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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>
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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>
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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>
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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>
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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>
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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).
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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Immutable branch between GPIO, MFD and ARM-SoC for v6.17-rc1
Remove struct bgpio_pdata after converting its users to generic device
properties.
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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