diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt
index 80c22204ce7c..5912216a7a83 100644
--- a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt
+++ b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt
@@ -4,6 +4,7 @@
 Required properties:
 - compatible: Should be one of the following.
   - "rockchip,px30-dfi" - for PX30 SoCs.
+  - "rockchip,rk1808-dfi" - for RK1808 SoCs.
   - "rockchip,rk3128-dfi" - for RK3128 SoCs.
   - "rockchip,rk3288-dfi" - for RK3288 SoCs.
   - "rockchip,rk3328-dfi" - for RK3328 SoCs.