Version:  2.0.40 2.2.26 2.4.37 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10

Linux/drivers/gpio/Kconfig

  1 #
  2 # GPIO infrastructure and drivers
  3 #
  4 
  5 config ARCH_HAVE_CUSTOM_GPIO_H
  6         bool
  7         help
  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
 11           strongly discouraged.
 12 
 13 menuconfig GPIOLIB
 14         bool "GPIO Support"
 15         select ANON_INODES
 16         help
 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.
 20 
 21           If unsure, say N.
 22 
 23 if GPIOLIB
 24 
 25 config OF_GPIO
 26         def_bool y
 27         depends on OF
 28         depends on HAS_IOMEM
 29 
 30 config GPIO_ACPI
 31         def_bool y
 32         depends on ACPI
 33 
 34 config GPIOLIB_IRQCHIP
 35         select IRQ_DOMAIN
 36         bool
 37 
 38 config DEBUG_GPIO
 39         bool "Debug GPIO calls"
 40         depends on DEBUG_KERNEL
 41         help
 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.
 48 
 49 config GPIO_SYSFS
 50         bool "/sys/class/gpio/... (sysfs interface)"
 51         depends on SYSFS
 52         help
 53           Say Y here to add a sysfs interface for GPIOs.
 54 
 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.
 60 
 61           Kernel drivers may also request that a particular GPIO be
 62           exported to userspace; this can be useful when debugging.
 63 
 64 config GPIO_GENERIC
 65         depends on HAS_IOMEM # Only for IOMEM drivers
 66         tristate
 67 
 68 # put drivers in the right section, in alphabetical order
 69 
 70 # This symbol is selected by both I2C and SPI expanders
 71 config GPIO_MAX730X
 72         tristate
 73 
 74 menu "Memory mapped GPIO drivers"
 75         depends on HAS_IOMEM
 76 
 77 config GPIO_74XX_MMIO
 78         tristate "GPIO driver for 74xx-ICs with MMIO access"
 79         depends on OF_GPIO
 80         select GPIO_GENERIC
 81         help
 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)
 90 
 91 config GPIO_ALTERA
 92         tristate "Altera GPIO"
 93         depends on OF_GPIO
 94         select GPIOLIB_IRQCHIP
 95         help
 96           Say Y or M here to build support for the Altera PIO device.
 97 
 98           If driver is built as a module it will be called gpio-altera.
 99 
100 config GPIO_AMDPT
101         tristate "AMD Promontory GPIO support"
102         depends on ACPI
103         select GPIO_GENERIC
104         help
105           driver for GPIO functionality on Promontory IOHub
106           Require ACPI ASL code to enumerate as a platform device.
107 
108 config GPIO_ASPEED
109         tristate "Aspeed GPIO support"
110         depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
111         select GPIOLIB_IRQCHIP
112         help
113           Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
114 
115 config GPIO_ATH79
116         tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
117         default y if ATH79
118         depends on ATH79 || COMPILE_TEST
119         select GPIO_GENERIC
120         select GPIOLIB_IRQCHIP
121         help
122           Select this option to enable GPIO driver for
123           Atheros AR71XX/AR724X/AR913X SoC devices.
124 
125 config GPIO_AXP209
126         tristate "X-Powers AXP209 PMIC GPIO Support"
127         depends on MFD_AXP20X
128         help
129           Say yes to enable GPIO support for the AXP209 PMIC
130 
131 config GPIO_BCM_KONA
132         bool "Broadcom Kona GPIO"
133         depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
134         help
135           Turn on GPIO support for Broadcom "Kona" chips.
136 
137 config GPIO_BRCMSTB
138         tristate "BRCMSTB GPIO support"
139         default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
140         depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
141         select GPIO_GENERIC
142         select GPIOLIB_IRQCHIP
143         help
144           Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
145 
146 config GPIO_CLPS711X
147         tristate "CLPS711X GPIO support"
148         depends on ARCH_CLPS711X || COMPILE_TEST
149         select GPIO_GENERIC
150         help
151           Say yes here to support GPIO on CLPS711X SoCs.
152 
153 config GPIO_DAVINCI
154         bool "TI Davinci/Keystone GPIO support"
155         default y if ARCH_DAVINCI
156         depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
157         help
158           Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
159 
160 config GPIO_DWAPB
161         tristate "Synopsys DesignWare APB GPIO driver"
162         select GPIO_GENERIC
163         select GENERIC_IRQ_CHIP
164         help
165           Say Y or M here to build support for the Synopsys DesignWare APB
166           GPIO block.
167 
168 config GPIO_EM
169         tristate "Emma Mobile GPIO"
170         depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
171         help
172           Say yes here to support GPIO on Renesas Emma Mobile SoCs.
173 
174 config GPIO_EP93XX
175         def_bool y
176         depends on ARCH_EP93XX
177         select GPIO_GENERIC
178 
179 config GPIO_ETRAXFS
180         bool "Axis ETRAX FS General I/O"
181         depends on CRIS || COMPILE_TEST
182         depends on OF_GPIO
183         select GPIO_GENERIC
184         select GPIOLIB_IRQCHIP
185         help
186           Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.
187 
188 config GPIO_GE_FPGA
189         bool "GE FPGA based GPIO"
190         depends on GE_FPGA
191         select GPIO_GENERIC
192         help
193           Support for common GPIO functionality provided on some GE Single Board
194           Computers.
195 
196           This driver provides basic support (configure as input or output, read
197           and write pin state) for GPIO implemented in a number of GE single
198           board computers.
199 
200 config GPIO_GENERIC_PLATFORM
201         tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
202         select GPIO_GENERIC
203         help
204           Say yes here to support basic platform_device memory-mapped GPIO controllers.
205 
206 config GPIO_GRGPIO
207         tristate "Aeroflex Gaisler GRGPIO support"
208         depends on OF_GPIO
209         select GPIO_GENERIC
210         select IRQ_DOMAIN
211         help
212           Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
213           VHDL IP core library.
214 
215 config GPIO_ICH
216         tristate "Intel ICH GPIO"
217         depends on PCI && X86
218         select MFD_CORE
219         select LPC_ICH
220         help
221           Say yes here to support the GPIO functionality of a number of Intel
222           ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
223           ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
224           Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
225 
226           If unsure, say N.
227 
228 config GPIO_IOP
229         tristate "Intel IOP GPIO"
230         depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST
231         select GPIO_GENERIC
232         help
233           Say yes here to support the GPIO functionality of a number of Intel
234           IOP32X or IOP33X.
235 
236           If unsure, say N.
237 
238 config GPIO_LOONGSON
239         bool "Loongson-2/3 GPIO support"
240         depends on CPU_LOONGSON2 || CPU_LOONGSON3
241         help
242           driver for GPIO functionality on Loongson-2F/3A/3B processors.
243 
244 config GPIO_LPC18XX
245         tristate "NXP LPC18XX/43XX GPIO support"
246         default y if ARCH_LPC18XX
247         depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
248         help
249           Select this option to enable GPIO driver for
250           NXP LPC18XX/43XX devices.
251 
252 config GPIO_LYNXPOINT
253         tristate "Intel Lynxpoint GPIO support"
254         depends on ACPI && X86
255         select GPIOLIB_IRQCHIP
256         help
257           driver for GPIO functionality on Intel Lynxpoint PCH chipset
258           Requires ACPI device enumeration code to set up a platform device.
259 
260 config GPIO_MB86S7X
261         bool "GPIO support for Fujitsu MB86S7x Platforms"
262         depends on ARCH_MB86S7X || COMPILE_TEST
263         help
264           Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
265 
266 config GPIO_MENZ127
267         tristate "MEN 16Z127 GPIO support"
268         depends on MCB
269         select GPIO_GENERIC
270         help
271          Say yes here to support the MEN 16Z127 GPIO Controller
272 
273 config GPIO_MM_LANTIQ
274         bool "Lantiq Memory mapped GPIOs"
275         depends on LANTIQ && SOC_XWAY
276         help
277           This enables support for memory mapped GPIOs on the External Bus Unit
278           (EBU) found on Lantiq SoCs. The gpios are output only as they are
279           created by attaching a 16bit latch to the bus.
280 
281 config GPIO_MOCKUP
282         tristate "GPIO Testing Driver"
283         depends on GPIOLIB && SYSFS
284         select GPIO_SYSFS
285         help
286           This enables GPIO Testing driver, which provides a way to test GPIO
287           subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
288           must be selected for this test.
289           User could use it through the script in
290           tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
291           it.
292 
293 config GPIO_MOXART
294         bool "MOXART GPIO support"
295         depends on ARCH_MOXART || COMPILE_TEST
296         select GPIO_GENERIC
297         help
298           Select this option to enable GPIO driver for
299           MOXA ART SoC devices.
300 
301 config GPIO_MPC5200
302         def_bool y
303         depends on PPC_MPC52xx
304 
305 config GPIO_MPC8XXX
306         bool "MPC512x/MPC8xxx/QorIQ GPIO support"
307         depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
308                    FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
309                    COMPILE_TEST
310         select GPIO_GENERIC
311         select IRQ_DOMAIN
312         help
313           Say Y here if you're going to use hardware that connects to the
314           MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
315 
316 config GPIO_MVEBU
317         def_bool y
318         depends on PLAT_ORION
319         depends on OF_GPIO
320         select GENERIC_IRQ_CHIP
321 
322 config GPIO_MXC
323         def_bool y
324         depends on ARCH_MXC
325         select GPIO_GENERIC
326         select GENERIC_IRQ_CHIP
327 
328 config GPIO_MXS
329         def_bool y
330         depends on ARCH_MXS
331         select GPIO_GENERIC
332         select GENERIC_IRQ_CHIP
333 
334 config GPIO_OCTEON
335         tristate "Cavium OCTEON GPIO"
336         depends on GPIOLIB && CAVIUM_OCTEON_SOC
337         default y
338         help
339           Say yes here to support the on-chip GPIO lines on the OCTEON
340           family of SOCs.
341 
342 config GPIO_OMAP
343         tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
344         default y if ARCH_OMAP
345         depends on ARM
346         select GENERIC_IRQ_CHIP
347         select GPIOLIB_IRQCHIP
348         help
349           Say yes here to enable GPIO support for TI OMAP SoCs.
350 
351 config GPIO_PL061
352         bool "PrimeCell PL061 GPIO support"
353         depends on ARM_AMBA
354         select IRQ_DOMAIN
355         select GPIOLIB_IRQCHIP
356         help
357           Say yes here to support the PrimeCell PL061 GPIO device
358 
359 config GPIO_PXA
360         bool "PXA GPIO support"
361         depends on ARCH_PXA || ARCH_MMP
362         help
363           Say yes here to support the PXA GPIO device
364 
365 config GPIO_RCAR
366         tristate "Renesas R-Car GPIO"
367         depends on ARCH_RENESAS || COMPILE_TEST
368         select GPIOLIB_IRQCHIP
369         help
370           Say yes here to support GPIO on Renesas R-Car SoCs.
371 
372 config GPIO_SPEAR_SPICS
373         bool "ST SPEAr13xx SPI Chip Select as GPIO support"
374         depends on PLAT_SPEAR
375         select GENERIC_IRQ_CHIP
376         help
377           Say yes here to support ST SPEAr SPI Chip Select as GPIO device
378 
379 config GPIO_STA2X11
380         bool "STA2x11/ConneXt GPIO support"
381         depends on MFD_STA2X11
382         select GENERIC_IRQ_CHIP
383         help
384           Say yes here to support the STA2x11/ConneXt GPIO device.
385           The GPIO module has 128 GPIO pins with alternate functions.
386 
387 config GPIO_STP_XWAY
388         bool "XWAY STP GPIOs"
389         depends on SOC_XWAY
390         help
391           This enables support for the Serial To Parallel (STP) unit found on
392           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
393           that can be up to 24 bit. This peripheral is aimed at driving leds.
394           Some of the gpios/leds can be auto updated by the soc with dsl and
395           phy status.
396 
397 config GPIO_SYSCON
398         tristate "GPIO based on SYSCON"
399         depends on MFD_SYSCON && OF
400         help
401           Say yes here to support GPIO functionality though SYSCON driver.
402 
403 config GPIO_TB10X
404         bool
405         select GENERIC_IRQ_CHIP
406         select OF_GPIO
407 
408 config GPIO_TEGRA
409         bool "NVIDIA Tegra GPIO support"
410         default ARCH_TEGRA
411         depends on ARCH_TEGRA || COMPILE_TEST
412         depends on OF_GPIO
413         help
414           Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
415 
416 config GPIO_TS4800
417         tristate "TS-4800 DIO blocks and compatibles"
418         depends on OF_GPIO
419         depends on SOC_IMX51 || COMPILE_TEST
420         select GPIO_GENERIC
421         help
422           This driver support TS-4800 FPGA GPIO controllers.
423 
424 config GPIO_TZ1090
425         bool "Toumaz Xenif TZ1090 GPIO support"
426         depends on SOC_TZ1090
427         select GENERIC_IRQ_CHIP
428         default y
429         help
430           Say yes here to support Toumaz Xenif TZ1090 GPIOs.
431 
432 config GPIO_TZ1090_PDC
433         bool "Toumaz Xenif TZ1090 PDC GPIO support"
434         depends on SOC_TZ1090
435         default y
436         help
437           Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
438 
439 config GPIO_VF610
440         def_bool y
441         depends on ARCH_MXC && SOC_VF610
442         select GPIOLIB_IRQCHIP
443         help
444           Say yes here to support Vybrid vf610 GPIOs.
445 
446 config GPIO_VR41XX
447         tristate "NEC VR4100 series General-purpose I/O Uint support"
448         depends on CPU_VR41XX
449         help
450           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
451 
452 config GPIO_VX855
453         tristate "VIA VX855/VX875 GPIO"
454         depends on (X86 || COMPILE_TEST) && PCI
455         select MFD_CORE
456         select MFD_VX855
457         help
458           Support access to the VX855/VX875 GPIO lines through the gpio library.
459 
460           This driver provides common support for accessing the device,
461           additional drivers must be enabled in order to use the
462           functionality of the device.
463 
464 config GPIO_XGENE
465         bool "APM X-Gene GPIO controller support"
466         depends on ARM64 && OF_GPIO
467         help
468           This driver is to support the GPIO block within the APM X-Gene SoC
469           platform's generic flash controller. The GPIO pins are muxed with
470           the generic flash controller's address and data pins. Say yes
471           here to enable the GFC GPIO functionality.
472 
473 config GPIO_XGENE_SB
474         tristate "APM X-Gene GPIO standby controller support"
475         depends on ARCH_XGENE && OF_GPIO
476         select GPIO_GENERIC
477         select GPIOLIB_IRQCHIP
478         help
479           This driver supports the GPIO block within the APM X-Gene
480           Standby Domain. Say yes here to enable the GPIO functionality.
481 
482 config GPIO_XILINX
483         tristate "Xilinx GPIO support"
484         depends on OF_GPIO
485         help
486           Say yes here to support the Xilinx FPGA GPIO device
487 
488 config GPIO_XLP
489         tristate "Netlogic XLP GPIO support"
490         depends on OF_GPIO && (CPU_XLP || ARCH_VULCAN || COMPILE_TEST)
491         select GPIOLIB_IRQCHIP
492         help
493           This driver provides support for GPIO interface on Netlogic XLP MIPS64
494           SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
495           XLP9XX and XLP5XX.
496 
497           If unsure, say N.
498 
499 config GPIO_XTENSA
500         bool "Xtensa GPIO32 support"
501         depends on XTENSA
502         depends on HAVE_XTENSA_GPIO32
503         depends on !SMP
504         help
505           Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
506           and EXPSTATE (output) ports
507 
508 config GPIO_ZEVIO
509         bool "LSI ZEVIO SoC memory mapped GPIOs"
510         depends on ARM && OF_GPIO
511         help
512           Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
513 
514 config GPIO_ZYNQ
515         tristate "Xilinx Zynq GPIO support"
516         depends on ARCH_ZYNQ || ARCH_ZYNQMP
517         select GPIOLIB_IRQCHIP
518         help
519           Say yes here to support Xilinx Zynq GPIO controller.
520 
521 config GPIO_ZX
522         bool "ZTE ZX GPIO support"
523         depends on ARCH_ZX || COMPILE_TEST
524         select GPIOLIB_IRQCHIP
525         help
526           Say yes here to support the GPIO device on ZTE ZX SoCs.
527 
528 config GPIO_LOONGSON1
529         tristate "Loongson1 GPIO support"
530         depends on MACH_LOONGSON32
531         select GPIO_GENERIC
532         help
533           Say Y or M here to support GPIO on Loongson1 SoCs.
534 
535 endmenu
536 
537 menu "Port-mapped I/O GPIO drivers"
538         depends on X86 # Unconditional I/O space access
539 
540 config GPIO_104_DIO_48E
541         tristate "ACCES 104-DIO-48E GPIO support"
542         depends on ISA_BUS_API
543         select GPIOLIB_IRQCHIP
544         help
545           Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
546           104-DIO-24E). The base port addresses for the devices may be
547           configured via the base module parameter. The interrupt line numbers
548           for the devices may be configured via the irq module parameter.
549 
550 config GPIO_104_IDIO_16
551         tristate "ACCES 104-IDIO-16 GPIO support"
552         depends on ISA_BUS_API
553         select GPIOLIB_IRQCHIP
554         help
555           Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
556           104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
557           base port addresses for the devices may be configured via the base
558           module parameter. The interrupt line numbers for the devices may be
559           configured via the irq module parameter.
560 
561 config GPIO_104_IDI_48
562         tristate "ACCES 104-IDI-48 GPIO support"
563         depends on ISA_BUS_API
564         select GPIOLIB_IRQCHIP
565         help
566           Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
567           104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
568           the devices may be configured via the base module parameter. The
569           interrupt line numbers for the devices may be configured via the irq
570           module parameter.
571 
572 config GPIO_F7188X
573         tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
574         help
575           This option enables support for GPIOs found on Fintek Super-I/O
576           chips F71869, F71869A, F71882FG, F71889F and F81866.
577 
578           To compile this driver as a module, choose M here: the module will
579           be called f7188x-gpio.
580 
581 config GPIO_GPIO_MM
582         tristate "Diamond Systems GPIO-MM GPIO support"
583         depends on ISA_BUS_API
584         help
585           Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
586 
587           The Diamond Systems GPIO-MM device features 48 lines of digital I/O
588           via the emulation of dual 82C55A PPI chips. This driver provides GPIO
589           support for these 48 channels of digital I/O.
590 
591           The base port addresses for the devices may be configured via the base
592           array module parameter.
593 
594 config GPIO_IT87
595         tristate "IT87xx GPIO support"
596         help
597           Say yes here to support GPIO functionality of IT87xx Super I/O chips.
598 
599           This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
600           supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
601 
602           To compile this driver as a module, choose M here: the module will
603           be called gpio_it87
604 
605 config GPIO_SCH
606         tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
607         depends on (X86 || COMPILE_TEST) && PCI
608         select MFD_CORE
609         select LPC_SCH
610         help
611           Say yes here to support GPIO interface on Intel Poulsbo SCH,
612           Intel Tunnel Creek processor, Intel Centerton processor or
613           Intel Quark X1000 SoC.
614 
615           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
616           powered by the core power rail and are turned off during sleep
617           modes (S3 and higher). The remaining four GPIOs are powered by
618           the Intel SCH suspend power supply. These GPIOs remain
619           active during S3. The suspend powered GPIOs can be used to wake the
620           system from the Suspend-to-RAM state.
621 
622           The Intel Tunnel Creek processor has 5 GPIOs powered by the
623           core power rail and 9 from suspend power supply.
624 
625           The Intel Centerton processor has a total of 30 GPIO pins.
626           Twenty-one are powered by the core power rail and 9 from the
627           suspend power supply.
628 
629           The Intel Quark X1000 SoC has 2 GPIOs powered by the core
630           power well and 6 from the suspend power well.
631 
632 config GPIO_SCH311X
633         tristate "SMSC SCH311x SuperI/O GPIO"
634         help
635           Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
636           SCH3116 "Super I/O" chipsets.
637 
638           To compile this driver as a module, choose M here: the module will
639           be called gpio-sch311x.
640 
641 config GPIO_TS5500
642         tristate "TS-5500 DIO blocks and compatibles"
643         depends on TS5500 || COMPILE_TEST
644         help
645           This driver supports Digital I/O exposed by pin blocks found on some
646           Technologic Systems platforms. It includes, but is not limited to, 3
647           blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
648           LCD port.
649 
650 config GPIO_WS16C48
651         tristate "WinSystems WS16C48 GPIO support"
652         depends on ISA_BUS_API
653         select GPIOLIB_IRQCHIP
654         help
655           Enables GPIO support for the WinSystems WS16C48. The base port
656           addresses for the devices may be configured via the base module
657           parameter. The interrupt line numbers for the devices may be
658           configured via the irq module parameter.
659 
660 endmenu
661 
662 menu "I2C GPIO expanders"
663         depends on I2C
664 
665 config GPIO_ADP5588
666         tristate "ADP5588 I2C GPIO expander"
667         help
668           This option enables support for 18 GPIOs found
669           on Analog Devices ADP5588 GPIO Expanders.
670 
671 config GPIO_ADP5588_IRQ
672         bool "Interrupt controller support for ADP5588"
673         depends on GPIO_ADP5588=y
674         help
675           Say yes here to enable the adp5588 to be used as an interrupt
676           controller. It requires the driver to be built in the kernel.
677 
678 config GPIO_ADNP
679         tristate "Avionic Design N-bit GPIO expander"
680         depends on OF_GPIO
681         select GPIOLIB_IRQCHIP
682         help
683           This option enables support for N GPIOs found on Avionic Design
684           I2C GPIO expanders. The register space will be extended by powers
685           of two, so the controller will need to accommodate for that. For
686           example: if a controller provides 48 pins, 6 registers will be
687           enough to represent all pins, but the driver will assume a
688           register layout for 64 pins (8 registers).
689 
690 config GPIO_MAX7300
691         tristate "Maxim MAX7300 GPIO expander"
692         select GPIO_MAX730X
693         help
694           GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
695 
696 config GPIO_MAX732X
697         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
698         help
699           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
700           Port Expanders. Each IO port on these chips has a fixed role of
701           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
702           Input and Output (designed by 'P'). The combinations are listed
703           below:
704 
705           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
706                         max7322 (4I4O), max7323 (4P4O)
707 
708           16 bits:      max7324 (8I8O), max7325 (8P8O),
709                         max7326 (4I12O), max7327 (4P12O)
710 
711           Board setup code must specify the model to use, and the start
712           number for these GPIOs.
713 
714 config GPIO_MAX732X_IRQ
715         bool "Interrupt controller support for MAX732x"
716         depends on GPIO_MAX732X=y
717         select GPIOLIB_IRQCHIP
718         help
719           Say yes here to enable the max732x to be used as an interrupt
720           controller. It requires the driver to be built in the kernel.
721 
722 config GPIO_MC9S08DZ60
723         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
724         depends on I2C=y && MACH_MX35_3DS
725         help
726           Select this to enable the MC9S08DZ60 GPIO driver
727 
728 config GPIO_PCA953X
729         tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
730         help
731           Say yes here to provide access to several register-oriented
732           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
733           models include:
734 
735           4 bits:       pca9536, pca9537
736 
737           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
738                         pca9556, pca9557, pca9574, tca6408, xra1202
739 
740           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
741                         tca6416
742 
743           24 bits:      tca6424
744 
745           40 bits:      pca9505, pca9698
746 
747 config GPIO_PCA953X_IRQ
748         bool "Interrupt controller support for PCA953x"
749         depends on GPIO_PCA953X=y
750         select GPIOLIB_IRQCHIP
751         help
752           Say yes here to enable the pca953x to be used as an interrupt
753           controller. It requires the driver to be built in the kernel.
754 
755 config GPIO_PCF857X
756         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
757         select GPIOLIB_IRQCHIP
758         select IRQ_DOMAIN
759         help
760           Say yes here to provide access to most "quasi-bidirectional" I2C
761           GPIO expanders used for additional digital outputs or inputs.
762           Most of these parts are from NXP, though TI is a second source for
763           some of them.  Compatible models include:
764 
765           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
766                     pca9670, pca9672, pca9674, pca9674a,
767                     max7328, max7329
768 
769           16 bits:  pcf8575, pcf8575c, pca8575,
770                     pca9671, pca9673, pca9675
771 
772           Your board setup code will need to declare the expanders in
773           use, and assign numbers to the GPIOs they expose.  Those GPIOs
774           can then be used from drivers and other kernel code, just like
775           other GPIOs, but only accessible from task contexts.
776 
777           This driver provides an in-kernel interface to those GPIOs using
778           platform-neutral GPIO calls.
779 
780 config GPIO_SX150X
781         bool "Semtech SX150x I2C GPIO expander (deprecated)"
782         depends on PINCTRL && I2C=y
783         select PINCTRL_SX150X
784         default n
785         help
786           Say yes here to provide support for Semtech SX150x-series I2C
787           GPIO expanders. The GPIO driver was replaced by a Pinctrl version.
788 
789 config GPIO_TPIC2810
790         tristate "TPIC2810 8-Bit I2C GPO expander"
791         help
792           Say yes here to enable the GPO driver for the TI TPIC2810 chip.
793 
794           To compile this driver as a module, choose M here: the module will
795           be called gpio-tpic2810.
796 
797 config GPIO_TS4900
798         tristate "Technologic Systems FPGA I2C GPIO"
799         depends on SOC_IMX6 || COMPILE_TEST
800         select REGMAP_I2C
801         help
802           Say yes here to enabled the GPIO driver for Technologic's FPGA core.
803           Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
804 
805 endmenu
806 
807 menu "MFD GPIO expanders"
808 
809 config GPIO_ADP5520
810         tristate "GPIO Support for ADP5520 PMIC"
811         depends on PMIC_ADP5520
812         help
813           This option enables support for on-chip GPIO found
814           on Analog Devices ADP5520 PMICs.
815 
816 config GPIO_ALTERA_A10SR
817         tristate "Altera Arria10 System Resource GPIO"
818         depends on MFD_ALTERA_A10SR
819         help
820           Driver for Arria10 Development Kit GPIO expansion which
821           includes reads of pushbuttons and DIP switches as well
822           as writes to LEDs.
823 
824 config GPIO_ARIZONA
825         tristate "Wolfson Microelectronics Arizona class devices"
826         depends on MFD_ARIZONA
827         help
828           Support for GPIOs on Wolfson Arizona class devices.
829 
830 config GPIO_CRYSTAL_COVE
831         tristate "GPIO support for Crystal Cove PMIC"
832         depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
833         select GPIOLIB_IRQCHIP
834         help
835           Support for GPIO pins on Crystal Cove PMIC.
836 
837           Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
838           inside.
839 
840           This driver can also be built as a module. If so, the module will be
841           called gpio-crystalcove.
842 
843 config GPIO_CS5535
844         tristate "AMD CS5535/CS5536 GPIO support"
845         depends on X86 || MIPS || COMPILE_TEST
846         depends on MFD_CS5535
847         help
848           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
849           can be used for quite a number of things.  The CS5535/6 is found on
850           AMD Geode and Lemote Yeeloong devices.
851 
852           If unsure, say N.
853 
854 config GPIO_DA9052
855         tristate "Dialog DA9052 GPIO"
856         depends on PMIC_DA9052
857         help
858           Say yes here to enable the GPIO driver for the DA9052 chip.
859 
860 config GPIO_DA9055
861         tristate "Dialog Semiconductor DA9055 GPIO"
862         depends on MFD_DA9055
863         help
864           Say yes here to enable the GPIO driver for the DA9055 chip.
865 
866           The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
867           be controller by this driver.
868 
869           If driver is built as a module it will be called gpio-da9055.
870 
871 config GPIO_DLN2
872         tristate "Diolan DLN2 GPIO support"
873         depends on MFD_DLN2
874         select GPIOLIB_IRQCHIP
875 
876         help
877           Select this option to enable GPIO driver for the Diolan DLN2
878           board.
879 
880           This driver can also be built as a module. If so, the module
881           will be called gpio-dln2.
882 
883 config HTC_EGPIO
884         bool "HTC EGPIO support"
885         depends on GPIOLIB && ARM
886         help
887             This driver supports the CPLD egpio chip present on
888             several HTC phones.  It provides basic support for input
889             pins, output pins, and irqs.
890 
891 config GPIO_JANZ_TTL
892         tristate "Janz VMOD-TTL Digital IO Module"
893         depends on MFD_JANZ_CMODIO
894         help
895           This enables support for the Janz VMOD-TTL Digital IO module.
896           This driver provides support for driving the pins in output
897           mode only. Input mode is not supported.
898 
899 config GPIO_KEMPLD
900         tristate "Kontron ETX / COMexpress GPIO"
901         depends on MFD_KEMPLD
902         help
903           This enables support for the PLD GPIO interface on some Kontron ETX
904           and COMexpress (ETXexpress) modules.
905 
906           This driver can also be built as a module. If so, the module will be
907           called gpio-kempld.
908 
909 config GPIO_LP3943
910         tristate "TI/National Semiconductor LP3943 GPIO expander"
911         depends on MFD_LP3943
912         help
913           GPIO driver for LP3943 MFD.
914           LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
915           Open drain outputs are required for this usage.
916 
917 config GPIO_LP873X
918         tristate "TI LP873X GPO"
919         depends on MFD_TI_LP873X
920         help
921           This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
922           on LP873X PMICs.
923 
924           This driver can also be built as a module. If so, the module will be
925           called gpio-lp873x.
926 
927 config GPIO_MAX77620
928         tristate "GPIO support for PMIC MAX77620 and MAX20024"
929         depends on MFD_MAX77620
930         help
931           GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
932           MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
933           driver also provides interrupt support for each of the gpios.
934           Say yes here to enable the max77620 to be used as gpio controller.
935 
936 config GPIO_MSIC
937         bool "Intel MSIC mixed signal gpio support"
938         depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
939         help
940           Enable support for GPIO on intel MSIC controllers found in
941           intel MID devices
942 
943 config GPIO_PALMAS
944         bool "TI PALMAS series PMICs GPIO"
945         depends on MFD_PALMAS
946         help
947           Select this option to enable GPIO driver for the TI PALMAS
948           series chip family.
949 
950 config GPIO_RC5T583
951         bool "RICOH RC5T583 GPIO"
952         depends on MFD_RC5T583
953         help
954           Select this option to enable GPIO driver for the Ricoh RC5T583
955           chip family.
956           This driver provides the support for driving/reading the gpio pins
957           of RC5T583 device through standard gpio library.
958 
959 config GPIO_STMPE
960         bool "STMPE GPIOs"
961         depends on MFD_STMPE
962         depends on OF_GPIO
963         select GPIOLIB_IRQCHIP
964         help
965           This enables support for the GPIOs found on the STMPE I/O
966           Expanders.
967 
968 config GPIO_TC3589X
969         bool "TC3589X GPIOs"
970         depends on MFD_TC3589X
971         depends on OF_GPIO
972         select GPIOLIB_IRQCHIP
973         help
974           This enables support for the GPIOs found on the TC3589X
975           I/O Expander.
976 
977 config GPIO_TIMBERDALE
978         bool "Support for timberdale GPIO IP"
979         depends on MFD_TIMBERDALE
980         ---help---
981         Add support for the GPIO IP in the timberdale FPGA.
982 
983 config GPIO_TPS65086
984         tristate "TI TPS65086 GPO"
985         depends on MFD_TPS65086
986         help
987           This driver supports the GPO on TI TPS65086x PMICs.
988 
989 config GPIO_TPS65218
990         tristate "TPS65218 GPIO"
991         depends on MFD_TPS65218
992         help
993           Select this option to enable GPIO driver for the TPS65218
994           chip family.
995 
996 config GPIO_TPS6586X
997         bool "TPS6586X GPIO"
998         depends on MFD_TPS6586X
999         help
1000           Select this option to enable GPIO driver for the TPS6586X
1001           chip family.
1002 
1003 config GPIO_TPS65910
1004         bool "TPS65910 GPIO"
1005         depends on MFD_TPS65910
1006         help
1007           Select this option to enable GPIO driver for the TPS65910
1008           chip family.
1009 
1010 config GPIO_TPS65912
1011         tristate "TI TPS65912 GPIO"
1012         depends on MFD_TPS65912
1013         help
1014           This driver supports TPS65912 gpio chip
1015 
1016 config GPIO_TWL4030
1017         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1018         depends on TWL4030_CORE
1019         help
1020           Say yes here to access the GPIO signals of various multi-function
1021           power management chips from Texas Instruments.
1022 
1023 config GPIO_TWL6040
1024         tristate "TWL6040 GPO"
1025         depends on TWL6040_CORE
1026         help
1027           Say yes here to access the GPO signals of twl6040
1028           audio chip from Texas Instruments.
1029 
1030 config GPIO_UCB1400
1031         tristate "Philips UCB1400 GPIO"
1032         depends on UCB1400_CORE
1033         help
1034           This enables support for the Philips UCB1400 GPIO pins.
1035           The UCB1400 is an AC97 audio codec.
1036 
1037 config GPIO_WHISKEY_COVE
1038         tristate "GPIO support for Whiskey Cove PMIC"
1039         depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1040         select GPIOLIB_IRQCHIP
1041         help
1042           Support for GPIO pins on Whiskey Cove PMIC.
1043 
1044           Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1045           inside.
1046 
1047           This driver can also be built as a module. If so, the module will be
1048           called gpio-wcove.
1049 
1050 config GPIO_WM831X
1051         tristate "WM831x GPIOs"
1052         depends on MFD_WM831X
1053         help
1054           Say yes here to access the GPIO signals of WM831x power management
1055           chips from Wolfson Microelectronics.
1056 
1057 config GPIO_WM8350
1058         tristate "WM8350 GPIOs"
1059         depends on MFD_WM8350
1060         help
1061           Say yes here to access the GPIO signals of WM8350 power management
1062           chips from Wolfson Microelectronics.
1063 
1064 config GPIO_WM8994
1065         tristate "WM8994 GPIOs"
1066         depends on MFD_WM8994
1067         help
1068           Say yes here to access the GPIO signals of WM8994 audio hub
1069           CODECs from Wolfson Microelectronics.
1070 
1071 endmenu
1072 
1073 menu "PCI GPIO expanders"
1074         depends on PCI
1075 
1076 config GPIO_AMD8111
1077         tristate "AMD 8111 GPIO driver"
1078         depends on X86 || COMPILE_TEST
1079         help
1080           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1081 
1082           Note, that usually system firmware/ACPI handles GPIO pins on their
1083           own and users might easily break their systems with uncarefull usage
1084           of this driver!
1085 
1086           If unsure, say N
1087 
1088 config GPIO_BT8XX
1089         tristate "BT8XX GPIO abuser"
1090         depends on VIDEO_BT848=n
1091         help
1092           The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1093           as a cheap PCI GPIO card.
1094 
1095           This chip can be found on Miro, Hauppauge and STB TV-cards.
1096 
1097           The card needs to be physically altered for using it as a
1098           GPIO card. For more information on how to build a GPIO card
1099           from a BT8xx TV card, see the documentation file at
1100           Documentation/bt8xxgpio.txt
1101 
1102           If unsure, say N.
1103 
1104 config GPIO_INTEL_MID
1105         bool "Intel MID GPIO support"
1106         depends on X86_INTEL_MID
1107         select GPIOLIB_IRQCHIP
1108         help
1109           Say Y here to support Intel MID GPIO.
1110 
1111 config GPIO_MERRIFIELD
1112         tristate "Intel Merrifield GPIO support"
1113         depends on X86_INTEL_MID
1114         select GPIOLIB_IRQCHIP
1115         help
1116           Say Y here to support Intel Merrifield GPIO.
1117 
1118 config GPIO_ML_IOH
1119         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1120         depends on X86 || COMPILE_TEST
1121         select GENERIC_IRQ_CHIP
1122         help
1123           ML7213 is companion chip for Intel Atom E6xx series.
1124           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1125           Hub) which is for IVI(In-Vehicle Infotainment) use.
1126           This driver can access the IOH's GPIO device.
1127 
1128 config GPIO_PCH
1129         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1130         depends on X86_32 || MIPS || COMPILE_TEST
1131         select GENERIC_IRQ_CHIP
1132         help
1133           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1134           which is an IOH(Input/Output Hub) for x86 embedded processor.
1135           This driver can access PCH GPIO device.
1136 
1137           This driver also can be used for LAPIS Semiconductor IOH(Input/
1138           Output Hub), ML7223 and ML7831.
1139           ML7223 IOH is for MP(Media Phone) use.
1140           ML7831 IOH is for general purpose use.
1141           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1142           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1143 
1144 config GPIO_RDC321X
1145         tristate "RDC R-321x GPIO support"
1146         select MFD_CORE
1147         select MFD_RDC321X
1148         help
1149           Support for the RDC R321x SoC GPIOs over southbridge
1150           PCI configuration space.
1151 
1152 config GPIO_SODAVILLE
1153         bool "Intel Sodaville GPIO support"
1154         depends on X86 && OF
1155         select GPIO_GENERIC
1156         select GENERIC_IRQ_CHIP
1157         help
1158           Say Y here to support Intel Sodaville GPIO.
1159 
1160 endmenu
1161 
1162 menu "SPI GPIO expanders"
1163         depends on SPI_MASTER
1164 
1165 config GPIO_74X164
1166         tristate "74x164 serial-in/parallel-out 8-bits shift register"
1167         depends on OF_GPIO
1168         help
1169           Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1170           shift registers. This driver can be used to provide access
1171           to more gpio outputs.
1172 
1173 config GPIO_MAX7301
1174         tristate "Maxim MAX7301 GPIO expander"
1175         select GPIO_MAX730X
1176         help
1177           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1178 
1179 config GPIO_MC33880
1180         tristate "Freescale MC33880 high-side/low-side switch"
1181         help
1182           SPI driver for Freescale MC33880 high-side/low-side switch.
1183           This provides GPIO interface supporting inputs and outputs.
1184 
1185 config GPIO_PISOSR
1186         tristate "Generic parallel-in/serial-out shift register"
1187         help
1188           GPIO driver for SPI compatible parallel-in/serial-out shift
1189           registers. These are input only devices.
1190 
1191 endmenu
1192 
1193 menu "SPI or I2C GPIO expanders"
1194         depends on (SPI_MASTER && !I2C) || I2C
1195 
1196 config GPIO_MCP23S08
1197         tristate "Microchip MCP23xxx I/O expander"
1198         depends on OF_GPIO
1199         select GPIOLIB_IRQCHIP
1200         help
1201           SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
1202           I/O expanders.
1203           This provides a GPIO interface supporting inputs and outputs.
1204           The I2C versions of the chips can be used as interrupt-controller.
1205 
1206 endmenu
1207 
1208 menu "USB GPIO expanders"
1209         depends on USB
1210 
1211 config GPIO_VIPERBOARD
1212         tristate "Viperboard GPIO a & b support"
1213         depends on MFD_VIPERBOARD
1214         help
1215           Say yes here to access the GPIO signals of Nano River
1216           Technologies Viperboard. There are two GPIO chips on the
1217           board: gpioa and gpiob.
1218           See viperboard API specification and Nano
1219           River Tech's viperboard.h for detailed meaning
1220           of the module parameters.
1221 
1222 endmenu
1223 
1224 endif

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