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 "Ingenic JZ47xx SoCs GPIO support"
248 depends on MACH_INGENIC || COMPILE_TEST
249 select GPIOLIB_IRQCHIP
251 Say yes here to support the GPIO functionality present on the
252 JZ4740 and JZ4780 SoCs from Ingenic.
257 tristate "Intel IOP GPIO"
258 depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST
261 Say yes here to support the GPIO functionality of a number of Intel
267 bool "Loongson-2/3 GPIO support"
268 depends on CPU_LOONGSON2 || CPU_LOONGSON3
270 driver for GPIO functionality on Loongson-2F/3A/3B processors.
273 tristate "NXP LPC18XX/43XX GPIO support"
274 default y if ARCH_LPC18XX
275 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
277 Select this option to enable GPIO driver for
278 NXP LPC18XX/43XX devices.
280 config GPIO_LYNXPOINT
281 tristate "Intel Lynxpoint GPIO support"
282 depends on ACPI && X86
283 select GPIOLIB_IRQCHIP
285 driver for GPIO functionality on Intel Lynxpoint PCH chipset
286 Requires ACPI device enumeration code to set up a platform device.
289 bool "GPIO support for Fujitsu MB86S7x Platforms"
290 depends on ARCH_MB86S7X || COMPILE_TEST
292 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
295 tristate "MEN 16Z127 GPIO support"
299 Say yes here to support the MEN 16Z127 GPIO Controller
301 config GPIO_MM_LANTIQ
302 bool "Lantiq Memory mapped GPIOs"
303 depends on LANTIQ && SOC_XWAY
305 This enables support for memory mapped GPIOs on the External Bus Unit
306 (EBU) found on Lantiq SoCs. The gpios are output only as they are
307 created by attaching a 16bit latch to the bus.
310 tristate "GPIO Testing Driver"
311 depends on GPIOLIB && SYSFS
313 select GPIOLIB_IRQCHIP
316 This enables GPIO Testing driver, which provides a way to test GPIO
317 subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
318 must be selected for this test.
319 User could use it through the script in
320 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
325 depends on PPC_MPC52xx
328 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
329 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
330 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
335 Say Y here if you're going to use hardware that connects to the
336 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
340 depends on PLAT_ORION
342 select GENERIC_IRQ_CHIP
348 select GENERIC_IRQ_CHIP
354 select GENERIC_IRQ_CHIP
357 tristate "Cavium OCTEON GPIO"
358 depends on GPIOLIB && CAVIUM_OCTEON_SOC
361 Say yes here to support the on-chip GPIO lines on the OCTEON
365 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
366 default y if ARCH_OMAP
368 select GENERIC_IRQ_CHIP
369 select GPIOLIB_IRQCHIP
371 Say yes here to enable GPIO support for TI OMAP SoCs.
374 bool "PrimeCell PL061 GPIO support"
377 select GPIOLIB_IRQCHIP
379 Say yes here to support the PrimeCell PL061 GPIO device
382 bool "PXA GPIO support"
383 depends on ARCH_PXA || ARCH_MMP
385 Say yes here to support the PXA GPIO device
388 tristate "Renesas R-Car GPIO"
389 depends on ARCH_RENESAS || COMPILE_TEST
390 select GPIOLIB_IRQCHIP
392 Say yes here to support GPIO on Renesas R-Car SoCs.
397 A 32-bit single register GPIO fixed in/out implementation. This
398 can be used to represent any register as a set of GPIO signals.
400 config GPIO_SPEAR_SPICS
401 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
402 depends on PLAT_SPEAR
403 select GENERIC_IRQ_CHIP
405 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
408 bool "STA2x11/ConneXt GPIO support"
409 depends on MFD_STA2X11
410 select GENERIC_IRQ_CHIP
412 Say yes here to support the STA2x11/ConneXt GPIO device.
413 The GPIO module has 128 GPIO pins with alternate functions.
416 bool "XWAY STP GPIOs"
419 This enables support for the Serial To Parallel (STP) unit found on
420 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
421 that can be up to 24 bit. This peripheral is aimed at driving leds.
