diff --git a/arch/arm/boot/dts/rk3288-android.dtsi b/arch/arm/boot/dts/rk3288-android.dtsi
index a13be09e3d18..0e2f374942bf 100644
--- a/arch/arm/boot/dts/rk3288-android.dtsi
+++ b/arch/arm/boot/dts/rk3288-android.dtsi
@@ -429,6 +429,7 @@
 	compatible = "rockchip,rga2";
 	clocks = <&cru ACLK_RGA>, <&cru HCLK_RGA>, <&cru SCLK_RGA>;
 	clock-names = "aclk_rga", "hclk_rga", "clk_rga";
+	dma-coherent;
 };
 
 &usb_otg {