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2025-10-04Merge tag 'usb-6.18-rc1' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB / Thunderbolt updates from Greg KH: "Here is the big set of USB and thunderbolt drivers for 6.18-rc1. It was another normal development cycle, with lots of the usual drivers getting updates: - Thunderbolt driver cleanups and additions - dwc3 driver updates - dwc2 driver updates - typec driver updates - xhci driver updates and additions - offload USB engine updates for better power management - unused tracepoint removals - usb gadget fixes and updates as more users start to rely on these drivers instead of the "old" function gadget drivers - new USB device ids - other minor driver USB driver updates - new USB I/O driver framework and driver additions" The last item, the usb i/o driver, has an i2c and gpio driver added through this tree. Those drivers were acked by the respective subsystem maintainers. All of these have been in linux-next for a while" * tag 'usb-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (132 commits) usb: vhci-hcd: Prevent suspending virtually attached devices USB: serial: option: add SIMCom 8230C compositions thunderbolt: Fix use-after-free in tb_dp_dprx_work usb: xhci: align PORTSC trace with one-based port numbering usb: xhci: correct indentation for PORTSC tracing function usb: xhci: improve TR Dequeue Pointer mask usb: xhci-pci: add support for hosts with zero USB3 ports usb: xhci: Update a comment about Stop Endpoint retries Revert "usb: xhci: Avoid Stop Endpoint retry loop if the endpoint seems Running" usb: gadget: f_rndis: Refactor bind path to use __free() usb: gadget: f_ecm: Refactor bind path to use __free() usb: gadget: f_acm: Refactor bind path to use __free() usb: gadget: f_ncm: Refactor bind path to use __free() usb: gadget: Introduce free_usb_request helper usb: gadget: Store endpoint pointer in usb_request usb: host: xhci-rcar: Add Renesas RZ/G3E USB3 Host driver support usb: host: xhci-plat: Add .post_resume_quirk for struct xhci_plat_priv usb: host: xhci-rcar: Move R-Car reg definitions dt-bindings: usb: Document Renesas RZ/G3E USB3HOST usb: gadget: f_fs: Fix epfile null pointer access after ep enable. ...
2025-09-18Merge tag 'ib-mfd-gpio-input-pinctrl-pwm-v6.18' of ↵Bartosz Golaszewski1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into gpio/for-next Pull changes from the immutable branch between MFD, GPIO, Input, Pinctrl and PWM trees containing the GPIO driver for max7360.
2025-09-16gpio: max7360: Add MAX7360 gpio supportMathieu Dubois-Briand1-0/+1
Add driver for Maxim Integrated MAX7360 GPIO/GPO controller. Two sets of GPIOs are provided by the device: - Up to 8 GPIOs, shared with the PWM and rotary encoder functionalities. These GPIOs also provide interrupts on input changes. - Up to 6 GPOs, on unused keypad columns pins. Co-developed-by: Kamel Bouhara <kamel.bouhara@bootlin.com> Signed-off-by: Kamel Bouhara <kamel.bouhara@bootlin.com> Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com> Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-7-435cfda2b1ea@bootlin.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-09-16gpio: Add Nuvoton NCT6694 GPIO supportMing Yu1-0/+1
This driver supports GPIO and IRQ functionality for NCT6694 MFD device based on USB interface. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: Ming Yu <a0282524688@gmail.com> Link: https://lore.kernel.org/r/20250912091952.1169369-3-a0282524688@gmail.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-09-12gpio: Add Intel USBIO GPIO driverIsrael Cepeda1-0/+1
Add a a driver for the GPIO auxbus child device of the Intel USBIO USB IO-expander used by the MIPI cameras on various new (Meteor Lake and later) Intel laptops. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Co-developed-by: Hans de Goede <hansg@kernel.org> Signed-off-by: Hans de Goede <hansg@kernel.org> Signed-off-by: Israel Cepeda <israel.a.cepeda.lopez@intel.com> Link: https://lore.kernel.org/r/20250911181343.77398-3-hansg@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-24gpiolib: make legacy interfaces optionalArnd Bergmann1-1/+1
The traditional interfaces are only used on a small number of ancient boards. Make these optional now so they can be disabled by default. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Link: https://lore.kernel.org/r/20250722153634.3683927-1-arnd@kernel.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-07-24gpio: Add new gpio-macsmc driver for Apple MacsHector Martin1-0/+1
This driver implements the GPIO service on top of the SMC framework on Apple Mac machines. In particular, these are the GPIOs present in the PMU IC which are used to control power to certain on-board devices. Although the underlying hardware supports various pin config settings (input/output, open drain, etc.), this driver does not implement that functionality and leaves it up to the firmware to configure things properly. We also don't yet support interrupts/events. This is sufficient for device power control, which is the only thing we need to support at this point. More features will be implemented when needed. To our knowledge, only Apple Silicon Macs implement this SMC feature. Signed-off-by: Hector Martin <marcan@marcan.st> Reviewed-by: Bartosz Golaszewski <brgl@bgdev.pl> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Sven Peter <sven@kernel.org> Signed-off-by: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk> Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> Reviewed-by: Neal Gompa <neal@gompa.dev> Signed-off-by: Sven Peter <sven@kernel.org> Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Link: https://lore.kernel.org/r/20250610-smc-6-15-v7-6-556cafd771d3@kernel.org Signed-off-by: Lee Jones <lee@kernel.org>
2025-05-21Merge tag 'intel-gpio-v6.16-1' of ↵Bartosz Golaszewski1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-gpio-intel into gpio/for-next intel-gpio for v6.16-1 * Split GPIO ACPI quirks to its own file * Refactored GPIO ACPI library to shrink the code The following is an automated git shortlog grouped by driver: gpiolib: - acpi: Update file references in the Documentation and MAINTAINERS - acpi: Move quirks to a separate file - acpi: Add acpi_gpio_need_run_edge_events_on_boot() getter - acpi: Handle deferred list via new API - acpi: Make sure we fill struct acpi_gpio_info - acpi: Switch to use enum in acpi_gpio_in_ignore_list() - acpi: Use temporary variable for struct acpi_gpio_info - acpi: Deduplicate some code in __acpi_find_gpio() - acpi: Reuse struct acpi_gpio_params in struct acpi_gpio_lookup - acpi: Rename par to params for better readability - acpi: Reduce memory footprint for struct acpi_gpio_params - acpi: Remove index parameter from acpi_gpio_property_lookup() - acpi: Improve struct acpi_gpio_info memory footprint
2025-05-21gpiolib: acpi: Move quirks to a separate fileAndy Shevchenko1-0/+1
The gpiolib-acpi.c is huge enough even without DMI quirks. Move them to a separate file for a better maintenance. No functional change intended. Reviewed-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2025-05-13Merge tag 'ib-mfd-gpio-nvmem-v6.16' of ↵Bartosz Golaszewski1-0/+1
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 Draszik1-0/+1
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>
2025-04-17gpio: spacemit: add support for K1 SoCYixun Lan1-0/+1
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>
2025-04-07gpio: Enable Blaize BLZP1600 GPIO supportNikolaos Pasaloukos1-0/+1
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>
2025-02-24gpio: introduce utilities for synchronous fake device creationKoichiro Den1-0/+3
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>
2024-11-06gpio: mpfs: add polarfire soc gpio supportLewis Hanly1-0/+1
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>
2024-10-14gpio: add support for FTDI's MPSSE as GPIOMary Strodl1-0/+1
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>
2024-10-09gpio: Congatec Board Controller gpio driverThomas Richard1-0/+1
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>
2024-08-01gpio: adp5585: Add Analog Devices ADP5585 supportHaibo Chen1-0/+1
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>
2024-07-09gpio: virtuser: new virtual testing driver for the GPIO APIBartosz Golaszewski1-0/+1
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 Sang1-0/+1
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>
2024-04-25gpio: Add Intel Granite Rapids-D vGPIO driverAapo Vienamo1-0/+1
This driver provides a basic GPIO driver for the Intel Granite Rapids-D virtual GPIOs. On SoCs with limited physical pins on the package, the physical pins controlled by this driver would be exposed on an external device such as a BMC or CPLD. The virtual GPIO registers are an interface to firmware, which communicates with the external device that implements the GPIO hardware functionality. Signed-off-by: Aapo Vienamo <aapo.vienamo@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2024-03-14Merge tag 'pinctrl-v6.9-1' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control updates from Linus Walleij: "No core changes this time around. New drivers: - New driver for Renesas R8A779H0 also known as R-Car V4M. - New driver for the Awinic AW9523/B I2C GPIO expander. I found this living out-of-tree in OpenWrt as an upstream attempt had stalled on the finishing line, so I picked it up and finished the job. Improvements: - The Nomadik pin control driver was for years re-used out of tree for the ST STA chips, and now the IP was re-used in a MIPS automotive SoC called MobilEyeq5, so it has been split in pin control and GPIO drivers so the latter can be reused by MobilEyeq5. (Along with a long list of cleanups) - A lot of overall cleanup and tidying up" * tag 'pinctrl-v6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (87 commits) drivers/gpio/nomadik: move dummy nmk_gpio_dbg_show_one() to header gpio: nomadik: remove BUG_ON() in nmk_gpio_populate_chip() dt-bindings: pinctrl: qcom: update compatible name for match with driver pinctrl: aw9523: Make the driver tristate pinctrl: nomadik: fix dereference of error pointer gpio: nomadik: Back out some managed resources pinctrl: aw9523: Add proper terminator pinctrl: core: comment that pinctrl_add_gpio_range() is deprecated pinctrl: pinmux: Suppress error message for -EPROBE_DEFER pinctrl: Add driver for Awinic AW9523/B I2C GPIO Expander dt-bindings: pinctrl: Add bindings for Awinic AW9523/AW9523B gpio: nomadik: Finish conversion to use firmware node APIs gpio: nomadik: fix Kconfig dependencies inbetween pinctrl & GPIO pinctrl: da9062: Add OF table dt-bindings: pinctrl: at91: add sam9x7 pinctrl: ocelot: remove redundant assignment to variable ret gpio: nomadik: grab optional reset control and deassert it at probe gpio: nomadik: support mobileye,eyeq5-gpio gpio: nomadik: handle variadic GPIO count gpio: nomadik: support shared GPIO IRQs ...
2024-02-29gpio: nomadik: extract GPIO platform driver from drivers/pinctrl/nomadik/Théo Lebrun1-0/+1
Previously, drivers/pinctrl/nomadik/pinctrl-nomadik.c registered two platform drivers: pinctrl & GPIO. Move the GPIO aspect to the drivers/gpio/ folder, as would be expected. Both drivers are intertwined for a reason; pinctrl requires access to GPIO registers for pinmuxing, pull-disable, disabling interrupts while setting the muxing and wakeup control. Information sharing is done through a shared array containing GPIO chips and a few helper functions. That shared array is not touched from gpio-nomadik when CONFIG_PINCTRL_NOMADIK is not defined. Make no change to the code that moved into gpio-nomadik; there should be no behavior change following. A few functions are shared and header comments are added. Checkpatch warnings are addressed. NUM_BANKS is renamed to NMK_MAX_BANKS. It is supported to compile gpio-nomadik without pinctrl-nomadik. The opposite is not true. Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com> Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-6-3ba757474006@bootlin.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2024-02-26gpio: Add ChromeOS EC GPIO driverStephen Boyd1-0/+1
