* New drivers
- ISL28022 power monitor
- Nuvoton NCT7363Y
* Added support for new chips to existing drivers
- The tmp180 driver now supports NXP p3t1085, including its I3C mode
- The ina2xx driver now supports SY24655 and INA260
- The amc6821 driver now supports tsd,mule
* Other notable improvements
- The sht4x driver now supports the chip heater
- The pmbus/isl68137 driver now supports a voltage divider on Vout
- The cros_ec driver registers with the thermal framework
- The pmbus/ltc2978 driver now supports LTC7841
- The PMBus core now allow drivers to override WRITE_PROTECT
* Various other minor improvements and cleanups
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Merge tag 'hwmon-for-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hmon updates from Guenter Roeck:
"New drivers:
- ISL28022 power monitor
- Nuvoton NCT7363Y
Added support for new chips to existing drivers:
- The tmp180 driver now supports NXP p3t1085, including its I3C mode
- The ina2xx driver now supports SY24655 and INA260
- The amc6821 driver now supports tsd,mule
Other notable improvements:
- The sht4x driver now supports the chip heater
- The pmbus/isl68137 driver now supports a voltage divider on Vout
- The cros_ec driver registers with the thermal framework
- The pmbus/ltc2978 driver now supports LTC7841
- The PMBus core now allow drivers to override WRITE_PROTECT
Various other minor improvements and cleanups"
* tag 'hwmon-for-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (51 commits)
hwmon: (pmbus/isl68137) add support for voltage divider on Vout
dt-bindings: hwmon: isl68137: add bindings to support voltage dividers
hwmon: tmp108: fix I3C dependency
hwmon: (cros_ec) register thermal sensors to thermal framework
hwmon: (tmp108) Add support for I3C device
hwmon: (tmp108) Add helper function tmp108_common_probe() to prepare I3C support
hwmon: (acpi_power_meter) Fix fail to load module on platform without _PMD method
hwmon: (nct6775-core) Fix overflows seen when writing limit attributes
hwmon: (pwm-fan) Introduce start from stopped state handling
dt-bindings: hwmon: pwm-fan: Document start from stopped state properties
hwmon: (tmp108) Add NXP p3t1085 support
dt-bindings: hwmon: ti,tmp108: Add nxp,p3t1085 compatible string
hwmon: (sch5627, max31827) Fix typos in driver documentation
hwmon: (jc42) Drop of_match_ptr() protection
hwmon: (f71882fg) Fix grammar in fan speed trip points explanation
dt-bindings: hwmon: pmbus: add ti tps25990 support
hwmon: (pmbus/core) clear faults after setting smbalert mask
hwmon: (pmbus/core) allow drivers to override WRITE_PROTECT
hwmon: (pmbus) add documentation for existing flags
hwmon: (ina226) Add support for SY24655
...
It's possible to build a kernel with tmp108 built-in but i3c support
in a loadable module, but that results in a link failure:
x86_64-linux-ld: drivers/hwmon/tmp108.o: in function `p3t1085_i3c_probe':
tmp108.c:(.text+0x5f9): undefined reference to `i3cdev_to_dev'
Add a Kconfig dependency to ensure only the working configurations
are allowed.
Fixes: c40655e331 ("hwmon: (tmp108) Add support for I3C device")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Message-ID: <20241113175615.2442851-1-arnd@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add support for I3C device in the tmp108 driver to handle the P3T1085
sensor. Register the I3C device driver to enable I3C functionality for the
sensor.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Message-ID: <20241112-p3t1085-v4-2-a1334314b1e6@nxp.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add compatible string 'nxp,p3t1085' since p3t1085's register layout is the
same as tmp108.
The p3t1085 supports I3C interface.
Update document tmp108.rst and Kconfig's help context.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Message-ID: <20241111-p3t1085-v3-2-bff511550aad@nxp.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
SY24655: Support for current and voltage detection as well as
power calculation.
Signed-off-by: Wenliang Yan <wenliang202407@163.com>
Message-ID: <20241106150547.2538-1-wenliang202407@163.com>
[groeck: Changed order of compatible entries;
dropped spurious extra return statement in is_visible();
fixed code problems]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
The NCT7363Y is a fan controller which provides up to 16
independent FAN input monitors. It can report each FAN input count
values. The NCT7363Y also provides up to 16 independent PWM
outputs. Each PWM can output specific PWM signal by manual mode to
control the FAN duty outside.
