linux-kernel - Re: [PATCH v2 07/10] pinctrl: mediatek: Switch to use DEFINE_NOIRQ_DEV_PM

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Message-ID: <CAHp75VdehQnE+NvD1Pj_VZrj-gdHZow+kqyud_T8=3Z-YB-C7g@mail.gmail.com>
Date:   Tue, 18 Jul 2023 15:48:00 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Paul Cercueil <paul@...pouillou.net>
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Balsam CHIHI <bchihi@...libre.com>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Thierry Reding <thierry.reding@...il.com>,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-renesas-soc@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-pm@...r.kernel.org, Andy Shevchenko <andy@...nel.org>,
        Sean Wang <sean.wang@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Andrew Lunn <andrew@...n.ch>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Ludovic Desroches <ludovic.desroches@...rochip.com>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>
Subject: Re: [PATCH v2 07/10] pinctrl: mediatek: Switch to use
 DEFINE_NOIRQ_DEV_PM_OPS() helper

On Mon, Jul 17, 2023 at 10:57 PM Paul Cercueil <paul@...pouillou.net> wrote:
> Le lundi 17 juillet 2023 à 22:36 +0300, Andy Shevchenko a écrit :
> > On Mon, Jul 17, 2023 at 10:07 PM Paul Cercueil <paul@...pouillou.net>
> > wrote:
> > > Le lundi 17 juillet 2023 à 20:28 +0300, Andy Shevchenko a écrit :

...

> > > > +DEFINE_NOIRQ_DEV_PM_OPS(mtk_paris_pinctrl_pm_ops,
> > > > mtk_paris_suspend,
> > > > mtk_paris_resume);
> > >
> > > It's a bit more work, but I think you should use
> > > EXPORT_GPL_DEV_PM_OPS
> > > (or even better, EXPORT_NS_GPL_DEV_PM_OPS) so that the dev_pm_ops
> > > is
> > > conditionally exported. All callers would have to be updated to use
> > > pm_ptr().
> >
> > Why pm_ptr()? What did I miss?
> > The rest is OK.
>
> Or pm_sleep_ptr(). As I said in my answer to the other patch,
> EXPORT_*_DEV_PM_OPS() currently only exports on CONFIG_PM, so it
> doesn't really matter which one you use.

Yes, I need to think about it. I don't like the inconsistency the
EXPORT*PM_OPS() brings in this case.

-- 
With Best Regards,
Andy Shevchenko