Loading...
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# SPDX-License-Identifier: GPL-2.0-only
2#
3# GPIO infrastructure and drivers
4#
5
6config ARCH_HAVE_CUSTOM_GPIO_H
7 bool
8 help
9 Selecting this config option from the architecture Kconfig allows
10 the architecture to provide a custom asm/gpio.h implementation
11 overriding the default implementations. New uses of this are
12 strongly discouraged.
13
14menuconfig GPIOLIB
15 bool "GPIO Support"
16 help
17 This enables GPIO support through the generic GPIO library.
18 You only need to enable this, if you also want to enable
19 one or more of the GPIO drivers below.
20
21 If unsure, say N.
22
23if GPIOLIB
24
25config GPIOLIB_FASTPATH_LIMIT
26 int "Maximum number of GPIOs for fast path"
27 range 32 512
28 default 512
29 help
30 This adjusts the point at which certain APIs will switch from
31 using a stack allocated buffer to a dynamically allocated buffer.
32
33 You shouldn't need to change this unless you really need to
34 optimize either stack space or performance. Change this carefully
35 since setting an incorrect value could cause stack corruption.
36
37config OF_GPIO
38 def_bool y
39 depends on OF
40 depends on HAS_IOMEM
41
42config GPIO_ACPI
43 def_bool y
44 depends on ACPI
45
46config GPIOLIB_IRQCHIP
47 select IRQ_DOMAIN
48 bool
49
50config DEBUG_GPIO
51 bool "Debug GPIO calls"
52 depends on DEBUG_KERNEL
53 help
54 Say Y here to add some extra checks and diagnostics to GPIO calls.
55 These checks help ensure that GPIOs have been properly initialized
56 before they are used, and that sleeping calls are not made from
57 non-sleeping contexts. They can make bitbanged serial protocols
58 slower. The diagnostics help catch the type of setup errors
59 that are most common when setting up new platforms or boards.
60
61config GPIO_SYSFS
62 bool "/sys/class/gpio/... (sysfs interface)" if EXPERT
63 depends on SYSFS
64 select GPIO_CDEV # We need to encourage the new ABI
65 help
66 Say Y here to add the legacy sysfs interface for GPIOs.
67
68 This ABI is deprecated. If you want to use GPIO from userspace,
69 use the character device /dev/gpiochipN with the appropriate
70 ioctl() operations instead.
71
72config GPIO_CDEV
73 bool
74 prompt "Character device (/dev/gpiochipN) support" if EXPERT
75 default y
76 help
77 Say Y here to add the character device /dev/gpiochipN interface
78 for GPIOs. The character device allows userspace to control GPIOs
79 using ioctl() operations.
80
81 Only say N if you are sure that the GPIO character device is not
82 required.
83
84 If unsure, say Y.
85
86config GPIO_CDEV_V1
87 bool "Support GPIO ABI Version 1"
88 default y
89 depends on GPIO_CDEV
90 help
91 Say Y here to support version 1 of the GPIO CDEV ABI.
92
93 This ABI version is deprecated.
94 Please use the latest ABI for new developments.
95
96 If unsure, say Y.
97
98config GPIO_GENERIC
99 depends on HAS_IOMEM # Only for IOMEM drivers
100 tristate
101
102config GPIO_REGMAP
103 depends on REGMAP
104 tristate
105
106# put drivers in the right section, in alphabetical order
107
108# This symbol is selected by both I2C and SPI expanders
109config GPIO_MAX730X
110 tristate
111
112menu "Memory mapped GPIO drivers"
113 depends on HAS_IOMEM
114
115config GPIO_74XX_MMIO
116 tristate "GPIO driver for 74xx-ICs with MMIO access"
117 depends on OF_GPIO
118 select GPIO_GENERIC
119 help
120 Say yes here to support GPIO functionality for 74xx-compatible ICs
121 with MMIO access. Compatible models include:
122 1 bit: 741G125 (Input), 741G74 (Output)
123 2 bits: 742G125 (Input), 7474 (Output)
124 4 bits: 74125 (Input), 74175 (Output)
125 6 bits: 74365 (Input), 74174 (Output)
126 8 bits: 74244 (Input), 74273 (Output)
127 16 bits: 741624 (Input), 7416374 (Output)
128
129config GPIO_ALTERA
130 tristate "Altera GPIO"
131 depends on OF_GPIO
132 select GPIOLIB_IRQCHIP
133 help
134 Say Y or M here to build support for the Altera PIO device.
135
136 If driver is built as a module it will be called gpio-altera.
137
138config GPIO_AMDPT
139 tristate "AMD Promontory GPIO support"
140 depends on ACPI
141 select GPIO_GENERIC
142 help
143 driver for GPIO functionality on Promontory IOHub
144 Require ACPI ASL code to enumerate as a platform device.
145
146config GPIO_ASPEED
147 tristate "Aspeed GPIO support"
148 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
149 select GPIOLIB_IRQCHIP
150 help
151 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
152
153config GPIO_ASPEED_SGPIO
154 bool "Aspeed SGPIO support"
155 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
156 select GPIO_GENERIC
157 select GPIOLIB_IRQCHIP
158 help
159 Say Y here to support Aspeed AST2500 SGPIO functionality.
160
161config GPIO_ATH79
162 tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
163 default y if ATH79
164 depends on ATH79 || COMPILE_TEST
165 select GPIO_GENERIC
166 select GPIOLIB_IRQCHIP
167 help
168 Select this option to enable GPIO driver for
169 Atheros AR71XX/AR724X/AR913X SoC devices.
170
171config GPIO_RASPBERRYPI_EXP
172 tristate "Raspberry Pi 3 GPIO Expander"
173 default RASPBERRYPI_FIRMWARE
174 depends on OF_GPIO
175 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
176 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
177 depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
178 help
179 Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
180 the firmware mailbox to communicate with VideoCore on BCM283x chips.
181
182config GPIO_BCM_KONA
183 bool "Broadcom Kona GPIO"
184 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
185 help
186 Turn on GPIO support for Broadcom "Kona" chips.
187
188config GPIO_BCM_XGS_IPROC
189 tristate "BRCM XGS iProc GPIO support"
190 depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST)
191 select GPIO_GENERIC
192 select GPIOLIB_IRQCHIP
193 default ARCH_BCM_IPROC
194 help
195 Say yes here to enable GPIO support for Broadcom XGS iProc SoCs.
196
197config GPIO_BRCMSTB
198 tristate "BRCMSTB GPIO support"
199 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
200 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
201 select GPIO_GENERIC
202 select IRQ_DOMAIN
203 help
204 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
205
206config GPIO_CADENCE
207 tristate "Cadence GPIO support"
208 depends on OF_GPIO
209 select GPIO_GENERIC
210 select GPIOLIB_IRQCHIP
211 help
212 Say yes here to enable support for Cadence GPIO controller.
213
214config GPIO_CLPS711X
215 tristate "CLPS711X GPIO support"
