diff --git a/Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml
index 900f2f278914..5f3baa918ed7 100644
--- a/Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml
@@ -47,6 +47,9 @@ properties:

   interrupt-controller: true

+  '#interrupt-cells':
+    const: 2
+
 patternProperties:
   '-pins$':
     type: object