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
13 config ARCH_WANT_OPTIONAL_GPIOLIB
16 Select this config option from the architecture Kconfig, if
17 it is possible to use gpiolib on the architecture, but let the
18 user decide whether to actually build it or not.
19 Select this instead of ARCH_REQUIRE_GPIOLIB, if your architecture does
20 not depend on GPIOs being available, but rather let the user
21 decide whether he needs it or not.
23 config ARCH_REQUIRE_GPIOLIB
27 Platforms select gpiolib if they use this infrastructure
28 for all their GPIOs, usually starting with ones integrated
30 Selecting this from the architecture code will cause the gpiolib
31 code to always get built in.
37 This enables GPIO support through the generic GPIO library.
38 You only need to enable this, if you also want to enable
39 one or more of the GPIO drivers below.
51 depends on OF || COMPILE_TEST
57 config GPIOLIB_IRQCHIP
62 bool "Debug GPIO calls"
63 depends on DEBUG_KERNEL
65 Say Y here to add some extra checks and diagnostics to GPIO calls.
66 These checks help ensure that GPIOs have been properly initialized
67 before they are used, and that sleeping calls are not made from
68 non-sleeping contexts. They can make bitbanged serial protocols
69 slower. The diagnostics help catch the type of setup errors
70 that are most common when setting up new platforms or boards.
73 bool "/sys/class/gpio/... (sysfs interface)"
76 Say Y here to add a sysfs interface for GPIOs.
78 This is mostly useful to work around omissions in a system's
79 kernel support. Those are common in custom and semicustom
80 hardware assembled using standard kernels with a minimum of
81 custom patches. In those cases, userspace code may import
82 a given GPIO from the kernel, if no kernel driver requested it.
84 Kernel drivers may also request that a particular GPIO be
85 exported to userspace; this can be useful when debugging.
90 # put drivers in the right section, in alphabetical order
92 # This symbol is selected by both I2C and SPI expanders
96 menu "Memory mapped GPIO drivers"
99 tristate "GPIO driver for 74xx-ICs with MMIO access"
103 Say yes here to support GPIO functionality for 74xx-compatible ICs
104 with MMIO access. Compatible models include:
105 1 bit: 741G125 (Input), 741G74 (Output)
106 2 bits: 742G125 (Input), 7474 (Output)
107 4 bits: 74125 (Input), 74175 (Output)
108 6 bits: 74365 (Input), 74174 (Output)
109 8 bits: 74244 (Input), 74273 (Output)
110 16 bits: 741624 (Input), 7416374 (Output)
113 tristate "Altera GPIO"
115 select GPIOLIB_IRQCHIP
117 Say Y or M here to build support for the Altera PIO device.
119 If driver is built as a module it will be called gpio-altera.
122 tristate "AMD Promontory GPIO support"
126 driver for GPIO functionality on Promontory IOHub
127 Require ACPI ASL code to enumerate as a platform device.
130 tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
132 depends on ATH79 || COMPILE_TEST
134 select GPIOLIB_IRQCHIP
136 Select this option to enable GPIO driver for
137 Atheros AR71XX/AR724X/AR913X SoC devices.
140 bool "Broadcom Kona GPIO"
141 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
143 Turn on GPIO support for Broadcom "Kona" chips.
146 tristate "BRCMSTB GPIO support"
147 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
148 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
150 select GPIOLIB_IRQCHIP
152 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
155 tristate "CLPS711X GPIO support"
156 depends on ARCH_CLPS711X || COMPILE_TEST
159 Say yes here to support GPIO on CLPS711X SoCs.
162 bool "TI Davinci/Keystone GPIO support"
163 default y if ARCH_DAVINCI
164 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
166 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
169 tristate "Synopsys DesignWare APB GPIO driver"
171 select GENERIC_IRQ_CHIP
173 Say Y or M here to build support for the Synopsys DesignWare APB
177 tristate "Emma Mobile GPIO"
178 depends on ARM && OF_GPIO
180 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
184 depends on ARCH_EP93XX
188 bool "Axis ETRAX FS General I/O"
189 depends on CRIS || COMPILE_TEST
192 select GPIOLIB_IRQCHIP
194 Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.
197 bool "GE FPGA based GPIO"
201 Support for common GPIO functionality provided on some GE Single Board
204 This driver provides basic support (configure as input or output, read
205 and write pin state) for GPIO implemented in a number of GE single
208 config GPIO_GENERIC_PLATFORM
209 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
212 Say yes here to support basic platform_device memory-mapped GPIO controllers.
215 tristate "Aeroflex Gaisler GRGPIO support"
220 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
221 VHDL IP core library.
224 tristate "Intel ICH GPIO"
225 depends on PCI && X86
229 Say yes here to support the GPIO functionality of a number of Intel
230 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
231 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
232 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
237 tristate "Intel IOP GPIO"
238 depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
240 Say yes here to support the GPIO functionality of a number of Intel
246 bool "Loongson-2/3 GPIO support"
247 depends on CPU_LOONGSON2 || CPU_LOONGSON3
249 driver for GPIO functionality on Loongson-2F/3A/3B processors.
252 bool "NXP LPC18XX/43XX GPIO support"
253 default y if ARCH_LPC18XX
254 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
256 Select this option to enable GPIO driver for
257 NXP LPC18XX/43XX devices.
259 config GPIO_LYNXPOINT
260 tristate "Intel Lynxpoint GPIO support"
261 depends on ACPI && X86
262 select GPIOLIB_IRQCHIP
264 driver for GPIO functionality on Intel Lynxpoint PCH chipset
265 Requires ACPI device enumeration code to set up a platform device.
268 bool "GPIO support for Fujitsu MB86S7x Platforms"
269 depends on ARCH_MB86S7X || COMPILE_TEST
271 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
274 tristate "MEN 16Z127 GPIO support"
278 Say yes here to support the MEN 16Z127 GPIO Controller
280 config GPIO_MM_LANTIQ
281 bool "Lantiq Memory mapped GPIOs"
282 depends on LANTIQ && SOC_XWAY
284 This enables support for memory mapped GPIOs on the External Bus Unit
285 (EBU) found on Lantiq SoCs. The gpios are output only as they are
286 created by attaching a 16bit latch to the bus.
289 bool "MOXART GPIO support"
290 depends on ARCH_MOXART || COMPILE_TEST
293 Select this option to enable GPIO driver for
294 MOXA ART SoC devices.
298 depends on PPC_MPC52xx
301 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
302 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
303 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
308 Say Y here if you're going to use hardware that connects to the
309 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
313 depends on PLAT_ORION
315 select GENERIC_IRQ_CHIP
321 select GENERIC_IRQ_CHIP
327 select GENERIC_IRQ_CHIP
330 tristate "Cavium OCTEON GPIO"
331 depends on GPIOLIB && CAVIUM_OCTEON_SOC
334 Say yes here to support the on-chip GPIO lines on the OCTEON
338 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
339 default y if ARCH_OMAP
341 select GENERIC_IRQ_CHIP
342 select GPIOLIB_IRQCHIP
344 Say yes here to enable GPIO support for TI OMAP SoCs.
347 bool "PrimeCell PL061 GPIO support"
350 select GPIOLIB_IRQCHIP
352 Say yes here to support the PrimeCell PL061 GPIO device
355 bool "PXA GPIO support"
356 depends on ARCH_PXA || ARCH_MMP
358 Say yes here to support the PXA GPIO device
361 tristate "Renesas R-Car GPIO"
362 depends on ARCH_RENESAS || COMPILE_TEST
363 select GPIOLIB_IRQCHIP
365 Say yes here to support GPIO on Renesas R-Car SoCs.
367 config GPIO_SPEAR_SPICS
368 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
369 depends on PLAT_SPEAR
370 select GENERIC_IRQ_CHIP
372 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
375 bool "STA2x11/ConneXt GPIO support"
376 depends on MFD_STA2X11
377 select GENERIC_IRQ_CHIP
379 Say yes here to support the STA2x11/ConneXt GPIO device.
380 The GPIO module has 128 GPIO pins with alternate functions.
383 bool "XWAY STP GPIOs"
386 This enables support for the Serial To Parallel (STP) unit found on
387 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
388 that can be up to 24 bit. This peripheral is aimed at driving leds.
389 Some of the gpios/leds can be auto updated by the soc with dsl and
393 tristate "GPIO based on SYSCON"
394 depends on MFD_SYSCON && OF
396 Say yes here to support GPIO functionality though SYSCON driver.
400 select GENERIC_IRQ_CHIP
406 depends on ARCH_TEGRA || COMPILE_TEST
409 tristate "TS-4800 DIO blocks and compatibles"
411 depends on SOC_IMX51 || COMPILE_TEST
414 This driver support TS-4800 FPGA GPIO controllers.
417 bool "Toumaz Xenif TZ1090 GPIO support"
418 depends on SOC_TZ1090
419 select GENERIC_IRQ_CHIP
422 Say yes here to support Toumaz Xenif TZ1090 GPIOs.
424 config GPIO_TZ1090_PDC
425 bool "Toumaz Xenif TZ1090 PDC GPIO support"
426 depends on SOC_TZ1090
429 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
433 depends on ARCH_MXC && SOC_VF610
434 select GPIOLIB_IRQCHIP
436 Say yes here to support Vybrid vf610 GPIOs.
439 tristate "NEC VR4100 series General-purpose I/O Uint support"
440 depends on CPU_VR41XX
442 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
445 tristate "VIA VX855/VX875 GPIO"
450 Support access to the VX855/VX875 GPIO lines through the gpio library.
452 This driver provides common support for accessing the device,
453 additional drivers must be enabled in order to use the
454 functionality of the device.
457 bool "APM X-Gene GPIO controller support"
458 depends on ARM64 && OF_GPIO
460 This driver is to support the GPIO block within the APM X-Gene SoC
461 platform's generic flash controller. The GPIO pins are muxed with
462 the generic flash controller's address and data pins. Say yes
463 here to enable the GFC GPIO functionality.
466 tristate "APM X-Gene GPIO standby controller support"
467 depends on ARCH_XGENE && OF_GPIO
469 select GPIOLIB_IRQCHIP
471 This driver supports the GPIO block within the APM X-Gene
472 Standby Domain. Say yes here to enable the GPIO functionality.
475 tristate "Xilinx GPIO support"
478 Say yes here to support the Xilinx FPGA GPIO device
481 tristate "Netlogic XLP GPIO support"
482 depends on OF_GPIO && (CPU_XLP || ARCH_VULCAN || COMPILE_TEST)
483 select GPIOLIB_IRQCHIP
485 This driver provides support for GPIO interface on Netlogic XLP MIPS64
486 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
492 bool "Xtensa GPIO32 support"
494 depends on HAVE_XTENSA_GPIO32
497 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
498 and EXPSTATE (output) ports
501 bool "LSI ZEVIO SoC memory mapped GPIOs"
502 depends on ARM && OF_GPIO
504 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
507 tristate "Xilinx Zynq GPIO support"
508 depends on ARCH_ZYNQ || ARCH_ZYNQMP
509 select GPIOLIB_IRQCHIP
511 Say yes here to support Xilinx Zynq GPIO controller.
514 bool "ZTE ZX GPIO support"
515 select GPIOLIB_IRQCHIP
517 Say yes here to support the GPIO device on ZTE ZX SoCs.
519 config GPIO_LOONGSON1
520 tristate "Loongson1 GPIO support"
521 depends on MACH_LOONGSON32
524 Say Y or M here to support GPIO on Loongson1 SoCs.
528 menu "Port-mapped I/O GPIO drivers"
529 depends on X86 # Unconditional I/O space access
531 config GPIO_104_DIO_48E
532 tristate "ACCES 104-DIO-48E GPIO support"
533 select GPIOLIB_IRQCHIP
535 Enables GPIO support for the ACCES 104-DIO-48E family. The base port
536 address for the device may be configured via the dio_48e_base module
537 parameter. The interrupt line number for the device may be configured
538 via the dio_48e_irq module parameter.
