Re: [PATCH v9 02/15] dt-bindings: mmc: cdns: Add AMD Pensando Elba SoC

[Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>]

On 19/01/2023 04:51, Brad Larson wrote:
> AMD Pensando Elba ARM 64-bit SoC is integrated with this IP and
> explicitly controls byte-lane enables.
> 
> Signed-off-by: Brad Larson <blarson@xxxxxxx>
> 
> ---
> 
> Changes since v6:
> - Add reset-names and resets properties
> - Add if/then on property amd,pensando-elba-sd4hc to set reg property
>   values for minItems and maxItems
> 
> ---
>  .../devicetree/bindings/mmc/cdns,sdhci.yaml   | 28 ++++++++++++++++++-
>  1 file changed, 27 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
> index 8b1a0fdcb5e3..f7dd6f990f96 100644
> --- a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
> +++ b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
> @@ -16,12 +16,14 @@ properties:
>    compatible:
>      items:
>        - enum:
> +          - amd,pensando-elba-sd4hc
>            - microchip,mpfs-sd4hc
>            - socionext,uniphier-sd4hc
>        - const: cdns,sd4hc
>  
>    reg:
> -    maxItems: 1
> +    minItems: 1
> +    maxItems: 2
>  
>    interrupts:
>      maxItems: 1
> @@ -111,12 +113,36 @@ properties:
>      minimum: 0
>      maximum: 0x7f
>  
> +  reset-names:
> +    items:
> +      - const: hw
> +
> +  resets:
> +    description:
> +      optional. phandle to the system reset controller with line index
> +      for mmc hw reset line if exists.
> +    maxItems: 1
> +
>  required:
>    - compatible
>    - reg
>    - interrupts
>    - clocks
>  
> +if:
> +  properties:
> +    compatible:
> +      const: amd,pensando-elba-sd4hc

BTW, this probably won't even work and that's the answer why you added
fake maxItems: 2... This should make you think about the bug. You must
use contains.

Best regards,
Krzysztof