gpio: wcove: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/20250715-gpiochip-set-rv-gpio-remaining-v2-2-072b4cf06330@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: wcove: use regmap_assign_bits() in .set()

Replace the if-else with a direct call to the regmap_assign_bits()
helper and save a couple lines of code.

Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20250715-gpiochip-set-rv-gpio-remaining-v2-1-072b4cf06330@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: pca953x: use regmap_update_bits() to improve performance

Using regmap_update_bits() allows to reduce the number of I2C transfers
when updating bits that haven't changed on non-volatile registers.

For example on a PCAL6416, when changing a GPIO direction from input to
output, the number of I2C transfers can be reduced from 4 to just 1 if
the pull resistors configuration hasn't changed and the output value
is the same as before.

Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Link: https://lore.kernel.org/r/20250714133730.6353-1-hugo@hugovil.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: zynqmp-modepin: set line value in .direction_output()

It's ok to not do anything specific when setting direction but the
callback should still respect the line value the user requests.

Link: https://lore.kernel.org/r/20250709-gpiochip-set-rv-gpio-remaining-v1-19-b8950f69618d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: zynqmp-modepin: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250709-gpiochip-set-rv-gpio-remaining-v1-18-b8950f69618d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: zynq: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250709-gpiochip-set-rv-gpio-remaining-v1-17-b8950f69618d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: zevio: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250709-gpiochip-set-rv-gpio-remaining-v1-16-b8950f69618d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: xtensa: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250709-gpiochip-set-rv-gpio-remaining-v1-15-b8950f69618d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: xtensa: remove unneeded .set() callback

GPIO core deals just fine with input-only controllers not implementing
the .set() callback. Remove the unneeded dummy implementation.

Link: https://lore.kernel.org/r/20250709-gpiochip-set-rv-gpio-remaining-v1-14-b8950f69618d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: xra1403: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250709-gpiochip-set-rv-gpio-remaining-v1-13-b8950f69618d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: xlp: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250709-gpiochip-set-rv-gpio-remaining-v1-12-b8950f69618d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: xlp: drop unneeded ngpio checks

GPIO core already makes sure that offsets higher than the number of GPIOs
are never passed to controller callbacks. We can remove the unnecessary
check.

Link: https://lore.kernel.org/r/20250709-gpiochip-set-rv-gpio-remaining-v1-11-b8950f69618d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: xilinx: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250709-gpiochip-set-rv-gpio-remaining-v1-10-b8950f69618d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: xgene: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250709-gpiochip-set-rv-gpio-remaining-v1-9-b8950f69618d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: wm8994: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20250709-gpiochip-set-rv-gpio-remaining-v1-8-b8950f69618d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: wm8350: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20250709-gpiochip-set-rv-gpio-remaining-v1-7-b8950f69618d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: wm831x: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20250709-gpiochip-set-rv-gpio-remaining-v1-6-b8950f69618d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: winbond: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250709-gpiochip-set-rv-gpio-remaining-v1-5-b8950f69618d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: wcd934x: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250709-gpiochip-set-rv-gpio-remaining-v1-3-b8950f69618d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: wcd934x: check the return value of regmap_update_bits()

regmap_update_bits() can fail so check its return value in
wcd_gpio_direction_output() for consistency with the rest of the code
and propagate any errors.

Link: https://lore.kernel.org/r/20250709-gpiochip-set-rv-gpio-remaining-v1-2-b8950f69618d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: vx855: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250709-gpiochip-set-rv-gpio-remaining-v1-1-b8950f69618d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: virtio: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20250707-gpiochip-set-rv-gpio-round4-v1-12-35668aaaf6d2@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: viperboard: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250707-gpiochip-set-rv-gpio-round4-v1-11-35668aaaf6d2@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: uniphier: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Acked-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/20250707-gpiochip-set-rv-gpio-round4-v1-10-35668aaaf6d2@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: twl6040: set line value in .direction_out()

It's ok for a GPIO controller to be output-only but the .direction_out()
callback must also set the requested line value.

Link: https://lore.kernel.org/r/20250707-gpiochip-set-rv-gpio-round4-v1-9-35668aaaf6d2@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: twl6040: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250707-gpiochip-set-rv-gpio-round4-v1-8-35668aaaf6d2@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: twl4030: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250707-gpiochip-set-rv-gpio-round4-v1-7-35668aaaf6d2@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: ts4900: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250707-gpiochip-set-rv-gpio-round4-v1-6-35668aaaf6d2@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: tqmx86: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Acked-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Link: https://lore.kernel.org/r/20250707-gpiochip-set-rv-gpio-round4-v1-5-35668aaaf6d2@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: tps68470: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250707-gpiochip-set-rv-gpio-round4-v1-4-35668aaaf6d2@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: tps65912: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250707-gpiochip-set-rv-gpio-round4-v1-3-35668aaaf6d2@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: tps65912: check the return value of regmap_update_bits()

regmap_update_bits() can fail, check its return value like we do
elsewhere in the driver.

Link: https://lore.kernel.org/r/20250707-gpiochip-set-rv-gpio-round4-v1-2-35668aaaf6d2@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: tps65910: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250707-gpiochip-set-rv-gpio-round4-v1-1-35668aaaf6d2@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpiolib: don't use GPIO global numbers in debugfs output

One of the users of global GPIO numbers in the kernel are the debugfs
callbacks in GPIO drivers. Before converting any custom .dbg_show()
callbacks in individual modules, let's first make GPIO core stop using
GPIO base in debugfs output. Use hardware offsets instead.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250707141313.73169-1-brgl@bgdev.pl
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: rcar: Convert to DEFINE_SIMPLE_DEV_PM_OPS()

Convert the Renesas R-Car GPIO driver from SIMPLE_DEV_PM_OPS() to
DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr().  This lets us drop the
check for CONFIG_PM_SLEEP, and reduces kernel size in case CONFIG_PM or
CONFIG_PM_SLEEP is disabled, while increasing build coverage.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/e201140426daacaa799d73e2f76bfd96b6f5718f.1752086619.git.geert+renesas@glider.be
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: sim: allow to mark simulated lines as invalid

Add a new line-level, boolean property to the gpio-sim configfs
interface called 'valid'. It's set by default and the user can unset it
to make the line be included in the standard `gpio-reserved-ranges`
property when the chip is registered with GPIO core. This allows users
to specify which lines should not be available for requesting as GPIOs.

Link: https://lore.kernel.org/r/20250630130358.40352-1-brgl@bgdev.pl
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: pca953x: Add support for TI TCA6418

The TI TCA6418 is a 18-channel I2C I/O expander. It is slightly
different to other models from the same family, such as TCA6416,
but has enough in common with them to make it work with just a
few tweaks, which are explained in the code's documentation.

Signed-off-by: Maria Garcia <mariagarcia7293@gmail.com>
Link: https://lore.kernel.org/r/20250703205740.45385-3-mariagarcia7293@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

dt-bindings: gpio: pca95xx: add TI TCA6418

The TCA6418E is a 18-channel I2C I/O expander with integrated ESD
protection.

Signed-off-by: Maria Garcia <mariagarcia7293@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20250703205740.45385-2-mariagarcia7293@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: arizona: Remove redundant pm_runtime_mark_last_busy() calls

pm_runtime_put_autosuspend(), pm_runtime_put_sync_autosuspend(),
pm_runtime_autosuspend() and pm_request_autosuspend() now include a call
to pm_runtime_mark_last_busy(). Remove the now-reduntant explicit call to
pm_runtime_mark_last_busy().

Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://lore.kernel.org/r/20250704075408.3217690-1-sakari.ailus@linux.intel.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Merge tag 'pm-runtime-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm into gpio/for-next

Runtime PM updates related to autosuspend for 6.17

Make several autosuspend functions mark last busy stamp and update
the documentation accordingly (Sakari Ailus).

gpio: tps6586x: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250702-gpiochip-set-rv-gpio-round3-v1-12-0d23be74f71d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: tps65219: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250702-gpiochip-set-rv-gpio-round3-v1-11-0d23be74f71d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: tps65218: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250702-gpiochip-set-rv-gpio-round3-v1-10-0d23be74f71d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: tps65218: remove unneeded callbacks

GPIO core can handle output-only chips that don't implement the get()
and direction_input() callbacks. There's no need to provide dummy
implementation of the latter in the driver so drop it.

Link: https://lore.kernel.org/r/20250702-gpiochip-set-rv-gpio-round3-v1-9-0d23be74f71d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: tps65086: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250702-gpiochip-set-rv-gpio-round3-v1-8-0d23be74f71d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: tpic2810: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250702-gpiochip-set-rv-gpio-round3-v1-7-0d23be74f71d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: tpic2810: remove unneeded callbacks

GPIO core can handle output-only chips that don't implement the get()
and direction_input() callbacks. There's no need to provide dummy
implementation of the latter in the driver so drop it.

Link: https://lore.kernel.org/r/20250702-gpiochip-set-rv-gpio-round3-v1-6-0d23be74f71d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: timberdale: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250702-gpiochip-set-rv-gpio-round3-v1-5-0d23be74f71d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: thunderx: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250702-gpiochip-set-rv-gpio-round3-v1-4-0d23be74f71d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: tegra: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250702-gpiochip-set-rv-gpio-round3-v1-3-0d23be74f71d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: tegra186: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250702-gpiochip-set-rv-gpio-round3-v1-2-0d23be74f71d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: tegra186: don't call the set() callback directly

Drivers should not dereference GPIO chip callbacks directly. Move the
module's set() function higher to make it available to the
direction_output() callback and call it instead.

Link: https://lore.kernel.org/r/20250702-gpiochip-set-rv-gpio-round3-v1-1-0d23be74f71d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: en7523: use new generic GPIO chip API

Convert the driver to using the new generic GPIO chip interfaces from
linux/gpio/generic.h.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250702-gpio-mmio-rework-v2-8-6b77aab684d8@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: 74xx-mmio: use new generic GPIO chip API

Convert the driver to using the new generic GPIO chip interfaces from
linux/gpio/generic.h.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250702-gpio-mmio-rework-v2-7-6b77aab684d8@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: cadence: use new generic GPIO chip API

Convert the driver to using the new generic GPIO chip interfaces from
linux/gpio/generic.h.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250702-gpio-mmio-rework-v2-6-6b77aab684d8@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: cadence: use lock guards

Simplify the code by using lock guards for the bgpio_lock. While at it:
move the gpio/driver.h include into its correct place alphabetically.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250702-gpio-mmio-rework-v2-5-6b77aab684d8@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: clps711x: use new generic GPIO chip API

Convert the driver to using the new generic GPIO chip interfaces from
linux/gpio/generic.h.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250702-gpio-mmio-rework-v2-4-6b77aab684d8@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: mxc: use new generic GPIO chip API

Convert the driver to using the new generic GPIO chip interfaces from
linux/gpio/generic.h.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250702-gpio-mmio-rework-v2-3-6b77aab684d8@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: mxc: use lock guards for the generic GPIO chip lock

Simplify the code by using lock guards for the bgpio_lock.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250702-gpio-mmio-rework-v2-2-6b77aab684d8@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: generic: add new generic GPIO chip API

As the first step in removing the fields specific to the gpio-mmio
module from struct gpio_chip, we introduce a new set of generic GPIO
chip interfaces that are meant to replace the existing bgpio_ ones.

The new initialization function - gpio_generic_chip_init() - takes a
configuration structure as argument instead of 9 separate parameters.
This will allow easy extension if needed in the future. We hide the
locking details behind a set of helpers in order to be able to move the
raw spinlock out of struct gpio_chip without the users noticing.

For now, the new APIs just wrap the existing ones. Once all users have
been converted to the new interfaces, we'll pull them into gpio-mmio and
implement them in a backward-compatible way while also moving all fields
specific to the generic GPIO chip into struct gpio_generic_chip.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250702-gpio-mmio-rework-v2-1-6b77aab684d8@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Merge tag 'gpio-mmio-remove-bgpio-pdata-for-v6.17-rc1' into gpio/for-next

Immutable branch between GPIO, MFD and ARM-SoC for v6.17-rc1

Remove struct bgpio_pdata after converting its users to generic device
properties.

gpio: mmio: remove struct bgpio_pdata

With no more users, we can now remove struct bgpio_pdata. Move the
relevant bits from bgpio_parse_fw() into bgpio_pdev_probe() while
maintaining the logical ordering (get flags before calling
bgpio_init()).

