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GPIOLIB core:
- provide interfaces allowing users to retrieve, manage and query the
reference counted GPIO device instead of accessing the private gpio_chip
structure
- replace gpiochip_find() with gpio_device_find()
- remove unused acpi_get_and_request_gpiod()
- improve the ignore_interrupt functionality in GPIO ACPI
- correct notifier return codes in gpiolib-of
- unexport gpiod_set_transitory() as it's unused outside of core GPIO code
- while there are still external users accessing struct gpio_chip, let's
make gpiochip_get_desc() public so that they at least use the preferred
helper
- improve locking for lookup tables
- annotate struct linereq with __counted_by
- improve GPIOLIB docs
- add an OF quirk for LED trigger sources
Driver improvements:
- convert all GPIO drivers with .remove() callbacks to using the new
variant returning void instead of int
- stop accessing the GPIOLIB private structures in gpio-mockup,
i2c-mux-gpio, hte-tegra194, gpio-sim
- use the recommended pattern for autofree variables in gpio-sim
- add support for more models to gpio-loongson
- use a notifier chain to notify other blocks about interrupts in
gpio-eic-sprd instead of looking up GPIO devices on every interrupt
- convert gpio-pca953x and gpio-fx6408 to using the maple tree regmap
cache
- don't include GPIOLIB internal headers in drivers which don't need them
- move the ingenic NAND quirk into gpiolib-of
- add an ignore interrupt quirk for Peaq C1010
- drop static GPIO base from gpio-omap, gpio-f7188x
- use the preferred device_get_match_data() function in drivers that still
don't
- refactor gpio-pca953x: switch to using DEFINE_SIMPLE_DEV_PM_OPS(), use
cleanup helpers, use dev_err_probe() where it makes sense, fully convert
to using devres and some other minor tweaks
DT bindings:
- add support for a new model to gpio-vf610 and update existing properties
- add support for more loongson models
- add missing support for imx models that are used but undocumented
- convert bindings for Intel IXP4xx to schema
Minor stuff:
- deprecate gpio-mockup in favor of gpio-sim
- include missing headers here and there
- stop using gpiochip_find() in OMAP1 board files
- minor tweaks in gpio-vf610, gpio-hisi
- remove unneeded 'extern' specifiers from headers
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Merge tag 'gpio-updates-for-v6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"We don't have any new drivers. The loongson driver is getting extended
with support for new models. There's a big refactor of gpio-pca953x
and many small improvements to others.
The GPIO code in the kernel has acquired a lot of cruft over the years
as well as many abusers of the API across the kernel tree. This
release cycle we have started a major cleanup and improvement effort
that will most likely span several releases. We have started by
converting external users of struct gpio_chip to accessing the wrapper
around it - struct gpio_device. This is because the latter is
reference counted while the former is removed when the provider is
unbound. We also removed several instances of drivers accessing
private GPIOLIB structures and including the private header from
drivers/gpio/.
To that end you'll see several commits aimed at different subsystems
(acked by relevant maintainers) as well as two merges from the
x86/platform tree.
We'll then rework the locking in GPIOLIB which currently uses a big
spinlock for many different things and could use becoming more
fine-grained, especially as it doesn't even get the locking right.
We'll also use SRCU for protecting the gpio_chip pointer against
in-kernel hot-unplug crashes similar to what we saw triggered from
user-space and fixed with semaphores in gpiolib-cdev. The core GPIOLIB
is still vulnerable to these use-cases. I'm just mentioning the plans
here, this is not part of this PR.
You'll see some new instances of using __free(). We've added a
gpio_device_put cleanup helper similar to the put_device one
introduced by Peter Zijlstra and used it according to the preferred
pattern except where it didn't make sense.
GPIOLIB core:
- provide interfaces allowing users to retrieve, manage and query the
reference counted GPIO device instead of accessing the private
gpio_chip structure
- replace gpiochip_find() with gpio_device_find()
- remove unused acpi_get_and_request_gpiod()
- improve the ignore_interrupt functionality in GPIO ACPI
- correct notifier return codes in gpiolib-of
- unexport gpiod_set_transitory() as it's unused outside of core GPIO
code
- while there are still external users accessing struct gpio_chip,
let's make gpiochip_get_desc() public so that they at least use the
preferred helper
- improve locking for lookup tables
- annotate struct linereq with __counted_by
- improve GPIOLIB docs
- add an OF quirk for LED trigger sources
Driver improvements:
- convert all GPIO drivers with .remove() callbacks to using the new
variant returning void instead of int
- stop accessing the GPIOLIB private structures in gpio-mockup,
i2c-mux-gpio, hte-tegra194, gpio-sim
- use the recommended pattern for autofree variables in gpio-sim
- add support for more models to gpio-loongson
- use a notifier chain to notify other blocks about interrupts in
gpio-eic-sprd instead of looking up GPIO devices on every interrupt
- convert gpio-pca953x and gpio-fx6408 to using the maple tree regmap
cache
- don't include GPIOLIB internal headers in drivers which don't need
them
- move the ingenic NAND quirk into gpiolib-of
- add an ignore interrupt quirk for Peaq C1010
- drop static GPIO base from gpio-omap, gpio-f7188x
- use the preferred device_get_match_data() function in drivers that
still don't
- refactor gpio-pca953x: switch to using DEFINE_SIMPLE_DEV_PM_OPS(),
use cleanup helpers, use dev_err_probe() where it makes sense,
fully convert to using devres and some other minor tweaks
DT bindings:
- add support for a new model to gpio-vf610 and update existing
properties
- add support for more loongson models
- add missing support for imx models that are used but undocumented
- convert bindings for Intel IXP4xx to schema
Minor stuff:
- deprecate gpio-mockup in favor of gpio-sim
- include missing headers here and there
- stop using gpiochip_find() in OMAP1 board files
- minor tweaks in gpio-vf610, gpio-hisi
- remove unneeded 'extern' specifiers from headers"
* tag 'gpio-updates-for-v6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (108 commits)
hte: tegra194: add GPIOLIB dependency
hte: tegra194: don't access struct gpio_chip
gpiolib: provide gpio_device_get_base()
i2c: mux: gpio: don't fiddle with GPIOLIB internals
gpiolib: provide gpiod_to_gpio_device()
gpiolib: provide gpio_device_to_device()
gpio: hisi: Fix format specifier
gpiolib: provide gpio_device_find_by_fwnode()
gpio: acpi: remove acpi_get_and_request_gpiod()
gpio: Use device_get_match_data()
gpio: vf610: update comment for i.MX8ULP and i.MX93 legacy compatibles
platform/x86: int3472: Switch to devm_get_gpiod()
platform/x86: int3472: Stop using gpiod_toggle_active_low()
platform/x86: int3472: Add new skl_int3472_gpiod_get_from_temp_lookup() helper
platform/x86: int3472: Add new skl_int3472_fill_gpiod_lookup() helper
gpio: vf610: simplify code by dropping data check
gpio: vf610: add i.MX8ULP of_device_id entry
dt-bindings: gpio: vf610: add i.MX95 compatible
dt-bindings: gpio: vf610: correct i.MX8ULP and i.MX93
dt-bindings: gpio: vf610: update gpio-ranges
...
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