drm/i915: Ignore VBT backlight presence check on HP Chromebook 14
authorScot Doyle <lkml14@scotdoyle.com>
Fri, 11 Jul 2014 22:16:30 +0000 (22:16 +0000)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Mon, 14 Jul 2014 06:12:38 +0000 (08:12 +0200)
commit c675949ec58ca50d5a3ae3c757892f1560f6e896
    drm/i915: do not setup backlight if not available according to VBT

caused a regression on the HP Chromebook 14 (with Celeron 2955U CPU),
which has a misconfigured VBT. Apply quirk to ignore the VBT backlight
presence check during backlight setup.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=79813
Signed-off-by: Scot Doyle <lkml14@scotdoyle.com>
Tested-by: Stefan Nagy <public@stefan-nagy.at>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/intel_display.c

index e27e7804c0b974d85dd1d87cb2a57f7bebae78ca..82e7d57f0a8ab23d01c5f80374653e6bce5b5ca0 100644 (file)
@@ -11673,6 +11673,9 @@ static struct intel_quirk intel_quirks[] = {
 
        /* Toshiba CB35 Chromebook (Celeron 2955U) */
        { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present },
+
+       /* HP Chromebook 14 (Celeron 2955U) */
+       { 0x0a06, 0x103c, 0x21ed, quirk_backlight_present },
 };
 
 static void intel_init_quirks(struct drm_device *dev)