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.
25 config GPIOLIB_FASTPATH_LIMIT
26 int "Maximum number of GPIOs for fast path"
30 This adjusts the point at which certain APIs will switch from
31 using a stack allocated buffer to a dynamically allocated buffer.
33 You shouldn't need to change this unless you really need to
34 optimize either stack space or performance. Change this carefully
35 since setting an incorrect value could cause stack corruption.
46 config GPIOLIB_IRQCHIP
51 bool "Debug GPIO calls"
52 depends on DEBUG_KERNEL
54 Say Y here to add some extra checks and diagnostics to GPIO calls.
55 These checks help ensure that GPIOs have been properly initialized
56 before they are used, and that sleeping calls are not made from
57 non-sleeping contexts. They can make bitbanged serial protocols
58 slower. The diagnostics help catch the type of setup errors
59 that are most common when setting up new platforms or boards.
62 bool "/sys/class/gpio/... (sysfs interface)"
65 Say Y here to add a sysfs interface for GPIOs.
67 This is mostly useful to work around omissions in a system's
68 kernel support. Those are common in custom and semicustom
69 hardware assembled using standard kernels with a minimum of
70 custom patches. In those cases, userspace code may import
71 a given GPIO from the kernel, if no kernel driver requested it.
73 Kernel drivers may also request that a particular GPIO be
74 exported to userspace; this can be useful when debugging.
77 depends on HAS_IOMEM # Only for IOMEM drivers
80 # put drivers in the right section, in alphabetical order
82 # This symbol is selected by both I2C and SPI expanders
86 menu "Memory mapped GPIO drivers"
90 tristate "GPIO driver for 74xx-ICs with MMIO access"
94 Say yes here to support GPIO functionality for 74xx-compatible ICs
95 with MMIO access. Compatible models include:
96 1 bit: 741G125 (Input), 741G74 (Output)
97 2 bits: 742G125 (Input), 7474 (Output)
98 4 bits: 74125 (Input), 74175 (Output)
99 6 bits: 74365 (Input), 74174 (Output)
100 8 bits: 74244 (Input), 74273 (Output)
101 16 bits: 741624 (Input), 7416374 (Output)
104 tristate "Altera GPIO"
106 select GPIOLIB_IRQCHIP
108 Say Y or M here to build support for the Altera PIO device.
110 If driver is built as a module it will be called gpio-altera.
113 tristate "AMD Promontory GPIO support"
117 driver for GPIO functionality on Promontory IOHub
118 Require ACPI ASL code to enumerate as a platform device.
121 tristate "Aspeed GPIO support"
122 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
123 select GPIOLIB_IRQCHIP
125 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
128 tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
130 depends on ATH79 || COMPILE_TEST
132 select GPIOLIB_IRQCHIP
134 Select this option to enable GPIO driver for
135 Atheros AR71XX/AR724X/AR913X SoC devices.
137 config GPIO_RASPBERRYPI_EXP
138 tristate "Raspberry Pi 3 GPIO Expander"
139 default RASPBERRYPI_FIRMWARE
141 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
142 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
143 depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
145 Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
146 the firmware mailbox to communicate with VideoCore on BCM283x chips.
149 bool "Broadcom Kona GPIO"
150 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
152 Turn on GPIO support for Broadcom "Kona" chips.
155 tristate "BRCMSTB GPIO support"
156 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
157 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
161 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
164 tristate "CLPS711X GPIO support"
165 depends on ARCH_CLPS711X || COMPILE_TEST
168 Say yes here to support GPIO on CLPS711X SoCs.
171 bool "TI Davinci/Keystone GPIO support"
172 default y if ARCH_DAVINCI
173 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
175 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
178 tristate "Synopsys DesignWare APB GPIO driver"
180 select GENERIC_IRQ_CHIP
182 Say Y or M here to build support for the Synopsys DesignWare APB
186 tristate "Spreadtrum EIC support"
187 depends on ARCH_SPRD || COMPILE_TEST
189 select GPIOLIB_IRQCHIP
191 Say yes here to support Spreadtrum EIC device.
194 tristate "Emma Mobile GPIO"
195 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
197 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
201 depends on ARCH_EP93XX
205 tristate "Support for GPIO pins on XR17V352/354/358"
206 depends on SERIAL_8250_EXAR
208 Selecting this option will enable handling of GPIO pins present
209 on Exar XR17V352/354/358 chips.
212 bool "GE FPGA based GPIO"
216 Support for common GPIO functionality provided on some GE Single Board
219 This driver provides basic support (configure as input or output, read
220 and write pin state) for GPIO implemented in a number of GE single
223 config GPIO_FTGPIO010
224 bool "Faraday FTGPIO010 GPIO"
227 select GPIOLIB_IRQCHIP
228 default (ARCH_GEMINI || ARCH_MOXART)
230 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
231 Cortina systems Gemini platforms, Moxa ART and others.
233 config GPIO_GENERIC_PLATFORM
234 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
237 Say yes here to support basic platform_device memory-mapped GPIO controllers.
240 tristate "Aeroflex Gaisler GRGPIO support"
245 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
246 VHDL IP core library.
249 tristate "Nintendo Wii (Hollywood) GPIO"
253 Select this to support the GPIO controller of the Nintendo Wii.
258 tristate "Intel ICH GPIO"
259 depends on PCI && X86
263 Say yes here to support the GPIO functionality of a number of Intel
264 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
265 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
266 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
271 tristate "Ingenic JZ47xx SoCs GPIO support"
273 depends on MACH_INGENIC || COMPILE_TEST
274 select GPIOLIB_IRQCHIP
276 Say yes here to support the GPIO functionality present on the
277 JZ4740 and JZ4780 SoCs from Ingenic.
282 tristate "Intel IOP GPIO"
283 depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST
286 Say yes here to support the GPIO functionality of a number of Intel
292 bool "Loongson-2/3 GPIO support"
293 depends on CPU_LOONGSON2 || CPU_LOONGSON3
295 driver for GPIO functionality on Loongson-2F/3A/3B processors.
298 tristate "NXP LPC18XX/43XX GPIO support"
299 default y if ARCH_LPC18XX
300 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
302 Select this option to enable GPIO driver for
303 NXP LPC18XX/43XX devices.
305 config GPIO_LYNXPOINT
306 tristate "Intel Lynxpoint GPIO support"
307 depends on ACPI && X86
308 select GPIOLIB_IRQCHIP
310 driver for GPIO functionality on Intel Lynxpoint PCH chipset
311 Requires ACPI device enumeration code to set up a platform device.
314 tristate "GPIO support for Fujitsu MB86S7x Platforms"
316 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
319 tristate "MEN 16Z127 GPIO support"
323 Say yes here to support the MEN 16Z127 GPIO Controller
325 config GPIO_MM_LANTIQ
326 bool "Lantiq Memory mapped GPIOs"
327 depends on LANTIQ && SOC_XWAY
329 This enables support for memory mapped GPIOs on the External Bus Unit
330 (EBU) found on Lantiq SoCs. The gpios are output only as they are
331 created by attaching a 16bit latch to the bus.
334 tristate "GPIO Testing Driver"
335 depends on GPIOLIB && SYSFS
337 select GPIOLIB_IRQCHIP
340 This enables GPIO Testing driver, which provides a way to test GPIO
341 subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
342 must be selected for this test.
343 User could use it through the script in
344 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
349 depends on PPC_MPC52xx
352 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
353 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
354 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
359 Say Y here if you're going to use hardware that connects to the
360 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
363 bool "Mediatek MT7621 GPIO Support"
364 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
367 select GPIOLIB_IRQCHIP
369 Say yes here to support the Mediatek MT7621 SoC GPIO device
373 depends on PLAT_ORION || ARCH_MVEBU
375 select GENERIC_IRQ_CHIP
382 select GENERIC_IRQ_CHIP
388 select GENERIC_IRQ_CHIP
391 tristate "Cavium OCTEON GPIO"
392 depends on GPIOLIB && CAVIUM_OCTEON_SOC
395 Say yes here to support the on-chip GPIO lines on the OCTEON
399 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
400 default y if ARCH_OMAP
402 select GENERIC_IRQ_CHIP
403 select GPIOLIB_IRQCHIP
405 Say yes here to enable GPIO support for TI OMAP SoCs.
408 bool "PrimeCell PL061 GPIO support"
411 select GPIOLIB_IRQCHIP
413 Say yes here to support the PrimeCell PL061 GPIO device
415 config GPIO_PMIC_EIC_SPRD
416 tristate "Spreadtrum PMIC EIC support"
417 depends on MFD_SC27XX_PMIC || COMPILE_TEST
419 select GPIOLIB_IRQCHIP
421 Say yes here to support Spreadtrum PMIC EIC device.
424 bool "PXA GPIO support"
425 depends on ARCH_PXA || ARCH_MMP
427 Say yes here to support the PXA GPIO device
430 tristate "Renesas R-Car GPIO"
431 depends on ARCH_RENESAS || COMPILE_TEST
432 select GPIOLIB_IRQCHIP
434 Say yes here to support GPIO on Renesas R-Car SoCs.
439 A 32-bit single register GPIO fixed in/out implementation. This
440 can be used to represent any register as a set of GPIO signals.
442 config GPIO_SPEAR_SPICS
443 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
444 depends on PLAT_SPEAR
445 select GENERIC_IRQ_CHIP
447 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
450 tristate "Spreadtrum GPIO support"
451 depends on ARCH_SPRD || COMPILE_TEST
453 select GPIOLIB_IRQCHIP
455 Say yes here to support Spreadtrum GPIO device.
458 bool "STA2x11/ConneXt GPIO support"
459 depends on MFD_STA2X11
460 select GENERIC_IRQ_CHIP
462 Say yes here to support the STA2x11/ConneXt GPIO device.
463 The GPIO module has 128 GPIO pins with alternate functions.
466 bool "XWAY STP GPIOs"
469 This enables support for the Serial To Parallel (STP) unit found on
470 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
471 that can be up to 24 bit. This peripheral is aimed at driving leds.
472 Some of the gpios/leds can be auto updated by the soc with dsl and
476 tristate "GPIO based on SYSCON"
477 depends on MFD_SYSCON && OF
479 Say yes here to support GPIO functionality though SYSCON driver.
483 select GENERIC_IRQ_CHIP
487 bool "NVIDIA Tegra GPIO support"
489 depends on ARCH_TEGRA || COMPILE_TEST
492 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
495 tristate "NVIDIA Tegra186 GPIO support"
496 default ARCH_TEGRA_186_SOC
497 depends on ARCH_TEGRA_186_SOC || COMPILE_TEST
499 select GPIOLIB_IRQCHIP
501 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
504 tristate "TS-4800 DIO blocks and compatibles"
506 depends on SOC_IMX51 || COMPILE_TEST
509 This driver support TS-4800 FPGA GPIO controllers.
512 tristate "Cavium ThunderX/OCTEON-TX GPIO"
513 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
515 select IRQ_DOMAIN_HIERARCHY
516 select IRQ_FASTEOI_HIERARCHY_HANDLERS
518 Say yes here to support the on-chip GPIO lines on the ThunderX
519 and OCTEON-TX families of SoCs.
522 tristate "UniPhier GPIO support"
523 depends on ARCH_UNIPHIER || COMPILE_TEST
525 select IRQ_DOMAIN_HIERARCHY
527 Say yes here to support UniPhier GPIOs.
531 depends on ARCH_MXC && SOC_VF610
532 select GPIOLIB_IRQCHIP
534 Say yes here to support Vybrid vf610 GPIOs.
537 tristate "NEC VR4100 series General-purpose I/O Uint support"
538 depends on CPU_VR41XX
540 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
543 tristate "VIA VX855/VX875 GPIO"
544 depends on (X86 || COMPILE_TEST) && PCI
548 Support access to the VX855/VX875 GPIO lines through the gpio library.
550 This driver provides common support for accessing the device,
551 additional drivers must be enabled in order to use the
552 functionality of the device.
555 bool "APM X-Gene GPIO controller support"
556 depends on ARM64 && OF_GPIO
558 This driver is to support the GPIO block within the APM X-Gene SoC
559 platform's generic flash controller. The GPIO pins are muxed with
560 the generic flash controller's address and data pins. Say yes
561 here to enable the GFC GPIO functionality.
564 tristate "APM X-Gene GPIO standby controller support"
565 depends on ARCH_XGENE && OF_GPIO
567 select GPIOLIB_IRQCHIP
568 select IRQ_DOMAIN_HIERARCHY
570 This driver supports the GPIO block within the APM X-Gene
571 Standby Domain. Say yes here to enable the GPIO functionality.
574 tristate "Xilinx GPIO support"
577 Say yes here to support the Xilinx FPGA GPIO device
580 tristate "Netlogic XLP GPIO support"
581 depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
582 select GPIOLIB_IRQCHIP
584 This driver provides support for GPIO interface on Netlogic XLP MIPS64
585 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
586 XLP9XX and XLP5XX. The same GPIO controller block is also present in
587 Cavium's ThunderX2 CN99XX SoCs.
592 bool "Xtensa GPIO32 support"
594 depends on HAVE_XTENSA_GPIO32
597 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
598 and EXPSTATE (output) ports
601 bool "LSI ZEVIO SoC memory mapped GPIOs"
602 depends on ARM && OF_GPIO
604 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
607 tristate "Xilinx Zynq GPIO support"
608 depends on ARCH_ZYNQ || ARCH_ZYNQMP
609 select GPIOLIB_IRQCHIP
611 Say yes here to support Xilinx Zynq GPIO controller.
614 bool "ZTE ZX GPIO support"
615 depends on ARCH_ZX || COMPILE_TEST
616 select GPIOLIB_IRQCHIP
618 Say yes here to support the GPIO device on ZTE ZX SoCs.
620 config GPIO_LOONGSON1
621 tristate "Loongson1 GPIO support"
622 depends on MACH_LOONGSON32
625 Say Y or M here to support GPIO on Loongson1 SoCs.
629 menu "Port-mapped I/O GPIO drivers"
630 depends on X86 # Unconditional I/O space access
632 config GPIO_104_DIO_48E
633 tristate "ACCES 104-DIO-48E GPIO support"
636 select GPIOLIB_IRQCHIP
638 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
639 104-DIO-24E). The base port addresses for the devices may be
640 configured via the base module parameter. The interrupt line numbers
641 for the devices may be configured via the irq module parameter.
643 config GPIO_104_IDIO_16
644 tristate "ACCES 104-IDIO-16 GPIO support"
647 select GPIOLIB_IRQCHIP
649 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
650 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
651 base port addresses for the devices may be configured via the base
652 module parameter. The interrupt line numbers for the devices may be
653 configured via the irq module parameter.
655 config GPIO_104_IDI_48
656 tristate "ACCES 104-IDI-48 GPIO support"
659 select GPIOLIB_IRQCHIP
661 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
662 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
663 the devices may be configured via the base module parameter. The
664 interrupt line numbers for the devices may be configured via the irq
668 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
670 This option enables support for GPIOs found on Fintek Super-I/O
671 chips F71869, F71869A, F71882FG, F71889F and F81866.
673 To compile this driver as a module, choose M here: the module will
674 be called f7188x-gpio.
677 tristate "Diamond Systems GPIO-MM GPIO support"
681 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
683 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
684 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
685 support for these 48 channels of digital I/O.
687 The base port addresses for the devices may be configured via the base
688 array module parameter.
691 tristate "IT87xx GPIO support"
693 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
695 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
696 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
699 To compile this driver as a module, choose M here: the module will
703 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
704 depends on (X86 || COMPILE_TEST) && PCI
708 Say yes here to support GPIO interface on Intel Poulsbo SCH,
709 Intel Tunnel Creek processor, Intel Centerton processor or
710 Intel Quark X1000 SoC.
712 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
713 powered by the core power rail and are turned off during sleep
714 modes (S3 and higher). The remaining four GPIOs are powered by
715 the Intel SCH suspend power supply. These GPIOs remain
716 active during S3. The suspend powered GPIOs can be used to wake the
717 system from the Suspend-to-RAM state.
719 The Intel Tunnel Creek processor has 5 GPIOs powered by the
720 core power rail and 9 from suspend power supply.
722 The Intel Centerton processor has a total of 30 GPIO pins.
723 Twenty-one are powered by the core power rail and 9 from the
724 suspend power supply.
726 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
727 power well and 6 from the suspend power well.
730 tristate "SMSC SCH311x SuperI/O GPIO"
732 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
733 SCH3116 "Super I/O" chipsets.
735 To compile this driver as a module, choose M here: the module will
736 be called gpio-sch311x.
739 tristate "TS-5500 DIO blocks and compatibles"
740 depends on TS5500 || COMPILE_TEST
742 This driver supports Digital I/O exposed by pin blocks found on some
743 Technologic Systems platforms. It includes, but is not limited to, 3
744 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
748 tristate "Winbond Super I/O GPIO support"
751 This option enables support for GPIOs found on Winbond Super I/O
753 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
756 You will need to provide a module parameter "gpios", or a
757 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
758 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
760 To compile this driver as a module, choose M here: the module will
761 be called gpio-winbond.
764 tristate "WinSystems WS16C48 GPIO support"
766 select GPIOLIB_IRQCHIP
768 Enables GPIO support for the WinSystems WS16C48. The base port
769 addresses for the devices may be configured via the base module
770 parameter. The interrupt line numbers for the devices may be
771 configured via the irq module parameter.
775 menu "I2C GPIO expanders"
779 tristate "ADP5588 I2C GPIO expander"
781 This option enables support for 18 GPIOs found
782 on Analog Devices ADP5588 GPIO Expanders.
784 config GPIO_ADP5588_IRQ
785 bool "Interrupt controller support for ADP5588"
786 depends on GPIO_ADP5588=y
787 select GPIOLIB_IRQCHIP
789 Say yes here to enable the adp5588 to be used as an interrupt
790 controller. It requires the driver to be built in the kernel.
793 tristate "Avionic Design N-bit GPIO expander"
795 select GPIOLIB_IRQCHIP
797 This option enables support for N GPIOs found on Avionic Design
798 I2C GPIO expanders. The register space will be extended by powers
799 of two, so the controller will need to accommodate for that. For
800 example: if a controller provides 48 pins, 6 registers will be
801 enough to represent all pins, but the driver will assume a
802 register layout for 64 pins (8 registers).
805 tristate "Maxim MAX7300 GPIO expander"
808 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
811 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
813 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
814 Port Expanders. Each IO port on these chips has a fixed role of
815 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
816 Input and Output (designed by 'P'). The combinations are listed
819 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
820 max7322 (4I4O), max7323 (4P4O)
822 16 bits: max7324 (8I8O), max7325 (8P8O),
823 max7326 (4I12O), max7327 (4P12O)
825 Board setup code must specify the model to use, and the start
826 number for these GPIOs.
828 config GPIO_MAX732X_IRQ
829 bool "Interrupt controller support for MAX732x"
830 depends on GPIO_MAX732X=y
831 select GPIOLIB_IRQCHIP
833 Say yes here to enable the max732x to be used as an interrupt
834 controller. It requires the driver to be built in the kernel.
836 config GPIO_MC9S08DZ60
837 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
838 depends on I2C=y && MACH_MX35_3DS
840 Select this to enable the MC9S08DZ60 GPIO driver
843 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
845 Say yes here to provide access to several register-oriented
846 SMBus I/O expanders, made mostly by NXP or TI. Compatible
849 4 bits: pca9536, pca9537
851 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
852 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
854 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
859 40 bits: pca9505, pca9698
861 config GPIO_PCA953X_IRQ
862 bool "Interrupt controller support for PCA953x"
863 depends on GPIO_PCA953X=y
864 select GPIOLIB_IRQCHIP
866 Say yes here to enable the pca953x to be used as an interrupt
867 controller. It requires the driver to be built in the kernel.
870 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
871 select GPIOLIB_IRQCHIP
874 Say yes here to provide access to most "quasi-bidirectional" I2C
875 GPIO expanders used for additional digital outputs or inputs.
876 Most of these parts are from NXP, though TI is a second source for
877 some of them. Compatible models include:
879 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
880 pca9670, pca9672, pca9674, pca9674a,
883 16 bits: pcf8575, pcf8575c, pca8575,
884 pca9671, pca9673, pca9675
886 Your board setup code will need to declare the expanders in
887 use, and assign numbers to the GPIOs they expose. Those GPIOs
888 can then be used from drivers and other kernel code, just like
889 other GPIOs, but only accessible from task contexts.
891 This driver provides an in-kernel interface to those GPIOs using
892 platform-neutral GPIO calls.
895 tristate "TPIC2810 8-Bit I2C GPO expander"
897 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
899 To compile this driver as a module, choose M here: the module will
900 be called gpio-tpic2810.
