kernel/git/stable/linux.git/Documentation/misc-devices, branch master

docs: misc: amd-sbi: Document SBTSI userspace interface

2026-07-17T13:50:48+00:00

- Document AMD sideband IOCTL description defined for SBTSI and its usage. User space C-APIs are made available by esmi_oob_library [1], which is provided by the E-SMS project [2]. Link: https://github.com/amd/esmi_oob_library [1] Link: https://www.amd.com/en/developer/e-sms.html [2] Include a user-space open example for /dev/sbtsi-* and list auxiliary bus sysfs paths. Reviewed-by: Akshay Gupta Signed-off-by: Prathima Link: https://github.com/amd/esmi_oob_library [1] Link: https://www.amd.com/en/developer/e-sms.html [2] Link: https://patch.msgid.link/20260710111642.850022-9-Akshay.Gupta@amd.com Signed-off-by: Greg Kroah-Hartman

misc: Remove old APDS990x driver

2026-04-27T08:58:24+00:00

The APDS990x driver in misc lacks DeviceTree support, and no mainline pre-DT board files configured this device using apds990x_platform_data. This driver belongs to a legacy group of ambient light sensor drivers in drivers/misc/ that predates the migration to DT and the standard IIO ABI. Since the Avago APDS9900/9901 ALS/Proximity sensor is now supported by the tsl2772 IIO driver and there are no active users in the kernel tree, remove this old implementation. Acked-by: Greg Kroah-Hartman Signed-off-by: Svyatoslav Ryhel Signed-off-by: Jonathan Cameron

Merge tag 'tty-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2026-02-17T17:30:52+00:00

Pull tty / serial driver updates from Greg KH: "Here is the small amount of tty and serial driver updates for 7.0-rc1. Nothing major in here at all, just some driver updates and minor tweaks and cleanups including: - sh-sci serial driver updates - 8250 driver updates - attempt to make the tty ports have their own workqueue, but was reverted after testing found it to have problems on some platforms. This will probably come back for 7.1 after it has been reworked and resubmitted - other tiny tty driver changes All of these have been in linux-next for a while with no reported problems" * tag 'tty-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (49 commits) Revert "tty: tty_port: add workqueue to flip TTY buffer" tty: tty_port: add workqueue to flip TTY buffer serial: 8250_pci: Remove custom deprecated baud setting routine serial: 8250_omap: Remove custom deprecated baud setting routine dt-bindings: serial: renesas,scif: Document RZ/G3L SoC serial: 8250: omap: set out-of-band wakeup if wakeup pinctrl exists tty: hvc-iucv: Remove KMSG_COMPONENT macro dt-bindings: serial: google,goldfish-tty: Convert to DT schema dt-bindings: serial: sh-sci: Fold single-entry compatibles into enum serial: 8250: 8250_omap.c: Clear DMA RX running status only after DMA termination is done serial: 8250: 8250_omap.c: Add support for handling UART error conditions serial: SH_SCI: improve "DMA support" prompt serial: Kconfig: fix ordering of entries for menu display serial: 8250: fix ordering of entries for menu display serial: imx: change SERIAL_IMX_CONSOLE to bool 8250_men_mcb: drop unneeded MODULE_ALIAS serial: men_z135_uart: drop unneeded MODULE_ALIAS dt-bindings: serial: renesas,rsci: Document RZ/V2H(P) and RZ/V2N SoCs serial: rsci: Convert to FIELD_MODIFY() dt-bindings: serial: 8250: add SpacemiT K3 UART compatible ...

