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.
125 config GPIO_RASPBERRYPI_EXP
126 tristate "Raspberry Pi 3 GPIO Expander"
127 default RASPBERRYPI_FIRMWARE
129 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
130 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
131 depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
133 Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
134 the firmware mailbox to communicate with VideoCore on BCM283x chips.
137 bool "Broadcom Kona GPIO"
138 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
140 Turn on GPIO support for Broadcom "Kona" chips.
143 tristate "BRCMSTB GPIO support"
144 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
145 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
149 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
152 tristate "CLPS711X GPIO support"
153 depends on ARCH_CLPS711X || COMPILE_TEST
156 Say yes here to support GPIO on CLPS711X SoCs.
159 bool "TI Davinci/Keystone GPIO support"
160 default y if ARCH_DAVINCI
161 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
163 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
166 tristate "Synopsys DesignWare APB GPIO driver"
168 select GENERIC_IRQ_CHIP
170 Say Y or M here to build support for the Synopsys DesignWare APB
174 tristate "Spreadtrum EIC support"
175 depends on ARCH_SPRD || COMPILE_TEST
177 select GPIOLIB_IRQCHIP
179 Say yes here to support Spreadtrum EIC device.
182 tristate "Emma Mobile GPIO"
183 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
185 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
189 depends on ARCH_EP93XX
193 tristate "Support for GPIO pins on XR17V352/354/358"
194 depends on SERIAL_8250_EXAR
196 Selecting this option will enable handling of GPIO pins present
197 on Exar XR17V352/354/358 chips.
200 bool "GE FPGA based GPIO"
204 Support for common GPIO functionality provided on some GE Single Board
207 This driver provides basic support (configure as input or output, read
208 and write pin state) for GPIO implemented in a number of GE single
211 config GPIO_FTGPIO010
212 bool "Faraday FTGPIO010 GPIO"
215 select GPIOLIB_IRQCHIP
216 default (ARCH_GEMINI || ARCH_MOXART)
218 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
219 Cortina systems Gemini platforms, Moxa ART and others.
221 config GPIO_GENERIC_PLATFORM
222 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
225 Say yes here to support basic platform_device memory-mapped GPIO controllers.
228 tristate "Aeroflex Gaisler GRGPIO support"
233 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
234 VHDL IP core library.
237 tristate "Nintendo Wii (Hollywood) GPIO"
241 Select this to support the GPIO controller of the Nintendo Wii.
246 tristate "Intel ICH GPIO"
247 depends on PCI && X86
251 Say yes here to support the GPIO functionality of a number of Intel
252 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
253 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
254 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
259 tristate "Ingenic JZ47xx SoCs GPIO support"
261 depends on MACH_INGENIC || COMPILE_TEST
262 select GPIOLIB_IRQCHIP
264 Say yes here to support the GPIO functionality present on the
265 JZ4740 and JZ4780 SoCs from Ingenic.
270 tristate "Intel IOP GPIO"
271 depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST
274 Say yes here to support the GPIO functionality of a number of Intel
280 bool "Loongson-2/3 GPIO support"
281 depends on CPU_LOONGSON2 || CPU_LOONGSON3
283 driver for GPIO functionality on Loongson-2F/3A/3B processors.
286 tristate "NXP LPC18XX/43XX GPIO support"
287 default y if ARCH_LPC18XX
288 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
290 Select this option to enable GPIO driver for
291 NXP LPC18XX/43XX devices.
293 config GPIO_LYNXPOINT
294 tristate "Intel Lynxpoint GPIO support"
295 depends on ACPI && X86
296 select GPIOLIB_IRQCHIP
298 driver for GPIO functionality on Intel Lynxpoint PCH chipset
299 Requires ACPI device enumeration code to set up a platform device.
302 tristate "GPIO support for Fujitsu MB86S7x Platforms"
304 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
307 tristate "MEN 16Z127 GPIO support"
311 Say yes here to support the MEN 16Z127 GPIO Controller
313 config GPIO_MM_LANTIQ
314 bool "Lantiq Memory mapped GPIOs"
315 depends on LANTIQ && SOC_XWAY
317 This enables support for memory mapped GPIOs on the External Bus Unit
318 (EBU) found on Lantiq SoCs. The gpios are output only as they are
319 created by attaching a 16bit latch to the bus.