903 tristate "Technologic Systems FPGA I2C GPIO"
904 depends on SOC_IMX6 || COMPILE_TEST
907 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
908 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
912 menu "MFD GPIO expanders"
915 tristate "GPIO Support for ADP5520 PMIC"
916 depends on PMIC_ADP5520
918 This option enables support for on-chip GPIO found
919 on Analog Devices ADP5520 PMICs.
921 config GPIO_ALTERA_A10SR
922 tristate "Altera Arria10 System Resource GPIO"
923 depends on MFD_ALTERA_A10SR
925 Driver for Arria10 Development Kit GPIO expansion which
926 includes reads of pushbuttons and DIP switches as well
930 tristate "Wolfson Microelectronics Arizona class devices"
931 depends on MFD_ARIZONA
933 Support for GPIOs on Wolfson Arizona class devices.
935 config GPIO_BD9571MWV
936 tristate "ROHM BD9571 GPIO support"
937 depends on MFD_BD9571MWV
939 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
940 available on the ROHM PMIC in total, both of which can also
943 This driver can also be built as a module. If so, the module
944 will be called gpio-bd9571mwv.
946 config GPIO_CRYSTAL_COVE
947 tristate "GPIO support for Crystal Cove PMIC"
948 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
949 select GPIOLIB_IRQCHIP
951 Support for GPIO pins on Crystal Cove PMIC.
953 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
956 This driver can also be built as a module. If so, the module will be
957 called gpio-crystalcove.
960 tristate "AMD CS5535/CS5536 GPIO support"
961 depends on X86 || MIPS || COMPILE_TEST
962 depends on MFD_CS5535
964 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
965 can be used for quite a number of things. The CS5535/6 is found on
966 AMD Geode and Lemote Yeeloong devices.
971 tristate "Dialog DA9052 GPIO"
972 depends on PMIC_DA9052
974 Say yes here to enable the GPIO driver for the DA9052 chip.
977 tristate "Dialog Semiconductor DA9055 GPIO"
978 depends on MFD_DA9055
980 Say yes here to enable the GPIO driver for the DA9055 chip.
982 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
983 be controller by this driver.
985 If driver is built as a module it will be called gpio-da9055.
988 tristate "Diolan DLN2 GPIO support"
990 select GPIOLIB_IRQCHIP
993 Select this option to enable GPIO driver for the Diolan DLN2
996 This driver can also be built as a module. If so, the module
997 will be called gpio-dln2.
1000 bool "HTC EGPIO support"
1001 depends on GPIOLIB && ARM
1003 This driver supports the CPLD egpio chip present on
1004 several HTC phones. It provides basic support for input
1005 pins, output pins, and irqs.
1007 config GPIO_JANZ_TTL
1008 tristate "Janz VMOD-TTL Digital IO Module"
1009 depends on MFD_JANZ_CMODIO
1011 This enables support for the Janz VMOD-TTL Digital IO module.
1012 This driver provides support for driving the pins in output
1013 mode only. Input mode is not supported.
1016 tristate "Kontron ETX / COMexpress GPIO"
1017 depends on MFD_KEMPLD
1019 This enables support for the PLD GPIO interface on some Kontron ETX
1020 and COMexpress (ETXexpress) modules.
1022 This driver can also be built as a module. If so, the module will be
1026 tristate "TI/National Semiconductor LP3943 GPIO expander"
1027 depends on MFD_LP3943
1029 GPIO driver for LP3943 MFD.
1030 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1031 Open drain outputs are required for this usage.
1034 tristate "TI LP873X GPO"
1035 depends on MFD_TI_LP873X
1037 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1040 This driver can also be built as a module. If so, the module will be
1044 tristate "TI LP87565 GPIO"
1045 depends on MFD_TI_LP87565
1047 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1050 This driver can also be built as a module. If so, the module will be
1051 called gpio-lp87565.
1054 tristate "Cirrus Logic Madera class codecs"
1055 depends on PINCTRL_MADERA
1057 Support for GPIOs on Cirrus Logic Madera class codecs.
1059 config GPIO_MAX77620
1060 tristate "GPIO support for PMIC MAX77620 and MAX20024"
1061 depends on MFD_MAX77620
1062 select GPIOLIB_IRQCHIP
1064 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1065 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1066 driver also provides interrupt support for each of the gpios.
