Lines Matching +full:pwm +full:- +full:0

1 ASPEED AST2400/AST2500 PWM and Fan Tacho controller device driver
3 The ASPEED PWM controller can support upto 8 PWM outputs. The ASPEED Fan Tacho
6 There can be upto 8 fans supported. Each fan can have one PWM output and
9 Required properties for pwm-tacho node:
10 - #address-cells : should be 1.
12 - #size-cells : should be 1.
14 - #cooling-cells: should be 2.
16 - reg : address and length of the register set for the device.
18 - pinctrl-names : a pinctrl state named "default" must be defined.
20 - pinctrl-0 : phandle referencing pin configuration of the PWM ports.
22 - compatible : should be "aspeed,ast2400-pwm-tacho" for AST2400 and
23 	       "aspeed,ast2500-pwm-tacho" for AST2500.
25 - clocks : phandle to clock provider with the clock number in the second cell
27 - resets : phandle to reset controller with the reset number in the second cell
32 representing a fan. If there are 8 fans each fan can have one PWM port and
34 For PWM port can be configured cooling-levels to create cooling device.
38 - reg : should specify PWM source port.
39 	integer value in the range 0 to 7 with 0 indicating PWM port A and
40 	7 indicating PWM port H.
42 - cooling-levels: PWM duty cycle values in a range from 0 to 255
45 - aspeed,fan-tach-ch : should specify the Fan tach input channel.
46                 integer value in the range 0 through 15, with 0 indicating
47 		Fan tach channel 0 and 15 indicating Fan tach channel 15.
53 	#address-cells = <1>;
54 	#size-cells = <1>;
55 	#cooling-cells = <2>;
56 	reg = <0x1E786000 0x1000>;
57 	compatible = "aspeed,ast2500-pwm-tacho";
60 	pinctrl-names = "default";
61 	pinctrl-0 = <&pinctrl_pwm0_default &pinctrl_pwm1_default>;
63 	fan@0 {
64 		reg = <0x00>;
65 		cooling-levels = /bits/ 8 <125 151 177 203 229 255>;
66 		aspeed,fan-tach-ch = /bits/ 8 <0x00>;
70 		reg = <0x01>;
71 		aspeed,fan-tach-ch = /bits/ 8 <0x01 0x02>;