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Wed, 25 Feb 2026 02:01:23 -0800 Received: from BUILDSERVER-IO-L4T.nvidia.com (10.127.8.9) by mail.nvidia.com (10.126.190.180) with Microsoft SMTP Server id 15.2.2562.20 via Frontend Transport; Wed, 25 Feb 2026 02:01:19 -0800 From: Akhil R To: CC: , , , , , , , , , , , , Subject: Re: [PATCH 3/8] dmaengine: tegra: Make reset control optional Date: Wed, 25 Feb 2026 15:31:18 +0530 Message-ID: <20260225100118.45523-1-akhilrajeev@nvidia.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SN1PEPF000252A3:EE_|PH7PR12MB7235:EE_ X-MS-Office365-Filtering-Correlation-Id: f6b10928-a342-4e28-37ee-08de7454dfe1 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700013|1800799024|7416014|376014|82310400026; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: rbVigkUwzXt+B0piruR7F3Qetus0Ypb2iUqkz4uNn1ZBvifyAaj/BJVT7l2azJJ1qMup6SR13WEj/t36Y6kgkh3T6zCUBaVyNpu/V+msuR01a2hcoKRjNMPbANuMevc0mjKFfntHM7x6udUzLA788u5MGaqYoTlZCNZW0DarE3z+GFItYmLqrH36MYYWtjyiYKMzvicivhfTgAyjiNwqNp3lkm0LacomuoG0vW6roo1smpq1xHY4we//iomzudf8LnyDjmB797j7IarXIe+n8r6pge0mzhifzaQbbZyyLppjb1kLt0tVE969GUHvnJwjRZGn5EMZvuW/dXqk9Wd5DFatW2qm4QdFkWccyX5fLEvX7W+s5oz2QOco1cjGmogMfiJXtMb3686lED7lMPucQBFy6PDBT3B9649mXB6L7yboLBbNPyYSuQdqEKzwmgKV X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Feb 2026 10:01:41.4260 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f6b10928-a342-4e28-37ee-08de7454dfe1 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.232];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SN1PEPF000252A3.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB7235 On Tue, 24 Feb 2026 17:02:24 +0000 Jon Hunter wrote: > On 24/02/2026 05:39, Akhil R wrote: >> Hi Frank, >> >> On Tue, 17 Feb 2026 13:04:57 -0500, Frank Li wrote: >>> 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? >> >> BPMP is Boot and Power Management Processor which is a co-processor >> in Tegra and runs a dedicated firmware. It manages the boot, clock, >> reset etc. I will put the expansion in the commit message in the next >> version. Do you suggest adding more details? > > Technically you don't even need to mention BPMP here if it confuses > matters. We can just say that for "Tegra264 there is no reset available > for the driver to control and this is handled by boot firmware". Ack. I will update the commit message. Regards, Akhil