linux-kernel - Re: [PATCH v2 14/15] charger: max14577: Configure battery-dependent settings from DTS

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Message-id: <1392044761.24553.2.camel@AMDC1943>
Date:	Mon, 10 Feb 2014 16:06:01 +0100
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Lee Jones <lee.jones@...aro.org>
Cc:	MyungJoo Ham <myungjoo.ham@...sung.com>,
	Chanwoo Choi <cw00.choi@...sung.com>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Mark Brown <broonie@...nel.org>, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Jenny Tc <jenny.tc@...el.com>
Subject: Re: [PATCH v2 14/15] charger: max14577: Configure battery-dependent
 settings from DTS

On Mon, 2014-02-10 at 12:14 +0000, Lee Jones wrote:
> > Remove hard-coded values for:
> >  - Fast Charge current,
> >  - End Of Charge current,
> >  - Fast Charge timer,
> >  - Overvoltage Protection Threshold,
> >  - Battery Constant Voltage,
> > and use DTS to configure them. This allows using the max14577 charger
> > driver with different batteries.
> > 
> > Now the charger driver requires valid configuration data from DTS. In
> > case of wrong configuration data it fails during probe. Patch adds
> > of_compatible to the charger mfd cell in MFD driver core.
> > 
> > Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> > Cc: Kyungmin Park <kyungmin.park@...sung.com>
> > Cc: Marek Szyprowski <m.szyprowski@...sung.com>
> > Cc: Dmitry Eremin-Solenikov <dbaryshkov@...il.com>
> > Cc: David Woodhouse <dwmw2@...radead.org>
> > Cc: Jenny Tc <jenny.tc@...el.com>
> > ---
> >  drivers/mfd/max14577.c               |    5 +-
> >  drivers/power/max14577_charger.c     |  234 +++++++++++++++++++++++++++++-----
> >  include/linux/mfd/max14577-private.h |   10 ++
> >  include/linux/mfd/max14577.h         |    8 ++
> >  4 files changed, 227 insertions(+), 30 deletions(-)
> 
> <snip>
> 
> > diff --git a/include/linux/mfd/max14577-private.h b/include/linux/mfd/max14577-private.h
> > index a8cd7de3526a..50cf70bec4d4 100644
> > --- a/include/linux/mfd/max14577-private.h
> > +++ b/include/linux/mfd/max14577-private.h
> > @@ -269,6 +269,16 @@ enum maxim_muic_charger_type {
> >  #define MAX77836_CHARGER_CURRENT_LIMIT_HIGH_STEP	 25000U
> >  #define MAX77836_CHARGER_CURRENT_LIMIT_MAX		475000U
> >  
> > +/* MAX14577 charger End-Of-Charge current limits (as in MAXIM_CHGCTRL5 register), uA */
> 
> Too many chars. Didn't checkpatch.pl complain about this?

I'll fix this.
> 
> > +#define MAX14577_CHARGER_EOC_CURRENT_LIMIT_MIN		50000U
> > +#define MAX14577_CHARGER_EOC_CURRENT_LIMIT_STEP		10000U
> > +#define MAX14577_CHARGER_EOC_CURRENT_LIMIT_MAX		200000U
> > +
> > +/* MAX14577/MAX77836 Battery Constant Voltage (as in MAXIM_CHGCTRL3
> > register), uV */
> 
> Same here

OK


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