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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E8292C47DAF for ; Mon, 22 Jan 2024 15:13:26 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 72E6C10F3A4; Mon, 22 Jan 2024 15:13:26 +0000 (UTC) Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by gabe.freedesktop.org (Postfix) with ESMTPS id 22C6610F37D; Mon, 22 Jan 2024 15:13:25 +0000 (UTC) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by ams.source.kernel.org (Postfix) with ESMTP id 95658B80E86; Mon, 22 Jan 2024 15:13:23 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 67224C43601; Mon, 22 Jan 2024 15:13:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1705936402; bh=/VKhsWulm0iDGOxBxlboOPAiE34LfqITMZRgXC+HFaM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=moUXfeY5pnusRyjhDZstBr00iq+1pxV0StIE54rW+qXT7iDd9HK8celw63JfhD94u ICIXBg05lGSRIMTC0i3J2H2ENNnh2z9nMx16MPckMsRrG9wr58BYMTsE+aLa39AP1M jQqqWMRMozQZOUlN6fqBgXErvITZH7vm0U78GO0rgfbP3KhVeo7UHqH9/iEGGHongW cSaaWN7JBJooDVqicUjYIAaum2Tdg3Bz6iqZdTIJ2eIVoYc1VSb3ncAmcIyEfZ9irM vAH5egPaKvhZ0d4g1EaSKM3juuHtrRVJspnZwkUSGuMQQQJjBwAwdwu1Ys9gu6kRG8 LtLx9FJAM9eLg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH AUTOSEL 5.15 07/35] drm/amd/display: Fix tiled display misalignment Date: Mon, 22 Jan 2024 10:12:04 -0500 Message-ID: <20240122151302.995456-7-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240122151302.995456-1-sashal@kernel.org> References: <20240122151302.995456-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 5.15.147 Content-Transfer-Encoding: 8bit X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sasha Levin , aric.cyr@amd.com, dillon.varone@amd.com, dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, sunpeng.li@amd.com, airlied@gmail.com, Qingqing.Zhuo@amd.com, Xinhui.Pan@amd.com, Rodrigo.Siqueira@amd.com, samson.tam@amd.com, christian.koenig@amd.com, Meenakshikumar Somasundaram , wenjing.liu@amd.com, Hamza Mahfooz , daniel@ffwll.ch, Alex Deucher , jun.lei@amd.com, harry.wentland@amd.com, Nicholas Kazlauskas , alvin.lee2@amd.com Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" From: Meenakshikumar Somasundaram [ Upstream commit c4b8394e76adba4f50a3c2696c75b214a291e24a ] [Why] When otg workaround is applied during clock update, otgs of tiled display went out of sync. [How] To call dc_trigger_sync() after clock update to sync otgs again. Reviewed-by: Nicholas Kazlauskas Acked-by: Hamza Mahfooz Signed-off-by: Meenakshikumar Somasundaram Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/dc/core/dc.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 3919e75fec16..ef151a1bc31c 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -1680,6 +1680,10 @@ static enum dc_status dc_commit_state_no_check(struct dc *dc, struct dc_state *c wait_for_no_pipes_pending(dc, context); /* pplib is notified if disp_num changed */ dc->hwss.optimize_bandwidth(dc, context); + /* Need to do otg sync again as otg could be out of sync due to otg + * workaround applied during clock update + */ + dc_trigger_sync(dc, context); } if (dc->ctx->dce_version >= DCE_VERSION_MAX) -- 2.43.0