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
93 # This symbol is selected by both I2C and SPI expanders
97 menu "Memory mapped GPIO drivers"
100 tristate "GPIO driver for 74xx-ICs with MMIO access"
104 Say yes here to support GPIO functionality for 74xx-compatible ICs
105 with MMIO access. Compatible models include:
106 1 bit: 741G125 (Input), 741G74 (Output)
107 2 bits: 742G125 (Input), 7474 (Output)
108 4 bits: 74125 (Input), 74175 (Output)
109 6 bits: 74365 (Input), 74174 (Output)
110 8 bits: 74244 (Input), 74273 (Output)
111 16 bits: 741624 (Input), 7416374 (Output)
114 tristate "Altera GPIO"
116 select GPIOLIB_IRQCHIP
118 Say Y or M here to build support for the Altera PIO device.
120 If driver is built as a module it will be called gpio-altera.
123 tristate "AMD Promontory GPIO support"
126 driver for GPIO functionality on Promontory IOHub
127 Require ACPI ASL code to enumerate as a platform device.
130 tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
132 depends on ATH79 || COMPILE_TEST
134 select GPIOLIB_IRQCHIP
136 Select this option to enable GPIO driver for
137 Atheros AR71XX/AR724X/AR913X SoC devices.
140 bool "Broadcom Kona GPIO"
141 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
143 Turn on GPIO support for Broadcom "Kona" chips.
146 tristate "BRCMSTB GPIO support"
147 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
148 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
150 select GPIOLIB_IRQCHIP
152 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
155 tristate "CLPS711X GPIO support"
156 depends on ARCH_CLPS711X || COMPILE_TEST
159 Say yes here to support GPIO on CLPS711X SoCs.
162 bool "TI Davinci/Keystone GPIO support"
163 default y if ARCH_DAVINCI
164 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
166 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
169 tristate "Synopsys DesignWare APB GPIO driver"
171 select GENERIC_IRQ_CHIP
173 Say Y or M here to build support for the Synopsys DesignWare APB
177 tristate "Emma Mobile GPIO"
178 depends on ARM && OF_GPIO
180 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
184 depends on ARCH_EP93XX
188 bool "Axis ETRAX FS General I/O"
189 depends on CRIS || COMPILE_TEST
192 select GPIOLIB_IRQCHIP
194 Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.
197 bool "GE FPGA based GPIO"
201 Support for common GPIO functionality provided on some GE Single Board
204 This driver provides basic support (configure as input or output, read
205 and write pin state) for GPIO implemented in a number of GE single
208 config GPIO_GENERIC_PLATFORM
209 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
212 Say yes here to support basic platform_device memory-mapped GPIO controllers.
215 tristate "Aeroflex Gaisler GRGPIO support"
220 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
221 VHDL IP core library.
224 tristate "Intel ICH GPIO"
225 depends on PCI && X86
229 Say yes here to support the GPIO functionality of a number of Intel
230 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
231 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
232 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
237 tristate "Intel IOP GPIO"
238 depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
240 Say yes here to support the GPIO functionality of a number of Intel
246 bool "Loongson-2/3 GPIO support"
247 depends on CPU_LOONGSON2 || CPU_LOONGSON3
249 driver for GPIO functionality on Loongson-2F/3A/3B processors.
252 bool "NXP LPC18XX/43XX GPIO support"
253 default y if ARCH_LPC18XX
254 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
256 Select this option to enable GPIO driver for
257 NXP LPC18XX/43XX devices.
259 config GPIO_LYNXPOINT
260 tristate "Intel Lynxpoint GPIO support"
261 depends on ACPI && X86
262 select GPIOLIB_IRQCHIP
264 driver for GPIO functionality on Intel Lynxpoint PCH chipset
265 Requires ACPI device enumeration code to set up a platform device.
268 bool "GPIO support for Fujitsu MB86S7x Platforms"
269 depends on ARCH_MB86S7X || COMPILE_TEST
271 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
274 tristate "MEN 16Z127 GPIO support"
278 Say yes here to support the MEN 16Z127 GPIO Controller
280 config GPIO_MM_LANTIQ
281 bool "Lantiq Memory mapped GPIOs"
282 depends on LANTIQ && SOC_XWAY
284 This enables support for memory mapped GPIOs on the External Bus Unit
285 (EBU) found on Lantiq SoCs. The gpios are output only as they are
286 created by attaching a 16bit latch to the bus.
289 bool "MOXART GPIO support"
290 depends on ARCH_MOXART || COMPILE_TEST
293 Select this option to enable GPIO driver for
294 MOXA ART SoC devices.
298 depends on PPC_MPC52xx
301 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
302 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
303 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
307 Say Y here if you're going to use hardware that connects to the
308 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
312 depends on PLAT_ORION
314 select GENERIC_IRQ_CHIP
320 select GENERIC_IRQ_CHIP
326 select GENERIC_IRQ_CHIP
329 tristate "Cavium OCTEON GPIO"
330 depends on GPIOLIB && CAVIUM_OCTEON_SOC
333 Say yes here to support the on-chip GPIO lines on the OCTEON
337 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
338 default y if ARCH_OMAP
340 select GENERIC_IRQ_CHIP
341 select GPIOLIB_IRQCHIP
343 Say yes here to enable GPIO support for TI OMAP SoCs.
346 bool "PrimeCell PL061 GPIO support"
349 select GPIOLIB_IRQCHIP
351 Say yes here to support the PrimeCell PL061 GPIO device
354 bool "PXA GPIO support"
355 depends on ARCH_PXA || ARCH_MMP
357 Say yes here to support the PXA GPIO device
360 tristate "Renesas R-Car GPIO"
361 depends on ARCH_RENESAS || COMPILE_TEST
362 select GPIOLIB_IRQCHIP
364 Say yes here to support GPIO on Renesas R-Car SoCs.
366 config GPIO_SPEAR_SPICS
367 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
368 depends on PLAT_SPEAR
369 select GENERIC_IRQ_CHIP
371 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
374 bool "STA2x11/ConneXt GPIO support"
375 depends on MFD_STA2X11
376 select GENERIC_IRQ_CHIP
378 Say yes here to support the STA2x11/ConneXt GPIO device.
379 The GPIO module has 128 GPIO pins with alternate functions.
382 bool "XWAY STP GPIOs"
385 This enables support for the Serial To Parallel (STP) unit found on
386 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
387 that can be up to 24 bit. This peripheral is aimed at driving leds.
388 Some of the gpios/leds can be auto updated by the soc with dsl and
392 tristate "GPIO based on SYSCON"
393 depends on MFD_SYSCON && OF
395 Say yes here to support GPIO functionality though SYSCON driver.
399 select GENERIC_IRQ_CHIP
403 tristate "TS-4800 DIO blocks and compatibles"
405 depends on SOC_IMX51 || COMPILE_TEST
408 This driver support TS-4800 FPGA GPIO controllers.
411 bool "Toumaz Xenif TZ1090 GPIO support"
412 depends on SOC_TZ1090
413 select GENERIC_IRQ_CHIP
416 Say yes here to support Toumaz Xenif TZ1090 GPIOs.
418 config GPIO_TZ1090_PDC
419 bool "Toumaz Xenif TZ1090 PDC GPIO support"
420 depends on SOC_TZ1090
423 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
427 depends on ARCH_MXC && SOC_VF610
428 select GPIOLIB_IRQCHIP
430 Say yes here to support Vybrid vf610 GPIOs.
433 tristate "NEC VR4100 series General-purpose I/O Uint support"
434 depends on CPU_VR41XX
436 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
439 tristate "VIA VX855/VX875 GPIO"
444 Support access to the VX855/VX875 GPIO lines through the gpio library.
446 This driver provides common support for accessing the device,
447 additional drivers must be enabled in order to use the
448 functionality of the device.
451 bool "APM X-Gene GPIO controller support"
452 depends on ARM64 && OF_GPIO
454 This driver is to support the GPIO block within the APM X-Gene SoC
455 platform's generic flash controller. The GPIO pins are muxed with
456 the generic flash controller's address and data pins. Say yes
457 here to enable the GFC GPIO functionality.
460 tristate "APM X-Gene GPIO standby controller support"
461 depends on ARCH_XGENE && OF_GPIO
463 select GPIOLIB_IRQCHIP
465 This driver supports the GPIO block within the APM X-Gene
466 Standby Domain. Say yes here to enable the GPIO functionality.
469 tristate "Xilinx GPIO support"
472 Say yes here to support the Xilinx FPGA GPIO device
475 tristate "Netlogic XLP GPIO support"
476 depends on CPU_XLP && OF_GPIO
477 select GPIOLIB_IRQCHIP
479 This driver provides support for GPIO interface on Netlogic XLP MIPS64
480 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
486 bool "Xtensa GPIO32 support"
488 depends on HAVE_XTENSA_GPIO32
491 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
492 and EXPSTATE (output) ports
495 bool "LSI ZEVIO SoC memory mapped GPIOs"
496 depends on ARM && OF_GPIO
498 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
501 tristate "Xilinx Zynq GPIO support"
502 depends on ARCH_ZYNQ || ARCH_ZYNQMP
503 select GPIOLIB_IRQCHIP
505 Say yes here to support Xilinx Zynq GPIO controller.
508 bool "ZTE ZX GPIO support"
509 select GPIOLIB_IRQCHIP
511 Say yes here to support the GPIO device on ZTE ZX SoCs.
515 menu "Port-mapped I/O GPIO drivers"
516 depends on X86 # Unconditional I/O space access
518 config GPIO_104_DIO_48E
519 tristate "ACCES 104-DIO-48E GPIO support"
520 select GPIOLIB_IRQCHIP
522 Enables GPIO support for the ACCES 104-DIO-48E family. The base port
523 address for the device may be configured via the dio_48e_base module
524 parameter. The interrupt line number for the device may be configured
525 via the dio_48e_irq module parameter.
527 config GPIO_104_IDIO_16
528 tristate "ACCES 104-IDIO-16 GPIO support"
529 select GPIOLIB_IRQCHIP
531 Enables GPIO support for the ACCES 104-IDIO-16 family. The base port
532 address for the device may be set via the idio_16_base module
533 parameter. The interrupt line number for the device may be set via the
534 idio_16_irq module parameter.
536 config GPIO_104_IDI_48
537 tristate "ACCES 104-IDI-48 GPIO support"
538 select GPIOLIB_IRQCHIP
540 Enables GPIO support for the ACCES 104-IDI-48 family. The base port
541 address for the device may be configured via the idi_48_base module
542 parameter. The interrupt line number for the device may be configured
543 via the idi_48_irq module parameter.
546 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
548 This option enables support for GPIOs found on Fintek Super-I/O
549 chips F71869, F71869A, F71882FG, F71889F and F81866.
551 To compile this driver as a module, choose M here: the module will
552 be called f7188x-gpio.
555 tristate "IT87xx GPIO support"
557 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
559 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
560 supports the IT8761E Super I/O chip as well.
562 To compile this driver as a module, choose M here: the module will
566 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
571 Say yes here to support GPIO interface on Intel Poulsbo SCH,
572 Intel Tunnel Creek processor, Intel Centerton processor or
573 Intel Quark X1000 SoC.
575 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
576 powered by the core power rail and are turned off during sleep
577 modes (S3 and higher). The remaining four GPIOs are powered by
578 the Intel SCH suspend power supply. These GPIOs remain
579 active during S3. The suspend powered GPIOs can be used to wake the
580 system from the Suspend-to-RAM state.
582 The Intel Tunnel Creek processor has 5 GPIOs powered by the
583 core power rail and 9 from suspend power supply.
585 The Intel Centerton processor has a total of 30 GPIO pins.
586 Twenty-one are powered by the core power rail and 9 from the
587 suspend power supply.
589 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
590 power well and 6 from the suspend power well.
593 tristate "SMSC SCH311x SuperI/O GPIO"
595 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
596 SCH3116 "Super I/O" chipsets.
598 To compile this driver as a module, choose M here: the module will
599 be called gpio-sch311x.
602 tristate "TS-5500 DIO blocks and compatibles"
603 depends on TS5500 || COMPILE_TEST
605 This driver supports Digital I/O exposed by pin blocks found on some
606 Technologic Systems platforms. It includes, but is not limited to, 3
607 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
611 tristate "WinSystems WS16C48 GPIO support"
612 select GPIOLIB_IRQCHIP
614 Enables GPIO support for the WinSystems WS16C48. The base port address
615 for the device may be configured via the ws16c48_base module
616 parameter. The interrupt line number for the device may be configured
617 via the ws16c48_irq module parameter.
621 menu "I2C GPIO expanders"
625 tristate "ADP5588 I2C GPIO expander"
627 This option enables support for 18 GPIOs found
628 on Analog Devices ADP5588 GPIO Expanders.
630 config GPIO_ADP5588_IRQ
631 bool "Interrupt controller support for ADP5588"
632 depends on GPIO_ADP5588=y
634 Say yes here to enable the adp5588 to be used as an interrupt
635 controller. It requires the driver to be built in the kernel.
638 tristate "Avionic Design N-bit GPIO expander"
640 select GPIOLIB_IRQCHIP
642 This option enables support for N GPIOs found on Avionic Design
643 I2C GPIO expanders. The register space will be extended by powers
644 of two, so the controller will need to accommodate for that. For
645 example: if a controller provides 48 pins, 6 registers will be
646 enough to represent all pins, but the driver will assume a
647 register layout for 64 pins (8 registers).
650 tristate "Maxim MAX7300 GPIO expander"
653 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
656 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
658 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
659 Port Expanders. Each IO port on these chips has a fixed role of
660 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
661 Input and Output (designed by 'P'). The combinations are listed
664 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
665 max7322 (4I4O), max7323 (4P4O)
667 16 bits: max7324 (8I8O), max7325 (8P8O),
668 max7326 (4I12O), max7327 (4P12O)
670 Board setup code must specify the model to use, and the start
671 number for these GPIOs.
673 config GPIO_MAX732X_IRQ
674 bool "Interrupt controller support for MAX732x"
675 depends on GPIO_MAX732X=y
676 select GPIOLIB_IRQCHIP
678 Say yes here to enable the max732x to be used as an interrupt
679 controller. It requires the driver to be built in the kernel.
681 config GPIO_MC9S08DZ60
682 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
683 depends on I2C=y && MACH_MX35_3DS
685 Select this to enable the MC9S08DZ60 GPIO driver
688 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
690 Say yes here to provide access to several register-oriented
691 SMBus I/O expanders, made mostly by NXP or TI. Compatible
694 4 bits: pca9536, pca9537
696 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
697 pca9556, pca9557, pca9574, tca6408, xra1202
699 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
704 40 bits: pca9505, pca9698
706 config GPIO_PCA953X_IRQ
707 bool "Interrupt controller support for PCA953x"
708 depends on GPIO_PCA953X=y
709 select GPIOLIB_IRQCHIP
711 Say yes here to enable the pca953x to be used as an interrupt
712 controller. It requires the driver to be built in the kernel.
715 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
716 select GPIOLIB_IRQCHIP
719 Say yes here to provide access to most "quasi-bidirectional" I2C
720 GPIO expanders used for additional digital outputs or inputs.
721 Most of these parts are from NXP, though TI is a second source for
722 some of them. Compatible models include:
724 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
725 pca9670, pca9672, pca9674, pca9674a,
728 16 bits: pcf8575, pcf8575c, pca8575,
729 pca9671, pca9673, pca9675
731 Your board setup code will need to declare the expanders in
732 use, and assign numbers to the GPIOs they expose. Those GPIOs
733 can then be used from drivers and other kernel code, just like
734 other GPIOs, but only accessible from task contexts.
736 This driver provides an in-kernel interface to those GPIOs using
737 platform-neutral GPIO calls.
740 bool "Semtech SX150x I2C GPIO expander"
742 select GPIOLIB_IRQCHIP
745 Say yes here to provide support for Semtech SX150-series I2C
746 GPIO expanders. Compatible models include:
752 tristate "TPIC2810 8-Bit I2C GPO expander"
754 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
756 To compile this driver as a module, choose M here: the module will
757 be called gpio-tpic2810.
761 menu "MFD GPIO expanders"
764 tristate "GPIO Support for ADP5520 PMIC"
765 depends on PMIC_ADP5520
767 This option enables support for on-chip GPIO found
768 on Analog Devices ADP5520 PMICs.
771 tristate "Wolfson Microelectronics Arizona class devices"
772 depends on MFD_ARIZONA
774 Support for GPIOs on Wolfson Arizona class devices.
776 config GPIO_CRYSTAL_COVE
777 tristate "GPIO support for Crystal Cove PMIC"
778 depends on INTEL_SOC_PMIC
779 select GPIOLIB_IRQCHIP
781 Support for GPIO pins on Crystal Cove PMIC.
783 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
786 This driver can also be built as a module. If so, the module will be
787 called gpio-crystalcove.
790 tristate "AMD CS5535/CS5536 GPIO support"
791 depends on MFD_CS5535
793 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
794 can be used for quite a number of things. The CS5535/6 is found on
795 AMD Geode and Lemote Yeeloong devices.
800 tristate "Dialog DA9052 GPIO"
801 depends on PMIC_DA9052
803 Say yes here to enable the GPIO driver for the DA9052 chip.
806 tristate "Dialog Semiconductor DA9055 GPIO"
807 depends on MFD_DA9055
809 Say yes here to enable the GPIO driver for the DA9055 chip.
811 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
812 be controller by this driver.
814 If driver is built as a module it will be called gpio-da9055.
817 tristate "Diolan DLN2 GPIO support"
819 select GPIOLIB_IRQCHIP
822 Select this option to enable GPIO driver for the Diolan DLN2
825 This driver can also be built as a module. If so, the module
826 will be called gpio-dln2.
829 tristate "Janz VMOD-TTL Digital IO Module"
830 depends on MFD_JANZ_CMODIO
832 This enables support for the Janz VMOD-TTL Digital IO module.
833 This driver provides support for driving the pins in output
834 mode only. Input mode is not supported.
837 tristate "Kontron ETX / COMexpress GPIO"
838 depends on MFD_KEMPLD
840 This enables support for the PLD GPIO interface on some Kontron ETX
841 and COMexpress (ETXexpress) modules.
843 This driver can also be built as a module. If so, the module will be
847 tristate "TI/National Semiconductor LP3943 GPIO expander"
848 depends on MFD_LP3943
850 GPIO driver for LP3943 MFD.
851 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
852 Open drain outputs are required for this usage.
855 bool "Intel MSIC mixed signal gpio support"
856 depends on MFD_INTEL_MSIC
858 Enable support for GPIO on intel MSIC controllers found in
862 bool "TI PALMAS series PMICs GPIO"
863 depends on MFD_PALMAS
865 Select this option to enable GPIO driver for the TI PALMAS
869 bool "RICOH RC5T583 GPIO"
870 depends on MFD_RC5T583
872 Select this option to enable GPIO driver for the Ricoh RC5T583
874 This driver provides the support for driving/reading the gpio pins
875 of RC5T583 device through standard gpio library.
881 select GPIOLIB_IRQCHIP
883 This enables support for the GPIOs found on the STMPE I/O
888 depends on MFD_TC3589X
890 select GPIOLIB_IRQCHIP
892 This enables support for the GPIOs found on the TC3589X
895 config GPIO_TIMBERDALE
896 bool "Support for timberdale GPIO IP"
897 depends on MFD_TIMBERDALE
899 Add support for the GPIO IP in the timberdale FPGA.
902 tristate "TI TPS65086 GPO"
903 depends on MFD_TPS65086
905 This driver supports the GPO on TI TPS65086x PMICs.
908 tristate "TPS65218 GPIO"
909 depends on MFD_TPS65218
911 Select this option to enable GPIO driver for the TPS65218
916 depends on MFD_TPS6586X
918 Select this option to enable GPIO driver for the TPS6586X
923 depends on MFD_TPS65910
925 Select this option to enable GPIO driver for the TPS65910
929 tristate "TI TPS65912 GPIO"
930 depends on MFD_TPS65912
932 This driver supports TPS65912 gpio chip
935 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
936 depends on TWL4030_CORE
938 Say yes here to access the GPIO signals of various multi-function
939 power management chips from Texas Instruments.
942 tristate "TWL6040 GPO"
943 depends on TWL6040_CORE
945 Say yes here to access the GPO signals of twl6040
946 audio chip from Texas Instruments.
