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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: xdZ4R90iNcYQu77M2arQMfjBukuw3DjblNZ3P/rlgXwBQiRYrRLCIBZkfUKdnhqVsRJAbfZx/mIvLQ3rE3UBcjY8hS3Li1raKTYg2NH9M/mvUDkCo5MlYZWYsx05bDQUINYSq/lKIVUt/jG23uwwyC/ZZDTmX/lE9/J4gK2sP/ADNFKEYG/5tBgf0hI/lkvUNjel4bYEdUJiH3hQZbN0hrJ60nP6MEaepkJbx2oNQGdWt0ZalM5lX2LkUMiDqih6YDbs00vk8grBE7ru8a/BwGGJxCYHUv9ubmBlkHg0XyuCIdySAeCLFkiWMWtJFGRrJY8iHz9Ja4O246W3mVdEns0JLiqGZ5tGgmF0dgjge6YGoUFKD/yw+M92NupB4XODmy3FYnkuxxObAanVFDVlBxgKosum99ChpD77a4TezhiU+IvAGJpGoTW+zn+GV71M X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 Jul 2026 06:14:39.9617 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: a8fecfa8-5edf-4bc9-c484-08dedcb831d6 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN2PEPF000044A8.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY8PR12MB7564 On Mon, Jul 06, 2026 at 10:24:00AM +0000, sashiko-bot wrote: > [Severity: High] > Does this incorrectly nest cp2112a inside an interface@1 node? > > The CP2112 is a single-interface USB Class 0 device. According to the USB > device tree bindings and the kernel's usb_of_has_combined_node() logic, > shouldn't this be defined as a standalone device node directly on device@1, > similar to how cp2112c and cp2112g are defined? > > By nesting cp2112a inside interface@1 with reg = <1 1> (specifying interface > 1 when the CP2112 only has interface 0), it seems the USB subsystem will > fail to match the OF node to the device. Could this cause the > gpio-controller and interrupt-controller properties to be ignored? This was already addressed in the v1 thread. cp2112a and cp2112b are NVIDIA composite devices that expose 3 USB interfaces, so usb_of_has_combined_node() returns false and interface@1 is used. > [Severity: High] > Are the properties for cp2112b also incorrectly nested in an interface@1 > child node here? > > Similar to cp2112a above, defining this inside an interface node rather than > directly on device@1 could prevent the USB core from attaching the OF nodes > to the instantiated devices, silently breaking GPIO and interrupt control. Same as above for cp2112b. No change is needed. Jacky