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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>
2021-04-20hwmon: 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>
2021-02-12hwmon: 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>
2021-01-27hwmon: 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: (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>
2020-12-12hwmon: (sbtsi) Add basic support for SB-TSI sensorsKun Yi
SB Temperature Sensor Interface (SB-TSI) is an SMBus compatible interface that reports AMD SoC's Ttcl (normalized temperature), and resembles a typical 8-pin remote temperature sensor's I2C interface to BMC. This commit adds basic support using this interface to read CPU temperature, and read/write high/low CPU temp thresholds. To instantiate this driver on an AMD CPU with SB-TSI support, the i2c bus number would be the bus connected from the board management controller (BMC) to the CPU. The i2c address is specified in Section 6.3.1 of the spec [1]: The SB-TSI address is normally 98h for socket 0 and 90h for socket 1, but it could vary based on hardware address select pins. [1]: https://www.amd.com/system/files/TechDocs/56255_OSRR.pdf Test status: tested reading temp1_input, and reading/writing temp1_max/min. Signed-off-by: Kun Yi <kunyi@google.com> Link: https://lore.kernel.org/r/20201211215427.3281681-2-kunyi@google.com 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>
2020-12-02hwmon: (max127) Add Maxim MAX127 hardware monitoring driverTao Ren
Add hardware monitoring driver for the Maxim MAX127 chip. MAX127 min/max range handling code is inspired by the max197 driver. Signed-off-by: Tao Ren <rentao.bupt@gmail.com> Link: https://lore.kernel.org/r/20201123185658.7632-2-rentao.bupt@gmail.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>
2020-10-14Merge tag 'mfd-next-5.10' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "New Drivers: - Add support for initialising shared (between children) Regmaps - Add support for Kontron SL28CPLD - Add support for ENE KB3930 Embedded Controller - Add support for Intel FPGA PAC MAX 10 BMC New Device Support: - Add support for Power to Ricoh RN5T618 - Add support for UART to Intel Lakefield - Add support for LP87524_Q1 to Texas Instruments LP87565 New Functionality: - Device Tree; ene-kb3930, sl28cpld, syscon, lp87565, lp87524-q1 - Use new helper dev_err_probe(); madera-core, stmfx, wcd934x - Use new GPIOD API; dm355evm_msp - Add wake-up capability; sprd-sc27xx-spi - Add ACPI support; kempld-core Fix-ups: - Trivial (spelling/whitespace); Kconfig, ab8500 - Fix for unused variables; khadas-mcu, kempld-core - Remove unused header file(s); mt6360-core - Use correct IRQ flags in docs; act8945a, gateworks-gsc, rohm,bd70528-pmic - Add COMPILE_TEST support; asic3, tmio_core - Add dependency on I2C; SL28CPLD Bug Fixes: - Fix memory leak(s); sm501 - Do not free regmap_config's 'name' until exit; syscon" * tag 'mfd-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (34 commits) mfd: kempld-core: Fix unused variable 'kempld_acpi_table' when !ACPI mfd: sl28cpld: Depend on I2C mfd: asic3: Build if COMPILE_TEST=y dt-bindings: mfd: Correct interrupt flags in examples mfd: Add ACPI support to Kontron PLD driver mfd: intel-m10-bmc: Add Intel MAX 10 BMC chip support for Intel FPGA PAC mfd: lp87565: Add LP87524-Q1 variant dt-bindings: mfd: Add LP87524-Q1 dt-bindings: mfd: lp87565: Convert to yaml mfd: mt6360: Remove unused include <linux/version.h> mfd: sm501: Fix leaks in probe() mfd: syscon: Don't free allocated name for regmap_config dt-bindings: mfd: syscon: Document Exynos3 and Exynos5433 compatibles dt-bindings: mfd: syscon: Merge Samsung Exynos Sysreg bindings dt-bindings: mfd: ab8500: Remove weird Unicode characters mfd: sprd: Add wakeup capability for PMIC IRQ mfd: intel-lpss: Add device IDs for UART ports for Lakefield mfd: dm355evm_msp: Convert LEDs to GPIO descriptor table mfd: wcd934x: Simplify with dev_err_probe() mfd: stmfx: Simplify with dev_err_probe() ...
