linux-kernel - Re: [PATCH 2/3] OPP: Move required opps configuration to specialized callback

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Date:   Mon, 3 Apr 2023 09:59:08 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Ulf Hansson <ulf.hansson@...aro.org>
Cc:     Jun Nie <jun.nie@...aro.org>, Viresh Kumar <vireshk@...nel.org>,
        Nishanth Menon <nm@...com>, Stephen Boyd <sboyd@...nel.org>,
        linux-pm@...r.kernel.org,
        Vincent Guittot <vincent.guittot@...aro.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] OPP: Move required opps configuration to specialized
 callback

On 01-03-23, 14:06, Ulf Hansson wrote:
> On Wed, 22 Feb 2023 at 12:07, Viresh Kumar <viresh.kumar@...aro.org> wrote:
> >
> > The required-opps configuration is closely tied to genpd and performance
> > states at the moment and it is not very obvious that required-opps can
> > live without genpds. Though we don't support configuring required-opps
> > for non-genpd cases currently.
> >
> > This commit aims at separating these parts, where configuring genpds
> > would be a special case of configuring the required-opps.
> >
> > Add a specialized callback, set_required_opps(), to the opp table and
> > set it to different callbacks accordingly.
> >
> > This shouldn't result in any functional changes for now.
> >
> > Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
> 
> This looks reasonable to me, but I guess it also depends on whether
> you will land patch3 or not?

Not necessarily, its better to have a clear error path to avoid
unnecessary confusion.

I have applied first two patches now. Thanks.

-- 
viresh