arm64: dts: qcom: sdm845: Switch PSCI cpu idle states from PC to OSI

Switch from the flat PC idle states of sdm845 to OSI hierarchical idle
states. The exceptions are the cheza plaftorms, which need to remain with
PC idle states. So in order allow all the other platforms to switch,
while cheza platforms to remain the same, replace the PC idle states with
the OSI ones in the main SDM845 dtsi, and then override the inherited OSI
states with PC ones, delete inherited psci cpus nodes, domain idle states
and power domain properties.

Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Tested-by: Steev Klimaszewski <steev@kali.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220630101403.1888541-1-abel.vesa@linaro.org

2 files changed, 213 insertions, 54 deletions

diff --git a/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi b/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
index 65b905123a8a..b5eb8f7eca1d 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
@@ -145,6 +145,138 @@
 	};
 };
 
+&psci {
+	/delete-node/ cpu0;
+	/delete-node/ cpu1;
+	/delete-node/ cpu2;
+	/delete-node/ cpu3;
+	/delete-node/ cpu4;
+	/delete-node/ cpu5;
+	/delete-node/ cpu6;
+	/delete-node/ cpu7;
+	/delete-node/ cpu-cluster0;
+};
+
+&cpus {
+	/delete-node/ domain-idle-states;
+};
+
+&cpu_idle_states {
+	LITTLE_CPU_SLEEP_0: cpu-sleep-0-0 {
+		compatible = "arm,idle-state";
+		idle-state-name = "little-power-down";
+		arm,psci-suspend-param = <0x40000003>;
+		entry-latency-us = <350>;
+		exit-latency-us = <461>;
+		min-residency-us = <1890>;
+		local-timer-stop;
+	};
+
+	LITTLE_CPU_SLEEP_1: cpu-sleep-0-1 {
+		compatible = "arm,idle-state";
+		idle-state-name = "little-rail-power-down";
+		arm,psci-suspend-param = <0x40000004>;
+		entry-latency-us = <360>;
+		exit-latency-us = <531>;
+		min-residency-us = <3934>;
+		local-timer-stop;
+	};
+
+	BIG_CPU_SLEEP_0: cpu-sleep-1-0 {
+		compatible = "arm,idle-state";
+		idle-state-name = "big-power-down";
+		arm,psci-suspend-param = <0x40000003>;
+		entry-latency-us = <264>;
+		exit-latency-us = <621>;
+		min-residency-us = <952>;
+		local-timer-stop;
+	};
+
+	BIG_CPU_SLEEP_1: cpu-sleep-1-1 {
+		compatible = "arm,idle-state";
+		idle-state-name = "big-rail-power-down";
+		arm,psci-suspend-param = <0x40000004>;
+		entry-latency-us = <702>;
+		exit-latency-us = <1061>;
+		min-residency-us = <4488>;
+		local-timer-stop;
+	};
+
+	CLUSTER_SLEEP_0: cluster-sleep-0 {
+		compatible = "arm,idle-state";
+		idle-state-name = "cluster-power-down";
+		arm,psci-suspend-param = <0x400000F4>;
+		entry-latency-us = <3263>;
+		exit-latency-us = <6562>;
+		min-residency-us = <9987>;
+		local-timer-stop;
+	};
+};
+
+&CPU0 {
+	/delete-property/ power-domains;
+	/delete-property/ power-domain-names;
+	cpu-idle-states = <&LITTLE_CPU_SLEEP_0
+			   &LITTLE_CPU_SLEEP_1
+			   &CLUSTER_SLEEP_0>;
+};
+
+&CPU1 {
+	/delete-property/ power-domains;
+	/delete-property/ power-domain-names;
+	cpu-idle-states = <&LITTLE_CPU_SLEEP_0
+			   &LITTLE_CPU_SLEEP_1
+			   &CLUSTER_SLEEP_0>;
+};
+
+&CPU2 {
+	/delete-property/ power-domains;
+	/delete-property/ power-domain-names;
+	cpu-idle-states = <&LITTLE_CPU_SLEEP_0
+			   &LITTLE_CPU_SLEEP_1
+			   &CLUSTER_SLEEP_0>;
+};
+
+&CPU3 {
+	/delete-property/ power-domains;
+	/delete-property/ power-domain-names;
+	cpu-idle-states = <&LITTLE_CPU_SLEEP_0
+			   &LITTLE_CPU_SLEEP_1
+			   &CLUSTER_SLEEP_0>;
+};
+
+&CPU4 {
+	/delete-property/ power-domains;
+	/delete-property/ power-domain-names;
+	cpu-idle-states = <&BIG_CPU_SLEEP_0
+			   &BIG_CPU_SLEEP_1
+			   &CLUSTER_SLEEP_0>;
+};
+
+&CPU5 {
+	/delete-property/ power-domains;
+	/delete-property/ power-domain-names;
+	cpu-idle-states = <&BIG_CPU_SLEEP_0
+			   &BIG_CPU_SLEEP_1
+			   &CLUSTER_SLEEP_0>;
+};
+
+&CPU6 {
+	/delete-property/ power-domains;
+	/delete-property/ power-domain-names;
+	cpu-idle-states = <&BIG_CPU_SLEEP_0
+			   &BIG_CPU_SLEEP_1
+			   &CLUSTER_SLEEP_0>;
+};
+
+&CPU7 {
+	/delete-property/ power-domains;
+	/delete-property/ power-domain-names;
+	cpu-idle-states = <&BIG_CPU_SLEEP_0
+			   &BIG_CPU_SLEEP_1
+			   &CLUSTER_SLEEP_0>;
+};
+
 /*
  * Reserved memory changes
  *
diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index 32ad5972a642..33b502e135ea 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -188,7 +188,7 @@
 		};
 	};
 
-	cpus {
+	cpus: cpus {
 		#address-cells = <2>;
 		#size-cells = <0>;
 
@@ -197,15 +197,14 @@
 			compatible = "qcom,kryo385";
 			reg = <0x0 0x0>;
 			enable-method = "psci";
-			cpu-idle-states = <&LITTLE_CPU_SLEEP_0
-					   &LITTLE_CPU_SLEEP_1
-					   &CLUSTER_SLEEP_0>;
 			capacity-dmips-mhz = <611>;
 			dynamic-power-coefficient = <290>;
 			qcom,freq-domain = <&cpufreq_hw 0>;
 			operating-points-v2 = <&cpu0_opp_table>;
 			interconnects = <&gladiator_noc MASTER_APPSS_PROC 3 &mem_noc SLAVE_EBI1 3>,
 					<&osm_l3 MASTER_OSM_L3_APPS &osm_l3 SLAVE_OSM_L3>;
+			power-domains = <&CPU_PD0>;
+			power-domain-names = "psci";
 			#cooling-cells = <2>;
 			next-level-cache = <&L2_0>;
 			L2_0: l2-cache {
@@ -222,15 +221,14 @@
 			compatible = "qcom,kryo385";
 			reg = <0x0 0x100>;
 			enable-method = "psci";
-			cpu-idle-states = <&LITTLE_CPU_SLEEP_0
-					   &LITTLE_CPU_SLEEP_1
-					   &CLUSTER_SLEEP_0>;
 			capacity-dmips-mhz = <611>;
 			dynamic-power-coefficient = <290>;
 			qcom,freq-domain = <&cpufreq_hw 0>;
 			operating-points-v2 = <&cpu0_opp_table>;
 			interconnects = <&gladiator_noc MASTER_APPSS_PROC 3 &mem_noc SLAVE_EBI1 3>,
 					<&osm_l3 MASTER_OSM_L3_APPS &osm_l3 SLAVE_OSM_L3>;
+			power-domains = <&CPU_PD1>;
+			power-domain-names = "psci";
 			#cooling-cells = <2>;
 			next-level-cache = <&L2_100>;
 			L2_100: l2-cache {
@@ -244,15 +242,14 @@
 			compatible = "qcom,kryo385";
 			reg = <0x0 0x200>;
 			enable-method = "psci";
-			cpu-idle-states = <&LITTLE_CPU_SLEEP_0
-					   &LITTLE_CPU_SLEEP_1
-					   &CLUSTER_SLEEP_0>;
 			capacity-dmips-mhz = <611>;
 			dynamic-power-coefficient = <290>;
 			qcom,freq-domain = <&cpufreq_hw 0>;
 			operating-points-v2 = <&cpu0_opp_table>;
 			interconnects = <&gladiator_noc MASTER_APPSS_PROC 3 &mem_noc SLAVE_EBI1 3>,
 					<&osm_l3 MASTER_OSM_L3_APPS &osm_l3 SLAVE_OSM_L3>;
+			power-domains = <&CPU_PD2>;
+			power-domain-names = "psci";
 			#cooling-cells = <2>;
 			next-level-cache = <&L2_200>;
 			L2_200: l2-cache {
@@ -266,9 +263,6 @@
 			compatible = "qcom,kryo385";
 			reg = <0x0 0x300>;
 			enable-method = "psci";
-			cpu-idle-states = <&LITTLE_CPU_SLEEP_0
-					   &LITTLE_CPU_SLEEP_1
-					   &CLUSTER_SLEEP_0>;
 			capacity-dmips-mhz = <611>;
 			dynamic-power-coefficient = <290>;
 			qcom,freq-domain = <&cpufreq_hw 0>;
@@ -276,6 +270,8 @@
 			interconnects = <&gladiator_noc MASTER_APPSS_PROC 3 &mem_noc SLAVE_EBI1 3>,
 					<&osm_l3 MASTER_OSM_L3_APPS &osm_l3 SLAVE_OSM_L3>;
 			#cooling-cells = <2>;
+			power-domains = <&CPU_PD3>;
+			power-domain-names = "psci";
 			next-level-cache = <&L2_300>;
 			L2_300: l2-cache {
 				compatible = "cache";
@@ -289,14 +285,13 @@
 			reg = <0x0 0x400>;
 			enable-method = "psci";
 			capacity-dmips-mhz = <1024>;
-			cpu-idle-states = <&BIG_CPU_SLEEP_0
-					   &BIG_CPU_SLEEP_1
-					   &CLUSTER_SLEEP_0>;
 			dynamic-power-coefficient = <442>;
 			qcom,freq-domain = <&cpufreq_hw 1>;
 			operating-points-v2 = <&cpu4_opp_table>;
 			interconnects = <&gladiator_noc MASTER_APPSS_PROC 3 &mem_noc SLAVE_EBI1 3>,
 					<&osm_l3 MASTER_OSM_L3_APPS &osm_l3 SLAVE_OSM_L3>;
+			power-domains = <&CPU_PD4>;
+			power-domain-names = "psci";
 			#cooling-cells = <2>;
 			next-level-cache = <&L2_400>;
 			L2_400: l2-cache {
@@ -311,14 +306,13 @@
 			reg = <0x0 0x500>;
 			enable-method = "psci";
 			capacity-dmips-mhz = <1024>;
-			cpu-idle-states = <&BIG_CPU_SLEEP_0
-					   &BIG_CPU_SLEEP_1
-					   &CLUSTER_SLEEP_0>;
 			dynamic-power-coefficient = <442>;
 			qcom,freq-domain = <&cpufreq_hw 1>;
 			operating-points-v2 = <&cpu4_opp_table>;
 			interconnects = <&gladiator_noc MASTER_APPSS_PROC 3 &mem_noc SLAVE_EBI1 3>,
 					<&osm_l3 MASTER_OSM_L3_APPS &osm_l3 SLAVE_OSM_L3>;
+			power-domains = <&CPU_PD5>;
+			power-domain-names = "psci";
 			#cooling-cells = <2>;
 			next-level-cache = <&L2_500>;
 			L2_500: l2-cache {
@@ -333,14 +327,13 @@
 			reg = <0x0 0x600>;
 			enable-method = "psci";
 			capacity-dmips-mhz = <1024>;
-			cpu-idle-states = <&BIG_CPU_SLEEP_0
-					   &BIG_CPU_SLEEP_1
-					   &CLUSTER_SLEEP_0>;
 			dynamic-power-coefficient = <442>;
 			qcom,freq-domain = <&cpufreq_hw 1>;
 			operating-points-v2 = <&cpu4_opp_table>;
 			interconnects = <&gladiator_noc MASTER_APPSS_PROC 3 &mem_noc SLAVE_EBI1 3>,
 					<&osm_l3 MASTER_OSM_L3_APPS &osm_l3 SLAVE_OSM_L3>;
+			power-domains = <&CPU_PD6>;
+			power-domain-names = "psci";
 			#cooling-cells = <2>;
 			next-level-cache = <&L2_600>;
 			L2_600: l2-cache {
@@ -355,14 +348,13 @@
 			reg = <0x0 0x700>;
 			enable-method = "psci";
 			capacity-dmips-mhz = <1024>;
-			cpu-idle-states = <&BIG_CPU_SLEEP_0
-					   &BIG_CPU_SLEEP_1
-					   &CLUSTER_SLEEP_0>;
 			dynamic-power-coefficient = <442>;
 			qcom,freq-domain = <&cpufreq_hw 1>;
 			operating-points-v2 = <&cpu4_opp_table>;
 			interconnects = <&gladiator_noc MASTER_APPSS_PROC 3 &mem_noc SLAVE_EBI1 3>,
 					<&osm_l3 MASTER_OSM_L3_APPS &osm_l3 SLAVE_OSM_L3>;
+			power-domains = <&CPU_PD7>;
+			power-domain-names = "psci";
 			#cooling-cells = <2>;
 			next-level-cache = <&L2_700>;
 			L2_700: l2-cache {
@@ -407,53 +399,35 @@
 			};
 		};
 
