Add binding for the Ralink RT305X pin controller for RT3050, RT3052, RT3350, RT3352 and RT5350 SoCs. Signed-off-by: Arınç ÜNAL <arinc.unal@xxxxxxxxxx> --- .../pinctrl/ralink,rt305x-pinctrl.yaml | 89 +++++++++++++++++++ 1 file changed, 89 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/ralink,rt305x-pinctrl.yaml diff --git a/Documentation/devicetree/bindings/pinctrl/ralink,rt305x-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/ralink,rt305x-pinctrl.yaml new file mode 100644 index 000000000000..39f4a153d94b --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/ralink,rt305x-pinctrl.yaml @@ -0,0 +1,89 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pinctrl/ralink,rt305x-pinctrl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Ralink RT305X Pin Controller + +maintainers: + - Arınç ÜNAL <arinc.unal@xxxxxxxxxx> + - Sergio Paracuellos <sergio.paracuellos@xxxxxxxxx> + +description: + Ralink RT305X pin controller for RT3050, RT3052, RT3350, RT3352 and RT5350 SoCs. + The pin controller can only set the muxing of pin groups. Muxing indiviual pins + is not supported. There is no pinconf support. + +properties: + compatible: + const: ralink,rt305x-pinctrl + +patternProperties: + '-pins$': + type: object + patternProperties: + '^(.*-)?pinmux$': + type: object + description: node for pinctrl. + $ref: pinmux-node.yaml# + + properties: + groups: + description: The pin group to select. + enum: [ + # For RT3050, RT3052 and RT3350 SoCs + i2c, jtag, mdio, rgmii, sdram, spi, uartf, uartlite, + + # For RT3352 SoC + i2c, jtag, led, lna, mdio, pa, rgmii, spi, spi_cs1, uartf, uartlite, + + # For RT5350 SoC + i2c, jtag, led, spi, spi_cs1, uartf, uartlite, + ] + + function: + description: The mux function to select. + enum: [ + # For RT3050, RT3052 and RT3350 SoCs + gpio, gpio i2s, gpio uartf, i2c, i2s uartf, jtag, mdio, pcm gpio, pcm i2s, pcm uartf, rgmii, + sdram, spi, uartf, uartlite, + + # For RT3352 SoC + gpio, gpio i2s, gpio uartf, i2c, i2s uartf, jtag, led, lna, mdio, pa, pcm gpio, pcm i2s, + pcm uartf, rgmii, spi, spi_cs1, uartf, uartlite, wdg_cs1, + + # For RT5350 SoC + gpio, gpio i2s, gpio uartf, i2c, i2s uartf, jtag, led, pcm gpio, pcm i2s, pcm uartf, spi, + spi_cs1, uartf, uartlite, wdg_cs1, + ] + + required: + - groups + - function + + additionalProperties: false + + additionalProperties: false + +allOf: + - $ref: "pinctrl.yaml#" + +required: + - compatible + +additionalProperties: false + +examples: + # Pinmux controller node + - | + pinctrl { + compatible = "ralink,rt305x-pinctrl"; + + i2c_pins: i2c0-pins { + pinmux { + groups = "i2c"; + function = "i2c"; + }; + }; + }; -- 2.25.1
