diff --git a/sun-audio.dtsi b/sun-audio.dtsi
index a96e4b4e..50e77c5b 100644
--- a/sun-audio.dtsi
+++ b/sun-audio.dtsi
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: BSD-3-Clause
 /*
- * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2023-2024 Qualcomm Innovation Center, Inc. All rights reserved.
  */
 
 #include <bindings/qcom,audio-ext-clk.h>
@@ -57,9 +57,15 @@
 		qcom,smmu-version = <2>;
 		qcom,smmu-enabled;
 		iommus = <&apps_smmu 0x1001 0x0080>, <&apps_smmu 0x1061 0x0>;
-		qcom,iommu-dma-addr-pool = <0x10000000 0x10000000>;
+		memory-region = <&audio_cnss_resv_region>;
+		qcom,iommu-group = <&cnss_audio_iommu_group0>;
 		qcom,smmu-sid-mask = /bits/ 64 <0xf>;
 		dma-coherent;
+
+		audio_cnss_resv_region: audio_cnss_resv_region {
+			iommu-addresses = <&msm_audio_ion 0x00000000 0x88000000>,
+				<&msm_audio_ion 0xb0000000 0x50000000>;
+		};
 	};
 
 	msm_audio_ion_cma: qcom,msm-audio-ion-cma {