diff --git a/Documentation/devicetree/bindings/i2c/cdns,i2c-r1p10.yaml b/Documentation/devicetree/bindings/i2c/cdns,i2c-r1p10.yaml
index ff57c5416ebc..9f1d35ce1fe8 100644
--- a/Documentation/devicetree/bindings/i2c/cdns,i2c-r1p10.yaml
+++ b/Documentation/devicetree/bindings/i2c/cdns,i2c-r1p10.yaml
@@ -48,6 +48,9 @@ properties:
     default: 16
     enum: [2, 4, 8, 16, 32, 64, 128, 256]
 
+  power-domains:
+    maxItems: 1
+
 required:
   - compatible
   - reg