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path: root/drivers/gpio
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2025-07-13gpio: twl6040: set line value in .direction_out()Bartosz Golaszewski
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>
2025-07-13gpio: twl6040: use new GPIO line value setter callbacksBartosz Golaszewski
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>
2025-07-13gpio: twl4030: use new GPIO line value setter callbacksBartosz Golaszewski
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>
2025-07-13gpio: ts4900: use new GPIO line value setter callbacksBartosz Golaszewski
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>
2025-07-13gpio: tqmx86: use new GPIO line value setter callbacksBartosz Golaszewski
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>
2025-07-13gpio: tps68470: use new GPIO line value setter callbacksBartosz Golaszewski
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>
2025-07-13gpio: tps65912: use new GPIO line value setter callbacksBartosz Golaszewski
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>
2025-07-13gpio: tps65912: check the return value of regmap_update_bits()Bartosz Golaszewski
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>
2025-07-13gpio: tps65910: use new GPIO line value setter callbacksBartosz Golaszewski
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>
2025-07-13gpiolib: don't use GPIO global numbers in debugfs outputBartosz Golaszewski
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>
2025-07-11gpio: rcar: Convert to DEFINE_SIMPLE_DEV_PM_OPS()Geert Uytterhoeven
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>
2025-07-09gpio: sim: allow to mark simulated lines as invalidBartosz Golaszewski
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>
2025-07-09gpio: of: initialize local variable passed to the .of_xlate() callbackAlexander Stein
of_flags is passed down to GPIO chip's xlate function, so ensure this one is properly initialized as - if the xlate callback does nothing with it - we may end up with various configuration errors like: gpio-720 (enable): multiple pull-up, pull-down or pull-disable enabled, invalid configuration Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com> Link: https://lore.kernel.org/r/20250708083829.658051-1-alexander.stein@ew.tq-group.com [Bartosz: tweaked the commit message] Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-07-07gpio: pca953x: Add support for TI TCA6418Maria Garcia
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>
2025-07-07gpio: arizona: Remove redundant pm_runtime_mark_last_busy() callsSakari Ailus
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>
2025-07-07gpio: tps6586x: use new GPIO line value setter callbacksBartosz Golaszewski
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>
2025-07-07gpio: tps65219: use new GPIO line value setter callbacksBartosz Golaszewski
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>
2025-07-07gpio: tps65218: use new GPIO line value setter callbacksBartosz Golaszewski
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>
2025-07-07gpio: tps65218: remove unneeded callbacksBartosz Golaszewski
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>
2025-07-07gpio: tps65086: use new GPIO line value setter callbacksBartosz Golaszewski
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>
2025-07-07gpio: tpic2810: use new GPIO line value setter callbacksBartosz Golaszewski
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>
2025-07-07gpio: tpic2810: remove unneeded callbacksBartosz Golaszewski
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>
2025-07-07gpio: timberdale: use new GPIO line value setter callbacksBartosz Golaszewski
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>
2025-07-07gpio: thunderx: use new GPIO line value setter callbacksBartosz Golaszewski
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>
2025-07-07gpio: tegra: use new GPIO line value setter callbacksBartosz Golaszewski
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>
2025-07-07gpio: tegra186: use new GPIO line value setter callbacksBartosz Golaszewski
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>
2025-07-07gpio: tegra186: don't call the set() callback directlyBartosz Golaszewski
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>
2025-07-07gpio: en7523: use new generic GPIO chip APIBartosz Golaszewski
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>
2025-07-07gpio: 74xx-mmio: use new generic GPIO chip APIBartosz Golaszewski
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>
2025-07-07gpio: cadence: use new generic GPIO chip APIBartosz Golaszewski
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>
2025-07-07gpio: cadence: use lock guardsBartosz Golaszewski
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>
2025-07-07gpio: clps711x: use new generic GPIO chip APIBartosz Golaszewski
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>
2025-07-07gpio: mxc: use new generic GPIO chip APIBartosz Golaszewski
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>
2025-07-07gpio: mxc: use lock guards for the generic GPIO chip lockBartosz Golaszewski
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>
2025-07-07Merge tag 'gpio-mmio-remove-bgpio-pdata-for-v6.17-rc1' into gpio/for-nextBartosz Golaszewski
Immutable branch between GPIO, MFD and ARM-SoC for v6.17-rc1 Remove struct bgpio_pdata after converting its users to generic device properties.
2025-07-07gpio: mmio: remove struct bgpio_pdataBartosz Golaszewski
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>
2025-07-07gpio: mmio: get chip label and GPIO base from device propertiesBartosz Golaszewski
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>
2025-07-07gpio: mmio: drop the big-endian platform device variantBartosz Golaszewski
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>
2025-07-07gpio: reg: use new GPIO line value setter callbacksBartosz Golaszewski
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>
2025-07-04gpiolib: fix performance regression when using gpio_chip_get_multiple()Hugo Villeneuve
commit 74abd086d2ee ("gpiolib: sanitize the return value of gpio_chip::get_multiple()") altered the value returned by gc->get_multiple() in case it is positive (> 0), but failed to return for other cases (<= 0). This may result in the "if (gc->get)" block being executed and thus negates the performance gain that is normally obtained by using gc->get_multiple(). Fix by returning the result of gc->get_multiple() if it is <= 0. Also move the "ret" variable to the scope where it is used, which as an added bonus fixes an indentation error introduced by the aforementioned commit. Fixes: 74abd086d2ee ("gpiolib: sanitize the return value of gpio_chip::get_multiple()") Cc: stable@vger.kernel.org Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com> Link: https://lore.kernel.org/r/20250703191829.2952986-1-hugo@hugovil.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-07-03gpio: palmas: Allow building as a moduleAaron Kling
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>
2025-07-03Merge tag 'ib-mfd-gpio-input-pwm-v6.17' of ↵Bartosz Golaszewski
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
2025-07-02gpio: tc3589x: use new GPIO line value setter callbacksBartosz Golaszewski
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>
2025-07-02gpio: tangier: use new GPIO line value setter callbacksBartosz Golaszewski
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>
2025-07-02gpio: syscon: use new GPIO line value setter callbacksBartosz Golaszewski
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>
2025-07-02gpio: stp-xway: use new GPIO line value setter callbacksBartosz Golaszewski
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>
2025-07-02gpio: stmpe: use new GPIO line value setter callbacksBartosz Golaszewski
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>
2025-07-02gpio: sprd: use new GPIO line value setter callbacksBartosz Golaszewski
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>
2025-07-02gpio: spear-spics: use new GPIO line value setter callbacksBartosz Golaszewski
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>
2025-07-02gpio: spear-spics: remove unneeded callbacksBartosz Golaszewski
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>
generated by cgit v1.2.3 (git 2.39.1) at 2025-07-31 10:05:43 +0000