From: stefan@agner.ch (Stefan Agner)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/7] ARM: imx: add timer stop flag to ARM power off state
Date: Tue, 2 Jan 2018 17:42:17 +0100 [thread overview]
Message-ID: <20180102164223.15230-1-stefan@agner.ch> (raw)
When the CPU is in ARM power off state the ARM architected
timers are stopped. The flag is already present in the higher
power WAIT mode.
This allows to use the ARM generic timer on i.MX 6UL/6ULL SoC.
Without the flag the kernel freezes when the timer enters the
first time ARM power off mode.
Cc: Anson Huang <anson.huang@nxp.com>
Signed-off-by: Stefan Agner <stefan@agner.ch>
---
arch/arm/mach-imx/cpuidle-imx6sx.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/mach-imx/cpuidle-imx6sx.c b/arch/arm/mach-imx/cpuidle-imx6sx.c
index c5a5c3a70ab1..d0f14b761ff7 100644
--- a/arch/arm/mach-imx/cpuidle-imx6sx.c
+++ b/arch/arm/mach-imx/cpuidle-imx6sx.c
@@ -89,6 +89,7 @@ static struct cpuidle_driver imx6sx_cpuidle_driver = {
*/
.exit_latency = 300,
.target_residency = 500,
+ .flags = CPUIDLE_FLAG_TIMER_STOP,
.enter = imx6sx_enter_wait,
.name = "LOW-POWER-IDLE",
.desc = "ARM power off",
--
2.15.1
next reply other threads:[~2018-01-02 16:42 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-02 16:42 Stefan Agner [this message]
2018-01-02 16:42 ` [PATCH 2/7] ARM: dts: imx6ul: update i.MX 6UltraLite iomux headers Stefan Agner
2018-01-05 16:45 ` Rob Herring
2018-01-06 10:47 ` Stefan Agner
2018-01-08 1:37 ` Andy Duan
2018-01-09 9:24 ` Dong Aisheng
2018-01-02 16:42 ` [PATCH 3/7] ARM: dts: imx6ull: add additional pinfunc defines for i.MX 6ULL Stefan Agner
2018-01-05 16:49 ` Rob Herring
2018-01-07 9:52 ` Stefan Agner
2018-01-09 9:30 ` Dong Aisheng
2018-01-02 16:42 ` [PATCH 4/7] ARM: dts: imx6ul: add interrupt of virt-capable GIC Stefan Agner
2018-01-02 16:42 ` [PATCH 5/7] ARM: dts: imx6ul: add ARM architected timer Stefan Agner
2018-01-09 9:34 ` Dong Aisheng
2018-01-09 13:18 ` Stefan Agner
2018-01-02 16:42 ` [PATCH 6/7] ARM: dts: imx6ull: add IOMUXC SNVS instance Stefan Agner
2018-01-09 9:35 ` Dong Aisheng
2018-01-02 16:42 ` [PATCH 7/7] ARM: dts: imx6ull: add UART8 support Stefan Agner
2018-01-09 9:38 ` Dong Aisheng
2018-01-09 9:22 ` [PATCH 1/7] ARM: imx: add timer stop flag to ARM power off state Dong Aisheng
2018-01-09 9:25 ` Anson Huang
2018-01-09 10:13 ` Lucas Stach
2018-01-09 13:37 ` Stefan Agner
2018-01-09 14:04 ` Lucas Stach
2018-01-09 22:21 ` Stefan Agner
2018-01-09 13:22 ` Stefan Agner
2018-01-10 17:48 ` Lucas Stach
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