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.
38 This enables GPIO support through the generic GPIO library.
39 You only need to enable this, if you also want to enable
40 one or more of the GPIO drivers below.
59 config GPIOLIB_IRQCHIP
64 bool "Debug GPIO calls"
65 depends on DEBUG_KERNEL
67 Say Y here to add some extra checks and diagnostics to GPIO calls.
68 These checks help ensure that GPIOs have been properly initialized
69 before they are used, and that sleeping calls are not made from
70 non-sleeping contexts. They can make bitbanged serial protocols
71 slower. The diagnostics help catch the type of setup errors
72 that are most common when setting up new platforms or boards.
75 bool "/sys/class/gpio/... (sysfs interface)"
78 Say Y here to add a sysfs interface for GPIOs.
80 This is mostly useful to work around omissions in a system's
81 kernel support. Those are common in custom and semicustom
82 hardware assembled using standard kernels with a minimum of
83 custom patches. In those cases, userspace code may import
84 a given GPIO from the kernel, if no kernel driver requested it.
86 Kernel drivers may also request that a particular GPIO be
87 exported to userspace; this can be useful when debugging.
92 # put drivers in the right section, in alphabetical order
94 # This symbol is selected by both I2C and SPI expanders
98 menu "Memory mapped GPIO drivers"
100 config GPIO_74XX_MMIO
101 tristate "GPIO driver for 74xx-ICs with MMIO access"
105 Say yes here to support GPIO functionality for 74xx-compatible ICs
106 with MMIO access. Compatible models include:
107 1 bit: 741G125 (Input), 741G74 (Output)
108 2 bits: 742G125 (Input), 7474 (Output)
109 4 bits: 74125 (Input), 74175 (Output)
110 6 bits: 74365 (Input), 74174 (Output)
111 8 bits: 74244 (Input), 74273 (Output)
112 16 bits: 741624 (Input), 7416374 (Output)
115 tristate "Altera GPIO"
117 select GPIOLIB_IRQCHIP
119 Say Y or M here to build support for the Altera PIO device.
121 If driver is built as a module it will be called gpio-altera.
124 tristate "AMD Promontory GPIO support"
128 driver for GPIO functionality on Promontory IOHub
129 Require ACPI ASL code to enumerate as a platform device.
132 tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
134 depends on ATH79 || COMPILE_TEST
136 select GPIOLIB_IRQCHIP
138 Select this option to enable GPIO driver for
139 Atheros AR71XX/AR724X/AR913X SoC devices.
142 bool "Broadcom Kona GPIO"
143 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
145 Turn on GPIO support for Broadcom "Kona" chips.
148 tristate "BRCMSTB GPIO support"
149 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
150 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
152 select GPIOLIB_IRQCHIP
154 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
157 tristate "CLPS711X GPIO support"
158 depends on ARCH_CLPS711X || COMPILE_TEST
161 Say yes here to support GPIO on CLPS711X SoCs.
164 bool "TI Davinci/Keystone GPIO support"
165 default y if ARCH_DAVINCI
166 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
168 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
171 tristate "Synopsys DesignWare APB GPIO driver"
173 select GENERIC_IRQ_CHIP
175 Say Y or M here to build support for the Synopsys DesignWare APB
179 tristate "Emma Mobile GPIO"
180 depends on ARM && OF_GPIO
182 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
186 depends on ARCH_EP93XX
190 bool "Axis ETRAX FS General I/O"
191 depends on CRIS || COMPILE_TEST
194 select GPIOLIB_IRQCHIP
196 Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.
