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=unavailable 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 AA907C282CD for ; Mon, 28 Jan 2019 15:55:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 71F082177E for ; Mon, 28 Jan 2019 15:55:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548690953; bh=7oaOCg9/4PXoDswpIKriba+PuT/7aD2jCg/jSz1NeYk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=acb4Ab2SY0MME/rOCrg1s/w1VSC2L3QA3Lre3SukoiuBBpwgA0cZQXeLS8rxT6r3T vUJNrWFVlAxfGzfDojdDHEdmUAG0+32yS0Zjnjl8JjbK6+RbApsFtBe+B9zHBlhz+1 vaHABzkwWIqraqMO95pDkZobZZbdWDTwP/3qkfek= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727992AbfA1Pzw (ORCPT ); Mon, 28 Jan 2019 10:55:52 -0500 Received: from mail.kernel.org ([198.145.29.99]:41624 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727635AbfA1Pzt (ORCPT ); Mon, 28 Jan 2019 10:55:49 -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 D18B121741; Mon, 28 Jan 2019 15:55:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548690948; bh=7oaOCg9/4PXoDswpIKriba+PuT/7aD2jCg/jSz1NeYk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=yASCcxZ7e59e0SYxpuhF6M5M9QvwOcBxfnk80fe6TBYR6E1chsmoKFTGikDhMdY2b +OBFiuYQJgFGNbz2bgM4ipdQjchRmCm92QSuX05CmrTfA7Sc558+qqkspNgb65lgP1 hNdV75c375wSG9i5c1kTH/hBthmz7h0cdOR7N6pg= 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 4.20 243/304] drm/amd/display: validate extended dongle caps Date: Mon, 28 Jan 2019 10:42:40 -0500 Message-Id: <20190128154341.47195-243-sashal@kernel.org> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190128154341.47195-1-sashal@kernel.org> References: <20190128154341.47195-1-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 d91df5ef0cb3..d33a5ebe990b 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