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 ARM && 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 bool "GE FPGA based GPIO"
193 Support for common GPIO functionality provided on some GE Single Board
196 This driver provides basic support (configure as input or output, read
197 and write pin state) for GPIO implemented in a number of GE single
200 config GPIO_GENERIC_PLATFORM
201 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
204 Say yes here to support basic platform_device memory-mapped GPIO controllers.
207 tristate "Aeroflex Gaisler GRGPIO support"
212 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
213 VHDL IP core library.
216 tristate "Intel ICH GPIO"
217 depends on PCI && X86
221 Say yes here to support the GPIO functionality of a number of Intel
222 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
223 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
224 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
229 tristate "Intel IOP GPIO"
230 depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST
233 Say yes here to support the GPIO functionality of a number of Intel
239 bool "Loongson-2/3 GPIO support"
240 depends on CPU_LOONGSON2 || CPU_LOONGSON3
242 driver for GPIO functionality on Loongson-2F/3A/3B processors.
245 tristate "NXP LPC18XX/43XX GPIO support"
246 default y if ARCH_LPC18XX
247 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
249 Select this option to enable GPIO driver for
250 NXP LPC18XX/43XX devices.
252 config GPIO_LYNXPOINT
253 tristate "Intel Lynxpoint GPIO support"
254 depends on ACPI && X86
255 select GPIOLIB_IRQCHIP
257 driver for GPIO functionality on Intel Lynxpoint PCH chipset
258 Requires ACPI device enumeration code to set up a platform device.
261 bool "GPIO support for Fujitsu MB86S7x Platforms"
262 depends on ARCH_MB86S7X || COMPILE_TEST
264 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
267 tristate "MEN 16Z127 GPIO support"
271 Say yes here to support the MEN 16Z127 GPIO Controller
273 config GPIO_MM_LANTIQ
274 bool "Lantiq Memory mapped GPIOs"
275 depends on LANTIQ && SOC_XWAY
277 This enables support for memory mapped GPIOs on the External Bus Unit
278 (EBU) found on Lantiq SoCs. The gpios are output only as they are
279 created by attaching a 16bit latch to the bus.
282 tristate "GPIO Testing Driver"
283 depends on GPIOLIB && SYSFS
286 This enables GPIO Testing driver, which provides a way to test GPIO
287 subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
288 must be selected for this test.
289 User could use it through the script in
290 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
294 bool "MOXART GPIO support"
295 depends on ARCH_MOXART || COMPILE_TEST
298 Select this option to enable GPIO driver for
299 MOXA ART SoC devices.
303 depends on PPC_MPC52xx
306 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
307 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
308 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
313 Say Y here if you're going to use hardware that connects to the
314 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
318 depends on PLAT_ORION
320 select GENERIC_IRQ_CHIP
326 select GENERIC_IRQ_CHIP
332 select GENERIC_IRQ_CHIP
335 tristate "Cavium OCTEON GPIO"
336 depends on GPIOLIB && CAVIUM_OCTEON_SOC
339 Say yes here to support the on-chip GPIO lines on the OCTEON
343 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
344 default y if ARCH_OMAP
346 select GENERIC_IRQ_CHIP
347 select GPIOLIB_IRQCHIP
349 Say yes here to enable GPIO support for TI OMAP SoCs.
352 bool "PrimeCell PL061 GPIO support"
355 select GPIOLIB_IRQCHIP
357 Say yes here to support the PrimeCell PL061 GPIO device
360 bool "PXA GPIO support"
361 depends on ARCH_PXA || ARCH_MMP
363 Say yes here to support the PXA GPIO device
366 tristate "Renesas R-Car GPIO"
367 depends on ARCH_RENESAS || COMPILE_TEST
368 select GPIOLIB_IRQCHIP
370 Say yes here to support GPIO on Renesas R-Car SoCs.
372 config GPIO_SPEAR_SPICS
373 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
374 depends on PLAT_SPEAR
375 select GENERIC_IRQ_CHIP
377 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
380 bool "STA2x11/ConneXt GPIO support"
381 depends on MFD_STA2X11
382 select GENERIC_IRQ_CHIP
384 Say yes here to support the STA2x11/ConneXt GPIO device.
385 The GPIO module has 128 GPIO pins with alternate functions.
388 bool "XWAY STP GPIOs"
391 This enables support for the Serial To Parallel (STP) unit found on
392 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
393 that can be up to 24 bit. This peripheral is aimed at driving leds.
394 Some of the gpios/leds can be auto updated by the soc with dsl and
398 tristate "GPIO based on SYSCON"
399 depends on MFD_SYSCON && OF
401 Say yes here to support GPIO functionality though SYSCON driver.
405 select GENERIC_IRQ_CHIP
409 bool "NVIDIA Tegra GPIO support"
411 depends on ARCH_TEGRA || COMPILE_TEST
414 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
417 tristate "TS-4800 DIO blocks and compatibles"
419 depends on SOC_IMX51 || COMPILE_TEST
422 This driver support TS-4800 FPGA GPIO controllers.
425 bool "Toumaz Xenif TZ1090 GPIO support"
426 depends on SOC_TZ1090
427 select GENERIC_IRQ_CHIP
430 Say yes here to support Toumaz Xenif TZ1090 GPIOs.
432 config GPIO_TZ1090_PDC
433 bool "Toumaz Xenif TZ1090 PDC GPIO support"
434 depends on SOC_TZ1090
437 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
441 depends on ARCH_MXC && SOC_VF610
442 select GPIOLIB_IRQCHIP
444 Say yes here to support Vybrid vf610 GPIOs.
447 tristate "NEC VR4100 series General-purpose I/O Uint support"
448 depends on CPU_VR41XX
450 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
453 tristate "VIA VX855/VX875 GPIO"
458 Support access to the VX855/VX875 GPIO lines through the gpio library.
460 This driver provides common support for accessing the device,
461 additional drivers must be enabled in order to use the
462 functionality of the device.
465 bool "APM X-Gene GPIO controller support"
466 depends on ARM64 && OF_GPIO
468 This driver is to support the GPIO block within the APM X-Gene SoC
469 platform's generic flash controller. The GPIO pins are muxed with
470 the generic flash controller's address and data pins. Say yes
471 here to enable the GFC GPIO functionality.
474 tristate "APM X-Gene GPIO standby controller support"
475 depends on ARCH_XGENE && OF_GPIO
477 select GPIOLIB_IRQCHIP
479 This driver supports the GPIO block within the APM X-Gene
480 Standby Domain. Say yes here to enable the GPIO functionality.
483 tristate "Xilinx GPIO support"
486 Say yes here to support the Xilinx FPGA GPIO device
489 tristate "Netlogic XLP GPIO support"
490 depends on OF_GPIO && (CPU_XLP || ARCH_VULCAN || COMPILE_TEST)
491 select GPIOLIB_IRQCHIP
493 This driver provides support for GPIO interface on Netlogic XLP MIPS64
494 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
500 bool "Xtensa GPIO32 support"
502 depends on HAVE_XTENSA_GPIO32
505 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
506 and EXPSTATE (output) ports
509 bool "LSI ZEVIO SoC memory mapped GPIOs"
510 depends on ARM && OF_GPIO
512 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
515 tristate "Xilinx Zynq GPIO support"
516 depends on ARCH_ZYNQ || ARCH_ZYNQMP
517 select GPIOLIB_IRQCHIP
519 Say yes here to support Xilinx Zynq GPIO controller.
522 bool "ZTE ZX GPIO support"
523 select GPIOLIB_IRQCHIP
525 Say yes here to support the GPIO device on ZTE ZX SoCs.
527 config GPIO_LOONGSON1
528 tristate "Loongson1 GPIO support"
529 depends on MACH_LOONGSON32
532 Say Y or M here to support GPIO on Loongson1 SoCs.
536 menu "Port-mapped I/O GPIO drivers"
537 depends on X86 # Unconditional I/O space access
539 config GPIO_104_DIO_48E
540 tristate "ACCES 104-DIO-48E GPIO support"
541 depends on ISA_BUS_API
542 select GPIOLIB_IRQCHIP
544 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
545 104-DIO-24E). The base port addresses for the devices may be
546 configured via the base module parameter. The interrupt line numbers
547 for the devices may be configured via the irq module parameter.
549 config GPIO_104_IDIO_16
550 tristate "ACCES 104-IDIO-16 GPIO support"
551 depends on ISA_BUS_API
552 select GPIOLIB_IRQCHIP
554 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
555 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
556 base port addresses for the devices may be configured via the base
557 module parameter. The interrupt line numbers for the devices may be
558 configured via the irq module parameter.
560 config GPIO_104_IDI_48
561 tristate "ACCES 104-IDI-48 GPIO support"
562 depends on ISA_BUS_API
563 select GPIOLIB_IRQCHIP
565 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
566 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
567 the devices may be configured via the base module parameter. The
568 interrupt line numbers for the devices may be configured via the irq
572 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
574 This option enables support for GPIOs found on Fintek Super-I/O
575 chips F71869, F71869A, F71882FG, F71889F and F81866.
577 To compile this driver as a module, choose M here: the module will
578 be called f7188x-gpio.
581 tristate "Diamond Systems GPIO-MM GPIO support"
582 depends on ISA_BUS_API
584 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
586 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
587 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
588 support for these 48 channels of digital I/O.
590 The base port addresses for the devices may be configured via the base
591 array module parameter.
594 tristate "IT87xx GPIO support"
596 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
598 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
599 supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
601 To compile this driver as a module, choose M here: the module will
605 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
610 Say yes here to support GPIO interface on Intel Poulsbo SCH,
611 Intel Tunnel Creek processor, Intel Centerton processor or
612 Intel Quark X1000 SoC.
614 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
615 powered by the core power rail and are turned off during sleep
616 modes (S3 and higher). The remaining four GPIOs are powered by
617 the Intel SCH suspend power supply. These GPIOs remain
618 active during S3. The suspend powered GPIOs can be used to wake the
619 system from the Suspend-to-RAM state.
621 The Intel Tunnel Creek processor has 5 GPIOs powered by the
622 core power rail and 9 from suspend power supply.
624 The Intel Centerton processor has a total of 30 GPIO pins.
625 Twenty-one are powered by the core power rail and 9 from the
626 suspend power supply.
628 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
629 power well and 6 from the suspend power well.
632 tristate "SMSC SCH311x SuperI/O GPIO"
634 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
635 SCH3116 "Super I/O" chipsets.
637 To compile this driver as a module, choose M here: the module will
638 be called gpio-sch311x.
641 tristate "TS-5500 DIO blocks and compatibles"
642 depends on TS5500 || COMPILE_TEST
644 This driver supports Digital I/O exposed by pin blocks found on some
645 Technologic Systems platforms. It includes, but is not limited to, 3
646 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
650 tristate "WinSystems WS16C48 GPIO support"
651 depends on ISA_BUS_API
652 select GPIOLIB_IRQCHIP
654 Enables GPIO support for the WinSystems WS16C48. The base port
655 addresses for the devices may be configured via the base module
656 parameter. The interrupt line numbers for the devices may be
657 configured via the irq module parameter.
661 menu "I2C GPIO expanders"
665 tristate "ADP5588 I2C GPIO expander"
667 This option enables support for 18 GPIOs found
668 on Analog Devices ADP5588 GPIO Expanders.
670 config GPIO_ADP5588_IRQ
671 bool "Interrupt controller support for ADP5588"
672 depends on GPIO_ADP5588=y
674 Say yes here to enable the adp5588 to be used as an interrupt
675 controller. It requires the driver to be built in the kernel.
678 tristate "Avionic Design N-bit GPIO expander"
680 select GPIOLIB_IRQCHIP
682 This option enables support for N GPIOs found on Avionic Design
683 I2C GPIO expanders. The register space will be extended by powers
684 of two, so the controller will need to accommodate for that. For
685 example: if a controller provides 48 pins, 6 registers will be
686 enough to represent all pins, but the driver will assume a
687 register layout for 64 pins (8 registers).
690 tristate "Maxim MAX7300 GPIO expander"
693 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
696 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
698 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
699 Port Expanders. Each IO port on these chips has a fixed role of
700 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
701 Input and Output (designed by 'P'). The combinations are listed
704 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
705 max7322 (4I4O), max7323 (4P4O)
707 16 bits: max7324 (8I8O), max7325 (8P8O),
708 max7326 (4I12O), max7327 (4P12O)
710 Board setup code must specify the model to use, and the start
711 number for these GPIOs.
713 config GPIO_MAX732X_IRQ
714 bool "Interrupt controller support for MAX732x"
715 depends on GPIO_MAX732X=y
716 select GPIOLIB_IRQCHIP
718 Say yes here to enable the max732x to be used as an interrupt
719 controller. It requires the driver to be built in the kernel.
721 config GPIO_MC9S08DZ60
722 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
723 depends on I2C=y && MACH_MX35_3DS
725 Select this to enable the MC9S08DZ60 GPIO driver
728 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
730 Say yes here to provide access to several register-oriented
731 SMBus I/O expanders, made mostly by NXP or TI. Compatible
734 4 bits: pca9536, pca9537
736 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
737 pca9556, pca9557, pca9574, tca6408, xra1202
739 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
744 40 bits: pca9505, pca9698
746 config GPIO_PCA953X_IRQ
747 bool "Interrupt controller support for PCA953x"
748 depends on GPIO_PCA953X=y
749 select GPIOLIB_IRQCHIP
751 Say yes here to enable the pca953x to be used as an interrupt
752 controller. It requires the driver to be built in the kernel.
755 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
756 select GPIOLIB_IRQCHIP
759 Say yes here to provide access to most "quasi-bidirectional" I2C
760 GPIO expanders used for additional digital outputs or inputs.
761 Most of these parts are from NXP, though TI is a second source for
762 some of them. Compatible models include:
764 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
765 pca9670, pca9672, pca9674, pca9674a,
768 16 bits: pcf8575, pcf8575c, pca8575,
769 pca9671, pca9673, pca9675
771 Your board setup code will need to declare the expanders in
772 use, and assign numbers to the GPIOs they expose. Those GPIOs
773 can then be used from drivers and other kernel code, just like
774 other GPIOs, but only accessible from task contexts.
776 This driver provides an in-kernel interface to those GPIOs using
777 platform-neutral GPIO calls.
780 bool "Semtech SX150x I2C GPIO expander"
782 select GPIOLIB_IRQCHIP
785 Say yes here to provide support for Semtech SX150-series I2C
786 GPIO expanders. Compatible models include:
792 tristate "TPIC2810 8-Bit I2C GPO expander"
794 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
796 To compile this driver as a module, choose M here: the module will
797 be called gpio-tpic2810.
800 tristate "Technologic Systems FPGA I2C GPIO"
803 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
804 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
808 menu "MFD GPIO expanders"
811 tristate "GPIO Support for ADP5520 PMIC"
812 depends on PMIC_ADP5520
814 This option enables support for on-chip GPIO found
815 on Analog Devices ADP5520 PMICs.
818 tristate "Wolfson Microelectronics Arizona class devices"
819 depends on MFD_ARIZONA
821 Support for GPIOs on Wolfson Arizona class devices.
823 config GPIO_CRYSTAL_COVE
824 tristate "GPIO support for Crystal Cove PMIC"
825 depends on INTEL_SOC_PMIC
826 select GPIOLIB_IRQCHIP
828 Support for GPIO pins on Crystal Cove PMIC.
830 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
833 This driver can also be built as a module. If so, the module will be
834 called gpio-crystalcove.
837 tristate "AMD CS5535/CS5536 GPIO support"
838 depends on MFD_CS5535
840 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
841 can be used for quite a number of things. The CS5535/6 is found on
842 AMD Geode and Lemote Yeeloong devices.
847 tristate "Dialog DA9052 GPIO"
848 depends on PMIC_DA9052
850 Say yes here to enable the GPIO driver for the DA9052 chip.
853 tristate "Dialog Semiconductor DA9055 GPIO"
854 depends on MFD_DA9055
856 Say yes here to enable the GPIO driver for the DA9055 chip.
858 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
859 be controller by this driver.
861 If driver is built as a module it will be called gpio-da9055.
864 tristate "Diolan DLN2 GPIO support"
866 select GPIOLIB_IRQCHIP
869 Select this option to enable GPIO driver for the Diolan DLN2
872 This driver can also be built as a module. If so, the module
873 will be called gpio-dln2.
876 bool "HTC EGPIO support"
877 depends on GPIOLIB && ARM
879 This driver supports the CPLD egpio chip present on
880 several HTC phones. It provides basic support for input
881 pins, output pins, and irqs.
884 tristate "Janz VMOD-TTL Digital IO Module"
885 depends on MFD_JANZ_CMODIO
887 This enables support for the Janz VMOD-TTL Digital IO module.
888 This driver provides support for driving the pins in output
889 mode only. Input mode is not supported.
892 tristate "Kontron ETX / COMexpress GPIO"
893 depends on MFD_KEMPLD
895 This enables support for the PLD GPIO interface on some Kontron ETX
896 and COMexpress (ETXexpress) modules.
898 This driver can also be built as a module. If so, the module will be
902 tristate "TI/National Semiconductor LP3943 GPIO expander"
903 depends on MFD_LP3943
905 GPIO driver for LP3943 MFD.
906 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
907 Open drain outputs are required for this usage.
910 tristate "TI LP873X GPO"
911 depends on MFD_TI_LP873X
913 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
916 This driver can also be built as a module. If so, the module will be
920 tristate "GPIO support for PMIC MAX77620 and MAX20024"
921 depends on MFD_MAX77620
923 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
924 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
925 driver also provides interrupt support for each of the gpios.
926 Say yes here to enable the max77620 to be used as gpio controller.
929 bool "Intel MSIC mixed signal gpio support"
930 depends on MFD_INTEL_MSIC
932 Enable support for GPIO on intel MSIC controllers found in
936 bool "TI PALMAS series PMICs GPIO"
937 depends on MFD_PALMAS
939 Select this option to enable GPIO driver for the TI PALMAS
943 bool "RICOH RC5T583 GPIO"
944 depends on MFD_RC5T583
946 Select this option to enable GPIO driver for the Ricoh RC5T583
948 This driver provides the support for driving/reading the gpio pins
949 of RC5T583 device through standard gpio library.
955 select GPIOLIB_IRQCHIP
957 This enables support for the GPIOs found on the STMPE I/O
962 depends on MFD_TC3589X
964 select GPIOLIB_IRQCHIP
966 This enables support for the GPIOs found on the TC3589X
969 config GPIO_TIMBERDALE
970 bool "Support for timberdale GPIO IP"
971 depends on MFD_TIMBERDALE
973 Add support for the GPIO IP in the timberdale FPGA.
976 tristate "TI TPS65086 GPO"
977 depends on MFD_TPS65086
979 This driver supports the GPO on TI TPS65086x PMICs.
982 tristate "TPS65218 GPIO"
983 depends on MFD_TPS65218
985 Select this option to enable GPIO driver for the TPS65218
990 depends on MFD_TPS6586X
992 Select this option to enable GPIO driver for the TPS6586X
997 depends on MFD_TPS65910
999 Select this option to enable GPIO driver for the TPS65910
1002 config GPIO_TPS65912
1003 tristate "TI TPS65912 GPIO"
1004 depends on MFD_TPS65912
1006 This driver supports TPS65912 gpio chip
1009 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1010 depends on TWL4030_CORE
1012 Say yes here to access the GPIO signals of various multi-function
1013 power management chips from Texas Instruments.
1016 tristate "TWL6040 GPO"
1017 depends on TWL6040_CORE
1019 Say yes here to access the GPO signals of twl6040
1020 audio chip from Texas Instruments.
1023 tristate "Philips UCB1400 GPIO"
1024 depends on UCB1400_CORE
1026 This enables support for the Philips UCB1400 GPIO pins.
1027 The UCB1400 is an AC97 audio codec.
1029 config GPIO_WHISKEY_COVE
1030 tristate "GPIO support for Whiskey Cove PMIC"
1031 depends on INTEL_SOC_PMIC
1032 select GPIOLIB_IRQCHIP
1034 Support for GPIO pins on Whiskey Cove PMIC.
1036 Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1039 This driver can also be built as a module. If so, the module will be
1043 tristate "WM831x GPIOs"
1044 depends on MFD_WM831X
1046 Say yes here to access the GPIO signals of WM831x power management
1047 chips from Wolfson Microelectronics.
1050 tristate "WM8350 GPIOs"
1051 depends on MFD_WM8350
1053 Say yes here to access the GPIO signals of WM8350 power management
1054 chips from Wolfson Microelectronics.