216 depends on ARCH_CLPS711X || COMPILE_TEST
217 select GPIO_GENERIC
218 help
219 Say yes here to support GPIO on CLPS711X SoCs.
220
221config GPIO_DAVINCI
222 bool "TI Davinci/Keystone GPIO support"
223 default y if ARCH_DAVINCI
224 depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3)
225 help
226 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
227
228config GPIO_DWAPB
229 tristate "Synopsys DesignWare APB GPIO driver"
230 select GPIO_GENERIC
231 select GPIOLIB_IRQCHIP
232 help
233 Say Y or M here to build support for the Synopsys DesignWare APB
234 GPIO block.
235
236config GPIO_EIC_SPRD
237 tristate "Spreadtrum EIC support"
238 depends on ARCH_SPRD || COMPILE_TEST
239 depends on OF_GPIO
240 select GPIOLIB_IRQCHIP
241 help
242 Say yes here to support Spreadtrum EIC device.
243
244config GPIO_EM
245 tristate "Emma Mobile GPIO"
246 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
247 help
248 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
249
250config GPIO_EP93XX
251 def_bool y
252 depends on ARCH_EP93XX
253 select GPIO_GENERIC
254 select GPIOLIB_IRQCHIP
255
256config GPIO_EXAR
257 tristate "Support for GPIO pins on XR17V352/354/358"
258 depends on SERIAL_8250_EXAR
259 select REGMAP_MMIO
260 help
261 Selecting this option will enable handling of GPIO pins present
262 on Exar XR17V352/354/358 chips.
263
264config GPIO_GE_FPGA
265 bool "GE FPGA based GPIO"
266 depends on GE_FPGA
267 select GPIO_GENERIC
268 help
269 Support for common GPIO functionality provided on some GE Single Board
270 Computers.
271
272 This driver provides basic support (configure as input or output, read
273 and write pin state) for GPIO implemented in a number of GE single
274 board computers.
275
276config GPIO_FTGPIO010
277 bool "Faraday FTGPIO010 GPIO"
278 depends on OF_GPIO
279 select GPIO_GENERIC
280 select GPIOLIB_IRQCHIP
281 default (ARCH_GEMINI || ARCH_MOXART)
282 help
283 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
284 Cortina systems Gemini platforms, Moxa ART and others.
285
286config GPIO_GENERIC_PLATFORM
287 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
288 select GPIO_GENERIC
289 help
290 Say yes here to support basic platform_device memory-mapped GPIO controllers.
291
292config GPIO_GRGPIO
293 tristate "Aeroflex Gaisler GRGPIO support"
294 depends on OF_GPIO
295 select GPIO_GENERIC
296 select IRQ_DOMAIN
297 help
298 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
299 VHDL IP core library.
300
301config GPIO_HISI
302 tristate "HiSilicon GPIO controller driver"
303 depends on (ARM64 && ACPI) || COMPILE_TEST
304 select GPIO_GENERIC
305 select GPIOLIB_IRQCHIP
306 help
307 Say Y or M here to build support for the HiSilicon GPIO controller
308 driver GPIO block.
309 This GPIO controller support double-edge interrupt and multi-core
310 concurrent access.
311
312config GPIO_HLWD
313 tristate "Nintendo Wii (Hollywood) GPIO"
314 depends on OF_GPIO
315 select GPIO_GENERIC
316 select GPIOLIB_IRQCHIP
317 help
318 Select this to support the GPIO controller of the Nintendo Wii.
319
320 If unsure, say N.
321
322config GPIO_ICH
323 tristate "Intel ICH GPIO"
324 depends on X86
325 depends on LPC_ICH
326 help
327 Say yes here to support the GPIO functionality of a number of Intel
328 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
329 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
330 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
331
332 If unsure, say N.
333
334config GPIO_IOP
335 tristate "Intel IOP GPIO"
336 depends on ARCH_IOP32X || COMPILE_TEST
337 select GPIO_GENERIC
338 help
339 Say yes here to support the GPIO functionality of a number of Intel
340 IOP32X or IOP33X.
341
342 If unsure, say N.
343
344config GPIO_IXP4XX
345 bool "Intel IXP4xx GPIO"
346 depends on ARM # For <asm/mach-types.h>
347 depends on ARCH_IXP4XX
348 select GPIO_GENERIC
349 select GPIOLIB_IRQCHIP
350 select IRQ_DOMAIN_HIERARCHY
351 help
352 Say yes here to support the GPIO functionality of a number of Intel
353 IXP4xx series of chips.
354
355 If unsure, say N.
356config GPIO_LOGICVC
357 tristate "Xylon LogiCVC GPIO support"
358 depends on MFD_SYSCON && OF
359 help
360 Say yes here to support GPIO functionality of the Xylon LogiCVC
361 programmable logic block.
362
363config GPIO_LOONGSON
364 bool "Loongson-2/3 GPIO support"
365 depends on CPU_LOONGSON2EF || CPU_LOONGSON64
366 help
367 driver for GPIO functionality on Loongson-2F/3A/3B processors.
368
369config GPIO_LPC18XX
370 tristate "NXP LPC18XX/43XX GPIO support"
371 default y if ARCH_LPC18XX
372 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
373 select IRQ_DOMAIN_HIERARCHY
374 help
375 Select this option to enable GPIO driver for
376 NXP LPC18XX/43XX devices.
377
378config GPIO_LPC32XX
379 tristate "NXP LPC32XX GPIO support"
380 depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST)
381 help
382 Select this option to enable GPIO driver for
383 NXP LPC32XX devices.
384
385config GPIO_MB86S7X
386 tristate "GPIO support for Fujitsu MB86S7x Platforms"
387 help
388 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
389
390config GPIO_MENZ127
391 tristate "MEN 16Z127 GPIO support"
392 depends on MCB
393 select GPIO_GENERIC
394 help
395 Say yes here to support the MEN 16Z127 GPIO Controller
396
397config GPIO_MM_LANTIQ
398 bool "Lantiq Memory mapped GPIOs"
399 depends on LANTIQ && SOC_XWAY
400 help
401 This enables support for memory mapped GPIOs on the External Bus Unit
402 (EBU) found on Lantiq SoCs. The gpios are output only as they are
403 created by attaching a 16bit latch to the bus.
404
405config GPIO_MPC5200
406 def_bool y
407 depends on PPC_MPC52xx
408
409config GPIO_MPC8XXX
410 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
411 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
412 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
413 COMPILE_TEST
414 select GPIO_GENERIC
415 select IRQ_DOMAIN
416 help
417 Say Y here if you're going to use hardware that connects to the
418 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
419
420config GPIO_MT7621
421 bool "Mediatek MT7621 GPIO Support"
422 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
423 depends on OF_GPIO
424 select GPIO_GENERIC
425 select GPIOLIB_IRQCHIP
426 help
427 Say yes here to support the Mediatek MT7621 SoC GPIO device
428
429config GPIO_MVEBU
430 def_bool y
431 depends on PLAT_ORION || ARCH_MVEBU
432 depends on OF_GPIO
433 select GENERIC_IRQ_CHIP
434 select REGMAP_MMIO
435
436config GPIO_MXC
437 tristate "i.MX GPIO support"
438 depends on ARCH_MXC || COMPILE_TEST
439 select GPIO_GENERIC
440 select GENERIC_IRQ_CHIP
441
442config GPIO_MXS
443 bool "Freescale MXS GPIO support" if COMPILE_TEST
444 depends on ARCH_MXS || COMPILE_TEST
445 default y if ARCH_MXS
446 select GPIO_GENERIC
447 select GENERIC_IRQ_CHIP
448
449config GPIO_OCTEON
450 tristate "Cavium OCTEON GPIO"
451 depends on CAVIUM_OCTEON_SOC
452 default y
453 help
454 Say yes here to support the on-chip GPIO lines on the OCTEON
455 family of SOCs.
456
457config GPIO_OMAP
458 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
459 default y if ARCH_OMAP
460 depends on ARM
461 select GENERIC_IRQ_CHIP
462 select GPIOLIB_IRQCHIP
463 help
464 Say yes here to enable GPIO support for TI OMAP SoCs.
465
466config GPIO_PL061
467 tristate "PrimeCell PL061 GPIO support"
468 depends on ARM_AMBA
469 select IRQ_DOMAIN
470 select GPIOLIB_IRQCHIP
471 help
472 Say yes here to support the PrimeCell PL061 GPIO device
473
474config GPIO_PMIC_EIC_SPRD
475 tristate "Spreadtrum PMIC EIC support"
476 depends on MFD_SC27XX_PMIC || COMPILE_TEST
477 depends on OF_GPIO
478 select GPIOLIB_IRQCHIP
479 help
480 Say yes here to support Spreadtrum PMIC EIC device.
481
482config GPIO_PXA
483 bool "PXA GPIO support"
484 depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST
485 help
486 Say yes here to support the PXA GPIO device
487
488config GPIO_RCAR
489 tristate "Renesas R-Car and RZ/G GPIO support"
490 depends on ARCH_RENESAS || COMPILE_TEST
491 select GPIOLIB_IRQCHIP
492 help
493 Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs.
494
495config GPIO_RDA
496 bool "RDA Micro GPIO controller support"
497 depends on ARCH_RDA || COMPILE_TEST
498 depends on OF_GPIO
499 select GPIO_GENERIC
500 select GPIOLIB_IRQCHIP
501 help
502 Say Y here to support RDA Micro GPIO controller.
503
504config GPIO_REALTEK_OTTO
505 tristate "Realtek Otto GPIO support"
506 depends on MACH_REALTEK_RTL
507 default MACH_REALTEK_RTL
508 select GPIO_GENERIC
509 select GPIOLIB_IRQCHIP
510 help
511 The GPIO controller on the Otto MIPS platform supports up to two
512 banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs
513 are grouped in four 8-bit wide ports.
514
515 When built as a module, the module will be called realtek_otto_gpio.
516
517config GPIO_REG
518 bool
519 help
520 A 32-bit single register GPIO fixed in/out implementation. This
521 can be used to represent any register as a set of GPIO signals.
522
523config GPIO_SAMA5D2_PIOBU
524 tristate "SAMA5D2 PIOBU GPIO support"
525 depends on MFD_SYSCON
526 depends on OF_GPIO
527 select GPIO_SYSCON
528 help
529 Say yes here to use the PIOBU pins as GPIOs.
530
531 PIOBU pins on the SAMA5D2 can be used as GPIOs.
532 The difference from regular GPIOs is that they
533 maintain their value during backup/self-refresh.
534
535config GPIO_SIFIVE
536 bool "SiFive GPIO support"
537 depends on OF_GPIO
538 select IRQ_DOMAIN_HIERARCHY
539 select GPIO_GENERIC
540 select GPIOLIB_IRQCHIP
541 select REGMAP_MMIO
542 help
543 Say yes here to support the GPIO device on SiFive SoCs.
544
545config GPIO_SIOX
546 tristate "SIOX GPIO support"
547 depends on SIOX
548 select GPIOLIB_IRQCHIP
549 help
550 Say yes here to support SIOX I/O devices. These are units connected
551 via a SIOX bus and have a number of fixed-direction I/O lines.
552
553config GPIO_SNPS_CREG
554 bool "Synopsys GPIO via CREG (Control REGisters) driver"
555 depends on ARC || COMPILE_TEST
556 depends on OF_GPIO
557 help
558 This driver supports GPIOs via CREG on various Synopsys SoCs.
559 This is a single-register MMIO GPIO driver for complex cases
560 where only several fields in register belong to GPIO lines and
561 each GPIO line owns a field with different length and on/off value.
562
563config GPIO_SPEAR_SPICS
564 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
565 depends on PLAT_SPEAR
566 select GENERIC_IRQ_CHIP
567 help
568 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
569
570config GPIO_SPRD
571 tristate "Spreadtrum GPIO support"
572 depends on ARCH_SPRD || COMPILE_TEST
573 depends on OF_GPIO
574 select GPIOLIB_IRQCHIP
575 help
576 Say yes here to support Spreadtrum GPIO device.
577
578config GPIO_STA2X11
579 bool "STA2x11/ConneXt GPIO support"
580 depends on MFD_STA2X11
581 select GENERIC_IRQ_CHIP
582 help
583 Say yes here to support the STA2x11/ConneXt GPIO device.
584 The GPIO module has 128 GPIO pins with alternate functions.
585
586config GPIO_STP_XWAY
587 bool "XWAY STP GPIOs"
588 depends on SOC_XWAY || COMPILE_TEST
589 depends on OF_GPIO
590 help
591 This enables support for the Serial To Parallel (STP) unit found on
592 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
593 that can be up to 24 bit. This peripheral is aimed at driving leds.
594 Some of the gpios/leds can be auto updated by the soc with dsl and
595 phy status.
596
597config GPIO_SYSCON
598 tristate "GPIO based on SYSCON"
599 depends on MFD_SYSCON && OF
600 help
601 Say yes here to support GPIO functionality though SYSCON driver.
602
603config GPIO_TB10X
604 bool
605 select GPIO_GENERIC
606 select GENERIC_IRQ_CHIP
607 select OF_GPIO
608
609config GPIO_TEGRA
610 tristate "NVIDIA Tegra GPIO support"
611 default ARCH_TEGRA
612 depends on ARCH_TEGRA || COMPILE_TEST
613 depends on OF_GPIO
614 select GPIOLIB_IRQCHIP
615 select IRQ_DOMAIN_HIERARCHY
616 help
617 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
618
619config GPIO_TEGRA186
620 tristate "NVIDIA Tegra186 GPIO support"
621 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC
622 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST
623 depends on OF_GPIO
624 select GPIOLIB_IRQCHIP
625 select IRQ_DOMAIN_HIERARCHY
626 help
627 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
628
629config GPIO_TS4800
630 tristate "TS-4800 DIO blocks and compatibles"
631 depends on OF_GPIO
632 depends on SOC_IMX51 || COMPILE_TEST
633 select GPIO_GENERIC
634 help
635 This driver support TS-4800 FPGA GPIO controllers.
636
637config GPIO_THUNDERX
638 tristate "Cavium ThunderX/OCTEON-TX GPIO"
639 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
640 depends on PCI_MSI
641 select GPIOLIB_IRQCHIP
642 select IRQ_DOMAIN_HIERARCHY
643 select IRQ_FASTEOI_HIERARCHY_HANDLERS
644 help
645 Say yes here to support the on-chip GPIO lines on the ThunderX
646 and OCTEON-TX families of SoCs.
647
648config GPIO_UNIPHIER
649 tristate "UniPhier GPIO support"
650 depends on ARCH_UNIPHIER || COMPILE_TEST
651 depends on OF_GPIO
652 select IRQ_DOMAIN_HIERARCHY
653 help
654 Say yes here to support UniPhier GPIOs.
655
656config GPIO_VF610
657 def_bool y
658 depends on ARCH_MXC && SOC_VF610
659 select GPIOLIB_IRQCHIP
660 help
661 Say yes here to support Vybrid vf610 GPIOs.
662
663config GPIO_VISCONTI
664 tristate "Toshiba Visconti GPIO support"
665 depends on ARCH_VISCONTI || COMPILE_TEST
666 depends on OF_GPIO
667 select GPIOLIB_IRQCHIP
668 select GPIO_GENERIC
669 select IRQ_DOMAIN_HIERARCHY
670 help
671 Say yes here to support GPIO on Tohisba Visconti.
672
673config GPIO_VR41XX
674 tristate "NEC VR4100 series General-purpose I/O Uint support"
675 depends on CPU_VR41XX
676 help
677 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
678
679config GPIO_VX855
680 tristate "VIA VX855/VX875 GPIO"
681 depends on (X86 || COMPILE_TEST) && PCI
682 select MFD_CORE
683 select MFD_VX855
684 help
685 Support access to the VX855/VX875 GPIO lines through the gpio library.
686
687 This driver provides common support for accessing the device,
688 additional drivers must be enabled in order to use the
689 functionality of the device.
690
691config GPIO_WCD934X
692 tristate "Qualcomm Technologies Inc WCD9340/WCD9341 gpio controller driver"
693 depends on MFD_WCD934X && OF_GPIO
694 help
695 This driver is to support GPIO block found on the Qualcomm Technologies
696 Inc WCD9340/WCD9341 Audio Codec.
697
698config GPIO_XGENE
699 bool "APM X-Gene GPIO controller support"
700 depends on ARM64 && OF_GPIO
701 help
702 This driver is to support the GPIO block within the APM X-Gene SoC
703 platform's generic flash controller. The GPIO pins are muxed with
704 the generic flash controller's address and data pins. Say yes
705 here to enable the GFC GPIO functionality.
706
707config GPIO_XGENE_SB
708 tristate "APM X-Gene GPIO standby controller support"
709 depends on (ARCH_XGENE || COMPILE_TEST)
710 select GPIO_GENERIC
711 select GPIOLIB_IRQCHIP
712 select IRQ_DOMAIN_HIERARCHY
713 help
714 This driver supports the GPIO block within the APM X-Gene
715 Standby Domain. Say yes here to enable the GPIO functionality.
716
717config GPIO_XILINX
718 tristate "Xilinx GPIO support"
719 select GPIOLIB_IRQCHIP
720 depends on OF_GPIO
721 help
722 Say yes here to support the Xilinx FPGA GPIO device
723
724config GPIO_XLP
725 tristate "Netlogic XLP GPIO support"
726 depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
727 select GPIOLIB_IRQCHIP
728 help
729 This driver provides support for GPIO interface on Netlogic XLP MIPS64
730 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
731 XLP9XX and XLP5XX. The same GPIO controller block is also present in
732 Cavium's ThunderX2 CN99XX SoCs.
733
734 If unsure, say N.
735
736config GPIO_XTENSA
737 bool "Xtensa GPIO32 support"
738 depends on XTENSA
739 depends on HAVE_XTENSA_GPIO32
740 depends on !SMP
741 help
742 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
743 and EXPSTATE (output) ports
744
745config GPIO_ZEVIO
746 bool "LSI ZEVIO SoC memory mapped GPIOs"
747 depends on ARM && OF_GPIO
748 help
749 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
750
751config GPIO_ZYNQ
752 tristate "Xilinx Zynq GPIO support"
753 depends on ARCH_ZYNQ || ARCH_ZYNQMP
754 select GPIOLIB_IRQCHIP
755 help
756 Say yes here to support Xilinx Zynq GPIO controller.
757
758config GPIO_LOONGSON1
759 tristate "Loongson1 GPIO support"
760 depends on MACH_LOONGSON32
761 select GPIO_GENERIC
762 help
763 Say Y or M here to support GPIO on Loongson1 SoCs.
764
765config GPIO_AMD_FCH
766 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
767 help
768 This option enables driver for GPIO on AMDs Fusion Controller Hub,
769 as found on G-series SOCs (eg. GX-412TC)
770
771 Note: This driver doesn't registers itself automatically, as it
772 needs to be provided with platform specific configuration.
773 (See eg. CONFIG_PCENGINES_APU2.)
774
775config GPIO_MSC313
776 bool "MStar MSC313 GPIO support"
777 depends on ARCH_MSTARV7
778 default ARCH_MSTARV7
779 select GPIOLIB_IRQCHIP
780 select IRQ_DOMAIN_HIERARCHY
781 help
782 Say Y here to support the main GPIO block on MStar/SigmaStar
783 ARMv7 based SoCs.
784
785config GPIO_IDT3243X
786 tristate "IDT 79RC3243X GPIO support"
787 depends on MIKROTIK_RB532 || COMPILE_TEST
788 select GPIO_GENERIC
789 select GPIOLIB_IRQCHIP
790 help
791 Select this option to enable GPIO driver for
792 IDT 79RC3243X based devices like Mikrotik RB532.
793
794 To compile this driver as a module, choose M here: the module will
795 be called gpio-idt3243x.
796
797endmenu
798
799menu "Port-mapped I/O GPIO drivers"
800 depends on X86 # Unconditional I/O space access
801
802config GPIO_104_DIO_48E
803 tristate "ACCES 104-DIO-48E GPIO support"
804 depends on PC104
805 select ISA_BUS_API
806 select GPIOLIB_IRQCHIP
807 help
808 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
809 104-DIO-24E). The base port addresses for the devices may be
810 configured via the base module parameter. The interrupt line numbers
811 for the devices may be configured via the irq module parameter.
812
813config GPIO_104_IDIO_16
814 tristate "ACCES 104-IDIO-16 GPIO support"
815 depends on PC104
816 select ISA_BUS_API
817 select GPIOLIB_IRQCHIP
818 help
819 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
820 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
821 base port addresses for the devices may be configured via the base
822 module parameter. The interrupt line numbers for the devices may be
823 configured via the irq module parameter.
824
825config GPIO_104_IDI_48
826 tristate "ACCES 104-IDI-48 GPIO support"
827 depends on PC104
828 select ISA_BUS_API
829 select GPIOLIB_IRQCHIP
830 help
831 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
832 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
833 the devices may be configured via the base module parameter. The
834 interrupt line numbers for the devices may be configured via the irq
835 module parameter.
836
837config GPIO_F7188X
838 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
839 help
840 This option enables support for GPIOs found on Fintek Super-I/O
841 chips F71869, F71869A, F71882FG, F71889F and F81866.
842
843 To compile this driver as a module, choose M here: the module will
844 be called f7188x-gpio.
845
846config GPIO_GPIO_MM
847 tristate "Diamond Systems GPIO-MM GPIO support"
848 depends on PC104
849 select ISA_BUS_API
850 help
851 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
852
853 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
854 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
855 support for these 48 channels of digital I/O.
856
857 The base port addresses for the devices may be configured via the base
858 array module parameter.
859
860config GPIO_IT87
861 tristate "IT87xx GPIO support"
862 help
863 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
864
865 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
866 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
867 well.
868
869 To compile this driver as a module, choose M here: the module will
870 be called gpio_it87
871
872config GPIO_SCH
873 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
874 depends on (X86 || COMPILE_TEST) && ACPI
875 depends on LPC_SCH
876 select GPIOLIB_IRQCHIP
877 help
878 Say yes here to support GPIO interface on Intel Poulsbo SCH,
879 Intel Tunnel Creek processor, Intel Centerton processor or
880 Intel Quark X1000 SoC.
881
882 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
883 powered by the core power rail and are turned off during sleep
884 modes (S3 and higher). The remaining four GPIOs are powered by
885 the Intel SCH suspend power supply. These GPIOs remain
886 active during S3. The suspend powered GPIOs can be used to wake the
887 system from the Suspend-to-RAM state.
888
889 The Intel Tunnel Creek processor has 5 GPIOs powered by the
890 core power rail and 9 from suspend power supply.
891
892 The Intel Centerton processor has a total of 30 GPIO pins.
893 Twenty-one are powered by the core power rail and 9 from the
894 suspend power supply.
895
896 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
897 power well and 6 from the suspend power well.
898
899config GPIO_SCH311X
900 tristate "SMSC SCH311x SuperI/O GPIO"
901 help
902 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
903 SCH3116 "Super I/O" chipsets.
904
905 To compile this driver as a module, choose M here: the module will
906 be called gpio-sch311x.
907
908config GPIO_TS5500
909 tristate "TS-5500 DIO blocks and compatibles"
910 depends on TS5500 || COMPILE_TEST
911 help
912 This driver supports Digital I/O exposed by pin blocks found on some
913 Technologic Systems platforms. It includes, but is not limited to, 3
914 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
915 LCD port.
916
917config GPIO_WINBOND
918 tristate "Winbond Super I/O GPIO support"
919 select ISA_BUS_API
920 help
921 This option enables support for GPIOs found on Winbond Super I/O
922 chips.
923 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
924 supported.
925
926 You will need to provide a module parameter "gpios", or a
927 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
928 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
929
930 To compile this driver as a module, choose M here: the module will
931 be called gpio-winbond.
932
933config GPIO_WS16C48
934 tristate "WinSystems WS16C48 GPIO support"
935 select ISA_BUS_API
936 select GPIOLIB_IRQCHIP
937 help
938 Enables GPIO support for the WinSystems WS16C48. The base port
939 addresses for the devices may be configured via the base module
940 parameter. The interrupt line numbers for the devices may be
941 configured via the irq module parameter.
942
943endmenu
944
945menu "I2C GPIO expanders"
946 depends on I2C
947
948config GPIO_ADP5588
949 tristate "ADP5588 I2C GPIO expander"
950 help
951 This option enables support for 18 GPIOs found
952 on Analog Devices ADP5588 GPIO Expanders.
953
954config GPIO_ADP5588_IRQ
955 bool "Interrupt controller support for ADP5588"
956 depends on GPIO_ADP5588=y
957 select GPIOLIB_IRQCHIP
958 help
959 Say yes here to enable the adp5588 to be used as an interrupt
960 controller. It requires the driver to be built in the kernel.
961
962config GPIO_ADNP
963 tristate "Avionic Design N-bit GPIO expander"
964 depends on OF_GPIO
965 select GPIOLIB_IRQCHIP
966 help
967 This option enables support for N GPIOs found on Avionic Design
968 I2C GPIO expanders. The register space will be extended by powers
969 of two, so the controller will need to accommodate for that. For
970 example: if a controller provides 48 pins, 6 registers will be
971 enough to represent all pins, but the driver will assume a
972 register layout for 64 pins (8 registers).
973
974config GPIO_GW_PLD
975 tristate "Gateworks PLD GPIO Expander"
976 depends on OF_GPIO
977 help
978 Say yes here to provide access to the Gateworks I2C PLD GPIO
979 Expander. This is used at least on the Cambria GW2358-4.
980
981config GPIO_MAX7300
982 tristate "Maxim MAX7300 GPIO expander"
983 select GPIO_MAX730X
984 help
985 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
986
987config GPIO_MAX732X
988 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
989 help
990 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
991 Port Expanders. Each IO port on these chips has a fixed role of
992 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
993 Input and Output (designed by 'P'). The combinations are listed
994 below:
995
996 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
997 max7322 (4I4O), max7323 (4P4O)
998
999 16 bits: max7324 (8I8O), max7325 (8P8O),
1000 max7326 (4I12O), max7327 (4P12O)
1001
1002 Board setup code must specify the model to use, and the start
1003 number for these GPIOs.
1004
1005config GPIO_MAX732X_IRQ
1006 bool "Interrupt controller support for MAX732x"
1007 depends on GPIO_MAX732X=y
1008 select GPIOLIB_IRQCHIP
1009 help
1010 Say yes here to enable the max732x to be used as an interrupt
1011 controller. It requires the driver to be built in the kernel.
1012
1013config GPIO_MC9S08DZ60
1014 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
1015 depends on I2C=y && MACH_MX35_3DS
1016 help
1017 Select this to enable the MC9S08DZ60 GPIO driver
1018
1019config GPIO_PCA953X
1020 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
1021 select REGMAP_I2C
1022 help
1023 Say yes here to provide access to several register-oriented
1024 SMBus I/O expanders, made mostly by NXP or TI. Compatible
1025 models include:
1026
1027 4 bits: pca9536, pca9537
1028
1029 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
1030 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
1031
1032 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
1033 tca6416
1034
1035 24 bits: tca6424
1036
1037 40 bits: pca9505, pca9698
1038
1039config GPIO_PCA953X_IRQ
1040 bool "Interrupt controller support for PCA953x"
1041 depends on GPIO_PCA953X
1042 select GPIOLIB_IRQCHIP
1043 help
1044 Say yes here to enable the pca953x to be used as an interrupt
1045 controller. It requires the driver to be built in the kernel.
1046
1047config GPIO_PCA9570
1048 tristate "PCA9570 4-Bit I2C GPO expander"
1049 help
1050 Say yes here to enable the GPO driver for the NXP PCA9570 chip.
1051
1052 To compile this driver as a module, choose M here: the module will
1053 be called gpio-pca9570.
