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 tristate "Support for GPIO pins on XR17V352/354/358"
190 depends on SERIAL_8250_EXAR
192 Selecting this option will enable handling of GPIO pins present
193 on Exar XR17V352/354/358 chips.
196 bool "GE FPGA based GPIO"
200 Support for common GPIO functionality provided on some GE Single Board
203 This driver provides basic support (configure as input or output, read
204 and write pin state) for GPIO implemented in a number of GE single
207 config GPIO_FTGPIO010
208 bool "Faraday FTGPIO010 GPIO"
211 select GPIOLIB_IRQCHIP
212 default (ARCH_GEMINI || ARCH_MOXART)
214 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
215 Cortina systems Gemini platforms, Moxa ART and others.
217 config GPIO_GENERIC_PLATFORM
218 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
221 Say yes here to support basic platform_device memory-mapped GPIO controllers.
224 tristate "Aeroflex Gaisler GRGPIO support"
229 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
230 VHDL IP core library.
233 tristate "Intel ICH GPIO"
234 depends on PCI && X86
238 Say yes here to support the GPIO functionality of a number of Intel
239 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
240 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
241 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
246 tristate "Intel IOP GPIO"
247 depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST
250 Say yes here to support the GPIO functionality of a number of Intel
256 bool "Loongson-2/3 GPIO support"
257 depends on CPU_LOONGSON2 || CPU_LOONGSON3
259 driver for GPIO functionality on Loongson-2F/3A/3B processors.
262 tristate "NXP LPC18XX/43XX GPIO support"
263 default y if ARCH_LPC18XX
264 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
266 Select this option to enable GPIO driver for
267 NXP LPC18XX/43XX devices.
269 config GPIO_LYNXPOINT
270 tristate "Intel Lynxpoint GPIO support"
271 depends on ACPI && X86
272 select GPIOLIB_IRQCHIP
274 driver for GPIO functionality on Intel Lynxpoint PCH chipset
275 Requires ACPI device enumeration code to set up a platform device.
278 bool "GPIO support for Fujitsu MB86S7x Platforms"
279 depends on ARCH_MB86S7X || COMPILE_TEST
281 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
284 tristate "MEN 16Z127 GPIO support"
288 Say yes here to support the MEN 16Z127 GPIO Controller
290 config GPIO_MM_LANTIQ
291 bool "Lantiq Memory mapped GPIOs"
292 depends on LANTIQ && SOC_XWAY
294 This enables support for memory mapped GPIOs on the External Bus Unit
295 (EBU) found on Lantiq SoCs. The gpios are output only as they are
296 created by attaching a 16bit latch to the bus.
299 tristate "GPIO Testing Driver"
300 depends on GPIOLIB && SYSFS
302 select GPIOLIB_IRQCHIP
305 This enables GPIO Testing driver, which provides a way to test GPIO
306 subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
307 must be selected for this test.
308 User could use it through the script in
309 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
314 depends on PPC_MPC52xx
317 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
318 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
319 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
324 Say Y here if you're going to use hardware that connects to the
325 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
329 depends on PLAT_ORION
331 select GENERIC_IRQ_CHIP
337 select GENERIC_IRQ_CHIP
343 select GENERIC_IRQ_CHIP
346 tristate "Cavium OCTEON GPIO"
347 depends on GPIOLIB && CAVIUM_OCTEON_SOC
350 Say yes here to support the on-chip GPIO lines on the OCTEON
354 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
355 default y if ARCH_OMAP
357 select GENERIC_IRQ_CHIP
358 select GPIOLIB_IRQCHIP
360 Say yes here to enable GPIO support for TI OMAP SoCs.
363 bool "PrimeCell PL061 GPIO support"
366 select GPIOLIB_IRQCHIP
368 Say yes here to support the PrimeCell PL061 GPIO device
371 bool "PXA GPIO support"
372 depends on ARCH_PXA || ARCH_MMP
374 Say yes here to support the PXA GPIO device
377 tristate "Renesas R-Car GPIO"
378 depends on ARCH_RENESAS || COMPILE_TEST
379 select GPIOLIB_IRQCHIP
381 Say yes here to support GPIO on Renesas R-Car SoCs.
386 A 32-bit single register GPIO fixed in/out implementation. This
387 can be used to represent any register as a set of GPIO signals.
389 config GPIO_SPEAR_SPICS
390 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
391 depends on PLAT_SPEAR
392 select GENERIC_IRQ_CHIP
394 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
397 bool "STA2x11/ConneXt GPIO support"
398 depends on MFD_STA2X11
399 select GENERIC_IRQ_CHIP
401 Say yes here to support the STA2x11/ConneXt GPIO device.
402 The GPIO module has 128 GPIO pins with alternate functions.
405 bool "XWAY STP GPIOs"
408 This enables support for the Serial To Parallel (STP) unit found on
409 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
410 that can be up to 24 bit. This peripheral is aimed at driving leds.
411 Some of the gpios/leds can be auto updated by the soc with dsl and
415 tristate "GPIO based on SYSCON"
416 depends on MFD_SYSCON && OF
418 Say yes here to support GPIO functionality though SYSCON driver.
422 select GENERIC_IRQ_CHIP
426 bool "NVIDIA Tegra GPIO support"
428 depends on ARCH_TEGRA || COMPILE_TEST
431 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
434 tristate "TS-4800 DIO blocks and compatibles"
436 depends on SOC_IMX51 || COMPILE_TEST
439 This driver support TS-4800 FPGA GPIO controllers.
442 bool "Toumaz Xenif TZ1090 GPIO support"
443 depends on SOC_TZ1090
444 select GENERIC_IRQ_CHIP
447 Say yes here to support Toumaz Xenif TZ1090 GPIOs.
449 config GPIO_TZ1090_PDC
450 bool "Toumaz Xenif TZ1090 PDC GPIO support"
451 depends on SOC_TZ1090
454 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
458 depends on ARCH_MXC && SOC_VF610
459 select GPIOLIB_IRQCHIP
461 Say yes here to support Vybrid vf610 GPIOs.
464 tristate "NEC VR4100 series General-purpose I/O Uint support"
465 depends on CPU_VR41XX
467 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
470 tristate "VIA VX855/VX875 GPIO"
471 depends on (X86 || COMPILE_TEST) && PCI
475 Support access to the VX855/VX875 GPIO lines through the gpio library.
477 This driver provides common support for accessing the device,
478 additional drivers must be enabled in order to use the
479 functionality of the device.
482 bool "APM X-Gene GPIO controller support"
483 depends on ARM64 && OF_GPIO
485 This driver is to support the GPIO block within the APM X-Gene SoC
486 platform's generic flash controller. The GPIO pins are muxed with
487 the generic flash controller's address and data pins. Say yes
488 here to enable the GFC GPIO functionality.
491 tristate "APM X-Gene GPIO standby controller support"
492 depends on ARCH_XGENE && OF_GPIO
494 select GPIOLIB_IRQCHIP
496 This driver supports the GPIO block within the APM X-Gene
497 Standby Domain. Say yes here to enable the GPIO functionality.
500 tristate "Xilinx GPIO support"
503 Say yes here to support the Xilinx FPGA GPIO device
506 tristate "Netlogic XLP GPIO support"
507 depends on OF_GPIO && (CPU_XLP || ARCH_VULCAN || ARCH_THUNDER2 || COMPILE_TEST)
508 select GPIOLIB_IRQCHIP
510 This driver provides support for GPIO interface on Netlogic XLP MIPS64
511 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
517 bool "Xtensa GPIO32 support"
519 depends on HAVE_XTENSA_GPIO32
522 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
523 and EXPSTATE (output) ports
526 bool "LSI ZEVIO SoC memory mapped GPIOs"
527 depends on ARM && OF_GPIO
529 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
532 tristate "Xilinx Zynq GPIO support"
