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1#
2# GPIO infrastructure and drivers
3#
4
5config ARCH_HAVE_CUSTOM_GPIO_H
6 bool
7 help
8 Selecting this config option from the architecture Kconfig allows
9 the architecture to provide a custom asm/gpio.h implementation
10 overriding the default implementations. New uses of this are
11 strongly discouraged.
12
13config ARCH_WANT_OPTIONAL_GPIOLIB
14 bool
15 help
16 Select this config option from the architecture Kconfig, if
17 it is possible to use gpiolib on the architecture, but let the
18 user decide whether to actually build it or not.
19 Select this instead of ARCH_REQUIRE_GPIOLIB, if your architecture does
20 not depend on GPIOs being available, but rather let the user
21 decide whether he needs it or not.
22
23config ARCH_REQUIRE_GPIOLIB
24 bool
25 select GPIOLIB
26 help
27 Platforms select gpiolib if they use this infrastructure
28 for all their GPIOs, usually starting with ones integrated
29 into SOC processors.
30 Selecting this from the architecture code will cause the gpiolib
31 code to always get built in.
32
33
34menuconfig GPIOLIB
35 bool "GPIO Support"
36 depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB
37 help
38 This enables GPIO support through the generic GPIO library.
39 You only need to enable this, if you also want to enable
40 one or more of the GPIO drivers below.
41
42 If unsure, say N.
43
44if GPIOLIB
45
46config GPIO_DEVRES
47 def_bool y
48 depends on HAS_IOMEM
49
50config OF_GPIO
51 def_bool y
52 depends on OF
53
54config GPIO_ACPI
55 def_bool y
56 depends on ACPI
57
58config GPIOLIB_IRQCHIP
59 select IRQ_DOMAIN
60 bool
61
62config DEBUG_GPIO
63 bool "Debug GPIO calls"
64 depends on DEBUG_KERNEL
65 help
66 Say Y here to add some extra checks and diagnostics to GPIO calls.
67 These checks help ensure that GPIOs have been properly initialized
68 before they are used, and that sleeping calls are not made from
69 non-sleeping contexts. They can make bitbanged serial protocols
70 slower. The diagnostics help catch the type of setup errors
71 that are most common when setting up new platforms or boards.
72
73config GPIO_SYSFS
74 bool "/sys/class/gpio/... (sysfs interface)"
75 depends on SYSFS
76 help
77 Say Y here to add a sysfs interface for GPIOs.
78
79 This is mostly useful to work around omissions in a system's
80 kernel support. Those are common in custom and semicustom
81 hardware assembled using standard kernels with a minimum of
82 custom patches. In those cases, userspace code may import
83 a given GPIO from the kernel, if no kernel driver requested it.
84
85 Kernel drivers may also request that a particular GPIO be
86 exported to userspace; this can be useful when debugging.
87
88config GPIO_GENERIC
89 tristate
90
91# put drivers in the right section, in alphabetical order
92
93# This symbol is selected by both I2C and SPI expanders
94config GPIO_MAX730X
95 tristate
96
97menu "Memory mapped GPIO drivers"
98
99config GPIO_74XX_MMIO
100 tristate "GPIO driver for 74xx-ICs with MMIO access"
101 depends on OF_GPIO
102 select GPIO_GENERIC
103 help
104 Say yes here to support GPIO functionality for 74xx-compatible ICs
105 with MMIO access. Compatible models include:
106 1 bit: 741G125 (Input), 741G74 (Output)
107 2 bits: 742G125 (Input), 7474 (Output)
108 4 bits: 74125 (Input), 74175 (Output)
109 6 bits: 74365 (Input), 74174 (Output)
110 8 bits: 74244 (Input), 74273 (Output)
111 16 bits: 741624 (Input), 7416374 (Output)
112
113config GPIO_ALTERA
114 tristate "Altera GPIO"
115 depends on OF_GPIO
116 select GPIOLIB_IRQCHIP
117 help
118 Say Y or M here to build support for the Altera PIO device.
119
120 If driver is built as a module it will be called gpio-altera.
121
122config GPIO_AMDPT
123 tristate "AMD Promontory GPIO support"
124 depends on ACPI
125 help
126 driver for GPIO functionality on Promontory IOHub
127 Require ACPI ASL code to enumerate as a platform device.
128
129config GPIO_ATH79
130 tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
131 default y if ATH79
132 depends on ATH79 || COMPILE_TEST
133 select GPIO_GENERIC
134 select GPIOLIB_IRQCHIP
135 help
136 Select this option to enable GPIO driver for
137 Atheros AR71XX/AR724X/AR913X SoC devices.
138
139config GPIO_BCM_KONA
140 bool "Broadcom Kona GPIO"
141 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
142 help
143 Turn on GPIO support for Broadcom "Kona" chips.
144
145config GPIO_BRCMSTB
146 tristate "BRCMSTB GPIO support"
147 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
148 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
149 select GPIO_GENERIC
150 select GPIOLIB_IRQCHIP
151 help
152 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
153
154config GPIO_CLPS711X
155 tristate "CLPS711X GPIO support"
156 depends on ARCH_CLPS711X || COMPILE_TEST
157 select GPIO_GENERIC
158 help
159 Say yes here to support GPIO on CLPS711X SoCs.
160
161config GPIO_DAVINCI
162 bool "TI Davinci/Keystone GPIO support"
163 default y if ARCH_DAVINCI
164 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
165 help
166 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
167
168config GPIO_DWAPB
169 tristate "Synopsys DesignWare APB GPIO driver"
170 select GPIO_GENERIC
171 select GENERIC_IRQ_CHIP
172 help
173 Say Y or M here to build support for the Synopsys DesignWare APB
174 GPIO block.
175
176config GPIO_EM
177 tristate "Emma Mobile GPIO"
178 depends on ARM && OF_GPIO
179 help
180 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
181
182config GPIO_EP93XX
183 def_bool y
184 depends on ARCH_EP93XX
185 select GPIO_GENERIC
186
187config GPIO_ETRAXFS
188 bool "Axis ETRAX FS General I/O"
189 depends on CRIS || COMPILE_TEST
190 depends on OF
191 select GPIO_GENERIC
192 select GPIOLIB_IRQCHIP
193 help
194 Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.
195
196config GPIO_GE_FPGA
197 bool "GE FPGA based GPIO"
198 depends on GE_FPGA
199 select GPIO_GENERIC
200 help
201 Support for common GPIO functionality provided on some GE Single Board
202 Computers.
203
204 This driver provides basic support (configure as input or output, read
205 and write pin state) for GPIO implemented in a number of GE single
206 board computers.
207
208config GPIO_GENERIC_PLATFORM
209 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
210 select GPIO_GENERIC
211 help
212 Say yes here to support basic platform_device memory-mapped GPIO controllers.
213
214config GPIO_GRGPIO
215 tristate "Aeroflex Gaisler GRGPIO support"
216 depends on OF
217 select GPIO_GENERIC
218 select IRQ_DOMAIN
219 help
220 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
221 VHDL IP core library.
222
223config GPIO_ICH
224 tristate "Intel ICH GPIO"
225 depends on PCI && X86
226 select MFD_CORE
227 select LPC_ICH
228 help
229 Say yes here to support the GPIO functionality of a number of Intel
230 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
231 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
232 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
233
234 If unsure, say N.
235
236config GPIO_IOP
237 tristate "Intel IOP GPIO"
238 depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
239 help
240 Say yes here to support the GPIO functionality of a number of Intel
241 IOP32X or IOP33X.
242
243 If unsure, say N.
244
245config GPIO_LOONGSON
246 bool "Loongson-2/3 GPIO support"
247 depends on CPU_LOONGSON2 || CPU_LOONGSON3
248 help
249 driver for GPIO functionality on Loongson-2F/3A/3B processors.
250
251config GPIO_LPC18XX
252 bool "NXP LPC18XX/43XX GPIO support"
253 default y if ARCH_LPC18XX
254 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
255 help
256 Select this option to enable GPIO driver for
257 NXP LPC18XX/43XX devices.
258
259config GPIO_LYNXPOINT
260 tristate "Intel Lynxpoint GPIO support"
261 depends on ACPI && X86
262 select GPIOLIB_IRQCHIP
263 help
264 driver for GPIO functionality on Intel Lynxpoint PCH chipset
265 Requires ACPI device enumeration code to set up a platform device.
266
267config GPIO_MB86S7X
268 bool "GPIO support for Fujitsu MB86S7x Platforms"
269 depends on ARCH_MB86S7X || COMPILE_TEST
270 help
271 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
272
273config GPIO_MENZ127
274 tristate "MEN 16Z127 GPIO support"
275 depends on MCB
276 select GPIO_GENERIC
277 help
278 Say yes here to support the MEN 16Z127 GPIO Controller
279
280config GPIO_MM_LANTIQ
281 bool "Lantiq Memory mapped GPIOs"
282 depends on LANTIQ && SOC_XWAY
283 help
284 This enables support for memory mapped GPIOs on the External Bus Unit
285 (EBU) found on Lantiq SoCs. The gpios are output only as they are
286 created by attaching a 16bit latch to the bus.
287
288config GPIO_MOXART
289 bool "MOXART GPIO support"
290 depends on ARCH_MOXART || COMPILE_TEST
291 select GPIO_GENERIC
292 help
293 Select this option to enable GPIO driver for
294 MOXA ART SoC devices.
295
296config GPIO_MPC5200
297 def_bool y
298 depends on PPC_MPC52xx
299
300config GPIO_MPC8XXX
301 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
302 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
303 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
304 COMPILE_TEST
305 select GPIO_GENERIC
306 help
307 Say Y here if you're going to use hardware that connects to the
308 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
309
310config GPIO_MVEBU
311 def_bool y
312 depends on PLAT_ORION
313 depends on OF
314 select GENERIC_IRQ_CHIP
315
316config GPIO_MXC
317 def_bool y
318 depends on ARCH_MXC
319 select GPIO_GENERIC
320 select GENERIC_IRQ_CHIP
321
322config GPIO_MXS
323 def_bool y
324 depends on ARCH_MXS
325 select GPIO_GENERIC
326 select GENERIC_IRQ_CHIP
327
328config GPIO_OCTEON
329 tristate "Cavium OCTEON GPIO"
330 depends on GPIOLIB && CAVIUM_OCTEON_SOC
331 default y
332 help
333 Say yes here to support the on-chip GPIO lines on the OCTEON
334 family of SOCs.
335
336config GPIO_OMAP
337 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
338 default y if ARCH_OMAP
339 depends on ARM
340 select GENERIC_IRQ_CHIP
341 select GPIOLIB_IRQCHIP
342 help
343 Say yes here to enable GPIO support for TI OMAP SoCs.
344
345config GPIO_PL061
346 bool "PrimeCell PL061 GPIO support"
347 depends on ARM_AMBA
348 select IRQ_DOMAIN
349 select GPIOLIB_IRQCHIP
350 help
351 Say yes here to support the PrimeCell PL061 GPIO device
352
353config GPIO_PXA
354 bool "PXA GPIO support"
355 depends on ARCH_PXA || ARCH_MMP
356 help
357 Say yes here to support the PXA GPIO device
358
359config GPIO_RCAR
360 tristate "Renesas R-Car GPIO"
361 depends on ARCH_RENESAS || COMPILE_TEST
362 select GPIOLIB_IRQCHIP
363 help
364 Say yes here to support GPIO on Renesas R-Car SoCs.
365
366config GPIO_SPEAR_SPICS
367 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
368 depends on PLAT_SPEAR
369 select GENERIC_IRQ_CHIP
370 help
371 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
372
373config GPIO_STA2X11
374 bool "STA2x11/ConneXt GPIO support"
375 depends on MFD_STA2X11
376 select GENERIC_IRQ_CHIP
377 help
378 Say yes here to support the STA2x11/ConneXt GPIO device.
379 The GPIO module has 128 GPIO pins with alternate functions.
380
381config GPIO_STP_XWAY
382 bool "XWAY STP GPIOs"
383 depends on SOC_XWAY
384 help
385 This enables support for the Serial To Parallel (STP) unit found on
386 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
387 that can be up to 24 bit. This peripheral is aimed at driving leds.
388 Some of the gpios/leds can be auto updated by the soc with dsl and
389 phy status.
390
391config GPIO_SYSCON
392 tristate "GPIO based on SYSCON"
393 depends on MFD_SYSCON && OF
394 help
395 Say yes here to support GPIO functionality though SYSCON driver.
396
397config GPIO_TB10X
398 bool
399 select GENERIC_IRQ_CHIP
400 select OF_GPIO
401
402config GPIO_TS4800
403 tristate "TS-4800 DIO blocks and compatibles"
404 depends on OF_GPIO
405 depends on SOC_IMX51 || COMPILE_TEST
406 select GPIO_GENERIC
407 help
408 This driver support TS-4800 FPGA GPIO controllers.
409
410config GPIO_TZ1090
411 bool "Toumaz Xenif TZ1090 GPIO support"
412 depends on SOC_TZ1090
413 select GENERIC_IRQ_CHIP
414 default y
415 help
416 Say yes here to support Toumaz Xenif TZ1090 GPIOs.
417
418config GPIO_TZ1090_PDC
419 bool "Toumaz Xenif TZ1090 PDC GPIO support"
420 depends on SOC_TZ1090
421 default y
422 help
423 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
424
425config GPIO_VF610
426 def_bool y
427 depends on ARCH_MXC && SOC_VF610
428 select GPIOLIB_IRQCHIP
429 help
430 Say yes here to support Vybrid vf610 GPIOs.
431
432config GPIO_VR41XX
433 tristate "NEC VR4100 series General-purpose I/O Uint support"
434 depends on CPU_VR41XX
435 help
436 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
437
438config GPIO_VX855
439 tristate "VIA VX855/VX875 GPIO"
440 depends on PCI
441 select MFD_CORE
442 select MFD_VX855
443 help
444 Support access to the VX855/VX875 GPIO lines through the gpio library.
445
446 This driver provides common support for accessing the device,
447 additional drivers must be enabled in order to use the
448 functionality of the device.
449
450config GPIO_XGENE
451 bool "APM X-Gene GPIO controller support"
452 depends on ARM64 && OF_GPIO
453 help
454 This driver is to support the GPIO block within the APM X-Gene SoC
455 platform's generic flash controller. The GPIO pins are muxed with
456 the generic flash controller's address and data pins. Say yes
457 here to enable the GFC GPIO functionality.
458
459config GPIO_XGENE_SB
460 tristate "APM X-Gene GPIO standby controller support"
461 depends on ARCH_XGENE && OF_GPIO
462 select GPIO_GENERIC
463 select GPIOLIB_IRQCHIP
464 help
465 This driver supports the GPIO block within the APM X-Gene
466 Standby Domain. Say yes here to enable the GPIO functionality.
467
468config GPIO_XILINX
469 tristate "Xilinx GPIO support"
470 depends on OF_GPIO
471 help
472 Say yes here to support the Xilinx FPGA GPIO device
473
474config GPIO_XLP
475 tristate "Netlogic XLP GPIO support"
476 depends on CPU_XLP && OF_GPIO
477 select GPIOLIB_IRQCHIP
478 help
479 This driver provides support for GPIO interface on Netlogic XLP MIPS64
480 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
481 XLP9XX and XLP5XX.
482
483 If unsure, say N.
484
485config GPIO_XTENSA
486 bool "Xtensa GPIO32 support"
487 depends on XTENSA
488 depends on HAVE_XTENSA_GPIO32
489 depends on !SMP
490 help
491 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
492 and EXPSTATE (output) ports
493
494config GPIO_ZEVIO
495 bool "LSI ZEVIO SoC memory mapped GPIOs"
496 depends on ARM && OF_GPIO
497 help
498 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
499
500config GPIO_ZYNQ
501 tristate "Xilinx Zynq GPIO support"
502 depends on ARCH_ZYNQ || ARCH_ZYNQMP
503 select GPIOLIB_IRQCHIP
504 help
505 Say yes here to support Xilinx Zynq GPIO controller.
506
507config GPIO_ZX
508 bool "ZTE ZX GPIO support"
509 select GPIOLIB_IRQCHIP
510 help
511 Say yes here to support the GPIO device on ZTE ZX SoCs.
512
513endmenu
514
515menu "Port-mapped I/O GPIO drivers"
516 depends on X86 # Unconditional I/O space access
517
518config GPIO_104_DIO_48E
519 tristate "ACCES 104-DIO-48E GPIO support"
520 select GPIOLIB_IRQCHIP
521 help
522 Enables GPIO support for the ACCES 104-DIO-48E family. The base port
523 address for the device may be configured via the dio_48e_base module
524 parameter. The interrupt line number for the device may be configured
525 via the dio_48e_irq module parameter.
526
527config GPIO_104_IDIO_16
528 tristate "ACCES 104-IDIO-16 GPIO support"
529 select GPIOLIB_IRQCHIP
530 help
531 Enables GPIO support for the ACCES 104-IDIO-16 family. The base port
532 address for the device may be set via the idio_16_base module
533 parameter. The interrupt line number for the device may be set via the
534 idio_16_irq module parameter.
535
536config GPIO_104_IDI_48
537 tristate "ACCES 104-IDI-48 GPIO support"
538 select GPIOLIB_IRQCHIP
539 help
540 Enables GPIO support for the ACCES 104-IDI-48 family. The base port
541 address for the device may be configured via the idi_48_base module
542 parameter. The interrupt line number for the device may be configured
543 via the idi_48_irq module parameter.
544
545config GPIO_F7188X
546 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
547 help
548 This option enables support for GPIOs found on Fintek Super-I/O
549 chips F71869, F71869A, F71882FG, F71889F and F81866.
550
551 To compile this driver as a module, choose M here: the module will
552 be called f7188x-gpio.
553
554config GPIO_IT87
555 tristate "IT87xx GPIO support"
556 help
557 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
558
559 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
560 supports the IT8761E Super I/O chip as well.
561
562 To compile this driver as a module, choose M here: the module will
563 be called gpio_it87
564
565config GPIO_SCH
566 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
567 depends on PCI
568 select MFD_CORE
569 select LPC_SCH
570 help
571 Say yes here to support GPIO interface on Intel Poulsbo SCH,
572 Intel Tunnel Creek processor, Intel Centerton processor or
573 Intel Quark X1000 SoC.
574
575 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
576 powered by the core power rail and are turned off during sleep
577 modes (S3 and higher). The remaining four GPIOs are powered by
578 the Intel SCH suspend power supply. These GPIOs remain
579 active during S3. The suspend powered GPIOs can be used to wake the
580 system from the Suspend-to-RAM state.
581
582 The Intel Tunnel Creek processor has 5 GPIOs powered by the
583 core power rail and 9 from suspend power supply.
584
585 The Intel Centerton processor has a total of 30 GPIO pins.
586 Twenty-one are powered by the core power rail and 9 from the
587 suspend power supply.
588
589 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
590 power well and 6 from the suspend power well.
591
592config GPIO_SCH311X
593 tristate "SMSC SCH311x SuperI/O GPIO"
594 help
595 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
596 SCH3116 "Super I/O" chipsets.
597
598 To compile this driver as a module, choose M here: the module will
599 be called gpio-sch311x.
600
601config GPIO_TS5500
602 tristate "TS-5500 DIO blocks and compatibles"
603 depends on TS5500 || COMPILE_TEST
604 help
605 This driver supports Digital I/O exposed by pin blocks found on some
606 Technologic Systems platforms. It includes, but is not limited to, 3
607 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
608 LCD port.
609
610config GPIO_WS16C48
611 tristate "WinSystems WS16C48 GPIO support"
612 select GPIOLIB_IRQCHIP
613 help
614 Enables GPIO support for the WinSystems WS16C48. The base port address
615 for the device may be configured via the ws16c48_base module
616 parameter. The interrupt line number for the device may be configured
617 via the ws16c48_irq module parameter.
618
619endmenu
620
621menu "I2C GPIO expanders"
622 depends on I2C
623
624config GPIO_ADP5588
625 tristate "ADP5588 I2C GPIO expander"
626 help
627 This option enables support for 18 GPIOs found
628 on Analog Devices ADP5588 GPIO Expanders.
629
630config GPIO_ADP5588_IRQ
631 bool "Interrupt controller support for ADP5588"
632 depends on GPIO_ADP5588=y
633 help
634 Say yes here to enable the adp5588 to be used as an interrupt
635 controller. It requires the driver to be built in the kernel.
636
637config GPIO_ADNP
638 tristate "Avionic Design N-bit GPIO expander"
639 depends on OF_GPIO
640 select GPIOLIB_IRQCHIP
641 help
642 This option enables support for N GPIOs found on Avionic Design
643 I2C GPIO expanders. The register space will be extended by powers
644 of two, so the controller will need to accommodate for that. For
645 example: if a controller provides 48 pins, 6 registers will be
646 enough to represent all pins, but the driver will assume a
647 register layout for 64 pins (8 registers).
648
649config GPIO_MAX7300
650 tristate "Maxim MAX7300 GPIO expander"
651 select GPIO_MAX730X
652 help
653 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
654
655config GPIO_MAX732X
656 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
657 help
658 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
659 Port Expanders. Each IO port on these chips has a fixed role of
660 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
661 Input and Output (designed by 'P'). The combinations are listed
662 below:
663
664 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
665 max7322 (4I4O), max7323 (4P4O)
666
667 16 bits: max7324 (8I8O), max7325 (8P8O),
668 max7326 (4I12O), max7327 (4P12O)
669
670 Board setup code must specify the model to use, and the start
671 number for these GPIOs.
672
673config GPIO_MAX732X_IRQ
674 bool "Interrupt controller support for MAX732x"
675 depends on GPIO_MAX732X=y
676 select GPIOLIB_IRQCHIP
677 help
678 Say yes here to enable the max732x to be used as an interrupt
679 controller. It requires the driver to be built in the kernel.
680
681config GPIO_MC9S08DZ60
682 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
683 depends on I2C=y && MACH_MX35_3DS
684 help
685 Select this to enable the MC9S08DZ60 GPIO driver
686
687config GPIO_PCA953X
688 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
689 help
690 Say yes here to provide access to several register-oriented
691 SMBus I/O expanders, made mostly by NXP or TI. Compatible
692 models include:
693
694 4 bits: pca9536, pca9537
695
696 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
697 pca9556, pca9557, pca9574, tca6408, xra1202
698
699 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
700 tca6416
701
702 24 bits: tca6424
703
704 40 bits: pca9505, pca9698
705
706config GPIO_PCA953X_IRQ
707 bool "Interrupt controller support for PCA953x"
708 depends on GPIO_PCA953X=y
709 select GPIOLIB_IRQCHIP
710 help
711 Say yes here to enable the pca953x to be used as an interrupt
712 controller. It requires the driver to be built in the kernel.
713
714config GPIO_PCF857X
715 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
716 select GPIOLIB_IRQCHIP
717 select IRQ_DOMAIN
718 help
719 Say yes here to provide access to most "quasi-bidirectional" I2C
720 GPIO expanders used for additional digital outputs or inputs.
721 Most of these parts are from NXP, though TI is a second source for
722 some of them. Compatible models include:
723
724 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
725 pca9670, pca9672, pca9674, pca9674a,
726 max7328, max7329
727
728 16 bits: pcf8575, pcf8575c, pca8575,
729 pca9671, pca9673, pca9675
730
731 Your board setup code will need to declare the expanders in
732 use, and assign numbers to the GPIOs they expose. Those GPIOs
733 can then be used from drivers and other kernel code, just like
734 other GPIOs, but only accessible from task contexts.
735
736 This driver provides an in-kernel interface to those GPIOs using
737 platform-neutral GPIO calls.
738
739config GPIO_SX150X
740 bool "Semtech SX150x I2C GPIO expander"
741 depends on I2C=y
742 select GPIOLIB_IRQCHIP
743 default n
744 help
745 Say yes here to provide support for Semtech SX150-series I2C
746 GPIO expanders. Compatible models include:
747
748 8 bits: sx1508q
749 16 bits: sx1509q
750
751config GPIO_TPIC2810
752 tristate "TPIC2810 8-Bit I2C GPO expander"
753 help
754 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
755
756 To compile this driver as a module, choose M here: the module will
757 be called gpio-tpic2810.
758
759endmenu
760
761menu "MFD GPIO expanders"
762
763config GPIO_ADP5520
764 tristate "GPIO Support for ADP5520 PMIC"
765 depends on PMIC_ADP5520
766 help
767 This option enables support for on-chip GPIO found
768 on Analog Devices ADP5520 PMICs.
769
770config GPIO_ARIZONA
771 tristate "Wolfson Microelectronics Arizona class devices"
772 depends on MFD_ARIZONA
773 help
774 Support for GPIOs on Wolfson Arizona class devices.
775
776config GPIO_CRYSTAL_COVE
777 tristate "GPIO support for Crystal Cove PMIC"
778 depends on INTEL_SOC_PMIC
779 select GPIOLIB_IRQCHIP
780 help
781 Support for GPIO pins on Crystal Cove PMIC.
782
783 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
784 inside.
785
786 This driver can also be built as a module. If so, the module will be
787 called gpio-crystalcove.
788
789config GPIO_CS5535
790 tristate "AMD CS5535/CS5536 GPIO support"
791 depends on MFD_CS5535
792 help
793 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
794 can be used for quite a number of things. The CS5535/6 is found on
795 AMD Geode and Lemote Yeeloong devices.
796
797 If unsure, say N.
798
799config GPIO_DA9052
800 tristate "Dialog DA9052 GPIO"
801 depends on PMIC_DA9052
802 help
803 Say yes here to enable the GPIO driver for the DA9052 chip.
804
805config GPIO_DA9055
806 tristate "Dialog Semiconductor DA9055 GPIO"
807 depends on MFD_DA9055
808 help
809 Say yes here to enable the GPIO driver for the DA9055 chip.
810
811 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
812 be controller by this driver.
813
814 If driver is built as a module it will be called gpio-da9055.
815
816config GPIO_DLN2
817 tristate "Diolan DLN2 GPIO support"
818 depends on MFD_DLN2
819 select GPIOLIB_IRQCHIP
820
821 help
822 Select this option to enable GPIO driver for the Diolan DLN2
823 board.
824
825 This driver can also be built as a module. If so, the module
826 will be called gpio-dln2.
827
828config GPIO_JANZ_TTL
829 tristate "Janz VMOD-TTL Digital IO Module"
830 depends on MFD_JANZ_CMODIO
831 help
832 This enables support for the Janz VMOD-TTL Digital IO module.
833 This driver provides support for driving the pins in output
834 mode only. Input mode is not supported.
835
836config GPIO_KEMPLD
837 tristate "Kontron ETX / COMexpress GPIO"
838 depends on MFD_KEMPLD
839 help
840 This enables support for the PLD GPIO interface on some Kontron ETX
841 and COMexpress (ETXexpress) modules.
842
843 This driver can also be built as a module. If so, the module will be
844 called gpio-kempld.
845
846config GPIO_LP3943
847 tristate "TI/National Semiconductor LP3943 GPIO expander"
848 depends on MFD_LP3943
849 help
850 GPIO driver for LP3943 MFD.
851 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
852 Open drain outputs are required for this usage.
853
854config GPIO_MSIC
855 bool "Intel MSIC mixed signal gpio support"
856 depends on MFD_INTEL_MSIC
857 help
858 Enable support for GPIO on intel MSIC controllers found in
859 intel MID devices
860
861config GPIO_PALMAS
862 bool "TI PALMAS series PMICs GPIO"
863 depends on MFD_PALMAS
864 help
865 Select this option to enable GPIO driver for the TI PALMAS
866 series chip family.
867
868config GPIO_RC5T583
869 bool "RICOH RC5T583 GPIO"
870 depends on MFD_RC5T583
871 help
872 Select this option to enable GPIO driver for the Ricoh RC5T583
873 chip family.
874 This driver provides the support for driving/reading the gpio pins
875 of RC5T583 device through standard gpio library.
876
877config GPIO_STMPE
878 bool "STMPE GPIOs"
879 depends on MFD_STMPE
880 depends on OF_GPIO
881 select GPIOLIB_IRQCHIP
882 help
883 This enables support for the GPIOs found on the STMPE I/O
884 Expanders.
885
886config GPIO_TC3589X
887 bool "TC3589X GPIOs"
888 depends on MFD_TC3589X
889 depends on OF_GPIO
890 select GPIOLIB_IRQCHIP
891 help
892 This enables support for the GPIOs found on the TC3589X
893 I/O Expander.
894
895config GPIO_TIMBERDALE
896 bool "Support for timberdale GPIO IP"
897 depends on MFD_TIMBERDALE
898 ---help---
899 Add support for the GPIO IP in the timberdale FPGA.
900
901config GPIO_TPS65086
902 tristate "TI TPS65086 GPO"
903 depends on MFD_TPS65086
904 help
905 This driver supports the GPO on TI TPS65086x PMICs.
906
907config GPIO_TPS65218
908 tristate "TPS65218 GPIO"
909 depends on MFD_TPS65218
910 help
911 Select this option to enable GPIO driver for the TPS65218
912 chip family.
913
914config GPIO_TPS6586X
915 bool "TPS6586X GPIO"
916 depends on MFD_TPS6586X
917 help
918 Select this option to enable GPIO driver for the TPS6586X
919 chip family.
920
921config GPIO_TPS65910
922 bool "TPS65910 GPIO"
923 depends on MFD_TPS65910
924 help
925 Select this option to enable GPIO driver for the TPS65910
926 chip family.
