2 # GPIO infrastructure and drivers
5 config ARCH_HAVE_CUSTOM_GPIO_H
8 Selecting this config option from the architecture Kconfig allows
9 the architecture to provide a custom asm/gpio.h implementation
10 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.
34 config GPIOLIB_IRQCHIP
39 bool "Debug GPIO calls"
40 depends on DEBUG_KERNEL
42 Say Y here to add some extra checks and diagnostics to GPIO calls.
43 These checks help ensure that GPIOs have been properly initialized
44 before they are used, and that sleeping calls are not made from
45 non-sleeping contexts. They can make bitbanged serial protocols
46 slower. The diagnostics help catch the type of setup errors
47 that are most common when setting up new platforms or boards.
50 bool "/sys/class/gpio/... (sysfs interface)"
53 Say Y here to add a sysfs interface for GPIOs.
55 This is mostly useful to work around omissions in a system's
56 kernel support. Those are common in custom and semicustom
57 hardware assembled using standard kernels with a minimum of
58 custom patches. In those cases, userspace code may import
59 a given GPIO from the kernel, if no kernel driver requested it.
61 Kernel drivers may also request that a particular GPIO be
62 exported to userspace; this can be useful when debugging.
65 depends on HAS_IOMEM # Only for IOMEM drivers
68 # put drivers in the right section, in alphabetical order
70 # This symbol is selected by both I2C and SPI expanders
74 menu "Memory mapped GPIO drivers"
78 tristate "GPIO driver for 74xx-ICs with MMIO access"
82 Say yes here to support GPIO functionality for 74xx-compatible ICs
83 with MMIO access. Compatible models include:
84 1 bit: 741G125 (Input), 741G74 (Output)
85 2 bits: 742G125 (Input), 7474 (Output)
86 4 bits: 74125 (Input), 74175 (Output)
87 6 bits: 74365 (Input), 74174 (Output)
88 8 bits: 74244 (Input), 74273 (Output)
89 16 bits: 741624 (Input), 7416374 (Output)
92 tristate "Altera GPIO"
94 select GPIOLIB_IRQCHIP
96 Say Y or M here to build support for the Altera PIO device.
98 If driver is built as a module it will be called gpio-altera.
101 tristate "AMD Promontory GPIO support"
105 driver for GPIO functionality on Promontory IOHub
106 Require ACPI ASL code to enumerate as a platform device.
109 tristate "Aspeed GPIO support"
110 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
111 select GPIOLIB_IRQCHIP
113 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
116 tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
118 depends on ATH79 || COMPILE_TEST
120 select GPIOLIB_IRQCHIP
122 Select this option to enable GPIO driver for
123 Atheros AR71XX/AR724X/AR913X SoC devices.
126 tristate "X-Powers AXP209 PMIC GPIO Support"
127 depends on MFD_AXP20X
129 Say yes to enable GPIO support for the AXP209 PMIC
132 bool "Broadcom Kona GPIO"
133 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
135 Turn on GPIO support for Broadcom "Kona" chips.
138 tristate "BRCMSTB GPIO support"
139 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
140 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
142 select GPIOLIB_IRQCHIP
144 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
147 tristate "CLPS711X GPIO support"
148 depends on ARCH_CLPS711X || COMPILE_TEST
151 Say yes here to support GPIO on CLPS711X SoCs.
154 bool "TI Davinci/Keystone GPIO support"
155 default y if ARCH_DAVINCI
156 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
158 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
161 tristate "Synopsys DesignWare APB GPIO driver"
163 select GENERIC_IRQ_CHIP
165 Say Y or M here to build support for the Synopsys DesignWare APB
169 tristate "Emma Mobile GPIO"
170 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
172 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
176 depends on ARCH_EP93XX
180 bool "Axis ETRAX FS General I/O"
181 depends on CRIS || COMPILE_TEST
184 select GPIOLIB_IRQCHIP
186 Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.
189 tristate "Support for GPIO pins on XR17V352/354/358"
190 depends on SERIAL_8250_EXAR
192 Selecting this option will enable handling of GPIO pins present
193 on Exar XR17V352/354/358 chips.
196 bool "GE FPGA based GPIO"
200 Support for common GPIO functionality provided on some GE Single Board
203 This driver provides basic support (configure as input or output, read
204 and write pin state) for GPIO implemented in a number of GE single
207 config GPIO_FTGPIO010
208 bool "Faraday FTGPIO010 GPIO"
211 select GPIOLIB_IRQCHIP
212 default (ARCH_GEMINI || ARCH_MOXART)
214 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
215 Cortina systems Gemini platforms, Moxa ART and others.
217 config GPIO_GENERIC_PLATFORM
218 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
221 Say yes here to support basic platform_device memory-mapped GPIO controllers.
224 tristate "Aeroflex Gaisler GRGPIO support"
229 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
230 VHDL IP core library.
233 tristate "Intel ICH GPIO"
234 depends on PCI && X86
238 Say yes here to support the GPIO functionality of a number of Intel
239 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
240 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
241 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
246 tristate "Ingenic JZ47xx SoCs GPIO support"
248 depends on MACH_INGENIC || COMPILE_TEST
249 select GPIOLIB_IRQCHIP
251 Say yes here to support the GPIO functionality present on the
252 JZ4740 and JZ4780 SoCs from Ingenic.
257 tristate "Intel IOP GPIO"
258 depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST
261 Say yes here to support the GPIO functionality of a number of Intel
267 bool "Loongson-2/3 GPIO support"
268 depends on CPU_LOONGSON2 || CPU_LOONGSON3
270 driver for GPIO functionality on Loongson-2F/3A/3B processors.
273 tristate "NXP LPC18XX/43XX GPIO support"
274 default y if ARCH_LPC18XX
275 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
277 Select this option to enable GPIO driver for
278 NXP LPC18XX/43XX devices.
280 config GPIO_LYNXPOINT
281 tristate "Intel Lynxpoint GPIO support"
282 depends on ACPI && X86
283 select GPIOLIB_IRQCHIP
285 driver for GPIO functionality on Intel Lynxpoint PCH chipset
286 Requires ACPI device enumeration code to set up a platform device.
289 bool "GPIO support for Fujitsu MB86S7x Platforms"
290 depends on ARCH_MB86S7X || COMPILE_TEST
292 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
295 tristate "MEN 16Z127 GPIO support"
299 Say yes here to support the MEN 16Z127 GPIO Controller
301 config GPIO_MM_LANTIQ
302 bool "Lantiq Memory mapped GPIOs"
303 depends on LANTIQ && SOC_XWAY
305 This enables support for memory mapped GPIOs on the External Bus Unit
306 (EBU) found on Lantiq SoCs. The gpios are output only as they are
307 created by attaching a 16bit latch to the bus.
310 tristate "GPIO Testing Driver"
311 depends on GPIOLIB && SYSFS
313 select GPIOLIB_IRQCHIP
316 This enables GPIO Testing driver, which provides a way to test GPIO
317 subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
318 must be selected for this test.
319 User could use it through the script in
320 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
325 depends on PPC_MPC52xx
328 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
329 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
330 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
335 Say Y here if you're going to use hardware that connects to the
336 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
340 depends on PLAT_ORION || ARCH_MVEBU
342 select GENERIC_IRQ_CHIP
349 select GENERIC_IRQ_CHIP
355 select GENERIC_IRQ_CHIP
358 tristate "Cavium OCTEON GPIO"
359 depends on GPIOLIB && CAVIUM_OCTEON_SOC
362 Say yes here to support the on-chip GPIO lines on the OCTEON
366 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
367 default y if ARCH_OMAP
369 select GENERIC_IRQ_CHIP
370 select GPIOLIB_IRQCHIP
372 Say yes here to enable GPIO support for TI OMAP SoCs.
375 bool "PrimeCell PL061 GPIO support"
378 select GPIOLIB_IRQCHIP
380 Say yes here to support the PrimeCell PL061 GPIO device
383 bool "PXA GPIO support"
384 depends on ARCH_PXA || ARCH_MMP
386 Say yes here to support the PXA GPIO device
389 tristate "Renesas R-Car GPIO"
390 depends on ARCH_RENESAS || COMPILE_TEST
391 select GPIOLIB_IRQCHIP
393 Say yes here to support GPIO on Renesas R-Car SoCs.
398 A 32-bit single register GPIO fixed in/out implementation. This
399 can be used to represent any register as a set of GPIO signals.
401 config GPIO_SPEAR_SPICS
402 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
403 depends on PLAT_SPEAR
404 select GENERIC_IRQ_CHIP
406 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
409 bool "STA2x11/ConneXt GPIO support"
410 depends on MFD_STA2X11
411 select GENERIC_IRQ_CHIP
413 Say yes here to support the STA2x11/ConneXt GPIO device.
414 The GPIO module has 128 GPIO pins with alternate functions.
417 bool "XWAY STP GPIOs"
420 This enables support for the Serial To Parallel (STP) unit found on
421 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
422 that can be up to 24 bit. This peripheral is aimed at driving leds.
423 Some of the gpios/leds can be auto updated by the soc with dsl and
427 tristate "GPIO based on SYSCON"
428 depends on MFD_SYSCON && OF
430 Say yes here to support GPIO functionality though SYSCON driver.
434 select GENERIC_IRQ_CHIP
438 bool "NVIDIA Tegra GPIO support"
440 depends on ARCH_TEGRA || COMPILE_TEST
443 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
446 tristate "TS-4800 DIO blocks and compatibles"
448 depends on SOC_IMX51 || COMPILE_TEST
451 This driver support TS-4800 FPGA GPIO controllers.
454 tristate "Cavium ThunderX/OCTEON-TX GPIO"
455 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
456 depends on PCI_MSI && IRQ_DOMAIN_HIERARCHY
457 select IRQ_FASTEOI_HIERARCHY_HANDLERS
459 Say yes here to support the on-chip GPIO lines on the ThunderX
460 and OCTEON-TX families of SoCs.
463 bool "Toumaz Xenif TZ1090 GPIO support"
464 depends on SOC_TZ1090
465 select GENERIC_IRQ_CHIP
468 Say yes here to support Toumaz Xenif TZ1090 GPIOs.
470 config GPIO_TZ1090_PDC
471 bool "Toumaz Xenif TZ1090 PDC GPIO support"
472 depends on SOC_TZ1090
475 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
479 depends on ARCH_MXC && SOC_VF610
480 select GPIOLIB_IRQCHIP
482 Say yes here to support Vybrid vf610 GPIOs.
485 tristate "NEC VR4100 series General-purpose I/O Uint support"
486 depends on CPU_VR41XX
488 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
491 tristate "VIA VX855/VX875 GPIO"
492 depends on (X86 || COMPILE_TEST) && PCI
496 Support access to the VX855/VX875 GPIO lines through the gpio library.
498 This driver provides common support for accessing the device,
499 additional drivers must be enabled in order to use the
500 functionality of the device.
503 bool "APM X-Gene GPIO controller support"
504 depends on ARM64 && OF_GPIO
506 This driver is to support the GPIO block within the APM X-Gene SoC
507 platform's generic flash controller. The GPIO pins are muxed with
508 the generic flash controller's address and data pins. Say yes
509 here to enable the GFC GPIO functionality.
512 tristate "APM X-Gene GPIO standby controller support"
513 depends on ARCH_XGENE && OF_GPIO
515 select GPIOLIB_IRQCHIP
516 select IRQ_DOMAIN_HIERARCHY
518 This driver supports the GPIO block within the APM X-Gene
519 Standby Domain. Say yes here to enable the GPIO functionality.
522 tristate "Xilinx GPIO support"
525 Say yes here to support the Xilinx FPGA GPIO device
528 tristate "Netlogic XLP GPIO support"
529 depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
530 select GPIOLIB_IRQCHIP
532 This driver provides support for GPIO interface on Netlogic XLP MIPS64
533 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
534 XLP9XX and XLP5XX. The same GPIO controller block is also present in
535 Cavium's ThunderX2 CN99XX SoCs.
540 bool "Xtensa GPIO32 support"
542 depends on HAVE_XTENSA_GPIO32
545 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
546 and EXPSTATE (output) ports
549 bool "LSI ZEVIO SoC memory mapped GPIOs"
550 depends on ARM && OF_GPIO
552 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
555 tristate "Xilinx Zynq GPIO support"
556 depends on ARCH_ZYNQ || ARCH_ZYNQMP
557 select GPIOLIB_IRQCHIP
559 Say yes here to support Xilinx Zynq GPIO controller.
562 bool "ZTE ZX GPIO support"
563 depends on ARCH_ZX || COMPILE_TEST
564 select GPIOLIB_IRQCHIP
566 Say yes here to support the GPIO device on ZTE ZX SoCs.
568 config GPIO_LOONGSON1
569 tristate "Loongson1 GPIO support"
570 depends on MACH_LOONGSON32
573 Say Y or M here to support GPIO on Loongson1 SoCs.
577 menu "Port-mapped I/O GPIO drivers"
578 depends on X86 # Unconditional I/O space access
580 config GPIO_104_DIO_48E
581 tristate "ACCES 104-DIO-48E GPIO support"
582 depends on PC104 && ISA_BUS_API
583 select GPIOLIB_IRQCHIP
585 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
586 104-DIO-24E). The base port addresses for the devices may be
587 configured via the base module parameter. The interrupt line numbers
588 for the devices may be configured via the irq module parameter.
590 config GPIO_104_IDIO_16
591 tristate "ACCES 104-IDIO-16 GPIO support"
592 depends on PC104 && ISA_BUS_API
593 select GPIOLIB_IRQCHIP
595 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
596 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
597 base port addresses for the devices may be configured via the base
598 module parameter. The interrupt line numbers for the devices may be
599 configured via the irq module parameter.
601 config GPIO_104_IDI_48
602 tristate "ACCES 104-IDI-48 GPIO support"
603 depends on PC104 && ISA_BUS_API
604 select GPIOLIB_IRQCHIP
606 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
607 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
608 the devices may be configured via the base module parameter. The
609 interrupt line numbers for the devices may be configured via the irq
613 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
615 This option enables support for GPIOs found on Fintek Super-I/O
616 chips F71869, F71869A, F71882FG, F71889F and F81866.
618 To compile this driver as a module, choose M here: the module will
619 be called f7188x-gpio.
622 tristate "Diamond Systems GPIO-MM GPIO support"
623 depends on PC104 && ISA_BUS_API
625 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
627 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
628 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
629 support for these 48 channels of digital I/O.
631 The base port addresses for the devices may be configured via the base
632 array module parameter.
635 tristate "IT87xx GPIO support"
637 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
639 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
640 supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
642 To compile this driver as a module, choose M here: the module will
646 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
647 depends on (X86 || COMPILE_TEST) && PCI
651 Say yes here to support GPIO interface on Intel Poulsbo SCH,
652 Intel Tunnel Creek processor, Intel Centerton processor or
653 Intel Quark X1000 SoC.
655 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
656 powered by the core power rail and are turned off during sleep
657 modes (S3 and higher). The remaining four GPIOs are powered by
658 the Intel SCH suspend power supply. These GPIOs remain
659 active during S3. The suspend powered GPIOs can be used to wake the
660 system from the Suspend-to-RAM state.
662 The Intel Tunnel Creek processor has 5 GPIOs powered by the
663 core power rail and 9 from suspend power supply.
665 The Intel Centerton processor has a total of 30 GPIO pins.
666 Twenty-one are powered by the core power rail and 9 from the
667 suspend power supply.
669 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
670 power well and 6 from the suspend power well.
673 tristate "SMSC SCH311x SuperI/O GPIO"
675 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
676 SCH3116 "Super I/O" chipsets.
678 To compile this driver as a module, choose M here: the module will
679 be called gpio-sch311x.
682 tristate "TS-5500 DIO blocks and compatibles"
683 depends on TS5500 || COMPILE_TEST
685 This driver supports Digital I/O exposed by pin blocks found on some
686 Technologic Systems platforms. It includes, but is not limited to, 3
687 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
691 tristate "WinSystems WS16C48 GPIO support"
692 depends on ISA_BUS_API
693 select GPIOLIB_IRQCHIP
695 Enables GPIO support for the WinSystems WS16C48. The base port
696 addresses for the devices may be configured via the base module
697 parameter. The interrupt line numbers for the devices may be
698 configured via the irq module parameter.
702 menu "I2C GPIO expanders"
706 tristate "ADP5588 I2C GPIO expander"
708 This option enables support for 18 GPIOs found
709 on Analog Devices ADP5588 GPIO Expanders.
711 config GPIO_ADP5588_IRQ
712 bool "Interrupt controller support for ADP5588"
713 depends on GPIO_ADP5588=y
715 Say yes here to enable the adp5588 to be used as an interrupt
716 controller. It requires the driver to be built in the kernel.
719 tristate "Avionic Design N-bit GPIO expander"
721 select GPIOLIB_IRQCHIP
723 This option enables support for N GPIOs found on Avionic Design
724 I2C GPIO expanders. The register space will be extended by powers
725 of two, so the controller will need to accommodate for that. For
726 example: if a controller provides 48 pins, 6 registers will be
727 enough to represent all pins, but the driver will assume a
728 register layout for 64 pins (8 registers).
731 tristate "Maxim MAX7300 GPIO expander"
734 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
737 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
739 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
740 Port Expanders. Each IO port on these chips has a fixed role of
741 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
742 Input and Output (designed by 'P'). The combinations are listed
745 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
746 max7322 (4I4O), max7323 (4P4O)
748 16 bits: max7324 (8I8O), max7325 (8P8O),
749 max7326 (4I12O), max7327 (4P12O)
751 Board setup code must specify the model to use, and the start
752 number for these GPIOs.
754 config GPIO_MAX732X_IRQ
755 bool "Interrupt controller support for MAX732x"
756 depends on GPIO_MAX732X=y
757 select GPIOLIB_IRQCHIP
759 Say yes here to enable the max732x to be used as an interrupt
760 controller. It requires the driver to be built in the kernel.
762 config GPIO_MC9S08DZ60
763 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
764 depends on I2C=y && MACH_MX35_3DS
766 Select this to enable the MC9S08DZ60 GPIO driver
769 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
771 Say yes here to provide access to several register-oriented
772 SMBus I/O expanders, made mostly by NXP or TI. Compatible
775 4 bits: pca9536, pca9537
777 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
778 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
780 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
785 40 bits: pca9505, pca9698
787 config GPIO_PCA953X_IRQ
788 bool "Interrupt controller support for PCA953x"
789 depends on GPIO_PCA953X=y
790 select GPIOLIB_IRQCHIP
792 Say yes here to enable the pca953x to be used as an interrupt
793 controller. It requires the driver to be built in the kernel.
796 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
797 select GPIOLIB_IRQCHIP
800 Say yes here to provide access to most "quasi-bidirectional" I2C
801 GPIO expanders used for additional digital outputs or inputs.
802 Most of these parts are from NXP, though TI is a second source for
803 some of them. Compatible models include:
805 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
806 pca9670, pca9672, pca9674, pca9674a,
809 16 bits: pcf8575, pcf8575c, pca8575,
810 pca9671, pca9673, pca9675
812 Your board setup code will need to declare the expanders in
813 use, and assign numbers to the GPIOs they expose. Those GPIOs
814 can then be used from drivers and other kernel code, just like
815 other GPIOs, but only accessible from task contexts.
817 This driver provides an in-kernel interface to those GPIOs using
818 platform-neutral GPIO calls.
821 bool "Semtech SX150x I2C GPIO expander (deprecated)"
822 depends on PINCTRL && I2C=y
823 select PINCTRL_SX150X
826 Say yes here to provide support for Semtech SX150x-series I2C
827 GPIO expanders. The GPIO driver was replaced by a Pinctrl version.
830 tristate "TPIC2810 8-Bit I2C GPO expander"
832 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
834 To compile this driver as a module, choose M here: the module will
835 be called gpio-tpic2810.
838 tristate "Technologic Systems FPGA I2C GPIO"
839 depends on SOC_IMX6 || COMPILE_TEST
842 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
843 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
847 menu "MFD GPIO expanders"
850 tristate "GPIO Support for ADP5520 PMIC"
851 depends on PMIC_ADP5520
853 This option enables support for on-chip GPIO found
854 on Analog Devices ADP5520 PMICs.
856 config GPIO_ALTERA_A10SR
857 tristate "Altera Arria10 System Resource GPIO"
858 depends on MFD_ALTERA_A10SR
860 Driver for Arria10 Development Kit GPIO expansion which
861 includes reads of pushbuttons and DIP switches as well
865 tristate "Wolfson Microelectronics Arizona class devices"
866 depends on MFD_ARIZONA
868 Support for GPIOs on Wolfson Arizona class devices.
870 config GPIO_BD9571MWV
871 tristate "ROHM BD9571 GPIO support"
872 depends on MFD_BD9571MWV
874 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
875 available on the ROHM PMIC in total, both of which can also
878 This driver can also be built as a module. If so, the module
879 will be called gpio-bd9571mwv.
881 config GPIO_CRYSTAL_COVE
882 tristate "GPIO support for Crystal Cove PMIC"
883 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
884 select GPIOLIB_IRQCHIP
886 Support for GPIO pins on Crystal Cove PMIC.
888 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
891 This driver can also be built as a module. If so, the module will be
892 called gpio-crystalcove.
895 tristate "AMD CS5535/CS5536 GPIO support"
896 depends on X86 || MIPS || COMPILE_TEST
897 depends on MFD_CS5535
899 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
900 can be used for quite a number of things. The CS5535/6 is found on
901 AMD Geode and Lemote Yeeloong devices.
906 tristate "Dialog DA9052 GPIO"
907 depends on PMIC_DA9052
909 Say yes here to enable the GPIO driver for the DA9052 chip.
912 tristate "Dialog Semiconductor DA9055 GPIO"
913 depends on MFD_DA9055
915 Say yes here to enable the GPIO driver for the DA9055 chip.
917 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
918 be controller by this driver.
920 If driver is built as a module it will be called gpio-da9055.
923 tristate "Diolan DLN2 GPIO support"
925 select GPIOLIB_IRQCHIP
928 Select this option to enable GPIO driver for the Diolan DLN2
931 This driver can also be built as a module. If so, the module
932 will be called gpio-dln2.
935 bool "HTC EGPIO support"
936 depends on GPIOLIB && ARM
938 This driver supports the CPLD egpio chip present on
939 several HTC phones. It provides basic support for input
940 pins, output pins, and irqs.
943 tristate "Janz VMOD-TTL Digital IO Module"
944 depends on MFD_JANZ_CMODIO
946 This enables support for the Janz VMOD-TTL Digital IO module.
947 This driver provides support for driving the pins in output
948 mode only. Input mode is not supported.
951 tristate "Kontron ETX / COMexpress GPIO"
952 depends on MFD_KEMPLD
954 This enables support for the PLD GPIO interface on some Kontron ETX
955 and COMexpress (ETXexpress) modules.
957 This driver can also be built as a module. If so, the module will be
961 tristate "TI/National Semiconductor LP3943 GPIO expander"
962 depends on MFD_LP3943
964 GPIO driver for LP3943 MFD.
965 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
966 Open drain outputs are required for this usage.
969 tristate "TI LP873X GPO"
970 depends on MFD_TI_LP873X
972 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
975 This driver can also be built as a module. If so, the module will be
979 tristate "TI LP87565 GPIO"
980 depends on MFD_TI_LP87565
982 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
985 This driver can also be built as a module. If so, the module will be
989 tristate "GPIO support for PMIC MAX77620 and MAX20024"
990 depends on MFD_MAX77620
992 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
993 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
994 driver also provides interrupt support for each of the gpios.
995 Say yes here to enable the max77620 to be used as gpio controller.
998 bool "Intel MSIC mixed signal gpio support"
999 depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
1001 Enable support for GPIO on intel MSIC controllers found in
1005 bool "TI PALMAS series PMICs GPIO"
1006 depends on MFD_PALMAS
1008 Select this option to enable GPIO driver for the TI PALMAS
1012 bool "RICOH RC5T583 GPIO"
1013 depends on MFD_RC5T583
1015 Select this option to enable GPIO driver for the Ricoh RC5T583
1017 This driver provides the support for driving/reading the gpio pins
1018 of RC5T583 device through standard gpio library.
1022 depends on MFD_STMPE
1024 select GPIOLIB_IRQCHIP
1026 This enables support for the GPIOs found on the STMPE I/O
1030 bool "TC3589X GPIOs"
1031 depends on MFD_TC3589X
1033 select GPIOLIB_IRQCHIP
1035 This enables support for the GPIOs found on the TC3589X
1038 config GPIO_TIMBERDALE
1039 bool "Support for timberdale GPIO IP"
1040 depends on MFD_TIMBERDALE
1042 Add support for the GPIO IP in the timberdale FPGA.
1044 config GPIO_TPS65086
1045 tristate "TI TPS65086 GPO"
1046 depends on MFD_TPS65086
1048 This driver supports the GPO on TI TPS65086x PMICs.
1050 config GPIO_TPS65218
1051 tristate "TPS65218 GPIO"
1052 depends on MFD_TPS65218
1054 Select this option to enable GPIO driver for the TPS65218
1057 config GPIO_TPS6586X
1058 bool "TPS6586X GPIO"
1059 depends on MFD_TPS6586X
1061 Select this option to enable GPIO driver for the TPS6586X
1064 config GPIO_TPS65910
1065 bool "TPS65910 GPIO"
1066 depends on MFD_TPS65910
1068 Select this option to enable GPIO driver for the TPS65910
1071 config GPIO_TPS65912
1072 tristate "TI TPS65912 GPIO"
1073 depends on MFD_TPS65912
1075 This driver supports TPS65912 gpio chip
1077 config GPIO_TPS68470
1078 bool "TPS68470 GPIO"
1079 depends on MFD_TPS68470
1081 Select this option to enable GPIO driver for the TPS68470
1083 There are 7 GPIOs and few sensor related GPIOs supported
1084 by the TPS68470. While the 7 GPIOs can be configured as
1085 input or output as appropriate, the sensor related GPIOs
1086 are "output only" GPIOs.
1088 This driver config is bool, as the GPIO functionality
1089 of the TPS68470 must be available before dependent
1093 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1094 depends on TWL4030_CORE
1096 Say yes here to access the GPIO signals of various multi-function
1097 power management chips from Texas Instruments.
1100 tristate "TWL6040 GPO"
1101 depends on TWL6040_CORE
1103 Say yes here to access the GPO signals of twl6040
1104 audio chip from Texas Instruments.
1107 tristate "Philips UCB1400 GPIO"
1108 depends on UCB1400_CORE
1110 This enables support for the Philips UCB1400 GPIO pins.
1111 The UCB1400 is an AC97 audio codec.
1113 config GPIO_WHISKEY_COVE
1114 tristate "GPIO support for Whiskey Cove PMIC"
1115 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1116 select GPIOLIB_IRQCHIP
1118 Support for GPIO pins on Whiskey Cove PMIC.
1120 Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1123 This driver can also be built as a module. If so, the module will be
1127 tristate "WM831x GPIOs"
1128 depends on MFD_WM831X
1130 Say yes here to access the GPIO signals of WM831x power management
1131 chips from Wolfson Microelectronics.
1134 tristate "WM8350 GPIOs"
1135 depends on MFD_WM8350
1137 Say yes here to access the GPIO signals of WM8350 power management
1138 chips from Wolfson Microelectronics.
1141 tristate "WM8994 GPIOs"
1142 depends on MFD_WM8994
1144 Say yes here to access the GPIO signals of WM8994 audio hub
1145 CODECs from Wolfson Microelectronics.
1149 menu "PCI GPIO expanders"
1153 tristate "AMD 8111 GPIO driver"
1154 depends on X86 || COMPILE_TEST
1156 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1158 Note, that usually system firmware/ACPI handles GPIO pins on their
1159 own and users might easily break their systems with uncarefull usage
1165 tristate "BT8XX GPIO abuser"
1166 depends on VIDEO_BT848=n
1168 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1169 as a cheap PCI GPIO card.
1171 This chip can be found on Miro, Hauppauge and STB TV-cards.
1173 The card needs to be physically altered for using it as a
1174 GPIO card. For more information on how to build a GPIO card
1175 from a BT8xx TV card, see the documentation file at
1176 Documentation/bt8xxgpio.txt
1180 config GPIO_INTEL_MID
1181 bool "Intel MID GPIO support"
1182 depends on X86_INTEL_MID
1183 select GPIOLIB_IRQCHIP
1185 Say Y here to support Intel MID GPIO.
1187 config GPIO_MERRIFIELD
1188 tristate "Intel Merrifield GPIO support"
1189 depends on X86_INTEL_MID
1190 select GPIOLIB_IRQCHIP
1192 Say Y here to support Intel Merrifield GPIO.
1195 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1196 depends on X86 || COMPILE_TEST
1197 select GENERIC_IRQ_CHIP
1199 ML7213 is companion chip for Intel Atom E6xx series.
1200 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1201 Hub) which is for IVI(In-Vehicle Infotainment) use.
1202 This driver can access the IOH's GPIO device.
1205 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1206 depends on X86_32 || MIPS || COMPILE_TEST
1207 select GENERIC_IRQ_CHIP
1209 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1210 which is an IOH(Input/Output Hub) for x86 embedded processor.
1211 This driver can access PCH GPIO device.
1213 This driver also can be used for LAPIS Semiconductor IOH(Input/
1214 Output Hub), ML7223 and ML7831.
1215 ML7223 IOH is for MP(Media Phone) use.
1216 ML7831 IOH is for general purpose use.
1217 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1218 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1220 config GPIO_PCI_IDIO_16
1221 tristate "ACCES PCI-IDIO-16 GPIO support"
1222 select GPIOLIB_IRQCHIP
1224 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1225 generated when any of the inputs change state (low to high or high to
1226 low). Input filter control is not supported by this driver, and the
1227 input filters are deactivated by this driver.
1230 tristate "RDC R-321x GPIO support"
1234 Support for the RDC R321x SoC GPIOs over southbridge
1235 PCI configuration space.
1237 config GPIO_SODAVILLE
1238 bool "Intel Sodaville GPIO support"
1239 depends on X86 && OF
1241 select GENERIC_IRQ_CHIP
1243 Say Y here to support Intel Sodaville GPIO.
1247 menu "SPI GPIO expanders"
1248 depends on SPI_MASTER
1251 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1254 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1255 shift registers. This driver can be used to provide access
1256 to more gpio outputs.
1259 tristate "Maxim MAX7301 GPIO expander"
1262 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1265 tristate "Freescale MC33880 high-side/low-side switch"
1267 SPI driver for Freescale MC33880 high-side/low-side switch.
1268 This provides GPIO interface supporting inputs and outputs.
1271 tristate "Generic parallel-in/serial-out shift register"
1273 GPIO driver for SPI compatible parallel-in/serial-out shift
1274 registers. These are input only devices.
1277 tristate "EXAR XRA1403 16-bit GPIO expander"
1280 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1284 menu "USB GPIO expanders"
1287 config GPIO_VIPERBOARD
1288 tristate "Viperboard GPIO a & b support"
1289 depends on MFD_VIPERBOARD
1291 Say yes here to access the GPIO signals of Nano River
1292 Technologies Viperboard. There are two GPIO chips on the
1293 board: gpioa and gpiob.
1294 See viperboard API specification and Nano
1295 River Tech's viperboard.h for detailed meaning
1296 of the module parameters.