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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_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