diff --git a/Documentation/devicetree/bindings/sound/awinic,aw87390.yaml b/Documentation/devicetree/bindings/sound/awinic,aw87390.yaml
index ba9d8767c5d5..9c1baae767c4 100644
--- a/Documentation/devicetree/bindings/sound/awinic,aw87390.yaml
+++ b/Documentation/devicetree/bindings/sound/awinic,aw87390.yaml
@@ -15,12 +15,15 @@ description:
   sound quallity, which is a new high efficiency, low
   noise, constant large volume, 6th Smart K audio amplifier.
 
-allOf:
-  - $ref: dai-common.yaml#
-
 properties:
   compatible:
-    const: awinic,aw87390
+    oneOf:
+      - enum:
+          - awinic,aw87390
+      - items:
+          - enum:
+              - anbernic,rgds-amp
+          - const: awinic,aw87391
 
   reg:
     maxItems: 1
@@ -40,10 +43,31 @@ required:
   - compatible
   - reg
   - "#sound-dai-cells"
-  - awinic,audio-channel
 
 unevaluatedProperties: false
 
+allOf:
+  - $ref: dai-common.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - awinic,aw87390
+    then:
+      required:
+        - awinic,audio-channel
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - anbernic,rgds-amp
+    then:
+      properties:
+        vdd-supply: true
+
 examples:
   - |
     i2c {