From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 443F6763F6; Wed, 21 Feb 2024 13:38:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708522730; cv=none; b=Rqmgm7rNd0FqJwFlU5bA5xa6gznNOsbVR+3zCHUYCAkzZvNn4m7yPbvb0Y82784Dpa8HNZq5jqqM1I3JU7AJL4vyeuwBcEEY0pkWbEkzzzc5vhLjvTBGssdAYS+2go74g/hA8ZHBvB7XzUKId7CyRZUFMxtJch45xbg6dpZ4SHY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708522730; c=relaxed/simple; bh=cO6ejIwLajDoipaqFll6Ex03AxhgVvIqYUvY1Q3b8NU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=sMCMPGw0t3wdPnwoo5ynBa9ETboC3K2/6wQqIK0YKGQ0vLNtU259uJ9zsDNBxUIngc4cuq2n+v/yTRyiXldok0oOdcR9wr9Ucl+zrH/rNFx/BCIw4H9GRDakiVlscOdaoDMaAzWGSLSMZ5j8cimZhczgjavj4H3jE2OhBk2ogkQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ACsrtfrP; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="ACsrtfrP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AC81DC433F1; Wed, 21 Feb 2024 13:38:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1708522730; bh=cO6ejIwLajDoipaqFll6Ex03AxhgVvIqYUvY1Q3b8NU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ACsrtfrPpAPIJFz+kclzY6MztHKn+WiL9v/Q4+W8wmJ201J4CNQpnjXHEsDeNSWB0 m1T3S8likvVI6ajdmpPP9PScs5YaYaMgbJGEZ6Lli3MvidXBHN9itArvlbqH3FbDIL WYF1XmAsyA/V7JmVuJEFmOxdoSvv587FgsRFtNZw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Nicholas Kazlauskas , Hamza Mahfooz , Meenakshikumar Somasundaram , Alex Deucher , Sasha Levin Subject: [PATCH 5.15 213/476] drm/amd/display: Fix tiled display misalignment Date: Wed, 21 Feb 2024 14:04:24 +0100 Message-ID: <20240221130015.775217130@linuxfoundation.org> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240221130007.738356493@linuxfoundation.org> References: <20240221130007.738356493@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ 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