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 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 535B5CD8C92 for ; Mon, 8 Jun 2026 07:47:08 +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:MIME-Version:In-Reply-To: Content-Type:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=RQ6mPfcbdWHiwGZuUcE7ajMn3ERZw0VSdcFVG5P3GN4=; b=sISoBijg4X/04jWSh2CiDRg2Np uXQSEmH5UC7lbVhSuA9t5Ne05huXw5+p5lUQjfLNcseWkzBbE4JYAb3Kj7hdiErAxHesze60gt9QK 8gGkkyrQT4DAeXvcfQH2cWmJ5MPMdiQsdOy0MIqlXKv7Byx83AxwPqLnIsZo7hfXQrzf5U4NJ2tcX dvAzpO5vvDDyvCTATzVmQUzGKbkozaJgee8olLBkXsJJ8vzFLIXQnn5AgZwKdwT1g6bzMFMMc+OTr z8UsxaoQFSZ9uuuhBijUczRRurIa2A97JkpF51MsYWb5mYfCuBaXjTJu/JgBjd+Djb7RPtrIjsv4u COaxElzg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wWUhJ-000000030r7-28UX; Mon, 08 Jun 2026 07:47:01 +0000 Received: from mail-westeuropeazlp170110003.outbound.protection.outlook.com ([2a01:111:f403:c201::3] helo=AS8PR04CU009.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wWUhH-000000030qZ-3E3f for linux-arm-kernel@lists.infradead.org; Mon, 08 Jun 2026 07:47:00 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=kTNyqqWkkM4Pi1iY9w+/PtxeR1E+arx2rkMCcJHeFybMiKs8GeWKmghmCVPCsmW+SsfItn9dgQ85w24TqixdPeLvy0ekomuKIe7Vu2lTeJRunptayJP0SaIQhnCViQOwSzTTYOiQ4ShHaX/WKVRv42jsjQBHnxsILEaJ4DPia61sSAkj0Uqq4O0SJXtGawv9Oo7y9UJ1NTs8GHpBliBshdusDfuF1vZ+DSRiQHUTHDYEjBPeiFzUBTJv5CQqY0t433GkY5Lsbt2+0w2iyhe1zZqBk6SmY9NFOsB5r4BWtILKlfnMH1v3M1h84qrqmvpn9TbgE7dzYpjF3EJkb5mycA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=RQ6mPfcbdWHiwGZuUcE7ajMn3ERZw0VSdcFVG5P3GN4=; b=ugCdvOp4A7cOU9bM90othCZw86Z3QTHhwwP7Z/fSDxKMtuoEArUCzVnpkN2qQyFQy7cgxSFMAJ0pzRD+pvvaiVKxq/RJ2D2FlOK+6AftaUMjis4YxCZJOzKpqve1Vd+W5hDxwFx3JICFUOEsc7+DzLZHhd2Wc1wztRd6v+IoU4c62kWncgPgNPaLyM2WmxdEFTMXP3DcB/HPy7j3/3hLzR5DjKxu5YUyPuI+7vpSuYsBT81LxYzEkprTxyFbYqWrRxbmkRbfPWnEuYgQzswLGKCsO99KmbeHYYXLL0KmXLbHPOo+cvRMmy5OzZ7/NizTCn9R1PPt1uhDyl2rHg8gtQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nxp.com; dmarc=pass action=none header.from=nxp.com; dkim=pass header.d=nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=RQ6mPfcbdWHiwGZuUcE7ajMn3ERZw0VSdcFVG5P3GN4=; b=lKewfL7JsFAotBH/UwkDXlgPE4E3xQixUtBs1mbgRLBuYYqgmDpRZJl0FKRYX1xcEIqbQ5wsYn5aicn8vClymuQNmvOo+4ArLvaqygsKaa0EGDvCAyi8J6ohCUORtW+IxKsvHvouTDVsk43ydqdVxLN0LKBfaxxfFGgLcjpwTfaFeiwmfuRAd6OXPVnXBXV/cI1pE7wCdlq8KZYgqMIyl9Hi12vglAvcjZ2lB/WSIp9GWCaHL6ByDvV7Ia4t7AB/9Ki91N9lVgTeDELJI03aTJSLpC6az8dhuETW1vFSJqaopV+8KGHheC2lkbnxS3GTZC/xKkLbZ5hlkWVRjB6J5Q== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from AS1PR04MB9287.eurprd04.prod.outlook.com (2603:10a6:20b:4dd::8) by AS1PR04MB9699.eurprd04.prod.outlook.com (2603:10a6:20b:482::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.92.12; Mon, 8 Jun 2026 07:46:53 +0000 Received: from AS1PR04MB9287.eurprd04.prod.outlook.com ([fe80::6f30:763d:17d2:b79c]) by AS1PR04MB9287.eurprd04.prod.outlook.com ([fe80::6f30:763d:17d2:b79c%3]) with mapi id 15.21.0092.011; Mon, 8 Jun 2026 07:46:52 +0000 Date: Mon, 8 Jun 2026 15:48:22 +0800 From: Liu Ying To: Piyush Patle Cc: Marek Vasut , dri-devel@lists.freedesktop.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, Shawn Guo , Fabio Estevam , Peng Fan , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Lucas Stach , Laurent Pinchart , Thomas Zimmermann , Abel Vesa , Pengutronix Kernel Team Subject: Re: [PATCH 00/39] Add i.MX95 DPU/DSI/LVDS support Message-ID: References: <20251011170213.128907-1-marek.vasut@mailbox.org> <20260605121112.27866-1-piyushpatle228@gmail.com> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260605121112.27866-1-piyushpatle228@gmail.com> X-ClientProxiedBy: SG2PR01CA0181.apcprd01.prod.exchangelabs.com (2603:1096:4:189::13) To AS1PR04MB9287.eurprd04.prod.outlook.com (2603:10a6:20b:4dd::8) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AS1PR04MB9287:EE_|AS1PR04MB9699:EE_ X-MS-Office365-Filtering-Correlation-Id: efcb25bf-12b8-4189-39d1-08dec5321b0f X-LD-Processed: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635,ExtAddr X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|19092799006|1800799024|7416014|376014|11063799006|4143699003|56012099006|18002099003|22082099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:AS1PR04MB9287.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(366016)(19092799006)(1800799024)(7416014)(376014)(11063799006)(4143699003)(56012099006)(18002099003)(22082099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?hKxmMz0FmPNgN6rzAoQ1BR2IXVvc6o4xxwAkJcH22aLU5b0FnCm/Z+qUvQUi?= =?us-ascii?Q?wgo6QoTtEoFfs7K/z9MB2idsOMfoFyvnZFueiq7aKnZicCsfn++PS55T7hh8?= =?us-ascii?Q?dsr4I5TXcHN+D41CnZ9vIsmxZ7pojIlDEoM5bRELdEbrRCqCcOpQgPhEH150?= =?us-ascii?Q?yMVPse/wjRKTzW85y4HQt3I4zJnwHypOX4foZRkdxXA6nDHilx3p4URQnL3/?= =?us-ascii?Q?QlKaN+9eDDv55qyW1NhZ0MXvQHOhXVkca6upruZahjDHLinCcRiGLixv6MJG?= =?us-ascii?Q?+zVDKc8gLInqSd5VHD2OiR+cvhOnh1opaYxpaggasXul1jaoxYZZ0zf4CT8d?= =?us-ascii?Q?WBSJ/StPoaJ+XPyP+4ML5KlF1AVQ66REYoMyJzFsujO7hAB4Nu1w8MWtONq0?= =?us-ascii?Q?iddXlOQKBsPYtkVmpQrx1OessJzDeGIzPiL6U11qlEDgU0Du8Io/vdvWT4sm?= =?us-ascii?Q?2TSo/EnPBAtDZXyRptxGjiSPG0+K8y8FWLmNzF7AWMjMJWV5daHEpccMW+0v?= =?us-ascii?Q?XcPBLX0VXsfmByXAs4J5daEJOweXyJ1y7+ltI+pwT3iAOwudnguYRdz2+TiY?= =?us-ascii?Q?H7epwfwebRc5CAR8XDCEt93LDNR5A6ByQVS3LBPWKca3yzW++tA7ZLsAODST?= =?us-ascii?Q?HLvFoVrNdr18mBxbtflpb7F33/g/pbhZvXguqPEd6Gp/dgqfNn/47TuNv/Kx?= =?us-ascii?Q?l+TwAF6R0+YtkYKP2lEFP2WhZiivcQFSp9KVu901YYvrRloxcyKuft+6D6CF?= =?us-ascii?Q?iNm/7V80x/3p7NVw7ScPKTfkHw0HhAu44E3ocDI6gWWwzIkTxBb7aGm7wsoO?= =?us-ascii?Q?1+fY5m29n+Nn31FK0DQGP4cP1FY4j4riIpEIzikAaKd+Rt6+kYO8cfmDEyLq?= =?us-ascii?Q?y/aHS5+cTTgX0DsUkpAPjuc1nmqru3V4ot20bmLxPMSBNyudg77i7i/gODc+?= =?us-ascii?Q?9T2FYRhQWk5zrQp4aA99pCyy6uYENfJm/wHSNUtMrn8S0JuixGnwa9lhQFB4?= =?us-ascii?Q?bJF3yTAYxo6ey1CBkc5ScMcV425Isi6WLCODczW6WScDFQ4CqkCLbQaJg7DY?= =?us-ascii?Q?MuFJkGG2JgnD/doevZUkZQsQ65Sg1/8xKL+cGdpHjgM+l+meq+ox7ttxeSoD?= =?us-ascii?Q?WfQe3bBPEc81oh8q93Ef38hx7JLMO4EaWr4GPPywfvN7GEwOSM2c5GxfTZqg?= =?us-ascii?Q?7O5fm9kIgPkE+z6dfzRa3QzACW6PfT/xhfqKCvtQK5ftGWwXWYwsxkzZ4ijy?= =?us-ascii?Q?vygCt+yXbvAcJ8YeW5IttEZfqRFYQ4qosvEFL8o/ORIzHVvyjuHxSGMz3dh4?= =?us-ascii?Q?eu/0U0cw1kL8qb6XjJiLltR501bsIYSf/9lTlw3e6bTMlBqd2ciqp5LIvYEe?= =?us-ascii?Q?QXUV8UVH8J2d3fWkFRl7ET0agIxgbo0dO9wA/lyhjTxj+v8Kah37zxj5WjsU?= =?us-ascii?Q?KywDVL9RNOUF8xJh8EighCIRza8kYPb0qG8qpl8ZEc6jA6OZiDtWe67/2kLx?= =?us-ascii?Q?Nzekbde8EIcT6KjEJbXgFdfls+NKf6GljagKGtiMDq0HnDmoIJo5FLiK+0ct?= =?us-ascii?Q?0jP8a3wxivErj3szEl80rmS1adlfJLfZKZlEH6Nt8/tFpNP0MGshd3MAxDa+?= =?us-ascii?Q?n/JSBhxM7JRYdSLO/SLOMvWNYnTI2Fj0YfJb2NelVROKvWYUTw0drgiruVhI?= =?us-ascii?Q?IreikOsI+WC7BQjZCYj63sVqqAe71b8nodfRdFCALGpuGQqYx0FlSE2BQYS2?= =?us-ascii?Q?rQilABCkMg=3D=3D?= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: efcb25bf-12b8-4189-39d1-08dec5321b0f X-MS-Exchange-CrossTenant-AuthSource: AS1PR04MB9287.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 Jun 2026 07:46:52.8241 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: jmdnFYWF/dgbqvJyt3khy4OQwqCnfxhnwF3OQkghHv2jueTw6IYzXhl91Oc1OAZaP2LcQ3q+TRlcaQVMKjbi7Q== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS1PR04MB9699 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260608_004659_813902_7E2C7857 X-CRM114-Status: GOOD ( 22.99 ) 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 On Fri, Jun 05, 2026 at 05:41:05PM +0530, Piyush Patle wrote: > Hi Marek, Liu Ying, Hi, > > I brought this series up on the i.MX95 15x15 FRDM (IT6263 LVDS-to-HDMI on > LVDS ch1). It mostly works, but I ran into a few issues around DI routing, > LVDS format handling, and DC enable sequencing which needed rework before > HDMI would come up reliably on the board. > > I don't see a v2 of the series and things seem to have been quiet since > November. Are you planning to post an updated version? My plan was to enable prefetch engine support[1] for i.MX8QXP display controller and add device tree for a whole i.MX8QXP LVDS display pipeline, before adding i.MX95 display controller support. Unfortunately, it seems that Marek is not a big fan of [1] and I'm busy with downstream development so the plan doesn't move forward well. I still think [1] makes sense(maybe I need to rebase it on latest drm-misc-next), so I'd like to see review comments on [1] and hopefully people think that the overall idea of [1] is ok. > > I've accumulated a fair amount of rework while getting this running on the > FRDM. If you're not planning a v2, I can clean things up and send one based > on the current series. I still think that i.MX95 display controller driver should be in a separate driver, rather than sharing the same driver with i.MX8QXP display controller like this patch series does, because the two display controllers are quite different as I mentioned in comments on this patch series and in discussion in [1]. Also, the common part between the two display controllers should be extracted to a common helper library as I mentioned there too. > > Thanks, > Piyush [1] lore.kernel.org/all/20251027-imx8-dc-prefetch-v5-0-4ecb6c6d4941@nxp.com/ -- Regards, Liu Ying