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Message-ID: <20250929094107.34633-1-brgl@bgdev.pl>
Date: Mon, 29 Sep 2025 11:41:07 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Linus Walleij <linus.walleij@...aro.org>,
linux-gpio@...r.kernel.org,
linux-kernel@...r.kernel.org,
Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [GIT PULL] gpio updates for v6.18-rc1
From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Linus,
Here's the PR containing the GPIO updates for this merge window. There are
two new drivers and support for more models in existing ones.
The generic GPIO API has been reworked and all users converted which
allowed us to move the fields specific to the generic GPIO implementation
out of the high-level struct gpio_chip into its own structure that wraps
the gpio_chip.
Other than that, there's nothing too exciting. Mostly minor tweaks and
fixes all over the place, some refactoring and some small new features
in helper modules. Details are in the signed tag.
The merges you see here are either me pulling in MFD changes with GPIO
drivers that depend on MFD changes or my own immutable branches provided
for other trees.
Thanks,
Bartosz
The following changes since commit 76eeb9b8de9880ca38696b2fb56ac45ac0a25c6c:
Linux 6.17-rc5 (2025-09-07 14:22:57 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux.git tags/gpio-updates-for-v6.18-rc1
for you to fetch changes up to bc061143637532c08d9fc657eec93fdc2588068e:
gpio: mpfs: fix setting gpio direction to output (2025-09-26 11:56:26 +0200)
----------------------------------------------------------------
gpio updates for v6.18-rc1
GPIO core:
- add support for sparse pin ranges to the glue between GPIO and pinctrl
- use a common prefix across all GPIO descriptor flags for improved
namespacing
New drivers:
- add new GPIO driver for the Nuvoton NCT6694
- add new GPIO driver for MAX7360
Driver improvements:
- add support for Tegra 256 to the gpio-tegra186 driver
- add support for Loongson-2K0300 to the gpio-loongson-64bit driver
- refactor the gpio-aggregator module to expose its GPIO forwarder API
to other in-kernel users (to enable merging of a new pinctrl driver
that uses it)
- convert all remaining drivers to using the modernized generic GPIO chip
API and remove the old interface
- stop displaying global GPIO numbers in debugfs output of controller
drivers
- extend the gpio-regmap helper with a new config option and improve its
support for GPIO interrupts
- remove redundant fast_io parameter from regmap configs in GPIO drivers
that already use MMIO regmaps which imply it
- add support for a new model in gpio-mmio: ixp4xx expansion bus
- order includes alphabetically in a few drivers for better readability
- use generic device properties where applicable
- use devm_mutex_init() where applicable
- extend build coverage of drivers by enabling more to be compiled with
COMPILE_TEST enabled
- allow building gpio-stmpe as a module
- use dev_err_probe() where it makes sense in drivers
Late driver fixes:
- fix setting GPIO direction to output in gpio-mpfs
Documentation:
- document the usage of software nodes with GPIO chips
Device-tree bindings:
- Add DT bindings documents for new hardware: Tegra256, MAX7360
- Document a new model in Loongson bindings: LS2K0300
- Document a new model using the generic GPIO binding: IXP4xx
- Convert the DT binding for fsl,mxs-pinctrl to YAML
- fix the schema ID in the "trivial" GPIO schema
- describe GPIO hogs in the generic GPIO binding
----------------------------------------------------------------
Akhilesh Patil (1):
gpio: Kconfig: Update help for GPIO_PCA953X
Alexander Stein (2):
gpio: stmpe: Allow to compile as a module
mfd: stmpe: Allow building as module
Bartosz Golaszewski (80):
Merge tag 'gpio-aggregator-refactoring-for-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into gpio/for-next
pinctrl: stm32: use new generic GPIO chip API
pinctrl: equilibrium: use new generic GPIO chip API
pinctrl: npcm8xx: use new generic GPIO chip API
pinctrl: npcm7xx: use new generic GPIO chip API
pinctrl: wpcm450: use new generic GPIO chip API
Merge branch 'ib-gpio_generic_chip_init' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl into gpio/for-next
gpio: generic: provide to_gpio_generic_chip()
gpio: generic: provide helpers for reading and writing registers
gpio: hisi: use the BGPIOF_UNREADABLE_REG_DIR flag
gpio: ts4800: remove the unnecessary call to platform_set_drvdata()
gpio: ts4800: use generic device properties
gpio: ts4800: use dev_err_probe()
gpio: ts4800: use new generic GPIO chip API
gpio: loongson-64bit: use new generic GPIO chip API
gpio: dwapb: use new generic GPIO chip API
gpio: amdpt: use new generic GPIO chip API
gpio: rda: use new generic GPIO chip API
gpio: grgpio: use new generic GPIO chip API
gpio: mpc8xxx: use new generic GPIO chip API
gpio: ge: use new generic GPIO chip API
gpio: sim: don't use GPIO base in debugfs output
gpio: xgene-sb: use new generic GPIO chip API
gpio: mxs: order includes alphabetically
gpio: mxs: use new generic GPIO chip API
gpio: mlxbf2: use dev_err_probe() where applicable
gpio: mlxbf2: use new generic GPIO chip API
gpio: xgs-iproc: use new generic GPIO chip API
gpio: ftgpio010: order includes alphabetically
gpio: ftgpio010: use new generic GPIO chip API
gpio: realtek-otto: use new generic GPIO chip API
gpio: hisi: use new generic GPIO chip API
gpio: vf610: use new generic GPIO chip API
gpio: visconti: use new generic GPIO chip API
gpio: stmpe: don't print out global GPIO numbers in debugfs callbacks
gpio: nomadik: don't print out global GPIO numbers in debugfs callbacks
gpio: wm831x: don't print out global GPIO numbers in debugfs callbacks
gpio: wm8994: don't print out global GPIO numbers in debugfs callbacks
gpio: mvebu: don't print out global GPIO numbers in debugfs callbacks
gpio: xra1403: don't print out global GPIO numbers in debugfs callbacks
mfd: vexpress-sysreg: Check the return value of devm_gpiochip_add_data()
mfd: vexpress-sysreg: Use new generic GPIO chip API
Merge tag 'ib-mfd-gpio-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into gpio/for-next
Merge tag 'gpio/mfd-stmpe-for-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into gpio/for-next
gpio: nomadik: wrap a local variable in a necessary ifdef
Merge tag 'v6.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into gpio/for-next
gpio: ixp4xx: allow building the module with COMPILE_TEST enabled
gpio: ixp4xx: use new generic GPIO chip API
gpio: idt3243x: use new generic GPIO chip API
gpio: blzp1600: use new generic GPIO chip API
gpio: tb10x: order includes alphabetically
gpio: tb10x: allow building the module with COMPILE_TEST=y
gpio: tb10x: use new generic GPIO chip API
gpio: mlxbf: use new generic GPIO chip API
gpio: ep93xx: allow building the module with COMPILE_TEST enabled
gpio: ep93xx: order includes alphabetically
gpio: ep93xx: use new generic GPIO chip API
gpio: mlxbf3: use new generic GPIO chip API
gpio: use more common syntax for compound literals
gpiolib: add a common prefix to GPIO descriptor flags
gpio: loongson1: allow building the module with COMPILE_TEST enabled
gpio: loongson1: use new generic GPIO chip API
gpio: hlwd: use new generic GPIO chip API
gpio: ath79: use new generic GPIO chip API
gpio: ath79: use the generic GPIO chip lock for IRQ handling
gpio: xgene-sb: use generic GPIO chip register read and write APIs
gpio: brcmstb: use new generic GPIO chip API
gpio: mt7621: use new generic GPIO chip API
gpio: mt7621: use the generic GPIO chip lock for IRQ handling
gpio: menz127: use new generic GPIO chip API
gpio: sifive: use new generic GPIO chip API
gpio: spacemit-k1: use new generic GPIO chip API
gpio: sodaville: use new generic GPIO chip API
gpio: mmio: use new generic GPIO chip API
gpio: move gpio-mmio-specific fields out of struct gpio_chip
gpio: nomadik: fix the debugfs helper stub
Merge tag 'ib-mfd-gpio-hwmon-i2c-can-rtc-watchdog-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into gpio/for-next
Merge tag 'ib-mfd-gpio-input-pinctrl-pwm-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into gpio/for-next
gpio: generic: rename BGPIOF_ flags to GPIO_GENERIC_
gpio: generic: move GPIO_GENERIC_ flags to the correct header
Chen Ni (1):
gpio: loongson-64bit: Remove unneeded semicolon
Christophe JAILLET (1):
gpio: pisosr: Use devm_mutex_init()
Colin Ian King (1):
gpio: loongson-64bit: Fix a less than zero check on an unsigned int struct field
Conor Dooley (1):
gpio: mpfs: fix setting gpio direction to output
Dan Carpenter (1):
gpio: aggregator: Fix off by one in gpiochip_fwd_desc_add()
Dmitry Torokhov (1):
Documentation: gpio: add documentation about using software nodes
Frank Li (1):
dt-bindings: gpio: Move fsl,mxs-pinctrl.txt into gpio-mxs.yaml
Geert Uytterhoeven (1):
gpio: TODO: remove the task for converting to the new line setters
Ioana Ciornei (1):
dt-bindings: gpio: fix trivial-gpio's schema id
Kamel Bouhara (2):
mfd: Add max7360 support
pwm: max7360: Add MAX7360 PWM support
Krzysztof Kozlowski (1):
dt-bindings: gpio: Minor whitespace cleanup in example
Li Jun (1):
gpio: aggregator: fix macros coding style error
Linus Walleij (3):
dt-bindings: gpio-mmio: Support hogs
dt-bindings: gpio-mmio: Add MMIO for IXP4xx expansion bus
gpio: mmio: Add compatible for the ixp4xx eb MMIO
Mathieu Dubois-Briand (8):
dt-bindings: mfd: gpio: Add MAX7360
pinctrl: Add MAX7360 pinctrl driver
gpio: regmap: Allow to allocate regmap-irq device
gpio: regmap: Allow to provide init_valid_mask callback
gpio: max7360: Add MAX7360 gpio support
input: keyboard: Add support for MAX7360 keypad
input: misc: Add support for MAX7360 rotary
MAINTAINERS: Add entry on MAX7360 driver
Ming Yu (7):
mfd: Add core driver for Nuvoton NCT6694
gpio: Add Nuvoton NCT6694 GPIO support
i2c: Add Nuvoton NCT6694 I2C support
can: Add Nuvoton NCT6694 CANFD support
watchdog: Add Nuvoton NCT6694 WDT support
hwmon: Add Nuvoton NCT6694 HWMON support
rtc: Add Nuvoton NCT6694 RTC support
Prathamesh Shete (2):
dt-bindings: gpio: Add Tegra256 support
gpio: tegra186: Add support for Tegra256
Thomas Richard (9):
gpiolib: add support to register sparse pin range
