Version:  2.0.40 2.2.26 2.4.37 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18

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 config GPIO_DA9052
 94         tristate "Dialog DA9052 GPIO"
 95         depends on PMIC_DA9052
 96         help
 97           Say yes here to enable the GPIO driver for the DA9052 chip.
 98 
 99 config GPIO_DA9055
100         tristate "Dialog Semiconductor DA9055 GPIO"
101         depends on MFD_DA9055
102         help
103           Say yes here to enable the GPIO driver for the DA9055 chip.
104 
105           The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
106           be controller by this driver.
107 
108           If driver is built as a module it will be called gpio-da9055.
109 
110 config GPIO_MAX730X
111         tristate
112 
113 comment "Memory mapped GPIO drivers:"
114 
115 config GPIO_CLPS711X
116         tristate "CLPS711X GPIO support"
117         depends on ARCH_CLPS711X || COMPILE_TEST
118         select GPIO_GENERIC
119         help
120           Say yes here to support GPIO on CLPS711X SoCs.
121 
122 config GPIO_DAVINCI
123         bool "TI Davinci/Keystone GPIO support"
124         default y if ARCH_DAVINCI
125         depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
126         help
127           Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
128 
129 config GPIO_GENERIC_PLATFORM
130         tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
131         select GPIO_GENERIC
132         help
133           Say yes here to support basic platform_device memory-mapped GPIO controllers.
134 
135 config GPIO_DWAPB
136         tristate "Synopsys DesignWare APB GPIO driver"
137         select GPIO_GENERIC
138         select GENERIC_IRQ_CHIP
139         help
140           Say Y or M here to build support for the Synopsys DesignWare APB
141           GPIO block.
142 
143 config GPIO_IT8761E
144         tristate "IT8761E GPIO support"
145         depends on X86  # unconditional access to IO space.
146         help
147           Say yes here to support GPIO functionality of IT8761E super I/O chip.
148 
149 config GPIO_EM
150         tristate "Emma Mobile GPIO"
151         depends on ARM && OF_GPIO
152         help
153           Say yes here to support GPIO on Renesas Emma Mobile SoCs.
154 
155 config GPIO_EP93XX
156         def_bool y
157         depends on ARCH_EP93XX
158         select GPIO_GENERIC
159 
160 config GPIO_ZEVIO
161         bool "LSI ZEVIO SoC memory mapped GPIOs"
162         depends on ARM && OF_GPIO
163         help
164           Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
165 
166 config GPIO_MM_LANTIQ
167         bool "Lantiq Memory mapped GPIOs"
168         depends on LANTIQ && SOC_XWAY
169         help
170           This enables support for memory mapped GPIOs on the External Bus Unit
171           (EBU) found on Lantiq SoCs. The gpios are output only as they are
172           created by attaching a 16bit latch to the bus.
173 
174 config GPIO_F7188X
175         tristate "F71882FG and F71889F GPIO support"
176         depends on X86
177         help
178           This option enables support for GPIOs found on Fintek Super-I/O
179           chips F71882FG and F71889F.
180 
181           To compile this driver as a module, choose M here: the module will
182           be called f7188x-gpio.
183 
184 config GPIO_MOXART
185         bool "MOXART GPIO support"
186         depends on ARCH_MOXART
187         help
188           Select this option to enable GPIO driver for
189           MOXA ART SoC devices.
190 
191 config GPIO_MPC5200
192         def_bool y
193         depends on PPC_MPC52xx
194 
195 config GPIO_MPC8XXX
196         bool "MPC512x/MPC8xxx GPIO support"
197         depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
198                    FSL_SOC_BOOKE || PPC_86xx
199         help
200           Say Y here if you're going to use hardware that connects to the
201           MPC512x/831x/834x/837x/8572/8610 GPIOs.
202 
203 config GPIO_MSM_V1
204         tristate "Qualcomm MSM GPIO v1"
205         depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50)
206         help
207           Say yes here to support the GPIO interface on ARM v6 based
208           Qualcomm MSM chips.  Most of the pins on the MSM can be
209           selected for GPIO, and are controlled by this driver.
210 
211 config GPIO_MSM_V2
212         tristate "Qualcomm MSM GPIO v2"
213         depends on GPIOLIB && OF && ARCH_QCOM
214         help
215           Say yes here to support the GPIO interface on ARM v7 based
216           Qualcomm MSM chips.  Most of the pins on the MSM can be
217           selected for GPIO, and are controlled by this driver.
218 
219 config GPIO_MVEBU
220         def_bool y
221         depends on PLAT_ORION
222         depends on OF
223         select GPIO_GENERIC
224         select GENERIC_IRQ_CHIP
225 
226 config GPIO_MXC
227         def_bool y
228         depends on ARCH_MXC
229         select GPIO_GENERIC
230         select GENERIC_IRQ_CHIP
231 
232 config GPIO_MXS
233         def_bool y
234         depends on ARCH_MXS
235         select GPIO_GENERIC
236         select GENERIC_IRQ_CHIP
237 
238 config GPIO_OCTEON
239         tristate "Cavium OCTEON GPIO"
240         depends on GPIOLIB && CAVIUM_OCTEON_SOC
241         default y
242         help
243           Say yes here to support the on-chip GPIO lines on the OCTEON
244           family of SOCs.
245 
246 config GPIO_OMAP
247         bool "TI OMAP GPIO support" if COMPILE_TEST && !ARCH_OMAP2PLUS
248         default y if ARCH_OMAP
249         depends on ARM
250         select GENERIC_IRQ_CHIP
251         select GPIOLIB_IRQCHIP
252         help
253           Say yes here to enable GPIO support for TI OMAP SoCs.
254 
255 config GPIO_PL061
256         bool "PrimeCell PL061 GPIO support"
257         depends on ARM_AMBA
258         select IRQ_DOMAIN
259         select GPIOLIB_IRQCHIP
260         help
261           Say yes here to support the PrimeCell PL061 GPIO device
262 
263 config GPIO_PXA
264         bool "PXA GPIO support"
265         depends on ARCH_PXA || ARCH_MMP
266         help
267           Say yes here to support the PXA GPIO device
268 
269 config GPIO_RCAR
270         tristate "Renesas R-Car GPIO"
271         depends on ARM && (ARCH_SHMOBILE || COMPILE_TEST)
272         help
273           Say yes here to support GPIO on Renesas R-Car SoCs.
274 
275 config GPIO_SAMSUNG
276         bool
277         depends on PLAT_SAMSUNG
278         help
279           Legacy GPIO support. Use only for platforms without support for
280           pinctrl.
281 
282 config GPIO_SCH311X
283         tristate "SMSC SCH311x SuperI/O GPIO"
284         help
285           Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
286           SCH3116 "Super I/O" chipsets.
287 
288           To compile this driver as a module, choose M here: the module will
289           be called gpio-sch311x.
290 
291 config GPIO_SPEAR_SPICS
292         bool "ST SPEAr13xx SPI Chip Select as GPIO support"
293         depends on PLAT_SPEAR
294         select GENERIC_IRQ_CHIP
295         help
296           Say yes here to support ST SPEAr SPI Chip Select as GPIO device
297 
298 config GPIO_STA2X11
299         bool "STA2x11/ConneXt GPIO support"
300         depends on MFD_STA2X11
301         select GENERIC_IRQ_CHIP
302         help
303           Say yes here to support the STA2x11/ConneXt GPIO device.
304           The GPIO module has 128 GPIO pins with alternate functions.
305 
306 config GPIO_SYSCON
307         tristate "GPIO based on SYSCON"
308         depends on MFD_SYSCON && OF
309         help
310           Say yes here to support GPIO functionality though SYSCON driver.
311 
312 config GPIO_TS5500
313         tristate "TS-5500 DIO blocks and compatibles"
