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Message-Id: <20230518080031.2509250-1-bhupesh.sharma@linaro.org>
Date: Thu, 18 May 2023 13:30:31 +0530
From: Bhupesh Sharma <bhupesh.sharma@...aro.org>
To: linux-arm-msm@...r.kernel.org
Cc: agross@...nel.org, andersson@...nel.org, konrad.dybcio@...aro.org,
linux-kernel@...r.kernel.org, bhupesh.linux@...il.com,
bhupesh.sharma@...aro.org, robh+dt@...nel.org,
krzysztof.kozlowski@...aro.org, devicetree@...r.kernel.org
Subject: [PATCH v3 1/1] arm64: dts: qcom: sm6115: Add CPU idle-states
Add CPU idle-state nodes and power-domains in Qualcomm sm6115 SoC dtsi.
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@...aro.org>
---
Changes since v2:
- v2 can be viewed here: https://lore.kernel.org/linux-arm-msm/20230330193303.612475-1-bhupesh.sharma@linaro.org/
- v2 has no functional change, except I tested using debugfs/sysfs and
the idle states looked sane to me.
Changes since v1:
- v1 can be viewed here: https://lore.kernel.org/lkml/e5cda4cf-5c2a-a7ed-9e1d-1fe9f2cbef40@linaro.org
- Addressed Konrad's comments on v1 and added GDHS and Power Collapse
cluster power states.
arch/arm64/boot/dts/qcom/sm6115.dtsi | 136 +++++++++++++++++++++++++++
1 file changed, 136 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sm6115.dtsi b/arch/arm64/boot/dts/qcom/sm6115.dtsi
index 631ca327e064..0cfccde38f70 100644
--- a/arch/arm64/boot/dts/qcom/sm6115.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm6115.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";
L2_0: l2-cache {
compatible = "cache";
cache-level = <2>;
@@ -63,6 +65,8 @@ CPU1: cpu@1 {
enable-method = "psci";
next-level-cache = <&L2_0>;
qcom,freq-domain = <&cpufreq_hw 0>;
+ power-domains = <&CPU_PD1>;
+ power-domain-names = "psci";
};
CPU2: cpu@2 {
@@ -75,6 +79,8 @@ CPU2: cpu@2 {
enable-method = "psci";
next-level-cache = <&L2_0>;
qcom,freq-domain = <&cpufreq_hw 0>;
+ power-domains = <&CPU_PD2>;
+ power-domain-names = "psci";
};
CPU3: cpu@3 {
@@ -87,6 +93,8 @@ CPU3: cpu@3 {
enable-method = "psci";
next-level-cache = <&L2_0>;
qcom,freq-domain = <&cpufreq_hw 0>;
+ power-domains = <&CPU_PD3>;
+ power-domain-names = "psci";
};
CPU4: cpu@100 {
@@ -99,6 +107,8 @@ CPU4: cpu@100 {
dynamic-power-coefficient = <282>;
next-level-cache = <&L2_1>;
qcom,freq-domain = <&cpufreq_hw 1>;
+ power-domains = <&CPU_PD4>;
+ power-domain-names = "psci";
L2_1: l2-cache {
compatible = "cache";
cache-level = <2>;
@@ -115,6 +125,8 @@ CPU5: cpu@101 {
enable-method = "psci";
next-level-cache = <&L2_1>;
qcom,freq-domain = <&cpufreq_hw 1>;
+ power-domains = <&CPU_PD5>;
+ power-domain-names = "psci";
};
CPU6: cpu@102 {
@@ -127,6 +139,8 @@ CPU6: cpu@102 {
enable-method = "psci";
next-level-cache = <&L2_1>;
qcom,freq-domain = <&cpufreq_hw 1>;
+ power-domains = <&CPU_PD6>;
+ power-domain-names = "psci";
};
CPU7: cpu@103 {
@@ -139,6 +153,8 @@ CPU7: cpu@103 {
enable-method = "psci";
next-level-cache = <&L2_1>;
qcom,freq-domain = <&cpufreq_hw 1>;
+ power-domains = <&CPU_PD7>;
