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(unknown [172.20.64.188]) by smtprelay.cixcomputing.com (Postfix) with ESMTPSA id E008240A5A13; Tue, 16 Dec 2025 20:30:26 +0800 (CST) From: Jun Guo To: peter.chen@cixtech.com, fugang.duan@cixtech.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, vkoul@kernel.org, ychuang3@nuvoton.com, schung@nuvoton.com, robin.murphy@arm.com Cc: dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, cix-kernel-upstream@cixtech.com, linux-arm-kernel@lists.infradead.org, jelly.jia@cixtech.com, Jun Guo Subject: [PATCH v2 0/3] dmaengine: arm-dma350: add support for shared interrupt mode Date: Tue, 16 Dec 2025 20:30:23 +0800 Message-Id: <20251216123026.3519923-1-jun.guo@cixtech.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: OSA0EPF000000CA:EE_|SI2PR06MB5140:EE_ Content-Type: text/plain X-MS-Office365-Filtering-Correlation-Id: 5d585da4-c115-46e9-84a5-08de3c9ee59c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|376014|1800799024|36860700013|82310400026; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?km1cN4dfSKCDuyr3aJlEu/DD5hPJLccNUQrfwZDuN5AW7yIkIjGzypfqtjw1?= =?us-ascii?Q?mA7q7EXSIWJAkcDa9aSUD0znJthKWJ1O27JRmdIcXQbJy3tqd81jSISyLue8?= =?us-ascii?Q?pDFu4+aN9DNOKrWby73Yd7lDugWCI2N+UAa7BxtKkIkuOnZSvakMcDZWtpfT?= =?us-ascii?Q?BFCGZE5ZZPwBa0MXL67T7yH9qYS8+n25j2T9dQ+BKOS+aCqNKJq6tS23f2yq?= =?us-ascii?Q?eyoO9Mri0gxBDs9jdEu/3WfUx78O6/OKCNi575bHh+mbxuMYtWNYhxDyKjDD?= =?us-ascii?Q?bUrA2yMwl7m2qzutzMYNfD6XZAY5/hKHxvf3Jt1oQLQbsXkv14pG7iC9gxOr?= =?us-ascii?Q?C2RxM077wNhYnKs4G7hERGEpmOppoxGVwajHozRWhoJmEuc21XWFqQTzYweP?= =?us-ascii?Q?fgBVImwfUisVGrrS5HuddY5qWoiWtLCT9wRTEpxloL+WLEC50AtH0WQP2zL7?= =?us-ascii?Q?8W6GWm4Irzjqppuii8+WYpJ0nHeGHVObxCJZNSgGMLZiNtFUsRTIuaDq31+8?= =?us-ascii?Q?al8KldLiEaVlq7rMX1w67yoccJGcpMXdlUYjRIsvZx73izQpHjEwLUqXHf4K?= =?us-ascii?Q?RmzeCFOTJ9h9R8zprxryH5Aw7J5K1PYhgZSeWMKHVCbO0oduGumiiX2MeQZJ?= =?us-ascii?Q?y2oRJYyThVlfrsg7U92yBPiDtDcZ69iDUoMikWd93n7xw++3ihN/nf8Hhkue?= =?us-ascii?Q?BGX7vdXlTeJl9e5WiAmYZXVg5g79/WzLEJCs9ZwBUjEWUpRFD8hW/1QsLKcI?= =?us-ascii?Q?4VzgMCrcpdJvKDWkGq8He1Qj6jJYGqdhDZXKineyxOgUd/p/US5Z9dNfWKi1?= =?us-ascii?Q?qSrs6gB2dJA1IaVUhE5N5/bBklFEQ4+4TUu9ms74Vnd2LZz2o8lCNIrWcSk2?= =?us-ascii?Q?DZAnB3Kgjy+1kWeMXRa4I93QjG4NG1MJqAMfGdIlqWENR1CJA7b/w43BtoVO?= =?us-ascii?Q?Oqr/LwWK7rTjpXFgLOHhYy64kO6uo8iW/8W5XBvGV+Ga2kKhVFQ8oRJQBRBi?= =?us-ascii?Q?w/BlqCj1TTe8FTRZn9xUeAvAnqReYsShfUsLMGOF7Idvim9cpIRTK0KSbzCf?= =?us-ascii?Q?AHZXSUVW1moW+RKI1AZRKos8PPfm1gQe5gx1SQEkZArgzN2Jn6ObCWWfLoHU?= =?us-ascii?Q?7MO9KdSX/htuS1G14Xhlwms9cH9GMOX/MpuE/zKrTL3OwxdpQWKhJrN6ePZ3?= =?us-ascii?Q?jh8HYO7+7a3i03bQaNrSsvO52ItkRuYo2rRQbLqMrkd94m4cMzSckkTj1Qfh?