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2022-07-13drm/amd/display: Ensure valid event timestamp for cursor-only commitsMichel Dänzer
Requires enabling the vblank machinery for them. Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2030 Signed-off-by: Michel Dänzer <mdaenzer@redhat.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2022-07-13drm/amd/display: correct check of coverage blend modeMelissa Wen
Check the value of per_pixel_alpha to decide whether the Coverage pixel blend mode is applicable or not. Fixes: 76818cdd11a2 ("drm/amd/display: add Coverage blend mode for overlay plane") Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Melissa Wen <mwen@igalia.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-07-13drm/amd/pm: Prevent divide by zeroYefim Barashkin
divide error: 0000 [#1] SMP PTI CPU: 3 PID: 78925 Comm: tee Not tainted 5.15.50-1-lts #1 Hardware name: MSI MS-7A59/Z270 SLI PLUS (MS-7A59), BIOS 1.90 01/30/2018 RIP: 0010:smu_v11_0_set_fan_speed_rpm+0x11/0x110 [amdgpu] Speed is user-configurable through a file. I accidentally set it to zero, and the driver crashed. Reviewed-by: Evan Quan <evan.quan@amd.com> Reviewed-by: André Almeida <andrealmeid@igalia.com> Signed-off-by: Yefim Barashkin <mr.b34r@kolabnow.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2022-07-13drm/amd/display: Only use depth 36 bpp linebuffers on DCN display engines.Mario Kleiner
Various DCE versions had trouble with 36 bpp lb depth, requiring fixes, last time in commit 353ca0fa5630 ("drm/amd/display: Fix 10bit 4K display on CIK GPUs") for DCE-8. So far >= DCE-11.2 was considered ok, but now I found out that on DCE-11.2 it causes dithering when there shouldn't be any, so identity pixel passthrough with identity gamma LUTs doesn't work when it should. This breaks various important neuroscience applications, as reported to me by scientific users of Polaris cards under Ubuntu 22.04 with Linux 5.15, and confirmed by testing it myself on DCE-11.2. Lets only use depth 36 for DCN engines, where my testing showed that it is both necessary for high color precision output, e.g., RGBA16 fb's, and not harmful, as far as more than one year in real-world use showed. DCE engines seem to work fine for high precision output at 30 bpp, so this ("famous last words") depth 30 should hopefully fix all known problems without introducing new ones. Successfully retested on DCE-11.2 Polaris and DCN-1.0 Raven Ridge on top of Linux 5.19.0-rc2 + drm-next. Fixes: 353ca0fa5630 ("drm/amd/display: Fix 10bit 4K display on CIK GPUs") Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com> Tested-by: Mario Kleiner <mario.kleiner.de@gmail.com> Cc: stable@vger.kernel.org # 5.14.0 Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-07-13drm/amdkfd: correct the MEC atomic support firmware checking for GC 10.3.7Prike Liang
On the GC 10.3.7 platform the initial MEC release version #3 can support atomic operation,so need correct and set its MEC atomic support version to #3. Signed-off-by: Prike Liang <Prike.Liang@amd.com> Reviewed-by: Aaron Liu <aaron.liu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org # 5.18.x
2022-07-13drm/amd/display: Ignore First MST Sideband Message Return ErrorFangzhi Zuo
[why] First MST sideband message returns AUX_RET_ERROR_HPD_DISCON on certain intel platform. Aux transaction considered failure if HPD unexpected pulled low. The actual aux transaction success in such case, hence do not return error. [how] Not returning error when AUX_RET_ERROR_HPD_DISCON detected on the first sideband message. v2: squash in additional DMI entries v3: squash in static fix Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com> Acked-by: Solomon Chiu <solomon.chiu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2022-07-13iio: adc: xilinx-xadc: Drop duplicate NULL check in xadc_parse_dt()Andy Shevchenko
The fwnode_for_each_child_node() is NULL-aware, no need to check its parameters outside. Drop duplicate NULL check in xadc_parse_dt(). Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220531141118.64540-2-andriy.shevchenko@linux.intel.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-07-13iio: adc: xilinx-xadc: Make use of device propertiesAndy Shevchenko
Convert the module to be property provider agnostic and allow it to be used on non-OF platforms. Add mod_devicetable.h include. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/20220531141118.64540-1-andriy.shevchenko@linux.intel.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-07-13hwmon: (asus-ec-sensors) add definitions for ROG ZENITH II EXTREMEUrs Schroffenegger
