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arm64: dts: qcom: qcm2290: Add CPU idle states

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Add the (scarce) idle states for the individual CPUs, as well as the
whole cluster. This enables deeper-than-WFI cpuidle

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230606-topic-qcm2290_idlestates-v2-1-580a5a2d28c9@linaro.org
This commit is contained in:
Konrad Dybcio 2023-06-07 01:04:19 +02:00 committed by Bjorn Andersson
parent abc49a7c60
commit 4acf7eceed
1 changed files with 61 additions and 0 deletions
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61
arch/arm64/boot/dts/qcom/qcm2290.dtsi
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@ -48,6 +48,8 @@
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>;
@ -64,6 +66,8 @@
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 {
@ -76,6 +80,8 @@
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 {
@ -88,6 +94,8 @@
enable-method = "psci";
next-level-cache = <&L2_0>;
qcom,freq-domain = <&cpufreq_hw 0>;
power-domains = <&CPU_PD3>;
power-domain-names = "psci";
};
cpu-map {
@ -109,6 +117,30 @@
};
};
};
domain-idle-states {
CLUSTER_SLEEP: cluster-sleep-0 {
compatible = "domain-idle-state";
arm,psci-suspend-param = <0x41000043>;
entry-latency-us = <800>;
exit-latency-us = <2118>;
min-residency-us = <7376>;
};
};
idle-states {
entry-method = "psci";
CPU_SLEEP: cpu-sleep-0 {
compatible = "arm,idle-state";
idle-state-name = "power-collapse";
arm,psci-suspend-param = <0x40000003>;
entry-latency-us = <290>;
exit-latency-us = <376>;
min-residency-us = <1182>;
local-timer-stop;
};
};
};
firmware {
@ -134,6 +166,35 @@
psci {
compatible = "arm,psci-1.0";
method = "smc";
CPU_PD0: power-domain-cpu0 {
#power-domain-cells = <0>;
power-domains = <&CLUSTER_PD>;
domain-idle-states = <&CPU_SLEEP>;
};
CPU_PD1: power-domain-cpu1 {
#power-domain-cells = <0>;
power-domains = <&CLUSTER_PD>;
domain-idle-states = <&CPU_SLEEP>;
};
CPU_PD2: power-domain-cpu2 {
#power-domain-cells = <0>;
power-domains = <&CLUSTER_PD>;
domain-idle-states = <&CPU_SLEEP>;
};
CPU_PD3: power-domain-cpu3 {
#power-domain-cells = <0>;
power-domains = <&CLUSTER_PD>;
domain-idle-states = <&CPU_SLEEP>;
};
CLUSTER_PD: power-domain-cpu-cluster {
#power-domain-cells = <0>;
domain-idle-states = <&CLUSTER_SLEEP>;
};
};
reserved_memory: reserved-memory {