Re: [PATCH v2 4/7] arm64: dts: exynos: gs101: Add 'local-timer-stop' to cpuidle nodes
From: Peter Griffin <peter.griffin@linaro.org>
Date: 2025-05-08 10:11:40
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Hi Will, On Thu, 3 Apr 2025 at 00:34, Will McVicker [off-list ref] wrote:
From: Will Deacon <redacted> 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 <redacted> [Original commit from https://android.googlesource.com/kernel/gs/+/a896fd98638047989513d05556faebd28a62b27c] Signed-off-by: Will McVicker <redacted> ---
Reviewed-by: Peter Griffin <peter.griffin@linaro.org> Tested-by: Peter Griffin <peter.griffin@linaro.org> Tested using gs101-oriole with linux-next plus this series. With these MCT timer changes and another series I will send shortly for exynos-pmu to program the correct hint to ACPM wakeup from c2 idle state is then functional.
quoted hunk ↗ jump to hunk
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