1067 Say yes here to enable the max77620 to be used as gpio controller.
1070 bool "Intel MSIC mixed signal gpio support"
1071 depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
1073 Enable support for GPIO on intel MSIC controllers found in
1077 bool "TI PALMAS series PMICs GPIO"
1078 depends on MFD_PALMAS
1080 Select this option to enable GPIO driver for the TI PALMAS
1084 bool "RICOH RC5T583 GPIO"
1085 depends on MFD_RC5T583
1087 Select this option to enable GPIO driver for the Ricoh RC5T583
1089 This driver provides the support for driving/reading the gpio pins
1090 of RC5T583 device through standard gpio library.
1094 depends on MFD_STMPE
1096 select GPIOLIB_IRQCHIP
1098 This enables support for the GPIOs found on the STMPE I/O
1102 bool "TC3589X GPIOs"
1103 depends on MFD_TC3589X
1105 select GPIOLIB_IRQCHIP
1107 This enables support for the GPIOs found on the TC3589X
1110 config GPIO_TIMBERDALE
1111 bool "Support for timberdale GPIO IP"
1112 depends on MFD_TIMBERDALE
1114 Add support for the GPIO IP in the timberdale FPGA.
1116 config GPIO_TPS65086
1117 tristate "TI TPS65086 GPO"
1118 depends on MFD_TPS65086
1120 This driver supports the GPO on TI TPS65086x PMICs.
1122 config GPIO_TPS65218
1123 tristate "TPS65218 GPIO"
1124 depends on MFD_TPS65218
1126 Select this option to enable GPIO driver for the TPS65218
1129 config GPIO_TPS6586X
1130 bool "TPS6586X GPIO"
1131 depends on MFD_TPS6586X
1133 Select this option to enable GPIO driver for the TPS6586X
1136 config GPIO_TPS65910
1137 bool "TPS65910 GPIO"
1138 depends on MFD_TPS65910
1140 Select this option to enable GPIO driver for the TPS65910
1143 config GPIO_TPS65912
1144 tristate "TI TPS65912 GPIO"
1145 depends on MFD_TPS65912
1147 This driver supports TPS65912 gpio chip
1149 config GPIO_TPS68470
1150 bool "TPS68470 GPIO"
1151 depends on MFD_TPS68470
1153 Select this option to enable GPIO driver for the TPS68470
1155 There are 7 GPIOs and few sensor related GPIOs supported
1156 by the TPS68470. While the 7 GPIOs can be configured as
1157 input or output as appropriate, the sensor related GPIOs
1158 are "output only" GPIOs.
1160 This driver config is bool, as the GPIO functionality
1161 of the TPS68470 must be available before dependent
1165 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1166 depends on TWL4030_CORE
1168 Say yes here to access the GPIO signals of various multi-function
1169 power management chips from Texas Instruments.
1172 tristate "TWL6040 GPO"
1173 depends on TWL6040_CORE
1175 Say yes here to access the GPO signals of twl6040
1176 audio chip from Texas Instruments.
1179 tristate "Philips UCB1400 GPIO"
1180 depends on UCB1400_CORE
1182 This enables support for the Philips UCB1400 GPIO pins.
1183 The UCB1400 is an AC97 audio codec.
1185 config GPIO_WHISKEY_COVE
1186 tristate "GPIO support for Whiskey Cove PMIC"
1187 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1188 select GPIOLIB_IRQCHIP
1190 Support for GPIO pins on Whiskey Cove PMIC.
1192 Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1195 This driver can also be built as a module. If so, the module will be
1199 tristate "WM831x GPIOs"
1200 depends on MFD_WM831X
1202 Say yes here to access the GPIO signals of WM831x power management
1203 chips from Wolfson Microelectronics.
1206 tristate "WM8350 GPIOs"
1207 depends on MFD_WM8350
1209 Say yes here to access the GPIO signals of WM8350 power management
1210 chips from Wolfson Microelectronics.
1213 tristate "WM8994 GPIOs"
1214 depends on MFD_WM8994
1216 Say yes here to access the GPIO signals of WM8994 audio hub
1217 CODECs from Wolfson Microelectronics.
1221 menu "PCI GPIO expanders"
1225 tristate "AMD 8111 GPIO driver"
1226 depends on X86 || COMPILE_TEST
1228 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1230 Note, that usually system firmware/ACPI handles GPIO pins on their
1231 own and users might easily break their systems with uncarefull usage
1237 tristate "BT8XX GPIO abuser"
1238 depends on VIDEO_BT848=n
1240 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1241 as a cheap PCI GPIO card.