The ChromeOS embedded controller (EC) supports setting the state of GPIOs when the system is unlocked, and getting the state of GPIOs in all cases. The GPIOs are on the EC itself, so the EC acts similar to a GPIO expander. Add a driver to get and set the GPIOs on the EC through the host command interface. Signed-off-by: Stephen Boyd <swboyd@chromium.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-01-03gpio: nuvoton: Add Nuvoton NPCM sgpio driverJim Liu1-0/+1
Add Nuvoton BMC NPCM7xx/NPCM8xx sgpio driver support. Nuvoton NPCM SGPIO module is combine serial to parallel IC (HC595) and parallel to serial IC (HC165), and use APB3 clock to control it. This interface has 4 pins (D_out , D_in, S_CLK, LDSH). BMC can use this driver to increase 64 GPI pins and 64 GPO pins to use. Signed-off-by: Jim Liu <JJLIU0@nuvoton.com> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-01-03gpio: rtd: Add support for Realtek DHC(Digital Home Center) RTD SoCsTzuyi Chang1-0/+1
This driver enables configuration of GPIO direction, GPIO values, GPIO debounce settings and handles GPIO interrupts. Signed-off-by: Tzuyi Chang <tychang@realtek.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-07-29gpio: ds4520: Add ADI DS4520 GPIO Expander SupportOkan Sahin1-0/+1
The DS4520 is a 9-bit nonvolatile (NV) I/O expander. It offers users a digitally programmable alternative to hardware jumpers and mechanical switches that are being used to control digital logic node. Signed-off-by: Okan Sahin <okan.sahin@analog.com> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-06-16gpio: mlxbf3: Add gpio driver supportAsmaa Mnebhi1-0/+1
Add support for the BlueField-3 SoC GPIO driver. This driver configures and handles GPIO interrupts. It also enables a user to manipulate certain GPIO pins via libgpiod tools or other kernel drivers. The usables pins are defined via the "gpio-reserved-ranges" property. Signed-off-by: Asmaa Mnebhi <asmaa@nvidia.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-06-16gpio: delay: Remove duplicative functionalityAndy Shevchenko1-1/+0
Now that GPIO aggregator supports a delay line, drop the duplicative functionality, i.e. the entire gpio-delay driver. Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-06-13gpio: tps65219: add GPIO support for TPS65219 PMICJerome Neanne1-0/+1
Add support for TPS65219 PMICs GPIO interface. 3 GPIO pins: - GPIO0 only is IO but input mode reserved for MULTI_DEVICE_ENABLE usage. - GPIO1 and GPIO2 are Output only and referred as GPO1 and GPO2 in spec. GPIO0 is statically configured as input or output prior to Linux boot. it is used for MULTI_DEVICE_ENABLE function. This setting is statically configured by NVM. GPIO0 can't be used as a generic GPIO (specification Table 8-34). It's either a GPO when MULTI_DEVICE_EN=0 or a GPI when MULTI_DEVICE_EN=1. Datasheet describes specific usage for non standard GPIO. Datasheet: https://www.ti.com/lit/ds/symlink/tps65219.pdf Co-developed-by: Jonathan Cormier <jcormier@criticallink.com> Signed-off-by: Jonathan Cormier <jcormier@criticallink.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jerome Neanne <jneanne@baylibre.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-06-02gpio: Add gpio delay driverAlexander Stein1-0/+1
This driver implements a GPIO enable/disable delay. It supports a list of GPIO outputs, which ramp-up/ramp-down delay can be specified at consumer location. The main purpose is to address external, passive delays upon line voltage changes. Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-05-02Merge tag 'mfd-next-6.4' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "New Drivers: - Add support for Renesas RZ/G2L MTU3 New Device Support: - Add support for Lenovo Yoga Book X90F to Intel CHT WC - Add support for MAX5970 and MAX5978 to Simple MFD (I2C) - Add support for Meteor Lake PCH-S LPSS PCI to Intel LPSS PCI - Add support for AXP15060 PMIC to X-Powers PMIC collection Remove Device Support: - Remove support for Samsung 5M8751 and S5M8763 PMIC devices New Functionality: - Convert deprecated QCOM IRQ Chip to config registers - Add support for 32-bit address spaces to Renesas SMUs Fix-ups: - Make use of APIs / MACROs designed to simplify and demystify - Add / improve Device Tree bindings - Memory saving struct layout optimisations - Remove old / deprecated functionality - Factor out unassigned register addresses from ranges - Trivial: Spelling fixes, renames and coding style fixes - Rid 'defined but not used' warnings - Remove ineffective casts and pointer stubs Bug Fixes: - Fix incorrectly non-inverted mask/unmask IRQs on QCOM platforms - Remove MODULE_*() helpers from non-tristate drivers - Do not attempt to use out-of-range memory addresses associated with io_base - Provide missing export helpers - Fix remap bulk read optimisation fallout - Fix memory leak issues in error paths" * tag 'mfd-next-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (88 commits) dt-bindings: mfd: ti,j721e-system-controller: Add SoC chip ID leds: bd2606mvv: Driver for the Rohm 6 Channel i2c LED driver dt-bindings: mfd: qcom,spmi-pmic: Document flash LED controller dt-bindings: mfd: x-powers,axp152: Document the AXP15060 variant mfd: axp20x: Add support for AXP15060 PMIC dt-bindings: mfd: x-powers,axp152: Document the AXP313a variant counter: rz-mtu3-cnt: Unlock on error in rz_mtu3_count_ceiling_write() dt-bindings: mfd: dlg,da9063: Document voltage monitoring dt-bindings: mfd: stm32: Remove unnecessary blank lines dt-bindings: mfd: qcom,spmi-pmic: Use generic ADC node name in examples dt-bindings: mfd: syscon: Add nuvoton,ma35d1-sys compatible MAINTAINERS: Add entries for Renesas RZ/G2L MTU3a counter driver counter: Add Renesas RZ/G2L MTU3a counter driver Documentation: ABI: sysfs-bus-counter: add cascade_counts_enable and external_input_phase_clock_select mfd: Add Renesas RZ/G2L MTU3a core driver dt-bindings: timer: Document RZ/G2L MTU3a bindings mfd: rsmu_i2c: Convert to i2c's .probe_new() again mfd: intel-lpss: Add Intel Meteor Lake PCH-S LPSS PCI IDs mfd: dln2: Fix memory leak in dln2_probe() mfd: axp20x: Fix axp288 writable-ranges ...
2023-04-26gpio: Add support for Intel LJCA USB GPIO driverYe Xiang1-0/+1
This patch implements the GPIO function of Intel USB-I2C/GPIO/SPI adapter device named "La Jolla Cove Adapter" (LJCA). It communicate with LJCA GPIO module with specific protocol through interfaces exported by LJCA USB driver. Signed-off-by: Ye Xiang <xiang.ye@intel.com> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20230225140118.2037220-3-xiang.ye@intel.com
2023-04-06Merge tag 'intel-gpio-v6.4-2' of ↵Bartosz Golaszewski1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-gpio-intel into gpio/for-next intel-gpio for v6.4-2 * Fixed suspend issue on Clevo NL5xNU * Split a new Intel Tangier (library) driver for current and new platforms * Introduced a new driver for Intel Elkhart Lake PSE GPIO (see also above) * Contained a few fixes for the previous of_gpio.h cleanup * Miscellaneous cleanups here and there The following is an automated git shortlog grouped by driver: elkhartlake: - Introduce Intel Elkhart Lake PSE GPIO gpiolib: - acpi: Add a ignore wakeup quirk for Clevo NL5xNU - acpi: Move ACPI device NULL check to acpi_get_driver_gpio_data() - acpi: use the fwnode in acpi_gpiochip_find() ich: - Use devm_gpiochip_add_data() to simplify remove path merrifield: - Utilise temporary variable for struct device - Use dev_err_probe() - Adapt to Intel Tangier GPIO driver mips: - ar7: include linux/gpio/driver.h mm-lantiq: - Fix typo in the newly added header filename powerpc/40x: - Add missing select OF_GPIO_MM_GPIOCHIP sh: - mach-x3proto: Add missing #include <linux/gpio/driver.h> tangier: - Introduce Intel Tangier GPIO driver
2023-03-15gpio: fxl6408: add I2C GPIO expander driverEmanuele Ghidoli1-0/+1
Add minimal driver for Fairchild FXL6408 8-bit I2C-controlled GPIO expander using the generic regmap based GPIO driver (GPIO_REGMAP). The driver implements setting the GPIO direction, reading inputs and writing outputs. In addition to that the FXL6408 has the following functionalities: - allows to monitor input ports for data transitions with an interrupt pin - all inputs can be configured with pull-up or pull-down resistors Datasheet: https://www.onsemi.com/download/data-sheet/pdf/fxl6408-d.pdf Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com> Co-developed-by: Francesco Dolcini <francesco.dolcini@toradex.com> Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> [Bartosz: order includes alphabetically] Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-03-06gpio: elkhartlake: Introduce Intel Elkhart Lake PSE GPIOPandith N1-0/+1