540 config GPIO_104_IDIO_16
541 tristate "ACCES 104-IDIO-16 GPIO support"
542 select GPIOLIB_IRQCHIP
544 Enables GPIO support for the ACCES 104-IDIO-16 family. The base port
545 address for the device may be set via the idio_16_base module
546 parameter. The interrupt line number for the device may be set via the
547 idio_16_irq module parameter.
549 config GPIO_104_IDI_48
550 tristate "ACCES 104-IDI-48 GPIO support"
551 select GPIOLIB_IRQCHIP
553 Enables GPIO support for the ACCES 104-IDI-48 family. The base port
554 address for the device may be configured via the idi_48_base module
555 parameter. The interrupt line number for the device may be configured
556 via the idi_48_irq module parameter.
559 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
561 This option enables support for GPIOs found on Fintek Super-I/O
562 chips F71869, F71869A, F71882FG, F71889F and F81866.
564 To compile this driver as a module, choose M here: the module will
565 be called f7188x-gpio.
568 tristate "IT87xx GPIO support"
570 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
572 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
573 supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
575 To compile this driver as a module, choose M here: the module will
579 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
584 Say yes here to support GPIO interface on Intel Poulsbo SCH,
585 Intel Tunnel Creek processor, Intel Centerton processor or
586 Intel Quark X1000 SoC.
588 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
589 powered by the core power rail and are turned off during sleep
590 modes (S3 and higher). The remaining four GPIOs are powered by
591 the Intel SCH suspend power supply. These GPIOs remain
592 active during S3. The suspend powered GPIOs can be used to wake the
593 system from the Suspend-to-RAM state.
595 The Intel Tunnel Creek processor has 5 GPIOs powered by the
596 core power rail and 9 from suspend power supply.
598 The Intel Centerton processor has a total of 30 GPIO pins.
599 Twenty-one are powered by the core power rail and 9 from the
600 suspend power supply.
602 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
603 power well and 6 from the suspend power well.
606 tristate "SMSC SCH311x SuperI/O GPIO"
608 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
609 SCH3116 "Super I/O" chipsets.
611 To compile this driver as a module, choose M here: the module will
612 be called gpio-sch311x.
615 tristate "TS-5500 DIO blocks and compatibles"
616 depends on TS5500 || COMPILE_TEST
618 This driver supports Digital I/O exposed by pin blocks found on some
619 Technologic Systems platforms. It includes, but is not limited to, 3
620 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
624 tristate "WinSystems WS16C48 GPIO support"
625 select GPIOLIB_IRQCHIP
627 Enables GPIO support for the WinSystems WS16C48. The base port address
628 for the device may be configured via the ws16c48_base module
629 parameter. The interrupt line number for the device may be configured
630 via the ws16c48_irq module parameter.
634 menu "I2C GPIO expanders"
638 tristate "ADP5588 I2C GPIO expander"
640 This option enables support for 18 GPIOs found
641 on Analog Devices ADP5588 GPIO Expanders.
643 config GPIO_ADP5588_IRQ
644 bool "Interrupt controller support for ADP5588"
645 depends on GPIO_ADP5588=y
647 Say yes here to enable the adp5588 to be used as an interrupt
648 controller. It requires the driver to be built in the kernel.