2020-10-06hwmon: Add hardware monitoring driver for Moortec MR75203 PVT controllerRahul Tanwar
PVT controller (MR75203) is used to configure & control Moortec embedded analog IP which contains temprature sensor(TS), voltage monitor(VM) & process detector(PD) modules. Add hardware monitoring driver to support MR75203 PVT controller. Signed-off-by: Rahul Tanwar <rahul.tanwar@linux.intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Link: https://lore.kernel.org/r/05b59cd860d2a1aa0a68ab300829efe709645184.1601889876.git.rahul.tanwar@linux.intel.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-10-04hwmon: Add hwmon driver for Intel MAX 10 BMCXu Yilun
This patch adds hwmon functionality for Intel MAX 10 BMC chip. This BMC chip connects to a set of sensor chips to monitor current, voltage, thermal and power of different components on board. The BMC firmware is responsible for sensor data sampling and recording in shared registers. Host driver reads the sensor data from these shared registers and exposes them to users as hwmon interfaces. Signed-off-by: Xu Yilun <yilun.xu@intel.com> Signed-off-by: Wu Hao <hao.wu@intel.com> Signed-off-by: Matthew Gerlach <matthew.gerlach@linux.intel.com> Signed-off-by: Tom Rix <trix@redhat.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/1600669071-26235-3-git-send-email-yilun.xu@intel.com [groeck: Adjusted subject] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-09-17hwmon: Add support for the sl28cpld hardware monitoring controllerMichael Walle
Add support for the hardware monitoring controller of the sl28cpld board management controller. This driver is part of a multi-function device. Signed-off-by: Michael Walle <michael@walle.cc> Acked-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-07-24hwmon: sparx5: Add Sparx5 SoC temperature driverLars Povlsen
This patch adds a temperature sensor driver to the Sparx5 SoC. Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20200618135951.25441-4-lars.povlsen@microchip.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-07-24hwmon: add Corsair Commander Pro driverMarius Zachmann
This is v7 of a driver for the Corsair Commander Pro. It provides sysfs attributes for: - Reading fan speed - Reading temp sensors - Reading voltage values - Writing pwm and reading last written pwm - Reading fan and temp connection status It is an usb driver, so it needs to be ignored by usbhid. The Corsair Commander Pro is a fan controller and provides no means for user interaction. The two device numbers are there, because there is a slightly different version of the same device. (Only difference seem to be in some presets.) Squashed: hwmon: (corsair-cpro) add fan_target This adds fan_target entries to the corsair-cpro driver. Reading the attribute from the device does not seem possible, so it returns the last set value (same as pwm). send_usb_cmd now has one more argument, which is needed for the fan_target command. hwmon: corsair-cpro: Change to HID driver This changes corsair-cpro to a hid driver using hid reports. Signed-off-by: Marius Zachmann <mail@mariuszachmann.de> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20200626055936.4441-1-mail@mariuszachmann.de Link: https://lore.kernel.org/r/20200709141413.30790-1-mail@mariuszachmann.de [groeck: Squashed follow-up patches to avoid changes in HID code] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-28hwmon: Add Baikal-T1 PVT sensor driverSerge Semin
Baikal-T1 SoC provides an embedded process, voltage and temperature sensor to monitor an internal SoC environment (chip temperature, supply voltage and process monitor) and on time detect critical situations, which may cause the system instability and even damages. The IP-block is based on the Analog Bits PVT sensor, but is equipped with a dedicated control wrapper, which provides a MMIO registers-based access to the sensor core functionality (APB3-bus based) and exposes an additional functions like thresholds/data ready interrupts, its status and masks, measurements timeout. All of these is used to create a hwmon driver being added to the kernel by this commit. The driver implements support for the hardware monitoring capabilities of Baikal-T1 process, voltage and temperature sensors. PVT IP-core consists of one temperature and four voltage sensors, each of which is implemented as a dedicated hwmon channel config. The driver can optionally provide the hwmon alarms for each sensor the PVT controller supports. The alarms functionality is made compile-time configurable due to the hardware interface implementation peculiarity, which is connected with an ability to convert data from only one sensor at a time. Additional limitation is that the controller performs the thresholds checking synchronously with the data conversion procedure. Due to these limitations in order to have the hwmon alarms automatically detected the driver code must switch from one sensor to another, read converted data and manually check the threshold status bits. Depending on the measurements timeout settings this design may cause additional burden on the system performance. By default if the alarms kernel config is disabled the data conversion is performed by the driver on demand when read operation is requested via corresponding _input-file. Co-developed-by: Maxim Kaurkin <maxim.kaurkin@baikalelectronics.ru> Signed-off-by: Maxim Kaurkin <maxim.kaurkin@baikalelectronics.ru> Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Rob Herring <robh+dt@kernel.org> Cc: linux-mips@vger.kernel.org Cc: devicetree@vger.kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-22Merge tag 'ib-mfd-hwmon-v5.8' into hwmon-nextGuenter Roeck
Immutable branch between MFD and HWMON due for the v5.8 merge window
2020-05-22hwmon: Add amd_energy driver to report energy countersNaveen Krishna Chatradhi
This patch adds hwmon based amd_energy driver support for family 17h processors from AMD. The driver provides following interface to the userspace 1. Reports the per core consumption * file: "energy%d_input", label: "Ecore%03d" 2. Reports per socket energy consumption * file: "energy%d_input", label: "Esocket%d" 3. To, increase the wrap around time of the socket energy counters, a 64bit accumultor is implemented. 4. Reports scaled energy value in Joules. Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Naveen Krishna Chatradhi <nchatrad@amd.com> Link: https://lore.kernel.org/r/20200519155011.56184-1-nchatrad@amd.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-20hwmon: Add Gateworks System Controller supportTim Harvey
The Gateworks System Controller has a hwmon sub-component that exposes up to 16 ADC's, some of which are temperature sensors, others which are voltage inputs. The ADC configuration (register mapping and name) is configured via device-tree and varies board to board. Signed-off-by: Tim Harvey <tharvey@gateworks.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-03-08hwmon: Support ADI Fan Control IPNuno Sá
The purpose of this IP Core is to control the fan used for the cooling of a Xilinx Zynq Ultrascale+ MPSoC without the need of any external temperature sensors. To achieve this, the IP core uses the PL SYSMONE4 primitive to obtain the PL temperature and, based on those readings, it then outputs a PWM signal to control the fan rotation accordingly. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20191009102806.262241-1-nuno.sa@analog.com [groeck: adi,pulses-per-revolution -> pulses-per-revolution; dropped unused 'res' from probe function] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: (adm1177) Add ADM1177 Hot Swap Controller and Digital Power Monitor ↵Beniamin Bia
driver ADM1177 is a Hot Swap Controller and Digital Power Monitor with Soft Start Pin. Datasheet: Link: https://www.analog.com/media/en/technical-documentation/data-sheets/ADM1177.pdf Signed-off-by: Beniamin Bia <beniamin.bia@analog.com> Link: https://lore.kernel.org/r/20200114112159.25998-1-beniamin.bia@analog.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: Driver for disk and solid state drives with temperature sensorsGuenter Roeck
Reading the temperature of ATA drives has been supported for years by userspace tools such as smarttools or hddtemp. The downside of such tools is that they need to run with super-user privilege, that the temperatures are not reported by standard tools such as 'sensors' or 'libsensors', and that drive temperatures are not available for use in the kernel's thermal subsystem. This driver solves this problem by adding support for reading the temperature of ATA drives from the kernel using the hwmon API and by adding a temperature zone for each drive. With this driver, the hard disk temperature can be read using the unprivileged 'sensors' application: $ sensors drivetemp-scsi-1-0 drivetemp-scsi-1-0 Adapter: SCSI adapter temp1: +23.0°C or directly from sysfs: $ grep . /sys/class/hwmon/hwmon9/{name,temp1_input} /sys/class/hwmon/hwmon9/name:drivetemp /sys/class/hwmon/hwmon9/temp1_input:23000 If the drive supports SCT transport and reports temperature limits, those are reported as well. drivetemp-scsi-0-0 Adapter: SCSI adapter temp1: +27.0°C (low = +0.0°C, high = +60.0°C) (crit low = -41.0°C, crit = +85.0°C) (lowest = +23.0°C, highest = +34.0°C) The driver attempts to use SCT Command Transport to read the drive temperature. If the SCT Command Transport feature set is not available, or if it does not report the drive temperature, drive temperatures may be readable through SMART attributes. Since SMART attributes are not well defined, this method is only used as fallback mechanism. Cc: Chris Healy <cphealy@gmail.