1054
1055config GPIO_PCF857X
1056 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
1057 select GPIOLIB_IRQCHIP
1058 select IRQ_DOMAIN
1059 help
1060 Say yes here to provide access to most "quasi-bidirectional" I2C
1061 GPIO expanders used for additional digital outputs or inputs.
1062 Most of these parts are from NXP, though TI is a second source for
1063 some of them. Compatible models include:
1064
1065 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
1066 pca9670, pca9672, pca9674, pca9674a,
1067 max7328, max7329
1068
1069 16 bits: pcf8575, pcf8575c, pca8575,
1070 pca9671, pca9673, pca9675
1071
1072 Your board setup code will need to declare the expanders in
1073 use, and assign numbers to the GPIOs they expose. Those GPIOs
1074 can then be used from drivers and other kernel code, just like
1075 other GPIOs, but only accessible from task contexts.
1076
1077 This driver provides an in-kernel interface to those GPIOs using
1078 platform-neutral GPIO calls.
1079
1080config GPIO_TPIC2810
1081 tristate "TPIC2810 8-Bit I2C GPO expander"
1082 help
1083 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
1084
1085 To compile this driver as a module, choose M here: the module will
1086 be called gpio-tpic2810.
1087
1088config GPIO_TS4900
1089 tristate "Technologic Systems FPGA I2C GPIO"
1090 depends on SOC_IMX6 || COMPILE_TEST
1091 select REGMAP_I2C
1092 help
1093 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
1094 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
1095
1096endmenu
1097
1098menu "MFD GPIO expanders"
1099
1100config GPIO_ADP5520
1101 tristate "GPIO Support for ADP5520 PMIC"
1102 depends on PMIC_ADP5520
1103 help
1104 This option enables support for on-chip GPIO found
1105 on Analog Devices ADP5520 PMICs.
1106
1107config GPIO_ALTERA_A10SR
1108 tristate "Altera Arria10 System Resource GPIO"
1109 depends on MFD_ALTERA_A10SR
1110 help
1111 Driver for Arria10 Development Kit GPIO expansion which
1112 includes reads of pushbuttons and DIP switches as well
1113 as writes to LEDs.
1114
1115config GPIO_ARIZONA
1116 tristate "Wolfson Microelectronics Arizona class devices"
1117 depends on MFD_ARIZONA
1118 help
1119 Support for GPIOs on Wolfson Arizona class devices.
1120
1121config GPIO_BD70528
1122 tristate "ROHM BD70528 GPIO support"
1123 depends on MFD_ROHM_BD70528
1124 help
1125 Support for GPIOs on ROHM BD70528 PMIC. There are four GPIOs
1126 available on the ROHM PMIC in total. The GPIOs can also
1127 generate interrupts.
1128
1129 This driver can also be built as a module. If so, the module
1130 will be called gpio-bd70528.
1131
1132config GPIO_BD71815
1133 tristate "ROHM BD71815 PMIC GPIO support"
1134 depends on MFD_ROHM_BD71828
1135 help
1136 Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs
1137 available on the ROHM PMIC.
1138
1139 This driver can also be built as a module. If so, the module
1140 will be called gpio-bd71815.
1141
1142config GPIO_BD71828
1143 tristate "ROHM BD71828 GPIO support"
1144 depends on MFD_ROHM_BD71828
1145 help
1146 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs
1147 available on the ROHM PMIC in total. The GPIOs are limited to
1148 outputs only and pins must be configured to GPIO outputs by
1149 OTP. Enable this only if you want to use these pins as outputs.
1150
1151 This driver can also be built as a module. If so, the module
1152 will be called gpio-bd71828.
1153
1154config GPIO_BD9571MWV
1155 tristate "ROHM BD9571 GPIO support"
1156 depends on MFD_BD9571MWV
1157 help
1158 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
1159 available on the ROHM PMIC in total, both of which can also
1160 generate interrupts.
1161
1162 This driver can also be built as a module. If so, the module
1163 will be called gpio-bd9571mwv.
1164
1165config GPIO_CRYSTAL_COVE
1166 tristate "GPIO support for Crystal Cove PMIC"
1167 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1168 select GPIOLIB_IRQCHIP
1169 help
1170 Support for GPIO pins on Crystal Cove PMIC.
1171
1172 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
1173 inside.
1174
1175 This driver can also be built as a module. If so, the module will be
1176 called gpio-crystalcove.
1177
1178config GPIO_CS5535
1179 tristate "AMD CS5535/CS5536 GPIO support"
1180 depends on X86 || MIPS || COMPILE_TEST
1181 depends on MFD_CS5535
1182 help
1183 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1184 can be used for quite a number of things. The CS5535/6 is found on
1185 AMD Geode and Lemote Yeeloong devices.
1186
1187 If unsure, say N.
1188
1189config GPIO_DA9052
1190 tristate "Dialog DA9052 GPIO"
1191 depends on PMIC_DA9052
1192 help
1193 Say yes here to enable the GPIO driver for the DA9052 chip.
1194
1195config GPIO_DA9055
1196 tristate "Dialog Semiconductor DA9055 GPIO"
1197 depends on MFD_DA9055
1198 help
1199 Say yes here to enable the GPIO driver for the DA9055 chip.
1200
1201 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1202 be controller by this driver.
1203
1204 If driver is built as a module it will be called gpio-da9055.
1205
1206config GPIO_DLN2
1207 tristate "Diolan DLN2 GPIO support"
1208 depends on MFD_DLN2
1209 select GPIOLIB_IRQCHIP
1210
1211 help
1212 Select this option to enable GPIO driver for the Diolan DLN2
1213 board.
1214
1215 This driver can also be built as a module. If so, the module
1216 will be called gpio-dln2.
1217
1218config HTC_EGPIO
1219 bool "HTC EGPIO support"
1220 depends on ARM
1221 help
1222 This driver supports the CPLD egpio chip present on
1223 several HTC phones. It provides basic support for input
1224 pins, output pins, and irqs.
1225
1226config GPIO_JANZ_TTL
1227 tristate "Janz VMOD-TTL Digital IO Module"
1228 depends on MFD_JANZ_CMODIO
1229 help
1230 This enables support for the Janz VMOD-TTL Digital IO module.
1231 This driver provides support for driving the pins in output
1232 mode only. Input mode is not supported.
1233
1234config GPIO_KEMPLD
1235 tristate "Kontron ETX / COMexpress GPIO"
1236 depends on MFD_KEMPLD
1237 help
1238 This enables support for the PLD GPIO interface on some Kontron ETX
1239 and COMexpress (ETXexpress) modules.
1240
1241 This driver can also be built as a module. If so, the module will be
1242 called gpio-kempld.
1243
1244config GPIO_LP3943
1245 tristate "TI/National Semiconductor LP3943 GPIO expander"
1246 depends on MFD_LP3943
1247 help
1248 GPIO driver for LP3943 MFD.
1249 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1250 Open drain outputs are required for this usage.
1251
1252config GPIO_LP873X
1253 tristate "TI LP873X GPO"
1254 depends on MFD_TI_LP873X
1255 help
1256 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1257 on LP873X PMICs.
1258
1259 This driver can also be built as a module. If so, the module will be
1260 called gpio-lp873x.
