From patchwork Tue Feb 11 08:41:17 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Stein X-Patchwork-Id: 13970001 Received: from mx1.tq-group.com (mx1.tq-group.com [93.104.207.81]) (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 DCFF11F03D1 for ; Tue, 11 Feb 2025 08:41:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=93.104.207.81 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739263308; cv=none; b=GDFjFu12A4Pf4XgMfWoa6EnyttHCEIDSCco8/Pp3f70wMZm/g2zzAsLalV7vCV0RuMc6SNCDwEpe58pdEcXyMWuvRH35ryBlOIMjRhbHIcRB8/U9FqAJFKtqJolkek7qO9iKths9dk9fJuZdAr0DGIJkra5nmo9wZbfmvfUYi9Q= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739263308; c=relaxed/simple; bh=6gPS1YPsWcIMNduBKi+ViZQ5KfZ9CPDoSfRGzV5cUhc=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=OITiTbeZHPC+OCUjq3v9LYVcatIwsGUL5X+/0WBjNK7F7KsbgczcIDNxW1qKWZyhfVMCPvuIRqm49mtcacffmScEoFcF01NZSO9lalik39I2cJOJ1ClAPuUPrPPRiOElfexRJsRnm7l6G4vEKMMsZdo25UglRFkeqGgt/x+6vzg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ew.tq-group.com; spf=pass smtp.mailfrom=ew.tq-group.com; dkim=pass (2048-bit key) header.d=tq-group.com header.i=@tq-group.com header.b=ppjjdNdP; dkim=fail (0-bit key) header.d=ew.tq-group.com header.i=@ew.tq-group.com header.b=ot8Ty0pa reason="key not found in DNS"; arc=none smtp.client-ip=93.104.207.81 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none 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=tq-group.com header.i=@tq-group.com header.b="ppjjdNdP"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=ew.tq-group.com header.i=@ew.tq-group.com header.b="ot8Ty0pa" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tq-group.com; i=@tq-group.com; q=dns/txt; s=key1; t=1739263306; x=1770799306; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=4RFb9A4U5YyWgy4kzIOhyisia7n5ROq1RTJWpcRxL5s=; b=ppjjdNdP3TX3KgdVQ6MKG5JBgMF7cQOuKN7B+QeKAlJmkH+InPp0+ZEv mZz+eny1WPLbHQ4psKRje13a1eJ+4yaPMP14Y5hNYjerdrWfU8iuXzmQu yfIlOU8btMZ5jXwf0mxhrWwfb93mSolSBV794oUxzX5jdaLN0J7jlfqfx IuwGzrAcf/kAkUWvvjl0e3x7Woo7AAcRhTGi5LoZAGlVPadwfTvBB5Iif AttGGvQrRUeCCVrf02GbeV0feKulIadPo5nshGIFmfL9O+UJs+Zw/GbHK vuvK1shFia08iZ7k/fhMSlSlS2yM2EdtLJ6AjOFOY7lWLdif5sz6E9x9U A==; X-CSE-ConnectionGUID: j0tyI7jSQeGshznAOusVTA== X-CSE-MsgGUID: emYshl8GQ1aoyScGBzvbtQ== X-IronPort-AV: E=Sophos;i="6.13,277,1732575600"; d="scan'208";a="41744827" Received: from vmailcow01.tq-net.de ([10.150.86.48]) by mx1.tq-group.com with ESMTP; 11 Feb 2025 09:41:43 +0100 X-CheckPoint: {67AB0D46-30-28232521-C0C2250B} X-MAIL-CPID: 63B22B090640647039E5A23306925933_4 X-Control-Analysis: str=0001.0A006378.67AB0D47.008B,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0 Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id B7738169B35; Tue, 11 Feb 2025 09:41:34 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ew.tq-group.com; s=dkim; t=1739263298; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=4RFb9A4U5YyWgy4kzIOhyisia7n5ROq1RTJWpcRxL5s=; b=ot8Ty0paEoLYoZcqnTi134PC18byiWn8/CX977l0j/Ul36QedKf2kiEDwDMSjk1wi6eHek zWicf2skVWKrnZ2mH6Ebt/oF9XK/W/lyJ88XQ1x45QDUFGSu1AuyMYnAeFygYGjpm83v6g X/KZcf280IJajG7t77cPMiSTKUHWKjvc5DeHNo2TW+iHJ1lzOIu1jfuaUcZEgtfhGZZf+x BGJJLdR52obnjKWl6Ee2RUiMjaj55EQ5VpKsYwU044Zbu6Sa0A3g1V7Dn8Qu0m4Ys6Xlvx Vi+F5JKWtaJFnXJ+IsL63iR2gC6NZcZtgkhhg0fMfcPYYGOWTcM6m5xci9rtJg== From: Alexander Stein To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Alexander Stein Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/2] i.MX91/93 parallel display bridge Date: Tue, 11 Feb 2025 09:41:17 +0100 Message-Id: <20250211084119.849324-1-alexander.stein@ew.tq-group.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: imx@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Last-TLS-Session-Version: TLSv1.3 Hi, i.MX91/93 support a parallel display interface. There is a single register for configuring the output format. There is not much documentation, but apparently this does some internal conversion. Add a bridge driver (similar to fsl-ldb.c) for connecting a bridge/panel to lcdif. I'm a bit unsure about the name. There is no dedicated IP, according to reference manual, just that single register. I would also agree to imx9-dpi or imx93-dpi. Note: It's only applicable to i.MX91/93, but not i.MX95! Tested on TQMa9352 on MBa91xxCA Best regards, Alexander Alexander Stein (2): dt-bindings: display: bridge: ldb: Implement simple Freescale i.MX91/93 DPI bridge drm: bridge: imx9-parallel-disp-fmt: add i.MX91/93 parallel display bridge .../bridge/fsl,imx9-parallel-disp-fmt.yaml | 78 +++++++ drivers/gpu/drm/bridge/Kconfig | 10 + drivers/gpu/drm/bridge/Makefile | 1 + .../gpu/drm/bridge/imx9-parallel-disp-fmt.c | 213 ++++++++++++++++++ 4 files changed, 302 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/fsl,imx9-parallel-disp-fmt.yaml create mode 100644 drivers/gpu/drm/bridge/imx9-parallel-disp-fmt.c