Changes in Kconfig

b586d69177b5fc92450a5f37a3bb1ce50aa87e39 - Merge tag 'v7.1-rc6' into tty-next

Mon, 01 Jun 2026 18:08:02 +0200

Merge tag 'v7.1-rc6' into tty-nextWe need the tty/serial fixes in here as well.Signed-off-by: Greg Kroah-Hartman List of files: /linux/drivers/tty/serial/Kconfig

e4240d8845445d58b4b96f7066adfe175a61bd0c - serial: dz: Enable modular build

Thu, 07 May 2026 00:42:56 +0200

serial: dz: Enable modular buildEnable modular build since the driver now has a proper module_exit()handler. There's nothing specific to DZ hardware to prevent driverunloading and reloading from working.Signed-off-by: Maciej W. Rozycki Link: https://patch.msgid.link/alpine.DEB.2.21.2605062331420.46195@angie.orcam.me.ukSigned-off-by: Greg Kroah-Hartman List of files: /linux/drivers/tty/serial/Kconfig

f18643843bc622e24dd6c3c704273c1f411b1b7a - serial: max310x: fix compile errors if CONFIG_SPI_MASTER is disabled

Thu, 21 May 2026 17:33:29 +0200

serial: max310x: fix compile errors if CONFIG_SPI_MASTER is disabledSince commit 20ffe4b3330a8 ("serial: max310x: allow driver to be built withSPI or I2C"), if I2C is enabled and SPI_MASTER is disabled, we have thesecompile errors: drivers/tty/serial/max310x.c: In function 'max310x_uart_init': drivers/tty/serial/max310x.c: error: 'max310x_spi_driver' undeclared... drivers/tty/serial/max310x.c: In function ‘max310x_uart_init’: drivers/tty/serial/max310x.c: error: label ‘err_spi_register’ defined but not used... drivers/tty/serial/max310x.c: error: ‘regcfg’ defined but not usedFix by properly encapsulating i2c/spi code/variables in their respectivecontext with IS_ENABLED() macros for CONFIG_I2C and CONFIG_SPI_MASTER.Also fix link failure with SERIAL_MAX310X=y and I2C=m by modifying Kconfigdepends.Fixes: 20ffe4b3330a8 ("serial: max310x: allow driver to be built with SPI or I2C")Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202605121847.N9DVLNg2-lkp@intel.com/Signed-off-by: Hugo Villeneuve Link: https://patch.msgid.link/20260521153333.2336642-1-hugo@hugovil.comSigned-off-by: Greg Kroah-Hartman List of files: /linux/drivers/tty/serial/Kconfig

20ffe4b3330a8bde9e933e9ba2323d5e9386caa5 - serial: max310x: allow driver to be built with SPI or I2C

Fri, 17 Apr 2026 16:53:35 +0200

serial: max310x: allow driver to be built with SPI or I2CIf SPI is disabled, the max310x driver cannot be selected. Allow driver tobe selected if either I2C or SPI is set.Signed-off-by: Hugo Villeneuve Link: https://patch.msgid.link/20260417-max310x-2-v1-8-b424e105ecac@dimonoff.comSigned-off-by: Greg Kroah-Hartman List of files: /linux/drivers/tty/serial/Kconfig

a2083fd1fa7aa0ef5cd8fd92396da0de2d0654b0 - serial: qcom: Unify user-visible "Qualcomm" name

Mon, 27 Apr 2026 09:00:53 +0200

serial: qcom: Unify user-visible "Qualcomm" nameVarious names for Qualcomm as a company are used in user-visible configoptions: QCOM, Qualcomm and Qualcomm Technologies. Switch to unified"Qualcomm" so it will be easier for users to identify the options whenfor example running menuconfig.Signed-off-by: Krzysztof Kozlowski Link: https://patch.msgid.link/20260427070052.18097-2-krzysztof.kozlowski@oss.qualcomm.comSigned-off-by: Greg Kroah-Hartman List of files: /linux/drivers/tty/serial/Kconfig

37b4cab642f285176ed392e2f5a467a531424f90 - serial: pic32_uart: allow driver to be compiled on all architectures with COMPILE_TEST

Mon, 23 Feb 2026 00:29:08 +0100

serial: pic32_uart: allow driver to be compiled on all architectures with COMPILE_TESTThis driver currently only supports builds against a PIC32 target, orwith COMPILE_TEST on MIPS. Now that commit 24cad1a22848 ("serial:pic32_uart: update include to use pic32.h from platform_data") ismerged, it's possible to compile this driver on other architectures.To avoid future breakage of this driver in the future, let's update theKconfig so that it can be built with COMPILE_TEST enabled on allarchitectures.Signed-off-by: Brian Masney Link: https://patch.msgid.link/20260222-serial-pic32-v1-1-8fdbc0d0d334@redhat.comSigned-off-by: Greg Kroah-Hartman List of files: /linux/drivers/tty/serial/Kconfig

dcb822503bfc77fe93e8ca15c82077ee590dd7b9 - serial: tegra: remove Kconfig dependency on APB DMA controller

Tue, 03 Mar 2026 12:14:38 +0100

serial: tegra: remove Kconfig dependency on APB DMA controllerThis driver runs also on SoCs without a Tegra20 APB DMA controller (e.g.Tegra234).Remove the Kconfig dependency on TEGRA20_APB_DMA, and remove reference tothe APB DMA controller from the Kconfig help text.Signed-off-by: Francesco Lavra Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/20260303111438.2691799-1-flavra@baylibre.comSigned-off-by: Greg Kroah-Hartman List of files: /linux/drivers/tty/serial/Kconfig

2dccde6f5f2ff2726236fd69a1be813629c5512f - serial: remove drivers for espressif esp32

Mon, 09 Mar 2026 13:23:21 +0100

serial: remove drivers for espressif esp32These drivers were added about 3 years ago, and depend on theXTENSA_PLATFORM_ESP32 config option which has never existed,so no device can actually use them.They can only be compiled with COMPILE_TEST.In a previous conversation [1], Greg suggested removing thedrivers, and Max, the original submitter of the drivers, agreeddue to a lack of foreseeable development.Link: https://lore.kernel.org/all/20260308131412.1102749-1-julianbraha@gmail.com/ [1]Signed-off-by: Julian Braha Link: https://patch.msgid.link/20260309122321.1528622-1-julianbraha@gmail.comSigned-off-by: Greg Kroah-Hartman List of files: /linux/drivers/tty/serial/Kconfig

93bb95a11238d66a4c9aa6eabf9774b073a5895c - serial: SH_SCI: improve "DMA support" prompt

Sun, 11 Jan 2026 00:26:43 +0100

serial: SH_SCI: improve "DMA support" promptHaving a prompt of "DMA support" suddenly appear during a"make oldconfig" can be confusing. Add a little helpful text tothe prompt message.Fixes: 73a19e4c0301 ("serial: sh-sci: Add DMA support.")Signed-off-by: Randy Dunlap Reviewed-by: Geert Uytterhoeven Link: https://patch.msgid.link/20260110232643.3533351-5-rdunlap@infradead.orgSigned-off-by: Greg Kroah-Hartman List of files: /linux/drivers/tty/serial/Kconfig

2c468edb6b19ad00c247fc52dc6074e4012b46ed - serial: Kconfig: fix ordering of entries for menu display

Sun, 11 Jan 2026 00:26:42 +0100

serial: Kconfig: fix ordering of entries for menu displayImprove the "Non-8250 serial port support" menu so that entries in itare displayed in a better order (_CONSOLE after its driver) and so thatintervening symbols don't break up the dependency list, allowing menuentries to be displayed with proper indentation.Signed-off-by: Randy Dunlap Link: https://patch.msgid.link/20260110232643.3533351-4-rdunlap@infradead.orgSigned-off-by: Greg Kroah-Hartman List of files: /linux/drivers/tty/serial/Kconfig

79527d86ba91c2d9354832d19fd12b3baa66bd10 - serial: imx: change SERIAL_IMX_CONSOLE to bool

Sun, 11 Jan 2026 00:26:40 +0100

serial: imx: change SERIAL_IMX_CONSOLE to boolSERIAL_IMX_CONSOLE is a build option for the imx driver (SERIAL_IMX).It does not build a separate console driver file, so it can't be builtas a module since it isn't built at all.Change the Kconfig symbol from tristate to bool and update the helptext accordingly.Fixes: 0db4f9b91c86 ("tty: serial: imx: enable imx serial console port as module")Signed-off-by: Randy Dunlap Link: https://patch.msgid.link/20260110232643.3533351-2-rdunlap@infradead.orgSigned-off-by: Greg Kroah-Hartman List of files: /linux/drivers/tty/serial/Kconfig

