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
205 Turn on GPIO support for Broadcom "Kona" chips.
207 config GPIO_BCM_XGS_IPROC
208 tristate "BRCM XGS iProc GPIO support"
209 depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST)
211 select GPIOLIB_IRQCHIP
212 default ARCH_BCM_IPROC
214 Say yes here to enable GPIO support for Broadcom XGS iProc SoCs.
217 tristate "BRCMSTB GPIO support"
218 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
219 depends on OF_GPIO && (ARCH_BRCMSTB || ARCH_BCM2835 || BMIPS_GENERIC || COMPILE_TEST)
223 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
226 tristate "Cadence GPIO support"
229 select GPIOLIB_IRQCHIP
231 Say yes here to enable support for Cadence GPIO controller.
234 tristate "CLPS711X GPIO support"
235 depends on ARCH_CLPS711X || COMPILE_TEST
238 Say yes here to support GPIO on CLPS711X SoCs.
241 tristate "TI Davinci/Keystone GPIO support"
242 default y if ARCH_DAVINCI
243 depends on ((ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3)) || COMPILE_TEST
245 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
248 tristate "Synopsys DesignWare APB GPIO driver"
250 select GPIOLIB_IRQCHIP
252 Say Y or M here to build support for the Synopsys DesignWare APB
256 tristate "Spreadtrum EIC support"
257 depends on ARCH_SPRD || COMPILE_TEST
259 select GPIOLIB_IRQCHIP
261 Say yes here to support Spreadtrum EIC device.
264 tristate "Emma Mobile GPIO"
265 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
267 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
270 tristate "Airoha GPIO support"
271 depends on ARCH_AIROHA
274 select GPIOLIB_IRQCHIP
276 Say Y or M here to support the GPIO controller block on the
277 Airoha EN7523 SoC. It supports two banks of 32 GPIOs.
281 depends on ARCH_EP93XX
283 select GPIOLIB_IRQCHIP
286 tristate "Support for GPIO pins on XR17V352/354/358"
287 depends on SERIAL_8250_EXAR
290 Selecting this option will enable handling of GPIO pins present
291 on Exar XR17V352/354/358 chips.
294 bool "GE FPGA based GPIO"
295 depends on GE_FPGA || COMPILE_TEST
298 Support for common GPIO functionality provided on some GE Single Board
301 This driver provides basic support (configure as input or output, read
302 and write pin state) for GPIO implemented in a number of GE single
305 config GPIO_FTGPIO010
306 bool "Faraday FTGPIO010 GPIO"
309 select GPIOLIB_IRQCHIP
310 default (ARCH_GEMINI || ARCH_MOXART)
312 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
313 Cortina systems Gemini platforms, Moxa ART and others.
315 config GPIO_GENERIC_PLATFORM
316 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
319 Say yes here to support basic platform_device memory-mapped GPIO controllers.
321 config GPIO_GRANITERAPIDS
322 tristate "Intel Granite Rapids-D vGPIO support"
323 depends on X86 || COMPILE_TEST
324 select GPIOLIB_IRQCHIP
326 Select this to enable virtual GPIO support on platforms with the
329 - Intel Granite Rapids-D
331 The driver enables basic GPIO functionality and implements interrupt
332 support. The virtual GPIO driver controls GPIO lines via a firmware
333 interface. The physical GPIO pins reside on device that is external
334 from the main SoC package, such as a BMC or a CPLD.
336 To compile this driver as a module, choose M here: the module will
337 be called gpio-graniterapids.
340 tristate "Aeroflex Gaisler GRGPIO support"
341 depends on OF || COMPILE_TEST
345 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
346 VHDL IP core library.
349 tristate "HiSilicon GPIO controller driver"
350 depends on ARM64 || COMPILE_TEST
352 select GPIOLIB_IRQCHIP
354 Say Y or M here to build support for the HiSilicon GPIO controller
356 This GPIO controller supports double-edge interrupt and multi-core
360 tristate "Nintendo Wii (Hollywood) GPIO"
363 select GPIOLIB_IRQCHIP
365 Select this to support the GPIO controller of the Nintendo Wii.
370 tristate "Intel ICH GPIO"
374 Say yes here to support the GPIO functionality of a number of Intel
375 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
376 ICH9, ICH10, Series 5/3400 (e.g. Ibex Peak), Series 6/C200 (e.g.
377 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
386 bool "Intel IXP4xx GPIO"
387 depends on ARCH_IXP4XX
390 select GPIOLIB_IRQCHIP
391 select IRQ_DOMAIN_HIERARCHY
393 Say yes here to support the GPIO functionality of a number of Intel
394 IXP4xx series of chips.
399 tristate "Xylon LogiCVC GPIO support"
400 depends on MFD_SYSCON && OF
402 Say yes here to support GPIO functionality of the Xylon LogiCVC
403 programmable logic block.
406 bool "Loongson-2/3 GPIO support"
407 depends on CPU_LOONGSON2EF || CPU_LOONGSON64
409 Driver for GPIO functionality on Loongson-2F/3A/3B processors.
411 config GPIO_LOONGSON_64BIT
412 tristate "Loongson 64 bit GPIO support"
413 depends on LOONGARCH || COMPILE_TEST
417 Say yes here to support the GPIO functionality of a number of
418 Loongson series of chips. The Loongson GPIO controller supports
419 up to 60 GPIOS in total, 4 of which are dedicated GPIO pins, and
420 the remaining 56 are reused with other functions, with edge or
421 level triggered interrupts.
424 tristate "NXP LPC18XX/43XX GPIO support"
425 default y if ARCH_LPC18XX
426 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
427 select IRQ_DOMAIN_HIERARCHY
429 Select this option to enable GPIO driver for
430 NXP LPC18XX/43XX devices.
433 tristate "NXP LPC32XX GPIO support"
434 depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST)
436 Select this option to enable GPIO driver for
440 tristate "GPIO support for Fujitsu MB86S7x Platforms"
442 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
445 tristate "MEN 16Z127 GPIO support"
449 Say yes here to support the MEN 16Z127 GPIO Controller.
451 config GPIO_MM_LANTIQ
452 bool "Lantiq Memory mapped GPIOs"
453 depends on LANTIQ && SOC_XWAY
454 select OF_GPIO_MM_GPIOCHIP
456 This enables support for memory mapped GPIOs on the External Bus Unit
457 (EBU) found on Lantiq SoCs. The GPIOs are output only as they are
458 created by attaching a 16-bit latch to the bus.
462 depends on PPC_MPC52xx
463 select OF_GPIO_MM_GPIOCHIP
466 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
467 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
468 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
473 Say Y here if you're going to use hardware that connects to the
474 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
477 bool "Mediatek MT7621 GPIO Support"
478 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
481 select GPIOLIB_IRQCHIP
483 Say yes here to support the Mediatek MT7621 SoC GPIO device.
486 bool "Marvell Orion and EBU GPIO support" if COMPILE_TEST
487 depends on PLAT_ORION || ARCH_MVEBU || COMPILE_TEST
488 default PLAT_ORION || ARCH_MVEBU
489 select GENERIC_IRQ_CHIP
493 tristate "i.MX GPIO support"
494 depends on ARCH_MXC || COMPILE_TEST
496 select GENERIC_IRQ_CHIP
499 bool "Freescale MXS GPIO support" if COMPILE_TEST
500 depends on ARCH_MXS || COMPILE_TEST
501 default y if ARCH_MXS
503 select GENERIC_IRQ_CHIP
506 bool "Nomadik GPIO driver"
507 depends on ARCH_U8500 || ARCH_NOMADIK || MACH_EYEQ5 || COMPILE_TEST
508 select GPIOLIB_IRQCHIP
510 Say yes here to support the Nomadik SoC GPIO block. This block is also
511 used by the Mobileye EyeQ5 SoC.
513 It handles up to 32 GPIOs per bank, that can all be interrupt sources.
514 It is deeply interconnected with the associated pinctrl driver as GPIO
515 registers handle muxing ("alternate functions") as well.
517 config GPIO_NPCM_SGPIO
518 bool "Nuvoton SGPIO support"
519 depends on ARCH_NPCM || COMPILE_TEST
520 select GPIOLIB_IRQCHIP
522 Say Y here to support Nuvoton NPCM7XX/NPCM8XX SGPIO functionality.
525 tristate "Cavium OCTEON GPIO"
526 depends on CAVIUM_OCTEON_SOC
529 Say yes here to support the on-chip GPIO lines on the OCTEON
533 tristate "TI OMAP GPIO support"
534 depends on ARCH_OMAP || COMPILE_TEST
535 default y if ARCH_OMAP
536 select GENERIC_IRQ_CHIP
537 select GPIOLIB_IRQCHIP
539 Say yes here to enable GPIO support for TI OMAP SoCs.
542 tristate "PrimeCell PL061 GPIO support"
545 select GPIOLIB_IRQCHIP
547 Say yes here to support the PrimeCell PL061 GPIO device.
549 config GPIO_POLARFIRE_SOC
550 bool "Microchip FPGA GPIO support"
553 Say yes here to support the GPIO controllers on Microchip FPGAs.
556 bool "PXA GPIO support"
557 depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST
559 Say yes here to support the PXA GPIO device.
562 tristate "Renesas R-Car and RZ/G GPIO support"
563 depends on ARCH_RENESAS || COMPILE_TEST
564 select GPIOLIB_IRQCHIP
566 Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs.
569 bool "RDA Micro GPIO controller support"
570 depends on ARCH_RDA || COMPILE_TEST
573 select GPIOLIB_IRQCHIP
575 Say Y here to support RDA Micro GPIO controller.
577 config GPIO_REALTEK_OTTO
578 tristate "Realtek Otto GPIO support"
579 depends on MACH_REALTEK_RTL
580 default MACH_REALTEK_RTL
582 select GPIOLIB_IRQCHIP
584 The GPIO controller on the Otto MIPS platform supports up to two
585 banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs
586 are grouped in four 8-bit wide ports.
588 When built as a module, the module will be called realtek_otto_gpio.
593 A 32-bit single register GPIO fixed in/out implementation. This
594 can be used to represent any register as a set of GPIO signals.
597 tristate "Rockchip GPIO support"
598 depends on ARCH_ROCKCHIP || COMPILE_TEST
599 select GENERIC_IRQ_CHIP
600 select GPIOLIB_IRQCHIP
601 default ARCH_ROCKCHIP
603 Say yes here to support GPIO on Rockchip SoCs.
606 tristate "Realtek DHC GPIO support"
607 depends on ARCH_REALTEK
609 select GPIOLIB_IRQCHIP
611 This option enables support for GPIOs found on Realtek DHC(Digital
612 Home Center) SoCs family, including RTD1295, RTD1315E, RTD1319,
613 RTD1319D, RTD1395, RTD1619 and RTD1619B.
615 Say yes here to support GPIO functionality and GPIO interrupt on
618 config GPIO_SAMA5D2_PIOBU
619 tristate "SAMA5D2 PIOBU GPIO support"
620 depends on MFD_SYSCON
622 depends on ARCH_AT91 || COMPILE_TEST
625 Say yes here to use the PIOBU pins as GPIOs.
627 PIOBU pins on the SAMA5D2 can be used as GPIOs.
628 The difference from regular GPIOs is that they
629 maintain their value during backup/self-refresh.
632 tristate "SiFive GPIO support"
634 select IRQ_DOMAIN_HIERARCHY
636 select GPIOLIB_IRQCHIP
639 Say yes here to support the GPIO device on SiFive SoCs.
642 tristate "SIOX GPIO support"
644 select GPIOLIB_IRQCHIP
646 Say yes here to support SIOX I/O devices. These are units connected
647 via a SIOX bus and have a number of fixed-direction I/O lines.
