kernel/linux.git/drivers/gpio, branch master

Merge tag 'soc-drivers-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2026-04-17T03:34:34+00:00

Pull SoC driver updates from Arnd Bergmann: "The driver updates again are all over the place with many minor fixes going into platform specific code. The most notable changes are: - Support for Microchip pic64gx system controllers - Work on cleaning up devicetree bindings for SoC drivers, and converting them into the new format - Lots of smaller changes for Qualcomm SoC drivers, including support for a number of newly supported chips - reset controller API cleanups and a new driver for Cix Sky1 - Reworks of the Tegra PMC and CBB drivers, along with a change to how individual Tegra SoCs get selected in Kconfig and BPMP firmware driver updates including a refresh of the ABI header to match the version used by firmware - STM32 updates to the firewall bus driver and support for the debug bus through OP-TEE - SCMI firmware driver improvements for reliability, in particular for dealing with broken firmware interrupts - Memory driver updates for Tegra, and a patch to remove the unused Baikal T1 driver" * tag 'soc-drivers-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (193 commits) firmware: arm_ffa: Use the correct buffer size during RXTX_MAP firmware: qcom: scm: Allow QSEECOM on Lenovo IdeaCentre Mini X clk: spear: fix resource leak in clk_register_vco_pll() reset: rzv2h-usb2phy: Add support for VBUS mux controller registration reset: rzv2h-usb2phy: Convert to regmap API dt-bindings: reset: renesas,rzv2h-usb2phy: Document RZ/G3E USB2PHY reset dt-bindings: reset: renesas,rzv2h-usb2phy: Add '#mux-state-cells' property soc: microchip: add mpfs gpio interrupt mux driver dt-bindings: soc: microchip: document PolarFire SoC's gpio interrupt mux gpio: mpfs: Add interrupt support soc: qcom: ubwc: add helpers to get programmable values soc: qcom: ubwc: add helper to get min_acc length firmware: qcom: scm: Register gunyah watchdog device soc: qcom: socinfo: Add SoC ID for SA8650P dt-bindings: arm: qcom,ids: Add SoC ID for SA8650P firmware: qcom: scm: Allow QSEECOM on Mahua CRD soc: qcom: wcnss: simplify allocation of req soc: qcom: pd-mapper: Add support for Eliza soc: qcom: aoss: compare against normalized cooling state soc: qcom: llcc: fix v1 SB syndrome register offset ...

Merge tag 'media/v7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

2026-04-15T15:32:10+00:00

Pull media updates from Mauro Carvalho Chehab: - new CSI tegra support, covering Tegra20 and Tegra30 - new camera sensor drivers: T4ka3 and ov2732 - m88ds3103: add 3103c chip support - uvcvideo: add support for Intel RealSense D436/D555 and P010 pixel format - synopsys csi2rx: add i.MX93 support - imx8-isi: add i.MX95 support - imx8mq-mipi-csi2: add i.MX8ULP support - dw100: add V4L2 requests support - support for DTV devices from Hauppauge got some improvements - media staging: dropped starfive-camss driver - media docs: document multi-committers model and improve maint profile - media core: - add v4l2_subdev_get_frame_desc_passthrough() helper - improve error handling in fwnode parsing - lots of driver fixes, cleanups and improvements * tag 'media/v7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (251 commits) Revert "media: cx231xx: add USB ID 2040:8360 for Hauppauge WinTV-HVR-935" media: synopsys: csi2rx: add i.MX93 support media: dt-bindings: add NXP i.MX93 compatible string media: synopsys: csi2rx: Use enum and u32 array for register offsets media: synopsys: csi2rx: implement .get_frame_desc() callback media: synopsys: csi2rx: only check errors from devm_clk_bulk_get_all() media: synopsys: csi2rx: use devm_reset_control_get_optional_exclusive() media: i2c: imx283: add support for non-continuous MIPI clock mode media: i2c: ov08d10: add support for 24 MHz input clock media: i2c: ov08d10: add support for reset and power management media: i2c: ov08d10: add support for binding via device tree dt-bindings: media: i2c: document Omnivision OV08D10 CMOS image sensor media: i2c: ov08d10: add missing newline to prints media: i2c: ov08d10: fix some typos in comments media: i2c: ov08d10: remove duplicate register write media: i2c: ov08d10: fix image vertical start setting media: i2c: ov08d10: fix runtime PM handling in probe staging: media: ipu7: Update TODO media: Add t4ka3 camera sensor driver media: i2c: Add ov2732 image sensor driver ...

Merge tag 'gpio-updates-for-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

2026-04-14T03:10:58+00:00

Pull gpio updates from Bartosz Golaszewski: "For this merge window we have two new drivers: support for GPIO-signalled ACPI events on Intel platforms and a generic GPIO-over-pinctrl driver using the ARM SCMI protocol for controlling pins. Several things have been reworked in GPIO core: we unduplicated GPIO hog handling, reduced the number of SRCU locks and dereferences, improved support for software-node-based lookup and removed more legacy code after converting remaining users to modern alternatives. There's also a number of driver reworks and refactoring, documentation updates, some bug-fixes and new tests. GPIO core: - defer probe on software node lookups when the remote software node exists but has not been registered as a firmware node yet - unify GPIO hog handling by moving code duplicated in OF and ACPI modules into GPIO core and allow setting up hogs with software nodes - allow matching GPIO controllers by secondary firmware node if matching by primary does not succeed - demote deferral warnings to debug level as they are quite normal when using software nodes which don't support fw_devlink yet - disable the legacy GPIO character device uAPI v1 supprt in Kconfig by default - rework several core functions in preparation for the upcoming Revocable helper library for protecting resources against sudden removal, this reduces the number of SRCU dereferences in GPIO core - simplify file descriptor logic in GPIO character device code by using FD_PREPARE() - introduce a header defining symbols used by both GPIO consumers and providers to avoid having to include provider-specific headers from drivers which only consume GPIOs - replace snprintf() with strscpy() where formatting is not required New drivers: - add the gpio-by-pinctrl generic driver using the ARM SCMI protocol to control GPIOs (along with SCMI changes pulled from the pinctrl tree) - add a driver providing support for handling of platform events via GPIO-signalled ACPI events (used on Intel Nova Lake and later platforms) Driver changes: - extend the gpio-kempld driver with support for more recent models, interrupts and setting/getting multiple values at once - improve interrupt handling in gpio-brcmstb - add support for multi-SoC systems in gpio-tegra186 - make sure we return correct values from the .get() callbacks in several GPIO drivers by normalizing any values other than 0, 1 or negative error numbers - use flexible arrays in several drivers to reduce the number of required memory allocations - simplify synchronous waiting for virtual drivers to probe and remove the dedicated, a bit overengineered helper library dev-sync-probe - remove unneeded Kconfig dependencies on OF_GPIO in several drivers and subsystems - convert the two remaining users of of_get_named_gpio() to using GPIO descriptors and remove the (no longer used) function along with the header that declares it - add missing includes in gpio-mmio - shrink and simplify code in gpio-max732x by using guard(mutex) - remove duplicated code handling the 'ngpios' property from gpio-ts4800, it's already handled in GPIO core - use correct variable type in gpio-aspeed - add support for a new model in gpio-realtek-otto - allow to specify the active-low setting of simulated hogs over the configfs interface (in addition to existing devicetree support) in gpio-sim Bug fixes: - clear the OF_POPULATED flag on hog nodes in GPIO chip remove path on OF systems - fix resource leaks in error path in gpiochip_add_data_with_key() - drop redundant device reference in gpio-mpsse Tests: - add selftests for use-after-free cases in GPIO character device code DT bindings: - add a DT binding document for SCMI based, gpio-over-pinctrl devices - fix interrupt description in microchip,mpfs-gpio - add new compatible for gpio-realtek-otto - describe the resets of the mpfs-gpio controller - fix maintainer's email in gpio-delay bindings - remove the binding document for cavium,thunder-8890 as the corresponding device is bound over PCI and not firmware nodes Documentation: - update the recommended way of converting legacy boards to using software nodes for GPIO description - describe GPIO line value semantics - misc updates to kerneldocs Misc: - convert OMAP1 ams-delta board to using GPIO hogs described with software nodes" * tag 'gpio-updates-for-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (79 commits) gpio: swnode: defer probe on references to unregistered software nodes dt-bindings: gpio: cavium,thunder-8890: Remove DT binding Documentation: gpio: update the preferred method for using software node lookup gpio: gpio-by-pinctrl: s/used to do/is used to do/ gpio: aspeed: fix unsigned long int declaration gpio: rockchip: convert to dynamic GPIO base allocation gpio: remove dev-sync-probe gpio: virtuser: stop using dev-sync-probe gpio: aggregator: stop using dev-sync-probe gpio: sim: stop using dev-sync-probe gpio: Add Intel Nova Lake ACPI GPIO events driver gpiolib: Make deferral warnings debug messages gpiolib: fix hogs with multiple lines gpio: fix up CONFIG_OF dependencies gpio: gpio-by-pinctrl: add pinctrl based generic GPIO driver gpio: dt-bindings: Add GPIO on top of generic pin control firmware: arm_scmi: Allow PINCTRL_REQUEST to return EOPNOTSUPP pinctrl: scmi: ignore PIN_CONFIG_PERSIST_STATE pinctrl: scmi: Delete PIN_CONFIG_OUTPUT_IMPEDANCE_OHMS support pinctrl: scmi: Add SCMI_PIN_INPUT_VALUE ...

