commit d64c81c4cea0a14e88fc76e2c845e4885e491754
author Henrique de Moraes Holschuh <hmh@hmh.eng.br> Sat Oct 18 14:23:55 2008 -0300
committer Len Brown <len.brown@intel.com> Wed Oct 22 18:14:39 2008 -0400
tree 027ce730772db3a6f7f0004397be408b9a64c3d9
parent 396293237cbc964fcedd4208cbc0d0f4880a98bb

ACPI: thinkpad-acpi: Remove firmware backlight delays for Intel ACPI IGD OpRegion

Based on analysis and a patch from Matthew Garrett <mjg59@srcf.ucam.org>.

Instruct the ThinkPad ACPI firmware to remove delays on the processing of
backlight brightness changes.  This method is present on ThinkPad
Vista-compatible BIOSes with standard ACPI backlight level control.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Yves-Alexis Perez <corsac@debian.org>
Signed-off-by: Len Brown <len.brown@intel.com>