199 bool "GE FPGA based GPIO"
203 Support for common GPIO functionality provided on some GE Single Board
206 This driver provides basic support (configure as input or output, read
207 and write pin state) for GPIO implemented in a number of GE single
210 config GPIO_GENERIC_PLATFORM
211 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
214 Say yes here to support basic platform_device memory-mapped GPIO controllers.
217 tristate "Aeroflex Gaisler GRGPIO support"
222 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
223 VHDL IP core library.
226 tristate "Intel ICH GPIO"
227 depends on PCI && X86
231 Say yes here to support the GPIO functionality of a number of Intel
232 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
233 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
234 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
239 tristate "Intel IOP GPIO"
240 depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
242 Say yes here to support the GPIO functionality of a number of Intel
248 bool "Loongson-2/3 GPIO support"
249 depends on CPU_LOONGSON2 || CPU_LOONGSON3
251 driver for GPIO functionality on Loongson-2F/3A/3B processors.
254 tristate "NXP LPC18XX/43XX GPIO support"
255 default y if ARCH_LPC18XX
256 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
258 Select this option to enable GPIO driver for
259 NXP LPC18XX/43XX devices.
261 config GPIO_LYNXPOINT
262 tristate "Intel Lynxpoint GPIO support"
263 depends on ACPI && X86
264 select GPIOLIB_IRQCHIP
266 driver for GPIO functionality on Intel Lynxpoint PCH chipset
267 Requires ACPI device enumeration code to set up a platform device.
270 bool "GPIO support for Fujitsu MB86S7x Platforms"
271 depends on ARCH_MB86S7X || COMPILE_TEST
273 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
276 tristate "MEN 16Z127 GPIO support"
280 Say yes here to support the MEN 16Z127 GPIO Controller
282 config GPIO_MM_LANTIQ
283 bool "Lantiq Memory mapped GPIOs"
284 depends on LANTIQ && SOC_XWAY
286 This enables support for memory mapped GPIOs on the External Bus Unit
287 (EBU) found on Lantiq SoCs. The gpios are output only as they are
288 created by attaching a 16bit latch to the bus.
291 bool "MOXART GPIO support"
292 depends on ARCH_MOXART || COMPILE_TEST
295 Select this option to enable GPIO driver for
296 MOXA ART SoC devices.
300 depends on PPC_MPC52xx
303 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
304 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
305 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
310 Say Y here if you're going to use hardware that connects to the
311 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
315 depends on PLAT_ORION
317 select GENERIC_IRQ_CHIP
323 select GENERIC_IRQ_CHIP
329 select GENERIC_IRQ_CHIP
332 tristate "Cavium OCTEON GPIO"
333 depends on GPIOLIB && CAVIUM_OCTEON_SOC
336 Say yes here to support the on-chip GPIO lines on the OCTEON
340 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
341 default y if ARCH_OMAP
343 select GENERIC_IRQ_CHIP
344 select GPIOLIB_IRQCHIP
346 Say yes here to enable GPIO support for TI OMAP SoCs.
349 bool "PrimeCell PL061 GPIO support"
352 select GPIOLIB_IRQCHIP
354 Say yes here to support the PrimeCell PL061 GPIO device
357 bool "PXA GPIO support"
358 depends on ARCH_PXA || ARCH_MMP
360 Say yes here to support the PXA GPIO device
363 tristate "Renesas R-Car GPIO"
364 depends on ARCH_RENESAS || COMPILE_TEST
365 select GPIOLIB_IRQCHIP
367 Say yes here to support GPIO on Renesas R-Car SoCs.
369 config GPIO_SPEAR_SPICS
370 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
371 depends on PLAT_SPEAR
372 select GENERIC_IRQ_CHIP
374 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
377 bool "STA2x11/ConneXt GPIO support"
378 depends on MFD_STA2X11
379 select GENERIC_IRQ_CHIP
381 Say yes here to support the STA2x11/ConneXt GPIO device.
382 The GPIO module has 128 GPIO pins with alternate functions.
385 bool "XWAY STP GPIOs"
388 This enables support for the Serial To Parallel (STP) unit found on
389 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
390 that can be up to 24 bit. This peripheral is aimed at driving leds.
391 Some of the gpios/leds can be auto updated by the soc with dsl and
395 tristate "GPIO based on SYSCON"
396 depends on MFD_SYSCON && OF
398 Say yes here to support GPIO functionality though SYSCON driver.
402 select GENERIC_IRQ_CHIP
406 bool "NVIDIA Tegra GPIO support"
408 depends on ARCH_TEGRA || COMPILE_TEST
411 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
414 tristate "TS-4800 DIO blocks and compatibles"
416 depends on SOC_IMX51 || COMPILE_TEST
419 This driver support TS-4800 FPGA GPIO controllers.
422 bool "Toumaz Xenif TZ1090 GPIO support"
423 depends on SOC_TZ1090
424 select GENERIC_IRQ_CHIP
427 Say yes here to support Toumaz Xenif TZ1090 GPIOs.
429 config GPIO_TZ1090_PDC
430 bool "Toumaz Xenif TZ1090 PDC GPIO support"
431 depends on SOC_TZ1090
434 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
438 depends on ARCH_MXC && SOC_VF610
439 select GPIOLIB_IRQCHIP
441 Say yes here to support Vybrid vf610 GPIOs.
444 tristate "NEC VR4100 series General-purpose I/O Uint support"
445 depends on CPU_VR41XX
447 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
450 tristate "VIA VX855/VX875 GPIO"
455 Support access to the VX855/VX875 GPIO lines through the gpio library.
457 This driver provides common support for accessing the device,
458 additional drivers must be enabled in order to use the
459 functionality of the device.
462 bool "APM X-Gene GPIO controller support"
463 depends on ARM64 && OF_GPIO
465 This driver is to support the GPIO block within the APM X-Gene SoC
466 platform's generic flash controller. The GPIO pins are muxed with
467 the generic flash controller's address and data pins. Say yes
468 here to enable the GFC GPIO functionality.
471 tristate "APM X-Gene GPIO standby controller support"
472 depends on ARCH_XGENE && OF_GPIO
474 select GPIOLIB_IRQCHIP
476 This driver supports the GPIO block within the APM X-Gene
477 Standby Domain. Say yes here to enable the GPIO functionality.
480 tristate "Xilinx GPIO support"
483 Say yes here to support the Xilinx FPGA GPIO device
486 tristate "Netlogic XLP GPIO support"
487 depends on OF_GPIO && (CPU_XLP || ARCH_VULCAN || COMPILE_TEST)
488 select GPIOLIB_IRQCHIP
490 This driver provides support for GPIO interface on Netlogic XLP MIPS64
491 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
497 bool "Xtensa GPIO32 support"
499 depends on HAVE_XTENSA_GPIO32
502 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
503 and EXPSTATE (output) ports
506 bool "LSI ZEVIO SoC memory mapped GPIOs"
507 depends on ARM && OF_GPIO
509 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
512 tristate "Xilinx Zynq GPIO support"
513 depends on ARCH_ZYNQ || ARCH_ZYNQMP
514 select GPIOLIB_IRQCHIP
516 Say yes here to support Xilinx Zynq GPIO controller.
519 bool "ZTE ZX GPIO support"
520 select GPIOLIB_IRQCHIP
522 Say yes here to support the GPIO device on ZTE ZX SoCs.
524 config GPIO_LOONGSON1
525 tristate "Loongson1 GPIO support"
526 depends on MACH_LOONGSON32
529 Say Y or M here to support GPIO on Loongson1 SoCs.
533 menu "Port-mapped I/O GPIO drivers"
534 depends on X86 # Unconditional I/O space access
536 config GPIO_104_DIO_48E
537 tristate "ACCES 104-DIO-48E GPIO support"
538 depends on ISA_BUS_API
539 select GPIOLIB_IRQCHIP
541 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
542 104-DIO-24E). The base port addresses for the devices may be
543 configured via the base module parameter. The interrupt line numbers
544 for the devices may be configured via the irq module parameter.
