blob: 3b3139ff307a8394f341a05f6bc12801ac592276 [file] [log] [blame]
From 8a82e83a2daa78f317b5b4f462cbf9884217fdd1 Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Fri, 20 Sep 2013 15:05:30 +0300
Subject: drm/i915: assume all GM45 Acer laptops use inverted backlight PWM
There is plenty of evidence suggesting all of the GM45 based Acer
laptops (including their eMachines and Packard Bell brands) use inverted
backlight PWM. Assume this is really the case, and quirk them all.
The old bugs that were fixed by subsystem device specific quirks:
* https://bugs.freedesktop.org/show_bug.cgi?id=59628
* https://bugzilla.kernel.org/show_bug.cgi?id=31522#c35
* https://bugs.freedesktop.org/show_bug.cgi?id=44156
* https://bugzilla.kernel.org/show_bug.cgi?id=53881
See also this bug and the plethora of duplicates:
* https://bugs.launchpad.net/ubuntu/+source/linux/+bug/765438
References: https://bugzilla.kernel.org/show_bug.cgi?id=54171
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
(cherry picked from commit ee1452d7458451a7508e0663553ce88d63958157)
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
---
drivers/gpu/drm/i915/intel_display.c | 19 +++++--------------
1 file changed, 5 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 951e4b5f7e77..12595a514074 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -10190,20 +10190,11 @@ static struct intel_quirk intel_quirks[] = {
/* Sony Vaio Y cannot use SSC on LVDS */
{ 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },
- /* Acer Aspire 5734Z must invert backlight brightness */
- { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness },
-
- /* Acer/eMachines G725 */
- { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness },
-
- /* Acer/eMachines e725 */
- { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness },
-
- /* Acer/Packard Bell NCL20 */
- { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness },
-
- /* Acer Aspire 4736Z */
- { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness },
+ /*
+ * All GM45 Acer (and its brands eMachines and Packard Bell) laptops
+ * seem to use inverted backlight PWM.
+ */
+ { 0x2a42, 0x1025, PCI_ANY_ID, quirk_invert_brightness },
/* Dell XPS13 HD Sandy Bridge */
{ 0x0116, 0x1028, 0x052e, quirk_no_pcm_pwm_enable },
--
1.8.5.rc3