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From:   Maulik Shah <quic_mkshah@quicinc.com>
To:     <andersson@kernel.org>, <ulf.hansson@linaro.org>,
        <dianders@chromium.org>, <swboyd@chromium.org>,
        <wingers@google.com>
CC:     <linux-arm-msm@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <linux-pm@vger.kernel.org>, <sudeep.holla@arm.com>,
        <jwerner@chromium.org>, <quic_lsrao@quicinc.com>,
        <quic_rjendra@quicinc.com>, Maulik Shah <quic_mkshah@quicinc.com>,
        <devicetree@vger.kernel.org>
Subject: [PATCH v4 3/3] arm64: dts: qcom: sc7280: Add power-domains for cpuidle states
Date:   Mon, 24 Apr 2023 16:39:33 +0530
Message-ID: <20230424110933.3908-4-quic_mkshah@quicinc.com>
In-Reply-To: <20230424110933.3908-1-quic_mkshah@quicinc.com>
References: <20230424110933.3908-1-quic_mkshah@quicinc.com>
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Add power-domains for cpuidle states to use psci os-initiated idle states.

Cc: devicetree@vger.kernel.org
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Maulik Shah <quic_mkshah@quicinc.com>
---
 arch/arm64/boot/dts/qcom/sc7280.dtsi | 98 +++++++++++++++++++++-------
 1 file changed, 73 insertions(+), 25 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 31728f461422..88e234b4dee3 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -170,9 +170,8 @@
 			reg = <0x0 0x0>;
 			clocks = <&cpufreq_hw 0>;
 			enable-method = "psci";
-			cpu-idle-states = <&LITTLE_CPU_SLEEP_0
-					   &LITTLE_CPU_SLEEP_1
-					   &CLUSTER_SLEEP_0>;
+			power-domains = <&CPU_PD0>;
+			power-domain-names = "psci";
 			next-level-cache = <&L2_0>;
 			operating-points-v2 = <&cpu0_opp_table>;
 			interconnects = <&gem_noc MASTER_APPSS_PROC 3 &mc_virt SLAVE_EBI1 3>,
@@ -196,9 +195,8 @@
 			reg = <0x0 0x100>;
 			clocks = <&cpufreq_hw 0>;
 			enable-method = "psci";
-			cpu-idle-states = <&LITTLE_CPU_SLEEP_0
-					   &LITTLE_CPU_SLEEP_1
-					   &CLUSTER_SLEEP_0>;
+			power-domains = <&CPU_PD1>;
+			power-domain-names = "psci";
 			next-level-cache = <&L2_100>;
 			operating-points-v2 = <&cpu0_opp_table>;
 			interconnects = <&gem_noc MASTER_APPSS_PROC 3 &mc_virt SLAVE_EBI1 3>,
@@ -218,9 +216,8 @@
 			reg = <0x0 0x200>;
 			clocks = <&cpufreq_hw 0>;
 			enable-method = "psci";
-			cpu-idle-states = <&LITTLE_CPU_SLEEP_0
-					   &LITTLE_CPU_SLEEP_1
-					   &CLUSTER_SLEEP_0>;
+			power-domains = <&CPU_PD2>;
+			power-domain-names = "psci";
 			next-level-cache = <&L2_200>;
 			operating-points-v2 = <&cpu0_opp_table>;
 			interconnects = <&gem_noc MASTER_APPSS_PROC 3 &mc_virt SLAVE_EBI1 3>,
@@ -240,9 +237,8 @@
 			reg = <0x0 0x300>;
 			clocks = <&cpufreq_hw 0>;
 			enable-method = "psci";
-			cpu-idle-states = <&LITTLE_CPU_SLEEP_0
-					   &LITTLE_CPU_SLEEP_1
-					   &CLUSTER_SLEEP_0>;
+			power-domains = <&CPU_PD3>;
+			power-domain-names = "psci";
 			next-level-cache = <&L2_300>;
 			operating-points-v2 = <&cpu0_opp_table>;
 			interconnects = <&gem_noc MASTER_APPSS_PROC 3 &mc_virt SLAVE_EBI1 3>,
@@ -262,9 +258,8 @@
 			reg = <0x0 0x400>;
 			clocks = <&cpufreq_hw 1>;
 			enable-method = "psci";
-			cpu-idle-states = <&BIG_CPU_SLEEP_0
-					   &BIG_CPU_SLEEP_1
-					   &CLUSTER_SLEEP_0>;
+			power-domains = <&CPU_PD4>;
+			power-domain-names = "psci";
 			next-level-cache = <&L2_400>;
 			operating-points-v2 = <&cpu4_opp_table>;
 			interconnects = <&gem_noc MASTER_APPSS_PROC 3 &mc_virt SLAVE_EBI1 3>,
@@ -284,9 +279,8 @@
 			reg = <0x0 0x500>;
 			clocks = <&cpufreq_hw 1>;
 			enable-method = "psci";
-			cpu-idle-states = <&BIG_CPU_SLEEP_0
-					   &BIG_CPU_SLEEP_1
-					   &CLUSTER_SLEEP_0>;
+			power-domains = <&CPU_PD5>;
+			power-domain-names = "psci";
 			next-level-cache = <&L2_500>;
 			operating-points-v2 = <&cpu4_opp_table>;
 			interconnects = <&gem_noc MASTER_APPSS_PROC 3 &mc_virt SLAVE_EBI1 3>,
@@ -306,9 +300,8 @@
 			reg = <0x0 0x600>;
 			clocks = <&cpufreq_hw 1>;
 			enable-method = "psci";
-			cpu-idle-states = <&BIG_CPU_SLEEP_0
-					   &BIG_CPU_SLEEP_1
-					   &CLUSTER_SLEEP_0>;
+			power-domains = <&CPU_PD6>;
+			power-domain-names = "psci";
 			next-level-cache = <&L2_600>;
 			operating-points-v2 = <&cpu4_opp_table>;
 			interconnects = <&gem_noc MASTER_APPSS_PROC 3 &mc_virt SLAVE_EBI1 3>,
@@ -328,9 +321,8 @@
 			reg = <0x0 0x700>;
 			clocks = <&cpufreq_hw 2>;
 			enable-method = "psci";
-			cpu-idle-states = <&BIG_CPU_SLEEP_0
-					   &BIG_CPU_SLEEP_1
-					   &CLUSTER_SLEEP_0>;
+			power-domains = <&CPU_PD7>;
+			power-domain-names = "psci";
 			next-level-cache = <&L2_700>;
 			operating-points-v2 = <&cpu7_opp_table>;
 			interconnects = <&gem_noc MASTER_APPSS_PROC 3 &mc_virt SLAVE_EBI1 3>,
@@ -422,9 +414,11 @@
 				min-residency-us = <5555>;
 				local-timer-stop;
 			};
+		};
 
