linux-kernel - Re: [PATCH 2/6] dt-bindings: mmc: cdns: match MPFS MMC/SDHCI controller

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Date:   Tue, 24 Aug 2021 09:33:49 -0500
From:   Rob Herring <robh@...nel.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Cc:     Ulf Hansson <ulf.hansson@...aro.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Atish Patra <atish.patra@....com>,
        Yash Shah <yash.shah@...ive.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Piotr Sroka <piotrs@...ence.com>, linux-mmc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-riscv@...ts.infradead.org
Subject: Re: [PATCH 2/6] dt-bindings: mmc: cdns: match MPFS MMC/SDHCI
 controller

On Thu, Aug 19, 2021 at 05:44:32PM +0200, Krzysztof Kozlowski wrote:
> The Microchip MPFS Icicle Kit uses Cadence SD/SDIO/eMMC Host Controller
> without any additional vendor compatible:

I think the lack of vendor compatible is the error here. Experience has 
shown that vendor specific compatibles are needed for licensed IP.

> 
>   arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dt.yaml: mmc@...08000: compatible:0: 'cdns,sd4hc' is not one of ['socionext,uniphier-sd4hc']
>   arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dt.yaml: mmc@...08000: compatible: ['cdns,sd4hc'] is too short
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
> ---
>  Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
> index af7442f73881..0489aa92cb54 100644
> --- a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
> +++ b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
> @@ -15,9 +15,11 @@ allOf:
>  
>  properties:
>    compatible:
> -    items:
> -      - enum:
> -          - socionext,uniphier-sd4hc
> +    oneOf:
> +      - items:
> +          - enum:
> +              - socionext,uniphier-sd4hc
> +          - const: cdns,sd4hc
>        - const: cdns,sd4hc
>  
>    reg:
> -- 
> 2.30.2
> 
>