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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
13config ARCH_WANT_OPTIONAL_GPIOLIB
14 bool
15 help
16 Select this config option from the architecture Kconfig, if
17 it is possible to use gpiolib on the architecture, but let the
18 user decide whether to actually build it or not.
19 Select this instead of ARCH_REQUIRE_GPIOLIB, if your architecture does
20 not depend on GPIOs being available, but rather let the user
21 decide whether he needs it or not.
22
23config ARCH_REQUIRE_GPIOLIB
24 bool
25 select GPIOLIB
26 help
27 Platforms select gpiolib if they use this infrastructure
28 for all their GPIOs, usually starting with ones integrated
29 into SOC processors.
30 Selecting this from the architecture code will cause the gpiolib
31 code to always get built in.
32
33
34menuconfig GPIOLIB
35 bool "GPIO Support"
36 depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB
37 help
38 This enables GPIO support through the generic GPIO library.
39 You only need to enable this, if you also want to enable
40 one or more of the GPIO drivers below.
41
42 If unsure, say N.
43
44if GPIOLIB
45
46config GPIO_DEVRES
47 def_bool y
48 depends on HAS_IOMEM
49
50config OF_GPIO
51 def_bool y
52 depends on OF
53
54config GPIO_ACPI
55 def_bool y
56 depends on ACPI
57
58config GPIOLIB_IRQCHIP
59 bool
60
61config DEBUG_GPIO
62 bool "Debug GPIO calls"
63 depends on DEBUG_KERNEL
64 help
65 Say Y here to add some extra checks and diagnostics to GPIO calls.
66 These checks help ensure that GPIOs have been properly initialized
67 before they are used, and that sleeping calls are not made from
68 non-sleeping contexts. They can make bitbanged serial protocols
69 slower. The diagnostics help catch the type of setup errors
70 that are most common when setting up new platforms or boards.
71
72config GPIO_SYSFS
73 bool "/sys/class/gpio/... (sysfs interface)"
74 depends on SYSFS
75 help
76 Say Y here to add a sysfs interface for GPIOs.
77
78 This is mostly useful to work around omissions in a system's
79 kernel support. Those are common in custom and semicustom
80 hardware assembled using standard kernels with a minimum of
81 custom patches. In those cases, userspace code may import
82 a given GPIO from the kernel, if no kernel driver requested it.
83
84 Kernel drivers may also request that a particular GPIO be
85 exported to userspace; this can be useful when debugging.
86
87config GPIO_GENERIC
88 tristate
89
90# put drivers in the right section, in alphabetical order
91
92config GPIO_DA9052
93 tristate "Dialog DA9052 GPIO"
94 depends on PMIC_DA9052
95 help
96 Say yes here to enable the GPIO driver for the DA9052 chip.
97
98config GPIO_DA9055
99 tristate "Dialog Semiconductor DA9055 GPIO"
100 depends on MFD_DA9055
101 help
102 Say yes here to enable the GPIO driver for the DA9055 chip.
103
104 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
105 be controller by this driver.
106
107 If driver is built as a module it will be called gpio-da9055.
108
109config GPIO_MAX730X
110 tristate
111
112comment "Memory mapped GPIO drivers:"
113
114config GPIO_CLPS711X
115 tristate "CLPS711X GPIO support"
116 depends on ARCH_CLPS711X || COMPILE_TEST
117 select GPIO_GENERIC
118 help
119 Say yes here to support GPIO on CLPS711X SoCs.
120
121config GPIO_DAVINCI
122 bool "TI Davinci/Keystone GPIO support"
123 default y if ARCH_DAVINCI
124 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
125 help
126 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
127
128config GPIO_GENERIC_PLATFORM
129 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
130 select GPIO_GENERIC
131 help
132 Say yes here to support basic platform_device memory-mapped GPIO controllers.
133
134config GPIO_DWAPB
135 tristate "Synopsys DesignWare APB GPIO driver"
136 select GPIO_GENERIC
137 select GENERIC_IRQ_CHIP
138 depends on OF_GPIO
139 help
140 Say Y or M here to build support for the Synopsys DesignWare APB
141 GPIO block.
142
143config GPIO_IT8761E
144 tristate "IT8761E GPIO support"
145 depends on X86 # unconditional access to IO space.
146 help
147 Say yes here to support GPIO functionality of IT8761E super I/O chip.
148
149config GPIO_EM
150 tristate "Emma Mobile GPIO"
151 depends on ARM && OF_GPIO
152 help
153 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
154
155config GPIO_EP93XX
156 def_bool y
157 depends on ARCH_EP93XX
158 select GPIO_GENERIC
159
160config GPIO_ZEVIO
161 bool "LSI ZEVIO SoC memory mapped GPIOs"
162 depends on ARM && OF_GPIO
163 help
164 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
165
166config GPIO_MM_LANTIQ
167 bool "Lantiq Memory mapped GPIOs"
168 depends on LANTIQ && SOC_XWAY
169 help
170 This enables support for memory mapped GPIOs on the External Bus Unit
171 (EBU) found on Lantiq SoCs. The gpios are output only as they are
172 created by attaching a 16bit latch to the bus.
173
174config GPIO_F7188X
175 tristate "F71882FG and F71889F GPIO support"
176 depends on X86
177 help
178 This option enables support for GPIOs found on Fintek Super-I/O
179 chips F71882FG and F71889F.
180
181 To compile this driver as a module, choose M here: the module will
182 be called f7188x-gpio.
183
184config GPIO_MOXART
185 bool "MOXART GPIO support"
186 depends on ARCH_MOXART
187 help
188 Select this option to enable GPIO driver for
189 MOXA ART SoC devices.
190
191config GPIO_MPC5200
192 def_bool y
193 depends on PPC_MPC52xx
194
195config GPIO_MPC8XXX
196 bool "MPC512x/MPC8xxx GPIO support"
197 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
198 FSL_SOC_BOOKE || PPC_86xx
199 help
200 Say Y here if you're going to use hardware that connects to the
201 MPC512x/831x/834x/837x/8572/8610 GPIOs.
202
203config GPIO_MSM_V1
204 tristate "Qualcomm MSM GPIO v1"
205 depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50)
206 help
207 Say yes here to support the GPIO interface on ARM v6 based
208 Qualcomm MSM chips. Most of the pins on the MSM can be
209 selected for GPIO, and are controlled by this driver.
210
211config GPIO_MSM_V2
212 tristate "Qualcomm MSM GPIO v2"
213 depends on GPIOLIB && OF && ARCH_QCOM
214 help
215 Say yes here to support the GPIO interface on ARM v7 based
216 Qualcomm MSM chips. Most of the pins on the MSM can be
217 selected for GPIO, and are controlled by this driver.
218
219config GPIO_MVEBU
220 def_bool y
221 depends on PLAT_ORION
222 depends on OF
223 select GPIO_GENERIC
224 select GENERIC_IRQ_CHIP
225
226config GPIO_MXC
227 def_bool y
228 depends on ARCH_MXC
229 select GPIO_GENERIC
230 select GENERIC_IRQ_CHIP
231
232config GPIO_MXS
233 def_bool y
234 depends on ARCH_MXS
235 select GPIO_GENERIC
236 select GENERIC_IRQ_CHIP
237
238config GPIO_OCTEON
239 tristate "Cavium OCTEON GPIO"
240 depends on GPIOLIB && CAVIUM_OCTEON_SOC
241 default y
242 help
243 Say yes here to support the on-chip GPIO lines on the OCTEON
244 family of SOCs.
