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.
74 prompt "Character device (/dev/gpiochipN) support" if EXPERT
77 Say Y here to add the character device /dev/gpiochipN interface
78 for GPIOs. The character device allows userspace to control GPIOs
79 using ioctl() operations.
81 Only say N if you are sure that the GPIO character device is not
87 bool "Support GPIO ABI Version 1"
91 Say Y here to support version 1 of the GPIO CDEV ABI.
93 This ABI version is deprecated.
94 Please use the latest ABI for new developments.
99 depends on HAS_IOMEM # Only for IOMEM drivers
106 # put drivers in the right section, in alphabetical order
108 # This symbol is selected by both I2C and SPI expanders
115 select GPIOLIB_IRQCHIP
118 Enables support for the idio-16 library functions. The idio-16 library
119 provides functions to facilitate communication with devices within the
120 ACCES IDIO-16 family such as the 104-IDIO-16 and the PCI-IDIO-16.
122 If built as a module its name will be gpio-idio-16.
124 menu "Memory mapped GPIO drivers"
127 config GPIO_74XX_MMIO
128 tristate "GPIO driver for 74xx-ICs with MMIO access"
132 Say yes here to support GPIO functionality for 74xx-compatible ICs
133 with MMIO access. Compatible models include:
134 1 bit: 741G125 (Input), 741G74 (Output)
135 2 bits: 742G125 (Input), 7474 (Output)
136 4 bits: 74125 (Input), 74175 (Output)
137 6 bits: 74365 (Input), 74174 (Output)
138 8 bits: 74244 (Input), 74273 (Output)
139 16 bits: 741624 (Input), 7416374 (Output)
142 tristate "Altera GPIO"
144 select GPIOLIB_IRQCHIP
145 select OF_GPIO_MM_GPIOCHIP
147 Say Y or M here to build support for the Altera PIO device.
149 If driver is built as a module it will be called gpio-altera.
152 tristate "AMD Promontory GPIO support"
156 Driver for GPIO functionality on Promontory IOHub.
157 Requires ACPI ASL code to enumerate as a platform device.
160 tristate "Aspeed GPIO support"
161 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
162 select GPIOLIB_IRQCHIP
164 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
166 config GPIO_ASPEED_SGPIO
167 bool "Aspeed SGPIO support"
168 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
170 select GPIOLIB_IRQCHIP
172 Say Y here to support Aspeed AST2500 SGPIO functionality.
175 tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
177 depends on ATH79 || COMPILE_TEST
179 select GPIOLIB_IRQCHIP
181 Select this option to enable GPIO driver for
182 Atheros AR71XX/AR724X/AR913X SoC devices.
184 config GPIO_RASPBERRYPI_EXP
185 tristate "Raspberry Pi 3 GPIO Expander"
186 default RASPBERRYPI_FIRMWARE
188 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
189 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
190 depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
192 Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
193 the firmware mailbox to communicate with VideoCore on BCM283x chips.
196 bool "Broadcom Kona GPIO"
197 depends on ARCH_BCM_MOBILE || COMPILE_TEST
199 Turn on GPIO support for Broadcom "Kona" chips.
201 config GPIO_BCM_XGS_IPROC
202 tristate "BRCM XGS iProc GPIO support"
203 depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST)
205 select GPIOLIB_IRQCHIP
206 default ARCH_BCM_IPROC
208 Say yes here to enable GPIO support for Broadcom XGS iProc SoCs.
211 tristate "BRCMSTB GPIO support"
212 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
213 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
217 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
220 tristate "Cadence GPIO support"
223 select GPIOLIB_IRQCHIP
225 Say yes here to enable support for Cadence GPIO controller.
228 tristate "CLPS711X GPIO support"
229 depends on ARCH_CLPS711X || COMPILE_TEST
232 Say yes here to support GPIO on CLPS711X SoCs.
235 tristate "TI Davinci/Keystone GPIO support"
236 default y if ARCH_DAVINCI
237 depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3)
239 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
242 tristate "Synopsys DesignWare APB GPIO driver"
244 select GPIOLIB_IRQCHIP
246 Say Y or M here to build support for the Synopsys DesignWare APB
250 tristate "Spreadtrum EIC support"
251 depends on ARCH_SPRD || COMPILE_TEST
253 select GPIOLIB_IRQCHIP
255 Say yes here to support Spreadtrum EIC device.
258 tristate "Emma Mobile GPIO"
259 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
261 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
264 tristate "Airoha GPIO support"
265 depends on ARCH_AIROHA
268 select GPIOLIB_IRQCHIP
270 Say Y or M here to support the GPIO controller block on the
271 Airoha EN7523 SoC. It supports two banks of 32 GPIOs.
275 depends on ARCH_EP93XX
277 select GPIOLIB_IRQCHIP
280 tristate "Support for GPIO pins on XR17V352/354/358"
281 depends on SERIAL_8250_EXAR
284 Selecting this option will enable handling of GPIO pins present
285 on Exar XR17V352/354/358 chips.
288 bool "GE FPGA based GPIO"
289 depends on GE_FPGA || COMPILE_TEST
292 Support for common GPIO functionality provided on some GE Single Board
295 This driver provides basic support (configure as input or output, read
296 and write pin state) for GPIO implemented in a number of GE single
299 config GPIO_FTGPIO010
300 bool "Faraday FTGPIO010 GPIO"
303 select GPIOLIB_IRQCHIP
304 default (ARCH_GEMINI || ARCH_MOXART)
306 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
307 Cortina systems Gemini platforms, Moxa ART and others.
309 config GPIO_GENERIC_PLATFORM
310 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
313 Say yes here to support basic platform_device memory-mapped GPIO controllers.
316 tristate "Aeroflex Gaisler GRGPIO support"
