linux/Documentation/devicetree/bindings/pinctrl/mediatek,mt7620-pinctrl.yaml

# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/pinctrl/mediatek,mt7620-pinctrl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: MediaTek MT7620 Pin Controller

maintainers:
  - Arınç ÜNAL <arinc.unal@arinc9.com>
  - Sergio Paracuellos <sergio.paracuellos@gmail.com>

description: |
  MediaTek MT7620 pin controller for MT7620 SoC.
  The pin controller can only set the muxing of pin groups. Muxing individual
  pins is not supported. There is no pinconf support.

properties:
  compatible:
    const: ralink,mt7620-pinctrl

patternProperties:
  '-pins$':
    type: object
    additionalProperties: false

    patternProperties:
      '^(.*-)?pinmux$':
        type: object
        description: node for pinctrl.
        $ref: pinmux-node.yaml#
        additionalProperties: false

        properties:
          function:
            description:
              A string containing the name of the function to mux to the group.
            enum: [ephy, gpio, gpio i2s, gpio uartf, i2c, i2s uartf, mdio, nand,
                   pa, pcie refclk, pcie rst, pcm gpio, pcm i2s, pcm uartf,
                   refclk, rgmii1, rgmii2, sd, spi, spi refclk, uartf, uartlite,
                   wdt refclk, wdt rst, wled]

          groups:
            description:
              An array of strings. Each string contains the name of a group.
            maxItems: 1

        required:
          - groups
          - function

        allOf:
          - if:
              properties:
                function:
                  const: ephy
            then:
              properties:
                groups:
                  enum: [ephy]

          - if:
              properties:
                function:
                  const: gpio
            then:
              properties:
                groups:
                  enum: [ephy, i2c, mdio, nd_sd, pa, pcie, rgmii1, rgmii2, spi,
                         spi refclk, uartf, uartlite, wdt, wled]

          - if:
              properties:
                function:
                  const: gpio i2s
            then:
              properties:
                groups:
                  enum: [uartf]

          - if:
              properties:
                function:
                  const: gpio uartf
            then:
              properties:
                groups:
                  enum: [uartf]

          - if:
              properties:
                function:
                  const: i2c
            then:
              properties:
                groups:
                  enum: [i2c]

          - if:
              properties:
                function:
                  const: i2s uartf
            then:
              properties:
                groups:
                  enum: [uartf]

          - if:
              properties:
                function:
                  const: mdio
            then:
              properties:
                groups:
                  enum: [mdio]

          - if:
              properties:
                function:
                  const: nand
            then:
              properties:
                groups:
                  enum: [nd_sd]

          - if:
              properties:
                function:
                  const: pa
            then:
              properties:
                groups:
                  enum: [pa]

          - if:
              properties:
                function:
                  const: pcie refclk
            then:
              properties:
                groups:
                  enum: [pcie]

          - if:
              properties:
                function:
                  const: pcie rst
            then:
              properties:
                groups:
                  enum: [pcie]

          - if:
              properties:
                function:
                  const: pcm gpio
            then:
              properties:
                groups:
                  enum: [uartf]

          - if:
              properties:
                function:
                  const: pcm i2s
            then:
              properties:
                groups:
                  enum: [uartf]

          - if:
              properties:
                function:
                  const: pcm uartf
            then:
              properties:
                groups:
                  enum: [uartf]

          - if:
              properties:
                function:
                  const: refclk
            then:
              properties:
                groups:
                  enum: [mdio]

          - if:
              properties:
                function:
                  const: rgmii1
            then:
              properties:
                groups:
                  enum: [rgmii1]

          - if:
              properties:
                function:
                  const: rgmii2
            then:
              properties:
                groups:
                  enum: [rgmii2]

          - if:
              properties:
                function:
                  const: sd
            then:
              properties:
                groups:
                  enum: [nd_sd]

          - if:
              properties:
                function:
                  const: spi
            then:
              properties:
                groups:
                  enum: [spi]

          - if:
              properties:
                function:
                  const: spi refclk
            then:
              properties:
                groups:
                  enum: [spi refclk]

          - if:
              properties:
                function:
                  const: uartf
            then:
              properties:
                groups:
                  enum: [uartf]

          - if:
              properties:
                function:
                  const: uartlite
            then:
              properties:
                groups:
                  enum: [uartlite]

          - if:
              properties:
                function:
                  const: wdt refclk
            then:
              properties:
                groups:
                  enum: [wdt]

          - if:
              properties:
                function:
                  const: wdt rst
            then:
              properties:
                groups:
                  enum: [wdt]

          - if:
              properties:
                function:
                  const: wled
            then:
              properties:
                groups:
                  enum: [wled]

allOf:
  - $ref: pinctrl.yaml#

required:
  - compatible

additionalProperties: false

examples:
  - |
    pinctrl {
      compatible = "ralink,mt7620-pinctrl";

      i2c_pins: i2c0-pins {
        pinmux {
          groups = "i2c";
          function = "i2c";
        };
      };
    };