The idle residency times are largely too low according to the vendor
kernel (maybe they came from an earlier release or something), especially
for the prime X2 core. Fix them.
Fixes: ffc50b2d3828 ("arm64: dts: qcom: Add base SM8550 dtsi")
Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/sm8550.dtsi | 32 +++++++++++++++++++++-----------
1 file changed, 21 insertions(+), 11 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qcom/sm8550.dtsi
index d115960bdeec..c21ba6afa752 100644
--- a/arch/arm64/boot/dts/qcom/sm8550.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi
@@ -283,9 +283,9 @@ 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 = <800>;
+ entry-latency-us = <550>;
exit-latency-us = <750>;
- min-residency-us = <4090>;
+ min-residency-us = <6700>;
local-timer-stop;
};
@@ -294,8 +294,18 @@ BIG_CPU_SLEEP_0: cpu-sleep-1-0 {
idle-state-name = "gold-rail-power-collapse";
arm,psci-suspend-param = <0x40000004>;
entry-latency-us = <600>;
- exit-latency-us = <1550>;
- min-residency-us = <4791>;
+ exit-latency-us = <1300>;
+ min-residency-us = <8136>;
+ local-timer-stop;
+ };
+
+ PRIME_CPU_SLEEP_0: cpu-sleep-2-0 {
+ compatible = "arm,idle-state";
+ idle-state-name = "gold-plus-rail-power-collapse";
+ arm,psci-suspend-param = <0x40000004>;
+ entry-latency-us = <500>;
+ exit-latency-us = <1350>;
+ min-residency-us = <7480>;
local-timer-stop;
};
};
@@ -304,17 +314,17 @@ domain-idle-states {
CLUSTER_SLEEP_0: cluster-sleep-0 {
compatible = "domain-idle-state";
arm,psci-suspend-param = <0x41000044>;
- entry-latency-us = <1050>;
- exit-latency-us = <2500>;
- min-residency-us = <5309>;
+ entry-latency-us = <750>;
+ exit-latency-us = <2350>;
+ min-residency-us = <9144>;
};
CLUSTER_SLEEP_1: cluster-sleep-1 {
compatible = "domain-idle-state";
arm,psci-suspend-param = <0x4100c344>;
- entry-latency-us = <2700>;
- exit-latency-us = <3500>;
- min-residency-us = <13959>;
+ entry-latency-us = <2800>;
+ exit-latency-us = <4400>;
+ min-residency-us = <10150>;
};
};
};
@@ -398,7 +408,7 @@ CPU_PD6: power-domain-cpu6 {
CPU_PD7: power-domain-cpu7 {
#power-domain-cells = <0>;
power-domains = <&CLUSTER_PD>;
- domain-idle-states = <&BIG_CPU_SLEEP_0>;
+ domain-idle-states = <&PRIME_CPU_SLEEP_0>;
};
CLUSTER_PD: power-domain-cluster {
--
2.42.0
