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2021-12-27hwmon/pmbus: (ir38064) Add support for IR38060, IR38164 IR38263Patrick Rudolph1-2/+26
The IR38060, IR38164 and IR38263 can be supported using this driver. Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Signed-off-by: Arthur Heymans <arthur.heymans@9elements.com> Link: https://lore.kernel.org/r/20211213142814.264802-2-arthur.heymans@9elements.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-12-27hwmon: add driver for NZXT RGB&Fan Controller/Smart Device v2.Aleksandr Mezin2-0/+63
This driver implements monitoring and control of fans plugged into the device. Besides typical speed monitoring and PWM duty cycle control, voltage and current are reported for every fan. The device also has 2 connectors for RGB LEDs, support for them isn't implemented (mainly because there is no standardized sysfs interface). Also, the device has a noise sensor, but the sensor seems to be completely useless (and very imprecise), so support for it isn't implemented too. The driver coexists with userspace tools that access the device through hidraw interface with no known issues. The driver has been tested on x86_64, built in and as a module. Some changes/improvements were suggested by Jonas Malaco. Signed-off-by: Aleksandr Mezin <mezin.alexander@gmail.com> Link: https://lore.kernel.org/r/20211031033058.151014-1-mezin.alexander@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-12-27hwmon: (pmbus) Add support for MPS Multi-phase mp5023Howard.Chiu@quantatw.com2-0/+85
Add support for mp5023 device from Monolithic Power Systems, Inc. (MPS) vendor. This is a Hot-Swap Controller. Signed-off-by: Howard Chiu <howard.chiu@quantatw.com> Link: https://lore.kernel.org/r/HKAPR04MB400349AA406694FB976D78D096709@HKAPR04MB4003.apcprd04.prod.outlook.com [groeck: Added MODULE_IMPORT_NS, entry in index.rst] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-12-27hwmon: (asus_wmi_sensors) Support X370 Asus WMI.Denis Pauk2-0/+79
Provides a Linux kernel module "asus_wmi_sensors" that provides sensor readouts via ASUS' WMI interface present in the UEFI of X370/X470/B450/X399 Ryzen motherboards. Supported motherboards: * ROG CROSSHAIR VI HERO, * PRIME X399-A, * PRIME X470-PRO, * ROG CROSSHAIR VI EXTREME, * ROG CROSSHAIR VI HERO (WI-FI AC), * ROG CROSSHAIR VII HERO, * ROG CROSSHAIR VII HERO (WI-FI), * ROG STRIX B450-E GAMING, * ROG STRIX B450-F GAMING, * ROG STRIX B450-I GAMING, * ROG STRIX X399-E GAMING, * ROG STRIX X470-F GAMING, * ROG STRIX X470-I GAMING, * ROG ZENITH EXTREME, * ROG ZENITH EXTREME ALPHA. Co-developed-by: Ed Brindley <kernel@maidavale.org> Signed-off-by: Ed Brindley <kernel@maidavale.org> Signed-off-by: Denis Pauk <pauk.denis@gmail.com> [groeck: Squashed: "hwmon: Fix warnings in asus_wmi_sensors.rst documetation."] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-12-27hwmon: (asus_wmi_ec_sensors) Support B550 Asus WMI.Denis Pauk2-0/+39
Linux HWMON sensors driver for ASUS motherboards to read sensors from the embedded controller. Many ASUS motherboards do not publish all the available sensors via the Super I/O chip but the missing ones are available through the embedded controller (EC) registers. This driver implements reading those sensor data via the WMI method BREC, which is known to be present in all ASUS motherboards based on the AMD 500 series chipsets (and probably is available in other models too). The driver needs to know exact register addresses for the sensors and thus support for each motherboard has to be added explicitly. The EC registers do not provide critical values for the sensors and as such they are not published to the HWMON. Supported motherboards: * PRIME X570-PRO * Pro WS X570-ACE * ROG CROSSHAIR VIII HERO * ROG CROSSHAIR VIII DARK HERO * ROG CROSSHAIR VIII FORMULA * ROG STRIX X570-E GAMING * ROG STRIX B550-I GAMING * ROG STRIX B550-E GAMING Co-developed-by: Eugene Shalygin <eugene.shalygin@gmail.com> Signed-off-by: Eugene Shalygin <eugene.shalygin@gmail.com> Co-developed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Denis Pauk <pauk.denis@gmail.com> Tested-by: Tor Vic <torvic9@mailbox.org> Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-12-27hwmon: Driver for Texas Instruments INA238Nathan Rossi2-0/+57
The INA238 is a I2C power monitor similar to other INA2xx devices, providing shunt voltage, bus voltage, current, power and temperature measurements. Signed-off-by: Nathan Rossi <nathan.rossi@digi.com> Link: https://lore.kernel.org/r/20211102052754.817220-3-nathan@nathanrossi.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-11-04Merge tag 'driver-core-5.16-rc1' of ↵Linus Torvalds1-554/+42