927
928config GPIO_TPS65912
929 tristate "TI TPS65912 GPIO"
930 depends on MFD_TPS65912
931 help
932 This driver supports TPS65912 gpio chip
933
934config GPIO_TWL4030
935 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
936 depends on TWL4030_CORE
937 help
938 Say yes here to access the GPIO signals of various multi-function
939 power management chips from Texas Instruments.
940
941config GPIO_TWL6040
942 tristate "TWL6040 GPO"
943 depends on TWL6040_CORE
944 help
945 Say yes here to access the GPO signals of twl6040
946 audio chip from Texas Instruments.
947
948config GPIO_UCB1400
949 tristate "Philips UCB1400 GPIO"
950 depends on UCB1400_CORE
951 help
952 This enables support for the Philips UCB1400 GPIO pins.
953 The UCB1400 is an AC97 audio codec.
954
955config GPIO_WM831X
956 tristate "WM831x GPIOs"
957 depends on MFD_WM831X
958 help
959 Say yes here to access the GPIO signals of WM831x power management
960 chips from Wolfson Microelectronics.
961
962config GPIO_WM8350
963 tristate "WM8350 GPIOs"
964 depends on MFD_WM8350
965 help
966 Say yes here to access the GPIO signals of WM8350 power management
967 chips from Wolfson Microelectronics.
968
969config GPIO_WM8994
970 tristate "WM8994 GPIOs"
971 depends on MFD_WM8994
972 help
973 Say yes here to access the GPIO signals of WM8994 audio hub
974 CODECs from Wolfson Microelectronics.
975
976endmenu
977
978menu "PCI GPIO expanders"
979 depends on PCI
980
981config GPIO_AMD8111
982 tristate "AMD 8111 GPIO driver"
983 help
984 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
985
986 Note, that usually system firmware/ACPI handles GPIO pins on their
987 own and users might easily break their systems with uncarefull usage
988 of this driver!
989
990 If unsure, say N
991
992config GPIO_BT8XX
993 tristate "BT8XX GPIO abuser"
994 depends on VIDEO_BT848=n
995 help
996 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
997 as a cheap PCI GPIO card.
998
999 This chip can be found on Miro, Hauppauge and STB TV-cards.
1000
1001 The card needs to be physically altered for using it as a
1002 GPIO card. For more information on how to build a GPIO card
1003 from a BT8xx TV card, see the documentation file at
1004 Documentation/bt8xxgpio.txt
1005
1006 If unsure, say N.
1007
1008config GPIO_INTEL_MID
1009 bool "Intel Mid GPIO support"
1010 depends on X86
1011 select GPIOLIB_IRQCHIP
1012 help
1013 Say Y here to support Intel Mid GPIO.
1014
1015config GPIO_ML_IOH
1016 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1017 select GENERIC_IRQ_CHIP
1018 help
1019 ML7213 is companion chip for Intel Atom E6xx series.
1020 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1021 Hub) which is for IVI(In-Vehicle Infotainment) use.
1022 This driver can access the IOH's GPIO device.
1023
1024config GPIO_PCH
1025 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1026 depends on X86_32 || MIPS || COMPILE_TEST
1027 select GENERIC_IRQ_CHIP
1028 help
1029 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1030 which is an IOH(Input/Output Hub) for x86 embedded processor.
1031 This driver can access PCH GPIO device.
1032
1033 This driver also can be used for LAPIS Semiconductor IOH(Input/
1034 Output Hub), ML7223 and ML7831.
1035 ML7223 IOH is for MP(Media Phone) use.
1036 ML7831 IOH is for general purpose use.
1037 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1038 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1039
1040config GPIO_RDC321X
1041 tristate "RDC R-321x GPIO support"
1042 select MFD_CORE
1043 select MFD_RDC321X
1044 help
1045 Support for the RDC R321x SoC GPIOs over southbridge
1046 PCI configuration space.
1047
1048config GPIO_SODAVILLE
1049 bool "Intel Sodaville GPIO support"
1050 depends on X86 && OF
1051 select GPIO_GENERIC
1052 select GENERIC_IRQ_CHIP
1053 help
1054 Say Y here to support Intel Sodaville GPIO.
1055
1056endmenu
1057
1058menu "SPI GPIO expanders"
1059 depends on SPI_MASTER
1060
1061config GPIO_74X164
1062 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1063 depends on OF
1064 help
1065 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1066 shift registers. This driver can be used to provide access
1067 to more gpio outputs.
1068
1069config GPIO_MAX7301
1070 tristate "Maxim MAX7301 GPIO expander"
1071 select GPIO_MAX730X
1072 help
1073 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1074
1075config GPIO_MC33880
1076 tristate "Freescale MC33880 high-side/low-side switch"
1077 help
1078 SPI driver for Freescale MC33880 high-side/low-side switch.
1079 This provides GPIO interface supporting inputs and outputs.
1080
1081config GPIO_PISOSR
1082 tristate "Generic parallel-in/serial-out shift register"
1083 help
1084 GPIO driver for SPI compatible parallel-in/serial-out shift
1085 registers. These are input only devices.
1086
1087endmenu
1088
1089menu "SPI or I2C GPIO expanders"
1090 depends on (SPI_MASTER && !I2C) || I2C
1091
1092config GPIO_MCP23S08
1093 tristate "Microchip MCP23xxx I/O expander"
1094 help
1095 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
1096 I/O expanders.
1097 This provides a GPIO interface supporting inputs and outputs.
1098 The I2C versions of the chips can be used as interrupt-controller.
1099
1100endmenu
1101
1102menu "USB GPIO expanders"
1103 depends on USB
1104
1105config GPIO_VIPERBOARD
1106 tristate "Viperboard GPIO a & b support"
1107 depends on MFD_VIPERBOARD
1108 help
1109 Say yes here to access the GPIO signals of Nano River
1110 Technologies Viperboard. There are two GPIO chips on the
1111 board: gpioa and gpiob.
1112 See viperboard API specification and Nano
1113 River Tech's viperboard.h for detailed meaning
1114 of the module parameters.
1115
1116endmenu
1117
1118endif
1#
2# GPIO infrastructure and drivers
3#
4
5config ARCH_HAVE_CUSTOM_GPIO_H
6 bool
7 help
8 Selecting this config option from the architecture Kconfig allows
9 the architecture to provide a custom asm/gpio.h implementation
10 overriding the default implementations. New uses of this are
11 strongly discouraged.
12
13menuconfig GPIOLIB
14 bool "GPIO Support"
15 select ANON_INODES
16 help
17 This enables GPIO support through the generic GPIO library.
18 You only need to enable this, if you also want to enable
19 one or more of the GPIO drivers below.
20
21 If unsure, say N.
22
23if GPIOLIB
24
25config OF_GPIO
26 def_bool y
27 depends on OF
28 depends on HAS_IOMEM
29
30config GPIO_ACPI
31 def_bool y
32 depends on ACPI
33
34config GPIOLIB_IRQCHIP
35 select IRQ_DOMAIN
36 bool
37
38config DEBUG_GPIO
39 bool "Debug GPIO calls"
40 depends on DEBUG_KERNEL
41 help
42 Say Y here to add some extra checks and diagnostics to GPIO calls.
43 These checks help ensure that GPIOs have been properly initialized
44 before they are used, and that sleeping calls are not made from
45 non-sleeping contexts. They can make bitbanged serial protocols
46 slower. The diagnostics help catch the type of setup errors
47 that are most common when setting up new platforms or boards.
48
49config GPIO_SYSFS
50 bool "/sys/class/gpio/... (sysfs interface)"
51 depends on SYSFS
52 help
53 Say Y here to add a sysfs interface for GPIOs.
54
55 This is mostly useful to work around omissions in a system's
56 kernel support. Those are common in custom and semicustom
57 hardware assembled using standard kernels with a minimum of
58 custom patches. In those cases, userspace code may import
59 a given GPIO from the kernel, if no kernel driver requested it.
60
61 Kernel drivers may also request that a particular GPIO be
62 exported to userspace; this can be useful when debugging.
63
64config GPIO_GENERIC
65 depends on HAS_IOMEM # Only for IOMEM drivers
66 tristate
67
68# put drivers in the right section, in alphabetical order
69
70# This symbol is selected by both I2C and SPI expanders
71config GPIO_MAX730X
72 tristate
73
74menu "Memory mapped GPIO drivers"
75 depends on HAS_IOMEM
76
77config GPIO_74XX_MMIO
78 tristate "GPIO driver for 74xx-ICs with MMIO access"
79 depends on OF_GPIO
80 select GPIO_GENERIC
81 help
82 Say yes here to support GPIO functionality for 74xx-compatible ICs
83 with MMIO access. Compatible models include:
84 1 bit: 741G125 (Input), 741G74 (Output)
85 2 bits: 742G125 (Input), 7474 (Output)
86 4 bits: 74125 (Input), 74175 (Output)
87 6 bits: 74365 (Input), 74174 (Output)
88 8 bits: 74244 (Input), 74273 (Output)
89 16 bits: 741624 (Input), 7416374 (Output)
90
91config GPIO_ALTERA
92 tristate "Altera GPIO"
93 depends on OF_GPIO
94 select GPIOLIB_IRQCHIP
95 help
96 Say Y or M here to build support for the Altera PIO device.
97
98 If driver is built as a module it will be called gpio-altera.
99
100config GPIO_AMDPT
101 tristate "AMD Promontory GPIO support"
102 depends on ACPI
103 select GPIO_GENERIC
104 help
105 driver for GPIO functionality on Promontory IOHub
106 Require ACPI ASL code to enumerate as a platform device.
107
108config GPIO_ASPEED
109 tristate "Aspeed GPIO support"
110 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
111 select GPIOLIB_IRQCHIP
112 help
113 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
114
115config GPIO_ATH79
116 tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
117 default y if ATH79
118 depends on ATH79 || COMPILE_TEST
119 select GPIO_GENERIC
120 select GPIOLIB_IRQCHIP
121 help
122 Select this option to enable GPIO driver for
123 Atheros AR71XX/AR724X/AR913X SoC devices.
124
125config GPIO_RASPBERRYPI_EXP
126 tristate "Raspberry Pi 3 GPIO Expander"
127 default RASPBERRYPI_FIRMWARE
128 depends on OF_GPIO
129 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
130 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
131 depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
132 help
133 Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
134 the firmware mailbox to communicate with VideoCore on BCM283x chips.
135
136config GPIO_BCM_KONA
137 bool "Broadcom Kona GPIO"
138 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
139 help
140 Turn on GPIO support for Broadcom "Kona" chips.
141
142config GPIO_BRCMSTB
143 tristate "BRCMSTB GPIO support"
144 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
145 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
146 select GPIO_GENERIC
147 select IRQ_DOMAIN
148 help
149 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
150
151config GPIO_CLPS711X
152 tristate "CLPS711X GPIO support"
153 depends on ARCH_CLPS711X || COMPILE_TEST
154 select GPIO_GENERIC
155 help
156 Say yes here to support GPIO on CLPS711X SoCs.
157
158config GPIO_DAVINCI
159 bool "TI Davinci/Keystone GPIO support"
160 default y if ARCH_DAVINCI
161 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
162 help
163 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
164
165config GPIO_DWAPB
166 tristate "Synopsys DesignWare APB GPIO driver"
167 select GPIO_GENERIC
168 select GENERIC_IRQ_CHIP
169 help
170 Say Y or M here to build support for the Synopsys DesignWare APB
171 GPIO block.
172
173config GPIO_EIC_SPRD
174 tristate "Spreadtrum EIC support"
175 depends on ARCH_SPRD || COMPILE_TEST
176 depends on OF_GPIO
177 select GPIOLIB_IRQCHIP
178 help
179 Say yes here to support Spreadtrum EIC device.
180
181config GPIO_EM
182 tristate "Emma Mobile GPIO"
183 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
184 help
185 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
186
187config GPIO_EP93XX
188 def_bool y
189 depends on ARCH_EP93XX
190 select GPIO_GENERIC
191
192config GPIO_EXAR
193 tristate "Support for GPIO pins on XR17V352/354/358"
194 depends on SERIAL_8250_EXAR
195 help
196 Selecting this option will enable handling of GPIO pins present
197 on Exar XR17V352/354/358 chips.
198
199config GPIO_GE_FPGA
200 bool "GE FPGA based GPIO"
201 depends on GE_FPGA
202 select GPIO_GENERIC
203 help
204 Support for common GPIO functionality provided on some GE Single Board
205 Computers.
206
207 This driver provides basic support (configure as input or output, read
208 and write pin state) for GPIO implemented in a number of GE single
209 board computers.
210
211config GPIO_FTGPIO010
212 bool "Faraday FTGPIO010 GPIO"
213 depends on OF_GPIO
214 select GPIO_GENERIC
215 select GPIOLIB_IRQCHIP
216 default (ARCH_GEMINI || ARCH_MOXART)
217 help
218 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
219 Cortina systems Gemini platforms, Moxa ART and others.
220
221config GPIO_GENERIC_PLATFORM
222 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
223 select GPIO_GENERIC
224 help
225 Say yes here to support basic platform_device memory-mapped GPIO controllers.
226
227config GPIO_GRGPIO
228 tristate "Aeroflex Gaisler GRGPIO support"
229 depends on OF_GPIO
230 select GPIO_GENERIC
231 select IRQ_DOMAIN
232 help
233 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
234 VHDL IP core library.
235
236config GPIO_HLWD
237 tristate "Nintendo Wii (Hollywood) GPIO"
238 depends on OF_GPIO
239 select GPIO_GENERIC
240 help
241 Select this to support the GPIO controller of the Nintendo Wii.
242
243 If unsure, say N.
244
245config GPIO_ICH
246 tristate "Intel ICH GPIO"
247 depends on PCI && X86
248 select MFD_CORE
249 select LPC_ICH
250 help
251 Say yes here to support the GPIO functionality of a number of Intel
252 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
253 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
254 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
255
256 If unsure, say N.
257
258config GPIO_INGENIC
259 tristate "Ingenic JZ47xx SoCs GPIO support"
260 depends on OF
261 depends on MACH_INGENIC || COMPILE_TEST
262 select GPIOLIB_IRQCHIP
263 help
264 Say yes here to support the GPIO functionality present on the
265 JZ4740 and JZ4780 SoCs from Ingenic.
266
267 If unsure, say N.
268
269config GPIO_IOP
270 tristate "Intel IOP GPIO"
271 depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST
272 select GPIO_GENERIC
273 help
274 Say yes here to support the GPIO functionality of a number of Intel
275 IOP32X or IOP33X.
276
277 If unsure, say N.
278
279config GPIO_LOONGSON
280 bool "Loongson-2/3 GPIO support"
281 depends on CPU_LOONGSON2 || CPU_LOONGSON3
282 help
283 driver for GPIO functionality on Loongson-2F/3A/3B processors.
284
285config GPIO_LPC18XX
286 tristate "NXP LPC18XX/43XX GPIO support"
287 default y if ARCH_LPC18XX
288 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
289 help
290 Select this option to enable GPIO driver for
291 NXP LPC18XX/43XX devices.
292
293config GPIO_LYNXPOINT
294 tristate "Intel Lynxpoint GPIO support"
295 depends on ACPI && X86
296 select GPIOLIB_IRQCHIP
297 help
298 driver for GPIO functionality on Intel Lynxpoint PCH chipset
299 Requires ACPI device enumeration code to set up a platform device.
300
301config GPIO_MB86S7X
302 tristate "GPIO support for Fujitsu MB86S7x Platforms"
303 help
304 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
305
306config GPIO_MENZ127
307 tristate "MEN 16Z127 GPIO support"
308 depends on MCB
309 select GPIO_GENERIC
310 help
311 Say yes here to support the MEN 16Z127 GPIO Controller
312
313config GPIO_MM_LANTIQ
314 bool "Lantiq Memory mapped GPIOs"
315 depends on LANTIQ && SOC_XWAY
316 help
317 This enables support for memory mapped GPIOs on the External Bus Unit
318 (EBU) found on Lantiq SoCs. The gpios are output only as they are
319 created by attaching a 16bit latch to the bus.
320
321config GPIO_MOCKUP
322 tristate "GPIO Testing Driver"
323 depends on GPIOLIB && SYSFS
324 select GPIO_SYSFS
325 select GPIOLIB_IRQCHIP
326 select IRQ_SIM
327 help
328 This enables GPIO Testing driver, which provides a way to test GPIO
329 subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
330 must be selected for this test.
331 User could use it through the script in
332 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
333 it.
334
335config GPIO_MPC5200
336 def_bool y
337 depends on PPC_MPC52xx
338
339config GPIO_MPC8XXX
340 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
341 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
342 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
343 COMPILE_TEST
344 select GPIO_GENERIC
345 select IRQ_DOMAIN
346 help
347 Say Y here if you're going to use hardware that connects to the
348 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
349
350config GPIO_MVEBU
351 def_bool y
352 depends on PLAT_ORION || ARCH_MVEBU
353 depends on OF_GPIO
354 select GENERIC_IRQ_CHIP
355 select REGMAP_MMIO
356
357config GPIO_MXC
358 def_bool y
359 depends on ARCH_MXC
360 select GPIO_GENERIC
361 select GENERIC_IRQ_CHIP
362
363config GPIO_MXS
364 def_bool y
365 depends on ARCH_MXS
366 select GPIO_GENERIC
367 select GENERIC_IRQ_CHIP
368
369config GPIO_OCTEON
370 tristate "Cavium OCTEON GPIO"
371 depends on GPIOLIB && CAVIUM_OCTEON_SOC
372 default y
373 help
374 Say yes here to support the on-chip GPIO lines on the OCTEON
375 family of SOCs.
376
377config GPIO_OMAP
378 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
379 default y if ARCH_OMAP
380 depends on ARM
381 select GENERIC_IRQ_CHIP
382 select GPIOLIB_IRQCHIP
383 help
384 Say yes here to enable GPIO support for TI OMAP SoCs.
385
386config GPIO_PL061
387 bool "PrimeCell PL061 GPIO support"
388 depends on ARM_AMBA
389 select IRQ_DOMAIN
390 select GPIOLIB_IRQCHIP
391 help
392 Say yes here to support the PrimeCell PL061 GPIO device
393
394config GPIO_PMIC_EIC_SPRD
395 tristate "Spreadtrum PMIC EIC support"
396 depends on MFD_SC27XX_PMIC || COMPILE_TEST
397 depends on OF_GPIO
398 select GPIOLIB_IRQCHIP
399 help
400 Say yes here to support Spreadtrum PMIC EIC device.
401
402config GPIO_PXA
403 bool "PXA GPIO support"
404 depends on ARCH_PXA || ARCH_MMP
405 help
406 Say yes here to support the PXA GPIO device
407
408config GPIO_RCAR
409 tristate "Renesas R-Car GPIO"
410 depends on ARCH_RENESAS || COMPILE_TEST
411 select GPIOLIB_IRQCHIP
412 help
413 Say yes here to support GPIO on Renesas R-Car SoCs.
414
415config GPIO_REG
416 bool
417 help
418 A 32-bit single register GPIO fixed in/out implementation. This
419 can be used to represent any register as a set of GPIO signals.
420
421config GPIO_SPEAR_SPICS
422 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
423 depends on PLAT_SPEAR
424 select GENERIC_IRQ_CHIP
425 help
426 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
427
428config GPIO_SPRD
429 tristate "Spreadtrum GPIO support"
430 depends on ARCH_SPRD || COMPILE_TEST
431 depends on OF_GPIO
432 select GPIOLIB_IRQCHIP
433 help
434 Say yes here to support Spreadtrum GPIO device.
435
436config GPIO_STA2X11
437 bool "STA2x11/ConneXt GPIO support"
438 depends on MFD_STA2X11
439 select GENERIC_IRQ_CHIP
440 help
441 Say yes here to support the STA2x11/ConneXt GPIO device.
442 The GPIO module has 128 GPIO pins with alternate functions.
443
444config GPIO_STP_XWAY
445 bool "XWAY STP GPIOs"
446 depends on SOC_XWAY
447 help
448 This enables support for the Serial To Parallel (STP) unit found on
449 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
450 that can be up to 24 bit. This peripheral is aimed at driving leds.
451 Some of the gpios/leds can be auto updated by the soc with dsl and
452 phy status.
453
454config GPIO_SYSCON
455 tristate "GPIO based on SYSCON"
456 depends on MFD_SYSCON && OF
457 help
458 Say yes here to support GPIO functionality though SYSCON driver.
459
460config GPIO_TB10X
461 bool
462 select GENERIC_IRQ_CHIP
463 select OF_GPIO
464
465config GPIO_TEGRA
466 bool "NVIDIA Tegra GPIO support"
467 default ARCH_TEGRA
468 depends on ARCH_TEGRA || COMPILE_TEST
469 depends on OF_GPIO
470 help
471 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
472
473config GPIO_TEGRA186
474 tristate "NVIDIA Tegra186 GPIO support"
475 default ARCH_TEGRA_186_SOC
476 depends on ARCH_TEGRA_186_SOC || COMPILE_TEST
477 depends on OF_GPIO
478 select GPIOLIB_IRQCHIP
479 help
480 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
481
482config GPIO_TS4800
483 tristate "TS-4800 DIO blocks and compatibles"
484 depends on OF_GPIO
485 depends on SOC_IMX51 || COMPILE_TEST
486 select GPIO_GENERIC
487 help
488 This driver support TS-4800 FPGA GPIO controllers.
489
490config GPIO_THUNDERX
491 tristate "Cavium ThunderX/OCTEON-TX GPIO"
492 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
493 depends on PCI_MSI
494 select IRQ_DOMAIN_HIERARCHY
495 select IRQ_FASTEOI_HIERARCHY_HANDLERS
496 help
497 Say yes here to support the on-chip GPIO lines on the ThunderX
498 and OCTEON-TX families of SoCs.
499
500config GPIO_UNIPHIER
501 tristate "UniPhier GPIO support"
502 depends on ARCH_UNIPHIER || COMPILE_TEST
503 depends on OF_GPIO
504 select IRQ_DOMAIN_HIERARCHY
505 help
506 Say yes here to support UniPhier GPIOs.
507
508config GPIO_VF610
509 def_bool y
510 depends on ARCH_MXC && SOC_VF610
511 select GPIOLIB_IRQCHIP
512 help
513 Say yes here to support Vybrid vf610 GPIOs.
514
515config GPIO_VR41XX
516 tristate "NEC VR4100 series General-purpose I/O Uint support"
517 depends on CPU_VR41XX
518 help
519 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
520
521config GPIO_VX855
522 tristate "VIA VX855/VX875 GPIO"
523 depends on (X86 || COMPILE_TEST) && PCI
524 select MFD_CORE
525 select MFD_VX855
526 help
527 Support access to the VX855/VX875 GPIO lines through the gpio library.
528
529 This driver provides common support for accessing the device,
530 additional drivers must be enabled in order to use the
531 functionality of the device.
532
533config GPIO_XGENE
534 bool "APM X-Gene GPIO controller support"
535 depends on ARM64 && OF_GPIO
536 help
537 This driver is to support the GPIO block within the APM X-Gene SoC
538 platform's generic flash controller. The GPIO pins are muxed with
539 the generic flash controller's address and data pins. Say yes
540 here to enable the GFC GPIO functionality.
541
542config GPIO_XGENE_SB
543 tristate "APM X-Gene GPIO standby controller support"
544 depends on ARCH_XGENE && OF_GPIO
545 select GPIO_GENERIC
546 select GPIOLIB_IRQCHIP
547 select IRQ_DOMAIN_HIERARCHY
548 help
549 This driver supports the GPIO block within the APM X-Gene
550 Standby Domain. Say yes here to enable the GPIO functionality.
551
552config GPIO_XILINX
553 tristate "Xilinx GPIO support"
554 depends on OF_GPIO
555 help
556 Say yes here to support the Xilinx FPGA GPIO device
557
558config GPIO_XLP
559 tristate "Netlogic XLP GPIO support"
560 depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
561 select GPIOLIB_IRQCHIP
562 help
563 This driver provides support for GPIO interface on Netlogic XLP MIPS64
564 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
565 XLP9XX and XLP5XX. The same GPIO controller block is also present in
566 Cavium's ThunderX2 CN99XX SoCs.
567
568 If unsure, say N.
569
570config GPIO_XTENSA
571 bool "Xtensa GPIO32 support"
572 depends on XTENSA
573 depends on HAVE_XTENSA_GPIO32
574 depends on !SMP
575 help
576 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
577 and EXPSTATE (output) ports
578
579config GPIO_ZEVIO
580 bool "LSI ZEVIO SoC memory mapped GPIOs"
581 depends on ARM && OF_GPIO
582 help
583 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
584
585config GPIO_ZYNQ
586 tristate "Xilinx Zynq GPIO support"
587 depends on ARCH_ZYNQ || ARCH_ZYNQMP
588 select GPIOLIB_IRQCHIP
589 help
590 Say yes here to support Xilinx Zynq GPIO controller.
591
592config GPIO_ZX
593 bool "ZTE ZX GPIO support"
594 depends on ARCH_ZX || COMPILE_TEST
595 select GPIOLIB_IRQCHIP
596 help
597 Say yes here to support the GPIO device on ZTE ZX SoCs.
598
599config GPIO_LOONGSON1
600 tristate "Loongson1 GPIO support"
601 depends on MACH_LOONGSON32
602 select GPIO_GENERIC
603 help
604 Say Y or M here to support GPIO on Loongson1 SoCs.
605
606endmenu
607
608menu "Port-mapped I/O GPIO drivers"
609 depends on X86 # Unconditional I/O space access
610
611config GPIO_104_DIO_48E
612 tristate "ACCES 104-DIO-48E GPIO support"
613 depends on PC104
614 select ISA_BUS_API
615 select GPIOLIB_IRQCHIP
616 help
617 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
618 104-DIO-24E). The base port addresses for the devices may be
619 configured via the base module parameter. The interrupt line numbers
620 for the devices may be configured via the irq module parameter.
621
622config GPIO_104_IDIO_16
623 tristate "ACCES 104-IDIO-16 GPIO support"
624 depends on PC104
625 select ISA_BUS_API
626 select GPIOLIB_IRQCHIP
627 help
628 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
629 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
630 base port addresses for the devices may be configured via the base
631 module parameter. The interrupt line numbers for the devices may be
632 configured via the irq module parameter.
633
634config GPIO_104_IDI_48
635 tristate "ACCES 104-IDI-48 GPIO support"
636 depends on PC104
637 select ISA_BUS_API
638 select GPIOLIB_IRQCHIP
639 help
640 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
641 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
642 the devices may be configured via the base module parameter. The
643 interrupt line numbers for the devices may be configured via the irq
644 module parameter.
645
646config GPIO_F7188X
647 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
648 help
649 This option enables support for GPIOs found on Fintek Super-I/O
650 chips F71869, F71869A, F71882FG, F71889F and F81866.
651
652 To compile this driver as a module, choose M here: the module will
653 be called f7188x-gpio.
654
655config GPIO_GPIO_MM
656 tristate "Diamond Systems GPIO-MM GPIO support"
657 depends on PC104
658 select ISA_BUS_API
659 help
660 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
661
662 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
663 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
664 support for these 48 channels of digital I/O.
665
666 The base port addresses for the devices may be configured via the base
667 array module parameter.
668
669config GPIO_IT87
670 tristate "IT87xx GPIO support"
671 help
672 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
673
674 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
675 supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
676
677 To compile this driver as a module, choose M here: the module will
678 be called gpio_it87
679
680config GPIO_SCH
681 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
682 depends on (X86 || COMPILE_TEST) && PCI
683 select MFD_CORE
684 select LPC_SCH
685 help
686 Say yes here to support GPIO interface on Intel Poulsbo SCH,
687 Intel Tunnel Creek processor, Intel Centerton processor or
688 Intel Quark X1000 SoC.
689
690 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
691 powered by the core power rail and are turned off during sleep
692 modes (S3 and higher). The remaining four GPIOs are powered by
693 the Intel SCH suspend power supply. These GPIOs remain
694 active during S3. The suspend powered GPIOs can be used to wake the
695 system from the Suspend-to-RAM state.
696
697 The Intel Tunnel Creek processor has 5 GPIOs powered by the
698 core power rail and 9 from suspend power supply.
699
700 The Intel Centerton processor has a total of 30 GPIO pins.
701 Twenty-one are powered by the core power rail and 9 from the
702 suspend power supply.
703
704 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
705 power well and 6 from the suspend power well.
706
707config GPIO_SCH311X
708 tristate "SMSC SCH311x SuperI/O GPIO"
709 help
710 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
711 SCH3116 "Super I/O" chipsets.
712
713 To compile this driver as a module, choose M here: the module will
714 be called gpio-sch311x.
715
716config GPIO_TS5500
717 tristate "TS-5500 DIO blocks and compatibles"
718 depends on TS5500 || COMPILE_TEST
719 help
720 This driver supports Digital I/O exposed by pin blocks found on some
721 Technologic Systems platforms. It includes, but is not limited to, 3
722 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
723 LCD port.
724
725config GPIO_WINBOND
726 tristate "Winbond Super I/O GPIO support"
727 select ISA_BUS_API
728 help
729 This option enables support for GPIOs found on Winbond Super I/O
730 chips.
731 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
732 supported.
733
734 You will need to provide a module parameter "gpios", or a
735 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
736 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
737
738 To compile this driver as a module, choose M here: the module will
739 be called gpio-winbond.
740
741config GPIO_WS16C48
742 tristate "WinSystems WS16C48 GPIO support"
743 select ISA_BUS_API
744 select GPIOLIB_IRQCHIP
745 help
746 Enables GPIO support for the WinSystems WS16C48. The base port
747 addresses for the devices may be configured via the base module
748 parameter. The interrupt line numbers for the devices may be
749 configured via the irq module parameter.
