linux-kernel - Re: [RESEND PATCH v3 3/6] charger: max14577: Configure battery-dependent settings from DTS and sysfs

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Date:	Wed, 27 Aug 2014 15:55:25 +0200
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Lee Jones <lee.jones@...aro.org>
Cc:	Sebastian Reichel <sre@...nel.org>,
	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	David Woodhouse <dwmw2@...radead.org>,
	linux-kernel@...r.kernel.org, linux-api@...r.kernel.org,
	linux-pm@...r.kernel.org, Samuel Ortiz <sameo@...ux.intel.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Jenny Tc <jenny.tc@...el.com>
Subject: Re: [RESEND PATCH v3 3/6] charger: max14577: Configure
 battery-dependent settings from DTS and sysfs

On śro, 2014-08-27 at 14:50 +0100, Lee Jones wrote:
> On Wed, 27 Aug 2014, Krzysztof Kozlowski 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 or sysfs 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.
> > 
> > The fast charge timer is configured through sysfs entry.
> > 
> > Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> > Cc: Kyungmin Park <kyungmin.park@...sung.com>
> > Cc: Dmitry Eremin-Solenikov <dbaryshkov@...il.com>
> > Cc: David Woodhouse <dwmw2@...radead.org>
> > Cc: Jenny Tc <jenny.tc@...el.com>
> > Cc: Mark Rutland <mark.rutland@....com>
> > Acked-by: Lee Jones <lee.jones@...aro.org>
> > ---
> >  drivers/mfd/max14577.c               |   5 +-
> 
> Hmm... not sure why I Acked this.  The code looks okay, but can you
> break out the MFD changed into a separate patch please?  You can add
> my Ack to the broken out patch though.

Sure, I'll split it however the compatible here in mfd_cell makes sense
only with this patch.

Best regards,
Krzysztof


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