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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C06DDC433EF for ; Mon, 6 Dec 2021 21:17:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350824AbhLFVUp (ORCPT ); Mon, 6 Dec 2021 16:20:45 -0500 Received: from sin.source.kernel.org ([145.40.73.55]:48502 "EHLO sin.source.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1350483AbhLFVUk (ORCPT ); Mon, 6 Dec 2021 16:20:40 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id E5477CE1626; Mon, 6 Dec 2021 21:17:09 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A70BDC341C8; Mon, 6 Dec 2021 21:17:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1638825428; bh=fanTPIOiggeE08IYJBl2qo9gpsCFENd0t+vdv02drJM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=btfywATqm5Fby+DYDUk9zXaakCiRMJebhUsHZtvyAWBDG/EbTmUJoiP+VlUFDCrCy 9wxm8cTAGqwyy3kSkLfMdhBq399gdBASldBCDGH+azL+Q9/1m4pEdqmLLo5DOaozvD DgM8gKTmlwGQAJm9L+5orMvbeMAdGoGB7ILa8aPSjLpQNwOUW9t2mmmU/Zm6K44x66 9WduOLULAJVIeHcM82WHCwWllhfojx9HTJ+ksWU0ViI5uhjlUbqTFJ4RmkSp/PoB59 +ZcMnNniabohUSDqk9p0FD34ArxDtf8UWRz8V6pVNd3UnJfGCb13pub0P7Ou4SG/dF hoBPJ5rmMUKCg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Mustapha Ghaddar , Jun Lei , Bhawanpreet Lakha , Mustapha Ghaddar , Daniel Wheeler , Alex Deucher , Sasha Levin , harry.wentland@amd.com, sunpeng.li@amd.com, Rodrigo.Siqueira@amd.com, christian.koenig@amd.com, Xinhui.Pan@amd.com, airlied@linux.ie, daniel@ffwll.ch, aric.cyr@amd.com, nicholas.kazlauskas@amd.com, mario.kleiner.de@gmail.com, Jimmy.Kizito@amd.com, Dmytro.Laktyushkin@amd.com, Jerry.Zuo@amd.com, vladimir.stempen@amd.com, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 5.10 13/15] drm/amd/display: Fix for the no Audio bug with Tiled Displays Date: Mon, 6 Dec 2021 16:15:13 -0500 Message-Id: <20211206211520.1660478-13-sashal@kernel.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20211206211520.1660478-1-sashal@kernel.org> References: <20211206211520.1660478-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Mustapha Ghaddar [ Upstream commit 5ceaebcda9061c04f439c93961f0819878365c0f ] [WHY] It seems like after a series of plug/unplugs we end up in a situation where tiled display doesnt support Audio. [HOW] The issue seems to be related to when we check streams changed after an HPD, we should be checking the audio_struct as well to see if any of its values changed. Reviewed-by: Jun Lei Acked-by: Bhawanpreet Lakha Signed-off-by: Mustapha Ghaddar Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c index 59d48cf819ea8..5f4cdb05c4db9 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -1698,6 +1698,10 @@ bool dc_is_stream_unchanged( if (old_stream->ignore_msa_timing_param != stream->ignore_msa_timing_param) return false; + // Only Have Audio left to check whether it is same or not. This is a corner case for Tiled sinks + if (old_stream->audio_info.mode_count != stream->audio_info.mode_count) + return false; + return true; } -- 2.33.0