diff --git a/Documentation/devicetree/bindings/iio/proximity/semtech,sx9324.yaml b/Documentation/devicetree/bindings/iio/proximity/semtech,sx9324.yaml
index b3aa2ebf9661..48f221463166 100644
--- a/Documentation/devicetree/bindings/iio/proximity/semtech,sx9324.yaml
+++ b/Documentation/devicetree/bindings/iio/proximity/semtech,sx9324.yaml
@@ -13,6 +13,9 @@ maintainers:
 description: |
   Semtech's SX9324 proximity sensor.
 
+allOf:
+  - $ref: /schemas/iio/iio.yaml#
+
 properties:
   compatible:
     const: semtech,sx9324
@@ -167,7 +170,7 @@ required:
   - reg
   - "#io-channel-cells"
 
-additionalProperties: false
+unevaluatedProperties: false
 
 examples:
   - |