kernel/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: should be 2. See pwm.txt in this directory for a description of
   9   the cells format.
  10
  11 Example:
  12
  13         pwm: pwm@a8000000 {
  14             compatible ="st,spear320-pwm";
  15             reg = <0xa8000000 0x1000>;
  16             #pwm-cells = <2>;
  17         };