245
246config GPIO_PL061
247 bool "PrimeCell PL061 GPIO support"
248 depends on ARM_AMBA
249 select IRQ_DOMAIN
250 select GPIOLIB_IRQCHIP
251 help
252 Say yes here to support the PrimeCell PL061 GPIO device
253
254config GPIO_PXA
255 bool "PXA GPIO support"
256 depends on ARCH_PXA || ARCH_MMP
257 help
258 Say yes here to support the PXA GPIO device
259
260config GPIO_RCAR
261 tristate "Renesas R-Car GPIO"
262 depends on ARM
263 help
264 Say yes here to support GPIO on Renesas R-Car SoCs.
265
266config GPIO_SAMSUNG
267 bool
268 depends on PLAT_SAMSUNG
269 help
270 Legacy GPIO support. Use only for platforms without support for
271 pinctrl.
272
273config GPIO_SCH311X
274 tristate "SMSC SCH311x SuperI/O GPIO"
275 help
276 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
277 SCH3116 "Super I/O" chipsets.
278
279 To compile this driver as a module, choose M here: the module will
280 be called gpio-sch311x.
281
282config GPIO_SPEAR_SPICS
283 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
284 depends on PLAT_SPEAR
285 select GENERIC_IRQ_CHIP
286 help
287 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
288
289config GPIO_STA2X11
290 bool "STA2x11/ConneXt GPIO support"
291 depends on MFD_STA2X11
292 select GENERIC_IRQ_CHIP
293 help
294 Say yes here to support the STA2x11/ConneXt GPIO device.
295 The GPIO module has 128 GPIO pins with alternate functions.
296
297config GPIO_SYSCON
298 tristate "GPIO based on SYSCON"
299 depends on MFD_SYSCON && OF
300 help
301 Say yes here to support GPIO functionality though SYSCON driver.
302
303config GPIO_TS5500
304 tristate "TS-5500 DIO blocks and compatibles"
305 depends on TS5500 || COMPILE_TEST
306 help
307 This driver supports Digital I/O exposed by pin blocks found on some
308 Technologic Systems platforms. It includes, but is not limited to, 3
309 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
310 LCD port.
311
312config GPIO_TZ1090
313 bool "Toumaz Xenif TZ1090 GPIO support"
314 depends on SOC_TZ1090
315 select GENERIC_IRQ_CHIP
316 default y
317 help
318 Say yes here to support Toumaz Xenif TZ1090 GPIOs.
319
320config GPIO_TZ1090_PDC
321 bool "Toumaz Xenif TZ1090 PDC GPIO support"
322 depends on SOC_TZ1090
323 default y
324 help
325 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
326
327config GPIO_XILINX
328 bool "Xilinx GPIO support"
329 depends on PPC_OF || MICROBLAZE || ARCH_ZYNQ
330 help
331 Say yes here to support the Xilinx FPGA GPIO device
332
333config GPIO_XTENSA
334 bool "Xtensa GPIO32 support"
335 depends on XTENSA
336 depends on HAVE_XTENSA_GPIO32
337 depends on !SMP
338 help
339 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
340 and EXPSTATE (output) ports
341
342config GPIO_VR41XX
343 tristate "NEC VR4100 series General-purpose I/O Uint support"
344 depends on CPU_VR41XX
345 help
346 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
347
348config GPIO_SCH
349 tristate "Intel SCH/TunnelCreek/Centerton GPIO"
350 depends on PCI && X86
351 select MFD_CORE
352 select LPC_SCH
353 help
354 Say yes here to support GPIO interface on Intel Poulsbo SCH,
355 Intel Tunnel Creek processor or Intel Centerton processor.
356 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
357 powered by the core power rail and are turned off during sleep
358 modes (S3 and higher). The remaining four GPIOs are powered by
359 the Intel SCH suspend power supply. These GPIOs remain
360 active during S3. The suspend powered GPIOs can be used to wake the
361 system from the Suspend-to-RAM state.
362 The Intel Tunnel Creek processor has 5 GPIOs powered by the
363 core power rail and 9 from suspend power supply.
364 The Intel Centerton processor has a total of 30 GPIO pins.
365 Twenty-one are powered by the core power rail and 9 from the
366 suspend power supply.
367
368config GPIO_ICH
369 tristate "Intel ICH GPIO"
370 depends on PCI && X86
371 select MFD_CORE
372 select LPC_ICH
373 help
374 Say yes here to support the GPIO functionality of a number of Intel
375 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
376 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
377 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
378
379 If unsure, say N.
380
381config GPIO_IOP
382 tristate "Intel IOP GPIO"
383 depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
384 help
385 Say yes here to support the GPIO functionality of a number of Intel
386 IOP32X or IOP33X.
387
388 If unsure, say N.
389
390config GPIO_VX855
391 tristate "VIA VX855/VX875 GPIO"
392 depends on PCI
393 select MFD_CORE
394 select MFD_VX855
395 help
396 Support access to the VX855/VX875 GPIO lines through the gpio library.
397
398 This driver provides common support for accessing the device,
399 additional drivers must be enabled in order to use the
400 functionality of the device.
401
402config GPIO_GE_FPGA
403 bool "GE FPGA based GPIO"
404 depends on GE_FPGA
405 help
406 Support for common GPIO functionality provided on some GE Single Board
407 Computers.
408
409 This driver provides basic support (configure as input or output, read
410 and write pin state) for GPIO implemented in a number of GE single
411 board computers.
412
413config GPIO_LYNXPOINT
414 tristate "Intel Lynxpoint GPIO support"
415 depends on ACPI && X86
416 select IRQ_DOMAIN
417 help
418 driver for GPIO functionality on Intel Lynxpoint PCH chipset
419 Requires ACPI device enumeration code to set up a platform device.
420
421config GPIO_GRGPIO
422 tristate "Aeroflex Gaisler GRGPIO support"
423 depends on OF
424 select GPIO_GENERIC
425 select IRQ_DOMAIN
426 help
427 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
428 VHDL IP core library.
429
430config GPIO_TB10X
431 bool
432 select GENERIC_IRQ_CHIP
433 select OF_GPIO
434
435comment "I2C GPIO expanders:"
436
437config GPIO_ARIZONA
438 tristate "Wolfson Microelectronics Arizona class devices"
439 depends on MFD_ARIZONA
440 help
441 Support for GPIOs on Wolfson Arizona class devices.
442
443config GPIO_LP3943
444 tristate "TI/National Semiconductor LP3943 GPIO expander"
445 depends on MFD_LP3943
446 help
447 GPIO driver for LP3943 MFD.
448 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
449 Open drain outputs are required for this usage.
450
451config GPIO_MAX7300
452 tristate "Maxim MAX7300 GPIO expander"
453 depends on I2C
454 select GPIO_MAX730X
455 help
456 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
457
458config GPIO_MAX732X
459 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
460 depends on I2C
461 help
462 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
463 Port Expanders. Each IO port on these chips has a fixed role of
464 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
465 Input and Output (designed by 'P'). The combinations are listed
466 below:
467
468 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
469 max7322 (4I4O), max7323 (4P4O)
470
471 16 bits: max7324 (8I8O), max7325 (8P8O),
472 max7326 (4I12O), max7327 (4P12O)
473
474 Board setup code must specify the model to use, and the start
475 number for these GPIOs.
476
477config GPIO_MAX732X_IRQ
478 bool "Interrupt controller support for MAX732x"
479 depends on GPIO_MAX732X=y
480 help
481 Say yes here to enable the max732x to be used as an interrupt
482 controller. It requires the driver to be built in the kernel.
483
484config GPIO_MC9S08DZ60
485 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
486 depends on I2C=y && MACH_MX35_3DS
487 help
488 Select this to enable the MC9S08DZ60 GPIO driver
489
490config GPIO_PCA953X
491 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
492 depends on I2C
493 help
494 Say yes here to provide access to several register-oriented
495 SMBus I/O expanders, made mostly by NXP or TI. Compatible
496 models include:
497
498 4 bits: pca9536, pca9537
499
500 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
501 pca9556, pca9557, pca9574, tca6408, xra1202
502
503 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
504 tca6416
505
506 24 bits: tca6424
507
508 40 bits: pca9505, pca9698
509
510config GPIO_PCA953X_IRQ
511 bool "Interrupt controller support for PCA953x"
512 depends on GPIO_PCA953X=y
513 help
514 Say yes here to enable the pca953x to be used as an interrupt
515 controller. It requires the driver to be built in the kernel.
