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 ARM && 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"
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 select GPIOLIB_IRQCHIP
525 Say yes here to support the GPIO device on ZTE ZX SoCs.
527 config GPIO_LOONGSON1
528 tristate "Loongson1 GPIO support"
529 depends on MACH_LOONGSON32
532 Say Y or M here to support GPIO on Loongson1 SoCs.
536 menu "Port-mapped I/O GPIO drivers"
537 depends on X86 # Unconditional I/O space access
539 config GPIO_104_DIO_48E
540 tristate "ACCES 104-DIO-48E GPIO support"
541 depends on ISA_BUS_API
542 select GPIOLIB_IRQCHIP
544 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
545 104-DIO-24E). The base port addresses for the devices may be
546 configured via the base module parameter. The interrupt line numbers
547 for the devices may be configured via the irq module parameter.
549 config GPIO_104_IDIO_16
550 tristate "ACCES 104-IDIO-16 GPIO support"
551 depends on ISA_BUS_API
552 select GPIOLIB_IRQCHIP
554 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
555 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
556 base port addresses for the devices may be configured via the base
557 module parameter. The interrupt line numbers for the devices may be
558 configured via the irq module parameter.
560 config GPIO_104_IDI_48
561 tristate "ACCES 104-IDI-48 GPIO support"
562 depends on ISA_BUS_API
563 select GPIOLIB_IRQCHIP
565 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
566 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
567 the devices may be configured via the base module parameter. The
568 interrupt line numbers for the devices may be configured via the irq
572 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
574 This option enables support for GPIOs found on Fintek Super-I/O
575 chips F71869, F71869A, F71882FG, F71889F and F81866.
577 To compile this driver as a module, choose M here: the module will
578 be called f7188x-gpio.
581 tristate "Diamond Systems GPIO-MM GPIO support"
582 depends on ISA_BUS_API
584 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
586 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
587 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
588 support for these 48 channels of digital I/O.
590 The base port addresses for the devices may be configured via the base
591 array module parameter.
594 tristate "IT87xx GPIO support"
596 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
598 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
599 supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
601 To compile this driver as a module, choose M here: the module will
605 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
610 Say yes here to support GPIO interface on Intel Poulsbo SCH,
611 Intel Tunnel Creek processor, Intel Centerton processor or
612 Intel Quark X1000 SoC.
614 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
615 powered by the core power rail and are turned off during sleep
616 modes (S3 and higher). The remaining four GPIOs are powered by
617 the Intel SCH suspend power supply. These GPIOs remain
618 active during S3. The suspend powered GPIOs can be used to wake the
619 system from the Suspend-to-RAM state.
621 The Intel Tunnel Creek processor has 5 GPIOs powered by the
622 core power rail and 9 from suspend power supply.
624 The Intel Centerton processor has a total of 30 GPIO pins.
625 Twenty-one are powered by the core power rail and 9 from the
626 suspend power supply.
628 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
629 power well and 6 from the suspend power well.
632 tristate "SMSC SCH311x SuperI/O GPIO"
634 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
635 SCH3116 "Super I/O" chipsets.
637 To compile this driver as a module, choose M here: the module will
638 be called gpio-sch311x.
641 tristate "TS-5500 DIO blocks and compatibles"
642 depends on TS5500 || COMPILE_TEST
644 This driver supports Digital I/O exposed by pin blocks found on some
645 Technologic Systems platforms. It includes, but is not limited to, 3
646 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
650 tristate "WinSystems WS16C48 GPIO support"
651 depends on ISA_BUS_API
652 select GPIOLIB_IRQCHIP
654 Enables GPIO support for the WinSystems WS16C48. The base port
655 addresses for the devices may be configured via the base module
656 parameter. The interrupt line numbers for the devices may be
657 configured via the irq module parameter.
661 menu "I2C GPIO expanders"
665 tristate "ADP5588 I2C GPIO expander"
667 This option enables support for 18 GPIOs found
668 on Analog Devices ADP5588 GPIO Expanders.
670 config GPIO_ADP5588_IRQ
671 bool "Interrupt controller support for ADP5588"
672 depends on GPIO_ADP5588=y
673 select GPIOLIB_IRQCHIP
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"
783 select GPIOLIB_IRQCHIP
786 Say yes here to provide support for Semtech SX150-series I2C
787 GPIO expanders. Compatible models include:
793 tristate "TPIC2810 8-Bit I2C GPO expander"
795 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
797 To compile this driver as a module, choose M here: the module will
798 be called gpio-tpic2810.
801 tristate "Technologic Systems FPGA I2C GPIO"
804 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
805 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
809 menu "MFD GPIO expanders"
812 tristate "GPIO Support for ADP5520 PMIC"
813 depends on PMIC_ADP5520
815 This option enables support for on-chip GPIO found
816 on Analog Devices ADP5520 PMICs.
819 tristate "Wolfson Microelectronics Arizona class devices"
820 depends on MFD_ARIZONA
822 Support for GPIOs on Wolfson Arizona class devices.
824 config GPIO_CRYSTAL_COVE
825 tristate "GPIO support for Crystal Cove PMIC"
826 depends on INTEL_SOC_PMIC
827 select GPIOLIB_IRQCHIP
829 Support for GPIO pins on Crystal Cove PMIC.
831 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
834 This driver can also be built as a module. If so, the module will be
835 called gpio-crystalcove.
838 tristate "AMD CS5535/CS5536 GPIO support"
839 depends on MFD_CS5535
841 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
842 can be used for quite a number of things. The CS5535/6 is found on
843 AMD Geode and Lemote Yeeloong devices.
848 tristate "Dialog DA9052 GPIO"
849 depends on PMIC_DA9052
851 Say yes here to enable the GPIO driver for the DA9052 chip.
854 tristate "Dialog Semiconductor DA9055 GPIO"
855 depends on MFD_DA9055
857 Say yes here to enable the GPIO driver for the DA9055 chip.
859 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
860 be controller by this driver.
862 If driver is built as a module it will be called gpio-da9055.
865 tristate "Diolan DLN2 GPIO support"
867 select GPIOLIB_IRQCHIP
870 Select this option to enable GPIO driver for the Diolan DLN2
873 This driver can also be built as a module. If so, the module
874 will be called gpio-dln2.
877 bool "HTC EGPIO support"
878 depends on GPIOLIB && ARM
880 This driver supports the CPLD egpio chip present on
881 several HTC phones. It provides basic support for input
882 pins, output pins, and irqs.
885 tristate "Janz VMOD-TTL Digital IO Module"
886 depends on MFD_JANZ_CMODIO
888 This enables support for the Janz VMOD-TTL Digital IO module.
889 This driver provides support for driving the pins in output
890 mode only. Input mode is not supported.
893 tristate "Kontron ETX / COMexpress GPIO"
894 depends on MFD_KEMPLD
896 This enables support for the PLD GPIO interface on some Kontron ETX
897 and COMexpress (ETXexpress) modules.
899 This driver can also be built as a module. If so, the module will be
903 tristate "TI/National Semiconductor LP3943 GPIO expander"
904 depends on MFD_LP3943
906 GPIO driver for LP3943 MFD.
907 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
908 Open drain outputs are required for this usage.
911 tristate "TI LP873X GPO"
912 depends on MFD_TI_LP873X
914 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
917 This driver can also be built as a module. If so, the module will be
921 tristate "GPIO support for PMIC MAX77620 and MAX20024"
922 depends on MFD_MAX77620
923 select GPIOLIB_IRQCHIP
925 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
926 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
927 driver also provides interrupt support for each of the gpios.
928 Say yes here to enable the max77620 to be used as gpio controller.
931 bool "Intel MSIC mixed signal gpio support"
932 depends on MFD_INTEL_MSIC
934 Enable support for GPIO on intel MSIC controllers found in
938 bool "TI PALMAS series PMICs GPIO"
939 depends on MFD_PALMAS
941 Select this option to enable GPIO driver for the TI PALMAS
945 bool "RICOH RC5T583 GPIO"
946 depends on MFD_RC5T583
948 Select this option to enable GPIO driver for the Ricoh RC5T583
950 This driver provides the support for driving/reading the gpio pins
951 of RC5T583 device through standard gpio library.
957 select GPIOLIB_IRQCHIP
959 This enables support for the GPIOs found on the STMPE I/O
964 depends on MFD_TC3589X
966 select GPIOLIB_IRQCHIP
968 This enables support for the GPIOs found on the TC3589X
971 config GPIO_TIMBERDALE
972 bool "Support for timberdale GPIO IP"
973 depends on MFD_TIMBERDALE
975 Add support for the GPIO IP in the timberdale FPGA.
978 tristate "TI TPS65086 GPO"
979 depends on MFD_TPS65086
981 This driver supports the GPO on TI TPS65086x PMICs.
984 tristate "TPS65218 GPIO"
985 depends on MFD_TPS65218
987 Select this option to enable GPIO driver for the TPS65218
992 depends on MFD_TPS6586X
994 Select this option to enable GPIO driver for the TPS6586X
999 depends on MFD_TPS65910
1001 Select this option to enable GPIO driver for the TPS65910
1004 config GPIO_TPS65912
1005 tristate "TI TPS65912 GPIO"
1006 depends on MFD_TPS65912
1008 This driver supports TPS65912 gpio chip
1011 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1012 depends on TWL4030_CORE
1014 Say yes here to access the GPIO signals of various multi-function
1015 power management chips from Texas Instruments.
1018 tristate "TWL6040 GPO"
1019 depends on TWL6040_CORE
1021 Say yes here to access the GPO signals of twl6040
1022 audio chip from Texas Instruments.
1025 tristate "Philips UCB1400 GPIO"
1026 depends on UCB1400_CORE
1028 This enables support for the Philips UCB1400 GPIO pins.
1029 The UCB1400 is an AC97 audio codec.
1031 config GPIO_WHISKEY_COVE
1032 tristate "GPIO support for Whiskey Cove PMIC"
1033 depends on INTEL_SOC_PMIC
1034 select GPIOLIB_IRQCHIP
1036 Support for GPIO pins on Whiskey Cove PMIC.
1038 Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1041 This driver can also be built as a module. If so, the module will be
1045 tristate "WM831x GPIOs"
1046 depends on MFD_WM831X
1048 Say yes here to access the GPIO signals of WM831x power management
1049 chips from Wolfson Microelectronics.
1052 tristate "WM8350 GPIOs"
1053 depends on MFD_WM8350
1055 Say yes here to access the GPIO signals of WM8350 power management
1056 chips from Wolfson Microelectronics.
1059 tristate "WM8994 GPIOs"
1060 depends on MFD_WM8994
1062 Say yes here to access the GPIO signals of WM8994 audio hub
1063 CODECs from Wolfson Microelectronics.
1067 menu "PCI GPIO expanders"
1071 tristate "AMD 8111 GPIO driver"
1073 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1075 Note, that usually system firmware/ACPI handles GPIO pins on their
1076 own and users might easily break their systems with uncarefull usage
1082 tristate "BT8XX GPIO abuser"
1083 depends on VIDEO_BT848=n
1085 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1086 as a cheap PCI GPIO card.
1088 This chip can be found on Miro, Hauppauge and STB TV-cards.
1090 The card needs to be physically altered for using it as a
1091 GPIO card. For more information on how to build a GPIO card
1092 from a BT8xx TV card, see the documentation file at
1093 Documentation/bt8xxgpio.txt
1097 config GPIO_INTEL_MID
1098 bool "Intel MID GPIO support"
1099 depends on X86_INTEL_MID
1100 select GPIOLIB_IRQCHIP
1102 Say Y here to support Intel MID GPIO.
1104 config GPIO_MERRIFIELD
1105 tristate "Intel Merrifield GPIO support"
1106 depends on X86_INTEL_MID
1107 select GPIOLIB_IRQCHIP
1109 Say Y here to support Intel Merrifield GPIO.
1112 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1113 select GENERIC_IRQ_CHIP
1115 ML7213 is companion chip for Intel Atom E6xx series.
1116 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1117 Hub) which is for IVI(In-Vehicle Infotainment) use.
1118 This driver can access the IOH's GPIO device.
1121 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1122 depends on X86_32 || MIPS || COMPILE_TEST
1123 select GENERIC_IRQ_CHIP
1125 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1126 which is an IOH(Input/Output Hub) for x86 embedded processor.
1127 This driver can access PCH GPIO device.
1129 This driver also can be used for LAPIS Semiconductor IOH(Input/
1130 Output Hub), ML7223 and ML7831.
1131 ML7223 IOH is for MP(Media Phone) use.
1132 ML7831 IOH is for general purpose use.
1133 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1134 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1137 tristate "RDC R-321x GPIO support"
1141 Support for the RDC R321x SoC GPIOs over southbridge
1142 PCI configuration space.
1144 config GPIO_SODAVILLE
1145 bool "Intel Sodaville GPIO support"
1146 depends on X86 && OF
1148 select GENERIC_IRQ_CHIP
1150 Say Y here to support Intel Sodaville GPIO.
1154 menu "SPI GPIO expanders"
1155 depends on SPI_MASTER
1158 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1161 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1162 shift registers. This driver can be used to provide access
1163 to more gpio outputs.
1166 tristate "Maxim MAX7301 GPIO expander"
1169 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1172 tristate "Freescale MC33880 high-side/low-side switch"
1174 SPI driver for Freescale MC33880 high-side/low-side switch.
1175 This provides GPIO interface supporting inputs and outputs.
1178 tristate "Generic parallel-in/serial-out shift register"
1180 GPIO driver for SPI compatible parallel-in/serial-out shift
1181 registers. These are input only devices.
1185 menu "SPI or I2C GPIO expanders"
1186 depends on (SPI_MASTER && !I2C) || I2C
1188 config GPIO_MCP23S08
1189 tristate "Microchip MCP23xxx I/O expander"
1191 select GPIOLIB_IRQCHIP
1192 select REGMAP_I2C if I2C
1193 select REGMAP if SPI_MASTER
1195 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
1197 This provides a GPIO interface supporting inputs and outputs.
1198 The I2C versions of the chips can be used as interrupt-controller.
1202 menu "USB GPIO expanders"
1205 config GPIO_VIPERBOARD
1206 tristate "Viperboard GPIO a & b support"
1207 depends on MFD_VIPERBOARD
1209 Say yes here to access the GPIO signals of Nano River
1210 Technologies Viperboard. There are two GPIO chips on the
1211 board: gpioa and gpiob.
1212 See viperboard API specification and Nano
1213 River Tech's viperboard.h for detailed meaning
1214 of the module parameters.