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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: D9ba37z32cM6wAKLW+exr+uXI5FvM2MrtOdmR8GEiF33v6ZWo62NLi56sqrSPViU0WyocC1oRRrjAkg7H3FAltGVz+N6ukaAGIB2CMX4/gHXDk0XK8PDJnEVeH0lPhcp1nxEuBaEzxxPv8Kjo09IJguGkLTt7LOfXF2SmC3+KAu6OQc9x9gLRepyMXJU3qf3sei68TkQdyOqSwIMQSitgbU5tlWSuNEKydR3kV5JflileGV8OVo08Gdus/Tnps06S1CvC8+WT2kf5HHL51LLr3DkFRx/2VFJ0n9gBsg7OxWUUa9WldYsrdngOgaWSD24ss8VTnVzVEnc6zMS4QGNtt3z+e1eOy7jMB1B0Re5uZpgADG5CVF9pbKoX3gG/OYMTz34PiA/ksAReGZ4GD7n0yExeqaVzfxiun3hCLOo43kA3gIH7m1J5gcHOe4SaZzJ X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Mar 2026 06:25:59.5450 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 0dc47325-7d18-4c30-4b9c-08de80c9648b 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=[satlexmb08.amd.com] X-MS-Exchange-CrossTenant-AuthSource: SJ1PEPF000023D6.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB4220 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260312_232607_540081_78868573 X-CRM114-Status: GOOD ( 13.21 ) 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 Add an optional boolean DT property "xlnx,include-stscntrl-strm" to indicate that the AXI DMA IP is configured with the AXI4-Stream status and control interface. This enables the use of APP fields in DMA descriptors for metadata reporting. This property is distinct from "xlnx,axistream-connected" and serves a different purpose: - "xlnx,include-stscntrl-strm": Indicates whether APP fields are present in DMA descriptors. When enabled, the driver can access status/control metadata through these descriptor fields. - "xlnx,axistream-connected": Indicates whether a streaming IP (client) is connected to the DMA IP. These two configurations are independent of each other. For example, in TSN (Time-Sensitive Networking) designs, a streaming client may be connected to the DMA IP, but the status/control stream interface is not enabled. In such cases, "xlnx,axistream-connected" would be present while "xlnx,include-stscntrl-strm" would be absent. Adding this property allows the driver to correctly determine descriptor layout and access APP fields only when the hardware supports them. Signed-off-by: Suraj Gupta Signed-off-by: Srinivas Neeli --- .../devicetree/bindings/dma/xilinx/xlnx,axi-dma.yaml | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/dma/xilinx/xlnx,axi-dma.yaml b/Documentation/devicetree/bindings/dma/xilinx/xlnx,axi-dma.yaml index 340ae9e91cb0..ad8afefe7ee3 100644 --- a/Documentation/devicetree/bindings/dma/xilinx/xlnx,axi-dma.yaml +++ b/Documentation/devicetree/bindings/dma/xilinx/xlnx,axi-dma.yaml @@ -105,6 +105,10 @@ properties: type: boolean description: Tells whether DMA is connected to AXI stream IP. + xlnx,include-stscntrl-strm: + type: boolean + description: Tells hardware is configured with AXI4-stream status and control interface. + patternProperties: "^dma-channel(-mm2s|-s2mm)?$": type: object -- 2.43.0