1243 This chip can be found on Miro, Hauppauge and STB TV-cards.
1245 The card needs to be physically altered for using it as a
1246 GPIO card. For more information on how to build a GPIO card
1247 from a BT8xx TV card, see the documentation file at
1248 Documentation/bt8xxgpio.txt
1252 config GPIO_INTEL_MID
1253 bool "Intel MID GPIO support"
1254 depends on X86_INTEL_MID
1255 select GPIOLIB_IRQCHIP
1257 Say Y here to support Intel MID GPIO.
1259 config GPIO_MERRIFIELD
1260 tristate "Intel Merrifield GPIO support"
1261 depends on X86_INTEL_MID
1262 select GPIOLIB_IRQCHIP
1264 Say Y here to support Intel Merrifield GPIO.
1267 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1268 depends on X86 || COMPILE_TEST
1269 select GENERIC_IRQ_CHIP
1271 ML7213 is companion chip for Intel Atom E6xx series.
1272 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1273 Hub) which is for IVI(In-Vehicle Infotainment) use.
1274 This driver can access the IOH's GPIO device.
1277 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1278 depends on X86_32 || MIPS || COMPILE_TEST
1279 select GENERIC_IRQ_CHIP
1281 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1282 which is an IOH(Input/Output Hub) for x86 embedded processor.
1283 This driver can access PCH GPIO device.
1285 This driver also can be used for LAPIS Semiconductor IOH(Input/
1286 Output Hub), ML7223 and ML7831.
1287 ML7223 IOH is for MP(Media Phone) use.
1288 ML7831 IOH is for general purpose use.
1289 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1290 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1292 config GPIO_PCI_IDIO_16
1293 tristate "ACCES PCI-IDIO-16 GPIO support"
1294 select GPIOLIB_IRQCHIP
1296 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1297 generated when any of the inputs change state (low to high or high to
1298 low). Input filter control is not supported by this driver, and the
1299 input filters are deactivated by this driver.
1301 config GPIO_PCIE_IDIO_24
1302 tristate "ACCES PCIe-IDIO-24 GPIO support"
1303 select GPIOLIB_IRQCHIP
1305 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1306 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1307 when any of the inputs change state (low to high or high to low).
1308 Input filter control is not supported by this driver, and the input
1309 filters are deactivated by this driver.
1312 tristate "RDC R-321x GPIO support"
1316 Support for the RDC R321x SoC GPIOs over southbridge
1317 PCI configuration space.
1319 config GPIO_SODAVILLE
1320 bool "Intel Sodaville GPIO support"
1321 depends on X86 && OF
1323 select GENERIC_IRQ_CHIP
1325 Say Y here to support Intel Sodaville GPIO.
1329 menu "SPI GPIO expanders"
1330 depends on SPI_MASTER
1333 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1336 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1337 shift registers. This driver can be used to provide access
1338 to more gpio outputs.
1340 config GPIO_MAX3191X
1341 tristate "Maxim MAX3191x industrial serializer"
1344 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1345 MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1346 chip to make 8 digital 24V inputs available via SPI. Supports
1347 CRC checksums to guard against electromagnetic interference,
1348 as well as undervoltage and overtemperature detection.
1351 tristate "Maxim MAX7301 GPIO expander"
1354 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1357 tristate "Freescale MC33880 high-side/low-side switch"
1359 SPI driver for Freescale MC33880 high-side/low-side switch.
1360 This provides GPIO interface supporting inputs and outputs.
1363 tristate "Generic parallel-in/serial-out shift register"
1365 GPIO driver for SPI compatible parallel-in/serial-out shift
1366 registers. These are input only devices.
1369 tristate "EXAR XRA1403 16-bit GPIO expander"
1372 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1376 menu "USB GPIO expanders"
1379 config GPIO_VIPERBOARD
1380 tristate "Viperboard GPIO a & b support"
1381 depends on MFD_VIPERBOARD
1383 Say yes here to access the GPIO signals of Nano River
1384 Technologies Viperboard. There are two GPIO chips on the
1385 board: gpioa and gpiob.
1386 See viperboard API specification and Nano
1387 River Tech's viperboard.h for detailed meaning
1388 of the module parameters.