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Thu, 16 Dec 2021 17:12:12 +0000 From: Akhil R To: , , , , , , , , , , , , CC: Subject: [PATCH v15 1/4] dt-bindings: dmaengine: Add doc for tegra gpcdma Date: Thu, 16 Dec 2021 22:41:57 +0530 Message-ID: <1639674720-18930-2-git-send-email-akhilrajeev@nvidia.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1639674720-18930-1-git-send-email-akhilrajeev@nvidia.com> References: <1639674720-18930-1-git-send-email-akhilrajeev@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 18251bf2-f92f-4ad1-dfc6-08d9c0b73620 X-MS-TrafficTypeDiagnostic: DM4PR12MB5360:EE_ X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:5516; X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?UGZ955P9+MMfMk1MLF+72u0lqEoNMXN00gyl/hiPPQxWfimskM125flaXB9m?= =?us-ascii?Q?s50LlNsGB8Pks0ly+zkrrnnPvQLquADf//cCVmFNyvJtLRqkcwotjq37EM+u?= =?us-ascii?Q?P86EOmOLVmleCDWZ7eqsHBAiidIAzJIMy5+g+NyVpHVsDKMDZiBHfJBn8y1t?= =?us-ascii?Q?8SF8DYc14l4h21IQobkQc0vgpq2hwLVE0CE6GHdO6CmH2b4lv4c26WHc17wI?= =?us-ascii?Q?KrZn7LN1Ca+yJ2IHmBQjUPO+CZm9fvZ9MRCQhDBTKKeB+oeN2iCZn+bL5yn8?= =?us-ascii?Q?+NOvw6oNJBjScCBvFopTb+cU7lvIJ/Ub0C0s9THqcZNoflb4cx4ct9+EihEa?= =?us-ascii?Q?AsHuugPX7GFAp/wO9yDUDRYMRPkoWbOcCEgps0JoJAQyf6Hl5KAD00P7jWF1?= =?us-ascii?Q?xPxKn91VNeGZ/Rah4sFMH55Gctnr39i+DdfQYyy+/H7S/i1bmSBayzzi8Lm3?= =?us-ascii?Q?nxNCUWQXXW3EjG/92iGklSgp7FwczmO8gIFOECv6KunFeJ/xn/LFCAe2FJFH?= =?us-ascii?Q?xut6OeFLk+YzrSeOh35rwG4akIUtGTAYcrp876wFMbqYYNhUYU5uBNLXQUyP?= =?us-ascii?Q?IHLdmq77JKfl5y/GksCXgMm4V4TTEdfrZIS4ATpdUaz14vJW1yZdomfaLCIy?= =?us-ascii?Q?Sq4GZqD1PHch6yd/YIeLlelI4spqlVe9vEs+viyOGHZaxIiVT+Q3p2iJW9Z6?= =?us-ascii?Q?A6przNTfiGmiDQdhlNICURtJCns6mwLDN9ttjVw2bjSm9BWBBWTwRRiYb5U9?= =?us-ascii?Q?iLDc2D0ev7GCXTJ3MOVRej/lYHKlOSOHeSZ473u96CRtj8bvcvrHgcRVsXg8?= =?us-ascii?Q?aXockwuXvbvVZTYOoF3MNxXFaq0nhsX8IGcchgTTvlwQi6gOhvZkKhivdgs8?= =?us-ascii?Q?SJpqBSm80a9i5bi32qA9pEzyTkoH+uhR1DVima9/2GjrWmJMyXCoslJ2/nLF?= =?us-ascii?Q?SOS+0dHD2t25nz87Q70JmI+WTk34haTRR5Ink2VyF69re3k1ZT+g2Yi0dMic?= =?us-ascii?Q?pjB+P59ZdJkfB5YnNZ2HoZFZfw=3D=3D?= X-Forefront-Antispam-Report: CIP:12.22.5.236;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:mail.nvidia.com;PTR:InfoNoRecords;CAT:NONE;SFS:(4636009)(46966006)(36840700001)(40470700001)(8676002)(110136005)(26005)(2616005)(316002)(4326008)(107886003)(83380400001)(34020700004)(47076005)(336012)(186003)(508600001)(921005)(82310400004)(426003)(86362001)(40460700001)(7696005)(8936002)(6666004)(36860700001)(356005)(81166007)(5660300002)(70206006)(36756003)(2906002)(70586007)(966005)(2101003)(83996005)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Dec 2021 17:12:16.8250 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 18251bf2-f92f-4ad1-dfc6-08d9c0b73620 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[12.22.5.236];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT030.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR12MB5360 Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org Add DT binding document for Nvidia Tegra GPCDMA controller. Signed-off-by: Rajesh Gumasta Signed-off-by: Akhil R Reviewed-by: Jon Hunter Reviewed-by: Rob Herring --- .../bindings/dma/nvidia,tegra186-gpc-dma.yaml | 110 +++++++++++++++++++++ 1 file changed, 110 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml diff --git a/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml b/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml new file mode 100644 index 0000000..9dd1476 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml @@ -0,0 +1,110 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/nvidia,tegra186-gpc-dma.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NVIDIA Tegra GPC DMA Controller Device Tree Bindings + +description: | + The Tegra General Purpose Central (GPC) DMA controller is used for faster + data transfers between memory to memory, memory to device and device to + memory. + +maintainers: + - Jon Hunter + - Rajesh Gumasta + +allOf: + - $ref: "dma-controller.yaml#" + +properties: + compatible: + oneOf: + - const: nvidia,tegra186-gpcdma + - items: + - const: nvidia,tegra194-gpcdma + - const: nvidia,tegra186-gpcdma + + "#dma-cells": + const: 1 + + reg: + maxItems: 1 + + interrupts: + description: + Should contain all of the per-channel DMA interrupts in + ascending order with respect to the DMA channel index. + minItems: 1 + maxItems: 31 + + resets: + maxItems: 1 + + reset-names: + const: gpcdma + + iommus: + maxItems: 1 + + dma-coherent: true + +required: + - compatible + - reg + - interrupts + - resets + - reset-names + - "#dma-cells" + - iommus + +additionalProperties: false + +examples: + - | + #include + #include + #include + + dma-controller@2600000 { + compatible = "nvidia,tegra186-gpcdma"; + reg = <0x2600000 0x210000>; + resets = <&bpmp TEGRA186_RESET_GPCDMA>; + reset-names = "gpcdma"; + interrupts = , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + ; + #dma-cells = <1>; + iommus = <&smmu TEGRA186_SID_GPCDMA_0>; + dma-coherent; + }; +... -- 2.7.4