From: Zhao Yakui <yakui.zhao@intel.com>
Date: Thu, 17 Jul 2008 02:46:05 +0000 (+0800)
Subject: ACPI: Ignore _BQC object when registering backlight device
X-Git-Tag: v2.6.27-rc1~510^2~3^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c2c789057f075022658b38b498755c29c1ba8055;p=pandora-kernel.git

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>
---

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