diff --git a/Documentation/devicetree/bindings/serial/samsung_uart.yaml b/Documentation/devicetree/bindings/serial/samsung_uart.yaml
index 1a1f991d5364..d12018aaac9b 100644
--- a/Documentation/devicetree/bindings/serial/samsung_uart.yaml
+++ b/Documentation/devicetree/bindings/serial/samsung_uart.yaml
@@ -48,6 +48,7 @@ properties:
           - const: samsung,exynos850-uart
       - items:
           - enum:
+              - axis,artpec9-uart
               - samsung,exynos7870-uart
           - const: samsung,exynos8895-uart