diff --git a/qcom/msm-arm-smmu-sun.dtsi b/qcom/msm-arm-smmu-sun.dtsi
index 94b24551..4b640146 100644
--- a/qcom/msm-arm-smmu-sun.dtsi
+++ b/qcom/msm-arm-smmu-sun.dtsi
@@ -17,7 +17,13 @@
 		ranges;
 		dma-coherent;
 
+		/*
+		 * When gdsc is enabled, and cpu enters cpuidle, DDR
+		 * bandwidth vote must be present to prevent DDR
+		 * shutdown.
+		 */
 		power-domains = <&gpucc GPU_CC_CX_GDSC>;
+		interconnects = <&gem_noc MASTER_GPU_TCU &mc_virt SLAVE_EBI1>;
 
 		clocks = <&gpucc GPU_CC_HLOS1_VOTE_GPU_SMMU_CLK>;
 		clock-names =