Re: [PATCH] drivers: base: add support to skip power management in device/driver model

[Sudeep Holla]

On Thu, Feb 07, 2019 at 04:18:57PM +0100, Ulf Hansson wrote:
> On Thu, 7 Feb 2019 at 16:06, Sudeep Holla <sudeep.holla@xxxxxxx> wrote:

[...]

> > Indeed, I was ignoring knowing that it's harmless. But more people
> > started to complain, and Rafael suggested this which I agree as we
> > have several pseudo devices created in the kernel that we can bypass
> > some of these pm handling knowing we won't need it.
>
> Okay, I see.
>
> Anyway, I will likely need to restore part of this change, via my
> cluster idling series then. As from that point, the cpu device that
> you call device_set_pm_not_required() for, starts to be used from both
> PM core and runtime PM point of view. But I guess that's okay then.
>

Ah I see. I can drop for CPU devices then. Since I didn't see any use for
them, I set the flag, but I can drop it now or you can do that as part
of that series. There are quite a few devices(especially the ones
registered under system subsys can set this but I would take it separate
once we settle on this). Also Rafael may have seen use for few more
devices when he suggested this.

--
Regards,
Sudeep