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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,rt3883-pinctrl.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Ralink RT3883 Pin Controller
    8 
    9 maintainers:
   10   - Arınç ÜNAL <arinc.unal@arinc9.com>
   11   - Sergio Paracuellos <sergio.paracuellos@gmail.com>
   12 
   13 description:
   14   Ralink RT3883 pin controller for RT3883 SoC.
   15   The pin controller can only set the muxing of pin groups. Muxing individual
   16   pins is not supported. There is no pinconf support.
   17 
   18 properties:
   19   compatible:
   20     const: ralink,rt3883-pinctrl
   21 
   22 patternProperties:
   23   '-pins$':
   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: [ge1, ge2, i2c, jtag, lna a, lna g, mdio, pci, spi, uartf,
   35                    uartlite]
   36 
   37           function:
   38             description: The mux function to select.
   39             enum: [ge1, ge2, gpio, gpio i2s, gpio uartf, i2c, i2s uartf, jtag,
   40                    lna a, lna g, mdio, pci-dev, pci-fnc, pci-host1, pci-host2,
   41                    pcm gpio, pcm i2s, pcm uartf, spi, uartf, uartlite]
   42 
   43         required:
   44           - groups
   45           - function
   46 
   47         additionalProperties: false
   48 
   49     additionalProperties: false
   50 
   51 allOf:
   52   - $ref: "pinctrl.yaml#"
   53 
   54 required:
   55   - compatible
   56 
   57 additionalProperties: false
   58 
   59 examples:
   60   # Pinmux controller node
   61   - |
   62     pinctrl {
   63       compatible = "ralink,rt3883-pinctrl";
   64 
   65       i2c_pins: i2c0-pins {
   66         pinmux {
   67           groups = "i2c";
   68           function = "i2c";
   69         };
   70       };
   71     };
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