321 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
322 VHDL IP core library.
325 tristate "HiSilicon GPIO controller driver"
326 depends on ARM64 || COMPILE_TEST
328 select GPIOLIB_IRQCHIP
330 Say Y or M here to build support for the HiSilicon GPIO controller
332 This GPIO controller supports double-edge interrupt and multi-core
336 tristate "Nintendo Wii (Hollywood) GPIO"
339 select GPIOLIB_IRQCHIP
341 Select this to support the GPIO controller of the Nintendo Wii.
346 tristate "Intel ICH GPIO"
350 Say yes here to support the GPIO functionality of a number of Intel
351 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
352 ICH9, ICH10, Series 5/3400 (e.g. Ibex Peak), Series 6/C200 (e.g.
353 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
362 bool "Intel IXP4xx GPIO"
363 depends on ARCH_IXP4XX
366 select GPIOLIB_IRQCHIP
367 select IRQ_DOMAIN_HIERARCHY
369 Say yes here to support the GPIO functionality of a number of Intel
370 IXP4xx series of chips.
375 tristate "Xylon LogiCVC GPIO support"
376 depends on MFD_SYSCON && OF
378 Say yes here to support GPIO functionality of the Xylon LogiCVC
379 programmable logic block.
382 bool "Loongson-2/3 GPIO support"
383 depends on CPU_LOONGSON2EF || CPU_LOONGSON64
385 Driver for GPIO functionality on Loongson-2F/3A/3B processors.
387 config GPIO_LOONGSON_64BIT
388 tristate "Loongson 64 bit GPIO support"
389 depends on LOONGARCH || COMPILE_TEST
393 Say yes here to support the GPIO functionality of a number of
394 Loongson series of chips. The Loongson GPIO controller supports
395 up to 60 GPIOS in total, 4 of which are dedicated GPIO pins, and
396 the remaining 56 are reused with other functions, with edge or
397 level triggered interrupts.
400 tristate "NXP LPC18XX/43XX GPIO support"
401 default y if ARCH_LPC18XX
402 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
403 select IRQ_DOMAIN_HIERARCHY
405 Select this option to enable GPIO driver for
406 NXP LPC18XX/43XX devices.
409 tristate "NXP LPC32XX GPIO support"
410 depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST)
412 Select this option to enable GPIO driver for
416 tristate "GPIO support for Fujitsu MB86S7x Platforms"
418 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
421 tristate "MEN 16Z127 GPIO support"
425 Say yes here to support the MEN 16Z127 GPIO Controller.
427 config GPIO_MM_LANTIQ
428 bool "Lantiq Memory mapped GPIOs"
429 depends on LANTIQ && SOC_XWAY
430 select OF_GPIO_MM_GPIOCHIP
432 This enables support for memory mapped GPIOs on the External Bus Unit
433 (EBU) found on Lantiq SoCs. The GPIOs are output only as they are
434 created by attaching a 16-bit latch to the bus.
438 depends on PPC_MPC52xx
439 select OF_GPIO_MM_GPIOCHIP
442 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
443 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
444 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
449 Say Y here if you're going to use hardware that connects to the
450 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
453 bool "Mediatek MT7621 GPIO Support"
454 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
457 select GPIOLIB_IRQCHIP
459 Say yes here to support the Mediatek MT7621 SoC GPIO device.
463 depends on PLAT_ORION || ARCH_MVEBU
465 select GENERIC_IRQ_CHIP
469 tristate "i.MX GPIO support"
470 depends on ARCH_MXC || COMPILE_TEST
472 select GENERIC_IRQ_CHIP
475 bool "Freescale MXS GPIO support" if COMPILE_TEST
476 depends on ARCH_MXS || COMPILE_TEST
477 default y if ARCH_MXS
479 select GENERIC_IRQ_CHIP
482 bool "Nomadik GPIO driver"
483 depends on ARCH_U8500 || ARCH_NOMADIK || MACH_EYEQ5 || COMPILE_TEST
484 select GPIOLIB_IRQCHIP
486 Say yes here to support the Nomadik SoC GPIO block. This block is also
487 used by the Mobileye EyeQ5 SoC.
489 It handles up to 32 GPIOs per bank, that can all be interrupt sources.
490 It is deeply interconnected with the associated pinctrl driver as GPIO
491 registers handle muxing ("alternate functions") as well.
493 config GPIO_NPCM_SGPIO
494 bool "Nuvoton SGPIO support"
495 depends on ARCH_NPCM || COMPILE_TEST
496 select GPIOLIB_IRQCHIP
498 Say Y here to support Nuvoton NPCM7XX/NPCM8XX SGPIO functionality.
501 tristate "Cavium OCTEON GPIO"
502 depends on CAVIUM_OCTEON_SOC
505 Say yes here to support the on-chip GPIO lines on the OCTEON
509 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
510 default y if ARCH_OMAP
512 select GENERIC_IRQ_CHIP
513 select GPIOLIB_IRQCHIP
515 Say yes here to enable GPIO support for TI OMAP SoCs.
518 tristate "PrimeCell PL061 GPIO support"
521 select GPIOLIB_IRQCHIP
523 Say yes here to support the PrimeCell PL061 GPIO device.
526 bool "PXA GPIO support"
527 depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST
529 Say yes here to support the PXA GPIO device.
532 tristate "Renesas R-Car and RZ/G GPIO support"
533 depends on ARCH_RENESAS || COMPILE_TEST
534 select GPIOLIB_IRQCHIP
536 Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs.
539 bool "RDA Micro GPIO controller support"
540 depends on ARCH_RDA || COMPILE_TEST
543 select GPIOLIB_IRQCHIP
545 Say Y here to support RDA Micro GPIO controller.
547 config GPIO_REALTEK_OTTO
548 tristate "Realtek Otto GPIO support"
549 depends on MACH_REALTEK_RTL
550 default MACH_REALTEK_RTL
552 select GPIOLIB_IRQCHIP
554 The GPIO controller on the Otto MIPS platform supports up to two
555 banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs
556 are grouped in four 8-bit wide ports.
558 When built as a module, the module will be called realtek_otto_gpio.
563 A 32-bit single register GPIO fixed in/out implementation. This
564 can be used to represent any register as a set of GPIO signals.
567 tristate "Rockchip GPIO support"
568 depends on ARCH_ROCKCHIP || COMPILE_TEST
569 select GENERIC_IRQ_CHIP
570 select GPIOLIB_IRQCHIP
571 default ARCH_ROCKCHIP
573 Say yes here to support GPIO on Rockchip SoCs.
576 tristate "Realtek DHC GPIO support"
577 depends on ARCH_REALTEK
579 select GPIOLIB_IRQCHIP
581 This option enables support for GPIOs found on Realtek DHC(Digital
582 Home Center) SoCs family, including RTD1295, RTD1315E, RTD1319,
583 RTD1319D, RTD1395, RTD1619 and RTD1619B.
585 Say yes here to support GPIO functionality and GPIO interrupt on
588 config GPIO_SAMA5D2_PIOBU
589 tristate "SAMA5D2 PIOBU GPIO support"
590 depends on MFD_SYSCON
592 depends on ARCH_AT91 || COMPILE_TEST
595 Say yes here to use the PIOBU pins as GPIOs.
597 PIOBU pins on the SAMA5D2 can be used as GPIOs.
598 The difference from regular GPIOs is that they
599 maintain their value during backup/self-refresh.
602 tristate "SiFive GPIO support"
604 select IRQ_DOMAIN_HIERARCHY
606 select GPIOLIB_IRQCHIP
609 Say yes here to support the GPIO device on SiFive SoCs.
612 tristate "SIOX GPIO support"
614 select GPIOLIB_IRQCHIP
616 Say yes here to support SIOX I/O devices. These are units connected
617 via a SIOX bus and have a number of fixed-direction I/O lines.
619 config GPIO_SNPS_CREG
620 bool "Synopsys GPIO via CREG (Control REGisters) driver"
621 depends on ARC || COMPILE_TEST
624 This driver supports GPIOs via CREG on various Synopsys SoCs.
625 This is a single-register MMIO GPIO driver for complex cases
626 where only several fields in register belong to GPIO lines and
627 each GPIO line owns a field with different length and on/off value.
629 config GPIO_SPEAR_SPICS
630 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
631 depends on PLAT_SPEAR
632 select GENERIC_IRQ_CHIP
634 Say yes here to support ST SPEAr SPI Chip Select as GPIO device.
637 tristate "Spreadtrum GPIO support"
638 depends on ARCH_SPRD || COMPILE_TEST
640 select GPIOLIB_IRQCHIP
642 Say yes here to support Spreadtrum GPIO device.
645 bool "XWAY STP GPIOs"
646 depends on SOC_XWAY || COMPILE_TEST
649 This enables support for the Serial To Parallel (STP) unit found on
650 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
651 that can be up to 24 bits. This peripheral is aimed at driving LEDs.
652 Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and
656 tristate "GPIO based on SYSCON"
657 depends on MFD_SYSCON && OF
659 Say yes here to support GPIO functionality though SYSCON driver.
663 select GPIOLIB_IRQCHIP
665 GPIO support for Intel Tangier and compatible platforms.
670 If built as a module its name will be gpio-tangier.
675 select GENERIC_IRQ_CHIP
679 tristate "NVIDIA Tegra GPIO support"
681 depends on ARCH_TEGRA || COMPILE_TEST
683 select GPIOLIB_IRQCHIP
684 select IRQ_DOMAIN_HIERARCHY
686 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
689 tristate "NVIDIA Tegra186 GPIO support"
690 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC
691 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST
693 select GPIOLIB_IRQCHIP
694 select IRQ_DOMAIN_HIERARCHY
696 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
699 tristate "TS-4800 DIO blocks and compatibles"
701 depends on SOC_IMX51 || COMPILE_TEST
704 This driver support TS-4800 FPGA GPIO controllers.
707 tristate "Cavium ThunderX/OCTEON-TX GPIO"
708 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
710 select GPIOLIB_IRQCHIP
711 select IRQ_DOMAIN_HIERARCHY
712 select IRQ_FASTEOI_HIERARCHY_HANDLERS
714 Say yes here to support the on-chip GPIO lines on the ThunderX
715 and OCTEON-TX families of SoCs.
718 tristate "UniPhier GPIO support"
719 depends on ARCH_UNIPHIER || COMPILE_TEST
721 select IRQ_DOMAIN_HIERARCHY
723 Say yes here to support UniPhier GPIOs.
726 bool "VF610 GPIO support"
727 default y if SOC_VF610
728 depends on ARCH_MXC || COMPILE_TEST
729 select GPIOLIB_IRQCHIP
731 Say yes here to support i.MX or Vybrid vf610 GPIOs.
734 tristate "Toshiba Visconti GPIO support"
735 depends on ARCH_VISCONTI || COMPILE_TEST
737 select GPIOLIB_IRQCHIP
739 select IRQ_DOMAIN_HIERARCHY
741 Say yes here to support GPIO on Tohisba Visconti.
744 tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver"
745 depends on MFD_WCD934X && OF_GPIO
747 This driver is to support GPIO block found on the Qualcomm Technologies
748 Inc WCD9340/WCD9341 Audio Codec.
751 bool "APM X-Gene GPIO controller support"
752 depends on ARM64 && OF_GPIO
754 This driver is to support the GPIO block within the APM X-Gene SoC
755 platform's generic flash controller. The GPIO pins are muxed with
756 the generic flash controller's address and data pins. Say yes
757 here to enable the GFC GPIO functionality.
760 tristate "APM X-Gene GPIO standby controller support"
761 depends on (ARCH_XGENE || COMPILE_TEST)
763 select GPIOLIB_IRQCHIP
764 select IRQ_DOMAIN_HIERARCHY
766 This driver supports the GPIO block within the APM X-Gene
767 Standby Domain. Say yes here to enable the GPIO functionality.
770 tristate "Xilinx GPIO support"
771 select GPIOLIB_IRQCHIP
774 Say yes here to support the Xilinx FPGA GPIO device.
777 tristate "Cavium ThunderX2 GPIO support"
778 depends on ARCH_THUNDER2 || COMPILE_TEST
779 select GPIOLIB_IRQCHIP
781 This driver provides support for GPIO interface on Cavium's ThunderX2
782 CN99XX SoCs (Originally from Netlogic XLP).
787 bool "Xtensa GPIO32 support"
789 depends on HAVE_XTENSA_GPIO32
792 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
793 and EXPSTATE (output) ports.
796 bool "LSI ZEVIO SoC memory mapped GPIOs"
799 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
802 tristate "Xilinx Zynq GPIO support"
803 depends on ARCH_ZYNQ || ARCH_ZYNQMP
804 select GPIOLIB_IRQCHIP
806 Say yes here to support Xilinx Zynq GPIO controller.
808 config GPIO_ZYNQMP_MODEPIN
809 tristate "ZynqMP ps-mode pin GPIO configuration driver"
810 depends on ZYNQMP_FIRMWARE
811 default ZYNQMP_FIRMWARE
813 Say yes here to support the ZynqMP ps-mode pin GPIO configuration
816 This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE
817 is 4-bits boot mode pins. It sets and gets the status of
818 the ps-mode pin. Every pin can be configured as input/output.
820 config GPIO_LOONGSON1
821 tristate "Loongson1 GPIO support"
822 depends on MACH_LOONGSON32
825 Say Y or M here to support GPIO on Loongson1 SoCs.
828 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
830 This option enables driver for GPIO on AMD's Fusion Controller Hub,
831 as found on G-series SOCs (e.g. GX-412TC).
833 Note: This driver doesn't register itself automatically, as it
834 needs to be provided with platform-specific configuration.
835 (See e.g. CONFIG_PCENGINES_APU2.)
838 bool "MStar MSC313 GPIO support"
839 depends on ARCH_MSTARV7
841 select GPIOLIB_IRQCHIP
842 select IRQ_DOMAIN_HIERARCHY
844 Say Y here to support the main GPIO block on MStar/SigmaStar
848 tristate "IDT 79RC3243X GPIO support"
849 depends on MIKROTIK_RB532 || COMPILE_TEST
851 select GPIOLIB_IRQCHIP
853 Select this option to enable GPIO driver for
854 IDT 79RC3243X-based devices like Mikrotik RB532.
856 To compile this driver as a module, choose M here: the module will
857 be called gpio-idt3243x.
861 menu "Port-mapped I/O GPIO drivers"
862 depends on X86 && HAS_IOPORT # I/O space access
865 tristate "VIA VX855/VX875 GPIO"
870 Support access to the VX855/VX875 GPIO lines through the GPIO library.
872 This driver provides common support for accessing the device.
873 Additional drivers must be enabled in order to use the
874 functionality of the device.
880 Enables support for the i8255 interface library functions. The i8255
881 interface library provides functions to facilitate communication with
882 interfaces compatible with the venerable Intel 8255 Programmable
883 Peripheral Interface (PPI). The Intel 8255 PPI chip was first released
884 in the early 1970s but compatible interfaces are nowadays typically
885 found embedded in larger VLSI processing chips and FPGA components.
887 If built as a module its name will be gpio-i8255.
889 config GPIO_104_DIO_48E
890 tristate "ACCES 104-DIO-48E GPIO support"
895 select GPIOLIB_IRQCHIP
899 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
900 104-DIO-24E). The base port addresses for the devices may be
901 configured via the base module parameter. The interrupt line numbers
902 for the devices may be configured via the irq module parameter.
904 config GPIO_104_IDIO_16
905 tristate "ACCES 104-IDIO-16 GPIO support"
911 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
912 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
913 base port addresses for the devices may be configured via the base
914 module parameter. The interrupt line numbers for the devices may be
915 configured via the irq module parameter.
917 config GPIO_104_IDI_48
918 tristate "ACCES 104-IDI-48 GPIO support"
923 select GPIOLIB_IRQCHIP
926 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
927 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
928 the devices may be configured via the base module parameter. The
929 interrupt line numbers for the devices may be configured via the irq
933 tristate "Fintek and Nuvoton Super-I/O GPIO support"
935 This option enables support for GPIOs found on Fintek Super-I/O
936 chips F71869, F71869A, F71882FG, F71889F and F81866.
937 As well as Nuvoton Super-I/O chip NCT6126D.
939 To compile this driver as a module, choose M here: the module will
940 be called f7188x-gpio.
943 tristate "Diamond Systems GPIO-MM GPIO support"
949 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
951 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
952 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
953 support for these 48 channels of digital I/O.
955 The base port addresses for the devices may be configured via the base
956 array module parameter.
959 tristate "IT87xx GPIO support"
961 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
963 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
964 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
967 To compile this driver as a module, choose M here: the module will
971 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
972 depends on (X86 || COMPILE_TEST) && ACPI
974 select GPIOLIB_IRQCHIP
976 Say yes here to support GPIO interface on Intel Poulsbo SCH,
977 Intel Tunnel Creek processor, Intel Centerton processor or
978 Intel Quark X1000 SoC.
980 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
981 powered by the core power rail and are turned off during sleep
982 modes (S3 and higher). The remaining four GPIOs are powered by
983 the Intel SCH suspend power supply. These GPIOs remain
984 active during S3. The suspend-powered GPIOs can be used to wake the
985 system from the Suspend-to-RAM state.
987 The Intel Tunnel Creek processor has 5 GPIOs powered by the
988 core power rail and 9 from suspend power supply.
990 The Intel Centerton processor has a total of 30 GPIO pins.
991 Twenty-one are powered by the core power rail and 9 from the
992 suspend power supply.
994 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
995 power well and 6 from the suspend power well.
998 tristate "SMSC SCH311x SuperI/O GPIO"
1000 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
1001 SCH3116 "Super I/O" chipsets.
1003 To compile this driver as a module, choose M here: the module will
1004 be called gpio-sch311x.
1007 tristate "TS-5500 DIO blocks and compatibles"
1008 depends on TS5500 || COMPILE_TEST
1010 This driver supports Digital I/O exposed by pin blocks found on some
1011 Technologic Systems platforms. It includes, but is not limited to, 3
1012 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
1016 tristate "Winbond Super I/O GPIO support"
1019 This option enables support for GPIOs found on Winbond Super I/O
1021 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
1024 You will need to provide a module parameter "gpios", or a
1025 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
1026 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
1028 To compile this driver as a module, choose M here: the module will
1029 be called gpio-winbond.
1032 tristate "WinSystems WS16C48 GPIO support"
1036 select GPIOLIB_IRQCHIP
1039 Enables GPIO support for the WinSystems WS16C48. The base port
1040 addresses for the devices may be configured via the base module
1041 parameter. The interrupt line numbers for the devices may be
1042 configured via the irq module parameter.
1046 menu "I2C GPIO expanders"
1050 tristate "Avionic Design N-bit GPIO expander"
1052 select GPIOLIB_IRQCHIP
1054 This option enables support for N GPIOs found on Avionic Design
1055 I2C GPIO expanders. The register space will be extended by powers
1056 of two, so the controller will need to accommodate for that. For
1057 example: if a controller provides 48 pins, 6 registers will be
1058 enough to represent all pins, but the driver will assume a
1059 register layout for 64 pins (8 registers).
1062 tristate "FXL6408 I2C GPIO expander"
1066 GPIO driver for Fairchild Semiconductor FXL6408 GPIO expander.
1068 To compile this driver as a module, choose M here: the module will
1069 be called gpio-fxl6408.
1072 tristate "DS4520 I2C GPIO expander"
1076 GPIO driver for ADI DS4520 I2C-based GPIO expander.
1077 Say yes here to enable the GPIO driver for the ADI DS4520 chip.
1079 To compile this driver as a module, choose M here: the module will
1080 be called gpio-ds4520.
1083 tristate "Gateworks PLD GPIO Expander"
1086 Say yes here to provide access to the Gateworks I2C PLD GPIO
1087 Expander. This is used at least on the Cambria GW2358-4.
1090 tristate "Maxim MAX7300 GPIO expander"
1093 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
1096 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
1098 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
1099 Port Expanders. Each IO port on these chips has a fixed role of
1100 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
1101 Input and Output (designed by 'P'). The combinations are listed
1104 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
1105 max7322 (4I4O), max7323 (4P4O)
1107 16 bits: max7324 (8I8O), max7325 (8P8O),
1108 max7326 (4I12O), max7327 (4P12O)
1110 Board setup code must specify the model to use, and the start
1111 number for these GPIOs.
1113 config GPIO_MAX732X_IRQ
1114 bool "Interrupt controller support for MAX732x"
1115 depends on GPIO_MAX732X=y
1116 select GPIOLIB_IRQCHIP
1118 Say yes here to enable the max732x to be used as an interrupt
1119 controller. It requires the driver to be built in the kernel.
1122 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
1125 Say yes here to provide access to several register-oriented
1126 SMBus I/O expanders, made mostly by NXP or TI. Compatible
1129 4 bits: pca9536, pca9537
1131 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
1132 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
1134 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
1139 40 bits: pca9505, pca9698
1141 config GPIO_PCA953X_IRQ
1142 bool "Interrupt controller support for PCA953x"
1143 depends on GPIO_PCA953X
1144 select GPIOLIB_IRQCHIP
1146 Say yes here to enable the pca953x to be used as an interrupt
1150 tristate "PCA9570 4-Bit I2C GPO expander"
1152 Say yes here to enable the GPO driver for the NXP PCA9570 chip.
1154 To compile this driver as a module, choose M here: the module will
1155 be called gpio-pca9570.
1158 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
1159 select GPIOLIB_IRQCHIP
1162 Say yes here to provide access to most "quasi-bidirectional" I2C
1163 GPIO expanders used for additional digital outputs or inputs.
1164 Most of these parts are from NXP, though TI is a second source for
1165 some of them. Compatible models include:
1167 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
1168 pca9670, pca9672, pca9674, pca9674a,
1171 16 bits: pcf8575, pcf8575c, pca8575,
1172 pca9671, pca9673, pca9675
1174 Your board setup code will need to declare the expanders in
1175 use, and assign numbers to the GPIOs they expose. Those GPIOs
1176 can then be used from drivers and other kernel code, just like
1177 other GPIOs, but only accessible from task contexts.
1179 This driver provides an in-kernel interface to those GPIOs using
1180 platform-neutral GPIO calls.
1182 config GPIO_TPIC2810
1183 tristate "TPIC2810 8-Bit I2C GPO expander"
1185 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
1187 To compile this driver as a module, choose M here: the module will
1188 be called gpio-tpic2810.
1191 tristate "Technologic Systems FPGA I2C GPIO"
1192 depends on SOC_IMX6 || COMPILE_TEST
1195 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
1196 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
1200 menu "MFD GPIO expanders"
1203 tristate "GPIO Support for ADP5520 PMIC"
1204 depends on PMIC_ADP5520
1206 This option enables support for on-chip GPIO found
1207 on Analog Devices ADP5520 PMICs.
1209 config GPIO_ALTERA_A10SR
1210 tristate "Altera Arria10 System Resource GPIO"
1211 depends on MFD_ALTERA_A10SR
1213 Driver for Arria10 Development Kit GPIO expansion which
1214 includes reads of pushbuttons and DIP switches as well
1218 tristate "Wolfson Microelectronics Arizona class devices"
1219 depends on MFD_ARIZONA
1221 Support for GPIOs on Wolfson Arizona class devices.
1224 tristate "ROHM BD71815 PMIC GPIO support"
1225 depends on MFD_ROHM_BD71828
1227 Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs
1228 available on the ROHM PMIC.
1230 This driver can also be built as a module. If so, the module
1231 will be called gpio-bd71815.