gpio: aggregator: move GPIO forwarder allocation in a dedicated function
gpio: aggregator: refactor the code to add GPIO desc in the forwarder
gpio: aggregator: refactor the forwarder registration part
gpio: aggregator: update gpiochip_fwd_setup_delay_line() parameters
gpio: aggregator: export symbols of the GPIO forwarder library
gpio: aggregator: handle runtime registration of gpio_desc in gpiochip_fwd
gpio: aggregator: add possibility to attach data to the forwarder
lib/string_choices: Add str_input_output() helper
Waqar Hameed (1):
gpio: twl4030: Remove error print for devm_add_action_or_reset()
Wolfram Sang (1):
gpio: remove unneeded 'fast_io' parameter in regmap_config
Yao Zi (2):
dt-bindings: gpio: loongson: Document GPIO controller of LS2K0300 SoC
gpio: loongson-64bit: Add support for Loongson-2K0300 SoC
.../devicetree/bindings/gpio/gpio-mmio.yaml | 36 +-
.../devicetree/bindings/gpio/gpio-mxs.yaml | 80 +-
.../devicetree/bindings/gpio/loongson,ls-gpio.yaml | 28 +-
.../devicetree/bindings/gpio/maxim,max31910.yaml | 6 +-
.../bindings/gpio/maxim,max7360-gpio.yaml | 83 ++
.../bindings/gpio/nvidia,tegra186-gpio.yaml | 2 +
.../devicetree/bindings/gpio/spacemit,k1-gpio.yaml | 2 +-
.../devicetree/bindings/gpio/trivial-gpio.yaml | 2 +-
.../devicetree/bindings/mfd/maxim,max7360.yaml | 191 +++++
.../bindings/pinctrl/fsl,mxs-pinctrl.txt | 127 ---
Documentation/driver-api/gpio/board.rst | 65 ++
Documentation/driver-api/gpio/index.rst | 1 +
Documentation/driver-api/gpio/legacy-boards.rst | 298 +++++++
MAINTAINERS | 25 +
drivers/gpio/Kconfig | 49 +-
drivers/gpio/Makefile | 2 +
drivers/gpio/TODO | 17 -
drivers/gpio/gpio-aggregator.c | 410 +++++++--
drivers/gpio/gpio-amdpt.c | 44 +-
drivers/gpio/gpio-ath79.c | 88 +-
drivers/gpio/gpio-blzp1600.c | 39 +-
drivers/gpio/gpio-brcmstb.c | 114 +--
drivers/gpio/gpio-cadence.c | 2 +-
drivers/gpio/gpio-dwapb.c | 160 ++--
drivers/gpio/gpio-ep93xx.c | 33 +-
drivers/gpio/gpio-ftgpio010.c | 48 +-
drivers/gpio/gpio-ge.c | 25 +-
drivers/gpio/gpio-grgpio.c | 87 +-
drivers/gpio/gpio-hisi.c | 48 +-
drivers/gpio/gpio-hlwd.c | 105 +--
drivers/gpio/gpio-idt3243x.c | 45 +-
drivers/gpio/gpio-ixp4xx.c | 72 +-
drivers/gpio/gpio-loongson-64bit.c | 228 ++++-
drivers/gpio/gpio-loongson1.c | 40 +-
drivers/gpio/gpio-max7360.c | 257 ++++++
drivers/gpio/gpio-menz127.c | 31 +-
drivers/gpio/gpio-mlxbf.c | 25 +-
drivers/gpio/gpio-mlxbf2.c | 81 +-
drivers/gpio/gpio-mlxbf3.c | 101 +--
drivers/gpio/gpio-mmio.c | 363 ++++----
drivers/gpio/gpio-mpc8xxx.c | 105 ++-
drivers/gpio/gpio-mpfs.c | 2 +-
drivers/gpio/gpio-mt7621.c | 80 +-
drivers/gpio/gpio-mvebu.c | 3 +-
drivers/gpio/gpio-mxc.c | 2 +-
drivers/gpio/gpio-mxs.c | 31 +-
drivers/gpio/gpio-nct6694.c | 499 +++++++++++
drivers/gpio/gpio-nomadik.c | 27 +-
drivers/gpio/gpio-pisosr.c | 8 +-
drivers/gpio/gpio-rda.c | 35 +-
drivers/gpio/gpio-realtek-otto.c | 41 +-
drivers/gpio/gpio-regmap.c | 30 +-
drivers/gpio/gpio-sifive.c | 74 +-
drivers/gpio/gpio-sim.c | 3 +-
drivers/gpio/gpio-sodaville.c | 20 +-
drivers/gpio/gpio-spacemit-k1.c | 29 +-
drivers/gpio/gpio-stmpe.c | 34 +-
drivers/gpio/gpio-tb10x.c | 74 +-
drivers/gpio/gpio-tegra186.c | 28 +
drivers/gpio/gpio-ts4800.c | 39 +-
drivers/gpio/gpio-twl4030.c | 4 +-
drivers/gpio/gpio-vf610.c | 31 +-
drivers/gpio/gpio-visconti.c | 25 +-
drivers/gpio/gpio-wm831x.c | 5 +-
drivers/gpio/gpio-wm8994.c | 6 +-
drivers/gpio/gpio-xgene-sb.c | 58 +-
drivers/gpio/gpio-xgs-iproc.c | 34 +-