gpio: tegra: return -ENOMEM on allocation failure in probe

2026-04-10T07:01:24+00:00

devm_kzalloc() failure in tegra_gpio_probe() returns -ENODEV, which indicates "no such device". The correct error code for a memory allocation failure is -ENOMEM. Signed-off-by: Samasth Norway Ananda Link: https://patch.msgid.link/20260409185853.2163034-1-samasth.norway.ananda@oracle.com Signed-off-by: Bartosz Golaszewski

gpio: swnode: defer probe on references to unregistered software nodes

2026-04-09T13:59:30+00:00

fwnode_property_get_reference_args() now returns -ENOTCONN when called on a software node referencing another software node which has not yet been registered as a firmware node. It makes sense to defer probe in this situation as the node will most likely be registered later on and we'll be able to resolve the reference eventually. Change the behavior of swnode_find_gpio() to return -EPROBE_DEFER if the software node reference resolution returns -ENOTCONN. Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/20260407-swnode-unreg-retcode-v4-2-1b2f0725eb9c@oss.qualcomm.com Signed-off-by: Bartosz Golaszewski

gpio: tegra: fix irq_release_resources calling enable instead of disable

2026-04-09T08:35:33+00:00

tegra_gpio_irq_release_resources() erroneously calls tegra_gpio_enable() instead of tegra_gpio_disable(). When IRQ resources are released, the GPIO configuration bit (CNF) should be cleared to deconfigure the pin as a GPIO. Leaving it enabled wastes power and can cause unexpected behavior if the pin is later reused for an alternate function via pinctrl. Fixes: 66fecef5bde0 ("gpio: tegra: Convert to gpio_irq_chip") Signed-off-by: Samasth Norway Ananda Link: https://patch.msgid.link/20260407210247.1737938-1-samasth.norway.ananda@oracle.com Signed-off-by: Bartosz Golaszewski

gpio: bd72720: handle missing regmap

2026-04-08T07:14:42+00:00

Currently the probe does not check whether getting the regmap succeeded. This can cause crash when regmap is used, if it wasn't successfully obtained. Failing to get the regmap is unlikely, especially since this driver is expected to be kicked by the MFD driver only after registering the regmap - but it is still better to handle this gracefully. Signed-off-by: Matti Vaittinen Fixes: e7eef0bd4075 ("regulator: bd71828-regulator.c: Fix LDON-HEAD mode") Link: https://patch.msgid.link/5bfffee380863bcf24f3062e48094c8eb7b1342f.1775565381.git.mazziesaccount@gmail.com Signed-off-by: Bartosz Golaszewski

gpio: gpio-by-pinctrl: s/used to do/is used to do/

2026-04-07T12:36:45+00:00

Add missing "is" to the driver's help text ("used to do" has a completely different meaning). Fixes: 7671f4949a6c9111 ("gpio: gpio-by-pinctrl: add pinctrl based generic GPIO driver") Signed-off-by: Geert Uytterhoeven Reviewed-by: Linus Walleij Link: https://patch.msgid.link/b1ecb31a37f8e35447122554a38985cb6240eb11.1775556619.git.geert+renesas@glider.be [Bartosz: tweak the help text even more] Signed-off-by: Bartosz Golaszewski

gpio: aspeed: fix unsigned long int declaration

2026-04-07T10:32:28+00:00

Replace "unsigned long int" with "unsigned long" to follow Linux kernel coding style. No functional change intended. Signed-off-by: Chen Jung Ku Link: https://patch.msgid.link/20260405144803.31358-1-ku.loong@gapp.nthu.edu.tw Signed-off-by: Bartosz Golaszewski

gpio: rockchip: convert to dynamic GPIO base allocation

2026-04-07T10:32:28+00:00

This driver is used on device tree based platform. Use dynamic GPIO numberspace base to suppress the warning: gpio gpiochip0: Static allocation of GPIO base is deprecated, use dynamic allocation. gpio gpiochip1: Static allocation of GPIO base is deprecated, use dynamic allocation. gpio gpiochip2: Static allocation of GPIO base is deprecated, use dynamic allocation. gpio gpiochip3: Static allocation of GPIO base is deprecated, use dynamic allocation. gpio gpiochip4: Static allocation of GPIO base is deprecated, use dynamic allocation. Signed-off-by: Shawn Lin Reviewed-by: Linus Walleij Link: https://patch.msgid.link/1774864401-177149-1-git-send-email-shawn.lin@rock-chips.com Signed-off-by: Bartosz Golaszewski