Signed-off-by: Ban Feng <kcfeng0@nuvoton.com>
Message-ID: <20241022052905.4062682-3-kcfeng0@nuvoton.com>
[groeck: Dropped unnecessary variable initialization, and , after { }]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Driver for Renesas ISL28022 power monitor with I2C interface.
The device monitors voltage, current via shunt resistor
and calculated power.
Signed-off-by: Carsten Spieß <mail@carsten-spiess.de>
Signed-off-by: Yikai Tsai <yikai.tsai.wiwynn@gmail.com>
Message-ID: <20241002081133.13123-3-yikai.tsai.wiwynn@gmail.com>
[groeck: Fixed alignment issues, dropped noise at end of probe]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
INA260 is similar to other chips of the series, except it has an internal
shunt resistor. The calibration register is therefore not present. Also,
the current register address was changed, though that does not matter for
the driver since the shunt voltage register (which is now the current
register) value is already used to read the current.
Cc: Loic Guegan <loic.guegan@mailbox.org>
Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
The embedded controller code is mainly used on x86 laptops and cannot
work without PC style I/O port access.
Make this a user-visible configuration option that is default enabled
on x86 but otherwise disabled, and that can never be enabled unless
CONFIG_HAS_IOPORT is also available.
The empty stubs in internal.h help ignore the EC code in configurations
that don't support it. In order to see those stubs, the sbshc code also
has to include this header and drop duplicate declarations.
All the direct callers of ec_read/ec_write already had an x86
dependency and now also need to depend on APCI_EC.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patch.msgid.link/20241011061948.3211423-1-arnd@kernel.org
[ rjw: Subject edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This driver requires REGMAP_I2C to be selected in order to get access to
regmap_config, regmap_bus, and devm_regmap_init_i2c.
Add the missing dependency.
Fixes: 021730acbc ("hwmon: (max1668) Convert to use regmap")
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Message-ID: <20241002-hwmon-select-regmap-v1-4-548d03268934@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This driver requires REGMAP_I2C to be selected in order to get access to
regmap_config and devm_regmap_init_i2c. Add the missing dependency.
Fixes: 2b9ea4262a ("hwmon: Add driver for ltc2991")
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Message-ID: <20241002-hwmon-select-regmap-v1-3-548d03268934@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This driver requires REGMAP_I2C to be selected in order to get access to
regmap_config and devm_regmap_init_i2c. Add the missing dependency.
Fixes: ef67959c42 ("hwmon: (adt7470) Convert to use regmap")
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Message-ID: <20241002-hwmon-select-regmap-v1-2-548d03268934@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This driver requires REGMAP_I2C to be selected in order to get access to
regmap_config and devm_regmap_init_i2c. Add the missing dependency.
Fixes: df885d912f ("hwmon: (adm9240) Convert to regmap")
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Message-ID: <20241002-hwmon-select-regmap-v1-1-548d03268934@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This driver requires REGMAP_I2C to be selected in order to get access to
regmap_config and devm_regmap_init_i2c. Add the missing dependency.
Fixes: 07830d9ab3 ("hwmon: add initial NXP MC34VR500 PMIC monitoring support")
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Message-ID: <20241002-mc34vr500-select-regmap_i2c-v1-1-a01875d0a2e5@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
0-day reports:
drivers/hwmon/tmp513.c:162:21: error:
variable 'tmp51x_regmap_config' has initializer but incomplete type
162 | static const struct regmap_config tmp51x_regmap_config = {
| ^
struct regmap_config is only available if REGMAP is enabled.
Add the missing Kconfig dependency to fix the problem.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202410020246.2cTDDx0X-lkp@intel.com/
Fixes: 59dfa75e5d ("hwmon: Add driver for Texas Instruments TMP512/513 sensor chips.")
Cc: Eric Tremblay <etremblay@distech-controls.com>
Reviewed-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
SG2042 use an external MCU to provide basic hardware information
and thermal sensors.
Add driver support for the onboard MCU of SG2042.
Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
Message-ID: <IA1PR20MB49536C786048D1E676BB9C20BB822@IA1PR20MB4953.namprd20.prod.outlook.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Some of the newer Microsoft Surface devices (such as the Surface Book
3 and Pro 9) have thermal sensors connected via the Surface Aggregator
Module (the embedded controller on those devices). Add a basic driver
to read out the temperature values of those sensors.
The EC can have up to 16 thermal sensors connected via a single
sub-device, each providing temperature readings and a label string.
Link: https://github.com/linux-surface/surface-aggregator-module/issues/59
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Co-developed-by: Ivor Wanders <ivor@iwanders.net>
Signed-off-by: Ivor Wanders <ivor@iwanders.net>
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Message-ID: <20240811001503.753728-1-luzmaximilian@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Update datasheet references. Replace misleading 'force parameter needed'
with 'must be instantiated explicitly'. Explain the reason for the missing
auto-detection. Mention all supported chips in Kconfig.
Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Use regmap for local caching and for multi-byte operations to be able
to use regmap API functions and to reduce the need for locking in the
driver.
Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Use regmap to replace local caching and to be able to use regmap API
functions.
No functional change.
Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* Obsolete driver removals
- Removed obsolete adm1021 and max6642 drivers
* New drivers
- MPS MP2891
- MPS MP2993
- MPS MP9941
- MPS MP5920
- SPD5118 (Temperature Sensor and EEPROM)
* Added device support to existing drivers
- g762: G761
- dell-smm: Dell OptiPlex 7060
- asus-ec-sensors: ProArt X670E-CREATOR WIFI
- corsair-psu: HX1200i Series 2023 psu
- nzxt-smart2: Additional USB IS for NZXT RGB & Fan Controller
* Notable enhancements and fixes
- Removed use of i2c_match_id()
- Constified struct regmap_config where feasible
- Cleaned up amc6821 driver, and converted to use regmap and with_info API
- Converted max6639 driver to use with_info API; added support for
additional sysfs attributes
- Fixed various sysfs attribute underflows
- Added PEC support to hwmon core, and use in lm90 and max31827 drivers
* Various other minor fixes and improvements
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Merge tag 'hwmon-for-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
"Obsolete driver removals:
- Removed obsolete adm1021 and max6642 drivers
New drivers:
- MPS MP2891, MP2993, MP9941, and MP5920
- SPD5118 (Temperature Sensor and EEPROM)
Added device support to existing drivers:
- g762: G761
- dell-smm: Dell OptiPlex 7060
- asus-ec-sensors: ProArt X670E-CREATOR WIFI
- corsair-psu: HX1200i Series 2023 psu
- nzxt-smart2: Additional USB IS for NZXT RGB & Fan Controller
Notable enhancements and fixes:
- Removed use of i2c_match_id()
- Constified struct regmap_config where feasible
- Cleaned up amc6821 driver, and converted to use regmap and
with_info API
- Converted max6639 driver to use with_info API; added support for
additional sysfs attributes
- Fixed various sysfs attribute underflows
- Added PEC support to hwmon core, and use in lm90 and max31827
drivers
And various other minor fixes and improvements"
* tag 'hwmon-for-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (103 commits)
hwmon: (max6697) Fix swapped temp{1,8} critical alarms
hwmon: (max6697) Fix underflow when writing limit attributes
hwmon: Remove obsolete adm1021 and max6642 drivers
hwmon: (pmbus/ltc4286) Drop unused i2c device ids
hwmon: (g762) Initialize fans after configuring clock
hwmon: (amc6821) Add support for pwm1_mode attribute
hwmon: (amc6821) Convert to with_info API
hwmon: (amc6821) Convert to use regmap
hwmon: (amc6821) Drop unnecessary enum chips
hwmon: (amc6821) Use BIT() and GENMASK()
hwmon: (amc6821) Use tabs for column alignment in defines
hwmon: (amc6821) Reorder include files, drop unnecessary ones
hwmon: (amc6821) Add support for fan1_target and pwm1_enable mode 4
hwmon: (amc6821) Rename fan1_div to fan1_pulses
hwmon: (amc6821) Make reading and writing fan speed limits consistent
hwmon: (amc6821) Stop accepting invalid pwm values
hwmon: (w83627ehf) Fix underflows seen when writing limit attributes
hwmon: (nct6775-core) Fix underflows seen when writing limit attributes
hwmon: (lm95234) Fix underflows seen when writing limit attributes
hwmon: (adc128d818) Fix underflows seen when writing limit attributes
...