1234 tristate "ROHM BD71828 GPIO support"
1235 depends on MFD_ROHM_BD71828
1237 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs
1238 available on the ROHM PMIC in total. The GPIOs are limited to
1239 outputs only and pins must be configured to GPIO outputs by
1240 OTP. Enable this only if you want to use these pins as outputs.
1242 This driver can also be built as a module. If so, the module
1243 will be called gpio-bd71828.
1245 config GPIO_BD9571MWV
1246 tristate "ROHM BD9571 GPIO support"
1247 depends on MFD_BD9571MWV
1249 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
1250 available on the ROHM PMIC in total, both of which can also
1251 generate interrupts.
1253 This driver can also be built as a module. If so, the module
1254 will be called gpio-bd9571mwv.
1257 tristate "ChromeOS EC GPIO support"
1260 GPIO driver for the ChromeOS Embedded Controller (EC). GPIOs
1261 cannot be set unless the system is unlocked.
1263 This driver can also be built as a module. If so, the module
1264 will be called gpio-cros-ec.
1266 config GPIO_CRYSTAL_COVE
1267 tristate "GPIO support for Crystal Cove PMIC"
1268 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1269 select GPIOLIB_IRQCHIP
1271 Support for GPIO pins on Crystal Cove PMIC.
1273 Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC
1276 This driver can also be built as a module. If so, the module will be
1277 called gpio-crystalcove.
1280 tristate "AMD CS5535/CS5536 GPIO support"
1281 depends on X86 || MIPS || COMPILE_TEST
1282 depends on MFD_CS5535
1284 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1285 can be used for quite a number of things. The CS5535/6 is found on
1286 AMD Geode and Lemote Yeeloong devices.
1291 tristate "Dialog DA9052 GPIO"
1292 depends on PMIC_DA9052
1294 Say yes here to enable the GPIO driver for the DA9052 chip.
1297 tristate "Dialog Semiconductor DA9055 GPIO"
1298 depends on MFD_DA9055
1300 Say yes here to enable the GPIO driver for the DA9055 chip.
1302 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1303 be controlled by this driver.
1305 If driver is built as a module it will be called gpio-da9055.
1308 tristate "Diolan DLN2 GPIO support"
1310 select GPIOLIB_IRQCHIP
1313 Select this option to enable GPIO driver for the Diolan DLN2
1316 This driver can also be built as a module. If so, the module
1317 will be called gpio-dln2.
1320 bool "HTC EGPIO support"
1323 This driver supports the CPLD egpio chip present on
1324 several HTC phones. It provides basic support for input
1325 pins, output pins, and IRQs.
1327 config GPIO_ELKHARTLAKE
1328 tristate "Intel Elkhart Lake PSE GPIO support"
1329 depends on X86 || COMPILE_TEST
1332 Select this option to enable GPIO support for Intel Elkhart Lake
1335 To compile this driver as a module, choose M here: the module will
1336 be called gpio-elkhartlake.
1338 config GPIO_JANZ_TTL
1339 tristate "Janz VMOD-TTL Digital IO Module"
1340 depends on MFD_JANZ_CMODIO
1342 This enables support for the Janz VMOD-TTL Digital IO module.
1343 This driver provides support for driving the pins in output
1344 mode only. Input mode is not supported.
1347 tristate "Kontron ETX / COMexpress GPIO"
1348 depends on MFD_KEMPLD
1350 This enables support for the PLD GPIO interface on some Kontron ETX
1351 and COMexpress (ETXexpress) modules.
1353 This driver can also be built as a module. If so, the module will be
1357 tristate "INTEL La Jolla Cove Adapter GPIO support"
1359 select GPIOLIB_IRQCHIP
1362 Select this option to enable GPIO driver for the INTEL
1363 La Jolla Cove Adapter (LJCA) board.
1365 This driver can also be built as a module. If so, the module
1366 will be called gpio-ljca.
1369 tristate "TI/National Semiconductor LP3943 GPIO expander"
1370 depends on MFD_LP3943
1372 GPIO driver for LP3943 MFD.
1373 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1374 Open drain outputs are required for this usage.
1377 tristate "TI LP873X GPO"
1378 depends on MFD_TI_LP873X
1380 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1383 This driver can also be built as a module. If so, the module will be
1387 tristate "TI LP87565 GPIO"
1388 depends on MFD_TI_LP87565
1390 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1393 This driver can also be built as a module. If so, the module will be
1394 called gpio-lp87565.
1397 tristate "Cirrus Logic Madera class codecs"
1398 depends on PINCTRL_MADERA
1400 Support for GPIOs on Cirrus Logic Madera class codecs.
1402 config GPIO_MAX77620
1403 tristate "GPIO support for PMIC MAX77620 and MAX20024"
1404 depends on MFD_MAX77620
1405 select GPIOLIB_IRQCHIP
1407 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1408 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1409 driver also provides interrupt support for each of the GPIOs.
1410 Say yes here to enable the max77620 to be used as GPIO controller.
1412 config GPIO_MAX77650
1413 tristate "Maxim MAX77650/77651 GPIO support"
1414 depends on MFD_MAX77650
1416 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1417 These chips have a single pin that can be configured as GPIO.
1420 bool "TI PALMAS series PMICs GPIO"
1421 depends on MFD_PALMAS
1423 Select this option to enable GPIO driver for the TI PALMAS
1426 config GPIO_PMIC_EIC_SPRD
1427 tristate "Spreadtrum PMIC EIC support"
1428 depends on MFD_SC27XX_PMIC || COMPILE_TEST
1430 select GPIOLIB_IRQCHIP
1432 Say yes here to support Spreadtrum PMIC EIC device.
1435 bool "RICOH RC5T583 GPIO"
1436 depends on MFD_RC5T583
1438 Select this option to enable GPIO driver for the Ricoh RC5T583
1440 This driver provides the support for driving/reading the GPIO pins
1441 of RC5T583 device through standard GPIO library.
