Received: by 10.223.185.116 with SMTP id b49csp4201320wrg; Mon, 26 Feb 2018 13:04:51 -0800 (PST) X-Google-Smtp-Source: AH8x225fTjoCuOs6+C8OuUPn73vNMsgPlOP/qQDq9jD2QoEs9m7uJ8M1U58l+Tu18HNDHmfUK1Fi X-Received: by 2002:a17:902:6985:: with SMTP id l5-v6mr12250953plk.14.1519679091427; Mon, 26 Feb 2018 13:04:51 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1519679091; cv=none; d=google.com; s=arc-20160816; b=kN3y/WGFdXBi+QgmIMvfADdQch7cCP3gpmsw2dfEXI0AyDlWQ1LIvPceZlFR4W5sLO hFWJB64V/4v3m2hblNxRzoA9jHkccVkh8h22T6SBxlvYsrqMH8yMywJc8IulBqfBufdd RD5102wD6Sx3/jvy7KuAZ6enrl8mcTC0c8F3ZVMkEDU7JuLtyybfkU8QOV8JfLEsaVbx arhwMxVXKBdbowU5sGBjpbOyosSSMQfJE8eE+f49sIq4S4L2TCEq6suN6lc+mglE9x1u wMQLe73jq+aJ8BhCH9azW852El6yqaBf4Fzd2G7mzNP25rw03FyObd6LNvJyWeDNcFlA JQhw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:user-agent:references :in-reply-to:message-id:date:subject:cc:to:from :arc-authentication-results; bh=aalfLn3YzfLAZN3gX8Dgk1D9ooRSHQXhv2eCzLqi02Q=; b=0aUHDli/l4hmqy+drA/DrcpFl2KPRup6NzgvGVNYRGj25uZ+gON1S4UgSNfumbYaIv 8UrOgaWAObwfKKsA+OY50BXlz04MaeSzDD+nO1u7kncV4XsjEBJi3V0M457H54h+IjKl 8CcGC4ZLuq/5BkWBFbYe0Ve4MjWqhw1AQv84pwKLLj8db6x85uFX31JMvhZ8YcxadUrM 0eBzzfsdZMcb9Ueq5TjkJmZxlhEyUo40kJufgOWNZ1z2/09fUYOAUygkNPPOSyV3v1M5 ADj9d6wh7VGwk24AD0PObQP2mR4R45CPsGsdyY6zJB/HyRU3/3hyiTlT2O2/Xw6xA43s OT2Q== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id r22si5979612pgn.104.2018.02.26.13.04.34; Mon, 26 Feb 2018 13:04:51 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752542AbeBZVDD (ORCPT + 99 others); Mon, 26 Feb 2018 16:03:03 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:33250 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752216AbeBZUVd (ORCPT ); Mon, 26 Feb 2018 15:21:33 -0500 Received: from localhost (clnet-b04-243.ikbnet.co.at [83.175.124.243]) by mail.linuxfoundation.org (Postfix) with ESMTPSA id 17E74108B; Mon, 26 Feb 2018 20:21:32 +0000 (UTC) From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Kai-Heng Feng , Mario Kleiner , Daniel Vetter Subject: [PATCH 4.9 17/39] drm/edid: Add 6 bpc quirk for CPT panel in Asus UX303LA Date: Mon, 26 Feb 2018 21:20:38 +0100 Message-Id: <20180226201644.438807933@linuxfoundation.org> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180226201643.660109883@linuxfoundation.org> References: <20180226201643.660109883@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Kai-Heng Feng commit 06998a756a3865817b87a129a7e5d5bb66dc1ec3 upstream. Similar to commit e10aec652f31 ("drm/edid: Add 6 bpc quirk for display AEO model 0."), the EDID reports "DFP 1.x compliant TMDS" but it support 6bpc instead of 8 bpc. Hence, use 6 bpc quirk for this panel. Fixes: 196f954e2509 ("drm/i915/dp: Revert "drm/i915/dp: fall back to 18 bpp when sink capability is unknown"") BugLink: https://bugs.launchpad.net/bugs/1749420 Signed-off-by: Kai-Heng Feng Reviewed-by: Mario Kleiner Cc: # v4.8+ Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20180218085359.7817-1-kai.heng.feng@canonical.com Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/drm_edid.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -107,6 +107,9 @@ static const struct edid_quirk { /* AEO model 0 reports 8 bpc, but is a 6 bpc panel */ { "AEO", 0, EDID_QUIRK_FORCE_6BPC }, + /* CPT panel of Asus UX303LA reports 8 bpc, but is a 6 bpc panel */ + { "CPT", 0x17df, EDID_QUIRK_FORCE_6BPC }, + /* Belinea 10 15 55 */ { "MAX", 1516, EDID_QUIRK_PREFER_LARGE_60 }, { "MAX", 0x77e, EDID_QUIRK_PREFER_LARGE_60 },