drivers/gpio/gpio-xra1403.c | 3 +-
drivers/gpio/gpiolib-cdev.c | 90 +-
drivers/gpio/gpiolib-of.c | 2 +-
drivers/gpio/gpiolib-sysfs.c | 46 +-
drivers/gpio/gpiolib.c | 195 +++--
drivers/gpio/gpiolib.h | 36 +-
drivers/hwmon/Kconfig | 10 +
drivers/hwmon/Makefile | 1 +
drivers/hwmon/nct6694-hwmon.c | 949 +++++++++++++++++++++
drivers/i2c/busses/Kconfig | 10 +
drivers/i2c/busses/Makefile | 1 +
drivers/i2c/busses/i2c-nct6694.c | 196 +++++
drivers/input/keyboard/Kconfig | 12 +
drivers/input/keyboard/Makefile | 1 +
drivers/input/keyboard/max7360-keypad.c | 308 +++++++
drivers/input/misc/Kconfig | 10 +
drivers/input/misc/Makefile | 1 +
drivers/input/misc/max7360-rotary.c | 192 +++++
drivers/mfd/Kconfig | 39 +-
drivers/mfd/Makefile | 3 +
drivers/mfd/max7360.c | 171 ++++
drivers/mfd/nct6694.c | 388 +++++++++
drivers/mfd/stmpe.c | 6 +
drivers/mfd/vexpress-sysreg.c | 25 +-
drivers/net/can/usb/Kconfig | 11 +
drivers/net/can/usb/Makefile | 1 +
drivers/net/can/usb/nct6694_canfd.c | 832 ++++++++++++++++++
drivers/pinctrl/Kconfig | 11 +
drivers/pinctrl/Makefile | 1 +
drivers/pinctrl/nomadik/pinctrl-nomadik.c | 2 +-
drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c | 181 ++--
drivers/pinctrl/nuvoton/pinctrl-npcm8xx.c | 154 ++--
drivers/pinctrl/nuvoton/pinctrl-wpcm450.c | 46 +-
drivers/pinctrl/pinctrl-equilibrium.c | 26 +-
drivers/pinctrl/pinctrl-equilibrium.h | 2 +-
drivers/pinctrl/pinctrl-max7360.c | 215 +++++
drivers/pinctrl/stm32/pinctrl-stm32-hdp.c | 32 +-
drivers/pwm/Kconfig | 10 +
drivers/pwm/Makefile | 1 +
drivers/pwm/pwm-max7360.c | 209 +++++
drivers/rtc/Kconfig | 10 +
drivers/rtc/Makefile | 1 +
drivers/rtc/rtc-nct6694.c | 297 +++++++
drivers/watchdog/Kconfig | 11 +
drivers/watchdog/Makefile | 1 +
drivers/watchdog/nct6694_wdt.c | 307 +++++++
include/dt-bindings/gpio/tegra256-gpio.h | 28 +
include/linux/gpio/driver.h | 105 ++-
include/linux/gpio/forwarder.h | 41 +
include/linux/gpio/generic.h | 102 ++-
include/linux/gpio/gpio-nomadik.h | 6 +-
include/linux/gpio/regmap.h | 18 +
include/linux/mfd/max7360.h | 109 +++
include/linux/mfd/nct6694.h | 102 +++
include/linux/string_choices.h | 6 +
122 files changed, 8577 insertions(+), 1783 deletions(-)
create mode 100644 Documentation/devicetree/bindings/gpio/maxim,max7360-gpio.yaml
create mode 100644 Documentation/devicetree/bindings/mfd/maxim,max7360.yaml
delete mode 100644 Documentation/devicetree/bindings/pinctrl/fsl,mxs-pinctrl.txt
create mode 100644 Documentation/driver-api/gpio/legacy-boards.rst
create mode 100644 drivers/gpio/gpio-max7360.c
create mode 100644 drivers/gpio/gpio-nct6694.c
create mode 100644 drivers/hwmon/nct6694-hwmon.c
create mode 100644 drivers/i2c/busses/i2c-nct6694.c
create mode 100644 drivers/input/keyboard/max7360-keypad.c
create mode 100644 drivers/input/misc/max7360-rotary.c
create mode 100644 drivers/mfd/max7360.c
create mode 100644 drivers/mfd/nct6694.c
create mode 100644 drivers/net/can/usb/nct6694_canfd.c
create mode 100644 drivers/pinctrl/pinctrl-max7360.c
create mode 100644 drivers/pwm/pwm-max7360.c
create mode 100644 drivers/rtc/rtc-nct6694.c
create mode 100644 drivers/watchdog/nct6694_wdt.c
create mode 100644 include/dt-bindings/gpio/tegra256-gpio.h
create mode 100644 include/linux/gpio/forwarder.h
create mode 100644 include/linux/mfd/max7360.h
create mode 100644 include/linux/mfd/nct6694.h
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