+ power-domain-names = "psci";
};
cpu-map {
@@ -178,6 +194,68 @@ core3 {
};
};
};
+
+ 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 = <0x40000003>;
+ entry-latency-us = <290>;
+ exit-latency-us = <376>;
+ min-residency-us = <1182>;
+ 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 = <0x40000003>;
+ entry-latency-us = <297>;
+ exit-latency-us = <324>;
+ min-residency-us = <1110>;
+ local-timer-stop;
+ };
+ };
+
+ domain-idle-states {
+ CLUSTER_0_SLEEP_0: cluster-sleep-0-0 {
+ /* GDHS */
+ compatible = "domain-idle-state";
+ arm,psci-suspend-param = <0x40000022>;
+ entry-latency-us = <360>;
+ exit-latency-us = <421>;
+ min-residency-us = <782>;
+ };
+
+ CLUSTER_0_SLEEP_1: cluster-sleep-0-1 {
+ /* Power Collapse */
+ compatible = "domain-idle-state";
+ arm,psci-suspend-param = <0x41000044>;
+ entry-latency-us = <800>;
+ exit-latency-us = <2118>;
+ min-residency-us = <7376>;
+ };
+
+ CLUSTER_1_SLEEP_0: cluster-sleep-1-0 {
+ /* GDHS */
+ compatible = "domain-idle-state";
+ arm,psci-suspend-param = <0x40000042>;
+ entry-latency-us = <314>;
+ exit-latency-us = <345>;
+ min-residency-us = <660>;
+ };
+
+ CLUSTER_1_SLEEP_1: cluster-sleep-1-1 {
+ /* Power Collapse */
+ compatible = "domain-idle-state";
+ arm,psci-suspend-param = <0x41000044>;
+ entry-latency-us = <640>;
+ exit-latency-us = <1654>;
+ min-residency-us = <8094>;
+ };
+ };
};
firmware {
@@ -201,6 +279,64 @@ pmu {
psci {
compatible = "arm,psci-1.0";
method = "smc";
+
+ CPU_PD0: power-domain-cpu0 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_0_PD>;
+ domain-idle-states = <&LITTLE_CPU_SLEEP_0>;
+ };
+
+ CPU_PD1: power-domain-cpu1 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_0_PD>;
+ domain-idle-states = <&LITTLE_CPU_SLEEP_0>;
+ };
+
+ CPU_PD2: power-domain-cpu2 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_0_PD>;
+ domain-idle-states = <&LITTLE_CPU_SLEEP_0>;
+ };
+
+ CPU_PD3: power-domain-cpu3 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_0_PD>;
+ domain-idle-states = <&LITTLE_CPU_SLEEP_0>;
+ };
+
+ CPU_PD4: power-domain-cpu4 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_1_PD>;
+ domain-idle-states = <&BIG_CPU_SLEEP_0>;
+ };
+
+ CPU_PD5: power-domain-cpu5 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_1_PD>;
+ domain-idle-states = <&BIG_CPU_SLEEP_0>;
+ };
+
+ CPU_PD6: power-domain-cpu6 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_1_PD>;
+ domain-idle-states = <&BIG_CPU_SLEEP_0>;
+ };
+
+ CPU_PD7: power-domain-cpu7 {
+ #power-domain-cells = <0>;
+ power-domains = <&CLUSTER_1_PD>;
+ domain-idle-states = <&BIG_CPU_SLEEP_0>;
+ };
+
+ CLUSTER_0_PD: power-domain-cpu-cluster0 {
+ #power-domain-cells = <0>;
+ domain-idle-states = <&CLUSTER_0_SLEEP_0>, <&CLUSTER_0_SLEEP_1>;
+ };
+
+ CLUSTER_1_PD: power-domain-cpu-cluster1 {
+ #power-domain-cells = <0>;
+ domain-idle-states = <&CLUSTER_1_SLEEP_0>, <&CLUSTER_1_SLEEP_1>;
+ };
};
reserved_memory: reserved-memory {
--
2.38.1
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