Revert "drm/i915: assume all GM45 Acer laptops use inverted backlight PWM"

My Acer 8510TZ stops displaying anything when X starts with Linus' current
tree. I bisected it down to commit ee1452d74584.

This patch reverts commit ee1452d74584.

After the revert, everything works as before.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Reported-by: Dylan Borg <borgdylan@hotmail.com> (for a Acer Extensa 5635Z)
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 54e82a8..769b864 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -10541,11 +10541,20 @@ static struct intel_quirk intel_quirks[] = {
        /* Sony Vaio Y cannot use SSC on LVDS */
        { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },
 
-       /*
-        * 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 },
+       /* 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 },
 
        /* Dell XPS13 HD Sandy Bridge */
        { 0x0116, 0x1028, 0x052e, quirk_no_pcm_pwm_enable },