From: "Eric Bénard" <eric@eukrea.com>
To: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH 2/7] mfd: add mc34708 driver
Date: Tue, 21 Feb 2012 14:22:55 +0100 [thread overview]
Message-ID: <20120221142255.547a4e67@eb-e6520> (raw)
In-Reply-To: <20120221130318.GJ9343@game.jcrosoft.org>
Le Tue, 21 Feb 2012 14:03:18 +0100,
Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> a écrit :
> On 08:03 Tue 21 Feb , Eric Bénard wrote:
> > Le Tue, 21 Feb 2012 04:48:35 +0100,
> > Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> a écrit :
> >
> > > > +static struct mc34708 *mc_dev;
> > > > +
> > > > +struct mc34708 *mc34708_get(void)
> > > > +{
> > > > + if (!mc_dev)
> > > > + return NULL;
> > > > +
> > > > + return mc_dev;
> > > > +}
> > > > +EXPORT_SYMBOL(mc34708_get);
> > > no please do not export the current as it will not alloe multiple chip on
> > > board
> > you can't have more than one of this chip on the board connected to
> > the same CPU.
> except if you have 2 soc on the same board
>
that's why I said "connected to the same CPU".
If you have 2 SOC, each SOC will have its own PMIC thus it's own
barebox, thus no problem.
> here you use it to detect the presence of the device where we can detect it by
> the presence of the dev file
in the future we will also use that to write to the PMIC (as done on
mx35-3stack for example).
Eric
--
http://eukrea.com/en/news/104-2012
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next prev parent reply other threads:[~2012-02-21 13:23 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-21 0:27 [PATCH 1/7] add i2c clock support Eric Bénard
2012-02-21 0:27 ` [PATCH 2/7] mfd: add mc34708 driver Eric Bénard
2012-02-21 3:48 ` Jean-Christophe PLAGNIOL-VILLARD
2012-02-21 7:03 ` Eric Bénard
2012-02-21 13:03 ` Jean-Christophe PLAGNIOL-VILLARD
2012-02-21 13:22 ` Eric Bénard [this message]
2012-02-21 14:10 ` Jean-Christophe PLAGNIOL-VILLARD
2012-02-21 15:35 ` Eric Bénard
2012-02-21 15:38 ` Jean-Christophe PLAGNIOL-VILLARD
2012-02-21 20:45 ` Sascha Hauer
2012-02-21 21:09 ` Marc Reilly
2012-02-21 0:27 ` [PATCH 3/7] i.MX53: add silicn revision functions Eric Bénard
2012-02-22 7:33 ` Sascha Hauer
2012-02-27 8:20 ` [PATCH v2 1/7] add i2c clock support Eric Bénard
2012-02-27 8:20 ` [PATCH v2 2/7] mfd: add mc34708 driver Eric Bénard
2012-02-27 8:20 ` [PATCH v2 3/7] i.MX53: add silicon revision functions Eric Bénard
2012-02-27 8:20 ` [PATCH v2 4/7] i.MX53: enable pull up on I2C0 pins Eric Bénard
2012-02-27 8:20 ` [PATCH v2 5/7] mx53-loco: add i2c support Eric Bénard
2012-02-27 8:20 ` [PATCH v2 6/7] mx53-loco: add board revision support Eric Bénard
2012-02-27 15:40 ` Jean-Christophe PLAGNIOL-VILLARD
2012-02-27 18:58 ` Sascha Hauer
2012-02-27 8:20 ` [PATCH v2 7/7] mx53-loco: update defconfig Eric Bénard
2012-02-27 18:59 ` [PATCH v2 1/7] add i2c clock support Sascha Hauer
2012-02-21 0:27 ` [PATCH 4/7] i.MX53: enable pull up on I2C0 pins Eric Bénard
2012-02-21 0:27 ` [PATCH 5/7] mx53-loco: add i2c support Eric Bénard
2012-02-21 0:27 ` [PATCH 6/7] mx53-loco: add board revision support Eric Bénard
2012-02-21 3:50 ` Jean-Christophe PLAGNIOL-VILLARD
2012-02-21 0:27 ` [PATCH 7/7] mx53-loco: update defconfig Eric Bénard
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