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2021-08-28hwmon: add driver for Aquacomputer D5 NextAleksa Savic1-0/+10
This driver exposes hardware sensors of the Aquacomputer D5 Next watercooling pump, which communicates through a proprietary USB HID protocol. Available sensors are pump and fan speed, power, voltage and current, as well as coolant temperature. Also available through debugfs are the serial number, firmware version and power-on count. Attaching a fan is optional and allows it to be controlled using temperature curves directly from the pump. If it's not connected, the fan-related sensors will report zeroes. The pump can be configured either through software or via its physical interface. Configuring the pump through this driver is not implemented, as it seems to require sending it a complete configuration. That includes addressable RGB LEDs, for which there is no standard sysfs interface. Thus, that task is better suited for userspace tools. This driver has been tested on x86_64, both in-kernel and as a module. Signed-off-by: Aleksa Savic <savicaleksa83@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-08-17hwmon: Add support for SB-RMI power moduleAkshay Gupta1-0/+10
On AMD platforms the Out-of-band access is provided by Advanced Platform Management Link (APML), APML is a SMBus v2.0 compatible 2-wire processor client interface. APML is also referred as the sideband interface (SBI). APML is used to communicate with the Side-Band Remote Management Interface (SB-RMI) which provides Soft Mailbox messages to manage power consumption and power limits of the CPU socket. - This module add support to read power consumption, power limit & max power limit and write power limit. - To instantiate this driver on a Board Management Controller (BMC) connected to an AMD CPU with SB-RMI support, the i2c bus number would be the bus connected from the BMC to the CPU. 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/20210726133615.9709-1-nchatrad@amd.com [groeck: Fix uninitialized variable problem when reporting max power] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-06-17hwmon: Add sht4x Temperature and Humidity Sensor DriverNavin Sankar Velliangiri1-0/+11
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: Remove amd_energy driverGuenter Roeck1-10/+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: add driver for NZXT Kraken X42/X52/X62/X72Jonas Malaco1-0/+10
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 Marko1-0/+11
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)1-0/+10
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 Roeck1-13/+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>
2020-12-12hwmon: (sbtsi) Add basic support for SB-TSI sensorsKun Yi1-0/+10
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 support for GPIOs.Alexandru Tachici1-0/+1
LTC2992 has 4 open-drain GPIOS. This patch exports to user space the 4 GPIOs using the GPIO driver Linux API. Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-12-11hwmon: (ltc2992) Add supportAlexandru Tachici1-0/+11
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 Ren1-0/+9
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 Gottwalt1-0/+13
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 git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfdLinus Torvalds1-0/+10
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 Tanwar1-0/+10
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>
2020-10-05hwmon: (mlxreg-fan) Fix double "Mellanox"Geert Uytterhoeven1-1/+1
Remove the duplicate "Mellanox" in the help text for the Mellanox FAN driver configuration option. Fixes: 65afb4c8e7e4e7e7 ("hwmon: (mlxreg-fan) Add support for Mellanox FAN driver") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20201005124843.26688-1-geert+renesas@glider.be Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-10-04hwmon: Add hwmon driver for Intel MAX 10 BMCXu Yilun1-0/+11
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 Walle1-0/+10
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 Povlsen1-0/+10
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 Zachmann1-0/+10
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 Semin1-0/+25
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 Roeck1-0/+9
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 Chatradhi1-0/+10
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>
2020-05-22hwmon: (lm90) Add max6654 support to lm90 driverJosh Lehan1-4/+5
Add support for the Maxim MAX6654 to the lm90 driver. The MAX6654 is a temperature sensor, similar to the others, but with some differences regarding the configuration register, and the sampling rate at which extended resolution becomes possible. Signed-off-by: Josh Lehan <krellan@google.com> Link: https://lore.kernel.org/r/20200513184248.145765-1-krellan@google.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-22hwmon: (nct7904) Add watchdog functionYuechao Zhao1-2/+4