649 config GPIO_SNPS_CREG
650 bool "Synopsys GPIO via CREG (Control REGisters) driver"
651 depends on ARC || COMPILE_TEST
654 This driver supports GPIOs via CREG on various Synopsys SoCs.
655 This is a single-register MMIO GPIO driver for complex cases
656 where only several fields in register belong to GPIO lines and
657 each GPIO line owns a field with different length and on/off value.
659 config GPIO_SPEAR_SPICS
660 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
661 depends on PLAT_SPEAR
662 select GENERIC_IRQ_CHIP
664 Say yes here to support ST SPEAr SPI Chip Select as GPIO device.
667 tristate "Spreadtrum GPIO support"
668 depends on ARCH_SPRD || COMPILE_TEST
670 select GPIOLIB_IRQCHIP
672 Say yes here to support Spreadtrum GPIO device.
675 bool "XWAY STP GPIOs"
676 depends on SOC_XWAY || COMPILE_TEST
679 This enables support for the Serial To Parallel (STP) unit found on
680 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
681 that can be up to 24 bits. This peripheral is aimed at driving LEDs.
682 Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and
686 tristate "GPIO based on SYSCON"
687 depends on MFD_SYSCON && OF
689 Say yes here to support GPIO functionality though SYSCON driver.
693 select GPIOLIB_IRQCHIP
695 GPIO support for Intel Tangier and compatible platforms.
700 If built as a module its name will be gpio-tangier.
705 select GENERIC_IRQ_CHIP
709 tristate "NVIDIA Tegra GPIO support"
711 depends on ARCH_TEGRA || COMPILE_TEST
713 select GPIOLIB_IRQCHIP
714 select IRQ_DOMAIN_HIERARCHY
716 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
719 tristate "NVIDIA Tegra186 GPIO support"
720 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || ARCH_TEGRA_234_SOC
721 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || ARCH_TEGRA_234_SOC || COMPILE_TEST
723 select GPIOLIB_IRQCHIP
724 select IRQ_DOMAIN_HIERARCHY
726 Say yes here to support GPIO pins on NVIDIA Tegra186, 194 and 234 SoCs.
729 tristate "TS-4800 DIO blocks and compatibles"
731 depends on SOC_IMX51 || COMPILE_TEST
734 This driver support TS-4800 FPGA GPIO controllers.
737 tristate "Cavium ThunderX/OCTEON-TX GPIO"
738 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
740 select GPIOLIB_IRQCHIP
741 select IRQ_DOMAIN_HIERARCHY
742 select IRQ_FASTEOI_HIERARCHY_HANDLERS
744 Say yes here to support the on-chip GPIO lines on the ThunderX
745 and OCTEON-TX families of SoCs.
748 tristate "UniPhier GPIO support"
749 depends on ARCH_UNIPHIER || COMPILE_TEST
751 select IRQ_DOMAIN_HIERARCHY
753 Say yes here to support UniPhier GPIOs.
756 bool "VF610 GPIO support"
757 default y if SOC_VF610
758 depends on ARCH_MXC || COMPILE_TEST
759 select GPIOLIB_IRQCHIP
761 Say yes here to support i.MX or Vybrid vf610 GPIOs.
764 tristate "Toshiba Visconti GPIO support"
765 depends on ARCH_VISCONTI || COMPILE_TEST
767 select GPIOLIB_IRQCHIP
769 select IRQ_DOMAIN_HIERARCHY
771 Say yes here to support GPIO on Tohisba Visconti.
774 tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver"
775 depends on MFD_WCD934X && OF_GPIO
777 This driver is to support GPIO block found on the Qualcomm Technologies
778 Inc WCD9340/WCD9341 Audio Codec.
781 bool "APM X-Gene GPIO controller support"
782 depends on ARM64 && OF_GPIO
784 This driver is to support the GPIO block within the APM X-Gene SoC
785 platform's generic flash controller. The GPIO pins are muxed with
786 the generic flash controller's address and data pins. Say yes
787 here to enable the GFC GPIO functionality.
790 tristate "APM X-Gene GPIO standby controller support"
791 depends on (ARCH_XGENE || COMPILE_TEST)
793 select GPIOLIB_IRQCHIP
794 select IRQ_DOMAIN_HIERARCHY
796 This driver supports the GPIO block within the APM X-Gene
797 Standby Domain. Say yes here to enable the GPIO functionality.
800 tristate "Xilinx GPIO support"
801 select GPIOLIB_IRQCHIP
803 Say yes here to support the Xilinx FPGA GPIO device.
806 tristate "Cavium ThunderX2 GPIO support"
807 depends on ARCH_THUNDER2 || COMPILE_TEST
808 select GPIOLIB_IRQCHIP
810 This driver provides support for GPIO interface on Cavium's ThunderX2
811 CN99XX SoCs (Originally from Netlogic XLP).
816 bool "Xtensa GPIO32 support"
818 depends on HAVE_XTENSA_GPIO32
821 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
822 and EXPSTATE (output) ports.
825 bool "LSI ZEVIO SoC memory mapped GPIOs"
828 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
831 tristate "Xilinx Zynq GPIO support"
832 depends on ARCH_ZYNQ || ARCH_ZYNQMP
833 select GPIOLIB_IRQCHIP
835 Say yes here to support Xilinx Zynq GPIO controller.
837 config GPIO_ZYNQMP_MODEPIN
838 tristate "ZynqMP ps-mode pin GPIO configuration driver"
839 depends on ZYNQMP_FIRMWARE
840 default ZYNQMP_FIRMWARE
842 Say yes here to support the ZynqMP ps-mode pin GPIO configuration
845 This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE
846 is 4-bits boot mode pins. It sets and gets the status of
847 the ps-mode pin. Every pin can be configured as input/output.
849 config GPIO_LOONGSON1
850 tristate "Loongson1 GPIO support"
851 depends on MACH_LOONGSON32
854 Say Y or M here to support GPIO on Loongson1 SoCs.
857 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
859 This option enables driver for GPIO on AMD's Fusion Controller Hub,
860 as found on G-series SOCs (e.g. GX-412TC).
862 Note: This driver doesn't register itself automatically, as it
863 needs to be provided with platform-specific configuration.
864 (See e.g. CONFIG_PCENGINES_APU2.)
867 bool "MStar MSC313 GPIO support"
868 depends on ARCH_MSTARV7
870 select GPIOLIB_IRQCHIP
871 select IRQ_DOMAIN_HIERARCHY
873 Say Y here to support the main GPIO block on MStar/SigmaStar
877 tristate "IDT 79RC3243X GPIO support"
878 depends on MIKROTIK_RB532 || COMPILE_TEST
880 select GPIOLIB_IRQCHIP
882 Select this option to enable GPIO driver for
883 IDT 79RC3243X-based devices like Mikrotik RB532.
885 To compile this driver as a module, choose M here: the module will
886 be called gpio-idt3243x.
890 menu "Port-mapped I/O GPIO drivers"
891 depends on X86 && HAS_IOPORT # I/O space access
894 tristate "VIA VX855/VX875 GPIO"
899 Support access to the VX855/VX875 GPIO lines through the GPIO library.
901 This driver provides common support for accessing the device.
902 Additional drivers must be enabled in order to use the
903 functionality of the device.
909 Enables support for the i8255 interface library functions. The i8255
910 interface library provides functions to facilitate communication with
911 interfaces compatible with the venerable Intel 8255 Programmable
912 Peripheral Interface (PPI). The Intel 8255 PPI chip was first released
913 in the early 1970s but compatible interfaces are nowadays typically
914 found embedded in larger VLSI processing chips and FPGA components.
916 If built as a module its name will be gpio-i8255.
918 config GPIO_104_DIO_48E
919 tristate "ACCES 104-DIO-48E GPIO support"
924 select GPIOLIB_IRQCHIP
928 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
929 104-DIO-24E). The base port addresses for the devices may be
930 configured via the base module parameter. The interrupt line numbers
931 for the devices may be configured via the irq module parameter.
933 config GPIO_104_IDIO_16
934 tristate "ACCES 104-IDIO-16 GPIO support"
940 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
941 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
942 base port addresses for the devices may be configured via the base
943 module parameter. The interrupt line numbers for the devices may be
944 configured via the irq module parameter.
946 config GPIO_104_IDI_48
947 tristate "ACCES 104-IDI-48 GPIO support"
952 select GPIOLIB_IRQCHIP
955 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
956 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
957 the devices may be configured via the base module parameter. The
958 interrupt line numbers for the devices may be configured via the irq
962 tristate "Fintek and Nuvoton Super-I/O GPIO support"
964 This option enables support for GPIOs found on Fintek Super-I/O
965 chips F71869, F71869A, F71882FG, F71889F and F81866.
966 As well as Nuvoton Super-I/O chip NCT6126D.
968 To compile this driver as a module, choose M here: the module will
969 be called f7188x-gpio.
972 tristate "Diamond Systems GPIO-MM GPIO support"
978 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
980 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
981 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
982 support for these 48 channels of digital I/O.
984 The base port addresses for the devices may be configured via the base
985 array module parameter.
988 tristate "IT87xx GPIO support"
990 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
992 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
993 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
996 To compile this driver as a module, choose M here: the module will
1000 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
1001 depends on (X86 || COMPILE_TEST) && ACPI
1003 select GPIOLIB_IRQCHIP
1005 Say yes here to support GPIO interface on Intel Poulsbo SCH,
1006 Intel Tunnel Creek processor, Intel Centerton processor or
1007 Intel Quark X1000 SoC.
1009 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
1010 powered by the core power rail and are turned off during sleep
1011 modes (S3 and higher). The remaining four GPIOs are powered by
1012 the Intel SCH suspend power supply. These GPIOs remain
1013 active during S3. The suspend-powered GPIOs can be used to wake the
1014 system from the Suspend-to-RAM state.
1016 The Intel Tunnel Creek processor has 5 GPIOs powered by the
1017 core power rail and 9 from suspend power supply.
1019 The Intel Centerton processor has a total of 30 GPIO pins.
1020 Twenty-one are powered by the core power rail and 9 from the
1021 suspend power supply.
1023 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
1024 power well and 6 from the suspend power well.
1027 tristate "SMSC SCH311x SuperI/O GPIO"
1029 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
1030 SCH3116 "Super I/O" chipsets.
1032 To compile this driver as a module, choose M here: the module will
1033 be called gpio-sch311x.
1036 tristate "TS-5500 DIO blocks and compatibles"
1037 depends on TS5500 || COMPILE_TEST
1039 This driver supports Digital I/O exposed by pin blocks found on some
1040 Technologic Systems platforms. It includes, but is not limited to, 3
1041 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
1045 tristate "Winbond Super I/O GPIO support"
1048 This option enables support for GPIOs found on Winbond Super I/O
1050 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
1053 You will need to provide a module parameter "gpios", or a
1054 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
1055 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
1057 To compile this driver as a module, choose M here: the module will
1058 be called gpio-winbond.
1061 tristate "WinSystems WS16C48 GPIO support"
1065 select GPIOLIB_IRQCHIP
1068 Enables GPIO support for the WinSystems WS16C48. The base port
1069 addresses for the devices may be configured via the base module
1070 parameter. The interrupt line numbers for the devices may be
1071 configured via the irq module parameter.
1075 menu "I2C GPIO expanders"
1079 tristate "Avionic Design N-bit GPIO expander"
1081 select GPIOLIB_IRQCHIP
1083 This option enables support for N GPIOs found on Avionic Design
1084 I2C GPIO expanders. The register space will be extended by powers
1085 of two, so the controller will need to accommodate for that. For
1086 example: if a controller provides 48 pins, 6 registers will be
1087 enough to represent all pins, but the driver will assume a
1088 register layout for 64 pins (8 registers).
1091 tristate "FXL6408 I2C GPIO expander"
1095 GPIO driver for Fairchild Semiconductor FXL6408 GPIO expander.
1097 To compile this driver as a module, choose M here: the module will
1098 be called gpio-fxl6408.
1101 tristate "DS4520 I2C GPIO expander"
1105 GPIO driver for ADI DS4520 I2C-based GPIO expander.
1106 Say yes here to enable the GPIO driver for the ADI DS4520 chip.
1108 To compile this driver as a module, choose M here: the module will
1109 be called gpio-ds4520.
1112 tristate "Gateworks PLD GPIO Expander"
1115 Say yes here to provide access to the Gateworks I2C PLD GPIO
1116 Expander. This is used at least on the Cambria GW2358-4.
1119 tristate "Maxim MAX7300 GPIO expander"
1122 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
1125 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
1127 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
1128 Port Expanders. Each IO port on these chips has a fixed role of
1129 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
1130 Input and Output (designed by 'P'). The combinations are listed
1133 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
1134 max7322 (4I4O), max7323 (4P4O)
1136 16 bits: max7324 (8I8O), max7325 (8P8O),
1137 max7326 (4I12O), max7327 (4P12O)
1139 Board setup code must specify the model to use, and the start
1140 number for these GPIOs.
1142 config GPIO_MAX732X_IRQ
1143 bool "Interrupt controller support for MAX732x"
1144 depends on GPIO_MAX732X=y
1145 select GPIOLIB_IRQCHIP
1147 Say yes here to enable the max732x to be used as an interrupt
1148 controller. It requires the driver to be built in the kernel.
1151 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
1154 Say yes here to provide access to several register-oriented
1155 SMBus I/O expanders, made mostly by NXP or TI. Compatible
1158 4 bits: pca9536, pca9537
1160 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
1161 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
1163 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
1168 40 bits: pca9505, pca9698
1170 config GPIO_PCA953X_IRQ
1171 bool "Interrupt controller support for PCA953x"
1172 depends on GPIO_PCA953X
1173 select GPIOLIB_IRQCHIP
1175 Say yes here to enable the pca953x to be used as an interrupt
1179 tristate "PCA9570 4-Bit I2C GPO expander"
1181 Say yes here to enable the GPO driver for the NXP PCA9570 chip.
1183 To compile this driver as a module, choose M here: the module will
1184 be called gpio-pca9570.
1187 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
1188 select GPIOLIB_IRQCHIP
1191 Say yes here to provide access to most "quasi-bidirectional" I2C
1192 GPIO expanders used for additional digital outputs or inputs.
1193 Most of these parts are from NXP, though TI is a second source for
1194 some of them. Compatible models include:
1196 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
1197 pca9670, pca9672, pca9674, pca9674a,
1200 16 bits: pcf8575, pcf8575c, pca8575,
1201 pca9671, pca9673, pca9675
1203 Your board setup code will need to declare the expanders in
1204 use, and assign numbers to the GPIOs they expose. Those GPIOs
1205 can then be used from drivers and other kernel code, just like
1206 other GPIOs, but only accessible from task contexts.
1208 This driver provides an in-kernel interface to those GPIOs using
1209 platform-neutral GPIO calls.
1211 config GPIO_TPIC2810
1212 tristate "TPIC2810 8-Bit I2C GPO expander"
1214 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
1216 To compile this driver as a module, choose M here: the module will
1217 be called gpio-tpic2810.
1220 tristate "Technologic Systems FPGA I2C GPIO"
1221 depends on SOC_IMX6 || COMPILE_TEST
1224 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
1225 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
1229 menu "MFD GPIO expanders"
1232 tristate "GPIO Support for ADP5520 PMIC"
1233 depends on PMIC_ADP5520
1235 This option enables support for on-chip GPIO found
1236 on Analog Devices ADP5520 PMICs.
1239 tristate "GPIO Support for ADP5585"
1240 depends on MFD_ADP5585
1242 This option enables support for the GPIO function found in the Analog
1245 config GPIO_ALTERA_A10SR
1246 tristate "Altera Arria10 System Resource GPIO"
1247 depends on MFD_ALTERA_A10SR
1249 Driver for Arria10 Development Kit GPIO expansion which
1250 includes reads of pushbuttons and DIP switches as well
1254 tristate "Wolfson Microelectronics Arizona class devices"
1255 depends on MFD_ARIZONA
1257 Support for GPIOs on Wolfson Arizona class devices.
1260 tristate "ROHM BD71815 PMIC GPIO support"
1261 depends on MFD_ROHM_BD71828
1263 Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs
1264 available on the ROHM PMIC.
1266 This driver can also be built as a module. If so, the module
1267 will be called gpio-bd71815.
1270 tristate "ROHM BD71828 GPIO support"
1271 depends on MFD_ROHM_BD71828
1273 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs
1274 available on the ROHM PMIC in total. The GPIOs are limited to
1275 outputs only and pins must be configured to GPIO outputs by
1276 OTP. Enable this only if you want to use these pins as outputs.
1278 This driver can also be built as a module. If so, the module
1279 will be called gpio-bd71828.
1281 config GPIO_BD9571MWV
1282 tristate "ROHM BD9571 GPIO support"
1283 depends on MFD_BD9571MWV
1285 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
1286 available on the ROHM PMIC in total, both of which can also
1287 generate interrupts.
1289 This driver can also be built as a module. If so, the module
1290 will be called gpio-bd9571mwv.
1293 tristate "Congatec Board Controller GPIO support"
1296 Select this option to enable GPIO support for the Congatec Board
1299 This driver can also be built as a module. If so, the module will be
1303 tristate "ChromeOS EC GPIO support"
1306 GPIO driver for the ChromeOS Embedded Controller (EC). GPIOs
1307 cannot be set unless the system is unlocked.
1309 This driver can also be built as a module. If so, the module
1310 will be called gpio-cros-ec.
1312 config GPIO_CRYSTAL_COVE
1313 tristate "GPIO support for Crystal Cove PMIC"
1314 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1315 select GPIOLIB_IRQCHIP
1317 Support for GPIO pins on Crystal Cove PMIC.
1319 Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC
1322 This driver can also be built as a module. If so, the module will be
1323 called gpio-crystalcove.
1326 tristate "AMD CS5535/CS5536 GPIO support"
1327 depends on X86 || MIPS || COMPILE_TEST
1328 depends on MFD_CS5535
1330 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1331 can be used for quite a number of things. The CS5535/6 is found on
1332 AMD Geode and Lemote Yeeloong devices.
1337 tristate "Dialog DA9052 GPIO"
1338 depends on PMIC_DA9052
1340 Say yes here to enable the GPIO driver for the DA9052 chip.
1343 tristate "Dialog Semiconductor DA9055 GPIO"
1344 depends on MFD_DA9055
1346 Say yes here to enable the GPIO driver for the DA9055 chip.
1348 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1349 be controlled by this driver.
1351 If driver is built as a module it will be called gpio-da9055.
1354 tristate "Diolan DLN2 GPIO support"
1356 select GPIOLIB_IRQCHIP
1359 Select this option to enable GPIO driver for the Diolan DLN2
1362 This driver can also be built as a module. If so, the module
1363 will be called gpio-dln2.
1366 bool "HTC EGPIO support"
1369 This driver supports the CPLD egpio chip present on
1370 several HTC phones. It provides basic support for input
1371 pins, output pins, and IRQs.
1373 config GPIO_ELKHARTLAKE
1374 tristate "Intel Elkhart Lake PSE GPIO support"
1375 depends on X86 || COMPILE_TEST
1378 Select this option to enable GPIO support for Intel Elkhart Lake
1381 To compile this driver as a module, choose M here: the module will
1382 be called gpio-elkhartlake.
1384 config GPIO_JANZ_TTL
1385 tristate "Janz VMOD-TTL Digital IO Module"
1386 depends on MFD_JANZ_CMODIO
1388 This enables support for the Janz VMOD-TTL Digital IO module.
1389 This driver provides support for driving the pins in output
1390 mode only. Input mode is not supported.
1393 tristate "Kontron ETX / COMexpress GPIO"
1394 depends on MFD_KEMPLD
1396 This enables support for the PLD GPIO interface on some Kontron ETX
1397 and COMexpress (ETXexpress) modules.
1399 This driver can also be built as a module. If so, the module will be
1403 tristate "INTEL La Jolla Cove Adapter GPIO support"
1405 select GPIOLIB_IRQCHIP
1408 Select this option to enable GPIO driver for the INTEL
1409 La Jolla Cove Adapter (LJCA) board.
1411 This driver can also be built as a module. If so, the module
1412 will be called gpio-ljca.
1415 tristate "TI/National Semiconductor LP3943 GPIO expander"
1416 depends on MFD_LP3943
1418 GPIO driver for LP3943 MFD.
1419 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1420 Open drain outputs are required for this usage.
1423 tristate "TI LP873X GPO"
1424 depends on MFD_TI_LP873X
1426 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1429 This driver can also be built as a module. If so, the module will be
1433 tristate "TI LP87565 GPIO"
1434 depends on MFD_TI_LP87565
1436 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1439 This driver can also be built as a module. If so, the module will be
1440 called gpio-lp87565.
1443 tristate "Cirrus Logic Madera class codecs"
1444 depends on PINCTRL_MADERA
1446 Support for GPIOs on Cirrus Logic Madera class codecs.
1448 config GPIO_MAX77620
1449 tristate "GPIO support for PMIC MAX77620 and MAX20024"
1450 depends on MFD_MAX77620
1451 select GPIOLIB_IRQCHIP
1453 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1454 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1455 driver also provides interrupt support for each of the GPIOs.
1456 Say yes here to enable the max77620 to be used as GPIO controller.
1458 config GPIO_MAX77650
1459 tristate "Maxim MAX77650/77651 GPIO support"
1460 depends on MFD_MAX77650
1462 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1463 These chips have a single pin that can be configured as GPIO.
1466 bool "TI PALMAS series PMICs GPIO"
1467 depends on MFD_PALMAS
1469 Select this option to enable GPIO driver for the TI PALMAS
1472 config GPIO_PMIC_EIC_SPRD
1473 tristate "Spreadtrum PMIC EIC support"
1474 depends on MFD_SC27XX_PMIC || COMPILE_TEST
1476 select GPIOLIB_IRQCHIP
1478 Say yes here to support Spreadtrum PMIC EIC device.
1481 bool "RICOH RC5T583 GPIO"
1482 depends on MFD_RC5T583
1484 Select this option to enable GPIO driver for the Ricoh RC5T583
1486 This driver provides the support for driving/reading the GPIO pins
1487 of RC5T583 device through standard GPIO library.
1489 config GPIO_SL28CPLD
1490 tristate "Kontron sl28cpld GPIO support"
1491 depends on MFD_SL28CPLD || COMPILE_TEST
1493 select GPIOLIB_IRQCHIP
1496 This enables support for the GPIOs found on the Kontron sl28 CPLD.
1498 This driver can also be built as a module. If so, the module will be
1499 called gpio-sl28cpld.
1503 depends on MFD_STMPE
1505 select GPIOLIB_IRQCHIP
1507 This enables support for the GPIOs found on the STMPE I/O
1511 bool "TC3589X GPIOs"
1512 depends on MFD_TC3589X
1514 select GPIOLIB_IRQCHIP
1516 This enables support for the GPIOs found on the TC3589X
1519 config GPIO_TIMBERDALE
1520 bool "Support for timberdale GPIO IP"
1521 depends on MFD_TIMBERDALE
1523 Add support for the GPIO IP in the timberdale FPGA.
1525 config GPIO_TN48M_CPLD
1526 tristate "Delta Networks TN48M switch CPLD GPIO driver"
1527 depends on MFD_TN48M_CPLD
1530 This enables support for the GPIOs found on the Delta
1531 Networks TN48M switch Lattice CPLD. It provides 12 pins in total,
1532 they are input-only or output-only type.
1534 This driver can also be built as a module. If so, the
1535 module will be called gpio-tn48m.
1537 config GPIO_TPS65086
1538 tristate "TI TPS65086 GPO"
1539 depends on MFD_TPS65086
1541 This driver supports the GPO on TI TPS65086x PMICs.
1543 config GPIO_TPS65218
1544 tristate "TPS65218 GPIO"
1545 depends on MFD_TPS65218
1547 Select this option to enable GPIO driver for the TPS65218
1550 config GPIO_TPS65219
1551 tristate "TPS65219 GPIO"
1552 depends on MFD_TPS65219
1553 default MFD_TPS65219
1555 Select this option to enable GPIO driver for the TPS65219 chip
1557 GPIO0 is statically configured as either input or output prior to
1558 Linux boot. It is used for MULTI_DEVICE_ENABLE function. This setting
1559 is statically configured by NVM. GPIO0 can't be used as a generic
1560 GPIO. It's either a GPO when MULTI_DEVICE_EN=0 or a GPI when
1563 This driver can also be built as a module. If so, the module will be
1564 called gpio_tps65219.
1566 config GPIO_TPS6586X
1567 bool "TPS6586X GPIO"
1568 depends on MFD_TPS6586X
1570 Select this option to enable GPIO driver for the TPS6586X
1573 config GPIO_TPS65910
1574 bool "TPS65910 GPIO"
1575 depends on MFD_TPS65910
1577 Select this option to enable GPIO driver for the TPS65910
1580 config GPIO_TPS65912
1581 tristate "TI TPS65912 GPIO"
1582 depends on MFD_TPS65912
1584 This driver supports TPS65912 GPIO chip.
1586 config GPIO_TPS68470
1587 tristate "TPS68470 GPIO"
1588 depends on INTEL_SKL_INT3472
1590 Select this option to enable GPIO driver for the TPS68470
1592 There are 7 GPIOs and few sensor-related GPIOs supported
1593 by the TPS68470. While the 7 GPIOs can be configured as
1594 input or output as appropriate, the sensor related GPIOs
1595 are "output only" GPIOs.
1598 tristate "TQ-Systems TQMx86 GPIO"
1599 depends on MFD_TQMX86 || COMPILE_TEST
1600 depends on HAS_IOPORT_MAP
1601 select GPIOLIB_IRQCHIP
1603 This driver supports GPIO on the TQMX86 IO controller.
1606 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1607 depends on TWL4030_CORE
1609 Say yes here to access the GPIO signals of various multi-function
1610 power management chips from Texas Instruments.
1613 tristate "TWL6040 GPO"
1614 depends on TWL6040_CORE
1616 Say yes here to access the GPO signals of twl6040
1617 audio chip from Texas Instruments.
1619 config GPIO_WHISKEY_COVE
1620 tristate "GPIO support for Whiskey Cove PMIC"
1621 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1622 select GPIOLIB_IRQCHIP
1624 Support for GPIO pins on Whiskey Cove PMIC.
1626 Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC
1629 This driver can also be built as a module. If so, the module will be
1633 tristate "WM831x GPIOs"
1634 depends on MFD_WM831X
1636 Say yes here to access the GPIO signals of WM831x power management
1637 chips from Wolfson Microelectronics.
1640 tristate "WM8350 GPIOs"
1641 depends on MFD_WM8350
1643 Say yes here to access the GPIO signals of WM8350 power management
1644 chips from Wolfson Microelectronics.
1647 tristate "WM8994 GPIOs"
1648 depends on MFD_WM8994
1650 Say yes here to access the GPIO signals of WM8994 audio hub
1651 CODECs from Wolfson Microelectronics.
1655 menu "PCI GPIO expanders"
1659 tristate "AMD 8111 GPIO driver"
1660 depends on X86 || COMPILE_TEST
1661 depends on HAS_IOPORT_MAP
1663 The AMD 8111 southbridge contains 32 GPIO pins which can be used.
1665 Note that usually system firmware/ACPI handles GPIO pins on their
1666 own and users might easily break their systems with uncareful usage
1672 tristate "BT8XX GPIO abuser"
1673 depends on VIDEO_BT848=n
1675 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1676 as a cheap PCI GPIO card.
1678 This chip can be found on Miro, Hauppauge and STB TV-cards.
1680 The card needs to be physically altered for using it as a
1681 GPIO card. For more information on how to build a GPIO card
1682 from a BT8xx TV card, see the documentation file at
1683 Documentation/driver-api/gpio/bt8xxgpio.rst
1687 config GPIO_MERRIFIELD
1688 tristate "Intel Merrifield GPIO support"
1689 depends on X86_INTEL_MID
1692 Say Y here to support Intel Merrifield GPIO.
1695 tristate "Mellanox BlueField SoC GPIO"
1696 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1699 Say Y here if you want GPIO support on Mellanox BlueField SoC.
1702 tristate "Mellanox BlueField 2 SoC GPIO"
1703 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1705 select GPIOLIB_IRQCHIP
1707 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC.
1710 tristate "Mellanox BlueField 3 SoC GPIO"
1711 depends on (MELLANOX_PLATFORM && ARM64) || COMPILE_TEST
1713 select GPIOLIB_IRQCHIP
1715 Say Y if you want GPIO support on Mellanox BlueField 3 SoC.
1716 This GPIO controller supports interrupt handling and enables the
1717 manipulation of certain GPIO pins.
1718 This controller should be used in parallel with pinctrl-mlxbf3 to
1719 control the desired GPIOs.
1720 This driver can also be built as a module called mlxbf3-gpio.
1723 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1724 depends on X86 || COMPILE_TEST
1725 select GENERIC_IRQ_CHIP
1727 ML7213 is companion chip for Intel Atom E6xx series.
1728 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output
1729 Hub) which is for IVI (In-Vehicle Infotainment) use.
1730 This driver can access the IOH's GPIO device.
1733 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO"
1734 depends on X86_32 || MIPS || COMPILE_TEST
1735 select GENERIC_IRQ_CHIP
1737 This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff,
1738 which is an IOH (Input/Output Hub) for x86 embedded processor.
1739 This driver can access PCH GPIO device.
1741 This driver also can be used for LAPIS Semiconductor IOH (Input/
1742 Output Hub), ML7223 and ML7831.
1743 ML7223 IOH is for MP (Media Phone) use.
1744 ML7831 IOH is for general purpose use.
1745 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1746 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1748 config GPIO_PCI_IDIO_16
1749 tristate "ACCES PCI-IDIO-16 GPIO support"
1753 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1754 generated when any of the inputs change state (low to high or high to
1755 low). Input filter control is not supported by this driver, and the
1756 input filters are deactivated by this driver.
1758 config GPIO_PCIE_IDIO_24
1759 tristate "ACCES PCIe-IDIO-24 GPIO support"
1762 select GPIOLIB_IRQCHIP
1765 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1766 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1767 when any of the inputs change state (low to high or high to low).
1768 Input filter control is not supported by this driver, and the input
1769 filters are deactivated by this driver.
1772 tristate "RDC R-321x GPIO support"
1776 Support for the RDC R321x SoC GPIOs over southbridge
1777 PCI configuration space.
1779 config GPIO_SODAVILLE
1780 bool "Intel Sodaville GPIO support"
1781 depends on X86 && OF
1783 select GENERIC_IRQ_CHIP
1785 Say Y here to support Intel Sodaville GPIO.
1789 menu "SPI GPIO expanders"
1790 depends on SPI_MASTER
1793 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1796 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1797 shift registers. This driver can be used to provide access
1798 to more GPIO outputs.
1800 config GPIO_MAX3191X
1801 tristate "Maxim MAX3191x industrial serializer"
1804 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1805 MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1806 chip to make 8 digital 24V inputs available via SPI. Supports
1807 CRC checksums to guard against electromagnetic interference,
1808 as well as undervoltage and overtemperature detection.
1811 tristate "Maxim MAX7301 GPIO expander"
1814 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1817 tristate "Freescale MC33880 high-side/low-side switch"
1819 SPI driver for Freescale MC33880 high-side/low-side switch.
1820 This provides GPIO interface supporting inputs and outputs.
1823 tristate "Generic parallel-in/serial-out shift register"
1825 GPIO driver for SPI compatible parallel-in/serial-out shift
1826 registers. These are input only devices.
1829 tristate "EXAR XRA1403 16-bit GPIO expander"
1832 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1835 tristate "Turris Mox Moxtet bus GPIO expander"
1838 Say yes here if you are building for the Turris Mox router.
1839 This is the driver needed for configuring the GPIOs via the Moxtet
1840 bus. For example the Mox module with SFP cage needs this driver
1841 so that phylink can use corresponding GPIOs.
1845 menu "USB GPIO expanders"
1848 config GPIO_VIPERBOARD
1849 tristate "Viperboard GPIO a & b support"
1850 depends on MFD_VIPERBOARD
1852 Say yes here to access the GPIO signals of Nano River
1853 Technologies Viperboard. There are two GPIO chips on the
1854 board: gpioa and gpiob.
1855 See viperboard API specification and Nano
1856 River Tech's viperboard.h for detailed meaning
1857 of the module parameters.
1860 tristate "FTDI MPSSE GPIO support"
1861 select GPIOLIB_IRQCHIP
1863 GPIO driver for FTDI's MPSSE interface. These can do input and
1864 output. Each MPSSE provides 16 IO pins.
1868 menu "Virtual GPIO drivers"
1870 config GPIO_AGGREGATOR
1871 tristate "GPIO Aggregator"
1873 Say yes here to enable the GPIO Aggregator, which provides a way to
1874 aggregate existing GPIO lines into a new virtual GPIO chip.
1875 This can serve the following purposes:
1876 - Assign permissions for a collection of GPIO lines to a user,
1877 - Export a collection of GPIO lines to a virtual machine,
1878 - Provide a generic driver for a GPIO-operated device in an
1879 industrial control context, to be operated from userspace using
1880 the GPIO chardev interface.
1883 tristate "GPIO latch driver"
1885 Say yes here to enable a driver for GPIO multiplexers based on latches
1886 connected to other GPIOs.
1889 tristate "GPIO Testing Driver (DEPRECATED)"
1892 This module is DEPRECATED. Please consider using gpio-sim instead.
1894 This enables GPIO Testing driver, which provides a way to test GPIO
1895 subsystem through sysfs (or char device) and debugfs.
1896 User could use it through the script in
1897 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1901 tristate "VirtIO GPIO support"
1903 select GPIOLIB_IRQCHIP
1905 Say Y here to enable guest support for virtio-based GPIO controllers.
1907 These virtual GPIOs can be routed to real GPIOs or attached to
1908 simulators on the host (like QEMU).
1911 tristate "GPIO Simulator Module"
1915 This enables the GPIO simulator - a configfs-based GPIO testing
1920 menu "GPIO Debugging utilities"
1922 config GPIO_SLOPPY_LOGIC_ANALYZER
1923 tristate "Sloppy GPIO logic analyzer"
1924 depends on (GPIOLIB || COMPILE_TEST) && CPUSETS && DEBUG_FS && EXPERT
1926 This option enables support for a sloppy logic analyzer using polled
1927 GPIOs. Use the 'tools/gpio/gpio-sloppy-logic-analyzer' script with
1928 this driver. The script will make it easier to use and will also
1929 isolate a CPU for the polling task. Note that this is a last resort
1930 analyzer which can be affected by latencies, non-deterministic code
1931 paths, or NMIs. However, for e.g. remote development, it may be useful
1932 to get a first view and aid further debugging.
1934 If this driver is built as a module it will be called
1935 'gpio-sloppy-logic-analyzer'.
1937 config GPIO_VIRTUSER
1938 tristate "GPIO Virtual User Testing Module"
1943 Say Y here to enable the configurable, configfs-based virtual GPIO
1944 consumer testing driver.
1946 This driver is aimed as a helper in spotting any regressions in
1947 hot-unplug handling in GPIOLIB.