dt-bindings: hwmon: Add optional regulator support to pwm-fan

lategoodbye · groeck · commit 29d013ad0401 · 2019-02-23T09:01:24.000-08:00
This adds an optional regulator support (e.g. switchable supply) to the
pwm fan binding.

Signed-off-by: Stefan Wahren &lt;stefan.wahren@i2se.com&gt;
Reviewed-by: Rob Herring &lt;robh@kernel.org&gt;
Signed-off-by: Guenter Roeck &lt;linux@roeck-us.net&gt;
diff --git a/Documentation/devicetree/bindings/hwmon/pwm-fan.txt b/Documentation/devicetree/bindings/hwmon/pwm-fan.txt
@@ -6,6 +6,9 @@ Required properties:
 - cooling-levels      : PWM duty cycle values in a range from 0 to 255
 			which correspond to thermal cooling states
 
+Optional properties:
+- fan-supply    : phandle to the regulator that provides power to the fan
+
 Example:
 	fan0: pwm-fan {
 		compatible = "pwm-fan";
