Linux kernel source tree
Find a file
Linus Torvalds 5fb0249319 Pin control changes for the v6.18 kernel cycle:
Core changes:
 
 - Allow pins to be identified/marked as GPIO mode with
   a special callback. The pin controller core is now
   "aware" if a pin is in GPIO mode if the callback is
   implemented in the driver, and can thus be marked
   as "strict", i.e. disallowing simultaneous use of a
   line as GPIO and another function such as I2C. This
   is enabled in the Qualcomm TLMM driver and also
   implemeted from day 1 in the new Broadcom STB driver.
 
 - Rename the pin config option PIN_CONFIG_OUTPUT to
   PIN_CONFIG_LEVEL to better describe what the config is
   doing, as well as making it more intuitive what shall
   be returned when reading this property.
 
 New drivers:
 
 - Qualcomm SDM660 LPASS LPI TLMM pin controller subdriver.
 
 - Qualcomm Glymur family pin controller driver.
 
 - Broadcom STB family pin controller driver.
 
 - Tegra186 pin controller driver.
 
 - AAEON UP pin controller support. This is some special
   pin controller that works as an external advanced line
   MUX and amplifier for signals from an Intel SoC.
   A cooperative effort with the GPIO maintainer was
   needed to reach a solution where we reuse code from
   the GPIO aggregator/forwarder driver.
 
 - Renesas RZ/T2H and RZ/N2H pin controller support.
 
 - Axis ARTPEC-8 subdriver for the Samsung pin controller
   driver.
 
 Improvements:
 
 - Output enable (OEN) support in the Renesas RZG2L driver.
 
 - Properly support bias pull up/down in the pinctrl-single
   driver.
 
 - Move over all GPIO portions using generic MMIO GPIO to
   the new generic GPIO chip management which has a nice and
   separate API.
 
 - Proper DT bindings for some older Broadcom SoCs.
 
 - External GPIO (EGPIO) support in the Qualcomm SM8250.
 
 Deleted code:
 
 - Dropped the now unused Samsung S3C24xx drivers.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEElDRnuGcz/wPCXQWMQRCzN7AZXXMFAmjcI6IACgkQQRCzN7AZ
 XXMFYxAApJr9Rlqh3WlOzvAa2kVrGev0m3S2I0SiQUAIy2TwfMBGBRjDTOQJ+db/
 ZazjsTyL+ObuCRmWJpoqlRThEB9oh5xgqN5OHCSIBQXqnjCzG9jnw+s50dGl5r77
 vX5RtS5OxPgqe2ay9DY9SA8Ix0G5Yxdq9eP2MfeX45zjAfGWGq6bJT+Llkpf5y8L
 a1k1EQmQbogw6DLLmpiSUA2qtFitGdB9rLkk/inYWZHq6g8qva4eoVdE+PhzG1ky
 DrkXaJF3+hC/fBBGk4yrzHfnLL7pqIzyhN3on5Xy9lMfytU8bxGESZck1BxaauHZ
 63w8kEfGOsOztbKQ9VLAzDg9Jd+t7fVMmQw5kXT53TEhB0hfX0SbiK2I8UAF3vkV
 dCe6AWD2Zzz5XlDJpl5vOOYr9lSmuVCZuaIdvgoyLk4BJSLau+24Rme9gqfulT92
 /z2mxCHO6CIzIgH4ILiyM90pIE4OCXp0II7SinZ34alO8ZoMyFHAT2Sqa736WdlQ
 PVfBRBIIJF02os3bcudXpwCD7Xn0ksE5UwVgdDSIk9MKdRI5ZGdbt0y9HUrnfTDk
 5hFH3rbm8Vdk65UHcgIiYTN9C9JlbPscNyQG0z4a1OUr2O4wurr0eFBn+kFpluRn
 ZQBQwjxtEqedsunb5W5Ny79srN6okddpzCIUSQDL20Uw69zy9L0=
 =DZy/
 -----END PGP SIGNATURE-----

Merge tag 'pinctrl-v6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "We have GPIO awareness in the pin control core and an interesting
  AAEON driver.

  Core changes:

   - Allow pins to be identified/marked as GPIO mode with a special
     callback.

     The pin controller core is now "aware" if a pin is in GPIO mode if
     the callback is implemented in the driver, and can thus be marked
     as "strict", i.e. disallowing simultaneous use of a line as GPIO
     and another function such as I2C.

     This is enabled in the Qualcomm TLMM driver and also implemeted
     from day 1 in the new Broadcom STB driver

   - Rename the pin config option PIN_CONFIG_OUTPUT to PIN_CONFIG_LEVEL
     to better describe what the config is doing, as well as making it
     more intuitive what shall be returned when reading this property

  New drivers:

   - Qualcomm SDM660 LPASS LPI TLMM pin controller subdriver

   - Qualcomm Glymur family pin controller driver

   - Broadcom STB family pin controller driver

   - Tegra186 pin controller driver

   - AAEON UP pin controller support.

     This is some special pin controller that works as an external
     advanced line MUX and amplifier for signals from an Intel SoC. A
     cooperative effort with the GPIO maintainer was needed to reach a
     solution where we reuse code from the GPIO aggregator/forwarder
     driver

   - Renesas RZ/T2H and RZ/N2H pin controller support

   - Axis ARTPEC-8 subdriver for the Samsung pin controller driver

  Improvements:

   - Output enable (OEN) support in the Renesas RZG2L driver

   - Properly support bias pull up/down in the pinctrl-single driver

   - Move over all GPIO portions using generic MMIO GPIO to the new
     generic GPIO chip management which has a nice and separate API

   - Proper DT bindings for some older Broadcom SoCs

   - External GPIO (EGPIO) support in the Qualcomm SM8250

  Deleted code:

   - Dropped the now unused Samsung S3C24xx drivers"

* tag 'pinctrl-v6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (75 commits)
  pinctrl: use more common syntax for compound literals
  pinctrl: Simplify printks with pOF format
  pinctrl: qcom: Add SDM660 LPASS LPI TLMM
  dt-bindings: pinctrl: qcom: Add SDM660 LPI pinctrl
  pinctrl: qcom: lpass-lpi: Add ability to use custom pin offsets
  pinctrl: qcom: Add glymur pinctrl driver
  dt-bindings: pinctrl: qcom: Add Glymur pinctrl
  pinctrl: qcom: sm8250: Add egpio support
  pinctrl: generic: rename PIN_CONFIG_OUTPUT to LEVEL
  pinctrl: keembay: fix double free in keembay_build_functions()
  pinctrl: spacemit: fix typo in PRI_TDI pin name
  pinctrl: eswin: Fix regulator error check and Kconfig dependency
  pinctrl: bcm: Add STB family pin controller driver
  dt-bindings: pinctrl: Add support for Broadcom STB pin controller
  pinctrl: qcom: make the pinmuxing strict
  pinctrl: qcom: mark the `gpio` and `egpio` pins function as non-strict functions
  pinctrl: qcom: add infrastructure for marking pin functions as GPIOs
  pinctrl: allow to mark pin functions as requestable GPIOs
  pinctrl: qcom: use generic pin function helpers
  pinctrl: make struct pinfunction a pointer in struct function_desc
  ...
2025-10-01 13:14:48 -07:00
arch bpf-next-6.18 2025-09-30 17:58:11 -07:00
block namespace-6.18-rc1 2025-09-29 11:20:29 -07:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto bpf-next-6.18 2025-09-30 17:58:11 -07:00
Documentation Pin control changes for the v6.18 kernel cycle: 2025-10-01 13:14:48 -07:00
drivers Pin control changes for the v6.18 kernel cycle: 2025-10-01 13:14:48 -07:00
fs Driver core changes for 6.18-rc1 2025-10-01 08:39:23 -07:00
include Pin control changes for the v6.18 kernel cycle: 2025-10-01 13:14:48 -07:00
init Updates for the VDSO subsystem: 2025-09-30 16:58:21 -07:00
io_uring io_uring-6.17-20250919 2025-09-19 12:10:49 -07:00
ipc namespace-6.18-rc1 2025-09-29 11:20:29 -07:00
kernel Driver core changes for 6.18-rc1 2025-10-01 08:39:23 -07:00
lib Updates for the VDSO subsystem: 2025-09-30 16:58:21 -07:00
LICENSES LICENSES: Replace the obsolete address of the FSF in the GFDL-1.2 2025-07-24 11:15:39 +02:00
mm arm64 updates for 6.18 2025-09-29 18:48:39 -07:00
net bpf-next-6.18 2025-09-30 17:58:11 -07:00
rust regulator: Updates for v6.18 2025-10-01 11:43:54 -07:00
samples Driver core changes for 6.18-rc1 2025-10-01 08:39:23 -07:00
scripts Rust changes for v6.18 2025-09-30 19:12:49 -07:00
security lsm/stable-6.18 PR 20250926 2025-09-30 08:48:29 -07:00
sound Pin control changes for the v6.18 kernel cycle: 2025-10-01 13:14:48 -07:00
tools nolibc changes for v6.18 2025-09-30 19:18:17 -07:00
usr usr/include: openrisc: don't HDRTEST bpf_perf_event.h 2025-05-12 15:03:17 +09:00
virt Merge tag 'kvm-x86-no_assignment-6.17' of https://github.com/kvm-x86/linux into HEAD 2025-07-29 08:36:42 -04:00
.clang-format Linux 6.15-rc5 2025-05-06 16:39:25 +10:00
.clippy.toml rust: clean Rust 1.88.0's warning about clippy::disallowed_macros configuration 2025-05-07 00:11:47 +02:00
.cocciconfig
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore MAINTAINERS: remove Alyssa Rosenzweig 2025-09-18 21:17:31 +02:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore gitignore: allow .pylintrc to be tracked 2025-07-02 17:10:04 -06:00
.mailmap 7 hotfixes. 4 are cc:stable and the remainder address post-6.16 issues or 2025-09-28 09:32:00 -07:00
.pylintrc docs: add a .pylintrc file with sys path for docs scripts 2025-04-09 12:10:33 -06:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Delete inactive maintainers from AF_XDP 2025-09-25 13:18:22 +02:00
Kbuild sched: Make migrate_{en,dis}able() inline 2025-09-25 09:57:16 +02:00
Kconfig io_uring: Rename KConfig to Kconfig 2025-02-19 14:53:27 -07:00
MAINTAINERS MFD for v6.18 2025-10-01 12:04:12 -07:00
Makefile hardening updates for v6.18-rc1 2025-09-29 17:48:27 -07:00
README README: Fix spelling 2024-03-18 03:36:32 -06:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.