AnsweredAssumed Answered

imx6ul:wakeup times for Deep-Sleep  mode

Question asked by 益 李 on Aug 8, 2016
Latest reply on Aug 8, 2016 by igorpadykov

hi

when i bootup .

root@imx6ulevk:~# echo mem > /sys/power/state
PM: Syncing filesystems ... done.
PM: Preparing system for mem sleep
Freezing user space processes ... (elapsed 0.007 seconds) done.
Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
PM: Entering mem sleep
Suspending console(s) (use no_console_suspend to debug)

 

wake up by the key。

 

PM: suspend of devices complete after 709.804 msecs

PM: suspend devices took 0.710 seconds

PM: late suspend of devices complete after 0.961 msecs

PM: noirq suspend of devices complete after 1.051 msecs

Disabling non-boot CPUs ...

Turn off M/F mix!

PM: noirq resume of devices complete after 0.601 msecs

imx-sdma 20ec000.sdma: loaded firmware 3.2

PM: early resume of devices complete after 0.950 msecs

PM: resume of devices complete after 229.608 msecs

PM: resume devices took 0.230 seconds

PM: Finishing wakeup.

 

BSP:

Linux imx6ulevk 3.14.52-1.1.0_ga+g5f6f0a5 #1 SMP PREEMPT Fri Aug 5 15:54:13 CST 2016 armv7l GNU/Linux

 

the info show that:

it's spend several hundred milliseconds time to wakeup.

but i wan to wake up less then 50ms.

can i do some thing to achieve this?

 

if this mode(Deep-Sleep  mode) not apply to fast wake up(less than  50ms)?

 

thanks!

Outcomes