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: 13970014 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 E40E5C0219D for ; Tue, 11 Feb 2025 08:44:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=4RFb9A4U5YyWgy4kzIOhyisia7n5ROq1RTJWpcRxL5s=; b=TFFTaKOuZ3G+fUTGJlNBELAWy4 tEdaGnDlspYr+zpb9Cbi59CDqwzfyZgSIoNu2I8KjunQoID3l7OUSamBXuSukUPkJHuZ29HusghIg sH4Af+kqTZ0gS0eanatsqkoait9XFMIg8zOTxpILXe2cs/7DXP+t1v/TSU+U3TOyXgw9Y6Ubz7uJg hlQRYwbIHdd3noBcI6VhuB5kaTTQFcUqm1vbhtd8UQplfQdGKeXbgCixH2javrulg2KywCUMvCRIU Vvc9oJSMTE4pXrl+uQ5L65WFNw4F8U1Dr+W4cU6qL9RbdAmra0FrR6H4ksYjShj/0x8YAGLLDW+BP ffMjTchQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1thlsd-000000032bM-3e52; Tue, 11 Feb 2025 08:44:31 +0000 Received: from mx1.tq-group.com ([93.104.207.81]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1thlpx-000000031tN-3553 for linux-arm-kernel@lists.infradead.org; Tue, 11 Feb 2025 08:41:47 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tq-group.com; i=@tq-group.com; q=dns/txt; s=key1; t=1739263305; x=1770799305; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=4RFb9A4U5YyWgy4kzIOhyisia7n5ROq1RTJWpcRxL5s=; b=ht7rhN1wGPmaSIziOsfJ92apUZPnQWhr0DndaHsbSyQt3pe+PAEnrMTl MsBGyaFDeZhoUv4Ud6shZ0NYvVRVMe0vIPqNM53Cfy93Tln6bn7DH2AfI 0VJ9n3u/f8zeQGiHPP048y6n8bt65WdYFak+32PvpVzsMFBKvhYMX+iTD BtPGBVBc6DaIoc4ZYLLPcsaok8mJwhJUsj7Zwb/0Wqe9bPDxceNGoivDK bycpLgJYLzMA5pzdO9Xu6X+Od1uPbefcs3VzxEp60lCtaKmNfsFefFGZI gKGhTnKJOlBCgDd1TC7wE7+Izai8OX7Qw/XwyMINwFrnFFfdZqJiqPrZE 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 MIME-Version: 1.0 X-Last-TLS-Session-Version: TLSv1.3 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250211_004146_269779_83E816BB X-CRM114-Status: GOOD ( 11.33 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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