533 depends on ARCH_ZYNQ || ARCH_ZYNQMP
534 select GPIOLIB_IRQCHIP
536 Say yes here to support Xilinx Zynq GPIO controller.
539 bool "ZTE ZX GPIO support"
540 depends on ARCH_ZX || COMPILE_TEST
541 select GPIOLIB_IRQCHIP
543 Say yes here to support the GPIO device on ZTE ZX SoCs.
545 config GPIO_LOONGSON1
546 tristate "Loongson1 GPIO support"
547 depends on MACH_LOONGSON32
550 Say Y or M here to support GPIO on Loongson1 SoCs.
554 menu "Port-mapped I/O GPIO drivers"
555 depends on X86 # Unconditional I/O space access
557 config GPIO_104_DIO_48E
558 tristate "ACCES 104-DIO-48E GPIO support"
559 depends on PC104 && ISA_BUS_API
560 select GPIOLIB_IRQCHIP
562 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
563 104-DIO-24E). The base port addresses for the devices may be
564 configured via the base module parameter. The interrupt line numbers
565 for the devices may be configured via the irq module parameter.
567 config GPIO_104_IDIO_16
568 tristate "ACCES 104-IDIO-16 GPIO support"
569 depends on PC104 && ISA_BUS_API
570 select GPIOLIB_IRQCHIP
572 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
573 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
574 base port addresses for the devices may be configured via the base
575 module parameter. The interrupt line numbers for the devices may be
576 configured via the irq module parameter.
578 config GPIO_104_IDI_48
579 tristate "ACCES 104-IDI-48 GPIO support"
580 depends on PC104 && ISA_BUS_API
581 select GPIOLIB_IRQCHIP
583 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
584 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
585 the devices may be configured via the base module parameter. The
586 interrupt line numbers for the devices may be configured via the irq
590 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
592 This option enables support for GPIOs found on Fintek Super-I/O
593 chips F71869, F71869A, F71882FG, F71889F and F81866.
595 To compile this driver as a module, choose M here: the module will
596 be called f7188x-gpio.
599 tristate "Diamond Systems GPIO-MM GPIO support"
600 depends on PC104 && ISA_BUS_API
602 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
604 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
605 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
606 support for these 48 channels of digital I/O.
608 The base port addresses for the devices may be configured via the base
609 array module parameter.
612 tristate "IT87xx GPIO support"
614 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
616 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
617 supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
619 To compile this driver as a module, choose M here: the module will
623 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
624 depends on (X86 || COMPILE_TEST) && PCI
628 Say yes here to support GPIO interface on Intel Poulsbo SCH,
629 Intel Tunnel Creek processor, Intel Centerton processor or
630 Intel Quark X1000 SoC.
632 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
633 powered by the core power rail and are turned off during sleep
634 modes (S3 and higher). The remaining four GPIOs are powered by
635 the Intel SCH suspend power supply. These GPIOs remain
636 active during S3. The suspend powered GPIOs can be used to wake the
637 system from the Suspend-to-RAM state.
639 The Intel Tunnel Creek processor has 5 GPIOs powered by the
640 core power rail and 9 from suspend power supply.
642 The Intel Centerton processor has a total of 30 GPIO pins.
643 Twenty-one are powered by the core power rail and 9 from the
644 suspend power supply.
646 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
647 power well and 6 from the suspend power well.
650 tristate "SMSC SCH311x SuperI/O GPIO"
652 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
653 SCH3116 "Super I/O" chipsets.
655 To compile this driver as a module, choose M here: the module will
656 be called gpio-sch311x.
659 tristate "TS-5500 DIO blocks and compatibles"
660 depends on TS5500 || COMPILE_TEST
662 This driver supports Digital I/O exposed by pin blocks found on some
663 Technologic Systems platforms. It includes, but is not limited to, 3
664 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
668 tristate "WinSystems WS16C48 GPIO support"
669 depends on ISA_BUS_API
670 select GPIOLIB_IRQCHIP
672 Enables GPIO support for the WinSystems WS16C48. The base port
673 addresses for the devices may be configured via the base module
674 parameter. The interrupt line numbers for the devices may be
675 configured via the irq module parameter.
679 menu "I2C GPIO expanders"
683 tristate "ADP5588 I2C GPIO expander"
685 This option enables support for 18 GPIOs found
686 on Analog Devices ADP5588 GPIO Expanders.
688 config GPIO_ADP5588_IRQ
689 bool "Interrupt controller support for ADP5588"
690 depends on GPIO_ADP5588=y
692 Say yes here to enable the adp5588 to be used as an interrupt
693 controller. It requires the driver to be built in the kernel.
696 tristate "Avionic Design N-bit GPIO expander"
698 select GPIOLIB_IRQCHIP
700 This option enables support for N GPIOs found on Avionic Design
701 I2C GPIO expanders. The register space will be extended by powers
702 of two, so the controller will need to accommodate for that. For
703 example: if a controller provides 48 pins, 6 registers will be
704 enough to represent all pins, but the driver will assume a
705 register layout for 64 pins (8 registers).
708 tristate "Maxim MAX7300 GPIO expander"
711 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
714 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
716 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
717 Port Expanders. Each IO port on these chips has a fixed role of
718 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
719 Input and Output (designed by 'P'). The combinations are listed
722 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
723 max7322 (4I4O), max7323 (4P4O)
725 16 bits: max7324 (8I8O), max7325 (8P8O),
726 max7326 (4I12O), max7327 (4P12O)
728 Board setup code must specify the model to use, and the start
729 number for these GPIOs.
731 config GPIO_MAX732X_IRQ
732 bool "Interrupt controller support for MAX732x"
733 depends on GPIO_MAX732X=y
734 select GPIOLIB_IRQCHIP
736 Say yes here to enable the max732x to be used as an interrupt
737 controller. It requires the driver to be built in the kernel.
739 config GPIO_MC9S08DZ60
740 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
741 depends on I2C=y && MACH_MX35_3DS
743 Select this to enable the MC9S08DZ60 GPIO driver
746 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
748 Say yes here to provide access to several register-oriented
749 SMBus I/O expanders, made mostly by NXP or TI. Compatible
752 4 bits: pca9536, pca9537
754 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
755 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
757 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
762 40 bits: pca9505, pca9698
764 config GPIO_PCA953X_IRQ
765 bool "Interrupt controller support for PCA953x"
766 depends on GPIO_PCA953X=y
767 select GPIOLIB_IRQCHIP
769 Say yes here to enable the pca953x to be used as an interrupt
770 controller. It requires the driver to be built in the kernel.
773 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
774 select GPIOLIB_IRQCHIP
777 Say yes here to provide access to most "quasi-bidirectional" I2C
778 GPIO expanders used for additional digital outputs or inputs.
779 Most of these parts are from NXP, though TI is a second source for
780 some of them. Compatible models include:
782 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
783 pca9670, pca9672, pca9674, pca9674a,
786 16 bits: pcf8575, pcf8575c, pca8575,
787 pca9671, pca9673, pca9675
789 Your board setup code will need to declare the expanders in
790 use, and assign numbers to the GPIOs they expose. Those GPIOs
791 can then be used from drivers and other kernel code, just like
792 other GPIOs, but only accessible from task contexts.
794 This driver provides an in-kernel interface to those GPIOs using
795 platform-neutral GPIO calls.
798 bool "Semtech SX150x I2C GPIO expander (deprecated)"
799 depends on PINCTRL && I2C=y
800 select PINCTRL_SX150X
803 Say yes here to provide support for Semtech SX150x-series I2C
804 GPIO expanders. The GPIO driver was replaced by a Pinctrl version.
807 tristate "TPIC2810 8-Bit I2C GPO expander"
809 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
811 To compile this driver as a module, choose M here: the module will
812 be called gpio-tpic2810.
815 tristate "Technologic Systems FPGA I2C GPIO"
816 depends on SOC_IMX6 || COMPILE_TEST
819 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
820 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
824 menu "MFD GPIO expanders"
827 tristate "GPIO Support for ADP5520 PMIC"
828 depends on PMIC_ADP5520
830 This option enables support for on-chip GPIO found
831 on Analog Devices ADP5520 PMICs.
833 config GPIO_ALTERA_A10SR
834 tristate "Altera Arria10 System Resource GPIO"
835 depends on MFD_ALTERA_A10SR
837 Driver for Arria10 Development Kit GPIO expansion which
838 includes reads of pushbuttons and DIP switches as well
842 tristate "Wolfson Microelectronics Arizona class devices"
843 depends on MFD_ARIZONA
845 Support for GPIOs on Wolfson Arizona class devices.
847 config GPIO_BD9571MWV
848 tristate "ROHM BD9571 GPIO support"
849 depends on MFD_BD9571MWV
851 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
852 available on the ROHM PMIC in total, both of which can also
855 This driver can also be built as a module. If so, the module
856 will be called gpio-bd9571mwv.
858 config GPIO_CRYSTAL_COVE
859 tristate "GPIO support for Crystal Cove PMIC"
860 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
861 select GPIOLIB_IRQCHIP
863 Support for GPIO pins on Crystal Cove PMIC.
865 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
868 This driver can also be built as a module. If so, the module will be
869 called gpio-crystalcove.
872 tristate "AMD CS5535/CS5536 GPIO support"
873 depends on X86 || MIPS || COMPILE_TEST
874 depends on MFD_CS5535
876 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
877 can be used for quite a number of things. The CS5535/6 is found on
878 AMD Geode and Lemote Yeeloong devices.
883 tristate "Dialog DA9052 GPIO"
884 depends on PMIC_DA9052
886 Say yes here to enable the GPIO driver for the DA9052 chip.
889 tristate "Dialog Semiconductor DA9055 GPIO"
890 depends on MFD_DA9055
892 Say yes here to enable the GPIO driver for the DA9055 chip.
894 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
895 be controller by this driver.
897 If driver is built as a module it will be called gpio-da9055.
900 tristate "Diolan DLN2 GPIO support"
902 select GPIOLIB_IRQCHIP
905 Select this option to enable GPIO driver for the Diolan DLN2
908 This driver can also be built as a module. If so, the module
909 will be called gpio-dln2.
912 bool "HTC EGPIO support"
913 depends on GPIOLIB && ARM
915 This driver supports the CPLD egpio chip present on
916 several HTC phones. It provides basic support for input
917 pins, output pins, and irqs.
920 tristate "Janz VMOD-TTL Digital IO Module"
921 depends on MFD_JANZ_CMODIO
923 This enables support for the Janz VMOD-TTL Digital IO module.
924 This driver provides support for driving the pins in output
925 mode only. Input mode is not supported.
928 tristate "Kontron ETX / COMexpress GPIO"
929 depends on MFD_KEMPLD
931 This enables support for the PLD GPIO interface on some Kontron ETX
932 and COMexpress (ETXexpress) modules.
934 This driver can also be built as a module. If so, the module will be
938 tristate "TI/National Semiconductor LP3943 GPIO expander"
939 depends on MFD_LP3943
941 GPIO driver for LP3943 MFD.
942 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
943 Open drain outputs are required for this usage.
946 tristate "TI LP873X GPO"
947 depends on MFD_TI_LP873X
949 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
952 This driver can also be built as a module. If so, the module will be
956 tristate "GPIO support for PMIC MAX77620 and MAX20024"
957 depends on MFD_MAX77620
959 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
960 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
961 driver also provides interrupt support for each of the gpios.
962 Say yes here to enable the max77620 to be used as gpio controller.
965 bool "Intel MSIC mixed signal gpio support"
966 depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
968 Enable support for GPIO on intel MSIC controllers found in
972 bool "TI PALMAS series PMICs GPIO"
973 depends on MFD_PALMAS
975 Select this option to enable GPIO driver for the TI PALMAS
979 bool "RICOH RC5T583 GPIO"
980 depends on MFD_RC5T583
982 Select this option to enable GPIO driver for the Ricoh RC5T583
984 This driver provides the support for driving/reading the gpio pins
985 of RC5T583 device through standard gpio library.
991 select GPIOLIB_IRQCHIP
993 This enables support for the GPIOs found on the STMPE I/O
998 depends on MFD_TC3589X
1000 select GPIOLIB_IRQCHIP
1002 This enables support for the GPIOs found on the TC3589X
1005 config GPIO_TIMBERDALE
1006 bool "Support for timberdale GPIO IP"
1007 depends on MFD_TIMBERDALE
1009 Add support for the GPIO IP in the timberdale FPGA.
1011 config GPIO_TPS65086
1012 tristate "TI TPS65086 GPO"
1013 depends on MFD_TPS65086
1015 This driver supports the GPO on TI TPS65086x PMICs.
1017 config GPIO_TPS65218
1018 tristate "TPS65218 GPIO"
1019 depends on MFD_TPS65218
1021 Select this option to enable GPIO driver for the TPS65218
1024 config GPIO_TPS6586X
1025 bool "TPS6586X GPIO"
1026 depends on MFD_TPS6586X
1028 Select this option to enable GPIO driver for the TPS6586X
1031 config GPIO_TPS65910
1032 bool "TPS65910 GPIO"
1033 depends on MFD_TPS65910
1035 Select this option to enable GPIO driver for the TPS65910
1038 config GPIO_TPS65912
1039 tristate "TI TPS65912 GPIO"
1040 depends on MFD_TPS65912
1042 This driver supports TPS65912 gpio chip
1045 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1046 depends on TWL4030_CORE
1048 Say yes here to access the GPIO signals of various multi-function
1049 power management chips from Texas Instruments.
1052 tristate "TWL6040 GPO"
1053 depends on TWL6040_CORE
1055 Say yes here to access the GPO signals of twl6040
1056 audio chip from Texas Instruments.
1059 tristate "Philips UCB1400 GPIO"
1060 depends on UCB1400_CORE
1062 This enables support for the Philips UCB1400 GPIO pins.
1063 The UCB1400 is an AC97 audio codec.
1065 config GPIO_WHISKEY_COVE
1066 tristate "GPIO support for Whiskey Cove PMIC"
1067 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1068 select GPIOLIB_IRQCHIP
1070 Support for GPIO pins on Whiskey Cove PMIC.
1072 Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1075 This driver can also be built as a module. If so, the module will be
1079 tristate "WM831x GPIOs"
1080 depends on MFD_WM831X
1082 Say yes here to access the GPIO signals of WM831x power management
1083 chips from Wolfson Microelectronics.
1086 tristate "WM8350 GPIOs"
1087 depends on MFD_WM8350
1089 Say yes here to access the GPIO signals of WM8350 power management
1090 chips from Wolfson Microelectronics.
1093 tristate "WM8994 GPIOs"
1094 depends on MFD_WM8994
1096 Say yes here to access the GPIO signals of WM8994 audio hub
1097 CODECs from Wolfson Microelectronics.
1101 menu "PCI GPIO expanders"
1105 tristate "AMD 8111 GPIO driver"
1106 depends on X86 || COMPILE_TEST
1108 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1110 Note, that usually system firmware/ACPI handles GPIO pins on their
1111 own and users might easily break their systems with uncarefull usage
1117 tristate "BT8XX GPIO abuser"
1118 depends on VIDEO_BT848=n
1120 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1121 as a cheap PCI GPIO card.
1123 This chip can be found on Miro, Hauppauge and STB TV-cards.
1125 The card needs to be physically altered for using it as a
1126 GPIO card. For more information on how to build a GPIO card
1127 from a BT8xx TV card, see the documentation file at
1128 Documentation/bt8xxgpio.txt
1132 config GPIO_INTEL_MID
1133 bool "Intel MID GPIO support"
1134 depends on X86_INTEL_MID
1135 select GPIOLIB_IRQCHIP
1137 Say Y here to support Intel MID GPIO.
1139 config GPIO_MERRIFIELD
1140 tristate "Intel Merrifield GPIO support"
1141 depends on X86_INTEL_MID
1142 select GPIOLIB_IRQCHIP
1144 Say Y here to support Intel Merrifield GPIO.
1147 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1148 depends on X86 || COMPILE_TEST
1149 select GENERIC_IRQ_CHIP
1151 ML7213 is companion chip for Intel Atom E6xx series.
1152 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1153 Hub) which is for IVI(In-Vehicle Infotainment) use.
1154 This driver can access the IOH's GPIO device.
1157 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1158 depends on X86_32 || MIPS || COMPILE_TEST
1159 select GENERIC_IRQ_CHIP
1161 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1162 which is an IOH(Input/Output Hub) for x86 embedded processor.
1163 This driver can access PCH GPIO device.
1165 This driver also can be used for LAPIS Semiconductor IOH(Input/
1166 Output Hub), ML7223 and ML7831.
1167 ML7223 IOH is for MP(Media Phone) use.
1168 ML7831 IOH is for general purpose use.
1169 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1170 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1172 config GPIO_PCI_IDIO_16
1173 tristate "ACCES PCI-IDIO-16 GPIO support"
1174 select GPIOLIB_IRQCHIP
1176 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1177 generated when any of the inputs change state (low to high or high to
1178 low). Input filter control is not supported by this driver, and the
1179 input filters are deactivated by this driver.
1182 tristate "RDC R-321x GPIO support"
1186 Support for the RDC R321x SoC GPIOs over southbridge
1187 PCI configuration space.
1189 config GPIO_SODAVILLE
1190 bool "Intel Sodaville GPIO support"
1191 depends on X86 && OF
1193 select GENERIC_IRQ_CHIP
1195 Say Y here to support Intel Sodaville GPIO.
1199 menu "SPI GPIO expanders"
1200 depends on SPI_MASTER
1203 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1206 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1207 shift registers. This driver can be used to provide access
1208 to more gpio outputs.
1211 tristate "Maxim MAX7301 GPIO expander"
1214 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1217 tristate "Freescale MC33880 high-side/low-side switch"
1219 SPI driver for Freescale MC33880 high-side/low-side switch.
1220 This provides GPIO interface supporting inputs and outputs.
1223 tristate "Generic parallel-in/serial-out shift register"
1225 GPIO driver for SPI compatible parallel-in/serial-out shift
1226 registers. These are input only devices.
1230 menu "SPI or I2C GPIO expanders"
1231 depends on (SPI_MASTER && !I2C) || I2C
1233 config GPIO_MCP23S08
1234 tristate "Microchip MCP23xxx I/O expander"
1236 select GPIOLIB_IRQCHIP
1237 select REGMAP_I2C if I2C
1238 select REGMAP if SPI_MASTER
1240 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
1242 This provides a GPIO interface supporting inputs and outputs.
1243 The I2C versions of the chips can be used as interrupt-controller.
1247 menu "USB GPIO expanders"
1250 config GPIO_VIPERBOARD
1251 tristate "Viperboard GPIO a & b support"
1252 depends on MFD_VIPERBOARD
1254 Say yes here to access the GPIO signals of Nano River
1255 Technologies Viperboard. There are two GPIO chips on the
1256 board: gpioa and gpiob.
1257 See viperboard API specification and Nano
1258 River Tech's viperboard.h for detailed meaning
1259 of the module parameters.