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the big set of driver core changes for 5.16-rc1. All of these have been in linux-next for a while now with no reported problems. Included in here are: - big update and cleanup of the sysfs abi documentation files and scripts from Mauro. We are almost at the place where we can properly check that the running kernel's sysfs abi is documented fully. - firmware loader updates - dyndbg updates - kernfs cleanups and fixes from Christoph - device property updates - component fix - other minor driver core cleanups and fixes" * tag 'driver-core-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (122 commits) device property: Drop redundant NULL checks x86/build: Tuck away built-in firmware under FW_LOADER vmlinux.lds.h: wrap built-in firmware support under FW_LOADER firmware_loader: move struct builtin_fw to the only place used x86/microcode: Use the firmware_loader built-in API firmware_loader: remove old DECLARE_BUILTIN_FIRMWARE() firmware_loader: formalize built-in firmware API component: do not leave master devres group open after bind dyndbg: refine verbosity 1-4 summary-detail gpiolib: acpi: Replace custom code with device_match_acpi_handle() i2c: acpi: Replace custom function with device_match_acpi_handle() driver core: Provide device_match_acpi_handle() helper dyndbg: fix spurious vNpr_info change dyndbg: no vpr-info on empty queries dyndbg: vpr-info on remove-module complete, not starting device property: Add missed header in fwnode.h Documentation: dyndbg: Improve cli param examples dyndbg: Remove support for ddebug_query param dyndbg: make dyndbg a known cli param dyndbg: show module in vpr-info in dd-exec-queries ...
2021-10-28hwmon: (tmp401) Drop support for TMP461Guenter Roeck1-14/+1
TMP461 is almost identical to TMP451, which is already supported by the lm90 driver. At the same time, unlike other sensors from the TMP401 compatible series, it only supports 8-bit temperature read operations, and it supports negative temperatures when configured for its default temperature range, and it supports a temperature offset register. Supporting this chip in the tmp401 driver adds unnecessary complexity. Remove its support from this driver and support the chip with the lm90 driver instead. Fixes: 24333ac26d01 ("hwmon: (tmp401) use smb word operations instead of 2 smb byte operations") Reported-by: David T. Wilson <david.wilson@nasa.gov> Cc: David T. Wilson <david.wilson@nasa.gov> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-10-28hwmon: (lm90) Add basic support for TI TMP461Guenter Roeck1-0/+10
TMP461 is almost identical to TMP451 and was actually detected as TMP451 with the existing lm90 driver if its I2C address is 0x4c. Add support for it to the lm90 driver. At the same time, improve the chip detection function to at least try to distinguish between TMP451 and TMP461. As a side effect, this fixes commit 24333ac26d01 ("hwmon: (tmp401) use smb word operations instead of 2 smb byte operations"). TMP461 does not support word operations on temperature registers, which causes bad temperature readings with the tmp401 driver. The lm90 driver does not perform word operations on temperature registers and thus does not have this problem. Support is listed as basic because TMP461 supports a sensor resolution of 0.0625 degrees C, while the lm90 driver assumes a resolution of 0.125 degrees C. Also, the TMP461 supports negative temperatures with its default temperature range, which is not the case for similar chips supported by the lm90 and the tmp401 drivers. Those limitations will be addressed with follow-up patches. Fixes: 24333ac26d01 ("hwmon: (tmp401) use smb word operations instead of 2 smb byte operations") Reported-by: David T. Wilson <david.wilson@nasa.gov> Cc: David T. Wilson <david.wilson@nasa.gov> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-10-17hwmon: (dell-smm) Add support for fanX_min, fanX_max and fanX_targetArmin Wolf1-0/+3
The nominal speed of each fan can be obtained with i8k_get_fan_nominal_speed(), however the result is not available from userspace. Change that by adding fanX_min, fanX_max and fanX_target attributes. All are RO since fan control happens over pwm. Tested on a Dell Inspiron 3505 and a Dell Latitude C600. Signed-off-by: Armin Wolf <W_Armin@gmx.de> Reviewed-by: Pali Rohár <pali@kernel.org> Link: https://lore.kernel.org/r/20210926221044.14327-2-W_Armin@gmx.de Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-10-16hwmon: (tmp421) update documentationKrzysztof Adamski1-0/+10
