2 # GPIO infrastructure and drivers
5 config ARCH_HAVE_CUSTOM_GPIO_H
8 Selecting this config option from the architecture Kconfig allows
9 the architecture to provide a custom asm/gpio.h implementation
10 overriding the default implementations. New uses of this are
17 This enables GPIO support through the generic GPIO library.
18 You only need to enable this, if you also want to enable
19 one or more of the GPIO drivers below.
34 config GPIOLIB_IRQCHIP
39 bool "Debug GPIO calls"
40 depends on DEBUG_KERNEL
42 Say Y here to add some extra checks and diagnostics to GPIO calls.
43 These checks help ensure that GPIOs have been properly initialized
44 before they are used, and that sleeping calls are not made from
45 non-sleeping contexts. They can make bitbanged serial protocols
46 slower. The diagnostics help catch the type of setup errors
47 that are most common when setting up new platforms or boards.
50 bool "/sys/class/gpio/... (sysfs interface)"
53 Say Y here to add a sysfs interface for GPIOs.
55 This is mostly useful to work around omissions in a system's
56 kernel support. Those are common in custom and semicustom
57 hardware assembled using standard kernels with a minimum of
58 custom patches. In those cases, userspace code may import
59 a given GPIO from the kernel, if no kernel driver requested it.
61 Kernel drivers may also request that a particular GPIO be
62 exported to userspace; this can be useful when debugging.
65 depends on HAS_IOMEM # Only for IOMEM drivers
68 # put drivers in the right section, in alphabetical order
70 # This symbol is selected by both I2C and SPI expanders
74 menu "Memory mapped GPIO drivers"
78 tristate "GPIO driver for 74xx-ICs with MMIO access"
82 Say yes here to support GPIO functionality for 74xx-compatible ICs
83 with MMIO access. Compatible models include:
84 1 bit: 741G125 (Input), 741G74 (Output)
85 2 bits: 742G125 (Input), 7474 (Output)
86 4 bits: 74125 (Input), 74175 (Output)
87 6 bits: 74365 (Input), 74174 (Output)
88 8 bits: 74244 (Input), 74273 (Output)
89 16 bits: 741624 (Input), 7416374 (Output)
92 tristate "Altera GPIO"
94 select GPIOLIB_IRQCHIP
96 Say Y or M here to build support for the Altera PIO device.
98 If driver is built as a module it will be called gpio-altera.
101 tristate "AMD Promontory GPIO support"
105 driver for GPIO functionality on Promontory IOHub
106 Require ACPI ASL code to enumerate as a platform device.
109 tristate "Aspeed GPIO support"
110 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
111 select GPIOLIB_IRQCHIP
113 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
116 tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
118 depends on ATH79 || COMPILE_TEST
120 select GPIOLIB_IRQCHIP
122 Select this option to enable GPIO driver for
123 Atheros AR71XX/AR724X/AR913X SoC devices.
126 tristate "X-Powers AXP209 PMIC GPIO Support"
127 depends on MFD_AXP20X
129 Say yes to enable GPIO support for the AXP209 PMIC
132 bool "Broadcom Kona GPIO"
133 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
135 Turn on GPIO support for Broadcom "Kona" chips.
138 tristate "BRCMSTB GPIO support"
139 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
140 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
142 select GPIOLIB_IRQCHIP
144 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
147 tristate "CLPS711X GPIO support"
148 depends on ARCH_CLPS711X || COMPILE_TEST
151 Say yes here to support GPIO on CLPS711X SoCs.
154 bool "TI Davinci/Keystone GPIO support"
155 default y if ARCH_DAVINCI
156 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
158 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
161 tristate "Synopsys DesignWare APB GPIO driver"
163 select GENERIC_IRQ_CHIP
165 Say Y or M here to build support for the Synopsys DesignWare APB
169 tristate "Emma Mobile GPIO"
170 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
172 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
176 depends on ARCH_EP93XX
180 bool "Axis ETRAX FS General I/O"
181 depends on CRIS || COMPILE_TEST
184 select GPIOLIB_IRQCHIP
186 Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.
