From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8E478C282C8 for ; Mon, 28 Jan 2019 16:09:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 602A82171F for ; Mon, 28 Jan 2019 16:09:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548691749; bh=s94euxNWC6HlDDQgcnJrIZwNuaOfdkLMdIHtf3K5oOY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=k6m0nPuEYr6XYv/FSCyXX+QljKSe88UsPdYNtBVn+7zGV2MZaN0gl0eooH367i7mj 6svMsRezRtSM5RkpK3P6YgGjkyDkf/Pbvw4jU9A40dymXqq5kacnn1w2kP797AkhmL P1L3dz4WY3E9IrSXdMRlcGvYw0EhrWMKB+wybd9E= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732543AbfA1QJH (ORCPT ); Mon, 28 Jan 2019 11:09:07 -0500 Received: from mail.kernel.org ([198.145.29.99]:33274 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732536AbfA1QJE (ORCPT ); Mon, 28 Jan 2019 11:09:04 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4F4F12084A; Mon, 28 Jan 2019 16:09:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548691743; bh=s94euxNWC6HlDDQgcnJrIZwNuaOfdkLMdIHtf3K5oOY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YeYBLqLm9TnIdCqJd+FE6SsVGwXO9MHiWTl2LrqYsWI1yKxkuLww66NPrSAjLL/SC KgkhQ0GB2ELR3UyDoIrEHwELe2/uHdggdHuU8F0JG1SHmGA7lAZTZD6Ezlys0QdL/Z 9bIEyDBCfIhbJTeepJ9lnEz8rXkTTP1BBostBQgc= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Wenjing Liu , Alex Deucher , Sasha Levin , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 4.19 203/258] drm/amd/display: validate extended dongle caps Date: Mon, 28 Jan 2019 10:58:29 -0500 Message-Id: <20190128155924.51521-203-sashal@kernel.org> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190128155924.51521-1-sashal@kernel.org> References: <20190128155924.51521-1-sashal@kernel.org> MIME-Version: 1.0 X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Wenjing Liu [ Upstream commit 99b922f9ed6a6313c0d2247cde8aa1e4a0bd67e4 ] [why] Some dongle doesn't have a valid extended dongle caps, but we still set the extended dongle caps to be valid. This causes validation fails for all timing. [how] If no dp_hdmi_max_pixel_clk is provided, don't use extended dongle caps. Signed-off-by: Wenjing Liu Reviewed-by: Aric Cyr Reviewed-by: Jun Lei Acked-by: Abdoulaye Berthe Acked-by: Leo Li Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c index a7553b6d59c2..05840f5bddd5 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c @@ -2240,7 +2240,8 @@ static void get_active_converter_info( translate_dpcd_max_bpc( hdmi_color_caps.bits.MAX_BITS_PER_COLOR_COMPONENT); - link->dpcd_caps.dongle_caps.extendedCapValid = true; + if (link->dpcd_caps.dongle_caps.dp_hdmi_max_pixel_clk != 0) + link->dpcd_caps.dongle_caps.extendedCapValid = true; } break; -- 2.19.1