Re: [PATCH v5 04/15] dt-bindings: spi: dw: Add AMD Pensando Elba SoC SPI Controller bindings

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On Mon, Jun 13, 2022 at 12:56:47PM -0700, Brad Larson wrote:
> From: Brad Larson <blarson@xxxxxxx>
> 
> The AMD Pensando Elba SoC has integrated the DW APB SPI Controller
> 
> Signed-off-by: Brad Larson <blarson@xxxxxxx>
> ---
>  Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
> index e25d44c218f2..2a55b947cffc 100644
> --- a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
> +++ b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
> @@ -73,6 +73,8 @@ properties:
>                - renesas,r9a06g032-spi # RZ/N1D
>                - renesas,r9a06g033-spi # RZ/N1S
>            - const: renesas,rzn1-spi   # RZ/N1

> +      - description: AMD Pensando Elba SoC SPI Controller
> +        const: amd,pensando-elba-spi

Not enough. The driver requires to have a phandle reference to the
Pensando System Controller. So the property like
"amd,pensando-elba-syscon" is also needed to be added to the DT schema
otherwise should the dt-schema tool correctly handle the
"unevaluatedProperties: false" setting (Rob says it isn't fully
supported at the moment), the dtbs_check procedure will fail on your
dts evaluation.

-Sergey

>  
>    reg:
>      minItems: 1
> -- 
> 2.17.1
> 



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