diff --git a/Documentation/devicetree/bindings/interrupt-controller/loongson,pch-pic.yaml b/Documentation/devicetree/bindings/interrupt-controller/loongson,pch-pic.yaml
index b7bc5cb1dff2..eee10abe9e48 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/loongson,pch-pic.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/loongson,pch-pic.yaml
@@ -29,6 +29,9 @@ properties:
     minimum: 0
     maximum: 192
 
+  '#address-cells':
+    const: 0
+
   interrupt-controller: true
 
   '#interrupt-cells':