322 tristate "GPIO Testing Driver"
323 depends on GPIOLIB && SYSFS
325 select GPIOLIB_IRQCHIP
328 This enables GPIO Testing driver, which provides a way to test GPIO
329 subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
330 must be selected for this test.
331 User could use it through the script in
332 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
337 depends on PPC_MPC52xx
340 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
341 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
342 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
347 Say Y here if you're going to use hardware that connects to the
348 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
352 depends on PLAT_ORION || ARCH_MVEBU
354 select GENERIC_IRQ_CHIP
361 select GENERIC_IRQ_CHIP
367 select GENERIC_IRQ_CHIP
370 tristate "Cavium OCTEON GPIO"
371 depends on GPIOLIB && CAVIUM_OCTEON_SOC
374 Say yes here to support the on-chip GPIO lines on the OCTEON
378 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
379 default y if ARCH_OMAP
381 select GENERIC_IRQ_CHIP
382 select GPIOLIB_IRQCHIP
384 Say yes here to enable GPIO support for TI OMAP SoCs.
387 bool "PrimeCell PL061 GPIO support"
390 select GPIOLIB_IRQCHIP
392 Say yes here to support the PrimeCell PL061 GPIO device
394 config GPIO_PMIC_EIC_SPRD
395 tristate "Spreadtrum PMIC EIC support"
396 depends on MFD_SC27XX_PMIC || COMPILE_TEST
398 select GPIOLIB_IRQCHIP
400 Say yes here to support Spreadtrum PMIC EIC device.
403 bool "PXA GPIO support"
404 depends on ARCH_PXA || ARCH_MMP
406 Say yes here to support the PXA GPIO device
409 tristate "Renesas R-Car GPIO"
410 depends on ARCH_RENESAS || COMPILE_TEST
411 select GPIOLIB_IRQCHIP
413 Say yes here to support GPIO on Renesas R-Car SoCs.
418 A 32-bit single register GPIO fixed in/out implementation. This
419 can be used to represent any register as a set of GPIO signals.
421 config GPIO_SPEAR_SPICS
422 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
423 depends on PLAT_SPEAR
424 select GENERIC_IRQ_CHIP
426 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
429 tristate "Spreadtrum GPIO support"
430 depends on ARCH_SPRD || COMPILE_TEST
432 select GPIOLIB_IRQCHIP
434 Say yes here to support Spreadtrum GPIO device.
437 bool "STA2x11/ConneXt GPIO support"
438 depends on MFD_STA2X11
439 select GENERIC_IRQ_CHIP
441 Say yes here to support the STA2x11/ConneXt GPIO device.
442 The GPIO module has 128 GPIO pins with alternate functions.
445 bool "XWAY STP GPIOs"
448 This enables support for the Serial To Parallel (STP) unit found on
449 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
450 that can be up to 24 bit. This peripheral is aimed at driving leds.
451 Some of the gpios/leds can be auto updated by the soc with dsl and
455 tristate "GPIO based on SYSCON"
456 depends on MFD_SYSCON && OF
458 Say yes here to support GPIO functionality though SYSCON driver.
462 select GENERIC_IRQ_CHIP
466 bool "NVIDIA Tegra GPIO support"
468 depends on ARCH_TEGRA || COMPILE_TEST
471 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
474 tristate "NVIDIA Tegra186 GPIO support"
475 default ARCH_TEGRA_186_SOC
476 depends on ARCH_TEGRA_186_SOC || COMPILE_TEST
478 select GPIOLIB_IRQCHIP
480 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
483 tristate "TS-4800 DIO blocks and compatibles"
485 depends on SOC_IMX51 || COMPILE_TEST
488 This driver support TS-4800 FPGA GPIO controllers.
491 tristate "Cavium ThunderX/OCTEON-TX GPIO"
492 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
494 select IRQ_DOMAIN_HIERARCHY
495 select IRQ_FASTEOI_HIERARCHY_HANDLERS
497 Say yes here to support the on-chip GPIO lines on the ThunderX
498 and OCTEON-TX families of SoCs.
501 tristate "UniPhier GPIO support"
502 depends on ARCH_UNIPHIER || COMPILE_TEST
504 select IRQ_DOMAIN_HIERARCHY
506 Say yes here to support UniPhier GPIOs.
510 depends on ARCH_MXC && SOC_VF610
511 select GPIOLIB_IRQCHIP
513 Say yes here to support Vybrid vf610 GPIOs.
516 tristate "NEC VR4100 series General-purpose I/O Uint support"
517 depends on CPU_VR41XX
519 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
522 tristate "VIA VX855/VX875 GPIO"
523 depends on (X86 || COMPILE_TEST) && PCI
527 Support access to the VX855/VX875 GPIO lines through the gpio library.
529 This driver provides common support for accessing the device,
530 additional drivers must be enabled in order to use the
531 functionality of the device.
534 bool "APM X-Gene GPIO controller support"
535 depends on ARM64 && OF_GPIO
537 This driver is to support the GPIO block within the APM X-Gene SoC
538 platform's generic flash controller. The GPIO pins are muxed with
539 the generic flash controller's address and data pins. Say yes
540 here to enable the GFC GPIO functionality.
543 tristate "APM X-Gene GPIO standby controller support"
544 depends on ARCH_XGENE && OF_GPIO
546 select GPIOLIB_IRQCHIP
547 select IRQ_DOMAIN_HIERARCHY
549 This driver supports the GPIO block within the APM X-Gene
550 Standby Domain. Say yes here to enable the GPIO functionality.
553 tristate "Xilinx GPIO support"
556 Say yes here to support the Xilinx FPGA GPIO device
559 tristate "Netlogic XLP GPIO support"
560 depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
561 select GPIOLIB_IRQCHIP
563 This driver provides support for GPIO interface on Netlogic XLP MIPS64
564 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
565 XLP9XX and XLP5XX. The same GPIO controller block is also present in
566 Cavium's ThunderX2 CN99XX SoCs.
571 bool "Xtensa GPIO32 support"
573 depends on HAVE_XTENSA_GPIO32
576 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
577 and EXPSTATE (output) ports
580 bool "LSI ZEVIO SoC memory mapped GPIOs"
581 depends on ARM && OF_GPIO
583 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
586 tristate "Xilinx Zynq GPIO support"
587 depends on ARCH_ZYNQ || ARCH_ZYNQMP
588 select GPIOLIB_IRQCHIP
590 Say yes here to support Xilinx Zynq GPIO controller.
593 bool "ZTE ZX GPIO support"
594 depends on ARCH_ZX || COMPILE_TEST
595 select GPIOLIB_IRQCHIP
597 Say yes here to support the GPIO device on ZTE ZX SoCs.
599 config GPIO_LOONGSON1
600 tristate "Loongson1 GPIO support"
601 depends on MACH_LOONGSON32
604 Say Y or M here to support GPIO on Loongson1 SoCs.
608 menu "Port-mapped I/O GPIO drivers"
609 depends on X86 # Unconditional I/O space access
611 config GPIO_104_DIO_48E
612 tristate "ACCES 104-DIO-48E GPIO support"
615 select GPIOLIB_IRQCHIP
617 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
618 104-DIO-24E). The base port addresses for the devices may be
619 configured via the base module parameter. The interrupt line numbers
620 for the devices may be configured via the irq module parameter.
622 config GPIO_104_IDIO_16
623 tristate "ACCES 104-IDIO-16 GPIO support"
626 select GPIOLIB_IRQCHIP
628 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
629 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
630 base port addresses for the devices may be configured via the base
631 module parameter. The interrupt line numbers for the devices may be
632 configured via the irq module parameter.
634 config GPIO_104_IDI_48
635 tristate "ACCES 104-IDI-48 GPIO support"
638 select GPIOLIB_IRQCHIP
640 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
641 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
642 the devices may be configured via the base module parameter. The
643 interrupt line numbers for the devices may be configured via the irq
647 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
649 This option enables support for GPIOs found on Fintek Super-I/O
650 chips F71869, F71869A, F71882FG, F71889F and F81866.
652 To compile this driver as a module, choose M here: the module will
653 be called f7188x-gpio.
656 tristate "Diamond Systems GPIO-MM GPIO support"
660 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
662 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
663 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
664 support for these 48 channels of digital I/O.
666 The base port addresses for the devices may be configured via the base
667 array module parameter.
670 tristate "IT87xx GPIO support"
672 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
674 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
675 supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
677 To compile this driver as a module, choose M here: the module will
681 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
682 depends on (X86 || COMPILE_TEST) && PCI
686 Say yes here to support GPIO interface on Intel Poulsbo SCH,
687 Intel Tunnel Creek processor, Intel Centerton processor or
688 Intel Quark X1000 SoC.
690 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
691 powered by the core power rail and are turned off during sleep
692 modes (S3 and higher). The remaining four GPIOs are powered by
693 the Intel SCH suspend power supply. These GPIOs remain
694 active during S3. The suspend powered GPIOs can be used to wake the
695 system from the Suspend-to-RAM state.
697 The Intel Tunnel Creek processor has 5 GPIOs powered by the
698 core power rail and 9 from suspend power supply.
700 The Intel Centerton processor has a total of 30 GPIO pins.
701 Twenty-one are powered by the core power rail and 9 from the
702 suspend power supply.
704 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
705 power well and 6 from the suspend power well.
708 tristate "SMSC SCH311x SuperI/O GPIO"
710 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
711 SCH3116 "Super I/O" chipsets.
713 To compile this driver as a module, choose M here: the module will
714 be called gpio-sch311x.
717 tristate "TS-5500 DIO blocks and compatibles"
718 depends on TS5500 || COMPILE_TEST
720 This driver supports Digital I/O exposed by pin blocks found on some
721 Technologic Systems platforms. It includes, but is not limited to, 3
722 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
726 tristate "Winbond Super I/O GPIO support"
729 This option enables support for GPIOs found on Winbond Super I/O
731 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
734 You will need to provide a module parameter "gpios", or a
735 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
736 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
738 To compile this driver as a module, choose M here: the module will
739 be called gpio-winbond.
742 tristate "WinSystems WS16C48 GPIO support"
744 select GPIOLIB_IRQCHIP
746 Enables GPIO support for the WinSystems WS16C48. The base port
747 addresses for the devices may be configured via the base module
748 parameter. The interrupt line numbers for the devices may be
749 configured via the irq module parameter.
753 menu "I2C GPIO expanders"
757 tristate "ADP5588 I2C GPIO expander"
759 This option enables support for 18 GPIOs found
760 on Analog Devices ADP5588 GPIO Expanders.
762 config GPIO_ADP5588_IRQ
763 bool "Interrupt controller support for ADP5588"
764 depends on GPIO_ADP5588=y
766 Say yes here to enable the adp5588 to be used as an interrupt
767 controller. It requires the driver to be built in the kernel.
770 tristate "Avionic Design N-bit GPIO expander"
772 select GPIOLIB_IRQCHIP
774 This option enables support for N GPIOs found on Avionic Design
775 I2C GPIO expanders. The register space will be extended by powers
776 of two, so the controller will need to accommodate for that. For
777 example: if a controller provides 48 pins, 6 registers will be
778 enough to represent all pins, but the driver will assume a
779 register layout for 64 pins (8 registers).
782 tristate "Maxim MAX7300 GPIO expander"
785 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
788 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
790 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
791 Port Expanders. Each IO port on these chips has a fixed role of
792 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
793 Input and Output (designed by 'P'). The combinations are listed
796 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
797 max7322 (4I4O), max7323 (4P4O)
799 16 bits: max7324 (8I8O), max7325 (8P8O),
800 max7326 (4I12O), max7327 (4P12O)
802 Board setup code must specify the model to use, and the start
803 number for these GPIOs.
805 config GPIO_MAX732X_IRQ
806 bool "Interrupt controller support for MAX732x"
807 depends on GPIO_MAX732X=y
808 select GPIOLIB_IRQCHIP
810 Say yes here to enable the max732x to be used as an interrupt
811 controller. It requires the driver to be built in the kernel.
813 config GPIO_MC9S08DZ60
814 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
815 depends on I2C=y && MACH_MX35_3DS
817 Select this to enable the MC9S08DZ60 GPIO driver
820 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
822 Say yes here to provide access to several register-oriented
823 SMBus I/O expanders, made mostly by NXP or TI. Compatible
826 4 bits: pca9536, pca9537
828 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
829 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
831 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
836 40 bits: pca9505, pca9698
838 config GPIO_PCA953X_IRQ
839 bool "Interrupt controller support for PCA953x"
840 depends on GPIO_PCA953X=y
841 select GPIOLIB_IRQCHIP
843 Say yes here to enable the pca953x to be used as an interrupt
844 controller. It requires the driver to be built in the kernel.
847 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
848 select GPIOLIB_IRQCHIP
851 Say yes here to provide access to most "quasi-bidirectional" I2C
852 GPIO expanders used for additional digital outputs or inputs.
853 Most of these parts are from NXP, though TI is a second source for
854 some of them. Compatible models include:
856 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
857 pca9670, pca9672, pca9674, pca9674a,
860 16 bits: pcf8575, pcf8575c, pca8575,
861 pca9671, pca9673, pca9675
863 Your board setup code will need to declare the expanders in
864 use, and assign numbers to the GPIOs they expose. Those GPIOs
865 can then be used from drivers and other kernel code, just like
866 other GPIOs, but only accessible from task contexts.
868 This driver provides an in-kernel interface to those GPIOs using
869 platform-neutral GPIO calls.
872 tristate "TPIC2810 8-Bit I2C GPO expander"
874 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
876 To compile this driver as a module, choose M here: the module will
877 be called gpio-tpic2810.
880 tristate "Technologic Systems FPGA I2C GPIO"
881 depends on SOC_IMX6 || COMPILE_TEST
884 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
885 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
889 menu "MFD GPIO expanders"
892 tristate "GPIO Support for ADP5520 PMIC"
893 depends on PMIC_ADP5520
895 This option enables support for on-chip GPIO found
896 on Analog Devices ADP5520 PMICs.
898 config GPIO_ALTERA_A10SR
899 tristate "Altera Arria10 System Resource GPIO"
900 depends on MFD_ALTERA_A10SR
902 Driver for Arria10 Development Kit GPIO expansion which
903 includes reads of pushbuttons and DIP switches as well
907 tristate "Wolfson Microelectronics Arizona class devices"
908 depends on MFD_ARIZONA
910 Support for GPIOs on Wolfson Arizona class devices.
912 config GPIO_BD9571MWV
913 tristate "ROHM BD9571 GPIO support"
914 depends on MFD_BD9571MWV
916 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
917 available on the ROHM PMIC in total, both of which can also
920 This driver can also be built as a module. If so, the module
921 will be called gpio-bd9571mwv.
