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     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, jtag, mdio, pcie, rgmii1, rgmii2, sdhci, spi,
   33                    uart1, uart2, uart3, wdt]
   34           function:
   35             description: The mux function to select
   36             enum: [gpio, i2c, i2s, jtag, mdio, nand1, nand2, pcie refclk,
   37                    pcie rst, pcm, rgmii1, rgmii2, sdhci, spdif2, spdif3,
   38                    spi, uart1, uart2, uart3, wdt refclk, wdt rst]
   39 
   40         required:
   41           - groups
   42           - function
   43 
   44         additionalProperties: false
   45 
   46     additionalProperties: false
   47 
   48 allOf:
   49   - $ref: "pinctrl.yaml#"
   50 
   51 required:
   52   - compatible
   53 
   54 additionalProperties: false
   55 
   56 examples:
   57   # Pinmux controller node
   58   - |
   59     pinctrl {
   60       compatible = "ralink,rt2880-pinmux";
   61 
   62       i2c_pins: i2c0-pins {
   63         pinmux {
   64           groups = "i2c";
   65           function = "i2c";
   66         };
   67       };
   68     };
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