From patchwork Mon Aug 24 08:28:57 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 264937 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=-10.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, 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 E8316C433E1 for ; Mon, 24 Aug 2020 09:59:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C987020639 for ; Mon, 24 Aug 2020 09:59:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598263161; bh=4CNSfVrCBAZQkhDGS1J1IlqaAAqRPrPo8zCzlL0vzx4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=S92HHWC6B91TgMnYySuRaQBzwWS2XjL0YS6NFHKF6esjij1SaMUU9PyY7jBXDy6fe R7Qc7yv2TVjB4djl7t+B2RWTnAmsmp/U9mZZ6pyMcG6JikaOm74k9HyhL1kz5ONcWG eRp+XO8MpBA241FrRwNe+fx2W5julolBhaMiabW4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727053AbgHXIdc (ORCPT ); Mon, 24 Aug 2020 04:33:32 -0400 Received: from mail.kernel.org ([198.145.29.99]:41068 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727040AbgHXId0 (ORCPT ); Mon, 24 Aug 2020 04:33:26 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 06913206F0; Mon, 24 Aug 2020 08:33:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598258006; bh=4CNSfVrCBAZQkhDGS1J1IlqaAAqRPrPo8zCzlL0vzx4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=btzR8/g2fMZy85OD4fnQAjSGjwrZoSWKFtQA/0c4yffhLXIs8NjcCW6iVlyY9HWvq 1cih+fWF1Uxj/Msixn8TMBgFdACXmCmn82TYh0X1WW1ekig1ye8uhCQHsvlzVqhw85 QE00NMODi8Ub81yr8YC1CWdaUmYA7ANLzC5uk5kk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Stylon Wang , Nicholas Kazlauskas , Qingqing Zhuo , Alex Deucher Subject: [PATCH 5.8 039/148] drm/amd/display: Fix EDID parsing after resume from suspend Date: Mon, 24 Aug 2020 10:28:57 +0200 Message-Id: <20200824082415.919874230@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200824082413.900489417@linuxfoundation.org> References: <20200824082413.900489417@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Stylon Wang commit b24bdc37d03a0478189e20a50286092840f414fa upstream. [Why] Resuming from suspend, CEA blocks from EDID are not parsed and no video modes can support YUV420. When this happens, output bpc cannot go over 8-bit with 4K modes on HDMI. [How] In amdgpu_dm_update_connector_after_detect(), drm_add_edid_modes() is called after drm_connector_update_edid_property() to fully parse EDID and update display info. Cc: stable@vger.kernel.org Signed-off-by: Stylon Wang Reviewed-by: Nicholas Kazlauskas Acked-by: Qingqing Zhuo Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -2184,6 +2184,7 @@ void amdgpu_dm_update_connector_after_de drm_connector_update_edid_property(connector, aconnector->edid); + drm_add_edid_modes(connector, aconnector->edid); if (aconnector->dc_link->aux_mode) drm_dp_cec_set_edid(&aconnector->dm_dp_aux.aux,