516
517config GPIO_PCF857X
518 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
519 depends on I2C
520 select IRQ_DOMAIN
521 help
522 Say yes here to provide access to most "quasi-bidirectional" I2C
523 GPIO expanders used for additional digital outputs or inputs.
524 Most of these parts are from NXP, though TI is a second source for
525 some of them. Compatible models include:
526
527 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
528 pca9670, pca9672, pca9674, pca9674a,
529 max7328, max7329
530
531 16 bits: pcf8575, pcf8575c, pca8575,
532 pca9671, pca9673, pca9675
533
534 Your board setup code will need to declare the expanders in
535 use, and assign numbers to the GPIOs they expose. Those GPIOs
536 can then be used from drivers and other kernel code, just like
537 other GPIOs, but only accessible from task contexts.
538
539 This driver provides an in-kernel interface to those GPIOs using
540 platform-neutral GPIO calls.
541
542config GPIO_RC5T583
543 bool "RICOH RC5T583 GPIO"
544 depends on MFD_RC5T583
545 help
546 Select this option to enable GPIO driver for the Ricoh RC5T583
547 chip family.
548 This driver provides the support for driving/reading the gpio pins
549 of RC5T583 device through standard gpio library.
550
551config GPIO_SX150X
552 bool "Semtech SX150x I2C GPIO expander"
553 depends on I2C=y
554 default n
555 help
556 Say yes here to provide support for Semtech SX150-series I2C
557 GPIO expanders. Compatible models include:
558
559 8 bits: sx1508q
560 16 bits: sx1509q
561
562config GPIO_STMPE
563 bool "STMPE GPIOs"
564 depends on MFD_STMPE
565 help
566 This enables support for the GPIOs found on the STMPE I/O
567 Expanders.
568
569config GPIO_STP_XWAY
570 bool "XWAY STP GPIOs"
571 depends on SOC_XWAY
572 help
573 This enables support for the Serial To Parallel (STP) unit found on
574 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
575 that can be up to 24 bit. This peripheral is aimed at driving leds.
576 Some of the gpios/leds can be auto updated by the soc with dsl and
577 phy status.
578
579config GPIO_TC3589X
580 bool "TC3589X GPIOs"
581 depends on MFD_TC3589X
582 help
583 This enables support for the GPIOs found on the TC3589X
584 I/O Expander.
585
586config GPIO_TPS65912
587 tristate "TI TPS65912 GPIO"
588 depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
589 help
590 This driver supports TPS65912 gpio chip
591
592config GPIO_TWL4030
593 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
594 depends on TWL4030_CORE
595 help
596 Say yes here to access the GPIO signals of various multi-function
597 power management chips from Texas Instruments.
598
599config GPIO_TWL6040
600 tristate "TWL6040 GPO"
601 depends on TWL6040_CORE
602 help
603 Say yes here to access the GPO signals of twl6040
604 audio chip from Texas Instruments.
605
606config GPIO_WM831X
607 tristate "WM831x GPIOs"
608 depends on MFD_WM831X
609 help
610 Say yes here to access the GPIO signals of WM831x power management
611 chips from Wolfson Microelectronics.
612
613config GPIO_WM8350
614 tristate "WM8350 GPIOs"
615 depends on MFD_WM8350
616 help
617 Say yes here to access the GPIO signals of WM8350 power management
618 chips from Wolfson Microelectronics.
619
620config GPIO_WM8994
621 tristate "WM8994 GPIOs"
622 depends on MFD_WM8994
623 help
624 Say yes here to access the GPIO signals of WM8994 audio hub
625 CODECs from Wolfson Microelectronics.
626
627config GPIO_ADP5520
628 tristate "GPIO Support for ADP5520 PMIC"
629 depends on PMIC_ADP5520
630 help
631 This option enables support for on-chip GPIO found
632 on Analog Devices ADP5520 PMICs.
