From: Aaron Lu Date: Mon, 15 Dec 2014 08:01:29 +0000 (+0800) Subject: ACPI / video: update the skip case for acpi_video_device_in_dod() X-Git-Tag: omap-for-v3.19/fixes-rc1~33^2~2^3 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b4df463678fb9c6dae9548dbb7545993779fd416;p=pandora-kernel.git ACPI / video: update the skip case for acpi_video_device_in_dod() If the firmware has declared more than 8 video output devices, and the one that control the internal panel's backlight is listed after the first 8 output devices, the _DOD will not include it due to the current i915 operation region implementation. As a result, we will not create a backlight device for it while we should. Solve this problem by special case the firmware that has 8+ output devices in that if we see such a firmware, we do not test if the device is in _DOD list. The creation of the backlight device will also enable the firmware to emit events on backlight hotkey press when the acpi_osi= cmdline option is specified on those affected ASUS laptops. Link: https://bugzilla.kernel.org/show_bug.cgi?id=70241 Reported-and-tested-by: Oleksij Rempel Reported-and-tested-by: Dmitry Tunin Reported-and-tested-by: Jimbo Cc: 3.18+ # 3.18+ Signed-off-by: Aaron Lu Acked-by: Jani Nikula Signed-off-by: Rafael J. Wysocki --- Reading git-diff-tree failed