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authorScot Doyle <lkml14@scotdoyle.com>2014-07-03 23:27:51 +0000
committerDaniel Vetter <daniel.vetter@ffwll.ch>2014-07-09 09:50:52 +0200
commit2e93a1aa9ca455aa3ad0294bcd6d66f38bf8b758 (patch)
tree9fd36eba420428e4e0ce611b6308b09565416098 /drivers/gpu
parent9c72cc6f00d24711ef585772396dd1ae180881a6 (diff)
drm/i915: Acer C720 and C720P have controllable backlights
The Acer C720 and C720P Chromebooks (with Celeron 2955U CPU) have a controllable backlight although their VBT reports otherwise. Apply quirk to ignore the backlight presence check during backlight setup. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=79813 Tested-by: James Duley <jagduley@gmail.com> Tested-by: Michael Mullin <masmullin@gmail.com> Signed-off-by: Scot Doyle <lkml14@scotdoyle.com> CC: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Cc: stable@vger.kernel.org # 3.15 only [danvet: Add cc: stable because the regressing commit is in 3.15.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/i915/intel_display.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 949c765037ed..2ee81656f80a 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -11667,6 +11667,9 @@ static struct intel_quirk intel_quirks[] = {
/* Acer Aspire 5336 */
{ 0x2a42, 0x1025, 0x048a, quirk_invert_brightness },
+
+ /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */
+ { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present },
};
static void intel_init_quirks(struct drm_device *dev)