633
634config GPIO_ADP5588
635 tristate "ADP5588 I2C GPIO expander"
636 depends on I2C
637 help
638 This option enables support for 18 GPIOs found
639 on Analog Devices ADP5588 GPIO Expanders.
640
641config GPIO_ADP5588_IRQ
642 bool "Interrupt controller support for ADP5588"
643 depends on GPIO_ADP5588=y
644 help
645 Say yes here to enable the adp5588 to be used as an interrupt
646 controller. It requires the driver to be built in the kernel.
647
648config GPIO_ADNP
649 tristate "Avionic Design N-bit GPIO expander"
650 depends on I2C && OF_GPIO
651 help
652 This option enables support for N GPIOs found on Avionic Design
653 I2C GPIO expanders. The register space will be extended by powers
654 of two, so the controller will need to accommodate for that. For
655 example: if a controller provides 48 pins, 6 registers will be
656 enough to represent all pins, but the driver will assume a
657 register layout for 64 pins (8 registers).
658
659comment "PCI GPIO expanders:"
660
661config GPIO_CS5535
662 tristate "AMD CS5535/CS5536 GPIO support"
663 depends on MFD_CS5535
664 help
665 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
666 can be used for quite a number of things. The CS5535/6 is found on
667 AMD Geode and Lemote Yeeloong devices.
668
669 If unsure, say N.
670
671config GPIO_BT8XX
672 tristate "BT8XX GPIO abuser"
673 depends on PCI && VIDEO_BT848=n
674 help
675 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
676 as a cheap PCI GPIO card.
677
678 This chip can be found on Miro, Hauppauge and STB TV-cards.
679
680 The card needs to be physically altered for using it as a
681 GPIO card. For more information on how to build a GPIO card
682 from a BT8xx TV card, see the documentation file at
683 Documentation/bt8xxgpio.txt
684
685 If unsure, say N.
686
687config GPIO_AMD8111
688 tristate "AMD 8111 GPIO driver"
689 depends on PCI
690 help
691 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
692
693 Note, that usually system firmware/ACPI handles GPIO pins on their
694 own and users might easily break their systems with uncarefull usage
695 of this driver!
696
697 If unsure, say N
698
699config GPIO_INTEL_MID
700 bool "Intel Mid GPIO support"
701 depends on PCI && X86
702 select IRQ_DOMAIN
703 help
704 Say Y here to support Intel Mid GPIO.
705
706config GPIO_PCH
707 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
708 depends on PCI && X86
709 select GENERIC_IRQ_CHIP
710 help
711 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
712 which is an IOH(Input/Output Hub) for x86 embedded processor.
713 This driver can access PCH GPIO device.
714
715 This driver also can be used for LAPIS Semiconductor IOH(Input/
716 Output Hub), ML7223 and ML7831.
717 ML7223 IOH is for MP(Media Phone) use.
718 ML7831 IOH is for general purpose use.
719 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
720 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
721
722config GPIO_ML_IOH
723 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
724 depends on PCI
725 select GENERIC_IRQ_CHIP
726 help
727 ML7213 is companion chip for Intel Atom E6xx series.
728 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
729 Hub) which is for IVI(In-Vehicle Infotainment) use.
730 This driver can access the IOH's GPIO device.
731
732config GPIO_SODAVILLE
733 bool "Intel Sodaville GPIO support"
734 depends on X86 && PCI && OF
735 select GPIO_GENERIC
736 select GENERIC_IRQ_CHIP
737 help
738 Say Y here to support Intel Sodaville GPIO.
739
740config GPIO_TIMBERDALE
741 bool "Support for timberdale GPIO IP"
