Re: [PATCH v3 5/7] dt-bindings: sound: qcom,sm8250: allow TDM slot properties

[Rob Herring]

On Tue, Jul 7, 2026 at 2:01 PM Prasad Kumpatla
<prasad.kumpatla@xxxxxxxxxxxxxxxx> wrote:
>
> Allow the standard TDM slot properties in CPU and codec endpoint
> nodes.
>
> Some audio backends operate in TDM mode and require the slot
> configuration to be described in Devicetree. The common TDM binding
> defines dai-tdm-slot-num, dai-tdm-slot-width,
> dai-tdm-slot-tx-mask and dai-tdm-slot-rx-mask for this purpose.
>
> Permit these standard properties in endpoint nodes so TDM-capable
> links can describe their slot configuration using the common binding.
>
> Signed-off-by: Prasad Kumpatla <prasad.kumpatla@xxxxxxxxxxxxxxxx>
> ---
>  .../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 15f38622b..a45a1a00f 100644
> --- a/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml
> +++ b/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml
> @@ -84,12 +84,21 @@ patternProperties:
>        cpu:
>          description: Holds subnode which indicates cpu dai.
>          type: object
> +        allOf:
> +          - $ref: "tdm-slot.yaml#"

Only 1 entry, you don't need 'allOf'.

Rob