linux-kernel - Re: [PATCH v2] dt-bindings: mmc: fsl-imx-esdhc: Add some compatible fallbacks

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Message-ID: <20230113192700.GA2804258-robh@kernel.org>
Date:   Fri, 13 Jan 2023 13:27:00 -0600
From:   Rob Herring <robh@...nel.org>
To:     Andreas Kemnade <andreas@...nade.info>
Cc:     ulf.hansson@...aro.org, krzysztof.kozlowski+dt@...aro.org,
        shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
        festevam@...il.com, linux-imx@....com, linux-mmc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] dt-bindings: mmc: fsl-imx-esdhc: Add some compatible
 fallbacks

On Wed, Jan 11, 2023 at 09:46:33PM +0100, Andreas Kemnade wrote:
> Currently make dtbs_check shows lots of errors because imx*.dtsi does
> not use single compatibles but combinations of them.
> 
> Add fallbacks for imx6sll/ull which are useful for U-Boot.
> 
> This will significantly reduce noise on make dtbs_check.
> 
> Signed-off-by: Andreas Kemnade <andreas@...nade.info>
> ---
> Changes in v2:
> - allow only combinations with fallback compatible
> - reduce them to the cases where they are actually useful
> 
>  Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml
> index dc6256f04b42..be6caa25c57d 100644
> --- a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml
> +++ b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml
> @@ -29,14 +29,18 @@ properties:
>            - fsl,imx53-esdhc
>            - fsl,imx6q-usdhc
>            - fsl,imx6sl-usdhc
> -          - fsl,imx6sll-usdhc
>            - fsl,imx6sx-usdhc
> -          - fsl,imx6ull-usdhc
>            - fsl,imx7d-usdhc
>            - fsl,imx7ulp-usdhc
>            - fsl,imx8mm-usdhc
>            - fsl,imxrt1050-usdhc
>            - nxp,s32g2-usdhc
> +      - items:
> +          - const: fsl,imx6sll-usdhc
> +          - const: fsl,imx6sx-usdhc
> +      - items:
> +          - const: fsl,imx6ull-usdhc
> +          - const: fsl,imx6sx-usdhc

Can be simplified to:

- items:
    - enum:
        - fsl,imx6sll-usdhc
        - fsl,imx6ull-usdhc
    - const: fsl,imx6sx-usdhc