diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi b/arch/arm64/boot/dts/qcom/sm8450.dtsi
index fd2d5648b92a..1f31d3eea4f0 100644
--- a/arch/arm64/boot/dts/qcom/sm8450.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8450.dtsi
@@ -5104,7 +5104,7 @@ intc: interrupt-controller@17100000 {
 
 			gic_its: msi-controller@17140000 {
 				compatible = "arm,gic-v3-its";
-				reg = <0x0 0x17140000 0x0 0x20000>;
+				reg = <0x0 0x17140000 0x0 0x40000>;
 				msi-controller;
 				#msi-cells = <1>;
 			};