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Martin K. Petersen <martin.petersen@oracle.com> Cc: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Tested-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: Driver for MAX31730Guenter Roeck
MAX31730 is a 3-Channel Remote Temperature Sensor. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-11-21hwmon: Add driver for Texas Instruments TMP512/513 sensor chips.Eric Tremblay
TI's TMP512/513 are I2C/SMBus system monitor chips. These chips monitor the supply voltage, supply current, power consumption and provide one local and up to three (TMP513) remote temperature sensors. It has been tested using a TI TMP513 development kit (TMP513EVM) Signed-off-by: Eric Tremblay <etremblay@distech-controls.com> Link: https://lore.kernel.org/r/20191112223001.20844-3-etremblay@distech-controls.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-11-06hwmon: Add support for ltc2947Nuno Sá
The ltc2947 is a high precision power and energy monitor with an internal sense resistor supporting up to +/- 30A. Three internal no Latency ADCs ensure accurate measurement of voltage and current, while high-bandwidth analog multiplication of voltage and current provides accurate power measurement in a wide range of applications. Internal or external clocking options enable precise charge and energy measurements. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20191021154115.319073-1-nuno.sa@analog.com [groeck: Removed unnecessary checks when reading temperature and energy; PAGE{0,1} -> LTC2947_PAGE_{0,1}] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-09-22Merge tag 'mips_5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linuxLinus Torvalds
Pull MIPS updates from Paul Burton: "Main MIPS changes: - boot_mem_map is removed, providing a nice cleanup made possible by the recent removal of bootmem. - Some fixes to atomics, in general providing compiler barriers for smp_mb__{before,after}_atomic plus fixes specific to Loongson CPUs or MIPS32 systems using cmpxchg64(). - Conversion to the new generic VDSO infrastructure courtesy of Vincenzo Frascino. - Removal of undefined behavior in set_io_port_base(), fixing the behavior of some MIPS kernel configurations when built with recent clang versions. - Initial MIPS32 huge page support, functional on at least Ingenic SoCs. - pte_special() is now supported for some configurations, allowing among other things generic fast GUP to be used. - Miscellaneous fixes & cleanups. And platform specific changes: - Major improvements to Ingenic SoC support from Paul Cercueil, mostly enabled by the inclusion of the new TCU (timer-counter unit) drivers he's spent a very patient year or so working on. Plus some fixes for X1000 SoCs from Zhou Yanjie. - Netgear R6200 v1 systems are now supported by the bcm47xx platform. - DT updates for BMIPS, Lantiq & Microsemi Ocelot systems" * tag 'mips_5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (89 commits) MIPS: Detect bad _PFN_SHIFT values MIPS: Disable pte_special() for MIPS32 with RiXi MIPS: ralink: deactivate PCI support for SOC_MT7621 mips: compat: vdso: Use legacy syscalls as fallback MIPS: Drop Loongson _CACHE_* definitions MIPS: tlbex: Remove cpu_has_local_ebase MIPS: tlbex: Simplify r3k check MIPS: Select R3k-style TLB in Kconfig MIPS: PCI: refactor ioc3 special handling mips: remove ioremap_cachable mips/atomic: Fix smp_mb__{before,after}_atomic() mips/atomic: Fix loongson_llsc_mb() wreckage mips/atomic: Fix cmpxchg64 barriers MIPS: Octeon: remove duplicated include from dma-octeon.c firmware: bcm47xx_nvram: Allow COMPILE_TEST firmware: bcm47xx_nvram: Correct size_t printf format MIPS: Treat Loongson Extensions as ASEs MIPS: Remove dev_err() usage after platform_get_irq() MIPS: dts: mscc: describe the PTP ready interrupt MIPS: dts: mscc: describe the PTP register range ...