Link: https://lore.kernel.org/r/20250701-gpio-mmio-pdata-v2-6-ebf34d273497@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

ARM: s3c: crag6410: use generic device properties for gpio-mmio

The GPIO device in crag6410 is registered with struct bgpio_pdata passed
as platform_data to the gpio-mmio driver. We want to remove the
bgpio_pdata from the kernel and the gpio-mmio driver is now also able to
get the relevant values from the software node. Set up device properties
and switch to using platform_device_info to register the device as
platform_add_devices() doesn't allow us to pass device properties to the
driver model.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20250701-gpio-mmio-pdata-v2-5-ebf34d273497@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

ARM: omap1: ams-delta: use generic device properties for gpio-mmio

The two latch GPIO devices in ams-delta are registered with struct
bgpio_pdata passed as platform_data to the gpio-mmio driver. We want to
remove the bgpio_pdata from the kernel and the gpio-mmio driver is now
also able to get the relevant values from the software node. Set up
device properties and switch to using platform_device_info to register
the devices as platform_add_devices() doesn't allow us to pass device
properties to the driver model.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Link: https://lore.kernel.org/r/20250701-gpio-mmio-pdata-v2-4-ebf34d273497@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

mfd: vexpress-sysreg: set-up software nodes for gpio-mmio

Replace struct bgpio_pdata - that we plan to remove - with software
nodes containing properties encoding the same values thatr can now be
parsed by gpio-mmio.

Acked-by: Lee Jones <lee@kernel.org>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250701-gpio-mmio-pdata-v2-3-ebf34d273497@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: mmio: get chip label and GPIO base from device properties

Ahead of removing struct bgpio_pdata support from the gpio-mmio generic
module, let's add support for getting the relevant values from generic
device properties. "label" is a semi-standardized property in some GPIO
drivers so let's go with it. There's no standard "base" property, so
let's use the name "gpio-mmio,base" to tie it to this driver
specifically. The number of GPIOs will be retrieved using
gpiochip_get_ngpios() so there's no need to look it up in the software
node.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250701-gpio-mmio-pdata-v2-2-ebf34d273497@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: mmio: drop the big-endian platform device variant

There are no more users of the "basic-mmio-gpio-be" platform device ID
in the kernel. We can safely drop it.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250701-gpio-mmio-pdata-v2-1-ebf34d273497@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: reg: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the legacy generic
gpio-reg module to using them. We have to update the two legacy ARM
platforms that use it at the same time as they call the set_multiple()
callbacks directly (they shouldn't but it's old technical debt I
suppose).

Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20250623-gpiochip-set-rv-gpio-v3-1-90f0e170a846@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: palmas: Allow building as a module

The driver works fine as a module, so allowing building as such. This
adds an exit handler to support module unload.

Signed-off-by: Aaron Kling <webgeek1234@gmail.com>
Link: https://lore.kernel.org/r/20250702-gpio-palmas-gpio-v4-1-26ba48252f27@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Merge tag 'ib-mfd-gpio-input-pwm-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into gpio/for-next

Immutable branch between MFD, GPIO, Input and PWM due for the v6.17 merge window

gpio: tc3589x: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250625-gpiochip-set-rv-gpio-round2-v1-12-bc110a3b52ff@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: tangier: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20250625-gpiochip-set-rv-gpio-round2-v1-11-bc110a3b52ff@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: syscon: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250625-gpiochip-set-rv-gpio-round2-v1-10-bc110a3b52ff@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: stp-xway: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250625-gpiochip-set-rv-gpio-round2-v1-9-bc110a3b52ff@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: stmpe: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250625-gpiochip-set-rv-gpio-round2-v1-8-bc110a3b52ff@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: sprd: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Link: https://lore.kernel.org/r/20250625-gpiochip-set-rv-gpio-round2-v1-7-bc110a3b52ff@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: spear-spics: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250625-gpiochip-set-rv-gpio-round2-v1-6-bc110a3b52ff@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: spear-spics: remove unneeded callbacks

GPIO core can handle output-only chips that don't implement the get()
and direction_input() callbacks. There's no need to provide dummy
implementations in the driver so drop them.

Link: https://lore.kernel.org/r/20250625-gpiochip-set-rv-gpio-round2-v1-5-bc110a3b52ff@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: siox: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Acked-by: Thorsten Scherer <t.scherer@eckelmann.de>
Link: https://lore.kernel.org/r/20250625-gpiochip-set-rv-gpio-round2-v1-4-bc110a3b52ff@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: sch: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20250625-gpiochip-set-rv-gpio-round2-v1-3-bc110a3b52ff@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: sch311x: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250625-gpiochip-set-rv-gpio-round2-v1-2-bc110a3b52ff@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: sama5d2-piobu: use new GPIO line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Link: https://lore.kernel.org/r/20250625-gpiochip-set-rv-gpio-round2-v1-1-bc110a3b52ff@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

gpio: pisosr: remove unneeded direction_output() callback

GPIO core can handle input-only chips that don't implement the
direction_output() callback at all. There's no need for the driver to
provide a dummy implementation so drop it.