+		domain-idle-states {
 			CLUSTER_SLEEP_0: cluster-sleep-0 {
-				compatible = "arm,idle-state";
+				compatible = "domain-idle-state";
 				idle-state-name = "cluster-power-down";
 				arm,psci-suspend-param = <0x40003444>;
 				entry-latency-us = <3263>;
@@ -790,6 +784,59 @@
 	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 &LITTLE_CPU_SLEEP_1>;
+		};
+
+		CPU_PD1: cpu1 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1>;
+		};
+
+		CPU_PD2: cpu2 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1>;
+		};
+
+		CPU_PD3: cpu3 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1>;
+		};
+
+		CPU_PD4: cpu4 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&BIG_CPU_SLEEP_0 &BIG_CPU_SLEEP_1>;
+		};
+
+		CPU_PD5: cpu5 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&BIG_CPU_SLEEP_0 &BIG_CPU_SLEEP_1>;
+		};
+
+		CPU_PD6: cpu6 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&BIG_CPU_SLEEP_0 &BIG_CPU_SLEEP_1>;
+		};
+
+		CPU_PD7: cpu7 {
+			#power-domain-cells = <0>;
+			power-domains = <&CLUSTER_PD>;
+			domain-idle-states = <&BIG_CPU_SLEEP_0 &BIG_CPU_SLEEP_1>;
+		};
+
+		CLUSTER_PD: cpu-cluster0 {
+			#power-domain-cells = <0>;
+			domain-idle-states = <&CLUSTER_SLEEP_0>;
+		};
 	};
 
 	qspi_opp_table: opp-table-qspi {
@@ -5283,6 +5330,7 @@
 					  <SLEEP_TCS   3>,
 					  <WAKE_TCS    3>,
 					  <CONTROL_TCS 1>;
+			power-domains = <&CLUSTER_PD>;
 
 			apps_bcm_voter: bcm-voter {
 				compatible = "qcom,bcm-voter";
-- 
2.17.1