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

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Date:	Mon, 3 Sep 2012 13:51:58 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Thierry Reding <thierry.reding@...onic-design.de>,
	Arun MURTHY <arun.murthy@...ricsson.com>
Cc:	Srinidhi KASAGAR <srinidhi.kasagar@...ricsson.com>,
	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 Mon, Sep 3, 2012 at 1:28 PM, Arun MURTHY <arun.murthy@...ricsson.com> wrote:
>> 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).

OK sounds good to me,
Acked-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij
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