linux-kernel - RE: [PATCH] pwm: Move AB8500 PWM driver to PWM framework

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Date:	Mon, 3 Sep 2012 13:28:44 +0200
From:	Arun MURTHY <arun.murthy@...ricsson.com>
To:	Linus Walleij <linus.walleij@...aro.org>,
	Thierry Reding <thierry.reding@...onic-design.de>,
	Srinidhi KASAGAR <srinidhi.kasagar@...ricsson.com>
Cc:	Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Lee Jones <lee.jones@...aro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] pwm: Move AB8500 PWM driver to PWM framework

> On Sun, Sep 2, 2012 at 12:30 PM, Thierry Reding <thierry.reding@...onic-
> design.de> wrote:
> 
> > This commit moves the driver to drivers/pwm and converts it to the new
> > PWM framework.
> >
> > Signed-off-by: Thierry Reding <thierry.reding@...onic-design.de>
> > ---
> > Note: I'll take this through the PWM tree, but I'd like to have it
> > acknowledged by a few people who know the hardware and can actually
> > test whether this still works.
> 
> Pls include Arun on these patches, he'll know best if it'll work or not.
> 
> I have one generic question: will this alter the layout of sysfs so we need to
> change userspace? I had such issues before when moving drivers to new
> busses...
> 

Since this pwm framework is still a set of exported functions in a header file,
the file architecture doesn't really matter. 
Using this driver, either leds-pwm and backlight-pwm is used to register and
this is where actual registration happens(sysfs entry is created).

Thanks and Regards,
Arun R Murthy
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