Sysfs interface of the tmp421 driver was extended in the recent patches so lets update the documentation to reflect that. Signed-off-by: Krzysztof Adamski <krzysztof.adamski@nokia.com> Link: https://lore.kernel.org/r/6ae22fdf18513ddd09f430ef9c5e46c17e27886b.1634206677.git.krzysztof.adamski@nokia.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-10-12hwmon: (pmbus/lm25066) Support configurable sense resistor valuesZev Weiss1-0/+2
The appropriate mantissa values for the lm25066 family's direct-format current and power readings are a function of the sense resistor employed between the SENSE and VIN pins of the chip. Instead of assuming that resistance is always the same 1mOhm as used in the datasheet, allow it to be configured via a device-tree property ("shunt-resistor-micro-ohms"). Signed-off-by: Zev Weiss <zev@bewilderbeest.net> Link: https://lore.kernel.org/r/20210928092242.30036-8-zev@bewilderbeest.net [groeck: Fixed checkpatch warnings] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-10-12hwmon: Add Maxim MAX6620 hardware monitoring driverArun Saravanan Balachandran2-0/+47
Add hardware monitoring driver for Maxim MAX6620 Fan controller Originally-from: L. Grunenberg <contact@lgrunenberg.de> Originally-from: Cumulus Networks <support@cumulusnetworks.com> Originally-from: Shuotian Cheng <shuche@microsoft.com> Signed-off-by: Arun Saravanan Balachandran <Arun_Saravanan_Balac@dell.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-10-05ABI: sysfs-class-hwmon: add ABI documentation for itMauro Carvalho Chehab1-554/+42
Move the ABI attributes documentation from: Documentation/hwmon/sysfs-interface.rst in order for it to follow the usual ABI documentation. That allows script/get_abi.pl to properly handle it. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/5f47619ed882b0b8d1c84b56f7ea17bac0854b77.1632994837.git.mchehab+huawei@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-09-13hwmon: (k10temp) Remove residues of current and voltagesuma hegde1-17/+0
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 Savic2-0/+62
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>
2021-08-18hwmon: (sbrmi) Add DocumentationAkshay Gupta2-0/+80
- 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>
2021-08-18dt-bindings: firmware: update arm,scpi.yaml referenceMauro Carvalho Chehab1-1/+1
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>
2021-08-18hwmon: sht4x: update Documentation for Malformed tableRandy Dunlap1-1/+1
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 Marko2-0/+74
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 Rosen2-0/+106
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 Chehab1-1/+2
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 Roeck1-1/+1
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 Roeck1-1/+2
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 Velliangiri2-0/+46
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 Estevam1-0/+1
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 Pasternak1-0/+113
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 Rosen1-4/+7
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 Rosen1-4/+38
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 Chehab2-2/+2
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 Chehab1-1/+1
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 Marko1-2/+4
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 Rosen1-43/+89
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 Chehab1-2/+2
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 Roeck2-120/+0
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 Roeck1-0/+8
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 Rosen2-0/+88
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 Kubernát2-0/+29
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 Rosen1-2/+11
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 Packham2-0/+75
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 Malaco2-0/+43
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 Gottwalt1-1/+12
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 Rosen2-0/+91
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 Packham2-0/+64
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 Marko2-0/+42
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 Roeck1-2/+10
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 Roeck1-112/+73
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>
2021-01-28hwmon: Add AHT10 Temperature and Humidity Sensor DriverJohannes Cornelis Draaijer (datdenkikniet)2-0/+47
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>
2021-01-28hwmon: (nct6683) Support ASRock boardsBlaž Hrastnik1-0/+1
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>
2021-01-28hwmon: (abx500) Decomission abx500 driverGuenter Roeck3-60/+0
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>