diff --git a/arch/arm64/boot/dts/google/gs101-isp.dtsi b/arch/arm64/boot/dts/google/gs101-isp.dtsi
index d224f1a3f766..88732c99d597 100644
--- a/arch/arm64/boot/dts/google/gs101-isp.dtsi
+++ b/arch/arm64/boot/dts/google/gs101-isp.dtsi
@@ -730,6 +730,8 @@
 			<&sysmmu_mcsc0>;
 		samsung,iommu-group = <&iommu_group_isp>;
 		samsung,tzmp = "true";
+
+		transaction-thread-priority = <99>;
 	};
 
 	lwis_mcsc: lwis_mcsc@1B760000 {