diff --git a/arch/arm64/boot/dts/qcom/hamoa.dtsi b/arch/arm64/boot/dts/qcom/hamoa.dtsi
index d2de79a29785..44117899442f 100644
--- a/arch/arm64/boot/dts/qcom/hamoa.dtsi
+++ b/arch/arm64/boot/dts/qcom/hamoa.dtsi
@@ -304,6 +304,14 @@
 				exit-latency-us = <4000>;
 				min-residency-us = <7000>;
 			};
+
+			domain_ss3: domain-sleep-0 {
+				compatible = "domain-idle-state";
+				arm,psci-suspend-param = <0x0200c354>;
+				entry-latency-us = <2800>;
+				exit-latency-us = <4400>;
+				min-residency-us = <9000>;
+			};
 		};
 	};
 
@@ -526,8 +534,7 @@
 	firmware {
 		scm: scm {
 			compatible = "qcom,scm-x1e80100", "qcom,scm";
-			interconnects = <&aggre2_noc MASTER_CRYPTO QCOM_ICC_TAG_ALWAYS
-					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>;
+			/* TODO: add interconnects */
 			qcom,dload-mode = <&tcsr 0x19000>;
 		};
 
@@ -666,7 +673,7 @@
 
 		system_pd: power-domain-system {
 			#power-domain-cells = <0>;
-			/* TODO: system-wide idle states */
+			domain-idle-states = <&domain_ss3>;
 		};
 
 		reboot-mode {
@@ -6764,8 +6771,10 @@
 
 		pdc: interrupt-controller@b220000 {
 			compatible = "qcom,x1e80100-pdc", "qcom,pdc";
-			reg = <0 0x0b220000 0 0x30000>, <0 0x174000f0 0 0x64>;
-
+			reg = <0 0x0b220000 0 0x30000>,
+			      <0 0x174000f0 0 0x64>,
+			      <0 0x0b2045e8 0 0x4>;
+			qcom,qmp = <&aoss_qmp>;
 			qcom,pdc-ranges = <0 480 42>, <42 251 5>,
 					  <47 522 52>, <99 609 32>,
 					  <131 717 12>, <143 816 19>;
diff --git a/arch/arm64/boot/dts/qcom/purwa.dtsi b/arch/arm64/boot/dts/qcom/purwa.dtsi
index 4f9357787fee..743eb12569f4 100644
--- a/arch/arm64/boot/dts/qcom/purwa.dtsi
+++ b/arch/arm64/boot/dts/qcom/purwa.dtsi
@@ -174,6 +174,10 @@
 	compatible = "qcom,x1p42100-qmp-gen4x4-pcie-phy";
 };
 
+&pdc {
+	compatible = "qcom,x1p42100-pdc", "qcom,pdc";
+};
+
 &qfprom {
 	gpu_speed_bin: gpu-speed-bin@119 {
 		reg = <0x119 0x2>;