Messages in this thread |  | | From | Vincent Guittot <> | | Date | Tue, 8 Jan 2019 08:59:56 +0100 | | Subject | Re: Regression in v5.0-rc1 with autosuspend hrtimers |
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Hi Tony,
On Tue, 8 Jan 2019 at 00:38, Tony Lindgren <tony@atomide.com> 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 >
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