Re: [PATCH v5 14/18] PCI/pwrctl: add a power control driver for WCN7850

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On Thu, Feb 22, 2024 at 1:21 PM Mark Brown <broonie@xxxxxxxxxx> wrote:
>
> On Thu, Feb 22, 2024 at 10:22:50AM +0100, Bartosz Golaszewski wrote:
> > On Wed, Feb 21, 2024 at 12:44 AM Mark Brown <broonie@xxxxxxxxxx> wrote:
>
> > > Yes, that's the theory - I just question if it actually does something
> > > useful in practice.  Between regulators getting more and more able to
> > > figure out mode switching autonomously based on load monitoring and them
> > > getting more efficient it's become very unclear if this actually
> > > accomplishes anything, the only usage is the Qualcomm stuff and that's
> > > all really unsophisticated and has an air of something that's being
> > > cut'n'pasted forwards rather than delivering practical results.  There
> > > is some value at ultra low loads, but that's more for suspend modes than
> > > for actual use.
>
> > Removing it would be out of scope for this series and I don't really
> > want to introduce any undefined behavior when doing a big development
> > like that. I'll think about it separately.
>
> This is new code?

It's a new driver but Qualcomm standard has been to provide the load
values. If it's really unnecessary then maybe let's consider it
separately and possibly rework globally?

Bart





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