diff --git a/arch/arm64/boot/dts/rockchip/rk3588-evb3-lp5.dtsi b/arch/arm64/boot/dts/rockchip/rk3588-evb3-lp5.dtsi
index 02a708996c35..75678f8cfd97 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-evb3-lp5.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588-evb3-lp5.dtsi
@@ -769,7 +769,7 @@
 			hactive = <1200>;
 			vactive = <2000>;
 			hfront-porch = <31>;
-			hsync-len = <1>;
+			hsync-len = <4>;
 			hback-porch = <32>;
 			vfront-porch = <26>;
 			vsync-len = <2>;
diff --git a/arch/arm64/boot/dts/rockchip/rk3588s-evb2-lp5.dtsi b/arch/arm64/boot/dts/rockchip/rk3588s-evb2-lp5.dtsi
index d23dc43f195c..162f3cf2844b 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588s-evb2-lp5.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588s-evb2-lp5.dtsi
@@ -666,7 +666,7 @@
 			hactive = <1200>;
 			vactive = <2000>;
 			hfront-porch = <31>;
-			hsync-len = <1>;
+			hsync-len = <4>;
 			hback-porch = <32>;
 			vfront-porch = <26>;
 			vsync-len = <2>;