diff --git a/Documentation/devicetree/bindings/ata/pata-common.yaml b/Documentation/devicetree/bindings/ata/pata-common.yaml
index 337ddf1113c4..4e867dd4d402 100644
--- a/Documentation/devicetree/bindings/ata/pata-common.yaml
+++ b/Documentation/devicetree/bindings/ata/pata-common.yaml
@@ -38,6 +38,7 @@ patternProperties:
       ID number 0 and the slave drive will have ID number 1. The PATA port
       nodes will be named "ide-port".
     type: object
+    additionalProperties: false
 
     properties:
       reg: