1 # SPDX-License-Identifier: GPL-2.0-only
3 # GPIO infrastructure and drivers
9 This enables GPIO support through the generic GPIO library.
10 You only need to enable this if you also want to enable
11 one or more of the GPIO drivers below.
17 config GPIOLIB_FASTPATH_LIMIT
18 int "Maximum number of GPIOs for fast path"
22 This adjusts the point at which certain APIs will switch from
23 using a stack allocated buffer to a dynamically allocated buffer.
25 You shouldn't need to change this unless you really need to
26 optimize either stack space or performance. Change this carefully
27 since setting an incorrect value could cause stack corruption.
38 config GPIOLIB_IRQCHIP
42 config OF_GPIO_MM_GPIOCHIP
45 This adds support for the legacy 'struct of_mm_gpio_chip' interface
46 from PowerPC. Existing drivers using this interface need to select
47 this symbol, but new drivers should use the generic gpio-regmap
48 infrastructure instead.
51 bool "Debug GPIO calls"
52 depends on DEBUG_KERNEL
54 Say Y here to add some extra checks and diagnostics to GPIO calls.
55 These checks help ensure that GPIOs have been properly initialized
56 before they are used, and that sleeping calls are not made from
57 non-sleeping contexts. They can make bitbanged serial protocols
58 slower. The diagnostics help catch the type of setup errors
59 that are most common when setting up new platforms or boards.
62 bool "/sys/class/gpio/... (sysfs interface)" if EXPERT
64 select GPIO_CDEV # We need to encourage the new ABI
66 Say Y here to add the legacy sysfs interface for GPIOs.
68 This ABI is deprecated. If you want to use GPIO from userspace,
69 use the character device /dev/gpiochipN with the appropriate
70 ioctl() operations instead.
73 bool "Character device (/dev/gpiochipN) support" if EXPERT
76 Say Y here to add the character device /dev/gpiochipN interface
77 for GPIOs. The character device allows userspace to control GPIOs
78 using ioctl() operations.
80 Only say N if you are sure that the GPIO character device is not
86 bool "Support GPIO ABI Version 1"
90 Say Y here to support version 1 of the GPIO CDEV ABI.
92 This ABI version is deprecated.
93 Please use the latest ABI for new developments.
98 depends on HAS_IOMEM # Only for IOMEM drivers
105 config GPIO_SWNODE_UNDEFINED
108 This adds a special place holder for software nodes to contain an
109 undefined GPIO reference, this is primarily used by SPI to allow a
110 list of GPIO chip selects to mark a certain chip select as being
111 controlled the SPI device's internal chip select mechanism and not
114 # put drivers in the right section, in alphabetical order
116 # This symbol is selected by both I2C and SPI expanders
123 select GPIOLIB_IRQCHIP
126 Enables support for the idio-16 library functions. The idio-16 library
127 provides functions to facilitate communication with devices within the
128 ACCES IDIO-16 family such as the 104-IDIO-16 and the PCI-IDIO-16.
130 If built as a module its name will be gpio-idio-16.
132 menu "Memory mapped GPIO drivers"
135 config GPIO_74XX_MMIO
136 tristate "GPIO driver for 74xx-ICs with MMIO access"
140 Say yes here to support GPIO functionality for 74xx-compatible ICs
141 with MMIO access. Compatible models include:
142 1 bit: 741G125 (Input), 741G74 (Output)
143 2 bits: 742G125 (Input), 7474 (Output)
144 4 bits: 74125 (Input), 74175 (Output)
145 6 bits: 74365 (Input), 74174 (Output)
146 8 bits: 74244 (Input), 74273 (Output)
147 16 bits: 741624 (Input), 7416374 (Output)
150 tristate "Altera GPIO"
151 select GPIOLIB_IRQCHIP
153 Say Y or M here to build support for the Altera PIO device.
155 If driver is built as a module it will be called gpio-altera.
158 tristate "AMD Promontory GPIO support"
162 Driver for GPIO functionality on Promontory IOHub.
163 Requires ACPI ASL code to enumerate as a platform device.
166 tristate "Aspeed GPIO support"
167 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
168 select GPIOLIB_IRQCHIP
170 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
172 config GPIO_ASPEED_SGPIO
173 bool "Aspeed SGPIO support"
174 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
176 select GPIOLIB_IRQCHIP
178 Say Y here to support Aspeed AST2500 SGPIO functionality.
181 tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
183 depends on ATH79 || COMPILE_TEST
185 select GPIOLIB_IRQCHIP
187 Select this option to enable GPIO driver for
188 Atheros AR71XX/AR724X/AR913X SoC devices.
190 config GPIO_RASPBERRYPI_EXP
191 tristate "Raspberry Pi 3 GPIO Expander"
192 default RASPBERRYPI_FIRMWARE
194 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
195 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
196 depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
198 Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
199 the firmware mailbox to communicate with VideoCore on BCM283x chips.
202 bool "Broadcom Kona GPIO"
203 depends on ARCH_BCM_MOBILE || COMPILE_TEST
204 select GPIOLIB_IRQCHIP
206 Turn on GPIO support for Broadcom "Kona" chips.
208 config GPIO_BCM_XGS_IPROC
209 tristate "BRCM XGS iProc GPIO support"
210 depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST)
212 select GPIOLIB_IRQCHIP
213 default ARCH_BCM_IPROC
215 Say yes here to enable GPIO support for Broadcom XGS iProc SoCs.
218 tristate "Blaize BLZP1600 GPIO support"
219 default y if ARCH_BLAIZE
220 depends on ARCH_BLAIZE || COMPILE_TEST
223 select GPIOLIB_IRQCHIP
225 Say Y or M here to add support for the Blaize BLZP1600 GPIO device.
226 The controller is based on the Verisilicon Microelectronics GPIO APB v0.2
230 tristate "BRCMSTB GPIO support"
231 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
232 depends on OF_GPIO && (ARCH_BRCMSTB || ARCH_BCM2835 || BMIPS_GENERIC || COMPILE_TEST)
236 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
239 tristate "Cadence GPIO support"
242 select GPIOLIB_IRQCHIP
244 Say yes here to enable support for Cadence GPIO controller.
247 tristate "CLPS711X GPIO support"
248 depends on ARCH_CLPS711X || COMPILE_TEST
251 Say yes here to support GPIO on CLPS711X SoCs.
254 tristate "TI Davinci/Keystone GPIO support"
255 default y if ARCH_DAVINCI
256 depends on ((ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3)) || COMPILE_TEST
257 select GPIOLIB_IRQCHIP
259 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
262 tristate "Synopsys DesignWare APB GPIO driver"
264 select GPIOLIB_IRQCHIP
266 Say Y or M here to build support for the Synopsys DesignWare APB
270 tristate "Spreadtrum EIC support"
271 depends on ARCH_SPRD || COMPILE_TEST
273 select GPIOLIB_IRQCHIP
275 Say yes here to support Spreadtrum EIC device.
278 tristate "Emma Mobile GPIO"
279 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
281 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
284 tristate "Airoha GPIO support"
285 depends on ARCH_AIROHA
288 select GPIOLIB_IRQCHIP
290 Say Y or M here to support the GPIO controller block on the
291 Airoha EN7523 SoC. It supports two banks of 32 GPIOs.
295 depends on ARCH_EP93XX
297 select GPIOLIB_IRQCHIP
300 tristate "Support for GPIO pins on XR17V352/354/358"
301 depends on SERIAL_8250_EXAR
304 Selecting this option will enable handling of GPIO pins present
305 on Exar XR17V352/354/358 chips.
308 bool "GE FPGA based GPIO"
309 depends on GE_FPGA || COMPILE_TEST
312 Support for common GPIO functionality provided on some GE Single Board
315 This driver provides basic support (configure as input or output, read
316 and write pin state) for GPIO implemented in a number of GE single
319 config GPIO_FTGPIO010
320 bool "Faraday FTGPIO010 GPIO"
323 select GPIOLIB_IRQCHIP
324 default (ARCH_GEMINI || ARCH_MOXART)
326 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
327 Cortina systems Gemini platforms, Moxa ART and others.
329 config GPIO_GENERIC_PLATFORM
330 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
333 Say yes here to support basic platform_device memory-mapped GPIO controllers.
335 config GPIO_GRANITERAPIDS
336 tristate "Intel Granite Rapids-D vGPIO support"
337 depends on X86 || COMPILE_TEST
338 select GPIOLIB_IRQCHIP
340 Select this to enable virtual GPIO support on platforms with the
343 - Intel Granite Rapids-D
345 The driver enables basic GPIO functionality and implements interrupt
346 support. The virtual GPIO driver controls GPIO lines via a firmware
347 interface. The physical GPIO pins reside on device that is external
348 from the main SoC package, such as a BMC or a CPLD.
350 To compile this driver as a module, choose M here: the module will
351 be called gpio-graniterapids.
354 tristate "Aeroflex Gaisler GRGPIO support"
355 depends on OF || COMPILE_TEST
357 select GPIOLIB_IRQCHIP
359 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
360 VHDL IP core library.
363 tristate "HiSilicon GPIO controller driver"
364 depends on ARM64 || COMPILE_TEST
366 select GPIOLIB_IRQCHIP
368 Say Y or M here to build support for the HiSilicon GPIO controller
370 This GPIO controller supports double-edge interrupt and multi-core
374 tristate "Nintendo Wii (Hollywood) GPIO"
377 select GPIOLIB_IRQCHIP
379 Select this to support the GPIO controller of the Nintendo Wii.
384 tristate "Intel ICH GPIO"
385 depends on (X86 && LPC_ICH) || (COMPILE_TEST && HAS_IOPORT)
387 Say yes here to support the GPIO functionality of a number of Intel
388 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
389 ICH9, ICH10, Series 5/3400 (e.g. Ibex Peak), Series 6/C200 (e.g.
390 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
399 bool "Intel IXP4xx GPIO"
400 depends on ARCH_IXP4XX
403 select GPIOLIB_IRQCHIP
404 select IRQ_DOMAIN_HIERARCHY
406 Say yes here to support the GPIO functionality of a number of Intel
407 IXP4xx series of chips.
412 tristate "Xylon LogiCVC GPIO support"
413 depends on MFD_SYSCON && OF
415 Say yes here to support GPIO functionality of the Xylon LogiCVC
416 programmable logic block.
419 bool "Loongson-2/3 GPIO support"
420 depends on CPU_LOONGSON2EF || CPU_LOONGSON64
422 Driver for GPIO functionality on Loongson-2F/3A/3B processors.
424 config GPIO_LOONGSON_64BIT
425 tristate "Loongson 64 bit GPIO support"
426 depends on LOONGARCH || COMPILE_TEST
430 Say yes here to support the GPIO functionality of a number of
431 Loongson series of chips. The Loongson GPIO controller supports
432 up to 60 GPIOS in total, 4 of which are dedicated GPIO pins, and
433 the remaining 56 are reused with other functions, with edge or
434 level triggered interrupts.
437 tristate "NXP LPC18XX/43XX GPIO support"
438 default y if ARCH_LPC18XX
439 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
440 select IRQ_DOMAIN_HIERARCHY
441 select GPIOLIB_IRQCHIP
443 Select this option to enable GPIO driver for
444 NXP LPC18XX/43XX devices.
447 tristate "NXP LPC32XX GPIO support"
448 depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST)
450 Select this option to enable GPIO driver for
454 tristate "GPIO support for Fujitsu MB86S7x Platforms"
456 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
459 tristate "MEN 16Z127 GPIO support"
463 Say yes here to support the MEN 16Z127 GPIO Controller.
465 config GPIO_MM_LANTIQ
466 bool "Lantiq Memory mapped GPIOs"
467 depends on LANTIQ && SOC_XWAY
468 select OF_GPIO_MM_GPIOCHIP
470 This enables support for memory mapped GPIOs on the External Bus Unit
471 (EBU) found on Lantiq SoCs. The GPIOs are output only as they are
472 created by attaching a 16-bit latch to the bus.
476 depends on PPC_MPC52xx
477 select OF_GPIO_MM_GPIOCHIP
480 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
481 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
482 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
485 select GPIOLIB_IRQCHIP
487 Say Y here if you're going to use hardware that connects to the
488 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
491 bool "Mediatek MT7621 GPIO Support"
492 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
495 select GPIOLIB_IRQCHIP
497 Say yes here to support the Mediatek MT7621 SoC GPIO device.
500 bool "Marvell Orion and EBU GPIO support" if COMPILE_TEST
501 depends on PLAT_ORION || ARCH_MVEBU || COMPILE_TEST
502 default PLAT_ORION || ARCH_MVEBU
503 select GENERIC_IRQ_CHIP
507 tristate "i.MX GPIO support"
508 depends on ARCH_MXC || COMPILE_TEST
510 select GENERIC_IRQ_CHIP
513 bool "Freescale MXS GPIO support" if COMPILE_TEST
514 depends on ARCH_MXS || COMPILE_TEST
515 default y if ARCH_MXS
517 select GENERIC_IRQ_CHIP
520 bool "Nomadik GPIO driver"
521 depends on ARCH_U8500 || ARCH_NOMADIK || MACH_EYEQ5 || COMPILE_TEST
522 select GPIOLIB_IRQCHIP
524 Say yes here to support the Nomadik SoC GPIO block. This block is also
525 used by the Mobileye EyeQ5 SoC.
527 It handles up to 32 GPIOs per bank, that can all be interrupt sources.
528 It is deeply interconnected with the associated pinctrl driver as GPIO
529 registers handle muxing ("alternate functions") as well.
531 config GPIO_NPCM_SGPIO
532 bool "Nuvoton SGPIO support"
533 depends on ARCH_NPCM || COMPILE_TEST
534 select GPIOLIB_IRQCHIP
536 Say Y here to support Nuvoton NPCM7XX/NPCM8XX SGPIO functionality.
539 tristate "Cavium OCTEON GPIO"
540 depends on CAVIUM_OCTEON_SOC
543 Say yes here to support the on-chip GPIO lines on the OCTEON
547 tristate "TI OMAP GPIO support"
548 depends on ARCH_OMAP || COMPILE_TEST
549 default y if ARCH_OMAP
550 select GENERIC_IRQ_CHIP
551 select GPIOLIB_IRQCHIP
553 Say yes here to enable GPIO support for TI OMAP SoCs.
556 tristate "PrimeCell PL061 GPIO support"
557 depends on ARM_AMBA || COMPILE_TEST
559 select GPIOLIB_IRQCHIP
561 Say yes here to support the PrimeCell PL061 GPIO device.
563 config GPIO_POLARFIRE_SOC
564 bool "Microchip FPGA GPIO support"
567 Say yes here to support the GPIO controllers on Microchip FPGAs.
570 bool "PXA GPIO support"
571 depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST
572 select GPIOLIB_IRQCHIP
574 Say yes here to support the PXA GPIO device.
577 tristate "Renesas R-Car and RZ/G GPIO support"
578 depends on ARCH_RENESAS || COMPILE_TEST
579 select GPIOLIB_IRQCHIP
581 Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs.
584 bool "RDA Micro GPIO controller support"
585 depends on ARCH_RDA || COMPILE_TEST
588 select GPIOLIB_IRQCHIP
590 Say Y here to support RDA Micro GPIO controller.
592 config GPIO_REALTEK_OTTO
593 tristate "Realtek Otto GPIO support"
594 depends on MACH_REALTEK_RTL
595 default MACH_REALTEK_RTL
597 select GPIOLIB_IRQCHIP
599 The GPIO controller on the Otto MIPS platform supports up to two
600 banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs
601 are grouped in four 8-bit wide ports.
603 When built as a module, the module will be called realtek_otto_gpio.
608 A 32-bit single register GPIO fixed in/out implementation. This
609 can be used to represent any register as a set of GPIO signals.
612 tristate "Rockchip GPIO support"
613 depends on ARCH_ROCKCHIP || COMPILE_TEST
614 select GENERIC_IRQ_CHIP
615 select GPIOLIB_IRQCHIP
616 default ARCH_ROCKCHIP
618 Say yes here to support GPIO on Rockchip SoCs.
621 tristate "Realtek DHC GPIO support"
622 depends on ARCH_REALTEK || COMPILE_TEST
624 select GPIOLIB_IRQCHIP
626 This option enables support for GPIOs found on Realtek DHC(Digital
627 Home Center) SoCs family, including RTD1295, RTD1315E, RTD1319,
628 RTD1319D, RTD1395, RTD1619 and RTD1619B.
630 Say yes here to support GPIO functionality and GPIO interrupt on
633 config GPIO_SAMA5D2_PIOBU
634 tristate "SAMA5D2 PIOBU GPIO support"
635 depends on MFD_SYSCON
637 depends on ARCH_AT91 || COMPILE_TEST
640 Say yes here to use the PIOBU pins as GPIOs.
642 PIOBU pins on the SAMA5D2 can be used as GPIOs.
643 The difference from regular GPIOs is that they
644 maintain their value during backup/self-refresh.
647 tristate "SiFive GPIO support"
649 select IRQ_DOMAIN_HIERARCHY
651 select GPIOLIB_IRQCHIP
654 Say yes here to support the GPIO device on SiFive SoCs.
657 tristate "SIOX GPIO support"
659 select GPIOLIB_IRQCHIP
661 Say yes here to support SIOX I/O devices. These are units connected
662 via a SIOX bus and have a number of fixed-direction I/O lines.
664 config GPIO_SNPS_CREG
665 bool "Synopsys GPIO via CREG (Control REGisters) driver"
666 depends on ARC || COMPILE_TEST
669 This driver supports GPIOs via CREG on various Synopsys SoCs.
670 This is a single-register MMIO GPIO driver for complex cases
671 where only several fields in register belong to GPIO lines and
672 each GPIO line owns a field with different length and on/off value.
674 config GPIO_SPACEMIT_K1
675 tristate "SPACEMIT K1 GPIO support"
676 depends on ARCH_SPACEMIT || COMPILE_TEST
679 select GPIOLIB_IRQCHIP
681 Say yes here to support the SpacemiT's K1 GPIO device.
683 config GPIO_SPEAR_SPICS
684 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
685 depends on PLAT_SPEAR
686 select GENERIC_IRQ_CHIP
688 Say yes here to support ST SPEAr SPI Chip Select as GPIO device.
691 tristate "Spreadtrum GPIO support"
692 depends on ARCH_SPRD || COMPILE_TEST
694 select GPIOLIB_IRQCHIP
696 Say yes here to support Spreadtrum GPIO device.
699 bool "XWAY STP GPIOs"
700 depends on SOC_XWAY || COMPILE_TEST
703 This enables support for the Serial To Parallel (STP) unit found on
704 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
705 that can be up to 24 bits. This peripheral is aimed at driving LEDs.
706 Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and
710 tristate "GPIO based on SYSCON"
711 depends on MFD_SYSCON && OF
713 Say yes here to support GPIO functionality though SYSCON driver.
717 select GPIOLIB_IRQCHIP
719 GPIO support for Intel Tangier and compatible platforms.
724 If built as a module its name will be gpio-tangier.
729 select GENERIC_IRQ_CHIP
733 tristate "NVIDIA Tegra GPIO support"
735 depends on ARCH_TEGRA || COMPILE_TEST
737 select GPIOLIB_IRQCHIP
738 select IRQ_DOMAIN_HIERARCHY
740 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
743 tristate "NVIDIA Tegra186 GPIO support"
744 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || ARCH_TEGRA_234_SOC
745 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || ARCH_TEGRA_234_SOC || COMPILE_TEST
747 select GPIOLIB_IRQCHIP
748 select IRQ_DOMAIN_HIERARCHY
750 Say yes here to support GPIO pins on NVIDIA Tegra186, 194 and 234 SoCs.
753 tristate "TS-4800 DIO blocks and compatibles"
755 depends on SOC_IMX51 || COMPILE_TEST
758 This driver support TS-4800 FPGA GPIO controllers.
761 tristate "Cavium ThunderX/OCTEON-TX GPIO"
762 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
764 select GPIOLIB_IRQCHIP
765 select IRQ_DOMAIN_HIERARCHY
766 select IRQ_FASTEOI_HIERARCHY_HANDLERS
768 Say yes here to support the on-chip GPIO lines on the ThunderX
769 and OCTEON-TX families of SoCs.
