Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.yaml

# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/pwm/renesas,pwm-rcar.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Renesas R-Car PWM Timer Controller

maintainers:
  - Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>

properties:
  compatible:
    items:
      - enum:
          - renesas,pwm-r8a7742   # RZ/G1H
          - renesas,pwm-r8a7743   # RZ/G1M
          - renesas,pwm-r8a7744   # RZ/G1N
          - renesas,pwm-r8a7745   # RZ/G1E
          - renesas,pwm-r8a77470  # RZ/G1C
          - renesas,pwm-r8a774a1  # RZ/G2M
          - renesas,pwm-r8a774b1  # RZ/G2N
          - renesas,pwm-r8a774c0  # RZ/G2E
          - renesas,pwm-r8a774e1  # RZ/G2H
          - renesas,pwm-r8a7778   # R-Car M1A
          - renesas,pwm-r8a7779   # R-Car H1
          - renesas,pwm-r8a7790   # R-Car H2
          - renesas,pwm-r8a7791   # R-Car M2-W
          - renesas,pwm-r8a7794   # R-Car E2
          - renesas,pwm-r8a7795   # R-Car H3
          - renesas,pwm-r8a7796   # R-Car M3-W
          - renesas,pwm-r8a77961  # R-Car M3-W+
          - renesas,pwm-r8a77965  # R-Car M3-N
          - renesas,pwm-r8a77970  # R-Car V3M
          - renesas,pwm-r8a77980  # R-Car V3H
          - renesas,pwm-r8a77990  # R-Car E3
          - renesas,pwm-r8a77995  # R-Car D3
          - renesas,pwm-r8a779a0  # R-Car V3U
          - renesas,pwm-r8a779g0  # R-Car V4H
      - const: renesas,pwm-rcar

  reg:
    # base address and length of the registers block for the PWM.
    maxItems: 1

  '#pwm-cells':
    # should be 2. See pwm.yaml in this directory for a description of
    # the cells format.
    const: 2

  clocks:
    # clock phandle and specifier pair.
    maxItems: 1

  power-domains:
    maxItems: 1

  resets:
    maxItems: 1

required:
  - compatible
  - reg
  - clocks
  - power-domains

allOf:
  - $ref: pwm.yaml#

  - if:
      not:
        properties:
          compatible:
            contains:
              enum:
                - renesas,pwm-r8a7778
                - renesas,pwm-r8a7779
    then:
      required:
        - resets

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/r8a7743-cpg-mssr.h>
    #include <dt-bindings/power/r8a7743-sysc.h>

    pwm0: pwm@e6e30000 {
        compatible = "renesas,pwm-r8a7743", "renesas,pwm-rcar";
        reg = <0xe6e30000 0x8>;
        clocks = <&cpg CPG_MOD 523>;
        power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
        resets = <&cpg 523>;
        #pwm-cells = <2>;
        pinctrl-0 = <&pwm0_pins>;
        pinctrl-names = "default";
    };