1 # SPDX-License-Identifier: GPL-2.0-only
3 # GPIO infrastructure and drivers
6 config ARCH_HAVE_CUSTOM_GPIO_H
9 Selecting this config option from the architecture Kconfig allows
10 the architecture to provide a custom asm/gpio.h implementation
11 overriding the default implementations. New uses of this are
17 This enables GPIO support through the generic GPIO library.
18 You only need to enable this, if you also want to enable
19 one or more of the GPIO drivers below.
25 config GPIOLIB_FASTPATH_LIMIT
26 int "Maximum number of GPIOs for fast path"
30 This adjusts the point at which certain APIs will switch from
31 using a stack allocated buffer to a dynamically allocated buffer.
33 You shouldn't need to change this unless you really need to
34 optimize either stack space or performance. Change this carefully
35 since setting an incorrect value could cause stack corruption.
46 config GPIOLIB_IRQCHIP
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)"
65 Say Y here to add the legacy sysfs interface for GPIOs.
67 This ABI is deprecated. If you want to use GPIO from userspace,
68 use the character device /dev/gpiochipN with the appropriate
69 ioctl() operations instead. The character device is always
73 depends on HAS_IOMEM # Only for IOMEM drivers
76 # put drivers in the right section, in alphabetical order
78 # This symbol is selected by both I2C and SPI expanders
82 menu "Memory mapped GPIO drivers"
86 tristate "GPIO driver for 74xx-ICs with MMIO access"
90 Say yes here to support GPIO functionality for 74xx-compatible ICs
91 with MMIO access. Compatible models include:
92 1 bit: 741G125 (Input), 741G74 (Output)
93 2 bits: 742G125 (Input), 7474 (Output)
94 4 bits: 74125 (Input), 74175 (Output)
95 6 bits: 74365 (Input), 74174 (Output)
96 8 bits: 74244 (Input), 74273 (Output)
97 16 bits: 741624 (Input), 7416374 (Output)
100 tristate "Altera GPIO"
102 select GPIOLIB_IRQCHIP
104 Say Y or M here to build support for the Altera PIO device.
106 If driver is built as a module it will be called gpio-altera.
109 tristate "AMD Promontory GPIO support"
113 driver for GPIO functionality on Promontory IOHub
114 Require ACPI ASL code to enumerate as a platform device.
117 tristate "Aspeed GPIO support"
118 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
119 select GPIOLIB_IRQCHIP
121 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
123 config GPIO_ASPEED_SGPIO
124 bool "Aspeed SGPIO support"
125 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
127 select GPIOLIB_IRQCHIP
129 Say Y here to support Aspeed AST2500 SGPIO functionality.
132 tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
134 depends on ATH79 || COMPILE_TEST
136 select GPIOLIB_IRQCHIP
138 Select this option to enable GPIO driver for
139 Atheros AR71XX/AR724X/AR913X SoC devices.
141 config GPIO_RASPBERRYPI_EXP
142 tristate "Raspberry Pi 3 GPIO Expander"
143 default RASPBERRYPI_FIRMWARE
145 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
146 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
147 depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
149 Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
150 the firmware mailbox to communicate with VideoCore on BCM283x chips.
153 bool "Broadcom Kona GPIO"
154 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
156 Turn on GPIO support for Broadcom "Kona" chips.
158 config GPIO_BCM_XGS_IPROC
159 tristate "BRCM XGS iProc GPIO support"
160 depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST)
162 select GPIOLIB_IRQCHIP
163 default ARCH_BCM_IPROC
165 Say yes here to enable GPIO support for Broadcom XGS iProc SoCs.
168 tristate "BRCMSTB GPIO support"
169 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
170 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
174 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
177 tristate "Cadence GPIO support"
180 select GPIOLIB_IRQCHIP
182 Say yes here to enable support for Cadence GPIO controller.
185 tristate "CLPS711X GPIO support"
186 depends on ARCH_CLPS711X || COMPILE_TEST
189 Say yes here to support GPIO on CLPS711X SoCs.
192 bool "TI Davinci/Keystone GPIO support"
193 default y if ARCH_DAVINCI
194 depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3)
196 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
199 tristate "Synopsys DesignWare APB GPIO driver"
201 select GENERIC_IRQ_CHIP
203 Say Y or M here to build support for the Synopsys DesignWare APB
207 tristate "Spreadtrum EIC support"
208 depends on ARCH_SPRD || COMPILE_TEST
210 select GPIOLIB_IRQCHIP
212 Say yes here to support Spreadtrum EIC device.
215 tristate "Emma Mobile GPIO"
216 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
218 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
222 depends on ARCH_EP93XX
224 select GPIOLIB_IRQCHIP
227 tristate "Support for GPIO pins on XR17V352/354/358"
228 depends on SERIAL_8250_EXAR
230 Selecting this option will enable handling of GPIO pins present
231 on Exar XR17V352/354/358 chips.
234 bool "GE FPGA based GPIO"
238 Support for common GPIO functionality provided on some GE Single Board
241 This driver provides basic support (configure as input or output, read
242 and write pin state) for GPIO implemented in a number of GE single
245 config GPIO_FTGPIO010
246 bool "Faraday FTGPIO010 GPIO"
249 select GPIOLIB_IRQCHIP
250 default (ARCH_GEMINI || ARCH_MOXART)
252 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
253 Cortina systems Gemini platforms, Moxa ART and others.
255 config GPIO_GENERIC_PLATFORM
256 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
259 Say yes here to support basic platform_device memory-mapped GPIO controllers.
262 tristate "Aeroflex Gaisler GRGPIO support"
267 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
268 VHDL IP core library.
271 tristate "Nintendo Wii (Hollywood) GPIO"
274 select GPIOLIB_IRQCHIP
276 Select this to support the GPIO controller of the Nintendo Wii.
281 tristate "Intel ICH GPIO"
282 depends on PCI && X86
286 Say yes here to support the GPIO functionality of a number of Intel
287 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
288 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
289 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
294 tristate "Intel IOP GPIO"
295 depends on ARCH_IOP32X || COMPILE_TEST
298 Say yes here to support the GPIO functionality of a number of Intel
304 bool "Intel IXP4xx GPIO"
305 depends on ARM # For <asm/mach-types.h>
306 depends on ARCH_IXP4XX
308 select GPIOLIB_IRQCHIP
309 select IRQ_DOMAIN_HIERARCHY
311 Say yes here to support the GPIO functionality of a number of Intel
312 IXP4xx series of chips.
316 tristate "Xylon LogiCVC GPIO support"
317 depends on MFD_SYSCON && OF
319 Say yes here to support GPIO functionality of the Xylon LogiCVC
320 programmable logic block.
323 bool "Loongson-2/3 GPIO support"
324 depends on CPU_LOONGSON2EF || CPU_LOONGSON64
326 driver for GPIO functionality on Loongson-2F/3A/3B processors.
329 tristate "NXP LPC18XX/43XX GPIO support"
330 default y if ARCH_LPC18XX
331 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
332 select IRQ_DOMAIN_HIERARCHY
334 Select this option to enable GPIO driver for
335 NXP LPC18XX/43XX devices.
338 tristate "NXP LPC32XX GPIO support"
339 depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST)
341 Select this option to enable GPIO driver for
344 config GPIO_LYNXPOINT
345 tristate "Intel Lynxpoint GPIO support"
346 depends on ACPI && X86
347 select GPIOLIB_IRQCHIP
349 driver for GPIO functionality on Intel Lynxpoint PCH chipset
350 Requires ACPI device enumeration code to set up a platform device.
353 tristate "GPIO support for Fujitsu MB86S7x Platforms"
355 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
358 tristate "MEN 16Z127 GPIO support"
362 Say yes here to support the MEN 16Z127 GPIO Controller
364 config GPIO_MM_LANTIQ
365 bool "Lantiq Memory mapped GPIOs"
366 depends on LANTIQ && SOC_XWAY
368 This enables support for memory mapped GPIOs on the External Bus Unit
369 (EBU) found on Lantiq SoCs. The gpios are output only as they are
370 created by attaching a 16bit latch to the bus.
374 depends on PPC_MPC52xx
377 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
378 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
379 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
384 Say Y here if you're going to use hardware that connects to the
385 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
388 bool "Mediatek MT7621 GPIO Support"
389 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
392 select GPIOLIB_IRQCHIP
394 Say yes here to support the Mediatek MT7621 SoC GPIO device
398 depends on PLAT_ORION || ARCH_MVEBU
400 select GENERIC_IRQ_CHIP
407 select GENERIC_IRQ_CHIP
413 select GENERIC_IRQ_CHIP
416 tristate "Cavium OCTEON GPIO"
417 depends on GPIOLIB && CAVIUM_OCTEON_SOC
420 Say yes here to support the on-chip GPIO lines on the OCTEON
424 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
425 default y if ARCH_OMAP
427 select GENERIC_IRQ_CHIP
428 select GPIOLIB_IRQCHIP
430 Say yes here to enable GPIO support for TI OMAP SoCs.
433 bool "PrimeCell PL061 GPIO support"
436 select GPIOLIB_IRQCHIP
438 Say yes here to support the PrimeCell PL061 GPIO device
440 config GPIO_PMIC_EIC_SPRD
441 tristate "Spreadtrum PMIC EIC support"
442 depends on MFD_SC27XX_PMIC || COMPILE_TEST
444 select GPIOLIB_IRQCHIP
446 Say yes here to support Spreadtrum PMIC EIC device.
449 bool "PXA GPIO support"
450 depends on ARCH_PXA || ARCH_MMP
452 Say yes here to support the PXA GPIO device
455 tristate "Renesas R-Car GPIO"
456 depends on ARCH_RENESAS || COMPILE_TEST
457 select GPIOLIB_IRQCHIP
459 Say yes here to support GPIO on Renesas R-Car SoCs.
462 bool "RDA Micro GPIO controller support"
463 depends on ARCH_RDA || COMPILE_TEST
466 select GPIOLIB_IRQCHIP
468 Say Y here to support RDA Micro GPIO controller.
473 A 32-bit single register GPIO fixed in/out implementation. This
474 can be used to represent any register as a set of GPIO signals.
476 config GPIO_SAMA5D2_PIOBU
477 tristate "SAMA5D2 PIOBU GPIO support"
478 depends on MFD_SYSCON
482 Say yes here to use the PIOBU pins as GPIOs.
484 PIOBU pins on the SAMA5D2 can be used as GPIOs.
485 The difference from regular GPIOs is that they
486 maintain their value during backup/self-refresh.
489 bool "SiFive GPIO support"
490 depends on OF_GPIO && IRQ_DOMAIN_HIERARCHY
492 select GPIOLIB_IRQCHIP
495 Say yes here to support the GPIO device on SiFive SoCs.
498 tristate "SIOX GPIO support"
500 select GPIOLIB_IRQCHIP
502 Say yes here to support SIOX I/O devices. These are units connected
503 via a SIOX bus and have a number of fixed-direction I/O lines.
505 config GPIO_SNPS_CREG
506 bool "Synopsys GPIO via CREG (Control REGisters) driver"
507 depends on ARC || COMPILE_TEST
510 This driver supports GPIOs via CREG on various Synopsys SoCs.
511 This is a single-register MMIO GPIO driver for complex cases
512 where only several fields in register belong to GPIO lines and
513 each GPIO line owns a field with different length and on/off value.
515 config GPIO_SPEAR_SPICS
516 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
517 depends on PLAT_SPEAR
518 select GENERIC_IRQ_CHIP
520 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
523 tristate "Spreadtrum GPIO support"
524 depends on ARCH_SPRD || COMPILE_TEST
526 select GPIOLIB_IRQCHIP
528 Say yes here to support Spreadtrum GPIO device.
531 bool "STA2x11/ConneXt GPIO support"
532 depends on MFD_STA2X11
533 select GENERIC_IRQ_CHIP
535 Say yes here to support the STA2x11/ConneXt GPIO device.
536 The GPIO module has 128 GPIO pins with alternate functions.
539 bool "XWAY STP GPIOs"
540 depends on SOC_XWAY || COMPILE_TEST
543 This enables support for the Serial To Parallel (STP) unit found on
544 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
545 that can be up to 24 bit. This peripheral is aimed at driving leds.
546 Some of the gpios/leds can be auto updated by the soc with dsl and
550 tristate "GPIO based on SYSCON"
551 depends on MFD_SYSCON && OF
553 Say yes here to support GPIO functionality though SYSCON driver.
558 select GENERIC_IRQ_CHIP
562 bool "NVIDIA Tegra GPIO support"
564 depends on ARCH_TEGRA || COMPILE_TEST
567 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
570 tristate "NVIDIA Tegra186 GPIO support"
571 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC
572 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST
574 select GPIOLIB_IRQCHIP
575 select IRQ_DOMAIN_HIERARCHY
577 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
580 tristate "TS-4800 DIO blocks and compatibles"
582 depends on SOC_IMX51 || COMPILE_TEST
585 This driver support TS-4800 FPGA GPIO controllers.
588 tristate "Cavium ThunderX/OCTEON-TX GPIO"
589 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
591 select GPIOLIB_IRQCHIP
592 select IRQ_DOMAIN_HIERARCHY
593 select IRQ_FASTEOI_HIERARCHY_HANDLERS
595 Say yes here to support the on-chip GPIO lines on the ThunderX
596 and OCTEON-TX families of SoCs.
599 tristate "UniPhier GPIO support"
600 depends on ARCH_UNIPHIER || COMPILE_TEST
602 select IRQ_DOMAIN_HIERARCHY
604 Say yes here to support UniPhier GPIOs.
608 depends on ARCH_MXC && SOC_VF610
609 select GPIOLIB_IRQCHIP
611 Say yes here to support Vybrid vf610 GPIOs.
614 tristate "NEC VR4100 series General-purpose I/O Uint support"
615 depends on CPU_VR41XX
617 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
620 tristate "VIA VX855/VX875 GPIO"
621 depends on (X86 || COMPILE_TEST) && PCI
625 Support access to the VX855/VX875 GPIO lines through the gpio library.
627 This driver provides common support for accessing the device,
628 additional drivers must be enabled in order to use the
629 functionality of the device.
632 tristate "Qualcomm Technologies Inc WCD9340/WCD9341 gpio controller driver"
633 depends on MFD_WCD934X && OF_GPIO
635 This driver is to supprot GPIO block found on the Qualcomm Technologies
636 Inc WCD9340/WCD9341 Audio Codec.
639 bool "APM X-Gene GPIO controller support"
640 depends on ARM64 && OF_GPIO
642 This driver is to support the GPIO block within the APM X-Gene SoC
643 platform's generic flash controller. The GPIO pins are muxed with
644 the generic flash controller's address and data pins. Say yes
645 here to enable the GFC GPIO functionality.
648 tristate "APM X-Gene GPIO standby controller support"
649 depends on ARCH_XGENE && OF_GPIO
651 select GPIOLIB_IRQCHIP
652 select IRQ_DOMAIN_HIERARCHY
654 This driver supports the GPIO block within the APM X-Gene
655 Standby Domain. Say yes here to enable the GPIO functionality.
658 tristate "Xilinx GPIO support"
660 Say yes here to support the Xilinx FPGA GPIO device
663 tristate "Netlogic XLP GPIO support"
664 depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
665 select GPIOLIB_IRQCHIP
667 This driver provides support for GPIO interface on Netlogic XLP MIPS64
668 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
669 XLP9XX and XLP5XX. The same GPIO controller block is also present in
670 Cavium's ThunderX2 CN99XX SoCs.
675 bool "Xtensa GPIO32 support"
677 depends on HAVE_XTENSA_GPIO32
680 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
681 and EXPSTATE (output) ports
684 bool "LSI ZEVIO SoC memory mapped GPIOs"
685 depends on ARM && OF_GPIO
687 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
690 tristate "Xilinx Zynq GPIO support"
691 depends on ARCH_ZYNQ || ARCH_ZYNQMP
692 select GPIOLIB_IRQCHIP
694 Say yes here to support Xilinx Zynq GPIO controller.
697 bool "ZTE ZX GPIO support"
698 depends on ARCH_ZX || COMPILE_TEST
699 select GPIOLIB_IRQCHIP
701 Say yes here to support the GPIO device on ZTE ZX SoCs.
703 config GPIO_LOONGSON1
704 tristate "Loongson1 GPIO support"
705 depends on MACH_LOONGSON32
708 Say Y or M here to support GPIO on Loongson1 SoCs.
711 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
713 This option enables driver for GPIO on AMDs Fusion Controller Hub,
714 as found on G-series SOCs (eg. GX-412TC)
716 Note: This driver doesn't registers itself automatically, as it
717 needs to be provided with platform specific configuration.
718 (See eg. CONFIG_PCENGINES_APU2.)
721 menu "Port-mapped I/O GPIO drivers"
722 depends on X86 # Unconditional I/O space access
724 config GPIO_104_DIO_48E
725 tristate "ACCES 104-DIO-48E GPIO support"
728 select GPIOLIB_IRQCHIP
730 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
731 104-DIO-24E). The base port addresses for the devices may be
732 configured via the base module parameter. The interrupt line numbers
733 for the devices may be configured via the irq module parameter.
735 config GPIO_104_IDIO_16
736 tristate "ACCES 104-IDIO-16 GPIO support"
739 select GPIOLIB_IRQCHIP
741 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
742 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
743 base port addresses for the devices may be configured via the base
744 module parameter. The interrupt line numbers for the devices may be
745 configured via the irq module parameter.
747 config GPIO_104_IDI_48
748 tristate "ACCES 104-IDI-48 GPIO support"
751 select GPIOLIB_IRQCHIP
753 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
754 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
755 the devices may be configured via the base module parameter. The
756 interrupt line numbers for the devices may be configured via the irq
760 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
762 This option enables support for GPIOs found on Fintek Super-I/O
763 chips F71869, F71869A, F71882FG, F71889F and F81866.
765 To compile this driver as a module, choose M here: the module will
766 be called f7188x-gpio.
769 tristate "Diamond Systems GPIO-MM GPIO support"
773 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
775 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
776 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
777 support for these 48 channels of digital I/O.
779 The base port addresses for the devices may be configured via the base
780 array module parameter.
783 tristate "IT87xx GPIO support"
785 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
787 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
788 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
791 To compile this driver as a module, choose M here: the module will
795 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
796 depends on (X86 || COMPILE_TEST) && PCI
800 Say yes here to support GPIO interface on Intel Poulsbo SCH,
801 Intel Tunnel Creek processor, Intel Centerton processor or
802 Intel Quark X1000 SoC.
804 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
805 powered by the core power rail and are turned off during sleep
806 modes (S3 and higher). The remaining four GPIOs are powered by
807 the Intel SCH suspend power supply. These GPIOs remain
808 active during S3. The suspend powered GPIOs can be used to wake the
809 system from the Suspend-to-RAM state.
811 The Intel Tunnel Creek processor has 5 GPIOs powered by the
812 core power rail and 9 from suspend power supply.
814 The Intel Centerton processor has a total of 30 GPIO pins.
815 Twenty-one are powered by the core power rail and 9 from the
816 suspend power supply.
818 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
819 power well and 6 from the suspend power well.
822 tristate "SMSC SCH311x SuperI/O GPIO"
824 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
825 SCH3116 "Super I/O" chipsets.
827 To compile this driver as a module, choose M here: the module will
828 be called gpio-sch311x.
831 tristate "TS-5500 DIO blocks and compatibles"
832 depends on TS5500 || COMPILE_TEST
834 This driver supports Digital I/O exposed by pin blocks found on some
835 Technologic Systems platforms. It includes, but is not limited to, 3
836 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
840 tristate "Winbond Super I/O GPIO support"
843 This option enables support for GPIOs found on Winbond Super I/O
845 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
848 You will need to provide a module parameter "gpios", or a
849 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
850 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
852 To compile this driver as a module, choose M here: the module will
853 be called gpio-winbond.
856 tristate "WinSystems WS16C48 GPIO support"
858 select GPIOLIB_IRQCHIP
860 Enables GPIO support for the WinSystems WS16C48. The base port
861 addresses for the devices may be configured via the base module
862 parameter. The interrupt line numbers for the devices may be
863 configured via the irq module parameter.
867 menu "I2C GPIO expanders"
871 tristate "ADP5588 I2C GPIO expander"
873 This option enables support for 18 GPIOs found
874 on Analog Devices ADP5588 GPIO Expanders.
876 config GPIO_ADP5588_IRQ
877 bool "Interrupt controller support for ADP5588"
878 depends on GPIO_ADP5588=y
879 select GPIOLIB_IRQCHIP
881 Say yes here to enable the adp5588 to be used as an interrupt
882 controller. It requires the driver to be built in the kernel.
885 tristate "Avionic Design N-bit GPIO expander"
887 select GPIOLIB_IRQCHIP
889 This option enables support for N GPIOs found on Avionic Design
890 I2C GPIO expanders. The register space will be extended by powers
891 of two, so the controller will need to accommodate for that. For
892 example: if a controller provides 48 pins, 6 registers will be
893 enough to represent all pins, but the driver will assume a
894 register layout for 64 pins (8 registers).
897 tristate "Gateworks PLD GPIO Expander"
900 Say yes here to provide access to the Gateworks I2C PLD GPIO
901 Expander. This is used at least on the Cambria GW2358-4.
904 tristate "Maxim MAX7300 GPIO expander"
907 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
910 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
912 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
913 Port Expanders. Each IO port on these chips has a fixed role of
914 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
915 Input and Output (designed by 'P'). The combinations are listed
918 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
919 max7322 (4I4O), max7323 (4P4O)
921 16 bits: max7324 (8I8O), max7325 (8P8O),
922 max7326 (4I12O), max7327 (4P12O)
924 Board setup code must specify the model to use, and the start
925 number for these GPIOs.
927 config GPIO_MAX732X_IRQ
928 bool "Interrupt controller support for MAX732x"
929 depends on GPIO_MAX732X=y
930 select GPIOLIB_IRQCHIP
932 Say yes here to enable the max732x to be used as an interrupt
933 controller. It requires the driver to be built in the kernel.
935 config GPIO_MC9S08DZ60
936 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
937 depends on I2C=y && MACH_MX35_3DS
939 Select this to enable the MC9S08DZ60 GPIO driver
942 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
945 Say yes here to provide access to several register-oriented
946 SMBus I/O expanders, made mostly by NXP or TI. Compatible
949 4 bits: pca9536, pca9537
951 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
952 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
954 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
959 40 bits: pca9505, pca9698
961 config GPIO_PCA953X_IRQ
962 bool "Interrupt controller support for PCA953x"
963 depends on GPIO_PCA953X=y
964 select GPIOLIB_IRQCHIP
966 Say yes here to enable the pca953x to be used as an interrupt
967 controller. It requires the driver to be built in the kernel.
970 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
971 select GPIOLIB_IRQCHIP
974 Say yes here to provide access to most "quasi-bidirectional" I2C
975 GPIO expanders used for additional digital outputs or inputs.
976 Most of these parts are from NXP, though TI is a second source for
977 some of them. Compatible models include:
979 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
980 pca9670, pca9672, pca9674, pca9674a,
983 16 bits: pcf8575, pcf8575c, pca8575,
984 pca9671, pca9673, pca9675
986 Your board setup code will need to declare the expanders in
987 use, and assign numbers to the GPIOs they expose. Those GPIOs
988 can then be used from drivers and other kernel code, just like
989 other GPIOs, but only accessible from task contexts.
991 This driver provides an in-kernel interface to those GPIOs using
992 platform-neutral GPIO calls.
995 tristate "TPIC2810 8-Bit I2C GPO expander"
997 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
999 To compile this driver as a module, choose M here: the module will
1000 be called gpio-tpic2810.
1003 tristate "Technologic Systems FPGA I2C GPIO"
1004 depends on SOC_IMX6 || COMPILE_TEST
1007 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
1008 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
1012 menu "MFD GPIO expanders"
1015 tristate "GPIO Support for ADP5520 PMIC"
1016 depends on PMIC_ADP5520
1018 This option enables support for on-chip GPIO found
1019 on Analog Devices ADP5520 PMICs.
1021 config GPIO_ALTERA_A10SR
1022 tristate "Altera Arria10 System Resource GPIO"
1023 depends on MFD_ALTERA_A10SR
1025 Driver for Arria10 Development Kit GPIO expansion which
1026 includes reads of pushbuttons and DIP switches as well
1030 tristate "Wolfson Microelectronics Arizona class devices"
1031 depends on MFD_ARIZONA
1033 Support for GPIOs on Wolfson Arizona class devices.
1036 tristate "ROHM BD70528 GPIO support"
1037 depends on MFD_ROHM_BD70528
1039 Support for GPIOs on ROHM BD70528 PMIC. There are four GPIOs
1040 available on the ROHM PMIC in total. The GPIOs can also
1041 generate interrupts.
1043 This driver can also be built as a module. If so, the module
1044 will be called gpio-bd70528.
1046 config GPIO_BD9571MWV
1047 tristate "ROHM BD9571 GPIO support"
1048 depends on MFD_BD9571MWV
1050 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
1051 available on the ROHM PMIC in total, both of which can also
1052 generate interrupts.
1054 This driver can also be built as a module. If so, the module
1055 will be called gpio-bd9571mwv.
1057 config GPIO_CRYSTAL_COVE
1058 tristate "GPIO support for Crystal Cove PMIC"
1059 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1060 select GPIOLIB_IRQCHIP
1062 Support for GPIO pins on Crystal Cove PMIC.
1064 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
1067 This driver can also be built as a module. If so, the module will be
1068 called gpio-crystalcove.
1071 tristate "AMD CS5535/CS5536 GPIO support"
1072 depends on X86 || MIPS || COMPILE_TEST
1073 depends on MFD_CS5535
1075 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1076 can be used for quite a number of things. The CS5535/6 is found on
1077 AMD Geode and Lemote Yeeloong devices.
1082 tristate "Dialog DA9052 GPIO"
1083 depends on PMIC_DA9052
1085 Say yes here to enable the GPIO driver for the DA9052 chip.
1088 tristate "Dialog Semiconductor DA9055 GPIO"
1089 depends on MFD_DA9055
1091 Say yes here to enable the GPIO driver for the DA9055 chip.
1093 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1094 be controller by this driver.
1096 If driver is built as a module it will be called gpio-da9055.
1099 tristate "Diolan DLN2 GPIO support"
1101 select GPIOLIB_IRQCHIP
1104 Select this option to enable GPIO driver for the Diolan DLN2
1107 This driver can also be built as a module. If so, the module
1108 will be called gpio-dln2.
1111 bool "HTC EGPIO support"
1112 depends on GPIOLIB && ARM
1114 This driver supports the CPLD egpio chip present on
1115 several HTC phones. It provides basic support for input
1116 pins, output pins, and irqs.
1118 config GPIO_JANZ_TTL
1119 tristate "Janz VMOD-TTL Digital IO Module"
1120 depends on MFD_JANZ_CMODIO
1122 This enables support for the Janz VMOD-TTL Digital IO module.
1123 This driver provides support for driving the pins in output
1124 mode only. Input mode is not supported.
1127 tristate "Kontron ETX / COMexpress GPIO"
1128 depends on MFD_KEMPLD
1130 This enables support for the PLD GPIO interface on some Kontron ETX
1131 and COMexpress (ETXexpress) modules.
1133 This driver can also be built as a module. If so, the module will be
1137 tristate "TI/National Semiconductor LP3943 GPIO expander"
1138 depends on MFD_LP3943
1140 GPIO driver for LP3943 MFD.
1141 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1142 Open drain outputs are required for this usage.
1145 tristate "TI LP873X GPO"
1146 depends on MFD_TI_LP873X
1148 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1151 This driver can also be built as a module. If so, the module will be
1155 tristate "TI LP87565 GPIO"
1156 depends on MFD_TI_LP87565
1158 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1161 This driver can also be built as a module. If so, the module will be
1162 called gpio-lp87565.
1165 tristate "Cirrus Logic Madera class codecs"
1166 depends on PINCTRL_MADERA
1168 Support for GPIOs on Cirrus Logic Madera class codecs.
1170 config GPIO_MAX77620
1171 tristate "GPIO support for PMIC MAX77620 and MAX20024"
1172 depends on MFD_MAX77620
1173 select GPIOLIB_IRQCHIP
1175 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1176 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1177 driver also provides interrupt support for each of the gpios.
1178 Say yes here to enable the max77620 to be used as gpio controller.
1180 config GPIO_MAX77650
1181 tristate "Maxim MAX77650/77651 GPIO support"
1182 depends on MFD_MAX77650
1184 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1185 These chips have a single pin that can be configured as GPIO.
1188 bool "Intel MSIC mixed signal gpio support"
1189 depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
1191 Enable support for GPIO on intel MSIC controllers found in
1195 bool "TI PALMAS series PMICs GPIO"
1196 depends on MFD_PALMAS
1198 Select this option to enable GPIO driver for the TI PALMAS
1202 bool "RICOH RC5T583 GPIO"
1203 depends on MFD_RC5T583
1205 Select this option to enable GPIO driver for the Ricoh RC5T583
1207 This driver provides the support for driving/reading the gpio pins
1208 of RC5T583 device through standard gpio library.
1212 depends on MFD_STMPE
1214 select GPIOLIB_IRQCHIP
1216 This enables support for the GPIOs found on the STMPE I/O
1220 bool "TC3589X GPIOs"
1221 depends on MFD_TC3589X
1223 select GPIOLIB_IRQCHIP
1225 This enables support for the GPIOs found on the TC3589X
1228 config GPIO_TIMBERDALE
1229 bool "Support for timberdale GPIO IP"
1230 depends on MFD_TIMBERDALE
1232 Add support for the GPIO IP in the timberdale FPGA.
1234 config GPIO_TPS65086
1235 tristate "TI TPS65086 GPO"
1236 depends on MFD_TPS65086
1238 This driver supports the GPO on TI TPS65086x PMICs.
1240 config GPIO_TPS65218
1241 tristate "TPS65218 GPIO"
1242 depends on MFD_TPS65218
1244 Select this option to enable GPIO driver for the TPS65218
1247 config GPIO_TPS6586X
1248 bool "TPS6586X GPIO"
1249 depends on MFD_TPS6586X
1251 Select this option to enable GPIO driver for the TPS6586X
1254 config GPIO_TPS65910
1255 bool "TPS65910 GPIO"
1256 depends on MFD_TPS65910
1258 Select this option to enable GPIO driver for the TPS65910
1261 config GPIO_TPS65912
1262 tristate "TI TPS65912 GPIO"
1263 depends on MFD_TPS65912
1265 This driver supports TPS65912 gpio chip
1267 config GPIO_TPS68470
1268 bool "TPS68470 GPIO"
1269 depends on MFD_TPS68470
1271 Select this option to enable GPIO driver for the TPS68470
1273 There are 7 GPIOs and few sensor related GPIOs supported
1274 by the TPS68470. While the 7 GPIOs can be configured as
1275 input or output as appropriate, the sensor related GPIOs
1276 are "output only" GPIOs.
1278 This driver config is bool, as the GPIO functionality
1279 of the TPS68470 must be available before dependent
1283 tristate "TQ-Systems QTMX86 GPIO"
1284 depends on MFD_TQMX86 || COMPILE_TEST
1285 select GPIOLIB_IRQCHIP
1287 This driver supports GPIO on the TQMX86 IO controller.
1290 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1291 depends on TWL4030_CORE
1293 Say yes here to access the GPIO signals of various multi-function
1294 power management chips from Texas Instruments.
1297 tristate "TWL6040 GPO"
1298 depends on TWL6040_CORE
1300 Say yes here to access the GPO signals of twl6040
1301 audio chip from Texas Instruments.
1304 tristate "Philips UCB1400 GPIO"
1305 depends on UCB1400_CORE
1307 This enables support for the Philips UCB1400 GPIO pins.
1308 The UCB1400 is an AC97 audio codec.
1310 config GPIO_WHISKEY_COVE
1311 tristate "GPIO support for Whiskey Cove PMIC"
1312 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1313 select GPIOLIB_IRQCHIP
1315 Support for GPIO pins on Whiskey Cove PMIC.
1317 Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1320 This driver can also be built as a module. If so, the module will be
1324 tristate "WM831x GPIOs"
1325 depends on MFD_WM831X
1327 Say yes here to access the GPIO signals of WM831x power management
1328 chips from Wolfson Microelectronics.
1331 tristate "WM8350 GPIOs"
1332 depends on MFD_WM8350
1334 Say yes here to access the GPIO signals of WM8350 power management
1335 chips from Wolfson Microelectronics.
1338 tristate "WM8994 GPIOs"
1339 depends on MFD_WM8994
1341 Say yes here to access the GPIO signals of WM8994 audio hub
1342 CODECs from Wolfson Microelectronics.
1346 menu "PCI GPIO expanders"
1350 tristate "AMD 8111 GPIO driver"
1351 depends on X86 || COMPILE_TEST
1353 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1355 Note, that usually system firmware/ACPI handles GPIO pins on their
1356 own and users might easily break their systems with uncarefull usage
1362 tristate "BT8XX GPIO abuser"
1363 depends on VIDEO_BT848=n
1365 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1366 as a cheap PCI GPIO card.
1368 This chip can be found on Miro, Hauppauge and STB TV-cards.
1370 The card needs to be physically altered for using it as a
1371 GPIO card. For more information on how to build a GPIO card
1372 from a BT8xx TV card, see the documentation file at
1373 Documentation/driver-api/gpio/bt8xxgpio.rst
1377 config GPIO_INTEL_MID
1378 bool "Intel MID GPIO support"
1379 depends on X86_INTEL_MID
1380 select GPIOLIB_IRQCHIP
1382 Say Y here to support Intel MID GPIO.
1384 config GPIO_MERRIFIELD
1385 tristate "Intel Merrifield GPIO support"
1386 depends on X86_INTEL_MID
1387 select GPIOLIB_IRQCHIP
1389 Say Y here to support Intel Merrifield GPIO.
1392 tristate "Mellanox BlueField SoC GPIO"
1393 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1396 Say Y here if you want GPIO support on Mellanox BlueField SoC.
1399 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1400 depends on X86 || COMPILE_TEST
1401 select GENERIC_IRQ_CHIP
1403 ML7213 is companion chip for Intel Atom E6xx series.
1404 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1405 Hub) which is for IVI(In-Vehicle Infotainment) use.
1406 This driver can access the IOH's GPIO device.
1409 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1410 depends on X86_32 || MIPS || COMPILE_TEST
1411 select GENERIC_IRQ_CHIP
1413 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1414 which is an IOH(Input/Output Hub) for x86 embedded processor.
1415 This driver can access PCH GPIO device.
1417 This driver also can be used for LAPIS Semiconductor IOH(Input/
1418 Output Hub), ML7223 and ML7831.
1419 ML7223 IOH is for MP(Media Phone) use.
1420 ML7831 IOH is for general purpose use.
1421 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1422 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1424 config GPIO_PCI_IDIO_16
1425 tristate "ACCES PCI-IDIO-16 GPIO support"
1426 select GPIOLIB_IRQCHIP
1428 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1429 generated when any of the inputs change state (low to high or high to
1430 low). Input filter control is not supported by this driver, and the
1431 input filters are deactivated by this driver.
1433 config GPIO_PCIE_IDIO_24
1434 tristate "ACCES PCIe-IDIO-24 GPIO support"
1435 select GPIOLIB_IRQCHIP
1437 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1438 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1439 when any of the inputs change state (low to high or high to low).
1440 Input filter control is not supported by this driver, and the input
1441 filters are deactivated by this driver.
1444 tristate "RDC R-321x GPIO support"
1448 Support for the RDC R321x SoC GPIOs over southbridge
1449 PCI configuration space.
1451 config GPIO_SODAVILLE
1452 bool "Intel Sodaville GPIO support"
1453 depends on X86 && OF
1455 select GENERIC_IRQ_CHIP
1457 Say Y here to support Intel Sodaville GPIO.
1461 menu "SPI GPIO expanders"
1462 depends on SPI_MASTER
1465 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1468 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1469 shift registers. This driver can be used to provide access
1470 to more gpio outputs.
1472 config GPIO_MAX3191X
1473 tristate "Maxim MAX3191x industrial serializer"
1476 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1477 MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1478 chip to make 8 digital 24V inputs available via SPI. Supports
1479 CRC checksums to guard against electromagnetic interference,
1480 as well as undervoltage and overtemperature detection.
1483 tristate "Maxim MAX7301 GPIO expander"
1486 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1489 tristate "Freescale MC33880 high-side/low-side switch"
1491 SPI driver for Freescale MC33880 high-side/low-side switch.
1492 This provides GPIO interface supporting inputs and outputs.
1495 tristate "Generic parallel-in/serial-out shift register"
1497 GPIO driver for SPI compatible parallel-in/serial-out shift
1498 registers. These are input only devices.
1501 tristate "EXAR XRA1403 16-bit GPIO expander"
1504 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1507 tristate "Turris Mox Moxtet bus GPIO expander"
1510 Say yes here if you are building for the Turris Mox router.
1511 This is the driver needed for configuring the GPIOs via the Moxtet
1512 bus. For example the Mox module with SFP cage needs this driver
1513 so that phylink can use corresponding GPIOs.
1517 menu "USB GPIO expanders"
1520 config GPIO_VIPERBOARD
1521 tristate "Viperboard GPIO a & b support"
1522 depends on MFD_VIPERBOARD
1524 Say yes here to access the GPIO signals of Nano River
1525 Technologies Viperboard. There are two GPIO chips on the
1526 board: gpioa and gpiob.
1527 See viperboard API specification and Nano
1528 River Tech's viperboard.h for detailed meaning
1529 of the module parameters.
1534 tristate "GPIO Testing Driver"
1537 This enables GPIO Testing driver, which provides a way to test GPIO
1538 subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
1539 must be selected for this test.
1540 User could use it through the script in
1541 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in