linux.git/Documentation/hwmon, branch v6.12

hwmon: Remove devm_hwmon_device_unregister() API function

2024-09-13T14:27:36+00:00

devm_hwmon_device_unregister() has no in-tree user, and its implementation
is wrong since it does not pass the to-be-removed hardware monitoring
device as parameter. I do not envision a valid use for it; drivers needing
it should not have called devm_hwmon_device_register_with_info() in the
first place. Remove it.

Reported-by: Matthew Sanders 
Closes: https://lore.kernel.org/linux-hwmon/488b3bdf870ea76c4b943dbe5fd15ac8113019dc.camel@kernel.org/
Signed-off-by: Guenter Roeck

hwmon: (ina2xx) Add support for current limits

2024-08-30T15:34:23+00:00

While the chips supported by this driver do not directly support current
limits, they do support setting shunt voltage limits. The shunt voltage
divided by the shunt resistor value is the current. On top of that,
calibration values are set such that in the shunt voltage register and
the current register report the same values. That means we can report and
configure current limits based on shunt voltage limits, and we can do so
with much better accuracy than by setting shunt voltage limits.

Reviewed-by: Tzung-Bi Shih 
Signed-off-by: Guenter Roeck

hwmon: Add sophgo SG2042 external hardware monitor support

2024-08-27T15:11:15+00:00

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 
Message-ID: 
Signed-off-by: Guenter Roeck

hwmon: (oxp-sensors) Add support for multiple new devices.

2024-08-27T15:10:33+00:00

Add support for the OrangePi NEO-01. It uses different registers for PWM
manual mode, set PWM, and read fan speed than previous devices. Valid PWM
input and duty cycle is 1-244, we scale this from 1-255 to maintain
compatibility with the existing interface.

Add OneXPlayer 2 series, OneXFly, and X1 series models. The 2/X1 series use
new registers for turbo button takeover and read fan speed. X1 has an Intel
variant so change the CPU detection at init to only check for the affected
devices. While at it, adjust formatting of some constants and reorder all
cases alphabetically for consistency. Rename OXP_OLD constants to OXP_MINI
for disambiguation. Update code comments for clarity.

Add support for AYANEO models 2S, AIR 1S, Flip series, GEEK 1S, and KUN.

Signed-off-by: Derek J. Clark 
Tested-by: Kevin Greenberg 
Tested-by: Joshua Tam 
Tested-by: Parth Menon 
Tested-by: Philip Müller 
Reported-by: kernel test robot 
Closes: https://lore.kernel.org/oe-kbuild-all/202408160329.TLNbIwRC-lkp@intel.com/
Message-ID: <20240822183525.27289-2-derekjohn.clark@gmail.com>
Signed-off-by: Guenter Roeck

hwmon: (lm92) Update documentation

2024-08-27T15:10:23+00:00

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 
Signed-off-by: Guenter Roeck

hwmon: (max1619) Convert to use regmap

2024-07-31T17:43:53+00:00

Use regmap for local caching, to hide register read/write address
differences, and for multi-byte operations. With this change,
the driver specific lock is no longer necessary.

While at it, check errors seen when initializing the chip and bail out
if chip initialization fails.

Reviewed-by: Tzung-Bi Shih 
Signed-off-by: Guenter Roeck

hwmon: (oxp-sensors) Fix typo in driver documentation

2024-07-31T17:43:52+00:00

RMP -> RPM

Signed-off-by: Cryolitia PukNgae 
Link: https://lore.kernel.org/r/20240726-typo-v1-1-3ca3f07f93e9@gmail.com
Signed-off-by: Guenter Roeck

Merge tag 'hwmon-for-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

2024-07-16T00:39:13+00:00

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
  ...

hwmon: Remove obsolete adm1021 and max6642 drivers

2024-07-14T18:48:43+00:00

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 
Signed-off-by: Guenter Roeck

hwmon: (amc6821) Add support for pwm1_mode attribute

2024-07-08T14:52:36+00:00

AMC6821 supports configuring if a fan is DC or PWM controlled.
Add support for the pwm1_mode attribute to make it runtime configurable.

Reviewed-by: Quentin Schulz 
Signed-off-by: Guenter Roeck