651 tristate "Avionic Design N-bit GPIO expander"
653 select GPIOLIB_IRQCHIP
655 This option enables support for N GPIOs found on Avionic Design
656 I2C GPIO expanders. The register space will be extended by powers
657 of two, so the controller will need to accommodate for that. For
658 example: if a controller provides 48 pins, 6 registers will be
659 enough to represent all pins, but the driver will assume a
660 register layout for 64 pins (8 registers).
663 tristate "Maxim MAX7300 GPIO expander"
666 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
669 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
671 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
672 Port Expanders. Each IO port on these chips has a fixed role of
673 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
674 Input and Output (designed by 'P'). The combinations are listed
677 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
678 max7322 (4I4O), max7323 (4P4O)
680 16 bits: max7324 (8I8O), max7325 (8P8O),
681 max7326 (4I12O), max7327 (4P12O)
683 Board setup code must specify the model to use, and the start
684 number for these GPIOs.
686 config GPIO_MAX732X_IRQ
687 bool "Interrupt controller support for MAX732x"
688 depends on GPIO_MAX732X=y
689 select GPIOLIB_IRQCHIP
691 Say yes here to enable the max732x to be used as an interrupt
692 controller. It requires the driver to be built in the kernel.
694 config GPIO_MC9S08DZ60
695 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
696 depends on I2C=y && MACH_MX35_3DS
698 Select this to enable the MC9S08DZ60 GPIO driver
701 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
703 Say yes here to provide access to several register-oriented
704 SMBus I/O expanders, made mostly by NXP or TI. Compatible
707 4 bits: pca9536, pca9537
709 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
710 pca9556, pca9557, pca9574, tca6408, xra1202
712 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
717 40 bits: pca9505, pca9698
719 config GPIO_PCA953X_IRQ
720 bool "Interrupt controller support for PCA953x"
721 depends on GPIO_PCA953X=y
722 select GPIOLIB_IRQCHIP
724 Say yes here to enable the pca953x to be used as an interrupt
725 controller. It requires the driver to be built in the kernel.
728 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
729 select GPIOLIB_IRQCHIP
732 Say yes here to provide access to most "quasi-bidirectional" I2C
733 GPIO expanders used for additional digital outputs or inputs.
734 Most of these parts are from NXP, though TI is a second source for
735 some of them. Compatible models include:
737 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
738 pca9670, pca9672, pca9674, pca9674a,
741 16 bits: pcf8575, pcf8575c, pca8575,
742 pca9671, pca9673, pca9675
744 Your board setup code will need to declare the expanders in
745 use, and assign numbers to the GPIOs they expose. Those GPIOs
746 can then be used from drivers and other kernel code, just like
747 other GPIOs, but only accessible from task contexts.
749 This driver provides an in-kernel interface to those GPIOs using
750 platform-neutral GPIO calls.
753 bool "Semtech SX150x I2C GPIO expander"
755 select GPIOLIB_IRQCHIP
758 Say yes here to provide support for Semtech SX150-series I2C
759 GPIO expanders. Compatible models include:
765 tristate "TPIC2810 8-Bit I2C GPO expander"
767 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
769 To compile this driver as a module, choose M here: the module will
770 be called gpio-tpic2810.
774 menu "MFD GPIO expanders"
777 tristate "GPIO Support for ADP5520 PMIC"
778 depends on PMIC_ADP5520
780 This option enables support for on-chip GPIO found
781 on Analog Devices ADP5520 PMICs.
784 tristate "Wolfson Microelectronics Arizona class devices"
785 depends on MFD_ARIZONA
787 Support for GPIOs on Wolfson Arizona class devices.
789 config GPIO_CRYSTAL_COVE
790 tristate "GPIO support for Crystal Cove PMIC"
791 depends on INTEL_SOC_PMIC
792 select GPIOLIB_IRQCHIP
794 Support for GPIO pins on Crystal Cove PMIC.
796 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
799 This driver can also be built as a module. If so, the module will be
800 called gpio-crystalcove.
