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

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Date:   Mon, 17 Jul 2023 21:56:59 +0200
From:   Paul Cercueil <paul@...pouillou.net>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
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

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.

Cheers,
-Paul