arm64: dts: qcom: sm8350: Add CPU topology and idle-states

Add CPU topology and define the idle states for the silver and gold
cores as well as the cluster.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Link: https://lore.kernel.org/r/20210825221600.1498939-1-bjorn.andersson@linaro.org

arch/arm64/boot/dts/qcom/sm8350.dtsi

@@ -47,6 +47,8 @@ CPU0: cpu@0 {
 			enable-method = "psci";
 			next-level-cache = <&L2_0>;
 			qcom,freq-domain = <&cpufreq_hw 0>;
+			power-domains = <&CPU_PD0>;
+			power-domain-names = "psci";
 			#cooling-cells = <2>;
 			L2_0: l2-cache {
 			      compatible = "cache";
@@ -64,6 +66,8 @@ CPU1: cpu@100 {
 			enable-method = "psci";
 			next-level-cache = <&L2_100>;
 			qcom,freq-domain = <&cpufreq_hw 0>;
+			power-domains = <&CPU_PD1>;
+			power-domain-names = "psci";
 			#cooling-cells = <2>;
 			L2_100: l2-cache {
 			      compatible = "cache";
@@ -78,6 +82,8 @@ CPU2: cpu@200 {
 			enable-method = "psci";
 			next-level-cache = <&L2_200>;
 			qcom,freq-domain = <&cpufreq_hw 0>;
+			power-domains = <&CPU_PD2>;
+			power-domain-names = "psci";
 			#cooling-cells = <2>;
 			L2_200: l2-cache {
 			      compatible = "cache";
@@ -92,6 +98,8 @@ CPU3: cpu@300 {
 			enable-method = "psci";
 			next-level-cache = <&L2_300>;
 			qcom,freq-domain = <&cpufreq_hw 0>;
+			power-domains = <&CPU_PD3>;
+			power-domain-names = "psci";
 			#cooling-cells = <2>;
 			L2_300: l2-cache {
 			      compatible = "cache";
@@ -106,6 +114,8 @@ CPU4: cpu@400 {
 			enable-method = "psci";
 			next-level-cache = <&L2_400>;
 			qcom,freq-domain = <&cpufreq_hw 1>;
+			power-domains = <&CPU_PD4>;
+			power-domain-names = "psci";
 			#cooling-cells = <2>;
 			L2_400: l2-cache {
 			      compatible = "cache";
@@ -120,6 +130,8 @@ CPU5: cpu@500 {
 			enable-method = "psci";
 			next-level-cache = <&L2_500>;
 			qcom,freq-domain = <&cpufreq_hw 1>;
+			power-domains = <&CPU_PD5>;
+			power-domain-names = "psci";
 			#cooling-cells = <2>;
 			L2_500: l2-cache {
 			      compatible = "cache";
@@ -135,6 +147,8 @@ CPU6: cpu@600 {
 			enable-method = "psci";
 			next-level-cache = <&L2_600>;
 			qcom,freq-domain = <&cpufreq_hw 1>;
+			power-domains = <&CPU_PD6>;
+			power-domain-names = "psci";
 			#cooling-cells = <2>;
 			L2_600: l2-cache {
 			      compatible = "cache";
@@ -149,12 +163,86 @@ CPU7: cpu@700 {
 			enable-method = "psci";
 			next-level-cache = <&L2_700>;
 			qcom,freq-domain = <&cpufreq_hw 2>;
+			power-domains = <&CPU_PD7>;
+			power-domain-names = "psci";
 			#cooling-cells = <2>;
 			L2_700: l2-cache {
 			      compatible = "cache";
 			      next-level-cache = <&L3_0>;
 			};
 		};
+
+		cpu-map {
+			cluster0 {
+				core0 {
+					cpu = <&CPU0>;
+				};
+
+				core1 {
+					cpu = <&CPU1>;
+				};
+
+				core2 {
+					cpu = <&CPU2>;
+				};
+
+				core3 {
+					cpu = <&CPU3>;
+				};
+
+				core4 {
+					cpu = <&CPU4>;
+				};
+
+				core5 {
+					cpu = <&CPU5>;
+				};
+
+				core6 {
+					cpu = <&CPU6>;
+				};
+
+				core7 {
+					cpu = <&CPU7>;
+				};
+			};
+		};
+
+		idle-states {
+			entry-method = "psci";
+
+			LITTLE_CPU_SLEEP_0: cpu-sleep-0-0 {
+				compatible = "arm,idle-state";
+				idle-state-name = "silver-rail-power-collapse";
+				arm,psci-suspend-param = <0x40000004>;
+				entry-latency-us = <355>;
+				exit-latency-us = <909>;
+				min-residency-us = <3934>;
+				local-timer-stop;
+			};
+
+			BIG_CPU_SLEEP_0: cpu-sleep-1-0 {
+				compatible = "arm,idle-state";
+				idle-state-name = "gold-rail-power-collapse";
+				arm,psci-suspend-param = <0x40000004>;
+				entry-latency-us = <241>;
+				exit-latency-us = <1461>;
+				min-residency-us = <4488>;
+				local-timer-stop;
+			};
+		};
+
+		domain-idle-states {
+			CLUSTER_SLEEP_0: cluster-sleep-0 {
+				compatible = "domain-idle-state";
+				idle-state-name = "cluster-power-collapse";
+				arm,psci-suspend-param = <0x4100c344>;
+				entry-latency-us = <3263>;
+				exit-latency-us = <6562>;
+				min-residency-us = <9987>;
+				local-timer-stop;
+			};
+		};
 	};
 
 	firmware {
@@ -178,6 +266,59 @@ pmu {
 	psci {
 		compatible = "arm,psci-1.0";
 		method = "smc";
+
+		CPU_PD0: cpu0 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&LITTLE_CPU_SLEEP_0>;
+		};
+
+		CPU_PD1: cpu1 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&LITTLE_CPU_SLEEP_0>;
+		};
+
+		CPU_PD2: cpu2 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&LITTLE_CPU_SLEEP_0>;
+		};
+
+		CPU_PD3: cpu3 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&LITTLE_CPU_SLEEP_0>;
+		};
+
+		CPU_PD4: cpu4 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&BIG_CPU_SLEEP_0>;
+		};
+
+		CPU_PD5: cpu5 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&BIG_CPU_SLEEP_0>;
+		};
+
+		CPU_PD6: cpu6 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&BIG_CPU_SLEEP_0>;
+		};
+
+		CPU_PD7: cpu7 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&BIG_CPU_SLEEP_0>;
+		};
+
+		CLUSTER_PD: cpu-cluster0 {
+			#power-domain-cells = <0>;
+			domain-idle-states = <&CLUSTER_SLEEP_0>;
+		};
 	};
 
 	reserved_memory: reserved-memory {