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1#
2# GPIO infrastructure and drivers
3#
4
5config 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
13config 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
23config 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
34menuconfig 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
44if GPIOLIB
45
46config GPIO_DEVRES
47 def_bool y
48 depends on HAS_IOMEM
49
50config OF_GPIO
51 def_bool y
52 depends on OF
53
54config GPIO_ACPI
55 def_bool y
56 depends on ACPI
57
58config GPIOLIB_IRQCHIP
59 bool
60
61config DEBUG_GPIO
62 bool "Debug GPIO calls"
63 depends on DEBUG_KERNEL
64 help
65 Say Y here to add some extra checks and diagnostics to GPIO calls.
66 These checks help ensure that GPIOs have been properly initialized
67 before they are used, and that sleeping calls are not made from
68 non-sleeping contexts. They can make bitbanged serial protocols
69 slower. The diagnostics help catch the type of setup errors
70 that are most common when setting up new platforms or boards.
71
72config GPIO_SYSFS
73 bool "/sys/class/gpio/... (sysfs interface)"
74 depends on SYSFS
75 help
76 Say Y here to add a sysfs interface for GPIOs.
77
78 This is mostly useful to work around omissions in a system's
79 kernel support. Those are common in custom and semicustom
80 hardware assembled using standard kernels with a minimum of
81 custom patches. In those cases, userspace code may import
82 a given GPIO from the kernel, if no kernel driver requested it.
83
84 Kernel drivers may also request that a particular GPIO be
85 exported to userspace; this can be useful when debugging.
86
87config GPIO_GENERIC
88 tristate
89
90# put drivers in the right section, in alphabetical order
91
92config GPIO_DA9052
93 tristate "Dialog DA9052 GPIO"
94 depends on PMIC_DA9052
95 help
96 Say yes here to enable the GPIO driver for the DA9052 chip.
97
98config GPIO_DA9055
99 tristate "Dialog Semiconductor DA9055 GPIO"
100 depends on MFD_DA9055
101 help
102 Say yes here to enable the GPIO driver for the DA9055 chip.
103
104 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
105 be controller by this driver.
106
107 If driver is built as a module it will be called gpio-da9055.
108
109config GPIO_MAX730X
110 tristate
111
112comment "Memory mapped GPIO drivers:"
113
114config GPIO_CLPS711X
115 tristate "CLPS711X GPIO support"
116 depends on ARCH_CLPS711X || COMPILE_TEST
117 select GPIO_GENERIC
118 help
119 Say yes here to support GPIO on CLPS711X SoCs.
120
121config GPIO_DAVINCI
122 bool "TI Davinci/Keystone GPIO support"
123 default y if ARCH_DAVINCI
124 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
125 help
126 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
127
128config GPIO_GENERIC_PLATFORM
129 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
130 select GPIO_GENERIC
131 help
132 Say yes here to support basic platform_device memory-mapped GPIO controllers.
133
134config GPIO_DWAPB
135 tristate "Synopsys DesignWare APB GPIO driver"
136 select GPIO_GENERIC
137 select GENERIC_IRQ_CHIP
138 depends on OF_GPIO
139 help
140 Say Y or M here to build support for the Synopsys DesignWare APB
141 GPIO block.
142
143config 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
149config 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
155config GPIO_EP93XX
156 def_bool y
157 depends on ARCH_EP93XX
158 select GPIO_GENERIC
159
160config 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
166config 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
174config 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
184config 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
191config GPIO_MPC5200
192 def_bool y
193 depends on PPC_MPC52xx
194
195config 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
203config 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
211config 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
219config 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
226config GPIO_MXC
227 def_bool y
228 depends on ARCH_MXC
229 select GPIO_GENERIC
230 select GENERIC_IRQ_CHIP
231
232config GPIO_MXS
233 def_bool y
234 depends on ARCH_MXS
235 select GPIO_GENERIC
236 select GENERIC_IRQ_CHIP
237
238config 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
246config GPIO_PL061
247 bool "PrimeCell PL061 GPIO support"
248 depends on ARM_AMBA
249 select IRQ_DOMAIN
250 select GPIOLIB_IRQCHIP
251 help
252 Say yes here to support the PrimeCell PL061 GPIO device
253
254config GPIO_PXA
255 bool "PXA GPIO support"
256 depends on ARCH_PXA || ARCH_MMP
257 help
258 Say yes here to support the PXA GPIO device
259
260config GPIO_RCAR
261 tristate "Renesas R-Car GPIO"
262 depends on ARM
263 help
264 Say yes here to support GPIO on Renesas R-Car SoCs.
265
266config GPIO_SAMSUNG
267 bool
268 depends on PLAT_SAMSUNG
269 help
270 Legacy GPIO support. Use only for platforms without support for
271 pinctrl.
272
273config GPIO_SCH311X
274 tristate "SMSC SCH311x SuperI/O GPIO"
275 help
276 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
277 SCH3116 "Super I/O" chipsets.
278
279 To compile this driver as a module, choose M here: the module will
280 be called gpio-sch311x.
281
282config GPIO_SPEAR_SPICS
283 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
284 depends on PLAT_SPEAR
285 select GENERIC_IRQ_CHIP
286 help
287 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
288
289config GPIO_STA2X11
290 bool "STA2x11/ConneXt GPIO support"
291 depends on MFD_STA2X11
292 select GENERIC_IRQ_CHIP
293 help
294 Say yes here to support the STA2x11/ConneXt GPIO device.
295 The GPIO module has 128 GPIO pins with alternate functions.
296
297config GPIO_SYSCON
298 tristate "GPIO based on SYSCON"
299 depends on MFD_SYSCON && OF
300 help
301 Say yes here to support GPIO functionality though SYSCON driver.
302
303config GPIO_TS5500
304 tristate "TS-5500 DIO blocks and compatibles"
305 depends on TS5500 || COMPILE_TEST
306 help
307 This driver supports Digital I/O exposed by pin blocks found on some
308 Technologic Systems platforms. It includes, but is not limited to, 3
309 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
310 LCD port.
311
312config GPIO_TZ1090
313 bool "Toumaz Xenif TZ1090 GPIO support"
314 depends on SOC_TZ1090
315 select GENERIC_IRQ_CHIP
316 default y
317 help
318 Say yes here to support Toumaz Xenif TZ1090 GPIOs.
319
320config GPIO_TZ1090_PDC
321 bool "Toumaz Xenif TZ1090 PDC GPIO support"
322 depends on SOC_TZ1090
323 default y
324 help
325 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
326
327config GPIO_XILINX
328 bool "Xilinx GPIO support"
329 depends on PPC_OF || MICROBLAZE || ARCH_ZYNQ
330 help
331 Say yes here to support the Xilinx FPGA GPIO device
332
333config GPIO_XTENSA
334 bool "Xtensa GPIO32 support"
335 depends on XTENSA
336 depends on HAVE_XTENSA_GPIO32
337 depends on !SMP
338 help
339 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
340 and EXPSTATE (output) ports
341
342config GPIO_VR41XX
343 tristate "NEC VR4100 series General-purpose I/O Uint support"
344 depends on CPU_VR41XX
345 help
346 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
347
348config GPIO_SCH
349 tristate "Intel SCH/TunnelCreek/Centerton GPIO"
350 depends on PCI && X86
351 select MFD_CORE
352 select LPC_SCH
353 help
354 Say yes here to support GPIO interface on Intel Poulsbo SCH,
355 Intel Tunnel Creek processor or Intel Centerton processor.
356 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
357 powered by the core power rail and are turned off during sleep
358 modes (S3 and higher). The remaining four GPIOs are powered by
359 the Intel SCH suspend power supply. These GPIOs remain
360 active during S3. The suspend powered GPIOs can be used to wake the
361 system from the Suspend-to-RAM state.
362 The Intel Tunnel Creek processor has 5 GPIOs powered by the
363 core power rail and 9 from suspend power supply.
364 The Intel Centerton processor has a total of 30 GPIO pins.
365 Twenty-one are powered by the core power rail and 9 from the
366 suspend power supply.
367
368config GPIO_ICH
369 tristate "Intel ICH GPIO"
370 depends on PCI && X86
371 select MFD_CORE
372 select LPC_ICH
373 help
374 Say yes here to support the GPIO functionality of a number of Intel
375 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
376 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
377 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
378
379 If unsure, say N.
380
381config GPIO_IOP
382 tristate "Intel IOP GPIO"
383 depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
384 help
385 Say yes here to support the GPIO functionality of a number of Intel
386 IOP32X or IOP33X.
387
388 If unsure, say N.
389
390config GPIO_VX855
391 tristate "VIA VX855/VX875 GPIO"
392 depends on PCI
393 select MFD_CORE
394 select MFD_VX855
395 help
396 Support access to the VX855/VX875 GPIO lines through the gpio library.
397
398 This driver provides common support for accessing the device,
399 additional drivers must be enabled in order to use the
400 functionality of the device.
401
402config GPIO_GE_FPGA
403 bool "GE FPGA based GPIO"
404 depends on GE_FPGA
405 help
406 Support for common GPIO functionality provided on some GE Single Board
407 Computers.
408
409 This driver provides basic support (configure as input or output, read
410 and write pin state) for GPIO implemented in a number of GE single
411 board computers.
412
413config GPIO_LYNXPOINT
414 tristate "Intel Lynxpoint GPIO support"
415 depends on ACPI && X86
416 select IRQ_DOMAIN
417 help
418 driver for GPIO functionality on Intel Lynxpoint PCH chipset
419 Requires ACPI device enumeration code to set up a platform device.
420
421config GPIO_GRGPIO
422 tristate "Aeroflex Gaisler GRGPIO support"
423 depends on OF
424 select GPIO_GENERIC
425 select IRQ_DOMAIN
426 help
427 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
428 VHDL IP core library.
429
430config GPIO_TB10X
431 bool
432 select GENERIC_IRQ_CHIP
433 select OF_GPIO
434
435comment "I2C GPIO expanders:"
436
437config GPIO_ARIZONA
438 tristate "Wolfson Microelectronics Arizona class devices"
439 depends on MFD_ARIZONA
440 help
441 Support for GPIOs on Wolfson Arizona class devices.
442
443config GPIO_LP3943
444 tristate "TI/National Semiconductor LP3943 GPIO expander"
445 depends on MFD_LP3943
446 help
447 GPIO driver for LP3943 MFD.
448 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
449 Open drain outputs are required for this usage.
450
451config GPIO_MAX7300
452 tristate "Maxim MAX7300 GPIO expander"
453 depends on I2C
454 select GPIO_MAX730X
455 help
456 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
457
458config GPIO_MAX732X
459 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
460 depends on I2C
461 help
462 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
463 Port Expanders. Each IO port on these chips has a fixed role of
464 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
465 Input and Output (designed by 'P'). The combinations are listed
466 below:
467
468 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
469 max7322 (4I4O), max7323 (4P4O)
470
471 16 bits: max7324 (8I8O), max7325 (8P8O),
472 max7326 (4I12O), max7327 (4P12O)
473
474 Board setup code must specify the model to use, and the start
475 number for these GPIOs.
476
477config GPIO_MAX732X_IRQ
478 bool "Interrupt controller support for MAX732x"
479 depends on GPIO_MAX732X=y
480 help
481 Say yes here to enable the max732x to be used as an interrupt
482 controller. It requires the driver to be built in the kernel.
483
484config GPIO_MC9S08DZ60
485 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
486 depends on I2C=y && MACH_MX35_3DS
487 help
488 Select this to enable the MC9S08DZ60 GPIO driver
489
490config GPIO_PCA953X
491 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
492 depends on I2C
493 help
494 Say yes here to provide access to several register-oriented
495 SMBus I/O expanders, made mostly by NXP or TI. Compatible
496 models include:
497
498 4 bits: pca9536, pca9537
499
500 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
501 pca9556, pca9557, pca9574, tca6408, xra1202
502
503 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
504 tca6416
505
506 24 bits: tca6424
507
508 40 bits: pca9505, pca9698
509
510config GPIO_PCA953X_IRQ
511 bool "Interrupt controller support for PCA953x"
512 depends on GPIO_PCA953X=y
513 help
514 Say yes here to enable the pca953x to be used as an interrupt
515 controller. It requires the driver to be built in the kernel.
516
517config GPIO_PCF857X
518 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
519 depends on I2C
520 select IRQ_DOMAIN
521 help
522 Say yes here to provide access to most "quasi-bidirectional" I2C
523 GPIO expanders used for additional digital outputs or inputs.
524 Most of these parts are from NXP, though TI is a second source for
525 some of them. Compatible models include:
526
527 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
528 pca9670, pca9672, pca9674, pca9674a,
529 max7328, max7329
530
531 16 bits: pcf8575, pcf8575c, pca8575,
532 pca9671, pca9673, pca9675
533
534 Your board setup code will need to declare the expanders in
535 use, and assign numbers to the GPIOs they expose. Those GPIOs
536 can then be used from drivers and other kernel code, just like
537 other GPIOs, but only accessible from task contexts.
538
539 This driver provides an in-kernel interface to those GPIOs using
540 platform-neutral GPIO calls.
541
542config GPIO_RC5T583
543 bool "RICOH RC5T583 GPIO"
544 depends on MFD_RC5T583
545 help
546 Select this option to enable GPIO driver for the Ricoh RC5T583
547 chip family.
548 This driver provides the support for driving/reading the gpio pins
549 of RC5T583 device through standard gpio library.
550
551config GPIO_SX150X
552 bool "Semtech SX150x I2C GPIO expander"
553 depends on I2C=y
554 default n
555 help
556 Say yes here to provide support for Semtech SX150-series I2C
557 GPIO expanders. Compatible models include:
558
559 8 bits: sx1508q
560 16 bits: sx1509q
561
562config GPIO_STMPE
563 bool "STMPE GPIOs"
564 depends on MFD_STMPE
565 help
566 This enables support for the GPIOs found on the STMPE I/O
567 Expanders.
568
569config GPIO_STP_XWAY
570 bool "XWAY STP GPIOs"
571 depends on SOC_XWAY
572 help
573 This enables support for the Serial To Parallel (STP) unit found on
574 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
575 that can be up to 24 bit. This peripheral is aimed at driving leds.
576 Some of the gpios/leds can be auto updated by the soc with dsl and
577 phy status.
578
579config GPIO_TC3589X
580 bool "TC3589X GPIOs"
581 depends on MFD_TC3589X
582 help
583 This enables support for the GPIOs found on the TC3589X
584 I/O Expander.
585
586config GPIO_TPS65912
587 tristate "TI TPS65912 GPIO"
588 depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
589 help
590 This driver supports TPS65912 gpio chip
591
592config GPIO_TWL4030
593 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
594 depends on TWL4030_CORE
595 help
596 Say yes here to access the GPIO signals of various multi-function
597 power management chips from Texas Instruments.
598
599config GPIO_TWL6040
600 tristate "TWL6040 GPO"
601 depends on TWL6040_CORE
602 help
603 Say yes here to access the GPO signals of twl6040
604 audio chip from Texas Instruments.
605
606config GPIO_WM831X
607 tristate "WM831x GPIOs"
608 depends on MFD_WM831X
609 help
610 Say yes here to access the GPIO signals of WM831x power management
611 chips from Wolfson Microelectronics.
612
613config GPIO_WM8350
614 tristate "WM8350 GPIOs"
615 depends on MFD_WM8350
616 help
617 Say yes here to access the GPIO signals of WM8350 power management
618 chips from Wolfson Microelectronics.
619
620config GPIO_WM8994
621 tristate "WM8994 GPIOs"
622 depends on MFD_WM8994
623 help
624 Say yes here to access the GPIO signals of WM8994 audio hub
625 CODECs from Wolfson Microelectronics.
626
627config GPIO_ADP5520
628 tristate "GPIO Support for ADP5520 PMIC"
629 depends on PMIC_ADP5520
630 help
631 This option enables support for on-chip GPIO found
632 on Analog Devices ADP5520 PMICs.
633
634config GPIO_ADP5588
635 tristate "ADP5588 I2C GPIO expander"
636 depends on I2C
637 help
638 This option enables support for 18 GPIOs found
639 on Analog Devices ADP5588 GPIO Expanders.
640
641config GPIO_ADP5588_IRQ
642 bool "Interrupt controller support for ADP5588"
643 depends on GPIO_ADP5588=y
644 help
645 Say yes here to enable the adp5588 to be used as an interrupt
646 controller. It requires the driver to be built in the kernel.
647
648config GPIO_ADNP
649 tristate "Avionic Design N-bit GPIO expander"
650 depends on I2C && OF_GPIO
651 help
652 This option enables support for N GPIOs found on Avionic Design
653 I2C GPIO expanders. The register space will be extended by powers
654 of two, so the controller will need to accommodate for that. For
655 example: if a controller provides 48 pins, 6 registers will be
656 enough to represent all pins, but the driver will assume a
657 register layout for 64 pins (8 registers).
658
659comment "PCI GPIO expanders:"
660
661config GPIO_CS5535
662 tristate "AMD CS5535/CS5536 GPIO support"
663 depends on MFD_CS5535
664 help
665 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
666 can be used for quite a number of things. The CS5535/6 is found on
667 AMD Geode and Lemote Yeeloong devices.
668
669 If unsure, say N.
670
671config GPIO_BT8XX
672 tristate "BT8XX GPIO abuser"
673 depends on PCI && VIDEO_BT848=n
674 help
675 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
676 as a cheap PCI GPIO card.
677
678 This chip can be found on Miro, Hauppauge and STB TV-cards.
679
680 The card needs to be physically altered for using it as a
681 GPIO card. For more information on how to build a GPIO card
682 from a BT8xx TV card, see the documentation file at
683 Documentation/bt8xxgpio.txt
684
685 If unsure, say N.
686
687config GPIO_AMD8111
688 tristate "AMD 8111 GPIO driver"
689 depends on PCI
690 help
691 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
692
693 Note, that usually system firmware/ACPI handles GPIO pins on their
694 own and users might easily break their systems with uncarefull usage
695 of this driver!
696
697 If unsure, say N
698
699config GPIO_INTEL_MID
700 bool "Intel Mid GPIO support"
701 depends on PCI && X86
702 select IRQ_DOMAIN
703 help
704 Say Y here to support Intel Mid GPIO.
705
706config GPIO_PCH
707 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
708 depends on PCI && X86
709 select GENERIC_IRQ_CHIP
710 help
711 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
712 which is an IOH(Input/Output Hub) for x86 embedded processor.
713 This driver can access PCH GPIO device.
714
715 This driver also can be used for LAPIS Semiconductor IOH(Input/
716 Output Hub), ML7223 and ML7831.
717 ML7223 IOH is for MP(Media Phone) use.
718 ML7831 IOH is for general purpose use.
719 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
720 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
721
722config GPIO_ML_IOH
723 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
724 depends on PCI
725 select GENERIC_IRQ_CHIP
726 help
727 ML7213 is companion chip for Intel Atom E6xx series.
728 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
729 Hub) which is for IVI(In-Vehicle Infotainment) use.
730 This driver can access the IOH's GPIO device.
731
732config GPIO_SODAVILLE
733 bool "Intel Sodaville GPIO support"
734 depends on X86 && PCI && OF
735 select GPIO_GENERIC
736 select GENERIC_IRQ_CHIP
737 help
738 Say Y here to support Intel Sodaville GPIO.
739
740config GPIO_TIMBERDALE
741 bool "Support for timberdale GPIO IP"
742 depends on MFD_TIMBERDALE && HAS_IOMEM
743 ---help---
744 Add support for the GPIO IP in the timberdale FPGA.
745
746config GPIO_RDC321X
747 tristate "RDC R-321x GPIO support"
748 depends on PCI
749 select MFD_CORE
750 select MFD_RDC321X
751 help
752 Support for the RDC R321x SoC GPIOs over southbridge
753 PCI configuration space.
754
755comment "SPI GPIO expanders:"
756
757config GPIO_MAX7301
758 tristate "Maxim MAX7301 GPIO expander"
759 depends on SPI_MASTER
760 select GPIO_MAX730X
761 help
762 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
763
764config GPIO_MCP23S08
765 tristate "Microchip MCP23xxx I/O expander"
766 depends on OF_GPIO
767 depends on (SPI_MASTER && !I2C) || I2C
768 help
769 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
770 I/O expanders.
771 This provides a GPIO interface supporting inputs and outputs.
772 The I2C versions of the chips can be used as interrupt-controller.
773
774config GPIO_MC33880
775 tristate "Freescale MC33880 high-side/low-side switch"
776 depends on SPI_MASTER
777 help
778 SPI driver for Freescale MC33880 high-side/low-side switch.
779 This provides GPIO interface supporting inputs and outputs.
780
781config GPIO_74X164
782 tristate "74x164 serial-in/parallel-out 8-bits shift register"
783 depends on SPI_MASTER && OF
784 help
785 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
786 shift registers. This driver can be used to provide access
787 to more gpio outputs.
788
789comment "AC97 GPIO expanders:"
790
791config GPIO_UCB1400
792 tristate "Philips UCB1400 GPIO"
793 depends on UCB1400_CORE
794 help
795 This enables support for the Philips UCB1400 GPIO pins.
796 The UCB1400 is an AC97 audio codec.
797
798comment "LPC GPIO expanders:"
799
800config GPIO_KEMPLD
801 tristate "Kontron ETX / COMexpress GPIO"
802 depends on MFD_KEMPLD
803 help
804 This enables support for the PLD GPIO interface on some Kontron ETX
805 and COMexpress (ETXexpress) modules.
806
807 This driver can also be built as a module. If so, the module will be
808 called gpio-kempld.
809
810comment "MODULbus GPIO expanders:"
811
812config GPIO_JANZ_TTL
813 tristate "Janz VMOD-TTL Digital IO Module"
814 depends on MFD_JANZ_CMODIO
815 help
816 This enables support for the Janz VMOD-TTL Digital IO module.
817 This driver provides support for driving the pins in output
818 mode only. Input mode is not supported.
819
820config GPIO_PALMAS
821 bool "TI PALMAS series PMICs GPIO"
822 depends on MFD_PALMAS
823 help
824 Select this option to enable GPIO driver for the TI PALMAS
825 series chip family.
826
827config GPIO_TPS6586X
828 bool "TPS6586X GPIO"
829 depends on MFD_TPS6586X
830 help
831 Select this option to enable GPIO driver for the TPS6586X
832 chip family.
833
834config GPIO_TPS65910
835 bool "TPS65910 GPIO"
836 depends on MFD_TPS65910
837 help
838 Select this option to enable GPIO driver for the TPS65910
839 chip family.
840
841config GPIO_MSIC
842 bool "Intel MSIC mixed signal gpio support"
843 depends on MFD_INTEL_MSIC
844 help
845 Enable support for GPIO on intel MSIC controllers found in
846 intel MID devices
847
848config GPIO_BCM_KONA
849 bool "Broadcom Kona GPIO"
850 depends on OF_GPIO
851 help
852 Turn on GPIO support for Broadcom "Kona" chips.
853
854comment "USB GPIO expanders:"
855
856config GPIO_VIPERBOARD
857 tristate "Viperboard GPIO a & b support"
858 depends on MFD_VIPERBOARD && USB
859 help
860 Say yes here to access the GPIO signals of Nano River
861 Technologies Viperboard. There are two GPIO chips on the
862 board: gpioa and gpiob.
863 See viperboard API specification and Nano
864 River Tech's viperboard.h for detailed meaning
865 of the module parameters.
866
867endif
1#
2# GPIO infrastructure and drivers
3#
4
5config 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
13menuconfig GPIOLIB
14 bool "GPIO Support"
15 select ANON_INODES
16 help
17 This enables GPIO support through the generic GPIO library.
18 You only need to enable this, if you also want to enable
19 one or more of the GPIO drivers below.
20
21 If unsure, say N.
22
23if GPIOLIB
24
25config OF_GPIO
26 def_bool y
27 depends on OF
28 depends on HAS_IOMEM
29
30config GPIO_ACPI
31 def_bool y
32 depends on ACPI
33
34config GPIOLIB_IRQCHIP
35 select IRQ_DOMAIN
36 bool
37
38config DEBUG_GPIO
39 bool "Debug GPIO calls"
40 depends on DEBUG_KERNEL
41 help
42 Say Y here to add some extra checks and diagnostics to GPIO calls.
43 These checks help ensure that GPIOs have been properly initialized
44 before they are used, and that sleeping calls are not made from
45 non-sleeping contexts. They can make bitbanged serial protocols
46 slower. The diagnostics help catch the type of setup errors
47 that are most common when setting up new platforms or boards.
48
49config GPIO_SYSFS
50 bool "/sys/class/gpio/... (sysfs interface)"
51 depends on SYSFS
52 help
53 Say Y here to add a sysfs interface for GPIOs.
54
55 This is mostly useful to work around omissions in a system's
56 kernel support. Those are common in custom and semicustom
57 hardware assembled using standard kernels with a minimum of
58 custom patches. In those cases, userspace code may import
59 a given GPIO from the kernel, if no kernel driver requested it.
60
61 Kernel drivers may also request that a particular GPIO be
62 exported to userspace; this can be useful when debugging.
63
64config GPIO_GENERIC
65 depends on HAS_IOMEM # Only for IOMEM drivers
66 tristate
67
68# put drivers in the right section, in alphabetical order
69
70# This symbol is selected by both I2C and SPI expanders
71config GPIO_MAX730X
72 tristate
73
74menu "Memory mapped GPIO drivers"
75 depends on HAS_IOMEM
76
77config GPIO_74XX_MMIO
78 tristate "GPIO driver for 74xx-ICs with MMIO access"
79 depends on OF_GPIO
80 select GPIO_GENERIC
81 help
82 Say yes here to support GPIO functionality for 74xx-compatible ICs
83 with MMIO access. Compatible models include:
84 1 bit: 741G125 (Input), 741G74 (Output)
85 2 bits: 742G125 (Input), 7474 (Output)
86 4 bits: 74125 (Input), 74175 (Output)
87 6 bits: 74365 (Input), 74174 (Output)
88 8 bits: 74244 (Input), 74273 (Output)
89 16 bits: 741624 (Input), 7416374 (Output)
90
91config GPIO_ALTERA
92 tristate "Altera GPIO"
93 depends on OF_GPIO
94 select GPIOLIB_IRQCHIP
95 help
96 Say Y or M here to build support for the Altera PIO device.
97
98 If driver is built as a module it will be called gpio-altera.
99
100config GPIO_AMDPT
101 tristate "AMD Promontory GPIO support"
102 depends on ACPI
103 select GPIO_GENERIC
104 help
105 driver for GPIO functionality on Promontory IOHub
106 Require ACPI ASL code to enumerate as a platform device.
107
108config GPIO_ASPEED
109 tristate "Aspeed GPIO support"
110 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
111 select GPIOLIB_IRQCHIP
112 help
113 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
114
115config GPIO_ATH79
116 tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
117 default y if ATH79
118 depends on ATH79 || COMPILE_TEST
119 select GPIO_GENERIC
120 select GPIOLIB_IRQCHIP
121 help
122 Select this option to enable GPIO driver for
123 Atheros AR71XX/AR724X/AR913X SoC devices.
124
125config GPIO_RASPBERRYPI_EXP
126 tristate "Raspberry Pi 3 GPIO Expander"
127 default RASPBERRYPI_FIRMWARE
128 depends on OF_GPIO
129 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
130 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
131 depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
132 help
133 Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
134 the firmware mailbox to communicate with VideoCore on BCM283x chips.
135
136config GPIO_BCM_KONA
137 bool "Broadcom Kona GPIO"
138 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
139 help
140 Turn on GPIO support for Broadcom "Kona" chips.
141
142config GPIO_BRCMSTB
143 tristate "BRCMSTB GPIO support"
144 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
145 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
146 select GPIO_GENERIC
147 select IRQ_DOMAIN
148 help
149 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
150
151config GPIO_CLPS711X
152 tristate "CLPS711X GPIO support"
153 depends on ARCH_CLPS711X || COMPILE_TEST
154 select GPIO_GENERIC
155 help
156 Say yes here to support GPIO on CLPS711X SoCs.
157
158config GPIO_DAVINCI
159 bool "TI Davinci/Keystone GPIO support"
160 default y if ARCH_DAVINCI
161 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
162 help
163 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
164
165config GPIO_DWAPB
166 tristate "Synopsys DesignWare APB GPIO driver"
167 select GPIO_GENERIC
168 select GENERIC_IRQ_CHIP
169 help
170 Say Y or M here to build support for the Synopsys DesignWare APB
171 GPIO block.
172
173config GPIO_EIC_SPRD
174 tristate "Spreadtrum EIC support"
175 depends on ARCH_SPRD || COMPILE_TEST
176 depends on OF_GPIO
177 select GPIOLIB_IRQCHIP
178 help
179 Say yes here to support Spreadtrum EIC device.
180
181config GPIO_EM
182 tristate "Emma Mobile GPIO"
183 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
184 help
185 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
186
187config GPIO_EP93XX
188 def_bool y
189 depends on ARCH_EP93XX
190 select GPIO_GENERIC
191
192config GPIO_EXAR
193 tristate "Support for GPIO pins on XR17V352/354/358"
194 depends on SERIAL_8250_EXAR
195 help
196 Selecting this option will enable handling of GPIO pins present
197 on Exar XR17V352/354/358 chips.
198
199config GPIO_GE_FPGA
200 bool "GE FPGA based GPIO"
201 depends on GE_FPGA
202 select GPIO_GENERIC
203 help
204 Support for common GPIO functionality provided on some GE Single Board
205 Computers.
206
207 This driver provides basic support (configure as input or output, read
208 and write pin state) for GPIO implemented in a number of GE single
209 board computers.
210
211config GPIO_FTGPIO010
212 bool "Faraday FTGPIO010 GPIO"
213 depends on OF_GPIO
214 select GPIO_GENERIC
215 select GPIOLIB_IRQCHIP
216 default (ARCH_GEMINI || ARCH_MOXART)
217 help
218 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
219 Cortina systems Gemini platforms, Moxa ART and others.
220
221config GPIO_GENERIC_PLATFORM
222 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
223 select GPIO_GENERIC
224 help
225 Say yes here to support basic platform_device memory-mapped GPIO controllers.
226
227config GPIO_GRGPIO
228 tristate "Aeroflex Gaisler GRGPIO support"
229 depends on OF_GPIO
230 select GPIO_GENERIC
231 select IRQ_DOMAIN
232 help
233 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
234 VHDL IP core library.
235
236config GPIO_HLWD
237 tristate "Nintendo Wii (Hollywood) GPIO"
238 depends on OF_GPIO
239 select GPIO_GENERIC
240 help
241 Select this to support the GPIO controller of the Nintendo Wii.
242
243 If unsure, say N.
244
245config GPIO_ICH
246 tristate "Intel ICH GPIO"
247 depends on PCI && X86
248 select MFD_CORE
249 select LPC_ICH
250 help
251 Say yes here to support the GPIO functionality of a number of Intel
252 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
253 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
254 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
255
256 If unsure, say N.
257
258config GPIO_INGENIC
259 tristate "Ingenic JZ47xx SoCs GPIO support"
260 depends on OF
261 depends on MACH_INGENIC || COMPILE_TEST
262 select GPIOLIB_IRQCHIP
263 help
264 Say yes here to support the GPIO functionality present on the
265 JZ4740 and JZ4780 SoCs from Ingenic.
266
267 If unsure, say N.
268
269config GPIO_IOP
270 tristate "Intel IOP GPIO"
271 depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST
272 select GPIO_GENERIC
273 help
274 Say yes here to support the GPIO functionality of a number of Intel
275 IOP32X or IOP33X.
276
277 If unsure, say N.
278
279config GPIO_LOONGSON
280 bool "Loongson-2/3 GPIO support"
281 depends on CPU_LOONGSON2 || CPU_LOONGSON3
282 help
283 driver for GPIO functionality on Loongson-2F/3A/3B processors.
284
285config GPIO_LPC18XX
286 tristate "NXP LPC18XX/43XX GPIO support"
287 default y if ARCH_LPC18XX
288 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
289 help
290 Select this option to enable GPIO driver for
291 NXP LPC18XX/43XX devices.
292
293config GPIO_LYNXPOINT
294 tristate "Intel Lynxpoint GPIO support"
295 depends on ACPI && X86
296 select GPIOLIB_IRQCHIP
297 help
298 driver for GPIO functionality on Intel Lynxpoint PCH chipset
299 Requires ACPI device enumeration code to set up a platform device.
300
301config GPIO_MB86S7X
302 tristate "GPIO support for Fujitsu MB86S7x Platforms"
303 help
304 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
305
306config GPIO_MENZ127
307 tristate "MEN 16Z127 GPIO support"
308 depends on MCB
309 select GPIO_GENERIC
310 help
311 Say yes here to support the MEN 16Z127 GPIO Controller
312
313config GPIO_MM_LANTIQ
314 bool "Lantiq Memory mapped GPIOs"
315 depends on LANTIQ && SOC_XWAY
316 help
317 This enables support for memory mapped GPIOs on the External Bus Unit
318 (EBU) found on Lantiq SoCs. The gpios are output only as they are
319 created by attaching a 16bit latch to the bus.
320
321config GPIO_MOCKUP
322 tristate "GPIO Testing Driver"
323 depends on GPIOLIB && SYSFS
324 select GPIO_SYSFS
325 select GPIOLIB_IRQCHIP
326 select IRQ_SIM
327 help
328 This enables GPIO Testing driver, which provides a way to test GPIO
329 subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
330 must be selected for this test.
331 User could use it through the script in
332 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
333 it.
334
335config GPIO_MPC5200
336 def_bool y
337 depends on PPC_MPC52xx
338
339config GPIO_MPC8XXX
340 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
341 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
342 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
343 COMPILE_TEST
344 select GPIO_GENERIC
345 select IRQ_DOMAIN
346 help
347 Say Y here if you're going to use hardware that connects to the
348 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
349
350config GPIO_MVEBU
351 def_bool y
352 depends on PLAT_ORION || ARCH_MVEBU
353 depends on OF_GPIO
354 select GENERIC_IRQ_CHIP
355 select REGMAP_MMIO
356
357config GPIO_MXC
358 def_bool y
359 depends on ARCH_MXC
360 select GPIO_GENERIC
361 select GENERIC_IRQ_CHIP
362
363config GPIO_MXS
364 def_bool y
365 depends on ARCH_MXS
366 select GPIO_GENERIC
367 select GENERIC_IRQ_CHIP
368
369config GPIO_OCTEON
370 tristate "Cavium OCTEON GPIO"
371 depends on GPIOLIB && CAVIUM_OCTEON_SOC
372 default y
373 help
374 Say yes here to support the on-chip GPIO lines on the OCTEON
375 family of SOCs.
376
377config GPIO_OMAP
378 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
379 default y if ARCH_OMAP
380 depends on ARM
381 select GENERIC_IRQ_CHIP
382 select GPIOLIB_IRQCHIP
383 help
384 Say yes here to enable GPIO support for TI OMAP SoCs.
385
386config GPIO_PL061
387 bool "PrimeCell PL061 GPIO support"
388 depends on ARM_AMBA
389 select IRQ_DOMAIN
390 select GPIOLIB_IRQCHIP
391 help
392 Say yes here to support the PrimeCell PL061 GPIO device
393
394config GPIO_PMIC_EIC_SPRD
395 tristate "Spreadtrum PMIC EIC support"
396 depends on MFD_SC27XX_PMIC || COMPILE_TEST
397 depends on OF_GPIO
398 select GPIOLIB_IRQCHIP
399 help
400 Say yes here to support Spreadtrum PMIC EIC device.
401
402config GPIO_PXA
403 bool "PXA GPIO support"
404 depends on ARCH_PXA || ARCH_MMP
405 help
406 Say yes here to support the PXA GPIO device
407
408config GPIO_RCAR
409 tristate "Renesas R-Car GPIO"
410 depends on ARCH_RENESAS || COMPILE_TEST
411 select GPIOLIB_IRQCHIP
412 help
413 Say yes here to support GPIO on Renesas R-Car SoCs.
414
415config GPIO_REG
416 bool
417 help
418 A 32-bit single register GPIO fixed in/out implementation. This
419 can be used to represent any register as a set of GPIO signals.
420
421config GPIO_SPEAR_SPICS
422 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
423 depends on PLAT_SPEAR
424 select GENERIC_IRQ_CHIP
425 help
426 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
427
428config GPIO_SPRD
429 tristate "Spreadtrum GPIO support"
430 depends on ARCH_SPRD || COMPILE_TEST
431 depends on OF_GPIO
432 select GPIOLIB_IRQCHIP
433 help
434 Say yes here to support Spreadtrum GPIO device.
435
436config GPIO_STA2X11
437 bool "STA2x11/ConneXt GPIO support"
438 depends on MFD_STA2X11
439 select GENERIC_IRQ_CHIP
440 help
441 Say yes here to support the STA2x11/ConneXt GPIO device.
442 The GPIO module has 128 GPIO pins with alternate functions.
443
444config GPIO_STP_XWAY
445 bool "XWAY STP GPIOs"
446 depends on SOC_XWAY
447 help
448 This enables support for the Serial To Parallel (STP) unit found on
449 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
450 that can be up to 24 bit. This peripheral is aimed at driving leds.
451 Some of the gpios/leds can be auto updated by the soc with dsl and
452 phy status.
453
454config GPIO_SYSCON
455 tristate "GPIO based on SYSCON"
456 depends on MFD_SYSCON && OF
457 help
458 Say yes here to support GPIO functionality though SYSCON driver.
459
460config GPIO_TB10X
461 bool
462 select GENERIC_IRQ_CHIP
463 select OF_GPIO
464
465config GPIO_TEGRA
466 bool "NVIDIA Tegra GPIO support"
467 default ARCH_TEGRA
468 depends on ARCH_TEGRA || COMPILE_TEST
469 depends on OF_GPIO
470 help
471 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
472
473config GPIO_TEGRA186
474 tristate "NVIDIA Tegra186 GPIO support"
475 default ARCH_TEGRA_186_SOC
476 depends on ARCH_TEGRA_186_SOC || COMPILE_TEST
477 depends on OF_GPIO
478 select GPIOLIB_IRQCHIP
479 help
480 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
481
482config GPIO_TS4800
483 tristate "TS-4800 DIO blocks and compatibles"
484 depends on OF_GPIO
485 depends on SOC_IMX51 || COMPILE_TEST
486 select GPIO_GENERIC
487 help
488 This driver support TS-4800 FPGA GPIO controllers.
489
490config GPIO_THUNDERX
491 tristate "Cavium ThunderX/OCTEON-TX GPIO"
492 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
493 depends on PCI_MSI
494 select IRQ_DOMAIN_HIERARCHY
495 select IRQ_FASTEOI_HIERARCHY_HANDLERS
496 help
497 Say yes here to support the on-chip GPIO lines on the ThunderX
498 and OCTEON-TX families of SoCs.
499
500config GPIO_UNIPHIER
501 tristate "UniPhier GPIO support"
502 depends on ARCH_UNIPHIER || COMPILE_TEST
503 depends on OF_GPIO
504 select IRQ_DOMAIN_HIERARCHY
505 help
506 Say yes here to support UniPhier GPIOs.
507
508config GPIO_VF610
509 def_bool y
510 depends on ARCH_MXC && SOC_VF610
511 select GPIOLIB_IRQCHIP
512 help
513 Say yes here to support Vybrid vf610 GPIOs.
514
515config GPIO_VR41XX
516 tristate "NEC VR4100 series General-purpose I/O Uint support"
517 depends on CPU_VR41XX
518 help
519 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
520
521config GPIO_VX855
522 tristate "VIA VX855/VX875 GPIO"
523 depends on (X86 || COMPILE_TEST) && PCI
524 select MFD_CORE
525 select MFD_VX855
526 help
527 Support access to the VX855/VX875 GPIO lines through the gpio library.
528
529 This driver provides common support for accessing the device,
530 additional drivers must be enabled in order to use the
531 functionality of the device.
532
533config GPIO_XGENE
534 bool "APM X-Gene GPIO controller support"
535 depends on ARM64 && OF_GPIO
536 help
537 This driver is to support the GPIO block within the APM X-Gene SoC
538 platform's generic flash controller. The GPIO pins are muxed with
539 the generic flash controller's address and data pins. Say yes
540 here to enable the GFC GPIO functionality.
541
542config GPIO_XGENE_SB
543 tristate "APM X-Gene GPIO standby controller support"
544 depends on ARCH_XGENE && OF_GPIO
545 select GPIO_GENERIC
546 select GPIOLIB_IRQCHIP
547 select IRQ_DOMAIN_HIERARCHY
548 help
549 This driver supports the GPIO block within the APM X-Gene
550 Standby Domain. Say yes here to enable the GPIO functionality.
551
552config GPIO_XILINX
553 tristate "Xilinx GPIO support"
554 depends on OF_GPIO
555 help
556 Say yes here to support the Xilinx FPGA GPIO device
557
558config GPIO_XLP
559 tristate "Netlogic XLP GPIO support"
560 depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
561 select GPIOLIB_IRQCHIP
562 help
563 This driver provides support for GPIO interface on Netlogic XLP MIPS64
564 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
565 XLP9XX and XLP5XX. The same GPIO controller block is also present in
566 Cavium's ThunderX2 CN99XX SoCs.
567
568 If unsure, say N.
569
570config GPIO_XTENSA
571 bool "Xtensa GPIO32 support"
572 depends on XTENSA
573 depends on HAVE_XTENSA_GPIO32
574 depends on !SMP
575 help
576 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
577 and EXPSTATE (output) ports
578
579config GPIO_ZEVIO
580 bool "LSI ZEVIO SoC memory mapped GPIOs"
581 depends on ARM && OF_GPIO
582 help
583 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
584
585config GPIO_ZYNQ
586 tristate "Xilinx Zynq GPIO support"
587 depends on ARCH_ZYNQ || ARCH_ZYNQMP
588 select GPIOLIB_IRQCHIP
589 help
590 Say yes here to support Xilinx Zynq GPIO controller.
591
592config GPIO_ZX
593 bool "ZTE ZX GPIO support"
594 depends on ARCH_ZX || COMPILE_TEST
595 select GPIOLIB_IRQCHIP
596 help
597 Say yes here to support the GPIO device on ZTE ZX SoCs.
598
599config GPIO_LOONGSON1
600 tristate "Loongson1 GPIO support"
601 depends on MACH_LOONGSON32
602 select GPIO_GENERIC
603 help
604 Say Y or M here to support GPIO on Loongson1 SoCs.
605
606endmenu
607
608menu "Port-mapped I/O GPIO drivers"
609 depends on X86 # Unconditional I/O space access
610
611config GPIO_104_DIO_48E
612 tristate "ACCES 104-DIO-48E GPIO support"
613 depends on PC104
614 select ISA_BUS_API
615 select GPIOLIB_IRQCHIP
616 help
617 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
618 104-DIO-24E). The base port addresses for the devices may be
619 configured via the base module parameter. The interrupt line numbers
620 for the devices may be configured via the irq module parameter.
621
622config GPIO_104_IDIO_16
623 tristate "ACCES 104-IDIO-16 GPIO support"
624 depends on PC104
625 select ISA_BUS_API
626 select GPIOLIB_IRQCHIP
627 help
628 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
629 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
630 base port addresses for the devices may be configured via the base
631 module parameter. The interrupt line numbers for the devices may be
632 configured via the irq module parameter.
633
634config GPIO_104_IDI_48
635 tristate "ACCES 104-IDI-48 GPIO support"
636 depends on PC104
637 select ISA_BUS_API
638 select GPIOLIB_IRQCHIP
639 help
640 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
641 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
642 the devices may be configured via the base module parameter. The
643 interrupt line numbers for the devices may be configured via the irq
644 module parameter.
645
646config GPIO_F7188X
647 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
648 help
649 This option enables support for GPIOs found on Fintek Super-I/O
650 chips F71869, F71869A, F71882FG, F71889F and F81866.
651
652 To compile this driver as a module, choose M here: the module will
653 be called f7188x-gpio.
654
655config GPIO_GPIO_MM
656 tristate "Diamond Systems GPIO-MM GPIO support"
657 depends on PC104
658 select ISA_BUS_API
659 help
660 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
661
662 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
663 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
664 support for these 48 channels of digital I/O.
665
666 The base port addresses for the devices may be configured via the base
667 array module parameter.
668
669config GPIO_IT87
670 tristate "IT87xx GPIO support"
671 help
672 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
673
674 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
675 supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
676
677 To compile this driver as a module, choose M here: the module will
678 be called gpio_it87
679
680config GPIO_SCH
681 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
682 depends on (X86 || COMPILE_TEST) && PCI
683 select MFD_CORE
684 select LPC_SCH
685 help
686 Say yes here to support GPIO interface on Intel Poulsbo SCH,
687 Intel Tunnel Creek processor, Intel Centerton processor or
688 Intel Quark X1000 SoC.
689
690 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
691 powered by the core power rail and are turned off during sleep
692 modes (S3 and higher). The remaining four GPIOs are powered by
693 the Intel SCH suspend power supply. These GPIOs remain
694 active during S3. The suspend powered GPIOs can be used to wake the
695 system from the Suspend-to-RAM state.
696
697 The Intel Tunnel Creek processor has 5 GPIOs powered by the
698 core power rail and 9 from suspend power supply.
699
700 The Intel Centerton processor has a total of 30 GPIO pins.
701 Twenty-one are powered by the core power rail and 9 from the
702 suspend power supply.
703
704 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
705 power well and 6 from the suspend power well.
706
707config GPIO_SCH311X
708 tristate "SMSC SCH311x SuperI/O GPIO"
709 help
710 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
711 SCH3116 "Super I/O" chipsets.
712
713 To compile this driver as a module, choose M here: the module will
714 be called gpio-sch311x.
715
716config GPIO_TS5500
717 tristate "TS-5500 DIO blocks and compatibles"
718 depends on TS5500 || COMPILE_TEST
719 help
720 This driver supports Digital I/O exposed by pin blocks found on some
721 Technologic Systems platforms. It includes, but is not limited to, 3
722 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
723 LCD port.
724
725config GPIO_WINBOND
726 tristate "Winbond Super I/O GPIO support"
727 select ISA_BUS_API
728 help
729 This option enables support for GPIOs found on Winbond Super I/O
730 chips.
731 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
732 supported.
733
734 You will need to provide a module parameter "gpios", or a
735 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
736 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
737
738 To compile this driver as a module, choose M here: the module will
739 be called gpio-winbond.
740
741config GPIO_WS16C48
742 tristate "WinSystems WS16C48 GPIO support"
743 select ISA_BUS_API
744 select GPIOLIB_IRQCHIP
745 help
746 Enables GPIO support for the WinSystems WS16C48. The base port
747 addresses for the devices may be configured via the base module
748 parameter. The interrupt line numbers for the devices may be
749 configured via the irq module parameter.
750
751endmenu
752
753menu "I2C GPIO expanders"
754 depends on I2C
755
756config GPIO_ADP5588
757 tristate "ADP5588 I2C GPIO expander"
758 help
759 This option enables support for 18 GPIOs found
760 on Analog Devices ADP5588 GPIO Expanders.
761
762config GPIO_ADP5588_IRQ
763 bool "Interrupt controller support for ADP5588"
764 depends on GPIO_ADP5588=y
765 help
766 Say yes here to enable the adp5588 to be used as an interrupt
767 controller. It requires the driver to be built in the kernel.
768
769config GPIO_ADNP
770 tristate "Avionic Design N-bit GPIO expander"
771 depends on OF_GPIO
772 select GPIOLIB_IRQCHIP
773 help
774 This option enables support for N GPIOs found on Avionic Design
775 I2C GPIO expanders. The register space will be extended by powers
776 of two, so the controller will need to accommodate for that. For
777 example: if a controller provides 48 pins, 6 registers will be
778 enough to represent all pins, but the driver will assume a
779 register layout for 64 pins (8 registers).
780
781config GPIO_MAX7300
782 tristate "Maxim MAX7300 GPIO expander"
783 select GPIO_MAX730X
784 help
785 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
786
787config GPIO_MAX732X
788 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
789 help
790 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
791 Port Expanders. Each IO port on these chips has a fixed role of
792 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
793 Input and Output (designed by 'P'). The combinations are listed
794 below:
795
796 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
797 max7322 (4I4O), max7323 (4P4O)
798
799 16 bits: max7324 (8I8O), max7325 (8P8O),
800 max7326 (4I12O), max7327 (4P12O)
801
802 Board setup code must specify the model to use, and the start
803 number for these GPIOs.
804
805config GPIO_MAX732X_IRQ
806 bool "Interrupt controller support for MAX732x"
807 depends on GPIO_MAX732X=y
808 select GPIOLIB_IRQCHIP
809 help
810 Say yes here to enable the max732x to be used as an interrupt
811 controller. It requires the driver to be built in the kernel.
812
813config GPIO_MC9S08DZ60
814 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
815 depends on I2C=y && MACH_MX35_3DS
816 help
817 Select this to enable the MC9S08DZ60 GPIO driver
818
819config GPIO_PCA953X
820 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
821 help
822 Say yes here to provide access to several register-oriented
823 SMBus I/O expanders, made mostly by NXP or TI. Compatible
824 models include:
825
826 4 bits: pca9536, pca9537
827
828 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
829 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
830
831 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
832 tca6416
833
834 24 bits: tca6424
835
836 40 bits: pca9505, pca9698
837
838config GPIO_PCA953X_IRQ
839 bool "Interrupt controller support for PCA953x"
840 depends on GPIO_PCA953X=y
841 select GPIOLIB_IRQCHIP
842 help
843 Say yes here to enable the pca953x to be used as an interrupt
844 controller. It requires the driver to be built in the kernel.
