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
13 config ARCH_WANT_OPTIONAL_GPIOLIB
16 Select this config option from the architecture Kconfig, if
17 it is possible to use gpiolib on the architecture, but let the
18 user decide whether to actually build it or not.
19 Select this instead of ARCH_REQUIRE_GPIOLIB, if your architecture does
20 not depend on GPIOs being available, but rather let the user
21 decide whether he needs it or not.
23 config ARCH_REQUIRE_GPIOLIB
27 Platforms select gpiolib if they use this infrastructure
28 for all their GPIOs, usually starting with ones integrated
30 Selecting this from the architecture code will cause the gpiolib
31 code to always get built in.
36 depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB
38 This enables GPIO support through the generic GPIO library.
39 You only need to enable this, if you also want to enable
40 one or more of the GPIO drivers below.
58 config GPIOLIB_IRQCHIP
63 bool "Debug GPIO calls"
64 depends on DEBUG_KERNEL
66 Say Y here to add some extra checks and diagnostics to GPIO calls.
67 These checks help ensure that GPIOs have been properly initialized
68 before they are used, and that sleeping calls are not made from
69 non-sleeping contexts. They can make bitbanged serial protocols
70 slower. The diagnostics help catch the type of setup errors
71 that are most common when setting up new platforms or boards.
74 bool "/sys/class/gpio/... (sysfs interface)"
77 Say Y here to add a sysfs interface for GPIOs.
79 This is mostly useful to work around omissions in a system's
80 kernel support. Those are common in custom and semicustom
81 hardware assembled using standard kernels with a minimum of
82 custom patches. In those cases, userspace code may import
83 a given GPIO from the kernel, if no kernel driver requested it.
85 Kernel drivers may also request that a particular GPIO be
86 exported to userspace; this can be useful when debugging.
91 # put drivers in the right section, in alphabetical order
94 tristate "Dialog DA9052 GPIO"
95 depends on PMIC_DA9052
97 Say yes here to enable the GPIO driver for the DA9052 chip.
100 tristate "Dialog Semiconductor DA9055 GPIO"
101 depends on MFD_DA9055
103 Say yes here to enable the GPIO driver for the DA9055 chip.
105 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
106 be controller by this driver.
108 If driver is built as a module it will be called gpio-da9055.
113 comment "Memory mapped GPIO drivers:"
115 config GPIO_74XX_MMIO
116 tristate "GPIO driver for 74xx-ICs with MMIO access"
120 Say yes here to support GPIO functionality for 74xx-compatible ICs
121 with MMIO access. Compatible models include:
122 1 bit: 741G125 (Input), 741G74 (Output)
123 2 bits: 742G125 (Input), 7474 (Output)
124 4 bits: 74125 (Input), 74175 (Output)
125 6 bits: 74365 (Input), 74174 (Output)
126 8 bits: 74244 (Input), 74273 (Output)
127 16 bits: 741624 (Input), 7416374 (Output)
130 tristate "CLPS711X GPIO support"
131 depends on ARCH_CLPS711X || COMPILE_TEST
134 Say yes here to support GPIO on CLPS711X SoCs.
137 bool "TI Davinci/Keystone GPIO support"
138 default y if ARCH_DAVINCI
139 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
141 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
143 config GPIO_GENERIC_PLATFORM
144 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
147 Say yes here to support basic platform_device memory-mapped GPIO controllers.
150 tristate "Synopsys DesignWare APB GPIO driver"
151 depends on ((ARM || ARM64) && OF_GPIO) || X86_INTEL_QUARK
153 select GENERIC_IRQ_CHIP
155 Say Y or M here to build support for the Synopsys DesignWare APB
159 tristate "Altera GPIO"
162 select GPIOLIB_IRQCHIP
164 Say Y or M here to build support for the Altera PIO device.
166 If driver is built as a module it will be called gpio-altera.
169 tristate "IT8761E GPIO support"
170 depends on X86 # unconditional access to IO space.
