Commit b4ac8439 authored by Arınç ÜNAL's avatar Arınç ÜNAL Committed by Linus Walleij
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dt-bindings: pinctrl: rt2880: add proper function muxing binding 



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: default avatarArınç ÜNAL <arinc.unal@arinc9.com>
Acked-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: default avatarSergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20221231160849.40544-5-arinc.unal@arinc9.com


Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 0c9a5676

Documentation/devicetree/bindings/pinctrl/ralink,rt2880-pinctrl.yaml

+80 −6
Original line number Diff line number Diff line
@@ -29,18 +29,93 @@ patternProperties: 
        $ref: pinmux-node.yaml#



        properties:

          groups:

            description: The pin group to select.

            enum: [i2c, spi, uartlite, jtag, mdio, sdram, pci]



          function:

            description: The mux function to select.

            description:

              A string containing the name of the function to mux to the group.

            enum: [gpio, i2c, spi, uartlite, jtag, mdio, sdram, pci]



          groups:

            description:

              An array of strings. Each string contains the name of a group.

            maxItems: 1



        required:

          - groups

          - function



        allOf:

          - if:

              properties:

                function:

                  const: gpio

            then:

              properties:

                groups:

                  enum: [i2c, spi, uartlite, jtag, mdio, sdram, pci]



          - if:

              properties:

                function:

                  const: i2c

            then:

              properties:

                groups:

                  enum: [i2c]



          - if:

              properties:

                function:

                  const: spi

            then:

              properties:

                groups:

                  enum: [spi]



          - if:

              properties:

                function:

                  const: uartlite

            then:

              properties:

                groups:

                  enum: [uartlite]



          - if:

              properties:

                function:

                  const: jtag

            then:

              properties:

                groups:

                  enum: [jtag]



          - if:

              properties:

                function:

                  const: mdio

            then:

              properties:

                groups:

                  enum: [mdio]



          - if:

              properties:

                function:

                  const: sdram

            then:

              properties:

                groups:

                  enum: [sdram]



          - if:

              properties:

                function:

                  const: pci

            then:

              properties:

                groups:

                  enum: [pci]



        additionalProperties: false



    additionalProperties: false
@@ -54,7 +129,6 @@ required: 
additionalProperties: false



examples:

  # Pinmux controller node

  - |

    pinctrl {

      compatible = "ralink,rt2880-pinctrl";