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 tristate "Cavium OCTEON GPIO"
483 depends on CAVIUM_OCTEON_SOC
486 Say yes here to support the on-chip GPIO lines on the OCTEON
490 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
491 default y if ARCH_OMAP
493 select GENERIC_IRQ_CHIP
494 select GPIOLIB_IRQCHIP
496 Say yes here to enable GPIO support for TI OMAP SoCs.
499 tristate "PrimeCell PL061 GPIO support"
502 select GPIOLIB_IRQCHIP
504 Say yes here to support the PrimeCell PL061 GPIO device.
507 bool "PXA GPIO support"
508 depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST
510 Say yes here to support the PXA GPIO device.
513 tristate "Renesas R-Car and RZ/G GPIO support"
514 depends on ARCH_RENESAS || COMPILE_TEST
515 select GPIOLIB_IRQCHIP
517 Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs.
520 bool "RDA Micro GPIO controller support"
521 depends on ARCH_RDA || COMPILE_TEST
524 select GPIOLIB_IRQCHIP
526 Say Y here to support RDA Micro GPIO controller.
528 config GPIO_REALTEK_OTTO
529 tristate "Realtek Otto GPIO support"
530 depends on MACH_REALTEK_RTL
531 default MACH_REALTEK_RTL
533 select GPIOLIB_IRQCHIP
535 The GPIO controller on the Otto MIPS platform supports up to two
536 banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs
537 are grouped in four 8-bit wide ports.
539 When built as a module, the module will be called realtek_otto_gpio.
544 A 32-bit single register GPIO fixed in/out implementation. This
545 can be used to represent any register as a set of GPIO signals.
548 tristate "Rockchip GPIO support"
549 depends on ARCH_ROCKCHIP || COMPILE_TEST
550 select GENERIC_IRQ_CHIP
551 select GPIOLIB_IRQCHIP
552 default ARCH_ROCKCHIP
554 Say yes here to support GPIO on Rockchip SoCs.
556 config GPIO_SAMA5D2_PIOBU
557 tristate "SAMA5D2 PIOBU GPIO support"
558 depends on MFD_SYSCON
560 depends on ARCH_AT91 || COMPILE_TEST
563 Say yes here to use the PIOBU pins as GPIOs.
565 PIOBU pins on the SAMA5D2 can be used as GPIOs.
566 The difference from regular GPIOs is that they
567 maintain their value during backup/self-refresh.
570 tristate "SiFive GPIO support"
572 select IRQ_DOMAIN_HIERARCHY
574 select GPIOLIB_IRQCHIP
577 Say yes here to support the GPIO device on SiFive SoCs.
580 tristate "SIOX GPIO support"
582 select GPIOLIB_IRQCHIP
584 Say yes here to support SIOX I/O devices. These are units connected
585 via a SIOX bus and have a number of fixed-direction I/O lines.
587 config GPIO_SNPS_CREG
588 bool "Synopsys GPIO via CREG (Control REGisters) driver"
589 depends on ARC || COMPILE_TEST
592 This driver supports GPIOs via CREG on various Synopsys SoCs.
593 This is a single-register MMIO GPIO driver for complex cases
594 where only several fields in register belong to GPIO lines and
595 each GPIO line owns a field with different length and on/off value.
597 config GPIO_SPEAR_SPICS
598 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
599 depends on PLAT_SPEAR
600 select GENERIC_IRQ_CHIP
602 Say yes here to support ST SPEAr SPI Chip Select as GPIO device.
605 tristate "Spreadtrum GPIO support"
606 depends on ARCH_SPRD || COMPILE_TEST
608 select GPIOLIB_IRQCHIP
610 Say yes here to support Spreadtrum GPIO device.
613 bool "XWAY STP GPIOs"
614 depends on SOC_XWAY || COMPILE_TEST
617 This enables support for the Serial To Parallel (STP) unit found on
618 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
619 that can be up to 24 bits. This peripheral is aimed at driving LEDs.
620 Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and
624 tristate "GPIO based on SYSCON"
625 depends on MFD_SYSCON && OF
627 Say yes here to support GPIO functionality though SYSCON driver.
631 select GPIOLIB_IRQCHIP
633 GPIO support for Intel Tangier and compatible platforms.
638 If built as a module its name will be gpio-tangier.
643 select GENERIC_IRQ_CHIP
647 tristate "NVIDIA Tegra GPIO support"
649 depends on ARCH_TEGRA || COMPILE_TEST
651 select GPIOLIB_IRQCHIP
652 select IRQ_DOMAIN_HIERARCHY
654 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
657 tristate "NVIDIA Tegra186 GPIO support"
658 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC
659 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST
661 select GPIOLIB_IRQCHIP
662 select IRQ_DOMAIN_HIERARCHY
664 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
667 tristate "TS-4800 DIO blocks and compatibles"
669 depends on SOC_IMX51 || COMPILE_TEST
672 This driver support TS-4800 FPGA GPIO controllers.
675 tristate "Cavium ThunderX/OCTEON-TX GPIO"
676 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
678 select GPIOLIB_IRQCHIP
679 select IRQ_DOMAIN_HIERARCHY
680 select IRQ_FASTEOI_HIERARCHY_HANDLERS
682 Say yes here to support the on-chip GPIO lines on the ThunderX
683 and OCTEON-TX families of SoCs.
686 tristate "UniPhier GPIO support"
687 depends on ARCH_UNIPHIER || COMPILE_TEST
689 select IRQ_DOMAIN_HIERARCHY
691 Say yes here to support UniPhier GPIOs.
696 select GPIOLIB_IRQCHIP
698 Say yes here to support i.MX or Vybrid vf610 GPIOs.
701 tristate "Toshiba Visconti GPIO support"
702 depends on ARCH_VISCONTI || COMPILE_TEST
704 select GPIOLIB_IRQCHIP
706 select IRQ_DOMAIN_HIERARCHY
708 Say yes here to support GPIO on Tohisba Visconti.
711 tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver"
712 depends on MFD_WCD934X && OF_GPIO
714 This driver is to support GPIO block found on the Qualcomm Technologies
715 Inc WCD9340/WCD9341 Audio Codec.
718 bool "APM X-Gene GPIO controller support"
719 depends on ARM64 && OF_GPIO
721 This driver is to support the GPIO block within the APM X-Gene SoC
722 platform's generic flash controller. The GPIO pins are muxed with
723 the generic flash controller's address and data pins. Say yes
724 here to enable the GFC GPIO functionality.
727 tristate "APM X-Gene GPIO standby controller support"
728 depends on (ARCH_XGENE || COMPILE_TEST)
730 select GPIOLIB_IRQCHIP
731 select IRQ_DOMAIN_HIERARCHY
733 This driver supports the GPIO block within the APM X-Gene
734 Standby Domain. Say yes here to enable the GPIO functionality.
737 tristate "Xilinx GPIO support"
738 select GPIOLIB_IRQCHIP
741 Say yes here to support the Xilinx FPGA GPIO device.
744 tristate "Cavium ThunderX2 GPIO support"
745 depends on ARCH_THUNDER2 || COMPILE_TEST
746 select GPIOLIB_IRQCHIP
748 This driver provides support for GPIO interface on Cavium's ThunderX2
749 CN99XX SoCs (Originally from Netlogic XLP).
754 bool "Xtensa GPIO32 support"
756 depends on HAVE_XTENSA_GPIO32
759 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
760 and EXPSTATE (output) ports.
763 bool "LSI ZEVIO SoC memory mapped GPIOs"
766 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
769 tristate "Xilinx Zynq GPIO support"
770 depends on ARCH_ZYNQ || ARCH_ZYNQMP
771 select GPIOLIB_IRQCHIP
773 Say yes here to support Xilinx Zynq GPIO controller.
775 config GPIO_ZYNQMP_MODEPIN
776 tristate "ZynqMP ps-mode pin GPIO configuration driver"
777 depends on ZYNQMP_FIRMWARE
778 default ZYNQMP_FIRMWARE
780 Say yes here to support the ZynqMP ps-mode pin GPIO configuration
783 This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE
784 is 4-bits boot mode pins. It sets and gets the status of
785 the ps-mode pin. Every pin can be configured as input/output.
787 config GPIO_LOONGSON1
788 tristate "Loongson1 GPIO support"
789 depends on MACH_LOONGSON32
792 Say Y or M here to support GPIO on Loongson1 SoCs.
795 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
797 This option enables driver for GPIO on AMD's Fusion Controller Hub,
798 as found on G-series SOCs (e.g. GX-412TC).
800 Note: This driver doesn't register itself automatically, as it
801 needs to be provided with platform-specific configuration.
802 (See e.g. CONFIG_PCENGINES_APU2.)
805 bool "MStar MSC313 GPIO support"
806 depends on ARCH_MSTARV7
808 select GPIOLIB_IRQCHIP
809 select IRQ_DOMAIN_HIERARCHY
811 Say Y here to support the main GPIO block on MStar/SigmaStar
815 tristate "IDT 79RC3243X GPIO support"
816 depends on MIKROTIK_RB532 || COMPILE_TEST
818 select GPIOLIB_IRQCHIP
820 Select this option to enable GPIO driver for
821 IDT 79RC3243X-based devices like Mikrotik RB532.
823 To compile this driver as a module, choose M here: the module will
824 be called gpio-idt3243x.
828 menu "Port-mapped I/O GPIO drivers"
829 depends on X86 && HAS_IOPORT # I/O space access
832 tristate "VIA VX855/VX875 GPIO"
837 Support access to the VX855/VX875 GPIO lines through the GPIO library.
839 This driver provides common support for accessing the device.
840 Additional drivers must be enabled in order to use the
841 functionality of the device.
847 Enables support for the i8255 interface library functions. The i8255
848 interface library provides functions to facilitate communication with
849 interfaces compatible with the venerable Intel 8255 Programmable
850 Peripheral Interface (PPI). The Intel 8255 PPI chip was first released
851 in the early 1970s but compatible interfaces are nowadays typically
852 found embedded in larger VLSI processing chips and FPGA components.
854 If built as a module its name will be gpio-i8255.
856 config GPIO_104_DIO_48E
857 tristate "ACCES 104-DIO-48E GPIO support"
862 select GPIOLIB_IRQCHIP
866 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
867 104-DIO-24E). The base port addresses for the devices may be
868 configured via the base module parameter. The interrupt line numbers
869 for the devices may be configured via the irq module parameter.
871 config GPIO_104_IDIO_16
872 tristate "ACCES 104-IDIO-16 GPIO support"
878 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
879 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
880 base port addresses for the devices may be configured via the base
881 module parameter. The interrupt line numbers for the devices may be
882 configured via the irq module parameter.
884 config GPIO_104_IDI_48
885 tristate "ACCES 104-IDI-48 GPIO support"
890 select GPIOLIB_IRQCHIP
893 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
894 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
895 the devices may be configured via the base module parameter. The
896 interrupt line numbers for the devices may be configured via the irq
900 tristate "Fintek and Nuvoton Super-I/O GPIO support"
902 This option enables support for GPIOs found on Fintek Super-I/O
903 chips F71869, F71869A, F71882FG, F71889F and F81866.
904 As well as Nuvoton Super-I/O chip NCT6126D.
906 To compile this driver as a module, choose M here: the module will
907 be called f7188x-gpio.
910 tristate "Diamond Systems GPIO-MM GPIO support"
916 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
918 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
919 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
920 support for these 48 channels of digital I/O.
922 The base port addresses for the devices may be configured via the base
923 array module parameter.
926 tristate "IT87xx GPIO support"
928 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
930 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
931 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
934 To compile this driver as a module, choose M here: the module will
938 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
939 depends on (X86 || COMPILE_TEST) && ACPI
941 select GPIOLIB_IRQCHIP
943 Say yes here to support GPIO interface on Intel Poulsbo SCH,
944 Intel Tunnel Creek processor, Intel Centerton processor or
945 Intel Quark X1000 SoC.
947 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
948 powered by the core power rail and are turned off during sleep
949 modes (S3 and higher). The remaining four GPIOs are powered by
950 the Intel SCH suspend power supply. These GPIOs remain
951 active during S3. The suspend-powered GPIOs can be used to wake the
952 system from the Suspend-to-RAM state.
954 The Intel Tunnel Creek processor has 5 GPIOs powered by the
955 core power rail and 9 from suspend power supply.
957 The Intel Centerton processor has a total of 30 GPIO pins.
958 Twenty-one are powered by the core power rail and 9 from the
959 suspend power supply.
961 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
962 power well and 6 from the suspend power well.
965 tristate "SMSC SCH311x SuperI/O GPIO"
967 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
968 SCH3116 "Super I/O" chipsets.
970 To compile this driver as a module, choose M here: the module will
971 be called gpio-sch311x.
974 tristate "TS-5500 DIO blocks and compatibles"
975 depends on TS5500 || COMPILE_TEST
977 This driver supports Digital I/O exposed by pin blocks found on some
978 Technologic Systems platforms. It includes, but is not limited to, 3
979 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
983 tristate "Winbond Super I/O GPIO support"
986 This option enables support for GPIOs found on Winbond Super I/O
988 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
991 You will need to provide a module parameter "gpios", or a
992 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
993 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
995 To compile this driver as a module, choose M here: the module will
996 be called gpio-winbond.
999 tristate "WinSystems WS16C48 GPIO support"
1003 select GPIOLIB_IRQCHIP
1006 Enables GPIO support for the WinSystems WS16C48. The base port
1007 addresses for the devices may be configured via the base module
1008 parameter. The interrupt line numbers for the devices may be
1009 configured via the irq module parameter.
1013 menu "I2C GPIO expanders"
1017 tristate "Avionic Design N-bit GPIO expander"
1019 select GPIOLIB_IRQCHIP
1021 This option enables support for N GPIOs found on Avionic Design
1022 I2C GPIO expanders. The register space will be extended by powers
1023 of two, so the controller will need to accommodate for that. For
1024 example: if a controller provides 48 pins, 6 registers will be
1025 enough to represent all pins, but the driver will assume a
1026 register layout for 64 pins (8 registers).
1029 tristate "FXL6408 I2C GPIO expander"
1033 GPIO driver for Fairchild Semiconductor FXL6408 GPIO expander.
1035 To compile this driver as a module, choose M here: the module will
1036 be called gpio-fxl6408.
1039 tristate "DS4520 I2C GPIO expander"
1043 GPIO driver for ADI DS4520 I2C-based GPIO expander.
1044 Say yes here to enable the GPIO driver for the ADI DS4520 chip.
1046 To compile this driver as a module, choose M here: the module will
1047 be called gpio-ds4520.
1050 tristate "Gateworks PLD GPIO Expander"
1053 Say yes here to provide access to the Gateworks I2C PLD GPIO
1054 Expander. This is used at least on the Cambria GW2358-4.
1057 tristate "Maxim MAX7300 GPIO expander"
1060 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
1063 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
1065 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
1066 Port Expanders. Each IO port on these chips has a fixed role of
1067 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
1068 Input and Output (designed by 'P'). The combinations are listed
1071 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
1072 max7322 (4I4O), max7323 (4P4O)
1074 16 bits: max7324 (8I8O), max7325 (8P8O),
1075 max7326 (4I12O), max7327 (4P12O)
1077 Board setup code must specify the model to use, and the start
1078 number for these GPIOs.
1080 config GPIO_MAX732X_IRQ
1081 bool "Interrupt controller support for MAX732x"
1082 depends on GPIO_MAX732X=y
1083 select GPIOLIB_IRQCHIP
1085 Say yes here to enable the max732x to be used as an interrupt
1086 controller. It requires the driver to be built in the kernel.
1089 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
1092 Say yes here to provide access to several register-oriented
1093 SMBus I/O expanders, made mostly by NXP or TI. Compatible
1096 4 bits: pca9536, pca9537
1098 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
1099 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
1101 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
1106 40 bits: pca9505, pca9698
1108 config GPIO_PCA953X_IRQ
1109 bool "Interrupt controller support for PCA953x"
1110 depends on GPIO_PCA953X
1111 select GPIOLIB_IRQCHIP
1113 Say yes here to enable the pca953x to be used as an interrupt
1117 tristate "PCA9570 4-Bit I2C GPO expander"
1119 Say yes here to enable the GPO driver for the NXP PCA9570 chip.
1121 To compile this driver as a module, choose M here: the module will
1122 be called gpio-pca9570.
1125 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
1126 select GPIOLIB_IRQCHIP
1129 Say yes here to provide access to most "quasi-bidirectional" I2C
1130 GPIO expanders used for additional digital outputs or inputs.
1131 Most of these parts are from NXP, though TI is a second source for
1132 some of them. Compatible models include:
1134 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
1135 pca9670, pca9672, pca9674, pca9674a,
1138 16 bits: pcf8575, pcf8575c, pca8575,
1139 pca9671, pca9673, pca9675
1141 Your board setup code will need to declare the expanders in
1142 use, and assign numbers to the GPIOs they expose. Those GPIOs
1143 can then be used from drivers and other kernel code, just like
1144 other GPIOs, but only accessible from task contexts.
1146 This driver provides an in-kernel interface to those GPIOs using
1147 platform-neutral GPIO calls.
1149 config GPIO_TPIC2810
1150 tristate "TPIC2810 8-Bit I2C GPO expander"
1152 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
1154 To compile this driver as a module, choose M here: the module will
1155 be called gpio-tpic2810.
1158 tristate "Technologic Systems FPGA I2C GPIO"
1159 depends on SOC_IMX6 || COMPILE_TEST
1162 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
1163 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
1167 menu "MFD GPIO expanders"
1170 tristate "GPIO Support for ADP5520 PMIC"
1171 depends on PMIC_ADP5520
1173 This option enables support for on-chip GPIO found
1174 on Analog Devices ADP5520 PMICs.
1176 config GPIO_ALTERA_A10SR
1177 tristate "Altera Arria10 System Resource GPIO"
1178 depends on MFD_ALTERA_A10SR
1180 Driver for Arria10 Development Kit GPIO expansion which
1181 includes reads of pushbuttons and DIP switches as well
1185 tristate "Wolfson Microelectronics Arizona class devices"
1186 depends on MFD_ARIZONA
1188 Support for GPIOs on Wolfson Arizona class devices.
1191 tristate "ROHM BD71815 PMIC GPIO support"
1192 depends on MFD_ROHM_BD71828
1194 Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs
1195 available on the ROHM PMIC.
1197 This driver can also be built as a module. If so, the module
1198 will be called gpio-bd71815.
1201 tristate "ROHM BD71828 GPIO support"
1202 depends on MFD_ROHM_BD71828
1204 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs
1205 available on the ROHM PMIC in total. The GPIOs are limited to
1206 outputs only and pins must be configured to GPIO outputs by
1207 OTP. Enable this only if you want to use these pins as outputs.
1209 This driver can also be built as a module. If so, the module
1210 will be called gpio-bd71828.
1212 config GPIO_BD9571MWV
1213 tristate "ROHM BD9571 GPIO support"
1214 depends on MFD_BD9571MWV
1216 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
1217 available on the ROHM PMIC in total, both of which can also
1218 generate interrupts.
1220 This driver can also be built as a module. If so, the module
1221 will be called gpio-bd9571mwv.
1223 config GPIO_CRYSTAL_COVE
1224 tristate "GPIO support for Crystal Cove PMIC"
1225 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1226 select GPIOLIB_IRQCHIP
1228 Support for GPIO pins on Crystal Cove PMIC.
1230 Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC
1233 This driver can also be built as a module. If so, the module will be
1234 called gpio-crystalcove.
1237 tristate "AMD CS5535/CS5536 GPIO support"
1238 depends on X86 || MIPS || COMPILE_TEST
1239 depends on MFD_CS5535
1241 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1242 can be used for quite a number of things. The CS5535/6 is found on
1243 AMD Geode and Lemote Yeeloong devices.
1248 tristate "Dialog DA9052 GPIO"
1249 depends on PMIC_DA9052
1251 Say yes here to enable the GPIO driver for the DA9052 chip.
1254 tristate "Dialog Semiconductor DA9055 GPIO"
1255 depends on MFD_DA9055
1257 Say yes here to enable the GPIO driver for the DA9055 chip.
1259 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1260 be controlled by this driver.
1262 If driver is built as a module it will be called gpio-da9055.
1265 tristate "Diolan DLN2 GPIO support"
1267 select GPIOLIB_IRQCHIP
1270 Select this option to enable GPIO driver for the Diolan DLN2
1273 This driver can also be built as a module. If so, the module
1274 will be called gpio-dln2.
1277 bool "HTC EGPIO support"
1280 This driver supports the CPLD egpio chip present on
1281 several HTC phones. It provides basic support for input
1282 pins, output pins, and IRQs.
1284 config GPIO_ELKHARTLAKE
1285 tristate "Intel Elkhart Lake PSE GPIO support"
1286 depends on X86 || COMPILE_TEST
1289 Select this option to enable GPIO support for Intel Elkhart Lake
1292 To compile this driver as a module, choose M here: the module will
1293 be called gpio-elkhartlake.
1295 config GPIO_JANZ_TTL
1296 tristate "Janz VMOD-TTL Digital IO Module"
1297 depends on MFD_JANZ_CMODIO
1299 This enables support for the Janz VMOD-TTL Digital IO module.
1300 This driver provides support for driving the pins in output
1301 mode only. Input mode is not supported.
1304 tristate "Kontron ETX / COMexpress GPIO"
1305 depends on MFD_KEMPLD
1307 This enables support for the PLD GPIO interface on some Kontron ETX
1308 and COMexpress (ETXexpress) modules.
1310 This driver can also be built as a module. If so, the module will be
1314 tristate "INTEL La Jolla Cove Adapter GPIO support"
1316 select GPIOLIB_IRQCHIP
1319 Select this option to enable GPIO driver for the INTEL
1320 La Jolla Cove Adapter (LJCA) board.
1322 This driver can also be built as a module. If so, the module
1323 will be called gpio-ljca.
1326 tristate "TI/National Semiconductor LP3943 GPIO expander"
1327 depends on MFD_LP3943
1329 GPIO driver for LP3943 MFD.
1330 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1331 Open drain outputs are required for this usage.
1334 tristate "TI LP873X GPO"
1335 depends on MFD_TI_LP873X
1337 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1340 This driver can also be built as a module. If so, the module will be
1344 tristate "TI LP87565 GPIO"
1345 depends on MFD_TI_LP87565
1347 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1350 This driver can also be built as a module. If so, the module will be
1351 called gpio-lp87565.
1354 tristate "Cirrus Logic Madera class codecs"
1355 depends on PINCTRL_MADERA
1357 Support for GPIOs on Cirrus Logic Madera class codecs.
1359 config GPIO_MAX77620
1360 tristate "GPIO support for PMIC MAX77620 and MAX20024"
1361 depends on MFD_MAX77620
1362 select GPIOLIB_IRQCHIP
1364 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1365 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1366 driver also provides interrupt support for each of the GPIOs.
1367 Say yes here to enable the max77620 to be used as GPIO controller.
1369 config GPIO_MAX77650
1370 tristate "Maxim MAX77650/77651 GPIO support"
1371 depends on MFD_MAX77650
1373 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1374 These chips have a single pin that can be configured as GPIO.
1377 bool "TI PALMAS series PMICs GPIO"
1378 depends on MFD_PALMAS
1380 Select this option to enable GPIO driver for the TI PALMAS
1383 config GPIO_PMIC_EIC_SPRD
1384 tristate "Spreadtrum PMIC EIC support"
1385 depends on MFD_SC27XX_PMIC || COMPILE_TEST
1387 select GPIOLIB_IRQCHIP
1389 Say yes here to support Spreadtrum PMIC EIC device.
1392 bool "RICOH RC5T583 GPIO"
1393 depends on MFD_RC5T583
1395 Select this option to enable GPIO driver for the Ricoh RC5T583
1397 This driver provides the support for driving/reading the GPIO pins
1398 of RC5T583 device through standard GPIO library.
1400 config GPIO_SL28CPLD
1401 tristate "Kontron sl28cpld GPIO support"
1402 depends on MFD_SL28CPLD || COMPILE_TEST
1404 select GPIOLIB_IRQCHIP
1407 This enables support for the GPIOs found on the Kontron sl28 CPLD.
1409 This driver can also be built as a module. If so, the module will be
1410 called gpio-sl28cpld.
1414 depends on MFD_STMPE
1416 select GPIOLIB_IRQCHIP
1418 This enables support for the GPIOs found on the STMPE I/O
1422 bool "TC3589X GPIOs"
1423 depends on MFD_TC3589X
1425 select GPIOLIB_IRQCHIP
1427 This enables support for the GPIOs found on the TC3589X
1430 config GPIO_TIMBERDALE
1431 bool "Support for timberdale GPIO IP"
1432 depends on MFD_TIMBERDALE
1434 Add support for the GPIO IP in the timberdale FPGA.
1436 config GPIO_TN48M_CPLD
1437 tristate "Delta Networks TN48M switch CPLD GPIO driver"
1438 depends on MFD_TN48M_CPLD
1441 This enables support for the GPIOs found on the Delta
1442 Networks TN48M switch Lattice CPLD. It provides 12 pins in total,
1443 they are input-only or output-only type.
1445 This driver can also be built as a module. If so, the
1446 module will be called gpio-tn48m.
1448 config GPIO_TPS65086
1449 tristate "TI TPS65086 GPO"
1450 depends on MFD_TPS65086
1452 This driver supports the GPO on TI TPS65086x PMICs.
1454 config GPIO_TPS65218
1455 tristate "TPS65218 GPIO"
1456 depends on MFD_TPS65218
1458 Select this option to enable GPIO driver for the TPS65218
1461 config GPIO_TPS65219
1462 tristate "TPS65219 GPIO"
1463 depends on MFD_TPS65219
1464 default MFD_TPS65219
1466 Select this option to enable GPIO driver for the TPS65219 chip
1468 GPIO0 is statically configured as either input or output prior to
1469 Linux boot. It is used for MULTI_DEVICE_ENABLE function. This setting
1470 is statically configured by NVM. GPIO0 can't be used as a generic
1471 GPIO. It's either a GPO when MULTI_DEVICE_EN=0 or a GPI when
1474 This driver can also be built as a module. If so, the module will be
1475 called gpio_tps65219.
1477 config GPIO_TPS6586X
1478 bool "TPS6586X GPIO"
1479 depends on MFD_TPS6586X
1481 Select this option to enable GPIO driver for the TPS6586X
1484 config GPIO_TPS65910
1485 bool "TPS65910 GPIO"
1486 depends on MFD_TPS65910
1488 Select this option to enable GPIO driver for the TPS65910
1491 config GPIO_TPS65912
1492 tristate "TI TPS65912 GPIO"
1493 depends on MFD_TPS65912
1495 This driver supports TPS65912 GPIO chip.
1497 config GPIO_TPS68470
1498 tristate "TPS68470 GPIO"
1499 depends on INTEL_SKL_INT3472
1501 Select this option to enable GPIO driver for the TPS68470
1503 There are 7 GPIOs and few sensor-related GPIOs supported
1504 by the TPS68470. While the 7 GPIOs can be configured as
1505 input or output as appropriate, the sensor related GPIOs
1506 are "output only" GPIOs.
1509 tristate "TQ-Systems QTMX86 GPIO"
1510 depends on MFD_TQMX86 || COMPILE_TEST
1511 depends on HAS_IOPORT_MAP
1512 select GPIOLIB_IRQCHIP
1514 This driver supports GPIO on the TQMX86 IO controller.
1517 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1518 depends on TWL4030_CORE
1520 Say yes here to access the GPIO signals of various multi-function
1521 power management chips from Texas Instruments.
1524 tristate "TWL6040 GPO"
1525 depends on TWL6040_CORE
1527 Say yes here to access the GPO signals of twl6040
1528 audio chip from Texas Instruments.
1530 config GPIO_WHISKEY_COVE
1531 tristate "GPIO support for Whiskey Cove PMIC"
1532 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1533 select GPIOLIB_IRQCHIP
1535 Support for GPIO pins on Whiskey Cove PMIC.
1537 Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC
1540 This driver can also be built as a module. If so, the module will be
1544 tristate "WM831x GPIOs"
1545 depends on MFD_WM831X
1547 Say yes here to access the GPIO signals of WM831x power management
1548 chips from Wolfson Microelectronics.
1551 tristate "WM8350 GPIOs"
1552 depends on MFD_WM8350
1554 Say yes here to access the GPIO signals of WM8350 power management
1555 chips from Wolfson Microelectronics.
1558 tristate "WM8994 GPIOs"
1559 depends on MFD_WM8994
1561 Say yes here to access the GPIO signals of WM8994 audio hub
1562 CODECs from Wolfson Microelectronics.
1566 menu "PCI GPIO expanders"
1570 tristate "AMD 8111 GPIO driver"
1571 depends on X86 || COMPILE_TEST
1572 depends on HAS_IOPORT_MAP
1574 The AMD 8111 southbridge contains 32 GPIO pins which can be used.
1576 Note that usually system firmware/ACPI handles GPIO pins on their
1577 own and users might easily break their systems with uncareful usage
1583 tristate "BT8XX GPIO abuser"
1584 depends on VIDEO_BT848=n
1586 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1587 as a cheap PCI GPIO card.
1589 This chip can be found on Miro, Hauppauge and STB TV-cards.
1591 The card needs to be physically altered for using it as a
1592 GPIO card. For more information on how to build a GPIO card
1593 from a BT8xx TV card, see the documentation file at
1594 Documentation/driver-api/gpio/bt8xxgpio.rst
1598 config GPIO_MERRIFIELD
1599 tristate "Intel Merrifield GPIO support"
1600 depends on X86_INTEL_MID
1603 Say Y here to support Intel Merrifield GPIO.
1606 tristate "Mellanox BlueField SoC GPIO"
1607 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1610 Say Y here if you want GPIO support on Mellanox BlueField SoC.
1613 tristate "Mellanox BlueField 2 SoC GPIO"
1614 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1616 select GPIOLIB_IRQCHIP
1618 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC.
1621 tristate "Mellanox BlueField 3 SoC GPIO"
1622 depends on (MELLANOX_PLATFORM && ARM64) || COMPILE_TEST
1624 select GPIOLIB_IRQCHIP
1626 Say Y if you want GPIO support on Mellanox BlueField 3 SoC.
1627 This GPIO controller supports interrupt handling and enables the
1628 manipulation of certain GPIO pins.
1629 This controller should be used in parallel with pinctrl-mlxbf3 to
1630 control the desired GPIOs.
1631 This driver can also be built as a module called mlxbf3-gpio.
1634 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1635 depends on X86 || COMPILE_TEST
1636 select GENERIC_IRQ_CHIP
1638 ML7213 is companion chip for Intel Atom E6xx series.
1639 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output
1640 Hub) which is for IVI (In-Vehicle Infotainment) use.
1641 This driver can access the IOH's GPIO device.
1644 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO"
1645 depends on X86_32 || MIPS || COMPILE_TEST
1646 select GENERIC_IRQ_CHIP
1648 This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff,
1649 which is an IOH (Input/Output Hub) for x86 embedded processor.
1650 This driver can access PCH GPIO device.
1652 This driver also can be used for LAPIS Semiconductor IOH (Input/
1653 Output Hub), ML7223 and ML7831.
1654 ML7223 IOH is for MP (Media Phone) use.
1655 ML7831 IOH is for general purpose use.
1656 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1657 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1659 config GPIO_PCI_IDIO_16
1660 tristate "ACCES PCI-IDIO-16 GPIO support"
1664 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1665 generated when any of the inputs change state (low to high or high to
1666 low). Input filter control is not supported by this driver, and the
1667 input filters are deactivated by this driver.
1669 config GPIO_PCIE_IDIO_24
1670 tristate "ACCES PCIe-IDIO-24 GPIO support"
1673 select GPIOLIB_IRQCHIP
1676 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1677 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1678 when any of the inputs change state (low to high or high to low).
1679 Input filter control is not supported by this driver, and the input
1680 filters are deactivated by this driver.
1683 tristate "RDC R-321x GPIO support"
1687 Support for the RDC R321x SoC GPIOs over southbridge
1688 PCI configuration space.
1690 config GPIO_SODAVILLE
1691 bool "Intel Sodaville GPIO support"
1692 depends on X86 && OF
1694 select GENERIC_IRQ_CHIP
1696 Say Y here to support Intel Sodaville GPIO.
1700 menu "SPI GPIO expanders"
1701 depends on SPI_MASTER
1704 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1707 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1708 shift registers. This driver can be used to provide access
1709 to more GPIO outputs.
1711 config GPIO_MAX3191X
1712 tristate "Maxim MAX3191x industrial serializer"
1715 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1716 MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1717 chip to make 8 digital 24V inputs available via SPI. Supports
1718 CRC checksums to guard against electromagnetic interference,
1719 as well as undervoltage and overtemperature detection.
1722 tristate "Maxim MAX7301 GPIO expander"
1725 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1728 tristate "Freescale MC33880 high-side/low-side switch"
1730 SPI driver for Freescale MC33880 high-side/low-side switch.
1731 This provides GPIO interface supporting inputs and outputs.
1734 tristate "Generic parallel-in/serial-out shift register"
1736 GPIO driver for SPI compatible parallel-in/serial-out shift
1737 registers. These are input only devices.
1740 tristate "EXAR XRA1403 16-bit GPIO expander"
1743 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1746 tristate "Turris Mox Moxtet bus GPIO expander"
1749 Say yes here if you are building for the Turris Mox router.
1750 This is the driver needed for configuring the GPIOs via the Moxtet
1751 bus. For example the Mox module with SFP cage needs this driver
1752 so that phylink can use corresponding GPIOs.
1756 menu "USB GPIO expanders"
1759 config GPIO_VIPERBOARD
1760 tristate "Viperboard GPIO a & b support"
1761 depends on MFD_VIPERBOARD
1763 Say yes here to access the GPIO signals of Nano River
1764 Technologies Viperboard. There are two GPIO chips on the
1765 board: gpioa and gpiob.
1766 See viperboard API specification and Nano
1767 River Tech's viperboard.h for detailed meaning
1768 of the module parameters.
1772 menu "Virtual GPIO drivers"
1774 config GPIO_AGGREGATOR
1775 tristate "GPIO Aggregator"
1777 Say yes here to enable the GPIO Aggregator, which provides a way to
1778 aggregate existing GPIO lines into a new virtual GPIO chip.
1779 This can serve the following purposes:
1780 - Assign permissions for a collection of GPIO lines to a user,
1781 - Export a collection of GPIO lines to a virtual machine,
1782 - Provide a generic driver for a GPIO-operated device in an
1783 industrial control context, to be operated from userspace using
1784 the GPIO chardev interface.
1787 tristate "GPIO latch driver"
1789 Say yes here to enable a driver for GPIO multiplexers based on latches
1790 connected to other GPIOs.
1793 tristate "GPIO Testing Driver"
1796 This enables GPIO Testing driver, which provides a way to test GPIO
1797 subsystem through sysfs (or char device) and debugfs.
1798 User could use it through the script in
1799 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1803 tristate "VirtIO GPIO support"
1805 select GPIOLIB_IRQCHIP
1807 Say Y here to enable guest support for virtio-based GPIO controllers.
1809 These virtual GPIOs can be routed to real GPIOs or attached to
1810 simulators on the host (like QEMU).
1813 tristate "GPIO Simulator Module"
1817 This enables the GPIO simulator - a configfs-based GPIO testing