diff --git a/Documentation/devicetree/bindings/media/rockchip-isp1.txt b/Documentation/devicetree/bindings/media/rockchip-isp1.txt
index 03651e08790f..9493fd489d6b 100644
--- a/Documentation/devicetree/bindings/media/rockchip-isp1.txt
+++ b/Documentation/devicetree/bindings/media/rockchip-isp1.txt
@@ -6,6 +6,7 @@ which contains image processing, scaling, and compression funcitons.
 
 Required properties:
 - compatible: value should be one of the following
+	"rockchip,rk1808-rkisp1";
 	"rockchip,rk3288-rkisp1";
 	"rockchip,rk3326-rkisp1";
 	"rockchip,rk3399-rkisp1";