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arm64: dts: qcom: sc7280: Add cpuidle states
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Add cpuidle states for little and big cpus.
The latency values are preliminary placeholders and will be updated
once testing provides the real numbers.

Signed-off-by: Maulik Shah <[email protected]>
Signed-off-by: Rajendra Nayak <[email protected]>
Reviewed-by: Stephen Boyd <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>
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@mkshahc @andersson
mkshahc authored and andersson committed Mar 12, 2021
1 parent 14abf8d commit 0ef5463
Showing 1 changed file with 78 additions and 0 deletions.
78 changes: 78 additions & 0 deletions arch/arm64/boot/dts/qcom/sc7280.dtsi
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Original file line number Diff line number Diff line change
Expand Up @@ -63,6 +63,9 @@
compatible = "arm,kryo";
reg = <0x0 0x0>;
enable-method = "psci";
cpu-idle-states = <&LITTLE_CPU_SLEEP_0
&LITTLE_CPU_SLEEP_1
&CLUSTER_SLEEP_0>;
next-level-cache = <&L2_0>;
L2_0: l2-cache {
compatible = "cache";
Expand All @@ -78,6 +81,9 @@
compatible = "arm,kryo";
reg = <0x0 0x100>;
enable-method = "psci";
cpu-idle-states = <&LITTLE_CPU_SLEEP_0
&LITTLE_CPU_SLEEP_1
&CLUSTER_SLEEP_0>;
next-level-cache = <&L2_100>;
L2_100: l2-cache {
compatible = "cache";
Expand All @@ -90,6 +96,9 @@
compatible = "arm,kryo";
reg = <0x0 0x200>;
enable-method = "psci";
cpu-idle-states = <&LITTLE_CPU_SLEEP_0
&LITTLE_CPU_SLEEP_1
&CLUSTER_SLEEP_0>;
next-level-cache = <&L2_200>;
L2_200: l2-cache {
compatible = "cache";
Expand All @@ -102,6 +111,9 @@
compatible = "arm,kryo";
reg = <0x0 0x300>;
enable-method = "psci";
cpu-idle-states = <&LITTLE_CPU_SLEEP_0
&LITTLE_CPU_SLEEP_1
&CLUSTER_SLEEP_0>;
next-level-cache = <&L2_300>;
L2_300: l2-cache {
compatible = "cache";
Expand All @@ -114,6 +126,9 @@
compatible = "arm,kryo";
reg = <0x0 0x400>;
enable-method = "psci";
cpu-idle-states = <&BIG_CPU_SLEEP_0
&BIG_CPU_SLEEP_1
&CLUSTER_SLEEP_0>;
next-level-cache = <&L2_400>;
L2_400: l2-cache {
compatible = "cache";
Expand All @@ -126,6 +141,9 @@
compatible = "arm,kryo";
reg = <0x0 0x500>;
enable-method = "psci";
cpu-idle-states = <&BIG_CPU_SLEEP_0
&BIG_CPU_SLEEP_1
&CLUSTER_SLEEP_0>;
next-level-cache = <&L2_500>;
L2_500: l2-cache {
compatible = "cache";
Expand All @@ -138,6 +156,9 @@
compatible = "arm,kryo";
reg = <0x0 0x600>;
enable-method = "psci";
cpu-idle-states = <&BIG_CPU_SLEEP_0
&BIG_CPU_SLEEP_1
&CLUSTER_SLEEP_0>;
next-level-cache = <&L2_600>;
L2_600: l2-cache {
compatible = "cache";
Expand All @@ -150,12 +171,69 @@
compatible = "arm,kryo";
reg = <0x0 0x700>;
enable-method = "psci";
cpu-idle-states = <&BIG_CPU_SLEEP_0
&BIG_CPU_SLEEP_1
&CLUSTER_SLEEP_0>;
next-level-cache = <&L2_700>;
L2_700: l2-cache {
compatible = "cache";
next-level-cache = <&L3_0>;
};
};

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>;
entry-latency-us = <549>;
exit-latency-us = <901>;
min-residency-us = <1774>;
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 = <702>;
exit-latency-us = <915>;
min-residency-us = <4001>;
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 = <523>;
exit-latency-us = <1244>;
min-residency-us = <2207>;
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 = <526>;
exit-latency-us = <1854>;
min-residency-us = <5555>;
local-timer-stop;
};

CLUSTER_SLEEP_0: cluster-sleep-0 {
compatible = "arm,idle-state";
idle-state-name = "cluster-power-down";
arm,psci-suspend-param = <0x40003444>;
entry-latency-us = <3263>;
exit-latency-us = <6562>;
min-residency-us = <9926>;
local-timer-stop;
};
};
};

memory@80000000 {
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