Changes in Makefile

eb5ab6ff - gpio: introduce utilities for synchronous fake device creation

Fri, 21 Feb 2025 13:34:59 +0000

gpio: introduce utilities for synchronous fake device creationBoth gpio-sim and gpio-virtuser share a mechanism to instantiate aplatform device, wait for probe completion, and retrieve the probesuccess or error status synchronously. With gpio-aggregator planned toadopt this approach for its configfs interface, it's time to factorout the common code.Add dev-sync-probe.[ch] to house helper functions used by all suchimplementations.No functional change.Signed-off-by: Koichiro Den Link: https://lore.kernel.org/r/20250221133501.2203897-2-koichiro.den@canonical.comSigned-off-by: Bartosz Golaszewski List of files: /linux-6.15/drivers/gpio/Makefile

a987b78f - gpio: mpfs: add polarfire soc gpio support

Mon, 04 Nov 2024 09:49:33 +0000

gpio: mpfs: add polarfire soc gpio supportAdd a driver to support the Polarfire SoC gpio controller. Interruptcontroller support is unavailable for now and will be added at a laterdate.Signed-off-by: Lewis Hanly Co-developed-by: Conor Dooley Signed-off-by: Conor Dooley Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20241104-tiny-evaluate-9336020b4b6a@spudSigned-off-by: Bartosz Golaszewski List of files: /linux-6.15/drivers/gpio/Makefile

c46a74ff - gpio: add support for FTDI's MPSSE as GPIO

Wed, 09 Oct 2024 13:11:31 +0000

gpio: add support for FTDI's MPSSE as GPIOFTDI FT2232H is a USB to GPIO chip. Sealevel produces some deviceswith this chip. FT2232H presents itself as a composite device with twointerfaces (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'tknow how to identify them (I don't have any for testing) and as a resultare unsupported for the time being.Additionally, this driver provides software polling-based interrupts foredge detection. For the Sealevel device I have to test with, this workswell because there is hardware debouncing. From talking to Sealevel'speople, this is their preferred way to do edge detection.Signed-off-by: Mary Strodl Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20241009131131.1618329-1-mstrodl@csh.rit.eduSigned-off-by: Bartosz Golaszewski List of files: /linux-6.15/drivers/gpio/Makefile

4342bf63 - gpio: Congatec Board Controller gpio driver

Tue, 01 Oct 2024 11:53:28 +0000

gpio: Congatec Board Controller gpio driverAdd 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 Signed-off-by: Thomas Richard Acked-by: Bartosz Golaszewski Link: https://lore.kernel.org/r/20241001-congatec-board-controller-v3-2-39ceceed5c47@bootlin.comSigned-off-by: Lee Jones List of files: /linux-6.15/drivers/gpio/Makefile

738bbc66 - gpio: adp5585: Add Analog Devices ADP5585 support

Mon, 22 Jul 2024 12:10:59 +0000

gpio: adp5585: Add Analog Devices ADP5585 supportThe ADP5585 is a 10/11 input/output port expander with a built in keypadmatrix decoder, programmable logic, reset generator, and PWM generator.This driver supports the GPIO function using the platform deviceregistered by the core MFD driver.The driver is derived from an initial implementation from NXP, availablein commit 451f61b46b76 ("MLK-25917-2 gpio: adp5585-gpio: addadp5585-gpio support") in their BSP kernel tree. It has been extensivelyrewritten.Signed-off-by: Haibo Chen Reviewed-by: Linus Walleij Acked-by: Bartosz Golaszewski Co-developed-by: Laurent Pinchart Signed-off-by: Laurent Pinchart Reviewed-by: Frank Li Link: https://lore.kernel.org/r/20240722121100.2855-4-laurent.pinchart@ideasonboard.comSigned-off-by: Lee Jones List of files: /linux-6.15/drivers/gpio/Makefile

91581c4b - gpio: virtuser: new virtual testing driver for the GPIO API

Mon, 08 Jul 2024 14:29:12 +0000

gpio: virtuser: new virtual testing driver for the GPIO APIThe GPIO subsystem used to have a serious problem with undefined behaviorand use-after-free bugs on hot-unplug of GPIO chips. This can beconsidered a corner-case by some as most GPIO controllers are enabledearly in the boot process and live until the system goes down but mostGPIO drivers do allow unbind over sysfs, many are loadable modules thatcan be (force) unloaded and there are also GPIO devices that can bedynamically 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 devicebut the issues manifest themselves differently in the kernel.This is a proposition of adding a new virtual driver - a configurableGPIO consumer that can be configured over configfs (similarly togpio-sim) or described on the device-tree.This driver is aimed as a helper in spotting any regressions inhot-unplug handling in GPIOLIB.Link: https://lore.kernel.org/r/20240708142912.120570-1-brgl@bgdev.plSigned-off-by: Bartosz Golaszewski List of files: /linux-6.15/drivers/gpio/Makefile

7828b7bb - gpio: add sloppy logic analyzer using polling

Thu, 20 Jun 2024 09:41:58 +0000

gpio: add sloppy logic analyzer using pollingThis is a sloppy logic analyzer using GPIOs. It comes with a script toisolate a CPU for polling. While this is definitely not a productionlevel analyzer, it can be a helpful first view when remote debugging.Read the documentation for details.Signed-off-by: Wolfram Sang Reviewed-by: Linus Walleij 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 List of files: /linux-6.15/drivers/gpio/Makefile

ecc4b141 - gpio: Add Intel Granite Rapids-D vGPIO driver

Tue, 23 Apr 2024 18:13:14 +0000

gpio: Add Intel Granite Rapids-D vGPIO driverThis driver provides a basic GPIO driver for the Intel Granite Rapids-Dvirtual GPIOs. On SoCs with limited physical pins on the package, thephysical pins controlled by this driver would be exposed on an externaldevice such as a BMC or CPLD. The virtual GPIO registers are aninterface to firmware, which communicates with the external device thatimplements the GPIO hardware functionality.Signed-off-by: Aapo Vienamo Reviewed-by: Mika Westerberg Reviewed-by: Linus Walleij Signed-off-by: Andy Shevchenko List of files: /linux-6.15/drivers/gpio/Makefile

966942ae - gpio: nomadik: extract GPIO platform driver from drivers/pinctrl/nomadik/

Wed, 28 Feb 2024 11:28:04 +0000

gpio: nomadik: extract GPIO platform driver from drivers/pinctrl/nomadik/Previously, drivers/pinctrl/nomadik/pinctrl-nomadik.c registered twoplatform drivers: pinctrl & GPIO. Move the GPIO aspect to thedrivers/gpio/ folder, as would be expected.Both drivers are intertwined for a reason; pinctrl requires access toGPIO registers for pinmuxing, pull-disable, disabling interrupts whilesetting the muxing and wakeup control. Information sharing is donethrough a shared array containing GPIO chips and a few helperfunctions. That shared array is not touched from gpio-nomadik whenCONFIG_PINCTRL_NOMADIK is not defined.Make no change to the code that moved into gpio-nomadik; there should beno behavior change following. A few functions are shared and headercomments are added. Checkpatch warnings are addressed. NUM_BANKS isrenamed to NMK_MAX_BANKS.It is supported to compile gpio-nomadik without pinctrl-nomadik. Theopposite is not true.Signed-off-by: Théo Lebrun Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-6-3ba757474006@bootlin.comSigned-off-by: Linus Walleij List of files: /linux-6.15/drivers/gpio/Makefile

f837fe1b - gpio: Add ChromeOS EC GPIO driver

Tue, 20 Feb 2024 04:52:27 +0000

gpio: Add ChromeOS EC GPIO driverThe ChromeOS embedded controller (EC) supports setting the state ofGPIOs when the system is unlocked, and getting the state of GPIOs in allcases. The GPIOs are on the EC itself, so the EC acts similar to a GPIOexpander. Add a driver to get and set the GPIOs on the EC through thehost command interface.Signed-off-by: Stephen Boyd Reviewed-by: Linus Walleij Signed-off-by: Bartosz Golaszewski List of files: /linux-6.15/drivers/gpio/Makefile

c4f8457d - gpio: nuvoton: Add Nuvoton NPCM sgpio driver

Fri, 29 Dec 2023 07:45:08 +0000

gpio: nuvoton: Add Nuvoton NPCM sgpio driverAdd 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 Signed-off-by: Bartosz Golaszewski List of files: /linux-6.15/drivers/gpio/Makefile

eee636bf - gpio: rtd: Add support for Realtek DHC(Digital Home Center) RTD SoCs

Thu, 28 Dec 2023 10:48:00 +0000

gpio: rtd: Add support for Realtek DHC(Digital Home Center) RTD SoCsThis driver enables configuration of GPIO direction, GPIO values, GPIOdebounce settings and handles GPIO interrupts.Signed-off-by: Tzuyi Chang Reviewed-by: Linus Walleij Signed-off-by: Bartosz Golaszewski List of files: /linux-6.15/drivers/gpio/Makefile