923 config GPIO_CRYSTAL_COVE
924 tristate "GPIO support for Crystal Cove PMIC"
925 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
926 select GPIOLIB_IRQCHIP
928 Support for GPIO pins on Crystal Cove PMIC.
930 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
933 This driver can also be built as a module. If so, the module will be
934 called gpio-crystalcove.
937 tristate "AMD CS5535/CS5536 GPIO support"
938 depends on X86 || MIPS || COMPILE_TEST
939 depends on MFD_CS5535
941 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
942 can be used for quite a number of things. The CS5535/6 is found on
943 AMD Geode and Lemote Yeeloong devices.
948 tristate "Dialog DA9052 GPIO"
949 depends on PMIC_DA9052
951 Say yes here to enable the GPIO driver for the DA9052 chip.
954 tristate "Dialog Semiconductor DA9055 GPIO"
955 depends on MFD_DA9055
957 Say yes here to enable the GPIO driver for the DA9055 chip.
959 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
960 be controller by this driver.
962 If driver is built as a module it will be called gpio-da9055.
965 tristate "Diolan DLN2 GPIO support"
967 select GPIOLIB_IRQCHIP
970 Select this option to enable GPIO driver for the Diolan DLN2
973 This driver can also be built as a module. If so, the module
974 will be called gpio-dln2.
977 bool "HTC EGPIO support"
978 depends on GPIOLIB && ARM
980 This driver supports the CPLD egpio chip present on
981 several HTC phones. It provides basic support for input
982 pins, output pins, and irqs.
985 tristate "Janz VMOD-TTL Digital IO Module"
986 depends on MFD_JANZ_CMODIO
988 This enables support for the Janz VMOD-TTL Digital IO module.
989 This driver provides support for driving the pins in output
990 mode only. Input mode is not supported.
993 tristate "Kontron ETX / COMexpress GPIO"
994 depends on MFD_KEMPLD
996 This enables support for the PLD GPIO interface on some Kontron ETX
997 and COMexpress (ETXexpress) modules.
999 This driver can also be built as a module. If so, the module will be
1003 tristate "TI/National Semiconductor LP3943 GPIO expander"
1004 depends on MFD_LP3943
1006 GPIO driver for LP3943 MFD.
1007 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1008 Open drain outputs are required for this usage.
1011 tristate "TI LP873X GPO"
1012 depends on MFD_TI_LP873X
1014 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1017 This driver can also be built as a module. If so, the module will be
1021 tristate "TI LP87565 GPIO"
1022 depends on MFD_TI_LP87565
1024 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1027 This driver can also be built as a module. If so, the module will be
1028 called gpio-lp87565.
1030 config GPIO_MAX77620
1031 tristate "GPIO support for PMIC MAX77620 and MAX20024"
1032 depends on MFD_MAX77620
1034 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1035 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1036 driver also provides interrupt support for each of the gpios.
1037 Say yes here to enable the max77620 to be used as gpio controller.
1040 bool "Intel MSIC mixed signal gpio support"
1041 depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
1043 Enable support for GPIO on intel MSIC controllers found in
1047 bool "TI PALMAS series PMICs GPIO"
1048 depends on MFD_PALMAS
1050 Select this option to enable GPIO driver for the TI PALMAS
1054 bool "RICOH RC5T583 GPIO"
1055 depends on MFD_RC5T583
1057 Select this option to enable GPIO driver for the Ricoh RC5T583
1059 This driver provides the support for driving/reading the gpio pins
1060 of RC5T583 device through standard gpio library.
1064 depends on MFD_STMPE
1066 select GPIOLIB_IRQCHIP
1068 This enables support for the GPIOs found on the STMPE I/O
1072 bool "TC3589X GPIOs"
1073 depends on MFD_TC3589X
1075 select GPIOLIB_IRQCHIP
1077 This enables support for the GPIOs found on the TC3589X
1080 config GPIO_TIMBERDALE
1081 bool "Support for timberdale GPIO IP"
1082 depends on MFD_TIMBERDALE
1084 Add support for the GPIO IP in the timberdale FPGA.
1086 config GPIO_TPS65086
1087 tristate "TI TPS65086 GPO"
1088 depends on MFD_TPS65086
1090 This driver supports the GPO on TI TPS65086x PMICs.
1092 config GPIO_TPS65218
1093 tristate "TPS65218 GPIO"
1094 depends on MFD_TPS65218
1096 Select this option to enable GPIO driver for the TPS65218
1099 config GPIO_TPS6586X
1100 bool "TPS6586X GPIO"
1101 depends on MFD_TPS6586X
1103 Select this option to enable GPIO driver for the TPS6586X
1106 config GPIO_TPS65910
1107 bool "TPS65910 GPIO"
1108 depends on MFD_TPS65910
1110 Select this option to enable GPIO driver for the TPS65910
1113 config GPIO_TPS65912
1114 tristate "TI TPS65912 GPIO"
1115 depends on MFD_TPS65912
1117 This driver supports TPS65912 gpio chip
1119 config GPIO_TPS68470
1120 bool "TPS68470 GPIO"
1121 depends on MFD_TPS68470
1123 Select this option to enable GPIO driver for the TPS68470
1125 There are 7 GPIOs and few sensor related GPIOs supported
1126 by the TPS68470. While the 7 GPIOs can be configured as
1127 input or output as appropriate, the sensor related GPIOs
1128 are "output only" GPIOs.
1130 This driver config is bool, as the GPIO functionality
1131 of the TPS68470 must be available before dependent
1135 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1136 depends on TWL4030_CORE
1138 Say yes here to access the GPIO signals of various multi-function
1139 power management chips from Texas Instruments.
1142 tristate "TWL6040 GPO"
1143 depends on TWL6040_CORE
1145 Say yes here to access the GPO signals of twl6040
1146 audio chip from Texas Instruments.
1149 tristate "Philips UCB1400 GPIO"
1150 depends on UCB1400_CORE
1152 This enables support for the Philips UCB1400 GPIO pins.
1153 The UCB1400 is an AC97 audio codec.
1155 config GPIO_WHISKEY_COVE
1156 tristate "GPIO support for Whiskey Cove PMIC"
1157 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1158 select GPIOLIB_IRQCHIP
1160 Support for GPIO pins on Whiskey Cove PMIC.
1162 Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1165 This driver can also be built as a module. If so, the module will be
1169 tristate "WM831x GPIOs"
1170 depends on MFD_WM831X
1172 Say yes here to access the GPIO signals of WM831x power management
1173 chips from Wolfson Microelectronics.
1176 tristate "WM8350 GPIOs"
1177 depends on MFD_WM8350
1179 Say yes here to access the GPIO signals of WM8350 power management
1180 chips from Wolfson Microelectronics.
1183 tristate "WM8994 GPIOs"
1184 depends on MFD_WM8994
1186 Say yes here to access the GPIO signals of WM8994 audio hub
1187 CODECs from Wolfson Microelectronics.
1191 menu "PCI GPIO expanders"
1195 tristate "AMD 8111 GPIO driver"
1196 depends on X86 || COMPILE_TEST
1198 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1200 Note, that usually system firmware/ACPI handles GPIO pins on their
1201 own and users might easily break their systems with uncarefull usage
1207 tristate "BT8XX GPIO abuser"
1208 depends on VIDEO_BT848=n
1210 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1211 as a cheap PCI GPIO card.
