Re: [PATCH V4 1/3] dt-bindings: mmc: imx-esdhc: Update compatible fallbacks

[Ulf Hansson]

On Sun, 10 Apr 2022 at 21:35, Adam Ford <aford173@xxxxxxxxx> 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.
>
> Mark the current state of the fallbacks as deprecated, and add the
> proper fallbacks so in the future, the deprecated combination can be
> removed and prevent any future devices from using the wrong fallback.
>
> Suggested-by: haibo.chen@xxxxxxx
> Signed-off-by: Adam Ford <aford173@xxxxxxxxx>

Applied for next, thanks!

Kind regards
Uffe


> ---
> V4:  Mark deprecated items with "deprecated: true" instead of a comment
> V3:  Add support for the interim fallback on imx8mn and imx8mp where
>      they both fallback to imx8mm, but keep the imx7d to prevent any
>      breakage.
>
> diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml
> index 7dbbcae9485c..58447095f000 100644
> --- a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml
> +++ b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml
> @@ -34,22 +34,46 @@ properties:
>            - fsl,imx6ull-usdhc
>            - fsl,imx7d-usdhc
>            - fsl,imx7ulp-usdhc
> +          - fsl,imx8mm-usdhc
>            - fsl,imxrt1050-usdhc
>            - nxp,s32g2-usdhc
> +      - items:
> +          - enum:
> +              - fsl,imx8mq-usdhc
> +          - const: fsl,imx7d-usdhc
> +      - items:
> +          - enum:
> +              - fsl,imx8mn-usdhc
> +              - fsl,imx8mp-usdhc
> +              - fsl,imx93-usdhc
> +              - fsl,imx8ulp-usdhc
> +          - const: fsl,imx8mm-usdhc
> +      - items:
> +          - enum:
> +              - fsl,imx8qm-usdhc
> +          - const: fsl,imx8qxp-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
> +        deprecated: true
>        - items:
>            - enum:
> -              - fsl,imx93-usdhc
> -              - fsl,imx8ulp-usdhc
> +              - fsl,imx8mn-usdhc
> +              - fsl,imx8mp-usdhc
>            - const: fsl,imx8mm-usdhc
> +          - const: fsl,imx7d-usdhc
> +        deprecated: true
> +      - items:
> +          - enum:
> +              - fsl,imx8qm-usdhc
> +          - const: fsl,imx8qxp-usdhc
> +          - const: fsl,imx7d-usdhc
> +        deprecated: true
>
>    reg:
>      maxItems: 1
> --
> 2.34.1
>