Add definitions for ROG ZENITH II EXTREME and some unknown yet temperature sensors in the second EC bank. Details are available at [1, 2]. [1] https://github.com/zeule/asus-ec-sensors/pull/26 [2] https://github.com/zeule/asus-ec-sensors/issues/16 Signed-off-by: Urs Schroffenegger <nabajour@lampshade.ch> Signed-off-by: Eugene Shalygin <eugene.shalygin@gmail.com> Link: https://lore.kernel.org/r/20220710202639.1812058-2-eugene.shalygin@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (aquacomputer_d5next) Move device-specific data into struct aqc_dataAleksa Savic
As preparation for adding support for more devices in upcoming patches, move device-specific data, such as number of fans, temperature sensors, register offsets etc. to struct aqc_data. This is made possible by the fact that the supported Aquacomputer devices share the same layouts of sensor substructures. This allows aqc_raw_event() and others to stay general and not be cluttered with similar loops for each device. Signed-off-by: Jack Doan <me@jackdoan.com> Signed-off-by: Aleksa Savic <savicaleksa83@gmail.com> Link: https://lore.kernel.org/r/20220707115050.90021-1-savicaleksa83@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (asus-ec-sensors) add missing sensors for X570-I GAMINGEugene Shalygin
VRM and chipset temperature for ROG STRIX X570-I GAMING were missing according to a user contribution to the LHM project [1]. [1] https://github.com/LibreHardwareMonitor/LibreHardwareMonitor/pull/767 Signed-off-by: Eugene Shalygin <eugene.shalygin@gmail.com> Link: https://lore.kernel.org/r/20220710085539.1682869-1-eugene.shalygin@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (drivetemp) Add module aliasLinus Walleij
Adding a MODULE_ALIAS() to drivetemp will make the driver easier for modprobe to autoprobe. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20220712214624.1845158-1-linus.walleij@linaro.org Fixes: 5b46903d8bf3 ("hwmon: Driver for disk and solid state drives with temperature sensors") Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (asus_wmi_sensors) Save a few bytes of memoryChristophe JAILLET
The first 'for' loop of asus_wmi_configure_sensor_setup() only computes the number and type of sensors that exist in the system. Here, the 'temp_sensor' structure is only used to store the data collected by asus_wmi_sensor_info(). There is no point in using a devm_ variant for this allocation. This wastes some memory for no good reason. Use the stack instead. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/e23cea6c489fabb109a61e8a33d146a6b74c0529.1656741926.git.christophe.jaillet@wanadoo.fr Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (lm90) Use worker for alarm notificationsGuenter Roeck
Reporting alarms using hwmon_notify_event() may result in a callback from the thermal subsystem. This means that such notifications must not hold the update lock to avoid a deadlock. To avoid this situation, use a worker to handle notifications. Reported-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Fixes: f6d0775119fb ("hwmon: (lm90) Rework alarm/status handling") Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (asus-ec-sensors) add support for Maximus XI HeroMichael Carns
Add definitions for ROG MAXIMUS XI HERO and ROG MAXIMUS XI HERO (WI-FI) boards. Signed-off-by: Michael Carns <mike@carns.com> Signed-off-by: Eugene Shalygin <eugene.shalygin@gmail.com> Link: https://lore.kernel.org/r/20220627225437.87462-1-eugene.shalygin@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (dell-smm) Improve assembly codeArmin Wolf
The new assembly code works on both 32 bit and 64 bit cpus and allows for more compiler optimisations. Since clang runs out of registers on 32 bit x86 when using CC_OUT, we need to execute "setc" ourself. Also modify the debug message so we can still see the result (eax) when the carry flag was set. Tested with 32 bit and 64 bit kernels on a Dell Inspiron 3505. Signed-off-by: Armin Wolf <W_Armin@gmx.de> Link: https://lore.kernel.org/r/20220220190851.17965-1-W_Armin@gmx.de [groeck: Rebased to v5.19-rc3] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (pmbus/ltc2978) Set voltage resolutionMårten Lindahl
The LTC2977 regulator does not set the regulator_desc .n_voltages value which is needed in order to let the regulator core list the regulator voltage range. This patch defines a regulator_desc with a voltage range, and uses it for defining voltage resolution for regulators LTC2972/LTC2974/LTC2975/ LTC2977/LTC2978/LTC2979/LTC2980/LTM2987 based on that they all have a 16 bit ADC with the same stepwise 122.07uV resolution. It also scales the resolution to a 1mV resolution which is easier to handle. Signed-off-by: Mårten Lindahl <marten.lindahl@axis.com> Link: https://lore.kernel.org/r/20220614095144.3472305-1-marten.lindahl@axis.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (pmbus) Add list_voltage to pmbus opsMårten Lindahl