Implement watchdog functionality for NCT7904. Signed-off-by: Yuechao Zhao <yuechao.zhao@advantech.com.cn> Link: https://lore.kernel.org/r/20200331052850.5419-1-yuechao.zhao@advantech.com.cn [groeck: Squashed fixup patch] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-20hwmon: Add Gateworks System Controller supportTim Harvey1-0/+9
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>
2020-04-12hwmon: (drivetemp) Use drivetemp's true module name in Kconfig sectionAnn T Ropea1-1/+1
The addition of the support for reading the temperature of ATA drives as per commit 5b46903d8bf3 ("hwmon: Driver for disk and solid state drives with temperature sensors") lists in the respective Kconfig section the name of the module to be optionally built as "satatemp". However, building the kernel modules with "CONFIG_SENSORS_DRIVETEMP=m", does not generate a file named "satatemp.ko". Instead, the rest of the original commit uses the term "drivetemp" and a file named "drivetemp.ko" ends up in the kernel's modules directory. This file has the right ingredients: $ strings /path/to/drivetemp.ko | grep ^description description=Hard drive temperature monitor and modprobing it produces the expected result: # drivetemp is not loaded $ sensors -u drivetemp-scsi-4-0 Specified sensor(s) not found! $ sudo modprobe drivetemp $ sensors -u drivetemp-scsi-4-0 drivetemp-scsi-4-0 Adapter: SCSI adapter temp1: temp1_input: 35.000 temp1_max: 60.000 temp1_min: 0.000 temp1_crit: 70.000 temp1_lcrit: -40.000 temp1_lowest: 20.000 temp1_highest: 36.000 Fix Kconfig by referring to the true name of the module. Fixes: 5b46903d8bf3 ("hwmon: Driver for disk and solid state drives with temperature sensors") Signed-off-by: Ann T Ropea <bedhanger@gmx.de> Link: https://lore.kernel.org/r/20200406235521.185309-1-bedhanger@gmx.de Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-03-08hwmon: Support ADI Fan Control IPNuno Sá1-0/+9
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 driverBeniamin Bia1-0/+10
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 Roeck1-0/+10
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: (w83627ehf) remove nct6775 and nct6776 supportDr. David Alan Gilbert1-3/+2
The nct6775 and nct6776 are supported by the separate nct6775.c driver, so remove the code from the w83627ehf driver. Suggested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Link: https://lore.kernel.org/r/20191225023225.2785-2-linux@treblig.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-01-23hwmon: Driver for MAX31730Guenter Roeck1-1/+11
MAX31730 is a 3-Channel Remote Temperature Sensor. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-11-27Merge tag 'hwmon-for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-stagingLinus Torvalds1-1/+37
Pull hwmon updates from Guenter Roeck: - Add support for Texas Instruments TMP512/513 - Add support for LTC2947 - Add support for BEL PFE1100 and PFE3000 - Various minor improvements and fixes * tag 'hwmon-for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: dell-smm-hwmon: Add documentation hwmon: (dell-smm) Add support for disabling automatic BIOS fan control hwmon: Add driver for Texas Instruments TMP512/513 sensor chips. dt-bindings: hwmon: Add TMP512/513 docs: hwmon: Document bel-pfe pmbus driver hwmon: (pmbus) add driver for BEL PFE1100 and PFE3000 dt-bindings: hwmon: Add ltc2947 documentation hwmon: Add support for ltc2947 hwmon: (ina3221) Add summation feature support hwmon: (tmp421) Allow reading at 2Hz instead of 0.5Hz hwmon: (w83793d) remove redundant assignment to variable res hwmon: (pmbus/ibm-cffps) Add version detection capability dt-bindings: hwmon: Document ibm,cffps compatible string hwmon: abituguru: make array probe_order static, makes object smaller hwmon: (applesmc) switch to using input device polling mode hwmon: (aspeed-pwm-tacho) Use devm_platform_ioremap_resource() in aspeed_pwm_tacho_probe() hwmon: (pmbus/ibm-cffps) Fix LED blink behavior hwmon: (pmbus/ibm-cffps) Switch LEDs to blocking brightness call
2019-11-21hwmon: Add driver for Texas Instruments TMP512/513 sensor chips.Eric Tremblay1-0/+10
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 Sá1-0/+27
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>
2019-11-06hwmon: (applesmc) switch to using input device polling modeDmitry Torokhov1-1/+0
Now that instances of input_dev support polling mode natively, we no longer need to create input_polled_dev instance. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Link: https://lore.kernel.org/r/20191002214345.GA108728@dtor-ws Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-10-18hwmon: ab8500: Convert to IIO ADCLinus Walleij1-1/+2
This switches the AB8500 hardware monitor driver to using the standard IIO ADC channel lookup and conversion routines. Acked-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-09-22Merge tag 'mips_5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linuxLinus Torvalds1-10/+0
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 ...
