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path: root/drivers/gpio/Kconfig
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2025-05-22gpio: timberdale: select GPIOLIB_IRQCHIPPeng Fan
This driver uses gpiochip_irq_reqres() and gpiochip_irq_relres() which are only built with GPIOLIB_IRQCHIP=y. Add the missing Kconfig select. Fixes: 2993d2dd8ff4 ("gpio: timberdale: Make irq_chip immutable") Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20250522-gpio-fix-v1-4-98ceae7c4c3c@nxp.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-05-22gpio: lpc18xx: select GPIOLIB_IRQCHIPPeng Fan
This driver uses gpiochip_irq_reqres() and gpiochip_irq_relres() which are only built with GPIOLIB_IRQCHIP=y. Add the missing Kconfig select. Fixes: 289e42df1358 ("gpio: lpc18xx: Make irq_chip immutable") Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20250522-gpio-fix-v1-3-98ceae7c4c3c@nxp.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-05-22gpio: grgpio: select GPIOLIB_IRQCHIPPeng Fan
This driver uses gpiochip_irq_reqres() and gpiochip_irq_relres() which are only built with GPIOLIB_IRQCHIP=y. Add the missing Kconfig select. Fixes: a30be40bf1d4 ("gpio: grgpio: Make irq_chip immutable") Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20250522-gpio-fix-v1-2-98ceae7c4c3c@nxp.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-05-22gpio: bcm-kona: select GPIOLIB_IRQCHIPPeng Fan
This driver uses gpiochip_irq_reqres() and gpiochip_irq_relres() which are only built with GPIOLIB_IRQCHIP=y. Add the missing Kconfig select. Fixes: 7b04f98027af ("gpio: bcm-kona: make irq_chip immutable") Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20250522-gpio-fix-v1-1-98ceae7c4c3c@nxp.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-05-21gpio: davinci: select GPIOLIB_IRQCHIPPeng Fan
This driver uses gpiochip_irq_reqres() and gpiochip_irq_relres() which are only built with GPIOLIB_IRQCHIP=y. Add the missing Kconfig select. Fixes: 3f50bb3124d7 ("gpio: davinci: Make irq_chip immutable") Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202505210606.PudPm5pC-lkp@intel.com/ Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20250521072048.1053190-1-peng.fan@oss.nxp.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-05-20gpio: mpc8xxx: select GPIOLIB_IRQCHIPBartosz Golaszewski
This driver uses gpiochip_irq_reqres() and gpiochip_irq_relres() which are only built with GPIOLIB_IRQCHIP=y. Add the missing Kconfig select. Fixes: 7688a54d5b53 ("gpio: mpc8xxx: Make irq_chip immutable") Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202505180309.1nosQMkI-lkp@intel.com/ Acked-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20250519-gpio-irq-kconfig-fixes-v1-2-fe6ba1c6116d@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-05-20gpio: pxa: select GPIOLIB_IRQCHIPBartosz Golaszewski
This driver uses gpiochip_irq_reqres() and gpiochip_irq_relres() which are only built with GPIOLIB_IRQCHIP=y. Add the missing Kconfig select. Fixes: 20117cf426b6 ("gpio: pxa: Make irq_chip immutable") Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202505181429.mzyIatOU-lkp@intel.com/ Acked-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20250519-gpio-irq-kconfig-fixes-v1-1-fe6ba1c6116d@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
2025-05-09gpio: 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>
2025-04-23gpio: 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>
2025-04-17gpio: spacemit: add support for K1 SoCYixun Lan
Implement GPIO functionality which capable of setting pin as input, output. Also, each pin can be used as interrupt which support rising, falling, or both edge type trigger. Reviewed-by: Alex Elder <elder@riscstar.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Yixun Lan <dlan@gentoo.org> Link: https://lore.kernel.org/r/20250412-03-k1-gpio-v8-2-1c6862d272ec@gentoo.org Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2025-04-17gpio: tn48m: enable building the module with COMPILE_TEST=yBartosz Golaszewski
Extend the build coverage by allowing to build the module with COMPILE_TEST enabled. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250408-gpio-compile-test-v1-6-140e108e9392@linaro.org Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2025-04-17gpio: rtd: enable building the module with COMPILE_TEST=yBartosz Golaszewski
Extend the build coverage by allowing to build the module with COMPILE_TEST enabled. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250408-gpio-compile-test-v1-4-140e108e9392@linaro.org Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2025-04-17gpio: pl061: enable building the module with COMPILE_TEST=yBartosz Golaszewski
Extend the build coverage by allowing to build the module with COMPILE_TEST enabled. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250408-gpio-compile-test-v1-3-140e108e9392@linaro.org Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2025-04-17gpio: msc313: enable building the module with COMPILE_TEST=yBartosz Golaszewski
Extend the build coverage by allowing to build the module with COMPILE_TEST enabled. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250408-gpio-compile-test-v1-2-140e108e9392@linaro.org Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2025-04-17gpio: zynq: enable building the modules with COMPILE_TEST=yBartosz Golaszewski
Extend the build coverage by allowing to build the modules with COMPILE_TEST enabled. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250408-gpio-compile-test-v1-1-140e108e9392@linaro.org Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2025-04-17gpio: ich: enable building with COMPILE_TEST=yBartosz Golaszewski
Extend the build coverage by allowing to build the module with COMPILE_TEST enabled. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250407-gpiochip-set-rv-gpio-part1-v1-11-78399683ca38@linaro.org Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2025-04-17gpio: htc-egpio: enable building with COMPILE_TEST=yBartosz Golaszewski
Extend the build coverage by allowing to build the module with COMPILE_TEST enabled. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250407-gpiochip-set-rv-gpio-part1-v1-9-78399683ca38@linaro.org Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2025-04-14gpio: GPIO_BLZP1600 should depend on ARCH_BLAIZEGeert Uytterhoeven
The Blaize BLZP1600 GPIO controller is only present on BLaize BLZP1600 SoCs. Hence add a dependency on ARCH_BLAIZE, to prevent asking the user about this driver when configuring a kernel without Blaize platform support. Fixes: 602ae04f56542d8e ("gpio: Enable Blaize BLZP1600 GPIO support") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Nikolaos Pasaloukos <nikolaos.pasaloukos@blaize.com> Link: https://lore.kernel.org/r/a75af4b623579a193b4a59350c063969aabb5b71.1744190524.git.geert+renesas@glider.be Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2025-04-09gpio: aggregator: introduce basic configfs interfaceKoichiro Den
The existing sysfs 'new_device' interface has several limitations: * No way to determine when GPIO aggregator creation is complete. * No way to retrieve errors when creating a GPIO aggregator. * No way to trace a GPIO line of an aggregator back to its corresponding physical device. * The 'new_device' echo does not indicate which virtual gpiochip<N> was created. * No way to assign names to GPIO lines exported through an aggregator. Introduce the new configfs interface for gpio-aggregator to address these limitations. It provides a more streamlined, modern, and extensible configuration method. For backward compatibility, the 'new_device' interface and its behavior is retained for now. This commit implements basic functionalities: /config/gpio-aggregator/<name-of-your-choice>/ /config/gpio-aggregator/<name-of-your-choice>/live /config/gpio-aggregator/<name-of-your-choice>/dev_name /config/gpio-aggregator/<name-of-your-choice>/<lineY>/ /config/gpio-aggregator/<name-of-your-choice>/<lineY>/key /config/gpio-aggregator/<name-of-your-choice>/<lineY>/offset /config/gpio-aggregator/<name-of-your-choice>/<lineY>/name Basic setup flow is: 1. Create a directory for a GPIO aggregator. 2. Create subdirectories for each line you want to instantiate. 3. In each line directory, configure the key and offset. The key/offset semantics are as follows: * If offset is >= 0: - key specifies the name of the chip this GPIO belongs to - offset specifies the line offset within that chip. * If offset is <0: - key needs to specify the GPIO line name. 4. Return to the aggregator's root directory and write '1' to the live attribute. For example, the command in the existing kernel doc: echo 'e6052000.gpio 19 e6050000.gpio 20-21' > new_device is equivalent to: mkdir /sys/kernel/config/gpio-aggregator/<custom-name> # Change <custom-name> to name of your choice (e.g. "aggr0") cd /sys/kernel/config/gpio-aggregator/<custom-name> mkdir line0 line1 line2 # Only "line<Y>" naming allowed. echo e6052000.gpio > line0/key echo 19 > line0/offset echo e6050000.gpio > line1/key echo 20 > line1/offset echo e6050000.gpio > line2/key echo 21 > line2/offset echo 1 > live The corresponding gpio_device id can be identified as follows: cd /sys/kernel/config/gpio-aggregator/<custom-name> ls -d /sys/devices/platform/`cat dev_name`/gpiochip* Also, via configfs, custom GPIO line name can be set like this: cd /sys/kernel/config/gpio-aggregator/<custom-name> echo "abc" > line1/name Signed-off-by: Koichiro Den <koichiro.den@canonical.com> Link: https://lore.kernel.org/r/20250407043019.4105613-5-koichiro.den@canonical.com [Bartosz: remove stray newlines] Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-04-07gpio: Enable Blaize BLZP1600 GPIO supportNikolaos Pasaloukos
