diff --git a/arch/arm64/boot/dts/rockchip/rk3566-eink.dtsi b/arch/arm64/boot/dts/rockchip/rk3566-eink.dtsi
index 913c9d170a8e..ef68a060af2e 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-eink.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3566-eink.dtsi
@@ -14,7 +14,7 @@
 		};
 
 		display_reserved: framebuffer@10900000 {
-			reg = <0x0 0x10900000 0x0 0x3300000>;
+			reg = <0x0 0x10900000 0x0 0x3800000>;
 		};
 	};