189 bool "GE FPGA based GPIO"
193 Support for common GPIO functionality provided on some GE Single Board
196 This driver provides basic support (configure as input or output, read
197 and write pin state) for GPIO implemented in a number of GE single
200 config GPIO_GENERIC_PLATFORM
201 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
204 Say yes here to support basic platform_device memory-mapped GPIO controllers.
207 tristate "Aeroflex Gaisler GRGPIO support"
212 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
213 VHDL IP core library.
216 tristate "Intel ICH GPIO"
217 depends on PCI && X86
221 Say yes here to support the GPIO functionality of a number of Intel
222 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
223 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
224 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
229 tristate "Intel IOP GPIO"
230 depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST
233 Say yes here to support the GPIO functionality of a number of Intel
239 bool "Loongson-2/3 GPIO support"
240 depends on CPU_LOONGSON2 || CPU_LOONGSON3
242 driver for GPIO functionality on Loongson-2F/3A/3B processors.
245 tristate "NXP LPC18XX/43XX GPIO support"
246 default y if ARCH_LPC18XX
247 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
249 Select this option to enable GPIO driver for
250 NXP LPC18XX/43XX devices.
252 config GPIO_LYNXPOINT
253 tristate "Intel Lynxpoint GPIO support"
254 depends on ACPI && X86
255 select GPIOLIB_IRQCHIP
257 driver for GPIO functionality on Intel Lynxpoint PCH chipset
258 Requires ACPI device enumeration code to set up a platform device.
261 bool "GPIO support for Fujitsu MB86S7x Platforms"
262 depends on ARCH_MB86S7X || COMPILE_TEST
264 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
267 tristate "MEN 16Z127 GPIO support"
271 Say yes here to support the MEN 16Z127 GPIO Controller
273 config GPIO_MM_LANTIQ
274 bool "Lantiq Memory mapped GPIOs"
275 depends on LANTIQ && SOC_XWAY
277 This enables support for memory mapped GPIOs on the External Bus Unit
278 (EBU) found on Lantiq SoCs. The gpios are output only as they are
279 created by attaching a 16bit latch to the bus.
282 tristate "GPIO Testing Driver"
283 depends on GPIOLIB && SYSFS
286 This enables GPIO Testing driver, which provides a way to test GPIO
287 subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
288 must be selected for this test.
289 User could use it through the script in
290 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
294 bool "MOXART GPIO support"
295 depends on ARCH_MOXART || COMPILE_TEST
298 Select this option to enable GPIO driver for
299 MOXA ART SoC devices.
303 depends on PPC_MPC52xx
306 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
307 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
308 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
313 Say Y here if you're going to use hardware that connects to the
314 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
318 depends on PLAT_ORION
320 select GENERIC_IRQ_CHIP
326 select GENERIC_IRQ_CHIP
332 select GENERIC_IRQ_CHIP
335 tristate "Cavium OCTEON GPIO"
336 depends on GPIOLIB && CAVIUM_OCTEON_SOC
339 Say yes here to support the on-chip GPIO lines on the OCTEON
343 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
344 default y if ARCH_OMAP
346 select GENERIC_IRQ_CHIP
347 select GPIOLIB_IRQCHIP
349 Say yes here to enable GPIO support for TI OMAP SoCs.
352 bool "PrimeCell PL061 GPIO support"
355 select GPIOLIB_IRQCHIP
357 Say yes here to support the PrimeCell PL061 GPIO device
360 bool "PXA GPIO support"
361 depends on ARCH_PXA || ARCH_MMP
363 Say yes here to support the PXA GPIO device
366 tristate "Renesas R-Car GPIO"
367 depends on ARCH_RENESAS || COMPILE_TEST
368 select GPIOLIB_IRQCHIP
370 Say yes here to support GPIO on Renesas R-Car SoCs.
372 config GPIO_SPEAR_SPICS
373 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
374 depends on PLAT_SPEAR
375 select GENERIC_IRQ_CHIP
377 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
380 bool "STA2x11/ConneXt GPIO support"
381 depends on MFD_STA2X11
382 select GENERIC_IRQ_CHIP
384 Say yes here to support the STA2x11/ConneXt GPIO device.
385 The GPIO module has 128 GPIO pins with alternate functions.
388 bool "XWAY STP GPIOs"
391 This enables support for the Serial To Parallel (STP) unit found on
392 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
393 that can be up to 24 bit. This peripheral is aimed at driving leds.
394 Some of the gpios/leds can be auto updated by the soc with dsl and
398 tristate "GPIO based on SYSCON"
399 depends on MFD_SYSCON && OF
401 Say yes here to support GPIO functionality though SYSCON driver.
405 select GENERIC_IRQ_CHIP
409 bool "NVIDIA Tegra GPIO support"
411 depends on ARCH_TEGRA || COMPILE_TEST
414 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
417 tristate "TS-4800 DIO blocks and compatibles"
419 depends on SOC_IMX51 || COMPILE_TEST
422 This driver support TS-4800 FPGA GPIO controllers.
425 bool "Toumaz Xenif TZ1090 GPIO support"
426 depends on SOC_TZ1090
427 select GENERIC_IRQ_CHIP
430 Say yes here to support Toumaz Xenif TZ1090 GPIOs.
432 config GPIO_TZ1090_PDC
433 bool "Toumaz Xenif TZ1090 PDC GPIO support"
434 depends on SOC_TZ1090
437 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
441 depends on ARCH_MXC && SOC_VF610
442 select GPIOLIB_IRQCHIP
444 Say yes here to support Vybrid vf610 GPIOs.
447 tristate "NEC VR4100 series General-purpose I/O Uint support"
448 depends on CPU_VR41XX
450 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
453 tristate "VIA VX855/VX875 GPIO"
454 depends on (X86 || COMPILE_TEST) && PCI
458 Support access to the VX855/VX875 GPIO lines through the gpio library.
460 This driver provides common support for accessing the device,
461 additional drivers must be enabled in order to use the
462 functionality of the device.
465 bool "APM X-Gene GPIO controller support"
466 depends on ARM64 && OF_GPIO
468 This driver is to support the GPIO block within the APM X-Gene SoC
469 platform's generic flash controller. The GPIO pins are muxed with
470 the generic flash controller's address and data pins. Say yes
471 here to enable the GFC GPIO functionality.
474 tristate "APM X-Gene GPIO standby controller support"
475 depends on ARCH_XGENE && OF_GPIO
477 select GPIOLIB_IRQCHIP
479 This driver supports the GPIO block within the APM X-Gene
480 Standby Domain. Say yes here to enable the GPIO functionality.
483 tristate "Xilinx GPIO support"
486 Say yes here to support the Xilinx FPGA GPIO device
489 tristate "Netlogic XLP GPIO support"
490 depends on OF_GPIO && (CPU_XLP || ARCH_VULCAN || COMPILE_TEST)
491 select GPIOLIB_IRQCHIP
493 This driver provides support for GPIO interface on Netlogic XLP MIPS64
494 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
500 bool "Xtensa GPIO32 support"
502 depends on HAVE_XTENSA_GPIO32
505 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
506 and EXPSTATE (output) ports
509 bool "LSI ZEVIO SoC memory mapped GPIOs"
510 depends on ARM && OF_GPIO
512 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
515 tristate "Xilinx Zynq GPIO support"
516 depends on ARCH_ZYNQ || ARCH_ZYNQMP
517 select GPIOLIB_IRQCHIP
519 Say yes here to support Xilinx Zynq GPIO controller.
522 bool "ZTE ZX GPIO support"
523 depends on ARCH_ZX || COMPILE_TEST
524 select GPIOLIB_IRQCHIP
526 Say yes here to support the GPIO device on ZTE ZX SoCs.
528 config GPIO_LOONGSON1
529 tristate "Loongson1 GPIO support"
530 depends on MACH_LOONGSON32
533 Say Y or M here to support GPIO on Loongson1 SoCs.
537 menu "Port-mapped I/O GPIO drivers"
538 depends on X86 # Unconditional I/O space access
540 config GPIO_104_DIO_48E
541 tristate "ACCES 104-DIO-48E GPIO support"
542 depends on ISA_BUS_API
543 select GPIOLIB_IRQCHIP
545 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
546 104-DIO-24E). The base port addresses for the devices may be
547 configured via the base module parameter. The interrupt line numbers
548 for the devices may be configured via the irq module parameter.
550 config GPIO_104_IDIO_16
551 tristate "ACCES 104-IDIO-16 GPIO support"
552 depends on ISA_BUS_API
553 select GPIOLIB_IRQCHIP
555 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
556 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
557 base port addresses for the devices may be configured via the base
558 module parameter. The interrupt line numbers for the devices may be
559 configured via the irq module parameter.
561 config GPIO_104_IDI_48
562 tristate "ACCES 104-IDI-48 GPIO support"
563 depends on ISA_BUS_API
564 select GPIOLIB_IRQCHIP
566 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
567 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
568 the devices may be configured via the base module parameter. The
569 interrupt line numbers for the devices may be configured via the irq
573 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
575 This option enables support for GPIOs found on Fintek Super-I/O
576 chips F71869, F71869A, F71882FG, F71889F and F81866.
578 To compile this driver as a module, choose M here: the module will
579 be called f7188x-gpio.
582 tristate "Diamond Systems GPIO-MM GPIO support"
583 depends on ISA_BUS_API
585 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
587 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
588 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
589 support for these 48 channels of digital I/O.
591 The base port addresses for the devices may be configured via the base
592 array module parameter.
595 tristate "IT87xx GPIO support"
597 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
599 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
600 supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
602 To compile this driver as a module, choose M here: the module will
606 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
607 depends on (X86 || COMPILE_TEST) && PCI
611 Say yes here to support GPIO interface on Intel Poulsbo SCH,
612 Intel Tunnel Creek processor, Intel Centerton processor or
613 Intel Quark X1000 SoC.
615 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
616 powered by the core power rail and are turned off during sleep
617 modes (S3 and higher). The remaining four GPIOs are powered by
618 the Intel SCH suspend power supply. These GPIOs remain
619 active during S3. The suspend powered GPIOs can be used to wake the
620 system from the Suspend-to-RAM state.
622 The Intel Tunnel Creek processor has 5 GPIOs powered by the
623 core power rail and 9 from suspend power supply.
625 The Intel Centerton processor has a total of 30 GPIO pins.
626 Twenty-one are powered by the core power rail and 9 from the
627 suspend power supply.
629 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
630 power well and 6 from the suspend power well.
633 tristate "SMSC SCH311x SuperI/O GPIO"
635 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
636 SCH3116 "Super I/O" chipsets.
638 To compile this driver as a module, choose M here: the module will
639 be called gpio-sch311x.
642 tristate "TS-5500 DIO blocks and compatibles"
643 depends on TS5500 || COMPILE_TEST
645 This driver supports Digital I/O exposed by pin blocks found on some
646 Technologic Systems platforms. It includes, but is not limited to, 3
647 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
651 tristate "WinSystems WS16C48 GPIO support"
652 depends on ISA_BUS_API
653 select GPIOLIB_IRQCHIP
655 Enables GPIO support for the WinSystems WS16C48. The base port
656 addresses for the devices may be configured via the base module
657 parameter. The interrupt line numbers for the devices may be
658 configured via the irq module parameter.
662 menu "I2C GPIO expanders"
666 tristate "ADP5588 I2C GPIO expander"
668 This option enables support for 18 GPIOs found
669 on Analog Devices ADP5588 GPIO Expanders.
671 config GPIO_ADP5588_IRQ
672 bool "Interrupt controller support for ADP5588"
673 depends on GPIO_ADP5588=y
675 Say yes here to enable the adp5588 to be used as an interrupt
676 controller. It requires the driver to be built in the kernel.
679 tristate "Avionic Design N-bit GPIO expander"
681 select GPIOLIB_IRQCHIP
683 This option enables support for N GPIOs found on Avionic Design
684 I2C GPIO expanders. The register space will be extended by powers
685 of two, so the controller will need to accommodate for that. For
686 example: if a controller provides 48 pins, 6 registers will be
687 enough to represent all pins, but the driver will assume a
688 register layout for 64 pins (8 registers).
691 tristate "Maxim MAX7300 GPIO expander"
694 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
697 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
699 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
700 Port Expanders. Each IO port on these chips has a fixed role of
701 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
702 Input and Output (designed by 'P'). The combinations are listed
705 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
706 max7322 (4I4O), max7323 (4P4O)
708 16 bits: max7324 (8I8O), max7325 (8P8O),
709 max7326 (4I12O), max7327 (4P12O)
711 Board setup code must specify the model to use, and the start
712 number for these GPIOs.
714 config GPIO_MAX732X_IRQ
715 bool "Interrupt controller support for MAX732x"
716 depends on GPIO_MAX732X=y
717 select GPIOLIB_IRQCHIP
719 Say yes here to enable the max732x to be used as an interrupt
720 controller. It requires the driver to be built in the kernel.
722 config GPIO_MC9S08DZ60
723 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
724 depends on I2C=y && MACH_MX35_3DS
726 Select this to enable the MC9S08DZ60 GPIO driver
729 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
731 Say yes here to provide access to several register-oriented
732 SMBus I/O expanders, made mostly by NXP or TI. Compatible
735 4 bits: pca9536, pca9537
737 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
738 pca9556, pca9557, pca9574, tca6408, xra1202
740 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
745 40 bits: pca9505, pca9698
747 config GPIO_PCA953X_IRQ
748 bool "Interrupt controller support for PCA953x"
749 depends on GPIO_PCA953X=y
750 select GPIOLIB_IRQCHIP
752 Say yes here to enable the pca953x to be used as an interrupt
753 controller. It requires the driver to be built in the kernel.
756 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
757 select GPIOLIB_IRQCHIP
760 Say yes here to provide access to most "quasi-bidirectional" I2C
761 GPIO expanders used for additional digital outputs or inputs.
762 Most of these parts are from NXP, though TI is a second source for
763 some of them. Compatible models include:
765 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
766 pca9670, pca9672, pca9674, pca9674a,
769 16 bits: pcf8575, pcf8575c, pca8575,
770 pca9671, pca9673, pca9675
772 Your board setup code will need to declare the expanders in
773 use, and assign numbers to the GPIOs they expose. Those GPIOs
774 can then be used from drivers and other kernel code, just like
775 other GPIOs, but only accessible from task contexts.
777 This driver provides an in-kernel interface to those GPIOs using
778 platform-neutral GPIO calls.
781 bool "Semtech SX150x I2C GPIO expander (deprecated)"
782 depends on PINCTRL && I2C=y
783 select PINCTRL_SX150X
786 Say yes here to provide support for Semtech SX150x-series I2C
787 GPIO expanders. The GPIO driver was replaced by a Pinctrl version.
790 tristate "TPIC2810 8-Bit I2C GPO expander"
792 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
794 To compile this driver as a module, choose M here: the module will
795 be called gpio-tpic2810.
798 tristate "Technologic Systems FPGA I2C GPIO"
799 depends on SOC_IMX6 || COMPILE_TEST
802 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
803 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
807 menu "MFD GPIO expanders"
810 tristate "GPIO Support for ADP5520 PMIC"
811 depends on PMIC_ADP5520
813 This option enables support for on-chip GPIO found
814 on Analog Devices ADP5520 PMICs.
816 config GPIO_ALTERA_A10SR
817 tristate "Altera Arria10 System Resource GPIO"
818 depends on MFD_ALTERA_A10SR
820 Driver for Arria10 Development Kit GPIO expansion which
821 includes reads of pushbuttons and DIP switches as well
825 tristate "Wolfson Microelectronics Arizona class devices"
826 depends on MFD_ARIZONA
828 Support for GPIOs on Wolfson Arizona class devices.
830 config GPIO_CRYSTAL_COVE
831 tristate "GPIO support for Crystal Cove PMIC"
832 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
833 select GPIOLIB_IRQCHIP
835 Support for GPIO pins on Crystal Cove PMIC.
837 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
840 This driver can also be built as a module. If so, the module will be
841 called gpio-crystalcove.
844 tristate "AMD CS5535/CS5536 GPIO support"
845 depends on X86 || MIPS || COMPILE_TEST
846 depends on MFD_CS5535
848 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
849 can be used for quite a number of things. The CS5535/6 is found on
850 AMD Geode and Lemote Yeeloong devices.
855 tristate "Dialog DA9052 GPIO"
856 depends on PMIC_DA9052
858 Say yes here to enable the GPIO driver for the DA9052 chip.
861 tristate "Dialog Semiconductor DA9055 GPIO"
862 depends on MFD_DA9055
864 Say yes here to enable the GPIO driver for the DA9055 chip.
866 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
867 be controller by this driver.
869 If driver is built as a module it will be called gpio-da9055.
872 tristate "Diolan DLN2 GPIO support"
874 select GPIOLIB_IRQCHIP
877 Select this option to enable GPIO driver for the Diolan DLN2
880 This driver can also be built as a module. If so, the module
881 will be called gpio-dln2.
884 bool "HTC EGPIO support"
885 depends on GPIOLIB && ARM
887 This driver supports the CPLD egpio chip present on
888 several HTC phones. It provides basic support for input
889 pins, output pins, and irqs.
892 tristate "Janz VMOD-TTL Digital IO Module"
893 depends on MFD_JANZ_CMODIO
895 This enables support for the Janz VMOD-TTL Digital IO module.
896 This driver provides support for driving the pins in output
897 mode only. Input mode is not supported.
900 tristate "Kontron ETX / COMexpress GPIO"
901 depends on MFD_KEMPLD
903 This enables support for the PLD GPIO interface on some Kontron ETX
904 and COMexpress (ETXexpress) modules.
906 This driver can also be built as a module. If so, the module will be
910 tristate "TI/National Semiconductor LP3943 GPIO expander"
911 depends on MFD_LP3943
913 GPIO driver for LP3943 MFD.
914 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
915 Open drain outputs are required for this usage.
918 tristate "TI LP873X GPO"
919 depends on MFD_TI_LP873X
921 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
924 This driver can also be built as a module. If so, the module will be
928 tristate "GPIO support for PMIC MAX77620 and MAX20024"
929 depends on MFD_MAX77620
931 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
932 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
933 driver also provides interrupt support for each of the gpios.
934 Say yes here to enable the max77620 to be used as gpio controller.
937 bool "Intel MSIC mixed signal gpio support"
938 depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
940 Enable support for GPIO on intel MSIC controllers found in
944 bool "TI PALMAS series PMICs GPIO"
945 depends on MFD_PALMAS
947 Select this option to enable GPIO driver for the TI PALMAS
951 bool "RICOH RC5T583 GPIO"
952 depends on MFD_RC5T583
954 Select this option to enable GPIO driver for the Ricoh RC5T583
956 This driver provides the support for driving/reading the gpio pins
957 of RC5T583 device through standard gpio library.
963 select GPIOLIB_IRQCHIP
965 This enables support for the GPIOs found on the STMPE I/O
970 depends on MFD_TC3589X
972 select GPIOLIB_IRQCHIP
974 This enables support for the GPIOs found on the TC3589X
977 config GPIO_TIMBERDALE
978 bool "Support for timberdale GPIO IP"
979 depends on MFD_TIMBERDALE
981 Add support for the GPIO IP in the timberdale FPGA.
984 tristate "TI TPS65086 GPO"
985 depends on MFD_TPS65086
987 This driver supports the GPO on TI TPS65086x PMICs.
990 tristate "TPS65218 GPIO"
991 depends on MFD_TPS65218
993 Select this option to enable GPIO driver for the TPS65218
998 depends on MFD_TPS6586X
1000 Select this option to enable GPIO driver for the TPS6586X
1003 config GPIO_TPS65910
1004 bool "TPS65910 GPIO"
1005 depends on MFD_TPS65910
1007 Select this option to enable GPIO driver for the TPS65910
1010 config GPIO_TPS65912
1011 tristate "TI TPS65912 GPIO"
1012 depends on MFD_TPS65912
1014 This driver supports TPS65912 gpio chip
1017 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1018 depends on TWL4030_CORE
1020 Say yes here to access the GPIO signals of various multi-function
1021 power management chips from Texas Instruments.
1024 tristate "TWL6040 GPO"
1025 depends on TWL6040_CORE
1027 Say yes here to access the GPO signals of twl6040
1028 audio chip from Texas Instruments.
1031 tristate "Philips UCB1400 GPIO"
1032 depends on UCB1400_CORE
1034 This enables support for the Philips UCB1400 GPIO pins.
1035 The UCB1400 is an AC97 audio codec.
1037 config GPIO_WHISKEY_COVE
1038 tristate "GPIO support for Whiskey Cove PMIC"
1039 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1040 select GPIOLIB_IRQCHIP
1042 Support for GPIO pins on Whiskey Cove PMIC.
1044 Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1047 This driver can also be built as a module. If so, the module will be
1051 tristate "WM831x GPIOs"
1052 depends on MFD_WM831X
1054 Say yes here to access the GPIO signals of WM831x power management
1055 chips from Wolfson Microelectronics.
1058 tristate "WM8350 GPIOs"
1059 depends on MFD_WM8350
1061 Say yes here to access the GPIO signals of WM8350 power management
1062 chips from Wolfson Microelectronics.
1065 tristate "WM8994 GPIOs"
1066 depends on MFD_WM8994
1068 Say yes here to access the GPIO signals of WM8994 audio hub
1069 CODECs from Wolfson Microelectronics.
1073 menu "PCI GPIO expanders"
1077 tristate "AMD 8111 GPIO driver"
1078 depends on X86 || COMPILE_TEST
1080 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1082 Note, that usually system firmware/ACPI handles GPIO pins on their
1083 own and users might easily break their systems with uncarefull usage
1089 tristate "BT8XX GPIO abuser"
1090 depends on VIDEO_BT848=n
1092 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1093 as a cheap PCI GPIO card.
1095 This chip can be found on Miro, Hauppauge and STB TV-cards.
1097 The card needs to be physically altered for using it as a
1098 GPIO card. For more information on how to build a GPIO card
1099 from a BT8xx TV card, see the documentation file at
1100 Documentation/bt8xxgpio.txt
1104 config GPIO_INTEL_MID
1105 bool "Intel MID GPIO support"
1106 depends on X86_INTEL_MID
1107 select GPIOLIB_IRQCHIP
1109 Say Y here to support Intel MID GPIO.
1111 config GPIO_MERRIFIELD
1112 tristate "Intel Merrifield GPIO support"
1113 depends on X86_INTEL_MID
1114 select GPIOLIB_IRQCHIP
1116 Say Y here to support Intel Merrifield GPIO.
1119 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1120 depends on X86 || COMPILE_TEST
1121 select GENERIC_IRQ_CHIP
1123 ML7213 is companion chip for Intel Atom E6xx series.
1124 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1125 Hub) which is for IVI(In-Vehicle Infotainment) use.
1126 This driver can access the IOH's GPIO device.
1129 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1130 depends on X86_32 || MIPS || COMPILE_TEST
1131 select GENERIC_IRQ_CHIP
1133 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1134 which is an IOH(Input/Output Hub) for x86 embedded processor.
1135 This driver can access PCH GPIO device.
1137 This driver also can be used for LAPIS Semiconductor IOH(Input/
1138 Output Hub), ML7223 and ML7831.
1139 ML7223 IOH is for MP(Media Phone) use.
1140 ML7831 IOH is for general purpose use.
1141 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1142 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1145 tristate "RDC R-321x GPIO support"
1149 Support for the RDC R321x SoC GPIOs over southbridge
1150 PCI configuration space.
1152 config GPIO_SODAVILLE
1153 bool "Intel Sodaville GPIO support"
1154 depends on X86 && OF
1156 select GENERIC_IRQ_CHIP
1158 Say Y here to support Intel Sodaville GPIO.
1162 menu "SPI GPIO expanders"
1163 depends on SPI_MASTER
1166 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1169 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1170 shift registers. This driver can be used to provide access
1171 to more gpio outputs.
1174 tristate "Maxim MAX7301 GPIO expander"
1177 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1180 tristate "Freescale MC33880 high-side/low-side switch"
1182 SPI driver for Freescale MC33880 high-side/low-side switch.
1183 This provides GPIO interface supporting inputs and outputs.
1186 tristate "Generic parallel-in/serial-out shift register"
1188 GPIO driver for SPI compatible parallel-in/serial-out shift
1189 registers. These are input only devices.
1193 menu "SPI or I2C GPIO expanders"
1194 depends on (SPI_MASTER && !I2C) || I2C
1196 config GPIO_MCP23S08
1197 tristate "Microchip MCP23xxx I/O expander"
1199 select GPIOLIB_IRQCHIP
1201 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
1203 This provides a GPIO interface supporting inputs and outputs.
1204 The I2C versions of the chips can be used as interrupt-controller.
1208 menu "USB GPIO expanders"
1211 config GPIO_VIPERBOARD
1212 tristate "Viperboard GPIO a & b support"
1213 depends on MFD_VIPERBOARD
1215 Say yes here to access the GPIO signals of Nano River
1216 Technologies Viperboard. There are two GPIO chips on the
1217 board: gpioa and gpiob.
1218 See viperboard API specification and Nano
1219 River Tech's viperboard.h for detailed meaning
1220 of the module parameters.