546 config GPIO_104_IDIO_16
547 tristate "ACCES 104-IDIO-16 GPIO support"
548 depends on ISA_BUS_API
549 select GPIOLIB_IRQCHIP
551 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
552 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
553 base port addresses for the devices may be configured via the base
554 module parameter. The interrupt line numbers for the devices may be
555 configured via the irq module parameter.
557 config GPIO_104_IDI_48
558 tristate "ACCES 104-IDI-48 GPIO support"
559 depends on ISA_BUS_API
560 select GPIOLIB_IRQCHIP
562 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
563 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
564 the devices may be configured via the base module parameter. The
565 interrupt line numbers for the devices may be configured via the irq
569 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
571 This option enables support for GPIOs found on Fintek Super-I/O
572 chips F71869, F71869A, F71882FG, F71889F and F81866.
574 To compile this driver as a module, choose M here: the module will
575 be called f7188x-gpio.
578 tristate "IT87xx GPIO support"
580 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
582 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
583 supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
585 To compile this driver as a module, choose M here: the module will
589 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
594 Say yes here to support GPIO interface on Intel Poulsbo SCH,
595 Intel Tunnel Creek processor, Intel Centerton processor or
596 Intel Quark X1000 SoC.
598 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
599 powered by the core power rail and are turned off during sleep
600 modes (S3 and higher). The remaining four GPIOs are powered by
601 the Intel SCH suspend power supply. These GPIOs remain
602 active during S3. The suspend powered GPIOs can be used to wake the
603 system from the Suspend-to-RAM state.
605 The Intel Tunnel Creek processor has 5 GPIOs powered by the
606 core power rail and 9 from suspend power supply.
608 The Intel Centerton processor has a total of 30 GPIO pins.
609 Twenty-one are powered by the core power rail and 9 from the
610 suspend power supply.
612 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
613 power well and 6 from the suspend power well.
616 tristate "SMSC SCH311x SuperI/O GPIO"
618 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
619 SCH3116 "Super I/O" chipsets.
621 To compile this driver as a module, choose M here: the module will
622 be called gpio-sch311x.
625 tristate "TS-5500 DIO blocks and compatibles"
626 depends on TS5500 || COMPILE_TEST
628 This driver supports Digital I/O exposed by pin blocks found on some
629 Technologic Systems platforms. It includes, but is not limited to, 3
630 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
634 tristate "WinSystems WS16C48 GPIO support"
635 depends on ISA_BUS_API
636 select GPIOLIB_IRQCHIP
638 Enables GPIO support for the WinSystems WS16C48. The base port
639 addresses for the devices may be configured via the base module
640 parameter. The interrupt line numbers for the devices may be
641 configured via the irq module parameter.
645 menu "I2C GPIO expanders"
649 tristate "ADP5588 I2C GPIO expander"
651 This option enables support for 18 GPIOs found
652 on Analog Devices ADP5588 GPIO Expanders.
654 config GPIO_ADP5588_IRQ
655 bool "Interrupt controller support for ADP5588"
656 depends on GPIO_ADP5588=y
658 Say yes here to enable the adp5588 to be used as an interrupt
659 controller. It requires the driver to be built in the kernel.
662 tristate "Avionic Design N-bit GPIO expander"
664 select GPIOLIB_IRQCHIP
666 This option enables support for N GPIOs found on Avionic Design
667 I2C GPIO expanders. The register space will be extended by powers
668 of two, so the controller will need to accommodate for that. For
669 example: if a controller provides 48 pins, 6 registers will be
670 enough to represent all pins, but the driver will assume a
671 register layout for 64 pins (8 registers).
674 tristate "Maxim MAX7300 GPIO expander"
677 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
680 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
682 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
683 Port Expanders. Each IO port on these chips has a fixed role of
684 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
685 Input and Output (designed by 'P'). The combinations are listed
688 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
689 max7322 (4I4O), max7323 (4P4O)
691 16 bits: max7324 (8I8O), max7325 (8P8O),
692 max7326 (4I12O), max7327 (4P12O)
694 Board setup code must specify the model to use, and the start
695 number for these GPIOs.
697 config GPIO_MAX732X_IRQ
698 bool "Interrupt controller support for MAX732x"
699 depends on GPIO_MAX732X=y
700 select GPIOLIB_IRQCHIP
702 Say yes here to enable the max732x to be used as an interrupt
703 controller. It requires the driver to be built in the kernel.
705 config GPIO_MC9S08DZ60
706 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
707 depends on I2C=y && MACH_MX35_3DS
709 Select this to enable the MC9S08DZ60 GPIO driver
712 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
714 Say yes here to provide access to several register-oriented
715 SMBus I/O expanders, made mostly by NXP or TI. Compatible
718 4 bits: pca9536, pca9537
720 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
721 pca9556, pca9557, pca9574, tca6408, xra1202
723 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
728 40 bits: pca9505, pca9698
730 config GPIO_PCA953X_IRQ
731 bool "Interrupt controller support for PCA953x"
732 depends on GPIO_PCA953X=y
733 select GPIOLIB_IRQCHIP
735 Say yes here to enable the pca953x to be used as an interrupt
736 controller. It requires the driver to be built in the kernel.
739 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
740 select GPIOLIB_IRQCHIP
743 Say yes here to provide access to most "quasi-bidirectional" I2C
744 GPIO expanders used for additional digital outputs or inputs.
745 Most of these parts are from NXP, though TI is a second source for
746 some of them. Compatible models include:
748 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
749 pca9670, pca9672, pca9674, pca9674a,
752 16 bits: pcf8575, pcf8575c, pca8575,
753 pca9671, pca9673, pca9675
755 Your board setup code will need to declare the expanders in
756 use, and assign numbers to the GPIOs they expose. Those GPIOs
757 can then be used from drivers and other kernel code, just like
758 other GPIOs, but only accessible from task contexts.
760 This driver provides an in-kernel interface to those GPIOs using
761 platform-neutral GPIO calls.
764 bool "Semtech SX150x I2C GPIO expander"
766 select GPIOLIB_IRQCHIP
769 Say yes here to provide support for Semtech SX150-series I2C
770 GPIO expanders. Compatible models include:
776 tristate "TPIC2810 8-Bit I2C GPO expander"
778 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
780 To compile this driver as a module, choose M here: the module will
781 be called gpio-tpic2810.
785 menu "MFD GPIO expanders"
788 tristate "GPIO Support for ADP5520 PMIC"
789 depends on PMIC_ADP5520
791 This option enables support for on-chip GPIO found
792 on Analog Devices ADP5520 PMICs.
795 tristate "Wolfson Microelectronics Arizona class devices"
796 depends on MFD_ARIZONA
798 Support for GPIOs on Wolfson Arizona class devices.
800 config GPIO_CRYSTAL_COVE
801 tristate "GPIO support for Crystal Cove PMIC"
802 depends on INTEL_SOC_PMIC
803 select GPIOLIB_IRQCHIP
805 Support for GPIO pins on Crystal Cove PMIC.
807 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
810 This driver can also be built as a module. If so, the module will be
811 called gpio-crystalcove.
814 tristate "AMD CS5535/CS5536 GPIO support"
815 depends on MFD_CS5535
817 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
818 can be used for quite a number of things. The CS5535/6 is found on
819 AMD Geode and Lemote Yeeloong devices.
824 tristate "Dialog DA9052 GPIO"
825 depends on PMIC_DA9052
827 Say yes here to enable the GPIO driver for the DA9052 chip.
830 tristate "Dialog Semiconductor DA9055 GPIO"
831 depends on MFD_DA9055
833 Say yes here to enable the GPIO driver for the DA9055 chip.
835 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
836 be controller by this driver.