2019-09-10hwmon: (shtc1) add support for the SHTC3 sensorDan Robertson1-2/+2
Add support for the Sensirion SHTC3 humidity and temperature sensor to the shtc1 module. Signed-off-by: Dan Robertson <dan@dlrobertson.com> Link: https://lore.kernel.org/r/20190905014554.21658-2-dan@dlrobertson.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-09-03hwmon: Add Synaptics AS370 PVT sensor driverJisheng Zhang1-0/+10
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: w83795: Fan control option isn't that dangerousJean Delvare1-6/+1
I have been using SENSORS_W83795_FANCTRL for several years and never had any problem. When the driver was added, I had not tested that part of the driver yet so I wanted to be super cautious, but time has shown that it works just fine. In the long run I even believe that we should drop the option and enable the feature unconditionally. It doesn't do anything until the user explicitly starts twiddling with sysfs attributes anyway. Signed-off-by: Jean Delvare <jdelvare@suse.de> Link: https://lore.kernel.org/r/20190806102123.3118bcc5@endymion Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-09-03hwmon: Remove ads1015 driverGuenter Roeck1-10/+0
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 Cercueil1-10/+0
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>
2019-05-21treewide: Add SPDX license identifier - Makefile/KconfigThomas Gleixner1-0/+1
Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-20hwmon: (max6650) add thermal cooling device capabilityJean-Francois Dagenais1-0/+1
This allows max6650 devices to be referenced in dts as a cooling device. The pwm value seems duplicated in cooling_dev_state but since pwm goes through rounding logic into data->dac, it is modified and messes with the thermal zone state algorithms. It's also better to serve a cache value, thus avoiding periodic actual i2c traffic. Signed-off-by: Jean-Francois Dagenais <jeff.dagenais@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-17docs: hwmon: Add an index file and rename docs to *.rstMauro Carvalho Chehab1-4/+4
Now that all files were converted to ReST format, rename them and add an index. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-04-15hwmon: lochnagar: Add Lochnagar 2 hardware monitoring driverLucas Tanure1-0/+10
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>
2019-03-29hwmon: (w83773g) Select REGMAP_I2C to fix build errorAxel Lin1-0/+1
Select REGMAP_I2C to avoid below build error: ERROR: "__devm_regmap_init_i2c" [drivers/hwmon/w83773g.ko] undefined! Fixes: ee249f271524 ("hwmon: Add W83773G driver") Cc: stable@vger.kernel.org Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-12-29Merge tag 'kconfig-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuildLinus Torvalds1-1/+1
Pull Kconfig updates from Masahiro Yamada: - support -y option for merge_config.sh to avoid downgrading =y to =m - remove S_OTHER symbol type, and touch include/config/*.h files correctly - fix file name and line number in lexer warnings - fix memory leak when EOF is encountered in quotation - resolve all shift/reduce conflicts of the parser - warn no new line at end of file - make 'source' statement more strict to take only string literal - rewrite the lexer and remove the keyword lookup table - convert to SPDX License Identifier - compile C files independently instead of including them from zconf.y - fix various warnings of gconfig - misc cleanups * tag 'kconfig-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (39 commits) kconfig: surround dbg_sym_flags with #ifdef DEBUG to fix gconf warning kconfig: split images.c out of qconf.cc/gconf.c to fix gconf warnings kconfig: add static qualifiers to fix gconf warnings kconfig: split the lexer out of zconf.y kconfig: split some C files out of zconf.y kconfig: convert to SPDX License Identifier kconfig: remove keyword lookup table entirely kconfig: update current_pos in the second lexer kconfig: switch to ASSIGN_VAL state in the second lexer kconfig: stop associating kconf_id with yylval kconfig: refactor end token rules kconfig: stop supporting '.' and '/' in unquoted words treewide: surround Kconfig file paths with double quotes microblaze: surround string default in Kconfig with double quotes kconfig: use T_WORD instead of T_VARIABLE for variables kconfig: use specific tokens instead of T_ASSIGN for assignments kconfig: refactor scanning and parsing "option" properties kconfig: use distinct tokens for type and default properties kconfig: remove redundant token defines kconfig: rename depends_list to comment_option_list ...
2018-12-22treewide: surround Kconfig file paths with double quotesMasahiro Yamada1-1/+1
The Kconfig lexer supports special characters such as '.' and '/' in the parameter context. In my understanding, the reason is just to support bare file paths in the source statement. I do not see a good reason to complicate Kconfig for the room of ambiguity. The majority of code already surrounds file paths with double quotes, and it makes sense since file paths are constant string literals. Make it treewide consistent now. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Ingo Molnar <mingo@kernel.org>