845
846config GPIO_PCF857X
847 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
848 select GPIOLIB_IRQCHIP
849 select IRQ_DOMAIN
850 help
851 Say yes here to provide access to most "quasi-bidirectional" I2C
852 GPIO expanders used for additional digital outputs or inputs.
853 Most of these parts are from NXP, though TI is a second source for
854 some of them. Compatible models include:
855
856 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
857 pca9670, pca9672, pca9674, pca9674a,
858 max7328, max7329
859
860 16 bits: pcf8575, pcf8575c, pca8575,
861 pca9671, pca9673, pca9675
862
863 Your board setup code will need to declare the expanders in
864 use, and assign numbers to the GPIOs they expose. Those GPIOs
865 can then be used from drivers and other kernel code, just like
866 other GPIOs, but only accessible from task contexts.
867
868 This driver provides an in-kernel interface to those GPIOs using
869 platform-neutral GPIO calls.
870
871config GPIO_TPIC2810
872 tristate "TPIC2810 8-Bit I2C GPO expander"
873 help
874 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
875
876 To compile this driver as a module, choose M here: the module will
877 be called gpio-tpic2810.
878
879config GPIO_TS4900
880 tristate "Technologic Systems FPGA I2C GPIO"
881 depends on SOC_IMX6 || COMPILE_TEST
882 select REGMAP_I2C
883 help
884 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
885 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
886
887endmenu
888
889menu "MFD GPIO expanders"
890
891config GPIO_ADP5520
892 tristate "GPIO Support for ADP5520 PMIC"
893 depends on PMIC_ADP5520
894 help
895 This option enables support for on-chip GPIO found
896 on Analog Devices ADP5520 PMICs.
897
898config GPIO_ALTERA_A10SR
899 tristate "Altera Arria10 System Resource GPIO"
900 depends on MFD_ALTERA_A10SR
901 help
902 Driver for Arria10 Development Kit GPIO expansion which
903 includes reads of pushbuttons and DIP switches as well
904 as writes to LEDs.
905
906config GPIO_ARIZONA
907 tristate "Wolfson Microelectronics Arizona class devices"
908 depends on MFD_ARIZONA
909 help
910 Support for GPIOs on Wolfson Arizona class devices.
911
912config GPIO_BD9571MWV
913 tristate "ROHM BD9571 GPIO support"
914 depends on MFD_BD9571MWV
915 help
916 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
917 available on the ROHM PMIC in total, both of which can also
918 generate interrupts.
919
920 This driver can also be built as a module. If so, the module
921 will be called gpio-bd9571mwv.
922
923config GPIO_CRYSTAL_COVE
924 tristate "GPIO support for Crystal Cove PMIC"
925 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
926 select GPIOLIB_IRQCHIP
927 help
928 Support for GPIO pins on Crystal Cove PMIC.
929
930 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
931 inside.
932
933 This driver can also be built as a module. If so, the module will be
934 called gpio-crystalcove.
935
936config GPIO_CS5535
937 tristate "AMD CS5535/CS5536 GPIO support"
938 depends on X86 || MIPS || COMPILE_TEST
939 depends on MFD_CS5535
940 help
941 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
942 can be used for quite a number of things. The CS5535/6 is found on
943 AMD Geode and Lemote Yeeloong devices.
944
945 If unsure, say N.
946
947config GPIO_DA9052
948 tristate "Dialog DA9052 GPIO"
949 depends on PMIC_DA9052
950 help
951 Say yes here to enable the GPIO driver for the DA9052 chip.
952
953config GPIO_DA9055
954 tristate "Dialog Semiconductor DA9055 GPIO"
955 depends on MFD_DA9055
956 help
957 Say yes here to enable the GPIO driver for the DA9055 chip.
958
959 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
960 be controller by this driver.
961
962 If driver is built as a module it will be called gpio-da9055.
963
964config GPIO_DLN2
965 tristate "Diolan DLN2 GPIO support"
966 depends on MFD_DLN2
967 select GPIOLIB_IRQCHIP
968
969 help
970 Select this option to enable GPIO driver for the Diolan DLN2
971 board.
972
973 This driver can also be built as a module. If so, the module
974 will be called gpio-dln2.
975
976config HTC_EGPIO
977 bool "HTC EGPIO support"
978 depends on GPIOLIB && ARM
979 help
980 This driver supports the CPLD egpio chip present on
981 several HTC phones. It provides basic support for input
982 pins, output pins, and irqs.
983
984config GPIO_JANZ_TTL
985 tristate "Janz VMOD-TTL Digital IO Module"
986 depends on MFD_JANZ_CMODIO
987 help
988 This enables support for the Janz VMOD-TTL Digital IO module.
989 This driver provides support for driving the pins in output
990 mode only. Input mode is not supported.
991
992config GPIO_KEMPLD
993 tristate "Kontron ETX / COMexpress GPIO"
994 depends on MFD_KEMPLD
995 help
996 This enables support for the PLD GPIO interface on some Kontron ETX
997 and COMexpress (ETXexpress) modules.
998
999 This driver can also be built as a module. If so, the module will be
1000 called gpio-kempld.
1001
1002config GPIO_LP3943
1003 tristate "TI/National Semiconductor LP3943 GPIO expander"
1004 depends on MFD_LP3943
1005 help
1006 GPIO driver for LP3943 MFD.
1007 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1008 Open drain outputs are required for this usage.
1009
1010config GPIO_LP873X
1011 tristate "TI LP873X GPO"
1012 depends on MFD_TI_LP873X
1013 help
1014 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1015 on LP873X PMICs.
1016
1017 This driver can also be built as a module. If so, the module will be
1018 called gpio-lp873x.
1019
1020config GPIO_LP87565
1021 tristate "TI LP87565 GPIO"
1022 depends on MFD_TI_LP87565
1023 help
1024 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1025 on LP87565 PMICs.
1026
1027 This driver can also be built as a module. If so, the module will be
1028 called gpio-lp87565.
1029
1030config GPIO_MAX77620
1031 tristate "GPIO support for PMIC MAX77620 and MAX20024"
1032 depends on MFD_MAX77620
1033 help
1034 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1035 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1036 driver also provides interrupt support for each of the gpios.
1037 Say yes here to enable the max77620 to be used as gpio controller.
1038
1039config GPIO_MSIC
1040 bool "Intel MSIC mixed signal gpio support"
1041 depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
1042 help
1043 Enable support for GPIO on intel MSIC controllers found in
1044 intel MID devices
1045
1046config GPIO_PALMAS
1047 bool "TI PALMAS series PMICs GPIO"
1048 depends on MFD_PALMAS
1049 help
1050 Select this option to enable GPIO driver for the TI PALMAS
1051 series chip family.
1052
1053config GPIO_RC5T583
1054 bool "RICOH RC5T583 GPIO"
1055 depends on MFD_RC5T583
1056 help
1057 Select this option to enable GPIO driver for the Ricoh RC5T583
1058 chip family.
1059 This driver provides the support for driving/reading the gpio pins
1060 of RC5T583 device through standard gpio library.
1061
1062config GPIO_STMPE
1063 bool "STMPE GPIOs"
1064 depends on MFD_STMPE
1065 depends on OF_GPIO
1066 select GPIOLIB_IRQCHIP
1067 help
1068 This enables support for the GPIOs found on the STMPE I/O
1069 Expanders.
1070
1071config GPIO_TC3589X
1072 bool "TC3589X GPIOs"
1073 depends on MFD_TC3589X
1074 depends on OF_GPIO
1075 select GPIOLIB_IRQCHIP
1076 help
1077 This enables support for the GPIOs found on the TC3589X
1078 I/O Expander.
1079
1080config GPIO_TIMBERDALE
1081 bool "Support for timberdale GPIO IP"
1082 depends on MFD_TIMBERDALE
1083 ---help---
1084 Add support for the GPIO IP in the timberdale FPGA.
1085
1086config GPIO_TPS65086
1087 tristate "TI TPS65086 GPO"
1088 depends on MFD_TPS65086
1089 help
1090 This driver supports the GPO on TI TPS65086x PMICs.
1091
1092config GPIO_TPS65218
1093 tristate "TPS65218 GPIO"
1094 depends on MFD_TPS65218
1095 help
1096 Select this option to enable GPIO driver for the TPS65218
1097 chip family.
1098
1099config GPIO_TPS6586X
1100 bool "TPS6586X GPIO"
1101 depends on MFD_TPS6586X
1102 help
1103 Select this option to enable GPIO driver for the TPS6586X
1104 chip family.
