diff --git a/qcom/tuna-usb.dtsi b/qcom/tuna-usb.dtsi
index 88fa476e..c75fe5a6 100644
--- a/qcom/tuna-usb.dtsi
+++ b/qcom/tuna-usb.dtsi
@@ -12,8 +12,8 @@
 		reg = <0xa600000 0x100000>;
 		reg-names = "core_base";
 
-		#address-cells = <1>;
-		#size-cells = <1>;
+		#address-cells = <2>;
+		#size-cells = <2>;
 		ranges;
 
 		USB3_GDSC-supply = <&gcc_usb30_prim_gdsc>;
@@ -35,13 +35,13 @@
 		qcom,core-clk-rate-hs = <66666667>;
 		qcom,core-clk-rate-disconnected = <133333333>;
 
-		dwc3@a600000 {
+		dwc3_0: dwc3@a600000 {
 			compatible = "snps,dwc3";
-			reg = <0xa600000 0xd93c>;
+			reg = <0x0 0xa600000 0x0 0xd93c>;
 
 			iommus = <&apps_smmu 0x40 0x0>;
 			qcom,iommu-dma = "atomic";
-			qcom,iommu-dma-addr-pool = <0x90000000 0x60000000>;
+			memory-region = <&dwc3_mem_region>;
 			dma-coherent;
 
 			interrupts = <GIC_SPI 133 IRQ_TYPE_LEVEL_HIGH>;
@@ -59,4 +59,10 @@
 			usb-role-switch;
 		};
 	};
+
+	dwc3_mem_region: dwc3_mem_region {
+		iommu-addresses = <&dwc3_0 0x0 0x0 0x0 0x90000000>,
+					<&dwc3_0 0x0 0xf0000000 0xffffffff 0x10000000>;
+	};
+
 };