When checking if a regulator supports a voltage range, the regulator needs to have a list_voltage callback set to the regulator_ops or else -EINVAL will be returned. This support does not exist for the pmbus regulators, so this patch adds pmbus_regulator_list_voltage to the pmbus_regulator_ops. Signed-off-by: Mårten Lindahl <marten.lindahl@axis.com> Link: https://lore.kernel.org/r/20220614093856.3470672-3-marten.lindahl@axis.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (pmbus) Introduce and use cached vout marginsMårten Lindahl
When setting a new voltage the voltage boundaries are read every time to check that the new voltage is within the proper range. Checking these voltage boundaries consists of reading one of PMBUS_MFR_VOUT_MIN/ PMBUS_VOUT_MARGIN_LOW registers and then PMBUS_MFR_VOUT_MAX/ PMBUS_VOUT_MARGIN_HIGH together with writing the PMBUS_CLEAR_FAULTS register. Since these boundaries are never being changed, it can be cached and thus saving unnecessary smbus transmissions. Signed-off-by: Mårten Lindahl <marten.lindahl@axis.com> Link: https://lore.kernel.org/r/20220614093856.3470672-2-marten.lindahl@axis.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (gsc-hwmon) Add missing of_node_put()Liang He
In gsc_hwmon_get_devtree_pdata(), of_find_compatible_node() will return a node pointer with refcount incremented. We should use of_node_put() in fail path or when it is not used anymore. Signed-off-by: Liang He <windhl@126.com> Link: https://lore.kernel.org/r/20220616114024.3985770-1-windhl@126.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (dell-smm) Add Dell G5 5590 to DMI tableArmin Wolf
According to Bug 215983 at bugzilla.kernel.org, the Dell G5 5590 supports the SMM interface and can thus be loaded with ignore_dmi being set. Add the model the DMI table to allow for automatic loadig on this model. Compile-tested only. Signed-off-by: Armin Wolf <W_Armin@gmx.de> Acked-by: Pali Rohár <pali@kernel.org> Link: https://lore.kernel.org/r/20220612232208.27901-1-W_Armin@gmx.de Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (dell-smm) Add Dell XPS 13 7390 to fan control whitelistArmin Wolf
A user reported that the program dell-bios-fan-control worked on his Dell XPS 13 7390 to switch off automatic fan control. Since it uses the same mechanism as the dell_smm_hwmon module, add this model to the fan control whitelist. Compile-tested only. Signed-off-by: Armin Wolf <W_Armin@gmx.de> Acked-by: Pali Rohár <pali@kernel.org> Link: https://lore.kernel.org/r/20220612041806.11367-1-W_Armin@gmx.de Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (nct6775) Drop duplicate NULL check in ->init() and ->exit()Andy Shevchenko
Since platform_device_unregister() is NULL-aware, we don't need to duplicate this check. Remove it and fold the rest of the code. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Zev Weiss <zev@bewilderbeest.net> Link: https://lore.kernel.org/r/20220610103324.87483-1-andriy.shevchenko@linux.intel.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (pmbus) fix build error unused-functionRen Zhijie
If CONFIG_PMBUS is y and CONFIG_DEBUG_FS is not set. make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu-, will be failed, like this: drivers/hwmon/pmbus/pmbus_core.c:593:13: error: ‘pmbus_check_block_register’ defined but not used [-Werror=unused-function] static bool pmbus_check_block_register(struct i2c_client *client, int page, ^~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors make[3]: *** [drivers/hwmon/pmbus/pmbus_core.o] Error 1 make[2]: *** [drivers/hwmon/pmbus] Error 2 make[2]: *** Waiting for unfinished jobs.... make[1]: *** [drivers/hwmon] Error 2 make[1]: *** Waiting for unfinished jobs.... make: *** [drivers] Error 2 To fix building warning, use __maybe_unused to attach this func. Reported-by: Hulk Robot <hulkci@huawei.com> Fixes: c3ffc3a1ff83("hwmon: (pmbus) add a function to check the presence of a block register") Signed-off-by: Ren Zhijie <renzhijie2@huawei.com> Link: https://lore.kernel.org/r/20220609120448.139907-1-renzhijie2@huawei.com [groeck: Fixed continuation line alignment] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (lm90) Read the channel's temperature offset from device-treeSlawomir Stepien
Try to read the channel's temperature offset from device-tree. Having offset in device-tree node is not mandatory. The offset can only be set for remote channels. Signed-off-by: Slawomir Stepien <slawomir.stepien@nokia.com> Link: https://lore.kernel.org/r/20220607063504.1287855-3-sst@poczta.fm Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (lm90) Add support for 2nd remote channel's offset registerSlawomir Stepien
