From: Jani Nikula <jani.nikula@intel.com>
Date: Tue, 22 Jan 2013 10:50:36 +0000
Subject: drm/i915: add quirk to invert brightness on Packard Bell NCL20

commit 5559ecadad5a73b27f863e92f4b4f369501dce6f upstream.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=44156
Reported-by: Alan Zimmerman <alan.zimm@gmail.com>
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 8575a62..7262786 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -8605,6 +8605,9 @@ static struct intel_quirk intel_quirks[] = {
 
 	/* Acer/eMachines e725 */
 	{ 0x2a42, 0x1025, 0x0212, quirk_invert_brightness },
+
+	/* Acer/Packard Bell NCL20 */
+	{ 0x2a42, 0x1025, 0x034b, quirk_invert_brightness },
 };
 
 static void intel_init_quirks(struct drm_device *dev)