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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#
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_AXP209
126 tristate "X-Powers AXP209 PMIC GPIO Support"
127 depends on MFD_AXP20X
128 help
129 Say yes to enable GPIO support for the AXP209 PMIC
130
131config GPIO_BCM_KONA
132 bool "Broadcom Kona GPIO"
133 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
134 help
135 Turn on GPIO support for Broadcom "Kona" chips.
136
137config GPIO_BRCMSTB
138 tristate "BRCMSTB GPIO support"
139 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
140 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
141 select GPIO_GENERIC
142 select GPIOLIB_IRQCHIP
143 help
144 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
145
146config GPIO_CLPS711X
147 tristate "CLPS711X GPIO support"
148 depends on ARCH_CLPS711X || COMPILE_TEST
149 select GPIO_GENERIC
150 help
151 Say yes here to support GPIO on CLPS711X SoCs.
152
153config GPIO_DAVINCI
154 bool "TI Davinci/Keystone GPIO support"
155 default y if ARCH_DAVINCI
156 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
157 help
158 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
159
160config GPIO_DWAPB
161 tristate "Synopsys DesignWare APB GPIO driver"
162 select GPIO_GENERIC
163 select GENERIC_IRQ_CHIP
164 help
165 Say Y or M here to build support for the Synopsys DesignWare APB
166 GPIO block.
167
168config GPIO_EM
169 tristate "Emma Mobile GPIO"
170 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
171 help
172 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
173
174config GPIO_EP93XX
175 def_bool y
176 depends on ARCH_EP93XX
177 select GPIO_GENERIC
178
179config GPIO_ETRAXFS
180 bool "Axis ETRAX FS General I/O"
181 depends on CRIS || COMPILE_TEST
182 depends on OF_GPIO
183 select GPIO_GENERIC
184 select GPIOLIB_IRQCHIP
185 help
186 Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.
187
188config GPIO_GE_FPGA
189 bool "GE FPGA based GPIO"
190 depends on GE_FPGA
191 select GPIO_GENERIC
192 help
193 Support for common GPIO functionality provided on some GE Single Board
194 Computers.
195
196 This driver provides basic support (configure as input or output, read
197 and write pin state) for GPIO implemented in a number of GE single
198 board computers.
199
200config GPIO_GENERIC_PLATFORM
201 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
202 select GPIO_GENERIC
203 help
204 Say yes here to support basic platform_device memory-mapped GPIO controllers.
205
206config GPIO_GRGPIO
207 tristate "Aeroflex Gaisler GRGPIO support"
208 depends on OF_GPIO
209 select GPIO_GENERIC
210 select IRQ_DOMAIN
211 help
212 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
213 VHDL IP core library.
214
215config GPIO_ICH
216 tristate "Intel ICH GPIO"
217 depends on PCI && X86
218 select MFD_CORE
219 select LPC_ICH
220 help
221 Say yes here to support the GPIO functionality of a number of Intel
222 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
223 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
224 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
225
226 If unsure, say N.
227
228config GPIO_IOP
229 tristate "Intel IOP GPIO"
230 depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST
231 select GPIO_GENERIC
232 help
233 Say yes here to support the GPIO functionality of a number of Intel
234 IOP32X or IOP33X.
235
236 If unsure, say N.
237
238config GPIO_LOONGSON
239 bool "Loongson-2/3 GPIO support"
240 depends on CPU_LOONGSON2 || CPU_LOONGSON3
241 help
242 driver for GPIO functionality on Loongson-2F/3A/3B processors.
243
244config GPIO_LPC18XX
245 tristate "NXP LPC18XX/43XX GPIO support"
246 default y if ARCH_LPC18XX
247 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
248 help
249 Select this option to enable GPIO driver for
250 NXP LPC18XX/43XX devices.
251
252config GPIO_LYNXPOINT
253 tristate "Intel Lynxpoint GPIO support"
254 depends on ACPI && X86
255 select GPIOLIB_IRQCHIP
256 help
257 driver for GPIO functionality on Intel Lynxpoint PCH chipset
258 Requires ACPI device enumeration code to set up a platform device.
259
260config GPIO_MB86S7X
261 bool "GPIO support for Fujitsu MB86S7x Platforms"
262 depends on ARCH_MB86S7X || COMPILE_TEST
263 help
264 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
265
266config GPIO_MENZ127
267 tristate "MEN 16Z127 GPIO support"
268 depends on MCB
269 select GPIO_GENERIC
270 help
271 Say yes here to support the MEN 16Z127 GPIO Controller
272
273config GPIO_MM_LANTIQ
274 bool "Lantiq Memory mapped GPIOs"
275 depends on LANTIQ && SOC_XWAY
276 help
277 This enables support for memory mapped GPIOs on the External Bus Unit
278 (EBU) found on Lantiq SoCs. The gpios are output only as they are
279 created by attaching a 16bit latch to the bus.
280
281config GPIO_MOCKUP
282 tristate "GPIO Testing Driver"
283 depends on GPIOLIB && SYSFS
284 select GPIO_SYSFS
285 help
286 This enables GPIO Testing driver, which provides a way to test GPIO
287 subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
288 must be selected for this test.
289 User could use it through the script in
290 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
291 it.
292
293config GPIO_MOXART
294 bool "MOXART GPIO support"
295 depends on ARCH_MOXART || COMPILE_TEST
296 select GPIO_GENERIC
297 help
298 Select this option to enable GPIO driver for
299 MOXA ART SoC devices.
300
301config GPIO_MPC5200
302 def_bool y
303 depends on PPC_MPC52xx
304
305config GPIO_MPC8XXX
306 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
307 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
308 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
309 COMPILE_TEST
310 select GPIO_GENERIC
311 select IRQ_DOMAIN
312 help
313 Say Y here if you're going to use hardware that connects to the
314 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
315
316config GPIO_MVEBU
317 def_bool y
318 depends on PLAT_ORION
319 depends on OF_GPIO
320 select GENERIC_IRQ_CHIP
321
322config GPIO_MXC
323 def_bool y
324 depends on ARCH_MXC
325 select GPIO_GENERIC
326 select GENERIC_IRQ_CHIP
327
328config GPIO_MXS
329 def_bool y
330 depends on ARCH_MXS
331 select GPIO_GENERIC
332 select GENERIC_IRQ_CHIP
333
334config GPIO_OCTEON
335 tristate "Cavium OCTEON GPIO"
336 depends on GPIOLIB && CAVIUM_OCTEON_SOC
337 default y
338 help
339 Say yes here to support the on-chip GPIO lines on the OCTEON
340 family of SOCs.
341
342config GPIO_OMAP
343 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
344 default y if ARCH_OMAP
345 depends on ARM
346 select GENERIC_IRQ_CHIP
347 select GPIOLIB_IRQCHIP
348 help
349 Say yes here to enable GPIO support for TI OMAP SoCs.
350
351config GPIO_PL061
352 bool "PrimeCell PL061 GPIO support"
353 depends on ARM_AMBA
354 select IRQ_DOMAIN
355 select GPIOLIB_IRQCHIP
356 help
357 Say yes here to support the PrimeCell PL061 GPIO device
358
359config GPIO_PXA
360 bool "PXA GPIO support"
361 depends on ARCH_PXA || ARCH_MMP
362 help
363 Say yes here to support the PXA GPIO device
364
365config GPIO_RCAR
366 tristate "Renesas R-Car GPIO"
367 depends on ARCH_RENESAS || COMPILE_TEST
368 select GPIOLIB_IRQCHIP
369 help
370 Say yes here to support GPIO on Renesas R-Car SoCs.
371
372config GPIO_SPEAR_SPICS
373 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
374 depends on PLAT_SPEAR
375 select GENERIC_IRQ_CHIP
376 help
377 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
378
379config GPIO_STA2X11
380 bool "STA2x11/ConneXt GPIO support"
381 depends on MFD_STA2X11
382 select GENERIC_IRQ_CHIP
383 help
384 Say yes here to support the STA2x11/ConneXt GPIO device.
385 The GPIO module has 128 GPIO pins with alternate functions.
386
387config GPIO_STP_XWAY
388 bool "XWAY STP GPIOs"
389 depends on SOC_XWAY
390 help
391 This enables support for the Serial To Parallel (STP) unit found on
392 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
393 that can be up to 24 bit. This peripheral is aimed at driving leds.
394 Some of the gpios/leds can be auto updated by the soc with dsl and
395 phy status.
396
397config GPIO_SYSCON
398 tristate "GPIO based on SYSCON"
399 depends on MFD_SYSCON && OF
400 help
401 Say yes here to support GPIO functionality though SYSCON driver.
402
403config GPIO_TB10X
404 bool
405 select GENERIC_IRQ_CHIP
406 select OF_GPIO
407
408config GPIO_TEGRA
409 bool "NVIDIA Tegra GPIO support"
410 default ARCH_TEGRA
411 depends on ARCH_TEGRA || COMPILE_TEST
412 depends on OF_GPIO
413 help
414 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
415
416config GPIO_TS4800
417 tristate "TS-4800 DIO blocks and compatibles"
418 depends on OF_GPIO
419 depends on SOC_IMX51 || COMPILE_TEST
420 select GPIO_GENERIC
421 help
422 This driver support TS-4800 FPGA GPIO controllers.
423
424config GPIO_TZ1090
425 bool "Toumaz Xenif TZ1090 GPIO support"
426 depends on SOC_TZ1090
427 select GENERIC_IRQ_CHIP
428 default y
429 help
430 Say yes here to support Toumaz Xenif TZ1090 GPIOs.
431
432config GPIO_TZ1090_PDC
433 bool "Toumaz Xenif TZ1090 PDC GPIO support"
434 depends on SOC_TZ1090
435 default y
436 help
437 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
438
439config GPIO_VF610
440 def_bool y
441 depends on ARCH_MXC && SOC_VF610
442 select GPIOLIB_IRQCHIP
443 help
444 Say yes here to support Vybrid vf610 GPIOs.
445
446config GPIO_VR41XX
447 tristate "NEC VR4100 series General-purpose I/O Uint support"
448 depends on CPU_VR41XX
449 help
450 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
451
452config GPIO_VX855
453 tristate "VIA VX855/VX875 GPIO"
454 depends on (X86 || COMPILE_TEST) && PCI
455 select MFD_CORE
456 select MFD_VX855
457 help
458 Support access to the VX855/VX875 GPIO lines through the gpio library.
459
460 This driver provides common support for accessing the device,
461 additional drivers must be enabled in order to use the
462 functionality of the device.
463
464config GPIO_XGENE
465 bool "APM X-Gene GPIO controller support"
466 depends on ARM64 && OF_GPIO
467 help
468 This driver is to support the GPIO block within the APM X-Gene SoC
469 platform's generic flash controller. The GPIO pins are muxed with
470 the generic flash controller's address and data pins. Say yes
471 here to enable the GFC GPIO functionality.
472
473config GPIO_XGENE_SB
474 tristate "APM X-Gene GPIO standby controller support"
475 depends on ARCH_XGENE && OF_GPIO
476 select GPIO_GENERIC
477 select GPIOLIB_IRQCHIP
478 help
479 This driver supports the GPIO block within the APM X-Gene
480 Standby Domain. Say yes here to enable the GPIO functionality.
481
482config GPIO_XILINX
483 tristate "Xilinx GPIO support"
484 depends on OF_GPIO
485 help
486 Say yes here to support the Xilinx FPGA GPIO device
487
488config GPIO_XLP
489 tristate "Netlogic XLP GPIO support"
490 depends on OF_GPIO && (CPU_XLP || ARCH_VULCAN || COMPILE_TEST)
491 select GPIOLIB_IRQCHIP
492 help
493 This driver provides support for GPIO interface on Netlogic XLP MIPS64
494 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
495 XLP9XX and XLP5XX.
496
497 If unsure, say N.
498
499config GPIO_XTENSA
500 bool "Xtensa GPIO32 support"
501 depends on XTENSA
502 depends on HAVE_XTENSA_GPIO32
503 depends on !SMP
504 help
505 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
506 and EXPSTATE (output) ports
507
508config GPIO_ZEVIO
509 bool "LSI ZEVIO SoC memory mapped GPIOs"
510 depends on ARM && OF_GPIO
511 help
512 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
513
514config GPIO_ZYNQ
515 tristate "Xilinx Zynq GPIO support"
516 depends on ARCH_ZYNQ || ARCH_ZYNQMP
517 select GPIOLIB_IRQCHIP
518 help
519 Say yes here to support Xilinx Zynq GPIO controller.
520
521config GPIO_ZX
522 bool "ZTE ZX GPIO support"
523 depends on ARCH_ZX || COMPILE_TEST
524 select GPIOLIB_IRQCHIP
525 help
526 Say yes here to support the GPIO device on ZTE ZX SoCs.
527
528config GPIO_LOONGSON1
529 tristate "Loongson1 GPIO support"
530 depends on MACH_LOONGSON32
531 select GPIO_GENERIC
532 help
533 Say Y or M here to support GPIO on Loongson1 SoCs.
534
535endmenu
536
537menu "Port-mapped I/O GPIO drivers"
538 depends on X86 # Unconditional I/O space access
539
540config GPIO_104_DIO_48E
541 tristate "ACCES 104-DIO-48E GPIO support"
542 depends on ISA_BUS_API
543 select GPIOLIB_IRQCHIP
544 help
545 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
546 104-DIO-24E). The base port addresses for the devices may be
547 configured via the base module parameter. The interrupt line numbers
548 for the devices may be configured via the irq module parameter.
549
550config GPIO_104_IDIO_16
551 tristate "ACCES 104-IDIO-16 GPIO support"
552 depends on ISA_BUS_API
553 select GPIOLIB_IRQCHIP
554 help
555 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
556 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
557 base port addresses for the devices may be configured via the base
558 module parameter. The interrupt line numbers for the devices may be
559 configured via the irq module parameter.
560
561config GPIO_104_IDI_48
562 tristate "ACCES 104-IDI-48 GPIO support"
563 depends on ISA_BUS_API
564 select GPIOLIB_IRQCHIP
565 help
566 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
567 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
568 the devices may be configured via the base module parameter. The
569 interrupt line numbers for the devices may be configured via the irq
570 module parameter.
571
572config GPIO_F7188X
573 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
574 help
575 This option enables support for GPIOs found on Fintek Super-I/O
576 chips F71869, F71869A, F71882FG, F71889F and F81866.
577
578 To compile this driver as a module, choose M here: the module will
579 be called f7188x-gpio.
580
581config GPIO_GPIO_MM
582 tristate "Diamond Systems GPIO-MM GPIO support"
583 depends on ISA_BUS_API
584 help
585 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
586
587 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
588 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
589 support for these 48 channels of digital I/O.
590
591 The base port addresses for the devices may be configured via the base
592 array module parameter.
593
594config GPIO_IT87
595 tristate "IT87xx GPIO support"
596 help
597 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
598
599 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
600 supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
601
602 To compile this driver as a module, choose M here: the module will
603 be called gpio_it87
604
605config GPIO_SCH
606 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
607 depends on (X86 || COMPILE_TEST) && PCI
608 select MFD_CORE
609 select LPC_SCH
610 help
611 Say yes here to support GPIO interface on Intel Poulsbo SCH,
612 Intel Tunnel Creek processor, Intel Centerton processor or
613 Intel Quark X1000 SoC.
614
615 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
616 powered by the core power rail and are turned off during sleep
617 modes (S3 and higher). The remaining four GPIOs are powered by
618 the Intel SCH suspend power supply. These GPIOs remain
619 active during S3. The suspend powered GPIOs can be used to wake the
620 system from the Suspend-to-RAM state.
621
622 The Intel Tunnel Creek processor has 5 GPIOs powered by the
623 core power rail and 9 from suspend power supply.
624
625 The Intel Centerton processor has a total of 30 GPIO pins.
626 Twenty-one are powered by the core power rail and 9 from the
627 suspend power supply.
628
629 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
630 power well and 6 from the suspend power well.
631
632config GPIO_SCH311X
633 tristate "SMSC SCH311x SuperI/O GPIO"
634 help
635 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
636 SCH3116 "Super I/O" chipsets.
637
638 To compile this driver as a module, choose M here: the module will
639 be called gpio-sch311x.
640
641config GPIO_TS5500
642 tristate "TS-5500 DIO blocks and compatibles"
643 depends on TS5500 || COMPILE_TEST
644 help
645 This driver supports Digital I/O exposed by pin blocks found on some
646 Technologic Systems platforms. It includes, but is not limited to, 3
647 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
648 LCD port.
649
650config GPIO_WS16C48
651 tristate "WinSystems WS16C48 GPIO support"
652 depends on ISA_BUS_API
653 select GPIOLIB_IRQCHIP
654 help
655 Enables GPIO support for the WinSystems WS16C48. The base port
656 addresses for the devices may be configured via the base module
657 parameter. The interrupt line numbers for the devices may be
658 configured via the irq module parameter.
659
660endmenu
661
662menu "I2C GPIO expanders"
663 depends on I2C
664
665config GPIO_ADP5588
666 tristate "ADP5588 I2C GPIO expander"
667 help
668 This option enables support for 18 GPIOs found
669 on Analog Devices ADP5588 GPIO Expanders.
670
671config GPIO_ADP5588_IRQ
672 bool "Interrupt controller support for ADP5588"
673 depends on GPIO_ADP5588=y
674 help
675 Say yes here to enable the adp5588 to be used as an interrupt
676 controller. It requires the driver to be built in the kernel.
677
678config GPIO_ADNP
679 tristate "Avionic Design N-bit GPIO expander"
680 depends on OF_GPIO
681 select GPIOLIB_IRQCHIP
682 help
683 This option enables support for N GPIOs found on Avionic Design
684 I2C GPIO expanders. The register space will be extended by powers
685 of two, so the controller will need to accommodate for that. For
686 example: if a controller provides 48 pins, 6 registers will be
687 enough to represent all pins, but the driver will assume a
688 register layout for 64 pins (8 registers).
689
690config GPIO_MAX7300
691 tristate "Maxim MAX7300 GPIO expander"
692 select GPIO_MAX730X
693 help
694 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
695
696config GPIO_MAX732X
697 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
698 help
699 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
700 Port Expanders. Each IO port on these chips has a fixed role of
701 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
702 Input and Output (designed by 'P'). The combinations are listed
703 below:
704
705 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
706 max7322 (4I4O), max7323 (4P4O)
707
708 16 bits: max7324 (8I8O), max7325 (8P8O),
709 max7326 (4I12O), max7327 (4P12O)
710
711 Board setup code must specify the model to use, and the start
712 number for these GPIOs.
713
714config GPIO_MAX732X_IRQ
715 bool "Interrupt controller support for MAX732x"
716 depends on GPIO_MAX732X=y
717 select GPIOLIB_IRQCHIP
718 help
719 Say yes here to enable the max732x to be used as an interrupt
720 controller. It requires the driver to be built in the kernel.
721
722config GPIO_MC9S08DZ60
723 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
724 depends on I2C=y && MACH_MX35_3DS
725 help
726 Select this to enable the MC9S08DZ60 GPIO driver
727
728config GPIO_PCA953X
729 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
730 help
731 Say yes here to provide access to several register-oriented
732 SMBus I/O expanders, made mostly by NXP or TI. Compatible
733 models include:
734
735 4 bits: pca9536, pca9537
736
737 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
738 pca9556, pca9557, pca9574, tca6408, xra1202
739
740 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
741 tca6416
742
743 24 bits: tca6424
744
745 40 bits: pca9505, pca9698
746
747config GPIO_PCA953X_IRQ
748 bool "Interrupt controller support for PCA953x"
749 depends on GPIO_PCA953X=y
750 select GPIOLIB_IRQCHIP
751 help
752 Say yes here to enable the pca953x to be used as an interrupt
753 controller. It requires the driver to be built in the kernel.
754
755config GPIO_PCF857X
756 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
757 select GPIOLIB_IRQCHIP
758 select IRQ_DOMAIN
759 help
760 Say yes here to provide access to most "quasi-bidirectional" I2C
761 GPIO expanders used for additional digital outputs or inputs.
762 Most of these parts are from NXP, though TI is a second source for
763 some of them. Compatible models include:
764
765 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
766 pca9670, pca9672, pca9674, pca9674a,
767 max7328, max7329
768
769 16 bits: pcf8575, pcf8575c, pca8575,
770 pca9671, pca9673, pca9675
771
772 Your board setup code will need to declare the expanders in
773 use, and assign numbers to the GPIOs they expose. Those GPIOs
774 can then be used from drivers and other kernel code, just like
775 other GPIOs, but only accessible from task contexts.
776
777 This driver provides an in-kernel interface to those GPIOs using
778 platform-neutral GPIO calls.
779
780config GPIO_SX150X
781 bool "Semtech SX150x I2C GPIO expander (deprecated)"
782 depends on PINCTRL && I2C=y
783 select PINCTRL_SX150X
784 default n
785 help
786 Say yes here to provide support for Semtech SX150x-series I2C
787 GPIO expanders. The GPIO driver was replaced by a Pinctrl version.
788
789config GPIO_TPIC2810
790 tristate "TPIC2810 8-Bit I2C GPO expander"
791 help
792 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
793
794 To compile this driver as a module, choose M here: the module will
795 be called gpio-tpic2810.
796
797config GPIO_TS4900
798 tristate "Technologic Systems FPGA I2C GPIO"
799 depends on SOC_IMX6 || COMPILE_TEST
800 select REGMAP_I2C
801 help
802 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
803 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
804
805endmenu
806
807menu "MFD GPIO expanders"
808
809config GPIO_ADP5520
810 tristate "GPIO Support for ADP5520 PMIC"
811 depends on PMIC_ADP5520
812 help
813 This option enables support for on-chip GPIO found
814 on Analog Devices ADP5520 PMICs.
815
816config GPIO_ALTERA_A10SR
817 tristate "Altera Arria10 System Resource GPIO"
818 depends on MFD_ALTERA_A10SR
819 help
820 Driver for Arria10 Development Kit GPIO expansion which
821 includes reads of pushbuttons and DIP switches as well
822 as writes to LEDs.
823
824config GPIO_ARIZONA
825 tristate "Wolfson Microelectronics Arizona class devices"
826 depends on MFD_ARIZONA
827 help
828 Support for GPIOs on Wolfson Arizona class devices.
829
830config GPIO_CRYSTAL_COVE
831 tristate "GPIO support for Crystal Cove PMIC"
832 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
833 select GPIOLIB_IRQCHIP
834 help
835 Support for GPIO pins on Crystal Cove PMIC.
836
837 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
838 inside.
839
840 This driver can also be built as a module. If so, the module will be
841 called gpio-crystalcove.
842
843config GPIO_CS5535
844 tristate "AMD CS5535/CS5536 GPIO support"
845 depends on X86 || MIPS || COMPILE_TEST
846 depends on MFD_CS5535
847 help
848 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
849 can be used for quite a number of things. The CS5535/6 is found on
850 AMD Geode and Lemote Yeeloong devices.
851
852 If unsure, say N.
853
854config GPIO_DA9052
855 tristate "Dialog DA9052 GPIO"
856 depends on PMIC_DA9052
857 help
858 Say yes here to enable the GPIO driver for the DA9052 chip.
859
860config GPIO_DA9055
861 tristate "Dialog Semiconductor DA9055 GPIO"
862 depends on MFD_DA9055
863 help
864 Say yes here to enable the GPIO driver for the DA9055 chip.
865
866 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
867 be controller by this driver.
868
869 If driver is built as a module it will be called gpio-da9055.
870
871config GPIO_DLN2
872 tristate "Diolan DLN2 GPIO support"
873 depends on MFD_DLN2
874 select GPIOLIB_IRQCHIP
875
876 help
877 Select this option to enable GPIO driver for the Diolan DLN2
878 board.
879
880 This driver can also be built as a module. If so, the module
881 will be called gpio-dln2.
882
883config HTC_EGPIO
884 bool "HTC EGPIO support"
885 depends on GPIOLIB && ARM
886 help
887 This driver supports the CPLD egpio chip present on
888 several HTC phones. It provides basic support for input
889 pins, output pins, and irqs.
890
891config GPIO_JANZ_TTL
892 tristate "Janz VMOD-TTL Digital IO Module"
893 depends on MFD_JANZ_CMODIO
894 help
895 This enables support for the Janz VMOD-TTL Digital IO module.
896 This driver provides support for driving the pins in output
897 mode only. Input mode is not supported.
898
899config GPIO_KEMPLD
900 tristate "Kontron ETX / COMexpress GPIO"
901 depends on MFD_KEMPLD
902 help
903 This enables support for the PLD GPIO interface on some Kontron ETX
904 and COMexpress (ETXexpress) modules.
905
906 This driver can also be built as a module. If so, the module will be
907 called gpio-kempld.
908
909config GPIO_LP3943
910 tristate "TI/National Semiconductor LP3943 GPIO expander"
911 depends on MFD_LP3943
912 help
913 GPIO driver for LP3943 MFD.
914 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
915 Open drain outputs are required for this usage.
916
917config GPIO_LP873X
918 tristate "TI LP873X GPO"
919 depends on MFD_TI_LP873X
920 help
921 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
922 on LP873X PMICs.
923
924 This driver can also be built as a module. If so, the module will be
925 called gpio-lp873x.
926
927config GPIO_MAX77620
928 tristate "GPIO support for PMIC MAX77620 and MAX20024"
929 depends on MFD_MAX77620
930 help
931 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
932 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
933 driver also provides interrupt support for each of the gpios.
934 Say yes here to enable the max77620 to be used as gpio controller.
935
936config GPIO_MSIC
937 bool "Intel MSIC mixed signal gpio support"
938 depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
939 help
940 Enable support for GPIO on intel MSIC controllers found in
941 intel MID devices
942
943config GPIO_PALMAS
944 bool "TI PALMAS series PMICs GPIO"
945 depends on MFD_PALMAS
946 help
947 Select this option to enable GPIO driver for the TI PALMAS
948 series chip family.
949
950config GPIO_RC5T583
951 bool "RICOH RC5T583 GPIO"
952 depends on MFD_RC5T583
953 help
954 Select this option to enable GPIO driver for the Ricoh RC5T583
955 chip family.
956 This driver provides the support for driving/reading the gpio pins
957 of RC5T583 device through standard gpio library.
958
959config GPIO_STMPE
960 bool "STMPE GPIOs"
961 depends on MFD_STMPE
962 depends on OF_GPIO
963 select GPIOLIB_IRQCHIP
964 help
965 This enables support for the GPIOs found on the STMPE I/O
966 Expanders.
967
968config GPIO_TC3589X
969 bool "TC3589X GPIOs"
970 depends on MFD_TC3589X
971 depends on OF_GPIO
972 select GPIOLIB_IRQCHIP
973 help
974 This enables support for the GPIOs found on the TC3589X
975 I/O Expander.
976
977config GPIO_TIMBERDALE
978 bool "Support for timberdale GPIO IP"
979 depends on MFD_TIMBERDALE
980 ---help---
981 Add support for the GPIO IP in the timberdale FPGA.
982
983config GPIO_TPS65086
984 tristate "TI TPS65086 GPO"
985 depends on MFD_TPS65086
986 help
987 This driver supports the GPO on TI TPS65086x PMICs.
988
989config GPIO_TPS65218
990 tristate "TPS65218 GPIO"
991 depends on MFD_TPS65218
992 help
993 Select this option to enable GPIO driver for the TPS65218
994 chip family.
995
996config GPIO_TPS6586X
997 bool "TPS6586X GPIO"
998 depends on MFD_TPS6586X
999 help
1000 Select this option to enable GPIO driver for the TPS6586X
1001 chip family.
1002
1003config GPIO_TPS65910
1004 bool "TPS65910 GPIO"
1005 depends on MFD_TPS65910
1006 help
1007 Select this option to enable GPIO driver for the TPS65910
1008 chip family.
1009
1010config GPIO_TPS65912
1011 tristate "TI TPS65912 GPIO"
1012 depends on MFD_TPS65912
1013 help
1014 This driver supports TPS65912 gpio chip
1015
1016config GPIO_TWL4030
1017 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1018 depends on TWL4030_CORE
1019 help
1020 Say yes here to access the GPIO signals of various multi-function
1021 power management chips from Texas Instruments.
1022
1023config GPIO_TWL6040
1024 tristate "TWL6040 GPO"
1025 depends on TWL6040_CORE
1026 help
1027 Say yes here to access the GPO signals of twl6040
1028 audio chip from Texas Instruments.
1029
1030config GPIO_UCB1400
1031 tristate "Philips UCB1400 GPIO"
1032 depends on UCB1400_CORE
1033 help
1034 This enables support for the Philips UCB1400 GPIO pins.
1035 The UCB1400 is an AC97 audio codec.
1036
1037config GPIO_WHISKEY_COVE
1038 tristate "GPIO support for Whiskey Cove PMIC"
1039 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1040 select GPIOLIB_IRQCHIP
1041 help
1042 Support for GPIO pins on Whiskey Cove PMIC.
1043
1044 Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1045 inside.
1046
1047 This driver can also be built as a module. If so, the module will be
1048 called gpio-wcove.
1049
1050config GPIO_WM831X
1051 tristate "WM831x GPIOs"
1052 depends on MFD_WM831X
1053 help
1054 Say yes here to access the GPIO signals of WM831x power management
1055 chips from Wolfson Microelectronics.
1056
1057config GPIO_WM8350
1058 tristate "WM8350 GPIOs"
1059 depends on MFD_WM8350
1060 help
1061 Say yes here to access the GPIO signals of WM8350 power management
1062 chips from Wolfson Microelectronics.
1063
1064config GPIO_WM8994
1065 tristate "WM8994 GPIOs"
1066 depends on MFD_WM8994
1067 help
1068 Say yes here to access the GPIO signals of WM8994 audio hub
1069 CODECs from Wolfson Microelectronics.
1070
1071endmenu
1072
1073menu "PCI GPIO expanders"
1074 depends on PCI
1075
1076config GPIO_AMD8111
1077 tristate "AMD 8111 GPIO driver"
1078 depends on X86 || COMPILE_TEST
1079 help
1080 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1081
1082 Note, that usually system firmware/ACPI handles GPIO pins on their
1083 own and users might easily break their systems with uncarefull usage
1084 of this driver!
1085
1086 If unsure, say N
1087
1088config GPIO_BT8XX
1089 tristate "BT8XX GPIO abuser"
1090 depends on VIDEO_BT848=n
1091 help
1092 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1093 as a cheap PCI GPIO card.
1094
1095 This chip can be found on Miro, Hauppauge and STB TV-cards.
1096
1097 The card needs to be physically altered for using it as a
1098 GPIO card. For more information on how to build a GPIO card
1099 from a BT8xx TV card, see the documentation file at
1100 Documentation/bt8xxgpio.txt
1101
1102 If unsure, say N.
1103
1104config GPIO_INTEL_MID
1105 bool "Intel MID GPIO support"
1106 depends on X86_INTEL_MID
1107 select GPIOLIB_IRQCHIP
1108 help
1109 Say Y here to support Intel MID GPIO.
1110
1111config GPIO_MERRIFIELD
1112 tristate "Intel Merrifield GPIO support"
1113 depends on X86_INTEL_MID
1114 select GPIOLIB_IRQCHIP
1115 help
1116 Say Y here to support Intel Merrifield GPIO.
1117
1118config GPIO_ML_IOH
1119 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1120 depends on X86 || COMPILE_TEST
1121 select GENERIC_IRQ_CHIP
1122 help
1123 ML7213 is companion chip for Intel Atom E6xx series.
1124 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1125 Hub) which is for IVI(In-Vehicle Infotainment) use.
1126 This driver can access the IOH's GPIO device.
1127
1128config GPIO_PCH
1129 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1130 depends on X86_32 || MIPS || COMPILE_TEST
1131 select GENERIC_IRQ_CHIP
1132 help
1133 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1134 which is an IOH(Input/Output Hub) for x86 embedded processor.
1135 This driver can access PCH GPIO device.
1136
1137 This driver also can be used for LAPIS Semiconductor IOH(Input/
1138 Output Hub), ML7223 and ML7831.
1139 ML7223 IOH is for MP(Media Phone) use.
1140 ML7831 IOH is for general purpose use.
1141 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1142 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1143
1144config GPIO_RDC321X
1145 tristate "RDC R-321x GPIO support"
1146 select MFD_CORE
1147 select MFD_RDC321X
1148 help
1149 Support for the RDC R321x SoC GPIOs over southbridge
1150 PCI configuration space.
1151
1152config GPIO_SODAVILLE
1153 bool "Intel Sodaville GPIO support"
1154 depends on X86 && OF
1155 select GPIO_GENERIC
1156 select GENERIC_IRQ_CHIP
1157 help
1158 Say Y here to support Intel Sodaville GPIO.
1159
1160endmenu
1161
1162menu "SPI GPIO expanders"
1163 depends on SPI_MASTER
1164
1165config GPIO_74X164
1166 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1167 depends on OF_GPIO
1168 help
1169 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1170 shift registers. This driver can be used to provide access
1171 to more gpio outputs.
1172
1173config GPIO_MAX7301
1174 tristate "Maxim MAX7301 GPIO expander"
1175 select GPIO_MAX730X
1176 help
1177 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1178
1179config GPIO_MC33880
1180 tristate "Freescale MC33880 high-side/low-side switch"
1181 help
1182 SPI driver for Freescale MC33880 high-side/low-side switch.
1183 This provides GPIO interface supporting inputs and outputs.
1184
1185config GPIO_PISOSR
1186 tristate "Generic parallel-in/serial-out shift register"
1187 help
1188 GPIO driver for SPI compatible parallel-in/serial-out shift
1189 registers. These are input only devices.
1190
1191endmenu
1192
1193menu "SPI or I2C GPIO expanders"
1194 depends on (SPI_MASTER && !I2C) || I2C
1195
1196config GPIO_MCP23S08
1197 tristate "Microchip MCP23xxx I/O expander"
1198 depends on OF_GPIO
1199 select GPIOLIB_IRQCHIP
1200 help
1201 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
1202 I/O expanders.
1203 This provides a GPIO interface supporting inputs and outputs.
1204 The I2C versions of the chips can be used as interrupt-controller.
1205
1206endmenu
1207
1208menu "USB GPIO expanders"
1209 depends on USB
1210
1211config GPIO_VIPERBOARD
1212 tristate "Viperboard GPIO a & b support"
1213 depends on MFD_VIPERBOARD
1214 help
1215 Say yes here to access the GPIO signals of Nano River
1216 Technologies Viperboard. There are two GPIO chips on the
1217 board: gpioa and gpiob.
1218 See viperboard API specification and Nano
1219 River Tech's viperboard.h for detailed meaning
1220 of the module parameters.
1221
1222endmenu
1223
1224endif