diff --git a/arch/arm64/boot/dts/rockchip/rk3528.dtsi b/arch/arm64/boot/dts/rockchip/rk3528.dtsi
index 630cc81f04c5..5a64a8012b0b 100644
--- a/arch/arm64/boot/dts/rockchip/rk3528.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3528.dtsi
@@ -1505,6 +1505,8 @@
 			 <&cru CLK_CEC_HDMI>,
 			 <&inno_hdmiphy_clk>;
 		clock-names = "iahb", "isfr", "cec", "dclk_vp0";
+		ddc-i2c-scl-high-time-ns = <9625>;
+		ddc-i2c-scl-low-time-ns = <10000>;
 		reg-io-width = <4>;
 		rockchip,grf = <&grf>;
 		pinctrl-names = "default", "idle";