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authorMatthew Garrett <mjg59@srcf.ucam.org>2009-02-18 02:08:25 +0000
committerBen Skeggs <bskeggs@redhat.com>2009-02-18 13:48:33 +1000
commit96ce587e8b915afeac38e5f547ba95803c1780f2 (patch)
treeacd11f89b3ec7877a9c54a708a65ad2b56c9c334 /tests/ttmtest/reconf
parent0054e14793e585ec0d8e95e3d7b82cbf1a684af8 (diff)
nouveau: Add in-kernel backlight control support
Several nvidia-based systems don't support backlight control via the standard ACPI control mechanisms. Instead, it's necessary for the driver to modify the backlight control registers directly. This patch adds support for determining whether the registers appear to be in use, and if so registers a kernel backlight device to control them. The backlight can then be controlled via existing userspace tools. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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