1261
1262config GPIO_LP87565
1263 tristate "TI LP87565 GPIO"
1264 depends on MFD_TI_LP87565
1265 help
1266 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1267 on LP87565 PMICs.
1268
1269 This driver can also be built as a module. If so, the module will be
1270 called gpio-lp87565.
1271
1272config GPIO_MADERA
1273 tristate "Cirrus Logic Madera class codecs"
1274 depends on PINCTRL_MADERA
1275 help
1276 Support for GPIOs on Cirrus Logic Madera class codecs.
1277
1278config GPIO_MAX77620
1279 tristate "GPIO support for PMIC MAX77620 and MAX20024"
1280 depends on MFD_MAX77620
1281 select GPIOLIB_IRQCHIP
1282 help
1283 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1284 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1285 driver also provides interrupt support for each of the gpios.
1286 Say yes here to enable the max77620 to be used as gpio controller.
1287
1288config GPIO_MAX77650
1289 tristate "Maxim MAX77650/77651 GPIO support"
1290 depends on MFD_MAX77650
1291 help
1292 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1293 These chips have a single pin that can be configured as GPIO.
1294
1295config GPIO_PALMAS
1296 bool "TI PALMAS series PMICs GPIO"
1297 depends on MFD_PALMAS
1298 help
1299 Select this option to enable GPIO driver for the TI PALMAS
1300 series chip family.
1301
1302config GPIO_RC5T583
1303 bool "RICOH RC5T583 GPIO"
1304 depends on MFD_RC5T583
1305 help
1306 Select this option to enable GPIO driver for the Ricoh RC5T583
1307 chip family.
1308 This driver provides the support for driving/reading the gpio pins
1309 of RC5T583 device through standard gpio library.
1310
1311config GPIO_SL28CPLD
1312 tristate "Kontron sl28cpld GPIO support"
1313 depends on MFD_SL28CPLD || COMPILE_TEST
1314 select GPIO_REGMAP
1315 select GPIOLIB_IRQCHIP
1316 select REGMAP_IRQ
1317 help
1318 This enables support for the GPIOs found on the Kontron sl28 CPLD.
1319
1320 This driver can also be built as a module. If so, the module will be
1321 called gpio-sl28cpld.
1322
1323config GPIO_STMPE
1324 bool "STMPE GPIOs"
1325 depends on MFD_STMPE
1326 depends on OF_GPIO
1327 select GPIOLIB_IRQCHIP
1328 help
1329 This enables support for the GPIOs found on the STMPE I/O
1330 Expanders.
1331
1332config GPIO_TC3589X
1333 bool "TC3589X GPIOs"
1334 depends on MFD_TC3589X
1335 depends on OF_GPIO
1336 select GPIOLIB_IRQCHIP
1337 help
1338 This enables support for the GPIOs found on the TC3589X
1339 I/O Expander.
1340
1341config GPIO_TIMBERDALE
1342 bool "Support for timberdale GPIO IP"
1343 depends on MFD_TIMBERDALE
1344 help
1345 Add support for the GPIO IP in the timberdale FPGA.
1346
1347config GPIO_TPS65086
1348 tristate "TI TPS65086 GPO"
1349 depends on MFD_TPS65086
1350 help
1351 This driver supports the GPO on TI TPS65086x PMICs.
1352
1353config GPIO_TPS65218
1354 tristate "TPS65218 GPIO"
1355 depends on MFD_TPS65218
1356 help
1357 Select this option to enable GPIO driver for the TPS65218
1358 chip family.
1359
1360config GPIO_TPS6586X
1361 bool "TPS6586X GPIO"
1362 depends on MFD_TPS6586X
1363 help
1364 Select this option to enable GPIO driver for the TPS6586X
1365 chip family.
1366
1367config GPIO_TPS65910
1368 bool "TPS65910 GPIO"
1369 depends on MFD_TPS65910
1370 help
1371 Select this option to enable GPIO driver for the TPS65910
1372 chip family.
1373
1374config GPIO_TPS65912
1375 tristate "TI TPS65912 GPIO"
1376 depends on MFD_TPS65912
1377 help
1378 This driver supports TPS65912 gpio chip
1379
1380config GPIO_TPS68470
1381 bool "TPS68470 GPIO"
1382 depends on INTEL_SKL_INT3472
1383 help
1384 Select this option to enable GPIO driver for the TPS68470
1385 chip family.
1386 There are 7 GPIOs and few sensor related GPIOs supported
1387 by the TPS68470. While the 7 GPIOs can be configured as
1388 input or output as appropriate, the sensor related GPIOs
1389 are "output only" GPIOs.
1390
1391 This driver config is bool, as the GPIO functionality
1392 of the TPS68470 must be available before dependent
1393 drivers are loaded.
1394
1395config GPIO_TQMX86
1396 tristate "TQ-Systems QTMX86 GPIO"
1397 depends on MFD_TQMX86 || COMPILE_TEST
1398 depends on HAS_IOPORT_MAP
1399 select GPIOLIB_IRQCHIP
1400 help
1401 This driver supports GPIO on the TQMX86 IO controller.
1402
1403config GPIO_TWL4030
1404 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1405 depends on TWL4030_CORE
1406 help
1407 Say yes here to access the GPIO signals of various multi-function
1408 power management chips from Texas Instruments.
1409
1410config GPIO_TWL6040
1411 tristate "TWL6040 GPO"
1412 depends on TWL6040_CORE
1413 help
1414 Say yes here to access the GPO signals of twl6040
1415 audio chip from Texas Instruments.
1416
1417config GPIO_UCB1400
1418 tristate "Philips UCB1400 GPIO"
1419 depends on UCB1400_CORE
1420 help
1421 This enables support for the Philips UCB1400 GPIO pins.
1422 The UCB1400 is an AC97 audio codec.
1423
1424config GPIO_WHISKEY_COVE
1425 tristate "GPIO support for Whiskey Cove PMIC"
1426 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1427 select GPIOLIB_IRQCHIP
1428 help
1429 Support for GPIO pins on Whiskey Cove PMIC.
1430
1431 Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1432 inside.
1433
1434 This driver can also be built as a module. If so, the module will be
1435 called gpio-wcove.
1436
1437config GPIO_WM831X
1438 tristate "WM831x GPIOs"
1439 depends on MFD_WM831X
1440 help
1441 Say yes here to access the GPIO signals of WM831x power management
1442 chips from Wolfson Microelectronics.
1443
1444config GPIO_WM8350
1445 tristate "WM8350 GPIOs"
1446 depends on MFD_WM8350
1447 help
1448 Say yes here to access the GPIO signals of WM8350 power management
1449 chips from Wolfson Microelectronics.
1450
1451config GPIO_WM8994
1452 tristate "WM8994 GPIOs"
1453 depends on MFD_WM8994
1454 help
1455 Say yes here to access the GPIO signals of WM8994 audio hub
1456 CODECs from Wolfson Microelectronics.
1457
1458endmenu
1459
1460menu "PCI GPIO expanders"
1461 depends on PCI
1462
1463config GPIO_AMD8111
1464 tristate "AMD 8111 GPIO driver"
1465 depends on X86 || COMPILE_TEST
1466 depends on HAS_IOPORT_MAP
1467 help
1468 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1469
1470 Note, that usually system firmware/ACPI handles GPIO pins on their
1471 own and users might easily break their systems with uncarefull usage
1472 of this driver!
1473
1474 If unsure, say N
1475
1476config GPIO_BT8XX
1477 tristate "BT8XX GPIO abuser"
1478 depends on VIDEO_BT848=n
1479 help
1480 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1481 as a cheap PCI GPIO card.
1482
1483 This chip can be found on Miro, Hauppauge and STB TV-cards.
1484
1485 The card needs to be physically altered for using it as a
1486 GPIO card. For more information on how to build a GPIO card
1487 from a BT8xx TV card, see the documentation file at
1488 Documentation/driver-api/gpio/bt8xxgpio.rst
1489
1490 If unsure, say N.
1491
1492config GPIO_MERRIFIELD
1493 tristate "Intel Merrifield GPIO support"
1494 depends on X86_INTEL_MID
1495 select GPIOLIB_IRQCHIP
1496 help
1497 Say Y here to support Intel Merrifield GPIO.
1498
1499config GPIO_MLXBF
1500 tristate "Mellanox BlueField SoC GPIO"
1501 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1502 select GPIO_GENERIC
1503 help
1504 Say Y here if you want GPIO support on Mellanox BlueField SoC.
1505
1506config GPIO_MLXBF2
1507 tristate "Mellanox BlueField 2 SoC GPIO"
1508 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1509 select GPIO_GENERIC
1510 help
1511 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC.
1512
1513config GPIO_ML_IOH
1514 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1515 depends on X86 || COMPILE_TEST
1516 select GENERIC_IRQ_CHIP
1517 help
1518 ML7213 is companion chip for Intel Atom E6xx series.
1519 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1520 Hub) which is for IVI(In-Vehicle Infotainment) use.
1521 This driver can access the IOH's GPIO device.
1522
1523config GPIO_PCH
1524 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1525 depends on X86_32 || MIPS || COMPILE_TEST
1526 select GENERIC_IRQ_CHIP
1527 help
1528 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1529 which is an IOH(Input/Output Hub) for x86 embedded processor.
1530 This driver can access PCH GPIO device.
1531
1532 This driver also can be used for LAPIS Semiconductor IOH(Input/
1533 Output Hub), ML7223 and ML7831.
1534 ML7223 IOH is for MP(Media Phone) use.
1535 ML7831 IOH is for general purpose use.
1536 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1537 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1538
1539config GPIO_PCI_IDIO_16
1540 tristate "ACCES PCI-IDIO-16 GPIO support"
1541 select GPIOLIB_IRQCHIP
1542 help
1543 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1544 generated when any of the inputs change state (low to high or high to
1545 low). Input filter control is not supported by this driver, and the
1546 input filters are deactivated by this driver.
1547
1548config GPIO_PCIE_IDIO_24
1549 tristate "ACCES PCIe-IDIO-24 GPIO support"
1550 select GPIOLIB_IRQCHIP
1551 help
1552 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1553 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1554 when any of the inputs change state (low to high or high to low).
1555 Input filter control is not supported by this driver, and the input
1556 filters are deactivated by this driver.
1557
1558config GPIO_RDC321X
1559 tristate "RDC R-321x GPIO support"
1560 select MFD_CORE
1561 select MFD_RDC321X
1562 help
1563 Support for the RDC R321x SoC GPIOs over southbridge
1564 PCI configuration space.
1565
1566config GPIO_SODAVILLE
1567 bool "Intel Sodaville GPIO support"
1568 depends on X86 && OF
1569 select GPIO_GENERIC
1570 select GENERIC_IRQ_CHIP
1571 help
1572 Say Y here to support Intel Sodaville GPIO.
1573
1574endmenu
1575
1576menu "SPI GPIO expanders"
1577 depends on SPI_MASTER
1578
1579config GPIO_74X164
1580 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1581 depends on OF_GPIO
1582 help
1583 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1584 shift registers. This driver can be used to provide access
1585 to more gpio outputs.
1586
1587config GPIO_MAX3191X
1588 tristate "Maxim MAX3191x industrial serializer"
1589 select CRC8
1590 help
1591 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1592 MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1593 chip to make 8 digital 24V inputs available via SPI. Supports
1594 CRC checksums to guard against electromagnetic interference,
1595 as well as undervoltage and overtemperature detection.
1596
1597config GPIO_MAX7301
1598 tristate "Maxim MAX7301 GPIO expander"
1599 select GPIO_MAX730X
1600 help
1601 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1602
1603config GPIO_MC33880
1604 tristate "Freescale MC33880 high-side/low-side switch"
1605 help
1606 SPI driver for Freescale MC33880 high-side/low-side switch.
1607 This provides GPIO interface supporting inputs and outputs.
1608
1609config GPIO_PISOSR
1610 tristate "Generic parallel-in/serial-out shift register"
1611 help
1612 GPIO driver for SPI compatible parallel-in/serial-out shift
1613 registers. These are input only devices.
1614
1615config GPIO_XRA1403
1616 tristate "EXAR XRA1403 16-bit GPIO expander"
1617 select REGMAP_SPI
1618 help
1619 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1620
1621config GPIO_MOXTET
1622 tristate "Turris Mox Moxtet bus GPIO expander"
1623 depends on MOXTET
1624 help
1625 Say yes here if you are building for the Turris Mox router.
1626 This is the driver needed for configuring the GPIOs via the Moxtet
1627 bus. For example the Mox module with SFP cage needs this driver
1628 so that phylink can use corresponding GPIOs.
1629
1630endmenu
1631
1632menu "USB GPIO expanders"
1633 depends on USB
1634
1635config GPIO_VIPERBOARD
1636 tristate "Viperboard GPIO a & b support"
1637 depends on MFD_VIPERBOARD
1638 help
1639 Say yes here to access the GPIO signals of Nano River
1640 Technologies Viperboard. There are two GPIO chips on the
1641 board: gpioa and gpiob.
1642 See viperboard API specification and Nano
1643 River Tech's viperboard.h for detailed meaning
1644 of the module parameters.
1645
1646endmenu
1647
1648menu "Virtual GPIO drivers"
1649
1650config GPIO_AGGREGATOR
1651 tristate "GPIO Aggregator"
1652 help
1653 Say yes here to enable the GPIO Aggregator, which provides a way to
1654 aggregate existing GPIO lines into a new virtual GPIO chip.
1655 This can serve the following purposes:
1656 - Assign permissions for a collection of GPIO lines to a user,
1657 - Export a collection of GPIO lines to a virtual machine,
1658 - Provide a generic driver for a GPIO-operated device in an
1659 industrial control context, to be operated from userspace using
1660 the GPIO chardev interface.
1661
1662config GPIO_MOCKUP
1663 tristate "GPIO Testing Driver"
1664 select IRQ_SIM
1665 help
1666 This enables GPIO Testing driver, which provides a way to test GPIO
1667 subsystem through sysfs (or char device) and debugfs.
1668 User could use it through the script in
1669 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1670 it.
1671
1672endmenu
1673
1674endif