Commit 88a1ffc6 authored by Dumitru Ceclan's avatar Dumitru Ceclan Committed by Jonathan Cameron
Browse files

dt-bindings: adc: ad7173: add support for additional models 



Add support for: AD7172-2, AD7175-8, AD7177-2.
AD7172-4 does not feature an internal reference, check for external
 reference presence.

Signed-off-by: default avatarDumitru Ceclan <mitrutzceclan@gmail.com>
Reviewed-by: default avatarConor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240306110956.13167-2-mitrutzceclan@gmail.com


Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 620d1e6c

Documentation/devicetree/bindings/iio/adc/adi,ad7173.yaml

+36 −3
Original line number Diff line number Diff line
@@ -21,17 +21,23 @@ description: | 


  Datasheets for supported chips:

    https://www.analog.com/media/en/technical-documentation/data-sheets/AD7172-2.pdf

    https://www.analog.com/media/en/technical-documentation/data-sheets/AD7172-4.pdf

    https://www.analog.com/media/en/technical-documentation/data-sheets/AD7173-8.pdf

    https://www.analog.com/media/en/technical-documentation/data-sheets/AD7175-2.pdf

    https://www.analog.com/media/en/technical-documentation/data-sheets/AD7175-8.pdf

    https://www.analog.com/media/en/technical-documentation/data-sheets/AD7176-2.pdf

    https://www.analog.com/media/en/technical-documentation/data-sheets/AD7177-2.pdf



properties:

  compatible:

    enum:

      - adi,ad7172-2

      - adi,ad7172-4

      - adi,ad7173-8

      - adi,ad7175-2

      - adi,ad7175-8

      - adi,ad7176-2

      - adi,ad7177-2



  reg:

    maxItems: 1
@@ -136,8 +142,10 @@ patternProperties: 
          refout-avss: REFOUT/AVSS (Internal reference)

          avdd       : AVDD  /AVSS



          External reference ref2 only available on ad7173-8.

          If not specified, internal reference used.

          External reference ref2 only available on ad7173-8 and ad7172-4.

          Internal reference refout-avss not available on ad7172-4.



          If not specified, internal reference used (if available).

        $ref: /schemas/types.yaml#/definitions/string

        enum:

          - vref
@@ -157,12 +165,17 @@ required: 
allOf:

  - $ref: /schemas/spi/spi-peripheral-props.yaml#



  # Only ad7172-4, ad7173-8 and ad7175-8 support vref2

  # Other models have [0-3] channel registers

  - if:

      properties:

        compatible:

          not:

            contains:

              const: adi,ad7173-8

              enum:

                - adi,ad7172-4

                - adi,ad7173-8

                - adi,ad7175-8

    then:

      properties:

        vref2-supply: false
@@ -177,6 +190,26 @@ allOf: 
            reg:

              maximum: 3



  # Model ad7172-4 does not support internal reference

  - if:

      properties:

        compatible:

          contains:

            const: adi,ad7172-4

    then:

      patternProperties:

        "^channel@[0-9a-f]$":

          properties:

            reg:

              maximum: 7

            adi,reference-select:

              enum:

                - vref

                - vref2

                - avdd

          required:

            - adi,reference-select



  - if:

      anyOf:

        - required: [clock-names]