ACPI video: support _BQC/_BCL/_BCM methods that use index values

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The input/output of _BQC/_BCL/_BCM control methods should be represented
by a number between 0 and 100, and can be thought of as a percentage.
But some buggy _BQC/_BCL/_BCM methods use the index values instead.
http://bugzilla.kernel.org/show_bug.cgi?id=12302
http://bugzilla.kernel.org/show_bug.cgi?id=12249
http://bugzilla.kernel.org/show_bug.cgi?id=12037

Add the functionality to support such kind of BIOSes in ACPI video driver.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Matthew Garrett <mjg59@srcf.ucam.org>
Acked-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>

...

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Zhang Rui 2009-03-18 16:27:16 +08:00 • committed by Len Brown

parent d80fb99fdc

commit 1a7c618a3f

1 changed files with 70 additions and 21 deletions

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drivers/acpi/video.c

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