838 If driver is built as a module it will be called gpio-da9055.
841 tristate "Diolan DLN2 GPIO support"
843 select GPIOLIB_IRQCHIP
846 Select this option to enable GPIO driver for the Diolan DLN2
849 This driver can also be built as a module. If so, the module
850 will be called gpio-dln2.
853 tristate "Janz VMOD-TTL Digital IO Module"
854 depends on MFD_JANZ_CMODIO
856 This enables support for the Janz VMOD-TTL Digital IO module.
857 This driver provides support for driving the pins in output
858 mode only. Input mode is not supported.
861 tristate "Kontron ETX / COMexpress GPIO"
862 depends on MFD_KEMPLD
864 This enables support for the PLD GPIO interface on some Kontron ETX
865 and COMexpress (ETXexpress) modules.
867 This driver can also be built as a module. If so, the module will be
871 tristate "TI/National Semiconductor LP3943 GPIO expander"
872 depends on MFD_LP3943
874 GPIO driver for LP3943 MFD.
875 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
876 Open drain outputs are required for this usage.
879 tristate "GPIO support for PMIC MAX77620 and MAX20024"
880 depends on MFD_MAX77620
882 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
883 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
884 driver also provides interrupt support for each of the gpios.
885 Say yes here to enable the max77620 to be used as gpio controller.
888 bool "Intel MSIC mixed signal gpio support"
889 depends on MFD_INTEL_MSIC
891 Enable support for GPIO on intel MSIC controllers found in
895 bool "TI PALMAS series PMICs GPIO"
896 depends on MFD_PALMAS
898 Select this option to enable GPIO driver for the TI PALMAS
902 bool "RICOH RC5T583 GPIO"
903 depends on MFD_RC5T583
905 Select this option to enable GPIO driver for the Ricoh RC5T583
907 This driver provides the support for driving/reading the gpio pins
908 of RC5T583 device through standard gpio library.
914 select GPIOLIB_IRQCHIP
916 This enables support for the GPIOs found on the STMPE I/O
921 depends on MFD_TC3589X
923 select GPIOLIB_IRQCHIP
925 This enables support for the GPIOs found on the TC3589X
928 config GPIO_TIMBERDALE
929 bool "Support for timberdale GPIO IP"
930 depends on MFD_TIMBERDALE
932 Add support for the GPIO IP in the timberdale FPGA.
935 tristate "TI TPS65086 GPO"
936 depends on MFD_TPS65086
938 This driver supports the GPO on TI TPS65086x PMICs.
941 tristate "TPS65218 GPIO"
942 depends on MFD_TPS65218
944 Select this option to enable GPIO driver for the TPS65218
949 depends on MFD_TPS6586X
951 Select this option to enable GPIO driver for the TPS6586X
956 depends on MFD_TPS65910
958 Select this option to enable GPIO driver for the TPS65910
962 tristate "TI TPS65912 GPIO"
963 depends on MFD_TPS65912
965 This driver supports TPS65912 gpio chip
968 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
969 depends on TWL4030_CORE
971 Say yes here to access the GPIO signals of various multi-function
972 power management chips from Texas Instruments.
975 tristate "TWL6040 GPO"
976 depends on TWL6040_CORE
978 Say yes here to access the GPO signals of twl6040
979 audio chip from Texas Instruments.
982 tristate "Philips UCB1400 GPIO"
983 depends on UCB1400_CORE
985 This enables support for the Philips UCB1400 GPIO pins.
986 The UCB1400 is an AC97 audio codec.
989 tristate "WM831x GPIOs"
990 depends on MFD_WM831X
992 Say yes here to access the GPIO signals of WM831x power management
993 chips from Wolfson Microelectronics.
996 tristate "WM8350 GPIOs"
997 depends on MFD_WM8350
999 Say yes here to access the GPIO signals of WM8350 power management
1000 chips from Wolfson Microelectronics.
