diff --git a/arch/arm64/boot/dts/amlogic/s7d_s905x5m_odroidc5.dts b/arch/arm64/boot/dts/amlogic/s7d_s905x5m_odroidc5.dts
index d6449a134..e49a20600 100644
--- a/arch/arm64/boot/dts/amlogic/s7d_s905x5m_odroidc5.dts
+++ b/arch/arm64/boot/dts/amlogic/s7d_s905x5m_odroidc5.dts
@@ -111,7 +111,7 @@
 		dmaheap_fb_reserved:heap-fb {
 			compatible = "shared-dma-pool";
 			reusable;
-			size = <0x0 0x7000000>;
+			size = <0x0 0xA800000>;
 			alignment = <0x0 0x400000>;
 		};
 		dmaheap_secure_reserved:heap-secure {