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.
38 config GPIOLIB_IRQCHIP
43 bool "Debug GPIO calls"
44 depends on DEBUG_KERNEL
46 Say Y here to add some extra checks and diagnostics to GPIO calls.
47 These checks help ensure that GPIOs have been properly initialized
48 before they are used, and that sleeping calls are not made from
49 non-sleeping contexts. They can make bitbanged serial protocols
50 slower. The diagnostics help catch the type of setup errors
51 that are most common when setting up new platforms or boards.
54 bool "/sys/class/gpio/... (sysfs interface)"
57 Say Y here to add a sysfs interface for GPIOs.
59 This is mostly useful to work around omissions in a system's
60 kernel support. Those are common in custom and semicustom
61 hardware assembled using standard kernels with a minimum of
62 custom patches. In those cases, userspace code may import
63 a given GPIO from the kernel, if no kernel driver requested it.
65 Kernel drivers may also request that a particular GPIO be
66 exported to userspace; this can be useful when debugging.
71 # put drivers in the right section, in alphabetical order
73 # This symbol is selected by both I2C and SPI expanders
77 menu "Memory mapped GPIO drivers"
80 tristate "GPIO driver for 74xx-ICs with MMIO access"
84 Say yes here to support GPIO functionality for 74xx-compatible ICs
85 with MMIO access. Compatible models include:
86 1 bit: 741G125 (Input), 741G74 (Output)
87 2 bits: 742G125 (Input), 7474 (Output)
88 4 bits: 74125 (Input), 74175 (Output)
89 6 bits: 74365 (Input), 74174 (Output)
90 8 bits: 74244 (Input), 74273 (Output)
91 16 bits: 741624 (Input), 7416374 (Output)
94 tristate "Altera GPIO"
96 select GPIOLIB_IRQCHIP
98 Say Y or M here to build support for the Altera PIO device.
100 If driver is built as a module it will be called gpio-altera.
103 tristate "AMD Promontory GPIO support"
107 driver for GPIO functionality on Promontory IOHub
108 Require ACPI ASL code to enumerate as a platform device.
111 tristate "Aspeed GPIO support"
112 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
113 select GPIOLIB_IRQCHIP
115 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
118 tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
120 depends on ATH79 || COMPILE_TEST
122 select GPIOLIB_IRQCHIP
124 Select this option to enable GPIO driver for
125 Atheros AR71XX/AR724X/AR913X SoC devices.
128 tristate "X-Powers AXP209 PMIC GPIO Support"
129 depends on MFD_AXP20X
131 Say yes to enable GPIO support for the AXP209 PMIC
134 bool "Broadcom Kona GPIO"
135 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
137 Turn on GPIO support for Broadcom "Kona" chips.
140 tristate "BRCMSTB GPIO support"
141 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
142 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
144 select GPIOLIB_IRQCHIP
146 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
149 tristate "CLPS711X GPIO support"
150 depends on ARCH_CLPS711X || COMPILE_TEST
153 Say yes here to support GPIO on CLPS711X SoCs.
156 bool "TI Davinci/Keystone GPIO support"
157 default y if ARCH_DAVINCI
158 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
160 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
163 tristate "Synopsys DesignWare APB GPIO driver"
165 select GENERIC_IRQ_CHIP
167 Say Y or M here to build support for the Synopsys DesignWare APB
171 tristate "Emma Mobile GPIO"
172 depends on ARM && OF_GPIO
174 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
178 depends on ARCH_EP93XX
182 bool "Axis ETRAX FS General I/O"
183 depends on CRIS || COMPILE_TEST
186 select GPIOLIB_IRQCHIP
188 Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.
