tree 04108f7ebd123e826c490add44797c89260db927
parent 4a5e3638b11978262ab76bbb2062e57fefaaedba
author Zhao Yakui <yakui.zhao@intel.com> 1216262765 +0800
committer Andi Kleen <ak@linux.intel.com> 1216338109 +0200

ACPI: Ignore _BQC object when registering backlight device

According to acpi spec , the objectes of  _BCL and _BCM are required if
integrated LCD is present and supports brightness level and the _BQC is
the optional object. So the _BQC object will be ignored when the backlight
device is registered.
At the same time when there is no _BQC object, the current brightness will be
set to the maximum.

http://bugzilla.kernel.org/show_bug.cgi?id=10206

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Zhang Rui  <rui.zhang@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>