From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from PA4PR04CU001.outbound.protection.outlook.com (mail-francecentralazon11013051.outbound.protection.outlook.com [40.107.162.51]) (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 1A39E23EA92; Tue, 17 Feb 2026 18:05:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.162.51 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771351510; cv=fail; b=IBK3Bz42W6Lo4AgnjGjNyjXGyq09Awqpsgg2ZxR/89qv139d5h/vtt3KPwNYc/pyASxuOrYYlLOB8ndGPsM+GDuIUwz3u/+1uCT6Qtfx/pG8HyNy5/zW7dfcZJ3tmpAjMcRNSnS065n4DCudkuRwLNq3uGzgyWVHdsub+LmQ0vI= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771351510; c=relaxed/simple; bh=GYJjwATs+Vz4jCT6M8y6OUZ8nBliROcOjsiXtkEpxBM=; h=Date:From:To:Cc:Subject:Message-ID:References:Content-Type: Content-Disposition:In-Reply-To:MIME-Version; b=HfkIgTN3FczDtuC+yjHO3JhU5LBryrDaec3APqtH6gzwNWl3fh45W1APhLgl2+ert8nOQ+eQDUCqEFDUmB6woRBAN4eFcxHBLDpVhi8R7dr3dLw1zepNHtA2DI4FvbXfSnGTJGWtxQGtCB3gN1ybxDYNUMnQd2AxdzB6uk1fKXg= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nxp.com; spf=pass smtp.mailfrom=nxp.com; dkim=pass (2048-bit key) header.d=nxp.com header.i=@nxp.com header.b=FI/NPZ2U; arc=fail smtp.client-ip=40.107.162.51 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nxp.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=nxp.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=nxp.com header.i=@nxp.com header.b="FI/NPZ2U" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=p1y9oD/+wCozJwAtnydOBPWgVX6pSymcI3K9Kx78nV+0RL1k/y6yd1XPA/uG43SLDMSnFcATtTV08M9ACkMf93uiMUALgZfkj5nFH+ExvrQFz+BjpO0KsaAA7iG5j53kqa0tJZXwzCio+j4+sEAxsyxCe3I7Dokg2f3/fFKpfDYDhvgyCqhRjH8QPmrvxPhbtkZSI23GHnyDSBWqZW4uP0CoIg4VV7TvXhp72e/8s25/KkxPq2+GZB/Dbr9MgN2VvqMAsiTCc31Msk3b3GV1QmTYn3KnA0rAjkkPyYRXSmGs6OSUXFU++EMlEm8wis4x5tZYaacshjxYhhpeLcto8Q== 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=/cz7ffjX08G1tZ7+W4WNg3wdImcdYDFriyDoSdwWHiw=; b=Q6xbD9YWy+2OjxLY5gS4jq7fhLePqYFa3vxrUxKHkz4vQlrxXEPCJ/YGtR/MH5N3/+m+zeGbwJcNC7gN4NxRKZvSG/UZJ2/byGgmZWVH9X7l4pbeQlsG9NBEYzM55wWOpjTNSZmCi6QmrMXgDjGwrzJDaTWxiQedcdLKVsSdXBCwHftakM7S4nKLNeA53fXVbdpDo1SS+sLGDw5F/vDEW7mAMC5alUHFnK1ZlFeZFWSabIqodWiQeABxLdoDS7aOQs2jlpWlFwYXpEFcNNQqwoDA3PRolEJYUfuMMPVbQbaMO054AEMn6XVAKuuqkgFvcjCfrEbFny3kFRTULONsFA== 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=/cz7ffjX08G1tZ7+W4WNg3wdImcdYDFriyDoSdwWHiw=; b=FI/NPZ2U/TbOtaN8HqcvsoddGFLwMqTsmWvuQRtAckx03IyTRDt0dfFcR7Wl9CT+B74/d2Mha9ZcDARold4tE9vwznVr9G8qh9WZEUj2WBZMkntOuHwEAs0nU50HUY/Jv7jE3KTpq/u10frx+NB5oFxR3urhWoTMaQ7+OBsRBG5L99h1HCWKKlnuatXOrPmeVKUs7ZthsYqEuOdtR16iraSroy1D6KdyVk1rG6fdLTS1KYkaDo/bGRTRVh5R+kYjBS1q6qNV7WzKOMR4tuE01ef/R1Tdw77TSriAyr3vtBJApRtavZ3+JBNcsL92dGBa826cnd1/dNyXcGL9o6Tfdg== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from