2023-12-18 16:06:54

by Konrad Dybcio

[permalink] [raw]
Subject: [PATCH 11/12] arm64: dts: qcom: sm8550: Separate out X3 idle state

The X3 core has different entry/exit/residency time requirements than
the big cluster. Denote them to stop confusing the scheduler.

Fixes: ffc50b2d3828 ("arm64: dts: qcom: Add base SM8550 dtsi")
Signed-off-by: Konrad Dybcio <[email protected]>
---
arch/arm64/boot/dts/qcom/sm8550.dtsi | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qcom/sm8550.dtsi
index d6edd54f3ad3..5143a08c4867 100644
--- a/arch/arm64/boot/dts/qcom/sm8550.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi
@@ -300,6 +300,16 @@ BIG_CPU_SLEEP_0: cpu-sleep-1-0 {
min-residency-us = <4791>;
local-timer-stop;
};
+
+ PRIME_CPU_SLEEP_0: cpu-sleep-2-0 {
+ compatible = "arm,idle-state";
+ idle-state-name = "goldplus-rail-power-collapse";
+ arm,psci-suspend-param = <0x40000004>;
+ entry-latency-us = <500>;
+ exit-latency-us = <1350>;
+ min-residency-us = <7480>;
+ local-timer-stop;
+ };
};

domain-idle-states {
@@ -401,7 +411,7 @@ 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 {

--
2.43.0