Re: [PATCH RFC 2/6] ASoC: dt-bindings: qcom,sm8250: Add clocks properties for I2S

[Konrad Dybcio]

On 10/6/25 8:37 PM, Neil Armstrong wrote:
> In order to describe the block and master clock of each I2S bus, add
> the first 5 I2S busses clock entries.
> 
> The names (primary, secondary, tertiarty, quaternary, quinary) uses
> the LPASS clock naming which were used for a long time on Qualcomm
> LPASS firmware interfaces.
> 
> Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
> ---

There's also a senary (6th) I2S bus instance, which there is no reason
not to describe

>  .../devicetree/bindings/sound/qcom,sm8250.yaml         | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml b/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml
> index 8ac91625dce5ccba5c5f31748c36296b12fac1a6..fd0d7a7ddc7b363a66e1e7bd72c7290666efb511 100644
> --- a/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml
> +++ b/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml
> @@ -64,6 +64,24 @@ properties:
>      $ref: /schemas/types.yaml#/definitions/string
>      description: User visible long sound card name
>  
> +  clocks:
> +    minItems: 2
> +    maxItems: 10
> +
> +  clock-names:
> +    minItems: 2
> +    items:
> +      - const: primary-mi2s    # Primary I2S Bit Clock
> +      - const: primary-mclk    # Primary I2S Master Clock
> +      - const: secondary-mi2s  # Secondary I2S Bit Clock
> +      - const: secondary-mclk  # Secondary I2S Master Clock
> +      - const: tertiary-mi2s   # Tertiary I2S Bit Clock
> +      - const: tertiary-mclk   # Tertiary I2S Master Clock
> +      - const: quaternary-mi2s # Quaternary I2S Bit Clock
> +      - const: quaternary-mclk # Quaternary I2S Master Clock
> +      - const: quinary-mi2s    # Quinary I2S Bit Clock
> +      - const: quinary-mclk    # Quinary I2S Master Clock

I think a single top-level comment saying "mclk" is the master
clock and the other one is a bit clock would suffice

Konrad