From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
Linus,
Here's the majority of changes for this merge window from the GPIO subsystem.
We have three new drivers, support for some new models in existing ones and
lots of various tweaks and improvements across the board (switching to using
recommended APIs, code shrink and simplification, etc.).
We also have a new feature in the character device uAPI where we now notify
the user-space about changes triggered by in-kernel users as well, not only
when they were done by other user-space agents.
Details are in the signed tag as usual.
The merge commits you'll see here were done to pull Intel changes from Andy,
MFD dependencies from Lee and to pull back upstream fixes to avoid conflicts.
The non-gpio commits in this PR are either pulled from the MFD tree or were
acked by relevant maintainers and concern the removal of a deprecated GPIO
symbol from various drivers across the kernel tree.
I will be picking up some more fixes over the course of this week so there'll
be another small PR in the second week.
Please pull.
Best Regards,
Bartosz Golaszewski
The following changes since commit 59b723cd2adbac2a34fc8e12c74ae26ae45bf230:
Linux 6.12-rc6 (2024-11-03 14:05:52 -1000)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux.git tags/gpio-updates-for-v6.13-rc1
for you to fetch changes up to bef29ca3a6458582ac13320d47bf2646e5734dc8:
gpio: tegra186: Allow to enable driver on Tegra234 (2024-11-18 11:45:06 +0100)
----------------------------------------------------------------
gpio updates for v6.13-rc1
GPIOLIB core:
- use the new mem_is_zero() instead of memchr_inv(s, 0, n)
- don't store debounce period twice needlessly
- clean-up debugfs handling
- remove leftover comments referring to no longer used spinlocks
- unduplicate some operations like SRCU locks and initializing GPIO descriptors
- constify the sysfs class struct
- use lock guards in GPIO sysfs code
- update GPIO uAPI internal flags all at once atomically for consistency with
other places
- modify the behavior of the sysfs interface by no longer exporting lines that
are named inside the driver code or board files with the sysfs links bearing
the line names as this has for many years been largely unused due to the
prevalence of DT, ACPI and firmware nodes over board files and made the API
inconsistent
- for GPIO interrupt providers: free irqs that are still requested by users
when removing the chip
GPIO uAPI:
- notify user-space about changes to GPIO lines' state (requested, released,
reconfigured) triggered from the kernel as well (until now we'd only do
this for changes triggered from user-space)
- to that end: modify the internal workings of the notification mechanism by
switching to an atomic notifier which allows us to send events from atomic
context
- also to that end store the debounce period in the GPIO descriptor struct
and not in the character device context struct
- while at it, also cover the corner-case of users introducing changes over
sysfs while others watch them via the character device
- don't report GPIO lines requested as interrupts as "used" to user-space as it
can still request them as GPIOs
New drivers:
- add a driver for the GPIO functionality of the MFD Congatec Board Controller
- add a driver for the PolarFire GPIO controller
- add a driver supporting the GPIOs on FTDI FT2232H
Driver improvements:
- use generic device property accessors instead of OF-specific ones across
many GPIO drivers (mpc8xxx, vf610, eic-sprd, davinci, ts4900, xilinx, mvebu)
- use devres helpers to simplify error paths and either shrink or entirely
remove the driver's remove() callback (grgpio, amdpt, menz127, max730x,
ftgpio010, 74x164, ljca)
- use helper variables to store the address of pdev->dev and avoid some
line-breaks
- use device_for_each_child_node_scoped() to avoid having to put the fwnode
on breaks or errors (gpio-sim, gpio-dwapb, gpiolib-acpi)
- use a scoped bitmap to simplify the code and drop goto labels in
gpio-aggregator
- drop unneeded Kconfig dependencies on OF_GPIO (grgpio, mveby, xilinx)
- add support for new models to gpio-aspeed, gpio-rockchip and gpio-dwapb
- clean-up ACPI handling and some other bits in gpio-xgene-sb
- replace deprecated PCI functions in pcie-idio-24 and pci-idio-16
- allow to build davinci and mvebu drivers with COMPILE_TEST=y
- remove dead code in gpio-mb86s7x
- switch back to using platform_driver::remove() (after the conversion to
remove_new()) across the GPIO drivers
- remove remaining uses of GPIOF_ACTIVE_LOW across the tree and drop this
deprecated symbol
- convert the gpio-altera driver to no longer pull in the deprecated
legacy-of-mm-gpiochip.h header
- use of_property_present() instead of of_property_read_bool() in gpiolib-of
and gpio-rockchip
- allow to build the tegra186 driver on Tegra234 platforms in Kconfig
Late fixes:
- add a missing return value check after devm_kasprintf() to gpio-grgpio
DT bindings:
- document the ngpios property of gpio-mmio
- add support for a new aspeed model
- fix the example for st,nomadik-gpio
Other:
- kernel doc and comments tweaks
- fix typos in TODO
- reorder headers alphabetically in some drivers
- fix incorrect format specifiers in gpio tools
----------------------------------------------------------------
Andy Shevchenko (13):
gpio: xgene-sb: Remove unneeded definitions for properties
gpio: xgene-sb: Drop ACPI_PTR() and CONFIG_ACPI guards
gpio: xgene-sb: Tidy up ACPI and OF ID tables
gpio: xgene-sb: don't use "proxy" headers
gpio: mpsse: Check for error code from devm_mutex_init() call
gpio: altera: Drop legacy-of-mm-gpiochip.h header
Input: gpio_keys - avoid using GPIOF_ACTIVE_LOW
Input: gpio_keys_polled - avoid using GPIOF_ACTIVE_LOW
leds: gpio: Avoid using GPIOF_ACTIVE_LOW
pcmcia: soc_common: Avoid using GPIOF_ACTIVE_LOW
USB: gadget: pxa27x_udc: Avoid using GPIOF_ACTIVE_LOW
gpio: Get rid of GPIOF_ACTIVE_LOW
gpiolib: cdev: use !mem_is_zero() instead of memchr_inv(s, 0, n)
Arnd Bergmann (1):
gpiolib: avoid format string weakness in workqueue interface
Bartosz Golaszewski (52):
gpio: free irqs that are still requested when the chip is being removed
gpio: sysfs: make the sysfs export behavior consistent
gpio: aggregator: simplify aggr_parse() with scoped bitmap
gpio: mvebu: allow building the module with COMPILE_TEST=y
gpio: mvebu: use generic device properties
gpio: xilinx: drop dependency on GPIO_OF
gpio: xilinx: use helper variable to store the address of pdev->dev
gpio: xilinx: use generic device properties
gpiolib: use v2 defines for line state change events
gpiolib: unify two loops initializing GPIO descriptors
gpio: cdev: update flags at once when reconfiguring from user-space
Merge tag 'ib-mfd-gpio-i2c-watchdog-v6.13' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/lee/mfd into gpio/for-next
Merge tag 'v6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into gpio/for-next
gpio: mvebu: drop dependency on OF_GPIO
gpio: ts4900: use generic device properties
gpio: davinci: allow building the module with COMPILE_TEST=y
gpio: davinci: use generic device properties
gpio: eic-sprd: use generic device_get_match_data()
gpio: vf610: use generic device_get_match_data()
gpio: mpc8xxx: use a helper variable to store the address of pdev->dev
gpio: mpc8xxx: use generic device_is_compatible()
gpio: ljca: use devm_mutex_init() to simplify the error path and remove()
