diff --git a/Documentation/devicetree/bindings/arm/rockchip.txt b/Documentation/devicetree/bindings/arm/rockchip.txt
index cc4ace6397abda9ffa0a7aa02a0fce76eff5c6e0..226ee9131078d1db794ca7ce1cb5be42bf14cd15 100644
--- a/Documentation/devicetree/bindings/arm/rockchip.txt
+++ b/Documentation/devicetree/bindings/arm/rockchip.txt
@@ -1,5 +1,8 @@
 Rockchip platforms device tree bindings
 ---------------------------------------
+- Asus Tinker board
+    Required root node properties:
+      - compatible = "asus,rk3288-tinker", "rockchip,rk3288";
 
 - Kylin RK3036 board:
     Required root node properties: