This is a note to let you know that I've just added the patch titled
arm64: dts: qcom: sm8550: Separate out X3 idle state
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm64-dts-qcom-sm8550-separate-out-x3-idle-state.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 7e39c6be5052ee615a87ab8490f9c76d0be12cbc
Author: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
Date: Mon Dec 18 17:02:12 2023 +0100
arm64: dts: qcom: sm8550: Separate out X3 idle state
[ Upstream commit 28b735232d5e16a34f98dbac1e7b5401c1c16d89 ]
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 <konrad.dybcio@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20231218-topic-8550_fixes-v1-11-ce1272d77540@xxxxxxxxxx
Signed-off-by: Bjorn Andersson <andersson@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qcom/sm8550.dtsi
index 045cef68a256..15d91ace8703 100644
--- a/arch/arm64/boot/dts/qcom/sm8550.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi
@@ -298,6 +298,16 @@ 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 {
@@ -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 {