2019-09-03hwmon: Add Synaptics AS370 PVT sensor driverJisheng Zhang
Add a new driver for Synaptics AS370 PVT sensors. Currently, only temperature is supported. Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20190827113259.4fb64a17@xhacker.debian Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-09-03hwmon: Remove ads1015 driverGuenter Roeck
A driver for ADS1015 with more functionality is available in the iio subsystem. Remove the hwmon driver as duplicate. If the chip is used for hardware monitoring, the iio->hwmon bridge should be used. Cc: Dirk Eibach <eibach@gdsys.de> Link: https://lore.kernel.org/r/1562004758-13025-1-git-send-email-linux@roeck-us.net Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-07-30hwmon: Drop obsolete JZ4740 driverPaul Cercueil
The JZ4740 boards now use the iio-hwmon driver. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Tested-by: Artur Rojek <contact@artur-rojek.eu> Acked-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Paul Burton <paul.burton@mips.com>
2019-04-15hwmon: lochnagar: Add Lochnagar 2 hardware monitoring driverLucas Tanure
Lochnagar is an evaluation and development board for Cirrus Logic Smart CODEC and Amp devices. It allows the connection of most Cirrus Logic devices on mini-cards, as well as allowing connection of various application processor systems to provide a full evaluation platform. This driver adds support for the hardware monitoring features of the Lochnagar 2 to the hwmon API. Monitoring is provided for the board voltages, currents and temperature supported by the board controller chip. Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com> Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-12-16hwmon: Add On-Chip Controller (OCC) hwmon driverEddie James
The OCC is a device embedded on a POWER processor that collects and aggregates sensor data from the processor and system. The OCC can provide the raw sensor data as well as perform thermal and power management on the system. This driver provides a hwmon interface to the OCC from a service processor (e.g. a BMC). The driver supports both POWER8 and POWER9 OCCs. Communications with the POWER8 OCC are established over standard I2C bus. The driver communicates with the POWER9 OCC through the FSI-based OCC driver, which handles the lower-level communication details. This patch lays out the structure of the OCC hwmon driver. There are two platform drivers, one each for P8 and P9 OCCs. These are probed through the I2C tree and the FSI-based OCC driver, respectively. The patch also defines the first common structures and methods between the two OCC versions. Signed-off-by: Eddie James <eajames@linux.ibm.com> [groeck: Fix up SPDX license identifier] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-08-23Merge tag 'armsoc-drivers' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Olof Johansson: "Some of the larger changes this merge window: - Removal of drivers for Exynos5440, a Samsung SoC that never saw widespread use. - Uniphier support for USB3 and SPI reset handling - Syste control and SRAM drivers and bindings for Allwinner platforms - Qualcomm AOSS (Always-on subsystem) reset controller drivers - Raspberry Pi hwmon driver for voltage - Mediatek pwrap (pmic) support for MT6797 SoC" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (52 commits) drivers/firmware: psci_checker: stash and use topology_core_cpumask for hotplug tests soc: fsl: cleanup Kconfig menu soc: fsl: dpio: Convert DPIO documentation to .rst staging: fsl-mc: Remove remaining files staging: fsl-mc: Move DPIO from staging to drivers/soc/fsl staging: fsl-dpaa2: eth: move generic FD defines to DPIO soc: fsl: qe: gpio: Add qe_gpio_set_multiple usb: host: exynos: Remove support for Exynos5440 clk: samsung: Remove support for Exynos5440 soc: sunxi: Add the A13, A23 and H3 system control compatibles reset: uniphier: add reset control support for SPI cpufreq: exynos: Remove support for Exynos5440 ata: ahci-platform: Remove support for Exynos5440 soc: imx6qp: Use GENPD_FLAG_ALWAYS_ON for PU errata soc: mediatek: pwrap: add mt6351 driver for mt6797 SoCs soc: mediatek: pwrap: add pwrap driver for mt6797 SoCs soc: mediatek: pwrap: fix cipher init setting error dt-bindings: pwrap: mediatek: add pwrap support for MT6797 reset: uniphier: add USB3 core reset control dt-bindings: reset: uniphier: add USB3 core reset support ...
