Re: [PATCH 03/11] dt-bindings: mmc: Add Pensando Elba SoC binding

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Hi Arnd,

On Wed, Apr 6, 2022 at 11:31 PM Arnd Bergmann <arnd@xxxxxxxx> wrote:
>
> On Thu, Apr 7, 2022 at 1:36 AM Brad Larson <brad@xxxxxxxxxxx> wrote:
> >
> > --- a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
> > +++ b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
> > @@ -19,10 +19,12 @@ properties:
> >        - enum:
> >            - microchip,mpfs-sd4hc
> >            - socionext,uniphier-sd4hc
> > +          - pensando,elba-sd4hc
> >        - const: cdns,sd4hc
> >
> >    reg:
> > -    maxItems: 1
> > +    minItems: 1
> > +    maxItems: 2
> >
>
> Shouldn't the binding describe what the register areas are? If there
> is only one of them, it is fairly clear, but when you have the choice
> between one and two, it gets ambiguous, and there is a risk that
> another SoC might have a different register area in the second entry,
> making it incompatible.

Thanks for the review.  Changing this to allOf:if:then in updated
patchset.  The second item is particular to Elba SoC.

Regards,
Brad



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