Commit c5eda033 authored by Chris Packham's avatar Chris Packham Committed by Andi Shyti
Browse files

dt-bindings: i2c: Add Realtek RTL I2C Controller 



Add dt-schema for the I2C controller on the RTL9300 Ethernet switch
with integrated SoC.

Signed-off-by: default avatarChris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: default avatarAndi Shyti <andi.shyti@kernel.org>
parent 51616b0c

Documentation/devicetree/bindings/i2c/realtek,rtl9301-i2c.yaml

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/i2c/realtek,rtl9301-i2c.yaml#

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



title: Realtek RTL I2C Controller



maintainers:

  - Chris Packham <chris.packham@alliedtelesis.co.nz>



description:

  The RTL9300 SoC has two I2C controllers. Each of these has an SCL line (which

  if not-used for SCL can be a GPIO). There are 8 common SDA lines that can be

  assigned to either I2C controller.



properties:

  compatible:

    oneOf:

      - items:

          - enum:

              - realtek,rtl9302b-i2c

              - realtek,rtl9302c-i2c

              - realtek,rtl9303-i2c

          - const: realtek,rtl9301-i2c

      - const: realtek,rtl9301-i2c



  reg:

    description: Register offset and size this I2C controller.



  "#address-cells":

    const: 1



  "#size-cells":

    const: 0



patternProperties:

  '^i2c@[0-7]$':

    $ref: /schemas/i2c/i2c-controller.yaml

    unevaluatedProperties: false



    properties:

      reg:

        description: The SDA pin associated with the I2C bus.

        maxItems: 1



    required:

      - reg



required:

  - compatible

  - reg



additionalProperties: false



examples:

  - |

    i2c@36c {

      compatible = "realtek,rtl9301-i2c";

      reg = <0x36c 0x14>;

      #address-cells = <1>;

      #size-cells = <0>;



      i2c@2 {

        reg = <2>;

        #address-cells = <1>;

        #size-cells = <0>;

      };

    };