555d7b3de0057f0cf658f034ab9ee43dd35870f7 - serial: sc16is7xx: Kconfig: allow building with COMPILE_TEST

Mon, 27 Oct 2025 15:29:52 +0100

serial: sc16is7xx: Kconfig: allow building with COMPILE_TESTAdd COMPILE_TEST as an option to allow test building the driver.Suggested-by: Geert Uytterhoeven Link: https://lore.kernel.org/all/20240604083159.d984dd08741396ea4ca46418@hugovil.com/rawSigned-off-by: Hugo Villeneuve Link: https://patch.msgid.link/20251027142957.1032073-11-hugo@hugovil.comSigned-off-by: Greg Kroah-Hartman List of files: /linux/drivers/tty/serial/Kconfig

5d2f4730bb7550d64c87785f1035d0e641dbc979 - Merge tag 'tty-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Sun, 05 Oct 2025 00:57:44 +0200

Merge tag 'tty-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/ttyPull tty/serial updates from Greg KH: "Here are some small updates for tty/serial drivers for 6.18-rc1. Not many changes overall, just the usual: - abi cleanups and reworking of the tty functions by Jiri by adding console lock guard logic - 8250_platform driver updates - qcom-geni driver updates - other minor serial driver updates - some more vt escape codes added All of these have been in linux-next for a while with no reported issues"* tag 'tty-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (43 commits) tty: serial: fix help message for SERIAL_CPM serial: 8250: omap: Support wakeup pinctrl state on suspend dt-bindings: serial: 8250_omap: Add wakeup pinctrl state serial: max310x: improve interrupt handling vt: move vc_saved_screen to within tty allocated judgment Revert "m68k: make HPDCA and HPAPCI bools" tty: remove redundant condition checks tty/vt: Add missing return value for VT_RESIZE in vt_ioctl() vt: remove redundant check on vc_mode in con_font_set() serial: qcom-geni: Add DFS clock mode support to GENI UART driver m68k: make HPDCA and HPAPCI bools tty: n_gsm: Don't block input queue by waiting MSC serial: qcom-geni: Fix off-by-one error in ida_alloc_range() serdev: Drop dev_pm_domain_detach() call serial: sc16is7xx: drop redundant conversion to bool vt: add support for smput/rmput escape codes serial: stm32: allow selecting console when the driver is module serial: 8250_core: fix coding style issue tty: serial: Modify the use of dev_err_probe() s390/char/con3270: use tty_port_tty guard() ... List of files: /linux/drivers/tty/serial/Kconfig

f4abab350840d58d69814c6993736f03ac27df83 - tty: serial: fix help message for SERIAL_CPM

Tue, 16 Sep 2025 17:57:17 +0200

tty: serial: fix help message for SERIAL_CPMRunning checkpatch reported error extra whitespace at theend of help message for SERIAL_CPM menu entrySigned-off-by: Arturs Artamonovs Signed-off-by: Greg Kroah-Hartman List of files: /linux/drivers/tty/serial/Kconfig

9fc0a7e0ee896b1b4e66b1ffe38efe2f4af20891 - tty: serial: atmel: make it selectable for ARCH_MICROCHIP

Wed, 13 Aug 2025 19:44:41 +0200

tty: serial: atmel: make it selectable for ARCH_MICROCHIPLAN969x uses the Atmel USART serial, so make it selectable forARCH_MICROCHIP to avoid needing to update depends in future if otherMicrochip SoC-s use it as well.Signed-off-by: Robert Marko Acked-by: Greg Kroah-Hartman Acked-by: Daniel Machon Signed-off-by: Nicolas Ferre List of files: /linux/drivers/tty/serial/Kconfig

cc4d900d0d6d8dd5c41832a93ff3cfa629a78f9a - serial: stm32: allow selecting console when the driver is module

