2 # GPIO infrastructure and drivers
5 config ARCH_HAVE_CUSTOM_GPIO_H
8 Selecting this config option from the architecture Kconfig allows
9 the architecture to provide a custom asm/gpio.h implementation
10 overriding the default implementations. New uses of this are
17 This enables GPIO support through the generic GPIO library.
18 You only need to enable this, if you also want to enable
19 one or more of the GPIO drivers below.
34 config GPIOLIB_IRQCHIP
39 bool "Debug GPIO calls"
40 depends on DEBUG_KERNEL
42 Say Y here to add some extra checks and diagnostics to GPIO calls.
43 These checks help ensure that GPIOs have been properly initialized
44 before they are used, and that sleeping calls are not made from
45 non-sleeping contexts. They can make bitbanged serial protocols
46 slower. The diagnostics help catch the type of setup errors
47 that are most common when setting up new platforms or boards.
50 bool "/sys/class/gpio/... (sysfs interface)"
53 Say Y here to add a sysfs interface for GPIOs.
55 This is mostly useful to work around omissions in a system's
56 kernel support. Those are common in custom and semicustom
57 hardware assembled using standard kernels with a minimum of
58 custom patches. In those cases, userspace code may import
59 a given GPIO from the kernel, if no kernel driver requested it.
61 Kernel drivers may also request that a particular GPIO be
62 exported to userspace; this can be useful when debugging.
65 depends on HAS_IOMEM # Only for IOMEM drivers
68 # put drivers in the right section, in alphabetical order
70 # This symbol is selected by both I2C and SPI expanders
74 menu "Memory mapped GPIO drivers"
78 tristate "GPIO driver for 74xx-ICs with MMIO access"
82 Say yes here to support GPIO functionality for 74xx-compatible ICs
83 with MMIO access. Compatible models include:
84 1 bit: 741G125 (Input), 741G74 (Output)
85 2 bits: 742G125 (Input), 7474 (Output)
86 4 bits: 74125 (Input), 74175 (Output)
87 6 bits: 74365 (Input), 74174 (Output)
88 8 bits: 74244 (Input), 74273 (Output)
89 16 bits: 741624 (Input), 7416374 (Output)
92 tristate "Altera GPIO"
94 select GPIOLIB_IRQCHIP
96 Say Y or M here to build support for the Altera PIO device.
98 If driver is built as a module it will be called gpio-altera.
101 tristate "AMD Promontory GPIO support"
105 driver for GPIO functionality on Promontory IOHub
106 Require ACPI ASL code to enumerate as a platform device.
109 tristate "Aspeed GPIO support"
110 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
111 select GPIOLIB_IRQCHIP
113 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
116 tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
118 depends on ATH79 || COMPILE_TEST
120 select GPIOLIB_IRQCHIP
122 Select this option to enable GPIO driver for
123 Atheros AR71XX/AR724X/AR913X SoC devices.
126 tristate "X-Powers AXP209 PMIC GPIO Support"
127 depends on MFD_AXP20X
129 Say yes to enable GPIO support for the AXP209 PMIC
132 bool "Broadcom Kona GPIO"
133 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
135 Turn on GPIO support for Broadcom "Kona" chips.
138 tristate "BRCMSTB GPIO support"
139 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
140 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
142 select GPIOLIB_IRQCHIP
144 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
147 tristate "CLPS711X GPIO support"
148 depends on ARCH_CLPS711X || COMPILE_TEST
151 Say yes here to support GPIO on CLPS711X SoCs.
154 bool "TI Davinci/Keystone GPIO support"
155 default y if ARCH_DAVINCI
156 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
158 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
161 tristate "Synopsys DesignWare APB GPIO driver"
163 select GENERIC_IRQ_CHIP
165 Say Y or M here to build support for the Synopsys DesignWare APB
169 tristate "Emma Mobile GPIO"
170 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
172 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
176 depends on ARCH_EP93XX
180 bool "Axis ETRAX FS General I/O"
181 depends on CRIS || COMPILE_TEST
184 select GPIOLIB_IRQCHIP
186 Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.
189 tristate "Support for GPIO pins on XR17V352/354/358"
190 depends on SERIAL_8250_EXAR
192 Selecting this option will enable handling of GPIO pins present
193 on Exar XR17V352/354/358 chips.
196 bool "GE FPGA based GPIO"
200 Support for common GPIO functionality provided on some GE Single Board
203 This driver provides basic support (configure as input or output, read
204 and write pin state) for GPIO implemented in a number of GE single
209 depends on ARCH_GEMINI
212 select GPIOLIB_IRQCHIP
214 Support for common GPIOs found in Cortina systems Gemini platforms.
216 config GPIO_GENERIC_PLATFORM
217 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
220 Say yes here to support basic platform_device memory-mapped GPIO controllers.
223 tristate "Aeroflex Gaisler GRGPIO support"
228 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
229 VHDL IP core library.
232 tristate "Intel ICH GPIO"
233 depends on PCI && X86
237 Say yes here to support the GPIO functionality of a number of Intel
238 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
239 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
240 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
245 tristate "Intel IOP GPIO"
246 depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST
249 Say yes here to support the GPIO functionality of a number of Intel
255 bool "Loongson-2/3 GPIO support"
256 depends on CPU_LOONGSON2 || CPU_LOONGSON3
258 driver for GPIO functionality on Loongson-2F/3A/3B processors.
261 tristate "NXP LPC18XX/43XX GPIO support"
262 default y if ARCH_LPC18XX
263 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
265 Select this option to enable GPIO driver for
266 NXP LPC18XX/43XX devices.
268 config GPIO_LYNXPOINT
269 tristate "Intel Lynxpoint GPIO support"
270 depends on ACPI && X86
271 select GPIOLIB_IRQCHIP
273 driver for GPIO functionality on Intel Lynxpoint PCH chipset
274 Requires ACPI device enumeration code to set up a platform device.
277 bool "GPIO support for Fujitsu MB86S7x Platforms"
278 depends on ARCH_MB86S7X || COMPILE_TEST
280 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
283 tristate "MEN 16Z127 GPIO support"
287 Say yes here to support the MEN 16Z127 GPIO Controller
289 config GPIO_MM_LANTIQ
290 bool "Lantiq Memory mapped GPIOs"
291 depends on LANTIQ && SOC_XWAY
293 This enables support for memory mapped GPIOs on the External Bus Unit
294 (EBU) found on Lantiq SoCs. The gpios are output only as they are
295 created by attaching a 16bit latch to the bus.
298 tristate "GPIO Testing Driver"
299 depends on GPIOLIB && SYSFS
301 select GPIOLIB_IRQCHIP
304 This enables GPIO Testing driver, which provides a way to test GPIO
305 subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
306 must be selected for this test.
307 User could use it through the script in
308 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
312 bool "MOXART GPIO support"
313 depends on ARCH_MOXART || COMPILE_TEST
316 Select this option to enable GPIO driver for
317 MOXA ART SoC devices.
321 depends on PPC_MPC52xx
324 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
325 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
326 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
331 Say Y here if you're going to use hardware that connects to the
332 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
336 depends on PLAT_ORION
338 select GENERIC_IRQ_CHIP
344 select GENERIC_IRQ_CHIP
350 select GENERIC_IRQ_CHIP
353 tristate "Cavium OCTEON GPIO"
354 depends on GPIOLIB && CAVIUM_OCTEON_SOC
357 Say yes here to support the on-chip GPIO lines on the OCTEON
361 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
362 default y if ARCH_OMAP
364 select GENERIC_IRQ_CHIP
365 select GPIOLIB_IRQCHIP
367 Say yes here to enable GPIO support for TI OMAP SoCs.
370 bool "PrimeCell PL061 GPIO support"
373 select GPIOLIB_IRQCHIP
375 Say yes here to support the PrimeCell PL061 GPIO device
378 bool "PXA GPIO support"
379 depends on ARCH_PXA || ARCH_MMP
381 Say yes here to support the PXA GPIO device
384 tristate "Renesas R-Car GPIO"
385 depends on ARCH_RENESAS || COMPILE_TEST
386 select GPIOLIB_IRQCHIP
388 Say yes here to support GPIO on Renesas R-Car SoCs.
390 config GPIO_SPEAR_SPICS
391 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
392 depends on PLAT_SPEAR
393 select GENERIC_IRQ_CHIP
395 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
398 bool "STA2x11/ConneXt GPIO support"
399 depends on MFD_STA2X11
400 select GENERIC_IRQ_CHIP
402 Say yes here to support the STA2x11/ConneXt GPIO device.
403 The GPIO module has 128 GPIO pins with alternate functions.
406 bool "XWAY STP GPIOs"
409 This enables support for the Serial To Parallel (STP) unit found on
410 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
411 that can be up to 24 bit. This peripheral is aimed at driving leds.
412 Some of the gpios/leds can be auto updated by the soc with dsl and
416 tristate "GPIO based on SYSCON"
417 depends on MFD_SYSCON && OF
419 Say yes here to support GPIO functionality though SYSCON driver.
423 select GENERIC_IRQ_CHIP
427 bool "NVIDIA Tegra GPIO support"
429 depends on ARCH_TEGRA || COMPILE_TEST
432 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
435 tristate "TS-4800 DIO blocks and compatibles"
437 depends on SOC_IMX51 || COMPILE_TEST
440 This driver support TS-4800 FPGA GPIO controllers.
443 bool "Toumaz Xenif TZ1090 GPIO support"
444 depends on SOC_TZ1090
445 select GENERIC_IRQ_CHIP
448 Say yes here to support Toumaz Xenif TZ1090 GPIOs.
450 config GPIO_TZ1090_PDC
451 bool "Toumaz Xenif TZ1090 PDC GPIO support"
452 depends on SOC_TZ1090
455 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
459 depends on ARCH_MXC && SOC_VF610
460 select GPIOLIB_IRQCHIP
462 Say yes here to support Vybrid vf610 GPIOs.
465 tristate "NEC VR4100 series General-purpose I/O Uint support"
466 depends on CPU_VR41XX
468 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
471 tristate "VIA VX855/VX875 GPIO"
472 depends on (X86 || COMPILE_TEST) && PCI
476 Support access to the VX855/VX875 GPIO lines through the gpio library.
478 This driver provides common support for accessing the device,
479 additional drivers must be enabled in order to use the
480 functionality of the device.
483 bool "APM X-Gene GPIO controller support"
484 depends on ARM64 && OF_GPIO
486 This driver is to support the GPIO block within the APM X-Gene SoC
487 platform's generic flash controller. The GPIO pins are muxed with
488 the generic flash controller's address and data pins. Say yes
489 here to enable the GFC GPIO functionality.
492 tristate "APM X-Gene GPIO standby controller support"
493 depends on ARCH_XGENE && OF_GPIO
495 select GPIOLIB_IRQCHIP
497 This driver supports the GPIO block within the APM X-Gene
498 Standby Domain. Say yes here to enable the GPIO functionality.
501 tristate "Xilinx GPIO support"
504 Say yes here to support the Xilinx FPGA GPIO device
507 tristate "Netlogic XLP GPIO support"
508 depends on OF_GPIO && (CPU_XLP || ARCH_VULCAN || COMPILE_TEST)
509 select GPIOLIB_IRQCHIP
511 This driver provides support for GPIO interface on Netlogic XLP MIPS64
512 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
518 bool "Xtensa GPIO32 support"
520 depends on HAVE_XTENSA_GPIO32
523 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
524 and EXPSTATE (output) ports
527 bool "LSI ZEVIO SoC memory mapped GPIOs"
528 depends on ARM && OF_GPIO
530 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
533 tristate "Xilinx Zynq GPIO support"
534 depends on ARCH_ZYNQ || ARCH_ZYNQMP
535 select GPIOLIB_IRQCHIP
537 Say yes here to support Xilinx Zynq GPIO controller.
540 bool "ZTE ZX GPIO support"
541 depends on ARCH_ZX || COMPILE_TEST
542 select GPIOLIB_IRQCHIP
544 Say yes here to support the GPIO device on ZTE ZX SoCs.
546 config GPIO_LOONGSON1
547 tristate "Loongson1 GPIO support"
548 depends on MACH_LOONGSON32
551 Say Y or M here to support GPIO on Loongson1 SoCs.
555 menu "Port-mapped I/O GPIO drivers"
556 depends on X86 # Unconditional I/O space access
558 config GPIO_104_DIO_48E
559 tristate "ACCES 104-DIO-48E GPIO support"
560 depends on ISA_BUS_API
561 select GPIOLIB_IRQCHIP
563 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
564 104-DIO-24E). The base port addresses for the devices may be
565 configured via the base module parameter. The interrupt line numbers
566 for the devices may be configured via the irq module parameter.
568 config GPIO_104_IDIO_16
569 tristate "ACCES 104-IDIO-16 GPIO support"
570 depends on ISA_BUS_API
571 select GPIOLIB_IRQCHIP
573 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
574 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
575 base port addresses for the devices may be configured via the base
576 module parameter. The interrupt line numbers for the devices may be
577 configured via the irq module parameter.
579 config GPIO_104_IDI_48
580 tristate "ACCES 104-IDI-48 GPIO support"
581 depends on ISA_BUS_API
582 select GPIOLIB_IRQCHIP
584 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
585 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
586 the devices may be configured via the base module parameter. The
587 interrupt line numbers for the devices may be configured via the irq
591 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
593 This option enables support for GPIOs found on Fintek Super-I/O
594 chips F71869, F71869A, F71882FG, F71889F and F81866.
596 To compile this driver as a module, choose M here: the module will
597 be called f7188x-gpio.
600 tristate "Diamond Systems GPIO-MM GPIO support"
601 depends on ISA_BUS_API
603 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
605 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
606 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
607 support for these 48 channels of digital I/O.
609 The base port addresses for the devices may be configured via the base
610 array module parameter.
613 tristate "IT87xx GPIO support"
615 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
617 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
618 supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
620 To compile this driver as a module, choose M here: the module will
624 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
625 depends on (X86 || COMPILE_TEST) && PCI
629 Say yes here to support GPIO interface on Intel Poulsbo SCH,
630 Intel Tunnel Creek processor, Intel Centerton processor or
631 Intel Quark X1000 SoC.
633 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
634 powered by the core power rail and are turned off during sleep
635 modes (S3 and higher). The remaining four GPIOs are powered by
636 the Intel SCH suspend power supply. These GPIOs remain
637 active during S3. The suspend powered GPIOs can be used to wake the
638 system from the Suspend-to-RAM state.
640 The Intel Tunnel Creek processor has 5 GPIOs powered by the
641 core power rail and 9 from suspend power supply.
643 The Intel Centerton processor has a total of 30 GPIO pins.
644 Twenty-one are powered by the core power rail and 9 from the
645 suspend power supply.
647 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
648 power well and 6 from the suspend power well.
651 tristate "SMSC SCH311x SuperI/O GPIO"
653 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
654 SCH3116 "Super I/O" chipsets.
656 To compile this driver as a module, choose M here: the module will
657 be called gpio-sch311x.
660 tristate "TS-5500 DIO blocks and compatibles"
661 depends on TS5500 || COMPILE_TEST
663 This driver supports Digital I/O exposed by pin blocks found on some
664 Technologic Systems platforms. It includes, but is not limited to, 3
665 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
669 tristate "WinSystems WS16C48 GPIO support"
670 depends on ISA_BUS_API
671 select GPIOLIB_IRQCHIP
673 Enables GPIO support for the WinSystems WS16C48. The base port
674 addresses for the devices may be configured via the base module
675 parameter. The interrupt line numbers for the devices may be
676 configured via the irq module parameter.
680 menu "I2C GPIO expanders"
684 tristate "ADP5588 I2C GPIO expander"
686 This option enables support for 18 GPIOs found
687 on Analog Devices ADP5588 GPIO Expanders.
689 config GPIO_ADP5588_IRQ
690 bool "Interrupt controller support for ADP5588"
691 depends on GPIO_ADP5588=y
693 Say yes here to enable the adp5588 to be used as an interrupt
694 controller. It requires the driver to be built in the kernel.
697 tristate "Avionic Design N-bit GPIO expander"
699 select GPIOLIB_IRQCHIP
701 This option enables support for N GPIOs found on Avionic Design
702 I2C GPIO expanders. The register space will be extended by powers
703 of two, so the controller will need to accommodate for that. For
704 example: if a controller provides 48 pins, 6 registers will be
705 enough to represent all pins, but the driver will assume a
706 register layout for 64 pins (8 registers).
709 tristate "Maxim MAX7300 GPIO expander"
712 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
715 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
717 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
718 Port Expanders. Each IO port on these chips has a fixed role of
719 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
720 Input and Output (designed by 'P'). The combinations are listed
723 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
724 max7322 (4I4O), max7323 (4P4O)
726 16 bits: max7324 (8I8O), max7325 (8P8O),
727 max7326 (4I12O), max7327 (4P12O)
729 Board setup code must specify the model to use, and the start
730 number for these GPIOs.
732 config GPIO_MAX732X_IRQ
733 bool "Interrupt controller support for MAX732x"
734 depends on GPIO_MAX732X=y
735 select GPIOLIB_IRQCHIP
737 Say yes here to enable the max732x to be used as an interrupt
738 controller. It requires the driver to be built in the kernel.
740 config GPIO_MC9S08DZ60
741 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
742 depends on I2C=y && MACH_MX35_3DS
744 Select this to enable the MC9S08DZ60 GPIO driver
747 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
749 Say yes here to provide access to several register-oriented
750 SMBus I/O expanders, made mostly by NXP or TI. Compatible
753 4 bits: pca9536, pca9537
755 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
756 pca9556, pca9557, pca9574, tca6408, xra1202
758 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
763 40 bits: pca9505, pca9698
765 config GPIO_PCA953X_IRQ
766 bool "Interrupt controller support for PCA953x"
767 depends on GPIO_PCA953X=y
768 select GPIOLIB_IRQCHIP
770 Say yes here to enable the pca953x to be used as an interrupt
771 controller. It requires the driver to be built in the kernel.
774 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
775 select GPIOLIB_IRQCHIP
778 Say yes here to provide access to most "quasi-bidirectional" I2C
779 GPIO expanders used for additional digital outputs or inputs.
780 Most of these parts are from NXP, though TI is a second source for
781 some of them. Compatible models include:
783 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
784 pca9670, pca9672, pca9674, pca9674a,
787 16 bits: pcf8575, pcf8575c, pca8575,
788 pca9671, pca9673, pca9675
790 Your board setup code will need to declare the expanders in
791 use, and assign numbers to the GPIOs they expose. Those GPIOs
792 can then be used from drivers and other kernel code, just like
793 other GPIOs, but only accessible from task contexts.
795 This driver provides an in-kernel interface to those GPIOs using
796 platform-neutral GPIO calls.
799 bool "Semtech SX150x I2C GPIO expander (deprecated)"
800 depends on PINCTRL && I2C=y
801 select PINCTRL_SX150X
804 Say yes here to provide support for Semtech SX150x-series I2C
805 GPIO expanders. The GPIO driver was replaced by a Pinctrl version.
808 tristate "TPIC2810 8-Bit I2C GPO expander"
810 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
812 To compile this driver as a module, choose M here: the module will
813 be called gpio-tpic2810.
816 tristate "Technologic Systems FPGA I2C GPIO"
817 depends on SOC_IMX6 || COMPILE_TEST
820 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
821 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
825 menu "MFD GPIO expanders"
828 tristate "GPIO Support for ADP5520 PMIC"
829 depends on PMIC_ADP5520
831 This option enables support for on-chip GPIO found
832 on Analog Devices ADP5520 PMICs.
834 config GPIO_ALTERA_A10SR
835 tristate "Altera Arria10 System Resource GPIO"
836 depends on MFD_ALTERA_A10SR
838 Driver for Arria10 Development Kit GPIO expansion which
839 includes reads of pushbuttons and DIP switches as well
843 tristate "Wolfson Microelectronics Arizona class devices"
844 depends on MFD_ARIZONA
846 Support for GPIOs on Wolfson Arizona class devices.
848 config GPIO_CRYSTAL_COVE
849 tristate "GPIO support for Crystal Cove PMIC"
850 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
851 select GPIOLIB_IRQCHIP
853 Support for GPIO pins on Crystal Cove PMIC.
855 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
858 This driver can also be built as a module. If so, the module will be
859 called gpio-crystalcove.
862 tristate "AMD CS5535/CS5536 GPIO support"
863 depends on X86 || MIPS || COMPILE_TEST
864 depends on MFD_CS5535
866 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
867 can be used for quite a number of things. The CS5535/6 is found on
868 AMD Geode and Lemote Yeeloong devices.
873 tristate "Dialog DA9052 GPIO"
874 depends on PMIC_DA9052
876 Say yes here to enable the GPIO driver for the DA9052 chip.
879 tristate "Dialog Semiconductor DA9055 GPIO"
880 depends on MFD_DA9055
882 Say yes here to enable the GPIO driver for the DA9055 chip.
884 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
885 be controller by this driver.
887 If driver is built as a module it will be called gpio-da9055.
890 tristate "Diolan DLN2 GPIO support"
892 select GPIOLIB_IRQCHIP
895 Select this option to enable GPIO driver for the Diolan DLN2
898 This driver can also be built as a module. If so, the module
899 will be called gpio-dln2.
902 bool "HTC EGPIO support"
903 depends on GPIOLIB && ARM
905 This driver supports the CPLD egpio chip present on
906 several HTC phones. It provides basic support for input
907 pins, output pins, and irqs.
910 tristate "Janz VMOD-TTL Digital IO Module"
911 depends on MFD_JANZ_CMODIO
913 This enables support for the Janz VMOD-TTL Digital IO module.
914 This driver provides support for driving the pins in output
915 mode only. Input mode is not supported.
918 tristate "Kontron ETX / COMexpress GPIO"
919 depends on MFD_KEMPLD
921 This enables support for the PLD GPIO interface on some Kontron ETX
922 and COMexpress (ETXexpress) modules.
924 This driver can also be built as a module. If so, the module will be
928 tristate "TI/National Semiconductor LP3943 GPIO expander"
929 depends on MFD_LP3943
931 GPIO driver for LP3943 MFD.
932 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
933 Open drain outputs are required for this usage.
936 tristate "TI LP873X GPO"
937 depends on MFD_TI_LP873X
939 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
942 This driver can also be built as a module. If so, the module will be
946 tristate "GPIO support for PMIC MAX77620 and MAX20024"
947 depends on MFD_MAX77620
949 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
950 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
951 driver also provides interrupt support for each of the gpios.
952 Say yes here to enable the max77620 to be used as gpio controller.
955 bool "Intel MSIC mixed signal gpio support"
956 depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
958 Enable support for GPIO on intel MSIC controllers found in
962 bool "TI PALMAS series PMICs GPIO"
963 depends on MFD_PALMAS
965 Select this option to enable GPIO driver for the TI PALMAS
969 bool "RICOH RC5T583 GPIO"
970 depends on MFD_RC5T583
972 Select this option to enable GPIO driver for the Ricoh RC5T583
974 This driver provides the support for driving/reading the gpio pins
975 of RC5T583 device through standard gpio library.
981 select GPIOLIB_IRQCHIP
983 This enables support for the GPIOs found on the STMPE I/O
988 depends on MFD_TC3589X
990 select GPIOLIB_IRQCHIP
992 This enables support for the GPIOs found on the TC3589X
995 config GPIO_TIMBERDALE
996 bool "Support for timberdale GPIO IP"
997 depends on MFD_TIMBERDALE
999 Add support for the GPIO IP in the timberdale FPGA.
1001 config GPIO_TPS65086
1002 tristate "TI TPS65086 GPO"
1003 depends on MFD_TPS65086
1005 This driver supports the GPO on TI TPS65086x PMICs.
1007 config GPIO_TPS65218
1008 tristate "TPS65218 GPIO"
1009 depends on MFD_TPS65218
1011 Select this option to enable GPIO driver for the TPS65218
1014 config GPIO_TPS6586X
1015 bool "TPS6586X GPIO"
1016 depends on MFD_TPS6586X
1018 Select this option to enable GPIO driver for the TPS6586X
1021 config GPIO_TPS65910
1022 bool "TPS65910 GPIO"
1023 depends on MFD_TPS65910
1025 Select this option to enable GPIO driver for the TPS65910
1028 config GPIO_TPS65912
1029 tristate "TI TPS65912 GPIO"
1030 depends on MFD_TPS65912
1032 This driver supports TPS65912 gpio chip
1035 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1036 depends on TWL4030_CORE
1038 Say yes here to access the GPIO signals of various multi-function
1039 power management chips from Texas Instruments.
1042 tristate "TWL6040 GPO"
1043 depends on TWL6040_CORE
1045 Say yes here to access the GPO signals of twl6040
1046 audio chip from Texas Instruments.
1049 tristate "Philips UCB1400 GPIO"
1050 depends on UCB1400_CORE
1052 This enables support for the Philips UCB1400 GPIO pins.
1053 The UCB1400 is an AC97 audio codec.
1055 config GPIO_WHISKEY_COVE
1056 tristate "GPIO support for Whiskey Cove PMIC"
1057 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1058 select GPIOLIB_IRQCHIP
1060 Support for GPIO pins on Whiskey Cove PMIC.
1062 Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1065 This driver can also be built as a module. If so, the module will be
1069 tristate "WM831x GPIOs"
1070 depends on MFD_WM831X
1072 Say yes here to access the GPIO signals of WM831x power management
1073 chips from Wolfson Microelectronics.
1076 tristate "WM8350 GPIOs"
1077 depends on MFD_WM8350
1079 Say yes here to access the GPIO signals of WM8350 power management
1080 chips from Wolfson Microelectronics.
1083 tristate "WM8994 GPIOs"
1084 depends on MFD_WM8994
1086 Say yes here to access the GPIO signals of WM8994 audio hub
1087 CODECs from Wolfson Microelectronics.
1091 menu "PCI GPIO expanders"
1095 tristate "AMD 8111 GPIO driver"
1096 depends on X86 || COMPILE_TEST
1098 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1100 Note, that usually system firmware/ACPI handles GPIO pins on their
1101 own and users might easily break their systems with uncarefull usage
1107 tristate "BT8XX GPIO abuser"
1108 depends on VIDEO_BT848=n
1110 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1111 as a cheap PCI GPIO card.
1113 This chip can be found on Miro, Hauppauge and STB TV-cards.
1115 The card needs to be physically altered for using it as a
1116 GPIO card. For more information on how to build a GPIO card
1117 from a BT8xx TV card, see the documentation file at
1118 Documentation/bt8xxgpio.txt
1122 config GPIO_INTEL_MID
1123 bool "Intel MID GPIO support"
1124 depends on X86_INTEL_MID
1125 select GPIOLIB_IRQCHIP
1127 Say Y here to support Intel MID GPIO.
1129 config GPIO_MERRIFIELD
1130 tristate "Intel Merrifield GPIO support"
1131 depends on X86_INTEL_MID
1132 select GPIOLIB_IRQCHIP
1134 Say Y here to support Intel Merrifield GPIO.
1137 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1138 depends on X86 || COMPILE_TEST
1139 select GENERIC_IRQ_CHIP
1141 ML7213 is companion chip for Intel Atom E6xx series.
1142 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1143 Hub) which is for IVI(In-Vehicle Infotainment) use.
1144 This driver can access the IOH's GPIO device.
1147 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1148 depends on X86_32 || MIPS || COMPILE_TEST
1149 select GENERIC_IRQ_CHIP
1151 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1152 which is an IOH(Input/Output Hub) for x86 embedded processor.
1153 This driver can access PCH GPIO device.
1155 This driver also can be used for LAPIS Semiconductor IOH(Input/
1156 Output Hub), ML7223 and ML7831.
1157 ML7223 IOH is for MP(Media Phone) use.
1158 ML7831 IOH is for general purpose use.
1159 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1160 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1162 config GPIO_PCI_IDIO_16
1163 tristate "ACCES PCI-IDIO-16 GPIO support"
1164 select GPIOLIB_IRQCHIP
1166 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1167 generated when any of the inputs change state (low to high or high to
1168 low). Input filter control is not supported by this driver, and the
1169 input filters are deactivated by this driver.
1172 tristate "RDC R-321x GPIO support"
1176 Support for the RDC R321x SoC GPIOs over southbridge
1177 PCI configuration space.
1179 config GPIO_SODAVILLE
1180 bool "Intel Sodaville GPIO support"
1181 depends on X86 && OF
1183 select GENERIC_IRQ_CHIP
1185 Say Y here to support Intel Sodaville GPIO.
1189 menu "SPI GPIO expanders"
1190 depends on SPI_MASTER
1193 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1196 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1197 shift registers. This driver can be used to provide access
1198 to more gpio outputs.
1201 tristate "Maxim MAX7301 GPIO expander"
1204 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1207 tristate "Freescale MC33880 high-side/low-side switch"
1209 SPI driver for Freescale MC33880 high-side/low-side switch.
1210 This provides GPIO interface supporting inputs and outputs.
1213 tristate "Generic parallel-in/serial-out shift register"
1215 GPIO driver for SPI compatible parallel-in/serial-out shift
1216 registers. These are input only devices.
1220 menu "SPI or I2C GPIO expanders"
1221 depends on (SPI_MASTER && !I2C) || I2C
1223 config GPIO_MCP23S08
1224 tristate "Microchip MCP23xxx I/O expander"
1226 select GPIOLIB_IRQCHIP
1227 select REGMAP_I2C if I2C
1228 select REGMAP if SPI_MASTER
1230 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
1232 This provides a GPIO interface supporting inputs and outputs.
1233 The I2C versions of the chips can be used as interrupt-controller.
1237 menu "USB GPIO expanders"
1240 config GPIO_VIPERBOARD
1241 tristate "Viperboard GPIO a & b support"
1242 depends on MFD_VIPERBOARD
1244 Say yes here to access the GPIO signals of Nano River
1245 Technologies Viperboard. There are two GPIO chips on the
1246 board: gpioa and gpiob.
1247 See viperboard API specification and Nano
1248 River Tech's viperboard.h for detailed meaning
1249 of the module parameters.