* [PATCH] ARM: mxs: Enable cpuidle
@ 2013-02-01 15:49 Fabio Estevam
2013-02-03 10:41 ` Shawn Guo
0 siblings, 1 reply; 3+ messages in thread
From: Fabio Estevam @ 2013-02-01 15:49 UTC (permalink / raw)
To: linux-arm-kernel
From: Fabio Estevam <fabio.estevam@freescale.com>
Enable CONFIG_CPU_IDLE, so that suspend/resume can be tested on mxs platforms.
Tested on a mx28evk board:
$ echo enabled > /sys/devices/80000000.apb/80040000.apbx/80074000.serial/tty/ttyAMA0/power/wakeup
$ echo mem > /sys/power/state
[ 507.040000] PM: Syncing filesystems ... done.
[ 507.060000] mmc0: card e624 removed
[ 507.160000] Freezing user space processes ... (elapsed 0.01 seconds) done.
[ 507.180000] Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done.
[ 507.200000] Suspending console(s) (use no_console_suspend to debug)
(Then send any character via AUART to wakeup the system).
[ 507.220000] PM: suspend of devices complete after 10.468 msecs
[ 507.220000] PM: late suspend of devices complete after 3.531 msecs
[ 507.230000] PM: noirq suspend of devices complete after 5.187 msecs
[ 507.230000] PM: noirq resume of devices complete after 2.312 msecs
[ 507.230000] PM: early resume of devices complete after 2.437 msecs
[ 507.320000] PM: resume of devices complete after 81.312 msecs
[ 507.360000] Restarting tasks ... done.
[ 507.530000] mmc0: new SDHC card at address e624
[ 507.550000] mmcblk0: mmc0:e624 SU04G 3.69 GiB
[ 507.560000] mmcblk0: p1 p2 p3
[ 509.240000] libphy: 800f0000.etherne:01 - Link is Down
[ 511.240000] libphy: 800f0000.etherne:01 - Link is Up
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
arch/arm/configs/mxs_defconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/configs/mxs_defconfig b/arch/arm/configs/mxs_defconfig
index 7bf5351..7bf9aba 100644
--- a/arch/arm/configs/mxs_defconfig
+++ b/arch/arm/configs/mxs_defconfig
@@ -29,6 +29,7 @@ CONFIG_HIGH_RES_TIMERS=y
CONFIG_PREEMPT_VOLUNTARY=y
CONFIG_AEABI=y
CONFIG_AUTO_ZRELADDR=y
+CONFIG_CPU_IDLE=y
CONFIG_FPE_NWFPE=y
CONFIG_NET=y
CONFIG_PACKET=y
--
1.7.9.5
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH] ARM: mxs: Enable cpuidle
2013-02-01 15:49 [PATCH] ARM: mxs: Enable cpuidle Fabio Estevam
@ 2013-02-03 10:41 ` Shawn Guo
2013-02-06 21:24 ` Fabio Estevam
0 siblings, 1 reply; 3+ messages in thread
From: Shawn Guo @ 2013-02-03 10:41 UTC (permalink / raw)
To: linux-arm-kernel
On Fri, Feb 01, 2013 at 01:49:57PM -0200, Fabio Estevam wrote:
> From: Fabio Estevam <fabio.estevam@freescale.com>
>
> Enable CONFIG_CPU_IDLE, so that suspend/resume can be tested on mxs platforms.
>
I do not think suspend depends on CONFIG_CPU_IDLE to work. Can you
investigate the root cause why suspend does not work without enabling
CONFIG_CPU_IDLE?
Shawn
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH] ARM: mxs: Enable cpuidle
2013-02-03 10:41 ` Shawn Guo
@ 2013-02-06 21:24 ` Fabio Estevam
0 siblings, 0 replies; 3+ messages in thread
From: Fabio Estevam @ 2013-02-06 21:24 UTC (permalink / raw)
To: linux-arm-kernel
On Sun, Feb 3, 2013 at 8:41 AM, Shawn Guo <shawn.guo@linaro.org> wrote:
> I do not think suspend depends on CONFIG_CPU_IDLE to work. Can you
> investigate the root cause why suspend does not work without enabling
> CONFIG_CPU_IDLE?
Ok, I managed to get suspend/resume working without turning on CONFIG_CPU_IDLE.
Will send the patch soon.
^ permalink raw reply [flat|nested] 3+ messages in thread
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