.com [groeck: Adjust subject] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-12-11hwmon: (ltc2992) Add supportAlexandru Tachici
LTC2992 is a rail-to-rail system monitor that measures current, voltage, and power of two supplies. Two ADCs simultaneously measure each supply’s current. A third ADC monitors the input voltages and four auxiliary external voltages. Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-12-11hwmon: (pmbus) Driver for Delta power supplies Q54SJ108A2xiao.ma
The driver supports Q54SJ108A2 series modules of Delta. Standard attributes are in sysfs, and other attributes are in debugfs. Signed-off-by: xiao.ma <xiao.mx.ma@deltaww.com> Link: https://lore.kernel.org/r/20201202025900.1842-1-max701@126.com [groeck: Replaced spaces with tabs, dropped excessive spaces, fixed module prefix in documentation] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-12-07hwmon: Add driver for STMicroelectronics PM6764 Voltage RegulatorCharles
Add the pmbus driver for the STMicroelectronics pm6764 voltage regulator. the output voltage use the MFR_READ_VOUT 0xD4 vout value returned is linear11 Signed-off-by: Charles Hsu <hsu.yungteng@gmail.com> [groeck: Fixed various compile errors; marked pm6764tr_of_match __maybe_unused] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-12-02hwmon: (nct6683) Support NCT6687D.David Bartley
This is found on many MSI motherboards. Signed-off-by: David Bartley <andareed@gmail.com> Link: https://lore.kernel.org/r/20201202025057.5492-1-andareed@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-12-02docs: hwmon: Document max127 driverTao Ren
Add documentation for the max127 hardware monitoring driver. Signed-off-by: Tao Ren <rentao.bupt@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20201123185658.7632-3-rentao.bupt@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-12-02docs: hwmon: (amd_energy) update documentationNaveen Krishna Chatradhi
Update the supported processors and mention vulnerability fix. Signed-off-by: Naveen Krishna Chatradhi <NaveenKrishna.Chatradhi@amd.com> Link: https://lore.kernel.org/r/20201119184246.228322-2-NaveenKrishna.Chatradhi@amd.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-12-02hwmon: add Corsair PSU HID controller driverWilken Gottwalt
The Corsair digital power supplies of the series RMi, HXi and AXi include a small micro-controller with a lot of sensors attached. The sensors can be accessed by an USB connector from the outside. This micro-controller provides the data by a simple proprietary USB HID protocol. The data consist of temperatures, current and voltage levels, power usage, uptimes, fan speed and some more. It is also possible to configure the PSU (fan mode, mono/multi-rail, over current protection). This driver provides access to the sensors/statistics of the RMi and HXi series power supplies. It does not support configuring these devices, because there would be many ways to misconfigure or even damage the PSU. This patch adds: - hwmon driver corsair-psu - hwmon documentation - updates MAINTAINERS Signed-off-by: Wilken Gottwalt <wilken.gottwalt@posteo.net> Link: https://lore.kernel.org/r/20201027131710.GA253280@monster.powergraphx.local Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-12-02hwmon: (pmbus) shrink code and remove pmbus_do_remove()Bartosz Golaszewski
The only action currently performed in pmbus_do_remove() is removing the debugfs hierarchy. We can schedule a devm action at probe time and remove pmbus_do_remove() entirely from all pmbus drivers. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Link: https://lore.kernel.org/r/20201026105352.20359-1-brgl@bgdev.pl [groeck: Removed references to pmbus_do_remove from documentation] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-10-28docs: hwmon: mp2975.rst: address some html build warningsMauro Carvalho Chehab
.../Documentation/hwmon/mp2975.rst:25: WARNING: Unexpected indentation. .../Documentation/hwmon/mp2975.rst:27: WARNING: Block quote ends without a blank line; unexpected unindent. .../Documentation/hwmon/mp2975.rst:69: WARNING: Unexpected indentation. .../Documentation/hwmon/mp2975.rst:70: WARNING: Block quote ends without a blank line; unexpected unindent. .../Documentation/hwmon/mp2975.rst:72: WARNING: Bullet list ends without a blank line; unexpected unindent. .../Documentation/hwmon/mp2975.rst: WARNING: document isn't included in any toctree List blocks should have blank lines before and after them, in order to be properly parsed. Fixes: 4beb7a028e9f ("hwmon: (pmbus) Add support for MPS Multi-phase mp2975 controller") Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/b02f98d886ab1f5af233f8999c7a15529fc52cdc.1603791716.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
generated by cgit (git 2.34.1) at 2024-06-04 22:47:45 +0000