Documentation/devicetree/bindings/pinctrl/ralink,mt7621-pinctrl.yaml

# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/pinctrl/ralink,mt7621-pinctrl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Ralink MT7621 Pin Controller

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

description:
  Ralink MT7621 pin controller for MT7621 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,mt7621-pinctrl

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

        properties:
          groups:
            description: The pin group to select.
            enum: [i2c, jtag, mdio, pcie, rgmii1, rgmii2, sdhci, spi, uart1,
                   uart2, uart3, wdt]

          function:
            description: The mux function to select.
            enum: [gpio, i2c, i2s, jtag, mdio, nand1, nand2, pcie refclk,
                   pcie rst, pcm, rgmii1, rgmii2, sdhci, spdif2, spdif3, spi,
                   uart1, uart2, uart3, wdt refclk, wdt rst]

        required:
          - groups
          - function

        additionalProperties: false

    additionalProperties: false

allOf:
  - $ref: "pinctrl.yaml#"

required:
  - compatible

additionalProperties: false

examples:
  # Pinmux controller node
  - |
    pinctrl {
      compatible = "ralink,mt7621-pinctrl";

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