linux-kernel - Re: [PATCH] cpuidle: psci: Extend information in log about OSI/PC mode

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Message-ID: <CAPDyKFpo_JhpGRZwJExMxPoit7yzp_LByfUEbkkLZxgUdNGRFw@mail.gmail.com>
Date:   Tue, 25 Oct 2022 15:17:50 +0200
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     "Rafael J. Wysocki" <rafael@...nel.org>
Cc:     "Rafael J . Wysocki" <rjw@...ysocki.net>, linux-pm@...r.kernel.org,
        Johan Hovold <johan@...nel.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Sudeep Holla <sudeep.holla@....com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] cpuidle: psci: Extend information in log about OSI/PC mode

On Tue, 25 Oct 2022 at 15:16, Rafael J. Wysocki <rafael@...nel.org> wrote:
>
> On Thu, Oct 20, 2022 at 1:55 PM Ulf Hansson <ulf.hansson@...aro.org> wrote:
> >
> > It's useful to understand whether we are using OS-initiated (OSI) mode or
> > Platform Coordinated (PC) mode, when initializing the CPU PM domains.
> > Therefore, let's extend the print in the log after a successful probe with
> > this information.
> >
> > Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
> > ---
> >  drivers/cpuidle/cpuidle-psci-domain.c | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/cpuidle/cpuidle-psci-domain.c b/drivers/cpuidle/cpuidle-psci-domain.c
> > index 821984947ed9..c80cf9ddabd8 100644
> > --- a/drivers/cpuidle/cpuidle-psci-domain.c
> > +++ b/drivers/cpuidle/cpuidle-psci-domain.c
> > @@ -181,7 +181,8 @@ static int psci_cpuidle_domain_probe(struct platform_device *pdev)
> >         if (ret)
> >                 goto remove_pd;
> >
> > -       pr_info("Initialized CPU PM domain topology\n");
> > +       pr_info("Initialized CPU PM domain topology using %s mode\n",
> > +               use_osi ? "OSI" : "PC");
> >         return 0;
> >
> >  put_node:
> > --
>
> Am I expected to pick up this one?

Yes, please!

Kind regards
Uffe