2018-07-09hwmon: Add support for RPi voltage sensorStefan Wahren
Currently there is no easy way to detect undervoltage conditions on a remote Raspberry Pi. This hwmon driver retrieves the state of the undervoltage sensor via mailbox interface. The handling based on Noralf's modifications to the downstream firmware driver. In case of an undervoltage condition only an entry is written to the kernel log. CC: "Noralf Trønnes" <noralf@tronnes.org> Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Eric Anholt <eric@anholt.net> Acked-by: Guenter Roeck <linux@roeck-us.net>
2018-07-08hwmon: Add NPCM7xx PWM and Fan driverTomer Maimon
Add Nuvoton BMC NPCM750/730/715/705 Pulse Width Modulation (PWM) and Fan tacho driver. The Nuvoton BMC NPCM750/730/715/705 supports 8 PWM controller outputs and 16 Fan controller inputs. The driver provides a sysfs entries through which the user can configure the duty-cycle value from 0(off) and 255(full speed) and read the fan tacho rpm value. Signed-off-by: Tomer Maimon <tmaimon77@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-07-08hwmon: (mlxreg-fan) Add support for Mellanox FAN driverVadim Pasternak
Driver obtains PWM and tachometers registers location according to the system configuration and creates FAN/PWM hwmon objects and a cooling device. PWM and tachometers are controlled through the on-board programmable device, which exports its register map. This device could be attached to any bus type, for which register mapping is supported. Single instance is created with one PWM control, up to 12 tachometers and one cooling device. It could be as many instances as programmable device supports. Currently driver will be activated from the Mellanox platform driver: drivers/platform/x86/mlx-platform.c. For the future ARM based systems it could be activated from the ARM platform module. Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-02-28hwmon: add support for sensors exported via ARM SCMISudeep Holla
Create a driver to add support for SoC sensors exported by the System Control Processor (SCP) via the System Control and Management Interface (SCMI). The supported sensor types is one of voltage, temperature, current, and power. The sensor labels and values provided by the SCP are exported via the hwmon sysfs interface. Cc: linux-hwmon@vger.kernel.org Acked-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2018-01-02hwmon: Add W83773G driverLei YU
Nuvoton W83773G is a hardware monitor IC providing one local temperature and two remote temperature sensors. Signed-off-by: Lei YU <mine260309@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-11-13Merge tag 'hwmon-for-linus-v4.15' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon updates from Guenter Roeck: - drivers for MAX31785 and MAX6621 - support for AMD family 17h (Ryzen, Threadripper) temperature sensors - various driver cleanups and minor improvements * tag 'hwmon-for-linus-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (30 commits) dt-bindings: pmbus: Add Maxim MAX31785 documentation pmbus: Add driver for Maxim MAX31785 Intelligent Fan Controller hwmon: (aspeed-pwm-tacho) Sort headers hwmon: (xgene) Minor clean up of ifdef and acpi_match_table reference hwmon: (max6621) Inverted if condition in max6621_read() hwmon: (asc7621) remove redundant assignment to newval hwmon: (xgene) Support hwmon v2 hwmon: (gpio-fan) Fix null pointer dereference at probe hwmon: (gpio-fan) Convert to use GPIO descriptors hwmon: (gpio-fan) Rename GPIO line state variables hwmon: (gpio-fan) Get rid of the gpio alarm struct hwmon: (gpio-fan) Get rid of platform data struct hwmon: (gpio-fan) Mandate OF_GPIO and cut pdata path hwmon: (gpio-fan) Send around device pointer hwmon: (gpio-fan) Localize platform data hwmon: (gpio-fan) Use local variable pointers hwmon: (gpio-fan) Move DT bindings to the right place Documentation: devicetree: add max6621 device hwmon: (max6621) Add support for Maxim MAX6621 temperature sensor hwmon: (w83793) make const array watchdog_minors static, reduces object code size ...