172 Say yes here to support GPIO functionality of IT8761E super I/O chip.
175 tristate "Emma Mobile GPIO"
176 depends on ARM && OF_GPIO
178 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
182 depends on ARCH_EP93XX
186 bool "LSI ZEVIO SoC memory mapped GPIOs"
187 depends on ARM && OF_GPIO
189 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
191 config GPIO_MM_LANTIQ
192 bool "Lantiq Memory mapped GPIOs"
193 depends on LANTIQ && SOC_XWAY
195 This enables support for memory mapped GPIOs on the External Bus Unit
196 (EBU) found on Lantiq SoCs. The gpios are output only as they are
197 created by attaching a 16bit latch to the bus.
200 tristate "F71869, F71869A, F71882FG and F71889F GPIO support"
203 This option enables support for GPIOs found on Fintek Super-I/O
204 chips F71869, F71869A, F71882FG and F71889F.
206 To compile this driver as a module, choose M here: the module will
207 be called f7188x-gpio.
210 bool "GPIO support for Fujitsu MB86S7x Platforms"
211 depends on ARCH_MB86S7X
213 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
216 bool "MOXART GPIO support"
217 depends on ARCH_MOXART
220 Select this option to enable GPIO driver for
221 MOXA ART SoC devices.
225 depends on PPC_MPC52xx
228 bool "MPC512x/MPC8xxx GPIO support"
229 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
230 FSL_SOC_BOOKE || PPC_86xx
232 Say Y here if you're going to use hardware that connects to the
233 MPC512x/831x/834x/837x/8572/8610 GPIOs.
236 tristate "Qualcomm MSM GPIO v1"
237 depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50)
239 Say yes here to support the GPIO interface on ARM v6 based
240 Qualcomm MSM chips. Most of the pins on the MSM can be
241 selected for GPIO, and are controlled by this driver.
244 tristate "Qualcomm MSM GPIO v2"
245 depends on GPIOLIB && OF && ARCH_QCOM
247 Say yes here to support the GPIO interface on ARM v7 based
248 Qualcomm MSM chips. Most of the pins on the MSM can be
249 selected for GPIO, and are controlled by this driver.
253 depends on PLAT_ORION
256 select GENERIC_IRQ_CHIP
262 select GENERIC_IRQ_CHIP
268 select GENERIC_IRQ_CHIP
271 tristate "Cavium OCTEON GPIO"
272 depends on GPIOLIB && CAVIUM_OCTEON_SOC
275 Say yes here to support the on-chip GPIO lines on the OCTEON
279 bool "TI OMAP GPIO support" if COMPILE_TEST && !ARCH_OMAP2PLUS
280 default y if ARCH_OMAP
282 select GENERIC_IRQ_CHIP
283 select GPIOLIB_IRQCHIP
285 Say yes here to enable GPIO support for TI OMAP SoCs.
288 bool "PrimeCell PL061 GPIO support"
291 select GPIOLIB_IRQCHIP
293 Say yes here to support the PrimeCell PL061 GPIO device
296 bool "PXA GPIO support"
297 depends on ARCH_PXA || ARCH_MMP
299 Say yes here to support the PXA GPIO device
302 tristate "Renesas R-Car GPIO"
303 depends on ARM && (ARCH_SHMOBILE || COMPILE_TEST)
304 select GPIOLIB_IRQCHIP
306 Say yes here to support GPIO on Renesas R-Car SoCs.
310 depends on PLAT_SAMSUNG
312 Legacy GPIO support. Use only for platforms without support for
316 tristate "SMSC SCH311x SuperI/O GPIO"
318 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
319 SCH3116 "Super I/O" chipsets.
321 To compile this driver as a module, choose M here: the module will
322 be called gpio-sch311x.
324 config GPIO_SPEAR_SPICS
325 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
326 depends on PLAT_SPEAR
327 select GENERIC_IRQ_CHIP
329 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
332 bool "STA2x11/ConneXt GPIO support"
333 depends on MFD_STA2X11
334 select GENERIC_IRQ_CHIP
336 Say yes here to support the STA2x11/ConneXt GPIO device.
337 The GPIO module has 128 GPIO pins with alternate functions.
340 tristate "GPIO based on SYSCON"
341 depends on MFD_SYSCON && OF
343 Say yes here to support GPIO functionality though SYSCON driver.
346 tristate "TS-5500 DIO blocks and compatibles"
347 depends on TS5500 || COMPILE_TEST
349 This driver supports Digital I/O exposed by pin blocks found on some
350 Technologic Systems platforms. It includes, but is not limited to, 3
351 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
355 bool "Toumaz Xenif TZ1090 GPIO support"
356 depends on SOC_TZ1090
357 select GENERIC_IRQ_CHIP
360 Say yes here to support Toumaz Xenif TZ1090 GPIOs.
362 config GPIO_TZ1090_PDC
363 bool "Toumaz Xenif TZ1090 PDC GPIO support"
364 depends on SOC_TZ1090
367 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
371 depends on ARCH_MXC && SOC_VF610
372 select GPIOLIB_IRQCHIP
374 Say yes here to support Vybrid vf610 GPIOs.
377 bool "APM X-Gene GPIO controller support"
378 depends on ARM64 && OF_GPIO
380 This driver is to support the GPIO block within the APM X-Gene SoC
381 platform's generic flash controller. The GPIO pins are muxed with
382 the generic flash controller's address and data pins. Say yes
383 here to enable the GFC GPIO functionality.
386 tristate "APM X-Gene GPIO standby controller support"
387 depends on ARCH_XGENE && OF_GPIO
390 This driver supports the GPIO block within the APM X-Gene
391 Standby Domain. Say yes here to enable the GPIO functionality.
394 tristate "Xilinx GPIO support"
395 depends on OF_GPIO && (PPC || MICROBLAZE || ARCH_ZYNQ || X86)
397 Say yes here to support the Xilinx FPGA GPIO device
400 tristate "Xilinx Zynq GPIO support"
402 select GPIOLIB_IRQCHIP
404 Say yes here to support Xilinx Zynq GPIO controller.
407 bool "Xtensa GPIO32 support"
409 depends on HAVE_XTENSA_GPIO32
412 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
413 and EXPSTATE (output) ports
416 tristate "NEC VR4100 series General-purpose I/O Uint support"
417 depends on CPU_VR41XX
419 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
422 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
423 depends on PCI && X86
427 Say yes here to support GPIO interface on Intel Poulsbo SCH,
428 Intel Tunnel Creek processor, Intel Centerton processor or
429 Intel Quark X1000 SoC.
431 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
432 powered by the core power rail and are turned off during sleep
433 modes (S3 and higher). The remaining four GPIOs are powered by
434 the Intel SCH suspend power supply. These GPIOs remain
435 active during S3. The suspend powered GPIOs can be used to wake the
436 system from the Suspend-to-RAM state.
438 The Intel Tunnel Creek processor has 5 GPIOs powered by the
439 core power rail and 9 from suspend power supply.
441 The Intel Centerton processor has a total of 30 GPIO pins.
442 Twenty-one are powered by the core power rail and 9 from the
443 suspend power supply.
445 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
446 power well and 6 from the suspend power well.
449 tristate "Intel ICH GPIO"
450 depends on PCI && X86
454 Say yes here to support the GPIO functionality of a number of Intel
455 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
456 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
457 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
462 tristate "Intel IOP GPIO"
463 depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
465 Say yes here to support the GPIO functionality of a number of Intel
471 tristate "VIA VX855/VX875 GPIO"
476 Support access to the VX855/VX875 GPIO lines through the gpio library.
478 This driver provides common support for accessing the device,
479 additional drivers must be enabled in order to use the
480 functionality of the device.
483 bool "GE FPGA based GPIO"
487 Support for common GPIO functionality provided on some GE Single Board
490 This driver provides basic support (configure as input or output, read
491 and write pin state) for GPIO implemented in a number of GE single
494 config GPIO_LYNXPOINT
495 tristate "Intel Lynxpoint GPIO support"
496 depends on ACPI && X86
497 select GPIOLIB_IRQCHIP
499 driver for GPIO functionality on Intel Lynxpoint PCH chipset
500 Requires ACPI device enumeration code to set up a platform device.
503 tristate "Aeroflex Gaisler GRGPIO support"
508 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
509 VHDL IP core library.
513 select GENERIC_IRQ_CHIP
516 comment "I2C GPIO expanders:"
519 tristate "Wolfson Microelectronics Arizona class devices"
520 depends on MFD_ARIZONA
522 Support for GPIOs on Wolfson Arizona class devices.
524 config GPIO_CRYSTAL_COVE
525 tristate "GPIO support for Crystal Cove PMIC"
526 depends on INTEL_SOC_PMIC
527 select GPIOLIB_IRQCHIP
529 Support for GPIO pins on Crystal Cove PMIC.
531 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
534 This driver can also be built as a module. If so, the module will be
535 called gpio-crystalcove.
538 tristate "TI/National Semiconductor LP3943 GPIO expander"
539 depends on MFD_LP3943
541 GPIO driver for LP3943 MFD.
542 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
543 Open drain outputs are required for this usage.
546 tristate "Maxim MAX7300 GPIO expander"
550 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
553 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
556 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
557 Port Expanders. Each IO port on these chips has a fixed role of
558 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
559 Input and Output (designed by 'P'). The combinations are listed
562 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
563 max7322 (4I4O), max7323 (4P4O)
565 16 bits: max7324 (8I8O), max7325 (8P8O),
566 max7326 (4I12O), max7327 (4P12O)
568 Board setup code must specify the model to use, and the start
569 number for these GPIOs.
571 config GPIO_MAX732X_IRQ
572 bool "Interrupt controller support for MAX732x"
573 depends on GPIO_MAX732X=y
574 select GPIOLIB_IRQCHIP
576 Say yes here to enable the max732x to be used as an interrupt
577 controller. It requires the driver to be built in the kernel.
579 config GPIO_MC9S08DZ60
580 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
581 depends on I2C=y && MACH_MX35_3DS
583 Select this to enable the MC9S08DZ60 GPIO driver
586 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
589 Say yes here to provide access to several register-oriented
590 SMBus I/O expanders, made mostly by NXP or TI. Compatible
593 4 bits: pca9536, pca9537
595 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
596 pca9556, pca9557, pca9574, tca6408, xra1202
598 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
603 40 bits: pca9505, pca9698
605 config GPIO_PCA953X_IRQ
606 bool "Interrupt controller support for PCA953x"
607 depends on GPIO_PCA953X=y
608 select GPIOLIB_IRQCHIP
610 Say yes here to enable the pca953x to be used as an interrupt
611 controller. It requires the driver to be built in the kernel.
614 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
616 select GPIOLIB_IRQCHIP
619 Say yes here to provide access to most "quasi-bidirectional" I2C
620 GPIO expanders used for additional digital outputs or inputs.
621 Most of these parts are from NXP, though TI is a second source for
622 some of them. Compatible models include:
624 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
625 pca9670, pca9672, pca9674, pca9674a,
628 16 bits: pcf8575, pcf8575c, pca8575,
629 pca9671, pca9673, pca9675
631 Your board setup code will need to declare the expanders in
632 use, and assign numbers to the GPIOs they expose. Those GPIOs
633 can then be used from drivers and other kernel code, just like
634 other GPIOs, but only accessible from task contexts.
636 This driver provides an in-kernel interface to those GPIOs using
637 platform-neutral GPIO calls.
640 bool "RICOH RC5T583 GPIO"
641 depends on MFD_RC5T583
643 Select this option to enable GPIO driver for the Ricoh RC5T583
645 This driver provides the support for driving/reading the gpio pins
646 of RC5T583 device through standard gpio library.
649 bool "Semtech SX150x I2C GPIO expander"
651 select GPIOLIB_IRQCHIP
654 Say yes here to provide support for Semtech SX150-series I2C
655 GPIO expanders. Compatible models include:
664 select GPIOLIB_IRQCHIP
666 This enables support for the GPIOs found on the STMPE I/O
670 bool "XWAY STP GPIOs"
673 This enables support for the Serial To Parallel (STP) unit found on
674 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
675 that can be up to 24 bit. This peripheral is aimed at driving leds.
676 Some of the gpios/leds can be auto updated by the soc with dsl and
681 depends on MFD_TC3589X
682 select GPIOLIB_IRQCHIP
684 This enables support for the GPIOs found on the TC3589X
688 tristate "TI TPS65912 GPIO"
689 depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
691 This driver supports TPS65912 gpio chip
694 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
695 depends on TWL4030_CORE
697 Say yes here to access the GPIO signals of various multi-function
698 power management chips from Texas Instruments.
701 tristate "TWL6040 GPO"
702 depends on TWL6040_CORE
704 Say yes here to access the GPO signals of twl6040
705 audio chip from Texas Instruments.
708 tristate "WM831x GPIOs"
709 depends on MFD_WM831X
711 Say yes here to access the GPIO signals of WM831x power management
712 chips from Wolfson Microelectronics.
715 tristate "WM8350 GPIOs"
716 depends on MFD_WM8350
718 Say yes here to access the GPIO signals of WM8350 power management
719 chips from Wolfson Microelectronics.
722 tristate "WM8994 GPIOs"
723 depends on MFD_WM8994
725 Say yes here to access the GPIO signals of WM8994 audio hub
726 CODECs from Wolfson Microelectronics.
729 tristate "GPIO Support for ADP5520 PMIC"
730 depends on PMIC_ADP5520
732 This option enables support for on-chip GPIO found
733 on Analog Devices ADP5520 PMICs.
736 tristate "ADP5588 I2C GPIO expander"
739 This option enables support for 18 GPIOs found
740 on Analog Devices ADP5588 GPIO Expanders.
742 config GPIO_ADP5588_IRQ
743 bool "Interrupt controller support for ADP5588"
744 depends on GPIO_ADP5588=y
746 Say yes here to enable the adp5588 to be used as an interrupt
747 controller. It requires the driver to be built in the kernel.
750 tristate "Avionic Design N-bit GPIO expander"
751 depends on I2C && OF_GPIO
752 select GPIOLIB_IRQCHIP
754 This option enables support for N GPIOs found on Avionic Design
755 I2C GPIO expanders. The register space will be extended by powers
756 of two, so the controller will need to accommodate for that. For
757 example: if a controller provides 48 pins, 6 registers will be
758 enough to represent all pins, but the driver will assume a
759 register layout for 64 pins (8 registers).
761 comment "PCI GPIO expanders:"
764 tristate "AMD CS5535/CS5536 GPIO support"
765 depends on MFD_CS5535
767 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
768 can be used for quite a number of things. The CS5535/6 is found on
769 AMD Geode and Lemote Yeeloong devices.
774 tristate "BT8XX GPIO abuser"
775 depends on PCI && VIDEO_BT848=n
777 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
778 as a cheap PCI GPIO card.
780 This chip can be found on Miro, Hauppauge and STB TV-cards.
782 The card needs to be physically altered for using it as a
783 GPIO card. For more information on how to build a GPIO card
784 from a BT8xx TV card, see the documentation file at
785 Documentation/bt8xxgpio.txt
790 tristate "AMD 8111 GPIO driver"
793 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
795 Note, that usually system firmware/ACPI handles GPIO pins on their
796 own and users might easily break their systems with uncarefull usage
801 config GPIO_INTEL_MID
802 bool "Intel Mid GPIO support"
803 depends on PCI && X86
804 select GPIOLIB_IRQCHIP
806 Say Y here to support Intel Mid GPIO.
809 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
810 depends on PCI && (X86_32 || COMPILE_TEST)
811 select GENERIC_IRQ_CHIP
813 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
814 which is an IOH(Input/Output Hub) for x86 embedded processor.
815 This driver can access PCH GPIO device.
817 This driver also can be used for LAPIS Semiconductor IOH(Input/
818 Output Hub), ML7223 and ML7831.
819 ML7223 IOH is for MP(Media Phone) use.
820 ML7831 IOH is for general purpose use.
821 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
822 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
825 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
827 select GENERIC_IRQ_CHIP
829 ML7213 is companion chip for Intel Atom E6xx series.
830 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
831 Hub) which is for IVI(In-Vehicle Infotainment) use.
832 This driver can access the IOH's GPIO device.
834 config GPIO_SODAVILLE
835 bool "Intel Sodaville GPIO support"
836 depends on X86 && PCI && OF
838 select GENERIC_IRQ_CHIP
840 Say Y here to support Intel Sodaville GPIO.
842 config GPIO_TIMBERDALE
843 bool "Support for timberdale GPIO IP"
844 depends on MFD_TIMBERDALE
846 Add support for the GPIO IP in the timberdale FPGA.
849 tristate "RDC R-321x GPIO support"
854 Support for the RDC R321x SoC GPIOs over southbridge
855 PCI configuration space.
857 comment "SPI GPIO expanders:"
860 tristate "Maxim MAX7301 GPIO expander"
861 depends on SPI_MASTER
864 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
867 tristate "Microchip MCP23xxx I/O expander"
868 depends on (SPI_MASTER && !I2C) || I2C
870 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
872 This provides a GPIO interface supporting inputs and outputs.
873 The I2C versions of the chips can be used as interrupt-controller.
876 tristate "Freescale MC33880 high-side/low-side switch"
877 depends on SPI_MASTER
879 SPI driver for Freescale MC33880 high-side/low-side switch.
880 This provides GPIO interface supporting inputs and outputs.
883 tristate "74x164 serial-in/parallel-out 8-bits shift register"
884 depends on SPI_MASTER && OF
886 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
887 shift registers. This driver can be used to provide access
888 to more gpio outputs.
890 comment "AC97 GPIO expanders:"
893 tristate "Philips UCB1400 GPIO"
894 depends on UCB1400_CORE
896 This enables support for the Philips UCB1400 GPIO pins.
897 The UCB1400 is an AC97 audio codec.
899 comment "LPC GPIO expanders:"
902 tristate "Kontron ETX / COMexpress GPIO"
903 depends on MFD_KEMPLD
905 This enables support for the PLD GPIO interface on some Kontron ETX
906 and COMexpress (ETXexpress) modules.
908 This driver can also be built as a module. If so, the module will be
911 comment "MODULbus GPIO expanders:"
914 tristate "Janz VMOD-TTL Digital IO Module"
915 depends on MFD_JANZ_CMODIO
917 This enables support for the Janz VMOD-TTL Digital IO module.
918 This driver provides support for driving the pins in output
919 mode only. Input mode is not supported.
922 bool "TI PALMAS series PMICs GPIO"
923 depends on MFD_PALMAS
925 Select this option to enable GPIO driver for the TI PALMAS
930 depends on MFD_TPS6586X
932 Select this option to enable GPIO driver for the TPS6586X
937 depends on MFD_TPS65910
939 Select this option to enable GPIO driver for the TPS65910
943 bool "Intel MSIC mixed signal gpio support"
944 depends on MFD_INTEL_MSIC
946 Enable support for GPIO on intel MSIC controllers found in
950 bool "Broadcom Kona GPIO"
951 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
953 Turn on GPIO support for Broadcom "Kona" chips.
955 comment "USB GPIO expanders:"
957 config GPIO_VIPERBOARD
958 tristate "Viperboard GPIO a & b support"
959 depends on MFD_VIPERBOARD && USB
961 Say yes here to access the GPIO signals of Nano River
962 Technologies Viperboard. There are two GPIO chips on the
963 board: gpioa and gpiob.
964 See viperboard API specification and Nano
965 River Tech's viperboard.h for detailed meaning
966 of the module parameters.
969 tristate "Diolan DLN2 GPIO support"
971 select GPIOLIB_IRQCHIP
974 Select this option to enable GPIO driver for the Diolan DLN2
977 This driver can also be built as a module. If so, the module
978 will be called gpio-dln2.