Re: [PATCH v2 2/4] ASoC: dt-bindings: stm32: i2s: allow additional properties.

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On Thu, Nov 25, 2021 at 03:40:51PM +0100, Olivier Moysan wrote:
> The STM32 SPI peripheral supports both SPI and I2S protocols.
> In the SoC device tree the node describes the peripheral as an
> SPI peripheral by default. This default configuration can be
> overwritten in board device tree to use the IP as an I2S peripheral.
> In this case the address-cells and size-cells properties from
> SoC DT SPI node should not be checked against STM32 I2S bindings.
> Set additionalProperties to "true" to allow these extra properties.
> 
> Signed-off-by: Olivier Moysan <olivier.moysan@xxxxxxxxxxx>
> ---
>  Documentation/devicetree/bindings/sound/st,stm32-i2s.yaml | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/sound/st,stm32-i2s.yaml b/Documentation/devicetree/bindings/sound/st,stm32-i2s.yaml
> index 64b70ac539f8..33ba15363c0f 100644
> --- a/Documentation/devicetree/bindings/sound/st,stm32-i2s.yaml
> +++ b/Documentation/devicetree/bindings/sound/st,stm32-i2s.yaml
> @@ -73,7 +73,7 @@ required:
>    - dmas
>    - dma-names
>  
> -additionalProperties: false
> +additionalProperties: true

This is only allowed for schemas that are incomplete collections of 
properties such as common bindings.

Rob



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