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

   1 TI SOC EHRPWM based PWM controller
   2
   3 Required properties:
   4 - compatible: Must be "ti,<soc>-ehrpwm".
   5   for am33xx  - compatible = "ti,am33xx-ehrpwm";
   6   for am4372  - compatible = "ti,am4372-ehrpwm", "ti,am33xx-ehrpwm";
   7   for da850   - compatible = "ti,da850-ehrpwm", "ti,am33xx-ehrpwm";
   8 - #pwm-cells: should be 3. See pwm.txt in this directory for a description of
   9   the cells format. The only third cell flag supported by this binding is
  10   PWM_POLARITY_INVERTED.
  11 - reg: physical base address and size of the registers map.
  12
  13 Optional properties:
  14 - ti,hwmods: Name of the hwmod associated to the EHRPWM:
  15   "ehrpwm<x>", <x> being the 0-based instance number from the HW spec
  16
  17 Example:
  18
  19 ehrpwm0: ehrpwm@0 { /* EHRPWM on am33xx */
  20         compatible = "ti,am33xx-ehrpwm";
  21         #pwm-cells = <3>;
  22         reg = <0x48300200 0x100>;
  23         ti,hwmods = "ehrpwm0";
  24 };
  25
  26 ehrpwm0: ehrpwm@0 { /* EHRPWM on am4372 */
  27         compatible = "ti,am4372-ehrpwm", "ti,am33xx-ehrpwm";
  28         #pwm-cells = <3>;
  29         reg = <0x48300200 0x80>;
  30         ti,hwmods = "ehrpwm0";
  31 };
  32
  33 ehrpwm0: ehrpwm@0 { /* EHRPWM on da850 */
  34         compatible = "ti,da850-ehrpwm", "ti,am33xx-ehrpwm";
  35         #pwm-cells = <3>;
  36         reg = <0x300000 0x2000>;
  37 };