diff --git a/arch/arm64/boot/dts/rockchip/rk3308-evb-audio-v10-display-rgb.dts b/arch/arm64/boot/dts/rockchip/rk3308-evb-audio-v10-display-rgb.dts
index c6592a89a03a..3ba7fd02b13d 100644
--- a/arch/arm64/boot/dts/rockchip/rk3308-evb-audio-v10-display-rgb.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3308-evb-audio-v10-display-rgb.dts
@@ -97,7 +97,7 @@
 		cma {
 			compatible = "shared-dma-pool";
 			reusable;
-			size = <0x0 0x800000>;
+			size = <0x0 0x1000000>;
 			linux,cma-default;
 		};
 	};