772 tristate "UniPhier GPIO support"
773 depends on ARCH_UNIPHIER || COMPILE_TEST
775 select IRQ_DOMAIN_HIERARCHY
777 Say yes here to support UniPhier GPIOs.
780 tristate "VF610 GPIO support"
781 default y if SOC_VF610
782 depends on ARCH_MXC || COMPILE_TEST
783 select GPIOLIB_IRQCHIP
786 Say yes here to support i.MX or Vybrid vf610 GPIOs.
789 tristate "Toshiba Visconti GPIO support"
790 depends on ARCH_VISCONTI || COMPILE_TEST
792 select GPIOLIB_IRQCHIP
794 select IRQ_DOMAIN_HIERARCHY
796 Say yes here to support GPIO on Tohisba Visconti.
799 tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver"
800 depends on MFD_WCD934X && OF_GPIO
802 This driver is to support GPIO block found on the Qualcomm Technologies
803 Inc WCD9340/WCD9341 Audio Codec.
806 bool "APM X-Gene GPIO controller support"
807 depends on ARM64 && OF_GPIO
809 This driver is to support the GPIO block within the APM X-Gene SoC
810 platform's generic flash controller. The GPIO pins are muxed with
811 the generic flash controller's address and data pins. Say yes
812 here to enable the GFC GPIO functionality.
815 tristate "APM X-Gene GPIO standby controller support"
816 depends on (ARCH_XGENE || COMPILE_TEST)
818 select GPIOLIB_IRQCHIP
819 select IRQ_DOMAIN_HIERARCHY
821 This driver supports the GPIO block within the APM X-Gene
822 Standby Domain. Say yes here to enable the GPIO functionality.
825 tristate "Xilinx GPIO support"
826 select GPIOLIB_IRQCHIP
828 Say yes here to support the Xilinx FPGA GPIO device.
831 tristate "Cavium ThunderX2 GPIO support"
832 depends on ARCH_THUNDER2 || COMPILE_TEST
833 select GPIOLIB_IRQCHIP
835 This driver provides support for GPIO interface on Cavium's ThunderX2
836 CN99XX SoCs (Originally from Netlogic XLP).
841 bool "Xtensa GPIO32 support"
843 depends on HAVE_XTENSA_GPIO32
846 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
847 and EXPSTATE (output) ports.
850 bool "LSI ZEVIO SoC memory mapped GPIOs"
853 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
856 tristate "Xilinx Zynq GPIO support"
857 depends on ARCH_ZYNQ || ARCH_ZYNQMP || COMPILE_TEST
858 select GPIOLIB_IRQCHIP
860 Say yes here to support Xilinx Zynq GPIO controller.
862 config GPIO_ZYNQMP_MODEPIN
863 tristate "ZynqMP ps-mode pin GPIO configuration driver"
864 depends on ZYNQMP_FIRMWARE || COMPILE_TEST
865 default ZYNQMP_FIRMWARE
867 Say yes here to support the ZynqMP ps-mode pin GPIO configuration
870 This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE
871 is 4-bits boot mode pins. It sets and gets the status of
872 the ps-mode pin. Every pin can be configured as input/output.
874 config GPIO_LOONGSON1
875 tristate "Loongson1 GPIO support"
876 depends on MACH_LOONGSON32
879 Say Y or M here to support GPIO on Loongson1 SoCs.
882 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
884 This option enables driver for GPIO on AMD's Fusion Controller Hub,
885 as found on G-series SOCs (e.g. GX-412TC).
887 Note: This driver doesn't register itself automatically, as it
888 needs to be provided with platform-specific configuration.
889 (See e.g. CONFIG_PCENGINES_APU2.)
892 bool "MStar MSC313 GPIO support"
893 depends on ARCH_MSTARV7 || COMPILE_TEST
895 select GPIOLIB_IRQCHIP
896 select IRQ_DOMAIN_HIERARCHY
898 Say Y here to support the main GPIO block on MStar/SigmaStar
902 tristate "IDT 79RC3243X GPIO support"
903 depends on MIKROTIK_RB532 || COMPILE_TEST
905 select GPIOLIB_IRQCHIP
907 Select this option to enable GPIO driver for
908 IDT 79RC3243X-based devices like Mikrotik RB532.
910 To compile this driver as a module, choose M here: the module will
911 be called gpio-idt3243x.
915 menu "Port-mapped I/O GPIO drivers"
916 depends on X86 && HAS_IOPORT # I/O space access
919 tristate "VIA VX855/VX875 GPIO"
924 Support access to the VX855/VX875 GPIO lines through the GPIO library.
926 This driver provides common support for accessing the device.
927 Additional drivers must be enabled in order to use the
928 functionality of the device.
934 Enables support for the i8255 interface library functions. The i8255
935 interface library provides functions to facilitate communication with
936 interfaces compatible with the venerable Intel 8255 Programmable
937 Peripheral Interface (PPI). The Intel 8255 PPI chip was first released
938 in the early 1970s but compatible interfaces are nowadays typically
939 found embedded in larger VLSI processing chips and FPGA components.
941 If built as a module its name will be gpio-i8255.
943 config GPIO_104_DIO_48E
944 tristate "ACCES 104-DIO-48E GPIO support"
949 select GPIOLIB_IRQCHIP
953 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
954 104-DIO-24E). The base port addresses for the devices may be
955 configured via the base module parameter. The interrupt line numbers
956 for the devices may be configured via the irq module parameter.
958 config GPIO_104_IDIO_16
959 tristate "ACCES 104-IDIO-16 GPIO support"
965 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
966 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
967 base port addresses for the devices may be configured via the base
968 module parameter. The interrupt line numbers for the devices may be
969 configured via the irq module parameter.
971 config GPIO_104_IDI_48
972 tristate "ACCES 104-IDI-48 GPIO support"
977 select GPIOLIB_IRQCHIP
980 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
981 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
982 the devices may be configured via the base module parameter. The
983 interrupt line numbers for the devices may be configured via the irq
987 tristate "Fintek and Nuvoton Super-I/O GPIO support"
989 This option enables support for GPIOs found on Fintek Super-I/O
990 chips F71869, F71869A, F71882FG, F71889F and F81866.
991 As well as Nuvoton Super-I/O chip NCT6126D.
993 To compile this driver as a module, choose M here: the module will
994 be called f7188x-gpio.
997 tristate "Diamond Systems GPIO-MM GPIO support"
1003 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
1005 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
1006 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
1007 support for these 48 channels of digital I/O.
1009 The base port addresses for the devices may be configured via the base
1010 array module parameter.
1013 tristate "IT87xx GPIO support"
1015 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
1017 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
1018 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
1021 To compile this driver as a module, choose M here: the module will
1022 be called gpio_it87.
