Commit af45de83 authored by Neil Armstrong's avatar Neil Armstrong Committed by Wolfram Sang
Browse files

dt-bindings: qcom: geni-se: document I2C Master Hub wrapper variant 



The I2C Master Hub is a stripped down version of the GENI Serial Engine
QUP Wrapper Controller but only supporting I2C serial engines without
DMA support.

Document the variant compatible, forbid UART and SPI sub-nodes,
and remove requirement for the Master AHB clock and iommu property.

Signed-off-by: default avatarNeil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: default avatarWolfram Sang <wsa@kernel.org>
parent de917701

Documentation/devicetree/bindings/soc/qcom/qcom,geni-se.yaml

+38 −6
Original line number Diff line number Diff line
@@ -21,20 +21,19 @@ properties: 
  compatible:

    enum:

      - qcom,geni-se-qup

      - qcom,geni-se-i2c-master-hub



  reg:

    description: QUP wrapper common register address and length.

    maxItems: 1



  clock-names:

    items:

      - const: m-ahb

      - const: s-ahb

    minItems: 1

    maxItems: 2



  clocks:

    items:

      - description: Master AHB Clock

      - description: Slave AHB Clock

    minItems: 1

    maxItems: 2



  "#address-cells":

    const: 2
@@ -81,6 +80,39 @@ patternProperties: 
    description: GENI Serial Engine based UART Controller.

    $ref: /schemas/serial/qcom,serial-geni-qcom.yaml#



allOf:

  - if:

      properties:

        compatible:

          contains:

            const: qcom,geni-se-i2c-master-hub

    then:

      properties:

        clock-names:

          items:

            - const: s-ahb



        clocks:

          items:

            - description: Slave AHB Clock



        iommus: false



      patternProperties:

        "spi@[0-9a-f]+$": false

        "serial@[0-9a-f]+$": false

    else:

      properties:

        clock-names:

          items:

            - const: m-ahb

            - const: s-ahb



        clocks:

          items:

            - description: Master AHB Clock

            - description: Slave AHB Clock



additionalProperties: false



examples: