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-rw-r--r--Documentation/hwmon/index.rst1
-rw-r--r--Documentation/hwmon/sa67.rst41
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.
+======================= ========================================================
+