1025 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
1026 depends on (X86 || COMPILE_TEST) && ACPI
1028 select GPIOLIB_IRQCHIP
1030 Say yes here to support GPIO interface on Intel Poulsbo SCH,
1031 Intel Tunnel Creek processor, Intel Centerton processor or
1032 Intel Quark X1000 SoC.
1034 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
1035 powered by the core power rail and are turned off during sleep
1036 modes (S3 and higher). The remaining four GPIOs are powered by
1037 the Intel SCH suspend power supply. These GPIOs remain
1038 active during S3. The suspend-powered GPIOs can be used to wake the
1039 system from the Suspend-to-RAM state.
1041 The Intel Tunnel Creek processor has 5 GPIOs powered by the
1042 core power rail and 9 from suspend power supply.
1044 The Intel Centerton processor has a total of 30 GPIO pins.
1045 Twenty-one are powered by the core power rail and 9 from the
1046 suspend power supply.
1048 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
1049 power well and 6 from the suspend power well.
1052 tristate "SMSC SCH311x SuperI/O GPIO"
1054 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
1055 SCH3116 "Super I/O" chipsets.
1057 To compile this driver as a module, choose M here: the module will
1058 be called gpio-sch311x.
1061 tristate "TS-5500 DIO blocks and compatibles"
1062 depends on TS5500 || COMPILE_TEST
1064 This driver supports Digital I/O exposed by pin blocks found on some
1065 Technologic Systems platforms. It includes, but is not limited to, 3
1066 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
1070 tristate "Winbond Super I/O GPIO support"
1073 This option enables support for GPIOs found on Winbond Super I/O
1075 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
1078 You will need to provide a module parameter "gpios", or a
1079 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
1080 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
1082 To compile this driver as a module, choose M here: the module will
1083 be called gpio-winbond.
1086 tristate "WinSystems WS16C48 GPIO support"
1090 select GPIOLIB_IRQCHIP
1093 Enables GPIO support for the WinSystems WS16C48. The base port
1094 addresses for the devices may be configured via the base module
1095 parameter. The interrupt line numbers for the devices may be
1096 configured via the irq module parameter.
1100 menu "I2C GPIO expanders"
1104 tristate "Avionic Design N-bit GPIO expander"
1106 select GPIOLIB_IRQCHIP
1108 This option enables support for N GPIOs found on Avionic Design
1109 I2C GPIO expanders. The register space will be extended by powers
1110 of two, so the controller will need to accommodate for that. For
1111 example: if a controller provides 48 pins, 6 registers will be
1112 enough to represent all pins, but the driver will assume a
1113 register layout for 64 pins (8 registers).
1116 tristate "FXL6408 I2C GPIO expander"
1120 GPIO driver for Fairchild Semiconductor FXL6408 GPIO expander.
1122 To compile this driver as a module, choose M here: the module will
1123 be called gpio-fxl6408.
1126 tristate "DS4520 I2C GPIO expander"
1130 GPIO driver for ADI DS4520 I2C-based GPIO expander.
1131 Say yes here to enable the GPIO driver for the ADI DS4520 chip.
1133 To compile this driver as a module, choose M here: the module will
1134 be called gpio-ds4520.
1137 tristate "Gateworks PLD GPIO Expander"
1140 Say yes here to provide access to the Gateworks I2C PLD GPIO
1141 Expander. This is used at least on the Cambria GW2358-4.
1144 tristate "Maxim MAX7300 GPIO expander"
1147 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
1150 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
1152 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
1153 Port Expanders. Each IO port on these chips has a fixed role of
1154 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
1155 Input and Output (designed by 'P'). The combinations are listed
1158 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
1159 max7322 (4I4O), max7323 (4P4O)
1161 16 bits: max7324 (8I8O), max7325 (8P8O),
1162 max7326 (4I12O), max7327 (4P12O)
1164 Board setup code must specify the model to use, and the start
1165 number for these GPIOs.
1167 config GPIO_MAX732X_IRQ
1168 bool "Interrupt controller support for MAX732x"
1169 depends on GPIO_MAX732X=y
1170 select GPIOLIB_IRQCHIP
1172 Say yes here to enable the max732x to be used as an interrupt
1173 controller. It requires the driver to be built in the kernel.
1176 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
1179 Say yes here to provide access to several register-oriented
1180 SMBus I/O expanders, made mostly by NXP or TI. Compatible
1183 4 bits: pca9536, pca9537
1185 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
1186 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
1188 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
1193 40 bits: pca9505, pca9698
1195 config GPIO_PCA953X_IRQ
1196 bool "Interrupt controller support for PCA953x"
1197 depends on GPIO_PCA953X
1198 select GPIOLIB_IRQCHIP
1200 Say yes here to enable the pca953x to be used as an interrupt
1204 tristate "PCA9570 4-Bit I2C GPO expander"
1206 Say yes here to enable the GPO driver for the NXP PCA9570 chip.
1208 To compile this driver as a module, choose M here: the module will
1209 be called gpio-pca9570.
1212 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
1213 select GPIOLIB_IRQCHIP
1216 Say yes here to provide access to most "quasi-bidirectional" I2C
1217 GPIO expanders used for additional digital outputs or inputs.
1218 Most of these parts are from NXP, though TI is a second source for
1219 some of them. Compatible models include:
1221 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
1222 pca9670, pca9672, pca9674, pca9674a,
1225 16 bits: pcf8575, pcf8575c, pca8575,
1226 pca9671, pca9673, pca9675
1228 Your board setup code will need to declare the expanders in
1229 use, and assign numbers to the GPIOs they expose. Those GPIOs
1230 can then be used from drivers and other kernel code, just like
1231 other GPIOs, but only accessible from task contexts.
1233 This driver provides an in-kernel interface to those GPIOs using
1234 platform-neutral GPIO calls.
1236 config GPIO_TPIC2810
1237 tristate "TPIC2810 8-Bit I2C GPO expander"
1239 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
1241 To compile this driver as a module, choose M here: the module will
1242 be called gpio-tpic2810.
1245 tristate "Technologic Systems FPGA I2C GPIO"
1246 depends on SOC_IMX6 || COMPILE_TEST
1249 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
1250 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
1254 menu "MFD GPIO expanders"
1257 tristate "GPIO Support for ADP5520 PMIC"
1258 depends on PMIC_ADP5520
1260 This option enables support for on-chip GPIO found
1261 on Analog Devices ADP5520 PMICs.
1264 tristate "GPIO Support for ADP5585"
1265 depends on MFD_ADP5585
1267 This option enables support for the GPIO function found in the Analog
1270 config GPIO_ALTERA_A10SR
1271 tristate "Altera Arria10 System Resource GPIO"
1272 depends on MFD_ALTERA_A10SR
1274 Driver for Arria10 Development Kit GPIO expansion which
1275 includes reads of pushbuttons and DIP switches as well
1279 tristate "Wolfson Microelectronics Arizona class devices"
1280 depends on MFD_ARIZONA
1282 Support for GPIOs on Wolfson Arizona class devices.
1285 tristate "ROHM BD71815 PMIC GPIO support"
1286 depends on MFD_ROHM_BD71828
1288 Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs
1289 available on the ROHM PMIC.
1291 This driver can also be built as a module. If so, the module
1292 will be called gpio-bd71815.
1295 tristate "ROHM BD71828 GPIO support"
1296 depends on MFD_ROHM_BD71828
1298 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs
1299 available on the ROHM PMIC in total. The GPIOs are limited to
1300 outputs only and pins must be configured to GPIO outputs by
1301 OTP. Enable this only if you want to use these pins as outputs.
1303 This driver can also be built as a module. If so, the module
1304 will be called gpio-bd71828.
1306 config GPIO_BD9571MWV
1307 tristate "ROHM BD9571 GPIO support"
1308 depends on MFD_BD9571MWV
1310 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
1311 available on the ROHM PMIC in total, both of which can also
1312 generate interrupts.
1314 This driver can also be built as a module. If so, the module
1315 will be called gpio-bd9571mwv.
1318 tristate "Congatec Board Controller GPIO support"
1321 Select this option to enable GPIO support for the Congatec Board
1324 This driver can also be built as a module. If so, the module will be
1328 tristate "ChromeOS EC GPIO support"
1331 GPIO driver for the ChromeOS Embedded Controller (EC). GPIOs
1332 cannot be set unless the system is unlocked.
1334 This driver can also be built as a module. If so, the module
1335 will be called gpio-cros-ec.
1337 config GPIO_CRYSTAL_COVE
1338 tristate "GPIO support for Crystal Cove PMIC"
1339 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1340 select GPIOLIB_IRQCHIP
1342 Support for GPIO pins on Crystal Cove PMIC.
1344 Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC
1347 This driver can also be built as a module. If so, the module will be
1348 called gpio-crystalcove.
1351 tristate "AMD CS5535/CS5536 GPIO support"
1352 depends on X86 || MIPS || COMPILE_TEST
1353 depends on MFD_CS5535
1355 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1356 can be used for quite a number of things. The CS5535/6 is found on
1357 AMD Geode and Lemote Yeeloong devices.
1362 tristate "Dialog DA9052 GPIO"
1363 depends on PMIC_DA9052
1365 Say yes here to enable the GPIO driver for the DA9052 chip.
1368 tristate "Dialog Semiconductor DA9055 GPIO"
1369 depends on MFD_DA9055
1371 Say yes here to enable the GPIO driver for the DA9055 chip.
1373 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1374 be controlled by this driver.
1376 If driver is built as a module it will be called gpio-da9055.
1379 tristate "Diolan DLN2 GPIO support"
1381 select GPIOLIB_IRQCHIP
1384 Select this option to enable GPIO driver for the Diolan DLN2
1387 This driver can also be built as a module. If so, the module
1388 will be called gpio-dln2.
1391 bool "HTC EGPIO support"
1392 depends on ARM || COMPILE_TEST
1394 This driver supports the CPLD egpio chip present on
1395 several HTC phones. It provides basic support for input
1396 pins, output pins, and IRQs.
1398 config GPIO_ELKHARTLAKE
1399 tristate "Intel Elkhart Lake PSE GPIO support"
1400 depends on X86 || COMPILE_TEST
1403 Select this option to enable GPIO support for Intel Elkhart Lake
1406 To compile this driver as a module, choose M here: the module will
1407 be called gpio-elkhartlake.
1409 config GPIO_JANZ_TTL
1410 tristate "Janz VMOD-TTL Digital IO Module"
1411 depends on MFD_JANZ_CMODIO
1413 This enables support for the Janz VMOD-TTL Digital IO module.
1414 This driver provides support for driving the pins in output
1415 mode only. Input mode is not supported.
1418 tristate "Kontron ETX / COMexpress GPIO"
1419 depends on MFD_KEMPLD
1421 This enables support for the PLD GPIO interface on some Kontron ETX
1422 and COMexpress (ETXexpress) modules.
1424 This driver can also be built as a module. If so, the module will be
1428 tristate "INTEL La Jolla Cove Adapter GPIO support"
1430 select GPIOLIB_IRQCHIP
1433 Select this option to enable GPIO driver for the INTEL
1434 La Jolla Cove Adapter (LJCA) board.
1436 This driver can also be built as a module. If so, the module
1437 will be called gpio-ljca.
1440 tristate "TI/National Semiconductor LP3943 GPIO expander"
1441 depends on MFD_LP3943
1443 GPIO driver for LP3943 MFD.
1444 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1445 Open drain outputs are required for this usage.
1448 tristate "TI LP873X GPO"
1449 depends on MFD_TI_LP873X
1451 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1454 This driver can also be built as a module. If so, the module will be
1458 tristate "TI LP87565 GPIO"
1459 depends on MFD_TI_LP87565
1461 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1464 This driver can also be built as a module. If so, the module will be
1465 called gpio-lp87565.
1468 tristate "Cirrus Logic Madera class codecs"
1469 depends on PINCTRL_MADERA
1471 Support for GPIOs on Cirrus Logic Madera class codecs.
1473 config GPIO_MAX77620
1474 tristate "GPIO support for PMIC MAX77620 and MAX20024"
1475 depends on MFD_MAX77620
1476 select GPIOLIB_IRQCHIP
1478 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1479 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1480 driver also provides interrupt support for each of the GPIOs.
1481 Say yes here to enable the max77620 to be used as GPIO controller.
1483 config GPIO_MAX77650
1484 tristate "Maxim MAX77650/77651 GPIO support"
1485 depends on MFD_MAX77650
1487 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1488 These chips have a single pin that can be configured as GPIO.
1490 config GPIO_MAX77759
1491 tristate "Maxim Integrated MAX77759 GPIO support"
1492 depends on MFD_MAX77759
1493 default MFD_MAX77759
1494 select GPIOLIB_IRQCHIP
1496 GPIO driver for MAX77759 PMIC from Maxim Integrated.
1497 There are two GPIOs available on these chips in total, both of
1498 which can also generate interrupts.
1500 This driver can also be built as a module. If so, the module will be
1501 called gpio-max77759.
1504 bool "TI PALMAS series PMICs GPIO"
1505 depends on MFD_PALMAS
1507 Select this option to enable GPIO driver for the TI PALMAS
1510 config GPIO_PMIC_EIC_SPRD
1511 tristate "Spreadtrum PMIC EIC support"
1512 depends on MFD_SC27XX_PMIC || COMPILE_TEST
1514 select GPIOLIB_IRQCHIP
1516 Say yes here to support Spreadtrum PMIC EIC device.
1519 bool "RICOH RC5T583 GPIO"
1520 depends on MFD_RC5T583
1522 Select this option to enable GPIO driver for the Ricoh RC5T583
1524 This driver provides the support for driving/reading the GPIO pins
1525 of RC5T583 device through standard GPIO library.