Fri, 22 Aug 2025 16:19:23 +0200

serial: stm32: allow selecting console when the driver is moduleConsole can be enabled on the UART compile as module.Change dependency to allow console mode when the driver is built as module.Fixes: 48a6092fb41fa ("serial: stm32-usart: Add STM32 USART Driver")Cc: stable@vger.kernel.orgSigned-off-by: Raphael Gallais-Pou Link: https://lore.kernel.org/r/20250822141923.61133-1-raphael.gallais-pou@foss.st.comSigned-off-by: Greg Kroah-Hartman List of files: /linux/drivers/tty/serial/Kconfig

9391ab1ed9b3fe0d1af7d7858d9bf42f476628c8 - serial: qcom-geni: Make UART port count configurable via Kconfig

Tue, 12 Aug 2025 07:48:19 +0200

serial: qcom-geni: Make UART port count configurable via KconfigReplace the hardcoded GENI_UART_PORTS macro with a new Kconfig optionSERIAL_QCOM_GENI_UART_PORTS to allow platforms to configure the maximumnumber of UART ports supported by the driver at build time.This improves flexibility for platforms that require more than thepreviously fixed number of UART ports, and avoids unnecessary allocationfor unused ports.Signed-off-by: Zong Jiang Link: https://lore.kernel.org/r/20250812054819.3748649-3-quic_zongjian@quicinc.comSigned-off-by: Greg Kroah-Hartman List of files: /linux/drivers/tty/serial/Kconfig

0666e3fe95ab55c295984f2f51277ec27d3f190c - serial: sh-sci: Add support for RZ/T2H SCI

Mon, 30 Jun 2025 22:23:23 +0200

serial: sh-sci: Add support for RZ/T2H SCIDefine a new RSCI port type, and the RSCI 32 bits registers set.The RZ/T2H SCI has a a fifo, and a quite different set of registersfrom the original SH SCI ones.DMA is not supported yet.Signed-off-by: Thierry Bultel Signed-off-by: Lad Prabhakar Reviewed-by: Wolfram Sang Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20250630202323.279809-6-prabhakar.mahadev-lad.rj@bp.renesas.comSigned-off-by: Greg Kroah-Hartman List of files: /linux/drivers/tty/serial/Kconfig

eb07e3a946796b682b12897e080d856bc6d63c3d - serial: tegra-utc: Add driver for Tegra UART Trace Controller (UTC)

Thu, 13 Feb 2025 13:56:12 +0100

serial: tegra-utc: Add driver for Tegra UART Trace Controller (UTC)The Tegra264 SoC supports the UART Trace Controller (UTC), which allowsmultiple firmware clients (up to 16) to share a single physical UART.Each client is provided with its own interrupt and has access to a128-character wide FIFO for both transmit (TX) and receive (RX)operations.Add tegra-utc driver to support Tegra UART Trace Controller (UTC)client.Signed-off-by: Kartik Rajput Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20250213125612.4705-3-kkartik@nvidia.comSigned-off-by: Greg Kroah-Hartman List of files: /linux/drivers/tty/serial/Kconfig

c08b0f2c317223fa702616dfa77f10a92b7b34b2 - Revert "tty/serial: Add kgdb_nmi driver"

Wed, 29 Jan 2025 17:25:50 +0100

Revert "tty/serial: Add kgdb_nmi driver"This reverts commit 0c57dfcc6c1d037243c2f8fbf62eab3633326ec0.The functionality was supoosed to be used by a later patch in theseries that never landed [1]. Drop it.NOTE: part of functionality was already reverted by commit39d0be87438a ("serial: kgdb_nmi: Remove unused knock code"). Also notethat this revert is not a clean revert given code changes that havehappened in the meantime.It's obvious that nobody is using this code since the two exposedfunctions (kgdb_register_nmi_console() andkgdb_unregister_nmi_console()) are both no-ops if"arch_kgdb_ops.enable_nmi" is not defined. No architectures define it.[1] https://lore.kernel.org/lkml/1348522080-32629-9-git-send-email-anton.vorontsov@linaro.org/Signed-off-by: Douglas Anderson Acked-by: Andy Shevchenko Link: URL [1]Link: https://lore.kernel.org/r/20250129082535.1.Ia095eac1ae357f87d23e7af2206741f5d40788f1@changeidSigned-off-by: Greg Kroah-Hartman List of files: /linux/drivers/tty/serial/Kconfig