From: Will McVicker <willmcvicker@google.com>
To: "Catalin Marinas" <catalin.marinas@arm.com>,
"Will Deacon" <will@kernel.org>,
"Peter Griffin" <peter.griffin@linaro.org>,
"André Draszik" <andre.draszik@linaro.org>,
"Tudor Ambarus" <tudor.ambarus@linaro.org>,
"Rob Herring" <robh@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Alim Akhtar" <alim.akhtar@samsung.com>,
"Daniel Lezcano" <daniel.lezcano@linaro.org>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Saravana Kannan" <saravanak@google.com>
Cc: Will McVicker <willmcvicker@google.com>,
kernel-team@android.com, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
devicetree@vger.kernel.org, Will Deacon <willdeacon@google.com>
Subject: [PATCH v1 4/6] arm64: dts: exynos: gs101: Add 'local-timer-stop' to cpuidle nodes
Date: Mon, 31 Mar 2025 16:00:26 -0700 [thread overview]
Message-ID: <20250331230034.806124-5-willmcvicker@google.com> (raw)
In-Reply-To: <20250331230034.806124-1-willmcvicker@google.com>
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
next prev parent reply other threads:[~2025-03-31 23:09 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-31 23:00 [PATCH v1 0/6] Add module support for Arm64 Exynos MCT driver Will McVicker
2025-03-31 23:00 ` [PATCH v1 1/6] of/irq: Export of_irq_count for modules Will McVicker
2025-04-01 2:30 ` Rob Herring
2025-03-31 23:00 ` [PATCH v1 2/6] clocksource/drivers/exynos_mct: Don't register as a sched_clock on arm64 Will McVicker
2025-03-31 23:40 ` John Stultz
2025-04-01 16:50 ` William McVicker
2025-04-02 1:43 ` Youngmin Nam
2025-03-31 23:00 ` [PATCH v1 3/6] clocksource/drivers/exynos_mct: Set local timer interrupts as percpu Will McVicker
2025-03-31 23:45 ` John Stultz
2025-04-01 16:36 ` William McVicker
2025-04-02 2:32 ` Youngmin Nam
2025-04-02 22:39 ` William McVicker
2025-03-31 23:00 ` Will McVicker [this message]
2025-04-02 4:10 ` [PATCH v1 4/6] arm64: dts: exynos: gs101: Add 'local-timer-stop' to cpuidle nodes Youngmin Nam
2025-04-02 21:59 ` William McVicker
2025-04-03 3:59 ` Youngmin Nam
2025-04-03 18:39 ` William McVicker
2025-04-04 0:02 ` Youngmin Nam
2025-03-31 23:00 ` [PATCH v1 5/6] clocksource/drivers/exynos_mct: Add module support Will McVicker
2025-04-01 2:30 ` Rob Herring
2025-04-01 16:27 ` William McVicker
2025-04-01 6:36 ` Krzysztof Kozlowski
2025-04-01 16:27 ` William McVicker
2025-04-02 4:27 ` Youngmin Nam
2025-03-31 23:00 ` [PATCH v1 6/6] arm64: exynos: Drop select CLKSRC_EXYNOS_MCT Will McVicker
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