PA4PR04MB9366.eurprd04.prod.outlook.com (2603:10a6:102:2a9::8) by AM9PR04MB8507.eurprd04.prod.outlook.com (2603:10a6:20b:432::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9611.16; Tue, 17 Feb 2026 18:05:05 +0000 Received: from PA4PR04MB9366.eurprd04.prod.outlook.com ([fe80::75e4:8143:ddbc:6588]) by PA4PR04MB9366.eurprd04.prod.outlook.com ([fe80::75e4:8143:ddbc:6588%6]) with mapi id 15.20.9611.013; Tue, 17 Feb 2026 18:05:05 +0000 Date: Tue, 17 Feb 2026 13:04:57 -0500 From: Frank Li To: Akhil R Cc: dmaengine@vger.kernel.org, linux-tegra@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, vkoul@kernel.org, Frank.Li@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, thierry.reding@gmail.com, jonathanh@nvidia.com, p.zabel@pengutronix.de Subject: Re: [PATCH 3/8] dmaengine: tegra: Make reset control optional Message-ID: References: <20260217173457.18628-1-akhilrajeev@nvidia.com> <20260217173457.18628-4-akhilrajeev@nvidia.com> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260217173457.18628-4-akhilrajeev@nvidia.com> X-ClientProxiedBy: PH0PR07CA0005.namprd07.prod.outlook.com (2603:10b6:510:5::10) To PA4PR04MB9366.eurprd04.prod.outlook.com (2603:10a6:102:2a9::8) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PA4PR04MB9366:EE_|AM9PR04MB8507:EE_ X-MS-Office365-Filtering-Correlation-Id: 99753d4a-4f72-4d1a-015b-08de6e4f13f3 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|19092799006|1800799024|366016|52116014|376014|7416014|38350700014|7053199007; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?RzDgAZTBSY/59bM0+JEGJcBqnbWFqHySofw0IwIMpIQ7eSP/HJHJSt77ygBg?= =?us-ascii?Q?OkAG0DCe81KVoRI5zEtGPpIII7LpDtcKQtwAVzewtZ+6kjjdomVD5I+TtNCQ?= =?us-ascii?Q?MyM2H7nKqArUWr9eUuCV95EyQh1Q1FQaE8wUG20neM9dgVBTtSgTWcydJkDR?= =?us-ascii?Q?hNAw017zQO9HRUaHEiyjQ1Rueoz9jp56jZ0e+YDWQOtnuNti6+1CobLCLPBc?= =?us-ascii?Q?Yj2QAIcslFRrdfHiXo9RT8LCOAu8FZjB2/EAwHKGiUpNZ9ngQwZWvDS6WacH?= =?us-ascii?Q?kWqAtvL4KZpztsXmWsDufE2YF9bMKdcw6LkdlgrOyeD60odDKcqds+owsyFy?= =?us-ascii?Q?b2L5pL8mPfPpGdUscWk7ENREfa+8cBVkPylp1BJMF8NWTLuCHMYNsN6hqqr8?= =?us-ascii?Q?KIuh62G6vNPDQ+seoulWqCwV+ny9/7vx5lPCgaFLwS5ORuakO/SV9dr09CD+?= =?us-ascii?Q?Hhi8l1Txg8I+5eAFEZxK5FrvlpfPfxE9ZGcr5CaHxUmDbfWo6Dl3dNCn/JPo?= =?us-ascii?Q?qs6HN6LT2sO7jR5RFR/gMFYsQJLXLQOs/s+ZfkDma0lEyBm8YE0+VBIz64lp?= =?us-ascii?Q?s2N3vpcsDDe/773fmqpQSsIuo6N6tSkvMo6c1bs+rXLsGcy6AzGeKZ56Jtlf?