2017-11-02License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-10-29hwmon: (max6621) Add support for Maxim MAX6621 temperature sensorVadim Pasternak
MAX6621 is a PECI-to-I2C translator provides an efficient, low-cost solution for PECI-to-SMBus/I2C protocol conversion. It allows reading the temperature from the PECI-compliant host directly from up to four PECI-enabled CPUs. Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-09-01hwmon: (ltq-cputemp) add cpu temp sensor driverFlorian Eckert
Add the lantiq cpu temperature sensor support for xrx200. Signed-off-by: Florian Eckert <fe@dev.tdt.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-04-30hwmon: (twl4030-madc) drop driverSebastian Reichel
This driver is no longer needed: * It has no mainline users * It has no DT support and OMAP is DT only * iio-hwmon can be used for madc, which also works with DT Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Acked-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-04-10drivers: hwmon: Support for ASPEED PWM/Fan tachJaghathiswari Rankappagounder Natarajan
The ASPEED AST2400/2500 PWM controller supports 8 PWM output ports. The ASPEED AST2400/2500 Fan tach controller supports 16 tachometer inputs. The device driver matches on the device tree node. The configuration values are read from the device tree and written to the respective registers. The driver provides a sysfs entries through which the user can configure the duty-cycle value (ranging from 0 to 100 percent) and read the fan tach rpm value. Signed-off-by: Jaghathiswari Rankappagounder Natarajan <jaghu@google.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-02-03hwmon: new driver for ST stts751 thermal sensorandrea.merello
This patch adds a HWMON driver for ST Microelectronics STTS751 temperature sensors. Thanks-to: LABBE Corentin [for suggestions] Thanks-to: Guenter Roeck [for suggestion and discussions] Signed-off-by: Andrea Merello <andrea.merello@gmail.com> Cc: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-12-09hwmon: Add Texas Instruments TMP108 temperature sensor driver.John Muir
Add support for the TI TMP108 temperature sensor with some device configuration parameters. Signed-off-by: John Muir <john@jmuir.com> [groeck: Initialize of_match_table] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-12-02hwmon: Add tc654 driverChris Packham
Add support for the tc654 and tc655 fan controllers from Microchip. http://ww1.microchip.com/downloads/en/DeviceDoc/20001734C.pdf Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Acked-by: Rob Herring <robh@kernel.org> [groeck: Fixed continuation line alignments] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-09-08hwmon: Add xgene hwmon driverhotran
This patch adds hardware temperature and power reading support for APM X-Gene SoC using the mailbox communication interface. Signed-off-by: Hoan Tran <hotran@apm.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-07-20hwmon: Add driver for FTS BMC chip "Teutates"Thilo Cestonaro
This driver implements hardware monitoring and watchdog support for the FTS BMC Chip "Teutates". Signed-off-by: Thilo Cestonaro <thilo@cestona.ro> [groeck: Updated subject and description; fixed dependencies] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-06-27hwmon: Add support for INA3221 Triple Current/Voltage MonitorsAndrew F. Davis
Add support for the the INA3221 26v capable, Triple channel, Bi-Directional, Zero-Drift, Low-/High-Side, Current/Voltage Monitor with I2C interface. Signed-off-by: Andrew F. Davis <afd@ti.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-06-27hwmon: add support for Sensirion SHT3x sensorsDavid Frey
This driver implements support for the Sensirion SHT3x-DIS chip, a humidity and temperature sensor. Temperature is measured in degrees celsius, relative humidity is expressed as a percentage. In the sysfs interface, all values are scaled by 1000, i.e. the value for 31.5 degrees celsius is 31500. Signed-off-by: Pascal Sachs <pascal.sachs@sensirion.com> [groeck: Fixed 'Variable length array is used' gcc warning] Signed-off-by: Guenter Roeck <linux@roeck-us.net>