191 bool "GE FPGA based GPIO"
195 Support for common GPIO functionality provided on some GE Single Board
198 This driver provides basic support (configure as input or output, read
199 and write pin state) for GPIO implemented in a number of GE single
202 config GPIO_GENERIC_PLATFORM
203 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
206 Say yes here to support basic platform_device memory-mapped GPIO controllers.
209 tristate "Aeroflex Gaisler GRGPIO support"
214 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
215 VHDL IP core library.
218 tristate "Intel ICH GPIO"
219 depends on PCI && X86
223 Say yes here to support the GPIO functionality of a number of Intel
224 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
225 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
226 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
231 tristate "Intel IOP GPIO"
232 depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST
235 Say yes here to support the GPIO functionality of a number of Intel
241 bool "Loongson-2/3 GPIO support"
242 depends on CPU_LOONGSON2 || CPU_LOONGSON3
244 driver for GPIO functionality on Loongson-2F/3A/3B processors.
247 tristate "NXP LPC18XX/43XX GPIO support"
248 default y if ARCH_LPC18XX
249 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
251 Select this option to enable GPIO driver for
252 NXP LPC18XX/43XX devices.
254 config GPIO_LYNXPOINT
255 tristate "Intel Lynxpoint GPIO support"
256 depends on ACPI && X86
257 select GPIOLIB_IRQCHIP
259 driver for GPIO functionality on Intel Lynxpoint PCH chipset
260 Requires ACPI device enumeration code to set up a platform device.
263 bool "GPIO support for Fujitsu MB86S7x Platforms"
264 depends on ARCH_MB86S7X || COMPILE_TEST
266 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
269 tristate "MEN 16Z127 GPIO support"
273 Say yes here to support the MEN 16Z127 GPIO Controller
275 config GPIO_MM_LANTIQ
276 bool "Lantiq Memory mapped GPIOs"
277 depends on LANTIQ && SOC_XWAY
279 This enables support for memory mapped GPIOs on the External Bus Unit
280 (EBU) found on Lantiq SoCs. The gpios are output only as they are
281 created by attaching a 16bit latch to the bus.
284 bool "MOXART GPIO support"
285 depends on ARCH_MOXART || COMPILE_TEST
288 Select this option to enable GPIO driver for
289 MOXA ART SoC devices.
293 depends on PPC_MPC52xx
296 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
297 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
298 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
303 Say Y here if you're going to use hardware that connects to the
304 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
308 depends on PLAT_ORION
310 select GENERIC_IRQ_CHIP
316 select GENERIC_IRQ_CHIP
322 select GENERIC_IRQ_CHIP
325 tristate "Cavium OCTEON GPIO"
326 depends on GPIOLIB && CAVIUM_OCTEON_SOC
329 Say yes here to support the on-chip GPIO lines on the OCTEON
333 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
334 default y if ARCH_OMAP
336 select GENERIC_IRQ_CHIP
337 select GPIOLIB_IRQCHIP
339 Say yes here to enable GPIO support for TI OMAP SoCs.
342 bool "PrimeCell PL061 GPIO support"
345 select GPIOLIB_IRQCHIP
347 Say yes here to support the PrimeCell PL061 GPIO device
350 bool "PXA GPIO support"
351 depends on ARCH_PXA || ARCH_MMP
353 Say yes here to support the PXA GPIO device
356 tristate "Renesas R-Car GPIO"
357 depends on ARCH_RENESAS || COMPILE_TEST
358 select GPIOLIB_IRQCHIP
360 Say yes here to support GPIO on Renesas R-Car SoCs.
362 config GPIO_SPEAR_SPICS
363 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
364 depends on PLAT_SPEAR
365 select GENERIC_IRQ_CHIP
367 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
370 bool "STA2x11/ConneXt GPIO support"
371 depends on MFD_STA2X11
372 select GENERIC_IRQ_CHIP
374 Say yes here to support the STA2x11/ConneXt GPIO device.
375 The GPIO module has 128 GPIO pins with alternate functions.
378 bool "XWAY STP GPIOs"
381 This enables support for the Serial To Parallel (STP) unit found on
382 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
383 that can be up to 24 bit. This peripheral is aimed at driving leds.
384 Some of the gpios/leds can be auto updated by the soc with dsl and
388 tristate "GPIO based on SYSCON"
389 depends on MFD_SYSCON && OF
391 Say yes here to support GPIO functionality though SYSCON driver.
395 select GENERIC_IRQ_CHIP
399 bool "NVIDIA Tegra GPIO support"
401 depends on ARCH_TEGRA || COMPILE_TEST
404 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
407 tristate "TS-4800 DIO blocks and compatibles"
409 depends on SOC_IMX51 || COMPILE_TEST
412 This driver support TS-4800 FPGA GPIO controllers.
415 bool "Toumaz Xenif TZ1090 GPIO support"
416 depends on SOC_TZ1090
417 select GENERIC_IRQ_CHIP
420 Say yes here to support Toumaz Xenif TZ1090 GPIOs.
422 config GPIO_TZ1090_PDC
423 bool "Toumaz Xenif TZ1090 PDC GPIO support"
424 depends on SOC_TZ1090
427 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
431 depends on ARCH_MXC && SOC_VF610
432 select GPIOLIB_IRQCHIP
434 Say yes here to support Vybrid vf610 GPIOs.
437 tristate "NEC VR4100 series General-purpose I/O Uint support"
438 depends on CPU_VR41XX
440 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
443 tristate "VIA VX855/VX875 GPIO"
448 Support access to the VX855/VX875 GPIO lines through the gpio library.
450 This driver provides common support for accessing the device,
451 additional drivers must be enabled in order to use the
452 functionality of the device.
455 bool "APM X-Gene GPIO controller support"
456 depends on ARM64 && OF_GPIO
458 This driver is to support the GPIO block within the APM X-Gene SoC
459 platform's generic flash controller. The GPIO pins are muxed with
460 the generic flash controller's address and data pins. Say yes
461 here to enable the GFC GPIO functionality.
464 tristate "APM X-Gene GPIO standby controller support"
465 depends on ARCH_XGENE && OF_GPIO
467 select GPIOLIB_IRQCHIP
469 This driver supports the GPIO block within the APM X-Gene
470 Standby Domain. Say yes here to enable the GPIO functionality.
473 tristate "Xilinx GPIO support"
476 Say yes here to support the Xilinx FPGA GPIO device
479 tristate "Netlogic XLP GPIO support"
480 depends on OF_GPIO && (CPU_XLP || ARCH_VULCAN || COMPILE_TEST)
481 select GPIOLIB_IRQCHIP
483 This driver provides support for GPIO interface on Netlogic XLP MIPS64
484 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
490 bool "Xtensa GPIO32 support"
492 depends on HAVE_XTENSA_GPIO32
495 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
496 and EXPSTATE (output) ports
499 bool "LSI ZEVIO SoC memory mapped GPIOs"
500 depends on ARM && OF_GPIO
502 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
505 tristate "Xilinx Zynq GPIO support"
506 depends on ARCH_ZYNQ || ARCH_ZYNQMP
507 select GPIOLIB_IRQCHIP
509 Say yes here to support Xilinx Zynq GPIO controller.
512 bool "ZTE ZX GPIO support"
513 select GPIOLIB_IRQCHIP
515 Say yes here to support the GPIO device on ZTE ZX SoCs.
517 config GPIO_LOONGSON1
518 tristate "Loongson1 GPIO support"
519 depends on MACH_LOONGSON32
522 Say Y or M here to support GPIO on Loongson1 SoCs.
526 menu "Port-mapped I/O GPIO drivers"
527 depends on X86 # Unconditional I/O space access
529 config GPIO_104_DIO_48E
530 tristate "ACCES 104-DIO-48E GPIO support"
531 depends on ISA_BUS_API
532 select GPIOLIB_IRQCHIP
534 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
535 104-DIO-24E). The base port addresses for the devices may be
536 configured via the base module parameter. The interrupt line numbers
537 for the devices may be configured via the irq module parameter.
539 config GPIO_104_IDIO_16
540 tristate "ACCES 104-IDIO-16 GPIO support"
541 depends on ISA_BUS_API
542 select GPIOLIB_IRQCHIP
544 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
545 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
546 base port addresses for the devices may be configured via the base
547 module parameter. The interrupt line numbers for the devices may be
548 configured via the irq module parameter.
550 config GPIO_104_IDI_48
551 tristate "ACCES 104-IDI-48 GPIO support"
552 depends on ISA_BUS_API
553 select GPIOLIB_IRQCHIP
555 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
556 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
557 the devices may be configured via the base module parameter. The
558 interrupt line numbers for the devices may be configured via the irq
562 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
564 This option enables support for GPIOs found on Fintek Super-I/O
565 chips F71869, F71869A, F71882FG, F71889F and F81866.
567 To compile this driver as a module, choose M here: the module will
568 be called f7188x-gpio.
571 tristate "Diamond Systems GPIO-MM GPIO support"
572 depends on ISA_BUS_API
574 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
576 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
577 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
578 support for these 48 channels of digital I/O.
580 The base port addresses for the devices may be configured via the base
581 array module parameter.
584 tristate "IT87xx GPIO support"
586 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
588 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
589 supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
591 To compile this driver as a module, choose M here: the module will
595 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
600 Say yes here to support GPIO interface on Intel Poulsbo SCH,
601 Intel Tunnel Creek processor, Intel Centerton processor or
602 Intel Quark X1000 SoC.
604 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
605 powered by the core power rail and are turned off during sleep
606 modes (S3 and higher). The remaining four GPIOs are powered by
607 the Intel SCH suspend power supply. These GPIOs remain
608 active during S3. The suspend powered GPIOs can be used to wake the
609 system from the Suspend-to-RAM state.
611 The Intel Tunnel Creek processor has 5 GPIOs powered by the
612 core power rail and 9 from suspend power supply.
614 The Intel Centerton processor has a total of 30 GPIO pins.
615 Twenty-one are powered by the core power rail and 9 from the
616 suspend power supply.
618 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
619 power well and 6 from the suspend power well.
622 tristate "SMSC SCH311x SuperI/O GPIO"
624 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
625 SCH3116 "Super I/O" chipsets.
627 To compile this driver as a module, choose M here: the module will
628 be called gpio-sch311x.
631 tristate "TS-5500 DIO blocks and compatibles"
632 depends on TS5500 || COMPILE_TEST
634 This driver supports Digital I/O exposed by pin blocks found on some
635 Technologic Systems platforms. It includes, but is not limited to, 3
636 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
640 tristate "WinSystems WS16C48 GPIO support"
641 depends on ISA_BUS_API
642 select GPIOLIB_IRQCHIP
644 Enables GPIO support for the WinSystems WS16C48. The base port
645 addresses for the devices may be configured via the base module
646 parameter. The interrupt line numbers for the devices may be
647 configured via the irq module parameter.
651 menu "I2C GPIO expanders"
655 tristate "ADP5588 I2C GPIO expander"
657 This option enables support for 18 GPIOs found
658 on Analog Devices ADP5588 GPIO Expanders.
660 config GPIO_ADP5588_IRQ
661 bool "Interrupt controller support for ADP5588"
662 depends on GPIO_ADP5588=y
664 Say yes here to enable the adp5588 to be used as an interrupt
665 controller. It requires the driver to be built in the kernel.
668 tristate "Avionic Design N-bit GPIO expander"
670 select GPIOLIB_IRQCHIP
672 This option enables support for N GPIOs found on Avionic Design
673 I2C GPIO expanders. The register space will be extended by powers
674 of two, so the controller will need to accommodate for that. For
675 example: if a controller provides 48 pins, 6 registers will be
676 enough to represent all pins, but the driver will assume a
677 register layout for 64 pins (8 registers).
680 tristate "Maxim MAX7300 GPIO expander"
683 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
686 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
688 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
689 Port Expanders. Each IO port on these chips has a fixed role of
690 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
691 Input and Output (designed by 'P'). The combinations are listed
694 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
695 max7322 (4I4O), max7323 (4P4O)
697 16 bits: max7324 (8I8O), max7325 (8P8O),
698 max7326 (4I12O), max7327 (4P12O)
700 Board setup code must specify the model to use, and the start
701 number for these GPIOs.
703 config GPIO_MAX732X_IRQ
704 bool "Interrupt controller support for MAX732x"
705 depends on GPIO_MAX732X=y
706 select GPIOLIB_IRQCHIP
708 Say yes here to enable the max732x to be used as an interrupt
709 controller. It requires the driver to be built in the kernel.
711 config GPIO_MC9S08DZ60
712 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
713 depends on I2C=y && MACH_MX35_3DS
715 Select this to enable the MC9S08DZ60 GPIO driver
718 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
720 Say yes here to provide access to several register-oriented
721 SMBus I/O expanders, made mostly by NXP or TI. Compatible
724 4 bits: pca9536, pca9537
726 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
727 pca9556, pca9557, pca9574, tca6408, xra1202
729 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
734 40 bits: pca9505, pca9698
736 config GPIO_PCA953X_IRQ
737 bool "Interrupt controller support for PCA953x"
738 depends on GPIO_PCA953X=y
739 select GPIOLIB_IRQCHIP
741 Say yes here to enable the pca953x to be used as an interrupt
742 controller. It requires the driver to be built in the kernel.
745 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
746 select GPIOLIB_IRQCHIP
749 Say yes here to provide access to most "quasi-bidirectional" I2C
750 GPIO expanders used for additional digital outputs or inputs.
751 Most of these parts are from NXP, though TI is a second source for
752 some of them. Compatible models include:
754 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
755 pca9670, pca9672, pca9674, pca9674a,
758 16 bits: pcf8575, pcf8575c, pca8575,
759 pca9671, pca9673, pca9675
761 Your board setup code will need to declare the expanders in
762 use, and assign numbers to the GPIOs they expose. Those GPIOs
763 can then be used from drivers and other kernel code, just like
764 other GPIOs, but only accessible from task contexts.
766 This driver provides an in-kernel interface to those GPIOs using
767 platform-neutral GPIO calls.
770 bool "Semtech SX150x I2C GPIO expander"
772 select GPIOLIB_IRQCHIP
775 Say yes here to provide support for Semtech SX150-series I2C
776 GPIO expanders. Compatible models include:
782 tristate "TPIC2810 8-Bit I2C GPO expander"
784 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
786 To compile this driver as a module, choose M here: the module will
787 be called gpio-tpic2810.
790 tristate "Technologic Systems FPGA I2C GPIO"
793 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
794 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
798 menu "MFD GPIO expanders"
801 tristate "GPIO Support for ADP5520 PMIC"
802 depends on PMIC_ADP5520
804 This option enables support for on-chip GPIO found
805 on Analog Devices ADP5520 PMICs.
808 tristate "Wolfson Microelectronics Arizona class devices"
809 depends on MFD_ARIZONA
811 Support for GPIOs on Wolfson Arizona class devices.
813 config GPIO_CRYSTAL_COVE
814 tristate "GPIO support for Crystal Cove PMIC"
815 depends on INTEL_SOC_PMIC
816 select GPIOLIB_IRQCHIP
818 Support for GPIO pins on Crystal Cove PMIC.
820 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
823 This driver can also be built as a module. If so, the module will be
824 called gpio-crystalcove.
827 tristate "AMD CS5535/CS5536 GPIO support"
828 depends on MFD_CS5535
830 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
831 can be used for quite a number of things. The CS5535/6 is found on
832 AMD Geode and Lemote Yeeloong devices.
837 tristate "Dialog DA9052 GPIO"
838 depends on PMIC_DA9052
840 Say yes here to enable the GPIO driver for the DA9052 chip.
843 tristate "Dialog Semiconductor DA9055 GPIO"
844 depends on MFD_DA9055
846 Say yes here to enable the GPIO driver for the DA9055 chip.
848 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
849 be controller by this driver.
851 If driver is built as a module it will be called gpio-da9055.
854 tristate "Diolan DLN2 GPIO support"
856 select GPIOLIB_IRQCHIP
859 Select this option to enable GPIO driver for the Diolan DLN2
862 This driver can also be built as a module. If so, the module
863 will be called gpio-dln2.
866 tristate "Janz VMOD-TTL Digital IO Module"
867 depends on MFD_JANZ_CMODIO
869 This enables support for the Janz VMOD-TTL Digital IO module.
870 This driver provides support for driving the pins in output
871 mode only. Input mode is not supported.
874 tristate "Kontron ETX / COMexpress GPIO"
875 depends on MFD_KEMPLD
877 This enables support for the PLD GPIO interface on some Kontron ETX
878 and COMexpress (ETXexpress) modules.
880 This driver can also be built as a module. If so, the module will be
884 tristate "TI/National Semiconductor LP3943 GPIO expander"
885 depends on MFD_LP3943
887 GPIO driver for LP3943 MFD.
888 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
889 Open drain outputs are required for this usage.
892 tristate "TI LP873X GPO"
893 depends on MFD_TI_LP873X
895 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
898 This driver can also be built as a module. If so, the module will be
902 tristate "GPIO support for PMIC MAX77620 and MAX20024"
903 depends on MFD_MAX77620
905 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
906 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
907 driver also provides interrupt support for each of the gpios.
908 Say yes here to enable the max77620 to be used as gpio controller.
911 bool "Intel MSIC mixed signal gpio support"
912 depends on MFD_INTEL_MSIC
914 Enable support for GPIO on intel MSIC controllers found in
918 bool "TI PALMAS series PMICs GPIO"
919 depends on MFD_PALMAS
921 Select this option to enable GPIO driver for the TI PALMAS
925 bool "RICOH RC5T583 GPIO"
926 depends on MFD_RC5T583
928 Select this option to enable GPIO driver for the Ricoh RC5T583
930 This driver provides the support for driving/reading the gpio pins
931 of RC5T583 device through standard gpio library.
937 select GPIOLIB_IRQCHIP
939 This enables support for the GPIOs found on the STMPE I/O
944 depends on MFD_TC3589X
946 select GPIOLIB_IRQCHIP
948 This enables support for the GPIOs found on the TC3589X
951 config GPIO_TIMBERDALE
952 bool "Support for timberdale GPIO IP"
953 depends on MFD_TIMBERDALE
955 Add support for the GPIO IP in the timberdale FPGA.
958 tristate "TI TPS65086 GPO"
959 depends on MFD_TPS65086
961 This driver supports the GPO on TI TPS65086x PMICs.
964 tristate "TPS65218 GPIO"
965 depends on MFD_TPS65218
967 Select this option to enable GPIO driver for the TPS65218
972 depends on MFD_TPS6586X
974 Select this option to enable GPIO driver for the TPS6586X
979 depends on MFD_TPS65910
981 Select this option to enable GPIO driver for the TPS65910
985 tristate "TI TPS65912 GPIO"
986 depends on MFD_TPS65912
988 This driver supports TPS65912 gpio chip
991 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
992 depends on TWL4030_CORE
994 Say yes here to access the GPIO signals of various multi-function
995 power management chips from Texas Instruments.
998 tristate "TWL6040 GPO"
999 depends on TWL6040_CORE
1001 Say yes here to access the GPO signals of twl6040
1002 audio chip from Texas Instruments.
1005 tristate "Philips UCB1400 GPIO"
1006 depends on UCB1400_CORE
1008 This enables support for the Philips UCB1400 GPIO pins.
1009 The UCB1400 is an AC97 audio codec.
1011 config GPIO_WHISKEY_COVE
1012 tristate "GPIO support for Whiskey Cove PMIC"
1013 depends on INTEL_SOC_PMIC
1014 select GPIOLIB_IRQCHIP
1016 Support for GPIO pins on Whiskey Cove PMIC.
1018 Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1021 This driver can also be built as a module. If so, the module will be
1025 tristate "WM831x GPIOs"
1026 depends on MFD_WM831X
1028 Say yes here to access the GPIO signals of WM831x power management
1029 chips from Wolfson Microelectronics.
1032 tristate "WM8350 GPIOs"
1033 depends on MFD_WM8350
1035 Say yes here to access the GPIO signals of WM8350 power management
1036 chips from Wolfson Microelectronics.
1039 tristate "WM8994 GPIOs"
1040 depends on MFD_WM8994
1042 Say yes here to access the GPIO signals of WM8994 audio hub
1043 CODECs from Wolfson Microelectronics.
1047 menu "PCI GPIO expanders"
1051 tristate "AMD 8111 GPIO driver"
1053 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1055 Note, that usually system firmware/ACPI handles GPIO pins on their
1056 own and users might easily break their systems with uncarefull usage
1062 tristate "BT8XX GPIO abuser"
1063 depends on VIDEO_BT848=n
1065 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1066 as a cheap PCI GPIO card.
1068 This chip can be found on Miro, Hauppauge and STB TV-cards.
1070 The card needs to be physically altered for using it as a
1071 GPIO card. For more information on how to build a GPIO card
1072 from a BT8xx TV card, see the documentation file at
1073 Documentation/bt8xxgpio.txt
1077 config GPIO_INTEL_MID
1078 bool "Intel MID GPIO support"
1079 depends on X86_INTEL_MID
1080 select GPIOLIB_IRQCHIP
1082 Say Y here to support Intel MID GPIO.
1084 config GPIO_MERRIFIELD
1085 tristate "Intel Merrifield GPIO support"
1086 depends on X86_INTEL_MID
1087 select GPIOLIB_IRQCHIP
1089 Say Y here to support Intel Merrifield GPIO.
1092 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1093 select GENERIC_IRQ_CHIP
1095 ML7213 is companion chip for Intel Atom E6xx series.
1096 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1097 Hub) which is for IVI(In-Vehicle Infotainment) use.
1098 This driver can access the IOH's GPIO device.
1101 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1102 depends on X86_32 || MIPS || COMPILE_TEST
1103 select GENERIC_IRQ_CHIP
1105 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1106 which is an IOH(Input/Output Hub) for x86 embedded processor.
1107 This driver can access PCH GPIO device.
1109 This driver also can be used for LAPIS Semiconductor IOH(Input/
1110 Output Hub), ML7223 and ML7831.
1111 ML7223 IOH is for MP(Media Phone) use.
1112 ML7831 IOH is for general purpose use.
1113 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1114 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1117 tristate "RDC R-321x GPIO support"
1121 Support for the RDC R321x SoC GPIOs over southbridge
1122 PCI configuration space.
1124 config GPIO_SODAVILLE
1125 bool "Intel Sodaville GPIO support"
1126 depends on X86 && OF
1128 select GENERIC_IRQ_CHIP
1130 Say Y here to support Intel Sodaville GPIO.
1134 menu "SPI GPIO expanders"
1135 depends on SPI_MASTER
1138 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1141 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1142 shift registers. This driver can be used to provide access
1143 to more gpio outputs.
1146 tristate "Maxim MAX7301 GPIO expander"
1149 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1152 tristate "Freescale MC33880 high-side/low-side switch"
1154 SPI driver for Freescale MC33880 high-side/low-side switch.
1155 This provides GPIO interface supporting inputs and outputs.
1158 tristate "Generic parallel-in/serial-out shift register"
1160 GPIO driver for SPI compatible parallel-in/serial-out shift
1161 registers. These are input only devices.
1165 menu "SPI or I2C GPIO expanders"
1166 depends on (SPI_MASTER && !I2C) || I2C
1168 config GPIO_MCP23S08
1169 tristate "Microchip MCP23xxx I/O expander"
1171 select GPIOLIB_IRQCHIP
1173 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
1175 This provides a GPIO interface supporting inputs and outputs.
1176 The I2C versions of the chips can be used as interrupt-controller.
1180 menu "USB GPIO expanders"
1183 config GPIO_VIPERBOARD
1184 tristate "Viperboard GPIO a & b support"
1185 depends on MFD_VIPERBOARD
1187 Say yes here to access the GPIO signals of Nano River
1188 Technologies Viperboard. There are two GPIO chips on the
1189 board: gpioa and gpiob.
1190 See viperboard API specification and Nano
1191 River Tech's viperboard.h for detailed meaning
1192 of the module parameters.