1057 tristate "WM8994 GPIOs"
1058 depends on MFD_WM8994
1060 Say yes here to access the GPIO signals of WM8994 audio hub
1061 CODECs from Wolfson Microelectronics.
1065 menu "PCI GPIO expanders"
1069 tristate "AMD 8111 GPIO driver"
1071 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1073 Note, that usually system firmware/ACPI handles GPIO pins on their
1074 own and users might easily break their systems with uncarefull usage
1080 tristate "BT8XX GPIO abuser"
1081 depends on VIDEO_BT848=n
1083 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1084 as a cheap PCI GPIO card.
1086 This chip can be found on Miro, Hauppauge and STB TV-cards.
1088 The card needs to be physically altered for using it as a
1089 GPIO card. For more information on how to build a GPIO card
1090 from a BT8xx TV card, see the documentation file at
1091 Documentation/bt8xxgpio.txt
1095 config GPIO_INTEL_MID
1096 bool "Intel MID GPIO support"
1097 depends on X86_INTEL_MID
1098 select GPIOLIB_IRQCHIP
1100 Say Y here to support Intel MID GPIO.
1102 config GPIO_MERRIFIELD
1103 tristate "Intel Merrifield GPIO support"
1104 depends on X86_INTEL_MID
1105 select GPIOLIB_IRQCHIP
1107 Say Y here to support Intel Merrifield GPIO.
1110 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1111 select GENERIC_IRQ_CHIP
1113 ML7213 is companion chip for Intel Atom E6xx series.
1114 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1115 Hub) which is for IVI(In-Vehicle Infotainment) use.
1116 This driver can access the IOH's GPIO device.
1119 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1120 depends on X86_32 || MIPS || COMPILE_TEST
1121 select GENERIC_IRQ_CHIP
1123 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1124 which is an IOH(Input/Output Hub) for x86 embedded processor.
1125 This driver can access PCH GPIO device.
1127 This driver also can be used for LAPIS Semiconductor IOH(Input/
1128 Output Hub), ML7223 and ML7831.
1129 ML7223 IOH is for MP(Media Phone) use.
1130 ML7831 IOH is for general purpose use.
1131 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1132 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1135 tristate "RDC R-321x GPIO support"
1139 Support for the RDC R321x SoC GPIOs over southbridge
1140 PCI configuration space.
1142 config GPIO_SODAVILLE
1143 bool "Intel Sodaville GPIO support"
1144 depends on X86 && OF
1146 select GENERIC_IRQ_CHIP
1148 Say Y here to support Intel Sodaville GPIO.
1152 menu "SPI GPIO expanders"
1153 depends on SPI_MASTER
1156 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1159 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1160 shift registers. This driver can be used to provide access
1161 to more gpio outputs.
1164 tristate "Maxim MAX7301 GPIO expander"
1167 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1170 tristate "Freescale MC33880 high-side/low-side switch"
1172 SPI driver for Freescale MC33880 high-side/low-side switch.
1173 This provides GPIO interface supporting inputs and outputs.
1176 tristate "Generic parallel-in/serial-out shift register"
1178 GPIO driver for SPI compatible parallel-in/serial-out shift
1179 registers. These are input only devices.
1183 menu "SPI or I2C GPIO expanders"
1184 depends on (SPI_MASTER && !I2C) || I2C
1186 config GPIO_MCP23S08
1187 tristate "Microchip MCP23xxx I/O expander"
1189 select GPIOLIB_IRQCHIP
1190 select REGMAP_I2C if I2C
1191 select REGMAP if SPI_MASTER
1193 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
1195 This provides a GPIO interface supporting inputs and outputs.
1196 The I2C versions of the chips can be used as interrupt-controller.
1200 menu "USB GPIO expanders"
1203 config GPIO_VIPERBOARD
1204 tristate "Viperboard GPIO a & b support"
1205 depends on MFD_VIPERBOARD
1207 Say yes here to access the GPIO signals of Nano River
1208 Technologies Viperboard. There are two GPIO chips on the
1209 board: gpioa and gpiob.
1210 See viperboard API specification and Nano
1211 River Tech's viperboard.h for detailed meaning
1212 of the module parameters.