314         depends on TS5500 || COMPILE_TEST
315         help
316           This driver supports Digital I/O exposed by pin blocks found on some
317           Technologic Systems platforms. It includes, but is not limited to, 3
318           blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
319           LCD port.
320 
321 config GPIO_TZ1090
322         bool "Toumaz Xenif TZ1090 GPIO support"
323         depends on SOC_TZ1090
324         select GENERIC_IRQ_CHIP
325         default y
326         help
327           Say yes here to support Toumaz Xenif TZ1090 GPIOs.
328 
329 config GPIO_TZ1090_PDC
330         bool "Toumaz Xenif TZ1090 PDC GPIO support"
331         depends on SOC_TZ1090
332         default y
333         help
334           Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
335 
336 config GPIO_XGENE
337         bool "APM X-Gene GPIO controller support"
338         depends on ARM64 && OF_GPIO
339         help
340           This driver is to support the GPIO block within the APM X-Gene SoC
341           platform's generic flash controller. The GPIO pins are muxed with
342           the generic flash controller's address and data pins. Say yes
343           here to enable the GFC GPIO functionality.
344 
345 config GPIO_XILINX
346         bool "Xilinx GPIO support"
347         depends on PPC_OF || MICROBLAZE || ARCH_ZYNQ
348         help
349           Say yes here to support the Xilinx FPGA GPIO device
350 
351 config GPIO_ZYNQ
352         tristate "Xilinx Zynq GPIO support"
353         depends on ARCH_ZYNQ
354         select GPIOLIB_IRQCHIP
355         help
356           Say yes here to support Xilinx Zynq GPIO controller.
357 
358 config GPIO_XTENSA
359         bool "Xtensa GPIO32 support"
360         depends on XTENSA
361         depends on HAVE_XTENSA_GPIO32
362         depends on !SMP
363         help
364           Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
365           and EXPSTATE (output) ports
366 
367 config GPIO_VR41XX
368         tristate "NEC VR4100 series General-purpose I/O Uint support"
369         depends on CPU_VR41XX
370         help
371           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
372 
373 config GPIO_SCH
374         tristate "Intel SCH/TunnelCreek/Centerton GPIO"
375         depends on PCI && X86
376         select MFD_CORE
377         select LPC_SCH
378         help
379           Say yes here to support GPIO interface on Intel Poulsbo SCH,
380           Intel Tunnel Creek processor or Intel Centerton processor.
381           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
382           powered by the core power rail and are turned off during sleep
383           modes (S3 and higher). The remaining four GPIOs are powered by
384           the Intel SCH suspend power supply. These GPIOs remain
385           active during S3. The suspend powered GPIOs can be used to wake the
386           system from the Suspend-to-RAM state.
387           The Intel Tunnel Creek processor has 5 GPIOs powered by the
388           core power rail and 9 from suspend power supply.
389           The Intel Centerton processor has a total of 30 GPIO pins.
390           Twenty-one are powered by the core power rail and 9 from the
391           suspend power supply.
392 
393 config GPIO_ICH
394         tristate "Intel ICH GPIO"
395         depends on PCI && X86
396         select MFD_CORE
397         select LPC_ICH
398         help
399           Say yes here to support the GPIO functionality of a number of Intel
400           ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
401           ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
402           Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
403 
404           If unsure, say N.
405 
406 config GPIO_IOP
407         tristate "Intel IOP GPIO"
408         depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
409         help
410           Say yes here to support the GPIO functionality of a number of Intel
411           IOP32X or IOP33X.
412 
413           If unsure, say N.
414 
415 config GPIO_VX855
416         tristate "VIA VX855/VX875 GPIO"
417         depends on PCI
418         select MFD_CORE
419         select MFD_VX855
420         help
421           Support access to the VX855/VX875 GPIO lines through the gpio library.
422 
423           This driver provides common support for accessing the device,
424           additional drivers must be enabled in order to use the
425           functionality of the device.
426 
427 config GPIO_GE_FPGA
428         bool "GE FPGA based GPIO"
429         depends on GE_FPGA
430         help
431           Support for common GPIO functionality provided on some GE Single Board
432           Computers.
433 
434           This driver provides basic support (configure as input or output, read
435           and write pin state) for GPIO implemented in a number of GE single
436           board computers.
