From patchwork Sat Dec 7 12:22:42 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?UmFmYcWCIE1pxYJlY2tp?= X-Patchwork-Id: 3304951 Return-Path: X-Original-To: patchwork-dri-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id AB935C0D4A for ; Sat, 7 Dec 2013 12:23:04 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id B4B7D202D1 for ; Sat, 7 Dec 2013 12:23:03 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id AA034202B4 for ; Sat, 7 Dec 2013 12:23:02 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A0229FA802; Sat, 7 Dec 2013 04:22:59 -0800 (PST) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail-ea0-f177.google.com (mail-ea0-f177.google.com [209.85.215.177]) by gabe.freedesktop.org (Postfix) with ESMTP id 04245FA802 for ; Sat, 7 Dec 2013 04:22:57 -0800 (PST) Received: by mail-ea0-f177.google.com with SMTP id n15so741198ead.36 for ; Sat, 07 Dec 2013 04:22:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:mime-version:content-type :content-transfer-encoding; bh=gu12iXGWe98zOcce2W2EPMF0Ck2fX4RE3oSKeABM4G4=; b=kxoehgm3fXXXeLbIDefyXesRpdsLnFavcrUuYxAKfaQtQaW6Llx8kdJTDybx977giN q6YAkWIyMHdAhFlRc8Yttoi7vndFQiS+qtmPew6mmBCeGA1FRrBmedt2k8CkR8p9pki7 be7fZu8nOZCrdedIDReAH6CEh2us7YlsIIRvCMLj8jywmLego4ssZWsk2BcXFIlLcNXE utxUeSy2v5QQB/pwguO9pU3fUNxpwIr+XE0l4n1f+nO8pKQpDMoAE/U4Hu8cikpmgGTh YRw3GI/WGBJoEtJ65xBMjyxBZBhNY4YJ9uKJcyQnNSCmha7y2XGNTxhy6GCGERydsuRQ Tewg== X-Received: by 10.15.82.8 with SMTP id z8mr6176853eey.25.1386418977269; Sat, 07 Dec 2013 04:22:57 -0800 (PST) Received: from linux-samsung700g7a.lan (ip-194-187-74-233.konfederacka.maverick.com.pl. [194.187.74.233]) by mx.google.com with ESMTPSA id m1sm5995742eeg.0.2013.12.07.04.22.55 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 07 Dec 2013 04:22:56 -0800 (PST) From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= To: dri-devel@lists.freedesktop.org, Dave Airlie Subject: [PATCH] drm/edid: add quirk for BPC in Samsung NP700G7A-S01PL notebook Date: Sat, 7 Dec 2013 13:22:42 +0100 Message-Id: <1386418962-2492-1-git-send-email-zajec5@gmail.com> X-Mailer: git-send-email 1.7.10.4 MIME-Version: 1.0 Cc: stable@vger.kernel.org X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org X-Spam-Status: No, score=-4.3 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, T_DKIM_INVALID, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This bug in EDID was exposed by: commit eccea7920cfb009c2fa40e9ecdce8c36f61cab66 Author: Alex Deucher Date: Mon Mar 26 15:12:54 2012 -0400 drm/radeon/kms: improve bpc handling (v2) Which resulted in kind of regression in 3.5. This fixes https://bugs.freedesktop.org/show_bug.cgi?id=70934 Signed-off-by: Rafa? Mi?ecki Cc: stable@vger.kernel.org --- drivers/gpu/drm/drm_edid.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index f1764ec..a1b4f2b 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -68,6 +68,8 @@ #define EDID_QUIRK_DETAILED_SYNC_PP (1 << 6) /* Force reduced-blanking timings for detailed modes */ #define EDID_QUIRK_FORCE_REDUCED_BLANKING (1 << 7) +/* Force 8bpc */ +#define EDID_QUIRK_FORCE_8BPC (1 << 8) struct detailed_mode_closure { struct drm_connector *connector; @@ -128,6 +130,9 @@ static struct edid_quirk { /* Medion MD 30217 PG */ { "MED", 0x7b8, EDID_QUIRK_PREFER_LARGE_75 }, + + /* Panel in Samsung NP700G7A-S01PL notebook reports 6bpc */ + { "SEC", 0xd033, EDID_QUIRK_FORCE_8BPC }, }; /* @@ -3421,6 +3426,9 @@ int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid) drm_add_display_info(edid, &connector->display_info); + if (quirks & EDID_QUIRK_FORCE_8BPC) + connector->display_info.bpc = 8; + return num_modes; } EXPORT_SYMBOL(drm_add_edid_modes);