diff --git a/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml b/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
index a3ba2186d6a1..10f9d3ad0d48 100644
--- a/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
+++ b/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
@@ -24,6 +24,7 @@ properties:
             - rockchip,rk3188-i2s
             - rockchip,rk3228-i2s
             - rockchip,rk3288-i2s
+            - rockchip,rk3308-i2s
             - rockchip,rk3328-i2s
             - rockchip,rk3366-i2s
             - rockchip,rk3368-i2s
@@ -47,14 +48,15 @@ properties:
       - const: i2s_hclk
 
   dmas:
-    items:
-      - description: TX DMA Channel
-      - description: RX DMA Channel
+    minItems: 1
+    maxItems: 2
 
   dma-names:
-    items:
-      - const: tx
+    oneOf:
       - const: rx
+      - items:
+        - const: tx
+        - const: rx
 
   power-domains:
     maxItems: 1