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

[Igor Gnatenko]

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 at intel.com>
Tested-by: Igor Gnatenko <i.gnatenko.brain at gmail.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