From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from www537.your-server.de (www537.your-server.de [188.40.3.216]) (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 2540C393DD1; Tue, 24 Mar 2026 11:11:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=188.40.3.216 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774350668; cv=none; b=mg/LTdaJA1ujQdp1EaWIpoL7fXScymLiPIjK/xjayiTif5TlFDzvIJOC43yMrwIC/RonKxdNyUwoTM6pzfRk72fyoPBgUyIJSdo7fm3/RzMY6gJb8Sd8PImlJmwy2W5Sivn/WVvegRCN+dz6qrxSlA7QAdnoWpfeM+hu7SJTxP8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774350668; c=relaxed/simple; bh=JPx1vrtX0C/tWMsdd1tQ7d3q/wTW+FZ0Zxpx2M3kcyY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=XEoti03Xg/zREaEH9676hgUcTxqlRW2j4/9XZ4KEMzMpiI/QU15PRJBXYDEJ8w2/WLlfHdO2MkTym7/3F1ZdS8aB1SXZMTtdTAjUNh+Ej8iJKfRaKluaAPVXGRMZytWcV2Tv+CXsJ9Tv51LurCmw0zdRlaWCZaFtwJNul9sDdpU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ew.tq-group.com; spf=pass smtp.mailfrom=ew.tq-group.com; dkim=pass (2048-bit key) header.d=ew.tq-group.com header.i=@ew.tq-group.com header.b=iWLf6HxE; arc=none smtp.client-ip=188.40.3.216 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ew.tq-group.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ew.tq-group.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ew.tq-group.com header.i=@ew.tq-group.com header.b="iWLf6HxE" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ew.tq-group.com; s=default2602; h=Content-Type:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID; bh=cGWiExyIr/Sacve//+lspGagmILT6Xi0U+hA1nbMGtU=; b=iWLf6HxEdXSXA/cNpmIJZ2QAtA DcXnPhmPAvgXXmYUQD3IAO6TLFsb9wz8egHj/H0MuxZZIu+XpYgNz33zNXDEMLPgKTJ/UJC8is0mq +xdOuV64RMqGoZ4Z2F1N9z8nsaZt8hEVroM1xghd314+VKC08R8W0KCvTvZzaREXbJscHid0JHeK1 xiMnUll0gXpQ+5fTTTDRwdycWRpEsGZSrYeV3412EwSWwgsMr6U/iRugI5DoaSY0vf8S7mOBlFOUk pSAhRbD1ZG1s7ea7cs5J5ZhbGAuuI6hZT4Q4CfvGlrhieO3uJ3w9SrfI1mDpOUlEBv3m0Nif216Ea TgxMHziQ==; Received: from sslproxy04.your-server.de ([78.46.152.42]) by www537.your-server.de with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.96.2) (envelope-from ) id 1w4zf3-000KC3-0M; Tue, 24 Mar 2026 12:11:01 +0100 Received: from localhost ([127.0.0.1]) by sslproxy04.your-server.de with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1w4zf2-0004CR-0E; Tue, 24 Mar 2026 12:11:00 +0100 From: Alexander Stein To: Luca Ceresoli , Marek Vasut , andrzej.hajda@intel.com, neil.armstrong@linaro.org, rfoss@kernel.org, dri-devel@lists.freedesktop.org Cc: Laurent.pinchart@ideasonboard.com, jonas@kwiboo.se, jernej.skrabec@gmail.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, valentin@compulab.co.il, philippe.schenker@toradex.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, tessolveupstream@gmail.com Subject: Re: [PATCH v2 0/2] drm: bridge: ti-sn65dsi83: Improve dual-link LVDS support Date: Tue, 24 Mar 2026 12:10:59 +0100 Message-ID: <3019871.ElGaqSPkdT@steina-w> Organization: TQ-Systems GmbH In-Reply-To: <1ecbcd57-83d9-410c-8e1a-d6a171321ccd@gmail.com> References: <20260312043743.261475-1-tessolveupstream@gmail.com> <1ecbcd57-83d9-410c-8e1a-d6a171321ccd@gmail.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="iso-8859-1" X-Virus-Scanned: Clear (ClamAV 1.4.3/27950/Tue Mar 24 07:24:19 2026) Am Dienstag, 24. M=E4rz 2026, 12:00:43 CET schrieb tessolveupstream@gmail.c= om: > [snip] > > Thanks for the detailed explanation. > Regarding the panel timings, they are not explicitly defined in the DTS.= =20 > The panel is currently using the timings provided by the panel driver=20 > (panel-simple.c), specifically: >=20 > static const struct display_timing auo_g133han01_timings =3D { > .pixelclock =3D { 134000000, 141200000, 149000000 }, > .hactive =3D { 1920, 1920, 1920 }, > .hfront_porch =3D { 39, 58, 77 }, > .hback_porch =3D { 59, 88, 117 }, > .hsync_len =3D { 28, 42, 56 }, > .vactive =3D { 1080, 1080, 1080 }, > .vfront_porch =3D { 3, 8, 11 }, > .vback_porch =3D { 5, 14, 19 }, > .vsync_len =3D { 4, 14, 19 }, > }; >=20 > The panel I am using is based on AUO G133HAN01, and the datasheet can=20 > be found here: > https://datasheet4u.com/pdf/1257948/G133HAN01.0.pdf > About CHA_DSI_CLK_R= ANGE: what is your DSI clock? > >=20 >=20 > In the current working configuration, the measured clock frequencies=20 > are: > DSI_CLK: ~422MHz > LVDS_CLK(both A & B Channels): ~70MHz > > Finally I don't think the swing values are problematic, so I'd leave th= em > > as the last thing to check. I managed to get this display running with this DSI->LVDS bridge on TQMa8MxML/TQMa8MxNL (imx8mm or imx8mn) platform. See [1] for the DT. What platform/ DSI host are you using? Best regards, Alexander [1] https://lore.kernel.org/all/20260316135820.760073-2-alexander.stein@ew.= tq-group.com/ =2D-=20 TQ-Systems GmbH | M=FChlstra=DFe 2, Gut Delling | 82229 Seefeld, Germany Amtsgericht M=FCnchen, HRB 105018 Gesch=E4ftsf=FChrer: Detlef Schneider, R=FCdiger Stahl, Stefan Schneider http://www.tq-group.com/