-		idle-states {
+		cpu_idle_states: idle-states {
 			entry-method = "psci";
 
 			LITTLE_CPU_SLEEP_0: cpu-sleep-0-0 {
 				compatible = "arm,idle-state";
-				idle-state-name = "little-power-down";
-				arm,psci-suspend-param = <0x40000003>;
+				idle-state-name = "little-rail-power-collapse";
+				arm,psci-suspend-param = <0x40000004>;
 				entry-latency-us = <350>;
 				exit-latency-us = <461>;
 				min-residency-us = <1890>;
 				local-timer-stop;
 			};
 
-			LITTLE_CPU_SLEEP_1: cpu-sleep-0-1 {
-				compatible = "arm,idle-state";
-				idle-state-name = "little-rail-power-down";
-				arm,psci-suspend-param = <0x40000004>;
-				entry-latency-us = <360>;
-				exit-latency-us = <531>;
-				min-residency-us = <3934>;
-				local-timer-stop;
-			};
-
 			BIG_CPU_SLEEP_0: cpu-sleep-1-0 {
 				compatible = "arm,idle-state";
-				idle-state-name = "big-power-down";
-				arm,psci-suspend-param = <0x40000003>;
+				idle-state-name = "big-rail-power-collapse";
+				arm,psci-suspend-param = <0x40000004>;
 				entry-latency-us = <264>;
 				exit-latency-us = <621>;
 				min-residency-us = <952>;
 				local-timer-stop;
 			};
+		};
 
-			BIG_CPU_SLEEP_1: cpu-sleep-1-1 {
-				compatible = "arm,idle-state";
-				idle-state-name = "big-rail-power-down";
-				arm,psci-suspend-param = <0x40000004>;
-				entry-latency-us = <702>;
-				exit-latency-us = <1061>;
-				min-residency-us = <4488>;
-				local-timer-stop;
-			};
-
+		domain-idle-states {
 			CLUSTER_SLEEP_0: cluster-sleep-0 {
-				compatible = "arm,idle-state";
-				idle-state-name = "cluster-power-down";
-				arm,psci-suspend-param = <0x400000F4>;
+				compatible = "domain-idle-state";
+				idle-state-name = "cluster-power-collapse";
+				arm,psci-suspend-param = <0x4100c244>;
 				entry-latency-us = <3263>;
 				exit-latency-us = <6562>;
 				min-residency-us = <9987>;
@@ -1050,9 +1024,62 @@
 		};
 	};
 
-	psci {
+	psci: psci {
 		compatible = "arm,psci-1.0";
 		method = "smc";
+
+		CPU_PD0: power-domain-cpu0 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&LITTLE_CPU_SLEEP_0>;
+		};
+
+		CPU_PD1: power-domain-cpu1 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&LITTLE_CPU_SLEEP_0>;
+		};
+
+		CPU_PD2: power-domain-cpu2 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&LITTLE_CPU_SLEEP_0>;
+		};
+
+		CPU_PD3: power-domain-cpu3 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&LITTLE_CPU_SLEEP_0>;
+		};
+
+		CPU_PD4: power-domain-cpu4 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&BIG_CPU_SLEEP_0>;
+		};
+
+		CPU_PD5: power-domain-cpu5 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&BIG_CPU_SLEEP_0>;
+		};
+
+		CPU_PD6: power-domain-cpu6 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&BIG_CPU_SLEEP_0>;
+		};
+
+		CPU_PD7: power-domain-cpu7 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&BIG_CPU_SLEEP_0>;
+		};
+
+		CLUSTER_PD: power-domain-cluster {
+			#power-domain-cells = <0>;
+			domain-idle-states = <&CLUSTER_SLEEP_0>;
+		};
 	};
 
 	soc: soc@0 {