diff --git a/Documentation/devicetree/bindings/sound/renesas,rsnd.yaml b/Documentation/devicetree/bindings/sound/renesas,rsnd.yaml
index 12ccf29338d9..55e5213b90a1 100644
--- a/Documentation/devicetree/bindings/sound/renesas,rsnd.yaml
+++ b/Documentation/devicetree/bindings/sound/renesas,rsnd.yaml
@@ -101,17 +101,7 @@ properties:
 
   clock-names:
     description: List of necessary clock names.
-    minItems: 1
-    maxItems: 31
-    items:
-      oneOf:
-        - const: ssi-all
-        - pattern: '^ssi\.[0-9]$'
-        - pattern: '^src\.[0-9]$'
-        - pattern: '^mix\.[0-1]$'
-        - pattern: '^ctu\.[0-1]$'
-        - pattern: '^dvc\.[0-1]$'
-        - pattern: '^clk_(a|b|c|i)$'
+    # details are defined below
 
   ports:
     $ref: audio-graph-port.yaml#/definitions/port-base
@@ -288,6 +278,11 @@ required:
 
 allOf:
   - $ref: dai-common.yaml#
+
+  #--------------------
+  # reg/reg-names
+  #--------------------
+  # for Gen1
   - if:
       properties:
         compatible:
@@ -303,7 +298,15 @@ allOf:
               - scu
               - ssi
               - adg
-    else:
+  # for Gen2/Gen3
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - renesas,rcar_sound-gen2
+              - renesas,rcar_sound-gen3
+    then:
       properties:
         reg:
           minItems: 5
@@ -315,6 +318,55 @@ allOf:
               - ssiu
               - ssi
               - audmapp
+  # for Gen4
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: renesas,rcar_sound-gen4
+    then:
+      properties:
+        reg:
+          maxItems: 4
+        reg-names:
+          items:
+            enum:
+              - adg
+              - ssiu
+              - ssi
+              - sdmc
+
+  #--------------------
+  # clock-names
+  #--------------------
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: renesas,rcar_sound-gen4
+    then:
+      properties:
+        clock-names:
+          maxItems: 3
+          items:
+            enum:
+              - ssi.0
+              - ssiu.0
+              - clkin
+    else:
+      properties:
+        clock-names:
+          minItems: 1
+          maxItems: 31
+          items:
+            oneOf:
+              - const: ssi-all
+              - pattern: '^ssi\.[0-9]$'
+              - pattern: '^src\.[0-9]$'
+              - pattern: '^mix\.[0-1]$'
+              - pattern: '^ctu\.[0-1]$'
+              - pattern: '^dvc\.[0-1]$'
+              - pattern: '^clk_(a|b|c|i)$'
 
 unevaluatedProperties: false