The ADT7481 have LM90_HAVE_TEMP3 and LM90_HAVE_OFFSET flags, but the support of second remote channel's offset is missing. Add that implementation. Signed-off-by: Slawomir Stepien <slawomir.stepien@nokia.com> Link: https://lore.kernel.org/r/20220607063504.1287855-2-sst@poczta.fm Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (occ) Delete unnecessary NULL checkZiyang Xuan
kvfree(NULL) is safe. NULL check before kvfree() is not needed. Delete them to simplify the code. Generated by coccinelle script: scripts/coccinelle/free/ifnullfree.cocci Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com> Reviewed-by: Eddie James <eajames@linux.ibm.com> Link: https://lore.kernel.org/r/20220606131401.4053036-1-william.xuanziyang@huawei.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (lm90) Read the channel's label from device-treeSlawomir Stepien
Try to read the channel's label from device-tree. Having label in device-tree node is not mandatory. Signed-off-by: Slawomir Stepien <slawomir.stepien@nokia.com> Link: https://lore.kernel.org/r/20220525073657.573327-7-sst@poczta.fm Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (lm90) Define maximum number of channels that are supportedSlawomir Stepien
Use this define in all the places where literal '3' was used in this context. Signed-off-by: Slawomir Stepien <slawomir.stepien@nokia.com> Link: https://lore.kernel.org/r/20220525073657.573327-6-sst@poczta.fm Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (lm90) Add compatible entry for adt7481Slawomir Stepien
This will allow binding the driver with the device from the device tree. Signed-off-by: Slawomir Stepien <slawomir.stepien@nokia.com> Link: https://lore.kernel.org/r/20220525073657.573327-4-sst@poczta.fm Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: Allow to compile ASB100 and FSCHMD on !X86Uwe Kleine-König
The two drivers compile just fine on ARCH=arm. Allow to select these drivers if COMPILE_TEST is enabled. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Jean Delvare <jdelvare@suse.de> Link: https://lore.kernel.org/r/20220527153445.1871086-1-u.kleine-koenig@pengutronix.de Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (pmbus) add MFR_* registers to debugfsAdam Wujek
Add registers to debugfs: PMBUS_MFR_ID PMBUS_MFR_MODEL PMBUS_MFR_REVISION PMBUS_MFR_LOCATION PMBUS_MFR_DATE PMBUS_MFR_SERIAL To reduce the number of debugfs entries, only values from page 0 are reported. It is assumed that values of these registers are the same for all pages. Please note that the PMBUS standard allows added registers to be page-specific. Signed-off-by: Adam Wujek <dev_public@wujek.eu> Link: https://lore.kernel.org/r/20220601013232.801133-2-dev_public@wujek.eu Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (pmbus) add a function to check the presence of a block registerAdam Wujek
Other functions (like pmbus_check_byte_register) cannot be used to check the presence of a block register, because it will generate error when PEC is used. Signed-off-by: Adam Wujek <dev_public@wujek.eu> Link: https://lore.kernel.org/r/20220601013232.801133-1-dev_public@wujek.eu Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (asus-ec-sensors) add support for Strix Z690-a D4Shady Nawara
adds T_Sensor and VRM Temp sensors for the Asus Strix z690-a D4 motherboard Signed-off-by: Shady Nawara <shady.nawara@outlook.com> Signed-off-by: Eugene Shalygin <eugene.shalygin@gmail.com> Link: https://lore.kernel.org/r/20220603122758.1561064-1-eugene.shalygin@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (sch56xx-common) Add DMI override tableArmin Wolf
Some devices like the Fujitsu Celsius W380 do contain a working sch56xx hardware monitoring device, but do not contain the necessary DMI onboard device. Do not check for the presence of an suitable onboard device on these machines. The list of affected machines was created using data collected by the Linux Hardware Project. Tested on a Fujitsu Esprimo P720, but sadly not on a affected machine. Fixes: 393935baa45e (hwmon: (sch56xx-common) Add automatic module loading on supported devices) Signed-off-by: Armin Wolf <W_Armin@gmx.de> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20220604220200.2567-1-W_Armin@gmx.de Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (lm75) Replace kernel.h with the necessary inclusionsChristophe JAILLET
When kernel.h is used in the headers it adds a lot into dependency hell, especially when there are circular dependencies are involved. Replace kernel.h inclusion with the list of what is really being used. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/4e07ed43274ad912d4efcfc04f673f25e8f89fdc.1654289489.git.christophe.jaillet@wanadoo.fr Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (f71882fg) Add support for F71858AD (0x0903)Aleksander Mazur
Treat F71858AD like F71858FG. Tested on Igel D220. Signed-off-by: Aleksander Mazur <deweloper@wp.pl> Link: https://lore.kernel.org/r/20220605012114.3d85a75a@mocarz Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (pmbus) Add support for Analog Devices LT7182SGuenter Roeck
