linux-kernel - Re: [PATCH 1/5] dt-bindings: mmc: imx-esdhc: Update compatible fallbacks

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Date:   Thu, 31 Mar 2022 15:04:28 +0200
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     Adam Ford <aford173@...il.com>
Cc:     linux-mmc@...r.kernel.org, haibo.chen@....com,
        aford@...conembedded.com, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <Kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/5] dt-bindings: mmc: imx-esdhc: Update compatible fallbacks

On Sun, 27 Mar 2022 at 14:39, Adam Ford <aford173@...il.com> wrote:
>
> The SDHC controller in the imx8mn and imx8mp have the same controller
> as the imx8mm which is slightly different than that of the imx7d.
> Using the fallback of the imx8mm enables the controllers to support
> HS400-ES which is not available on the imx7d. After discussion with NXP,
> it turns out that the imx8qm should fall back to the imx8qxp, because
> those have some additional flags not present in the imx8mm.
>
> Suggested-by: haibo.chen@....com
> Signed-off-by: Adam Ford <aford173@...il.com>

I didn't quite follow all the discussions on patch3 - and whether that
may affect the binding. Anyway, I assume you will send a new version.
If not, please tell and will pick this up.

Kind regards
Uffe


> ---
> V2:  Added suggested-by note and imx8qxp updates.
> ---
>  .../devicetree/bindings/mmc/fsl-imx-esdhc.yaml   | 16 +++++++++-------
>  1 file changed, 9 insertions(+), 7 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml
> index 7dbbcae9485c..1427e9b5a6ec 100644
> --- a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml
> +++ b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml
> @@ -34,23 +34,25 @@ properties:
>            - fsl,imx6ull-usdhc
>            - fsl,imx7d-usdhc
>            - fsl,imx7ulp-usdhc
> +          - fsl,imx8mm-usdhc
> +          - fsl,imx8qxp-usdhc
>            - fsl,imxrt1050-usdhc
>            - nxp,s32g2-usdhc
>        - items:
>            - enum:
> -              - fsl,imx8mm-usdhc
> -              - fsl,imx8mn-usdhc
> -              - fsl,imx8mp-usdhc
>                - fsl,imx8mq-usdhc
> -              - fsl,imx8qm-usdhc
> -              - fsl,imx8qxp-usdhc
>            - const: fsl,imx7d-usdhc
>        - items:
>            - enum:
> -              - fsl,imx93-usdhc
> +              - fsl,imx8mn-usdhc
> +              - fsl,imx8mp-usdhc
>                - fsl,imx8ulp-usdhc
> +              - fsl,imx93-usdhc
>            - const: fsl,imx8mm-usdhc
> -
> +      - items:
> +          - enum:
> +              - fsl,imx8qm-usdhc
> +          - const: fsl,imx8qxp-usdhc
>    reg:
>      maxItems: 1
>
> --
> 2.34.1
>