Commit d0c15cb9 authored by Lorenzo Bianconi's avatar Lorenzo Bianconi Committed by Linus Walleij
Browse files

dt-bindings: pinctrl: airoha: Add EN7581 pinctrl 



Introduce device-tree binding documentation for Airoha EN7581 pinctrl
controller.

Reviewed-by: default avatarRob Herring (Arm) <robh@kernel.org>
Reviewed-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Reviewed-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/20241023-en7581-pinctrl-v9-2-afb0cbcab0ec@kernel.org


Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent e2adb96f

Documentation/devicetree/bindings/pinctrl/airoha,en7581-pinctrl.yaml

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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/pinctrl/airoha,en7581-pinctrl.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Airoha EN7581 Pin Controller



maintainers:

  - Lorenzo Bianconi <lorenzo@kernel.org>



description:

  The Airoha's EN7581 Pin controller is used to control SoC pins.



properties:

  compatible:

    const: airoha,en7581-pinctrl



  interrupts:

    maxItems: 1



  gpio-controller: true



  '#gpio-cells':

    const: 2



  interrupt-controller: true



  '#interrupt-cells':

    const: 2



allOf:

  - $ref: pinctrl.yaml#



required:

  - compatible

  - interrupts

  - gpio-controller

  - "#gpio-cells"

  - interrupt-controller

  - "#interrupt-cells"



patternProperties:

  '-pins$':

    type: object



    patternProperties:

      '^mux(-|$)':

        type: object



        description:

          pinmux configuration nodes.



        $ref: /schemas/pinctrl/pinmux-node.yaml



        properties:

          function:

            description:

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

            enum: [pon, tod_1pps, sipo, mdio, uart, i2c, jtag, pcm, spi,

                   pcm_spi, i2s, emmc, pnand, pcie_reset, pwm, phy1_led0,

                   phy2_led0, phy3_led0, phy4_led0, phy1_led1, phy2_led1,

                   phy3_led1, phy4_led1]



          groups:

            description:

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



        required:

          - function

          - groups



        allOf:

          - if:

              properties:

                function:

                  const: pon

            then:

              properties:

                groups:

                  enum: [pon]

          - if:

              properties:

                function:

                  const: tod_1pps

            then:

              properties:

                groups:

                  enum: [pon_tod_1pps, gsw_tod_1pps]

          - if:

              properties:

                function:

                  const: sipo

            then:

              properties:

                groups:

                  enum: [sipo, sipo_rclk]

          - if:

              properties:

                function:

                  const: mdio

            then:

              properties:

                groups:

                  enum: [mdio]

          - if:

              properties:

                function:

                  const: uart

            then:

              properties:

                groups:

                  items:

                    enum: [uart2, uart2_cts_rts, hsuart, hsuart_cts_rts,

                           uart4, uart5]

                  maxItems: 2

          - if:

              properties:

                function:

                  const: i2c

            then:

              properties:

                groups:

                  enum: [i2c1]

          - if:

              properties:

                function:

                  const: jtag

            then:

              properties:

                groups:

                  enum: [jtag_udi, jtag_dfd]

          - if:

              properties:

                function:

                  const: pcm

            then:

              properties:

                groups:

                  enum: [pcm1, pcm2]

          - if:

              properties:

                function:

                  const: spi

            then:

              properties:

                groups:

                  items:

                    enum: [spi_quad, spi_cs1]

                  maxItems: 2

          - if:

              properties:

                function:

                  const: pcm_spi

            then:

              properties:

                groups:

                  items:

                    enum: [pcm_spi, pcm_spi_int, pcm_spi_rst, pcm_spi_cs1,

                           pcm_spi_cs2_p156, pcm_spi_cs2_p128, pcm_spi_cs3,

                           pcm_spi_cs4]

                  maxItems: 7

          - if:

              properties:

                function:

                  const: i2c

            then:

              properties:

                groups:

                  enum: [i2s]

          - if:

              properties:

                function:

                  const: emmc

            then:

              properties:

                groups:

                  enum: [emmc]

          - if:

              properties:

                function:

                  const: pnand

            then:

              properties:

                groups:

                  enum: [pnand]

          - if:

              properties:

                function:

                  const: pcie_reset

            then:

              properties:

                groups:

                  enum: [pcie_reset0, pcie_reset1, pcie_reset2]