Link: https://lore.kernel.org/r/20250625081222.12744-1-brgl@bgdev.pl
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

mfd: adp5585: Add support for a reset pin

Make sure to perform an Hardware reset during probe  if the pin is given
in FW.

Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20250701-dev-adp5589-fw-v7-20-b1fcfe9e9826@analog.com
Signed-off-by: Lee Jones <lee@kernel.org>

dt-bindings: mfd: adp5585: document reset gpio

Add a reset gpio property. Note that for the adp5585-01 models, the
reset pin is used as the additional ROW5 which means there's no reset.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20250701-dev-adp5589-fw-v7-19-b1fcfe9e9826@analog.com
Signed-off-by: Lee Jones <lee@kernel.org>

mfd: adp5585: Support getting vdd regulator

Make sure we get and enable the VDD supply (if available).

Reviewed-by: Lee Jones <lee@kernel.org>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20250701-dev-adp5589-fw-v7-18-b1fcfe9e9826@analog.com
Signed-off-by: Lee Jones <lee@kernel.org>

Input: adp5589: remove the driver

The adp5589 support is based on legacy platform data and there's no
upstream platform using this device.
Moreover, recently, with

commit
480a8ad683d7 ("mfd: adp5585: Add Analog Devices ADP5585 core support")

we overlapped support for the adp5585 device (gpiochip part of it) but
since it actually makes sense for the device to be supported under MFD, we
can complement it and add the keymap support for it (properly based on FW
properties). And that is what

commit
04840c5363a6 ("Input: adp5585: Add Analog Devices ADP5585/89 support")

is doing.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20250701-dev-adp5589-fw-v7-17-b1fcfe9e9826@analog.com
Signed-off-by: Lee Jones <lee@kernel.org>

Input: adp5585: Add Analog Devices ADP5585/89 support

The ADP5585 is a 10/11 input/output port expander with a built in keypad
matrix decoder, programmable logic, reset generator, and PWM generator.
This driver supports the keyboard function using the platform device
registered by the core MFD driver.

The ADP5589 has 19 pins and also features an unlock function.

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20250701-dev-adp5589-fw-v7-16-b1fcfe9e9826@analog.com
Signed-off-by: Lee Jones <lee@kernel.org>

gpio: adp5585: support gpi events

Add support for adding GPIs to the event FIFO. This is done by adding
irq_chip support. Like this, one can use the input gpio_keys driver as a
"frontend" device and input handler.

As part of this change, we now implement .request() and .free() as we can't
blindly consume all available pins as GPIOs (example: some pins can be
used for forming a keymap matrix).

Also note that the number of pins can now be obtained from the parent,
top level device. Hence the 'max_gpio' variable can be removed.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20250701-dev-adp5589-fw-v7-15-b1fcfe9e9826@analog.com
Signed-off-by: Lee Jones <lee@kernel.org>

mfd: adp5585: Add support for input devices

The ADP558x family supports a built in keypad matrix decoder which can
be added as an Input device. In order to both support the Input and the
GPIO device, we need to create a bitmap of the supported pins and track
their usage since they can either be used as GPIOs (GPIs) or as part of
the keymap.

We also need to mark special pins busy in case some features are being
used (ex: pwm or reset events).

Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20250701-dev-adp5589-fw-v7-14-b1fcfe9e9826@analog.com
Signed-off-by: Lee Jones <lee@kernel.org>

mfd: adp5585: Support reset and unlock events

The ADP558x family of devices can be programmed to respond to some
especial events, In case of the unlock events, one can lock the keypad
and use KEYS or GPIs events to unlock it. For the reset events, one can
again use a combinations of GPIs/KEYs in order to generate an event that
will trigger the device to generate an output reset pulse.

Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20250701-dev-adp5589-fw-v7-13-b1fcfe9e9826@analog.com
Signed-off-by: Lee Jones <lee@kernel.org>

mfd: adp5585: Add support for event handling

These devices are capable of generate FIFO based events based on KEY or
GPI presses. Add support for handling these events. This is in
preparation of adding full support for keymap and gpis based events.

