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2025-05-15gpio: grgpio: Make irq_chip immutablePeng Fan
Kernel warns about mutable irq_chips: "not an immutable chip, please consider fixing!" Constify grgpio_irq_chip, flag the irq_chip as IRQCHIP_IMMUTABLE, add the new helper functions, and call the appropriate gpiolib functions. Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250509-gpio-v1-2-639377c98288@nxp.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-05-15gpio: bcm-kona: make irq_chip immutablePeng Fan
The gpiolib is moving to make irq_chip immutable, otherwise there is warning: "not an immutable chip, please consider fixing it!" The bcm_gpio_irq_chip already has irq hooks configured correctly, bcm_kona_gpio_irq_mask/bcm_kona_gpio_irq_unmask calls gpiochip_disable_irq/ gpiochip_enable_irq, and bcm_kona_gpio_irq_reqres/irq_release_resources calls gpiochip_reqres_irq/gpiochip_relres_irq. So just need to flag it as IRQCHIP_IMMUTABLE. Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250509-gpio-v1-1-639377c98288@nxp.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-05-15gpio: TODO: add item about GPIO drivers reading struct gpio_chip::baseAhmad Fatoum
drivers/pinctrl/pinctrl-at91.c uses struct gpio_chip::base to find out which bit to set in a register: dev_dbg(npct->dev, "enable pin %u as GPIO\n", offset); mask = 1 << (offset - chip->base); This adds a non-obvious dependency on the global numberspace from the GPIO driver itself, even if all consumers use the descriptor API. More such instances may exist and will need to be fixed in the quest for removal of the global numberspace, so add a reminder about it to the TODO list. Link: https://lore.kernel.org/all/1d00c056-3d61-4c22-bedd-3bae0bf1ddc4@pengutronix.de/ Suggested-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.kernel.org/r/20250507-gpio-chip-base-readback-v1-1-ade56e38480b@pengutronix.de Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-05-15gpio: mxc: configure dynamic GPIO base for CONFIG_GPIO_SYSFS=nAhmad Fatoum
i.MX GPIO numbering has been deterministic since commit 7e6086d9e54a ("gpio/mxc: specify gpio base for device tree probe"), a year after device tree support was first added back in 2011. Reverting to dynamically allocated GPIO base now would break most systems making use of the sysfs API. These systems will be eventually broken by the removal of the sysfs API, but that would result in GPIO scripts not working instead of essentially toggling at random according to probe order, which would happen if we unconditionally set base to -1. Yet, the warning is annoying and has resulted in many rejected attempts to remove it over the years[1][2][3]. As the i.MX GPIO driver is device tree only, GPIO_SYSFS is the only consumer of the deterministic GPIO numbering. Let's therefore restrict the static base and the warning that comes with it to configurations with CONFIG_GPIO_SYSFS enabled. [1]: https://lore.kernel.org/all/20230226205319.1013332-1-dario.binacchi@amarulasolutions.com/ [2]: https://lore.kernel.org/all/20230506085928.933737-2-haibo.chen@nxp.com/ [3]: https://lore.kernel.org/all/20241121145515.3087855-1-catalin.popescu@leica-geosystems.com/ Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250507-b4-imx-gpio-base-warning-v2-1-d43d09e2c6bf@pengutronix.de Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-05-14dt-bindings: gpio: tegra186: Add gpio-rangesAaron Kling
Add optional gpio-ranges property. Signed-off-by: Aaron Kling <webgeek1234@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250429-tegra186-pinctrl-v1-2-722c7c42394e@gmail.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-05-13gpio: ml-ioh: 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/20250506-gpiochip-set-rv-gpio-part3-v1-12-0fbdea5a9667@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-05-13gpio: mc33880: 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/20250506-gpiochip-set-rv-gpio-part3-v1-11-0fbdea5a9667@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-05-13gpio: mb86s7x: 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/20250506-gpiochip-set-rv-gpio-part3-v1-10-0fbdea5a9667@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-05-13gpio: max77620: 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/20250506-gpiochip-set-rv-gpio-part3-v1-9-0fbdea5a9667@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-05-13gpio: max732x: 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/20250506-gpiochip-set-rv-gpio-part3-v1-8-0fbdea5a9667@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-05-13gpio: max730x: 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/20250506-gpiochip-set-rv-gpio-part3-v1-7-0fbdea5a9667@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-05-13gpio: max3191x: remove unused callbacksBartosz Golaszewski
This driver is input-only and as such doesn't need to define empty set() and direction_output() callbacks. Remove them. Link: https://lore.kernel.org/r/20250506-gpiochip-set-rv-gpio-part3-v1-6-0fbdea5a9667@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-05-13gpio: madera: 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/20250506-gpiochip-set-rv-gpio-part3-v1-5-0fbdea5a9667@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-05-13gpio: lpc32xx: 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/20250506-gpiochip-set-rv-gpio-part3-v1-4-0fbdea5a9667@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-05-13gpio: lpc18xx: 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/20250506-gpiochip-set-rv-gpio-part3-v1-3-0fbdea5a9667@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-05-13gpio: lp87565: 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/20250506-gpiochip-set-rv-gpio-part3-v1-2-0fbdea5a9667@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-05-13gpio: lp873x: 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/20250506-gpiochip-set-rv-gpio-part3-v1-1-0fbdea5a9667@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-05-13Merge tag 'ib-mfd-gpio-nvmem-v6.16' of ↵Bartosz Golaszewski
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into gpio/for-next Immutable branch between MFD, GPIO and NVMEM due for the v6.16 merge window
2025-05-09nvmem: max77759: Add Maxim MAX77759 NVMEM driverAndré Draszik
The Maxim MAX77759 is a companion PMIC for USB Type-C applications and includes Battery Charger, Fuel Gauge, temperature sensors, USB Type-C Port Controller (TCPC), NVMEM, and a GPIO expander. This driver exposes the non volatile memory using the platform device registered by the core MFD driver. Signed-off-by: André Draszik <andre.draszik@linaro.org> Acked-by: Srinivas Kandagatla <srini@kernel.org> Acked-by: Peter Griffin <peter.griffin@linaro.org> Link: https://lore.kernel.org/r/20250509-max77759-mfd-v10-3-962ac15ee3ef@linaro.org Signed-off-by: Lee Jones <lee@kernel.org>
2025-05-09gpio: max77759: Add Maxim MAX77759 gpio driverAndré Draszik
The Maxim MAX77759 is a companion PMIC for USB Type-C applications and includes Battery Charger, Fuel Gauge, temperature sensors, USB Type-C Port Controller (TCPC), NVMEM, and a GPIO expander. This driver supports the GPIO functions using the platform device registered by the core MFD driver. Signed-off-by: André Draszik <andre.draszik@linaro.org> Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Acked-by: Peter Griffin <peter.griffin@linaro.org> Link: https://lore.kernel.org/r/20250509-max77759-mfd-v10-2-962ac15ee3ef@linaro.org Signed-off-by: Lee Jones <lee@kernel.org>
2025-05-09mfd: max77759: Add Maxim MAX77759 core driverAndré Draszik
The Maxim MAX77759 is a companion PMIC for USB Type-C applications and includes Battery Charger, Fuel Gauge, temperature sensors, USB Type-C Port Controller (TCPC), NVMEM, and a GPIO expander. Fuel Gauge and TCPC have separate and independent I2C addresses, register maps, and interrupt lines and are therefore excluded from the MFD core device driver here. The GPIO and NVMEM interfaces are accessed via specific commands to the built-in microprocessor. This driver implements an API that client drivers can use for accessing those. Signed-off-by: André Draszik <andre.draszik@linaro.org> Acked-by: Peter Griffin <peter.griffin@linaro.org> Link: https://lore.kernel.org/r/20250509-max77759-mfd-v10-1-962ac15ee3ef@linaro.org Signed-off-by: Lee Jones <lee@kernel.org>
2025-05-09dt-bindings: mfd: Add max77759 bindingAndré Draszik
The Maxim MAX77759 is a companion PMIC for USB Type-C applications and includes Battery Charger, Fuel Gauge, temperature sensors, USB Type-C Port Controller (TCPC), NVMEM, and a GPIO expander. This describes the top-level device. Signed-off-by: André Draszik <andre.draszik@linaro.org> Reviewed-by: "Rob Herring (Arm)" <robh@kernel.org> Link: https://lore.kernel.org/r/20250325-max77759-mfd-v6-3-c0870ca662ba@linaro.org Signed-off-by: Lee Jones <lee@kernel.org>
2025-05-09dt-bindings: nvmem: Add max77759 bindingAndré Draszik
The Maxim MAX77759 is a companion PMIC for USB Type-C applications and includes Battery Charger, Fuel Gauge, temperature sensors, USB Type-C Port Controller (TCPC), NVMEM, and a GPIO expander. This describes its storage module (NVMEM). Signed-off-by: André Draszik <andre.draszik@linaro.org> Reviewed-by: "Rob Herring (Arm)" <robh@kernel.org> Link: https://lore.kernel.org/r/20250325-max77759-mfd-v6-2-c0870ca662ba@linaro.org Signed-off-by: Lee Jones <lee@kernel.org>
2025-05-09dt-bindings: gpio: Add max77759 bindingAndré Draszik
The Maxim MAX77759 is a companion PMIC for USB Type-C applications and includes Battery Charger, Fuel Gauge, temperature sensors, USB Type-C Port Controller (TCPC), NVMEM, and a GPIO expander. This describes its GPIO module. Signed-off-by: André Draszik <andre.draszik@linaro.org> Reviewed-by: "Rob Herring (Arm)" <robh@kernel.org> Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Link: https://lore.kernel.org/r/20250325-max77759-mfd-v6-1-c0870ca662ba@linaro.org Signed-off-by: Lee Jones <lee@kernel.org>