437 
438 config GPIO_LYNXPOINT
439         tristate "Intel Lynxpoint GPIO support"
440         depends on ACPI && X86
441         select GPIOLIB_IRQCHIP
442         help
443           driver for GPIO functionality on Intel Lynxpoint PCH chipset
444           Requires ACPI device enumeration code to set up a platform device.
445 
446 config GPIO_GRGPIO
447         tristate "Aeroflex Gaisler GRGPIO support"
448         depends on OF
449         select GPIO_GENERIC
450         select IRQ_DOMAIN
451         help
452           Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
453           VHDL IP core library.
454 
455 config GPIO_TB10X
456         bool
457         select GENERIC_IRQ_CHIP
458         select OF_GPIO
459 
460 comment "I2C GPIO expanders:"
461 
462 config GPIO_ARIZONA
463         tristate "Wolfson Microelectronics Arizona class devices"
464         depends on MFD_ARIZONA
465         help
466           Support for GPIOs on Wolfson Arizona class devices.
467 
468 config GPIO_CRYSTAL_COVE
469         tristate "GPIO support for Crystal Cove PMIC"
470         depends on INTEL_SOC_PMIC
471         select GPIOLIB_IRQCHIP
472         help
473           Support for GPIO pins on Crystal Cove PMIC.
474 
475           Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
476           inside.
477 
478           This driver can also be built as a module. If so, the module will be
479           called gpio-crystalcove.
480 
481 config GPIO_LP3943
482         tristate "TI/National Semiconductor LP3943 GPIO expander"
483         depends on MFD_LP3943
484         help
485           GPIO driver for LP3943 MFD.
486           LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
487           Open drain outputs are required for this usage.
488 
489 config GPIO_MAX7300
490         tristate "Maxim MAX7300 GPIO expander"
491         depends on I2C
492         select GPIO_MAX730X
493         help
494           GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
495 
496 config GPIO_MAX732X
497         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
498         depends on I2C
499         help
500           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
501           Port Expanders. Each IO port on these chips has a fixed role of
502           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
503           Input and Output (designed by 'P'). The combinations are listed
504           below:
505 
506           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
507                         max7322 (4I4O), max7323 (4P4O)
508 
509           16 bits:      max7324 (8I8O), max7325 (8P8O),
510                         max7326 (4I12O), max7327 (4P12O)
511 
512           Board setup code must specify the model to use, and the start
513           number for these GPIOs.
514 
515 config GPIO_MAX732X_IRQ
516         bool "Interrupt controller support for MAX732x"
517         depends on GPIO_MAX732X=y
518         help
519           Say yes here to enable the max732x to be used as an interrupt
520           controller. It requires the driver to be built in the kernel.
521 
522 config GPIO_MC9S08DZ60
523         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
524         depends on I2C=y && MACH_MX35_3DS
525         help
526           Select this to enable the MC9S08DZ60 GPIO driver
527 
528 config GPIO_PCA953X
529         tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
530         depends on I2C
531         help
532           Say yes here to provide access to several register-oriented
533           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
534           models include:
535 
536           4 bits:       pca9536, pca9537
537 
538           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
539                         pca9556, pca9557, pca9574, tca6408, xra1202
540 
541           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
542                         tca6416
543 
544           24 bits:      tca6424
545 
546           40 bits:      pca9505, pca9698
547 
548 config GPIO_PCA953X_IRQ
549         bool "Interrupt controller support for PCA953x"
550         depends on GPIO_PCA953X=y
551         select GPIOLIB_IRQCHIP
552         help
553           Say yes here to enable the pca953x to be used as an interrupt
554           controller. It requires the driver to be built in the kernel.
