diff --git a/arch/arm64/boot/dts/amlogic/t7c_a311d2_an400_debian.dts b/arch/arm64/boot/dts/amlogic/t7c_a311d2_an400_debian.dts
index b210f6ec4..0721a854e 100644
--- a/arch/arm64/boot/dts/amlogic/t7c_a311d2_an400_debian.dts
+++ b/arch/arm64/boot/dts/amlogic/t7c_a311d2_an400_debian.dts
@@ -169,7 +169,7 @@
 			compatible = "shared-dma-pool";
 			reusable;
 			/* 1920x1080x4x6+3840x2160x4x3 round up 4M align */
-			size = <0x0 0x12000000>;
+			size = <0x0 0x20000000>;
 			alignment = <0x0 0x400000>;
 			alloc-ranges = <0x0 0x0 0x0 0xe0000000>;
 		};