422 Some of the gpios/leds can be auto updated by the soc with dsl and
426 tristate "GPIO based on SYSCON"
427 depends on MFD_SYSCON && OF
429 Say yes here to support GPIO functionality though SYSCON driver.
433 select GENERIC_IRQ_CHIP
437 bool "NVIDIA Tegra GPIO support"
439 depends on ARCH_TEGRA || COMPILE_TEST
442 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
445 tristate "TS-4800 DIO blocks and compatibles"
447 depends on SOC_IMX51 || COMPILE_TEST
450 This driver support TS-4800 FPGA GPIO controllers.
453 bool "Toumaz Xenif TZ1090 GPIO support"
454 depends on SOC_TZ1090
455 select GENERIC_IRQ_CHIP
458 Say yes here to support Toumaz Xenif TZ1090 GPIOs.
460 config GPIO_TZ1090_PDC
461 bool "Toumaz Xenif TZ1090 PDC GPIO support"
462 depends on SOC_TZ1090
465 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
469 depends on ARCH_MXC && SOC_VF610
470 select GPIOLIB_IRQCHIP
472 Say yes here to support Vybrid vf610 GPIOs.
475 tristate "NEC VR4100 series General-purpose I/O Uint support"
476 depends on CPU_VR41XX
478 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
481 tristate "VIA VX855/VX875 GPIO"
482 depends on (X86 || COMPILE_TEST) && PCI
486 Support access to the VX855/VX875 GPIO lines through the gpio library.
488 This driver provides common support for accessing the device,
489 additional drivers must be enabled in order to use the
490 functionality of the device.
493 bool "APM X-Gene GPIO controller support"
494 depends on ARM64 && OF_GPIO
496 This driver is to support the GPIO block within the APM X-Gene SoC
497 platform's generic flash controller. The GPIO pins are muxed with
498 the generic flash controller's address and data pins. Say yes
499 here to enable the GFC GPIO functionality.
502 tristate "APM X-Gene GPIO standby controller support"
503 depends on ARCH_XGENE && OF_GPIO
505 select GPIOLIB_IRQCHIP
507 This driver supports the GPIO block within the APM X-Gene
508 Standby Domain. Say yes here to enable the GPIO functionality.
511 tristate "Xilinx GPIO support"
514 Say yes here to support the Xilinx FPGA GPIO device
517 tristate "Netlogic XLP GPIO support"
518 depends on OF_GPIO && (CPU_XLP || ARCH_VULCAN || ARCH_THUNDER2 || COMPILE_TEST)
519 select GPIOLIB_IRQCHIP
521 This driver provides support for GPIO interface on Netlogic XLP MIPS64
522 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
528 bool "Xtensa GPIO32 support"
530 depends on HAVE_XTENSA_GPIO32
533 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
534 and EXPSTATE (output) ports
537 bool "LSI ZEVIO SoC memory mapped GPIOs"
538 depends on ARM && OF_GPIO
540 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
543 tristate "Xilinx Zynq GPIO support"
544 depends on ARCH_ZYNQ || ARCH_ZYNQMP
545 select GPIOLIB_IRQCHIP
547 Say yes here to support Xilinx Zynq GPIO controller.
550 bool "ZTE ZX GPIO support"
551 depends on ARCH_ZX || COMPILE_TEST
552 select GPIOLIB_IRQCHIP
554 Say yes here to support the GPIO device on ZTE ZX SoCs.
556 config GPIO_LOONGSON1
557 tristate "Loongson1 GPIO support"
558 depends on MACH_LOONGSON32
561 Say Y or M here to support GPIO on Loongson1 SoCs.
565 menu "Port-mapped I/O GPIO drivers"
566 depends on X86 # Unconditional I/O space access
568 config GPIO_104_DIO_48E
569 tristate "ACCES 104-DIO-48E GPIO support"
570 depends on PC104 && ISA_BUS_API
571 select GPIOLIB_IRQCHIP
573 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
574 104-DIO-24E). The base port addresses for the devices may be
575 configured via the base module parameter. The interrupt line numbers
576 for the devices may be configured via the irq module parameter.
578 config GPIO_104_IDIO_16
579 tristate "ACCES 104-IDIO-16 GPIO support"
580 depends on PC104 && ISA_BUS_API
581 select GPIOLIB_IRQCHIP
583 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
584 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
585 base port addresses for the devices may be configured via the base
586 module parameter. The interrupt line numbers for the devices may be
587 configured via the irq module parameter.