555 
556 config GPIO_PCF857X
557         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
558         depends on I2C
559         select IRQ_DOMAIN
560         help
561           Say yes here to provide access to most "quasi-bidirectional" I2C
562           GPIO expanders used for additional digital outputs or inputs.
563           Most of these parts are from NXP, though TI is a second source for
564           some of them.  Compatible models include:
565 
566           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
567                     pca9670, pca9672, pca9674, pca9674a,
568                     max7328, max7329
569 
570           16 bits:  pcf8575, pcf8575c, pca8575,
571                     pca9671, pca9673, pca9675
572 
573           Your board setup code will need to declare the expanders in
574           use, and assign numbers to the GPIOs they expose.  Those GPIOs
575           can then be used from drivers and other kernel code, just like
576           other GPIOs, but only accessible from task contexts.
577 
578           This driver provides an in-kernel interface to those GPIOs using
579           platform-neutral GPIO calls.
580 
581 config GPIO_RC5T583
582         bool "RICOH RC5T583 GPIO"
583         depends on MFD_RC5T583
584         help
585           Select this option to enable GPIO driver for the Ricoh RC5T583
586           chip family.
587           This driver provides the support for driving/reading the gpio pins
588           of RC5T583 device through standard gpio library.
589 
590 config GPIO_SX150X
591         bool "Semtech SX150x I2C GPIO expander"
592         depends on I2C=y
593         default n
594         help
595           Say yes here to provide support for Semtech SX150-series I2C
596           GPIO expanders. Compatible models include:
597 
598           8 bits:  sx1508q
599           16 bits: sx1509q
600 
601 config GPIO_STMPE
602         bool "STMPE GPIOs"
603         depends on MFD_STMPE
604         select GPIOLIB_IRQCHIP
605         help
606           This enables support for the GPIOs found on the STMPE I/O
607           Expanders.
608 
609 config GPIO_STP_XWAY
610         bool "XWAY STP GPIOs"
611         depends on SOC_XWAY
612         help
613           This enables support for the Serial To Parallel (STP) unit found on
614           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
615           that can be up to 24 bit. This peripheral is aimed at driving leds.
616           Some of the gpios/leds can be auto updated by the soc with dsl and
617           phy status.
618 
619 config GPIO_TC3589X
620         bool "TC3589X GPIOs"
621         depends on MFD_TC3589X
622         select GPIOLIB_IRQCHIP
623         help
624           This enables support for the GPIOs found on the TC3589X
625           I/O Expander.
626 
627 config GPIO_TPS65912
628         tristate "TI TPS65912 GPIO"
629         depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
630         help
631           This driver supports TPS65912 gpio chip
632 
633 config GPIO_TWL4030
634         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
635         depends on TWL4030_CORE
636         help
637           Say yes here to access the GPIO signals of various multi-function
638           power management chips from Texas Instruments.
639 
640 config GPIO_TWL6040
641         tristate "TWL6040 GPO"
642         depends on TWL6040_CORE
643         help
644           Say yes here to access the GPO signals of twl6040
645           audio chip from Texas Instruments.
646 
647 config GPIO_WM831X
648         tristate "WM831x GPIOs"
649         depends on MFD_WM831X
650         help
651           Say yes here to access the GPIO signals of WM831x power management
652           chips from Wolfson Microelectronics.
653 
654 config GPIO_WM8350
655         tristate "WM8350 GPIOs"
656         depends on MFD_WM8350
657         help
658           Say yes here to access the GPIO signals of WM8350 power management
659           chips from Wolfson Microelectronics.
660 
661 config GPIO_WM8994
662         tristate "WM8994 GPIOs"
663         depends on MFD_WM8994
664         help
665           Say yes here to access the GPIO signals of WM8994 audio hub
666           CODECs from Wolfson Microelectronics.
667 
668 config GPIO_ADP5520
669         tristate "GPIO Support for ADP5520 PMIC"
670         depends on PMIC_ADP5520
671         help
672           This option enables support for on-chip GPIO found
673           on Analog Devices ADP5520 PMICs.
674 
675 config GPIO_ADP5588
676         tristate "ADP5588 I2C GPIO expander"
677         depends on I2C
678         help
679           This option enables support for 18 GPIOs found
680           on Analog Devices ADP5588 GPIO Expanders.
