This is a note to let you know that I've just added the patch titled
drm/i915: Acer C720 and C720P have controllable backlights
to the 3.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-i915-acer-c720-and-c720p-have-controllable-backlights.patch
and it can be found in the queue-3.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 2e93a1aa9ca455aa3ad0294bcd6d66f38bf8b758 Mon Sep 17 00:00:00 2001
From: Scot Doyle <lkml14@xxxxxxxxxxxxx>
Date: Thu, 3 Jul 2014 23:27:51 +0000
Subject: drm/i915: Acer C720 and C720P have controllable backlights
From: Scot Doyle <lkml14@xxxxxxxxxxxxx>
commit 2e93a1aa9ca455aa3ad0294bcd6d66f38bf8b758 upstream.
The Acer C720 and C720P Chromebooks (with Celeron 2955U CPU) have a
controllable backlight although their VBT reports otherwise. Apply quirk
to ignore the backlight presence check during backlight setup.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=79813
Tested-by: James Duley <jagduley@xxxxxxxxx>
Tested-by: Michael Mullin <masmullin@xxxxxxxxx>
Signed-off-by: Scot Doyle <lkml14@xxxxxxxxxxxxx>
CC: Jani Nikula <jani.nikula@xxxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
[danvet: Add cc: stable because the regressing commit is in 3.15.]
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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
@@ -11245,6 +11245,9 @@ static struct intel_quirk intel_quirks[]
/* Acer Aspire 5336 */
{ 0x2a42, 0x1025, 0x048a, quirk_invert_brightness },
+
+ /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */
+ { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present },
};
static void intel_init_quirks(struct drm_device *dev)
Patches currently in stable-queue which might be from lkml14@xxxxxxxxxxxxx are
queue-3.15/drm-i915-toshiba-cb35-has-a-controllable-backlight.patch
queue-3.15/drm-i915-quirk-asserts-controllable-backlight-presence-overriding-vbt.patch
queue-3.15/drm-i915-acer-c720-and-c720p-have-controllable-backlights.patch
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html