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.
52 depends on OF || COMPILE_TEST
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"
127 driver for GPIO functionality on Promontory IOHub
128 Require ACPI ASL code to enumerate as a platform device.
131 tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
133 depends on ATH79 || COMPILE_TEST
135 select GPIOLIB_IRQCHIP
137 Select this option to enable GPIO driver for
138 Atheros AR71XX/AR724X/AR913X SoC devices.
141 bool "Broadcom Kona GPIO"
142 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
144 Turn on GPIO support for Broadcom "Kona" chips.
147 tristate "BRCMSTB GPIO support"
148 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
149 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
151 select GPIOLIB_IRQCHIP
153 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
156 tristate "CLPS711X GPIO support"
157 depends on ARCH_CLPS711X || COMPILE_TEST
160 Say yes here to support GPIO on CLPS711X SoCs.
163 bool "TI Davinci/Keystone GPIO support"
164 default y if ARCH_DAVINCI
165 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
167 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
170 tristate "Synopsys DesignWare APB GPIO driver"
172 select GENERIC_IRQ_CHIP
174 Say Y or M here to build support for the Synopsys DesignWare APB
178 tristate "Emma Mobile GPIO"
179 depends on ARM && OF_GPIO
181 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
185 depends on ARCH_EP93XX
189 bool "Axis ETRAX FS General I/O"
190 depends on CRIS || COMPILE_TEST
193 select GPIOLIB_IRQCHIP
195 Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.
198 bool "GE FPGA based GPIO"
202 Support for common GPIO functionality provided on some GE Single Board
205 This driver provides basic support (configure as input or output, read
206 and write pin state) for GPIO implemented in a number of GE single
209 config GPIO_GENERIC_PLATFORM
210 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
213 Say yes here to support basic platform_device memory-mapped GPIO controllers.
216 tristate "Aeroflex Gaisler GRGPIO support"
221 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
222 VHDL IP core library.
225 tristate "Intel ICH GPIO"
226 depends on PCI && X86
230 Say yes here to support the GPIO functionality of a number of Intel
231 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
232 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
233 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
238 tristate "Intel IOP GPIO"
239 depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
241 Say yes here to support the GPIO functionality of a number of Intel
247 bool "Loongson-2/3 GPIO support"
248 depends on CPU_LOONGSON2 || CPU_LOONGSON3
250 driver for GPIO functionality on Loongson-2F/3A/3B processors.
253 bool "NXP LPC18XX/43XX GPIO support"
254 default y if ARCH_LPC18XX
255 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
257 Select this option to enable GPIO driver for
258 NXP LPC18XX/43XX devices.
260 config GPIO_LYNXPOINT
261 tristate "Intel Lynxpoint GPIO support"
262 depends on ACPI && X86
263 select GPIOLIB_IRQCHIP
265 driver for GPIO functionality on Intel Lynxpoint PCH chipset
266 Requires ACPI device enumeration code to set up a platform device.
269 bool "GPIO support for Fujitsu MB86S7x Platforms"
270 depends on ARCH_MB86S7X || COMPILE_TEST
272 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
275 tristate "MEN 16Z127 GPIO support"
279 Say yes here to support the MEN 16Z127 GPIO Controller
281 config GPIO_MM_LANTIQ
282 bool "Lantiq Memory mapped GPIOs"
283 depends on LANTIQ && SOC_XWAY
285 This enables support for memory mapped GPIOs on the External Bus Unit
286 (EBU) found on Lantiq SoCs. The gpios are output only as they are
287 created by attaching a 16bit latch to the bus.
290 bool "MOXART GPIO support"
291 depends on ARCH_MOXART || COMPILE_TEST
294 Select this option to enable GPIO driver for
295 MOXA ART SoC devices.
299 depends on PPC_MPC52xx
302 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
303 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
304 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
308 Say Y here if you're going to use hardware that connects to the
309 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
313 depends on PLAT_ORION
315 select GENERIC_IRQ_CHIP
321 select GENERIC_IRQ_CHIP
327 select GENERIC_IRQ_CHIP
330 tristate "Cavium OCTEON GPIO"
331 depends on GPIOLIB && CAVIUM_OCTEON_SOC
334 Say yes here to support the on-chip GPIO lines on the OCTEON
338 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
339 default y if ARCH_OMAP
341 select GENERIC_IRQ_CHIP
342 select GPIOLIB_IRQCHIP
344 Say yes here to enable GPIO support for TI OMAP SoCs.
347 bool "PrimeCell PL061 GPIO support"
350 select GPIOLIB_IRQCHIP
352 Say yes here to support the PrimeCell PL061 GPIO device
355 bool "PXA GPIO support"
356 depends on ARCH_PXA || ARCH_MMP
358 Say yes here to support the PXA GPIO device
361 tristate "Renesas R-Car GPIO"
362 depends on ARCH_RENESAS || COMPILE_TEST
363 select GPIOLIB_IRQCHIP
365 Say yes here to support GPIO on Renesas R-Car SoCs.
367 config GPIO_SPEAR_SPICS
368 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
369 depends on PLAT_SPEAR
370 select GENERIC_IRQ_CHIP
372 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
375 bool "STA2x11/ConneXt GPIO support"
376 depends on MFD_STA2X11
377 select GENERIC_IRQ_CHIP
379 Say yes here to support the STA2x11/ConneXt GPIO device.
380 The GPIO module has 128 GPIO pins with alternate functions.
383 bool "XWAY STP GPIOs"
386 This enables support for the Serial To Parallel (STP) unit found on
387 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
388 that can be up to 24 bit. This peripheral is aimed at driving leds.
389 Some of the gpios/leds can be auto updated by the soc with dsl and
393 tristate "GPIO based on SYSCON"
394 depends on MFD_SYSCON && OF
396 Say yes here to support GPIO functionality though SYSCON driver.
400 select GENERIC_IRQ_CHIP
404 tristate "TS-4800 DIO blocks and compatibles"
406 depends on SOC_IMX51 || COMPILE_TEST
409 This driver support TS-4800 FPGA GPIO controllers.
412 bool "Toumaz Xenif TZ1090 GPIO support"
413 depends on SOC_TZ1090
414 select GENERIC_IRQ_CHIP
417 Say yes here to support Toumaz Xenif TZ1090 GPIOs.
419 config GPIO_TZ1090_PDC
420 bool "Toumaz Xenif TZ1090 PDC GPIO support"
421 depends on SOC_TZ1090
424 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
428 depends on ARCH_MXC && SOC_VF610
429 select GPIOLIB_IRQCHIP
431 Say yes here to support Vybrid vf610 GPIOs.
434 tristate "NEC VR4100 series General-purpose I/O Uint support"
435 depends on CPU_VR41XX
437 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
440 tristate "VIA VX855/VX875 GPIO"
445 Support access to the VX855/VX875 GPIO lines through the gpio library.
447 This driver provides common support for accessing the device,
448 additional drivers must be enabled in order to use the
449 functionality of the device.
452 bool "APM X-Gene GPIO controller support"
453 depends on ARM64 && OF_GPIO
455 This driver is to support the GPIO block within the APM X-Gene SoC
456 platform's generic flash controller. The GPIO pins are muxed with
457 the generic flash controller's address and data pins. Say yes
458 here to enable the GFC GPIO functionality.
461 tristate "APM X-Gene GPIO standby controller support"
462 depends on ARCH_XGENE && OF_GPIO
464 select GPIOLIB_IRQCHIP
466 This driver supports the GPIO block within the APM X-Gene
467 Standby Domain. Say yes here to enable the GPIO functionality.
470 tristate "Xilinx GPIO support"
473 Say yes here to support the Xilinx FPGA GPIO device
476 tristate "Netlogic XLP GPIO support"
477 depends on OF_GPIO && (CPU_XLP || ARCH_VULCAN || COMPILE_TEST)
478 select GPIOLIB_IRQCHIP
480 This driver provides support for GPIO interface on Netlogic XLP MIPS64
481 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
487 bool "Xtensa GPIO32 support"
489 depends on HAVE_XTENSA_GPIO32
492 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
493 and EXPSTATE (output) ports
496 bool "LSI ZEVIO SoC memory mapped GPIOs"
497 depends on ARM && OF_GPIO
499 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
502 tristate "Xilinx Zynq GPIO support"
503 depends on ARCH_ZYNQ || ARCH_ZYNQMP
504 select GPIOLIB_IRQCHIP
506 Say yes here to support Xilinx Zynq GPIO controller.
509 bool "ZTE ZX GPIO support"
510 select GPIOLIB_IRQCHIP
512 Say yes here to support the GPIO device on ZTE ZX SoCs.
514 config GPIO_LOONGSON1
515 tristate "Loongson1 GPIO support"
516 depends on MACH_LOONGSON32
519 Say Y or M here to support GPIO on Loongson1 SoCs.
523 menu "Port-mapped I/O GPIO drivers"
524 depends on X86 # Unconditional I/O space access
526 config GPIO_104_DIO_48E
527 tristate "ACCES 104-DIO-48E GPIO support"
528 select GPIOLIB_IRQCHIP
530 Enables GPIO support for the ACCES 104-DIO-48E family. The base port
531 address for the device may be configured via the dio_48e_base module
532 parameter. The interrupt line number for the device may be configured
533 via the dio_48e_irq module parameter.
535 config GPIO_104_IDIO_16
536 tristate "ACCES 104-IDIO-16 GPIO support"
537 select GPIOLIB_IRQCHIP
539 Enables GPIO support for the ACCES 104-IDIO-16 family. The base port
540 address for the device may be set via the idio_16_base module
541 parameter. The interrupt line number for the device may be set via the
542 idio_16_irq module parameter.
544 config GPIO_104_IDI_48
545 tristate "ACCES 104-IDI-48 GPIO support"
546 select GPIOLIB_IRQCHIP
548 Enables GPIO support for the ACCES 104-IDI-48 family. The base port
549 address for the device may be configured via the idi_48_base module
550 parameter. The interrupt line number for the device may be configured
551 via the idi_48_irq module parameter.
554 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
556 This option enables support for GPIOs found on Fintek Super-I/O
557 chips F71869, F71869A, F71882FG, F71889F and F81866.
559 To compile this driver as a module, choose M here: the module will
560 be called f7188x-gpio.
563 tristate "IT87xx GPIO support"
565 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
567 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
568 supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
570 To compile this driver as a module, choose M here: the module will
574 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
579 Say yes here to support GPIO interface on Intel Poulsbo SCH,
580 Intel Tunnel Creek processor, Intel Centerton processor or
581 Intel Quark X1000 SoC.
583 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
584 powered by the core power rail and are turned off during sleep
585 modes (S3 and higher). The remaining four GPIOs are powered by
586 the Intel SCH suspend power supply. These GPIOs remain
587 active during S3. The suspend powered GPIOs can be used to wake the
588 system from the Suspend-to-RAM state.
590 The Intel Tunnel Creek processor has 5 GPIOs powered by the
591 core power rail and 9 from suspend power supply.
593 The Intel Centerton processor has a total of 30 GPIO pins.
594 Twenty-one are powered by the core power rail and 9 from the
595 suspend power supply.
597 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
598 power well and 6 from the suspend power well.
601 tristate "SMSC SCH311x SuperI/O GPIO"
603 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
604 SCH3116 "Super I/O" chipsets.
606 To compile this driver as a module, choose M here: the module will
607 be called gpio-sch311x.
610 tristate "TS-5500 DIO blocks and compatibles"
611 depends on TS5500 || COMPILE_TEST
613 This driver supports Digital I/O exposed by pin blocks found on some
614 Technologic Systems platforms. It includes, but is not limited to, 3
615 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
619 tristate "WinSystems WS16C48 GPIO support"
620 select GPIOLIB_IRQCHIP
622 Enables GPIO support for the WinSystems WS16C48. The base port address
623 for the device may be configured via the ws16c48_base module
624 parameter. The interrupt line number for the device may be configured
625 via the ws16c48_irq module parameter.
629 menu "I2C GPIO expanders"
633 tristate "ADP5588 I2C GPIO expander"
635 This option enables support for 18 GPIOs found
636 on Analog Devices ADP5588 GPIO Expanders.
638 config GPIO_ADP5588_IRQ
639 bool "Interrupt controller support for ADP5588"
640 depends on GPIO_ADP5588=y
642 Say yes here to enable the adp5588 to be used as an interrupt
643 controller. It requires the driver to be built in the kernel.
646 tristate "Avionic Design N-bit GPIO expander"
648 select GPIOLIB_IRQCHIP
650 This option enables support for N GPIOs found on Avionic Design
651 I2C GPIO expanders. The register space will be extended by powers
652 of two, so the controller will need to accommodate for that. For
653 example: if a controller provides 48 pins, 6 registers will be
654 enough to represent all pins, but the driver will assume a
655 register layout for 64 pins (8 registers).
658 tristate "Maxim MAX7300 GPIO expander"
661 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
664 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
666 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
667 Port Expanders. Each IO port on these chips has a fixed role of
668 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
669 Input and Output (designed by 'P'). The combinations are listed
672 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
673 max7322 (4I4O), max7323 (4P4O)
675 16 bits: max7324 (8I8O), max7325 (8P8O),
676 max7326 (4I12O), max7327 (4P12O)
678 Board setup code must specify the model to use, and the start
679 number for these GPIOs.
681 config GPIO_MAX732X_IRQ
682 bool "Interrupt controller support for MAX732x"
683 depends on GPIO_MAX732X=y
684 select GPIOLIB_IRQCHIP
686 Say yes here to enable the max732x to be used as an interrupt
687 controller. It requires the driver to be built in the kernel.
689 config GPIO_MC9S08DZ60
690 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
691 depends on I2C=y && MACH_MX35_3DS
693 Select this to enable the MC9S08DZ60 GPIO driver
696 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
698 Say yes here to provide access to several register-oriented
699 SMBus I/O expanders, made mostly by NXP or TI. Compatible
702 4 bits: pca9536, pca9537
704 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
705 pca9556, pca9557, pca9574, tca6408, xra1202
707 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
712 40 bits: pca9505, pca9698
714 config GPIO_PCA953X_IRQ
715 bool "Interrupt controller support for PCA953x"
716 depends on GPIO_PCA953X=y
717 select GPIOLIB_IRQCHIP
719 Say yes here to enable the pca953x to be used as an interrupt
720 controller. It requires the driver to be built in the kernel.
723 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
724 select GPIOLIB_IRQCHIP
727 Say yes here to provide access to most "quasi-bidirectional" I2C
728 GPIO expanders used for additional digital outputs or inputs.
729 Most of these parts are from NXP, though TI is a second source for
730 some of them. Compatible models include:
732 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
733 pca9670, pca9672, pca9674, pca9674a,
736 16 bits: pcf8575, pcf8575c, pca8575,
737 pca9671, pca9673, pca9675
739 Your board setup code will need to declare the expanders in
740 use, and assign numbers to the GPIOs they expose. Those GPIOs
741 can then be used from drivers and other kernel code, just like
742 other GPIOs, but only accessible from task contexts.
744 This driver provides an in-kernel interface to those GPIOs using
745 platform-neutral GPIO calls.
748 bool "Semtech SX150x I2C GPIO expander"
750 select GPIOLIB_IRQCHIP
753 Say yes here to provide support for Semtech SX150-series I2C
754 GPIO expanders. Compatible models include:
760 tristate "TPIC2810 8-Bit I2C GPO expander"
762 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
764 To compile this driver as a module, choose M here: the module will
765 be called gpio-tpic2810.
769 menu "MFD GPIO expanders"
772 tristate "GPIO Support for ADP5520 PMIC"
773 depends on PMIC_ADP5520
775 This option enables support for on-chip GPIO found
776 on Analog Devices ADP5520 PMICs.
779 tristate "Wolfson Microelectronics Arizona class devices"
780 depends on MFD_ARIZONA
782 Support for GPIOs on Wolfson Arizona class devices.
784 config GPIO_CRYSTAL_COVE
785 tristate "GPIO support for Crystal Cove PMIC"
786 depends on INTEL_SOC_PMIC
787 select GPIOLIB_IRQCHIP
789 Support for GPIO pins on Crystal Cove PMIC.
791 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
794 This driver can also be built as a module. If so, the module will be
795 called gpio-crystalcove.
798 tristate "AMD CS5535/CS5536 GPIO support"
799 depends on MFD_CS5535
801 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
802 can be used for quite a number of things. The CS5535/6 is found on
803 AMD Geode and Lemote Yeeloong devices.
808 tristate "Dialog DA9052 GPIO"
809 depends on PMIC_DA9052
811 Say yes here to enable the GPIO driver for the DA9052 chip.
814 tristate "Dialog Semiconductor DA9055 GPIO"
815 depends on MFD_DA9055
817 Say yes here to enable the GPIO driver for the DA9055 chip.
819 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
820 be controller by this driver.
822 If driver is built as a module it will be called gpio-da9055.
825 tristate "Diolan DLN2 GPIO support"
827 select GPIOLIB_IRQCHIP
830 Select this option to enable GPIO driver for the Diolan DLN2
833 This driver can also be built as a module. If so, the module
834 will be called gpio-dln2.
837 tristate "Janz VMOD-TTL Digital IO Module"
838 depends on MFD_JANZ_CMODIO
840 This enables support for the Janz VMOD-TTL Digital IO module.
841 This driver provides support for driving the pins in output
842 mode only. Input mode is not supported.
845 tristate "Kontron ETX / COMexpress GPIO"
846 depends on MFD_KEMPLD
848 This enables support for the PLD GPIO interface on some Kontron ETX
849 and COMexpress (ETXexpress) modules.
851 This driver can also be built as a module. If so, the module will be
855 tristate "TI/National Semiconductor LP3943 GPIO expander"
856 depends on MFD_LP3943
858 GPIO driver for LP3943 MFD.
859 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
860 Open drain outputs are required for this usage.
863 bool "Intel MSIC mixed signal gpio support"
864 depends on MFD_INTEL_MSIC
866 Enable support for GPIO on intel MSIC controllers found in
870 bool "TI PALMAS series PMICs GPIO"
871 depends on MFD_PALMAS
873 Select this option to enable GPIO driver for the TI PALMAS
877 bool "RICOH RC5T583 GPIO"
878 depends on MFD_RC5T583
880 Select this option to enable GPIO driver for the Ricoh RC5T583
882 This driver provides the support for driving/reading the gpio pins
883 of RC5T583 device through standard gpio library.
889 select GPIOLIB_IRQCHIP
891 This enables support for the GPIOs found on the STMPE I/O
896 depends on MFD_TC3589X
898 select GPIOLIB_IRQCHIP
900 This enables support for the GPIOs found on the TC3589X
903 config GPIO_TIMBERDALE
904 bool "Support for timberdale GPIO IP"
905 depends on MFD_TIMBERDALE
907 Add support for the GPIO IP in the timberdale FPGA.
910 tristate "TI TPS65086 GPO"
911 depends on MFD_TPS65086
913 This driver supports the GPO on TI TPS65086x PMICs.
916 tristate "TPS65218 GPIO"
917 depends on MFD_TPS65218
919 Select this option to enable GPIO driver for the TPS65218
924 depends on MFD_TPS6586X
926 Select this option to enable GPIO driver for the TPS6586X
931 depends on MFD_TPS65910
933 Select this option to enable GPIO driver for the TPS65910
937 tristate "TI TPS65912 GPIO"
938 depends on MFD_TPS65912
940 This driver supports TPS65912 gpio chip
943 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
944 depends on TWL4030_CORE
946 Say yes here to access the GPIO signals of various multi-function
947 power management chips from Texas Instruments.
950 tristate "TWL6040 GPO"
951 depends on TWL6040_CORE
953 Say yes here to access the GPO signals of twl6040
954 audio chip from Texas Instruments.
957 tristate "Philips UCB1400 GPIO"
958 depends on UCB1400_CORE
960 This enables support for the Philips UCB1400 GPIO pins.
961 The UCB1400 is an AC97 audio codec.
964 tristate "WM831x GPIOs"
965 depends on MFD_WM831X
967 Say yes here to access the GPIO signals of WM831x power management
968 chips from Wolfson Microelectronics.
971 tristate "WM8350 GPIOs"
972 depends on MFD_WM8350
974 Say yes here to access the GPIO signals of WM8350 power management
975 chips from Wolfson Microelectronics.
978 tristate "WM8994 GPIOs"
979 depends on MFD_WM8994
981 Say yes here to access the GPIO signals of WM8994 audio hub
982 CODECs from Wolfson Microelectronics.
986 menu "PCI GPIO expanders"
990 tristate "AMD 8111 GPIO driver"
992 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
994 Note, that usually system firmware/ACPI handles GPIO pins on their
995 own and users might easily break their systems with uncarefull usage
1001 tristate "BT8XX GPIO abuser"
1002 depends on VIDEO_BT848=n
1004 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1005 as a cheap PCI GPIO card.
1007 This chip can be found on Miro, Hauppauge and STB TV-cards.
1009 The card needs to be physically altered for using it as a
1010 GPIO card. For more information on how to build a GPIO card
1011 from a BT8xx TV card, see the documentation file at
1012 Documentation/bt8xxgpio.txt
1016 config GPIO_INTEL_MID
1017 bool "Intel Mid GPIO support"
1019 select GPIOLIB_IRQCHIP
1021 Say Y here to support Intel Mid GPIO.
1024 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1025 select GENERIC_IRQ_CHIP
1027 ML7213 is companion chip for Intel Atom E6xx series.
1028 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1029 Hub) which is for IVI(In-Vehicle Infotainment) use.
1030 This driver can access the IOH's GPIO device.
1033 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1034 depends on X86_32 || MIPS || COMPILE_TEST
1035 select GENERIC_IRQ_CHIP
1037 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1038 which is an IOH(Input/Output Hub) for x86 embedded processor.
1039 This driver can access PCH GPIO device.
1041 This driver also can be used for LAPIS Semiconductor IOH(Input/
1042 Output Hub), ML7223 and ML7831.
1043 ML7223 IOH is for MP(Media Phone) use.
1044 ML7831 IOH is for general purpose use.
1045 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1046 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1049 tristate "RDC R-321x GPIO support"
1053 Support for the RDC R321x SoC GPIOs over southbridge
1054 PCI configuration space.
1056 config GPIO_SODAVILLE
1057 bool "Intel Sodaville GPIO support"
1058 depends on X86 && OF
1060 select GENERIC_IRQ_CHIP
1062 Say Y here to support Intel Sodaville GPIO.
1066 menu "SPI GPIO expanders"
1067 depends on SPI_MASTER
1070 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1073 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1074 shift registers. This driver can be used to provide access
1075 to more gpio outputs.
1078 tristate "Maxim MAX7301 GPIO expander"
1081 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1084 tristate "Freescale MC33880 high-side/low-side switch"
1086 SPI driver for Freescale MC33880 high-side/low-side switch.
1087 This provides GPIO interface supporting inputs and outputs.
1090 tristate "Generic parallel-in/serial-out shift register"
1092 GPIO driver for SPI compatible parallel-in/serial-out shift
1093 registers. These are input only devices.
1097 menu "SPI or I2C GPIO expanders"
1098 depends on (SPI_MASTER && !I2C) || I2C
1100 config GPIO_MCP23S08
1101 tristate "Microchip MCP23xxx I/O expander"
1102 select GPIOLIB_IRQCHIP
1104 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
1106 This provides a GPIO interface supporting inputs and outputs.
1107 The I2C versions of the chips can be used as interrupt-controller.
1111 menu "USB GPIO expanders"
1114 config GPIO_VIPERBOARD
1115 tristate "Viperboard GPIO a & b support"
1116 depends on MFD_VIPERBOARD
1118 Say yes here to access the GPIO signals of Nano River
1119 Technologies Viperboard. There are two GPIO chips on the
1120 board: gpioa and gpiob.
1121 See viperboard API specification and Nano
1122 River Tech's viperboard.h for detailed meaning
1123 of the module parameters.