Documentation/devicetree/bindings/pinctrl/renesas,rzv2m-pinctrl.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/pinctrl/renesas,rzv2m-pinctrl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Renesas RZ/V2M combined Pin and GPIO controller

maintainers:
  - Fabrizio Castro <fabrizio.castro.jz@renesas.com>
  - Geert Uytterhoeven <geert+renesas@glider.be>

description:
  The Renesas RZ/V2M SoC features a combined Pin and GPIO controller.
  Pin multiplexing and GPIO configuration is performed on a per-pin basis.
  Each port features up to 16 pins, each of them configurable for GPIO function
  (port mode) or in alternate function mode.
  Up to 8 different alternate function modes exist for each single pin.

properties:
  compatible:
    const: renesas,r9a09g011-pinctrl # RZ/V2M

  reg:
    maxItems: 1

  gpio-controller: true

  '#gpio-cells':
    const: 2
    description:
      The first cell contains the global GPIO port index, constructed using the
      RZV2M_GPIO() helper macro in <dt-bindings/pinctrl/rzv2m-pinctrl.h> and the
      second cell represents consumer flag as mentioned in ../gpio/gpio.txt
      E.g. "RZV2M_GPIO(8, 1)" for P8_1.

  gpio-ranges:
    maxItems: 1

  interrupts:
    description: INEXINT[0..38] corresponding to individual pin inputs.
    maxItems: 39

  clocks:
    maxItems: 1

  power-domains:
    maxItems: 1

  resets:
    maxItems: 1

additionalProperties:
  anyOf:
    - type: object
      additionalProperties: false
      allOf:
        - $ref: pincfg-node.yaml#
        - $ref: pinmux-node.yaml#

      description:
        Pin controller client devices use pin configuration subnodes (children
        and grandchildren) for desired pin configuration.
        Client device subnodes use below standard properties.

      properties:
        pinmux:
          description:
            Values are constructed from GPIO port number, pin number, and
            alternate function configuration number using the RZV2M_PORT_PINMUX()
            helper macro in <dt-bindings/pinctrl/rzv2m-pinctrl.h>.
        pins: true
        bias-disable: true
        bias-pull-down: true
        bias-pull-up: true
        drive-strength-microamp:
          # Superset of supported values
          enum: [ 1600, 1800, 2000, 3200, 3800, 4000, 6400, 7800, 8000,
                  9000, 9600, 11000, 12000, 13000, 18000 ]
        slew-rate:
          description: 0 is slow slew rate, 1 is fast slew rate
          enum: [ 0, 1 ]
        gpio-hog: true
        gpios: true
        output-high: true
        output-low: true
        line-name: true

    - type: object
      additionalProperties:
        $ref: "#/additionalProperties/anyOf/0"

allOf:
  - $ref: pinctrl.yaml#

required:
  - compatible
  - reg
  - gpio-controller
  - '#gpio-cells'
  - gpio-ranges
  - interrupts
  - clocks
  - power-domains
  - resets

examples:
  - |
    #include <dt-bindings/pinctrl/rzv2m-pinctrl.h>
    #include <dt-bindings/clock/r9a09g011-cpg.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>

    pinctrl: pinctrl@b6250000 {
            compatible = "renesas,r9a09g011-pinctrl";
            reg = <0xb6250000 0x800>;

            gpio-controller;
            #gpio-cells = <2>;
            gpio-ranges = <&pinctrl 0 0 352>;
            interrupts = <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
            clocks = <&cpg CPG_MOD R9A09G011_PFC_PCLK>;
            resets = <&cpg R9A09G011_PFC_PRESETN>;
            power-domains = <&cpg>;

            i2c2_pins: i2c2 {
                    pinmux = <RZV2M_PORT_PINMUX(3, 8, 2)>, /* SDA */
                             <RZV2M_PORT_PINMUX(3, 9, 2)>; /* SCL */
            };
    };