diff --git a/Documentation/devicetree/bindings/media/st,stm32mp25-csi.yaml b/Documentation/devicetree/bindings/media/st,stm32mp25-csi.yaml
index e9fa3cfea5d2..2ac7c9670c62 100644
--- a/Documentation/devicetree/bindings/media/st,stm32mp25-csi.yaml
+++ b/Documentation/devicetree/bindings/media/st,stm32mp25-csi.yaml
@@ -46,6 +46,9 @@ properties:
     minItems: 1
     maxItems: 2
 
+  power-domains:
+    maxItems: 1
+
   ports:
     $ref: /schemas/graph.yaml#/properties/ports