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Date: Sun, 9 Jan 2022 22:54:59 +0530
From: Maulik Shah <quic_mkshah@...cinc.com>
To: <bjorn.andersson@...aro.org>, <ulf.hansson@...aro.org>
CC: <linux-arm-msm@...r.kernel.org>, <linux-pm@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <rafael@...nel.org>,
<daniel.lezcano@...aro.org>, <quic_lsrao@...cinc.com>,
<quic_rjendra@...cinc.com>, Maulik Shah <quic_mkshah@...cinc.com>,
<devicetree@...r.kernel.org>
Subject: [PATCH 02/10] arm64: dts: qcom: sm8250: Add cpuidle states
This change adds various idle states and add devices to power domains.
Cc: devicetree@...r.kernel.org
Signed-off-by: Maulik Shah <quic_mkshah@...cinc.com>
---
arch/arm64/boot/dts/qcom/sm8250.dtsi | 105 +++++++++++++++++++++++++++++++++++
1 file changed, 105 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi
index 5617a46..077d0ab 100644
--- a/arch/arm64/boot/dts/qcom/sm8250.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi
@@ -98,6 +98,8 @@
capacity-dmips-mhz = <448>;
dynamic-power-coefficient = <205>;
next-level-cache = <&L2_0>;
+ power-domains = <&CPU_PD0>;
+ power-domain-names = "psci";
qcom,freq-domain = <&cpufreq_hw 0>;
operating-points-v2 = <&cpu0_opp_table>;
interconnects = <&gem_noc MASTER_AMPSS_M0 &mc_virt SLAVE_EBI_CH0>,
@@ -120,6 +122,8 @@
capacity-dmips-mhz = <448>;
dynamic-power-coefficient = <205>;
next-level-cache = <&L2_100>;
+ power-domains = <&CPU_PD1>;
+ power-domain-names = "psci";
qcom,freq-domain = <&cpufreq_hw 0>;
operating-points-v2 = <&cpu0_opp_table>;
interconnects = <&gem_noc MASTER_AMPSS_M0 &mc_virt SLAVE_EBI_CH0>,
@@ -139,6 +143,8 @@
capacity-dmips-mhz = <448>;
dynamic-power-coefficient = <205>;
next-level-cache = <&L2_200>;
+ power-domains = <&CPU_PD2>;
+ power-domain-names = "psci";
qcom,freq-domain = <&cpufreq_hw 0>;
operating-points-v2 = <&cpu0_opp_table>;
interconnects = <&gem_noc MASTER_AMPSS_M0 &mc_virt SLAVE_EBI_CH0>,
@@ -158,6 +164,8 @@
capacity-dmips-mhz = <448>;
dynamic-power-coefficient = <205>;
next-level-cache = <&L2_300>;
+ power-domains = <&CPU_PD3>;
+ power-domain-names = "psci";
qcom,freq-domain = <&cpufreq_hw 0>;
operating-points-v2 = <&cpu0_opp_table>;
interconnects = <&gem_noc MASTER_AMPSS_M0 &mc_virt SLAVE_EBI_CH0>,
@@ -177,6 +185,8 @@
capacity-dmips-mhz = <1024>;
dynamic-power-coefficient = <379>;
next-level-cache = <&L2_400>;
+ power-domains = <&CPU_PD4>;
+ power-domain-names = "psci";
qcom,freq-domain = <&cpufreq_hw 1>;
operating-points-v2 = <&cpu4_opp_table>;
interconnects = <&gem_noc MASTER_AMPSS_M0 &mc_virt SLAVE_EBI_CH0>,
@@ -196,6 +206,8 @@
capacity-dmips-mhz = <1024>;
dynamic-power-coefficient = <379>;
next-level-cache = <&L2_500>;
+ power-domains = <&CPU_PD5>;
+ power-domain-names = "psci";
qcom,freq-domain = <&cpufreq_hw 1>;
operating-points-v2 = <&cpu4_opp_table>;
interconnects = <&gem_noc MASTER_AMPSS_M0 &mc_virt SLAVE_EBI_CH0>,
@@ -216,6 +228,8 @@
capacity-dmips-mhz = <1024>;
dynamic-power-coefficient = <379>;
next-level-cache = <&L2_600>;
+ power-domains = <&CPU_PD6>;
+ power-domain-names = "psci";
qcom,freq-domain = <&cpufreq_hw 1>;
operating-points-v2 = <&cpu4_opp_table>;
interconnects = <&gem_noc MASTER_AMPSS_M0 &mc_virt SLAVE_EBI_CH0>,
@@ -235,6 +249,8 @@
capacity-dmips-mhz = <1024>;
dynamic-power-coefficient = <444>;
next-level-cache = <&L2_700>;
+ power-domains = <&CPU_PD7>;
+ power-domain-names = "psci";
qcom,freq-domain = <&cpufreq_hw 2>;
operating-points-v2 = <&cpu7_opp_table>;
interconnects = <&gem_noc MASTER_AMPSS_M0 &mc_virt SLAVE_EBI_CH0>,
@@ -281,6 +297,42 @@
};
};
};
+
+ 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 = <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 = "gold-rail-power-collapse";
+ 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 = "domain-idle-state";
+ idle-state-name = "cluster-llcc-off";
+ arm,psci-suspend-param = <0x4100c244>;
+ entry-latency-us = <3264>;
+ exit-latency-us = <6562>;
+ min-residency-us = <9987>;
+ local-timer-stop;
+ };
+ };
};
cpu0_opp_table: cpu0_opp_table {
@@ -594,6 +646,59 @@
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>;
+ };
+
+ 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 {
--
2.7.4
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