kernel/linux.git/Documentation/hwmon, branch v7.1.7

hwmon: (pmbus/max34440): add support adpm12250

2026-08-03T09:25:29+00:00

[ Upstream commit 479bfeba2eb62666cd4b981c8e721c61dcf36e7d ] ADPM12250 is a quarter brick DC/DC Power Module. It is a high power non-isolated converter capable of delivering regulated 12V with continuous power level of 2500W. Uses PMBus. Signed-off-by: Alexis Czezar Torreno Reviewed-by: Nuno Sá Link: https://lore.kernel.org/r/20260610-dev-adpm12250-v1-1-422760bb80da@analog.com Signed-off-by: Guenter Roeck Stable-dep-of: af01dab0c39a ("hwmon: (pmbus/max34440) block unsupported VIN and IIN limit registers") Signed-off-by: Sasha Levin

docs: hwmon: sy7636a: fix temperature sysfs attribute name

2026-05-14T22:48:57+00:00

The hwmon sysfs naming convention uses temp[1-*]_input for temperature channels. Documentation/hwmon/sy7636a-hwmon.rst currently documents temp0_input, while the driver uses the standard hwmon temperature channel interface. Update the documentation to use temp1_input. Signed-off-by: Chen-Shi-Hong Link: https://lore.kernel.org/r/20260514154108.1937-1-eric039eric@gmail.com Signed-off-by: Guenter Roeck

Documentation: hwmon: fix link to ideapad-laptop.c file

2026-04-30T17:56:49+00:00

The ideapad-laptop.c file now exists inside drivers/platform/x86/lenovo/ directory. Updating the GitHub link to the correct path. Signed-off-by: Ninad Naik Link: https://lore.kernel.org/r/20260417191411.713958-1-ninadnaik07@gmail.com Signed-off-by: Guenter Roeck

hwmon: add support for MCP998X

2026-04-11T07:02:13+00:00

Add driver for Microchip MCP998X/33 and MCP998XD/33D Multichannel Automotive Temperature Monitor Family. Signed-off-by: Victor Duicu Link: https://lore.kernel.org/r/20260403-add-mcp9982-hwmon-v12-2-b3bfb26ff136@microchip.com [groeck: Add missing break; to avoid build warning] Signed-off-by: Guenter Roeck

hwmon: pmbus: Add support for Sony APS-379

2026-04-10T15:26:36+00:00

Add pmbus support for Sony APS-379 power supplies. There are a few PMBUS commands that return data that is undocumented/invalid so these need to be rejected with -ENXIO. The READ_VOUT command returns data in linear11 format instead of linear16 so we need to workaround this. Signed-off-by: Chris Packham Link: https://lore.kernel.org/r/20260410012414.2818829-3-chris.packham@alliedtelesis.co.nz [groeck: Dropped empty line from documentation; added module name to Kconfig] Signed-off-by: Guenter Roeck

hwmon: (yogafan) various markup improvements

2026-04-07T13:53:03+00:00

There are several places in yogafan.rst where it appears that lines are meant to be presented on their own but instead they are strung together due to the lack of markups. Fix these issues by: - using bullets where needed - indenting continuation lines of bulleted items - using a table where appropriate - using a literal block where appropriate Fixes: c67c248ca406 ("hwmon: (yogafan) Add support for Lenovo Yoga/Legion fan monitoring") Signed-off-by: Randy Dunlap Link: https://lore.kernel.org/r/20260407052317.2097791-1-rdunlap@infradead.org Signed-off-by: Guenter Roeck

hwmon: (tmp102) add support for update interval

2026-04-03T18:10:05+00:00

Since the sensor supports different sampling intervals via bits CR0 and CR1 from the CONFIG register, add support in order for the conversion rate to be changed from user space. Default is 4 conv/sec. Signed-off-by: Flaviu Nistor Link: https://lore.kernel.org/r/20260403140654.10368-1-flaviu.nistor@gmail.com Signed-off-by: Guenter Roeck

hwmon: (yogafan) fix markup warning

2026-04-03T18:10:00+00:00

Add a blank line between the License and heading lines to prevent a documentation build warning: Documentation/hwmon/yogafan.rst:2: WARNING: Explicit markup ends without a blank line; unexpected unindent. [docutils] Fixes: c67c248ca406 ("hwmon: (yogafan) Add support for Lenovo Yoga/Legion fan monitoring") Signed-off-by: Randy Dunlap Link: https://lore.kernel.org/r/20260330214624.3781789-1-rdunlap@infradead.org Signed-off-by: Guenter Roeck

hwmon: (yogafan) Add support for Lenovo Yoga/Legion fan monitoring

2026-04-03T18:09:09+00:00

This driver provides fan speed monitoring for Lenovo Yoga, Legion, and IdeaPad laptops by interfacing with the Embedded Controller (EC) via ACPI. To address low-resolution sampling in Lenovo EC firmware, a Rate-Limited Lag (RLLag) filter is implemented. The filter ensures a consistent physical curve regardless of userspace polling frequency. Hardware identification is performed via DMI-based quirk tables, which map specific ACPI object paths and register widths (8-bit vs 16-bit) deterministically. Signed-off-by: Sergio Melas Link: https://lore.kernel.org/r/20260327221602.18832-1-sergiomelas@gmail.com [groeck: Dropped double empty line in Kconfig] Signed-off-by: Guenter Roeck

hwmon: (pmbus/isl68137) Add support for Renesas RAA228942 and RAA228943

2026-03-31T02:45:06+00:00

Add I2C device IDs for Renesas RAA228942 and RAA228943. At the Linux PMBus hwmon interface level currently supported by this driver, these devices are compatible with the existing 2-rail non-TC controllers, so devicetree will use fallback compatibles and no dedicated OF match entries are needed. Signed-off-by: Dawei Liu Link: https://lore.kernel.org/r/20260325090208.857-3-dawei.liu.jy@renesas.com Signed-off-by: Guenter Roeck