diff --git a/Documentation/devicetree/bindings/interrupt-controller/ti,sci-inta.yaml b/Documentation/devicetree/bindings/interrupt-controller/ti,sci-inta.yaml
index 1151518859bd..6a49d74b992a 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/ti,sci-inta.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/ti,sci-inta.yaml
@@ -85,6 +85,9 @@ properties:
     description:
       Array of phandles to DMA controllers where the unmapped events originate.
 
+  power-domains:
+    maxItems: 1
+
 required:
   - compatible
   - reg