linux-kernel - Re: [PATCH v2 2/3] power: gpio-charger: add device tree support

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Date:	Tue, 23 Sep 2014 14:03:17 +0200
From:	Heiko Stübner <heiko@...ech.de>
To:	Doug Anderson <dianders@...omium.org>
Cc:	sre@...nel.org, Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	David Woodhouse <dwmw2@...radead.org>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Rob Herring <robh+dt@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Pawel Moll <pawel.moll@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>
Subject: Re: [PATCH v2 2/3] power: gpio-charger: add device tree support

Am Montag, 22. September 2014, 09:48:33 schrieb Doug Anderson:
> > @@ -196,6 +255,7 @@ static struct platform_driver gpio_charger_driver = {
> > 
> >                 .name = "gpio-charger",
> >                 .owner = THIS_MODULE,
> >                 .pm = &gpio_charger_pm_ops,
> > 
> > +               .of_match_table = of_match_ptr(gpio_charger_match),
> 
> Given that you don't have any #ifdefs with "CONFIG_OF", I think
> gpio_charger_match will always exist.  It seems like you should remove
> the of_match_ptr or add some #ifdefs.  I can't quite keep up with what
> the currently suggested best practice is here, though.

I've kept the of_match_ptr in v3. The dt parsing functions (of_read_foo,...) 
define stubs for the !CONFIG_OF case which we use here in this case and 
of_match_ptr is also defined differently for both OF and !OF, so it feels like 
it should be there ;-)


Heiko
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