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

   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 };