diff --git a/Documentation/devicetree/bindings/media/rockchip,vdec.yaml b/Documentation/devicetree/bindings/media/rockchip,vdec.yaml
index e28e5c63735f..d0bce8bfb1b1 100644
--- a/Documentation/devicetree/bindings/media/rockchip,vdec.yaml
+++ b/Documentation/devicetree/bindings/media/rockchip,vdec.yaml
@@ -126,6 +126,8 @@ allOf:
           minItems: 5
         reset-names:
           minItems: 5
+      required:
+        - reg-names
     else:
       properties:
         reg: