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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
34
35menuconfig GPIOLIB
36 bool "GPIO Support"
37 depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB
38 select GENERIC_GPIO
39 help
40 This enables GPIO support through the generic GPIO library.
41 You only need to enable this, if you also want to enable
42 one or more of the GPIO drivers below.
43
44 If unsure, say N.
45
46if GPIOLIB
47
48config OF_GPIO
49 def_bool y
50 depends on OF && !SPARC
51
52config DEBUG_GPIO
53 bool "Debug GPIO calls"
54 depends on DEBUG_KERNEL
55 help
56 Say Y here to add some extra checks and diagnostics to GPIO calls.
57 These checks help ensure that GPIOs have been properly initialized
58 before they are used, and that sleeping calls are not made from
59 non-sleeping contexts. They can make bitbanged serial protocols
60 slower. The diagnostics help catch the type of setup errors
61 that are most common when setting up new platforms or boards.
62
63config GPIO_SYSFS
64 bool "/sys/class/gpio/... (sysfs interface)"
65 depends on SYSFS && EXPERIMENTAL
66 help
67 Say Y here to add a sysfs interface for GPIOs.
68
69 This is mostly useful to work around omissions in a system's
70 kernel support. Those are common in custom and semicustom
71 hardware assembled using standard kernels with a minimum of
72 custom patches. In those cases, userspace code may import
73 a given GPIO from the kernel, if no kernel driver requested it.
74
75 Kernel drivers may also request that a particular GPIO be
76 exported to userspace; this can be useful when debugging.
77
78config GPIO_GENERIC
79 tristate
80
81# put drivers in the right section, in alphabetical order
82
83config GPIO_DA9052
84 tristate "Dialog DA9052 GPIO"
85 depends on PMIC_DA9052 && BROKEN
86 help
87 Say yes here to enable the GPIO driver for the DA9052 chip.
88
89config GPIO_MAX730X
90 tristate
91
92comment "Memory mapped GPIO drivers:"
93
94config GPIO_GENERIC_PLATFORM
95 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
96 select GPIO_GENERIC
97 help
98 Say yes here to support basic platform_device memory-mapped GPIO controllers.
99
100config GPIO_IT8761E
101 tristate "IT8761E GPIO support"
102 depends on X86 # unconditional access to IO space.
103 help
104 Say yes here to support GPIO functionality of IT8761E super I/O chip.
105
106config GPIO_EM
107 tristate "Emma Mobile GPIO"
108 depends on ARM
109 help
110 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
111
112config GPIO_EP93XX
113 def_bool y
114 depends on ARCH_EP93XX
115 select GPIO_GENERIC
116
117config GPIO_MM_LANTIQ
118 bool "Lantiq Memory mapped GPIOs"
119 depends on LANTIQ && SOC_XWAY
120 help
121 This enables support for memory mapped GPIOs on the External Bus Unit
122 (EBU) found on Lantiq SoCs. The gpios are output only as they are
123 created by attaching a 16bit latch to the bus.
124
125config GPIO_MPC5200
126 def_bool y
127 depends on PPC_MPC52xx
128
129config GPIO_MPC8XXX
130 bool "MPC512x/MPC8xxx GPIO support"
131 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
132 FSL_SOC_BOOKE || PPC_86xx
133 help
134 Say Y here if you're going to use hardware that connects to the
135 MPC512x/831x/834x/837x/8572/8610 GPIOs.
136
137config GPIO_MSM_V1
138 tristate "Qualcomm MSM GPIO v1"
139 depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50)
140 help
141 Say yes here to support the GPIO interface on ARM v6 based
142 Qualcomm MSM chips. Most of the pins on the MSM can be
143 selected for GPIO, and are controlled by this driver.
144
145config GPIO_MSM_V2
146 tristate "Qualcomm MSM GPIO v2"
147 depends on GPIOLIB && ARCH_MSM
148 help
149 Say yes here to support the GPIO interface on ARM v7 based
150 Qualcomm MSM chips. Most of the pins on the MSM can be
151 selected for GPIO, and are controlled by this driver.
152
153config GPIO_MXC
154 def_bool y
155 depends on ARCH_MXC
156 select GPIO_GENERIC
157 select GENERIC_IRQ_CHIP
158
159config GPIO_MXS
160 def_bool y
161 depends on ARCH_MXS
162 select GPIO_GENERIC
163 select GENERIC_IRQ_CHIP
164
165config GPIO_PL061
166 bool "PrimeCell PL061 GPIO support"
167 depends on ARM_AMBA
168 select GENERIC_IRQ_CHIP
169 help
170 Say yes here to support the PrimeCell PL061 GPIO device
171
172config GPIO_PXA
173 bool "PXA GPIO support"
174 depends on ARCH_PXA || ARCH_MMP
175 help
176 Say yes here to support the PXA GPIO device
177
178config GPIO_STA2X11
179 bool "STA2x11/ConneXt GPIO support"
180 depends on MFD_STA2X11
181 select GENERIC_IRQ_CHIP
182 help
183 Say yes here to support the STA2x11/ConneXt GPIO device.
184 The GPIO module has 128 GPIO pins with alternate functions.
185
186config GPIO_XILINX
187 bool "Xilinx GPIO support"
188 depends on PPC_OF || MICROBLAZE
189 help
190 Say yes here to support the Xilinx FPGA GPIO device
191
192config GPIO_VR41XX
193 tristate "NEC VR4100 series General-purpose I/O Uint support"
194 depends on CPU_VR41XX
195 help
196 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
197
198config GPIO_SCH
199 tristate "Intel SCH/TunnelCreek/Centerton GPIO"
200 depends on PCI && X86
201 select MFD_CORE
202 select LPC_SCH
203 help
204 Say yes here to support GPIO interface on Intel Poulsbo SCH,
205 Intel Tunnel Creek processor or Intel Centerton processor.
206 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
207 powered by the core power rail and are turned off during sleep
208 modes (S3 and higher). The remaining four GPIOs are powered by
209 the Intel SCH suspend power supply. These GPIOs remain
210 active during S3. The suspend powered GPIOs can be used to wake the
211 system from the Suspend-to-RAM state.
212 The Intel Tunnel Creek processor has 5 GPIOs powered by the
213 core power rail and 9 from suspend power supply.
214 The Intel Centerton processor has a total of 30 GPIO pins.
215 Twenty-one are powered by the core power rail and 9 from the
216 suspend power supply.
217
218config GPIO_ICH
219 tristate "Intel ICH GPIO"
220 depends on PCI && X86
221 select MFD_CORE
222 select LPC_ICH
223 help
224 Say yes here to support the GPIO functionality of a number of Intel
225 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
226 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
227 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
228
229 If unsure, say N.
230
231config GPIO_VX855
232 tristate "VIA VX855/VX875 GPIO"
233 depends on PCI
234 select MFD_CORE
235 select MFD_VX855
236 help
237 Support access to the VX855/VX875 GPIO lines through the gpio library.
238
239 This driver provides common support for accessing the device,
240 additional drivers must be enabled in order to use the
241 functionality of the device.
242
243config GPIO_GE_FPGA
244 bool "GE FPGA based GPIO"
245 depends on GE_FPGA
246 help
247 Support for common GPIO functionality provided on some GE Single Board
248 Computers.
249
250 This driver provides basic support (configure as input or output, read
251 and write pin state) for GPIO implemented in a number of GE single
252 board computers.
253
254comment "I2C GPIO expanders:"
255
256config GPIO_MAX7300
257 tristate "Maxim MAX7300 GPIO expander"
258 depends on I2C
259 select GPIO_MAX730X
260 help
261 GPIO driver for Maxim MAX7301 I2C-based GPIO expander.
262
263config GPIO_MAX732X
264 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
265 depends on I2C
266 help
267 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
268 Port Expanders. Each IO port on these chips has a fixed role of
269 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
270 Input and Output (designed by 'P'). The combinations are listed
271 below:
272
273 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
274 max7322 (4I4O), max7323 (4P4O)
275
276 16 bits: max7324 (8I8O), max7325 (8P8O),
277 max7326 (4I12O), max7327 (4P12O)
278
279 Board setup code must specify the model to use, and the start
280 number for these GPIOs.
281
282config GPIO_MAX732X_IRQ
283 bool "Interrupt controller support for MAX732x"
284 depends on GPIO_MAX732X=y && GENERIC_HARDIRQS
285 help
286 Say yes here to enable the max732x to be used as an interrupt
287 controller. It requires the driver to be built in the kernel.
288
289config GPIO_MC9S08DZ60
290 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
291 depends on I2C && MACH_MX35_3DS
292 help
293 Select this to enable the MC9S08DZ60 GPIO driver
294
295config GPIO_PCA953X
296 tristate "PCA953x, PCA955x, PCA957x, TCA64xx, and MAX7310 I/O ports"
297 depends on I2C
298 help
299 Say yes here to provide access to several register-oriented
300 SMBus I/O expanders, made mostly by NXP or TI. Compatible
301 models include:
302
303 4 bits: pca9536, pca9537
304
305 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
306 pca9556, pca9557, pca9574, tca6408
307
308 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
309 tca6416
310
311config GPIO_PCA953X_IRQ
312 bool "Interrupt controller support for PCA953x"
313 depends on GPIO_PCA953X=y
314 help
315 Say yes here to enable the pca953x to be used as an interrupt
316 controller. It requires the driver to be built in the kernel.
317
318config GPIO_PCF857X
319 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
320 depends on I2C
321 help
322 Say yes here to provide access to most "quasi-bidirectional" I2C
323 GPIO expanders used for additional digital outputs or inputs.
324 Most of these parts are from NXP, though TI is a second source for
325 some of them. Compatible models include:
326
327 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
328 pca9670, pca9672, pca9674, pca9674a,
329 max7328, max7329
330
331 16 bits: pcf8575, pcf8575c, pca8575,
332 pca9671, pca9673, pca9675
333
334 Your board setup code will need to declare the expanders in
335 use, and assign numbers to the GPIOs they expose. Those GPIOs
336 can then be used from drivers and other kernel code, just like
337 other GPIOs, but only accessible from task contexts.
338
339 This driver provides an in-kernel interface to those GPIOs using
340 platform-neutral GPIO calls.
341
342config GPIO_RC5T583
343 bool "RICOH RC5T583 GPIO"
344 depends on MFD_RC5T583
345 help
346 Select this option to enable GPIO driver for the Ricoh RC5T583
347 chip family.
348 This driver provides the support for driving/reading the gpio pins
349 of RC5T583 device through standard gpio library.
350
351config GPIO_SX150X
352 bool "Semtech SX150x I2C GPIO expander"
353 depends on I2C=y
354 default n
355 help
356 Say yes here to provide support for Semtech SX150-series I2C
357 GPIO expanders. Compatible models include:
358
359 8 bits: sx1508q
360 16 bits: sx1509q
361
362config GPIO_STMPE
363 bool "STMPE GPIOs"
364 depends on MFD_STMPE
365 help
366 This enables support for the GPIOs found on the STMPE I/O
367 Expanders.
368
369config GPIO_STP_XWAY
370 bool "XWAY STP GPIOs"
371 depends on SOC_XWAY
372 help
373 This enables support for the Serial To Parallel (STP) unit found on
374 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
375 that can be up to 24 bit. This peripheral is aimed at driving leds.
376 Some of the gpios/leds can be auto updated by the soc with dsl and
377 phy status.
378
379config GPIO_TC3589X
380 bool "TC3589X GPIOs"
381 depends on MFD_TC3589X
382 help
383 This enables support for the GPIOs found on the TC3589X
384 I/O Expander.
385
386config GPIO_TPS65912
387 tristate "TI TPS65912 GPIO"
388 depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
389 help
390 This driver supports TPS65912 gpio chip
391
392config GPIO_TWL4030
393 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
394 depends on TWL4030_CORE
395 help
396 Say yes here to access the GPIO signals of various multi-function
397 power management chips from Texas Instruments.
398
399config GPIO_WM831X
400 tristate "WM831x GPIOs"
401 depends on MFD_WM831X
402 help
403 Say yes here to access the GPIO signals of WM831x power management
404 chips from Wolfson Microelectronics.
405
406config GPIO_WM8350
407 tristate "WM8350 GPIOs"
408 depends on MFD_WM8350
409 help
410 Say yes here to access the GPIO signals of WM8350 power management
411 chips from Wolfson Microelectronics.
412
413config GPIO_WM8994
414 tristate "WM8994 GPIOs"
415 depends on MFD_WM8994
416 help
417 Say yes here to access the GPIO signals of WM8994 audio hub
418 CODECs from Wolfson Microelectronics.
419
420config GPIO_ADP5520
421 tristate "GPIO Support for ADP5520 PMIC"
422 depends on PMIC_ADP5520
423 help
424 This option enables support for on-chip GPIO found
425 on Analog Devices ADP5520 PMICs.
426
427config GPIO_ADP5588
428 tristate "ADP5588 I2C GPIO expander"
429 depends on I2C
430 help
431 This option enables support for 18 GPIOs found
432 on Analog Devices ADP5588 GPIO Expanders.
433
434config GPIO_ADP5588_IRQ
435 bool "Interrupt controller support for ADP5588"
436 depends on GPIO_ADP5588=y
437 help
438 Say yes here to enable the adp5588 to be used as an interrupt
439 controller. It requires the driver to be built in the kernel.
440
441comment "PCI GPIO expanders:"
442
443config GPIO_CS5535
444 tristate "AMD CS5535/CS5536 GPIO support"
445 depends on PCI && X86 && MFD_CS5535
446 help
447 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
448 can be used for quite a number of things. The CS5535/6 is found on
449 AMD Geode and Lemote Yeeloong devices.
450
451 If unsure, say N.
452
453config GPIO_BT8XX
454 tristate "BT8XX GPIO abuser"
455 depends on PCI && VIDEO_BT848=n
456 help
457 The BT8xx frame grabber chip has 24 GPIO pins than can be abused
458 as a cheap PCI GPIO card.
459
460 This chip can be found on Miro, Hauppauge and STB TV-cards.
461
462 The card needs to be physically altered for using it as a
463 GPIO card. For more information on how to build a GPIO card
464 from a BT8xx TV card, see the documentation file at
465 Documentation/bt8xxgpio.txt
466
467 If unsure, say N.
468
469config GPIO_LANGWELL
470 bool "Intel Langwell/Penwell GPIO support"
471 depends on PCI && X86
472 select IRQ_DOMAIN
473 help
474 Say Y here to support Intel Langwell/Penwell GPIO.
475
476config GPIO_PCH
477 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
478 depends on PCI && X86
479 select GENERIC_IRQ_CHIP
480 help
481 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
482 which is an IOH(Input/Output Hub) for x86 embedded processor.
483 This driver can access PCH GPIO device.
484
485 This driver also can be used for LAPIS Semiconductor IOH(Input/
486 Output Hub), ML7223 and ML7831.
487 ML7223 IOH is for MP(Media Phone) use.
488 ML7831 IOH is for general purpose use.
489 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
490 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
491
492config GPIO_ML_IOH
493 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
494 depends on PCI
495 select GENERIC_IRQ_CHIP
496 help
497 ML7213 is companion chip for Intel Atom E6xx series.
498 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
499 Hub) which is for IVI(In-Vehicle Infotainment) use.
500 This driver can access the IOH's GPIO device.
501
502config GPIO_SODAVILLE
503 bool "Intel Sodaville GPIO support"
504 depends on X86 && PCI && OF
505 select GPIO_GENERIC
506 select GENERIC_IRQ_CHIP
507 help
508 Say Y here to support Intel Sodaville GPIO.
509
510config GPIO_TIMBERDALE
511 bool "Support for timberdale GPIO IP"
512 depends on MFD_TIMBERDALE && HAS_IOMEM
513 ---help---
514 Add support for the GPIO IP in the timberdale FPGA.
515
516config GPIO_RDC321X
517 tristate "RDC R-321x GPIO support"
518 depends on PCI
519 select MFD_CORE
520 select MFD_RDC321X
521 help
522 Support for the RDC R321x SoC GPIOs over southbridge
523 PCI configuration space.
524
525comment "SPI GPIO expanders:"
526
527config GPIO_MAX7301
528 tristate "Maxim MAX7301 GPIO expander"
529 depends on SPI_MASTER
530 select GPIO_MAX730X
531 help
532 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
533
534config GPIO_MCP23S08
535 tristate "Microchip MCP23xxx I/O expander"
536 depends on SPI_MASTER || I2C
537 help
538 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
539 I/O expanders.
540 This provides a GPIO interface supporting inputs and outputs.
541
542config GPIO_MC33880
543 tristate "Freescale MC33880 high-side/low-side switch"
544 depends on SPI_MASTER
545 help
546 SPI driver for Freescale MC33880 high-side/low-side switch.
547 This provides GPIO interface supporting inputs and outputs.
548
549config GPIO_74X164
550 tristate "74x164 serial-in/parallel-out 8-bits shift register"
551 depends on SPI_MASTER
552 help
553 Platform driver for 74x164 compatible serial-in/parallel-out
554 8-outputs shift registers. This driver can be used to provide access
555 to more gpio outputs.
556
557comment "AC97 GPIO expanders:"
558
559config GPIO_UCB1400
560 bool "Philips UCB1400 GPIO"
561 depends on UCB1400_CORE
562 help
563 This enables support for the Philips UCB1400 GPIO pins.
564 The UCB1400 is an AC97 audio codec.
565
566comment "MODULbus GPIO expanders:"
567
568config GPIO_JANZ_TTL
569 tristate "Janz VMOD-TTL Digital IO Module"
570 depends on MFD_JANZ_CMODIO
571 help
572 This enables support for the Janz VMOD-TTL Digital IO module.
573 This driver provides support for driving the pins in output
574 mode only. Input mode is not supported.
575
576config GPIO_AB8500
577 bool "ST-Ericsson AB8500 Mixed Signal Circuit gpio functions"
578 depends on AB8500_CORE && BROKEN
579 help
580 Select this to enable the AB8500 IC GPIO driver
581
582config GPIO_TPS65910
583 bool "TPS65910 GPIO"
584 depends on MFD_TPS65910
585 help
586 Select this option to enable GPIO driver for the TPS65910
587 chip family.
588
589config GPIO_MSIC
590 bool "Intel MSIC mixed signal gpio support"
591 depends on MFD_INTEL_MSIC
592 help
593 Enable support for GPIO on intel MSIC controllers found in
594 intel MID devices
595
596endif
1# SPDX-License-Identifier: GPL-2.0-only
2#
3# GPIO infrastructure and drivers
4#
5
6config ARCH_HAVE_CUSTOM_GPIO_H
7 bool
8 help
9 Selecting this config option from the architecture Kconfig allows
10 the architecture to provide a custom asm/gpio.h implementation
11 overriding the default implementations. New uses of this are
12 strongly discouraged.
13
14menuconfig GPIOLIB
15 bool "GPIO Support"
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 GPIOLIB_FASTPATH_LIMIT
26 int "Maximum number of GPIOs for fast path"
27 range 32 512
28 default 512
29 help
30 This adjusts the point at which certain APIs will switch from
31 using a stack allocated buffer to a dynamically allocated buffer.
32
33 You shouldn't need to change this unless you really need to
34 optimize either stack space or performance. Change this carefully
35 since setting an incorrect value could cause stack corruption.
36
37config OF_GPIO
38 def_bool y
39 depends on OF
40 depends on HAS_IOMEM
41
42config GPIO_ACPI
43 def_bool y
44 depends on ACPI
45
46config GPIOLIB_IRQCHIP
47 select IRQ_DOMAIN
48 bool
49
50config DEBUG_GPIO
51 bool "Debug GPIO calls"
52 depends on DEBUG_KERNEL
53 help
54 Say Y here to add some extra checks and diagnostics to GPIO calls.
55 These checks help ensure that GPIOs have been properly initialized
56 before they are used, and that sleeping calls are not made from
57 non-sleeping contexts. They can make bitbanged serial protocols
58 slower. The diagnostics help catch the type of setup errors
59 that are most common when setting up new platforms or boards.
60
61config GPIO_SYSFS
62 bool "/sys/class/gpio/... (sysfs interface)"
63 depends on SYSFS
64 help
65 Say Y here to add the legacy sysfs interface for GPIOs.
66
67 This ABI is deprecated. If you want to use GPIO from userspace,
68 use the character device /dev/gpiochipN with the appropriate
69 ioctl() operations instead. The character device is always
70 available.
71
72config GPIO_GENERIC
73 depends on HAS_IOMEM # Only for IOMEM drivers
74 tristate
75
76config GPIO_REGMAP
77 depends on REGMAP
78 tristate
79
80# put drivers in the right section, in alphabetical order
81
82# This symbol is selected by both I2C and SPI expanders
83config GPIO_MAX730X
84 tristate
85
86menu "Memory mapped GPIO drivers"
87 depends on HAS_IOMEM
88
89config GPIO_74XX_MMIO
90 tristate "GPIO driver for 74xx-ICs with MMIO access"
91 depends on OF_GPIO
92 select GPIO_GENERIC
93 help
94 Say yes here to support GPIO functionality for 74xx-compatible ICs
95 with MMIO access. Compatible models include:
96 1 bit: 741G125 (Input), 741G74 (Output)
97 2 bits: 742G125 (Input), 7474 (Output)
98 4 bits: 74125 (Input), 74175 (Output)
99 6 bits: 74365 (Input), 74174 (Output)
100 8 bits: 74244 (Input), 74273 (Output)
101 16 bits: 741624 (Input), 7416374 (Output)
102
103config GPIO_ALTERA
104 tristate "Altera GPIO"
105 depends on OF_GPIO
106 select GPIOLIB_IRQCHIP
107 help
108 Say Y or M here to build support for the Altera PIO device.
109
110 If driver is built as a module it will be called gpio-altera.
111
112config GPIO_AMDPT
113 tristate "AMD Promontory GPIO support"
114 depends on ACPI
115 select GPIO_GENERIC
116 help
117 driver for GPIO functionality on Promontory IOHub
118 Require ACPI ASL code to enumerate as a platform device.
119
120config GPIO_ASPEED
121 tristate "Aspeed GPIO support"
122 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
123 select GPIOLIB_IRQCHIP
124 help
125 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
126
127config GPIO_ASPEED_SGPIO
128 bool "Aspeed SGPIO support"
129 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
130 select GPIO_GENERIC
131 select GPIOLIB_IRQCHIP
132 help
133 Say Y here to support Aspeed AST2500 SGPIO functionality.
134
135config GPIO_ATH79
136 tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
137 default y if ATH79
138 depends on ATH79 || COMPILE_TEST
139 select GPIO_GENERIC
140 select GPIOLIB_IRQCHIP
141 help
142 Select this option to enable GPIO driver for
143 Atheros AR71XX/AR724X/AR913X SoC devices.
144
145config GPIO_RASPBERRYPI_EXP
146 tristate "Raspberry Pi 3 GPIO Expander"
147 default RASPBERRYPI_FIRMWARE
148 depends on OF_GPIO
149 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
150 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
151 depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
152 help
153 Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
154 the firmware mailbox to communicate with VideoCore on BCM283x chips.
155
156config GPIO_BCM_KONA
157 bool "Broadcom Kona GPIO"
158 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
159 help
160 Turn on GPIO support for Broadcom "Kona" chips.
161
162config GPIO_BCM_XGS_IPROC
163 tristate "BRCM XGS iProc GPIO support"
164 depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST)
165 select GPIO_GENERIC
166 select GPIOLIB_IRQCHIP
167 default ARCH_BCM_IPROC
168 help
169 Say yes here to enable GPIO support for Broadcom XGS iProc SoCs.
170
171config GPIO_BRCMSTB
172 tristate "BRCMSTB GPIO support"
173 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
174 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
175 select GPIO_GENERIC
176 select IRQ_DOMAIN
177 help
178 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
179
180config GPIO_CADENCE
181 tristate "Cadence GPIO support"
182 depends on OF_GPIO
183 select GPIO_GENERIC
184 select GPIOLIB_IRQCHIP
185 help
186 Say yes here to enable support for Cadence GPIO controller.
187
188config GPIO_CLPS711X
189 tristate "CLPS711X GPIO support"
190 depends on ARCH_CLPS711X || COMPILE_TEST
191 select GPIO_GENERIC
192 help
193 Say yes here to support GPIO on CLPS711X SoCs.
194
195config GPIO_DAVINCI
196 bool "TI Davinci/Keystone GPIO support"
197 default y if ARCH_DAVINCI
198 depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3)
199 help
200 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
201
202config GPIO_DWAPB
203 tristate "Synopsys DesignWare APB GPIO driver"
204 select GPIO_GENERIC
205 select GENERIC_IRQ_CHIP
206 help
207 Say Y or M here to build support for the Synopsys DesignWare APB
208 GPIO block.
209
210config GPIO_EIC_SPRD
211 tristate "Spreadtrum EIC support"
212 depends on ARCH_SPRD || COMPILE_TEST
213 depends on OF_GPIO
214 select GPIOLIB_IRQCHIP
215 help
216 Say yes here to support Spreadtrum EIC device.
217
218config GPIO_EM
219 tristate "Emma Mobile GPIO"
220 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
221 help
222 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
223
224config GPIO_EP93XX
225 def_bool y
226 depends on ARCH_EP93XX
227 select GPIO_GENERIC
228 select GPIOLIB_IRQCHIP
229
230config GPIO_EXAR
231 tristate "Support for GPIO pins on XR17V352/354/358"
232 depends on SERIAL_8250_EXAR
233 help
234 Selecting this option will enable handling of GPIO pins present
235 on Exar XR17V352/354/358 chips.
236
237config GPIO_GE_FPGA
238 bool "GE FPGA based GPIO"
239 depends on GE_FPGA
240 select GPIO_GENERIC
241 help
242 Support for common GPIO functionality provided on some GE Single Board
243 Computers.
244
245 This driver provides basic support (configure as input or output, read
246 and write pin state) for GPIO implemented in a number of GE single
247 board computers.
248
249config GPIO_FTGPIO010
250 bool "Faraday FTGPIO010 GPIO"
251 depends on OF_GPIO
252 select GPIO_GENERIC
253 select GPIOLIB_IRQCHIP
254 default (ARCH_GEMINI || ARCH_MOXART)
255 help
256 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
257 Cortina systems Gemini platforms, Moxa ART and others.
258
259config GPIO_GENERIC_PLATFORM
260 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
261 select GPIO_GENERIC
262 help
263 Say yes here to support basic platform_device memory-mapped GPIO controllers.
264
265config GPIO_GRGPIO
266 tristate "Aeroflex Gaisler GRGPIO support"
267 depends on OF_GPIO
268 select GPIO_GENERIC
269 select IRQ_DOMAIN
270 help
271 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
272 VHDL IP core library.
273
274config GPIO_HLWD
275 tristate "Nintendo Wii (Hollywood) GPIO"
276 depends on OF_GPIO
277 select GPIO_GENERIC
278 select GPIOLIB_IRQCHIP
279 help
280 Select this to support the GPIO controller of the Nintendo Wii.
281
282 If unsure, say N.
283
284config GPIO_ICH
285 tristate "Intel ICH GPIO"
286 depends on PCI && X86
287 select MFD_CORE
288 select LPC_ICH
289 help
290 Say yes here to support the GPIO functionality of a number of Intel
291 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
292 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
293 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
294
295 If unsure, say N.
296
297config GPIO_IOP
298 tristate "Intel IOP GPIO"
299 depends on ARCH_IOP32X || COMPILE_TEST
300 select GPIO_GENERIC
301 help
302 Say yes here to support the GPIO functionality of a number of Intel
303 IOP32X or IOP33X.
304
305 If unsure, say N.
306
307config GPIO_IXP4XX
308 bool "Intel IXP4xx GPIO"
309 depends on ARM # For <asm/mach-types.h>
310 depends on ARCH_IXP4XX
311 select GPIO_GENERIC
312 select GPIOLIB_IRQCHIP
313 select IRQ_DOMAIN_HIERARCHY
314 help
315 Say yes here to support the GPIO functionality of a number of Intel
316 IXP4xx series of chips.
317
318 If unsure, say N.
319config GPIO_LOGICVC
320 tristate "Xylon LogiCVC GPIO support"
321 depends on MFD_SYSCON && OF
322 help
323 Say yes here to support GPIO functionality of the Xylon LogiCVC
324 programmable logic block.
325
326config GPIO_LOONGSON
327 bool "Loongson-2/3 GPIO support"
328 depends on CPU_LOONGSON2EF || CPU_LOONGSON64
329 help
330 driver for GPIO functionality on Loongson-2F/3A/3B processors.
331
332config GPIO_LPC18XX
333 tristate "NXP LPC18XX/43XX GPIO support"
334 default y if ARCH_LPC18XX
335 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
336 select IRQ_DOMAIN_HIERARCHY
337 help
338 Select this option to enable GPIO driver for
339 NXP LPC18XX/43XX devices.
340
341config GPIO_LPC32XX
342 tristate "NXP LPC32XX GPIO support"
343 depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST)
344 help
345 Select this option to enable GPIO driver for
346 NXP LPC32XX devices.
347
348config GPIO_MB86S7X
349 tristate "GPIO support for Fujitsu MB86S7x Platforms"
350 help
351 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
352
353config GPIO_MENZ127
354 tristate "MEN 16Z127 GPIO support"
355 depends on MCB
356 select GPIO_GENERIC
357 help
358 Say yes here to support the MEN 16Z127 GPIO Controller
359
360config GPIO_MM_LANTIQ
361 bool "Lantiq Memory mapped GPIOs"
362 depends on LANTIQ && SOC_XWAY
363 help
364 This enables support for memory mapped GPIOs on the External Bus Unit
365 (EBU) found on Lantiq SoCs. The gpios are output only as they are
366 created by attaching a 16bit latch to the bus.
367
368config GPIO_MPC5200
369 def_bool y
370 depends on PPC_MPC52xx
371
372config GPIO_MPC8XXX
373 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
374 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
375 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
376 COMPILE_TEST
377 select GPIO_GENERIC
378 select IRQ_DOMAIN
379 help
380 Say Y here if you're going to use hardware that connects to the
381 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
382
383config GPIO_MT7621
384 bool "Mediatek MT7621 GPIO Support"
385 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
386 depends on OF_GPIO
387 select GPIO_GENERIC
388 select GPIOLIB_IRQCHIP
389 help
390 Say yes here to support the Mediatek MT7621 SoC GPIO device
391
392config GPIO_MVEBU
393 def_bool y
394 depends on PLAT_ORION || ARCH_MVEBU
395 depends on OF_GPIO
396 select GENERIC_IRQ_CHIP
397 select REGMAP_MMIO
398
399config GPIO_MXC
400 def_bool y
401 depends on ARCH_MXC || COMPILE_TEST
402 select GPIO_GENERIC
403 select GENERIC_IRQ_CHIP
404
405config GPIO_MXS
406 def_bool y
407 depends on ARCH_MXS || COMPILE_TEST
408 select GPIO_GENERIC
409 select GENERIC_IRQ_CHIP
410
411config GPIO_OCTEON
412 tristate "Cavium OCTEON GPIO"
413 depends on CAVIUM_OCTEON_SOC
414 default y
415 help
416 Say yes here to support the on-chip GPIO lines on the OCTEON
417 family of SOCs.
418
419config GPIO_OMAP
420 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
421 default y if ARCH_OMAP
422 depends on ARM
423 select GENERIC_IRQ_CHIP
424 select GPIOLIB_IRQCHIP
425 help
426 Say yes here to enable GPIO support for TI OMAP SoCs.
427
428config GPIO_PL061
429 tristate "PrimeCell PL061 GPIO support"
430 depends on ARM_AMBA
431 select IRQ_DOMAIN
432 select GPIOLIB_IRQCHIP
433 help
434 Say yes here to support the PrimeCell PL061 GPIO device
435
436config GPIO_PMIC_EIC_SPRD
437 tristate "Spreadtrum PMIC EIC support"
438 depends on MFD_SC27XX_PMIC || COMPILE_TEST
439 depends on OF_GPIO
440 select GPIOLIB_IRQCHIP
441 help
442 Say yes here to support Spreadtrum PMIC EIC device.
443
444config GPIO_PXA
445 bool "PXA GPIO support"
446 depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST
447 help
448 Say yes here to support the PXA GPIO device
449
450config GPIO_RCAR
451 tristate "Renesas R-Car GPIO"
452 depends on ARCH_RENESAS || COMPILE_TEST
453 select GPIOLIB_IRQCHIP
454 help
455 Say yes here to support GPIO on Renesas R-Car SoCs.
456
457config GPIO_RDA
458 bool "RDA Micro GPIO controller support"
459 depends on ARCH_RDA || COMPILE_TEST
460 depends on OF_GPIO
461 select GPIO_GENERIC
462 select GPIOLIB_IRQCHIP
463 help
464 Say Y here to support RDA Micro GPIO controller.
465
466config GPIO_REG
467 bool
468 help
469 A 32-bit single register GPIO fixed in/out implementation. This
470 can be used to represent any register as a set of GPIO signals.
471
472config GPIO_SAMA5D2_PIOBU
473 tristate "SAMA5D2 PIOBU GPIO support"
474 depends on MFD_SYSCON
475 depends on OF_GPIO
476 select GPIO_SYSCON
477 help
478 Say yes here to use the PIOBU pins as GPIOs.
479
480 PIOBU pins on the SAMA5D2 can be used as GPIOs.
481 The difference from regular GPIOs is that they
482 maintain their value during backup/self-refresh.
483
484config GPIO_SIFIVE
485 bool "SiFive GPIO support"
486 depends on OF_GPIO && IRQ_DOMAIN_HIERARCHY
487 select GPIO_GENERIC
488 select GPIOLIB_IRQCHIP
489 select REGMAP_MMIO
490 help
491 Say yes here to support the GPIO device on SiFive SoCs.
492
493config GPIO_SIOX
494 tristate "SIOX GPIO support"
495 depends on SIOX
496 select GPIOLIB_IRQCHIP
497 help
498 Say yes here to support SIOX I/O devices. These are units connected
499 via a SIOX bus and have a number of fixed-direction I/O lines.
500
501config GPIO_SNPS_CREG
502 bool "Synopsys GPIO via CREG (Control REGisters) driver"
503 depends on ARC || COMPILE_TEST
504 depends on OF_GPIO
505 help
506 This driver supports GPIOs via CREG on various Synopsys SoCs.
507 This is a single-register MMIO GPIO driver for complex cases
508 where only several fields in register belong to GPIO lines and
509 each GPIO line owns a field with different length and on/off value.
510
511config GPIO_SPEAR_SPICS
512 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
513 depends on PLAT_SPEAR
514 select GENERIC_IRQ_CHIP
515 help
516 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
517
518config GPIO_SPRD
519 tristate "Spreadtrum GPIO support"
520 depends on ARCH_SPRD || COMPILE_TEST
521 depends on OF_GPIO
522 select GPIOLIB_IRQCHIP
523 help
524 Say yes here to support Spreadtrum GPIO device.
525
526config GPIO_STA2X11
527 bool "STA2x11/ConneXt GPIO support"
528 depends on MFD_STA2X11
529 select GENERIC_IRQ_CHIP
530 help
531 Say yes here to support the STA2x11/ConneXt GPIO device.
532 The GPIO module has 128 GPIO pins with alternate functions.
533
534config GPIO_STP_XWAY
535 bool "XWAY STP GPIOs"
536 depends on SOC_XWAY || COMPILE_TEST
537 depends on OF_GPIO
538 help
539 This enables support for the Serial To Parallel (STP) unit found on
540 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
541 that can be up to 24 bit. This peripheral is aimed at driving leds.
542 Some of the gpios/leds can be auto updated by the soc with dsl and
543 phy status.
544
545config GPIO_SYSCON
546 tristate "GPIO based on SYSCON"
547 depends on MFD_SYSCON && OF
548 help
549 Say yes here to support GPIO functionality though SYSCON driver.
550
551config GPIO_TB10X
552 bool
553 select GPIO_GENERIC
554 select GENERIC_IRQ_CHIP
555 select OF_GPIO
556
557config GPIO_TEGRA
558 bool "NVIDIA Tegra GPIO support"
559 default ARCH_TEGRA
560 depends on ARCH_TEGRA || COMPILE_TEST
561 depends on OF_GPIO
562 help
563 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
564
565config GPIO_TEGRA186
566 tristate "NVIDIA Tegra186 GPIO support"
567 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC
568 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST
569 depends on OF_GPIO
570 select GPIOLIB_IRQCHIP
571 select IRQ_DOMAIN_HIERARCHY
572 help
573 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
574
575config GPIO_TS4800
576 tristate "TS-4800 DIO blocks and compatibles"
577 depends on OF_GPIO
578 depends on SOC_IMX51 || COMPILE_TEST
579 select GPIO_GENERIC
580 help
581 This driver support TS-4800 FPGA GPIO controllers.
582
583config GPIO_THUNDERX
584 tristate "Cavium ThunderX/OCTEON-TX GPIO"
585 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
586 depends on PCI_MSI
587 select GPIOLIB_IRQCHIP
588 select IRQ_DOMAIN_HIERARCHY
589 select IRQ_FASTEOI_HIERARCHY_HANDLERS
590 help
591 Say yes here to support the on-chip GPIO lines on the ThunderX
592 and OCTEON-TX families of SoCs.
593
594config GPIO_UNIPHIER
595 tristate "UniPhier GPIO support"
596 depends on ARCH_UNIPHIER || COMPILE_TEST
597 depends on OF_GPIO
598 select IRQ_DOMAIN_HIERARCHY
599 help
600 Say yes here to support UniPhier GPIOs.
601
602config GPIO_VF610
603 def_bool y
604 depends on ARCH_MXC && SOC_VF610
605 select GPIOLIB_IRQCHIP
606 help
607 Say yes here to support Vybrid vf610 GPIOs.
608
609config GPIO_VR41XX
610 tristate "NEC VR4100 series General-purpose I/O Uint support"
611 depends on CPU_VR41XX
612 help
613 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
614
615config GPIO_VX855
616 tristate "VIA VX855/VX875 GPIO"
617 depends on (X86 || COMPILE_TEST) && PCI
618 select MFD_CORE
619 select MFD_VX855
620 help
621 Support access to the VX855/VX875 GPIO lines through the gpio library.
622
623 This driver provides common support for accessing the device,
624 additional drivers must be enabled in order to use the
625 functionality of the device.
626
627config GPIO_WCD934X
628 tristate "Qualcomm Technologies Inc WCD9340/WCD9341 gpio controller driver"
629 depends on MFD_WCD934X && OF_GPIO
630 help
631 This driver is to supprot GPIO block found on the Qualcomm Technologies
632 Inc WCD9340/WCD9341 Audio Codec.
633
634config GPIO_XGENE
635 bool "APM X-Gene GPIO controller support"
636 depends on ARM64 && OF_GPIO
637 help
638 This driver is to support the GPIO block within the APM X-Gene SoC
639 platform's generic flash controller. The GPIO pins are muxed with
640 the generic flash controller's address and data pins. Say yes
641 here to enable the GFC GPIO functionality.
642
643config GPIO_XGENE_SB
644 tristate "APM X-Gene GPIO standby controller support"
645 depends on (ARCH_XGENE || COMPILE_TEST)
646 select GPIO_GENERIC
647 select GPIOLIB_IRQCHIP
648 select IRQ_DOMAIN_HIERARCHY
649 help
650 This driver supports the GPIO block within the APM X-Gene
651 Standby Domain. Say yes here to enable the GPIO functionality.
652
653config GPIO_XILINX
654 tristate "Xilinx GPIO support"
655 help
656 Say yes here to support the Xilinx FPGA GPIO device
657
658config GPIO_XLP
659 tristate "Netlogic XLP GPIO support"
660 depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
661 select GPIOLIB_IRQCHIP
662 help
663 This driver provides support for GPIO interface on Netlogic XLP MIPS64
664 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
665 XLP9XX and XLP5XX. The same GPIO controller block is also present in
666 Cavium's ThunderX2 CN99XX SoCs.
667
668 If unsure, say N.
669
670config GPIO_XTENSA
671 bool "Xtensa GPIO32 support"
672 depends on XTENSA
673 depends on HAVE_XTENSA_GPIO32
674 depends on !SMP
675 help
676 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
677 and EXPSTATE (output) ports
678
679config GPIO_ZEVIO
680 bool "LSI ZEVIO SoC memory mapped GPIOs"
681 depends on ARM && OF_GPIO
682 help
683 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
684
685config GPIO_ZYNQ
686 tristate "Xilinx Zynq GPIO support"
687 depends on ARCH_ZYNQ || ARCH_ZYNQMP
688 select GPIOLIB_IRQCHIP
689 help
690 Say yes here to support Xilinx Zynq GPIO controller.
691
692config GPIO_ZX
693 bool "ZTE ZX GPIO support"
694 depends on ARCH_ZX || COMPILE_TEST
695 select GPIOLIB_IRQCHIP
696 help
697 Say yes here to support the GPIO device on ZTE ZX SoCs.
698
699config GPIO_LOONGSON1
700 tristate "Loongson1 GPIO support"
701 depends on MACH_LOONGSON32
702 select GPIO_GENERIC
703 help
704 Say Y or M here to support GPIO on Loongson1 SoCs.
705
706config GPIO_AMD_FCH
707 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
708 help
709 This option enables driver for GPIO on AMDs Fusion Controller Hub,
710 as found on G-series SOCs (eg. GX-412TC)
711
712 Note: This driver doesn't registers itself automatically, as it
713 needs to be provided with platform specific configuration.
714 (See eg. CONFIG_PCENGINES_APU2.)
715endmenu
716
717menu "Port-mapped I/O GPIO drivers"
718 depends on X86 # Unconditional I/O space access
719
720config GPIO_104_DIO_48E
721 tristate "ACCES 104-DIO-48E GPIO support"
722 depends on PC104
723 select ISA_BUS_API
724 select GPIOLIB_IRQCHIP
725 help
726 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
727 104-DIO-24E). The base port addresses for the devices may be
728 configured via the base module parameter. The interrupt line numbers
729 for the devices may be configured via the irq module parameter.
730
731config GPIO_104_IDIO_16
732 tristate "ACCES 104-IDIO-16 GPIO support"
733 depends on PC104
734 select ISA_BUS_API
735 select GPIOLIB_IRQCHIP
736 help
737 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
738 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
739 base port addresses for the devices may be configured via the base
740 module parameter. The interrupt line numbers for the devices may be
741 configured via the irq module parameter.
742
743config GPIO_104_IDI_48
744 tristate "ACCES 104-IDI-48 GPIO support"
745 depends on PC104
746 select ISA_BUS_API
747 select GPIOLIB_IRQCHIP
748 help
749 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
750 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
751 the devices may be configured via the base module parameter. The
752 interrupt line numbers for the devices may be configured via the irq
753 module parameter.
754
755config GPIO_F7188X
756 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
757 help
758 This option enables support for GPIOs found on Fintek Super-I/O
759 chips F71869, F71869A, F71882FG, F71889F and F81866.
760
761 To compile this driver as a module, choose M here: the module will
762 be called f7188x-gpio.
763
764config GPIO_GPIO_MM
765 tristate "Diamond Systems GPIO-MM GPIO support"
766 depends on PC104
767 select ISA_BUS_API
768 help
769 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
770
771 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
772 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
773 support for these 48 channels of digital I/O.
774
775 The base port addresses for the devices may be configured via the base
776 array module parameter.
777
778config GPIO_IT87
779 tristate "IT87xx GPIO support"
780 help
781 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
782
783 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
784 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
785 well.
786
787 To compile this driver as a module, choose M here: the module will
788 be called gpio_it87
789
790config GPIO_SCH
791 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
792 depends on (X86 || COMPILE_TEST) && PCI
793 select MFD_CORE
794 select LPC_SCH
795 help
796 Say yes here to support GPIO interface on Intel Poulsbo SCH,
797 Intel Tunnel Creek processor, Intel Centerton processor or
798 Intel Quark X1000 SoC.
799
800 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
801 powered by the core power rail and are turned off during sleep
802 modes (S3 and higher). The remaining four GPIOs are powered by
803 the Intel SCH suspend power supply. These GPIOs remain
804 active during S3. The suspend powered GPIOs can be used to wake the
805 system from the Suspend-to-RAM state.
806
807 The Intel Tunnel Creek processor has 5 GPIOs powered by the
808 core power rail and 9 from suspend power supply.
809
810 The Intel Centerton processor has a total of 30 GPIO pins.
811 Twenty-one are powered by the core power rail and 9 from the
812 suspend power supply.
813
814 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
815 power well and 6 from the suspend power well.
816
817config GPIO_SCH311X
818 tristate "SMSC SCH311x SuperI/O GPIO"
819 help
820 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
821 SCH3116 "Super I/O" chipsets.
822
823 To compile this driver as a module, choose M here: the module will
824 be called gpio-sch311x.
825
826config GPIO_TS5500
827 tristate "TS-5500 DIO blocks and compatibles"
828 depends on TS5500 || COMPILE_TEST
829 help
830 This driver supports Digital I/O exposed by pin blocks found on some
831 Technologic Systems platforms. It includes, but is not limited to, 3
832 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
833 LCD port.
834
835config GPIO_WINBOND
836 tristate "Winbond Super I/O GPIO support"
837 select ISA_BUS_API
838 help
839 This option enables support for GPIOs found on Winbond Super I/O
840 chips.
841 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
842 supported.
843
844 You will need to provide a module parameter "gpios", or a
845 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
846 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
847
848 To compile this driver as a module, choose M here: the module will
849 be called gpio-winbond.
850
851config GPIO_WS16C48
852 tristate "WinSystems WS16C48 GPIO support"
853 select ISA_BUS_API
854 select GPIOLIB_IRQCHIP
855 help
856 Enables GPIO support for the WinSystems WS16C48. The base port
857 addresses for the devices may be configured via the base module
858 parameter. The interrupt line numbers for the devices may be
859 configured via the irq module parameter.
860
861endmenu
862
863menu "I2C GPIO expanders"
864 depends on I2C
865
866config GPIO_ADP5588
867 tristate "ADP5588 I2C GPIO expander"
868 help
869 This option enables support for 18 GPIOs found
870 on Analog Devices ADP5588 GPIO Expanders.
871
872config GPIO_ADP5588_IRQ
873 bool "Interrupt controller support for ADP5588"
874 depends on GPIO_ADP5588=y
875 select GPIOLIB_IRQCHIP
876 help
877 Say yes here to enable the adp5588 to be used as an interrupt
878 controller. It requires the driver to be built in the kernel.
879
880config GPIO_ADNP
881 tristate "Avionic Design N-bit GPIO expander"
882 depends on OF_GPIO
883 select GPIOLIB_IRQCHIP
884 help
885 This option enables support for N GPIOs found on Avionic Design
886 I2C GPIO expanders. The register space will be extended by powers
887 of two, so the controller will need to accommodate for that. For
888 example: if a controller provides 48 pins, 6 registers will be
889 enough to represent all pins, but the driver will assume a
890 register layout for 64 pins (8 registers).
891
892config GPIO_GW_PLD
893 tristate "Gateworks PLD GPIO Expander"
894 depends on OF_GPIO
895 help
896 Say yes here to provide access to the Gateworks I2C PLD GPIO
897 Expander. This is used at least on the Cambria GW2358-4.
898
899config GPIO_MAX7300
900 tristate "Maxim MAX7300 GPIO expander"
901 select GPIO_MAX730X
902 help
903 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
904
905config GPIO_MAX732X
906 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
907 help
908 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
909 Port Expanders. Each IO port on these chips has a fixed role of
910 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
911 Input and Output (designed by 'P'). The combinations are listed
912 below:
913
914 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
915 max7322 (4I4O), max7323 (4P4O)
916
917 16 bits: max7324 (8I8O), max7325 (8P8O),
918 max7326 (4I12O), max7327 (4P12O)
919
920 Board setup code must specify the model to use, and the start
921 number for these GPIOs.
922
923config GPIO_MAX732X_IRQ
924 bool "Interrupt controller support for MAX732x"
925 depends on GPIO_MAX732X=y
926 select GPIOLIB_IRQCHIP
927 help
928 Say yes here to enable the max732x to be used as an interrupt
929 controller. It requires the driver to be built in the kernel.
930
931config GPIO_MC9S08DZ60
932 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
933 depends on I2C=y && MACH_MX35_3DS
934 help
935 Select this to enable the MC9S08DZ60 GPIO driver
936
937config GPIO_PCA953X
938 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
939 select REGMAP_I2C
940 help
941 Say yes here to provide access to several register-oriented
942 SMBus I/O expanders, made mostly by NXP or TI. Compatible
943 models include:
944
945 4 bits: pca9536, pca9537
946
947 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
948 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
949
950 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
951 tca6416
952
953 24 bits: tca6424
954
955 40 bits: pca9505, pca9698
956
957config GPIO_PCA953X_IRQ
958 bool "Interrupt controller support for PCA953x"
959 depends on GPIO_PCA953X
960 select GPIOLIB_IRQCHIP
961 help
962 Say yes here to enable the pca953x to be used as an interrupt
963 controller. It requires the driver to be built in the kernel.
964
965config GPIO_PCA9570
966 tristate "PCA9570 4-Bit I2C GPO expander"
967 help
968 Say yes here to enable the GPO driver for the NXP PCA9570 chip.
969
970 To compile this driver as a module, choose M here: the module will
971 be called gpio-pca9570.
972
973config GPIO_PCF857X
974 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
975 select GPIOLIB_IRQCHIP
976 select IRQ_DOMAIN
977 help
978 Say yes here to provide access to most "quasi-bidirectional" I2C
979 GPIO expanders used for additional digital outputs or inputs.
980 Most of these parts are from NXP, though TI is a second source for
981 some of them. Compatible models include:
982
983 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
984 pca9670, pca9672, pca9674, pca9674a,
985 max7328, max7329
986
987 16 bits: pcf8575, pcf8575c, pca8575,
988 pca9671, pca9673, pca9675
989
990 Your board setup code will need to declare the expanders in
991 use, and assign numbers to the GPIOs they expose. Those GPIOs
992 can then be used from drivers and other kernel code, just like
993 other GPIOs, but only accessible from task contexts.
994
995 This driver provides an in-kernel interface to those GPIOs using
996 platform-neutral GPIO calls.
997
998config GPIO_TPIC2810
999 tristate "TPIC2810 8-Bit I2C GPO expander"
1000 help
1001 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
1002
1003 To compile this driver as a module, choose M here: the module will
1004 be called gpio-tpic2810.
1005
1006config GPIO_TS4900
1007 tristate "Technologic Systems FPGA I2C GPIO"
1008 depends on SOC_IMX6 || COMPILE_TEST
1009 select REGMAP_I2C
1010 help
1011 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
1012 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
1013
1014endmenu
1015
1016menu "MFD GPIO expanders"
1017
1018config GPIO_ADP5520
1019 tristate "GPIO Support for ADP5520 PMIC"
1020 depends on PMIC_ADP5520
1021 help
1022 This option enables support for on-chip GPIO found
1023 on Analog Devices ADP5520 PMICs.
1024
1025config GPIO_ALTERA_A10SR
1026 tristate "Altera Arria10 System Resource GPIO"
1027 depends on MFD_ALTERA_A10SR
1028 help
1029 Driver for Arria10 Development Kit GPIO expansion which
1030 includes reads of pushbuttons and DIP switches as well
1031 as writes to LEDs.
1032
1033config GPIO_ARIZONA
1034 tristate "Wolfson Microelectronics Arizona class devices"
1035 depends on MFD_ARIZONA
1036 help
1037 Support for GPIOs on Wolfson Arizona class devices.
1038
1039config GPIO_BD70528
1040 tristate "ROHM BD70528 GPIO support"
1041 depends on MFD_ROHM_BD70528
1042 help
1043 Support for GPIOs on ROHM BD70528 PMIC. There are four GPIOs
1044 available on the ROHM PMIC in total. The GPIOs can also
1045 generate interrupts.
1046
1047 This driver can also be built as a module. If so, the module
1048 will be called gpio-bd70528.
1049
1050config GPIO_BD71828
1051 tristate "ROHM BD71828 GPIO support"
1052 depends on MFD_ROHM_BD71828
1053 help
1054 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs
1055 available on the ROHM PMIC in total. The GPIOs are limited to
1056 outputs only and pins must be configured to GPIO outputs by
1057 OTP. Enable this only if you want to use these pins as outputs.
1058
1059 This driver can also be built as a module. If so, the module
1060 will be called gpio-bd71828.
1061
1062config GPIO_BD9571MWV
1063 tristate "ROHM BD9571 GPIO support"
1064 depends on MFD_BD9571MWV
1065 help
1066 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
1067 available on the ROHM PMIC in total, both of which can also
1068 generate interrupts.
1069
1070 This driver can also be built as a module. If so, the module
1071 will be called gpio-bd9571mwv.
1072
1073config GPIO_CRYSTAL_COVE
1074 tristate "GPIO support for Crystal Cove PMIC"
1075 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1076 select GPIOLIB_IRQCHIP
1077 help
1078 Support for GPIO pins on Crystal Cove PMIC.
1079
1080 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
1081 inside.
1082
1083 This driver can also be built as a module. If so, the module will be
1084 called gpio-crystalcove.
1085
1086config GPIO_CS5535
1087 tristate "AMD CS5535/CS5536 GPIO support"
1088 depends on X86 || MIPS || COMPILE_TEST
1089 depends on MFD_CS5535
1090 help
1091 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1092 can be used for quite a number of things. The CS5535/6 is found on
1093 AMD Geode and Lemote Yeeloong devices.
1094
1095 If unsure, say N.
1096
1097config GPIO_DA9052
1098 tristate "Dialog DA9052 GPIO"
1099 depends on PMIC_DA9052
1100 help
1101 Say yes here to enable the GPIO driver for the DA9052 chip.
1102
1103config GPIO_DA9055
1104 tristate "Dialog Semiconductor DA9055 GPIO"
1105 depends on MFD_DA9055
1106 help
1107 Say yes here to enable the GPIO driver for the DA9055 chip.
1108
1109 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1110 be controller by this driver.
1111
1112 If driver is built as a module it will be called gpio-da9055.
1113
1114config GPIO_DLN2
1115 tristate "Diolan DLN2 GPIO support"
1116 depends on MFD_DLN2
1117 select GPIOLIB_IRQCHIP
1118
1119 help
1120 Select this option to enable GPIO driver for the Diolan DLN2
1121 board.
1122
1123 This driver can also be built as a module. If so, the module
1124 will be called gpio-dln2.
1125
1126config HTC_EGPIO
1127 bool "HTC EGPIO support"
1128 depends on ARM
1129 help
1130 This driver supports the CPLD egpio chip present on
1131 several HTC phones. It provides basic support for input
1132 pins, output pins, and irqs.
1133
1134config GPIO_JANZ_TTL
1135 tristate "Janz VMOD-TTL Digital IO Module"
1136 depends on MFD_JANZ_CMODIO
1137 help
1138 This enables support for the Janz VMOD-TTL Digital IO module.
1139 This driver provides support for driving the pins in output
1140 mode only. Input mode is not supported.
1141
1142config GPIO_KEMPLD
1143 tristate "Kontron ETX / COMexpress GPIO"
1144 depends on MFD_KEMPLD
1145 help
1146 This enables support for the PLD GPIO interface on some Kontron ETX
1147 and COMexpress (ETXexpress) modules.
1148
1149 This driver can also be built as a module. If so, the module will be
1150 called gpio-kempld.
1151
1152config GPIO_LP3943
1153 tristate "TI/National Semiconductor LP3943 GPIO expander"
1154 depends on MFD_LP3943
1155 help
1156 GPIO driver for LP3943 MFD.
1157 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1158 Open drain outputs are required for this usage.
1159
1160config GPIO_LP873X
1161 tristate "TI LP873X GPO"
1162 depends on MFD_TI_LP873X
1163 help
1164 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1165 on LP873X PMICs.
1166
1167 This driver can also be built as a module. If so, the module will be
1168 called gpio-lp873x.
1169
1170config GPIO_LP87565
1171 tristate "TI LP87565 GPIO"
1172 depends on MFD_TI_LP87565
1173 help
1174 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1175 on LP87565 PMICs.
1176
1177 This driver can also be built as a module. If so, the module will be
1178 called gpio-lp87565.
1179
1180config GPIO_MADERA
1181 tristate "Cirrus Logic Madera class codecs"
1182 depends on PINCTRL_MADERA
1183 help
1184 Support for GPIOs on Cirrus Logic Madera class codecs.
1185
1186config GPIO_MAX77620
1187 tristate "GPIO support for PMIC MAX77620 and MAX20024"
1188 depends on MFD_MAX77620
1189 select GPIOLIB_IRQCHIP
1190 help
1191 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1192 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1193 driver also provides interrupt support for each of the gpios.
1194 Say yes here to enable the max77620 to be used as gpio controller.
1195
1196config GPIO_MAX77650
1197 tristate "Maxim MAX77650/77651 GPIO support"
1198 depends on MFD_MAX77650
1199 help
1200 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1201 These chips have a single pin that can be configured as GPIO.
1202
1203config GPIO_MSIC
1204 bool "Intel MSIC mixed signal gpio support"
1205 depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
1206 help
1207 Enable support for GPIO on intel MSIC controllers found in
1208 intel MID devices
1209
1210config GPIO_PALMAS
1211 bool "TI PALMAS series PMICs GPIO"
1212 depends on MFD_PALMAS
1213 help
1214 Select this option to enable GPIO driver for the TI PALMAS
1215 series chip family.
1216
1217config GPIO_RC5T583
1218 bool "RICOH RC5T583 GPIO"
1219 depends on MFD_RC5T583
1220 help
1221 Select this option to enable GPIO driver for the Ricoh RC5T583
1222 chip family.
1223 This driver provides the support for driving/reading the gpio pins
1224 of RC5T583 device through standard gpio library.
1225
1226config GPIO_STMPE
1227 bool "STMPE GPIOs"
1228 depends on MFD_STMPE
1229 depends on OF_GPIO
1230 select GPIOLIB_IRQCHIP
1231 help
1232 This enables support for the GPIOs found on the STMPE I/O
1233 Expanders.
1234
1235config GPIO_TC3589X
1236 bool "TC3589X GPIOs"
1237 depends on MFD_TC3589X
1238 depends on OF_GPIO
1239 select GPIOLIB_IRQCHIP
1240 help
1241 This enables support for the GPIOs found on the TC3589X
1242 I/O Expander.
1243
1244config GPIO_TIMBERDALE
1245 bool "Support for timberdale GPIO IP"
1246 depends on MFD_TIMBERDALE
1247 help
1248 Add support for the GPIO IP in the timberdale FPGA.
1249
1250config GPIO_TPS65086
1251 tristate "TI TPS65086 GPO"
1252 depends on MFD_TPS65086
1253 help
1254 This driver supports the GPO on TI TPS65086x PMICs.
1255
1256config GPIO_TPS65218
1257 tristate "TPS65218 GPIO"
1258 depends on MFD_TPS65218
1259 help
1260 Select this option to enable GPIO driver for the TPS65218
1261 chip family.
1262
1263config GPIO_TPS6586X
1264 bool "TPS6586X GPIO"
1265 depends on MFD_TPS6586X
1266 help
1267 Select this option to enable GPIO driver for the TPS6586X
1268 chip family.
1269
1270config GPIO_TPS65910
1271 bool "TPS65910 GPIO"
1272 depends on MFD_TPS65910
1273 help
1274 Select this option to enable GPIO driver for the TPS65910
1275 chip family.
1276
1277config GPIO_TPS65912
1278 tristate "TI TPS65912 GPIO"
1279 depends on MFD_TPS65912
1280 help
1281 This driver supports TPS65912 gpio chip
1282
1283config GPIO_TPS68470
1284 bool "TPS68470 GPIO"
1285 depends on MFD_TPS68470
1286 help
1287 Select this option to enable GPIO driver for the TPS68470
1288 chip family.
1289 There are 7 GPIOs and few sensor related GPIOs supported
1290 by the TPS68470. While the 7 GPIOs can be configured as
1291 input or output as appropriate, the sensor related GPIOs
1292 are "output only" GPIOs.
1293
1294 This driver config is bool, as the GPIO functionality
1295 of the TPS68470 must be available before dependent
1296 drivers are loaded.
1297
1298config GPIO_TQMX86
1299 tristate "TQ-Systems QTMX86 GPIO"
1300 depends on MFD_TQMX86 || COMPILE_TEST
1301 select GPIOLIB_IRQCHIP
1302 help
1303 This driver supports GPIO on the TQMX86 IO controller.
1304
1305config GPIO_TWL4030
1306 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1307 depends on TWL4030_CORE
1308 help
1309 Say yes here to access the GPIO signals of various multi-function
1310 power management chips from Texas Instruments.
1311
1312config GPIO_TWL6040
1313 tristate "TWL6040 GPO"
1314 depends on TWL6040_CORE
1315 help
1316 Say yes here to access the GPO signals of twl6040
1317 audio chip from Texas Instruments.
1318
1319config GPIO_UCB1400
1320 tristate "Philips UCB1400 GPIO"
1321 depends on UCB1400_CORE
1322 help
1323 This enables support for the Philips UCB1400 GPIO pins.
1324 The UCB1400 is an AC97 audio codec.
1325
1326config GPIO_WHISKEY_COVE
1327 tristate "GPIO support for Whiskey Cove PMIC"
1328 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1329 select GPIOLIB_IRQCHIP
1330 help
1331 Support for GPIO pins on Whiskey Cove PMIC.
1332
1333 Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1334 inside.
1335
1336 This driver can also be built as a module. If so, the module will be
1337 called gpio-wcove.
1338
1339config GPIO_WM831X
1340 tristate "WM831x GPIOs"
1341 depends on MFD_WM831X
1342 help
1343 Say yes here to access the GPIO signals of WM831x power management
1344 chips from Wolfson Microelectronics.
1345
1346config GPIO_WM8350
1347 tristate "WM8350 GPIOs"
1348 depends on MFD_WM8350
1349 help
1350 Say yes here to access the GPIO signals of WM8350 power management
1351 chips from Wolfson Microelectronics.
1352
1353config GPIO_WM8994
1354 tristate "WM8994 GPIOs"
1355 depends on MFD_WM8994
1356 help
1357 Say yes here to access the GPIO signals of WM8994 audio hub
1358 CODECs from Wolfson Microelectronics.
1359
1360endmenu
1361
1362menu "PCI GPIO expanders"
1363 depends on PCI
1364
1365config GPIO_AMD8111
1366 tristate "AMD 8111 GPIO driver"
1367 depends on X86 || COMPILE_TEST
1368 help
1369 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1370
1371 Note, that usually system firmware/ACPI handles GPIO pins on their
1372 own and users might easily break their systems with uncarefull usage
1373 of this driver!
1374
1375 If unsure, say N
1376
1377config GPIO_BT8XX
1378 tristate "BT8XX GPIO abuser"
1379 depends on VIDEO_BT848=n
1380 help
1381 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1382 as a cheap PCI GPIO card.
1383
1384 This chip can be found on Miro, Hauppauge and STB TV-cards.
1385
1386 The card needs to be physically altered for using it as a
1387 GPIO card. For more information on how to build a GPIO card
1388 from a BT8xx TV card, see the documentation file at
1389 Documentation/driver-api/gpio/bt8xxgpio.rst
1390
1391 If unsure, say N.
1392
1393config GPIO_INTEL_MID
1394 bool "Intel MID GPIO support"
1395 depends on X86_INTEL_MID
1396 select GPIOLIB_IRQCHIP
1397 help
1398 Say Y here to support Intel MID GPIO.
1399
1400config GPIO_MERRIFIELD
1401 tristate "Intel Merrifield GPIO support"
1402 depends on X86_INTEL_MID
1403 select GPIOLIB_IRQCHIP
1404 help
1405 Say Y here to support Intel Merrifield GPIO.
1406
1407config GPIO_MLXBF
1408 tristate "Mellanox BlueField SoC GPIO"
1409 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1410 select GPIO_GENERIC
1411 help
1412 Say Y here if you want GPIO support on Mellanox BlueField SoC.
1413
1414config GPIO_MLXBF2
1415 tristate "Mellanox BlueField 2 SoC GPIO"
1416 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1417 select GPIO_GENERIC
1418 help
1419 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC.
1420
1421config GPIO_ML_IOH
1422 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1423 depends on X86 || COMPILE_TEST
1424 select GENERIC_IRQ_CHIP
1425 help
1426 ML7213 is companion chip for Intel Atom E6xx series.
1427 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1428 Hub) which is for IVI(In-Vehicle Infotainment) use.
1429 This driver can access the IOH's GPIO device.
1430
1431config GPIO_PCH
1432 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1433 depends on X86_32 || MIPS || COMPILE_TEST
1434 select GENERIC_IRQ_CHIP
1435 help
1436 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1437 which is an IOH(Input/Output Hub) for x86 embedded processor.
1438 This driver can access PCH GPIO device.
1439
1440 This driver also can be used for LAPIS Semiconductor IOH(Input/
1441 Output Hub), ML7223 and ML7831.
1442 ML7223 IOH is for MP(Media Phone) use.
1443 ML7831 IOH is for general purpose use.
1444 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1445 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1446
1447config GPIO_PCI_IDIO_16
1448 tristate "ACCES PCI-IDIO-16 GPIO support"
1449 select GPIOLIB_IRQCHIP
1450 help
1451 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1452 generated when any of the inputs change state (low to high or high to
1453 low). Input filter control is not supported by this driver, and the
1454 input filters are deactivated by this driver.
1455
1456config GPIO_PCIE_IDIO_24
1457 tristate "ACCES PCIe-IDIO-24 GPIO support"
1458 select GPIOLIB_IRQCHIP
1459 help
1460 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1461 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1462 when any of the inputs change state (low to high or high to low).
1463 Input filter control is not supported by this driver, and the input
1464 filters are deactivated by this driver.
1465
1466config GPIO_RDC321X
1467 tristate "RDC R-321x GPIO support"
1468 select MFD_CORE
1469 select MFD_RDC321X
1470 help
1471 Support for the RDC R321x SoC GPIOs over southbridge
1472 PCI configuration space.
1473
1474config GPIO_SODAVILLE
1475 bool "Intel Sodaville GPIO support"
1476 depends on X86 && OF
1477 select GPIO_GENERIC
1478 select GENERIC_IRQ_CHIP
1479 help
1480 Say Y here to support Intel Sodaville GPIO.
1481
1482endmenu
1483
1484menu "SPI GPIO expanders"
1485 depends on SPI_MASTER
1486
1487config GPIO_74X164
1488 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1489 depends on OF_GPIO
1490 help
1491 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1492 shift registers. This driver can be used to provide access
1493 to more gpio outputs.
1494
1495config GPIO_MAX3191X
1496 tristate "Maxim MAX3191x industrial serializer"
1497 select CRC8
1498 help
1499 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1500 MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1501 chip to make 8 digital 24V inputs available via SPI. Supports
1502 CRC checksums to guard against electromagnetic interference,
1503 as well as undervoltage and overtemperature detection.
1504
1505config GPIO_MAX7301
1506 tristate "Maxim MAX7301 GPIO expander"
1507 select GPIO_MAX730X
1508 help
1509 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1510
1511config GPIO_MC33880
1512 tristate "Freescale MC33880 high-side/low-side switch"
1513 help
1514 SPI driver for Freescale MC33880 high-side/low-side switch.
1515 This provides GPIO interface supporting inputs and outputs.
1516
1517config GPIO_PISOSR
1518 tristate "Generic parallel-in/serial-out shift register"
1519 help
1520 GPIO driver for SPI compatible parallel-in/serial-out shift
1521 registers. These are input only devices.
1522
1523config GPIO_XRA1403
1524 tristate "EXAR XRA1403 16-bit GPIO expander"
1525 select REGMAP_SPI
1526 help
1527 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1528
1529config GPIO_MOXTET
1530 tristate "Turris Mox Moxtet bus GPIO expander"
1531 depends on MOXTET
1532 help
1533 Say yes here if you are building for the Turris Mox router.
1534 This is the driver needed for configuring the GPIOs via the Moxtet
1535 bus. For example the Mox module with SFP cage needs this driver
1536 so that phylink can use corresponding GPIOs.
1537
1538endmenu
1539
1540menu "USB GPIO expanders"
1541 depends on USB
1542
1543config GPIO_VIPERBOARD
1544 tristate "Viperboard GPIO a & b support"
1545 depends on MFD_VIPERBOARD
1546 help
1547 Say yes here to access the GPIO signals of Nano River
1548 Technologies Viperboard. There are two GPIO chips on the
1549 board: gpioa and gpiob.
1550 See viperboard API specification and Nano
1551 River Tech's viperboard.h for detailed meaning
1552 of the module parameters.
1553
1554endmenu
1555
1556config GPIO_AGGREGATOR
1557 tristate "GPIO Aggregator"
1558 help
1559 Say yes here to enable the GPIO Aggregator, which provides a way to
1560 aggregate existing GPIO lines into a new virtual GPIO chip.
1561 This can serve the following purposes:
1562 - Assign permissions for a collection of GPIO lines to a user,
1563 - Export a collection of GPIO lines to a virtual machine,
1564 - Provide a generic driver for a GPIO-operated device in an
1565 industrial control context, to be operated from userspace using
1566 the GPIO chardev interface.
1567
1568config GPIO_MOCKUP
1569 tristate "GPIO Testing Driver"
1570 select IRQ_SIM
1571 help
1572 This enables GPIO Testing driver, which provides a way to test GPIO
1573 subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
1574 must be selected for this test.
1575 User could use it through the script in
1576 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1577 it.
1578
1579endif