linux-kernel - Re: [PATCH] power_supply: only register tosa

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Date:	Mon, 3 Nov 2008 19:25:47 +0300
From:	Anton Vorontsov <avorontsov@...mvista.com>
To:	Dmitry <dbaryshkov@...il.com>
Cc:	linux-kernel@...r.kernel.org, cbou@...l.ru,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] power_supply: only register tosa_battery driver on tosa

On Mon, Nov 03, 2008 at 07:20:06PM +0300, Dmitry wrote:
> 2008/11/3 Anton Vorontsov <avorontsov@...mvista.com>:
> > On Sun, Nov 02, 2008 at 11:36:08PM +0300, Dmitry wrote:
> >> 2008/10/29 Dmitry Baryshkov <dbaryshkov@...il.com>:
> >> > There are already several wm97xx-battery drivers. Do register the tosa one
> >> > only on tosa machines.
> >> >
> >> > Signed-off-by: Dmitry Baryshkov <dbaryshkov@...il.com>
> >> > ---
> >> >  drivers/power/tosa_battery.c |    3 +++
> >> >  1 files changed, 3 insertions(+), 0 deletions(-)
> >>
> >> What about this patch?
> >
> > Sorry for the delay.
> >
> >> IMO it can and should be merged during 2.6.28-rc cycle.
> >>
> >> diff --git a/drivers/power/tosa_battery.c b/drivers/power/tosa_battery.c
> >> index 2eab35a..4e52c22 100644
> >> --- a/drivers/power/tosa_battery.c
> >> +++ b/drivers/power/tosa_battery.c
> >> @@ -469,6 +469,9 @@ static struct platform_driver tosa_bat_driver = {
> >>
> >>  static int __init tosa_bat_init(void)
> >>  {
> >> +     if (!machine_is_tosa())
> >> +             return -EINVAL;
> >> +
> >
> > I tend to reject this approach. You should rename the driver instead.
> >
> > I.e.
> > -.driver.name    = "wm97xx-battery",
> > -.driver.name    = "tosa-battery",
> >
> > And make sure that this won't break users of that driver (though
> > I don't see any).
> 
> The wm97xx-battery device is registered by
> drivers/input/toucscreen/wm97xx-core.c

Hmm.. So you can't rename the tosa driver, because then it won't
work, correct?

-- 
Anton Vorontsov
email: cbouatmailru@...il.com
irc://irc.freenode.net/bd2
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