681 
682 config GPIO_ADP5588_IRQ
683         bool "Interrupt controller support for ADP5588"
684         depends on GPIO_ADP5588=y
685         help
686           Say yes here to enable the adp5588 to be used as an interrupt
687           controller. It requires the driver to be built in the kernel.
688 
689 config GPIO_ADNP
690         tristate "Avionic Design N-bit GPIO expander"
691         depends on I2C && OF_GPIO
692         select GPIOLIB_IRQCHIP
693         help
694           This option enables support for N GPIOs found on Avionic Design
695           I2C GPIO expanders. The register space will be extended by powers
696           of two, so the controller will need to accommodate for that. For
697           example: if a controller provides 48 pins, 6 registers will be
698           enough to represent all pins, but the driver will assume a
699           register layout for 64 pins (8 registers).
700 
701 comment "PCI GPIO expanders:"
702 
703 config GPIO_CS5535
704         tristate "AMD CS5535/CS5536 GPIO support"
705         depends on MFD_CS5535
706         help
707           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
708           can be used for quite a number of things.  The CS5535/6 is found on
709           AMD Geode and Lemote Yeeloong devices.
710 
711           If unsure, say N.
712 
713 config GPIO_BT8XX
714         tristate "BT8XX GPIO abuser"
715         depends on PCI && VIDEO_BT848=n
716         help
717           The BT8xx frame grabber chip has 24 GPIO pins that can be abused
718           as a cheap PCI GPIO card.
719 
720           This chip can be found on Miro, Hauppauge and STB TV-cards.
721 
722           The card needs to be physically altered for using it as a
723           GPIO card. For more information on how to build a GPIO card
724           from a BT8xx TV card, see the documentation file at
725           Documentation/bt8xxgpio.txt
726 
727           If unsure, say N.
728 
729 config GPIO_AMD8111
730         tristate "AMD 8111 GPIO driver"
731         depends on PCI
732         help
733           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
734 
735           Note, that usually system firmware/ACPI handles GPIO pins on their
736           own and users might easily break their systems with uncarefull usage
737           of this driver!
738 
739           If unsure, say N
740 
741 config GPIO_INTEL_MID
742         bool "Intel Mid GPIO support"
743         depends on PCI && X86
744         select GPIOLIB_IRQCHIP
745         help
746           Say Y here to support Intel Mid GPIO.
747 
748 config GPIO_PCH
749         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
750         depends on PCI && (X86_32 || COMPILE_TEST)
751         select GENERIC_IRQ_CHIP
752         help
753           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
754           which is an IOH(Input/Output Hub) for x86 embedded processor.
755           This driver can access PCH GPIO device.
756 
757           This driver also can be used for LAPIS Semiconductor IOH(Input/
758           Output Hub), ML7223 and ML7831.
759           ML7223 IOH is for MP(Media Phone) use.
760           ML7831 IOH is for general purpose use.
761           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
762           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
763 
764 config GPIO_ML_IOH
765         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
766         depends on PCI
767         select GENERIC_IRQ_CHIP
768         help
769           ML7213 is companion chip for Intel Atom E6xx series.
770           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
771           Hub) which is for IVI(In-Vehicle Infotainment) use.
772           This driver can access the IOH's GPIO device.
773 
774 config GPIO_SODAVILLE
775         bool "Intel Sodaville GPIO support"
776         depends on X86 && PCI && OF
777         select GPIO_GENERIC
778         select GENERIC_IRQ_CHIP
779         help
780           Say Y here to support Intel Sodaville GPIO.
781 
782 config GPIO_TIMBERDALE
783         bool "Support for timberdale GPIO IP"
784         depends on MFD_TIMBERDALE
785         ---help---
786         Add support for the GPIO IP in the timberdale FPGA.
787 
788 config GPIO_RDC321X
789         tristate "RDC R-321x GPIO support"
