1Bindings for a fan connected to the PWM lines
2
3Required properties:
4- compatible	: "pwm-fan"
5- pwms		: the PWM that is used to control the PWM fan
6- cooling-levels      : PWM duty cycle values in a range from 0 to 255
7			which correspond to thermal cooling states
8
9Optional properties:
10- fan-supply    : phandle to the regulator that provides power to the fan
11
12Example:
13	fan0: pwm-fan {
14		compatible = "pwm-fan";
15		cooling-min-state = <0>;
16		cooling-max-state = <3>;
17		#cooling-cells = <2>;
18		pwms = <&pwm 0 10000 0>;
19		cooling-levels = <0 102 170 230>;
20	};
21
22	thermal-zones {
23		cpu_thermal: cpu-thermal {
24			     thermal-sensors = <&tmu 0>;
25			     polling-delay-passive = <0>;
26			     polling-delay = <0>;
27			     trips {
28					cpu_alert1: cpu-alert1 {
29						    temperature = <100000>; /* millicelsius */
30						    hysteresis = <2000>; /* millicelsius */
31						    type = "passive";
32					};
33			     };
34			     cooling-maps {
35					map0 {
36						    trip = <&cpu_alert1>;
37						    cooling-device = <&fan0 0 1>;
38					};
39			     };
40		};
41