Issue About Power Manager on MX6DL

tony_l_cai — Tue, 09 Jun 2015 12:14:04 GMT

Hi,all

I find a strange problem that when our board entered into sleep,from the log ,we found that once the board "sabresd_suspend_enter" then "sabresd_suspend_exit",why? log is following:

[ 131.386809] ----suspend_enter----

[ 131.387652] ---------max_timeout:0-----------

[ 131.387658] power_suspend_late return 0

[ 131.387668] PM: late suspend of devices complete after 0.847 msecs

[ 131.387675] Disabling non-boot CPUs ...

[ 131.388498] CPU1: shutdown

[ 131.389154] ----syscore_suspend----

[ 131.389292] -----sabresd_suspend_enter--------

[ 131.389589] -----sabresd_suspend_exit--------

[ 131.389833] Enabling non-boot CPUs ...

[ 131.410766] CPU1: Booted secondary processor

[ 131.410782] Calibrating delay loop (skipped) already calibrated this CPU

[ 131.411156] i.MXC CPU frequency driver

[ 131.411203] CPU1 is up

[ 131.411800] PM: early resume of devices complete after 0.586 msecs

And this log has entered into suspend. You can see maybe it has exit suspend ? why?

Thanks~

Re: Issue About Power Manager on MX6DL

igorpadykov — Wed, 10 Jun 2015 00:41:51 GMT

Hi tony

processor will exit from low power mode if there is

enabled interrupt from some peripheral.

You can try to find it probably disabling some of them.

Best regards

igor

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i.MX ProcessorsのトピックIssue About Power Manager on MX6DL

Issue About Power Manager on MX6DL

Re: Issue About Power Manager on MX6DL