diff --git a/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt b/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt
index 7f94669e9ebe..3a51af82616d 100644
--- a/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt
+++ b/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt
@@ -4,6 +4,7 @@ Required properties:
 - compatible : should be "rockchip,<name>-tsadc"
    "rockchip,px30-tsadc":   found on PX30 SoCs
    "rockchip,rv1108-tsadc": found on RV1108 SoCs
+   "rockchip,rk1808-tsadc": found on RK1808 SoCs
    "rockchip,rk3228-tsadc": found on RK3228 SoCs
    "rockchip,rk3288-tsadc": found on RK3288 SoCs
    "rockchip,rk3328-tsadc": found on RK3328 SoCs