diff --git a/Documentation/devicetree/bindings/serial/samsung_uart.yaml b/Documentation/devicetree/bindings/serial/samsung_uart.yaml
index 4f98a3896b3a..97ec8a093bf3 100644
--- a/Documentation/devicetree/bindings/serial/samsung_uart.yaml
+++ b/Documentation/devicetree/bindings/serial/samsung_uart.yaml
@@ -79,9 +79,11 @@ required:
   - interrupts
   - reg
 
-additionalProperties: false
+unevaluatedProperties: false
 
 allOf:
+  - $ref: /schemas/serial.yaml#
+
   - if:
       properties:
         compatible: