docs: hwmon: Add an index file and rename docs to *.rst

Now that all files were converted to ReST format, rename them
and add an index.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

1 files changed, 43 insertions, 0 deletions

diff --git a/Documentation/hwmon/max31790.rst b/Documentation/hwmon/max31790.rst
new file mode 100644
index 000000000000..84c62a12ef3a
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+Kernel driver max31790
+======================
+
+Supported chips:
+
+  * Maxim MAX31790
+
+    Prefix: 'max31790'
+
+    Addresses scanned: -
+
+    Datasheet: http://pdfserv.maximintegrated.com/en/ds/MAX31790.pdf
+
+Author: Il Han <corone.il.han@gmail.com>
+
+
+Description
+-----------
+
+This driver implements support for the Maxim MAX31790 chip.
+
+The MAX31790 controls the speeds of up to six fans using six independent
+PWM outputs. The desired fan speeds (or PWM duty cycles) are written
+through the I2C interface. The outputs drive "4-wire" fans directly,
+or can be used to modulate the fan's power terminals using an external
+pass transistor.
+
+Tachometer inputs monitor fan tachometer logic outputs for precise (+/-1%)
+monitoring and control of fan RPM as well as detection of fan failure.
+Six pins are dedicated tachometer inputs. Any of the six PWM outputs can
+also be configured to serve as tachometer inputs.
+
+
+Sysfs entries
+-------------
+
+================== === =======================================================
+fan[1-12]_input    RO  fan tachometer speed in RPM
+fan[1-12]_fault    RO  fan experienced fault
+fan[1-6]_target    RW  desired fan speed in RPM
+pwm[1-6]_enable    RW  regulator mode, 0=disabled, 1=manual mode, 2=rpm mode
+pwm[1-6]           RW  fan target duty cycle (0-255)
+================== === =======================================================