From patchwork Tue Oct 21 11:01:09 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dheeraj Jamwal X-Patchwork-Id: 5124291 Return-Path: X-Original-To: patchwork-ltsi-dev@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id C49CB9F349 for ; Tue, 21 Oct 2014 12:19:36 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id E7A3320145 for ; Tue, 21 Oct 2014 12:19:35 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 07E9E200E3 for ; Tue, 21 Oct 2014 12:19:35 +0000 (UTC) Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id BD02E16B3; Tue, 21 Oct 2014 11:17:36 +0000 (UTC) X-Original-To: ltsi-dev@lists.linuxfoundation.org Delivered-To: ltsi-dev@mail.linuxfoundation.org Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 1321BD48 for ; Tue, 21 Oct 2014 11:17:27 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by smtp1.linuxfoundation.org (Postfix) with ESMTP id B9ED61F8A8 for ; Tue, 21 Oct 2014 11:17:26 +0000 (UTC) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga102.fm.intel.com with ESMTP; 21 Oct 2014 04:17:26 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.04,761,1406617200"; d="scan'208";a="617802845" Received: from ubuntu-desktop.png.intel.com ([10.221.122.25]) by fmsmga002.fm.intel.com with ESMTP; 21 Oct 2014 04:17:25 -0700 From: Dheeraj Jamwal To: ltsi-dev@lists.linuxfoundation.org Date: Tue, 21 Oct 2014 19:01:09 +0800 Message-Id: <1413889294-31328-1070-git-send-email-dheerajx.s.jamwal@intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1413889294-31328-1-git-send-email-dheerajx.s.jamwal@intel.com> References: <1413889294-31328-1-git-send-email-dheerajx.s.jamwal@intel.com> X-Spam-Status: No, score=-5.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org Subject: [LTSI-dev] [PATCH 1069/1094] drm/i915: Toshiba CB35 has a controllable backlight X-BeenThere: ltsi-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: "A list to discuss patches, development, and other things related to the LTSI project" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: ltsi-dev-bounces@lists.linuxfoundation.org Errors-To: ltsi-dev-bounces@lists.linuxfoundation.org X-Virus-Scanned: ClamAV using ClamSMTP From: Scot Doyle The Toshiba CB35 Chromebook (with Celeron 2955U CPU) has a controllable backlight although its VBT reports otherwise. Apply quirk to ignore the backlight presence check during backlight setup. Patch tested by author on Toshiba CB35. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=79813 Signed-off-by: Scot Doyle CC: Jani Nikula Signed-off-by: Jani Nikula Cc: stable@vger.kernel.org # 3.15 only [danvet: Add cc: stable because the regressing commit is in 3.15.] Signed-off-by: Daniel Vetter (cherry picked from commit d4967d8c6d4f52623f2be8eaff0b445dc5863c92) Signed-off-by: Dheeraj Jamwal --- drivers/gpu/drm/i915/intel_display.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 35081f2..82b1997 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -11671,6 +11671,9 @@ static struct intel_quirk intel_quirks[] = { /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */ { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present }, + + /* Toshiba CB35 Chromebook (Celeron 2955U) */ + { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present }, }; static void intel_init_quirks(struct drm_device *dev)