b4ac843958
Not every function can be muxed to a group. Add proper binding which documents which function can be muxed to a group or set of groups. Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> Link: https://lore.kernel.org/r/20221231160849.40544-5-arinc.unal@arinc9.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
143 lines
3.1 KiB
YAML
143 lines
3.1 KiB
YAML
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/pinctrl/ralink,rt2880-pinctrl.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Ralink RT2880 Pin Controller
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maintainers:
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- Arınç ÜNAL <arinc.unal@arinc9.com>
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- Sergio Paracuellos <sergio.paracuellos@gmail.com>
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description:
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Ralink RT2880 pin controller for RT2880 SoC.
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The pin controller can only set the muxing of pin groups. Muxing individual
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pins is not supported. There is no pinconf support.
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properties:
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compatible:
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const: ralink,rt2880-pinctrl
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patternProperties:
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'-pins$':
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type: object
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patternProperties:
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'^(.*-)?pinmux$':
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type: object
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description: node for pinctrl.
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$ref: pinmux-node.yaml#
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properties:
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function:
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description:
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A string containing the name of the function to mux to the group.
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enum: [gpio, i2c, spi, uartlite, jtag, mdio, sdram, pci]
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groups:
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description:
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An array of strings. Each string contains the name of a group.
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maxItems: 1
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required:
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- groups
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- function
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allOf:
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- if:
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properties:
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function:
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const: gpio
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then:
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properties:
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groups:
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enum: [i2c, spi, uartlite, jtag, mdio, sdram, pci]
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- if:
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properties:
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function:
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const: i2c
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then:
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properties:
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groups:
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enum: [i2c]
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- if:
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properties:
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function:
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const: spi
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then:
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properties:
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groups:
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enum: [spi]
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- if:
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properties:
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function:
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const: uartlite
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then:
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properties:
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groups:
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enum: [uartlite]
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- if:
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properties:
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function:
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const: jtag
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then:
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properties:
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groups:
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enum: [jtag]
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- if:
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properties:
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function:
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const: mdio
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then:
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properties:
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groups:
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enum: [mdio]
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- if:
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properties:
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function:
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const: sdram
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then:
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properties:
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groups:
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enum: [sdram]
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- if:
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properties:
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function:
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const: pci
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then:
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properties:
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groups:
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enum: [pci]
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additionalProperties: false
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additionalProperties: false
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allOf:
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- $ref: "pinctrl.yaml#"
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required:
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- compatible
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additionalProperties: false
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examples:
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- |
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pinctrl {
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compatible = "ralink,rt2880-pinctrl";
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i2c_pins: i2c0-pins {
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pinmux {
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groups = "i2c";
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function = "i2c";
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};
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};
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};
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