1213 This chip can be found on Miro, Hauppauge and STB TV-cards.
1215 The card needs to be physically altered for using it as a
1216 GPIO card. For more information on how to build a GPIO card
1217 from a BT8xx TV card, see the documentation file at
1218 Documentation/bt8xxgpio.txt
1222 config GPIO_INTEL_MID
1223 bool "Intel MID GPIO support"
1224 depends on X86_INTEL_MID
1225 select GPIOLIB_IRQCHIP
1227 Say Y here to support Intel MID GPIO.
1229 config GPIO_MERRIFIELD
1230 tristate "Intel Merrifield GPIO support"
1231 depends on X86_INTEL_MID
1232 select GPIOLIB_IRQCHIP
1234 Say Y here to support Intel Merrifield GPIO.
1237 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1238 depends on X86 || COMPILE_TEST
1239 select GENERIC_IRQ_CHIP
1241 ML7213 is companion chip for Intel Atom E6xx series.
1242 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1243 Hub) which is for IVI(In-Vehicle Infotainment) use.
1244 This driver can access the IOH's GPIO device.
1247 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1248 depends on X86_32 || MIPS || COMPILE_TEST
1249 select GENERIC_IRQ_CHIP
1251 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1252 which is an IOH(Input/Output Hub) for x86 embedded processor.
1253 This driver can access PCH GPIO device.
1255 This driver also can be used for LAPIS Semiconductor IOH(Input/
1256 Output Hub), ML7223 and ML7831.
1257 ML7223 IOH is for MP(Media Phone) use.
1258 ML7831 IOH is for general purpose use.
1259 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1260 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1262 config GPIO_PCI_IDIO_16
1263 tristate "ACCES PCI-IDIO-16 GPIO support"
1264 select GPIOLIB_IRQCHIP
1266 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1267 generated when any of the inputs change state (low to high or high to
1268 low). Input filter control is not supported by this driver, and the
1269 input filters are deactivated by this driver.
1271 config GPIO_PCIE_IDIO_24
1272 tristate "ACCES PCIe-IDIO-24 GPIO support"
1273 select GPIOLIB_IRQCHIP
1275 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1276 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1277 when any of the inputs change state (low to high or high to low).
1278 Input filter control is not supported by this driver, and the input
1279 filters are deactivated by this driver.
1282 tristate "RDC R-321x GPIO support"
1286 Support for the RDC R321x SoC GPIOs over southbridge
1287 PCI configuration space.
1289 config GPIO_SODAVILLE
1290 bool "Intel Sodaville GPIO support"
1291 depends on X86 && OF
1293 select GENERIC_IRQ_CHIP
1295 Say Y here to support Intel Sodaville GPIO.
1299 menu "SPI GPIO expanders"
1300 depends on SPI_MASTER
1303 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1306 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1307 shift registers. This driver can be used to provide access
1308 to more gpio outputs.
1310 config GPIO_MAX3191X
1311 tristate "Maxim MAX3191x industrial serializer"
1314 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1315 MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1316 chip to make 8 digital 24V inputs available via SPI. Supports
1317 CRC checksums to guard against electromagnetic interference,
1318 as well as undervoltage and overtemperature detection.
1321 tristate "Maxim MAX7301 GPIO expander"
1324 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1327 tristate "Freescale MC33880 high-side/low-side switch"
1329 SPI driver for Freescale MC33880 high-side/low-side switch.
1330 This provides GPIO interface supporting inputs and outputs.
1333 tristate "Generic parallel-in/serial-out shift register"
1335 GPIO driver for SPI compatible parallel-in/serial-out shift
1336 registers. These are input only devices.
1339 tristate "EXAR XRA1403 16-bit GPIO expander"
1342 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1346 menu "USB GPIO expanders"
1349 config GPIO_VIPERBOARD
1350 tristate "Viperboard GPIO a & b support"
1351 depends on MFD_VIPERBOARD
1353 Say yes here to access the GPIO signals of Nano River
1354 Technologies Viperboard. There are two GPIO chips on the
1355 board: gpioa and gpiob.
1356 See viperboard API specification and Nano
1357 River Tech's viperboard.h for detailed meaning
1358 of the module parameters.