diff --git a/Documentation/devicetree/bindings/serial/pl011.yaml b/Documentation/devicetree/bindings/serial/pl011.yaml
index 80af728598764a006e82a0523815ea88fc2b225a..9571041030b78d497638b95d0774f33e23a9df15 100644
--- a/Documentation/devicetree/bindings/serial/pl011.yaml
+++ b/Documentation/devicetree/bindings/serial/pl011.yaml
@@ -10,6 +10,7 @@ maintainers:
   - Rob Herring <robh@kernel.org>
 
 allOf:
+  - $ref: /schemas/arm/primecell.yaml#
   - $ref: serial.yaml#
 
 # Need a custom select here or 'arm,primecell' will match on lots of nodes