Add support for Analog Devices LT7182S Dual Channel 6A, 20V PolyPhase Step-Down Silent Switcher with Digital Power System Management. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (pmbus) Add IEEE 754 half precision support to PMBus coreGuenter Roeck
Add support for the IEEE 754 half precision data format as specified in PMBus v1.3.1. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (lm90) Support temp_samples attributeGuenter Roeck
Several of the chips supported by this driver support configuring the number of samples (or the fault queue depth) necessary before a fault or alarm is reported. This is done either with a bit in the configuration register or with a separate "consecutive alert" register. Support this functionality with the temp_samples attribute. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (lm90) Add table with supported Analog/ONSEMI devicesGuenter Roeck
Add table with device names and known register values for supported devices from Analog / ON Semiconductor. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (lm90) Add support and detection of Philips/NXP NE1618Guenter Roeck
NE1618 is similar to NE1617 but supports manufacturer and chip ID registers as well as 11 bit external temperature resolution. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (lm90) Add explicit support for ADM1020Guenter Roeck
ADM1020 is compatible with ADM1021 but has a separate chip revision and a limited I2C address range. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (lm90) Only disable alerts if not already disabledGuenter Roeck
It was observed that the alert handler may be called from the i2c core even after alerts have already been disabled. Only disable alerts if they have not already been disabled. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (lm90) Add support for ADT7421Guenter Roeck
ADT7421 is similar to ADT7461A but supports configurable Beta Compensation. Packet Error Checking (PEC) is supported but undocumented. A devicetree node is not added for the added chip since it is quite unlikely that such an old chip will ever be used in a devicetree based system. It can be added later if needed. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (lm90) Add support for ON Semiconductor NCT218Guenter Roeck
NCT218 is compatible to NCT72 and NCT214. It also supports PEC (packet error checking). Similar to NCT72 and NCT214, PEC support is undocumented. Unlike NCT214 and NCT72, NCT218 does not support the undocumented secondary chip and manufacturer ID registers at 0x3e and 0x3f and returns 0x00 when reading those registers. The value for the chip revision register is not documented but was observed to be 0xca. Use that information to improve chip detection accuracy. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (lm90) Add support for ON Semiconductor NCT214 and NCT72Guenter Roeck
NCT214 and NCT72 are compatible to ADT7461/ADT7461A but have full PEC (packet error checking) support. PEC support is undocumented. Both chips support the undocumented secondary chip and manufacturer ID registers at 0x3e and 0x3f, and return 0x61 as chip ID. Use this information to improve the accuracy of chip detection code. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (lm90) Add explicit support for NCT210Guenter Roeck
Unlike ADM1023 and compatible chips, NCT210 does not support a temperature offset register. A real chip was found to have a chip revision of 0x3f. Use it to detect NCT210 explicitly. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (lm90) Combine lm86 and lm90 configurationGuenter Roeck
LM86 and LM90 support exactly the same features, so there is no need to keep their configuration options separate. Combine to reduce data size. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (lm90) Add remaining chips supported by adm1021 driverGuenter Roeck
All chips supported by the ADM1021 driver are also supported by the LM90 driver. Make that support official. After this change, the adm1021 driver is only needed if the lm90 driver is disabled. Also, the adm1021 driver misdetects a variety of chips as MAX1617A, which is unwanted if any of those chips is in the system. For this reason. make the adm1021 driver dependent on !SENSORS_LM90 to show that it is not needed if the lm90 driver is enabled, and to avoid misdetection if a chip supported by the lm90 driver is in the system. Devicetree nodes are not added for the added chips since it is quite unlikely that such old chips will ever be used in a devicetree based system. They can be added later if needed. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
generated by cgit (git 2.34.1) at 2025-09-21 08:02:32 +0000