Hi Tony, On Tue, 8 Jan 2019 at 00:38, Tony Lindgren <tony@xxxxxxxxxxx> wrote: > > Hi all, > > Looks like commit 8234f6734c5d ("PM-runtime: Switch autosuspend > over to using hrtimers") caused a regression on at least > omap5-uevm where 8250 UART rx wake no longer works. I have not > noticed this happening on others so far. > > The devices I've tested all are using 8250 with dedicated > wakeirqs configured for the rx pin. I can see the interrupt > increase on omap5-uevm after some one or more keypresses, > but then nothing. It seems that the uart just falls back > asleep right away or something. > > Any ideas what might be going wrong? What is the autosuspend value ? Can it be that the autosuspend is set to a short value but was finally greater than 10-20ms on arm32. And now the autosuspend happens before and this has changed the sequence ? Regards, Vincent > > Regards, > > Tony >