ADM1021, MAX6642, and compatible chips are supported by the lm90 driver.
Remove the obsolete stand-alone drivers to reduce maintenance overhead.
Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Use regmap for register accesses and caching.
While at it, use sysfs_emit() instead of sprintf() to write sysfs
attribute data, and remove spurious debug messages which would only
be seen as result of a bug in the code. Also make sure that error
codes are propagated and not replaced with -EIO.
While at it, introduce rounding of written temperature values and for
internal calculations to reduce deviation from written values and as
much as possible.
No functional change intended except for differences introduced by
rounding.
Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
With SPD5118 chip detection for the most part handled by the i2c-smbus
core using DMI information, the spd5118 driver no longer needs to
auto-detect spd5118 compliant chips.
Auto-detection by the driver is still needed on systems with no DMI support
or on systems with more than eight DIMMs and can not be removed entirely.
However, it affects boot time and introduces the risk of mis-identifying
chips. Add configuration option to be able to disable it on systems where
chip detection is handled outside the driver.
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Tested-by: Armin Wolf <W_Armin@gmx.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add support for SPD5118 (Jedec JESD300) compliant temperature
sensors. Such sensors are typically found on DDR5 memory modules.
Cc: René Rebe <rene@exactcode.de>
Cc: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Tested-by: Thomas Weißschuh <linux@weissschuh.net>
Tested-by: Stephen Horvath <s.horvath@outlook.com.au>
Tested-by: Armin Wolf <W_Armin@gmx.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
The ChromeOS Embedded Controller exposes fan speed and temperature
readings.
Expose this data through the hwmon subsystem.
The driver is designed to be probed via the cros_ec mfd device.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20240529-cros_ec-hwmon-v4-2-5cdf0c5db50a@weissschuh.net
[tzungbi: Fixed typo in MAINTAINERS: "chros_ec_hwmon" -> "cros_ec_hwmon"]
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
This addition adds in the ability for the system to scan
the EC chip in the Lenovo ThinkStation systems to get the
current fan RPM speeds the Maximum speed value for each
fan also provides the CPU, DIMM other thermal statuses
Signed-off-by: David Ober <dober6023@gmail.com>
Link: https://lore.kernel.org/r/20240328121250.331146-1-dober6023@gmail.com
[groeck: Dropped pointless case statements]
[Colin King: Fixed spelling error accesssible -> accessible]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Convert the module to be property provider agnostic and allow
it to be used on non-OF platforms.
Add mod_devicetable.h include.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20240404191323.3547465-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
In a future patch HAS_IOPORT=n will disable inb()/outb() and friends at
compile time. We thus need to add HAS_IOPORT as dependency for those
drivers using them.
Acked-by: Guenter Roeck <linux@roeck-us.net>
Co-developed-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Link: https://lore.kernel.org/r/20240404124700.3807842-2-schnelle@linux.ibm.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
The driver support two functions: PWM and Tachometer. The PWM feature can
handle up to 16 output ports, while the Tachometer can monitor to up to 16
input ports as well. This driver implements them by exposing two kernel
subsystems: PWM and HWMON. The PWM subsystem can be utilized alongside
existing drivers for controlling elements such as fans (pwm-fan.c),
beepers (pwm-beeper.c) and so on. Through the HWMON subsystem, the driver
provides sysfs interfaces for fan.
Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com>
Link: https://lore.kernel.org/r/20240221104025.1306227-4-billy_tsai@aspeedtech.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This driver exposes hardware sensors of the ASUS ROG RYUJIN II 360
all-in-one CPU liquid cooler, which communicates through a proprietary
USB HID protocol. Report offsets were initially discovered in [1] by
Florian Freudiger.
Available sensors are pump, internal and external
(controller) fan speed in RPM, their duties in PWM, as well as
coolant temperature.