589 config GPIO_104_IDI_48
590 tristate "ACCES 104-IDI-48 GPIO support"
591 depends on PC104 && ISA_BUS_API
592 select GPIOLIB_IRQCHIP
594 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
595 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
596 the devices may be configured via the base module parameter. The
597 interrupt line numbers for the devices may be configured via the irq
601 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
603 This option enables support for GPIOs found on Fintek Super-I/O
604 chips F71869, F71869A, F71882FG, F71889F and F81866.
606 To compile this driver as a module, choose M here: the module will
607 be called f7188x-gpio.
610 tristate "Diamond Systems GPIO-MM GPIO support"
611 depends on PC104 && ISA_BUS_API
613 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
615 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
616 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
617 support for these 48 channels of digital I/O.
619 The base port addresses for the devices may be configured via the base
620 array module parameter.
623 tristate "IT87xx GPIO support"
625 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
627 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
628 supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
630 To compile this driver as a module, choose M here: the module will
634 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
635 depends on (X86 || COMPILE_TEST) && PCI
639 Say yes here to support GPIO interface on Intel Poulsbo SCH,
640 Intel Tunnel Creek processor, Intel Centerton processor or
641 Intel Quark X1000 SoC.
643 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
644 powered by the core power rail and are turned off during sleep
645 modes (S3 and higher). The remaining four GPIOs are powered by
646 the Intel SCH suspend power supply. These GPIOs remain
647 active during S3. The suspend powered GPIOs can be used to wake the
648 system from the Suspend-to-RAM state.
650 The Intel Tunnel Creek processor has 5 GPIOs powered by the
651 core power rail and 9 from suspend power supply.
653 The Intel Centerton processor has a total of 30 GPIO pins.
654 Twenty-one are powered by the core power rail and 9 from the
655 suspend power supply.
657 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
658 power well and 6 from the suspend power well.
661 tristate "SMSC SCH311x SuperI/O GPIO"
663 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
664 SCH3116 "Super I/O" chipsets.
666 To compile this driver as a module, choose M here: the module will
667 be called gpio-sch311x.
670 tristate "TS-5500 DIO blocks and compatibles"
671 depends on TS5500 || COMPILE_TEST
673 This driver supports Digital I/O exposed by pin blocks found on some
674 Technologic Systems platforms. It includes, but is not limited to, 3
675 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
679 tristate "WinSystems WS16C48 GPIO support"
680 depends on ISA_BUS_API
681 select GPIOLIB_IRQCHIP
683 Enables GPIO support for the WinSystems WS16C48. The base port
684 addresses for the devices may be configured via the base module
685 parameter. The interrupt line numbers for the devices may be
686 configured via the irq module parameter.
690 menu "I2C GPIO expanders"
694 tristate "ADP5588 I2C GPIO expander"
696 This option enables support for 18 GPIOs found
697 on Analog Devices ADP5588 GPIO Expanders.
699 config GPIO_ADP5588_IRQ
700 bool "Interrupt controller support for ADP5588"
701 depends on GPIO_ADP5588=y
703 Say yes here to enable the adp5588 to be used as an interrupt
704 controller. It requires the driver to be built in the kernel.
707 tristate "Avionic Design N-bit GPIO expander"
709 select GPIOLIB_IRQCHIP
711 This option enables support for N GPIOs found on Avionic Design
712 I2C GPIO expanders. The register space will be extended by powers
713 of two, so the controller will need to accommodate for that. For
714 example: if a controller provides 48 pins, 6 registers will be
715 enough to represent all pins, but the driver will assume a
716 register layout for 64 pins (8 registers).
719 tristate "Maxim MAX7300 GPIO expander"
722 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
725 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
727 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
728 Port Expanders. Each IO port on these chips has a fixed role of
729 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
730 Input and Output (designed by 'P'). The combinations are listed
733 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
734 max7322 (4I4O), max7323 (4P4O)
736 16 bits: max7324 (8I8O), max7325 (8P8O),
737 max7326 (4I12O), max7327 (4P12O)
739 Board setup code must specify the model to use, and the start
740 number for these GPIOs.
742 config GPIO_MAX732X_IRQ
743 bool "Interrupt controller support for MAX732x"
744 depends on GPIO_MAX732X=y
745 select GPIOLIB_IRQCHIP
747 Say yes here to enable the max732x to be used as an interrupt
748 controller. It requires the driver to be built in the kernel.
