Re: [PATCH v1 1/2] spi: dt-bindings: cadence: add soc-specific compatible strings for zynqmp and versal-net

[Michal Simek <michal.simek@amd.com>]

On 10/1/25 20:31, Conor Dooley wrote:
> From: Conor Dooley <conor.dooley@microchip.com>
> 
> When the binding for the Cadence spi controller was written, a dedicated
> compatible was added for the zynq device. Later when zynqmp and
> versal-net, which also use this spi controller IP, were added they did
> not receive soc-specific compatibles. Add them now, with a fallback to
> the existing compatible for the r1p6 version of the IP so that there
> will be no functional change. Retain the r1p6 in the string, to match
> what was done for zynq.
> 
> Disallow the cdns,spi-r1p6 compatible in isolation to "encourage" people
> to actually add soc-specific compatible strings in the future.
> 
> Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
> ---
> CC: Jun Guo <Jun.Guo@cixtech.com>
> CC: Mark Brown <broonie@kernel.org>
> CC: Rob Herring <robh@kernel.org>
> CC: Krzysztof Kozlowski <krzk+dt@kernel.org>
> CC: Conor Dooley <conor+dt@kernel.org>
> CC: Michal Simek <michal.simek@amd.com>
> CC: linux-spi@vger.kernel.org
> CC: devicetree@vger.kernel.org
> CC: linux-kernel@vger.kernel.org
> CC: linux-arm-kernel@lists.infradead.org
> ---
>   .../devicetree/bindings/spi/spi-cadence.yaml          | 11 ++++++++---
>   1 file changed, 8 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/spi/spi-cadence.yaml b/Documentation/devicetree/bindings/spi/spi-cadence.yaml
> index 8de96abe9da1..27414b78d61d 100644
> --- a/Documentation/devicetree/bindings/spi/spi-cadence.yaml
> +++ b/Documentation/devicetree/bindings/spi/spi-cadence.yaml
> @@ -14,9 +14,14 @@ allOf:
>   
>   properties:
>     compatible:
> -    enum:
> -      - cdns,spi-r1p6
> -      - xlnx,zynq-spi-r1p6
> +    oneOf:
> +      - enum:
> +          - xlnx,zynq-spi-r1p6
> +      - items:
> +          - enum:
> +              - xlnx,zynqmp-spi-r1p6
> +              - xlnx,versal-net-spi-r1p6
> +          - const: cdns,spi-r1p6
>   
>     reg:
>       maxItems: 1

Acked-by: Michal Simek <michal.simek@amd.com>

Thanks,
Michal