Blaize BLZP1600 GPIO controller is provided by VeriSilicon Microelectronics based on the GPIO APB v0.2 design. It has 32 input/output ports which can be configured as edge or level triggered interrupts. It also provides a de-bounce feature. This controller is used on the Blaize BLZP1600 SoC. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Nikolaos Pasaloukos <nikolaos.pasaloukos@blaize.com> Link: https://lore.kernel.org/r/20250327-kernel-upstreaming-add_gpio_support-v2-2-bbe51f8d66da@blaize.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-03-17gpio: bt8xx: allow to build the module with COMPILE_TEST=yBartosz Golaszewski
Link: https://lore.kernel.org/r/20250310-gpiochip-set-conversion-v1-6-03798bb833eb@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-02-24gpio: vf610: Switch to gpio-mmioLinus Walleij
After adding a pinctrl flag to gpio-mmio we can use it for driving gpio-vf610. The existing code has the same semantics and the generic gpio-mmio, including reading from the data out register when the direction is set to input, and it can also handle the absence of the direction register better than the current driver: we get the direction from the shadow direction registers in gpio-mmio instead. Since gpio-mmio has an internal spinlock we can drop the direction-protecting spinlock from the driver. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Haibo Chen <haibo.chen@nxp.com> Tested-by: Haibo Chen <haibo.chen@nxp.com> Link: https://lore.kernel.org/r/20250219-vf610-mmio-v3-2-588b64f0b689@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-02-24gpio: virtuser: convert to use dev-sync-probe utilitiesKoichiro Den
Update gpio-virtuser to use the new dev-sync-probe helper functions for synchronized platform device creation, reducing code duplication. No functional change. Signed-off-by: Koichiro Den <koichiro.den@canonical.com> Link: https://lore.kernel.org/r/20250221133501.2203897-4-koichiro.den@canonical.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-02-24gpio: sim: convert to use dev-sync-probe utilitiesKoichiro Den
Update gpio-sim to use the new dev-sync-probe helper functions for synchronized platform device creation, reducing code duplication. No functional change. Signed-off-by: Koichiro Den <koichiro.den@canonical.com> Link: https://lore.kernel.org/r/20250221133501.2203897-3-koichiro.den@canonical.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-02-24gpio: introduce utilities for synchronous fake device creationKoichiro Den
Both gpio-sim and gpio-virtuser share a mechanism to instantiate a platform device, wait for probe completion, and retrieve the probe success or error status synchronously. With gpio-aggregator planned to adopt this approach for its configfs interface, it's time to factor out the common code. Add dev-sync-probe.[ch] to house helper functions used by all such implementations. No functional change. Signed-off-by: Koichiro Den <koichiro.den@canonical.com> Link: https://lore.kernel.org/r/20250221133501.2203897-2-koichiro.den@canonical.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-02-24Merge tag 'v6.14-rc4' of ↵Bartosz Golaszewski
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into HEAD Linux 6.14-rc4
2025-02-11gpio: 74x164: Remove unneeded dependency to OF_GPIOAndy Shevchenko
Remove unneeded dependency to OF_GPIO which driver does not use. Fixes: 3c7469514dbe ("gpio: 74x164: Make use of device properties") Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20250207151825.2122419-2-andriy.shevchenko@linux.intel.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-02-05gpio: GPIO_GRGPIO should depend on OFGeert Uytterhoeven
While the Aeroflex Gaisler GRGPIO driver has no build-time dependency on gpiolib-of, it supports only DT-based configuration, and is used only on DT systems. Hence add a dependency on OF, to prevent asking the user about this driver when configuring a kernel without DT support. Fixes: bc40668def384256 ("gpio: grgpio: drop Kconfig dependency on OF_GPIO") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Andreas Larsson <andreas@gaisler.com> Link: https://lore.kernel.org/r/db6da3d11bf850d89f199e5c740d8f133e38078d.1738760539.git.geert+renesas@glider.be Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-01-22Merge tag 'gpio-updates-for-v6.14-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull gpio updates from Bartosz Golaszewski: "Thanks to little activity in December, this is really tiny. Just a few updates to drivers and device-tree bindings. Driver improvements: - support a new model in gpio-mpc8xxx - refactor gpio-tqmx86 and add support for direction setting - allow building gpio-omap with COMPILE_TEST=y - use gpiochip_get_data() instead of dev_get_drvdata() in gpio-twl6040 - drop unued field from driver data in gpio-altera - use generic request/free callbacks in gpio-regmap for better integration with pinctrl - use dev_err_probe() where applicable in gpio-pca953x - use existing dedicated GPIO defines in gpio-tps65219 instead of custom ones DT bindings: - document a new model in fsl,qoriq-gpio - explain the chip's latch clock pin and how it works like chip-select in fairchild,74hc595 - enable the gpio-line-names property for gpio-brcmstb" * tag 'gpio-updates-for-v6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: gpio: regmap: Use generic request/free ops gpio: altera: Drop .mapped_irq from driver data gpio: mpc8xxx: Add MPC8314 support dt-bindings: gpio: fsl,qoriq-gpio: Add compatible string fsl,mpc8314-gpio dt-bindings: gpio: fairchild,74hc595: Document chip select vs. latch clock gpio: tps65219: Use existing kernel gpio macros gpio: pca953x: log an error when failing to get the reset GPIO dt-bindings: gpio: brcmstb: permit gpio-line-names property gpio: tqmx86: add support for changing GPIO directions gpio: tqmx86: introduce tqmx86_gpio_clrsetbits() helper gpio: tqmx86: use cleanup guards for spinlock gpio: tqmx86: consistently refer to IRQs by hwirq numbers gpio: tqmx86: add macros for interrupt configuration gpio: omap: allow building the module with COMPILE_TEST=y gpio: twl4030: use gpiochip_get_data
2024-12-12gpio: omap: allow building the module with COMPILE_TEST=yBartosz Golaszewski
For better build coverage, allow building the gpio-omap driver with COMPILE_TEST Kconfig option enabled. While at it: simplify the dependencies and drop the dependency on ARM as it's already implied by ARCH_OMAP. Reviewed-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Link: https://lore.kernel.org/r/20241205120610.40644-1-brgl@bgdev.pl Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-12-04gpio: GPIO_MVEBU should not default to y when compile-testingGeert Uytterhoeven
Merely enabling compile-testing should not enable additional functionality. Fixes: 956ee0c5c969c9ca ("gpio: mvebu: allow building the module with COMPILE_TEST=y") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/6b9e55dbf544297d5acf743f6fa473791ab10644.1733242798.git.geert+renesas@glider.be Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-11-18gpio: tegra186: Allow to enable driver on Tegra234Lars-Peter Clausen
Support for Tegra234 was added to the tegra186 driver in 1db9b241bb56 ( "gpio: tegra186: Add support for Tegra234"). But the driver is not selectable on Tegra234. Update the Kconfig entry to allow the driver to be enabled on Tegra234. Enable the driver by default on Tegra 234 as well, similar to the other platforms it supports. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20241113162939.886242-1-lars@metafoo.de Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-11-06gpio: mpfs: add polarfire soc gpio supportLewis Hanly
Add a driver to support the Polarfire SoC gpio controller. Interrupt controller support is unavailable for now and will be added at a later date. Signed-off-by: Lewis Hanly <lewis.hanly@microchip.com> Co-developed-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20241104-tiny-evaluate-9336020b4b6a@spud Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-11-04gpio: altera: Drop legacy-of-mm-gpiochip.h headerAndy Shevchenko
Remove legacy-of-mm-gpiochip.h header file, replace of_* functions and structs with appropriate alternatives. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20241031101836.2434308-1-andriy.shevchenko@linux.intel.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-10-22gpio: grgpio: drop Kconfig dependency on OF_GPIOBartosz Golaszewski
This driver has no build-time dependency on gpiolib-of so remove the Kconfig switch. Link: https://lore.kernel.org/r/20241015131832.44678-1-brgl@bgdev.pl Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-10-17gpio: fold the Kconfig prompt into the option type for GPIO CDEVBartosz Golaszewski
The 'if !EXPERT' bit will work fine if it follows the 'bool "foobar"' declaration. No need to have separate entries for it. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20241014110707.101320-1-brgl@bgdev.pl Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-10-14gpio: davinci: allow building the module with COMPILE_TEST=yBartosz Golaszewski
Make it possible to build the module when COMPILE_TEST is enabled for better build coverage. Stop using of_match_ptr() to avoid build warnings. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20241007103440.38416-1-brgl@bgdev.pl Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-10-14gpio: mvebu: drop dependency on OF_GPIOBartosz Golaszewski
