linux/Documentation/devicetree/bindings/serial, branch master

Merge tag 'tty-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2026-04-19T15:44:41Z

Pull tty/serial updates from Greg KH: "Here is the set of tty and serial driver changes for 7.1-rc1. Not much here this cycle, biggest thing is the removal of an old driver that never got any actual hardware support (esp32), and the second try to moving the tty ports to their own workqueues (first try was in 7.0-rc1 but was reverted due to problems) Otherwise it's just a small set of driver updates and some vt modifier key enhancements. All have been in linux-next for a while with no reported issues" * tag 'tty-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (35 commits) tty: serial: ip22zilog: Fix section mispatch warning hvc/xen: Check console connection flag serial: sh-sci: Add support for RZ/G3L RSCI dt-bindings: serial: renesas,rsci: Document RZ/G3L SoC tty: atmel_serial: update outdated reference to atmel_tasklet_func() serial: xilinx_uartps: Drop unused include serial: qcom-geni: drop stray newline format specifier serial: 8250: loongson: Enable building on MIPS Loongson64 dt-bindings: serial: 8250: Add Loongson 3A4000 uart compatible serial: 8250_fintek: Add support for F81214E tty: tty_port: add workqueue to flip TTY buffer vt: support ITU-T T.416 color subparameters serial: qcom-geni: Fix RTS behavior with flow control tty: serial: imx: keep dma request disabled before dma transfer setup tty: serial: 8250: Add SystemBase Multi I/O cards serial: pic32_uart: allow driver to be compiled on all architectures with COMPILE_TEST serial: tegra: remove Kconfig dependency on APB DMA controller dt-bindings: serial: amlogic,meson-uart: Add compatible string for A9 dt-bindings: serial: atmel,at91-usart: add microchip,lan9691-usart serial: auart: check clk_enable() return in console write ...

Merge tag 'soc-dt-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2026-04-17T03:28:48Z

Pull SoC devicetree updates from Arnd Bergmann: "A number of SoC platforms are adding modernized variants of their already supported chips time, with a total of 12 new SoCs, and two older SoC getting removed: - Qualcomm Glymur is a compute SoC using 18 Oryon-2 CPU cores - Qualcomm Mahua is a variant of Glymur with only 12 CPU cores, but largely identical. - Qualcomm Eliza is an embeded platform for mobile phone (SM7750) and IOT (QC7790S/M) workloads - Qualcomm IPQ5210 is a wireless networking SoC using Cortex-A53 cores - Qualcomm apq8084 and ipq806x had only rudimentary support but no actual products using them, so they are now gone. - Axis ARTPEC-9 is a follow-up to the ARTPEC-8 embedded SoC, using the Samsung SoC platform but now with Cortex-A55 cores - ARM Zena is a virtual platform in FVP using Cortex-A720AE cores, with additional versions planned to be merged in the future. - ARM corstone-1000-a320 is a reference platform for IOT, using low-end Cortex-A320 cores - Microchip LAN9691 is an updated 64-bit variant of the arm32 lan966x series of networking SoCs - Microchip PIC64GX is an embedded RISC-V chip using SIFIVE U54 CPU cores - Rockchip RV1103B is the low-end 32-bit single-core vision processor - Renesas RZ/G3L (r9a08g046) is an industrial embedded chip using Cortex-A55 cores, similar to the G3E and G3S variants we already supported. - NXP S32N79 is an automotive SoC using Cortex-A78AE cores, a significant upgrade from the older S32V and S32G series These all come with at least one reference board or an initial product using these, in total there are 67 newly added boards. The ones for already supported SoCs are: - Two more Aspeed BMC based boards - Three older tablets based on 32-bit OMAP4 and Exynos5 SoCs - One Set-top-box based on Allwinner H6 - 22 additional industrial/embedded boards using 64-bit NXP i.MX8M or i.MX9 SoCs - 20 Qualcomm SoC based machines across all possible markets: workstation, gaming, laptop, phone, networking, reference, ... - Three more Rockchips rk35xx based boards - Four variants of the Toradex Verdin using TI AM62 Other notable bits are: - A cleanup for the 32-bit Tegra paz00 board moved the last board specific code on Tegra into equivalent dts syntax. - There continues to be a significant number of fixes for static checking of dtc syntax, but it feels like this is slowing down, hopefully getting into a state where most known issues are addressed - Additional hardware support for many existing boards across SoC families, notably Qualcomm, Broadcom, i.MX2, i.MX6, Rockchips, STM32, Mediatek, Tegra, TI and Microchip" * tag 'soc-dt-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (841 commits) arm64: dts: ti: k3: Use memory-region-names for r5f ARM: dts: imx: Add DT overlays for DH i.MX6 DHCOM SoM and boards ARM: dts: imx6sx: remove fallback compatible string fsl,imx28-lcdif ARM: dts: imx25: rename node name tcq to touchscreen ARM: dts: imx: b850v3: Disable unused usdhc4 ARM: dts: imx: b850v3: Define GPIO line names ARM: dts: imx: b850v3: Use alphabetical sorting ARM: dts: imx: bx50v3: Configure phy-mode to eliminate a warning ARM: dts: imx: bx50v3: Configure switch PHY max-speed to 100Mbps ARM: dts: imx7ulp: Add CPU clock and OPP table support ARM: dts: imx7-mba7: Deassert BOOT_EN after boot ARM: dts: tqma7: add boot phase properties ARM: dts: imx7s: add boot phase properties ARM: dts: tqma6ul[l]: correct spelling of TQ-Systems ARM: dts: mba6ulx: add boot phase properties ARM: dts: imx6ul[l]-tqma6ul[l]: add boot phase properties ARM: dts: imx6ul/imx6ull: add boot phase properties ARM: dts: imx6qdl-mba6: add boot phase properties ARM: dts: imx6qdl-tqma6: add boot phase properties ARM: dts: imx6qdl: add boot phase properties ...

