[PATCH v2 4/7] arm64: dts: exynos: gs101: Add 'local-timer-stop' to cpuidle nodes

Will McVicker
2025-04-03T00:03:16Z

From: Will Deacon <willdeacon@google.com>

In preparation for switching to the architected timer as the primary
clockevents device, mark the cpuidle nodes with the 'local-timer-stop'
property to indicate that an alternative clockevents device must be
used for waking up from the "c2" idle state.

Signed-off-by: Will Deacon <willdeacon@google.com>
[Original commit from https://android.googlesource.com/kernel/gs/+/a896fd98638047989513d05556faebd28a62b27c]
Signed-off-by: Will McVicker <willmcvicker@google.com>
---
arch/arm64/boot/dts/exynos/google/gs101.dtsi | 3 +++
1 file changed, 3 insertions(+)

diff --git a/arch/arm64/boot/dts/exynos/google/gs101.dtsi b/arch/arm64/boot/dts/exynos/google/gs101.dtsi
index 3de3a758f113..fd0badf24e6f 100644
--- a/arch/arm64/boot/dts/exynos/google/gs101.dtsi
+++ b/arch/arm64/boot/dts/exynos/google/gs101.dtsi
@@ -155,6 +155,7 @@ ananke_cpu_sleep: cpu-ananke-sleep {
idle-state-name = "c2";
compatible = "arm,idle-state";
arm,psci-suspend-param = <0x0010000>;
+ local-timer-stop;
entry-latency-us = <70>;
exit-latency-us = <160>;
min-residency-us = <2000>;
@@ -164,6 +165,7 @@ enyo_cpu_sleep: cpu-enyo-sleep {
idle-state-name = "c2";
compatible = "arm,idle-state";
arm,psci-suspend-param = <0x0010000>;
+ local-timer-stop;
entry-latency-us = <150>;
exit-latency-us = <190>;
min-residency-us = <2500>;
@@ -173,6 +175,7 @@ hera_cpu_sleep: cpu-hera-sleep {
idle-state-name = "c2";
compatible = "arm,idle-state";
arm,psci-suspend-param = <0x0010000>;
+ local-timer-stop;
entry-latency-us = <235>;
exit-latency-us = <220>;
min-residency-us = <3500>;
--
2.49.0.472.ge94155a9ec-goog