On Tue, Dec 08, 2020 at 08:55:22AM +0100, Sergio Paracuellos wrote:
> The commit adds rt2880 compatible node in binding document.
>
> Signed-off-by: Sergio Paracuellos <[email protected]>
> ---
> .../pinctrl/ralink,rt2880-pinmux.yaml | 70 +++++++++++++++++++
> 1 file changed, 70 insertions(+)
> create mode 100644
> Documentation/devicetree/bindings/pinctrl/ralink,rt2880-pinmux.yaml
>
> diff --git
> a/Documentation/devicetree/bindings/pinctrl/ralink,rt2880-pinmux.yaml
> b/Documentation/devicetree/bindings/pinctrl/ralink,rt2880-pinmux.yaml
> new file mode 100644
> index 000000000000..7dea3e26d99e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pinctrl/ralink,rt2880-pinmux.yaml
> @@ -0,0 +1,70 @@
> +# 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 <[email protected]>
> +
> +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
What's the control interface as you have no 'reg' property.
> +
> + 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
These 2 properties go in consumer nodes.
> +
> +required:
> + - compatible
> +
> +patternProperties:
> + '[a-z0-9_-]+':
> + if:
> + type: object
> + description: node for pinctrl.
> + $ref: "pinmux-node.yaml"
> + then:
For new bindings, don't do this hack. Just name the nodes '-pins$'
> + 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
> +
> +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";
> + };
> + };
> + };
> --
> 2.25.1
>
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