linux/drivers/gpu
Kamal Mostafa be1932db6f drm/i915: quirk no PCH_PWM_ENABLE for Dell XPS13 backlight
commit e85843bec6 upstream.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=47941
BugLink: https://bugs.launchpad.net/bugs/1163720
BugLink: https://bugs.launchpad.net/bugs/1162026

Some machines suffer from non-functional backlight controls if
BLM_PCH_PWM_ENABLE is set, so provide a quirk to avoid doing so.
Apply this quirk to Dell XPS 13 models.

[ kamal: backport to 3.4 ]

Tested-by: Eric Griffith <EGriffith92@gmail.com>
Tested-by: Kent Baxley <kent.baxley@canonical.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-11 15:38:43 -07:00
..
drm drm/i915: quirk no PCH_PWM_ENABLE for Dell XPS13 backlight 2013-08-11 15:38:43 -07:00
stub i915: select VIDEO_OUTPUT_CONTROL for ACPI_VIDEO 2011-04-13 09:10:25 +10:00
vga fbcon: fix locking harder 2013-04-25 21:19:56 -07:00
Makefile