linux-kernel - Re: [PATCH 4/4] RX-51: Add platform function and data for bq24150a charger

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Message-ID: <20130923204714.GB22995@earth.universe>
Date:	Mon, 23 Sep 2013 22:47:15 +0200
From:	Sebastian Reichel <sre@...g0.de>
To:	Pali Rohár <pali.rohar@...il.com>
Cc:	Tony Lindgren <tony@...mide.com>, linux-omap@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	freemangordon@....bg, aaro.koskinen@....fi, pavel@....cz
Subject: Re: [PATCH 4/4] RX-51: Add platform function and data for bq24150a
 charger

On Mon, Sep 23, 2013 at 10:06:46PM +0200, Pali Rohár wrote:
> On Monday 23 September 2013 22:00:09 Sebastian Reichel wrote:
> > On Mon, Sep 23, 2013 at 09:16:18PM +0200, Pali Rohár wrote:
> > > It is not as simple as it looks. This is reason why I
> > > submited this patch long time after I submited bq2415x
> > > driver.
> > > 
> > > Problem is that for rx51 is needed specific function which
> > > connect to two drivers (bq2415x and isp1704) plus it call
> > > specific rx51 board functions.
> > > 
> > > Something which cannot be in DT (unless DT support C/ASM
> > > code).
> > 
> > mh could isp1704 driver expose the data via the regulator
> > framework?
> 
> No, isp1704 is power supply driver and export data via power 
> supply (sysfs) interface. It is not regulator but charger driver.

well it does not charge the battery directly, but just provides a
power line with 5 Volt and a specified amount of current to the
system, doesn't it?

From my POV this is a candiate for the regulator framework:

https://www.kernel.org/doc/Documentation/power/regulator/overview.txt

-- Sebastian

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