Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760489AbaGOXeH (ORCPT ); Tue, 15 Jul 2014 19:34:07 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:45562 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934034AbaGOXOQ (ORCPT ); Tue, 15 Jul 2014 19:14:16 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, James Duley , Michael Mullin , Scot Doyle , Jani Nikula , Daniel Vetter Subject: [PATCH 3.15 61/84] drm/i915: Acer C720 and C720P have controllable backlights Date: Tue, 15 Jul 2014 16:17:58 -0700 Message-Id: <20140715231715.024901438@linuxfoundation.org> X-Mailer: git-send-email 2.0.0.254.g50f84e3 In-Reply-To: <20140715231713.193785557@linuxfoundation.org> References: <20140715231713.193785557@linuxfoundation.org> User-Agent: quilt/0.63-1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Scot Doyle 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 Tested-by: Michael Mullin Signed-off-by: Scot Doyle CC: Jani Nikula Signed-off-by: Jani Nikula [danvet: Add cc: stable because the regressing commit is in 3.15.] Signed-off-by: Daniel Vetter Signed-off-by: Greg Kroah-Hartman --- 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) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/