diff --git a/arch/arm64/boot/dts/rockchip/rk3368-android.dtsi b/arch/arm64/boot/dts/rockchip/rk3368-android.dtsi
index 8339cca08cb0..5f55efc1bf43 100644
--- a/arch/arm64/boot/dts/rockchip/rk3368-android.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3368-android.dtsi
@@ -70,7 +70,7 @@
 		linux,cma {
 			compatible = "shared-dma-pool";
 			reusable;
-			size = <0x0 0x8000000>;
+			size = <0x0 0x2000000>;
 			linux,cma-default;
 		};
 	};