742 depends on MFD_TIMBERDALE && HAS_IOMEM
743 ---help---
744 Add support for the GPIO IP in the timberdale FPGA.
745
746config GPIO_RDC321X
747 tristate "RDC R-321x GPIO support"
748 depends on PCI
749 select MFD_CORE
750 select MFD_RDC321X
751 help
752 Support for the RDC R321x SoC GPIOs over southbridge
753 PCI configuration space.
754
755comment "SPI GPIO expanders:"
756
757config GPIO_MAX7301
758 tristate "Maxim MAX7301 GPIO expander"
759 depends on SPI_MASTER
760 select GPIO_MAX730X
761 help
762 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
763
764config GPIO_MCP23S08
765 tristate "Microchip MCP23xxx I/O expander"
766 depends on OF_GPIO
767 depends on (SPI_MASTER && !I2C) || I2C
768 help
769 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
770 I/O expanders.
771 This provides a GPIO interface supporting inputs and outputs.
772 The I2C versions of the chips can be used as interrupt-controller.
773
774config GPIO_MC33880
775 tristate "Freescale MC33880 high-side/low-side switch"
776 depends on SPI_MASTER
777 help
778 SPI driver for Freescale MC33880 high-side/low-side switch.
779 This provides GPIO interface supporting inputs and outputs.
780
781config GPIO_74X164
782 tristate "74x164 serial-in/parallel-out 8-bits shift register"
783 depends on SPI_MASTER && OF
784 help
785 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
786 shift registers. This driver can be used to provide access
787 to more gpio outputs.
788
789comment "AC97 GPIO expanders:"
790
791config GPIO_UCB1400
792 tristate "Philips UCB1400 GPIO"
793 depends on UCB1400_CORE
794 help
795 This enables support for the Philips UCB1400 GPIO pins.
796 The UCB1400 is an AC97 audio codec.
797
798comment "LPC GPIO expanders:"
799
800config GPIO_KEMPLD
801 tristate "Kontron ETX / COMexpress GPIO"
802 depends on MFD_KEMPLD
803 help
804 This enables support for the PLD GPIO interface on some Kontron ETX
805 and COMexpress (ETXexpress) modules.
806
807 This driver can also be built as a module. If so, the module will be
808 called gpio-kempld.
809
810comment "MODULbus GPIO expanders:"
811
812config GPIO_JANZ_TTL
813 tristate "Janz VMOD-TTL Digital IO Module"
814 depends on MFD_JANZ_CMODIO
815 help
816 This enables support for the Janz VMOD-TTL Digital IO module.
817 This driver provides support for driving the pins in output
818 mode only. Input mode is not supported.
819
820config GPIO_PALMAS
821 bool "TI PALMAS series PMICs GPIO"
822 depends on MFD_PALMAS
823 help
824 Select this option to enable GPIO driver for the TI PALMAS
825 series chip family.
826
827config GPIO_TPS6586X
828 bool "TPS6586X GPIO"
829 depends on MFD_TPS6586X
830 help
831 Select this option to enable GPIO driver for the TPS6586X
832 chip family.
833
834config GPIO_TPS65910
835 bool "TPS65910 GPIO"
836 depends on MFD_TPS65910
837 help
838 Select this option to enable GPIO driver for the TPS65910
839 chip family.
840
841config GPIO_MSIC
842 bool "Intel MSIC mixed signal gpio support"
843 depends on MFD_INTEL_MSIC
844 help
845 Enable support for GPIO on intel MSIC controllers found in
846 intel MID devices
847
848config GPIO_BCM_KONA
849 bool "Broadcom Kona GPIO"
850 depends on OF_GPIO
851 help
852 Turn on GPIO support for Broadcom "Kona" chips.
853
854comment "USB GPIO expanders:"
855
856config GPIO_VIPERBOARD
857 tristate "Viperboard GPIO a & b support"
858 depends on MFD_VIPERBOARD && USB
859 help
860 Say yes here to access the GPIO signals of Nano River
861 Technologies Viperboard. There are two GPIO chips on the
862 board: gpioa and gpiob.
863 See viperboard API specification and Nano
864 River Tech's viperboard.h for detailed meaning
865 of the module parameters.
866
867endif