kernel/linux.git/Documentation/hwmon, branch v6.12.103

hwmon: (ina2xx) Add support for INA234

2026-08-09T18:23:05+00:00

[ Upstream commit 88a928eebccdc5445d874ddcbf1683b76c9f1431 ] INA234 is register compatible to INA226 (excepting manufacturer and die or device id registers) but has different scaling. Signed-off-by: Ian Ray Reviewed-by: Bence Csókás # v2 Tested-by: Jens Almer Tested-by: Jonas Rebmann Link: https://lore.kernel.org/r/20260220112024.97446-4-ian.ray@gehealthcare.com Signed-off-by: Guenter Roeck Stable-dep-of: e6c80061ca23 ("hwmon: (ina2xx) Fix various overflow issues") Signed-off-by: Sasha Levin

hwmon: (ina2xx) Make it easier to add more devices

2026-08-09T18:23:04+00:00

[ Upstream commit f6e14b5bcabf4ee97a2d535c3c2d7e72c8da4c15 ] * Make sysfs entries documentation easier to maintain. * Use multi-line enum. * Correct "has_power_average" comment. Create a new "has_update_interval" member for chips which support averaging. Signed-off-by: Ian Ray Reviewed-by: Bence Csókás # v2 Tested-by: Jens Almer Link: https://lore.kernel.org/r/20260220112024.97446-3-ian.ray@gehealthcare.com Signed-off-by: Guenter Roeck Stable-dep-of: e6c80061ca23 ("hwmon: (ina2xx) Fix various overflow issues") Signed-off-by: Sasha Levin

hwmon: (ina226) Add support for SY24655

2026-08-09T18:23:04+00:00

[ Upstream commit 52172ad87a22ed6e687ca678da21d3c949bc89a1 ] SY24655: Support for current and voltage detection as well as power calculation. Signed-off-by: Wenliang Yan 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 Stable-dep-of: e6c80061ca23 ("hwmon: (ina2xx) Fix various overflow issues") Signed-off-by: Sasha Levin

hwmon: (ina2xx) Add support for INA260

2026-08-09T18:23:04+00:00

[ Upstream commit 70fb84a109c639637f0636281dbdb21ed8ffb000 ] 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 Reviewed-by: Tzung-Bi Shih Signed-off-by: Guenter Roeck Stable-dep-of: e6c80061ca23 ("hwmon: (ina2xx) Fix various overflow issues") Signed-off-by: Sasha Levin

hwmon: (peci/cputemp) Fix crit_hyst returning delta instead of absolute temperature

2026-04-02T11:09:43+00:00

commit 0adc752b4f7d82af7bd14f7cad3091b3b5d702ba upstream. The hwmon sysfs ABI expects tempN_crit_hyst to report the temperature at which the critical condition clears, not the hysteresis delta from the critical limit. The peci cputemp driver currently returns tjmax - tcontrol for crit_hyst_type, which is the hysteresis margin rather than the corresponding absolute temperature. Return tcontrol directly, and update the documentation accordingly. Fixes: bf3608f338e9 ("hwmon: peci: Add cputemp driver") Cc: stable@vger.kernel.org Signed-off-by: Sanman Pradhan Link: https://lore.kernel.org/r/20260323002352.93417-2-sanman.pradhan@hpe.com Signed-off-by: Guenter Roeck Signed-off-by: Greg Kroah-Hartman

hwmon: (adm1177) fix sysfs ABI violation and current unit conversion

2026-04-02T11:09:40+00:00

[ Upstream commit bf08749a6abb6d1959bfdc0edc32c640df407558 ] The adm1177 driver exposes the current alert threshold through hwmon_curr_max_alarm. This violates the hwmon sysfs ABI, where *_alarm attributes are read-only status flags and writable thresholds must use currN_max. The driver also stores the threshold internally in microamps, while currN_max is defined in milliamps. Convert the threshold accordingly on both the read and write paths. Widen the cached threshold and related calculations to 64 bits so that small shunt resistor values do not cause truncation or overflow. Also use 64-bit arithmetic for the mA/uA conversions, clamp writes to the range the hardware can represent, and propagate failures from adm1177_write_alert_thr() instead of silently ignoring them. Update the hwmon documentation to reflect the attribute rename and the correct units returned by the driver. Fixes: 09b08ac9e8d5 ("hwmon: (adm1177) Add ADM1177 Hot Swap Controller and Digital Power Monitor driver") Signed-off-by: Sanman Pradhan Acked-by: Nuno Sá Link: https://lore.kernel.org/r/20260325051246.28262-1-sanman.pradhan@hpe.com Signed-off-by: Guenter Roeck Signed-off-by: Sasha Levin

hwmon: (aht10) Add support for dht20

2026-03-13T16:20:37+00:00

[ Upstream commit 3eaf1b631506e8de2cb37c278d5bc042521e82c1 ] Add support for dht20 temperature and humidity sensor from Aosong. Modify aht10 driver to handle different init command for dht20 sensor by adding init_cmd entry in the driver data. dht20 sensor is compatible with aht10 hwmon driver with this change. Tested on TI am62x SK board with dht20 sensor connected at i2c-2 port. Signed-off-by: Akhilesh Patil Link: https://lore.kernel.org/r/2025112-94320-906858@bhairav-test.ee.iitb.ac.in Signed-off-by: Guenter Roeck Stable-dep-of: b7497b5a99f5 ("hwmon: (aht10) Fix initialization commands for AHT20") Signed-off-by: Sasha Levin

hwmon: pmbus: mpq8785: Add support for MPM82504

2026-03-04T12:19:58+00:00

[ Upstream commit c27291468eb957b11dc81cd35fad36faf0861c07 ] Add support for the Monolithic Power Systems MPM82504 digital voltage regulator. MPM82504 uses PMBus direct format for voltage output. Tested with device tree based matching. Signed-off-by: Pawel Dembicki Link: https://lore.kernel.org/r/20250511035701.2607947-5-paweldembicki@gmail.com Signed-off-by: Guenter Roeck Stable-dep-of: 9e33c1dba224 ("hwmon: (pmbus/mpq8785) fix VOUT_MODE mismatch during identification") Signed-off-by: Sasha Levin

docs: hwmon: fix link to g762 devicetree binding

2025-12-18T12:55:20+00:00

[ Upstream commit 08bfcf4ff9d39228150a757803fc02dffce84ab0 ] The devicetree binding for g762 was converted to YAML to match vendor prefix conventions. Update the reference accordingly. Signed-off-by: Kathara Sasikumar Link: https://lore.kernel.org/r/20251205215835.783273-1-katharasasikumar007@gmail.com Fixes: 3d8e25372417 ("dt-bindings: hwmon: g762: Convert to yaml schema") Signed-off-by: Guenter Roeck Signed-off-by: Sasha Levin

hwmon: (dell-smm) Increment the number of fans

2025-05-29T09:02:22+00:00

[ Upstream commit dbcfcb239b3b452ef8782842c36fb17dd1b9092f ] Some Alienware laptops that support the SMM interface, may have up to 4 fans. Tested on an Alienware x15 r1. Signed-off-by: Kurt Borja Link: https://lore.kernel.org/r/20250304055249.51940-2-kuurtb@gmail.com Signed-off-by: Guenter Roeck Signed-off-by: Sasha Levin