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

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/pwm/pwm-tiehrpwm.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: TI SOC EHRPWM based PWM controller
   8
   9 maintainers:
  10   - Vignesh R <vigneshr@ti.com>
  11
  12 allOf:
  13   - $ref: pwm.yaml#
  14
  15 properties:
  16   compatible:
  17     oneOf:
  18       - const: ti,am3352-ehrpwm
  19       - items:
  20           - enum:
  21               - ti,da850-ehrpwm
  22               - ti,am4372-ehrpwm
  23               - ti,dra746-ehrpwm
  24               - ti,am654-ehrpwm
  25               - ti,am64-epwm
  26           - const: ti,am3352-ehrpwm
  27
  28   reg:
  29     maxItems: 1
  30
  31   "#pwm-cells":
  32     const: 3
  33     description: |
  34       See pwm.yaml in this directory for a description of the cells format.
  35       The only third cell flag supported by this binding is PWM_POLARITY_INVERTED.
  36
  37   clock-names:
  38     items:
  39       - const: tbclk
  40       - const: fck
  41
  42   clocks:
  43     maxItems: 2
  44
  45   power-domains:
  46     maxItems: 1
  47
  48 required:
  49   - compatible
  50   - reg
  51   - "#pwm-cells"
  52   - clocks
  53   - clock-names
  54
  55 additionalProperties: false
  56
  57 examples:
  58   - |
  59     ehrpwm0: pwm@48300200 { /* EHRPWM on am33xx */
  60         compatible = "ti,am3352-ehrpwm";
  61         #pwm-cells = <3>;
  62         reg = <0x48300200 0x100>;
  63         clocks = <&ehrpwm0_tbclk>, <&l4ls_gclk>;
  64         clock-names = "tbclk", "fck";
  65     };