diff --git a/arch/arm64/boot/dts/cix/sky1.dtsi b/arch/arm64/boot/dts/cix/sky1.dtsi
index 9f80e1aa070a..a77c52296ebd 100644
--- a/arch/arm64/boot/dts/cix/sky1.dtsi
+++ b/arch/arm64/boot/dts/cix/sky1.dtsi
@@ -25,6 +25,7 @@ cpu0: cpu@0 {
 			power-domains = <&scmi_dvfs SKY1_PERF_CPU_L>;
 			power-domain-names = "perf";
 			capacity-dmips-mhz = <403>;
+			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
 		};
 
 		cpu1: cpu@100 {
@@ -35,6 +36,7 @@ cpu1: cpu@100 {
 			power-domains = <&scmi_dvfs SKY1_PERF_CPU_L>;
 			power-domain-names = "perf";
 			capacity-dmips-mhz = <403>;
+			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
 		};
 
 		cpu2: cpu@200 {
@@ -45,6 +47,7 @@ cpu2: cpu@200 {
 			power-domains = <&scmi_dvfs SKY1_PERF_CPU_L>;
 			power-domain-names = "perf";
 			capacity-dmips-mhz = <403>;
+			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
 		};
 
 		cpu3: cpu@300 {
@@ -55,6 +58,7 @@ cpu3: cpu@300 {
 			power-domains = <&scmi_dvfs SKY1_PERF_CPU_L>;
 			power-domain-names = "perf";
 			capacity-dmips-mhz = <403>;
+			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
 		};
 
 		cpu4: cpu@400 {
@@ -65,6 +69,7 @@ cpu4: cpu@400 {
 			power-domains = <&scmi_dvfs SKY1_PERF_CPU_M0>;
 			power-domain-names = "perf";
 			capacity-dmips-mhz = <1024>;
+			cpu-idle-states = <&CPU_SLEEP_1 &CLUSTER_SLEEP_0>;
 		};
 
 		cpu5: cpu@500 {
@@ -75,6 +80,7 @@ cpu5: cpu@500 {
 			power-domains = <&scmi_dvfs SKY1_PERF_CPU_M0>;
 			power-domain-names = "perf";
 			capacity-dmips-mhz = <1024>;
+			cpu-idle-states = <&CPU_SLEEP_1 &CLUSTER_SLEEP_0>;
 		};
 
 		cpu6: cpu@600 {
@@ -85,6 +91,7 @@ cpu6: cpu@600 {
 			power-domains = <&scmi_dvfs SKY1_PERF_CPU_M1>;
 			power-domain-names = "perf";
 			capacity-dmips-mhz = <1024>;
+			cpu-idle-states = <&CPU_SLEEP_1 &CLUSTER_SLEEP_0>;
 		};
 
 		cpu7: cpu@700 {
@@ -95,6 +102,7 @@ cpu7: cpu@700 {
 			power-domains = <&scmi_dvfs SKY1_PERF_CPU_M1>;
 			power-domain-names = "perf";
 			capacity-dmips-mhz = <1024>;
+			cpu-idle-states = <&CPU_SLEEP_1 &CLUSTER_SLEEP_0>;
 		};
 
 		cpu8: cpu@800 {
@@ -105,6 +113,7 @@ cpu8: cpu@800 {
 			power-domains = <&scmi_dvfs SKY1_PERF_CPU_B0>;
 			power-domain-names = "perf";
 			capacity-dmips-mhz = <1024>;
+			cpu-idle-states = <&CPU_SLEEP_1 &CLUSTER_SLEEP_0>;
 		};
 
 		cpu9: cpu@900 {
@@ -115,6 +124,7 @@ cpu9: cpu@900 {
 			power-domains = <&scmi_dvfs SKY1_PERF_CPU_B0>;
 			power-domain-names = "perf";
 			capacity-dmips-mhz = <1024>;
+			cpu-idle-states = <&CPU_SLEEP_1 &CLUSTER_SLEEP_0>;
 		};
 
 		cpu10: cpu@a00 {
@@ -125,6 +135,7 @@ cpu10: cpu@a00 {
 			power-domains = <&scmi_dvfs SKY1_PERF_CPU_B1>;
 			power-domain-names = "perf";
 			capacity-dmips-mhz = <1024>;
+			cpu-idle-states = <&CPU_SLEEP_1 &CLUSTER_SLEEP_0>;
 		};
 
 		cpu11: cpu@b00 {
@@ -135,6 +146,7 @@ cpu11: cpu@b00 {
 			power-domains = <&scmi_dvfs SKY1_PERF_CPU_B1>;
 			power-domain-names = "perf";
 			capacity-dmips-mhz = <1024>;
+			cpu-idle-states = <&CPU_SLEEP_1 &CLUSTER_SLEEP_0>;
 		};
 
 		cpu-map {
@@ -177,6 +189,35 @@ core11 {
 				};
 			};
 		};
+
+		idle-states {
+			CPU_SLEEP_0: cpu-sleep-0 {
+				compatible = "arm,idle-state";
+				arm,psci-suspend-param = <0x0010000>;
+				local-timer-stop;
+				entry-latency-us = <34>;
+				exit-latency-us = <100>;
+				min-residency-us = <3000>;
+			};
+
+			CPU_SLEEP_1: cpu-sleep-1 {
+				compatible = "arm,idle-state";
+				arm,psci-suspend-param = <0x0010000>;
+				local-timer-stop;
+				entry-latency-us = <31>;
+				exit-latency-us = <79>;
+				min-residency-us = <3000>;
+			};
+
+			CLUSTER_SLEEP_0: cluster-sleep-0 {
+				compatible = "arm,idle-state";
+				arm,psci-suspend-param = <0x1010000>;
+				local-timer-stop;
+				entry-latency-us = <41>;
+				exit-latency-us = <104>;
+				min-residency-us = <4000>;
+			};
+		};
 	};
 
 	firmware {