790         depends on PCI
791         select MFD_CORE
792         select MFD_RDC321X
793         help
794           Support for the RDC R321x SoC GPIOs over southbridge
795           PCI configuration space.
796 
797 comment "SPI GPIO expanders:"
798 
799 config GPIO_MAX7301
800         tristate "Maxim MAX7301 GPIO expander"
801         depends on SPI_MASTER
802         select GPIO_MAX730X
803         help
804           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
805 
806 config GPIO_MCP23S08
807         tristate "Microchip MCP23xxx I/O expander"
808         depends on (SPI_MASTER && !I2C) || I2C
809         help
810           SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
811           I/O expanders.
812           This provides a GPIO interface supporting inputs and outputs.
813           The I2C versions of the chips can be used as interrupt-controller.
814 
815 config GPIO_MC33880
816         tristate "Freescale MC33880 high-side/low-side switch"
817         depends on SPI_MASTER
818         help
819           SPI driver for Freescale MC33880 high-side/low-side switch.
820           This provides GPIO interface supporting inputs and outputs.
821 
822 config GPIO_74X164
823         tristate "74x164 serial-in/parallel-out 8-bits shift register"
824         depends on SPI_MASTER && OF
825         help
826           Driver for 74x164 compatible serial-in/parallel-out 8-outputs
827           shift registers. This driver can be used to provide access
828           to more gpio outputs.
829 
830 comment "AC97 GPIO expanders:"
831 
832 config GPIO_UCB1400
833         tristate "Philips UCB1400 GPIO"
834         depends on UCB1400_CORE
835         help
836           This enables support for the Philips UCB1400 GPIO pins.
837           The UCB1400 is an AC97 audio codec.
838 
839 comment "LPC GPIO expanders:"
840 
841 config GPIO_KEMPLD
842         tristate "Kontron ETX / COMexpress GPIO"
843         depends on MFD_KEMPLD
844         help
845           This enables support for the PLD GPIO interface on some Kontron ETX
846           and COMexpress (ETXexpress) modules.
847 
848           This driver can also be built as a module. If so, the module will be
849           called gpio-kempld.
850 
851 comment "MODULbus GPIO expanders:"
852 
853 config GPIO_JANZ_TTL
854         tristate "Janz VMOD-TTL Digital IO Module"
855         depends on MFD_JANZ_CMODIO
856         help
857           This enables support for the Janz VMOD-TTL Digital IO module.
858           This driver provides support for driving the pins in output
859           mode only. Input mode is not supported.
860 
861 config GPIO_PALMAS
862         bool "TI PALMAS series PMICs GPIO"
863         depends on MFD_PALMAS
864         help
865           Select this option to enable GPIO driver for the TI PALMAS
866           series chip family.
867 
868 config GPIO_TPS6586X
869         bool "TPS6586X GPIO"
870         depends on MFD_TPS6586X
871         help
872           Select this option to enable GPIO driver for the TPS6586X
873           chip family.
874 
875 config GPIO_TPS65910
876         bool "TPS65910 GPIO"
877         depends on MFD_TPS65910
878         help
879           Select this option to enable GPIO driver for the TPS65910
880           chip family.
881 
882 config GPIO_MSIC
883         bool "Intel MSIC mixed signal gpio support"
884         depends on MFD_INTEL_MSIC
885         help
886           Enable support for GPIO on intel MSIC controllers found in
887           intel MID devices
888 
889 config GPIO_BCM_KONA
890         bool "Broadcom Kona GPIO"
891         depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
892         help
893           Turn on GPIO support for Broadcom "Kona" chips.
894 
895 comment "USB GPIO expanders:"
896 
897 config GPIO_VIPERBOARD
898         tristate "Viperboard GPIO a & b support"
899         depends on MFD_VIPERBOARD && USB
900         help
901           Say yes here to access the GPIO signals of Nano River
902           Technologies Viperboard. There are two GPIO chips on the
903           board: gpioa and gpiob.
904           See viperboard API specification and Nano
905           River Tech's viperboard.h for detailed meaning
906           of the module parameters.
907 
908 endif

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