diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index 8b920ac4bd75..88979ebdd380 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -572,7 +572,7 @@ tsadc: tsadc@ff280000 {
 		clocks = <&cru SCLK_TSADC>, <&cru PCLK_TSADC>;
 		clock-names = "tsadc", "apb_pclk";
 		assigned-clocks = <&cru SCLK_TSADC>;
-		assigned-clock-rates = <10000>;
+		assigned-clock-rates = <5000>;
 		resets = <&cru SRST_TSADC>;
 		reset-names = "tsadc-apb";
 		pinctrl-names = "init", "default", "sleep";