750
751endmenu
752
753menu "I2C GPIO expanders"
754 depends on I2C
755
756config GPIO_ADP5588
757 tristate "ADP5588 I2C GPIO expander"
758 help
759 This option enables support for 18 GPIOs found
760 on Analog Devices ADP5588 GPIO Expanders.
761
762config GPIO_ADP5588_IRQ
763 bool "Interrupt controller support for ADP5588"
764 depends on GPIO_ADP5588=y
765 help
766 Say yes here to enable the adp5588 to be used as an interrupt
767 controller. It requires the driver to be built in the kernel.
768
769config GPIO_ADNP
770 tristate "Avionic Design N-bit GPIO expander"
771 depends on OF_GPIO
772 select GPIOLIB_IRQCHIP
773 help
774 This option enables support for N GPIOs found on Avionic Design
775 I2C GPIO expanders. The register space will be extended by powers
776 of two, so the controller will need to accommodate for that. For
777 example: if a controller provides 48 pins, 6 registers will be
778 enough to represent all pins, but the driver will assume a
779 register layout for 64 pins (8 registers).
780
781config GPIO_MAX7300
782 tristate "Maxim MAX7300 GPIO expander"
783 select GPIO_MAX730X
784 help
785 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
786
787config GPIO_MAX732X
788 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
789 help
790 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
791 Port Expanders. Each IO port on these chips has a fixed role of
792 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
793 Input and Output (designed by 'P'). The combinations are listed
794 below:
795
796 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
797 max7322 (4I4O), max7323 (4P4O)
798
799 16 bits: max7324 (8I8O), max7325 (8P8O),
800 max7326 (4I12O), max7327 (4P12O)
801
802 Board setup code must specify the model to use, and the start
803 number for these GPIOs.
804
805config GPIO_MAX732X_IRQ
806 bool "Interrupt controller support for MAX732x"
807 depends on GPIO_MAX732X=y
808 select GPIOLIB_IRQCHIP
809 help
810 Say yes here to enable the max732x to be used as an interrupt
811 controller. It requires the driver to be built in the kernel.
812
813config GPIO_MC9S08DZ60
814 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
815 depends on I2C=y && MACH_MX35_3DS
816 help
817 Select this to enable the MC9S08DZ60 GPIO driver
818
819config GPIO_PCA953X
820 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
821 help
822 Say yes here to provide access to several register-oriented
823 SMBus I/O expanders, made mostly by NXP or TI. Compatible
824 models include:
825
826 4 bits: pca9536, pca9537
827
828 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
829 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
830
831 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
832 tca6416
833
834 24 bits: tca6424
835
836 40 bits: pca9505, pca9698
837
838config GPIO_PCA953X_IRQ
839 bool "Interrupt controller support for PCA953x"
840 depends on GPIO_PCA953X=y
841 select GPIOLIB_IRQCHIP
842 help
843 Say yes here to enable the pca953x to be used as an interrupt
844 controller. It requires the driver to be built in the kernel.
845
846config GPIO_PCF857X
847 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
848 select GPIOLIB_IRQCHIP
849 select IRQ_DOMAIN
850 help
851 Say yes here to provide access to most "quasi-bidirectional" I2C
852 GPIO expanders used for additional digital outputs or inputs.
853 Most of these parts are from NXP, though TI is a second source for
854 some of them. Compatible models include:
855
856 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
857 pca9670, pca9672, pca9674, pca9674a,
858 max7328, max7329
859
860 16 bits: pcf8575, pcf8575c, pca8575,
861 pca9671, pca9673, pca9675
862
863 Your board setup code will need to declare the expanders in
864 use, and assign numbers to the GPIOs they expose. Those GPIOs
865 can then be used from drivers and other kernel code, just like
866 other GPIOs, but only accessible from task contexts.
867
868 This driver provides an in-kernel interface to those GPIOs using
869 platform-neutral GPIO calls.
870
871config GPIO_TPIC2810
872 tristate "TPIC2810 8-Bit I2C GPO expander"
873 help
874 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
875
876 To compile this driver as a module, choose M here: the module will
877 be called gpio-tpic2810.
878
879config GPIO_TS4900
880 tristate "Technologic Systems FPGA I2C GPIO"
881 depends on SOC_IMX6 || COMPILE_TEST
882 select REGMAP_I2C
883 help
884 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
885 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
886
887endmenu
888
889menu "MFD GPIO expanders"
890
891config GPIO_ADP5520
892 tristate "GPIO Support for ADP5520 PMIC"
893 depends on PMIC_ADP5520
894 help
895 This option enables support for on-chip GPIO found
896 on Analog Devices ADP5520 PMICs.
897
898config GPIO_ALTERA_A10SR
899 tristate "Altera Arria10 System Resource GPIO"
900 depends on MFD_ALTERA_A10SR
901 help
902 Driver for Arria10 Development Kit GPIO expansion which
903 includes reads of pushbuttons and DIP switches as well
904 as writes to LEDs.
905
906config GPIO_ARIZONA
907 tristate "Wolfson Microelectronics Arizona class devices"
908 depends on MFD_ARIZONA
909 help
910 Support for GPIOs on Wolfson Arizona class devices.
911
912config GPIO_BD9571MWV
913 tristate "ROHM BD9571 GPIO support"
914 depends on MFD_BD9571MWV
915 help
916 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
917 available on the ROHM PMIC in total, both of which can also
918 generate interrupts.
919
920 This driver can also be built as a module. If so, the module
921 will be called gpio-bd9571mwv.
922
923config GPIO_CRYSTAL_COVE
924 tristate "GPIO support for Crystal Cove PMIC"
925 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
926 select GPIOLIB_IRQCHIP
927 help
928 Support for GPIO pins on Crystal Cove PMIC.
929
930 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
931 inside.
932
933 This driver can also be built as a module. If so, the module will be
934 called gpio-crystalcove.
935
936config GPIO_CS5535
937 tristate "AMD CS5535/CS5536 GPIO support"
938 depends on X86 || MIPS || COMPILE_TEST
939 depends on MFD_CS5535
940 help
941 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
942 can be used for quite a number of things. The CS5535/6 is found on
943 AMD Geode and Lemote Yeeloong devices.
944
945 If unsure, say N.
946
947config GPIO_DA9052
948 tristate "Dialog DA9052 GPIO"
949 depends on PMIC_DA9052
950 help
951 Say yes here to enable the GPIO driver for the DA9052 chip.
952
953config GPIO_DA9055
954 tristate "Dialog Semiconductor DA9055 GPIO"
955 depends on MFD_DA9055
956 help
957 Say yes here to enable the GPIO driver for the DA9055 chip.
958
959 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
960 be controller by this driver.
961
962 If driver is built as a module it will be called gpio-da9055.
963
964config GPIO_DLN2
965 tristate "Diolan DLN2 GPIO support"
966 depends on MFD_DLN2
967 select GPIOLIB_IRQCHIP
968
969 help
970 Select this option to enable GPIO driver for the Diolan DLN2
971 board.
972
973 This driver can also be built as a module. If so, the module
974 will be called gpio-dln2.
975
976config HTC_EGPIO
977 bool "HTC EGPIO support"
978 depends on GPIOLIB && ARM
979 help
980 This driver supports the CPLD egpio chip present on
981 several HTC phones. It provides basic support for input
982 pins, output pins, and irqs.
983
984config GPIO_JANZ_TTL
985 tristate "Janz VMOD-TTL Digital IO Module"
986 depends on MFD_JANZ_CMODIO
987 help
988 This enables support for the Janz VMOD-TTL Digital IO module.
989 This driver provides support for driving the pins in output
990 mode only. Input mode is not supported.
991
992config GPIO_KEMPLD
993 tristate "Kontron ETX / COMexpress GPIO"
994 depends on MFD_KEMPLD
995 help
996 This enables support for the PLD GPIO interface on some Kontron ETX
997 and COMexpress (ETXexpress) modules.
998
999 This driver can also be built as a module. If so, the module will be
1000 called gpio-kempld.
1001
1002config GPIO_LP3943
1003 tristate "TI/National Semiconductor LP3943 GPIO expander"
1004 depends on MFD_LP3943
1005 help
1006 GPIO driver for LP3943 MFD.
1007 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1008 Open drain outputs are required for this usage.
1009
1010config GPIO_LP873X
1011 tristate "TI LP873X GPO"
1012 depends on MFD_TI_LP873X
1013 help
1014 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1015 on LP873X PMICs.
1016
1017 This driver can also be built as a module. If so, the module will be
1018 called gpio-lp873x.
1019
1020config GPIO_LP87565
1021 tristate "TI LP87565 GPIO"
1022 depends on MFD_TI_LP87565
1023 help
1024 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1025 on LP87565 PMICs.
1026
1027 This driver can also be built as a module. If so, the module will be
1028 called gpio-lp87565.
1029
1030config GPIO_MAX77620
1031 tristate "GPIO support for PMIC MAX77620 and MAX20024"
1032 depends on MFD_MAX77620
1033 help
1034 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1035 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1036 driver also provides interrupt support for each of the gpios.
1037 Say yes here to enable the max77620 to be used as gpio controller.
1038
1039config GPIO_MSIC
1040 bool "Intel MSIC mixed signal gpio support"
1041 depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
1042 help
1043 Enable support for GPIO on intel MSIC controllers found in
1044 intel MID devices
1045
1046config GPIO_PALMAS
1047 bool "TI PALMAS series PMICs GPIO"
1048 depends on MFD_PALMAS
1049 help
1050 Select this option to enable GPIO driver for the TI PALMAS
1051 series chip family.
1052
1053config GPIO_RC5T583
1054 bool "RICOH RC5T583 GPIO"
1055 depends on MFD_RC5T583
1056 help
1057 Select this option to enable GPIO driver for the Ricoh RC5T583
1058 chip family.
1059 This driver provides the support for driving/reading the gpio pins
1060 of RC5T583 device through standard gpio library.