Attaching external fans to the controller is optional and allows them
to be controlled from the device. If not connected, the fan-related
sensors will report zeroes. The controller is a separate hardware unit
that comes bundled with the AIO and connects to it to allow fan control.
The addressable LCD screen is not supported in this
driver and should be controlled through userspace tools.
[1]: https://github.com/liquidctl/liquidctl/pull/653
Tested-by: Florian Freudiger <florian.freudiger@proton.me>
Signed-off-by: Aleksa Savic <savicaleksa83@gmail.com>
Link: https://lore.kernel.org/r/20240108094453.22986-1-savicaleksa83@gmail.com
[groeck: Add HID dependency]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This driver enables hardware monitoring support for NZXT Kraken
X53/X63/X73 and Z53/Z63/Z73 all-in-one CPU liquid coolers.
All models expose liquid temperature and pump speed (in RPM), as well as
PWM control (natively only through a temp-PWM curve, but the driver also
emulates fixed PWM control on top of that). The Z-series models
additionally expose the speed and duty of an optionally connected fan,
with the same PWM control capabilities.
Pump and fan duty control mode can be set through pwm[1-2]_enable,
where 1 is for the manual control mode and 2 is for the liquid temp
to PWM curve mode. Writing a 0 disables control of the channel through
the driver after setting its duty to 100%. As it is not possible to query
the device for the active mode, the driver keeps track of it.
The temperature of the curves relates to the fixed [20-59] C range, per
device limitations, and correlating to the detected liquid temperature.
Only PWM values (ranging from 0-255) can be set.
The addressable RGB LEDs and LCD screen, included only on Z-series models,
are not supported in this driver.
Co-developed-by: Jonas Malaco <jonas@protocubo.io>
Signed-off-by: Jonas Malaco <jonas@protocubo.io>
Co-developed-by: Yury Zhuravlev <stalkerg@gmail.com>
Signed-off-by: Yury Zhuravlev <stalkerg@gmail.com>
Signed-off-by: Aleksa Savic <savicaleksa83@gmail.com>
Link: https://lore.kernel.org/r/20240129111932.368232-1-savicaleksa83@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
The Amphenol ChipCap 2 is a capacitive polymer humidity and temperature
sensor with an integrated EEPROM and minimum/maximum humidity alarms.
All device variants offer an I2C interface and depending on the part
number, two different output modes:
- CC2D: digital output
- CC2A: analog (PDM) output
This driver adds support for the digital variant (CC2D part numbers),
which includes the following part numbers:
- non-sleep measurement mode (CC2D23, CC2D25, CC2D33, CC2D35)
- sleep measurement mode (CC2D23S, CC2D25S, CC2D33S, CC2D35S)
The Chipcap 2 EEPROM can be accessed to configure a series of parameters
like the minimum/maximum humidity alarm threshold and hysteresis. The
EEPROM is only accessible in the command window after a power-on reset.
The default window lasts 10 ms if no Start_CM command is sent. After the
command window is finished (either after the mentioned timeout of after
a Start_NOM command is sent), the device enters the normal operation
mode and makes a first measurement automatically.
Unfortunately, the device does not provide any hardware or software
reset and therefore the driver must trigger power cycles to enter the
command mode. A dedicated, external regulator is required for that.
This driver keeps the device off until a measurement or access to the
EEPROM is required, making use of the first automatic measurement to
avoid different code paths for sleep and non-sleep devices.
The minimum and maximum humidity alarms are configured with two
registers per alarm: one stores the alarm threshold and the other one
keeps the value that turns off the alarm. The alarm signals are only
updated when a measurement is carried out.
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Link: https://lore.kernel.org/r/20240130-topic-chipcap2-v6-5-260bea05cf9b@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Adds a driver that provides read only access to the fan speed for Microsoft
Surface Pro devices. The fan speed is always regulated by the EC and cannot
be influenced directly.
Signed-off-by: Ivor Wanders <ivor@iwanders.net>
Link: https://github.com/linux-surface/kernel/pull/144
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20240131005856.10180-2-ivor@iwanders.net
[groeck:
- Declare surface_fan_hwmon_is_visible() static
- Add dependency on SURFACE_AGGREGATOR_BUS
]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
The LTC4282 hot swap controller allows a board to be safely inserted and
removed from a live backplane. Using one or more external N-channel pass
transistors, board supply voltage and inrush current are ramped up at an
adjustable rate. An I2C interface and onboard ADC allows for monitoring
of board current, voltage, power, energy and fault status.
