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| author | Michael Walle <mwalle@kernel.org> | 2025-09-12 14:07:44 +0200 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2025-09-25 08:08:13 -0700 |
| commit | 443b39c82c322c9f3c38bea0389fe927ba00b3b4 (patch) | |
| tree | 8ad554e94397d847092b5cf563aeb2b279457755 /Documentation | |
| parent | 0f6eae86e626e0561d2f545a3183be2e12108410 (diff) | |
| download | linux-443b39c82c322c9f3c38bea0389fe927ba00b3b4.tar.gz | |
hwmon: add SMARC-sAM67 support
Add a new driver for the Kontron SMARC-sAM67 board management
controller. It has two voltage sensors and one temperature sensor.
Signed-off-by: Michael Walle <mwalle@kernel.org>
Link: https://lore.kernel.org/r/20250912120745.2295115-7-mwalle@kernel.org
[groeck: Added sa67 to index.rst]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/hwmon/index.rst | 1 | ||||
| -rw-r--r-- | Documentation/hwmon/sa67.rst | 41 |
2 files changed, 42 insertions, 0 deletions
diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst index 1803a43f6216b2..51a5bdf75b0865 100644 --- a/Documentation/hwmon/index.rst +++ b/Documentation/hwmon/index.rst @@ -214,6 +214,7 @@ Hardware Monitoring Kernel Drivers q54sj108a2 qnap-mcu-hwmon raspberrypi-hwmon + sa67 sbrmi sbtsi_temp sch5627 diff --git a/Documentation/hwmon/sa67.rst b/Documentation/hwmon/sa67.rst new file mode 100644 index 00000000000000..029c7c169b7fd2 --- /dev/null +++ b/Documentation/hwmon/sa67.rst @@ -0,0 +1,41 @@ +.. SPDX-License-Identifier: GPL-2.0-only + +Kernel driver sa67mcu +===================== + +Supported chips: + + * Kontron sa67mcu + + Prefix: 'sa67mcu' + + Datasheet: not available + +Authors: Michael Walle <mwalle@kernel.org> + +Description +----------- + +The sa67mcu is a board management controller which also exposes a hardware +monitoring controller. + +The controller has two voltage and one temperature sensor. The values are +hold in two 8 bit registers to form one 16 bit value. Reading the lower byte +will also capture the high byte to make the access atomic. The unit of the +volatge sensors are 1mV and the unit of the temperature sensor is 0.1degC. + +Sysfs entries +------------- + +The following attributes are supported. + +======================= ======================================================== +in0_label "VDDIN" +in0_input Measured VDDIN voltage. + +in1_label "VDD_RTC" +in1_input Measured VDD_RTC voltage. + +temp1_input MCU temperature. Roughly the board temperature. +======================= ======================================================== + |