serial: 8250_pci: Remove custom deprecated baud setting routine

2026-01-23T16:24:55+00:00

As comments mentioned this is old (and actually deprecated) interface to set custom baud rates. This interface has limitations as it only allows to set a single opaque value called "custom_divisor". If the HW needs more complex settings (like fractional divisor) it must somehow encode this. This is horrid interface that is very driver specific and not flexible. Meanwhile Linux has established way to set free baud rate settings via BOTHER [1]. With all this being said, remove deprecated interface for good. Link: https://stackoverflow.com/questions/12646324/how-can-i-set-a-custom-baud-rate-on-linux [1] Signed-off-by: Andy Shevchenko Link: https://patch.msgid.link/20260122102349.2395423-3-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman

docs: fix PPR for AMD EPYC broken link

2026-01-05T14:33:10+00:00

As 'AMD Documentation Hub' [1] announced: "All technical documentation, including for AMD EPYC™ processors ..., and more is now hosted on the AMD Technical Information Portal (TIP) [2]". By searching the No.55898, update the new URL. [1] https://www.amd.com/en/search/documentation/hub.html [2] https://docs.amd.com/ Signed-off-by: Haiyue Wang Acked-by: Bagas Sanjaya Link: https://patch.msgid.link/20251230133101.14362-1-haiyuewa@163.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

Documentation: tps6594-pfsm: Fix macro cross-reference syntax

2025-11-10T19:54:49+00:00

C macro references are erroneously written using :c:macro:: (note the double colon). This causes the references to be outputted as combination of verbatim roles and italicized names instead. Correct the syntax. Fixes: dce548889650c1 ("Documentation: Add TI TPS6594 PFSM") Signed-off-by: Bagas Sanjaya Reviewed-by: Randy Dunlap Tested-by: Randy Dunlap Signed-off-by: Jonathan Corbet Message-ID: <20251104041812.31402-4-bagasdotme@gmail.com>

Documentation: mrvl-cn10k-dpi: Fix macro cross-reference syntax

2025-11-10T19:54:49+00:00

C macro references are erroneously written using :c:macro:: (note the double colon). This causes the references to be outputted as combination of verbatim roles and italicized names instead. Correct the syntax. Fixes: 5f67eef6dff394 ("misc: mrvl-cn10k-dpi: add Octeon CN10K DPI administrative driver") Signed-off-by: Bagas Sanjaya Reviewed-by: Randy Dunlap Tested-by: Randy Dunlap Signed-off-by: Jonathan Corbet Message-ID: <20251104041812.31402-3-bagasdotme@gmail.com>

Documentation: amd-sbi: Wrap miscdevice listing snippet in literal code block

2025-11-10T19:54:49+00:00

Device file listing (ls output) is shown as long-running paragraph instead. Wrap it in literal code block. Fixes: 4d95514d14e874 ("misc: amd-sbi: Add document for AMD SB IOCTL description") Signed-off-by: Bagas Sanjaya Reviewed-by: Randy Dunlap Tested-by: Randy Dunlap Signed-off-by: Jonathan Corbet Message-ID: <20251104041812.31402-2-bagasdotme@gmail.com>

Documentation: uacce: Add explicit title

2025-11-05T18:31:05+00:00

Uacce docs' sections are listed in misc-devices toctree instead due to lack of explicit docs title. Add it to clean up the toctree. Reviewed-by: Randy Dunlap Tested-by: Randy Dunlap Signed-off-by: Bagas Sanjaya Signed-off-by: Jonathan Corbet Message-ID: <20251103093817.52764-2-bagasdotme@gmail.com>

misc: amd-sbi: Add document for AMD SB IOCTL description

2025-05-21T12:44:41+00:00

- This document provides AMD side band IOCTL description defined for APML and its usage. Multiple AMD custom protocols defined for side band system management uses this IOCTL. User space C-APIs are made available by esmi_oob_library [1], which is provided by the E-SMS project [2]. Link: https://github.com/amd/esmi_oob_library [1] Link: https://www.amd.com/en/developer/e-sms.html [2] Reviewed-by: Naveen Krishna Chatradhi Signed-off-by: Akshay Gupta Link: https://lore.kernel.org/r/20250428063034.2145566-11-akshay.gupta@amd.com Signed-off-by: Greg Kroah-Hartman