Subject: PM regression with commit 5de85b9d57ab PM runtime re-init in v4.5-rc1

From: [email-masked] (Tony Lindgren)
Date: Thu, 4 Feb 2016 17:08:11 -0800

* Ulf Hansson <[email-masked]> [160204 14:35]:
> On 4 February 2016 at 23:09, Alan Stern <[email-masked]> wrote:
> > On Thu, 4 Feb 2016, Ulf Hansson wrote:
> >
> >> I am really not questioning the autosuspend feature at all, it's a
> >> really great feature!
> >>
> >> Now, I question the minor benefit we actually gain from having the
> >> runtime PM core to update the mark in rpm_resume().
> >
> > As Tony pointed out, it prevents some devices from going to sleep right
> > away.
> 
> Because their drivers don't care to update the last busy mark!?

Nope. Without that devices may never resume at all so the drivers
can't do anything about it.

Regards,

Tony