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client-ip=165.204.84.17; helo=satlexmb07.amd.com; pr=C Received: from satlexmb07.amd.com (165.204.84.17) by SJ1PEPF0000231E.mail.protection.outlook.com (10.167.242.230) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.139.8 via Frontend Transport; Thu, 18 Jun 2026 07:11:07 +0000 Received: from satlexmb07.amd.com (10.181.42.216) by satlexmb07.amd.com (10.181.42.216) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.41; Thu, 18 Jun 2026 02:11:01 -0500 Received: from xhdappanad40.xilinx.com (10.180.168.240) by satlexmb07.amd.com (10.181.42.216) with Microsoft SMTP Server id 15.2.2562.41 via Frontend Transport; Thu, 18 Jun 2026 02:10:57 -0500 From: Golla Nagendra To: , , , , , , , , , , , , , CC: , , , , Subject: [PATCH V2 0/3] dmaengine: zynqmp_dma: Add per-channel reset support Date: Thu, 18 Jun 2026 12:40:53 +0530 Message-ID: <20260618071056.2024286-1-nagendra.golla@amd.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ1PEPF0000231E:EE_|CY3PR12MB9607:EE_ X-MS-Office365-Filtering-Correlation-Id: 92ac8a26-6751-4980-eec8-08decd08c4c1 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700016|82310400026|7416014|23010399003|376014|1800799024|18002099003|6133799003|921020|11063799006|56012099006; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: QPyJCZGyNIfMlm3YVWNQs41TCQJjPhSauurZ85Z8PRGZBI/ReLZW70sU227DCjCWz0s0vOEBsqfdgEdsO3wZsiAORJXonWcOWuCQTV0fNRxRFxu1GNdo7YgswcJee3xAgke03KRkAiLYr3pV/wAdZOsHh/U518gLnS6Atw+wxwUWCBaayckDRJBM/n9ZDMNirt492aeH3fNc3cbTDLP7q5VVO06U3TaVpkIrMbXZt5mQO+ykPyvbFGlPj1KbYQ9QLGzcDmlROIoiP2VlSCfUSDtMHxD0MBY+gfg9X139bChZAvJtqNigdOcnYqPf4QvOqh88xJdBpnWl21cBj5+omBBTJPUlaxcrBghN14VkoiTvZMQRGKhsU26W5ZBpLHaQy6sjSOg/S1nV6/xYOpcekxJqEBQ8gpn8cqRIU5vWCJK902Tan4uSQLWkBdRvqeUd X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Jun 2026 07:11:07.6392 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 92ac8a26-6751-4980-eec8-08decd08c4c1 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: SJ1PEPF0000231E.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY3PR12MB9607 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260618_001116_837788_A7574BC4 X-CRM114-Status: GOOD ( 10.11 ) 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 This series adds per-channel reset support to the ZynqMP DMA driver using the generic reset framework, along with the corresponding dt-bindings update. It also adds a runtime PM guard in the IRQ handler to handle spurious interrupts safely. Patch 1 adds the optional 'resets' property to the ZynqMP DMA dt-binding. Patch 2 adds reset control handling in the channel probe path to assert and deassert the channel reset during initialization. Patch 3 adds a pm_runtime_get_if_active() check in the IRQ handler to avoid accessing hardware registers when the device is runtime-suspended, which could occur on spurious interrupts. Changes in V2: - Added patch 3 to guard IRQ handler against spurious interrupts Golla Nagendra (2): dmaengine: zynqmp_dma: Add per-channel reset support dmaengine: zynqmp_dma: Guard IRQ handler against spurious interrupts Jay Buddhabhatti (1): dt-bindings: dma: xilinx: Add optional resets property for ZDMA .../bindings/dma/xilinx/xlnx,zynqmp-dma-1.0.yaml | 3 +++ drivers/dma/xilinx/zynqmp_dma.c | 12 ++++++++++++ 2 files changed, 15 insertions(+) -- 2.34.1