1061
1062config GPIO_STMPE
1063 bool "STMPE GPIOs"
1064 depends on MFD_STMPE
1065 depends on OF_GPIO
1066 select GPIOLIB_IRQCHIP
1067 help
1068 This enables support for the GPIOs found on the STMPE I/O
1069 Expanders.
1070
1071config GPIO_TC3589X
1072 bool "TC3589X GPIOs"
1073 depends on MFD_TC3589X
1074 depends on OF_GPIO
1075 select GPIOLIB_IRQCHIP
1076 help
1077 This enables support for the GPIOs found on the TC3589X
1078 I/O Expander.
1079
1080config GPIO_TIMBERDALE
1081 bool "Support for timberdale GPIO IP"
1082 depends on MFD_TIMBERDALE
1083 ---help---
1084 Add support for the GPIO IP in the timberdale FPGA.
1085
1086config GPIO_TPS65086
1087 tristate "TI TPS65086 GPO"
1088 depends on MFD_TPS65086
1089 help
1090 This driver supports the GPO on TI TPS65086x PMICs.
1091
1092config GPIO_TPS65218
1093 tristate "TPS65218 GPIO"
1094 depends on MFD_TPS65218
1095 help
1096 Select this option to enable GPIO driver for the TPS65218
1097 chip family.
1098
1099config GPIO_TPS6586X
1100 bool "TPS6586X GPIO"
1101 depends on MFD_TPS6586X
1102 help
1103 Select this option to enable GPIO driver for the TPS6586X
1104 chip family.
1105
1106config GPIO_TPS65910
1107 bool "TPS65910 GPIO"
1108 depends on MFD_TPS65910
1109 help
1110 Select this option to enable GPIO driver for the TPS65910
1111 chip family.
1112
1113config GPIO_TPS65912
1114 tristate "TI TPS65912 GPIO"
1115 depends on MFD_TPS65912
1116 help
1117 This driver supports TPS65912 gpio chip
1118
1119config GPIO_TPS68470
1120 bool "TPS68470 GPIO"
1121 depends on MFD_TPS68470
1122 help
1123 Select this option to enable GPIO driver for the TPS68470
1124 chip family.
1125 There are 7 GPIOs and few sensor related GPIOs supported
1126 by the TPS68470. While the 7 GPIOs can be configured as
1127 input or output as appropriate, the sensor related GPIOs
1128 are "output only" GPIOs.
1129
1130 This driver config is bool, as the GPIO functionality
1131 of the TPS68470 must be available before dependent
1132 drivers are loaded.
1133
1134config GPIO_TWL4030
1135 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1136 depends on TWL4030_CORE
1137 help
1138 Say yes here to access the GPIO signals of various multi-function
1139 power management chips from Texas Instruments.
1140
1141config GPIO_TWL6040
1142 tristate "TWL6040 GPO"
1143 depends on TWL6040_CORE
1144 help
1145 Say yes here to access the GPO signals of twl6040
1146 audio chip from Texas Instruments.
1147
1148config GPIO_UCB1400
1149 tristate "Philips UCB1400 GPIO"
1150 depends on UCB1400_CORE
1151 help
1152 This enables support for the Philips UCB1400 GPIO pins.
1153 The UCB1400 is an AC97 audio codec.
1154
1155config GPIO_WHISKEY_COVE
1156 tristate "GPIO support for Whiskey Cove PMIC"
1157 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1158 select GPIOLIB_IRQCHIP
1159 help
1160 Support for GPIO pins on Whiskey Cove PMIC.
1161
1162 Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1163 inside.
1164
1165 This driver can also be built as a module. If so, the module will be
1166 called gpio-wcove.
1167
1168config GPIO_WM831X
1169 tristate "WM831x GPIOs"
1170 depends on MFD_WM831X
1171 help
1172 Say yes here to access the GPIO signals of WM831x power management
1173 chips from Wolfson Microelectronics.
1174
1175config GPIO_WM8350
1176 tristate "WM8350 GPIOs"
1177 depends on MFD_WM8350
1178 help
1179 Say yes here to access the GPIO signals of WM8350 power management
1180 chips from Wolfson Microelectronics.
1181
1182config GPIO_WM8994
1183 tristate "WM8994 GPIOs"
1184 depends on MFD_WM8994
1185 help
1186 Say yes here to access the GPIO signals of WM8994 audio hub
1187 CODECs from Wolfson Microelectronics.
1188
1189endmenu
1190
1191menu "PCI GPIO expanders"
1192 depends on PCI
1193
1194config GPIO_AMD8111
1195 tristate "AMD 8111 GPIO driver"
1196 depends on X86 || COMPILE_TEST
1197 help
1198 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1199
1200 Note, that usually system firmware/ACPI handles GPIO pins on their
1201 own and users might easily break their systems with uncarefull usage
1202 of this driver!
1203
1204 If unsure, say N
1205
1206config GPIO_BT8XX
1207 tristate "BT8XX GPIO abuser"
1208 depends on VIDEO_BT848=n
1209 help
1210 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1211 as a cheap PCI GPIO card.
1212
1213 This chip can be found on Miro, Hauppauge and STB TV-cards.
1214
1215 The card needs to be physically altered for using it as a
1216 GPIO card. For more information on how to build a GPIO card
1217 from a BT8xx TV card, see the documentation file at
1218 Documentation/bt8xxgpio.txt
1219
1220 If unsure, say N.
1221
1222config GPIO_INTEL_MID
1223 bool "Intel MID GPIO support"
1224 depends on X86_INTEL_MID
1225 select GPIOLIB_IRQCHIP
1226 help
1227 Say Y here to support Intel MID GPIO.
1228
1229config GPIO_MERRIFIELD
1230 tristate "Intel Merrifield GPIO support"
1231 depends on X86_INTEL_MID
1232 select GPIOLIB_IRQCHIP
1233 help
1234 Say Y here to support Intel Merrifield GPIO.
1235
1236config GPIO_ML_IOH
1237 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1238 depends on X86 || COMPILE_TEST
1239 select GENERIC_IRQ_CHIP
1240 help
1241 ML7213 is companion chip for Intel Atom E6xx series.
1242 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1243 Hub) which is for IVI(In-Vehicle Infotainment) use.
1244 This driver can access the IOH's GPIO device.
1245
1246config GPIO_PCH
1247 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1248 depends on X86_32 || MIPS || COMPILE_TEST
1249 select GENERIC_IRQ_CHIP
1250 help
1251 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1252 which is an IOH(Input/Output Hub) for x86 embedded processor.
1253 This driver can access PCH GPIO device.
1254
1255 This driver also can be used for LAPIS Semiconductor IOH(Input/
1256 Output Hub), ML7223 and ML7831.
1257 ML7223 IOH is for MP(Media Phone) use.
1258 ML7831 IOH is for general purpose use.
1259 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1260 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1261
1262config GPIO_PCI_IDIO_16
1263 tristate "ACCES PCI-IDIO-16 GPIO support"
1264 select GPIOLIB_IRQCHIP
1265 help
1266 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1267 generated when any of the inputs change state (low to high or high to
1268 low). Input filter control is not supported by this driver, and the
1269 input filters are deactivated by this driver.
1270
1271config GPIO_PCIE_IDIO_24
1272 tristate "ACCES PCIe-IDIO-24 GPIO support"
1273 select GPIOLIB_IRQCHIP
1274 help
1275 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1276 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1277 when any of the inputs change state (low to high or high to low).
1278 Input filter control is not supported by this driver, and the input
1279 filters are deactivated by this driver.
1280
1281config GPIO_RDC321X
1282 tristate "RDC R-321x GPIO support"
1283 select MFD_CORE
1284 select MFD_RDC321X
1285 help
1286 Support for the RDC R321x SoC GPIOs over southbridge
1287 PCI configuration space.
1288
1289config GPIO_SODAVILLE
1290 bool "Intel Sodaville GPIO support"
1291 depends on X86 && OF
1292 select GPIO_GENERIC
1293 select GENERIC_IRQ_CHIP
1294 help
1295 Say Y here to support Intel Sodaville GPIO.
1296
1297endmenu
1298
1299menu "SPI GPIO expanders"
1300 depends on SPI_MASTER
1301
1302config GPIO_74X164
1303 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1304 depends on OF_GPIO
1305 help
1306 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1307 shift registers. This driver can be used to provide access
1308 to more gpio outputs.
1309
1310config GPIO_MAX3191X
1311 tristate "Maxim MAX3191x industrial serializer"
1312 select CRC8
1313 help
1314 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1315 MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1316 chip to make 8 digital 24V inputs available via SPI. Supports
1317 CRC checksums to guard against electromagnetic interference,
1318 as well as undervoltage and overtemperature detection.
1319
1320config GPIO_MAX7301
1321 tristate "Maxim MAX7301 GPIO expander"
1322 select GPIO_MAX730X
1323 help
1324 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1325
1326config GPIO_MC33880
1327 tristate "Freescale MC33880 high-side/low-side switch"
1328 help
1329 SPI driver for Freescale MC33880 high-side/low-side switch.
1330 This provides GPIO interface supporting inputs and outputs.
1331
1332config GPIO_PISOSR
1333 tristate "Generic parallel-in/serial-out shift register"
1334 help
1335 GPIO driver for SPI compatible parallel-in/serial-out shift
1336 registers. These are input only devices.
1337
1338config GPIO_XRA1403
1339 tristate "EXAR XRA1403 16-bit GPIO expander"
1340 select REGMAP_SPI
1341 help
1342 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1343
1344endmenu
1345
1346menu "USB GPIO expanders"
1347 depends on USB
1348
1349config GPIO_VIPERBOARD
1350 tristate "Viperboard GPIO a & b support"
1351 depends on MFD_VIPERBOARD
1352 help
1353 Say yes here to access the GPIO signals of Nano River
1354 Technologies Viperboard. There are two GPIO chips on the
1355 board: gpioa and gpiob.
1356 See viperboard API specification and Nano
1357 River Tech's viperboard.h for detailed meaning
1358 of the module parameters.
1359
1360endmenu
1361
1362endif