2025-05-05gpio: blzp1600: remove incorrect pf_match_ptr()Arnd Bergmann
The blzp1600_gpio_of_match is defined unconditionally and can always be referenced by the driver, so don't use of_match_ptr() and avoid this warning: drivers/gpio/gpio-blzp1600.c:263:34: error: 'blzp1600_gpio_of_match' defined but not used [-Werror=unused-const-variable=] 263 | static const struct of_device_id blzp1600_gpio_of_match[] = { Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20250502203721.2117186-1-arnd@kernel.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-04-30gpio: lp3943: use new 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: Peng Fan <peng.fan@nxp.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250423-gpiochip-set-rv-gpio-part2-v1-12-b22245cde81a@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-04-30gpio: loongson: use new 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: Peng Fan <peng.fan@nxp.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250423-gpiochip-set-rv-gpio-part2-v1-11-b22245cde81a@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-04-30gpio: loongson-64bit: use new 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: Peng Fan <peng.fan@nxp.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250423-gpiochip-set-rv-gpio-part2-v1-10-b22245cde81a@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-04-30gpio: logicvc: use new 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: Peng Fan <peng.fan@nxp.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250423-gpiochip-set-rv-gpio-part2-v1-9-b22245cde81a@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-04-30gpio: ljca: use new 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: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250423-gpiochip-set-rv-gpio-part2-v1-8-b22245cde81a@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-04-30gpio: kempld: use new 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: Peng Fan <peng.fan@nxp.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250423-gpiochip-set-rv-gpio-part2-v1-7-b22245cde81a@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-04-30gpio: janz-ttl: use new 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: Peng Fan <peng.fan@nxp.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250423-gpiochip-set-rv-gpio-part2-v1-6-b22245cde81a@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-04-30gpio: it87: use new 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: Peng Fan <peng.fan@nxp.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250423-gpiochip-set-rv-gpio-part2-v1-5-b22245cde81a@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-04-30gpio: imx-scu: use new 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: Peng Fan <peng.fan@nxp.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250423-gpiochip-set-rv-gpio-part2-v1-4-b22245cde81a@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-04-30gpio: imx-scu: destroy the mutex in detach pathBartosz Golaszewski
Use devm_mutex_init() in order to clean up after the mutex debug data in detach and error path. Reviewed-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250423-gpiochip-set-rv-gpio-part2-v1-3-b22245cde81a@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-04-30gpio: imx-scu: use lock guardsBartosz Golaszewski
Simplify the code by using lock guards from cleanup.h with the driver's mutex. Reviewed-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250423-gpiochip-set-rv-gpio-part2-v1-2-b22245cde81a@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-04-30gpio: imx-scu: don't check the GPIO rangeBartosz Golaszewski
Core GPIO code already does this for drivers, no need to duplicate the check. Reviewed-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250423-gpiochip-set-rv-gpio-part2-v1-1-b22245cde81a@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-04-28gpiolib: devres: Finish the conversion to use devm_add_action()Andy Shevchenko
With a recently added helper we can complete the conversion of the GPIOLIB code to use devm_add_action() in all suitable cases. So do this. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20250220162238.2738038-4-andriy.shevchenko@linux.intel.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-04-28Merge tag 'gpiod-devm-is-action-added-for-v6.16-rc1' into gpio/for-nextBartosz Golaszewski
Immutable tag for the driver core tree to pull from devres: Move devm_*_action*() APIs to devres.h devres: Add devm_is_action_added() helper
2025-04-28devres: Add devm_is_action_added() helperAndy Shevchenko
In some code we would like to know if the action in device managed resources was added by devm_add_action() family of calls. Introduce a helper for that. Reviewed-by: Raag Jadav <raag.jadav@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Zijun Hu <quic_zijuhu@quicinc.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20250220162238.2738038-3-andriy.shevchenko@linux.intel.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-04-28devres: Move devm_*_action*() APIs to devres.hAndy Shevchenko
