tree 55e255e741333b52ec8decfd6d5b4eb18ce39a9a
parent 41603e9783a24c8c7cce548c0819bdc9e46a585b
author Lee, Chun-Yi <jlee@suse.com> 1332791278 -0400
committer Matthew Garrett <mjg@redhat.com> 1332791278 -0400

acer-wmi: add quirk table for video backlight vendor mode

There have some acer laptop have broken _BCM implemenation, the AML
code wrote value to EC register but firmware didn't change brighenss.

Fortunately, the brightness control works on those machines with
vendor mode. So, add quirk table for video backlight vendor mode
and unregister acpi video interface on those machines.

Tested on Acer TravelMate 4750

Cc: Carlos Corbacho <carlos@strangeworlds.co.uk>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Thomas Renninger <trenn@suse.de>
Signed-off-by: Lee, Chun-Yi <jlee@suse.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>