This driver adds support for Intel Elkhart Lake PSE GPIO controller, using Intel Tangier as a library driver. Signed-off-by: Pandith N <pandith.n@intel.com> Co-developed-by: Raag Jadav <raag.jadav@intel.com> Signed-off-by: Raag Jadav <raag.jadav@intel.com> Co-developed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2023-03-06gpio: tangier: Introduce Intel Tangier GPIO driverPandith N1-0/+1
Intel Elkhart Lake and Merrifield platforms have same GPIO IP. Intel Tangier implements the common GPIO functionalities for both Elkhart Lake and Merrifield platforms. Signed-off-by: Pandith N <pandith.n@intel.com> Co-developed-by: Raag Jadav <raag.jadav@intel.com> Signed-off-by: Raag Jadav <raag.jadav@intel.com> Co-developed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2023-03-06gpio: loongson: add gpio driver supportYinbo Zhu1-0/+1
The Loongson platforms GPIO controller contains 60 GPIO pins in total, 4 of which are dedicated GPIO pins, and the remaining 56 are reused with other functions. Each GPIO can set input/output and has the interrupt capability. This driver added support for Loongson GPIO controller and support to use DTS or ACPI to descibe GPIO device resources. Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn> Signed-off-by: Hongchen Zhang <zhanghongchen@loongson.cn> Signed-off-by: Liu Peibao <liupeibao@loongson.cn> Signed-off-by: Juxin Gao <gaojuxin@loongson.cn> Signed-off-by: Yinbo Zhu <zhuyinbo@loongson.cn> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-02-01mfd: remove ucb1400 supportArnd Bergmann1-1/+0
The ucb1400 MFD driver and its gpio and touchscreen child drivers were only used on a few PXA machines that were unused for a while and are now removed. Removing these leaves the AC97 support as ALSA specific, no other drivers are now connected through this interface. Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Bartosz Golaszewski <brgl@bgdev.pl> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Lee Jones <lee@kernel.org> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.com> Cc: Marek Vasut <marex@denx.de> Cc: linux-kernel@vger.kernel.org Cc: linux-gpio@vger.kernel.org Cc: linux-input@vger.kernel.org Cc: alsa-devel@alsa-project.org Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-01-10gpio: remove iop driverArnd Bergmann1-1/+0
The iop32x platform was removed, and its gpio driver is now orphaned. Cc: Lennert Buytenhek <buytenh@wantstofly.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-11-15gpiolib: add support for software nodesDmitry Torokhov1-0/+1
Now that static device properties understand notion of child nodes and references, let's teach gpiolib to handle them: - GPIOs are represented as a references to software nodes representing gpiochip - references must have 2 arguments - GPIO number within the chip and GPIO flags (GPIO_ACTIVE_LOW/GPIO_ACTIVE_HIGH, etc) - a new PROPERTY_ENTRY_GPIO() macro is supplied to ensure the above - name of the software node representing gpiochip must match label of the gpiochip, as we use it to locate gpiochip structure at runtime The following illustrates use of software nodes to describe a "System" button that is currently specified via use of gpio_keys_platform_data in arch/mips/alchemy/board-mtx1.c. It follows bindings specified in Documentation/devicetree/bindings/input/gpio-keys.yaml. static const struct software_node mxt1_gpiochip2_node = { .name = "alchemy-gpio2", }; static const struct property_entry mtx1_gpio_button_props[] = { PROPERTY_ENTRY_U32("linux,code", BTN_0), PROPERTY_ENTRY_STRING("label", "System button"), PROPERTY_ENTRY_GPIO("gpios", &mxt1_gpiochip2_node, 7, GPIO_ACTIVE_LOW), { } }; Similarly, arch/arm/mach-tegra/board-paz00.c can be converted to: static const struct software_node tegra_gpiochip_node = { .name = "tegra-gpio", }; static struct property_entry wifi_rfkill_prop[] __initdata = { PROPERTY_ENTRY_STRING("name", "wifi_rfkill"), PROPERTY_ENTRY_STRING("type", "wlan"), PROPERTY_ENTRY_GPIO("reset-gpios", &tegra_gpiochip_node, 25, GPIO_ACTIVE_HIGH); PROPERTY_ENTRY_GPIO("shutdown-gpios", &tegra_gpiochip_node, 85, GPIO_ACTIVE_HIGH); { }, }; static struct platform_device wifi_rfkill_device = { .name = "rfkill_gpio", .id = -1, }; ... software_node_register(&tegra_gpiochip_node); device_create_managed_software_node(&wifi_rfkill_device.dev, wifi_rfkill_prop, NULL); Acked-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2022-10-26gpio: Add gpio latch driverSascha Hauer1-0/+1
