[PATCH v5 02/15] dt-bindings: mmc: cdns: Add AMD Pensando Elba SoC binding

[Rob Herring]

On Mon, Jun 13, 2022 at 12:56:45PM -0700, Brad Larson wrote:
> From: Brad Larson <blarson at amd.com>
> 
> AMD Pensando Elba ARM 64-bit SoC is integrated with this IP and
> explicitly controls byte-lane enables.
> 
> Signed-off-by: Brad Larson <blarson at amd.com>
> ---
>  .../devicetree/bindings/mmc/cdns,sdhci.yaml        | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
> index 4207fed62dfe..35bc4cf6f214 100644
> --- a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
> +++ b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
> @@ -13,10 +13,24 @@ maintainers:
>  allOf:
>    - $ref: mmc-controller.yaml
>  
> +  - if:
> +      properties:
> +        compatible:
> +          enum:
> +            - amd,pensando-elba-sd4hc
> +    then:
> +      properties:
> +        reg:
> +          items:
> +            - description: Cadence host controller registers
> +            - description: Byte-lane control register
> +          minItems: 2

This doesn't work. The if/then is additional constraints on the main 
section which says there is only 1 register region. The main section 
needs the above, but with 'minItems: 1'. Then the if/then should be:

if:
  properties:
    compatible:
      const: amd,pensando-elba-sd4hc
then:
  properties:
    reg:
      minItems: 2
else:
  properties:
    reg:
      maxItems: 1


> +
>  properties:
>    compatible:
>      items:
>        - enum:
> +          - amd,pensando-elba-sd4hc
>            - microchip,mpfs-sd4hc
>            - socionext,uniphier-sd4hc
>        - const: cdns,sd4hc
> -- 
> 2.17.1
> 
>