gpio: sysfs: constify gpio class
gpio: fold the Kconfig prompt into the option type for GPIO CDEV
gpio: amdpt: remove remove()
gpio: menz127: simplify error path and remove remove()
gpio: 74x164: shrink code
gpio: ftgpio010: shrink code
gpio: max730x: use devres to shrink and simplify code
gpiolib: notify user-space when a driver requests its own desc
gpiolib: unduplicate chip guard in set_config path
gpio: cdev: go back to storing debounce period in the GPIO descriptor
gpio: cdev: prepare gpio_desc_to_lineinfo() for being called from atomic
gpiolib: add a per-gpio_device line state notification workqueue
gpio: cdev: put emitting the line state events on a workqueue
gpiolib: switch the line state notifier to atomic
gpiolib: notify user-space about in-kernel line state changes
gpio: grgpio: drop Kconfig dependency on OF_GPIO
gpio: grgpio: order headers alphabetically
gpio: grgpio: use a helper variable to store the address of ofdev->dev
gpio: grgpio: remove remove()
gpiolib: fix a NULL-pointer dereference when setting direction
gpiolib: remove leftover spinlock bits
gpio: sysfs: demote warning messages on invalid user input to debug
Merge tag 'v6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into gpio/for-next
gpio: sysfs: use cleanup guards for gpiod_data::mutex
gpio: sysfs: use cleanup guards for the sysfs_lock mutex
gpio: sysfs: emit chardev line-state events on GPIO export
gpio: sysfs: emit chardev line-state events on active-low changes
gpio: sysfs: emit chardev line-state events on edge store
gpio: cdev: don't report GPIOs requested as interrupts as used
Merge tag 'intel-gpio-v6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-gpio-intel into gpio/for-next
Billy Tsai (5):
gpio: aspeed: Change the macro to support deferred probe
gpio: aspeed: Remove the name for bank array
gpio: aspeed: Create llops to handle hardware access
dt-bindings: gpio: aspeed,ast2400-gpio: Support ast2700
gpio: aspeed: Support G7 Aspeed gpio controller
Charles Han (1):
gpio: grgpio: Add NULL check in grgpio_probe
Conor Dooley (2):
MAINTAINERS: add gpio driver to PolarFire entry
gpio: mpfs: add CoreGPIO support
Dan Carpenter (1):
gpio: mb86s7x: remove some dead code in mb86s70_gpio_to_irq()
Javier Carrasco (3):
gpio: acpi: switch to device_for_each_child_node_scoped()
gpio: dwapb: switch to device_for_each_child_node_scoped()
gpio: sim: switch to device_for_each_child_node_scoped()
Johan Hovold (1):
gpiolib: clean up debugfs separator handling
Kent Gibson (2):
gpiolib: cdev: Fix reference to linereq_set_config_unlocked()
gpiolib: cdev: remove redundant store of debounce_period_us
Lars-Peter Clausen (1):
gpio: tegra186: Allow to enable driver on Tegra234
Lewis Hanly (1):
gpio: mpfs: add polarfire soc gpio support
Linus Walleij (1):
dt-bindings: gpio-mmio: Add ngpios property
Luo Yifan (1):
tools: gpio: Fix several incorrect format specifiers
Mary Strodl (1):
gpio: add support for FTDI's MPSSE as GPIO
Rob Herring (Arm) (2):
dt-bindings: gpio: st,nomadik-gpio: Add missing "#interrupt-cells" to example
gpio: Use of_property_present() for non-boolean properties
Shivam Chaudhary (1):
Fix typos in GPIO TODO document
Srikar Dronamraju (1):
gpio: sloppy-logic-analyzer remove reference to rcu_momentary_dyntick_idle()
Thomas Richard (5):
mfd: Add Congatec Board Controller driver
gpio: Congatec Board Controller gpio driver
i2c: Congatec Board Controller i2c bus driver
watchdog: Congatec Board Controller watchdog timer driver
MAINTAINERS: Add entry for Congatec Board Controller
Uwe Kleine-König (1):
gpio: Switch back to struct platform_driver::remove()
William Breathitt Gray (2):
gpio: pci-idio-16: Replace deprecated PCI functions
