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

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/gpio/renesas,rcar-gpio.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Renesas R-Car General-Purpose Input/Output Ports (GPIO)

maintainers:
  - Geert Uytterhoeven <geert+renesas@glider.be>

properties:
  compatible:
    oneOf:
      - items:
          - enum:
              - renesas,gpio-r8a7778      # R-Car M1
              - renesas,gpio-r8a7779      # R-Car H1
          - const: renesas,rcar-gen1-gpio # R-Car Gen1

      - items:
          - enum:
              - renesas,gpio-r8a7742      # RZ/G1H
              - renesas,gpio-r8a7743      # RZ/G1M
              - renesas,gpio-r8a7744      # RZ/G1N
              - renesas,gpio-r8a7745      # RZ/G1E
              - renesas,gpio-r8a77470     # RZ/G1C
              - renesas,gpio-r8a7790      # R-Car H2
              - renesas,gpio-r8a7791      # R-Car M2-W
              - renesas,gpio-r8a7792      # R-Car V2H
              - renesas,gpio-r8a7793      # R-Car M2-N
              - renesas,gpio-r8a7794      # R-Car E2
          - const: renesas,rcar-gen2-gpio # R-Car Gen2 or RZ/G1

      - items:
          - enum:
              - renesas,gpio-r8a774a1     # RZ/G2M
              - renesas,gpio-r8a774b1     # RZ/G2N
              - renesas,gpio-r8a774c0     # RZ/G2E
              - renesas,gpio-r8a774e1     # RZ/G2H
              - renesas,gpio-r8a7795      # R-Car H3
              - renesas,gpio-r8a7796      # R-Car M3-W
              - renesas,gpio-r8a77961     # R-Car M3-W+
              - renesas,gpio-r8a77965     # R-Car M3-N
              - renesas,gpio-r8a77970     # R-Car V3M
              - renesas,gpio-r8a77980     # R-Car V3H
              - renesas,gpio-r8a77990     # R-Car E3
              - renesas,gpio-r8a77995     # R-Car D3
          - const: renesas,rcar-gen3-gpio # R-Car Gen3 or RZ/G2

      - items:
          - enum:
              - renesas,gpio-r8a779a0     # R-Car V3U
              - renesas,gpio-r8a779f0     # R-Car S4-8
              - renesas,gpio-r8a779g0     # R-Car V4H
          - const: renesas,rcar-gen4-gpio # R-Car Gen4

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    maxItems: 1

  power-domains:
    maxItems: 1

  resets:
    maxItems: 1

  gpio-controller: true

  '#gpio-cells':
    const: 2

  interrupt-controller: true

  '#interrupt-cells':
    const: 2

  gpio-ranges:
    maxItems: 1

  gpio-reserved-ranges:
    minItems: 1
    maxItems: 8

patternProperties:
  "^.*$":
    if:
      type: object
    then:
      properties:
        gpio-hog: true
        gpios: true
        input: true
        output-high: true
        output-low: true
        line-name: true

      required:
        - gpio-hog
        - gpios

      additionalProperties: false

required:
  - compatible
  - reg
  - interrupts
  - gpio-controller
  - '#gpio-cells'
  - gpio-ranges
  - interrupt-controller
  - '#interrupt-cells'

if:
  not:
    properties:
      compatible:
        contains:
          enum:
            - renesas,rcar-gen1-gpio
then:
  required:
    - clocks
    - power-domains
    - resets

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/r8a77470-cpg-mssr.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/power/r8a77470-sysc.h>
    gpio3: gpio@e6053000 {
            compatible = "renesas,gpio-r8a77470", "renesas,rcar-gen2-gpio";
            reg = <0xe6053000 0x50>;
            interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
            clocks = <&cpg CPG_MOD 909>;
            power-domains = <&sysc R8A77470_PD_ALWAYS_ON>;
            resets = <&cpg 909>;
            gpio-controller;
            #gpio-cells = <2>;
            gpio-ranges = <&pfc 0 96 30>;
            gpio-reserved-ranges = <17 10>;
            interrupt-controller;
            #interrupt-cells = <2>;
     };