Reviewed-by: Lee Jones <lee@kernel.org>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20250701-dev-adp5589-fw-v7-12-b1fcfe9e9826@analog.com
Signed-off-by: Lee Jones <lee@kernel.org>

dt-bindings: mfd: adp5585: add properties for input events

Add properties related to input events. These devices can act as
keyboards and can support events either via a keymap Matrix or through
GPIs. Note that the device needs to be an interrupt controller for GPIs
based events.

We specifically need a property specifying the pins used by the keymap
matrix since these devices have no requirement for rows and columns to be
contiguous without holes which is enforced by the standard input
properties.

Reviewed-by: "Rob Herring (Arm)" <robh@kernel.org>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20250701-dev-adp5589-fw-v7-11-b1fcfe9e9826@analog.com
Signed-off-by: Lee Jones <lee@kernel.org>

pwm: adp5585: add support for adp5589

Add support for the adp5589 I/O expander. From a PWM point of view it is
pretty similar to adp5585. Main difference is the address
of registers meaningful for configuring the PWM.

Acked-by: Uwe Kleine-König <ukleinek@kernel.org>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20250701-dev-adp5589-fw-v7-10-b1fcfe9e9826@analog.com
Signed-off-by: Lee Jones <lee@kernel.org>

gpio: adp5585: add support for the adp5589 expander

Support the adp5589 I/O expander which supports up to 19 pins. We need
to add a chip_info based struct since accessing register "banks"
and "bits" differs between devices.

Also some register addresses are different.

While at it move ADP558X_GPIO_MAX defines to the main header file and
rename them. That information will be needed by the top level device in
a following change.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20250701-dev-adp5589-fw-v7-9-b1fcfe9e9826@analog.com
Signed-off-by: Lee Jones <lee@kernel.org>

mfd: adp5585: Add a per chip reg struture

There are some differences in the register map between the devices.
Hence, add a register structure per device. This will be needed in
following patches.

On top of that adp5585_fill_regmap_config() is renamed and reworked so
that the current struct adp5585_info act as template (they indeed
contain all the different data between variants) which can then be
complemented depending on the device (as identified by the id register).
This is done like this since a lot of the data is pretty much the same
between variants of the same device.

Reviewed-by: Lee Jones <lee@kernel.org>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20250701-dev-adp5589-fw-v7-8-b1fcfe9e9826@analog.com
Signed-off-by: Lee Jones <lee@kernel.org>

mfd: adp5585: Add support for adp5589

The ADP5589 is a 19 I/O port expander with built-in keypad matrix decoder,
programmable logic, reset generator, and PWM generator.

Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20250701-dev-adp5589-fw-v7-7-b1fcfe9e9826@analog.com
Signed-off-by: Lee Jones <lee@kernel.org>

mfd: adp5585: Refactor how regmap defaults are handled

The only thing changing between variants is the regmap default
registers. Hence, instead of having a regmap configuration for every
variant (duplicating lots of fields), add a chip info type of structure
with a regmap ID to identify which defaults to use and populate
regmap_config at runtime given a template plus the id. Also note that
between variants, the defaults can be the same which means the chip info
structure can be used in more than one compatible.

This will also make it simpler adding new chips with more variants.

Also note that the chip info structures are deliberately not const as
they will also contain lots of members that are the same between the
different devices variants and so we will fill those at runtime.

Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20250701-dev-adp5589-fw-v7-6-b1fcfe9e9826@analog.com
Signed-off-by: Lee Jones <lee@kernel.org>

dt-bindings: mfd: adp5585: document adp5589 I/O expander

The ADP5589 is a 19 I/O port expander with built-in keypad matrix decoder,
programmable logic, reset generator, and PWM generator.

We can't really have adp5589 devices fallback to adp5585 (which have
less pins) because there are some significant differences in the register
map.

Reviewed-by: "Rob Herring (Arm)" <robh@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20250701-dev-adp5589-fw-v7-5-b1fcfe9e9826@analog.com
Signed-off-by: Lee Jones <lee@kernel.org>

mfd: adp5585: Make use of MFD_CELL_NAME()

Use the helper macro. No functional change intended...

Whilst we're at it, now seems like a good time to update the Copyright.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20250701-dev-adp5589-fw-v7-4-b1fcfe9e9826@analog.com
Signed-off-by: Lee Jones <lee@kernel.org>