Version:  2.0.40 2.2.26 2.4.37 3.8 3.9 3.10 3.11 3.12 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

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 config ARCH_WANT_OPTIONAL_GPIOLIB
 14         bool
 15         help
 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.
 22 
 23 config ARCH_REQUIRE_GPIOLIB
 24         bool
 25         select GPIOLIB
 26         help
 27           Platforms select gpiolib if they use this infrastructure
 28           for all their GPIOs, usually starting with ones integrated
 29           into SOC processors.
 30           Selecting this from the architecture code will cause the gpiolib
 31           code to always get built in.
 32 
 33 
 34 menuconfig GPIOLIB
 35         bool "GPIO Support"
 36         depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB
 37         help
 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.
 41 
 42           If unsure, say N.
 43 
 44 if GPIOLIB
 45 
 46 config GPIO_DEVRES
 47         def_bool y
 48         depends on HAS_IOMEM
 49 
 50 config OF_GPIO
 51         def_bool y
 52         depends on OF
 53 
 54 config GPIO_ACPI
 55         def_bool y
 56         depends on ACPI
 57 
 58 config GPIOLIB_IRQCHIP
 59         select IRQ_DOMAIN
 60         bool
 61 
 62 config DEBUG_GPIO
 63         bool "Debug GPIO calls"
 64         depends on DEBUG_KERNEL
 65         help
 66           Say Y here to add some extra checks and diagnostics to GPIO calls.
 67           These checks help ensure that GPIOs have been properly initialized
 68           before they are used, and that sleeping calls are not made from
 69           non-sleeping contexts.  They can make bitbanged serial protocols
 70           slower.  The diagnostics help catch the type of setup errors
 71           that are most common when setting up new platforms or boards.
 72 
 73 config GPIO_SYSFS
 74         bool "/sys/class/gpio/... (sysfs interface)"
 75         depends on SYSFS
 76         help
 77           Say Y here to add a sysfs interface for GPIOs.
 78 
 79           This is mostly useful to work around omissions in a system's
 80           kernel support.  Those are common in custom and semicustom
 81           hardware assembled using standard kernels with a minimum of
 82           custom patches.  In those cases, userspace code may import
 83           a given GPIO from the kernel, if no kernel driver requested it.
 84 
 85           Kernel drivers may also request that a particular GPIO be
 86           exported to userspace; this can be useful when debugging.
 87 
 88 config GPIO_GENERIC
 89         tristate
 90 
 91 # put drivers in the right section, in alphabetical order
 92 
 93 # This symbol is selected by both I2C and SPI expanders
 94 config GPIO_MAX730X
 95         tristate
 96 
 97 menu "Memory mapped GPIO drivers"
 98 
 99 config GPIO_74XX_MMIO
100         tristate "GPIO driver for 74xx-ICs with MMIO access"
101         depends on OF_GPIO
102         select GPIO_GENERIC
103         help
104           Say yes here to support GPIO functionality for 74xx-compatible ICs
105           with MMIO access. Compatible models include:
106             1 bit:      741G125 (Input), 741G74 (Output)
107             2 bits:     742G125 (Input), 7474 (Output)
108             4 bits:     74125 (Input), 74175 (Output)
109             6 bits:     74365 (Input), 74174 (Output)
110             8 bits:     74244 (Input), 74273 (Output)
111             16 bits:    741624 (Input), 7416374 (Output)
112 
113 config GPIO_ALTERA
114         tristate "Altera GPIO"
115         depends on OF_GPIO
116         select GPIOLIB_IRQCHIP
117         help
118           Say Y or M here to build support for the Altera PIO device.
119 
120           If driver is built as a module it will be called gpio-altera.
121 
122 config GPIO_AMDPT
123         tristate "AMD Promontory GPIO support"
124         depends on ACPI
125         help
126           driver for GPIO functionality on Promontory IOHub
127           Require ACPI ASL code to enumerate as a platform device.
128 
129 config GPIO_BCM_KONA
130         bool "Broadcom Kona GPIO"
131         depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
132         help
133           Turn on GPIO support for Broadcom "Kona" chips.
134 
135 config GPIO_BRCMSTB
136         tristate "BRCMSTB GPIO support"
137         default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
138         depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
139         select GPIO_GENERIC
140         select GPIOLIB_IRQCHIP
141         help
142           Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
143 
144 config GPIO_CLPS711X
145         tristate "CLPS711X GPIO support"
146         depends on ARCH_CLPS711X || COMPILE_TEST
147         select GPIO_GENERIC
148         help
149           Say yes here to support GPIO on CLPS711X SoCs.
150 
151 config GPIO_DAVINCI
152         bool "TI Davinci/Keystone GPIO support"
153         default y if ARCH_DAVINCI
154         depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
155         help
156           Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
157 
158 config GPIO_DWAPB
159         tristate "Synopsys DesignWare APB GPIO driver"
160         select GPIO_GENERIC
161         select GENERIC_IRQ_CHIP
162         help
163           Say Y or M here to build support for the Synopsys DesignWare APB
164           GPIO block.
165 
166 config GPIO_EM
167         tristate "Emma Mobile GPIO"
168         depends on ARM && OF_GPIO
169         help
170           Say yes here to support GPIO on Renesas Emma Mobile SoCs.
171 
172 config GPIO_EP93XX
173         def_bool y
174         depends on ARCH_EP93XX
175         select GPIO_GENERIC
176 
177 config GPIO_ETRAXFS
178         bool "Axis ETRAX FS General I/O"
179         depends on CRIS || COMPILE_TEST
180         depends on OF
181         select GPIO_GENERIC
182         select GPIOLIB_IRQCHIP
183         help
184           Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.
185 
186 config GPIO_GE_FPGA
187         bool "GE FPGA based GPIO"
188         depends on GE_FPGA
189         select GPIO_GENERIC
190         help
191           Support for common GPIO functionality provided on some GE Single Board
192           Computers.
193 
194           This driver provides basic support (configure as input or output, read
195           and write pin state) for GPIO implemented in a number of GE single
196           board computers.
197 
198 config GPIO_GENERIC_PLATFORM
199         tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
200         select GPIO_GENERIC
201         help
202           Say yes here to support basic platform_device memory-mapped GPIO controllers.
203 
204 config GPIO_GRGPIO
205         tristate "Aeroflex Gaisler GRGPIO support"
206         depends on OF
207         select GPIO_GENERIC
208         select IRQ_DOMAIN
209         help
210           Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
211           VHDL IP core library.
212 
213 config GPIO_ICH
214         tristate "Intel ICH GPIO"
215         depends on PCI && X86
216         select MFD_CORE
217         select LPC_ICH
218         help
219           Say yes here to support the GPIO functionality of a number of Intel
220           ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
221           ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
222           Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
223 
224           If unsure, say N.
225 
226 config GPIO_IOP
227         tristate "Intel IOP GPIO"
228         depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
229         help
230           Say yes here to support the GPIO functionality of a number of Intel
231           IOP32X or IOP33X.
232 
233           If unsure, say N.
234 
235 config GPIO_LOONGSON
236         bool "Loongson-2/3 GPIO support"
237         depends on CPU_LOONGSON2 || CPU_LOONGSON3
238         help
239           driver for GPIO functionality on Loongson-2F/3A/3B processors.
240 
241 config GPIO_LPC18XX
242         bool "NXP LPC18XX/43XX GPIO support"
243         default y if ARCH_LPC18XX
244         depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
245         help
246           Select this option to enable GPIO driver for
247           NXP LPC18XX/43XX devices.
248 
249 config GPIO_LYNXPOINT
250         tristate "Intel Lynxpoint GPIO support"
251         depends on ACPI && X86
252         select GPIOLIB_IRQCHIP
253         help
254           driver for GPIO functionality on Intel Lynxpoint PCH chipset
255           Requires ACPI device enumeration code to set up a platform device.
256 
257 config GPIO_MB86S7X
258         bool "GPIO support for Fujitsu MB86S7x Platforms"
259         depends on ARCH_MB86S7X
260         help
261           Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
262 
263 config GPIO_MM_LANTIQ
264         bool "Lantiq Memory mapped GPIOs"
265         depends on LANTIQ && SOC_XWAY
266         help
267           This enables support for memory mapped GPIOs on the External Bus Unit
268           (EBU) found on Lantiq SoCs. The gpios are output only as they are
269           created by attaching a 16bit latch to the bus.
270 
271 config GPIO_MOXART
272         bool "MOXART GPIO support"
273         depends on ARCH_MOXART
274         select GPIO_GENERIC
275         help
276           Select this option to enable GPIO driver for
277           MOXA ART SoC devices.
278 
279 config GPIO_MPC5200
280         def_bool y
281         depends on PPC_MPC52xx
282 
283 config GPIO_MPC8XXX
284         bool "MPC512x/MPC8xxx GPIO support"
285         depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
286                    FSL_SOC_BOOKE || PPC_86xx
287         help
288           Say Y here if you're going to use hardware that connects to the
289           MPC512x/831x/834x/837x/8572/8610 GPIOs.
290 
291 config GPIO_MVEBU
292         def_bool y
293         depends on PLAT_ORION
294         depends on OF
295         select GENERIC_IRQ_CHIP
296 
297 config GPIO_MXC
298         def_bool y
299         depends on ARCH_MXC
300         select GPIO_GENERIC
301         select GENERIC_IRQ_CHIP
302 
303 config GPIO_MXS
304         def_bool y
305         depends on ARCH_MXS
306         select GPIO_GENERIC
307         select GENERIC_IRQ_CHIP
308 
309 config GPIO_OCTEON
310         tristate "Cavium OCTEON GPIO"
311         depends on GPIOLIB && CAVIUM_OCTEON_SOC
312         default y
313         help
314           Say yes here to support the on-chip GPIO lines on the OCTEON
315           family of SOCs.
316 
317 config GPIO_OMAP
318         tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
319         default y if ARCH_OMAP
320         depends on ARM
321         select GENERIC_IRQ_CHIP
322         select GPIOLIB_IRQCHIP
323         help
324           Say yes here to enable GPIO support for TI OMAP SoCs.
325 
326 config GPIO_PL061
327         bool "PrimeCell PL061 GPIO support"
328         depends on ARM_AMBA
329         select IRQ_DOMAIN
330         select GPIOLIB_IRQCHIP
331         help
332           Say yes here to support the PrimeCell PL061 GPIO device
333 
334 config GPIO_PXA
335         bool "PXA GPIO support"
336         depends on ARCH_PXA || ARCH_MMP
337         help
338           Say yes here to support the PXA GPIO device
339 
340 config GPIO_RCAR
341         tristate "Renesas R-Car GPIO"
342         depends on ARCH_SHMOBILE || COMPILE_TEST
343         select GPIOLIB_IRQCHIP
344         help
345           Say yes here to support GPIO on Renesas R-Car SoCs.
346 
347 config GPIO_SPEAR_SPICS
348         bool "ST SPEAr13xx SPI Chip Select as GPIO support"
349         depends on PLAT_SPEAR
350         select GENERIC_IRQ_CHIP
351         help
352           Say yes here to support ST SPEAr SPI Chip Select as GPIO device
353 
354 config GPIO_STA2X11
355         bool "STA2x11/ConneXt GPIO support"
356         depends on MFD_STA2X11
357         select GENERIC_IRQ_CHIP
358         help
359           Say yes here to support the STA2x11/ConneXt GPIO device.
360           The GPIO module has 128 GPIO pins with alternate functions.
361 
362 config GPIO_STP_XWAY
363         bool "XWAY STP GPIOs"
364         depends on SOC_XWAY
365         help
366           This enables support for the Serial To Parallel (STP) unit found on
367           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
368           that can be up to 24 bit. This peripheral is aimed at driving leds.
369           Some of the gpios/leds can be auto updated by the soc with dsl and
370           phy status.
371 
372 config GPIO_SYSCON
373         tristate "GPIO based on SYSCON"
374         depends on MFD_SYSCON && OF
375         help
376           Say yes here to support GPIO functionality though SYSCON driver.
377 
378 config GPIO_TB10X
379         bool
380         select GENERIC_IRQ_CHIP
381         select OF_GPIO
382 
383 config GPIO_TZ1090
384         bool "Toumaz Xenif TZ1090 GPIO support"
385         depends on SOC_TZ1090
386         select GENERIC_IRQ_CHIP
387         default y
388         help
389           Say yes here to support Toumaz Xenif TZ1090 GPIOs.
390 
391 config GPIO_TZ1090_PDC
392         bool "Toumaz Xenif TZ1090 PDC GPIO support"
393         depends on SOC_TZ1090
394         default y
395         help
396           Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
397 
398 config GPIO_VF610
399         def_bool y
400         depends on ARCH_MXC && SOC_VF610
401         select GPIOLIB_IRQCHIP
402         help
403           Say yes here to support Vybrid vf610 GPIOs.
404 
405 config GPIO_VR41XX
406         tristate "NEC VR4100 series General-purpose I/O Uint support"
407         depends on CPU_VR41XX
408         help
409           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
410 
411 config GPIO_VX855
412         tristate "VIA VX855/VX875 GPIO"
413         depends on PCI
414         select MFD_CORE
415         select MFD_VX855
416         help
417           Support access to the VX855/VX875 GPIO lines through the gpio library.
418 
419           This driver provides common support for accessing the device,
420           additional drivers must be enabled in order to use the
421           functionality of the device.
422 
423 config GPIO_XGENE
424         bool "APM X-Gene GPIO controller support"
425         depends on ARM64 && OF_GPIO
426         help
427           This driver is to support the GPIO block within the APM X-Gene SoC
428           platform's generic flash controller. The GPIO pins are muxed with
429           the generic flash controller's address and data pins. Say yes
430           here to enable the GFC GPIO functionality.
431 
432 config GPIO_XGENE_SB
433         tristate "APM X-Gene GPIO standby controller support"
434         depends on ARCH_XGENE && OF_GPIO
435         select GPIO_GENERIC
436         help
437           This driver supports the GPIO block within the APM X-Gene
438           Standby Domain. Say yes here to enable the GPIO functionality.
439 
440 config GPIO_XILINX
441         tristate "Xilinx GPIO support"
442         depends on OF_GPIO
443         help
444           Say yes here to support the Xilinx FPGA GPIO device
445 
446 config GPIO_XLP
447         tristate "Netlogic XLP GPIO support"
448         depends on CPU_XLP && OF_GPIO
449         select GPIOLIB_IRQCHIP
450         help
451           This driver provides support for GPIO interface on Netlogic XLP MIPS64
452           SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
453           XLP9XX and XLP5XX.
454 
455           If unsure, say N.
456 
457 config GPIO_XTENSA
458         bool "Xtensa GPIO32 support"
459         depends on XTENSA
460         depends on HAVE_XTENSA_GPIO32
461         depends on !SMP
462         help
463           Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
464           and EXPSTATE (output) ports
465 
466 config GPIO_ZEVIO
467         bool "LSI ZEVIO SoC memory mapped GPIOs"
468         depends on ARM && OF_GPIO
469         help
470           Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
471 
472 config GPIO_ZYNQ
473         tristate "Xilinx Zynq GPIO support"
474         depends on ARCH_ZYNQ || ARCH_ZYNQMP
475         select GPIOLIB_IRQCHIP
476         help
477           Say yes here to support Xilinx Zynq GPIO controller.
478 
479 config GPIO_ZX
480         bool "ZTE ZX GPIO support"
481         select GPIOLIB_IRQCHIP
482         help
483           Say yes here to support the GPIO device on ZTE ZX SoCs.
484 
485 endmenu
486 
487 menu "Port-mapped I/O GPIO drivers"
488         depends on X86 # Unconditional I/O space access
489 
490 config GPIO_104_IDIO_16
491         tristate "ACCES 104-IDIO-16 GPIO support"
492         select GPIOLIB_IRQCHIP
493         help
494           Enables GPIO support for the ACCES 104-IDIO-16 family. The base port
495           address for the device may be set via the idio_16_base module
496           parameter. The interrupt line number for the device may be set via the
497           idio_16_irq module parameter.
498 
499 config GPIO_104_IDI_48
500         tristate "ACCES 104-IDI-48 GPIO support"
501         select GPIOLIB_IRQCHIP
502         help
503           Enables GPIO support for the ACCES 104-IDI-48 family. The base port
504           address for the device may be configured via the idi_48_base module
505           parameter. The interrupt line number for the device may be configured
506           via the idi_48_irq module parameter.
507 
508 config GPIO_F7188X
509         tristate "F71869, F71869A, F71882FG and F71889F GPIO support"
510         help
511           This option enables support for GPIOs found on Fintek Super-I/O
512           chips F71869, F71869A, F71882FG and F71889F.
513 
514           To compile this driver as a module, choose M here: the module will
515           be called f7188x-gpio.
516 
517 config GPIO_IT87
518         tristate "IT87xx GPIO support"
519         help
520           Say yes here to support GPIO functionality of IT87xx Super I/O chips.
521 
522           This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
523           supports the IT8761E Super I/O chip as well.
524 
525           To compile this driver as a module, choose M here: the module will
526           be called gpio_it87
527 
528 config GPIO_SCH
529         tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
530         depends on PCI
531         select MFD_CORE
532         select LPC_SCH
533         help
534           Say yes here to support GPIO interface on Intel Poulsbo SCH,
535           Intel Tunnel Creek processor, Intel Centerton processor or
536           Intel Quark X1000 SoC.
537 
538           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
539           powered by the core power rail and are turned off during sleep
540           modes (S3 and higher). The remaining four GPIOs are powered by
541           the Intel SCH suspend power supply. These GPIOs remain
542           active during S3. The suspend powered GPIOs can be used to wake the
543           system from the Suspend-to-RAM state.
544 
545           The Intel Tunnel Creek processor has 5 GPIOs powered by the
546           core power rail and 9 from suspend power supply.
547 
548           The Intel Centerton processor has a total of 30 GPIO pins.
549           Twenty-one are powered by the core power rail and 9 from the
550           suspend power supply.
551 
552           The Intel Quark X1000 SoC has 2 GPIOs powered by the core
553           power well and 6 from the suspend power well.
554 
555 config GPIO_SCH311X
556         tristate "SMSC SCH311x SuperI/O GPIO"
557         help
558           Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
559           SCH3116 "Super I/O" chipsets.
560 
561           To compile this driver as a module, choose M here: the module will
562           be called gpio-sch311x.
563 
564 config GPIO_TS5500
565         tristate "TS-5500 DIO blocks and compatibles"
566         depends on TS5500 || COMPILE_TEST
567         help
568           This driver supports Digital I/O exposed by pin blocks found on some
569           Technologic Systems platforms. It includes, but is not limited to, 3
570           blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
571           LCD port.
572 
573 endmenu
574 
575 menu "I2C GPIO expanders"
576         depends on I2C
577 
578 config GPIO_ADP5588
579         tristate "ADP5588 I2C GPIO expander"
580         help
581           This option enables support for 18 GPIOs found
582           on Analog Devices ADP5588 GPIO Expanders.
583 
584 config GPIO_ADP5588_IRQ
585         bool "Interrupt controller support for ADP5588"
586         depends on GPIO_ADP5588=y
587         help
588           Say yes here to enable the adp5588 to be used as an interrupt
589           controller. It requires the driver to be built in the kernel.
590 
591 config GPIO_ADNP
592         tristate "Avionic Design N-bit GPIO expander"
593         depends on OF_GPIO
594         select GPIOLIB_IRQCHIP
595         help
596           This option enables support for N GPIOs found on Avionic Design
597           I2C GPIO expanders. The register space will be extended by powers
598           of two, so the controller will need to accommodate for that. For
599           example: if a controller provides 48 pins, 6 registers will be
600           enough to represent all pins, but the driver will assume a
601           register layout for 64 pins (8 registers).
602 
603 config GPIO_MAX7300
604         tristate "Maxim MAX7300 GPIO expander"
605         select GPIO_MAX730X
606         help
607           GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
608 
609 config GPIO_MAX732X
610         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
611         help
612           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
613           Port Expanders. Each IO port on these chips has a fixed role of
614           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
615           Input and Output (designed by 'P'). The combinations are listed
616           below:
617 
618           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
619                         max7322 (4I4O), max7323 (4P4O)
620 
621           16 bits:      max7324 (8I8O), max7325 (8P8O),
622                         max7326 (4I12O), max7327 (4P12O)
623 
624           Board setup code must specify the model to use, and the start
625           number for these GPIOs.
626 
627 config GPIO_MAX732X_IRQ
628         bool "Interrupt controller support for MAX732x"
629         depends on GPIO_MAX732X=y
630         select GPIOLIB_IRQCHIP
631         help
632           Say yes here to enable the max732x to be used as an interrupt
633           controller. It requires the driver to be built in the kernel.
634 
635 config GPIO_MC9S08DZ60
636         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
637         depends on I2C=y && MACH_MX35_3DS
638         help
639           Select this to enable the MC9S08DZ60 GPIO driver
640 
641 config GPIO_PCA953X
642         tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
643         help
644           Say yes here to provide access to several register-oriented
645           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
646           models include:
647 
648           4 bits:       pca9536, pca9537
649 
650           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
651                         pca9556, pca9557, pca9574, tca6408, xra1202
652 
653           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
654                         tca6416
655 
656           24 bits:      tca6424
657 
658           40 bits:      pca9505, pca9698
659 
660 config GPIO_PCA953X_IRQ
661         bool "Interrupt controller support for PCA953x"
662         depends on GPIO_PCA953X=y
663         select GPIOLIB_IRQCHIP
664         help
665           Say yes here to enable the pca953x to be used as an interrupt
666           controller. It requires the driver to be built in the kernel.
667 
668 config GPIO_PCF857X
669         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
670         select GPIOLIB_IRQCHIP
671         select IRQ_DOMAIN
672         help
673           Say yes here to provide access to most "quasi-bidirectional" I2C
674           GPIO expanders used for additional digital outputs or inputs.
675           Most of these parts are from NXP, though TI is a second source for
676           some of them.  Compatible models include:
677 
678           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
679                     pca9670, pca9672, pca9674, pca9674a,
680                     max7328, max7329
681 
682           16 bits:  pcf8575, pcf8575c, pca8575,
683                     pca9671, pca9673, pca9675
684 
685           Your board setup code will need to declare the expanders in
686           use, and assign numbers to the GPIOs they expose.  Those GPIOs
687           can then be used from drivers and other kernel code, just like
688           other GPIOs, but only accessible from task contexts.
689 
690           This driver provides an in-kernel interface to those GPIOs using
691           platform-neutral GPIO calls.
692 
693 config GPIO_SX150X
694         bool "Semtech SX150x I2C GPIO expander"
695         depends on I2C=y
696         select GPIOLIB_IRQCHIP
697         default n
698         help
699           Say yes here to provide support for Semtech SX150-series I2C
700           GPIO expanders. Compatible models include:
701 
702           8 bits:  sx1508q
703           16 bits: sx1509q
704 
705 endmenu
706 
707 menu "MFD GPIO expanders"
708 
709 config GPIO_ADP5520
710         tristate "GPIO Support for ADP5520 PMIC"
711         depends on PMIC_ADP5520
712         help
713           This option enables support for on-chip GPIO found
714           on Analog Devices ADP5520 PMICs.
715 
716 config GPIO_ARIZONA
717         tristate "Wolfson Microelectronics Arizona class devices"
718         depends on MFD_ARIZONA
719         help
720           Support for GPIOs on Wolfson Arizona class devices.
721 
722 config GPIO_CRYSTAL_COVE
723         tristate "GPIO support for Crystal Cove PMIC"
724         depends on INTEL_SOC_PMIC
725         select GPIOLIB_IRQCHIP
726         help
727           Support for GPIO pins on Crystal Cove PMIC.
728 
729           Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
730           inside.
731 
732           This driver can also be built as a module. If so, the module will be
733           called gpio-crystalcove.
734 
735 config GPIO_CS5535
736         tristate "AMD CS5535/CS5536 GPIO support"
737         depends on MFD_CS5535
738         help
739           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
740           can be used for quite a number of things.  The CS5535/6 is found on
741           AMD Geode and Lemote Yeeloong devices.
742 
743           If unsure, say N.
744 
745 config GPIO_DA9052
746         tristate "Dialog DA9052 GPIO"
747         depends on PMIC_DA9052
748         help
749           Say yes here to enable the GPIO driver for the DA9052 chip.
750 
751 config GPIO_DA9055
752         tristate "Dialog Semiconductor DA9055 GPIO"
753         depends on MFD_DA9055
754         help
755           Say yes here to enable the GPIO driver for the DA9055 chip.
756 
757           The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
758           be controller by this driver.
759 
760           If driver is built as a module it will be called gpio-da9055.
761 
762 config GPIO_DLN2
763         tristate "Diolan DLN2 GPIO support"
764         depends on MFD_DLN2
765         select GPIOLIB_IRQCHIP
766 
767         help
768           Select this option to enable GPIO driver for the Diolan DLN2
769           board.
770 
771           This driver can also be built as a module. If so, the module
772           will be called gpio-dln2.
773 
774 config GPIO_JANZ_TTL
775         tristate "Janz VMOD-TTL Digital IO Module"
776         depends on MFD_JANZ_CMODIO
777         help
778           This enables support for the Janz VMOD-TTL Digital IO module.
779           This driver provides support for driving the pins in output
780           mode only. Input mode is not supported.
781 
782 config GPIO_KEMPLD
783         tristate "Kontron ETX / COMexpress GPIO"
784         depends on MFD_KEMPLD
785         help
786           This enables support for the PLD GPIO interface on some Kontron ETX
787           and COMexpress (ETXexpress) modules.
788 
789           This driver can also be built as a module. If so, the module will be
790           called gpio-kempld.
791 
792 config GPIO_LP3943
793         tristate "TI/National Semiconductor LP3943 GPIO expander"
794         depends on MFD_LP3943
795         help
796           GPIO driver for LP3943 MFD.
797           LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
798           Open drain outputs are required for this usage.
799 
800 config GPIO_MSIC
801         bool "Intel MSIC mixed signal gpio support"
802         depends on MFD_INTEL_MSIC
803         help
804           Enable support for GPIO on intel MSIC controllers found in
805           intel MID devices
806 
807 config GPIO_PALMAS
808         bool "TI PALMAS series PMICs GPIO"
809         depends on MFD_PALMAS
810         help
811           Select this option to enable GPIO driver for the TI PALMAS
812           series chip family.
813 
814 config GPIO_RC5T583
815         bool "RICOH RC5T583 GPIO"
816         depends on MFD_RC5T583
817         help
818           Select this option to enable GPIO driver for the Ricoh RC5T583
819           chip family.
820           This driver provides the support for driving/reading the gpio pins
821           of RC5T583 device through standard gpio library.
822 
823 config GPIO_STMPE
824         bool "STMPE GPIOs"
825         depends on MFD_STMPE
826         depends on OF_GPIO
827         select GPIOLIB_IRQCHIP
828         help
829           This enables support for the GPIOs found on the STMPE I/O
830           Expanders.
831 
832 config GPIO_TC3589X
833         bool "TC3589X GPIOs"
834         depends on MFD_TC3589X
835         depends on OF_GPIO
836         select GPIOLIB_IRQCHIP
837         help
838           This enables support for the GPIOs found on the TC3589X
839           I/O Expander.
840 
841 config GPIO_TIMBERDALE
842         bool "Support for timberdale GPIO IP"
843         depends on MFD_TIMBERDALE
844         ---help---
845         Add support for the GPIO IP in the timberdale FPGA.
846 
847 config GPIO_TPS6586X
848         bool "TPS6586X GPIO"
849         depends on MFD_TPS6586X
850         help
851           Select this option to enable GPIO driver for the TPS6586X
852           chip family.
853 
854 config GPIO_TPS65910
855         bool "TPS65910 GPIO"
856         depends on MFD_TPS65910
857         help
858           Select this option to enable GPIO driver for the TPS65910
859           chip family.
860 
861 config GPIO_TPS65912
862         tristate "TI TPS65912 GPIO"
863         depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
864         help
865           This driver supports TPS65912 gpio chip
866 
867 config GPIO_TWL4030
868         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
869         depends on TWL4030_CORE
870         help
871           Say yes here to access the GPIO signals of various multi-function
872           power management chips from Texas Instruments.
873 
874 config GPIO_TWL6040
875         tristate "TWL6040 GPO"
876         depends on TWL6040_CORE
877         help
878           Say yes here to access the GPO signals of twl6040
879           audio chip from Texas Instruments.
880 
881 config GPIO_UCB1400
882         tristate "Philips UCB1400 GPIO"
883         depends on UCB1400_CORE
884         help
885           This enables support for the Philips UCB1400 GPIO pins.
886           The UCB1400 is an AC97 audio codec.
887 
888 config GPIO_WM831X
889         tristate "WM831x GPIOs"
890         depends on MFD_WM831X
891         help
892           Say yes here to access the GPIO signals of WM831x power management
893           chips from Wolfson Microelectronics.
894 
895 config GPIO_WM8350
896         tristate "WM8350 GPIOs"
897         depends on MFD_WM8350
898         help
899           Say yes here to access the GPIO signals of WM8350 power management
900           chips from Wolfson Microelectronics.
901 
902 config GPIO_WM8994
903         tristate "WM8994 GPIOs"
904         depends on MFD_WM8994
905         help
906           Say yes here to access the GPIO signals of WM8994 audio hub
907           CODECs from Wolfson Microelectronics.
908 
909 endmenu
910 
911 menu "PCI GPIO expanders"
912         depends on PCI
913 
914 config GPIO_AMD8111
915         tristate "AMD 8111 GPIO driver"
916         help
917           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
918 
919           Note, that usually system firmware/ACPI handles GPIO pins on their
920           own and users might easily break their systems with uncarefull usage
921           of this driver!
922 
923           If unsure, say N
924 
925 config GPIO_BT8XX
926         tristate "BT8XX GPIO abuser"
927         depends on VIDEO_BT848=n
928         help
929           The BT8xx frame grabber chip has 24 GPIO pins that can be abused
930           as a cheap PCI GPIO card.
931 
932           This chip can be found on Miro, Hauppauge and STB TV-cards.
933 
934           The card needs to be physically altered for using it as a
935           GPIO card. For more information on how to build a GPIO card
936           from a BT8xx TV card, see the documentation file at
937           Documentation/bt8xxgpio.txt
938 
939           If unsure, say N.
940 
941 config GPIO_INTEL_MID
942         bool "Intel Mid GPIO support"
943         depends on X86
944         select GPIOLIB_IRQCHIP
945         help
946           Say Y here to support Intel Mid GPIO.
947 
948 config GPIO_ML_IOH
949         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
950         select GENERIC_IRQ_CHIP
951         help
952           ML7213 is companion chip for Intel Atom E6xx series.
953           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
954           Hub) which is for IVI(In-Vehicle Infotainment) use.
955           This driver can access the IOH's GPIO device.
956 
957 config GPIO_PCH
958         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
959         depends on X86_32 || MIPS || COMPILE_TEST
960         select GENERIC_IRQ_CHIP
961         help
962           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
963           which is an IOH(Input/Output Hub) for x86 embedded processor.
964           This driver can access PCH GPIO device.
965 
966           This driver also can be used for LAPIS Semiconductor IOH(Input/
967           Output Hub), ML7223 and ML7831.
968           ML7223 IOH is for MP(Media Phone) use.
969           ML7831 IOH is for general purpose use.
970           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
971           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
972 
973 config GPIO_RDC321X
974         tristate "RDC R-321x GPIO support"
975         select MFD_CORE
976         select MFD_RDC321X
977         help
978           Support for the RDC R321x SoC GPIOs over southbridge
979           PCI configuration space.
980 
981 config GPIO_SODAVILLE
982         bool "Intel Sodaville GPIO support"
983         depends on X86 && OF
984         select GPIO_GENERIC
985         select GENERIC_IRQ_CHIP
986         help
987           Say Y here to support Intel Sodaville GPIO.
988 
989 endmenu
990 
991 menu "SPI GPIO expanders"
992         depends on SPI_MASTER
993 
994 config GPIO_74X164
995         tristate "74x164 serial-in/parallel-out 8-bits shift register"
996         depends on OF
997         help
998           Driver for 74x164 compatible serial-in/parallel-out 8-outputs
999           shift registers. This driver can be used to provide access
1000           to more gpio outputs.
1001 
1002 config GPIO_MAX7301
1003         tristate "Maxim MAX7301 GPIO expander"
1004         select GPIO_MAX730X
1005         help
1006           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1007 
1008 config GPIO_MC33880
1009         tristate "Freescale MC33880 high-side/low-side switch"
1010         help
1011           SPI driver for Freescale MC33880 high-side/low-side switch.
1012           This provides GPIO interface supporting inputs and outputs.
1013 
1014 endmenu
1015 
1016 menu "SPI or I2C GPIO expanders"
1017         depends on (SPI_MASTER && !I2C) || I2C
1018 
1019 config GPIO_MCP23S08
1020         tristate "Microchip MCP23xxx I/O expander"
1021         help
1022           SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
1023           I/O expanders.
1024           This provides a GPIO interface supporting inputs and outputs.
1025           The I2C versions of the chips can be used as interrupt-controller.
1026 
1027 endmenu
1028 
1029 menu "USB GPIO expanders"
1030         depends on USB
1031 
1032 config GPIO_VIPERBOARD
1033         tristate "Viperboard GPIO a & b support"
1034         depends on MFD_VIPERBOARD
1035         help
1036           Say yes here to access the GPIO signals of Nano River
1037           Technologies Viperboard. There are two GPIO chips on the
1038           board: gpioa and gpiob.
1039           See viperboard API specification and Nano
1040           River Tech's viperboard.h for detailed meaning
1041           of the module parameters.
1042 
1043 endmenu
1044 
1045 endif

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