1527 config GPIO_SL28CPLD
1528 tristate "Kontron sl28cpld GPIO support"
1529 depends on MFD_SL28CPLD || COMPILE_TEST
1531 select GPIOLIB_IRQCHIP
1534 This enables support for the GPIOs found on the Kontron sl28 CPLD.
1536 This driver can also be built as a module. If so, the module will be
1537 called gpio-sl28cpld.
1541 depends on MFD_STMPE
1543 select GPIOLIB_IRQCHIP
1545 This enables support for the GPIOs found on the STMPE I/O
1549 bool "TC3589X GPIOs"
1550 depends on MFD_TC3589X
1552 select GPIOLIB_IRQCHIP
1554 This enables support for the GPIOs found on the TC3589X
1557 config GPIO_TIMBERDALE
1558 bool "Support for timberdale GPIO IP"
1559 depends on MFD_TIMBERDALE
1560 select GPIOLIB_IRQCHIP
1562 Add support for the GPIO IP in the timberdale FPGA.
1564 config GPIO_TN48M_CPLD
1565 tristate "Delta Networks TN48M switch CPLD GPIO driver"
1566 depends on MFD_TN48M_CPLD || COMPILE_TEST
1569 This enables support for the GPIOs found on the Delta
1570 Networks TN48M switch Lattice CPLD. It provides 12 pins in total,
1571 they are input-only or output-only type.
1573 This driver can also be built as a module. If so, the
1574 module will be called gpio-tn48m.
1576 config GPIO_TPS65086
1577 tristate "TI TPS65086 GPO"
1578 depends on MFD_TPS65086
1580 This driver supports the GPO on TI TPS65086x PMICs.
1582 config GPIO_TPS65218
1583 tristate "TPS65218 GPIO"
1584 depends on MFD_TPS65218
1586 Select this option to enable GPIO driver for the TPS65218
1589 config GPIO_TPS65219
1590 tristate "TPS65219 GPIO"
1591 depends on MFD_TPS65219
1592 default MFD_TPS65219
1594 Select this option to enable GPIO driver for the TPS65219 chip
1596 GPIO0 is statically configured as either input or output prior to
1597 Linux boot. It is used for MULTI_DEVICE_ENABLE function. This setting
1598 is statically configured by NVM. GPIO0 can't be used as a generic
1599 GPIO. It's either a GPO when MULTI_DEVICE_EN=0 or a GPI when
1602 This driver can also be built as a module. If so, the module will be
1603 called gpio_tps65219.
1605 config GPIO_TPS6586X
1606 bool "TPS6586X GPIO"
1607 depends on MFD_TPS6586X
1609 Select this option to enable GPIO driver for the TPS6586X
1612 config GPIO_TPS65910
1613 bool "TPS65910 GPIO"
1614 depends on MFD_TPS65910
1616 Select this option to enable GPIO driver for the TPS65910
1619 config GPIO_TPS65912
1620 tristate "TI TPS65912 GPIO"
1621 depends on MFD_TPS65912
1623 This driver supports TPS65912 GPIO chip.
1625 config GPIO_TPS68470
1626 tristate "TPS68470 GPIO"
1627 depends on INTEL_SKL_INT3472
1629 Select this option to enable GPIO driver for the TPS68470
1631 There are 7 GPIOs and few sensor-related GPIOs supported
1632 by the TPS68470. While the 7 GPIOs can be configured as
1633 input or output as appropriate, the sensor related GPIOs
1634 are "output only" GPIOs.
1637 tristate "TQ-Systems TQMx86 GPIO"
1638 depends on MFD_TQMX86 || COMPILE_TEST
1639 depends on HAS_IOPORT_MAP
1640 select GPIOLIB_IRQCHIP
1642 This driver supports GPIO on the TQMX86 IO controller.
1645 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1646 depends on TWL4030_CORE
1648 Say yes here to access the GPIO signals of various multi-function
1649 power management chips from Texas Instruments.
1652 tristate "TWL6040 GPO"
1653 depends on TWL6040_CORE
1655 Say yes here to access the GPO signals of twl6040
1656 audio chip from Texas Instruments.
1658 config GPIO_WHISKEY_COVE
1659 tristate "GPIO support for Whiskey Cove PMIC"
1660 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1661 select GPIOLIB_IRQCHIP
1663 Support for GPIO pins on Whiskey Cove PMIC.
1665 Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC
1668 This driver can also be built as a module. If so, the module will be
1672 tristate "WM831x GPIOs"
1673 depends on MFD_WM831X
1675 Say yes here to access the GPIO signals of WM831x power management
1676 chips from Wolfson Microelectronics.
1679 tristate "WM8350 GPIOs"
1680 depends on MFD_WM8350
1682 Say yes here to access the GPIO signals of WM8350 power management
1683 chips from Wolfson Microelectronics.
1686 tristate "WM8994 GPIOs"
1687 depends on MFD_WM8994
1689 Say yes here to access the GPIO signals of WM8994 audio hub
1690 CODECs from Wolfson Microelectronics.
1694 menu "PCI GPIO expanders"
1698 tristate "AMD 8111 GPIO driver"
1699 depends on X86 || COMPILE_TEST
1700 depends on HAS_IOPORT_MAP
1702 The AMD 8111 southbridge contains 32 GPIO pins which can be used.
1704 Note that usually system firmware/ACPI handles GPIO pins on their
1705 own and users might easily break their systems with uncareful usage
1711 tristate "BT8XX GPIO abuser"
1712 depends on VIDEO_BT848=n || COMPILE_TEST
1714 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1715 as a cheap PCI GPIO card.
1717 This chip can be found on Miro, Hauppauge and STB TV-cards.
1719 The card needs to be physically altered for using it as a
1720 GPIO card. For more information on how to build a GPIO card
1721 from a BT8xx TV card, see the documentation file at
1722 Documentation/driver-api/gpio/bt8xxgpio.rst
1726 config GPIO_MERRIFIELD
1727 tristate "Intel Merrifield GPIO support"
1728 depends on X86_INTEL_MID
1731 Say Y here to support Intel Merrifield GPIO.
1734 tristate "Mellanox BlueField SoC GPIO"
1735 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1738 Say Y here if you want GPIO support on Mellanox BlueField SoC.
1741 tristate "Mellanox BlueField 2 SoC GPIO"
1742 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1744 select GPIOLIB_IRQCHIP
1746 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC.
1749 tristate "Mellanox BlueField 3 SoC GPIO"
1750 depends on (MELLANOX_PLATFORM && ARM64) || COMPILE_TEST
1752 select GPIOLIB_IRQCHIP
1754 Say Y if you want GPIO support on Mellanox BlueField 3 SoC.
1755 This GPIO controller supports interrupt handling and enables the
1756 manipulation of certain GPIO pins.