1003 tristate "WM8994 GPIOs"
1004 depends on MFD_WM8994
1006 Say yes here to access the GPIO signals of WM8994 audio hub
1007 CODECs from Wolfson Microelectronics.
1011 menu "PCI GPIO expanders"
1015 tristate "AMD 8111 GPIO driver"
1017 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1019 Note, that usually system firmware/ACPI handles GPIO pins on their
1020 own and users might easily break their systems with uncarefull usage
1026 tristate "BT8XX GPIO abuser"
1027 depends on VIDEO_BT848=n
1029 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1030 as a cheap PCI GPIO card.
1032 This chip can be found on Miro, Hauppauge and STB TV-cards.
1034 The card needs to be physically altered for using it as a
1035 GPIO card. For more information on how to build a GPIO card
1036 from a BT8xx TV card, see the documentation file at
1037 Documentation/bt8xxgpio.txt
1041 config GPIO_INTEL_MID
1042 bool "Intel MID GPIO support"
1043 depends on X86_INTEL_MID
1044 select GPIOLIB_IRQCHIP
1046 Say Y here to support Intel MID GPIO.
1048 config GPIO_MERRIFIELD
1049 tristate "Intel Merrifield GPIO support"
1050 depends on X86_INTEL_MID
1051 select GPIOLIB_IRQCHIP
1053 Say Y here to support Intel Merrifield GPIO.
1056 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1057 select GENERIC_IRQ_CHIP
1059 ML7213 is companion chip for Intel Atom E6xx series.
1060 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1061 Hub) which is for IVI(In-Vehicle Infotainment) use.
1062 This driver can access the IOH's GPIO device.
1065 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1066 depends on X86_32 || MIPS || COMPILE_TEST
1067 select GENERIC_IRQ_CHIP
1069 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1070 which is an IOH(Input/Output Hub) for x86 embedded processor.
1071 This driver can access PCH GPIO device.
1073 This driver also can be used for LAPIS Semiconductor IOH(Input/
1074 Output Hub), ML7223 and ML7831.
1075 ML7223 IOH is for MP(Media Phone) use.
1076 ML7831 IOH is for general purpose use.
1077 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1078 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1081 tristate "RDC R-321x GPIO support"
1085 Support for the RDC R321x SoC GPIOs over southbridge
1086 PCI configuration space.
1088 config GPIO_SODAVILLE
1089 bool "Intel Sodaville GPIO support"
1090 depends on X86 && OF
1092 select GENERIC_IRQ_CHIP
1094 Say Y here to support Intel Sodaville GPIO.
1098 menu "SPI GPIO expanders"
1099 depends on SPI_MASTER
1102 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1105 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1106 shift registers. This driver can be used to provide access
1107 to more gpio outputs.
1110 tristate "Maxim MAX7301 GPIO expander"
1113 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1116 tristate "Freescale MC33880 high-side/low-side switch"
1118 SPI driver for Freescale MC33880 high-side/low-side switch.
1119 This provides GPIO interface supporting inputs and outputs.
1122 tristate "Generic parallel-in/serial-out shift register"
1124 GPIO driver for SPI compatible parallel-in/serial-out shift
1125 registers. These are input only devices.
1129 menu "SPI or I2C GPIO expanders"
1130 depends on (SPI_MASTER && !I2C) || I2C
1132 config GPIO_MCP23S08
1133 tristate "Microchip MCP23xxx I/O expander"
1135 select GPIOLIB_IRQCHIP
1137 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
1139 This provides a GPIO interface supporting inputs and outputs.
1140 The I2C versions of the chips can be used as interrupt-controller.
1144 menu "USB GPIO expanders"
1147 config GPIO_VIPERBOARD
1148 tristate "Viperboard GPIO a & b support"
1149 depends on MFD_VIPERBOARD
1151 Say yes here to access the GPIO signals of Nano River
1152 Technologies Viperboard. There are two GPIO chips on the
1153 board: gpioa and gpiob.
1154 See viperboard API specification and Nano
1155 River Tech's viperboard.h for detailed meaning
1156 of the module parameters.