diff --git a/qcom/kalama-cdp.dtsi b/qcom/kalama-cdp.dtsi
index d03be5e2..16124d57 100644
--- a/qcom/kalama-cdp.dtsi
+++ b/qcom/kalama-cdp.dtsi
@@ -24,7 +24,7 @@
 	resets = <&gcc GCC_SDCC2_BCR>;
 	reset-names = "core_reset";
 
-	qcom,iommu-dma = "bypass";
+	qcom,iommu-dma = "fastmap";
 	qcom,uses_level_shifter;
 };
 
diff --git a/qcom/kalama-mtp.dtsi b/qcom/kalama-mtp.dtsi
index f05fa9c3..374ea05e 100644
--- a/qcom/kalama-mtp.dtsi
+++ b/qcom/kalama-mtp.dtsi
@@ -24,7 +24,7 @@
 	resets = <&gcc GCC_SDCC2_BCR>;
 	reset-names = "core_reset";
 
-	qcom,iommu-dma = "bypass";
+	qcom,iommu-dma = "fastmap";
 	qcom,uses_level_shifter;
 };
 
diff --git a/qcom/kalama-qrd.dtsi b/qcom/kalama-qrd.dtsi
index 14b967d2..9898be0b 100644
--- a/qcom/kalama-qrd.dtsi
+++ b/qcom/kalama-qrd.dtsi
@@ -24,7 +24,7 @@
 	resets = <&gcc GCC_SDCC2_BCR>;
 	reset-names = "core_reset";
 
-	qcom,iommu-dma = "bypass";
+	qcom,iommu-dma = "fastmap";
 	qcom,uses_level_shifter;
 };