diff --git a/Documentation/devicetree/bindings/fsi/ibm,i2cr-fsi-master.yaml b/Documentation/devicetree/bindings/fsi/ibm,i2cr-fsi-master.yaml
index 442cecdc57cb1..e49ace3ca339f 100644
--- a/Documentation/devicetree/bindings/fsi/ibm,i2cr-fsi-master.yaml
+++ b/Documentation/devicetree/bindings/fsi/ibm,i2cr-fsi-master.yaml
@@ -26,7 +26,10 @@ required:
   - compatible
   - reg
 
-additionalProperties: false
+allOf:
+  - $ref: fsi-controller.yaml#
+
+unevaluatedProperties: false
 
 examples:
   - |