We have a newly created header linux/device/devres.h that gathers device managed APIs, so users won't need to include entire device.h for only these ones. Move devm_*_action*() APIs to devres.h as well. Reviewed-by: Raag Jadav <raag.jadav@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Zijun Hu <quic_zijuhu@quicinc.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20250220162238.2738038-2-andriy.shevchenko@linux.intel.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-04-23gpio: pca953x: Add support for level-triggered interruptsPotin Lai
Adds support for level-triggered interrupts in the PCA953x GPIO expander driver. Previously, the driver only supported edge-triggered interrupts, which could lead to missed events in scenarios where an interrupt condition persists until it is explicitly cleared. By enabling level-triggered interrupts, the driver can now detect and respond to sustained interrupt conditions more reliably. Signed-off-by: Potin Lai <potin.lai.pt@gmail.com> Link: https://lore.kernel.org/r/20250409-gpio-pca953x-level-triggered-irq-v3-1-7f184d814934@gmail.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-04-23gpio: vf610: Allow building as a moduleJindong Yue
Support for building it as a module for use on the Android platform, because the Android kernel(GKI) doesn't contain board-specific drivers, it requires that these drivers be built as a module and loaded into the system. Signed-off-by: Jindong Yue <jindong.yue@nxp.com> Link: https://lore.kernel.org/r/20250416062605.1948856-1-jindong.yue@nxp.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-04-22gpio: Restrict GPIO_ICH to compile testing with HAS_IOPORTNathan Chancellor
When building gpio-ich.c for a platform that does not have IO port access like s390, there are several errors due to the use of inl() and outl() throughout the driver: drivers/gpio/gpio-ich.c: In function 'ichx_read_bit': include/asm-generic/io.h:578:14: error: call to '_inl' declared with attribute error: inl() requires CONFIG_HAS_IOPORT Only allow compile testing when the targeted platform selects HAS_IOPORT so that there are no compile time errors. Fixes: f3592d252f77 ("gpio: ich: enable building with COMPILE_TEST=y") Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202504171941.g1yXja0j-lkp@intel.com/ Signed-off-by: Nathan Chancellor <nathan@kernel.org> Link: https://lore.kernel.org/r/20250418-gpio-ich-fix-build-without-ioport-v1-1-83fc753438ec@kernel.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-04-17gpiolib: Remove redundant assignment of return variableAndy Shevchenko
In some functions the returned variable is assigned to 0 and then reassigned to the actual value. Remove redundant assignments. In one case make it more clear that the assignment is not needed. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20250416095645.2027695-9-andriy.shevchenko@linux.intel.com Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2025-04-17gpiolib: Reuse return variable in gpiod_to_irq()Andy Shevchenko
There are two variables for the same used in the gpiod_to_irq(). Replace the second by reusing the function top-level one. While at it, refactor the branch to have less lines of code. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20250416095645.2027695-8-andriy.shevchenko@linux.intel.com Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2025-04-17gpiolib: Call validate_desc() when VALIDATE_DESC() can't be usedAndy Shevchenko
Call validate_desc() directly when VALIDATE_DESC() can't be used. It will print additional information useful for debugging. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20250416095645.2027695-7-andriy.shevchenko@linux.intel.com Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2025-04-17gpiolib: Move validate_desc() and Co upper in the codeAndy Shevchenko
Move validate_desc() and Co upper in the code to be able to use in the further changes. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20250416095645.2027695-6-andriy.shevchenko@linux.intel.com Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2025-04-17gpiolib: Revert "Don't WARN on gpiod_put() for optional GPIO"Andy Shevchenko
No need to double check the pointer for NULL since gpiod_free() is using VALIDATE_DESC_VOID() which simply returns in that case. This reverts commit 1d7765ba15aca68f3bc52f59434c1c34855bbb54. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20250416095645.2027695-5-andriy.shevchenko@linux.intel.com Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2025-04-17gpiolib: Print actual error when descriptor contains an error pointerAndy Shevchenko
Print the actual error when descriptor contains an error pointer. This might help debugging those rare cases. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20250416095645.2027695-4-andriy.shevchenko@linux.intel.com Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
generated by cgit (git 2.34.1) at 2025-09-11 08:36:01 +0000