1443 config GPIO_SL28CPLD
1444 tristate "Kontron sl28cpld GPIO support"
1445 depends on MFD_SL28CPLD || COMPILE_TEST
1447 select GPIOLIB_IRQCHIP
1450 This enables support for the GPIOs found on the Kontron sl28 CPLD.
1452 This driver can also be built as a module. If so, the module will be
1453 called gpio-sl28cpld.
1457 depends on MFD_STMPE
1459 select GPIOLIB_IRQCHIP
1461 This enables support for the GPIOs found on the STMPE I/O
1465 bool "TC3589X GPIOs"
1466 depends on MFD_TC3589X
1468 select GPIOLIB_IRQCHIP
1470 This enables support for the GPIOs found on the TC3589X
1473 config GPIO_TIMBERDALE
1474 bool "Support for timberdale GPIO IP"
1475 depends on MFD_TIMBERDALE
1477 Add support for the GPIO IP in the timberdale FPGA.
1479 config GPIO_TN48M_CPLD
1480 tristate "Delta Networks TN48M switch CPLD GPIO driver"
1481 depends on MFD_TN48M_CPLD
1484 This enables support for the GPIOs found on the Delta
1485 Networks TN48M switch Lattice CPLD. It provides 12 pins in total,
1486 they are input-only or output-only type.
1488 This driver can also be built as a module. If so, the
1489 module will be called gpio-tn48m.
1491 config GPIO_TPS65086
1492 tristate "TI TPS65086 GPO"
1493 depends on MFD_TPS65086
1495 This driver supports the GPO on TI TPS65086x PMICs.
1497 config GPIO_TPS65218
1498 tristate "TPS65218 GPIO"
1499 depends on MFD_TPS65218
1501 Select this option to enable GPIO driver for the TPS65218
1504 config GPIO_TPS65219
1505 tristate "TPS65219 GPIO"
1506 depends on MFD_TPS65219
1507 default MFD_TPS65219
1509 Select this option to enable GPIO driver for the TPS65219 chip
1511 GPIO0 is statically configured as either input or output prior to
1512 Linux boot. It is used for MULTI_DEVICE_ENABLE function. This setting
1513 is statically configured by NVM. GPIO0 can't be used as a generic
1514 GPIO. It's either a GPO when MULTI_DEVICE_EN=0 or a GPI when
1517 This driver can also be built as a module. If so, the module will be
1518 called gpio_tps65219.
1520 config GPIO_TPS6586X
1521 bool "TPS6586X GPIO"
1522 depends on MFD_TPS6586X
1524 Select this option to enable GPIO driver for the TPS6586X
1527 config GPIO_TPS65910
1528 bool "TPS65910 GPIO"
1529 depends on MFD_TPS65910
1531 Select this option to enable GPIO driver for the TPS65910
1534 config GPIO_TPS65912
1535 tristate "TI TPS65912 GPIO"
1536 depends on MFD_TPS65912
1538 This driver supports TPS65912 GPIO chip.
1540 config GPIO_TPS68470
1541 tristate "TPS68470 GPIO"
1542 depends on INTEL_SKL_INT3472
1544 Select this option to enable GPIO driver for the TPS68470
1546 There are 7 GPIOs and few sensor-related GPIOs supported
1547 by the TPS68470. While the 7 GPIOs can be configured as
1548 input or output as appropriate, the sensor related GPIOs
1549 are "output only" GPIOs.
1552 tristate "TQ-Systems QTMX86 GPIO"
1553 depends on MFD_TQMX86 || COMPILE_TEST
1554 depends on HAS_IOPORT_MAP
1555 select GPIOLIB_IRQCHIP
1557 This driver supports GPIO on the TQMX86 IO controller.
1560 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1561 depends on TWL4030_CORE
1563 Say yes here to access the GPIO signals of various multi-function
1564 power management chips from Texas Instruments.
1567 tristate "TWL6040 GPO"
1568 depends on TWL6040_CORE
1570 Say yes here to access the GPO signals of twl6040
1571 audio chip from Texas Instruments.
1573 config GPIO_WHISKEY_COVE
1574 tristate "GPIO support for Whiskey Cove PMIC"
1575 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1576 select GPIOLIB_IRQCHIP
1578 Support for GPIO pins on Whiskey Cove PMIC.
1580 Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC
1583 This driver can also be built as a module. If so, the module will be
1587 tristate "WM831x GPIOs"
1588 depends on MFD_WM831X
1590 Say yes here to access the GPIO signals of WM831x power management
1591 chips from Wolfson Microelectronics.
1594 tristate "WM8350 GPIOs"
1595 depends on MFD_WM8350
1597 Say yes here to access the GPIO signals of WM8350 power management
1598 chips from Wolfson Microelectronics.
1601 tristate "WM8994 GPIOs"
1602 depends on MFD_WM8994
1604 Say yes here to access the GPIO signals of WM8994 audio hub
1605 CODECs from Wolfson Microelectronics.
1609 menu "PCI GPIO expanders"
1613 tristate "AMD 8111 GPIO driver"
1614 depends on X86 || COMPILE_TEST
1615 depends on HAS_IOPORT_MAP
1617 The AMD 8111 southbridge contains 32 GPIO pins which can be used.
1619 Note that usually system firmware/ACPI handles GPIO pins on their
1620 own and users might easily break their systems with uncareful usage
1626 tristate "BT8XX GPIO abuser"
1627 depends on VIDEO_BT848=n
1629 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1630 as a cheap PCI GPIO card.
1632 This chip can be found on Miro, Hauppauge and STB TV-cards.
1634 The card needs to be physically altered for using it as a
1635 GPIO card. For more information on how to build a GPIO card
1636 from a BT8xx TV card, see the documentation file at
1637 Documentation/driver-api/gpio/bt8xxgpio.rst
1641 config GPIO_MERRIFIELD
1642 tristate "Intel Merrifield GPIO support"
1643 depends on X86_INTEL_MID
1646 Say Y here to support Intel Merrifield GPIO.
1649 tristate "Mellanox BlueField SoC GPIO"
1650 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1653 Say Y here if you want GPIO support on Mellanox BlueField SoC.
1656 tristate "Mellanox BlueField 2 SoC GPIO"
1657 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1659 select GPIOLIB_IRQCHIP
1661 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC.
1664 tristate "Mellanox BlueField 3 SoC GPIO"
1665 depends on (MELLANOX_PLATFORM && ARM64) || COMPILE_TEST
1667 select GPIOLIB_IRQCHIP
1669 Say Y if you want GPIO support on Mellanox BlueField 3 SoC.
1670 This GPIO controller supports interrupt handling and enables the
1671 manipulation of certain GPIO pins.
1672 This controller should be used in parallel with pinctrl-mlxbf3 to
1673 control the desired GPIOs.
1674 This driver can also be built as a module called mlxbf3-gpio.
1677 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1678 depends on X86 || COMPILE_TEST
1679 select GENERIC_IRQ_CHIP
1681 ML7213 is companion chip for Intel Atom E6xx series.
1682 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output
1683 Hub) which is for IVI (In-Vehicle Infotainment) use.
1684 This driver can access the IOH's GPIO device.
1687 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO"
1688 depends on X86_32 || MIPS || COMPILE_TEST
1689 select GENERIC_IRQ_CHIP
1691 This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff,
1692 which is an IOH (Input/Output Hub) for x86 embedded processor.
1693 This driver can access PCH GPIO device.
1695 This driver also can be used for LAPIS Semiconductor IOH (Input/
1696 Output Hub), ML7223 and ML7831.
1697 ML7223 IOH is for MP (Media Phone) use.
1698 ML7831 IOH is for general purpose use.
1699 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1700 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1702 config GPIO_PCI_IDIO_16
1703 tristate "ACCES PCI-IDIO-16 GPIO support"
1707 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1708 generated when any of the inputs change state (low to high or high to
1709 low). Input filter control is not supported by this driver, and the
1710 input filters are deactivated by this driver.
1712 config GPIO_PCIE_IDIO_24
1713 tristate "ACCES PCIe-IDIO-24 GPIO support"
1716 select GPIOLIB_IRQCHIP
1719 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1720 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1721 when any of the inputs change state (low to high or high to low).
1722 Input filter control is not supported by this driver, and the input
1723 filters are deactivated by this driver.
1726 tristate "RDC R-321x GPIO support"
1730 Support for the RDC R321x SoC GPIOs over southbridge
1731 PCI configuration space.
1733 config GPIO_SODAVILLE
1734 bool "Intel Sodaville GPIO support"
1735 depends on X86 && OF
1737 select GENERIC_IRQ_CHIP
1739 Say Y here to support Intel Sodaville GPIO.
1743 menu "SPI GPIO expanders"
1744 depends on SPI_MASTER
1747 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1750 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1751 shift registers. This driver can be used to provide access
1752 to more GPIO outputs.
1754 config GPIO_MAX3191X
1755 tristate "Maxim MAX3191x industrial serializer"
1758 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1759 MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1760 chip to make 8 digital 24V inputs available via SPI. Supports
1761 CRC checksums to guard against electromagnetic interference,
1762 as well as undervoltage and overtemperature detection.
1765 tristate "Maxim MAX7301 GPIO expander"
1768 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1771 tristate "Freescale MC33880 high-side/low-side switch"
1773 SPI driver for Freescale MC33880 high-side/low-side switch.
1774 This provides GPIO interface supporting inputs and outputs.
1777 tristate "Generic parallel-in/serial-out shift register"
1779 GPIO driver for SPI compatible parallel-in/serial-out shift
1780 registers. These are input only devices.
1783 tristate "EXAR XRA1403 16-bit GPIO expander"
1786 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1789 tristate "Turris Mox Moxtet bus GPIO expander"
1792 Say yes here if you are building for the Turris Mox router.
1793 This is the driver needed for configuring the GPIOs via the Moxtet
1794 bus. For example the Mox module with SFP cage needs this driver
1795 so that phylink can use corresponding GPIOs.
1799 menu "USB GPIO expanders"
1802 config GPIO_VIPERBOARD
1803 tristate "Viperboard GPIO a & b support"
1804 depends on MFD_VIPERBOARD
1806 Say yes here to access the GPIO signals of Nano River
1807 Technologies Viperboard. There are two GPIO chips on the
1808 board: gpioa and gpiob.
1809 See viperboard API specification and Nano
1810 River Tech's viperboard.h for detailed meaning
1811 of the module parameters.
1815 menu "Virtual GPIO drivers"
1817 config GPIO_AGGREGATOR
1818 tristate "GPIO Aggregator"
1820 Say yes here to enable the GPIO Aggregator, which provides a way to
1821 aggregate existing GPIO lines into a new virtual GPIO chip.
1822 This can serve the following purposes:
1823 - Assign permissions for a collection of GPIO lines to a user,
1824 - Export a collection of GPIO lines to a virtual machine,
1825 - Provide a generic driver for a GPIO-operated device in an
1826 industrial control context, to be operated from userspace using
1827 the GPIO chardev interface.
1830 tristate "GPIO latch driver"
1832 Say yes here to enable a driver for GPIO multiplexers based on latches
1833 connected to other GPIOs.
1836 tristate "GPIO Testing Driver (DEPRECATED)"
1839 This module is DEPRECATED. Please consider using gpio-sim instead.
1841 This enables GPIO Testing driver, which provides a way to test GPIO
1842 subsystem through sysfs (or char device) and debugfs.
1843 User could use it through the script in
1844 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1848 tristate "VirtIO GPIO support"
1850 select GPIOLIB_IRQCHIP
1852 Say Y here to enable guest support for virtio-based GPIO controllers.
1854 These virtual GPIOs can be routed to real GPIOs or attached to
1855 simulators on the host (like QEMU).
1858 tristate "GPIO Simulator Module"
1862 This enables the GPIO simulator - a configfs-based GPIO testing