This driver doesn't really depend on interfaces from OF_GPIO so the Kconfig dependency can be dropped. Suggested-by: Uwe Kleine-König <ukleinek@kernel.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Uwe Kleine-König <ukleinek@kernel.org> Link: https://lore.kernel.org/r/20241008081555.23465-1-brgl@bgdev.pl Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-10-14gpio: add support for FTDI's MPSSE as GPIOMary Strodl
FTDI FT2232H is a USB to GPIO chip. Sealevel produces some devices with this chip. FT2232H presents itself as a composite device with two interfaces (each is an "MPSSE"). Each MPSSE has two banks (high and low) of 8 GPIO each. I believe some MPSSE's have only one bank, but I don't know how to identify them (I don't have any for testing) and as a result are unsupported for the time being. Additionally, this driver provides software polling-based interrupts for edge detection. For the Sealevel device I have to test with, this works well because there is hardware debouncing. From talking to Sealevel's people, this is their preferred way to do edge detection. Signed-off-by: Mary Strodl <mstrodl@csh.rit.edu> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20241009131131.1618329-1-mstrodl@csh.rit.edu Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-10-10Merge tag 'ib-mfd-gpio-i2c-watchdog-v6.13' of ↵Bartosz Golaszewski
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/lee/mfd into gpio/for-next Immutable branch between MFD, GPIO, I2C and Watchdog due for the v6.13 merge window
2024-10-09gpio: Congatec Board Controller gpio driverThomas Richard
Add gpio support for the Congatec Board Controller. This Board Controller has 14 GPIO pins. The driver is probed by the Congatec Board Controller MFD driver. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Thomas Richard <thomas.richard@bootlin.com> Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Link: https://lore.kernel.org/r/20241001-congatec-board-controller-v3-2-39ceceed5c47@bootlin.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-10-08gpio: xilinx: drop dependency on GPIO_OFBartosz Golaszewski
This driver doesn't really depend on gpiolib-of being built and can be compiled without it. Acked-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/20240930144804.75068-1-brgl@bgdev.pl Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-10-08gpio: mvebu: allow building the module with COMPILE_TEST=yBartosz Golaszewski
Make it possible to build the module when COMPILE_TEST is enabled for better build coverage. Link: https://lore.kernel.org/r/20240930091111.32010-1-brgl@bgdev.pl Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-08-01gpio: adp5585: Add Analog Devices ADP5585 supportHaibo Chen
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 GPIO function using the platform device registered by the core MFD driver. The driver is derived from an initial implementation from NXP, available in commit 451f61b46b76 ("MLK-25917-2 gpio: adp5585-gpio: add adp5585-gpio support") in their BSP kernel tree. It has been extensively rewritten. Signed-off-by: Haibo Chen <haibo.chen@nxp.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Co-developed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://lore.kernel.org/r/20240722121100.2855-4-laurent.pinchart@ideasonboard.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-07-15Merge tag 'gpio-updates-for-v6.11-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull gpio updates from Bartosz Golaszewski: "The majority of added lines are two new modules: the GPIO virtual consumer module that improves our ability to add automated tests for the kernel API and the "sloppy" logic analyzer module that uses the GPIO API to implement a coarse-grained debugging tool for useful for remote development. Other than that we have the usual assortment of various driver extensions, improvements to the core GPIO code, DT-bindings and other documentation updates as well as an extension to the interrupt simulator: GPIOLIB core: - rework kfifo handling rework in the character device code - improve the labeling of GPIOs requested as interrupts and show more info on interrupt-only GPIOs in debugfs - remove unused APIs - unexport interfaces that are only used from the core GPIO code - drop the return value from gpiochip_set_desc_names() as it cannot fail - move a string array definition out of a header and into a specific compilation unit - convert the last user of gpiochip_get_desc() other than GPIO core to using a safer alternative - use array_index_nospec() where applicable New drivers: - add a "virtual GPIO consumer" module that allows requesting GPIOs from actual hardware and driving tests of the in-kernel GPIO API from user-space over debugfs - add a GPIO-based "sloppy" logic analyzer module