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
9Example:
10	fan0: pwm-fan {
11		compatible = "pwm-fan";
12		cooling-min-state = <0>;
13		cooling-max-state = <3>;
14		#cooling-cells = <2>;
15		pwms = <&pwm 0 10000 0>;
16		cooling-levels = <0 102 170 230>;
17	};
18
19	thermal-zones {
20		cpu_thermal: cpu-thermal {
21			     thermal-sensors = <&tmu 0>;
22			     polling-delay-passive = <0>;
23			     polling-delay = <0>;
24			     trips {
25					cpu_alert1: cpu-alert1 {
26						    temperature = <100000>; /* millicelsius */
27						    hysteresis = <2000>; /* millicelsius */
28						    type = "passive";
29					};
30			     };
31			     cooling-maps {
32					map0 {
33						    trip = <&cpu_alert1>;
34						    cooling-device = <&fan0 0 1>;
35					};
36			     };
37		};
38