linux-kernel - Re: [PATCH v2 2/3] ACPI / video: seperate backlight control and event interface

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Message-ID: <1379423051.2218.1.camel@ThinkPad-X230.localdomain>
Date:	Tue, 17 Sep 2013 17:04:11 +0400
From:	Igor Gnatenko <i.gnatenko.brain@...il.com>
To:	Aaron Lu <aaron.lu@...el.com>
Cc:	linux-acpi@...r.kernel.org, intel-gfx@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	Daniel Vetter <daniel@...ll.ch>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Matthew Garrett <matthew.garrett@...ula.com>,
	Seth Forshee <seth.forshee@...onical.com>,
	Lee Chun-Yi <joeyli.kernel@...il.com>,
	Richard Purdie <rpurdie@...ys.net>,
	Yves-Alexis Perez <corsac@...ian.org>,
	Felipe Contreras <felipe.contreras@...il.com>,
	Henrique de Moraes Holschuh <ibm-acpi@....eng.br>,
	Jani Nikula <jani.nikula@...ux.intel.com>
Subject: Re: [PATCH v2 2/3] ACPI / video: seperate backlight control and
 event interface

On Tue, 2013-09-17 at 17:23 +0800, Aaron Lu wrote:
> The backlight control and event delivery functionality provided by ACPI
> video module is mixed together and registered all during video device
> enumeration time. As a result, the two functionality are also removed
> together on module unload time or by the acpi_video_unregister function.
> The two functionalities are actually independent and one may be useful
> while the other one may be broken, so it is desirable to seperate the
> two functionalities such that it is clear and easy to disable one
> functionality without affecting the other one.
> 
> APIs to selectively remove backlight control interface and/or event
> delivery functionality can be easily added once needed.
> 
> Signed-off-by: Aaron Lu <aaron.lu@...el.com>
Tested-by: Igor Gnatenko <i.gnatenko.brain@...il.com>
> ---
>  drivers/acpi/video.c | 451 ++++++++++++++++++++++++++++++---------------------
>  include/acpi/video.h |   2 +
>  2 files changed, 264 insertions(+), 189 deletions(-)

-- 
Igor Gnatenko
Fedora release 20 (Heisenbug)
Linux 3.12.0-0.rc1.git0.1.fc20.x86_64

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