This driver implements a GPIO multiplexer based on latches connected to other GPIOs. A set of data GPIOs is connected to the data input of multiple latches. The clock input of each latch is driven by another set of GPIOs. With two 8-bit latches 10 GPIOs can be multiplexed into 16 GPIOs. GPOs might be a better term as in fact the multiplexed pins are output only. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Serge Semin <fancer.lancer@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> [Bartosz: fixed the strange of_device_id formatting] Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2022-10-25gpio: idio-16: Introduce the ACCES IDIO-16 GPIO library moduleWilliam Breathitt Gray1-0/+1
Exposes consumer library functions to facilitate communication with devices within the ACCES IDIO-16 family such as the 104-IDIO-16 and the PCI-IDIO-16. A CONFIG_GPIO_IDIO_16 Kconfig option is introduced by this patch. Modules wanting access to these idio-16 library functions should select this Kconfig option and import the GPIO_IDIO_16 symbol namespace. Cc: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: William Breathitt Gray <william.gray@linaro.org> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2022-10-17gpio: Remove sta2x11 GPIO driverDavide Ciminaghi1-1/+0
The Connext chip has 4 gpio cells looking very similar to those of the Nomadik, whose gpio/pinctrl driver (already featuring devicetree support) will be used instead of the sta2x11 specific one. Signed-off-by: Davide Ciminaghi <ciminaghi@gnudd.com> Acked-by: Giancarlo Asnaghi <giancarlo.asnaghi@st.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2022-10-11Merge tag 'input-for-v6.1-rc0' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: - a new driver for IBM Operational Panel - a new driver for PinePhone keyboards - RT5120 PMIC power key support - various enhancements and support for new models in xpad (Xbox) driver - a new compatible ID for Elan touchscreen driver - rework of adp5588-keys driver to support configuring via device properties (OF, ACPI, etc) instead of platform data, and proper support of optional gpiochip functionality (and removal of gpio-adp5588 driver) - improvements to firmware update handling in Synaptics RMI4 driver - support for double key matrix in mt6779-keypad - support for polled mode in adc-joystick driver - other assorted driver fixes, cleanups and improvements * tag 'input-for-v6.1-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (90 commits) Input: i8042 - fix refount leak on sparc Input: i8042 - add LoongArch support in i8042-acpipnpio.h Input: i8042 - rename i8042-x86ia64io.h to i8042-acpipnpio.h Input: pinephone-keyboard - support the proxied I2C bus Input: pinephone-keyboard - add PinePhone keyboard driver dt-bindings: input: Add the PinePhone keyboard binding dt-bindings: input: Convert hid-over-i2c to DT schema input: drop empty comment blocks Input: xpad - add X-Box Adaptive Profile button Input: add ABS_PROFILE to uapi and documentation Input: xpad - add X-Box Adaptive XBox button Input: xpad - add X-Box Adaptive support Input: ims-pcu - fix spelling mistake "BOOLTLOADER" -> "BOOTLOADER" Input: ibm-panel - add missing MODULE_DEVICE_TABLE Input: icn8505 - utilize acpi_get_subsystem_id() Input: xpad - decipher xpadone packages with GIP defines Input: xpad - refactor using BIT() macro Input: synaptics-rmi4 - convert to use sysfs_emit() APIs Input: twl4030-pwrbutton - add missing of.h include Input: applespi - replace zero-length array with DECLARE_FLEX_ARRAY() helper ...
