From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Tue, 5 Aug 2014 17:56:08 +0000 (-0700)
Subject: 3.15-stable patches
X-Git-Tag: v3.4.102~12
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=3771f6bd960c3b9133f63429f73d8b4969fd3466;p=thirdparty%2Fkernel%2Fstable-queue.git

3.15-stable patches

added patches:
	drm-i915-ignore-vbt-backlight-presence-check-on-hp-chromebook-14.patch
---

diff --git a/queue-3.15/drm-i915-ignore-vbt-backlight-presence-check-on-hp-chromebook-14.patch b/queue-3.15/drm-i915-ignore-vbt-backlight-presence-check-on-hp-chromebook-14.patch
new file mode 100644
index 00000000000..f7d7ad397fd
--- /dev/null
+++ b/queue-3.15/drm-i915-ignore-vbt-backlight-presence-check-on-hp-chromebook-14.patch
@@ -0,0 +1,40 @@
+From 724cb06fa9b1e1ffd98188275543fdb3b8eaca4f Mon Sep 17 00:00:00 2001
+From: Scot Doyle <lkml14@scotdoyle.com>
+Date: Fri, 11 Jul 2014 22:16:30 +0000
+Subject: drm/i915: Ignore VBT backlight presence check on HP Chromebook 14
+
+From: Scot Doyle <lkml14@scotdoyle.com>
+
+commit 724cb06fa9b1e1ffd98188275543fdb3b8eaca4f upstream.
+
+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>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/gpu/drm/i915/intel_display.c |    3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/drivers/gpu/drm/i915/intel_display.c
++++ b/drivers/gpu/drm/i915/intel_display.c
+@@ -11251,6 +11251,9 @@ 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)
diff --git a/queue-3.15/series b/queue-3.15/series
index c073207234c..c03c7d52627 100644
--- a/queue-3.15/series
+++ b/queue-3.15/series
@@ -34,3 +34,4 @@ pinctrl-dra-dt-bindings-fix-pull-enable-disable.patch
 vfs-fix-check-for-fallocate-on-active-swapfile.patch
 arm-dts-dra7-evm-make-vdda_1v8_phy-supply-always-on.patch
 staging-vt6655-fix-warning-on-boot-handle_irq_event_percpu.patch
+drm-i915-ignore-vbt-backlight-presence-check-on-hp-chromebook-14.patch