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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         select ANON_INODES
 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         depends on HAS_IOMEM
 54 
 55 config GPIO_ACPI
 56         def_bool y
 57         depends on ACPI
 58 
 59 config GPIOLIB_IRQCHIP
 60         select IRQ_DOMAIN
 61         bool
 62 
 63 config DEBUG_GPIO
 64         bool "Debug GPIO calls"
 65         depends on DEBUG_KERNEL
 66         help
 67           Say Y here to add some extra checks and diagnostics to GPIO calls.
 68           These checks help ensure that GPIOs have been properly initialized
 69           before they are used, and that sleeping calls are not made from
 70           non-sleeping contexts.  They can make bitbanged serial protocols
 71           slower.  The diagnostics help catch the type of setup errors
 72           that are most common when setting up new platforms or boards.
 73 
 74 config GPIO_SYSFS
 75         bool "/sys/class/gpio/... (sysfs interface)"
 76         depends on SYSFS
 77         help
 78           Say Y here to add a sysfs interface for GPIOs.
 79 
 80           This is mostly useful to work around omissions in a system's
 81           kernel support.  Those are common in custom and semicustom
 82           hardware assembled using standard kernels with a minimum of
 83           custom patches.  In those cases, userspace code may import
 84           a given GPIO from the kernel, if no kernel driver requested it.
 85 
 86           Kernel drivers may also request that a particular GPIO be
 87           exported to userspace; this can be useful when debugging.
 88 
 89 config GPIO_GENERIC
 90         tristate
 91 
 92 # put drivers in the right section, in alphabetical order
 93 
 94 # This symbol is selected by both I2C and SPI expanders
 95 config GPIO_MAX730X
 96         tristate
 97 
 98 menu "Memory mapped GPIO drivers"
 99 
100 config GPIO_74XX_MMIO
101         tristate "GPIO driver for 74xx-ICs with MMIO access"
102         depends on OF_GPIO
103         select GPIO_GENERIC
104         help
105           Say yes here to support GPIO functionality for 74xx-compatible ICs
106           with MMIO access. Compatible models include:
107             1 bit:      741G125 (Input), 741G74 (Output)
108             2 bits:     742G125 (Input), 7474 (Output)
109             4 bits:     74125 (Input), 74175 (Output)
110             6 bits:     74365 (Input), 74174 (Output)
111             8 bits:     74244 (Input), 74273 (Output)
112             16 bits:    741624 (Input), 7416374 (Output)
113 
114 config GPIO_ALTERA
115         tristate "Altera GPIO"
116         depends on OF_GPIO
117         select GPIOLIB_IRQCHIP
118         help
119           Say Y or M here to build support for the Altera PIO device.
120 
121           If driver is built as a module it will be called gpio-altera.
122 
123 config GPIO_AMDPT
124         tristate "AMD Promontory GPIO support"
125         depends on ACPI
126         select GPIO_GENERIC
127         help
128           driver for GPIO functionality on Promontory IOHub
129           Require ACPI ASL code to enumerate as a platform device.
130 
131 config GPIO_ATH79
132         tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
133         default y if ATH79
134         depends on ATH79 || COMPILE_TEST
135         select GPIO_GENERIC
136         select GPIOLIB_IRQCHIP
137         help
138           Select this option to enable GPIO driver for
139           Atheros AR71XX/AR724X/AR913X SoC devices.
140 
141 config GPIO_BCM_KONA
142         bool "Broadcom Kona GPIO"
143         depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
144         help
145           Turn on GPIO support for Broadcom "Kona" chips.
146 
147 config GPIO_BRCMSTB
148         tristate "BRCMSTB GPIO support"
149         default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
150         depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
151         select GPIO_GENERIC
152         select GPIOLIB_IRQCHIP
153         help
154           Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
155 
156 config GPIO_CLPS711X
157         tristate "CLPS711X GPIO support"
158         depends on ARCH_CLPS711X || COMPILE_TEST
159         select GPIO_GENERIC
160         help
161           Say yes here to support GPIO on CLPS711X SoCs.
162 
163 config GPIO_DAVINCI
164         bool "TI Davinci/Keystone GPIO support"
165         default y if ARCH_DAVINCI
166         depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
167         help
168           Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
169 
170 config GPIO_DWAPB
171         tristate "Synopsys DesignWare APB GPIO driver"
172         select GPIO_GENERIC
173         select GENERIC_IRQ_CHIP
174         help
175           Say Y or M here to build support for the Synopsys DesignWare APB
176           GPIO block.
177 
178 config GPIO_EM
179         tristate "Emma Mobile GPIO"
180         depends on ARM && OF_GPIO
181         help
182           Say yes here to support GPIO on Renesas Emma Mobile SoCs.
183 
184 config GPIO_EP93XX
185         def_bool y
186         depends on ARCH_EP93XX
187         select GPIO_GENERIC
188 
189 config GPIO_ETRAXFS
190         bool "Axis ETRAX FS General I/O"
191         depends on CRIS || COMPILE_TEST
192         depends on OF_GPIO
193         select GPIO_GENERIC
194         select GPIOLIB_IRQCHIP
195         help
196           Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.
197 
198 config GPIO_GE_FPGA
199         bool "GE FPGA based GPIO"
200         depends on GE_FPGA
201         select GPIO_GENERIC
202         help
203           Support for common GPIO functionality provided on some GE Single Board
204           Computers.
205 
206           This driver provides basic support (configure as input or output, read
207           and write pin state) for GPIO implemented in a number of GE single
208           board computers.
209 
210 config GPIO_GENERIC_PLATFORM
211         tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
212         select GPIO_GENERIC
213         help
214           Say yes here to support basic platform_device memory-mapped GPIO controllers.
215 
216 config GPIO_GRGPIO
217         tristate "Aeroflex Gaisler GRGPIO support"
218         depends on OF_GPIO
219         select GPIO_GENERIC
220         select IRQ_DOMAIN
221         help
222           Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
223           VHDL IP core library.
224 
225 config GPIO_ICH
226         tristate "Intel ICH GPIO"
227         depends on PCI && X86
228         select MFD_CORE
229         select LPC_ICH
230         help
231           Say yes here to support the GPIO functionality of a number of Intel
232           ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
233           ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
234           Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
235 
236           If unsure, say N.
237 
238 config GPIO_IOP
239         tristate "Intel IOP GPIO"
240         depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
241         help
242           Say yes here to support the GPIO functionality of a number of Intel
243           IOP32X or IOP33X.
244 
245           If unsure, say N.
246 
247 config GPIO_LOONGSON
248         bool "Loongson-2/3 GPIO support"
249         depends on CPU_LOONGSON2 || CPU_LOONGSON3
250         help
251           driver for GPIO functionality on Loongson-2F/3A/3B processors.
252 
253 config GPIO_LPC18XX
254         tristate "NXP LPC18XX/43XX GPIO support"
255         default y if ARCH_LPC18XX
256         depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
257         help
258           Select this option to enable GPIO driver for
259           NXP LPC18XX/43XX devices.
260 
261 config GPIO_LYNXPOINT
262         tristate "Intel Lynxpoint GPIO support"
263         depends on ACPI && X86
264         select GPIOLIB_IRQCHIP
265         help
266           driver for GPIO functionality on Intel Lynxpoint PCH chipset
267           Requires ACPI device enumeration code to set up a platform device.
268 
269 config GPIO_MB86S7X
270         bool "GPIO support for Fujitsu MB86S7x Platforms"
271         depends on ARCH_MB86S7X || COMPILE_TEST
272         help
273           Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
274 
275 config GPIO_MENZ127
276         tristate "MEN 16Z127 GPIO support"
277         depends on MCB
278         select GPIO_GENERIC
279         help
280          Say yes here to support the MEN 16Z127 GPIO Controller
281 
282 config GPIO_MM_LANTIQ
283         bool "Lantiq Memory mapped GPIOs"
284         depends on LANTIQ && SOC_XWAY
285         help
286           This enables support for memory mapped GPIOs on the External Bus Unit
287           (EBU) found on Lantiq SoCs. The gpios are output only as they are
288           created by attaching a 16bit latch to the bus.
289 
290 config GPIO_MOXART
291         bool "MOXART GPIO support"
292         depends on ARCH_MOXART || COMPILE_TEST
293         select GPIO_GENERIC
294         help
295           Select this option to enable GPIO driver for
296           MOXA ART SoC devices.
297 
298 config GPIO_MPC5200
299         def_bool y
300         depends on PPC_MPC52xx
301 
302 config GPIO_MPC8XXX
303         bool "MPC512x/MPC8xxx/QorIQ GPIO support"
304         depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
305                    FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
306                    COMPILE_TEST
307         select GPIO_GENERIC
308         select IRQ_DOMAIN
309         help
310           Say Y here if you're going to use hardware that connects to the
311           MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
312 
313 config GPIO_MVEBU
314         def_bool y
315         depends on PLAT_ORION
316         depends on OF_GPIO
317         select GENERIC_IRQ_CHIP
318 
319 config GPIO_MXC
320         def_bool y
321         depends on ARCH_MXC
322         select GPIO_GENERIC
323         select GENERIC_IRQ_CHIP
324 
325 config GPIO_MXS
326         def_bool y
327         depends on ARCH_MXS
328         select GPIO_GENERIC
329         select GENERIC_IRQ_CHIP
330 
331 config GPIO_OCTEON
332         tristate "Cavium OCTEON GPIO"
333         depends on GPIOLIB && CAVIUM_OCTEON_SOC
334         default y
335         help
336           Say yes here to support the on-chip GPIO lines on the OCTEON
337           family of SOCs.
338 
339 config GPIO_OMAP
340         tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
341         default y if ARCH_OMAP
342         depends on ARM
343         select GENERIC_IRQ_CHIP
344         select GPIOLIB_IRQCHIP
345         help
346           Say yes here to enable GPIO support for TI OMAP SoCs.
347 
348 config GPIO_PL061
349         bool "PrimeCell PL061 GPIO support"
350         depends on ARM_AMBA
351         select IRQ_DOMAIN
352         select GPIOLIB_IRQCHIP
353         help
354           Say yes here to support the PrimeCell PL061 GPIO device
355 
356 config GPIO_PXA
357         bool "PXA GPIO support"
358         depends on ARCH_PXA || ARCH_MMP
359         help
360           Say yes here to support the PXA GPIO device
361 
362 config GPIO_RCAR
363         tristate "Renesas R-Car GPIO"
364         depends on ARCH_RENESAS || COMPILE_TEST
365         select GPIOLIB_IRQCHIP
366         help
367           Say yes here to support GPIO on Renesas R-Car SoCs.
368 
369 config GPIO_SPEAR_SPICS
370         bool "ST SPEAr13xx SPI Chip Select as GPIO support"
371         depends on PLAT_SPEAR
372         select GENERIC_IRQ_CHIP
373         help
374           Say yes here to support ST SPEAr SPI Chip Select as GPIO device
375 
376 config GPIO_STA2X11
377         bool "STA2x11/ConneXt GPIO support"
378         depends on MFD_STA2X11
379         select GENERIC_IRQ_CHIP
380         help
381           Say yes here to support the STA2x11/ConneXt GPIO device.
382           The GPIO module has 128 GPIO pins with alternate functions.
383 
384 config GPIO_STP_XWAY
385         bool "XWAY STP GPIOs"
386         depends on SOC_XWAY
387         help
388           This enables support for the Serial To Parallel (STP) unit found on
389           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
390           that can be up to 24 bit. This peripheral is aimed at driving leds.
391           Some of the gpios/leds can be auto updated by the soc with dsl and
392           phy status.
393 
394 config GPIO_SYSCON
395         tristate "GPIO based on SYSCON"
396         depends on MFD_SYSCON && OF
397         help
398           Say yes here to support GPIO functionality though SYSCON driver.
399 
400 config GPIO_TB10X
401         bool
402         select GENERIC_IRQ_CHIP
403         select OF_GPIO
404 
405 config GPIO_TEGRA
406         bool "NVIDIA Tegra GPIO support"
407         default ARCH_TEGRA
408         depends on ARCH_TEGRA || COMPILE_TEST
409         depends on OF_GPIO
410         help
411           Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
412 
413 config GPIO_TS4800
414         tristate "TS-4800 DIO blocks and compatibles"
415         depends on OF_GPIO
416         depends on SOC_IMX51 || COMPILE_TEST
417         select GPIO_GENERIC
418         help
419           This driver support TS-4800 FPGA GPIO controllers.
420 
421 config GPIO_TZ1090
422         bool "Toumaz Xenif TZ1090 GPIO support"
423         depends on SOC_TZ1090
424         select GENERIC_IRQ_CHIP
425         default y
426         help
427           Say yes here to support Toumaz Xenif TZ1090 GPIOs.
428 
429 config GPIO_TZ1090_PDC
430         bool "Toumaz Xenif TZ1090 PDC GPIO support"
431         depends on SOC_TZ1090
432         default y
433         help
434           Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
435 
436 config GPIO_VF610
437         def_bool y
438         depends on ARCH_MXC && SOC_VF610
439         select GPIOLIB_IRQCHIP
440         help
441           Say yes here to support Vybrid vf610 GPIOs.
442 
443 config GPIO_VR41XX
444         tristate "NEC VR4100 series General-purpose I/O Uint support"
445         depends on CPU_VR41XX
446         help
447           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
448 
449 config GPIO_VX855
450         tristate "VIA VX855/VX875 GPIO"
451         depends on PCI
452         select MFD_CORE
453         select MFD_VX855
454         help
455           Support access to the VX855/VX875 GPIO lines through the gpio library.
456 
457           This driver provides common support for accessing the device,
458           additional drivers must be enabled in order to use the
459           functionality of the device.
460 
461 config GPIO_XGENE
462         bool "APM X-Gene GPIO controller support"
463         depends on ARM64 && OF_GPIO
464         help
465           This driver is to support the GPIO block within the APM X-Gene SoC
466           platform's generic flash controller. The GPIO pins are muxed with
467           the generic flash controller's address and data pins. Say yes
468           here to enable the GFC GPIO functionality.
469 
470 config GPIO_XGENE_SB
471         tristate "APM X-Gene GPIO standby controller support"
472         depends on ARCH_XGENE && OF_GPIO
473         select GPIO_GENERIC
474         select GPIOLIB_IRQCHIP
475         help
476           This driver supports the GPIO block within the APM X-Gene
477           Standby Domain. Say yes here to enable the GPIO functionality.
478 
479 config GPIO_XILINX
480         tristate "Xilinx GPIO support"
481         depends on OF_GPIO
482         help
483           Say yes here to support the Xilinx FPGA GPIO device
484 
485 config GPIO_XLP
486         tristate "Netlogic XLP GPIO support"
487         depends on OF_GPIO && (CPU_XLP || ARCH_VULCAN || COMPILE_TEST)
488         select GPIOLIB_IRQCHIP
489         help
490           This driver provides support for GPIO interface on Netlogic XLP MIPS64
491           SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
492           XLP9XX and XLP5XX.
493 
494           If unsure, say N.
495 
496 config GPIO_XTENSA
497         bool "Xtensa GPIO32 support"
498         depends on XTENSA
499         depends on HAVE_XTENSA_GPIO32
500         depends on !SMP
501         help
502           Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
503           and EXPSTATE (output) ports
504 
505 config GPIO_ZEVIO
506         bool "LSI ZEVIO SoC memory mapped GPIOs"
507         depends on ARM && OF_GPIO
508         help
509           Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
510 
511 config GPIO_ZYNQ
512         tristate "Xilinx Zynq GPIO support"
513         depends on ARCH_ZYNQ || ARCH_ZYNQMP
514         select GPIOLIB_IRQCHIP
515         help
516           Say yes here to support Xilinx Zynq GPIO controller.
517 
518 config GPIO_ZX
519         bool "ZTE ZX GPIO support"
520         select GPIOLIB_IRQCHIP
521         help
522           Say yes here to support the GPIO device on ZTE ZX SoCs.
523 
524 config GPIO_LOONGSON1
525         tristate "Loongson1 GPIO support"
526         depends on MACH_LOONGSON32
527         select GPIO_GENERIC
528         help
529           Say Y or M here to support GPIO on Loongson1 SoCs.
530 
531 endmenu
532 
533 menu "Port-mapped I/O GPIO drivers"
534         depends on X86 # Unconditional I/O space access
535 
536 config GPIO_104_DIO_48E
537         tristate "ACCES 104-DIO-48E GPIO support"
538         depends on ISA_BUS_API
539         select GPIOLIB_IRQCHIP
540         help
541           Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
542           104-DIO-24E). The base port addresses for the devices may be
543           configured via the base module parameter. The interrupt line numbers
544           for the devices may be configured via the irq module parameter.
545 
546 config GPIO_104_IDIO_16
547         tristate "ACCES 104-IDIO-16 GPIO support"
548         depends on ISA_BUS_API
549         select GPIOLIB_IRQCHIP
550         help
551           Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
552           104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
553           base port addresses for the devices may be configured via the base
554           module parameter. The interrupt line numbers for the devices may be
555           configured via the irq module parameter.
556 
557 config GPIO_104_IDI_48
558         tristate "ACCES 104-IDI-48 GPIO support"
559         depends on ISA_BUS_API
560         select GPIOLIB_IRQCHIP
561         help
562           Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
563           104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
564           the devices may be configured via the base module parameter. The
565           interrupt line numbers for the devices may be configured via the irq
566           module parameter.
567 
568 config GPIO_F7188X
569         tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
570         help
571           This option enables support for GPIOs found on Fintek Super-I/O
572           chips F71869, F71869A, F71882FG, F71889F and F81866.
573 
574           To compile this driver as a module, choose M here: the module will
575           be called f7188x-gpio.
576 
577 config GPIO_IT87
578         tristate "IT87xx GPIO support"
579         help
580           Say yes here to support GPIO functionality of IT87xx Super I/O chips.
581 
582           This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
583           supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
584 
585           To compile this driver as a module, choose M here: the module will
586           be called gpio_it87
587 
588 config GPIO_SCH
589         tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
590         depends on PCI
591         select MFD_CORE
592         select LPC_SCH
593         help
594           Say yes here to support GPIO interface on Intel Poulsbo SCH,
595           Intel Tunnel Creek processor, Intel Centerton processor or
596           Intel Quark X1000 SoC.
597 
598           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
599           powered by the core power rail and are turned off during sleep
600           modes (S3 and higher). The remaining four GPIOs are powered by
601           the Intel SCH suspend power supply. These GPIOs remain
602           active during S3. The suspend powered GPIOs can be used to wake the
603           system from the Suspend-to-RAM state.
604 
605           The Intel Tunnel Creek processor has 5 GPIOs powered by the
606           core power rail and 9 from suspend power supply.
607 
608           The Intel Centerton processor has a total of 30 GPIO pins.
609           Twenty-one are powered by the core power rail and 9 from the
610           suspend power supply.
611 
612           The Intel Quark X1000 SoC has 2 GPIOs powered by the core
613           power well and 6 from the suspend power well.
614 
615 config GPIO_SCH311X
616         tristate "SMSC SCH311x SuperI/O GPIO"
617         help
618           Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
619           SCH3116 "Super I/O" chipsets.
620 
621           To compile this driver as a module, choose M here: the module will
622           be called gpio-sch311x.
623 
624 config GPIO_TS5500
625         tristate "TS-5500 DIO blocks and compatibles"
626         depends on TS5500 || COMPILE_TEST
627         help
628           This driver supports Digital I/O exposed by pin blocks found on some
629           Technologic Systems platforms. It includes, but is not limited to, 3
630           blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
631           LCD port.
632 
633 config GPIO_WS16C48
634         tristate "WinSystems WS16C48 GPIO support"
635         depends on ISA_BUS_API
636         select GPIOLIB_IRQCHIP
637         help
638           Enables GPIO support for the WinSystems WS16C48. The base port
639           addresses for the devices may be configured via the base module
640           parameter. The interrupt line numbers for the devices may be
641           configured via the irq module parameter.
642 
643 endmenu
644 
645 menu "I2C GPIO expanders"
646         depends on I2C
647 
648 config GPIO_ADP5588
649         tristate "ADP5588 I2C GPIO expander"
650         help
651           This option enables support for 18 GPIOs found
652           on Analog Devices ADP5588 GPIO Expanders.
653 
654 config GPIO_ADP5588_IRQ
655         bool "Interrupt controller support for ADP5588"
656         depends on GPIO_ADP5588=y
657         help
658           Say yes here to enable the adp5588 to be used as an interrupt
659           controller. It requires the driver to be built in the kernel.
660 
661 config GPIO_ADNP
662         tristate "Avionic Design N-bit GPIO expander"
663         depends on OF_GPIO
664         select GPIOLIB_IRQCHIP
665         help
666           This option enables support for N GPIOs found on Avionic Design
667           I2C GPIO expanders. The register space will be extended by powers
668           of two, so the controller will need to accommodate for that. For
669           example: if a controller provides 48 pins, 6 registers will be
670           enough to represent all pins, but the driver will assume a
671           register layout for 64 pins (8 registers).
672 
673 config GPIO_MAX7300
674         tristate "Maxim MAX7300 GPIO expander"
675         select GPIO_MAX730X
676         help
677           GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
678 
679 config GPIO_MAX732X
680         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
681         help
682           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
683           Port Expanders. Each IO port on these chips has a fixed role of
684           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
685           Input and Output (designed by 'P'). The combinations are listed
686           below:
687 
688           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
689                         max7322 (4I4O), max7323 (4P4O)
690 
691           16 bits:      max7324 (8I8O), max7325 (8P8O),
692                         max7326 (4I12O), max7327 (4P12O)
693 
694           Board setup code must specify the model to use, and the start
695           number for these GPIOs.
696 
697 config GPIO_MAX732X_IRQ
698         bool "Interrupt controller support for MAX732x"
699         depends on GPIO_MAX732X=y
700         select GPIOLIB_IRQCHIP
701         help
702           Say yes here to enable the max732x to be used as an interrupt
703           controller. It requires the driver to be built in the kernel.
704 
705 config GPIO_MC9S08DZ60
706         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
707         depends on I2C=y && MACH_MX35_3DS
708         help
709           Select this to enable the MC9S08DZ60 GPIO driver
710 
711 config GPIO_PCA953X
712         tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
713         help
714           Say yes here to provide access to several register-oriented
715           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
716           models include:
717 
718           4 bits:       pca9536, pca9537
719 
720           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
721                         pca9556, pca9557, pca9574, tca6408, xra1202
722 
723           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
724                         tca6416
725 
726           24 bits:      tca6424
727 
728           40 bits:      pca9505, pca9698
729 
730 config GPIO_PCA953X_IRQ
731         bool "Interrupt controller support for PCA953x"
732         depends on GPIO_PCA953X=y
733         select GPIOLIB_IRQCHIP
734         help
735           Say yes here to enable the pca953x to be used as an interrupt
736           controller. It requires the driver to be built in the kernel.
737 
738 config GPIO_PCF857X
739         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
740         select GPIOLIB_IRQCHIP
741         select IRQ_DOMAIN
742         help
743           Say yes here to provide access to most "quasi-bidirectional" I2C
744           GPIO expanders used for additional digital outputs or inputs.
745           Most of these parts are from NXP, though TI is a second source for
746           some of them.  Compatible models include:
747 
748           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
749                     pca9670, pca9672, pca9674, pca9674a,
750                     max7328, max7329
751 
752           16 bits:  pcf8575, pcf8575c, pca8575,
753                     pca9671, pca9673, pca9675
754 
755           Your board setup code will need to declare the expanders in
756           use, and assign numbers to the GPIOs they expose.  Those GPIOs
757           can then be used from drivers and other kernel code, just like
758           other GPIOs, but only accessible from task contexts.
759 
760           This driver provides an in-kernel interface to those GPIOs using
761           platform-neutral GPIO calls.
762 
763 config GPIO_SX150X
764         bool "Semtech SX150x I2C GPIO expander"
765         depends on I2C=y
766         select GPIOLIB_IRQCHIP
767         default n
768         help
769           Say yes here to provide support for Semtech SX150-series I2C
770           GPIO expanders. Compatible models include:
771 
772           8 bits:  sx1508q
773           16 bits: sx1509q
774 
775 config GPIO_TPIC2810
776         tristate "TPIC2810 8-Bit I2C GPO expander"
777         help
778           Say yes here to enable the GPO driver for the TI TPIC2810 chip.
779 
780           To compile this driver as a module, choose M here: the module will
781           be called gpio-tpic2810.
782 
783 endmenu
784 
785 menu "MFD GPIO expanders"
786 
787 config GPIO_ADP5520
788         tristate "GPIO Support for ADP5520 PMIC"
789         depends on PMIC_ADP5520
790         help
791           This option enables support for on-chip GPIO found
792           on Analog Devices ADP5520 PMICs.
793 
794 config GPIO_ARIZONA
795         tristate "Wolfson Microelectronics Arizona class devices"
796         depends on MFD_ARIZONA
797         help
798           Support for GPIOs on Wolfson Arizona class devices.
799 
800 config GPIO_CRYSTAL_COVE
801         tristate "GPIO support for Crystal Cove PMIC"
802         depends on INTEL_SOC_PMIC
803         select GPIOLIB_IRQCHIP
804         help
805           Support for GPIO pins on Crystal Cove PMIC.
806 
807           Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
808           inside.
809 
810           This driver can also be built as a module. If so, the module will be
811           called gpio-crystalcove.
812 
813 config GPIO_CS5535
814         tristate "AMD CS5535/CS5536 GPIO support"
815         depends on MFD_CS5535
816         help
817           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
818           can be used for quite a number of things.  The CS5535/6 is found on
819           AMD Geode and Lemote Yeeloong devices.
820 
821           If unsure, say N.
822 
823 config GPIO_DA9052
824         tristate "Dialog DA9052 GPIO"
825         depends on PMIC_DA9052
826         help
827           Say yes here to enable the GPIO driver for the DA9052 chip.
828 
829 config GPIO_DA9055
830         tristate "Dialog Semiconductor DA9055 GPIO"
831         depends on MFD_DA9055
832         help
833           Say yes here to enable the GPIO driver for the DA9055 chip.
834 
835           The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
836           be controller by this driver.
837 
838           If driver is built as a module it will be called gpio-da9055.
839 
840 config GPIO_DLN2
841         tristate "Diolan DLN2 GPIO support"
842         depends on MFD_DLN2
843         select GPIOLIB_IRQCHIP
844 
845         help
846           Select this option to enable GPIO driver for the Diolan DLN2
847           board.
848 
849           This driver can also be built as a module. If so, the module
850           will be called gpio-dln2.
851 
852 config GPIO_JANZ_TTL
853         tristate "Janz VMOD-TTL Digital IO Module"
854         depends on MFD_JANZ_CMODIO
855         help
856           This enables support for the Janz VMOD-TTL Digital IO module.
857           This driver provides support for driving the pins in output
858           mode only. Input mode is not supported.
859 
860 config GPIO_KEMPLD
861         tristate "Kontron ETX / COMexpress GPIO"
862         depends on MFD_KEMPLD
863         help
864           This enables support for the PLD GPIO interface on some Kontron ETX
865           and COMexpress (ETXexpress) modules.
866 
867           This driver can also be built as a module. If so, the module will be
868           called gpio-kempld.
869 
870 config GPIO_LP3943
871         tristate "TI/National Semiconductor LP3943 GPIO expander"
872         depends on MFD_LP3943
873         help
874           GPIO driver for LP3943 MFD.
875           LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
876           Open drain outputs are required for this usage.
877 
878 config GPIO_MAX77620
879         tristate "GPIO support for PMIC MAX77620 and MAX20024"
880         depends on MFD_MAX77620
881         help
882           GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
883           MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
884           driver also provides interrupt support for each of the gpios.
885           Say yes here to enable the max77620 to be used as gpio controller.
886 
887 config GPIO_MSIC
888         bool "Intel MSIC mixed signal gpio support"
889         depends on MFD_INTEL_MSIC
890         help
891           Enable support for GPIO on intel MSIC controllers found in
892           intel MID devices
893 
894 config GPIO_PALMAS
895         bool "TI PALMAS series PMICs GPIO"
896         depends on MFD_PALMAS
897         help
898           Select this option to enable GPIO driver for the TI PALMAS
899           series chip family.
900 
901 config GPIO_RC5T583
902         bool "RICOH RC5T583 GPIO"
903         depends on MFD_RC5T583
904         help
905           Select this option to enable GPIO driver for the Ricoh RC5T583
906           chip family.
907           This driver provides the support for driving/reading the gpio pins
908           of RC5T583 device through standard gpio library.
909 
910 config GPIO_STMPE
911         bool "STMPE GPIOs"
912         depends on MFD_STMPE
913         depends on OF_GPIO
914         select GPIOLIB_IRQCHIP
915         help
916           This enables support for the GPIOs found on the STMPE I/O
917           Expanders.
918 
919 config GPIO_TC3589X
920         bool "TC3589X GPIOs"
921         depends on MFD_TC3589X
922         depends on OF_GPIO
923         select GPIOLIB_IRQCHIP
924         help
925           This enables support for the GPIOs found on the TC3589X
926           I/O Expander.
927 
928 config GPIO_TIMBERDALE
929         bool "Support for timberdale GPIO IP"
930         depends on MFD_TIMBERDALE
931         ---help---
932         Add support for the GPIO IP in the timberdale FPGA.
933 
934 config GPIO_TPS65086
935         tristate "TI TPS65086 GPO"
936         depends on MFD_TPS65086
937         help
938           This driver supports the GPO on TI TPS65086x PMICs.
939 
940 config GPIO_TPS65218
941         tristate "TPS65218 GPIO"
942         depends on MFD_TPS65218
943         help
944           Select this option to enable GPIO driver for the TPS65218
945           chip family.
946 
947 config GPIO_TPS6586X
948         bool "TPS6586X GPIO"
949         depends on MFD_TPS6586X
950         help
951           Select this option to enable GPIO driver for the TPS6586X
952           chip family.
953 
954 config GPIO_TPS65910
955         bool "TPS65910 GPIO"
956         depends on MFD_TPS65910
957         help
958           Select this option to enable GPIO driver for the TPS65910
959           chip family.
960 
961 config GPIO_TPS65912
962         tristate "TI TPS65912 GPIO"
963         depends on MFD_TPS65912
964         help
965           This driver supports TPS65912 gpio chip
966 
967 config GPIO_TWL4030
968         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
969         depends on TWL4030_CORE
970         help
971           Say yes here to access the GPIO signals of various multi-function
972           power management chips from Texas Instruments.
973 
974 config GPIO_TWL6040
975         tristate "TWL6040 GPO"
976         depends on TWL6040_CORE
977         help
978           Say yes here to access the GPO signals of twl6040
979           audio chip from Texas Instruments.
980 
981 config GPIO_UCB1400
982         tristate "Philips UCB1400 GPIO"
983         depends on UCB1400_CORE
984         help
985           This enables support for the Philips UCB1400 GPIO pins.
986           The UCB1400 is an AC97 audio codec.
987 
988 config GPIO_WM831X
989         tristate "WM831x GPIOs"
990         depends on MFD_WM831X
991         help
992           Say yes here to access the GPIO signals of WM831x power management
993           chips from Wolfson Microelectronics.
994 
995 config GPIO_WM8350
996         tristate "WM8350 GPIOs"
997         depends on MFD_WM8350
998         help
999           Say yes here to access the GPIO signals of WM8350 power management
1000           chips from Wolfson Microelectronics.
1001 
1002 config GPIO_WM8994
1003         tristate "WM8994 GPIOs"
1004         depends on MFD_WM8994
1005         help
1006           Say yes here to access the GPIO signals of WM8994 audio hub
1007           CODECs from Wolfson Microelectronics.
1008 
1009 endmenu
1010 
1011 menu "PCI GPIO expanders"
1012         depends on PCI
1013 
1014 config GPIO_AMD8111
1015         tristate "AMD 8111 GPIO driver"
1016         help
1017           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1018 
1019           Note, that usually system firmware/ACPI handles GPIO pins on their
1020           own and users might easily break their systems with uncarefull usage
1021           of this driver!
1022 
1023           If unsure, say N
1024 
1025 config GPIO_BT8XX
1026         tristate "BT8XX GPIO abuser"
1027         depends on VIDEO_BT848=n
1028         help
1029           The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1030           as a cheap PCI GPIO card.
1031 
1032           This chip can be found on Miro, Hauppauge and STB TV-cards.
1033 
1034           The card needs to be physically altered for using it as a
1035           GPIO card. For more information on how to build a GPIO card
1036           from a BT8xx TV card, see the documentation file at
1037           Documentation/bt8xxgpio.txt
1038 
1039           If unsure, say N.
1040 
1041 config GPIO_INTEL_MID
1042         bool "Intel MID GPIO support"
1043         depends on X86_INTEL_MID
1044         select GPIOLIB_IRQCHIP
1045         help
1046           Say Y here to support Intel MID GPIO.
1047 
1048 config GPIO_MERRIFIELD
1049         tristate "Intel Merrifield GPIO support"
1050         depends on X86_INTEL_MID
1051         select GPIOLIB_IRQCHIP
1052         help
1053           Say Y here to support Intel Merrifield GPIO.
1054 
1055 config GPIO_ML_IOH
1056         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1057         select GENERIC_IRQ_CHIP
1058         help
1059           ML7213 is companion chip for Intel Atom E6xx series.
1060           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1061           Hub) which is for IVI(In-Vehicle Infotainment) use.
1062           This driver can access the IOH's GPIO device.
1063 
1064 config GPIO_PCH
1065         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1066         depends on X86_32 || MIPS || COMPILE_TEST
1067         select GENERIC_IRQ_CHIP
1068         help
1069           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1070           which is an IOH(Input/Output Hub) for x86 embedded processor.
1071           This driver can access PCH GPIO device.
1072 
1073           This driver also can be used for LAPIS Semiconductor IOH(Input/
1074           Output Hub), ML7223 and ML7831.
1075           ML7223 IOH is for MP(Media Phone) use.
1076           ML7831 IOH is for general purpose use.
1077           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1078           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1079 
1080 config GPIO_RDC321X
1081         tristate "RDC R-321x GPIO support"
1082         select MFD_CORE
1083         select MFD_RDC321X
1084         help
1085           Support for the RDC R321x SoC GPIOs over southbridge
1086           PCI configuration space.
1087 
1088 config GPIO_SODAVILLE
1089         bool "Intel Sodaville GPIO support"
1090         depends on X86 && OF
1091         select GPIO_GENERIC
1092         select GENERIC_IRQ_CHIP
1093         help
1094           Say Y here to support Intel Sodaville GPIO.
1095 
1096 endmenu
1097 
1098 menu "SPI GPIO expanders"
1099         depends on SPI_MASTER
1100 
1101 config GPIO_74X164
1102         tristate "74x164 serial-in/parallel-out 8-bits shift register"
1103         depends on OF_GPIO
1104         help
1105           Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1106           shift registers. This driver can be used to provide access
1107           to more gpio outputs.
1108 
1109 config GPIO_MAX7301
1110         tristate "Maxim MAX7301 GPIO expander"
1111         select GPIO_MAX730X
1112         help
1113           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1114 
1115 config GPIO_MC33880
1116         tristate "Freescale MC33880 high-side/low-side switch"
1117         help
1118           SPI driver for Freescale MC33880 high-side/low-side switch.
1119           This provides GPIO interface supporting inputs and outputs.
1120 
1121 config GPIO_PISOSR
1122         tristate "Generic parallel-in/serial-out shift register"
1123         help
1124           GPIO driver for SPI compatible parallel-in/serial-out shift
1125           registers. These are input only devices.
1126 
1127 endmenu
1128 
1129 menu "SPI or I2C GPIO expanders"
1130         depends on (SPI_MASTER && !I2C) || I2C
1131 
1132 config GPIO_MCP23S08
1133         tristate "Microchip MCP23xxx I/O expander"
1134         depends on OF_GPIO
1135         select GPIOLIB_IRQCHIP
1136         help
1137           SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
1138           I/O expanders.
1139           This provides a GPIO interface supporting inputs and outputs.
1140           The I2C versions of the chips can be used as interrupt-controller.
1141 
1142 endmenu
1143 
1144 menu "USB GPIO expanders"
1145         depends on USB
1146 
1147 config GPIO_VIPERBOARD
1148         tristate "Viperboard GPIO a & b support"
1149         depends on MFD_VIPERBOARD
1150         help
1151           Say yes here to access the GPIO signals of Nano River
1152           Technologies Viperboard. There are two GPIO chips on the
1153           board: gpioa and gpiob.
1154           See viperboard API specification and Nano
1155           River Tech's viperboard.h for detailed meaning
1156           of the module parameters.
1157 
1158 endmenu
1159 
1160 endif

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