803 tristate "AMD CS5535/CS5536 GPIO support"
804 depends on MFD_CS5535
806 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
807 can be used for quite a number of things. The CS5535/6 is found on
808 AMD Geode and Lemote Yeeloong devices.
813 tristate "Dialog DA9052 GPIO"
814 depends on PMIC_DA9052
816 Say yes here to enable the GPIO driver for the DA9052 chip.
819 tristate "Dialog Semiconductor DA9055 GPIO"
820 depends on MFD_DA9055
822 Say yes here to enable the GPIO driver for the DA9055 chip.
824 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
825 be controller by this driver.
827 If driver is built as a module it will be called gpio-da9055.
830 tristate "Diolan DLN2 GPIO support"
832 select GPIOLIB_IRQCHIP
835 Select this option to enable GPIO driver for the Diolan DLN2
838 This driver can also be built as a module. If so, the module
839 will be called gpio-dln2.
842 tristate "Janz VMOD-TTL Digital IO Module"
843 depends on MFD_JANZ_CMODIO
845 This enables support for the Janz VMOD-TTL Digital IO module.
846 This driver provides support for driving the pins in output
847 mode only. Input mode is not supported.
850 tristate "Kontron ETX / COMexpress GPIO"
851 depends on MFD_KEMPLD
853 This enables support for the PLD GPIO interface on some Kontron ETX
854 and COMexpress (ETXexpress) modules.
856 This driver can also be built as a module. If so, the module will be
860 tristate "TI/National Semiconductor LP3943 GPIO expander"
861 depends on MFD_LP3943
863 GPIO driver for LP3943 MFD.
864 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
865 Open drain outputs are required for this usage.
868 bool "Intel MSIC mixed signal gpio support"
869 depends on MFD_INTEL_MSIC
871 Enable support for GPIO on intel MSIC controllers found in
875 bool "TI PALMAS series PMICs GPIO"
876 depends on MFD_PALMAS
878 Select this option to enable GPIO driver for the TI PALMAS
882 bool "RICOH RC5T583 GPIO"
883 depends on MFD_RC5T583
885 Select this option to enable GPIO driver for the Ricoh RC5T583
887 This driver provides the support for driving/reading the gpio pins
888 of RC5T583 device through standard gpio library.
894 select GPIOLIB_IRQCHIP
896 This enables support for the GPIOs found on the STMPE I/O
901 depends on MFD_TC3589X
903 select GPIOLIB_IRQCHIP
905 This enables support for the GPIOs found on the TC3589X
908 config GPIO_TIMBERDALE
909 bool "Support for timberdale GPIO IP"
910 depends on MFD_TIMBERDALE
912 Add support for the GPIO IP in the timberdale FPGA.
915 tristate "TI TPS65086 GPO"
916 depends on MFD_TPS65086
918 This driver supports the GPO on TI TPS65086x PMICs.
921 tristate "TPS65218 GPIO"
922 depends on MFD_TPS65218
924 Select this option to enable GPIO driver for the TPS65218
929 depends on MFD_TPS6586X
931 Select this option to enable GPIO driver for the TPS6586X
936 depends on MFD_TPS65910
938 Select this option to enable GPIO driver for the TPS65910
942 tristate "TI TPS65912 GPIO"
943 depends on MFD_TPS65912
945 This driver supports TPS65912 gpio chip
948 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
949 depends on TWL4030_CORE
951 Say yes here to access the GPIO signals of various multi-function
952 power management chips from Texas Instruments.
955 tristate "TWL6040 GPO"
956 depends on TWL6040_CORE
958 Say yes here to access the GPO signals of twl6040
959 audio chip from Texas Instruments.
962 tristate "Philips UCB1400 GPIO"
963 depends on UCB1400_CORE
965 This enables support for the Philips UCB1400 GPIO pins.
966 The UCB1400 is an AC97 audio codec.
969 tristate "WM831x GPIOs"
970 depends on MFD_WM831X
972 Say yes here to access the GPIO signals of WM831x power management
973 chips from Wolfson Microelectronics.