= =?us-ascii?Q?SwsAtlKrRyxNhQBAvOZp6WT5Wbp71pvuu3jxbB8XqRNxaQQnPPfrA+i5HAMw?= =?us-ascii?Q?HFKpwIW+t8iFIoG77p23n+dcx9SStBs/lsUn5JPi59JypTNgnrDhUypCYrqC?= =?us-ascii?Q?ipers0iESHglaagJED0P2AsWOOxbPI7DueoC3PsyiES74Jql6nD9Ttp89W6z?= =?us-ascii?Q?1KJ/dYAcDmTTQjWXii69Q8EpOO6tlV6lDc8Vfn/ls5c0s4JDDpCjfokSmsUo?= =?us-ascii?Q?cBXGS2LjTT7KGZKhq7B3V9at3IiMO7wEtZwgLxjCFlHImrbvZT1gyxAgq44a?= =?us-ascii?Q?IVf5swDTGOQUIooYoSo=3D?= X-Forefront-Antispam-Report: CIP:222.71.101.198;CTRY:CN;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:smtprelay.cixcomputing.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(7416014)(376014)(1800799024)(36860700013)(82310400026);DIR:OUT;SFP:1102; X-OriginatorOrg: cixtech.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Dec 2025 12:30:28.5379 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 5d585da4-c115-46e9-84a5-08de3c9ee59c X-MS-Exchange-CrossTenant-Id: 0409f77a-e53d-4d23-943e-ccade7cb4811 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=0409f77a-e53d-4d23-943e-ccade7cb4811;Ip=[222.71.101.198];Helo=[smtprelay.cixcomputing.com] X-MS-Exchange-CrossTenant-AuthSource: OSA0EPF000000CA.apcprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SI2PR06MB5140 The arm dma350 controller's hardware implementation varies: some designs dedicate a separate interrupt line for each channel, while others have all channels sharing a single interrupt.This patch adds support for the hardware design where all DMA channels share a single interrupt. This series introduces the following enhancements for arm dma350 controller support on arm64 platforms: Patch 1: Add a compatible string "cix,sky1-dma-350" for the cix sky1 SoC. Patch 2: Implement support for the shared interrupt design of the DMA controller. Patch 3: add DT nodes for DMA. The patches have been tested on CIX SKY1 platform, the test steps are as follows: % echo 2000 > /sys/module/dmatest/parameters/timeout % echo 1 > /sys/module/dmatest/parameters/iterations % echo "" > /sys/module/dmatest/parameters/channel % echo 1 > /sys/module/dmatest/parameters/run Changes for v2: - Update to kernel standards, enhance patch description, and refactor driver to use match data for hardware differentiation instead of compatible strings. Jun Guo (3): dt-bindings: dma: arm-dma350: update DT binding docs for cix sky1 SoC dma: arm-dma350: add support for shared interrupt mode arm64: dts: cix: add DT nodes for DMA .../devicetree/bindings/dma/arm,dma-350.yaml | 31 +++-- arch/arm64/boot/dts/cix/sky1.dtsi | 7 + drivers/dma/arm-dma350.c | 124 ++++++++++++++++-- 3 files changed, 142 insertions(+), 20 deletions(-) -- 2.34.1