Subject: Re: [PATCH 2/3] dt-bindings: mfd: add "fsl,ls1028a-qds-qixis-i2c" compatible to sl28cpld

From: Rob Herring <[email-masked]>
Date: Fri, 11 Feb 2022 07:01:42 -0600

On Thu, Jan 27, 2022 at 07:21:04PM +0200, Vladimir Oltean wrote:
> The LS1028A-QDS QIXIS FPGA has no problem working with the
> simple-mfd-i2c.c driver, so extend the list of compatible strings to
> include that part.
> 
> Signed-off-by: Vladimir Oltean <[email-masked]>
> ---
>  Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml b/Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml
> index eb3b43547cb6..8c1216eb36ee 100644
> --- a/Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml
> +++ b/Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml
> @@ -16,7 +16,9 @@ description: |
>  
>  properties:
>    compatible:
> -    const: kontron,sl28cpld
> +    enum:
> +      - fsl,ls1028a-qds-qixis-i2c
> +      - kontron,sl28cpld

Is there some relationship between these besides happening to use the 
same driver? Sharing a generic driver is not a reason to have the same 
binding doc.

Your DT has a mux-controller which is undocuemnted in this binding.

Rob