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2025-07-15gpio: pca953x: use regmap_update_bits() to improve performanceHugo Villeneuve
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>
2025-07-15gpio: zynqmp-modepin: set line value in .direction_output()Bartosz Golaszewski
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>
2025-07-15gpio: zynqmp-modepin: 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/20250709-gpiochip-set-rv-gpio-remaining-v1-18-b8950f69618d@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-07-15gpio: zynq: 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/20250709-gpiochip-set-rv-gpio-remaining-v1-17-b8950f69618d@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-07-15gpio: zevio: 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/20250709-gpiochip-set-rv-gpio-remaining-v1-16-b8950f69618d@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-07-15gpio: xtensa: 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/20250709-gpiochip-set-rv-gpio-remaining-v1-15-b8950f69618d@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-07-15gpio: xtensa: remove unneeded .set() callbackBartosz Golaszewski
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>
2025-07-15gpio: xra1403: 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/20250709-gpiochip-set-rv-gpio-remaining-v1-13-b8950f69618d@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-07-15gpio: xlp: 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/20250709-gpiochip-set-rv-gpio-remaining-v1-12-b8950f69618d@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-07-15gpio: xlp: drop unneeded ngpio checksBartosz Golaszewski
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>
2025-07-15gpio: xilinx: 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/20250709-gpiochip-set-rv-gpio-remaining-v1-10-b8950f69618d@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-07-15gpio: xgene: 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/20250709-gpiochip-set-rv-gpio-remaining-v1-9-b8950f69618d@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-07-15gpio: wm8994: 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: 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>
2025-07-15gpio: wm8350: 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: 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>
2025-07-15gpio: wm831x: 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: 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>
2025-07-15gpio: winbond: 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/20250709-gpiochip-set-rv-gpio-remaining-v1-5-b8950f69618d@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-07-15gpio: wcd934x: 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/20250709-gpiochip-set-rv-gpio-remaining-v1-3-b8950f69618d@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-07-15gpio: wcd934x: check the return value of regmap_update_bits()Bartosz Golaszewski
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>
2025-07-15gpio: vx855: 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/20250709-gpiochip-set-rv-gpio-remaining-v1-1-b8950f69618d@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-07-13gpio: virtio: 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: 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>
2025-07-13gpio: viperboard: 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-v1-11-35668aaaf6d2@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-07-13gpio: uniphier: 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: 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>
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>
2025-07-07gpio: 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>
2025-07-07dt-bindings: gpio: pca95xx: add TI TCA6418Maria Garcia
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>
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>
2025-07-07Merge tag 'pm-runtime-6.17-rc1' of ↵Bartosz Golaszewski
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).
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>
generated by cgit (git 2.34.1) at 2025-09-11 10:28:11 +0000