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.
38 config GPIOLIB_IRQCHIP
43 bool "Debug GPIO calls"
44 depends on DEBUG_KERNEL
46 Say Y here to add some extra checks and diagnostics to GPIO calls.
47 These checks help ensure that GPIOs have been properly initialized
48 before they are used, and that sleeping calls are not made from
49 non-sleeping contexts. They can make bitbanged serial protocols
50 slower. The diagnostics help catch the type of setup errors
51 that are most common when setting up new platforms or boards.
54 bool "/sys/class/gpio/... (sysfs interface)"
57 Say Y here to add a sysfs interface for GPIOs.
59 This is mostly useful to work around omissions in a system's
60 kernel support. Those are common in custom and semicustom
61 hardware assembled using standard kernels with a minimum of
62 custom patches. In those cases, userspace code may import
63 a given GPIO from the kernel, if no kernel driver requested it.
65 Kernel drivers may also request that a particular GPIO be
66 exported to userspace; this can be useful when debugging.
69 depends on HAS_IOMEM # Only for IOMEM drivers
72 # put drivers in the right section, in alphabetical order
74 # This symbol is selected by both I2C and SPI expanders
78 menu "Memory mapped GPIO drivers"
82 tristate "GPIO driver for 74xx-ICs with MMIO access"
86 Say yes here to support GPIO functionality for 74xx-compatible ICs
87 with MMIO access. Compatible models include:
88 1 bit: 741G125 (Input), 741G74 (Output)
89 2 bits: 742G125 (Input), 7474 (Output)
90 4 bits: 74125 (Input), 74175 (Output)
91 6 bits: 74365 (Input), 74174 (Output)
92 8 bits: 74244 (Input), 74273 (Output)
93 16 bits: 741624 (Input), 7416374 (Output)
96 tristate "Altera GPIO"
98 select GPIOLIB_IRQCHIP
100 Say Y or M here to build support for the Altera PIO device.
102 If driver is built as a module it will be called gpio-altera.
105 tristate "AMD Promontory GPIO support"
109 driver for GPIO functionality on Promontory IOHub
110 Require ACPI ASL code to enumerate as a platform device.
113 tristate "Aspeed GPIO support"
114 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
115 select GPIOLIB_IRQCHIP
117 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
120 tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
122 depends on ATH79 || COMPILE_TEST
124 select GPIOLIB_IRQCHIP
126 Select this option to enable GPIO driver for
127 Atheros AR71XX/AR724X/AR913X SoC devices.
130 tristate "X-Powers AXP209 PMIC GPIO Support"
131 depends on MFD_AXP20X
133 Say yes to enable GPIO support for the AXP209 PMIC
136 bool "Broadcom Kona GPIO"
137 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
139 Turn on GPIO support for Broadcom "Kona" chips.
142 tristate "BRCMSTB GPIO support"
143 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
144 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
146 select GPIOLIB_IRQCHIP
148 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
151 tristate "CLPS711X GPIO support"
152 depends on ARCH_CLPS711X || COMPILE_TEST
155 Say yes here to support GPIO on CLPS711X SoCs.
158 bool "TI Davinci/Keystone GPIO support"
159 default y if ARCH_DAVINCI
160 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
162 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
165 tristate "Synopsys DesignWare APB GPIO driver"
167 select GENERIC_IRQ_CHIP
169 Say Y or M here to build support for the Synopsys DesignWare APB
173 tristate "Emma Mobile GPIO"
174 depends on ARM && OF_GPIO
176 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
180 depends on ARCH_EP93XX
184 bool "Axis ETRAX FS General I/O"
185 depends on CRIS || COMPILE_TEST
188 select GPIOLIB_IRQCHIP
190 Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.
193 bool "GE FPGA based GPIO"
197 Support for common GPIO functionality provided on some GE Single Board
200 This driver provides basic support (configure as input or output, read
201 and write pin state) for GPIO implemented in a number of GE single
204 config GPIO_GENERIC_PLATFORM
205 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
208 Say yes here to support basic platform_device memory-mapped GPIO controllers.
211 tristate "Aeroflex Gaisler GRGPIO support"
216 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
217 VHDL IP core library.
220 tristate "Intel ICH GPIO"
221 depends on PCI && X86
225 Say yes here to support the GPIO functionality of a number of Intel
226 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
227 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
228 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
233 tristate "Intel IOP GPIO"
234 depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST
237 Say yes here to support the GPIO functionality of a number of Intel
243 bool "Loongson-2/3 GPIO support"
244 depends on CPU_LOONGSON2 || CPU_LOONGSON3
246 driver for GPIO functionality on Loongson-2F/3A/3B processors.
249 tristate "NXP LPC18XX/43XX GPIO support"
250 default y if ARCH_LPC18XX
251 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
253 Select this option to enable GPIO driver for
254 NXP LPC18XX/43XX devices.
256 config GPIO_LYNXPOINT
257 tristate "Intel Lynxpoint GPIO support"
258 depends on ACPI && X86
259 select GPIOLIB_IRQCHIP
261 driver for GPIO functionality on Intel Lynxpoint PCH chipset
262 Requires ACPI device enumeration code to set up a platform device.
265 bool "GPIO support for Fujitsu MB86S7x Platforms"
266 depends on ARCH_MB86S7X || COMPILE_TEST
268 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
271 tristate "MEN 16Z127 GPIO support"
275 Say yes here to support the MEN 16Z127 GPIO Controller
277 config GPIO_MM_LANTIQ
278 bool "Lantiq Memory mapped GPIOs"
279 depends on LANTIQ && SOC_XWAY
281 This enables support for memory mapped GPIOs on the External Bus Unit
282 (EBU) found on Lantiq SoCs. The gpios are output only as they are
283 created by attaching a 16bit latch to the bus.
286 tristate "GPIO Testing Driver"
287 depends on GPIOLIB && SYSFS
290 This enables GPIO Testing driver, which provides a way to test GPIO
291 subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
292 must be selected for this test.
293 User could use it through the script in
294 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
298 bool "MOXART GPIO support"
299 depends on ARCH_MOXART || COMPILE_TEST
302 Select this option to enable GPIO driver for
303 MOXA ART SoC devices.
307 depends on PPC_MPC52xx
310 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
311 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
312 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
317 Say Y here if you're going to use hardware that connects to the
318 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
322 depends on PLAT_ORION
324 select GENERIC_IRQ_CHIP
330 select GENERIC_IRQ_CHIP
336 select GENERIC_IRQ_CHIP
339 tristate "Cavium OCTEON GPIO"
340 depends on GPIOLIB && CAVIUM_OCTEON_SOC
343 Say yes here to support the on-chip GPIO lines on the OCTEON
347 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
348 default y if ARCH_OMAP
350 select GENERIC_IRQ_CHIP
351 select GPIOLIB_IRQCHIP
353 Say yes here to enable GPIO support for TI OMAP SoCs.
356 bool "PrimeCell PL061 GPIO support"
359 select GPIOLIB_IRQCHIP
361 Say yes here to support the PrimeCell PL061 GPIO device
364 bool "PXA GPIO support"
365 depends on ARCH_PXA || ARCH_MMP
367 Say yes here to support the PXA GPIO device
370 tristate "Renesas R-Car GPIO"
371 depends on ARCH_RENESAS || COMPILE_TEST
372 select GPIOLIB_IRQCHIP
374 Say yes here to support GPIO on Renesas R-Car SoCs.
376 config GPIO_SPEAR_SPICS
377 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
378 depends on PLAT_SPEAR
379 select GENERIC_IRQ_CHIP
381 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
384 bool "STA2x11/ConneXt GPIO support"
385 depends on MFD_STA2X11
386 select GENERIC_IRQ_CHIP
388 Say yes here to support the STA2x11/ConneXt GPIO device.
389 The GPIO module has 128 GPIO pins with alternate functions.
392 bool "XWAY STP GPIOs"
395 This enables support for the Serial To Parallel (STP) unit found on
396 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
397 that can be up to 24 bit. This peripheral is aimed at driving leds.
398 Some of the gpios/leds can be auto updated by the soc with dsl and
402 tristate "GPIO based on SYSCON"
403 depends on MFD_SYSCON && OF
405 Say yes here to support GPIO functionality though SYSCON driver.
409 select GENERIC_IRQ_CHIP
413 bool "NVIDIA Tegra GPIO support"
415 depends on ARCH_TEGRA || COMPILE_TEST
418 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
421 tristate "TS-4800 DIO blocks and compatibles"
423 depends on SOC_IMX51 || COMPILE_TEST
426 This driver support TS-4800 FPGA GPIO controllers.
429 bool "Toumaz Xenif TZ1090 GPIO support"
430 depends on SOC_TZ1090
431 select GENERIC_IRQ_CHIP
434 Say yes here to support Toumaz Xenif TZ1090 GPIOs.
436 config GPIO_TZ1090_PDC
437 bool "Toumaz Xenif TZ1090 PDC GPIO support"
438 depends on SOC_TZ1090
441 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
445 depends on ARCH_MXC && SOC_VF610
446 select GPIOLIB_IRQCHIP
448 Say yes here to support Vybrid vf610 GPIOs.
451 tristate "NEC VR4100 series General-purpose I/O Uint support"
452 depends on CPU_VR41XX
454 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
457 tristate "VIA VX855/VX875 GPIO"
462 Support access to the VX855/VX875 GPIO lines through the gpio library.
464 This driver provides common support for accessing the device,
465 additional drivers must be enabled in order to use the
466 functionality of the device.
469 bool "APM X-Gene GPIO controller support"
470 depends on ARM64 && OF_GPIO
472 This driver is to support the GPIO block within the APM X-Gene SoC
473 platform's generic flash controller. The GPIO pins are muxed with
474 the generic flash controller's address and data pins. Say yes
475 here to enable the GFC GPIO functionality.
478 tristate "APM X-Gene GPIO standby controller support"
479 depends on ARCH_XGENE && OF_GPIO
481 select GPIOLIB_IRQCHIP
483 This driver supports the GPIO block within the APM X-Gene
484 Standby Domain. Say yes here to enable the GPIO functionality.
487 tristate "Xilinx GPIO support"
490 Say yes here to support the Xilinx FPGA GPIO device
493 tristate "Netlogic XLP GPIO support"
494 depends on OF_GPIO && (CPU_XLP || ARCH_VULCAN || COMPILE_TEST)
495 select GPIOLIB_IRQCHIP
497 This driver provides support for GPIO interface on Netlogic XLP MIPS64
498 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
504 bool "Xtensa GPIO32 support"
506 depends on HAVE_XTENSA_GPIO32
509 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
510 and EXPSTATE (output) ports
513 bool "LSI ZEVIO SoC memory mapped GPIOs"
514 depends on ARM && OF_GPIO
516 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
519 tristate "Xilinx Zynq GPIO support"
520 depends on ARCH_ZYNQ || ARCH_ZYNQMP
521 select GPIOLIB_IRQCHIP
523 Say yes here to support Xilinx Zynq GPIO controller.
526 bool "ZTE ZX GPIO support"
527 select GPIOLIB_IRQCHIP
529 Say yes here to support the GPIO device on ZTE ZX SoCs.
531 config GPIO_LOONGSON1
532 tristate "Loongson1 GPIO support"
533 depends on MACH_LOONGSON32
536 Say Y or M here to support GPIO on Loongson1 SoCs.
540 menu "Port-mapped I/O GPIO drivers"
541 depends on X86 # Unconditional I/O space access
543 config GPIO_104_DIO_48E
544 tristate "ACCES 104-DIO-48E GPIO support"
545 depends on ISA_BUS_API
546 select GPIOLIB_IRQCHIP
548 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
549 104-DIO-24E). The base port addresses for the devices may be
550 configured via the base module parameter. The interrupt line numbers
551 for the devices may be configured via the irq module parameter.
553 config GPIO_104_IDIO_16
554 tristate "ACCES 104-IDIO-16 GPIO support"
555 depends on ISA_BUS_API
556 select GPIOLIB_IRQCHIP
558 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
559 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
560 base port addresses for the devices may be configured via the base
561 module parameter. The interrupt line numbers for the devices may be
562 configured via the irq module parameter.
