From: Alex Hung <alex.hung@canonical.com>
Date: Tue, 24 Apr 2012 08:40:52 +0000 (+0800)
Subject: thinkpad-acpi: fix issuing duplicated key events for brightness up/down
X-Git-Tag: v3.2.60~66
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=db1b95998148724046213339cb51c647e0e0825a;p=pandora-kernel.git

thinkpad-acpi: fix issuing duplicated key events for brightness up/down

commit ff413195e830541afeae469fc866ecd0319abd7e upstream.

The tp_features.bright_acpimode will not be set correctly for brightness
control because ACPI_VIDEO_HID will not be located in ACPI. As a result,
a duplicated key event will always be sent. acpi_video_backlight_support()
is sufficient to detect standard ACPI brightness control.

Signed-off-by: Alex Hung <alex.hung@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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