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

   1 TI SOC ECAP based APWM controller
   2
   3 Required properties:
   4 - compatible: Must be "ti,<soc>-ecap".
   5   for am33xx - compatible = "ti,am3352-ecap", "ti,am33xx-ecap";
   6   for am4372 - compatible = "ti,am4372-ecap", "ti,am3352-ecap", "ti,am33xx-ecap";
   7   for da850  - compatible = "ti,da850-ecap", "ti,am3352-ecap", "ti,am33xx-ecap";
   8   for dra746 - compatible = "ti,dra746-ecap", "ti,am3352-ecap";
   9 - #pwm-cells: should be 3. See pwm.txt in this directory for a description of
  10   the cells format. The PWM channel index ranges from 0 to 4. The only third
  11   cell flag supported by this binding is PWM_POLARITY_INVERTED.
  12 - reg: physical base address and size of the registers map.
  13
  14 Optional properties:
  15 - clocks: Handle to the ECAP's functional clock.
  16 - clock-names: Must be set to "fck".
  17
  18 Example:
  19
  20 ecap0: ecap@48300100 { /* ECAP on am33xx */
  21         compatible = "ti,am3352-ecap", "ti,am33xx-ecap";
  22         #pwm-cells = <3>;
  23         reg = <0x48300100 0x80>;
  24         clocks = <&l4ls_gclk>;
  25         clock-names = "fck";
  26 };
  27
  28 ecap0: ecap@48300100 { /* ECAP on am4372 */
  29         compatible = "ti,am4372-ecap", "ti,am3352-ecap", "ti,am33xx-ecap";
  30         #pwm-cells = <3>;
  31         reg = <0x48300100 0x80>;
  32         ti,hwmods = "ecap0";
  33         clocks = <&l4ls_gclk>;
  34         clock-names = "fck";
  35 };
  36
  37 ecap0: ecap@1f06000 { /* ECAP on da850 */
  38         compatible = "ti,da850-ecap", "ti,am3352-ecap", "ti,am33xx-ecap";
  39         #pwm-cells = <3>;
  40         reg = <0x1f06000 0x80>;
  41 };
  42
  43 ecap0: ecap@4843e100 {
  44         compatible = "ti,dra746-ecap", "ti,am3352-ecap";
  45         #pwm-cells = <3>;
  46         reg = <0x4843e100 0x80>;
  47         clocks = <&l4_root_clk_div>;
  48         clock-names = "fck";
  49 };