= =?us-ascii?Q?TBs9CWpDJhUFD6uyXGvPh2hJcUvoVP0/kJlHzOq23cW9lhvnBwbGyOgWceXd?= =?us-ascii?Q?EIO3FowI58mSArjFjzM9g2fWswZHLMuKQd1mKkDTrl17oHQrVnSuJMMEHqZ9?= =?us-ascii?Q?kSlHAhOk/i555c//DJr/XYx20gs/4RPkOpBEb5KSdeQ3JjimJVXPbq4cKcH0?= =?us-ascii?Q?n0bD88YWrRGJKYQbah2R/jF8qvWoWCoODeiMs/7qGcLfT4Vn/w4j2t36YGPg?= =?us-ascii?Q?pA6Gb+lPVWTne63ydmQYUxT5B21EIVxsRacX1GKQqGfYWvCIqEtHdASXXThf?= =?us-ascii?Q?W94xyKBd75HnyxZXJPzukIPjyv0+3LYTwCr6ux66S2liJyD3LqkwbBlV21m1?= =?us-ascii?Q?VKqLSIdt6dN/Yc31ySiKRS/9qslfqEyDuy3kGN6WvRS7c/TjtUShOpm446io?= =?us-ascii?Q?hmzDip/SpMPz8avwp84lzUvGR5E9/rU5K0mQ6OTBMZzn4XTQL66tukFHoCKM?= =?us-ascii?Q?r6Yeg6tJpJavPXv+tIbcHrBiZcId1QBFZgcgOflR3byFJFnT3sB1aFjWVjhx?= =?us-ascii?Q?B9adrftgWJ1m3c/1BYp2afCU2mm+9lz0kU5UCT0pp2cRal6yDFcJC5k3EYSE?= =?us-ascii?Q?s0jCzotbL/8chHVGR37jnE6UWLVVonQOZStp85pVMBCUbhHKDXRMc0kv+cWq?= =?us-ascii?Q?D6Lx7sGWxKd4fZKXolYGOHydP7fBD/si5dj5rqTpE9450raBFXk9FN70UFHM?= =?us-ascii?Q?IWlCs9FpO1AWC4AmWzS2EF7Co4swKSz9TC2RuzgyI4KoHcvxu3YTuTHzffm3?= =?us-ascii?Q?AQxDuwDWGymRrTEM3LQwyiVoafEEc1Q4jo80DvfgAmTNE6u9iHo3imt8GpQe?= =?us-ascii?Q?pGjS7UwxcKzXJd1QccLFZtEV0tCIqNOQM11uvZzgkQIelW0vk5hNGuqu71QQ?= =?us-ascii?Q?ihB/pUpxW072JCC5NDQ+uWNSXWSWDAK3xuEFR9aQoOf1nqG8zD0lgIYFwp3u?= =?us-ascii?Q?gPyz5uHKFfucR7IZNVNRi7E=3D?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PA4PR04MB9366.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(19092799006)(1800799024)(366016)(52116014)(376014)(7416014)(38350700014)(7053199007);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?095Xepf4FCfS1CQAaOqmQOeJnl5+ZLNbsXnOCvkNpZpeStHy8hjEyGbht/T6?= =?us-ascii?Q?dw+oKlK8ihnipXO1GK28Zz/oBXlCGkQrc4fjDGHdQ0okjjprUlmOZrtI63a5?= =?us-ascii?Q?9jKYnTggF8Ncag0B9eveDhz1dnR2QH02LUw2ENqErZtHVg0asFsmM50QCkIB?= =?us-ascii?Q?stKwyoJ8aShdjy46sdmJZoOyFWuBrO0V52sHrTxlmQopuXYbq7d14DxCwhfF?= =?us-ascii?Q?quB1sNKEt1/uL1bWrlx33vI45GEskvL9p/RcEXCVQDHCSzqxVXbki/5UbWtJ?= =?us-ascii?Q?/TwhJNPVs6p8cyg9JWg61HkoW5CeaIHoOF3bg0c6yw+COW1+5iG7rYAUSpNO?= =?us-ascii?Q?A3y3YOce0wqq7gbj0RwbGC4fEyQG80T6hxKmHn0B3xA0CxRiqZR9Y4OJlQlV?= =?us-ascii?Q?ZZeKZBheXA4XoAv17BFXs50XswR9LjbvVKqB3ZQXZYWCOJqVpqG/qy/OTpR6?= =?us-ascii?Q?U+/8ufS4435VIGFDqHEH5vTn+fF/suMu93DyvM9fUq04Ha1jQ2fqtslJ9Gyf?= =?us-ascii?Q?4YqtPUkqwgVvS2kgmX2f3TVHJ9OFVWQaEWfEa4QjoI0ooh0TP2rIoWov6cIZ?= =?us-ascii?Q?jIlNdgIallpde0DpjQGiJK3kVqaLb15GyzoRz30GjYJ1GznySS8ZU3SSPjRc?= =?us-ascii?Q?r1kA5TxRnYLQcZgX8rtWsnA52CUjU7S8GccafYnBG9v5tcjaG97wWKWGsuNj?= =?us-ascii?Q?Tn2676/7nZh8IEb5RFnAu+jNPXK/NU/iAMCS5lkLe5fVf6pGtudCP5byqZ9F?= =?us-ascii?Q?dOYug/6Wej06Gf0Pb8LJNsbVBe3FgBp07Dx2SLFKg2RULpGCuALhnjtY8re4?