diff --git a/Documentation/devicetree/bindings/iio/proximity/semtech,sx9310.yaml b/Documentation/devicetree/bindings/iio/proximity/semtech,sx9310.yaml
index 5de0bb2180e6..775555d147bf 100644
--- a/Documentation/devicetree/bindings/iio/proximity/semtech,sx9310.yaml
+++ b/Documentation/devicetree/bindings/iio/proximity/semtech,sx9310.yaml
@@ -15,6 +15,9 @@ description: |
   Specifications about the devices can be found at:
   https://www.semtech.com/products/smart-sensing/sar-sensors/sx9310
 
+allOf:
+  - $ref: /schemas/iio/iio.yaml#
+
 properties:
   compatible:
     enum:
@@ -102,7 +105,7 @@ required:
   - reg
   - "#io-channel-cells"
 
-additionalProperties: false
+unevaluatedProperties: false
 
 examples:
   - |