750 config GPIO_MC9S08DZ60
751 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
752 depends on I2C=y && MACH_MX35_3DS
754 Select this to enable the MC9S08DZ60 GPIO driver
757 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
759 Say yes here to provide access to several register-oriented
760 SMBus I/O expanders, made mostly by NXP or TI. Compatible
763 4 bits: pca9536, pca9537
765 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
766 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
768 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
773 40 bits: pca9505, pca9698
775 config GPIO_PCA953X_IRQ
776 bool "Interrupt controller support for PCA953x"
777 depends on GPIO_PCA953X=y
778 select GPIOLIB_IRQCHIP
780 Say yes here to enable the pca953x to be used as an interrupt
781 controller. It requires the driver to be built in the kernel.
784 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
785 select GPIOLIB_IRQCHIP
788 Say yes here to provide access to most "quasi-bidirectional" I2C
789 GPIO expanders used for additional digital outputs or inputs.
790 Most of these parts are from NXP, though TI is a second source for
791 some of them. Compatible models include:
793 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
794 pca9670, pca9672, pca9674, pca9674a,
797 16 bits: pcf8575, pcf8575c, pca8575,
798 pca9671, pca9673, pca9675
800 Your board setup code will need to declare the expanders in
801 use, and assign numbers to the GPIOs they expose. Those GPIOs
802 can then be used from drivers and other kernel code, just like
803 other GPIOs, but only accessible from task contexts.
805 This driver provides an in-kernel interface to those GPIOs using
806 platform-neutral GPIO calls.
809 bool "Semtech SX150x I2C GPIO expander (deprecated)"
810 depends on PINCTRL && I2C=y
811 select PINCTRL_SX150X
814 Say yes here to provide support for Semtech SX150x-series I2C
815 GPIO expanders. The GPIO driver was replaced by a Pinctrl version.
818 tristate "TPIC2810 8-Bit I2C GPO expander"
820 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
822 To compile this driver as a module, choose M here: the module will
823 be called gpio-tpic2810.
826 tristate "Technologic Systems FPGA I2C GPIO"
827 depends on SOC_IMX6 || COMPILE_TEST
830 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
831 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
835 menu "MFD GPIO expanders"
838 tristate "GPIO Support for ADP5520 PMIC"
839 depends on PMIC_ADP5520
841 This option enables support for on-chip GPIO found
842 on Analog Devices ADP5520 PMICs.
844 config GPIO_ALTERA_A10SR
845 tristate "Altera Arria10 System Resource GPIO"
846 depends on MFD_ALTERA_A10SR
848 Driver for Arria10 Development Kit GPIO expansion which
849 includes reads of pushbuttons and DIP switches as well
853 tristate "Wolfson Microelectronics Arizona class devices"
854 depends on MFD_ARIZONA
856 Support for GPIOs on Wolfson Arizona class devices.
858 config GPIO_BD9571MWV
859 tristate "ROHM BD9571 GPIO support"
860 depends on MFD_BD9571MWV
862 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
863 available on the ROHM PMIC in total, both of which can also
866 This driver can also be built as a module. If so, the module
867 will be called gpio-bd9571mwv.
869 config GPIO_CRYSTAL_COVE
870 tristate "GPIO support for Crystal Cove PMIC"
871 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
872 select GPIOLIB_IRQCHIP
874 Support for GPIO pins on Crystal Cove PMIC.
876 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
879 This driver can also be built as a module. If so, the module will be
880 called gpio-crystalcove.
883 tristate "AMD CS5535/CS5536 GPIO support"
884 depends on X86 || MIPS || COMPILE_TEST
885 depends on MFD_CS5535
887 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
888 can be used for quite a number of things. The CS5535/6 is found on
889 AMD Geode and Lemote Yeeloong devices.
894 tristate "Dialog DA9052 GPIO"
895 depends on PMIC_DA9052
897 Say yes here to enable the GPIO driver for the DA9052 chip.
900 tristate "Dialog Semiconductor DA9055 GPIO"
901 depends on MFD_DA9055
903 Say yes here to enable the GPIO driver for the DA9055 chip.
905 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
906 be controller by this driver.
908 If driver is built as a module it will be called gpio-da9055.
911 tristate "Diolan DLN2 GPIO support"
913 select GPIOLIB_IRQCHIP
916 Select this option to enable GPIO driver for the Diolan DLN2
919 This driver can also be built as a module. If so, the module
920 will be called gpio-dln2.
