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Documentation / devicetree / bindings / pwm / vt8500-pwm.txt




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Based on kernel version 3.9. Page generated on 2013-05-02 23:01 EST.

1	VIA/Wondermedia VT8500/WM8xxx series SoC PWM controller
2	
3	Required properties:
4	- compatible: should be "via,vt8500-pwm"
5	- reg: physical base address and length of the controller's registers
6	- #pwm-cells: Should be 3. Number of cells being used to specify PWM property.
7	  First cell specifies the per-chip index of the PWM to use, the second
8	  cell is the period in nanoseconds and bit 0 in the third cell is used to
9	  encode the polarity of PWM output. Set bit 0 of the third in PWM specifier
10	  to 1 for inverse polarity & set to 0 for normal polarity.
11	- clocks: phandle to the PWM source clock
12	
13	Example:
14	
15	pwm1: pwm@d8220000 {
16		#pwm-cells = <3>;
17		compatible = "via,vt8500-pwm";
18		reg = <0xd8220000 0x1000>;
19		clocks = <&clkpwm>;
20	};
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