949 tristate "Philips UCB1400 GPIO"
950 depends on UCB1400_CORE
952 This enables support for the Philips UCB1400 GPIO pins.
953 The UCB1400 is an AC97 audio codec.
956 tristate "WM831x GPIOs"
957 depends on MFD_WM831X
959 Say yes here to access the GPIO signals of WM831x power management
960 chips from Wolfson Microelectronics.
963 tristate "WM8350 GPIOs"
964 depends on MFD_WM8350
966 Say yes here to access the GPIO signals of WM8350 power management
967 chips from Wolfson Microelectronics.
970 tristate "WM8994 GPIOs"
971 depends on MFD_WM8994
973 Say yes here to access the GPIO signals of WM8994 audio hub
974 CODECs from Wolfson Microelectronics.
978 menu "PCI GPIO expanders"
982 tristate "AMD 8111 GPIO driver"
984 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
986 Note, that usually system firmware/ACPI handles GPIO pins on their
987 own and users might easily break their systems with uncarefull usage
993 tristate "BT8XX GPIO abuser"
994 depends on VIDEO_BT848=n
996 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
997 as a cheap PCI GPIO card.
999 This chip can be found on Miro, Hauppauge and STB TV-cards.
1001 The card needs to be physically altered for using it as a
1002 GPIO card. For more information on how to build a GPIO card
1003 from a BT8xx TV card, see the documentation file at
1004 Documentation/bt8xxgpio.txt
1008 config GPIO_INTEL_MID
1009 bool "Intel Mid GPIO support"
1011 select GPIOLIB_IRQCHIP
1013 Say Y here to support Intel Mid GPIO.
1016 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1017 select GENERIC_IRQ_CHIP
1019 ML7213 is companion chip for Intel Atom E6xx series.
1020 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1021 Hub) which is for IVI(In-Vehicle Infotainment) use.
1022 This driver can access the IOH's GPIO device.
1025 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1026 depends on X86_32 || MIPS || COMPILE_TEST
1027 select GENERIC_IRQ_CHIP
1029 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1030 which is an IOH(Input/Output Hub) for x86 embedded processor.
1031 This driver can access PCH GPIO device.
1033 This driver also can be used for LAPIS Semiconductor IOH(Input/
1034 Output Hub), ML7223 and ML7831.
1035 ML7223 IOH is for MP(Media Phone) use.
1036 ML7831 IOH is for general purpose use.
1037 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1038 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1041 tristate "RDC R-321x GPIO support"
1045 Support for the RDC R321x SoC GPIOs over southbridge
1046 PCI configuration space.
1048 config GPIO_SODAVILLE
1049 bool "Intel Sodaville GPIO support"
1050 depends on X86 && OF
1052 select GENERIC_IRQ_CHIP
1054 Say Y here to support Intel Sodaville GPIO.
1058 menu "SPI GPIO expanders"
1059 depends on SPI_MASTER
1062 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1065 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1066 shift registers. This driver can be used to provide access
1067 to more gpio outputs.
1070 tristate "Maxim MAX7301 GPIO expander"
1073 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1076 tristate "Freescale MC33880 high-side/low-side switch"
1078 SPI driver for Freescale MC33880 high-side/low-side switch.
1079 This provides GPIO interface supporting inputs and outputs.
1082 tristate "Generic parallel-in/serial-out shift register"
1084 GPIO driver for SPI compatible parallel-in/serial-out shift
1085 registers. These are input only devices.
1089 menu "SPI or I2C GPIO expanders"
1090 depends on (SPI_MASTER && !I2C) || I2C
1092 config GPIO_MCP23S08
1093 tristate "Microchip MCP23xxx I/O expander"
1095 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
1097 This provides a GPIO interface supporting inputs and outputs.
1098 The I2C versions of the chips can be used as interrupt-controller.
1102 menu "USB GPIO expanders"
1105 config GPIO_VIPERBOARD
1106 tristate "Viperboard GPIO a & b support"
1107 depends on MFD_VIPERBOARD
1109 Say yes here to access the GPIO signals of Nano River
1110 Technologies Viperboard. There are two GPIO chips on the
1111 board: gpioa and gpiob.
1112 See viperboard API specification and Nano
1113 River Tech's viperboard.h for detailed meaning
1114 of the module parameters.