linux-kernel - Re: [PATCH 2/3] mfd: tps65912: Rewrite driver adding DT support and using regmap

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Date:	Mon, 21 Sep 2015 11:42:13 -0500
From:	"Andrew F. Davis" <afd@...com>
To:	Mark Brown <broonie@...nel.org>
CC:	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>,
	Linus Walleij <linus.walleij@...aro.org>,
	Alexandre Courbot <gnurou@...il.com>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Lee Jones <lee.jones@...aro.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	<devicetree@...r.kernel.org>, <linux-gpio@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/3] mfd: tps65912: Rewrite driver adding DT support and
 using regmap

On 09/19/2015 01:40 PM, Mark Brown wrote:
> On Tue, Sep 15, 2015 at 12:57:40PM -0500, Andrew F. Davis wrote:
>> The old driver does not support DT. Rewrite the driver adding DT support
>> and use modern kernel features such as regmap and related helpers.
>>
>> Signed-off-by: Andrew F. Davis <afd@...com>
>> ---
>>   drivers/gpio/gpio-tps65912.c           | 291 ++++++------
>>   drivers/mfd/Kconfig                    |  20 +-
>>   drivers/mfd/Makefile                   |   3 +-
>>   drivers/mfd/tps65912-core.c            | 288 +++++-------
>>   drivers/mfd/tps65912-i2c.c             | 233 ++++------
>>   drivers/mfd/tps65912-irq.c             | 217 ---------
>>   drivers/mfd/tps65912-spi.c             | 236 ++++------
>>   drivers/regulator/tps65912-regulator.c | 783 ++++++++++-----------------------
>>   include/linux/mfd/tps65912.h           | 256 +++++++----
>>   9 files changed, 854 insertions(+), 1473 deletions(-)
>
> It's not OK to have a single commit that rewrites multiple drivers over
> many subsystems, that's really not something that can be sensibly
> reviewed.  You should split this into a patch series which makes one
> specific change at a time as covered in SubmittingPatches.  That will
> allow the changes to be reviewed much more sensibly.
>

I know this is hard to review, and so I would like to apologize in advance, but
the regulator and GPIO changes depend on the new driver core, as do the i2c/spi
components. I really don't know how to split this up without leaving some part
in a non-working state in-between patches (which I've heard is also not OK).
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