976 tristate "WM8350 GPIOs"
977 depends on MFD_WM8350
979 Say yes here to access the GPIO signals of WM8350 power management
980 chips from Wolfson Microelectronics.
983 tristate "WM8994 GPIOs"
984 depends on MFD_WM8994
986 Say yes here to access the GPIO signals of WM8994 audio hub
987 CODECs from Wolfson Microelectronics.
991 menu "PCI GPIO expanders"
995 tristate "AMD 8111 GPIO driver"
997 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
999 Note, that usually system firmware/ACPI handles GPIO pins on their
1000 own and users might easily break their systems with uncarefull usage
1006 tristate "BT8XX GPIO abuser"
1007 depends on VIDEO_BT848=n
1009 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1010 as a cheap PCI GPIO card.
1012 This chip can be found on Miro, Hauppauge and STB TV-cards.
1014 The card needs to be physically altered for using it as a
1015 GPIO card. For more information on how to build a GPIO card
1016 from a BT8xx TV card, see the documentation file at
1017 Documentation/bt8xxgpio.txt
1021 config GPIO_INTEL_MID
1022 bool "Intel Mid GPIO support"
1024 select GPIOLIB_IRQCHIP
1026 Say Y here to support Intel Mid GPIO.
1029 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1030 select GENERIC_IRQ_CHIP
1032 ML7213 is companion chip for Intel Atom E6xx series.
1033 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1034 Hub) which is for IVI(In-Vehicle Infotainment) use.
1035 This driver can access the IOH's GPIO device.
1038 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1039 depends on X86_32 || MIPS || COMPILE_TEST
1040 select GENERIC_IRQ_CHIP
1042 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1043 which is an IOH(Input/Output Hub) for x86 embedded processor.
1044 This driver can access PCH GPIO device.
1046 This driver also can be used for LAPIS Semiconductor IOH(Input/
1047 Output Hub), ML7223 and ML7831.
1048 ML7223 IOH is for MP(Media Phone) use.
1049 ML7831 IOH is for general purpose use.
1050 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1051 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1054 tristate "RDC R-321x GPIO support"
1058 Support for the RDC R321x SoC GPIOs over southbridge
1059 PCI configuration space.
1061 config GPIO_SODAVILLE
1062 bool "Intel Sodaville GPIO support"
1063 depends on X86 && OF
1065 select GENERIC_IRQ_CHIP
1067 Say Y here to support Intel Sodaville GPIO.
1071 menu "SPI GPIO expanders"
1072 depends on SPI_MASTER
1075 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1078 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1079 shift registers. This driver can be used to provide access
1080 to more gpio outputs.
1083 tristate "Maxim MAX7301 GPIO expander"
1086 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1089 tristate "Freescale MC33880 high-side/low-side switch"
1091 SPI driver for Freescale MC33880 high-side/low-side switch.
1092 This provides GPIO interface supporting inputs and outputs.
1095 tristate "Generic parallel-in/serial-out shift register"
1097 GPIO driver for SPI compatible parallel-in/serial-out shift
1098 registers. These are input only devices.
1102 menu "SPI or I2C GPIO expanders"
1103 depends on (SPI_MASTER && !I2C) || I2C
1105 config GPIO_MCP23S08
1106 tristate "Microchip MCP23xxx I/O expander"
1107 select GPIOLIB_IRQCHIP
1109 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
1111 This provides a GPIO interface supporting inputs and outputs.
1112 The I2C versions of the chips can be used as interrupt-controller.
1116 menu "USB GPIO expanders"
1119 config GPIO_VIPERBOARD
1120 tristate "Viperboard GPIO a & b support"
1121 depends on MFD_VIPERBOARD
1123 Say yes here to access the GPIO signals of Nano River
1124 Technologies Viperboard. There are two GPIO chips on the
1125 board: gpioa and gpiob.
1126 See viperboard API specification and Nano
1127 River Tech's viperboard.h for detailed meaning
1128 of the module parameters.