devicetree.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
* [PATCH 1/7] ARM: imx: add timer stop flag to ARM power off state
@ 2018-01-02 16:42 Stefan Agner
  2018-01-02 16:42 ` [PATCH 2/7] ARM: dts: imx6ul: update i.MX 6UltraLite iomux headers Stefan Agner
                   ` (5 more replies)
  0 siblings, 6 replies; 26+ messages in thread
From: Stefan Agner @ 2018-01-02 16:42 UTC (permalink / raw)
  To: shawnguo-DgEjT+Ai2ygdnm+yROfE0A, kernel-bIcnvbaLZ9MEGnE8C9+IrQ
  Cc: fabio.estevam-3arQi8VN3Tc, robh+dt-DgEjT+Ai2ygdnm+yROfE0A,
	mark.rutland-5wv7dgnIgG8,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
	devicetree-u79uwXL29TY76Z2rM5mHXA,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA, Stefan Agner, Anson Huang

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-3arQi8VN3Tc@public.gmane.org>
Signed-off-by: Stefan Agner <stefan-XLVq0VzYD2Y@public.gmane.org>
---
 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

--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

^ permalink raw reply related	[flat|nested] 26+ messages in thread

end of thread, other threads:[~2018-01-10 17:48 UTC | newest]

Thread overview: 26+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-01-02 16:42 [PATCH 1/7] ARM: imx: add timer stop flag to ARM power off state Stefan Agner
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
     [not found]   ` <20180102164223.15230-3-stefan-XLVq0VzYD2Y@public.gmane.org>
2018-01-05 16:49     ` Rob Herring
2018-01-07  9:52       ` Stefan Agner
     [not found]         ` <b183c2a38596cd3f3726777c79e027f9-XLVq0VzYD2Y@public.gmane.org>
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
     [not found]   ` <20180102164223.15230-5-stefan-XLVq0VzYD2Y@public.gmane.org>
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
     [not found] ` <20180102164223.15230-1-stefan-XLVq0VzYD2Y@public.gmane.org>
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
     [not found]         ` <1515492803.12538.29.camel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
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

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).