659ad5f7 - gpio: ds4520: Add ADI DS4520 GPIO Expander Support

Sat, 29 Jul 2023 13:56:33 +0000

gpio: ds4520: Add ADI DS4520 GPIO Expander SupportThe DS4520 is a 9-bit nonvolatile (NV) I/O expander.It offers users a digitally programmable alternativeto hardware jumpers and mechanical switches that arebeing used to control digital logic node.Signed-off-by: Okan Sahin Signed-off-by: Bartosz Golaszewski List of files: /linux-6.15/drivers/gpio/Makefile

cd33f216 - gpio: mlxbf3: Add gpio driver support

Wed, 15 Mar 2023 21:50:26 +0000

gpio: mlxbf3: Add gpio driver supportAdd support for the BlueField-3 SoC GPIO driver.This driver configures and handles GPIO interrupts. It also enables a userto 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 Reviewed-by: Andy Shevchenko Reviewed-by: Linus Walleij Signed-off-by: Bartosz Golaszewski List of files: /linux-6.15/drivers/gpio/Makefile

8efe1247 - gpio: delay: Remove duplicative functionality

Thu, 15 Jun 2023 13:20:23 +0000

gpio: delay: Remove duplicative functionalityNow that GPIO aggregator supports a delay line, drop the duplicativefunctionality, i.e. the entire gpio-delay driver.Reviewed-by: Geert Uytterhoeven Reviewed-by: Linus Walleij Signed-off-by: Andy Shevchenko Tested-by: Alexander Stein Signed-off-by: Bartosz Golaszewski List of files: /linux-6.15/drivers/gpio/Makefile

57e30e00 - gpio: tps65219: add GPIO support for TPS65219 PMIC

Wed, 07 Jun 2023 14:39:31 +0000

gpio: tps65219: add GPIO support for TPS65219 PMICAdd 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.pdfCo-developed-by: Jonathan Cormier Signed-off-by: Jonathan Cormier Reviewed-by: Linus Walleij Signed-off-by: Jerome Neanne Reviewed-by: Andy Shevchenko Signed-off-by: Bartosz Golaszewski List of files: /linux-6.15/drivers/gpio/Makefile

cf5dec80 - gpio: Add gpio delay driver

Thu, 06 Apr 2023 09:33:43 +0000

gpio: Add gpio delay driverThis driver implements a GPIO enable/disable delay. It supports a listof GPIO outputs, which ramp-up/ramp-down delay can be specified atconsumer location.The main purpose is to address external, passive delays upon linevoltage changes.Signed-off-by: Alexander Stein Acked-by: Linus Walleij Signed-off-by: Bartosz Golaszewski List of files: /linux-6.15/drivers/gpio/Makefile

c5a4b6fd - gpio: Add support for Intel LJCA USB GPIO driver

Sat, 25 Feb 2023 14:01:15 +0000

gpio: Add support for Intel LJCA USB GPIO driverThis patch implements the GPIO function of Intel USB-I2C/GPIO/SPI adapterdevice named "La Jolla Cove Adapter" (LJCA). It communicate with LJCAGPIO module with specific protocol through interfaces exported by LJCA USBdriver.Signed-off-by: Ye Xiang Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/20230225140118.2037220-3-xiang.ye@intel.com List of files: /linux-6.15/drivers/gpio/Makefile

03810031 - gpio: fxl6408: add I2C GPIO expander driver

Mon, 13 Mar 2023 17:09:50 +0000

gpio: fxl6408: add I2C GPIO expander driverAdd minimal driver for Fairchild FXL6408 8-bit I2C-controlled GPIO expanderusing the generic regmap based GPIO driver (GPIO_REGMAP).The driver implements setting the GPIO direction, reading inputsand 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 resistorsDatasheet: https://www.onsemi.com/download/data-sheet/pdf/fxl6408-d.pdfSigned-off-by: Emanuele Ghidoli Co-developed-by: Francesco Dolcini Signed-off-by: Francesco Dolcini Reviewed-by: Andy Shevchenko [Bartosz: order includes alphabetically]Signed-off-by: Bartosz Golaszewski List of files: /linux-6.15/drivers/gpio/Makefile

9409d8cf - gpio: elkhartlake: Introduce Intel Elkhart Lake PSE GPIO

Thu, 16 Feb 2023 18:36:08 +0000

gpio: elkhartlake: Introduce Intel Elkhart Lake PSE GPIOThis driver adds support for Intel Elkhart Lake PSE GPIO controller,using Intel Tangier as a library driver.Signed-off-by: Pandith N Co-developed-by: Raag Jadav Signed-off-by: Raag Jadav Co-developed-by: Andy Shevchenko Signed-off-by: Andy Shevchenko List of files: /linux-6.15/drivers/gpio/Makefile