2022-08-31gpio: imx-scu: add imx-scu GPIO driverShenwei Wang1-0/+1
The SCU firmware on i.MX8 platforms provides a set of APIs to control the GPIO PINs on the SCU domain. This patch implements the standard GPIO driver interface to access those PINs on the SCU domain over the SCU APIs. Signed-off-by: Shenwei Wang <shenwei.wang@nxp.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2022-08-30gpio: gpio-adp5588: drop the driverNuno Sá1-1/+0
With commit 9d2b2e83ef27 ("Input: adp5588-keys - support gpi key events as 'gpio keys'") the irchip functionality is directly supported in the input driver as the main goal of these pins is to be used as gpio keys. Hence, this driver can be removed. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Acked-by: Bartosz Golaszewski <brgl@bgdev.pl> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220829131553.690063-3-nuno.sa@analog.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-07-20gpio: i8255: Introduce the Intel 8255 interface library moduleWilliam Breathitt Gray1-0/+1
Exposes consumer library functions providing support for interfaces compatible with the venerable Intel 8255 Programmable Peripheral Interface (PPI). The Intel 8255 PPI first appeared in the early 1970s, initially for the Intel 8080 and later appearing in the original IBM-PC. The popularity of the original Intel 8255 chip led to many subsequent variants and clones of the interface in various chips and integrated circuits. Although still popular, interfaces compatible with the Intel 8255 PPI are nowdays typically found embedded in larger VLSI processing chips and FPGA components rather than as discrete ICs. A CONFIG_GPIO_I8255 Kconfig option is introduced by this patch. Modules wanting access to these i8255 library functions should select this Kconfig option, and import the I8255 symbol namespace. Tested-by: Fred Eckert <Frede@cmslaser.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Cc: John Hentges <jhentges@accesio.com> Cc: Jay Dolan <jay.dolan@accesio.com> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: William Breathitt Gray <william.gray@linaro.org> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2022-07-19gpio: remove VR41XX related gpio driverThomas Bogendoerfer1-1/+0
Commit d3164e2f3b0a ("MIPS: Remove VR41xx support") removed support for MIPS VR41xx platform, so remove exclusive drivers for this platform, too. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2022-03-28Merge tag 'char-misc-5.18-rc1' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc and other driver updates from Greg KH: "Here is the big set of char/misc and other small driver subsystem updates for 5.18-rc1. Included in here are merges from driver subsystems which contain: - iio driver updates and new drivers - fsi driver updates - fpga driver updates - habanalabs driver updates and support for new hardware - soundwire driver updates and new drivers - phy driver updates and new drivers - coresight driver updates - icc driver updates Individual changes include: - mei driver updates - interconnect driver updates - new PECI driver subsystem added - vmci driver updates - lots of tiny misc/char driver updates All of these have been in linux-next for a while with no reported problems" * tag 'char-misc-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (556 commits) firmware: google: Properly state IOMEM dependency kgdbts: fix return value of __setup handler firmware: sysfb: fix platform-device leak in error path firmware: stratix10-svc: add missing callback parameter on RSU arm64: dts: qcom: add non-secure domain property to fastrpc nodes misc: fastrpc: Add dma handle implementation misc: fastrpc: Add fdlist implementation misc: fastrpc: Add helper function to get list and page misc: fastrpc: Add support to secure memory map dt-bindings: misc: add fastrpc domain vmid property misc: fastrpc: check before loading process to the DSP misc: fastrpc: add secure domain support dt-bindings: misc: add property to support non-secure DSP misc: fastrpc: Add support to get DSP capabilities misc: fastrpc: add support for FASTRPC_IOCTL_MEM_MAP/UNMAP misc: fastrpc: separate fastrpc device from channel context dt-bindings: nvmem: brcm,nvram: add basic NVMEM cells dt-bindings: nvmem: make "reg" property optional nvmem: brcm_nvram: parse NVRAM content into NVMEM cells nvmem: dt-bindings: Fix the error of dt-bindings check ...
generated by cgit v1.2.3 (git 2.39.1) at 2026-01-11 08:05:10 +0000