diff --git a/Documentation/devicetree/bindings/dma/arm,pl330.yaml b/Documentation/devicetree/bindings/dma/arm,pl330.yaml
index decab185cf4d323ce7552dd05a8c3d9f8d28343e..2bec69b308f8665d64d86af4d9a28557022cfda0 100644
--- a/Documentation/devicetree/bindings/dma/arm,pl330.yaml
+++ b/Documentation/devicetree/bindings/dma/arm,pl330.yaml
@@ -55,6 +55,9 @@ properties:
 
   dma-coherent: true
 
+  power-domains:
+    maxItems: 1
+
   resets:
     minItems: 1
     maxItems: 2