dt-bindings: serial: Document the graph port

2026-03-31T07:48:43Z

A serial controller could be connected to an external connector like PCIe M.2 for controlling the serial interface of the card. Hence, document the OF graph port. Reviewed-by: Rob Herring (Arm) Reviewed-by: Bartosz Golaszewski Signed-off-by: Manivannan Sadhasivam Link: https://patch.msgid.link/20260326-pci-m2-e-v7-4-43324a7866e6@oss.qualcomm.com Signed-off-by: Bartosz Golaszewski

dt-bindings: serial: renesas,rsci: Document RZ/G3L SoC

2026-03-30T15:36:58Z

Document the serial communication interface (RSCI) used on the Renesas RZ/G3L (R9A08G046) SoC. This SoC integrates the same RSCI IP block as the RZ/G3E (R9A09G047), but it has 3 clocks compared to 6 clocks on the RZ/G3E SoC. The RZ/G3L has a single TCLK with internal dividers, whereas the RZ/G3E has explicit clocks for TCLK and its dividers. Signed-off-by: Biju Das Reviewed-by: Geert Uytterhoeven Reviewed-by: Rob Herring (Arm) Link: https://patch.msgid.link/20260312082708.98835-2-biju.das.jz@bp.renesas.com Signed-off-by: Greg Kroah-Hartman

dt-bindings: serial: 8250: Add Loongson 3A4000 uart compatible

2026-03-30T15:36:20Z

The UART controller on Loongson 3A4000 is compatible with Loongson 2K1500, which is NS16550A-compatible with an additional fractional frequency divisor register. Add loongson,ls3a4000-uart as compatible with loongson,ls2k1500-uart. Acked-by: Krzysztof Kozlowski Signed-off-by: Rong Zhang Reviewed-by: Jiaxun Yang Link: https://patch.msgid.link/20260315184301.412844-2-rongrong@oss.cipunited.com Signed-off-by: Greg Kroah-Hartman

dt-bindings: serial: 8250: spacemit: fix clock property for K3 SoC

2026-03-13T11:14:42Z

The UART of SpacemiT K3 SoC has same clock property as K1 generation which request two clock sources, fix the binding otherwise will get DT check warnings. Acked-by: Greg Kroah-Hartman Acked-by: Rob Herring (Arm) Link: https://lore.kernel.org/r/20260304-01-uart-clock-names-v1-1-338483f04a8b@kernel.org Signed-off-by: Yixun Lan

dt-bindings: serial: amlogic,meson-uart: Add compatible string for A9

2026-03-12T14:24:42Z

Amlogic A9 SoCs uses the same UART controller as S4 SoCs. There is no need for an extra compatible line in the driver, but add A9 compatible line for documentation. Reviewed-by: Martin Blumenstingl Acked-by: Krzysztof Kozlowski Signed-off-by: Xianwei Zhao Link: https://patch.msgid.link/20260303-serial-binding-v1-1-c3df2a8f6fa3@amlogic.com Signed-off-by: Greg Kroah-Hartman

dt-bindings: serial: atmel,at91-usart: add microchip,lan9691-usart

2026-03-12T14:24:35Z

Document Microchip LAN969x USART compatible. Signed-off-by: Robert Marko Acked-by: Conor Dooley Reviewed-by: Claudiu Beznea Link: https://patch.msgid.link/20260302112153.464422-2-robert.marko@sartura.hr Signed-off-by: Greg Kroah-Hartman

dt-bindings: serial: snps-dw-apb-uart: Add RV1103B compatible

2026-03-12T14:06:21Z

The RV1103B UART is compatible with the existing DesignWare APB UART binding. Add the rockchip,rv1103b-uart compatible string. Signed-off-by: Fabio Estevam Acked-by: Krzysztof Kozlowski Reviewed-by: Heiko Stuebner Link: https://patch.msgid.link/20260310000606.415206-1-festevam@gmail.com Signed-off-by: Greg Kroah-Hartman

dt-bindings: serial: renesas,scif: Document RZ/G3L SoC

2026-01-23T16:24:51Z

Add SCIF binding documentation for Renesas RZ/G3L SoC. SCIF block on the RZ/G3L is identical to one found on the RZ/G3S SoC. Signed-off-by: Biju Das Acked-by: Conor Dooley Reviewed-by: Fabrizio Castro Link: https://patch.msgid.link/20260120125232.349708-2-biju.das.jz@bp.renesas.com Signed-off-by: Greg Kroah-Hartman