923 bool "HTC EGPIO support"
924 depends on GPIOLIB && ARM
926 This driver supports the CPLD egpio chip present on
927 several HTC phones. It provides basic support for input
928 pins, output pins, and irqs.
931 tristate "Janz VMOD-TTL Digital IO Module"
932 depends on MFD_JANZ_CMODIO
934 This enables support for the Janz VMOD-TTL Digital IO module.
935 This driver provides support for driving the pins in output
936 mode only. Input mode is not supported.
939 tristate "Kontron ETX / COMexpress GPIO"
940 depends on MFD_KEMPLD
942 This enables support for the PLD GPIO interface on some Kontron ETX
943 and COMexpress (ETXexpress) modules.
945 This driver can also be built as a module. If so, the module will be
949 tristate "TI/National Semiconductor LP3943 GPIO expander"
950 depends on MFD_LP3943
952 GPIO driver for LP3943 MFD.
953 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
954 Open drain outputs are required for this usage.
957 tristate "TI LP873X GPO"
958 depends on MFD_TI_LP873X
960 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
963 This driver can also be built as a module. If so, the module will be
967 tristate "GPIO support for PMIC MAX77620 and MAX20024"
968 depends on MFD_MAX77620
970 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
971 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
972 driver also provides interrupt support for each of the gpios.
973 Say yes here to enable the max77620 to be used as gpio controller.
976 bool "Intel MSIC mixed signal gpio support"
977 depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
979 Enable support for GPIO on intel MSIC controllers found in
983 bool "TI PALMAS series PMICs GPIO"
984 depends on MFD_PALMAS
986 Select this option to enable GPIO driver for the TI PALMAS
990 bool "RICOH RC5T583 GPIO"
991 depends on MFD_RC5T583
993 Select this option to enable GPIO driver for the Ricoh RC5T583
995 This driver provides the support for driving/reading the gpio pins
996 of RC5T583 device through standard gpio library.
1000 depends on MFD_STMPE
1002 select GPIOLIB_IRQCHIP
1004 This enables support for the GPIOs found on the STMPE I/O
1008 bool "TC3589X GPIOs"
1009 depends on MFD_TC3589X
1011 select GPIOLIB_IRQCHIP
1013 This enables support for the GPIOs found on the TC3589X
1016 config GPIO_TIMBERDALE
1017 bool "Support for timberdale GPIO IP"
1018 depends on MFD_TIMBERDALE
1020 Add support for the GPIO IP in the timberdale FPGA.
1022 config GPIO_TPS65086
1023 tristate "TI TPS65086 GPO"
1024 depends on MFD_TPS65086
1026 This driver supports the GPO on TI TPS65086x PMICs.
1028 config GPIO_TPS65218
1029 tristate "TPS65218 GPIO"
1030 depends on MFD_TPS65218
1032 Select this option to enable GPIO driver for the TPS65218
1035 config GPIO_TPS6586X
1036 bool "TPS6586X GPIO"
1037 depends on MFD_TPS6586X
1039 Select this option to enable GPIO driver for the TPS6586X
1042 config GPIO_TPS65910
1043 bool "TPS65910 GPIO"
1044 depends on MFD_TPS65910
1046 Select this option to enable GPIO driver for the TPS65910
1049 config GPIO_TPS65912
1050 tristate "TI TPS65912 GPIO"
1051 depends on MFD_TPS65912
1053 This driver supports TPS65912 gpio chip
1056 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1057 depends on TWL4030_CORE
1059 Say yes here to access the GPIO signals of various multi-function
1060 power management chips from Texas Instruments.
1063 tristate "TWL6040 GPO"
1064 depends on TWL6040_CORE
1066 Say yes here to access the GPO signals of twl6040
1067 audio chip from Texas Instruments.
1070 tristate "Philips UCB1400 GPIO"
1071 depends on UCB1400_CORE
1073 This enables support for the Philips UCB1400 GPIO pins.
1074 The UCB1400 is an AC97 audio codec.
1076 config GPIO_WHISKEY_COVE
1077 tristate "GPIO support for Whiskey Cove PMIC"
1078 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1079 select GPIOLIB_IRQCHIP
1081 Support for GPIO pins on Whiskey Cove PMIC.
1083 Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1086 This driver can also be built as a module. If so, the module will be
1090 tristate "WM831x GPIOs"
1091 depends on MFD_WM831X
1093 Say yes here to access the GPIO signals of WM831x power management
1094 chips from Wolfson Microelectronics.
1097 tristate "WM8350 GPIOs"
1098 depends on MFD_WM8350
1100 Say yes here to access the GPIO signals of WM8350 power management
1101 chips from Wolfson Microelectronics.
1104 tristate "WM8994 GPIOs"
1105 depends on MFD_WM8994
1107 Say yes here to access the GPIO signals of WM8994 audio hub
1108 CODECs from Wolfson Microelectronics.
1112 menu "PCI GPIO expanders"
1116 tristate "AMD 8111 GPIO driver"
1117 depends on X86 || COMPILE_TEST
1119 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1121 Note, that usually system firmware/ACPI handles GPIO pins on their
1122 own and users might easily break their systems with uncarefull usage
1128 tristate "BT8XX GPIO abuser"
1129 depends on VIDEO_BT848=n
1131 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1132 as a cheap PCI GPIO card.
1134 This chip can be found on Miro, Hauppauge and STB TV-cards.
1136 The card needs to be physically altered for using it as a
1137 GPIO card. For more information on how to build a GPIO card
1138 from a BT8xx TV card, see the documentation file at
1139 Documentation/bt8xxgpio.txt
1143 config GPIO_INTEL_MID
1144 bool "Intel MID GPIO support"
1145 depends on X86_INTEL_MID
1146 select GPIOLIB_IRQCHIP
1148 Say Y here to support Intel MID GPIO.
1150 config GPIO_MERRIFIELD
1151 tristate "Intel Merrifield GPIO support"
1152 depends on X86_INTEL_MID
1153 select GPIOLIB_IRQCHIP
1155 Say Y here to support Intel Merrifield GPIO.
1158 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1159 depends on X86 || COMPILE_TEST
1160 select GENERIC_IRQ_CHIP
1162 ML7213 is companion chip for Intel Atom E6xx series.
1163 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1164 Hub) which is for IVI(In-Vehicle Infotainment) use.
1165 This driver can access the IOH's GPIO device.
1168 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1169 depends on X86_32 || MIPS || COMPILE_TEST
1170 select GENERIC_IRQ_CHIP
1172 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1173 which is an IOH(Input/Output Hub) for x86 embedded processor.
1174 This driver can access PCH GPIO device.
1176 This driver also can be used for LAPIS Semiconductor IOH(Input/
1177 Output Hub), ML7223 and ML7831.
1178 ML7223 IOH is for MP(Media Phone) use.
1179 ML7831 IOH is for general purpose use.
1180 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1181 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1183 config GPIO_PCI_IDIO_16
1184 tristate "ACCES PCI-IDIO-16 GPIO support"
1185 select GPIOLIB_IRQCHIP
1187 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1188 generated when any of the inputs change state (low to high or high to
1189 low). Input filter control is not supported by this driver, and the
1190 input filters are deactivated by this driver.
1193 tristate "RDC R-321x GPIO support"
1197 Support for the RDC R321x SoC GPIOs over southbridge
1198 PCI configuration space.
1200 config GPIO_SODAVILLE
1201 bool "Intel Sodaville GPIO support"
1202 depends on X86 && OF
1204 select GENERIC_IRQ_CHIP
1206 Say Y here to support Intel Sodaville GPIO.
1210 menu "SPI GPIO expanders"
1211 depends on SPI_MASTER
1214 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1217 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1218 shift registers. This driver can be used to provide access
1219 to more gpio outputs.
1222 tristate "Maxim MAX7301 GPIO expander"
1225 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1228 tristate "Freescale MC33880 high-side/low-side switch"
1230 SPI driver for Freescale MC33880 high-side/low-side switch.
1231 This provides GPIO interface supporting inputs and outputs.
1234 tristate "Generic parallel-in/serial-out shift register"
1236 GPIO driver for SPI compatible parallel-in/serial-out shift
1237 registers. These are input only devices.
1241 menu "USB GPIO expanders"
1244 config GPIO_VIPERBOARD
1245 tristate "Viperboard GPIO a & b support"
1246 depends on MFD_VIPERBOARD
1248 Say yes here to access the GPIO signals of Nano River
1249 Technologies Viperboard. There are two GPIO chips on the
1250 board: gpioa and gpiob.
1251 See viperboard API specification and Nano
1252 River Tech's viperboard.h for detailed meaning
1253 of the module parameters.