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CTRY:US; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:dc7edge1.nvidia.com; CAT:NONE; SFS:(13230040)(1800799024)(82310400026)(7416014)(376014)(36860700013)(921020); DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Feb 2025 10:42:01.2319 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 999b816c-df76-44a5-331c-08dd4b51e208 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.118.232]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CO1PEPF000044F2.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR12MB4045 The Tegra UTC (UART Trace Controller) is a hardware controller that allows multiple systems within the Tegra SoC to share a hardware UART interface. It supports up to 16 clients, with each client having its own interrupt and a FIFO buffer for both RX (receive) and TX (transmit), each capable of holding 128 characters. The Tegra UTC uses 8-N-1 configuration and operates on a pre-configured baudrate, which is configured by the bootloader. Kartik Rajput (2): dt-bindings: serial: Add bindings for nvidia,tegra264-utc serial: tegra-utc: Add driver for Tegra UART Trace Controller (UTC) .../bindings/serial/nvidia,tegra264-utc.yaml | 73 ++ drivers/tty/serial/Kconfig | 23 + drivers/tty/serial/Makefile | 1 + drivers/tty/serial/tegra-utc.c | 634 ++++++++++++++++++ 4 files changed, 731 insertions(+) create mode 100644 Documentation/devicetree/bindings/serial/nvidia,tegra264-utc.yaml create mode 100644 drivers/tty/serial/tegra-utc.c