1757 This controller should be used in parallel with pinctrl-mlxbf3 to
1758 control the desired GPIOs.
1759 This driver can also be built as a module called mlxbf3-gpio.
1762 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1763 depends on X86 || COMPILE_TEST
1764 select GENERIC_IRQ_CHIP
1766 ML7213 is companion chip for Intel Atom E6xx series.
1767 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output
1768 Hub) which is for IVI (In-Vehicle Infotainment) use.
1769 This driver can access the IOH's GPIO device.
1772 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO"
1773 depends on X86_32 || MIPS || COMPILE_TEST
1774 select GENERIC_IRQ_CHIP
1776 This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff,
1777 which is an IOH (Input/Output Hub) for x86 embedded processor.
1778 This driver can access PCH GPIO device.
1780 This driver also can be used for LAPIS Semiconductor IOH (Input/
1781 Output Hub), ML7223 and ML7831.
1782 ML7223 IOH is for MP (Media Phone) use.
1783 ML7831 IOH is for general purpose use.
1784 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1785 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1787 config GPIO_PCI_IDIO_16
1788 tristate "ACCES PCI-IDIO-16 GPIO support"
1792 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1793 generated when any of the inputs change state (low to high or high to
1794 low). Input filter control is not supported by this driver, and the
1795 input filters are deactivated by this driver.
1797 config GPIO_PCIE_IDIO_24
1798 tristate "ACCES PCIe-IDIO-24 GPIO support"
1801 select GPIOLIB_IRQCHIP
1804 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1805 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1806 when any of the inputs change state (low to high or high to low).
1807 Input filter control is not supported by this driver, and the input
1808 filters are deactivated by this driver.
1811 tristate "RDC R-321x GPIO support"
1815 Support for the RDC R321x SoC GPIOs over southbridge
1816 PCI configuration space.
1818 config GPIO_SODAVILLE
1819 bool "Intel Sodaville GPIO support"
1820 depends on X86 && OF
1822 select GENERIC_IRQ_CHIP
1824 Say Y here to support Intel Sodaville GPIO.
1828 menu "SPI GPIO expanders"
1829 depends on SPI_MASTER
1832 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1834 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1835 shift registers. This driver can be used to provide access
1836 to more GPIO outputs.
1838 config GPIO_MAX3191X
1839 tristate "Maxim MAX3191x industrial serializer"
1842 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1843 MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1844 chip to make 8 digital 24V inputs available via SPI. Supports
1845 CRC checksums to guard against electromagnetic interference,
1846 as well as undervoltage and overtemperature detection.
1849 tristate "Maxim MAX7301 GPIO expander"
1852 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1855 tristate "Freescale MC33880 high-side/low-side switch"
1857 SPI driver for Freescale MC33880 high-side/low-side switch.
1858 This provides GPIO interface supporting inputs and outputs.
1861 tristate "Generic parallel-in/serial-out shift register"
1863 GPIO driver for SPI compatible parallel-in/serial-out shift
1864 registers. These are input only devices.
1867 tristate "EXAR XRA1403 16-bit GPIO expander"
1870 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1873 tristate "Turris Mox Moxtet bus GPIO expander"
1876 Say yes here if you are building for the Turris Mox router.
1877 This is the driver needed for configuring the GPIOs via the Moxtet
1878 bus. For example the Mox module with SFP cage needs this driver
1879 so that phylink can use corresponding GPIOs.
1883 menu "USB GPIO expanders"
1886 config GPIO_VIPERBOARD
1887 tristate "Viperboard GPIO a & b support"
1888 depends on MFD_VIPERBOARD
1890 Say yes here to access the GPIO signals of Nano River
1891 Technologies Viperboard. There are two GPIO chips on the
1892 board: gpioa and gpiob.
1893 See viperboard API specification and Nano
1894 River Tech's viperboard.h for detailed meaning
1895 of the module parameters.
1898 tristate "FTDI MPSSE GPIO support"
1899 select GPIOLIB_IRQCHIP
1901 GPIO driver for FTDI's MPSSE interface. These can do input and
1902 output. Each MPSSE provides 16 IO pins.
1906 menu "Virtual GPIO drivers"
1908 config GPIO_AGGREGATOR
1909 tristate "GPIO Aggregator"
1911 select DEV_SYNC_PROBE
1913 Say yes here to enable the GPIO Aggregator, which provides a way to
1914 aggregate existing GPIO lines into a new virtual GPIO chip.
1915 This can serve the following purposes:
1916 - Assign permissions for a collection of GPIO lines to a user,
1917 - Export a collection of GPIO lines to a virtual machine,
1918 - Provide a generic driver for a GPIO-operated device in an
1919 industrial control context, to be operated from userspace using
1920 the GPIO chardev interface.
1923 tristate "GPIO latch driver"
1925 Say yes here to enable a driver for GPIO multiplexers based on latches
1926 connected to other GPIOs.
1929 tristate "GPIO Testing Driver (DEPRECATED)"
1932 This module is DEPRECATED. Please consider using gpio-sim instead.
1934 This enables GPIO Testing driver, which provides a way to test GPIO
1935 subsystem through sysfs (or char device) and debugfs.
1936 User could use it through the script in
1937 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1941 tristate "VirtIO GPIO support"
1943 select GPIOLIB_IRQCHIP
1945 Say Y here to enable guest support for virtio-based GPIO controllers.
1947 These virtual GPIOs can be routed to real GPIOs or attached to
1948 simulators on the host (like QEMU).
1951 tristate "GPIO Simulator Module"
1954 select DEV_SYNC_PROBE
1956 This enables the GPIO simulator - a configfs-based GPIO testing
1961 menu "GPIO Debugging utilities"
1963 config GPIO_SLOPPY_LOGIC_ANALYZER
1964 tristate "Sloppy GPIO logic analyzer"
1965 depends on (GPIOLIB || COMPILE_TEST) && CPUSETS && DEBUG_FS && EXPERT
1967 This option enables support for a sloppy logic analyzer using polled
1968 GPIOs. Use the 'tools/gpio/gpio-sloppy-logic-analyzer' script with
1969 this driver. The script will make it easier to use and will also
1970 isolate a CPU for the polling task. Note that this is a last resort
1971 analyzer which can be affected by latencies, non-deterministic code
1972 paths, or NMIs. However, for e.g. remote development, it may be useful
1973 to get a first view and aid further debugging.
1975 If this driver is built as a module it will be called
1976 'gpio-sloppy-logic-analyzer'.
1978 config GPIO_VIRTUSER
1979 tristate "GPIO Virtual User Testing Module"
1983 select DEV_SYNC_PROBE
1985 Say Y here to enable the configurable, configfs-based virtual GPIO
1986 consumer testing driver.
1988 This driver is aimed as a helper in spotting any regressions in
1989 hot-unplug handling in GPIOLIB.
1995 config DEV_SYNC_PROBE