Signed-off-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20240129-b4-ltc4282-support-v4-3-fe75798164cc@analog.com
[groeck: clamp value range in ltc4282_write_voltage_byte_cached()]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This driver exposes hardware sensors of the Gigabyte AORUS Waterforce
all-in-one CPU liquid coolers, which communicate through a proprietary
USB HID protocol. Report offsets were initially discovered in [1] and
confirmed by me on a Waterforce X240 by observing the sent reports from
the official software.
Available sensors are pump and fan speed in RPM, as well as coolant
temperature. Also available through debugfs is the firmware version.
Attaching a fan is optional and allows it to be controlled from the
device. If it's not connected, the fan-related sensors will report
zeroes.
The addressable RGB LEDs and LCD screen are not supported in this
driver and should be controlled through userspace tools.
[1]: https://github.com/liquidctl/liquidctl/issues/167
Signed-off-by: Aleksa Savic <savicaleksa83@gmail.com>
Link: https://lore.kernel.org/r/20231207122402.107032-1-savicaleksa83@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Some Dell machines like the Dell Optiplex 7000 do not support
the legacy SMM interface, but instead expect all SMM calls
to be issued over a special WMI interface.
Add support for this interface so users can control the fans
on those machines.
Tested-by: <serverror@serverror.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20231123004820.50635-8-W_Armin@gmx.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add support for LTC2991 Octal I2C Voltage, Current, and Temperature
Monitor.
The LTC2991 is used to monitor system temperatures, voltages and
currents. Through the I2C serial interface, the eight monitors can
individually measure supply voltages and can be paired for
differential measurements of current sense resistors or temperature
sensing transistors. Additional measurements include internal
temperature and internal VCC.
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Link: https://lore.kernel.org/r/20231026103413.27800-2-antoniu.miclaus@analog.com
[groeck: Fixed up documentation warning]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
The two drivers compile fine on arm64, powerpc, m68k and s390. So make
it possible to enable the drivers in the presence of COMPILE_TEST.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230918085951.1234172-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Accessing virtual registers is very inefficient, so pwm map values
should be cached when possible, else userspace could effectively do
a DOS attack by reading pwm map values in a while loop.
Use the regmap cache to cache those values.
Tested on a Fujitsu Esprimo P720.
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20230907052639.16491-4-W_Armin@gmx.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
POWER-Z is a series of devices to monitor power characteristics of
USB-C connections and display those on a on-device display.
Some of the devices, notably KM002C and KM003C, contain an additional
port which exposes the measurements via USB.
This is a driver for this monitor port.
It was developed and tested with the KM003C.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20230902-powerz-v4-1-7ec2c1440687@weissschuh.net
[groeck:
Release urb after hwmon registration error;
Move priv->status initialization to correct place before reinit_completion
]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add base support for Renesas HS3001 temperature
and humidity sensors and its compatibles HS3002,
HS3003 and HS3004.
The sensor has a fix I2C address 0x44. The resolution
is fixed to 14bit (ref. Missing feature).
Missing feature:
- Accessing non-volatile memory: Custom board has no
possibility to control voltage supply of sensor. Thus,
we cannot send the necessary control commands within
the first 10ms after power-on.
Signed-off-by: Andre Werner <andre.werner@systec-electronic.com>
Link: https://lore.kernel.org/r/20230725042207.22310-2-andre.werner@systec-electronic.com
[groeck: Cosmetic documentation fixup; added documentation to index;
replaced probe_new with probe dropped unused variable]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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>
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>
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>
Add support for compatible AHT20 temperature/humidity sensor. The only
difference between the two is that AHT20 has additional crc8 byte.
It seems like AHT15 is also supported by the driver but it wasn't
verified and tested yet.
Tested on Beaglebone black rev C.
Signed-off-by: Kirill Yatsenko <kiriyatsenko@gmail.com>
Link: https://lore.kernel.org/r/20230524201912.815993-1-kiriyatsenko@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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>
