tty layer and serial drivers · Supported

Maintainers

• M Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• M Jiri Slaby <jirislaby@kernel.org>

Paths

• F Documentation/devicetree/bindings/serial/
• F Documentation/driver-api/serial/
• F drivers/tty/
• F include/linux/selection.h
• F include/linux/serial.h
• F include/linux/serial_core.h
• F include/linux/sysrq.h
• F include/linux/tty*.h
• F include/linux/vt.h
• F include/linux/vt_*.h
• F include/uapi/linux/serial.h
• F include/uapi/linux/serial_core.h
• F include/uapi/linux/tty.h

Last 30 days

Most active threads (last 7 days)

• HOTtoday [PATCH v2 0/2] serial: 8250: Add AN7581 UART support
  2026-07-24 18:30 · 2 replies in 7d · Christian Marangi <ansuelsmth@gmail.com>
• WARM1d [PATCH v2 0/5] Add Laguna/Tensor G5 SoC and Frankel, Blazer & Mustang boards
  2026-07-22 09:56 · 1 reply in 7d · Peter Griffin <peter.griffin@linaro.org>
• DORMANTno replies [PATCH] dt-bindings: serial: 8250: Add Aspeed AST2600 and AST2700 uart compatible
  2026-07-21 01:50 · 0 replies in 7d · Yu-Che Hsieh <hidden>

Active reviewers (last 30 days)

• Benjamin Larsson <hidden>
  2 attestations (2 Co-developed-by) · last on 2026-07-24
• Conor Dooley <conor.dooley@microchip.com>
  1 attestation (1 Acked-by) · last on 2026-07-24
• Krzysztof Kozlowski <hidden>
  1 attestation (1 Reviewed-by) · last on 2026-07-22
• Krzysztof Kozlowski <hidden>
  1 attestation (1 Acked-by) · last on 2026-07-01

Recent patches

Most-recent 30 patches in this subsystem on linux-devicetree (capped at 30), ordered by date desc.

• HOTtoday [PATCH v2 2/2] serial: 8250: Add Airoha SoC UART and HSUART support
  2026-07-24 · Christian Marangi <ansuelsmth@gmail.com>
• HOTtoday REVIEWED: 3 (3M) [PATCH v2 1/2] dt-bindings: serial: 8250: Add Airoha compatibles
  2026-07-24 · Christian Marangi <ansuelsmth@gmail.com>
• WARM1d REVIEWED: 1 (0M) [PATCH v2 2/5] dt-bindings: serial: snps-dw-apb-uart: Add "google,lga-uart"
  2026-07-22 · Peter Griffin <peter.griffin@linaro.org>
• DORMANTno replies [PATCH] dt-bindings: serial: 8250: Add Aspeed AST2600 and AST2700 uart compatible
  2026-07-21 · Yu-Che Hsieh <hidden>
• WARM3d [PATCH v3 5/8] dt-bindings: serial: cdns: add Axiado AX3005 UART variant
  2026-07-17 · Swark Yang <syang@axiado.com>
• COOLING4d [PATCH v2] dt-bindings: serial: snps-dw-apb-uart: Add RV1106 compatible
  2026-07-14 · Simon Glass <sjg@chromium.org>
• COOLING10d [PATCH 4/4] serial: 8250: Add Airoha SoC UART and HSUART support
  2026-07-09 · Christian Marangi <ansuelsmth@gmail.com>
• COOLING10d [PATCH 3/4] serial: 8250: map UAPI port type to internal enum
  2026-07-09 · Christian Marangi <ansuelsmth@gmail.com>
• COOLING10d [PATCH 2/4] serial: 8250: export serial8250_get_baud_rate()
  2026-07-09 · Christian Marangi <ansuelsmth@gmail.com>
• COOLING10d [PATCH 1/4] dt-bindings: serial: 8250: Add Airoha compatibles
  2026-07-09 · Christian Marangi <ansuelsmth@gmail.com>
• COOLING10d [PATCH v4 4/7] serial: 8250_aspeed_vuart: add VUART over PCI
  2026-07-08 · Grégoire Layet <hidden>
• COOLING10d [PATCH v4 3/7] serial: 8250_aspeed_vuart: add aspeed,ast2600-vuart compatible string
  2026-07-08 · Grégoire Layet <hidden>
• COOLING10d [PATCH v4 2/7] dt-bindings: serial: 8250: aspeed: add aspeed,vuart-over-pci bool prop
  2026-07-08 · Grégoire Layet <hidden>
• COOLING10d [PATCH v4 1/7] dt-bindings: serial: 8250: aspeed: add compatible string for ast2600
  2026-07-08 · Grégoire Layet <hidden>
• COLD16d [PATCH 2/2] serial: 8250_mtk: honor DT serial aliases
  2026-07-08 · Carlo Caione <hidden>
• COOLING12d [PATCH 06/12] dt-bindings: serial: snps-dw-apb-uart: Add RV1106 compatible
  2026-07-06 · Simon Glass <sjg@chromium.org>
• COLD17d REVIEWED: 1 (0M) [PATCH v2 1/4] dt-bindings: serial: mediatek,uart: Add compatible for MT8189 SoC
  2026-07-01 · Louis-Alexis Eyraud <hidden>
• COLD29d REVIEWED: 1 (0M) [PATCH v3 4/7] serial: 8250_aspeed_vuart: add VUART over PCI
  2026-06-23 · Grégoire Layet <hidden>
• COLD29d [PATCH v3 3/7] serial: 8250_aspeed_vuart: add aspeed,ast2600-vuart compatible string
  2026-06-23 · Grégoire Layet <hidden>
• COLD29d [PATCH v3 1/7] dt-bindings: serial: 8250: aspeed: add compatible string for ast2600
  2026-06-23 · Grégoire Layet <hidden>
• COLD29d [PATCH v3 2/7] dt-bindings: serial: 8250: aspeed: add aspeed,vuart-over-pci bool prop
  2026-06-23 · Grégoire Layet <hidden>
• COLD24d REVIEWED: 21 (20M) [PATCH v2 2/2] dt-bindings: Drop incorrect usage of double '::'
  2026-06-23 · Krzysztof Kozlowski <hidden>
• COOLING11d [PATCH 2/2] dt-bindings: Drop incorrect usage of double '::'
  2026-06-22 · Krzysztof Kozlowski <hidden>
• COLD38d [PATCH v3 3/3] serial: max310x: honour rs485 properties from per-channel DT subnode
  2026-06-15 · Tapio Reijonen <hidden>
• COLD38d [PATCH v3 1/3] serial: max310x: register GPIO controller before adding UART ports
  2026-06-15 · Tapio Reijonen <hidden>
• COLD38d [PATCH v3 2/3] dt-bindings: serial: maxim,max310x: describe per-channel rs485 subnodes
  2026-06-15 · Tapio Reijonen <hidden>
• COLD43d [PATCH 2/3] tty: serial: Add UART driver for Cortina-Access platform
  2026-06-10 · Jason Li <hidden>
• COLD43d [PATCH 1/3] dt-bindings: serial: Add binding for Cortina-Access UART
  2026-06-10 · Jason Li <hidden>
• COLD42d [PATCH v2 3/3] serial: max310x: honour rs485 properties from per-channel DT subnode
  2026-06-01 · Tapio Reijonen <hidden>
• COLD42d [PATCH v2 2/3] dt-bindings: serial: maxim,max310x: describe per-channel rs485 subnodes
  2026-06-01 · Tapio Reijonen <hidden>

Needs attention (review trailers in, no pickup)

Patches with review trailers that haven't landed in mainline and haven't been Acked by a maintainer. Oldest first.

• STALE193d REVIEWED: 6 (6M) [PATCH v2] dt-bindings: serial: sh-sci: Fold single-entry compatibles into enum
  2026-01-12 · Prabhakar <prabhakar.csengg@gmail.com> · 1 Reviewed-by
• STALE189d REVIEWED: 1 (0M) [PATCH v4 3/9] serdev: Do not return -ENODEV from of_serdev_register_devices() if external connector is used
  2026-01-12 · Manivannan Sadhasivam via B4 Relay <devnull+manivannan.sadhasivam.oss.qualcomm.com@kernel.org> · 1 Reviewed-by
• STALE130d REVIEWED: 8 (7M) [PATCH v5 4/9] dt-bindings: serial: Document the graph port
  2026-02-24 · Manivannan Sadhasivam via B4 Relay <devnull+manivannan.sadhasivam.oss.qualcomm.com@kernel.org> · 2 Reviewed-by
• STALE130d REVIEWED: 1 (0M) [PATCH v5 3/9] serdev: Do not return -ENODEV from of_serdev_register_devices() if external connector is used
  2026-02-24 · Manivannan Sadhasivam via B4 Relay <devnull+manivannan.sadhasivam.oss.qualcomm.com@kernel.org> · 1 Reviewed-by
• STALE144d REVIEWED: 2 (1M) [PATCH v2 2/3] dt-bindings: serial: amlogic,meson-uart: Add compatible string for A9
  2026-02-28 · Xianwei Zhao via B4 Relay <devnull+xianwei.zhao.amlogic.com@kernel.org> · 1 Reviewed-by, 1 Acked-by
• DORMANTno replies REVIEWED: 2 (1M) [PATCH] dt-bindings: serial: amlogic,meson-uart: Add compatible string for A9
  2026-03-03 · Xianwei Zhao via B4 Relay <devnull+xianwei.zhao.amlogic.com@kernel.org> · 1 Reviewed-by, 1 Acked-by
• STALE137d REVIEWED: 1 (0M) [PATCH v2 RESEND] dt-bindings: serial: snps-dw-apb-uart: Add RV1103B compatible
  2026-03-10 · Fabio Estevam <festevam@gmail.com> · 1 Acked-by
• STALE96d REVIEWED: 1 (1M) [PATCH v2 1/2] dt-bindings: serial: update bindings of ultrarisc dp1000 uart
  2026-03-16 · Jia Wang via B4 Relay <devnull+wangjia.ultrarisc.com@kernel.org> · 1 Reviewed-by
• COLD43d REVIEWED: 8 (7M) [PATCH v6 4/9] dt-bindings: serial: Document the graph port
  2026-03-17 · Manivannan Sadhasivam via B4 Relay <devnull+manivannan.sadhasivam.oss.qualcomm.com@kernel.org> · 2 Reviewed-by
• COLD43d REVIEWED: 1 (0M) [PATCH v6 3/9] serdev: Do not return -ENODEV from of_serdev_register_devices() if external connector is used
  2026-03-17 · Manivannan Sadhasivam via B4 Relay <devnull+manivannan.sadhasivam.oss.qualcomm.com@kernel.org> · 1 Reviewed-by

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• STALE183d [PATCH v3 09/14] dt-bindings: serial: Document the graph port
  2026-01-10 · Manivannan Sadhasivam via B4 Relay <devnull+manivannan.sadhasivam.oss.qualcomm.com@kernel.org>
• STALE183d [PATCH v3 08/14] serdev: Add support for swnode based driver matching and uevent/modalias
  2026-01-10 · Manivannan Sadhasivam via B4 Relay <devnull+manivannan.sadhasivam.oss.qualcomm.com@kernel.org>
• STALE67d [PATCH 03/13] serial: linflexuart: Check FIFO full before writing
  2026-02-16 · Larisa Grigore <hidden>
• STALE67d [PATCH 04/13] serial: linflexuart: Correctly clear UARTSR in buffer mode
  2026-02-16 · Larisa Grigore <hidden>
• STALE67d [PATCH 05/13] serial: linflexuart: Update RXEN/TXEN outside INITM mode
  2026-02-16 · Larisa Grigore <hidden>
• STALE67d [PATCH 06/13] serial: linflexuart: Ensure FIFO is empty when entering INITM
  2026-02-16 · Larisa Grigore <hidden>
• STALE67d [PATCH 07/13] serial: linflexuart: Revert earlycon workaround
  2026-02-16 · Larisa Grigore <hidden>
• STALE67d [PATCH 11/13] serial: linflexuart: Add support for configurable stop bits
  2026-02-16 · Larisa Grigore <hidden>
• DORMANTno replies [PATCH] drivers/tty/serial: move ESP32 UART drivers into staging
  2026-03-08 · Julian Braha <hidden>
• DORMANTno replies [PATCH v2] serial: remove drivers for espressif esp32
  2026-03-09 · Julian Braha <hidden>