diff --git a/Documentation/devicetree/bindings/usb/samsung,exynos-usb2.yaml b/Documentation/devicetree/bindings/usb/samsung,exynos-usb2.yaml
index fbf07d6e707a..ef42c6fce73c 100644
--- a/Documentation/devicetree/bindings/usb/samsung,exynos-usb2.yaml
+++ b/Documentation/devicetree/bindings/usb/samsung,exynos-usb2.yaml
@@ -62,6 +62,7 @@ required:
   - interrupts
   - phys
   - phy-names
+  - reg
 
 allOf:
   - if: