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SMM665 and related chips are power controller/sequencer chips from
Summit Microelectronics. The company was acquired by Qualcomm in 2012,
and support for the chip series stopped.
The chips are long since gone from active use, making the driver
unsupportable and just consuming space and compile time. Remove it.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Hewlett-Packard (and some HP Compaq) business-class computers report
hardware monitoring information via WMI. This driver exposes that
information to hwmon.
Initial support is provided for temperature, fan speed, and intrusion
sensor types. Provisional support is provided for voltage and current
sensor types.
HP's WMI implementation permits many other types of numeric sensors.
Therefore, a debugfs interface is also provided to enumerate and
inspect all numeric sensors visible on the WMI side. This should
facilitate adding support for other sensor types in the future.
Tested on a HP Z420, a HP EliteOne 800 G1, and a HP Compaq Elite 8300
SFF.
Note that provisionally supported sensor types are untested and seem
to be rare-to-nonexistent in the wild, having been encountered
neither on test systems nor in ACPI dumps from the Linux Hardware
Database. They are included because their popularity in general makes
their presence on past or future HP systems plausible and because no
doubt exists as to how the sensors themselves would be represented in
WMI (alarm attributes will need to wait for hardware to be located).
A 2005 HP whitepaper gives the relevant sensor object MOF definition
and sensor value scaling calculation, and both this driver and the
official HP Performance Advisor utility comply with them (confirmed
in the latter case by reverse engineering).
Link: https://h20331.www2.hp.com/hpsub/downloads/cmi_whitepaper.pdf
Signed-off-by: James Seo <james@equiv.tech>
Link: https://lore.kernel.org/r/20230522115645.509701-1-james@equiv.tech
[groeck: Set error return value for intrusion writes to -EINVAL.
Always accept writes of 0 even if there was no intrusion. ]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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MAX31827 is a low-power temperature switch with I2C interface.
The device is a ±1°C accuracy from -40°C to +125°C
(12 bits) local temperature switch and sensor with I2C/SM-
Bus interface. The combination of small 6-bump wafer-lev-
el package (WLP) and high accuracy makes this temper-
ature sensor/switch ideal for a wide range of applications.
Signed-off-by: Daniel Matyas <daniel.matyas@analog.com>
Link: https://lore.kernel.org/r/20230524160131.14081-2-daniel.matyas@analog.com
[groeck: Improved define alignment, return -EINVAL after bad user input,
fixed up compatible statement]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Move the entry for the inspur-ipsps1 driver so that it no
longer appears in the hwmon docs TOC as a document relating
to the hwmon subsystem itself.
Signed-off-by: James Seo <james@equiv.tech>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Link: https://lore.kernel.org/r/20230504075752.1320967-2-james@equiv.tech
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Add documentation changes for acbel-fsg032 psu
Signed-off-by: Lakshmi Yadlapati <lakshmiy@us.ibm.com>
Link: https://lore.kernel.org/r/20230413132627.3444119-5-lakshmiy@us.ibm.com
[groeck: Fixed alphabetic order in index.rst]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Add driver for the StarFive JH71x0 temperature sensor. You
can enable/disable it and read temperature in milli Celcius
through sysfs.
Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Co-developed-by: Samin Guo <samin.guo@starfivetech.com>
Signed-off-by: Samin Guo <samin.guo@starfivetech.com>
Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
Link: https://lore.kernel.org/r/20230321022644.107027-3-hal.feng@starfivetech.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Pull documentation updates from Jonathan Corbet:
"It has been a moderately calm cycle for documentation; the significant
changes include:
- Some significant additions to the memory-management documentation
- Some improvements to navigation in the HTML-rendered docs
- More Spanish and Chinese translations
... and the usual set of typo fixes and such"
* tag 'docs-6.3' of git://git.lwn.net/linux: (68 commits)
Documentation/watchdog/hpwdt: Fix Format
Documentation/watchdog/hpwdt: Fix Reference
Documentation: core-api: padata: correct spelling
docs/mm: Physical Memory: correct spelling in reference to CONFIG_PAGE_EXTENSION
docs: Use HTML comments for the kernel-toc SPDX line
docs: Add more information to the HTML sidebar
Documentation: KVM: Update AMD memory encryption link
printk: Document that CONFIG_BOOT_PRINTK_DELAY required for boot_delay=
Documentation: userspace-api: correct spelling
Documentation: sparc: correct spelling
Documentation: driver-api: correct spelling
Documentation: admin-guide: correct spelling
docs: add workload-tracing document to admin-guide
docs/admin-guide/mm: remove useless markup
docs/mm: remove useless markup
docs/mm: Physical Memory: remove useless markup
docs/sp_SP: Add process magic-number translation
docs: ftrace: always use canonical ftrace path
Doc/damon: fix the data path error
dma-buf: Add "dma-buf" to title of documentation
...
