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>

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 1dd474e..2334e97 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -10188,20 +10188,11 @@ 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 },