1105
1106config GPIO_TPS65910
1107 bool "TPS65910 GPIO"
1108 depends on MFD_TPS65910
1109 help
1110 Select this option to enable GPIO driver for the TPS65910
1111 chip family.
1112
1113config GPIO_TPS65912
1114 tristate "TI TPS65912 GPIO"
1115 depends on MFD_TPS65912
1116 help
1117 This driver supports TPS65912 gpio chip
1118
1119config GPIO_TPS68470
1120 bool "TPS68470 GPIO"
1121 depends on MFD_TPS68470
1122 help
1123 Select this option to enable GPIO driver for the TPS68470
1124 chip family.
1125 There are 7 GPIOs and few sensor related GPIOs supported
1126 by the TPS68470. While the 7 GPIOs can be configured as
1127 input or output as appropriate, the sensor related GPIOs
1128 are "output only" GPIOs.
1129
1130 This driver config is bool, as the GPIO functionality
1131 of the TPS68470 must be available before dependent
1132 drivers are loaded.
1133
1134config GPIO_TWL4030
1135 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1136 depends on TWL4030_CORE
1137 help
1138 Say yes here to access the GPIO signals of various multi-function
1139 power management chips from Texas Instruments.
1140
1141config GPIO_TWL6040
1142 tristate "TWL6040 GPO"
1143 depends on TWL6040_CORE
1144 help
1145 Say yes here to access the GPO signals of twl6040
1146 audio chip from Texas Instruments.
1147
1148config GPIO_UCB1400
1149 tristate "Philips UCB1400 GPIO"
1150 depends on UCB1400_CORE
1151 help
1152 This enables support for the Philips UCB1400 GPIO pins.
1153 The UCB1400 is an AC97 audio codec.
1154
1155config GPIO_WHISKEY_COVE
1156 tristate "GPIO support for Whiskey Cove PMIC"
1157 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1158 select GPIOLIB_IRQCHIP
1159 help
1160 Support for GPIO pins on Whiskey Cove PMIC.
1161
1162 Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1163 inside.
1164
1165 This driver can also be built as a module. If so, the module will be
1166 called gpio-wcove.
1167
1168config GPIO_WM831X
1169 tristate "WM831x GPIOs"
1170 depends on MFD_WM831X
1171 help
1172 Say yes here to access the GPIO signals of WM831x power management
1173 chips from Wolfson Microelectronics.
1174
1175config GPIO_WM8350
1176 tristate "WM8350 GPIOs"
1177 depends on MFD_WM8350
1178 help
1179 Say yes here to access the GPIO signals of WM8350 power management
1180 chips from Wolfson Microelectronics.
1181
1182config GPIO_WM8994
1183 tristate "WM8994 GPIOs"
1184 depends on MFD_WM8994
1185 help
1186 Say yes here to access the GPIO signals of WM8994 audio hub
1187 CODECs from Wolfson Microelectronics.
1188
1189endmenu
1190
1191menu "PCI GPIO expanders"
1192 depends on PCI
1193
1194config GPIO_AMD8111
1195 tristate "AMD 8111 GPIO driver"
1196 depends on X86 || COMPILE_TEST
1197 help
1198 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1199
1200 Note, that usually system firmware/ACPI handles GPIO pins on their
1201 own and users might easily break their systems with uncarefull usage
1202 of this driver!
1203
1204 If unsure, say N
1205
1206config GPIO_BT8XX
1207 tristate "BT8XX GPIO abuser"
1208 depends on VIDEO_BT848=n
1209 help
1210 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1211 as a cheap PCI GPIO card.
1212
1213 This chip can be found on Miro, Hauppauge and STB TV-cards.
1214
1215 The card needs to be physically altered for using it as a
1216 GPIO card. For more information on how to build a GPIO card
1217 from a BT8xx TV card, see the documentation file at
1218 Documentation/bt8xxgpio.txt
1219
1220 If unsure, say N.
1221
1222config GPIO_INTEL_MID
1223 bool "Intel MID GPIO support"
1224 depends on X86_INTEL_MID
1225 select GPIOLIB_IRQCHIP
1226 help
1227 Say Y here to support Intel MID GPIO.
1228
1229config GPIO_MERRIFIELD
1230 tristate "Intel Merrifield GPIO support"
1231 depends on X86_INTEL_MID
1232 select GPIOLIB_IRQCHIP
1233 help
1234 Say Y here to support Intel Merrifield GPIO.
1235
1236config GPIO_ML_IOH
1237 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1238 depends on X86 || COMPILE_TEST
1239 select GENERIC_IRQ_CHIP
1240 help
1241 ML7213 is companion chip for Intel Atom E6xx series.
1242 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1243 Hub) which is for IVI(In-Vehicle Infotainment) use.
1244 This driver can access the IOH's GPIO device.
1245
1246config GPIO_PCH
1247 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1248 depends on X86_32 || MIPS || COMPILE_TEST
1249 select GENERIC_IRQ_CHIP
1250 help
1251 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1252 which is an IOH(Input/Output Hub) for x86 embedded processor.
1253 This driver can access PCH GPIO device.
1254
1255 This driver also can be used for LAPIS Semiconductor IOH(Input/
1256 Output Hub), ML7223 and ML7831.
1257 ML7223 IOH is for MP(Media Phone) use.
1258 ML7831 IOH is for general purpose use.
1259 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1260 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1261
1262config GPIO_PCI_IDIO_16
1263 tristate "ACCES PCI-IDIO-16 GPIO support"
1264 select GPIOLIB_IRQCHIP
1265 help
1266 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1267 generated when any of the inputs change state (low to high or high to
1268 low). Input filter control is not supported by this driver, and the
1269 input filters are deactivated by this driver.
1270
1271config GPIO_PCIE_IDIO_24
1272 tristate "ACCES PCIe-IDIO-24 GPIO support"
1273 select GPIOLIB_IRQCHIP
1274 help
1275 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1276 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1277 when any of the inputs change state (low to high or high to low).
1278 Input filter control is not supported by this driver, and the input
1279 filters are deactivated by this driver.
1280
1281config GPIO_RDC321X
1282 tristate "RDC R-321x GPIO support"
1283 select MFD_CORE
1284 select MFD_RDC321X
1285 help
1286 Support for the RDC R321x SoC GPIOs over southbridge
1287 PCI configuration space.
1288
1289config GPIO_SODAVILLE
1290 bool "Intel Sodaville GPIO support"
1291 depends on X86 && OF
1292 select GPIO_GENERIC
1293 select GENERIC_IRQ_CHIP
1294 help
1295 Say Y here to support Intel Sodaville GPIO.
1296
1297endmenu
1298
1299menu "SPI GPIO expanders"
1300 depends on SPI_MASTER
1301
1302config GPIO_74X164
1303 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1304 depends on OF_GPIO
1305 help
1306 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1307 shift registers. This driver can be used to provide access
1308 to more gpio outputs.
1309
1310config GPIO_MAX3191X
1311 tristate "Maxim MAX3191x industrial serializer"
1312 select CRC8
1313 help
1314 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1315 MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1316 chip to make 8 digital 24V inputs available via SPI. Supports
1317 CRC checksums to guard against electromagnetic interference,
1318 as well as undervoltage and overtemperature detection.
1319
1320config GPIO_MAX7301
1321 tristate "Maxim MAX7301 GPIO expander"
1322 select GPIO_MAX730X
1323 help
1324 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1325
1326config GPIO_MC33880
1327 tristate "Freescale MC33880 high-side/low-side switch"
1328 help
1329 SPI driver for Freescale MC33880 high-side/low-side switch.
1330 This provides GPIO interface supporting inputs and outputs.
1331
1332config GPIO_PISOSR
1333 tristate "Generic parallel-in/serial-out shift register"
1334 help
1335 GPIO driver for SPI compatible parallel-in/serial-out shift
1336 registers. These are input only devices.
1337
1338config GPIO_XRA1403
1339 tristate "EXAR XRA1403 16-bit GPIO expander"
1340 select REGMAP_SPI
1341 help
1342 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1343
1344endmenu
1345
1346menu "USB GPIO expanders"
1347 depends on USB
1348
1349config GPIO_VIPERBOARD
1350 tristate "Viperboard GPIO a & b support"
1351 depends on MFD_VIPERBOARD
1352 help
1353 Say yes here to access the GPIO signals of Nano River
1354 Technologies Viperboard. There are two GPIO chips on the
1355 board: gpioa and gpiob.
1356 See viperboard API specification and Nano
1357 River Tech's viperboard.h for detailed meaning
1358 of the module parameters.
1359
1360endmenu
1361
1362endif