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Add missing SPDX License Identifier for hwmon documentation index file.
Signed-off-by: SeongJae Park <sj@kernel.org>
Reviewed-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Link: https://lore.kernel.org/r/20230122213650.187710-5-sj@kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Add documentation for the NXP MC34VR500 PMIC.
Signed-off-by: Mario Kicherer <dev@kicherer.org>
Link: https://lore.kernel.org/r/20230118123019.3041303-3-dev@kicherer.org
[groeck: Added to index]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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The GXP SoC can support up to 16 fans through the interface provided by
the CPLD. The current support is limited to 8 fans. The fans speeds are
controlled via 8 different PWMs which can vary in value from 0-255. The
fans are also capable of reporting if they have failed to the CPLD which
in turn reports the status to the GXP SoC.
Signed-off-by: Nick Hawkins <nick.hawkins@hpe.com>
Link: https://lore.kernel.org/r/20230103203654.59322-2-nick.hawkins@hpe.com
[groeck: Improved alignment of defined, added missing include linux/bits.h]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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documents
Some documents that listed on subsystem-apis have 'Linux' or 'The Linux'
title prefixes. It's duplicated information, and makes finding the
document of interest with human eyes not easy. Remove the prefixes from
the titles.
Signed-off-by: SeongJae Park <sj@kernel.org>
Acked-by: Iwona Winiarska <iwona.winiarska@intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/r/20230122184834.181977-1-sj@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Sensors driver for OXP Handhelds from One-Netbook that expose fan reading
and control via hwmon sysfs.
As far as I could gather all OXP boards have the same DMI strings and
they can be told appart only by the boot cpu vendor (Intel/AMD).
Currently only AMD boards are supported since Intel have different EC
registers and values to read/write.
Fan control is provided via pwm interface in the range [0-255]. AMD
boards have [0-100] as range in the EC, the written value is scaled to
accommodate for that.
Signed-off-by: Joaquín Ignacio Aramendía <samsagax@gmail.com>
Link: https://lore.kernel.org/r/20221104140659.593608-1-samsagax@gmail.com
[groeck: Removed misleading comment about module_platform_driver()]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Add documentation for the Ampere(R)'s Altra(R) SMpro hwmon driver.
Signed-off-by: Thu Nguyen <thu@os.amperecomputing.com>
Signed-off-by: Quan Nguyen <quan@os.amperecomputing.com>
Link: https://lore.kernel.org/r/20220929094321.770125-3-quan@os.amperecomputing.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Add the pmbus driver for TEXAS tps546d24 Buck Converter.
The vout mode of tps546d24 supported relative data format,
which is not supported by the PMBus core.
Signed-off-by: Duke Du <dukedu83@gmail.com>
Link: https://lore.kernel.org/r/1662951668-9849-1-git-send-email-Duke.Du@quantatw.com
[groeck: Add __maybe_unused to tps546d24_of_match declaration]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Adding documentation for max31760 fan speed controller
Signed-off-by: Ibrahim Tilki <Ibrahim.Tilki@analog.com>
Link: https://lore.kernel.org/r/20220910171945.48088-3-Ibrahim.Tilki@analog.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Add description of emc2305 driver.
Signed-off-by: Michael Shych <michaelsh@nvidia.com>
Reviewed-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20220810171552.56417-4-michaelsh@nvidia.com
[groeck: Fixed htmldocs warnings]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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This driver utilises a WMI interface found in AMD 500 series ASUS boards,
to read EC registers. But it turned out that ASUS abandoned the
interface, as it disappeared from Intel 600 series boards. Additionally,
the WMI interface was incredibly slow. Therefore this driver was deprecated
in favor of the asus_ec_sensors driver, which supports more boards, more
sensors, and is faster.
Signed-off-by: Eugene Shalygin <eugene.shalygin@gmail.com>
Link: https://lore.kernel.org/r/20220720072016.102086-2-eugene.shalygin@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Add support for Analog Devices LT7182S Dual Channel 6A, 20V PolyPhase
Step-Down Silent Switcher with Digital Power System Management.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Add support for the temperatur sensor and the fan controller on the
Microchip LAN966x SoC. Apparently, an Analog Bits PVT sensor is used
which can measure temperature and process voltages. But only a forumlae
for the temperature sensor is known. Additionally, the SoC support a fan
tacho input as well as a PWM signal to control the fan.
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220401214032.3738095-5-michael@walle.cc
[groeck: Added missing reference in Documentation/hwmon/index.rst]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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controllers
Add support for devices XDPE152C4, XDPE12584.
Signed-off-by: Greg Schwendimann <Greg.Schwendimann@infineon.com>
Link: https://lore.kernel.org/r/5e6d50e9b28140158f339b0de343eea4@infineon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc and other driver updates from Greg KH:
"Here is the big set of char/misc and other small driver subsystem
updates for 5.18-rc1.
Included in here are merges from driver subsystems which contain:
- iio driver updates and new drivers
- fsi driver updates
- fpga driver updates
- habanalabs driver updates and support for new hardware
- soundwire driver updates and new drivers
- phy driver updates and new drivers
- coresight driver updates
- icc driver updates
Individual changes include:
- mei driver updates
- interconnect driver updates
- new PECI driver subsystem added
- vmci driver updates
- lots of tiny misc/char driver updates
All of these have been in linux-next for a while with no reported
problems"
* tag 'char-misc-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (556 commits)
firmware: google: Properly state IOMEM dependency
kgdbts: fix return value of __setup handler
firmware: sysfb: fix platform-device leak in error path
firmware: stratix10-svc: add missing callback parameter on RSU
arm64: dts: qcom: add non-secure domain property to fastrpc nodes
misc: fastrpc: Add dma handle implementation
misc: fastrpc: Add fdlist implementation
misc: fastrpc: Add helper function to get list and page
misc: fastrpc: Add support to secure memory map
dt-bindings: misc: add fastrpc domain vmid property
misc: fastrpc: check before loading process to the DSP
misc: fastrpc: add secure domain support
dt-bindings: misc: add property to support non-secure DSP
misc: fastrpc: Add support to get DSP capabilities
misc: fastrpc: add support for FASTRPC_IOCTL_MEM_MAP/UNMAP
misc: fastrpc: separate fastrpc device from channel context
dt-bindings: nvmem: brcm,nvram: add basic NVMEM cells
dt-bindings: nvmem: make "reg" property optional
nvmem: brcm_nvram: parse NVRAM content into NVMEM cells
nvmem: dt-bindings: Fix the error of dt-bindings check
...