gpio: pcie-idio-24: Replace deprecated PCI functions
Ye Zhang (3):
gpio: rockchip: explan the format of the GPIO version ID
gpio: rockchip: change the GPIO version judgment logic
gpio: rockchip: support new version GPIO
Yoshihiro Furudera (1):
gpio: dwapb: Add ACPI HID for DWAPB GPIO controller on Fujitsu MONAKA
.../bindings/gpio/aspeed,ast2400-gpio.yaml | 19 +-
.../devicetree/bindings/gpio/gpio-mmio.yaml | 13 +-
.../devicetree/bindings/gpio/st,nomadik-gpio.yaml | 1 +
MAINTAINERS | 10 +
drivers/gpio/Kconfig | 41 +-
drivers/gpio/Makefile | 3 +
drivers/gpio/TODO | 4 +-
drivers/gpio/gpio-74x164.c | 21 +-
drivers/gpio/gpio-aggregator.c | 16 +-
drivers/gpio/gpio-altera.c | 178 +++---
drivers/gpio/gpio-amdpt.c | 10 +-
drivers/gpio/gpio-aspeed.c | 618 +++++++++++++--------
drivers/gpio/gpio-brcmstb.c | 2 +-
drivers/gpio/gpio-cadence.c | 2 +-
drivers/gpio/gpio-cgbc.c | 196 +++++++
drivers/gpio/gpio-davinci.c | 10 +-
drivers/gpio/gpio-dln2.c | 2 +-
drivers/gpio/gpio-dwapb.c | 5 +-
drivers/gpio/gpio-eic-sprd.c | 4 +-
drivers/gpio/gpio-ftgpio010.c | 45 +-
drivers/gpio/gpio-grgpio.c | 75 +--
drivers/gpio/gpio-ljca.c | 17 +-
drivers/gpio/gpio-lpc18xx.c | 2 +-
drivers/gpio/gpio-max730x.c | 17 +-
drivers/gpio/gpio-mb86s7x.c | 4 +-
drivers/gpio/gpio-menz127.c | 58 +-
drivers/gpio/gpio-mm-lantiq.c | 2 +-
drivers/gpio/gpio-mpc5200.c | 4 +-
drivers/gpio/gpio-mpc8xxx.c | 56 +-
drivers/gpio/gpio-mpfs.c | 188 +++++++
drivers/gpio/gpio-mpsse.c | 527 ++++++++++++++++++
drivers/gpio/gpio-mvebu.c | 8 +-
drivers/gpio/gpio-omap.c | 2 +-
drivers/gpio/gpio-pci-idio-16.c | 17 +-
drivers/gpio/gpio-pcie-idio-24.c | 19 +-
drivers/gpio/gpio-rcar.c | 2 +-
drivers/gpio/gpio-rockchip.c | 28 +-
drivers/gpio/gpio-sim.c | 7 +-
drivers/gpio/gpio-sloppy-logic-analyzer.c | 2 +-
drivers/gpio/gpio-tb10x.c | 2 +-
drivers/gpio/gpio-ts4900.c | 6 +-
drivers/gpio/gpio-ts5500.c | 2 +-
drivers/gpio/gpio-uniphier.c | 2 +-
drivers/gpio/gpio-vf610.c | 7 +-
drivers/gpio/gpio-xgene-sb.c | 39 +-
drivers/gpio/gpio-xgs-iproc.c | 2 +-
drivers/gpio/gpio-xilinx.c | 51 +-
drivers/gpio/gpio-zynq.c | 2 +-
drivers/gpio/gpiolib-acpi.c | 4 +-
drivers/gpio/gpiolib-cdev.c | 384 ++++++-------
drivers/gpio/gpiolib-legacy.c | 3 -
drivers/gpio/gpiolib-of.c | 2 +-
drivers/gpio/gpiolib-sysfs.c | 182 +++---
drivers/gpio/gpiolib.c | 202 +++++--
drivers/gpio/gpiolib.h | 14 +-
drivers/i2c/busses/Kconfig | 10 +
drivers/i2c/busses/Makefile | 1 +
drivers/i2c/busses/i2c-cgbc.c | 406 ++++++++++++++
drivers/input/keyboard/gpio_keys.c | 10 +-
drivers/input/keyboard/gpio_keys_polled.c | 12 +-
drivers/leds/leds-gpio.c | 9 +-
drivers/mfd/Kconfig | 12 +
drivers/mfd/Makefile | 1 +
drivers/mfd/cgbc-core.c | 411 ++++++++++++++
drivers/pcmcia/soc_common.c | 12 +-
drivers/usb/gadget/udc/pxa27x_udc.c | 7 +-
drivers/watchdog/Kconfig | 10 +
drivers/watchdog/Makefile | 1 +
drivers/watchdog/cgbc_wdt.c | 211 +++++++
include/linux/gpio.h | 3 -
include/linux/mfd/cgbc.h | 44 ++
tools/gpio/gpio-event-mon.c | 8 +-
tools/gpio/gpio-sloppy-logic-analyzer.sh | 2 +-
73 files changed, 3245 insertions(+), 1064 deletions(-)
create mode 100644 drivers/gpio/gpio-cgbc.c
create mode 100644 drivers/gpio/gpio-mpfs.c
create mode 100644 drivers/gpio/gpio-mpsse.c
create mode 100644 drivers/i2c/busses/i2c-cgbc.c
create mode 100644 drivers/mfd/cgbc-core.c
create mode 100644 drivers/watchdog/cgbc_wdt.c
create mode 100644 include/linux/mfd/cgbc.h
[GIT PULL] gpio updates for v6.13-rc1
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- Subject: [GIT PULL] gpio updates for v6.13-rc1
- From: Bartosz Golaszewski <brgl@xxxxxxxx>
- Date: Mon, 18 Nov 2024 13:55:12 +0100
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