Documentation/devicetree/bindings/pinctrl/ralink,rt2880-pinmux.yaml

   1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/pinctrl/ralink,rt2880-pinmux.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Ralink rt2880 pinmux controller
   8
   9 maintainers:
  10   - Sergio Paracuellos <sergio.paracuellos@gmail.com>
  11
  12 description:
  13   The rt2880 pinmux can only set the muxing of pin groups. muxing indiviual pins
  14   is not supported. There is no pinconf support.
  15
  16 properties:
  17   compatible:
  18     const: ralink,rt2880-pinmux
  19
  20 patternProperties:
  21   '-pins$':
  22     type: object
  23     patternProperties:
  24       '^(.*-)?pinmux$':
  25         type: object
  26         description: node for pinctrl.
  27         $ref: pinmux-node.yaml#
  28
  29         properties:
  30           groups:
  31             description: Name of the pin group to use for the functions.
  32             enum: [i2c, spi, uart1, uart2, uart3, rgmii1, rgmii2, mdio,
  33                    pcie, sdhci]
  34           function:
  35             description: The mux function to select
  36             enum: [gpio, i2c, spi, uart1, uart2, uart3, rgmii1, rgmii2,
  37                    mdio, nand1, nand2, sdhci]
  38
  39         required:
  40           - groups
  41           - function
  42
  43         additionalProperties: false
  44
  45     additionalProperties: false
  46
  47 required:
  48   - compatible
  49
  50 additionalProperties: false
  51
  52 examples:
  53   # Pinmux controller node
  54   - |
  55     pinctrl {
  56       compatible = "ralink,rt2880-pinmux";
  57
  58       i2c_pins: i2c0-pins {
  59         pinmux {
  60           groups = "i2c";
  61           function = "i2c";
  62         };
  63       };
  64     };