linux-kernel - Re: [PATCH v3 03/11] dt-bindings: mmc: Add Pensando Elba SoC binding

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Date:   Tue, 26 Oct 2021 13:10:54 -0500
From:   Rob Herring <robh@...nel.org>
To:     Brad Larson <brad@...sando.io>
Cc:     linux-arm-kernel@...ts.infradead.org, arnd@...db.de,
        linus.walleij@...aro.org, bgolaszewski@...libre.com,
        broonie@...nel.org, fancer.lancer@...il.com,
        adrian.hunter@...el.com, ulf.hansson@...aro.org, olof@...om.net,
        linux-gpio@...r.kernel.org, linux-spi@...r.kernel.org,
        linux-mmc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 03/11] dt-bindings: mmc: Add Pensando Elba SoC binding

On Sun, Oct 24, 2021 at 06:51:48PM -0700, Brad Larson wrote:
> Pensando Elba ARM 64-bit SoC is integrated with this IP and
> explicitly controls byte-lane enables resulting in an additional
> reg property resource.
> 
> Signed-off-by: Brad Larson <brad@...sando.io>
> ---
>  .../devicetree/bindings/mmc/cdns,sdhci.yaml         | 13 ++++++++-----
>  1 file changed, 8 insertions(+), 5 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
> index af7442f73881..6c68b7b5abec 100644
> --- a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
> +++ b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
> @@ -15,13 +15,16 @@ allOf:
>  
>  properties:
>    compatible:
> -    items:
> -      - enum:
> -          - socionext,uniphier-sd4hc
> -      - const: cdns,sd4hc
> +    oneOf:
> +      - items:
> +        - enum:
> +            - socionext,uniphier-sd4hc
> +            - pensando,elba-emmc
> +        - const: cdns,sd4hc
>  
>    reg:
> -    maxItems: 1
> +    minItems: 1
> +    maxItems: 2

If there is more than 1, then you need to describe what each entry is.

>  
>    interrupts:
>      maxItems: 1
> -- 
> 2.17.1
> 
>