useful for "first glance" debugging on remote boards Driver improvements: - add support for a new model to gpio-pca953x - lock GPIOs as interrupts in gpio-sim when the lines are requested as irqs via the simulator domain + some other minor improvements - improve error reporting in gpio-syscon - convert gpio-ath79 to using dynamic GPIO base and range - use pcibios_err_to_errno() for converting PCIBIOS error codes to errno vaues in gpio-amd8111 and gpio-rdc321x - allow building gpio-brcmstb for the BCM2835 architecture DT bindings: - convert DT bindings for lsi,zevio, mpc8xxx, and atmel to DT schema - document new properties for aspeed,gpio, fsl,qoriq-gpio and gpio-vf610 - document new compatibles for pca953x and fsl,qoriq-gpio Documentation: - document stricter behavior of the GPIO character device uAPI with regards to reconfiguring requested line without direction set - clarify the effect of the active-low flag on line values and edges - remove documentation for the legacy GPIO API in order to stop tempting people to use it - document the preference for using pread() for reading edge events in the sysfs API Other: - add an extended initializer to the interrupt simulator allowing to specify a number of callbacks callers can use to be notified about irqs being requested and released" * tag 'gpio-updates-for-v6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (41 commits) gpio: mc33880: Convert comma to semicolon gpio: virtuser: actually use the "trimmed" local variable dt-bindings: gpio: convert Atmel GPIO to json-schema gpio: virtuser: new virtual testing driver for the GPIO API dt-bindings: gpio: vf610: Allow gpio-line-names to be set gpio: sim: lock GPIOs as interrupts when they are requested genirq/irq_sim: add an extended irq_sim initializer dt-bindings: gpio: fsl,qoriq-gpio: Add compatible string fsl,ls1046a-gpio gpiolib: unexport gpiochip_get_desc() gpio: add sloppy logic analyzer using polling Documentation: gpio: Reconfiguration with unset direction (uAPI v2) Documentation: gpio: Reconfiguration with unset direction (uAPI v1) dt-bindings: gpio: fsl,qoriq-gpio: add common property gpio-line-names gpio: ath79: convert to dynamic GPIO base allocation pinctrl: da9062: replace gpiochip_get_desc() with gpio_device_get_desc() gpiolib: put gpio_suffixes in a single compilation unit Documentation: gpio: Clarify effect of active low flag on line edges Documentation: gpio: Clarify effect of active low flag on line values gpiolib: Remove data-less gpiochip_add() function gpio: sim: use devm_mutex_init() ...
2024-07-09gpio: virtuser: new virtual testing driver for the GPIO APIBartosz Golaszewski
The GPIO subsystem used to have a serious problem with undefined behavior and use-after-free bugs on hot-unplug of GPIO chips. This can be considered a corner-case by some as most GPIO controllers are enabled early in the boot process and live until the system goes down but most GPIO drivers do allow unbind over sysfs, many are loadable modules that can be (force) unloaded and there are also GPIO devices that can be dynamically detached, for instance CP2112 which is a USB GPIO expender. Bugs can be triggered both from user-space as well as by in-kernel users. We have the means of testing it from user-space via the character device but the issues manifest themselves differently in the kernel. This is a proposition of adding a new virtual driver - a configurable GPIO consumer that can be configured over configfs (similarly to gpio-sim) or described on the device-tree. This driver is aimed as a helper in spotting any regressions in hot-unplug handling in GPIOLIB. Link: https://lore.kernel.org/r/20240708142912.120570-1-brgl@bgdev.pl Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-07-01gpio: add sloppy logic analyzer using pollingWolfram Sang
This is a sloppy logic analyzer using GPIOs. It comes with a script to isolate a CPU for polling. While this is definitely not a production level analyzer, it can be a helpful first view when remote debugging. Read the documentation for details. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20240620094159.6785-2-wsa+renesas@sang-engineering.com [Bartosz: moved the Kconfig entry into a different category] Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-06-03gpio: tqmx86: fix typo in Kconfig labelGregor Herburger
Fix description for GPIO_TQMX86 from QTMX86 to TQMx86. Fixes: b868db94a6a7 ("gpio: tqmx86: Add GPIO from for this IO controller") Signed-off-by: Gregor Herburger <gregor.herburger@tq-group.com> Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/e0e38c9944ad6d281d9a662a45d289b88edc808e.1717063994.git.matthias.schiffer@ew.tq-group.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
generated by cgit (git 2.34.1) at 2025-07-15 17:35:04 +0000