The sound-dai-cells property is used, e.g. in rk356x.dtsi

Signed-off-by: Manuel Traut <manut@mecka.net>
---
 .../devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml        | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml
index 7e59dee15a5f..43250255fb6f 100644
--- a/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml
@@ -94,6 +94,9 @@ properties:
       - const: default
       - const: unwedge
 
+  '#sound-dai-cells':
+    const: 0
+
   ports:
     $ref: /schemas/graph.yaml#/properties/ports
 
@@ -145,6 +148,7 @@ examples:
         interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
         clocks = <&cru  PCLK_HDMI_CTRL>, <&cru SCLK_HDMI_HDCP>;
         clock-names = "iahb", "isfr";
+        #sound-dai-cells = <0>;
 
         ports {
             port {

-- 
2.43.0

On 22/12/2023 12:05, Manuel Traut wrote:
> The sound-dai-cells property is used, e.g. in rk356x.dtsi

Better to see here rather explanation why dai cells are needed, unless
you aren't sure and just want to fix warning.

> 
> Signed-off-by: Manuel Traut <manut@mecka.net>
> ---
>  .../devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml        | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml
> index 7e59dee15a5f..43250255fb6f 100644
> --- a/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml
> +++ b/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml
> @@ -94,6 +94,9 @@ properties:
>        - const: default
>        - const: unwedge
>  

Please add $ref to dai-common.yaml in allOf.

	
> +  '#sound-dai-cells':
> +    const: 0
> +

Best regards,
Krzysztof