564 config GPIO_104_IDI_48
565 tristate "ACCES 104-IDI-48 GPIO support"
566 depends on ISA_BUS_API
567 select GPIOLIB_IRQCHIP
569 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
570 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
571 the devices may be configured via the base module parameter. The
572 interrupt line numbers for the devices may be configured via the irq
576 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
578 This option enables support for GPIOs found on Fintek Super-I/O
579 chips F71869, F71869A, F71882FG, F71889F and F81866.
581 To compile this driver as a module, choose M here: the module will
582 be called f7188x-gpio.
585 tristate "Diamond Systems GPIO-MM GPIO support"
586 depends on ISA_BUS_API
588 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
590 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
591 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
592 support for these 48 channels of digital I/O.
594 The base port addresses for the devices may be configured via the base
595 array module parameter.
598 tristate "IT87xx GPIO support"
600 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
602 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
603 supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
605 To compile this driver as a module, choose M here: the module will
609 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
614 Say yes here to support GPIO interface on Intel Poulsbo SCH,
615 Intel Tunnel Creek processor, Intel Centerton processor or
616 Intel Quark X1000 SoC.
618 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
619 powered by the core power rail and are turned off during sleep
620 modes (S3 and higher). The remaining four GPIOs are powered by
621 the Intel SCH suspend power supply. These GPIOs remain
622 active during S3. The suspend powered GPIOs can be used to wake the
623 system from the Suspend-to-RAM state.
625 The Intel Tunnel Creek processor has 5 GPIOs powered by the
626 core power rail and 9 from suspend power supply.
628 The Intel Centerton processor has a total of 30 GPIO pins.
629 Twenty-one are powered by the core power rail and 9 from the
630 suspend power supply.
632 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
633 power well and 6 from the suspend power well.
636 tristate "SMSC SCH311x SuperI/O GPIO"
638 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
639 SCH3116 "Super I/O" chipsets.
641 To compile this driver as a module, choose M here: the module will
642 be called gpio-sch311x.
645 tristate "TS-5500 DIO blocks and compatibles"
646 depends on TS5500 || COMPILE_TEST
648 This driver supports Digital I/O exposed by pin blocks found on some
649 Technologic Systems platforms. It includes, but is not limited to, 3
650 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
654 tristate "WinSystems WS16C48 GPIO support"
655 depends on ISA_BUS_API
656 select GPIOLIB_IRQCHIP
658 Enables GPIO support for the WinSystems WS16C48. The base port
659 addresses for the devices may be configured via the base module
660 parameter. The interrupt line numbers for the devices may be
661 configured via the irq module parameter.
665 menu "I2C GPIO expanders"
669 tristate "ADP5588 I2C GPIO expander"
671 This option enables support for 18 GPIOs found
672 on Analog Devices ADP5588 GPIO Expanders.
674 config GPIO_ADP5588_IRQ
675 bool "Interrupt controller support for ADP5588"
676 depends on GPIO_ADP5588=y
678 Say yes here to enable the adp5588 to be used as an interrupt
679 controller. It requires the driver to be built in the kernel.
682 tristate "Avionic Design N-bit GPIO expander"
684 select GPIOLIB_IRQCHIP
686 This option enables support for N GPIOs found on Avionic Design
687 I2C GPIO expanders. The register space will be extended by powers
688 of two, so the controller will need to accommodate for that. For
689 example: if a controller provides 48 pins, 6 registers will be
690 enough to represent all pins, but the driver will assume a
691 register layout for 64 pins (8 registers).
694 tristate "Maxim MAX7300 GPIO expander"
697 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
700 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
702 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
703 Port Expanders. Each IO port on these chips has a fixed role of
704 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
705 Input and Output (designed by 'P'). The combinations are listed
708 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
709 max7322 (4I4O), max7323 (4P4O)
711 16 bits: max7324 (8I8O), max7325 (8P8O),
712 max7326 (4I12O), max7327 (4P12O)
714 Board setup code must specify the model to use, and the start
715 number for these GPIOs.
717 config GPIO_MAX732X_IRQ
718 bool "Interrupt controller support for MAX732x"
719 depends on GPIO_MAX732X=y
720 select GPIOLIB_IRQCHIP
722 Say yes here to enable the max732x to be used as an interrupt
723 controller. It requires the driver to be built in the kernel.
725 config GPIO_MC9S08DZ60
726 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
727 depends on I2C=y && MACH_MX35_3DS
729 Select this to enable the MC9S08DZ60 GPIO driver
732 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
734 Say yes here to provide access to several register-oriented
735 SMBus I/O expanders, made mostly by NXP or TI. Compatible
738 4 bits: pca9536, pca9537
740 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
741 pca9556, pca9557, pca9574, tca6408, xra1202
743 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
748 40 bits: pca9505, pca9698
750 config GPIO_PCA953X_IRQ
751 bool "Interrupt controller support for PCA953x"
752 depends on GPIO_PCA953X=y
753 select GPIOLIB_IRQCHIP
755 Say yes here to enable the pca953x to be used as an interrupt
756 controller. It requires the driver to be built in the kernel.
759 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
760 select GPIOLIB_IRQCHIP
763 Say yes here to provide access to most "quasi-bidirectional" I2C
764 GPIO expanders used for additional digital outputs or inputs.
765 Most of these parts are from NXP, though TI is a second source for
766 some of them. Compatible models include:
768 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
769 pca9670, pca9672, pca9674, pca9674a,
772 16 bits: pcf8575, pcf8575c, pca8575,
773 pca9671, pca9673, pca9675
775 Your board setup code will need to declare the expanders in
776 use, and assign numbers to the GPIOs they expose. Those GPIOs
777 can then be used from drivers and other kernel code, just like
778 other GPIOs, but only accessible from task contexts.
780 This driver provides an in-kernel interface to those GPIOs using
781 platform-neutral GPIO calls.
784 bool "Semtech SX150x I2C GPIO expander"
786 select GPIOLIB_IRQCHIP
789 Say yes here to provide support for Semtech SX150-series I2C
790 GPIO expanders. Compatible models include:
796 tristate "TPIC2810 8-Bit I2C GPO expander"
798 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
800 To compile this driver as a module, choose M here: the module will
801 be called gpio-tpic2810.
804 tristate "Technologic Systems FPGA I2C GPIO"
807 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
808 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
812 menu "MFD GPIO expanders"
815 tristate "GPIO Support for ADP5520 PMIC"
816 depends on PMIC_ADP5520
818 This option enables support for on-chip GPIO found
819 on Analog Devices ADP5520 PMICs.
822 tristate "Wolfson Microelectronics Arizona class devices"
823 depends on MFD_ARIZONA
825 Support for GPIOs on Wolfson Arizona class devices.
827 config GPIO_CRYSTAL_COVE
828 tristate "GPIO support for Crystal Cove PMIC"
829 depends on INTEL_SOC_PMIC
830 select GPIOLIB_IRQCHIP
832 Support for GPIO pins on Crystal Cove PMIC.
834 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
837 This driver can also be built as a module. If so, the module will be
838 called gpio-crystalcove.
841 tristate "AMD CS5535/CS5536 GPIO support"
842 depends on MFD_CS5535
844 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
845 can be used for quite a number of things. The CS5535/6 is found on
846 AMD Geode and Lemote Yeeloong devices.
851 tristate "Dialog DA9052 GPIO"
852 depends on PMIC_DA9052
854 Say yes here to enable the GPIO driver for the DA9052 chip.
857 tristate "Dialog Semiconductor DA9055 GPIO"
858 depends on MFD_DA9055
860 Say yes here to enable the GPIO driver for the DA9055 chip.
862 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
863 be controller by this driver.
865 If driver is built as a module it will be called gpio-da9055.
868 tristate "Diolan DLN2 GPIO support"
870 select GPIOLIB_IRQCHIP
873 Select this option to enable GPIO driver for the Diolan DLN2
876 This driver can also be built as a module. If so, the module
877 will be called gpio-dln2.
880 bool "HTC EGPIO support"
881 depends on GPIOLIB && ARM
883 This driver supports the CPLD egpio chip present on
884 several HTC phones. It provides basic support for input
885 pins, output pins, and irqs.
888 tristate "Janz VMOD-TTL Digital IO Module"
889 depends on MFD_JANZ_CMODIO
891 This enables support for the Janz VMOD-TTL Digital IO module.
892 This driver provides support for driving the pins in output
893 mode only. Input mode is not supported.
896 tristate "Kontron ETX / COMexpress GPIO"
897 depends on MFD_KEMPLD
899 This enables support for the PLD GPIO interface on some Kontron ETX
900 and COMexpress (ETXexpress) modules.
902 This driver can also be built as a module. If so, the module will be
906 tristate "TI/National Semiconductor LP3943 GPIO expander"
907 depends on MFD_LP3943
909 GPIO driver for LP3943 MFD.
910 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
911 Open drain outputs are required for this usage.
914 tristate "TI LP873X GPO"
915 depends on MFD_TI_LP873X
917 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
920 This driver can also be built as a module. If so, the module will be
924 tristate "GPIO support for PMIC MAX77620 and MAX20024"
925 depends on MFD_MAX77620
927 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
928 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
929 driver also provides interrupt support for each of the gpios.
930 Say yes here to enable the max77620 to be used as gpio controller.
933 bool "Intel MSIC mixed signal gpio support"
934 depends on MFD_INTEL_MSIC
936 Enable support for GPIO on intel MSIC controllers found in
940 bool "TI PALMAS series PMICs GPIO"
941 depends on MFD_PALMAS
943 Select this option to enable GPIO driver for the TI PALMAS
947 bool "RICOH RC5T583 GPIO"
948 depends on MFD_RC5T583
950 Select this option to enable GPIO driver for the Ricoh RC5T583
952 This driver provides the support for driving/reading the gpio pins
953 of RC5T583 device through standard gpio library.
959 select GPIOLIB_IRQCHIP
961 This enables support for the GPIOs found on the STMPE I/O
966 depends on MFD_TC3589X
968 select GPIOLIB_IRQCHIP
970 This enables support for the GPIOs found on the TC3589X
973 config GPIO_TIMBERDALE
974 bool "Support for timberdale GPIO IP"
975 depends on MFD_TIMBERDALE
977 Add support for the GPIO IP in the timberdale FPGA.
980 tristate "TI TPS65086 GPO"
981 depends on MFD_TPS65086
983 This driver supports the GPO on TI TPS65086x PMICs.
986 tristate "TPS65218 GPIO"
987 depends on MFD_TPS65218
989 Select this option to enable GPIO driver for the TPS65218
994 depends on MFD_TPS6586X
996 Select this option to enable GPIO driver for the TPS6586X
1000 bool "TPS65910 GPIO"
1001 depends on MFD_TPS65910
1003 Select this option to enable GPIO driver for the TPS65910
1006 config GPIO_TPS65912
1007 tristate "TI TPS65912 GPIO"
1008 depends on MFD_TPS65912
1010 This driver supports TPS65912 gpio chip
1013 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1014 depends on TWL4030_CORE
1016 Say yes here to access the GPIO signals of various multi-function
1017 power management chips from Texas Instruments.
1020 tristate "TWL6040 GPO"
1021 depends on TWL6040_CORE
1023 Say yes here to access the GPO signals of twl6040
1024 audio chip from Texas Instruments.
1027 tristate "Philips UCB1400 GPIO"
1028 depends on UCB1400_CORE
1030 This enables support for the Philips UCB1400 GPIO pins.
1031 The UCB1400 is an AC97 audio codec.
1033 config GPIO_WHISKEY_COVE
1034 tristate "GPIO support for Whiskey Cove PMIC"
1035 depends on INTEL_SOC_PMIC
1036 select GPIOLIB_IRQCHIP
1038 Support for GPIO pins on Whiskey Cove PMIC.
1040 Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1043 This driver can also be built as a module. If so, the module will be
1047 tristate "WM831x GPIOs"
1048 depends on MFD_WM831X
1050 Say yes here to access the GPIO signals of WM831x power management
1051 chips from Wolfson Microelectronics.
1054 tristate "WM8350 GPIOs"
1055 depends on MFD_WM8350
1057 Say yes here to access the GPIO signals of WM8350 power management
1058 chips from Wolfson Microelectronics.
1061 tristate "WM8994 GPIOs"
1062 depends on MFD_WM8994
1064 Say yes here to access the GPIO signals of WM8994 audio hub
1065 CODECs from Wolfson Microelectronics.
1069 menu "PCI GPIO expanders"
1073 tristate "AMD 8111 GPIO driver"
1075 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1077 Note, that usually system firmware/ACPI handles GPIO pins on their
1078 own and users might easily break their systems with uncarefull usage
1084 tristate "BT8XX GPIO abuser"
1085 depends on VIDEO_BT848=n
1087 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1088 as a cheap PCI GPIO card.
1090 This chip can be found on Miro, Hauppauge and STB TV-cards.
1092 The card needs to be physically altered for using it as a
1093 GPIO card. For more information on how to build a GPIO card
1094 from a BT8xx TV card, see the documentation file at
1095 Documentation/bt8xxgpio.txt
1099 config GPIO_INTEL_MID
1100 bool "Intel MID GPIO support"
1101 depends on X86_INTEL_MID
1102 select GPIOLIB_IRQCHIP
1104 Say Y here to support Intel MID GPIO.
1106 config GPIO_MERRIFIELD
1107 tristate "Intel Merrifield GPIO support"
1108 depends on X86_INTEL_MID
1109 select GPIOLIB_IRQCHIP
1111 Say Y here to support Intel Merrifield GPIO.
1114 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1115 select GENERIC_IRQ_CHIP
1117 ML7213 is companion chip for Intel Atom E6xx series.
1118 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1119 Hub) which is for IVI(In-Vehicle Infotainment) use.
1120 This driver can access the IOH's GPIO device.
1123 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1124 depends on X86_32 || MIPS || COMPILE_TEST
1125 select GENERIC_IRQ_CHIP
1127 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1128 which is an IOH(Input/Output Hub) for x86 embedded processor.
1129 This driver can access PCH GPIO device.
1131 This driver also can be used for LAPIS Semiconductor IOH(Input/
1132 Output Hub), ML7223 and ML7831.
1133 ML7223 IOH is for MP(Media Phone) use.
1134 ML7831 IOH is for general purpose use.
1135 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1136 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1139 tristate "RDC R-321x GPIO support"
1143 Support for the RDC R321x SoC GPIOs over southbridge
1144 PCI configuration space.
1146 config GPIO_SODAVILLE
1147 bool "Intel Sodaville GPIO support"
1148 depends on X86 && OF
1150 select GENERIC_IRQ_CHIP
1152 Say Y here to support Intel Sodaville GPIO.
1156 menu "SPI GPIO expanders"
1157 depends on SPI_MASTER
1160 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1163 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1164 shift registers. This driver can be used to provide access
1165 to more gpio outputs.
1168 tristate "Maxim MAX7301 GPIO expander"
1171 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1174 tristate "Freescale MC33880 high-side/low-side switch"
1176 SPI driver for Freescale MC33880 high-side/low-side switch.
1177 This provides GPIO interface supporting inputs and outputs.
1180 tristate "Generic parallel-in/serial-out shift register"
1182 GPIO driver for SPI compatible parallel-in/serial-out shift
1183 registers. These are input only devices.
1187 menu "SPI or I2C GPIO expanders"
1188 depends on (SPI_MASTER && !I2C) || I2C
1190 config GPIO_MCP23S08
1191 tristate "Microchip MCP23xxx I/O expander"
1193 select GPIOLIB_IRQCHIP
1195 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
1197 This provides a GPIO interface supporting inputs and outputs.
1198 The I2C versions of the chips can be used as interrupt-controller.
1202 menu "USB GPIO expanders"
1205 config GPIO_VIPERBOARD
1206 tristate "Viperboard GPIO a & b support"
1207 depends on MFD_VIPERBOARD
1209 Say yes here to access the GPIO signals of Nano River
1210 Technologies Viperboard. There are two GPIO chips on the
1211 board: gpioa and gpiob.
1212 See viperboard API specification and Nano
1213 River Tech's viperboard.h for detailed meaning
1214 of the module parameters.