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"New Drivers:
- Add support for Maxim MAX77714 PMIC
Removed Drivers:
- Remove support for ST-Ericsson AB8500 DebugFS
New Device Support:
- Add support for Silergy SY7636A to Simple MFD I2C
- Add support for MediaTek MT6366 PMIC to MT6358 IRQ
- Add support for Charger to Intel PMIC CRC
- Add support for Raptor Lake to Intel LPSS PCI
New Functionality:
- Add support for Reboot to Rockchip RK808
Fix-ups:
- Device Tree changes (includcing YAML conversion) for
silergy,sy7636a, maxim,max77843, google,cros-ec, maxim,max14577,
maxim,max77802, maxim,max77714, qcom,tcsr, qcom,spmi-pmic,
stericsson,ab8500, stericsson,db8500-prcmu,
samsung,exynos5433-lpass, mt6397, syscon, brcm,cru
- Visible to menuconfig; simple-mfd-i2c
- Clean-up or clarify code; max77686, intel_soc_pmic_crc
- Improve error handling; mc13xxx-core, stmfx, asic3
- Pass device information to child devices; iqs62x, intel-lpss-acpi
- Individually identify IRQ domains; intel_soc_pmic_core
- Remove superfluous code; dbx500-prcmu, exynos-lpass
- Staticify and constify; arizona-i2c
- Mark sometimes used data as __maybe_unused; atmel-flexcom
- Account for different ACPI tables on AOSP/Windows platforms; arizona-spi
- Use provided (platform) APIs; ab8500-core
- Trivial (whitespace, spelling); rohm-bd9576"
* tag 'mfd-next-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (50 commits)
dt-bindings: mfd: syscon: Add microchip,lan966x-cpu-syscon compatible
mfd: bd9576: fix typos in comments
mfd: Use platform_get_irq() to get the interrupt
mfd: db8500-prcmu: Remove unused inline function
mfd: arizona-spi: Add Android board ACPI table handling
mfd: arizona-spi: Split Windows ACPI init code into its own function
mfd: asic3: Add missing iounmap() on error asic3_mfd_probe
MAINTAINERS: Rectify entry for ROHM MULTIFUNCTION BD9571MWV-M PMIC DEVICE DRIVERS
mfd: intel-lpss: Provide an SSP type to the driver
dt-bindings: mfd: brcm,cru: Rename pinctrl node
dt-bindings: Add compatibles for undocumented trivial syscons
mfd: atmel-flexcom: Fix compilation warning
dt-bindings: mfd: Add compatible for the MediaTek MT6366 PMIC
dt-bindings: mfd: samsung,exynos5433-lpass: Convert to dtschema
mfd: exynos-lpass: Drop unneeded syscon.h include
mfd: intel-lpss: Add Intel Raptor Lake PCH-S PCI IDs
mfd: ab8500: Drop debugfs module
mfd: sta2x11: Use GFP_KERNEL instead of GFP_ATOMIC
mfd: ab8500: Rewrite bindings in YAML
mfd: qcom-spmi-pmic: Add pm8953 compatible
...
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Add support for Texas Instruments TMP464 and TMP468 temperature sensor
ICs.
TI's TMP464 is an I2C temperature sensor chip. This chip is similar
to TI's TMP421 chip, but with 16bit-wide registers (instead of
8bit-wide registers). The chip has one local sensor and four remote
sensors. TMP468 is similar to TMP464 but has one local and eight
remote sensors.
Originally-from: Agathe Porte <agathe.porte@nokia.com>
Cc: Agathe Porte <agathe.porte@nokia.com>
Cc: Krzysztof Adamski <krzysztof.adamski@nokia.com>
Tested-by: Agathe Porte <agathe.porte@nokia.com>
Link: https://lore.kernel.org/r/20220222223610.23098-2-linux@roeck-us.net
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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PLI1209BC is a Digital Supervisor from Vicor Corporation.
Signed-off-by: Marcello Sylvester Bauer <sylv@sylv.io>
Link: https://lore.kernel.org/r/4e016e66275bc46c90974aec18b150c874e64787.1645435888.git.sylv@sylv.io
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Signed-off-by: Eugene Shalygin <eugene.shalygin@gmail.com>
Link: https://lore.kernel.org/r/20220124015658.687309-3-eugene.shalygin@gmail.com
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Denis Pauk <pauk.denis@gmail.com>
[groeck: update index.rst, do not drop asus_wmi_ec_sensors.rst]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Add documentation for peci-cputemp driver that provides DTS thermal
readings for CPU packages and CPU cores, and peci-dimmtemp driver that
provides Temperature Sensor on DIMM readings.
Co-developed-by: Iwona Winiarska <iwona.winiarska@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com>
Link: https://lore.kernel.org/r/20220208153639.255278-13-iwona.winiarska@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This is a multi-function device to interface with the sy7636a
EPD PMIC chip from Silergy.
Signed-off-by: Alistair Francis <alistair@alistair23.me>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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- 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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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Document the SB-TSI sensor interface driver.
Signed-off-by: Kun Yi <kunyi@google.com>
Link: https://lore.kernel.org/r/20201211215427.3281681-3-kunyi@google.com
[groeck: Added SPDX license identifier, same as source]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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