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=-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=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 39A44C433E1 for ; Mon, 24 Aug 2020 09:40:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0BB9320738 for ; Mon, 24 Aug 2020 09:40:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598262017; bh=PytyJQyEU46vyyqpShlG43bv0cszxenOGURoWaVe4Oc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=yyjnYOrQ6YEBI8k9WlhwJ8YKGqZ3EHRp6h9qiu3XmfWNZ0aEUSS/0AGiX4YUzQlEK YdJ9075+xU0oJ8Xjp4UOPCXuATczGjgu+L6sDMYjx+fhlB3elgdoIshREKlLu9GtAD gZf3I1dAgSVdPaU9nbQVn3g3GLFtFJS4WhWxiyLo= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729327AbgHXIqO (ORCPT ); Mon, 24 Aug 2020 04:46:14 -0400 Received: from mail.kernel.org ([198.145.29.99]:44146 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729104AbgHXIqL (ORCPT ); Mon, 24 Aug 2020 04:46:11 -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 3F0B3204FD; Mon, 24 Aug 2020 08:46:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598258770; bh=PytyJQyEU46vyyqpShlG43bv0cszxenOGURoWaVe4Oc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=t6I5P1Py7ZU3CgvrnzQ14lxyaMZzpsMdX4dcGdBGZl4e7Kig5Yj/shfXgG3dA3HLM 3xSnhXjiMUdaGzVbXHIGmdT5VC4spJEnyqpCdhyOCT03Wy7LAfYL7+u7ULPqNOBikv XUQrdXuCXgQLIcG4+ltwVtHTueqDzGUgKqvg5vHw= 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 5.4 037/107] drm/amd/display: Fix EDID parsing after resume from suspend Date: Mon, 24 Aug 2020 10:30:03 +0200 Message-Id: <20200824082406.960304366@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200824082405.020301642@linuxfoundation.org> References: <20200824082405.020301642@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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 @@ -1434,6 +1434,7 @@ amdgpu_dm_update_connector_after_detect( 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,