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

   1 == ST SPEAr SoC PWM controller ==
   2
   3 Required properties:
   4 - compatible: should be one of:
   5   - "st,spear320-pwm"
   6   - "st,spear1340-pwm"
   7 - reg: physical base address and length of the controller's registers
   8 - #pwm-cells: number of cells used to specify PWM which is fixed to 2 on
   9   SPEAr. The first cell specifies the per-chip index of the PWM to use and
  10   the second cell is the period in nanoseconds.
  11
  12 Example:
  13
  14         pwm: pwm@a8000000 {
  15             compatible ="st,spear320-pwm";
  16             reg = <0xa8000000 0x1000>;
  17             #pwm-cells = <2>;
  18         };