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+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/ralink,rt2880-pinmux.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Ralink rt2880 pinmux controller
+
+maintainers:
+ - Sergio Paracuellos <sergio.paracuellos@gmail.com>
+
+description:
+ The rt2880 pinmux can only set the muxing of pin groups. muxing indiviual pins
+ is not supported. There is no pinconf support.
+
+properties:
+ compatible:
+ enum:
+ - ralink,rt2880-pinmux
+
+ pinctrl-0:
+ description:
+ A phandle to the node containing the subnodes containing default
+ configurations. This is for pinctrl hogs.
+
+ pinctrl-names:
+ description:
+ A pinctrl state named "default" can be defined.
+ const: default
+
+required:
+ - compatible
+
+patternProperties:
+ '[a-z0-9_-]+':
+ if:
+ type: object
+ description: node for pinctrl.
+ $ref: "pinmux-node.yaml"
+ then:
+ properties:
+ groups:
+ description: Name of the pin group to use for the functions.
+ enum: [i2c, spi, uart1, uart2, uart3, rgmii1, rgmii2, mdio,
+ pcie, sdhci]
+ function:
+ description: The mux function to select
+ enum: [gpio, i2c, spi, uart1, uart2, uart3, rgmii1, rgmii2,
+ mdio, nand1, nand2, sdhci]
+
+additionalProperties: false
+
+examples:
+ # Pinmux controller node
+ - |
+ pinctrl {
+ compatible = "ralink,rt2880-pinmux";
+ pinctrl-names = "default";
+ pinctrl-0 = <&state_default>;
+
+ state_default: pinctrl0 {
+ };
+
+ i2c_pins: i2c0 {
+ i2c0 {
+ groups = "i2c";
+ function = "i2c";
+ };
+ };
+ };