diff --git a/qcom/sa8155-vm.dtsi b/qcom/sa8155-vm.dtsi
index 7ac17c043afc..ad26a37eb609 100644
--- a/qcom/sa8155-vm.dtsi
+++ b/qcom/sa8155-vm.dtsi
@@ -869,8 +869,7 @@
 
 		cnss_pci_iommu_group: cnss_pci_iommu_group {
 			qcom,iommu-dma-addr-pool = <0xa0000000 0x10000000>;
-			qcom,iommu-dma = "bypass";
-			qcom,iommu-pagetable = "coherent";
+			qcom,iommu-dma = "fastmap";
 			qcom,iommu-faults = "stall-disable", "no-CFRE",
 						"non-fatal";
 		};