diff --git a/arch/arm64/boot/dts/rockchip/rk3399-fb.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-fb.dtsi
index 047f99a590bb..65461e7f46dc 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-fb.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-fb.dtsi
@@ -137,7 +137,7 @@ vopb_rk_fb: vop-rk-fb@ff900000 {
 		reset-names = "axi", "ahb", "dclk";
 		rockchip,grf = <&grf>;
 		rockchip,pwr18 = <0>;
-		rockchip,iommu-enabled = <0>;
+		rockchip,iommu-enabled = <1>;
 		power_ctr: power_ctr {
 		/*rockchip,debug = <0>;
 		lcd_en: lcd-en {
@@ -181,7 +181,7 @@ vopl_rk_fb: vop-rk-fb@ff8f0000 {
 		reset-names = "axi", "ahb", "dclk";
 		rockchip,grf = <&grf>;
 		rockchip,pwr18 = <0>;
-		rockchip,iommu-enabled = <0>;
+		rockchip,iommu-enabled = <1>;
 		status = "disabled";
 	};