Re: [PATCH v2 1/2] dt-bindings: iio: adc: Document Renesas RZ/G2UL ADC

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On Thu,  5 May 2022 19:40:36 +0100
Biju Das <biju.das.jz@xxxxxxxxxxxxxx> wrote:

> Document Renesas RZ/G2UL ADC bindings. RZ/G2UL ADC is almost identical
> to RZ/G2L, but it has 2 analog input channels compared to 8 channels
> on the RZ/G2L.
> 
> Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
> ---
> v1->v2:
>  * Started using generic compatible for RZ/G2UL and added SoC specific validation
>    for channels.
> ---
>  .../bindings/iio/adc/renesas,rzg2l-adc.yaml   | 45 ++++++++++++++++---
>  1 file changed, 38 insertions(+), 7 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/iio/adc/renesas,rzg2l-adc.yaml b/Documentation/devicetree/bindings/iio/adc/renesas,rzg2l-adc.yaml
> index d66c24cae1e1..2da3538a3543 100644
> --- a/Documentation/devicetree/bindings/iio/adc/renesas,rzg2l-adc.yaml
> +++ b/Documentation/devicetree/bindings/iio/adc/renesas,rzg2l-adc.yaml
> @@ -19,6 +19,7 @@ properties:
>    compatible:
>      items:
>        - enum:
> +          - renesas,r9a07g043-adc   # RZ/G2UL
>            - renesas,r9a07g044-adc   # RZ/G2L
>            - renesas,r9a07g054-adc   # RZ/V2L
>        - const: renesas,rzg2l-adc
> @@ -74,18 +75,48 @@ patternProperties:
>        Represents the external channels which are connected to the ADC.
>  
>      properties:
> -      reg:
> -        description: |
> -          The channel number. It can have up to 8 channels numbered from 0 to 7.
Leave 
	   description: | 
	     The channel number.
here.  The rest of this description is obvious from the below schema so doesn't
need to also be in the descriptions.

> -        items:
> -          - minimum: 0
> -            maximum: 7
> -
> +      reg: true
>      required:
>        - reg
>  
>      additionalProperties: false
>  
> +allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: renesas,r9a07g043-adc
> +    then:
> +      patternProperties:
> +        "^channel@[0-7]$":
> +          type: object
> +          properties:
> +            reg:
> +              description: |
> +                The channel number. It can have up to 2 channels numbered from 0 to 1.
> +              items:
> +                - minimum: 0
> +                  maximum: 1
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - renesas,r9a07g044-adc
> +              - renesas,r9a07g054-adc
> +    then:
> +      patternProperties:
> +        "^channel@[0-7]$":
> +          type: object
> +          properties:
> +            reg:
> +              description: |
> +                The channel number. It can have up to 8 channels numbered from 0 to 7.
> +              items:
> +                - minimum: 0
> +                  maximum: 7
> +
>  additionalProperties: false
>  
>  examples:




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