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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


  parent reply	other threads:[~2025-03-31 23:00 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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