diff --git a/Documentation/devicetree/bindings/sound/nuvoton,nau8822.yaml b/Documentation/devicetree/bindings/sound/nuvoton,nau8822.yaml
index 65105402a53d..edc8cc756980 100644
--- a/Documentation/devicetree/bindings/sound/nuvoton,nau8822.yaml
+++ b/Documentation/devicetree/bindings/sound/nuvoton,nau8822.yaml
@@ -21,6 +21,9 @@ properties:
   reg:
     maxItems: 1
 
+  "#sound-dai-cells":
+    const: 0
+
   nuvoton,spk-btl:
     description:
       If set, configure the two loudspeaker outputs as a Bridge Tied Load output
@@ -31,6 +34,9 @@ required:
   - compatible
   - reg
 
+allOf:
+  - $ref: dai-common.yaml#
+
 additionalProperties: false
 
 examples: