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

[Ulf Hansson]

On 5 February 2016 at 02:08, Tony Lindgren <tony at atomide.com> wrote:
> * Ulf Hansson <ulf.hansson at linaro.org> [160204 14:35]:
>> On 4 February 2016 at 23:09, Alan Stern <stern at rowland.harvard.edu> 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.

I don't get it. Why not? Because of another abuse of the runtime PM API?

Or we should probably continue to focus on fixing the regression. :-)

Kind regards
Uffe