linux-kernel - Re: [PATCH 1/2] dt-bindings: iio: adc: mcp3911: add support for the whole MCP39xx family

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Date:   Thu, 27 Jul 2023 12:18:48 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Marcus Folkesson <marcus.folkesson@...il.com>,
        Kent Gustavsson <kent@...oris.se>,
        Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc:     linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: iio: adc: mcp3911: add support for the
 whole MCP39xx family

On 27/07/2023 12:13, Marcus Folkesson wrote:
> Microchip does have many similar chips, add those to the compatible
> string as the driver support is extended.
> 
> The new supported chips are:
>   - microchip,mcp3910
>   - microchip,mcp3912
>   - microchip,mcp3913
>   - microchip,mcp3914
>   - microchip,mcp3918
>   - microchip,mcp3919
> 
> Signed-off-by: Marcus Folkesson <marcus.folkesson@...il.com>
> ---
>  .../devicetree/bindings/iio/adc/microchip,mcp3911.yaml      | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml b/Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml
> index f7b3fde4115a..06951ec5f5da 100644
> --- a/Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml
> +++ b/Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml
> @@ -18,7 +18,13 @@ description: |
>  properties:
>    compatible:
>      enum:
> +      - microchip,mcp3910
>        - microchip,mcp3911
> +      - microchip,mcp3912
> +      - microchip,mcp3913
> +      - microchip,mcp3914
> +      - microchip,mcp3918
> +      - microchip,mcp3919

Your driver suggests that they are all compatible, so maybe just use one
as fallback?

Best regards,
Krzysztof