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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-pinctrl.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Ralink RT2880 Pin Controller
    8 
    9 maintainers:
   10   - Arınç ÜNAL <arinc.unal@arinc9.com>
   11   - Sergio Paracuellos <sergio.paracuellos@gmail.com>
   12 
   13 description:
   14   Ralink RT2880 pin controller for RT2880 SoC.
   15   The pin controller can only set the muxing of pin groups. Muxing individual
   16   pins is not supported. There is no pinconf support.
   17 
   18 properties:
   19   compatible:
   20     const: ralink,rt2880-pinctrl
   21 
   22 patternProperties:
   23   '-pins$':
   24     type: object
   25     patternProperties:
   26       '^(.*-)?pinmux$':
   27         type: object
   28         description: node for pinctrl.
   29         $ref: pinmux-node.yaml#
   30 
   31         properties:
   32           groups:
   33             description: The pin group to select.
   34             enum: [i2c, spi, uartlite, jtag, mdio, sdram, pci]
   35 
   36           function:
   37             description: The mux function to select.
   38             enum: [gpio, i2c, spi, uartlite, jtag, mdio, sdram, pci]
   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-pinctrl";
   61 
   62       i2c_pins: i2c0-pins {
   63         pinmux {
   64           groups = "i2c";
   65           function = "i2c";
   66         };
   67       };
   68     };
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