          - if:

              properties:

                function:

                  const: pwm

            then:

              properties:

                groups:

                  enum: [gpio0, gpio1, gpio2, gpio3, gpio4, gpio5, gpio6,

                         gpio7, gpio8, gpio9, gpio10, gpio11, gpio12, gpio13,

                         gpio14, gpio15, gpio16, gpio17, gpio18, gpio19,

                         gpio20, gpio21, gpio22, gpio23, gpio24, gpio25,

                         gpio26, gpio27, gpio28, gpio29, gpio30, gpio31,

                         gpio36, gpio37, gpio38, gpio39, gpio40, gpio41,

                         gpio42, gpio43, gpio44, gpio45, gpio46, gpio47]

          - if:

              properties:

                function:

                  const: phy1_led0

            then:

              properties:

                groups:

                  enum: [gpio33, gpio34, gpio35, gpio42]

          - if:

              properties:

                function:

                  const: phy2_led0

            then:

              properties:

                groups:

                  enum: [gpio33, gpio34, gpio35, gpio42]

          - if:

              properties:

                function:

                  const: phy3_led0

            then:

              properties:

                groups:

                  enum: [gpio33, gpio34, gpio35, gpio42]

          - if:

              properties:

                function:

                  const: phy4_led0

            then:

              properties:

                groups:

                  enum: [gpio33, gpio34, gpio35, gpio42]

          - if:

              properties:

                function:

                  const: phy1_led1

            then:

              properties:

                groups:

                  enum: [gpio43, gpio44, gpio45, gpio46]

          - if:

              properties:

                function:

                  const: phy2_led1

            then:

              properties:

                groups:

                  enum: [gpio43, gpio44, gpio45, gpio46]

          - if:

              properties:

                function:

                  const: phy3_led1

            then:

              properties:

                groups:

                  enum: [gpio43, gpio44, gpio45, gpio46]

          - if:

              properties:

                function:

                  const: phy4_led1

            then:

              properties:

                groups:

                  enum: [gpio43, gpio44, gpio45, gpio46]



        additionalProperties: false



      '^conf(-|$)':

        type: object



        description:

          pinconf configuration nodes.



        $ref: /schemas/pinctrl/pincfg-node.yaml



        properties:

          pins:

            description:

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

            items:

              enum: [uart1_txd, uart1_rxd, i2c_scl, i2c_sda, spi_cs0, spi_clk,

                     spi_mosi, spi_miso, gpio0, gpio1, gpio2, gpio3, gpio4,

                     gpio5, gpio6, gpio7, gpio8, gpio9, gpio10, gpio11, gpio12,

                     gpio13, gpio14, gpio15, gpio16, gpio17, gpio18, gpio19,

                     gpio20, gpio21, gpio22, gpio23, gpio24, gpio25, gpio26,

                     gpio27, gpio28, gpio29, gpio30, gpio31, gpio32, gpio33,

                     gpio34, gpio35, gpio36, gpio37, gpio38, gpio39, gpio40,

                     gpio41, gpio42, gpio43, gpio44, gpio45, gpio46,

                     pcie_reset0, pcie_reset1, pcie_reset2]

            minItems: 1

            maxItems: 58



          bias-disable: true



          bias-pull-up: true



          bias-pull-down: true



          input-enable: true



          output-enable: true



          output-low: true



          output-high: true



          drive-open-drain: true



          drive-strength:

            description:

              Selects the drive strength for MIO pins, in mA.

            enum: [2, 4, 6, 8]



        required:

          - pins



        additionalProperties: false



    additionalProperties: false



additionalProperties: false



examples:

  - |

    #include <dt-bindings/interrupt-controller/arm-gic.h>



    pinctrl {

      compatible = "airoha,en7581-pinctrl";



      interrupt-parent = <&gic>;

      interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;



      gpio-controller;

      #gpio-cells = <2>;



      interrupt-controller;

      #interrupt-cells = <2>;



      pcie1-rst-pins {

        conf {

          pins = "pcie_reset1";

          drive-open-drain = <1>;

        };

      };



      pwm-pins {

        mux {

          function = "pwm";

          groups = "gpio18";

        };

      };



      spi-pins {

        mux {

          function = "spi";

          groups = "spi_quad", "spi_cs1";

        };

      };



      uart2-pins {

        mux {

          function = "uart";

          groups = "uart2", "uart2_cts_rts";

        };

      };



      uar5-pins {

        mux {

          function = "uart";

          groups = "uart5";

        };

      };



      mmc-pins {

        mux {

          function = "emmc";

          groups = "emmc";

        };

      };



      mdio-pins {

        mux {

          function = "mdio";

          groups = "mdio";

        };



        conf {

          pins = "gpio2";

          output-enable;

        };

      };

    };