= =?us-ascii?Q?uXKZxv+1+PribG/3q4KIMrSRI75mMwAjocqNdwpfD8Xcc1POjODMTDXE9KV7?= =?us-ascii?Q?8sO7Fy7Dq/QovakzGUGpYystPanUQkn0bgJ6qeB+2fv7kP5nncvFyw2X7nXw?= =?us-ascii?Q?MFRtCJjaA3yNnwawIW7lwbw1zJR7tCEtNdxMjdI5Jx37gmZeMiYBIJdRKqJb?= =?us-ascii?Q?krrlUqTSw8ShC8Br3Jy4LRQ652olqBWq6x6pe7f/wlnrCsCvyFO41w9DPPJ2?= =?us-ascii?Q?zmNQoq8lJSPKj55pqZP8rBLgnWVGZtKqXyUVs6ufF0KCrMEfu4WBASFN0F0+?= =?us-ascii?Q?o1pwx48xnIg8jHUbSwbA/XxyvrvDzPlkuPm78Y7FG/Bu0aRL16jtWHrYMV44?= =?us-ascii?Q?zbXhpLlN3myWWlkn8CSFnyryzVCT7EkW+JCwYM02pDOBY4+yDwurOaBlPUwM?= =?us-ascii?Q?40t7TH33pM6ZHjx4kxh48E4kgfjsAQml9df/7SbkHiT4Mepz785D6eEPKtFA?= =?us-ascii?Q?L1T/6UpV5zRGHL/8FpHpMSGjrOpwXg1VQw8KVpUr+x2XGWnkQ5JYexA0juQs?= =?us-ascii?Q?/7sAOw4sTo95n163P7yYBYP3y2pLX0Renxx7y80xReMAAS9gAOB5U3sokFF+?= =?us-ascii?Q?fr7MJ8W5pYDYrOKEIPpQv5LA0x7GkV5D6NKPbvz8v1zRXBkRFxyEgKGiOzrc?= =?us-ascii?Q?oouZg5/254DxtuI4eA/5/OmUTeb62T2lAYnEL1D5sV+fR0e/8r5OiabMPpMx?= =?us-ascii?Q?ejvSTmEEwdj7HLca9dJLx7RBj7aQ3KKze3Yn7zrySe070Fqt9mUvuHUgfVO+?= =?us-ascii?Q?H9tsycfTyJ8NKEkT369lzQKewx50zayzynTAgfAs/aS44pDWrbOJNXUaNrDV?= =?us-ascii?Q?r6ycOozqUEo6QNC5ycfo+fWTb2s5VVDGu1vgTQHuauuQIqL8FzfmXgHtJjfp?= =?us-ascii?Q?/Jz5cSod3Q=3D=3D?= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 99753d4a-4f72-4d1a-015b-08de6e4f13f3 X-MS-Exchange-CrossTenant-AuthSource: PA4PR04MB9366.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Feb 2026 18:05:05.2601 (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: tsxx7sYfs0XeSsKETn0QoJusay2CoXOg1IihEr7yUGFJStcHAcj0c8ipENnEV8J2rl5UqAIO3PrXI7FMoH/GGw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM9PR04MB8507 On Tue, Feb 17, 2026 at 11:04:52PM +0530, Akhil R wrote: > Tegra264 BPMP restricts access to GPCDMA reset control and the reset what's means of BPMP? Frank > is expected to be deasserted on boot by BPMP. Hence Make the reset > control optional in the driver. > > Signed-off-by: Akhil R > --- > drivers/dma/tegra186-gpc-dma.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/dma/tegra186-gpc-dma.c b/drivers/dma/tegra186-gpc-dma.c > index 4d6fe0efa76e..236a298c26a1 100644 > --- a/drivers/dma/tegra186-gpc-dma.c > +++ b/drivers/dma/tegra186-gpc-dma.c > @@ -1382,7 +1382,7 @@ static int tegra_dma_probe(struct platform_device *pdev) > if (IS_ERR(tdma->base_addr)) > return PTR_ERR(tdma->base_addr); > > - tdma->rst = devm_reset_control_get_exclusive(&pdev->dev, "gpcdma"); > + tdma->rst = devm_reset_control_get_optional_exclusive(&pdev->dev, "gpcdma"); > if (IS_ERR(tdma->rst)) { > return dev_err_probe(&pdev->dev, PTR_ERR(tdma->rst), > "Missing controller reset\n"); > -- > 2.50.1 >