From mboxrd@z Thu Jan 1 00:00:00 1970 From: pavel@ucw.cz (Pavel Machek) Date: Tue, 6 Jun 2017 21:25:54 +0200 Subject: [[PATCH]] drivers: leds/trigger: system cannot enter suspend In-Reply-To: <1496716596-45414-1-git-send-email-bo.zhang@nxp.com> References: <1496716596-45414-1-git-send-email-bo.zhang@nxp.com> Message-ID: <20170606192554.GA32171@amd> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tue 2017-06-06 10:36:36, Zhang Bo wrote: > System cannot enter suspend mode because of heartbeat led trigger. > In autosleep_wq, try_to_suspend function will try to enter suspend > mode in specific period. it will get wakeup_count then call pm_notifier > chain callback function and freeze processes. > Heartbeat_pm_notifier is called and it call led_trigger_unregister to > change the trigger of led device to none. It will send uevent Why is heartbeat_pm_notifier calling led_trigger_unregister? That sounds like a bug. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 181 bytes Desc: Digital signature URL: