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 bool "Toumaz Xenif TZ1090 GPIO support"
455 depends on SOC_TZ1090
456 select GENERIC_IRQ_CHIP
459 Say yes here to support Toumaz Xenif TZ1090 GPIOs.
461 config GPIO_TZ1090_PDC
462 bool "Toumaz Xenif TZ1090 PDC GPIO support"
463 depends on SOC_TZ1090
466 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
470 depends on ARCH_MXC && SOC_VF610
471 select GPIOLIB_IRQCHIP
473 Say yes here to support Vybrid vf610 GPIOs.
476 tristate "NEC VR4100 series General-purpose I/O Uint support"
477 depends on CPU_VR41XX
479 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
482 tristate "VIA VX855/VX875 GPIO"
483 depends on (X86 || COMPILE_TEST) && PCI
487 Support access to the VX855/VX875 GPIO lines through the gpio library.
489 This driver provides common support for accessing the device,
490 additional drivers must be enabled in order to use the
491 functionality of the device.
494 bool "APM X-Gene GPIO controller support"
495 depends on ARM64 && OF_GPIO
497 This driver is to support the GPIO block within the APM X-Gene SoC
498 platform's generic flash controller. The GPIO pins are muxed with
499 the generic flash controller's address and data pins. Say yes
500 here to enable the GFC GPIO functionality.
503 tristate "APM X-Gene GPIO standby controller support"
504 depends on ARCH_XGENE && OF_GPIO
506 select GPIOLIB_IRQCHIP
508 This driver supports the GPIO block within the APM X-Gene
509 Standby Domain. Say yes here to enable the GPIO functionality.
512 tristate "Xilinx GPIO support"
515 Say yes here to support the Xilinx FPGA GPIO device
518 tristate "Netlogic XLP GPIO support"
519 depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
520 select GPIOLIB_IRQCHIP
522 This driver provides support for GPIO interface on Netlogic XLP MIPS64
523 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
524 XLP9XX and XLP5XX. The same GPIO controller block is also present in
525 Cavium's ThunderX2 CN99XX SoCs.
530 bool "Xtensa GPIO32 support"
532 depends on HAVE_XTENSA_GPIO32
535 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
536 and EXPSTATE (output) ports
539 bool "LSI ZEVIO SoC memory mapped GPIOs"
540 depends on ARM && OF_GPIO
542 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
545 tristate "Xilinx Zynq GPIO support"
546 depends on ARCH_ZYNQ || ARCH_ZYNQMP
547 select GPIOLIB_IRQCHIP
549 Say yes here to support Xilinx Zynq GPIO controller.
552 bool "ZTE ZX GPIO support"
553 depends on ARCH_ZX || COMPILE_TEST
554 select GPIOLIB_IRQCHIP
556 Say yes here to support the GPIO device on ZTE ZX SoCs.
558 config GPIO_LOONGSON1
559 tristate "Loongson1 GPIO support"
560 depends on MACH_LOONGSON32
563 Say Y or M here to support GPIO on Loongson1 SoCs.
567 menu "Port-mapped I/O GPIO drivers"
568 depends on X86 # Unconditional I/O space access
570 config GPIO_104_DIO_48E
571 tristate "ACCES 104-DIO-48E GPIO support"
572 depends on PC104 && ISA_BUS_API
573 select GPIOLIB_IRQCHIP
575 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
576 104-DIO-24E). The base port addresses for the devices may be
577 configured via the base module parameter. The interrupt line numbers
578 for the devices may be configured via the irq module parameter.
580 config GPIO_104_IDIO_16
581 tristate "ACCES 104-IDIO-16 GPIO support"
582 depends on PC104 && ISA_BUS_API
583 select GPIOLIB_IRQCHIP
585 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
586 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
587 base port addresses for the devices may be configured via the base
588 module parameter. The interrupt line numbers for the devices may be
589 configured via the irq module parameter.
591 config GPIO_104_IDI_48
592 tristate "ACCES 104-IDI-48 GPIO support"
593 depends on PC104 && ISA_BUS_API
594 select GPIOLIB_IRQCHIP
596 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
597 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
598 the devices may be configured via the base module parameter. The
599 interrupt line numbers for the devices may be configured via the irq
603 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
605 This option enables support for GPIOs found on Fintek Super-I/O
606 chips F71869, F71869A, F71882FG, F71889F and F81866.
608 To compile this driver as a module, choose M here: the module will
609 be called f7188x-gpio.
612 tristate "Diamond Systems GPIO-MM GPIO support"
613 depends on PC104 && ISA_BUS_API
615 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
617 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
618 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
619 support for these 48 channels of digital I/O.
621 The base port addresses for the devices may be configured via the base
622 array module parameter.
625 tristate "IT87xx GPIO support"
627 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
629 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
630 supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
632 To compile this driver as a module, choose M here: the module will
636 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
637 depends on (X86 || COMPILE_TEST) && PCI
641 Say yes here to support GPIO interface on Intel Poulsbo SCH,
642 Intel Tunnel Creek processor, Intel Centerton processor or
643 Intel Quark X1000 SoC.
645 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
646 powered by the core power rail and are turned off during sleep
647 modes (S3 and higher). The remaining four GPIOs are powered by
648 the Intel SCH suspend power supply. These GPIOs remain
649 active during S3. The suspend powered GPIOs can be used to wake the
650 system from the Suspend-to-RAM state.
652 The Intel Tunnel Creek processor has 5 GPIOs powered by the
653 core power rail and 9 from suspend power supply.
655 The Intel Centerton processor has a total of 30 GPIO pins.
656 Twenty-one are powered by the core power rail and 9 from the
657 suspend power supply.
659 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
660 power well and 6 from the suspend power well.
663 tristate "SMSC SCH311x SuperI/O GPIO"
665 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
666 SCH3116 "Super I/O" chipsets.
668 To compile this driver as a module, choose M here: the module will
669 be called gpio-sch311x.
672 tristate "TS-5500 DIO blocks and compatibles"
673 depends on TS5500 || COMPILE_TEST
675 This driver supports Digital I/O exposed by pin blocks found on some
676 Technologic Systems platforms. It includes, but is not limited to, 3
677 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
681 tristate "WinSystems WS16C48 GPIO support"
682 depends on ISA_BUS_API
683 select GPIOLIB_IRQCHIP
685 Enables GPIO support for the WinSystems WS16C48. The base port
686 addresses for the devices may be configured via the base module
687 parameter. The interrupt line numbers for the devices may be
688 configured via the irq module parameter.
692 menu "I2C GPIO expanders"
696 tristate "ADP5588 I2C GPIO expander"
698 This option enables support for 18 GPIOs found
699 on Analog Devices ADP5588 GPIO Expanders.
701 config GPIO_ADP5588_IRQ
702 bool "Interrupt controller support for ADP5588"
703 depends on GPIO_ADP5588=y
705 Say yes here to enable the adp5588 to be used as an interrupt
706 controller. It requires the driver to be built in the kernel.
709 tristate "Avionic Design N-bit GPIO expander"
711 select GPIOLIB_IRQCHIP
713 This option enables support for N GPIOs found on Avionic Design
714 I2C GPIO expanders. The register space will be extended by powers
715 of two, so the controller will need to accommodate for that. For
716 example: if a controller provides 48 pins, 6 registers will be
717 enough to represent all pins, but the driver will assume a
718 register layout for 64 pins (8 registers).
721 tristate "Maxim MAX7300 GPIO expander"
724 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
727 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
729 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
730 Port Expanders. Each IO port on these chips has a fixed role of
731 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
732 Input and Output (designed by 'P'). The combinations are listed
735 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
736 max7322 (4I4O), max7323 (4P4O)
738 16 bits: max7324 (8I8O), max7325 (8P8O),
739 max7326 (4I12O), max7327 (4P12O)
741 Board setup code must specify the model to use, and the start
742 number for these GPIOs.
744 config GPIO_MAX732X_IRQ
745 bool "Interrupt controller support for MAX732x"
746 depends on GPIO_MAX732X=y
747 select GPIOLIB_IRQCHIP
749 Say yes here to enable the max732x to be used as an interrupt
750 controller. It requires the driver to be built in the kernel.
752 config GPIO_MC9S08DZ60
753 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
754 depends on I2C=y && MACH_MX35_3DS
756 Select this to enable the MC9S08DZ60 GPIO driver
759 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
761 Say yes here to provide access to several register-oriented
762 SMBus I/O expanders, made mostly by NXP or TI. Compatible
765 4 bits: pca9536, pca9537
767 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
768 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
770 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
775 40 bits: pca9505, pca9698
777 config GPIO_PCA953X_IRQ
778 bool "Interrupt controller support for PCA953x"
779 depends on GPIO_PCA953X=y
780 select GPIOLIB_IRQCHIP
782 Say yes here to enable the pca953x to be used as an interrupt
783 controller. It requires the driver to be built in the kernel.
786 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
787 select GPIOLIB_IRQCHIP
790 Say yes here to provide access to most "quasi-bidirectional" I2C
791 GPIO expanders used for additional digital outputs or inputs.
792 Most of these parts are from NXP, though TI is a second source for
793 some of them. Compatible models include:
795 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
796 pca9670, pca9672, pca9674, pca9674a,
799 16 bits: pcf8575, pcf8575c, pca8575,
800 pca9671, pca9673, pca9675
802 Your board setup code will need to declare the expanders in
803 use, and assign numbers to the GPIOs they expose. Those GPIOs
804 can then be used from drivers and other kernel code, just like
805 other GPIOs, but only accessible from task contexts.
807 This driver provides an in-kernel interface to those GPIOs using
808 platform-neutral GPIO calls.
811 bool "Semtech SX150x I2C GPIO expander (deprecated)"
812 depends on PINCTRL && I2C=y
813 select PINCTRL_SX150X
816 Say yes here to provide support for Semtech SX150x-series I2C
817 GPIO expanders. The GPIO driver was replaced by a Pinctrl version.
820 tristate "TPIC2810 8-Bit I2C GPO expander"
822 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
824 To compile this driver as a module, choose M here: the module will
825 be called gpio-tpic2810.
828 tristate "Technologic Systems FPGA I2C GPIO"
829 depends on SOC_IMX6 || COMPILE_TEST
832 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
833 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
837 menu "MFD GPIO expanders"
840 tristate "GPIO Support for ADP5520 PMIC"
841 depends on PMIC_ADP5520
843 This option enables support for on-chip GPIO found
844 on Analog Devices ADP5520 PMICs.
846 config GPIO_ALTERA_A10SR
847 tristate "Altera Arria10 System Resource GPIO"
848 depends on MFD_ALTERA_A10SR
850 Driver for Arria10 Development Kit GPIO expansion which
851 includes reads of pushbuttons and DIP switches as well
855 tristate "Wolfson Microelectronics Arizona class devices"
856 depends on MFD_ARIZONA
858 Support for GPIOs on Wolfson Arizona class devices.
860 config GPIO_BD9571MWV
861 tristate "ROHM BD9571 GPIO support"
862 depends on MFD_BD9571MWV
864 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
865 available on the ROHM PMIC in total, both of which can also
868 This driver can also be built as a module. If so, the module
869 will be called gpio-bd9571mwv.
871 config GPIO_CRYSTAL_COVE
872 tristate "GPIO support for Crystal Cove PMIC"
873 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
874 select GPIOLIB_IRQCHIP
876 Support for GPIO pins on Crystal Cove PMIC.
878 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
881 This driver can also be built as a module. If so, the module will be
882 called gpio-crystalcove.
885 tristate "AMD CS5535/CS5536 GPIO support"
886 depends on X86 || MIPS || COMPILE_TEST
887 depends on MFD_CS5535
889 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
890 can be used for quite a number of things. The CS5535/6 is found on
891 AMD Geode and Lemote Yeeloong devices.
896 tristate "Dialog DA9052 GPIO"
897 depends on PMIC_DA9052
899 Say yes here to enable the GPIO driver for the DA9052 chip.
902 tristate "Dialog Semiconductor DA9055 GPIO"
903 depends on MFD_DA9055
905 Say yes here to enable the GPIO driver for the DA9055 chip.
907 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
908 be controller by this driver.
910 If driver is built as a module it will be called gpio-da9055.
913 tristate "Diolan DLN2 GPIO support"
915 select GPIOLIB_IRQCHIP
918 Select this option to enable GPIO driver for the Diolan DLN2
921 This driver can also be built as a module. If so, the module
922 will be called gpio-dln2.
925 bool "HTC EGPIO support"
926 depends on GPIOLIB && ARM
928 This driver supports the CPLD egpio chip present on
929 several HTC phones. It provides basic support for input
930 pins, output pins, and irqs.
933 tristate "Janz VMOD-TTL Digital IO Module"
934 depends on MFD_JANZ_CMODIO
936 This enables support for the Janz VMOD-TTL Digital IO module.
937 This driver provides support for driving the pins in output
938 mode only. Input mode is not supported.
941 tristate "Kontron ETX / COMexpress GPIO"
942 depends on MFD_KEMPLD
944 This enables support for the PLD GPIO interface on some Kontron ETX
945 and COMexpress (ETXexpress) modules.
947 This driver can also be built as a module. If so, the module will be
951 tristate "TI/National Semiconductor LP3943 GPIO expander"
952 depends on MFD_LP3943
954 GPIO driver for LP3943 MFD.
955 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
956 Open drain outputs are required for this usage.
959 tristate "TI LP873X GPO"
960 depends on MFD_TI_LP873X
962 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
965 This driver can also be built as a module. If so, the module will be
969 tristate "TI LP87565 GPIO"
970 depends on MFD_TI_LP87565
972 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
975 This driver can also be built as a module. If so, the module will be
979 tristate "GPIO support for PMIC MAX77620 and MAX20024"
980 depends on MFD_MAX77620
982 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
983 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
984 driver also provides interrupt support for each of the gpios.
985 Say yes here to enable the max77620 to be used as gpio controller.
988 bool "Intel MSIC mixed signal gpio support"
989 depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
991 Enable support for GPIO on intel MSIC controllers found in
995 bool "TI PALMAS series PMICs GPIO"
996 depends on MFD_PALMAS
998 Select this option to enable GPIO driver for the TI PALMAS
1002 bool "RICOH RC5T583 GPIO"
1003 depends on MFD_RC5T583
1005 Select this option to enable GPIO driver for the Ricoh RC5T583
1007 This driver provides the support for driving/reading the gpio pins
1008 of RC5T583 device through standard gpio library.
1012 depends on MFD_STMPE
1014 select GPIOLIB_IRQCHIP
1016 This enables support for the GPIOs found on the STMPE I/O
1020 bool "TC3589X GPIOs"
1021 depends on MFD_TC3589X
1023 select GPIOLIB_IRQCHIP
1025 This enables support for the GPIOs found on the TC3589X
1028 config GPIO_TIMBERDALE
1029 bool "Support for timberdale GPIO IP"
1030 depends on MFD_TIMBERDALE
1032 Add support for the GPIO IP in the timberdale FPGA.
1034 config GPIO_TPS65086
1035 tristate "TI TPS65086 GPO"
1036 depends on MFD_TPS65086
1038 This driver supports the GPO on TI TPS65086x PMICs.
1040 config GPIO_TPS65218
1041 tristate "TPS65218 GPIO"
1042 depends on MFD_TPS65218
1044 Select this option to enable GPIO driver for the TPS65218
1047 config GPIO_TPS6586X
1048 bool "TPS6586X GPIO"
1049 depends on MFD_TPS6586X
1051 Select this option to enable GPIO driver for the TPS6586X
1054 config GPIO_TPS65910
1055 bool "TPS65910 GPIO"
1056 depends on MFD_TPS65910
1058 Select this option to enable GPIO driver for the TPS65910
1061 config GPIO_TPS65912
1062 tristate "TI TPS65912 GPIO"
1063 depends on MFD_TPS65912
1065 This driver supports TPS65912 gpio chip
1068 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1069 depends on TWL4030_CORE
1071 Say yes here to access the GPIO signals of various multi-function
1072 power management chips from Texas Instruments.
1075 tristate "TWL6040 GPO"
1076 depends on TWL6040_CORE
1078 Say yes here to access the GPO signals of twl6040
1079 audio chip from Texas Instruments.
1082 tristate "Philips UCB1400 GPIO"
1083 depends on UCB1400_CORE
1085 This enables support for the Philips UCB1400 GPIO pins.
1086 The UCB1400 is an AC97 audio codec.
1088 config GPIO_WHISKEY_COVE
1089 tristate "GPIO support for Whiskey Cove PMIC"
1090 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1091 select GPIOLIB_IRQCHIP
1093 Support for GPIO pins on Whiskey Cove PMIC.
1095 Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1098 This driver can also be built as a module. If so, the module will be
1102 tristate "WM831x GPIOs"
1103 depends on MFD_WM831X
1105 Say yes here to access the GPIO signals of WM831x power management
1106 chips from Wolfson Microelectronics.
1109 tristate "WM8350 GPIOs"
1110 depends on MFD_WM8350
1112 Say yes here to access the GPIO signals of WM8350 power management
1113 chips from Wolfson Microelectronics.
1116 tristate "WM8994 GPIOs"
1117 depends on MFD_WM8994
1119 Say yes here to access the GPIO signals of WM8994 audio hub
1120 CODECs from Wolfson Microelectronics.
1124 menu "PCI GPIO expanders"
1128 tristate "AMD 8111 GPIO driver"
1129 depends on X86 || COMPILE_TEST
1131 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1133 Note, that usually system firmware/ACPI handles GPIO pins on their
1134 own and users might easily break their systems with uncarefull usage
1140 tristate "BT8XX GPIO abuser"
1141 depends on VIDEO_BT848=n
1143 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1144 as a cheap PCI GPIO card.
1146 This chip can be found on Miro, Hauppauge and STB TV-cards.
1148 The card needs to be physically altered for using it as a
1149 GPIO card. For more information on how to build a GPIO card
1150 from a BT8xx TV card, see the documentation file at
1151 Documentation/bt8xxgpio.txt
1155 config GPIO_INTEL_MID
1156 bool "Intel MID GPIO support"
1157 depends on X86_INTEL_MID
1158 select GPIOLIB_IRQCHIP
1160 Say Y here to support Intel MID GPIO.
1162 config GPIO_MERRIFIELD
1163 tristate "Intel Merrifield GPIO support"
1164 depends on X86_INTEL_MID
1165 select GPIOLIB_IRQCHIP
1167 Say Y here to support Intel Merrifield GPIO.
1170 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1171 depends on X86 || COMPILE_TEST
1172 select GENERIC_IRQ_CHIP
1174 ML7213 is companion chip for Intel Atom E6xx series.
1175 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1176 Hub) which is for IVI(In-Vehicle Infotainment) use.
1177 This driver can access the IOH's GPIO device.
1180 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1181 depends on X86_32 || MIPS || COMPILE_TEST
1182 select GENERIC_IRQ_CHIP
1184 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1185 which is an IOH(Input/Output Hub) for x86 embedded processor.
1186 This driver can access PCH GPIO device.
1188 This driver also can be used for LAPIS Semiconductor IOH(Input/
1189 Output Hub), ML7223 and ML7831.
1190 ML7223 IOH is for MP(Media Phone) use.
1191 ML7831 IOH is for general purpose use.
1192 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1193 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1195 config GPIO_PCI_IDIO_16
1196 tristate "ACCES PCI-IDIO-16 GPIO support"
1197 select GPIOLIB_IRQCHIP
1199 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1200 generated when any of the inputs change state (low to high or high to
1201 low). Input filter control is not supported by this driver, and the
1202 input filters are deactivated by this driver.
1205 tristate "RDC R-321x GPIO support"
1209 Support for the RDC R321x SoC GPIOs over southbridge
1210 PCI configuration space.
1212 config GPIO_SODAVILLE
1213 bool "Intel Sodaville GPIO support"
1214 depends on X86 && OF
1216 select GENERIC_IRQ_CHIP
1218 Say Y here to support Intel Sodaville GPIO.
1222 menu "SPI GPIO expanders"
1223 depends on SPI_MASTER
1226 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1229 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1230 shift registers. This driver can be used to provide access
1231 to more gpio outputs.
1234 tristate "Maxim MAX7301 GPIO expander"
1237 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1240 tristate "Freescale MC33880 high-side/low-side switch"
1242 SPI driver for Freescale MC33880 high-side/low-side switch.
1243 This provides GPIO interface supporting inputs and outputs.
1246 tristate "Generic parallel-in/serial-out shift register"
1248 GPIO driver for SPI compatible parallel-in/serial-out shift
1249 registers. These are input only devices.
1252 tristate "EXAR XRA1403 16-bit GPIO expander"
1255 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1259 menu "USB GPIO expanders"
1262 config GPIO_VIPERBOARD
1263 tristate "Viperboard GPIO a & b support"
1264 depends on MFD_VIPERBOARD
1266 Say yes here to access the GPIO signals of Nano River
1267 Technologies Viperboard. There are two GPIO chips on the
1268 board: gpioa and gpiob.
1269 See viperboard API specification and Nano
1270 River Tech's viperboard.h for detailed meaning
1271 of the module parameters.