* Vincent Guittot <vincent.guittot@xxxxxxxxxx> [190108 16:42]: > On Tue, 8 Jan 2019 at 16:53, Tony Lindgren <tony@xxxxxxxxxxx> wrote: > > Hmm so could it be that we now rely on timers that that may > > not be capable of waking up the system from idle states with > > hrtimer? > > With nohz and hrtimer enabled, timer relies on hrtimer to generate > the tick so you should use the same interrupt. OK yeah looks like that part is working just fine. Adding some printks and debugging over ssh, looks like omap8250_runtime_resume() gets called just fine based on a wakeirq, but then omap8250_runtime_suspend() runs immediately instead of waiting for the three second timeout. Lowering the autosuspend_delay_ms to 2100 ms makes things work again. Anything higher than 2200 ms seems to somehow time out immediately now :) Regards, Tony
