Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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)"
63 depends on SYSFS
64 help
65 Say Y here to add a sysfs interface for GPIOs.
66
67 This is mostly useful to work around omissions in a system's
68 kernel support. Those are common in custom and semicustom
69 hardware assembled using standard kernels with a minimum of
70 custom patches. In those cases, userspace code may import
71 a given GPIO from the kernel, if no kernel driver requested it.
72
73 Kernel drivers may also request that a particular GPIO be
74 exported to userspace; this can be useful when debugging.
75
76config GPIO_GENERIC
77 depends on HAS_IOMEM # Only for IOMEM drivers
78 tristate
79
80# put drivers in the right section, in alphabetical order
81
82# This symbol is selected by both I2C and SPI expanders
83config GPIO_MAX730X
84 tristate
85
86menu "Memory mapped GPIO drivers"
87 depends on HAS_IOMEM
88
89config GPIO_74XX_MMIO
90 tristate "GPIO driver for 74xx-ICs with MMIO access"
91 depends on OF_GPIO
92 select GPIO_GENERIC
93 help
94 Say yes here to support GPIO functionality for 74xx-compatible ICs
95 with MMIO access. Compatible models include:
96 1 bit: 741G125 (Input), 741G74 (Output)
97 2 bits: 742G125 (Input), 7474 (Output)
98 4 bits: 74125 (Input), 74175 (Output)
99 6 bits: 74365 (Input), 74174 (Output)
100 8 bits: 74244 (Input), 74273 (Output)
101 16 bits: 741624 (Input), 7416374 (Output)
102
103config GPIO_ALTERA
104 tristate "Altera GPIO"
105 depends on OF_GPIO
106 select GPIOLIB_IRQCHIP
107 help
108 Say Y or M here to build support for the Altera PIO device.
109
110 If driver is built as a module it will be called gpio-altera.
111
112config GPIO_AMDPT
113 tristate "AMD Promontory GPIO support"
114 depends on ACPI
115 select GPIO_GENERIC
116 help
117 driver for GPIO functionality on Promontory IOHub
118 Require ACPI ASL code to enumerate as a platform device.
119
120config GPIO_ASPEED
121 tristate "Aspeed GPIO support"
122 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
123 select GPIOLIB_IRQCHIP
124 help
125 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
126
127config GPIO_ATH79
128 tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
129 default y if ATH79
130 depends on ATH79 || COMPILE_TEST
131 select GPIO_GENERIC
132 select GPIOLIB_IRQCHIP
133 help
134 Select this option to enable GPIO driver for
135 Atheros AR71XX/AR724X/AR913X SoC devices.
136
137config GPIO_RASPBERRYPI_EXP
138 tristate "Raspberry Pi 3 GPIO Expander"
139 default RASPBERRYPI_FIRMWARE
140 depends on OF_GPIO
141 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
142 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
143 depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
144 help
145 Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
146 the firmware mailbox to communicate with VideoCore on BCM283x chips.
147
148config GPIO_BCM_KONA
149 bool "Broadcom Kona GPIO"
150 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
151 help
152 Turn on GPIO support for Broadcom "Kona" chips.
153
154config GPIO_BRCMSTB
155 tristate "BRCMSTB GPIO support"
156 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
157 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
158 select GPIO_GENERIC
159 select IRQ_DOMAIN
160 help
161 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
162
163config GPIO_CADENCE
164 tristate "Cadence GPIO support"
165 depends on OF_GPIO
166 select GPIO_GENERIC
167 select GPIOLIB_IRQCHIP
168 help
169 Say yes here to enable support for Cadence GPIO controller.
170
171config GPIO_CLPS711X
172 tristate "CLPS711X GPIO support"
173 depends on ARCH_CLPS711X || COMPILE_TEST
174 select GPIO_GENERIC
175 help
176 Say yes here to support GPIO on CLPS711X SoCs.
177
178config GPIO_DAVINCI
179 bool "TI Davinci/Keystone GPIO support"
180 default y if ARCH_DAVINCI
181 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
182 help
183 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
184
185config GPIO_DWAPB
186 tristate "Synopsys DesignWare APB GPIO driver"
187 select GPIO_GENERIC
188 select GENERIC_IRQ_CHIP
189 help
190 Say Y or M here to build support for the Synopsys DesignWare APB
191 GPIO block.
192
193config GPIO_EIC_SPRD
194 tristate "Spreadtrum EIC support"
195 depends on ARCH_SPRD || COMPILE_TEST
196 depends on OF_GPIO
197 select GPIOLIB_IRQCHIP
198 help
199 Say yes here to support Spreadtrum EIC device.
200
201config GPIO_EM
202 tristate "Emma Mobile GPIO"
203 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
204 help
205 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
206
207config GPIO_EP93XX
208 def_bool y
209 depends on ARCH_EP93XX
210 select GPIO_GENERIC
211 select GPIOLIB_IRQCHIP
212
213config GPIO_EXAR
214 tristate "Support for GPIO pins on XR17V352/354/358"
215 depends on SERIAL_8250_EXAR
216 help
217 Selecting this option will enable handling of GPIO pins present
218 on Exar XR17V352/354/358 chips.
219
220config GPIO_GE_FPGA
221 bool "GE FPGA based GPIO"
222 depends on GE_FPGA
223 select GPIO_GENERIC
224 help
225 Support for common GPIO functionality provided on some GE Single Board
226 Computers.
227
228 This driver provides basic support (configure as input or output, read
229 and write pin state) for GPIO implemented in a number of GE single
230 board computers.
231
232config GPIO_FTGPIO010
233 bool "Faraday FTGPIO010 GPIO"
234 depends on OF_GPIO
235 select GPIO_GENERIC
236 select GPIOLIB_IRQCHIP
237 default (ARCH_GEMINI || ARCH_MOXART)
238 help
239 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
240 Cortina systems Gemini platforms, Moxa ART and others.
241
242config GPIO_GENERIC_PLATFORM
243 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
244 select GPIO_GENERIC
245 help
246 Say yes here to support basic platform_device memory-mapped GPIO controllers.
247
248config GPIO_GRGPIO
249 tristate "Aeroflex Gaisler GRGPIO support"
250 depends on OF_GPIO
251 select GPIO_GENERIC
252 select IRQ_DOMAIN
253 help
254 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
255 VHDL IP core library.
256
257config GPIO_HLWD
258 tristate "Nintendo Wii (Hollywood) GPIO"
259 depends on OF_GPIO
260 select GPIO_GENERIC
261 select GPIOLIB_IRQCHIP
262 help
263 Select this to support the GPIO controller of the Nintendo Wii.
264
265 If unsure, say N.
266
267config GPIO_ICH
268 tristate "Intel ICH GPIO"
269 depends on PCI && X86
270 select MFD_CORE
271 select LPC_ICH
272 help
273 Say yes here to support the GPIO functionality of a number of Intel
274 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
275 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
276 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
277
278 If unsure, say N.
279
280config GPIO_IOP
281 tristate "Intel IOP GPIO"
282 depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST
283 select GPIO_GENERIC
284 help
285 Say yes here to support the GPIO functionality of a number of Intel
286 IOP32X or IOP33X.
287
288 If unsure, say N.
289
290config GPIO_IXP4XX
291 bool "Intel IXP4xx GPIO"
292 depends on ARM # For <asm/mach-types.h>
293 depends on ARCH_IXP4XX
294 select GPIO_GENERIC
295 select IRQ_DOMAIN
296 select IRQ_DOMAIN_HIERARCHY
297 help
298 Say yes here to support the GPIO functionality of a number of Intel
299 IXP4xx series of chips.
300
301 If unsure, say N.
302
303config GPIO_LOONGSON
304 bool "Loongson-2/3 GPIO support"
305 depends on CPU_LOONGSON2 || CPU_LOONGSON3
306 help
307 driver for GPIO functionality on Loongson-2F/3A/3B processors.
308
309config GPIO_LPC18XX
310 tristate "NXP LPC18XX/43XX GPIO support"
311 default y if ARCH_LPC18XX
312 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
313 select IRQ_DOMAIN_HIERARCHY
314 help
315 Select this option to enable GPIO driver for
316 NXP LPC18XX/43XX devices.
317
318config GPIO_LYNXPOINT
319 tristate "Intel Lynxpoint GPIO support"
320 depends on ACPI && X86
321 select GPIOLIB_IRQCHIP
322 help
323 driver for GPIO functionality on Intel Lynxpoint PCH chipset
324 Requires ACPI device enumeration code to set up a platform device.
325
326config GPIO_MB86S7X
327 tristate "GPIO support for Fujitsu MB86S7x Platforms"
328 help
329 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
330
331config GPIO_MENZ127
332 tristate "MEN 16Z127 GPIO support"
333 depends on MCB
334 select GPIO_GENERIC
335 help
336 Say yes here to support the MEN 16Z127 GPIO Controller
337
338config GPIO_MM_LANTIQ
339 bool "Lantiq Memory mapped GPIOs"
340 depends on LANTIQ && SOC_XWAY
341 help
342 This enables support for memory mapped GPIOs on the External Bus Unit
343 (EBU) found on Lantiq SoCs. The gpios are output only as they are
344 created by attaching a 16bit latch to the bus.
345
346config GPIO_MPC5200
347 def_bool y
348 depends on PPC_MPC52xx
349
350config GPIO_MPC8XXX
351 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
352 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
353 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
354 COMPILE_TEST
355 select GPIO_GENERIC
356 select IRQ_DOMAIN
357 help
358 Say Y here if you're going to use hardware that connects to the
359 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
360
361config GPIO_MT7621
362 bool "Mediatek MT7621 GPIO Support"
363 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
364 depends on OF_GPIO
365 select GPIO_GENERIC
366 select GPIOLIB_IRQCHIP
367 help
368 Say yes here to support the Mediatek MT7621 SoC GPIO device
369
370config GPIO_MVEBU
371 def_bool y
372 depends on PLAT_ORION || ARCH_MVEBU
373 depends on OF_GPIO
374 select GENERIC_IRQ_CHIP
375 select REGMAP_MMIO
376
377config GPIO_MXC
378 def_bool y
379 depends on ARCH_MXC
380 select GPIO_GENERIC
381 select GENERIC_IRQ_CHIP
382
383config GPIO_MXS
384 def_bool y
385 depends on ARCH_MXS
386 select GPIO_GENERIC
387 select GENERIC_IRQ_CHIP
388
389config GPIO_OCTEON
390 tristate "Cavium OCTEON GPIO"
391 depends on GPIOLIB && CAVIUM_OCTEON_SOC
392 default y
393 help
394 Say yes here to support the on-chip GPIO lines on the OCTEON
395 family of SOCs.
396
397config GPIO_OMAP
398 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
399 default y if ARCH_OMAP
400 depends on ARM
401 select GENERIC_IRQ_CHIP
402 select GPIOLIB_IRQCHIP
403 help
404 Say yes here to enable GPIO support for TI OMAP SoCs.
405
406config GPIO_PL061
407 bool "PrimeCell PL061 GPIO support"
408 depends on ARM_AMBA
409 select IRQ_DOMAIN
410 select GPIOLIB_IRQCHIP
411 help
412 Say yes here to support the PrimeCell PL061 GPIO device
413
414config GPIO_PMIC_EIC_SPRD
415 tristate "Spreadtrum PMIC EIC support"
416 depends on MFD_SC27XX_PMIC || COMPILE_TEST
417 depends on OF_GPIO
418 select GPIOLIB_IRQCHIP
419 help
420 Say yes here to support Spreadtrum PMIC EIC device.
421
422config GPIO_PXA
423 bool "PXA GPIO support"
424 depends on ARCH_PXA || ARCH_MMP
425 help
426 Say yes here to support the PXA GPIO device
427
428config GPIO_RCAR
429 tristate "Renesas R-Car GPIO"
430 depends on ARCH_RENESAS || COMPILE_TEST
431 select GPIOLIB_IRQCHIP
432 help
433 Say yes here to support GPIO on Renesas R-Car SoCs.
434
435config GPIO_REG
436 bool
437 help
438 A 32-bit single register GPIO fixed in/out implementation. This
439 can be used to represent any register as a set of GPIO signals.
440
441config GPIO_SAMA5D2_PIOBU
442 tristate "SAMA5D2 PIOBU GPIO support"
443 depends on MFD_SYSCON
444 depends on OF_GPIO
445 select GPIO_SYSCON
446 help
447 Say yes here to use the PIOBU pins as GPIOs.
448
449 PIOBU pins on the SAMA5D2 can be used as GPIOs.
450 The difference from regular GPIOs is that they
451 maintain their value during backup/self-refresh.
452
453config GPIO_SIOX
454 tristate "SIOX GPIO support"
455 depends on SIOX
456 select GPIOLIB_IRQCHIP
457 help
458 Say yes here to support SIOX I/O devices. These are units connected
459 via a SIOX bus and have a number of fixed-direction I/O lines.
460
461config GPIO_SNPS_CREG
462 bool "Synopsys GPIO via CREG (Control REGisters) driver"
463 depends on ARC || COMPILE_TEST
464 depends on OF_GPIO
465 help
466 This driver supports GPIOs via CREG on various Synopsys SoCs.
467 This is a single-register MMIO GPIO driver for complex cases
468 where only several fields in register belong to GPIO lines and
469 each GPIO line owns a field with different length and on/off value.
470
471config GPIO_SPEAR_SPICS
472 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
473 depends on PLAT_SPEAR
474 select GENERIC_IRQ_CHIP
475 help
476 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
477
478config GPIO_SPRD
479 tristate "Spreadtrum GPIO support"
480 depends on ARCH_SPRD || COMPILE_TEST
481 depends on OF_GPIO
482 select GPIOLIB_IRQCHIP
483 help
484 Say yes here to support Spreadtrum GPIO device.
485
486config GPIO_STA2X11
487 bool "STA2x11/ConneXt GPIO support"
488 depends on MFD_STA2X11
489 select GENERIC_IRQ_CHIP
490 help
491 Say yes here to support the STA2x11/ConneXt GPIO device.
492 The GPIO module has 128 GPIO pins with alternate functions.
493
494config GPIO_STP_XWAY
495 bool "XWAY STP GPIOs"
496 depends on SOC_XWAY
497 help
498 This enables support for the Serial To Parallel (STP) unit found on
499 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
500 that can be up to 24 bit. This peripheral is aimed at driving leds.
501 Some of the gpios/leds can be auto updated by the soc with dsl and
502 phy status.
503
504config GPIO_SYSCON
505 tristate "GPIO based on SYSCON"
506 depends on MFD_SYSCON && OF
507 help
508 Say yes here to support GPIO functionality though SYSCON driver.
509
510config GPIO_TB10X
511 bool
512 select GPIO_GENERIC
513 select GENERIC_IRQ_CHIP
514 select OF_GPIO
515
516config GPIO_TEGRA
517 bool "NVIDIA Tegra GPIO support"
518 default ARCH_TEGRA
519 depends on ARCH_TEGRA || COMPILE_TEST
520 depends on OF_GPIO
521 help
522 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
523
524config GPIO_TEGRA186
525 tristate "NVIDIA Tegra186 GPIO support"
526 default ARCH_TEGRA_186_SOC
527 depends on ARCH_TEGRA_186_SOC || COMPILE_TEST
528 depends on OF_GPIO
529 select GPIOLIB_IRQCHIP
530 help
531 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
532
533config GPIO_TS4800
534 tristate "TS-4800 DIO blocks and compatibles"
535 depends on OF_GPIO
536 depends on SOC_IMX51 || COMPILE_TEST
537 select GPIO_GENERIC
538 help
539 This driver support TS-4800 FPGA GPIO controllers.
540
541config GPIO_THUNDERX
542 tristate "Cavium ThunderX/OCTEON-TX GPIO"
543 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
544 depends on PCI_MSI
545 select IRQ_DOMAIN_HIERARCHY
546 select IRQ_FASTEOI_HIERARCHY_HANDLERS
547 help
548 Say yes here to support the on-chip GPIO lines on the ThunderX
549 and OCTEON-TX families of SoCs.
550
551config GPIO_UNIPHIER
552 tristate "UniPhier GPIO support"
553 depends on ARCH_UNIPHIER || COMPILE_TEST
554 depends on OF_GPIO
555 select IRQ_DOMAIN_HIERARCHY
556 help
557 Say yes here to support UniPhier GPIOs.
558
559config GPIO_VF610
560 def_bool y
561 depends on ARCH_MXC && SOC_VF610
562 select GPIOLIB_IRQCHIP
563 help
564 Say yes here to support Vybrid vf610 GPIOs.
565
566config GPIO_VR41XX
567 tristate "NEC VR4100 series General-purpose I/O Uint support"
568 depends on CPU_VR41XX
569 help
570 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
571
572config GPIO_VX855
573 tristate "VIA VX855/VX875 GPIO"
574 depends on (X86 || COMPILE_TEST) && PCI
575 select MFD_CORE
576 select MFD_VX855
577 help
578 Support access to the VX855/VX875 GPIO lines through the gpio library.
579
580 This driver provides common support for accessing the device,
581 additional drivers must be enabled in order to use the
582 functionality of the device.
583
584config GPIO_XGENE
585 bool "APM X-Gene GPIO controller support"
586 depends on ARM64 && OF_GPIO
587 help
588 This driver is to support the GPIO block within the APM X-Gene SoC
589 platform's generic flash controller. The GPIO pins are muxed with
590 the generic flash controller's address and data pins. Say yes
591 here to enable the GFC GPIO functionality.
592
593config GPIO_XGENE_SB
594 tristate "APM X-Gene GPIO standby controller support"
595 depends on ARCH_XGENE && OF_GPIO
596 select GPIO_GENERIC
597 select GPIOLIB_IRQCHIP
598 select IRQ_DOMAIN_HIERARCHY
599 help
600 This driver supports the GPIO block within the APM X-Gene
601 Standby Domain. Say yes here to enable the GPIO functionality.
602
603config GPIO_XILINX
604 tristate "Xilinx GPIO support"
605 depends on OF_GPIO
606 help
607 Say yes here to support the Xilinx FPGA GPIO device
608
609config GPIO_XLP
610 tristate "Netlogic XLP GPIO support"
611 depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
612 select GPIOLIB_IRQCHIP
613 help
614 This driver provides support for GPIO interface on Netlogic XLP MIPS64
615 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
616 XLP9XX and XLP5XX. The same GPIO controller block is also present in
617 Cavium's ThunderX2 CN99XX SoCs.
618
619 If unsure, say N.
620
621config GPIO_XTENSA
622 bool "Xtensa GPIO32 support"
623 depends on XTENSA
624 depends on HAVE_XTENSA_GPIO32
625 depends on !SMP
626 help
627 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
628 and EXPSTATE (output) ports
629
630config GPIO_ZEVIO
631 bool "LSI ZEVIO SoC memory mapped GPIOs"
632 depends on ARM && OF_GPIO
633 help
634 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
635
636config GPIO_ZYNQ
637 tristate "Xilinx Zynq GPIO support"
638 depends on ARCH_ZYNQ || ARCH_ZYNQMP
639 select GPIOLIB_IRQCHIP
640 help
641 Say yes here to support Xilinx Zynq GPIO controller.
642
643config GPIO_ZX
644 bool "ZTE ZX GPIO support"
645 depends on ARCH_ZX || COMPILE_TEST
646 select GPIOLIB_IRQCHIP
647 help
648 Say yes here to support the GPIO device on ZTE ZX SoCs.
649
650config GPIO_LOONGSON1
651 tristate "Loongson1 GPIO support"
652 depends on MACH_LOONGSON32
653 select GPIO_GENERIC
654 help
655 Say Y or M here to support GPIO on Loongson1 SoCs.
656
657config GPIO_AMD_FCH
658 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
659 help
660 This option enables driver for GPIO on AMDs Fusion Controller Hub,
661 as found on G-series SOCs (eg. GX-412TC)
662
663 Note: This driver doesn't registers itself automatically, as it
664 needs to be provided with platform specific configuration.
665 (See eg. CONFIG_PCENGINES_APU2.)
666endmenu
667
668menu "Port-mapped I/O GPIO drivers"
669 depends on X86 # Unconditional I/O space access
670
671config GPIO_104_DIO_48E
672 tristate "ACCES 104-DIO-48E GPIO support"
673 depends on PC104
674 select ISA_BUS_API
675 select GPIOLIB_IRQCHIP
676 help
677 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
678 104-DIO-24E). The base port addresses for the devices may be
679 configured via the base module parameter. The interrupt line numbers
680 for the devices may be configured via the irq module parameter.
681
682config GPIO_104_IDIO_16
683 tristate "ACCES 104-IDIO-16 GPIO support"
684 depends on PC104
685 select ISA_BUS_API
686 select GPIOLIB_IRQCHIP
687 help
688 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
689 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
690 base port addresses for the devices may be configured via the base
691 module parameter. The interrupt line numbers for the devices may be
692 configured via the irq module parameter.
693
694config GPIO_104_IDI_48
695 tristate "ACCES 104-IDI-48 GPIO support"
696 depends on PC104
697 select ISA_BUS_API
698 select GPIOLIB_IRQCHIP
699 help
700 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
701 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
702 the devices may be configured via the base module parameter. The
703 interrupt line numbers for the devices may be configured via the irq
704 module parameter.
705
706config GPIO_F7188X
707 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
708 help
709 This option enables support for GPIOs found on Fintek Super-I/O
710 chips F71869, F71869A, F71882FG, F71889F and F81866.
711
712 To compile this driver as a module, choose M here: the module will
713 be called f7188x-gpio.
714
715config GPIO_GPIO_MM
716 tristate "Diamond Systems GPIO-MM GPIO support"
717 depends on PC104
718 select ISA_BUS_API
719 help
720 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
721
722 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
723 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
724 support for these 48 channels of digital I/O.
725
726 The base port addresses for the devices may be configured via the base
727 array module parameter.
728
729config GPIO_IT87
730 tristate "IT87xx GPIO support"
731 help
732 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
733
734 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
735 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
736 well.
737
738 To compile this driver as a module, choose M here: the module will
739 be called gpio_it87
740
741config GPIO_SCH
742 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
743 depends on (X86 || COMPILE_TEST) && PCI
744 select MFD_CORE
745 select LPC_SCH
746 help
747 Say yes here to support GPIO interface on Intel Poulsbo SCH,
748 Intel Tunnel Creek processor, Intel Centerton processor or
749 Intel Quark X1000 SoC.
750
751 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
752 powered by the core power rail and are turned off during sleep
753 modes (S3 and higher). The remaining four GPIOs are powered by
754 the Intel SCH suspend power supply. These GPIOs remain
755 active during S3. The suspend powered GPIOs can be used to wake the
756 system from the Suspend-to-RAM state.
757
758 The Intel Tunnel Creek processor has 5 GPIOs powered by the
759 core power rail and 9 from suspend power supply.
760
761 The Intel Centerton processor has a total of 30 GPIO pins.
762 Twenty-one are powered by the core power rail and 9 from the
763 suspend power supply.
764
765 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
766 power well and 6 from the suspend power well.
767
768config GPIO_SCH311X
769 tristate "SMSC SCH311x SuperI/O GPIO"
770 help
771 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
772 SCH3116 "Super I/O" chipsets.
773
774 To compile this driver as a module, choose M here: the module will
775 be called gpio-sch311x.
776
777config GPIO_TS5500
778 tristate "TS-5500 DIO blocks and compatibles"
779 depends on TS5500 || COMPILE_TEST
780 help
781 This driver supports Digital I/O exposed by pin blocks found on some
782 Technologic Systems platforms. It includes, but is not limited to, 3
783 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
784 LCD port.
785
786config GPIO_WINBOND
787 tristate "Winbond Super I/O GPIO support"
788 select ISA_BUS_API
789 help
790 This option enables support for GPIOs found on Winbond Super I/O
791 chips.
792 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
793 supported.
794
795 You will need to provide a module parameter "gpios", or a
796 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
797 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
798
799 To compile this driver as a module, choose M here: the module will
800 be called gpio-winbond.
801
802config GPIO_WS16C48
803 tristate "WinSystems WS16C48 GPIO support"
804 select ISA_BUS_API
805 select GPIOLIB_IRQCHIP
806 help
807 Enables GPIO support for the WinSystems WS16C48. The base port
808 addresses for the devices may be configured via the base module
809 parameter. The interrupt line numbers for the devices may be
810 configured via the irq module parameter.
811
812endmenu
813
814menu "I2C GPIO expanders"
815 depends on I2C
816
817config GPIO_ADP5588
818 tristate "ADP5588 I2C GPIO expander"
819 help
820 This option enables support for 18 GPIOs found
821 on Analog Devices ADP5588 GPIO Expanders.
822
823config GPIO_ADP5588_IRQ
824 bool "Interrupt controller support for ADP5588"
825 depends on GPIO_ADP5588=y
826 select GPIOLIB_IRQCHIP
827 help
828 Say yes here to enable the adp5588 to be used as an interrupt
829 controller. It requires the driver to be built in the kernel.
830
831config GPIO_ADNP
832 tristate "Avionic Design N-bit GPIO expander"
833 depends on OF_GPIO
834 select GPIOLIB_IRQCHIP
835 help
836 This option enables support for N GPIOs found on Avionic Design
837 I2C GPIO expanders. The register space will be extended by powers
838 of two, so the controller will need to accommodate for that. For
839 example: if a controller provides 48 pins, 6 registers will be
840 enough to represent all pins, but the driver will assume a
841 register layout for 64 pins (8 registers).
842
843config GPIO_GW_PLD
844 tristate "Gateworks PLD GPIO Expander"
845 depends on OF_GPIO
846 help
847 Say yes here to provide access to the Gateworks I2C PLD GPIO
848 Expander. This is used at least on the Cambria GW2358-4.
849
850config GPIO_MAX7300
851 tristate "Maxim MAX7300 GPIO expander"
852 select GPIO_MAX730X
853 help
854 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
855
856config GPIO_MAX732X
857 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
858 help
859 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
860 Port Expanders. Each IO port on these chips has a fixed role of
861 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
862 Input and Output (designed by 'P'). The combinations are listed
863 below:
864
865 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
866 max7322 (4I4O), max7323 (4P4O)
867
868 16 bits: max7324 (8I8O), max7325 (8P8O),
869 max7326 (4I12O), max7327 (4P12O)
870
871 Board setup code must specify the model to use, and the start
872 number for these GPIOs.
873
874config GPIO_MAX732X_IRQ
875 bool "Interrupt controller support for MAX732x"
876 depends on GPIO_MAX732X=y
877 select GPIOLIB_IRQCHIP
878 help
879 Say yes here to enable the max732x to be used as an interrupt
880 controller. It requires the driver to be built in the kernel.
881
882config GPIO_MC9S08DZ60
883 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
884 depends on I2C=y && MACH_MX35_3DS
885 help
886 Select this to enable the MC9S08DZ60 GPIO driver
887
888config GPIO_PCA953X
889 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
890 select REGMAP_I2C
891 help
892 Say yes here to provide access to several register-oriented
893 SMBus I/O expanders, made mostly by NXP or TI. Compatible
894 models include:
895
896 4 bits: pca9536, pca9537
897
898 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
899 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
900
901 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
902 tca6416
903
904 24 bits: tca6424
905
906 40 bits: pca9505, pca9698
907
908config GPIO_PCA953X_IRQ
909 bool "Interrupt controller support for PCA953x"
910 depends on GPIO_PCA953X=y
911 select GPIOLIB_IRQCHIP
912 help
913 Say yes here to enable the pca953x to be used as an interrupt
914 controller. It requires the driver to be built in the kernel.
915
916config GPIO_PCF857X
917 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
918 select GPIOLIB_IRQCHIP
919 select IRQ_DOMAIN
920 help
921 Say yes here to provide access to most "quasi-bidirectional" I2C
922 GPIO expanders used for additional digital outputs or inputs.
923 Most of these parts are from NXP, though TI is a second source for
924 some of them. Compatible models include:
925
926 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
927 pca9670, pca9672, pca9674, pca9674a,
928 max7328, max7329
929
930 16 bits: pcf8575, pcf8575c, pca8575,
931 pca9671, pca9673, pca9675
932
933 Your board setup code will need to declare the expanders in
934 use, and assign numbers to the GPIOs they expose. Those GPIOs
935 can then be used from drivers and other kernel code, just like
936 other GPIOs, but only accessible from task contexts.
937
938 This driver provides an in-kernel interface to those GPIOs using
939 platform-neutral GPIO calls.
940
941config GPIO_TPIC2810
942 tristate "TPIC2810 8-Bit I2C GPO expander"
943 help
944 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
945
946 To compile this driver as a module, choose M here: the module will
947 be called gpio-tpic2810.
948
949config GPIO_TS4900
950 tristate "Technologic Systems FPGA I2C GPIO"
951 depends on SOC_IMX6 || COMPILE_TEST
952 select REGMAP_I2C
953 help
954 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
955 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
956
957endmenu
958
959menu "MFD GPIO expanders"
960
961config GPIO_ADP5520
962 tristate "GPIO Support for ADP5520 PMIC"
963 depends on PMIC_ADP5520
964 help
965 This option enables support for on-chip GPIO found
966 on Analog Devices ADP5520 PMICs.
967
968config GPIO_ALTERA_A10SR
969 tristate "Altera Arria10 System Resource GPIO"
970 depends on MFD_ALTERA_A10SR
971 help
972 Driver for Arria10 Development Kit GPIO expansion which
973 includes reads of pushbuttons and DIP switches as well
974 as writes to LEDs.
975
976config GPIO_ARIZONA
977 tristate "Wolfson Microelectronics Arizona class devices"
978 depends on MFD_ARIZONA
979 help
980 Support for GPIOs on Wolfson Arizona class devices.
981
982config GPIO_BD9571MWV
983 tristate "ROHM BD9571 GPIO support"
984 depends on MFD_BD9571MWV
985 help
986 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
987 available on the ROHM PMIC in total, both of which can also
988 generate interrupts.
989
990 This driver can also be built as a module. If so, the module
991 will be called gpio-bd9571mwv.
992
993config GPIO_CRYSTAL_COVE
994 tristate "GPIO support for Crystal Cove PMIC"
995 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
996 select GPIOLIB_IRQCHIP
997 help
998 Support for GPIO pins on Crystal Cove PMIC.
999
1000 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
1001 inside.
1002
1003 This driver can also be built as a module. If so, the module will be
1004 called gpio-crystalcove.
1005
1006config GPIO_CS5535
1007 tristate "AMD CS5535/CS5536 GPIO support"
1008 depends on X86 || MIPS || COMPILE_TEST
1009 depends on MFD_CS5535
1010 help
1011 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1012 can be used for quite a number of things. The CS5535/6 is found on
1013 AMD Geode and Lemote Yeeloong devices.
1014
1015 If unsure, say N.
1016
1017config GPIO_DA9052
1018 tristate "Dialog DA9052 GPIO"
1019 depends on PMIC_DA9052
1020 help
1021 Say yes here to enable the GPIO driver for the DA9052 chip.
1022
1023config GPIO_DA9055
1024 tristate "Dialog Semiconductor DA9055 GPIO"
1025 depends on MFD_DA9055
1026 help
1027 Say yes here to enable the GPIO driver for the DA9055 chip.
1028
1029 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1030 be controller by this driver.
1031
1032 If driver is built as a module it will be called gpio-da9055.
1033
1034config GPIO_DLN2
1035 tristate "Diolan DLN2 GPIO support"
1036 depends on MFD_DLN2
1037 select GPIOLIB_IRQCHIP
1038
1039 help
1040 Select this option to enable GPIO driver for the Diolan DLN2
1041 board.
1042
1043 This driver can also be built as a module. If so, the module
1044 will be called gpio-dln2.
1045
1046config HTC_EGPIO
1047 bool "HTC EGPIO support"
1048 depends on GPIOLIB && ARM
1049 help
1050 This driver supports the CPLD egpio chip present on
1051 several HTC phones. It provides basic support for input
1052 pins, output pins, and irqs.
1053
1054config GPIO_JANZ_TTL
1055 tristate "Janz VMOD-TTL Digital IO Module"
1056 depends on MFD_JANZ_CMODIO
1057 help
1058 This enables support for the Janz VMOD-TTL Digital IO module.
1059 This driver provides support for driving the pins in output
1060 mode only. Input mode is not supported.
1061
1062config GPIO_KEMPLD
1063 tristate "Kontron ETX / COMexpress GPIO"
1064 depends on MFD_KEMPLD
1065 help
1066 This enables support for the PLD GPIO interface on some Kontron ETX
1067 and COMexpress (ETXexpress) modules.
1068
1069 This driver can also be built as a module. If so, the module will be
1070 called gpio-kempld.
1071
1072config GPIO_LP3943
1073 tristate "TI/National Semiconductor LP3943 GPIO expander"
1074 depends on MFD_LP3943
1075 help
1076 GPIO driver for LP3943 MFD.
1077 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1078 Open drain outputs are required for this usage.
1079
1080config GPIO_LP873X
1081 tristate "TI LP873X GPO"
1082 depends on MFD_TI_LP873X
1083 help
1084 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1085 on LP873X PMICs.
1086
1087 This driver can also be built as a module. If so, the module will be
1088 called gpio-lp873x.
1089
1090config GPIO_LP87565
1091 tristate "TI LP87565 GPIO"
1092 depends on MFD_TI_LP87565
1093 help
1094 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1095 on LP87565 PMICs.
1096
1097 This driver can also be built as a module. If so, the module will be
1098 called gpio-lp87565.
1099
1100config GPIO_MADERA
1101 tristate "Cirrus Logic Madera class codecs"
1102 depends on PINCTRL_MADERA
1103 help
1104 Support for GPIOs on Cirrus Logic Madera class codecs.
1105
1106config GPIO_MAX77620
1107 tristate "GPIO support for PMIC MAX77620 and MAX20024"
1108 depends on MFD_MAX77620
1109 help
1110 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1111 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1112 driver also provides interrupt support for each of the gpios.
1113 Say yes here to enable the max77620 to be used as gpio controller.
1114
1115config GPIO_MAX77650
1116 tristate "Maxim MAX77650/77651 GPIO support"
1117 depends on MFD_MAX77650
1118 help
1119 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1120 These chips have a single pin that can be configured as GPIO.
1121
1122config GPIO_MSIC
1123 bool "Intel MSIC mixed signal gpio support"
1124 depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
1125 help
1126 Enable support for GPIO on intel MSIC controllers found in
1127 intel MID devices
1128
1129config GPIO_PALMAS
1130 bool "TI PALMAS series PMICs GPIO"
1131 depends on MFD_PALMAS
1132 help
1133 Select this option to enable GPIO driver for the TI PALMAS
1134 series chip family.
1135
1136config GPIO_RC5T583
1137 bool "RICOH RC5T583 GPIO"
1138 depends on MFD_RC5T583
1139 help
1140 Select this option to enable GPIO driver for the Ricoh RC5T583
1141 chip family.
1142 This driver provides the support for driving/reading the gpio pins
1143 of RC5T583 device through standard gpio library.
1144
1145config GPIO_STMPE
1146 bool "STMPE GPIOs"
1147 depends on MFD_STMPE
1148 depends on OF_GPIO
1149 select GPIOLIB_IRQCHIP
1150 help
1151 This enables support for the GPIOs found on the STMPE I/O
1152 Expanders.
1153
1154config GPIO_TC3589X
1155 bool "TC3589X GPIOs"
1156 depends on MFD_TC3589X
1157 depends on OF_GPIO
1158 select GPIOLIB_IRQCHIP
1159 help
1160 This enables support for the GPIOs found on the TC3589X
1161 I/O Expander.
1162
1163config GPIO_TIMBERDALE
1164 bool "Support for timberdale GPIO IP"
1165 depends on MFD_TIMBERDALE
1166 ---help---
1167 Add support for the GPIO IP in the timberdale FPGA.
1168
1169config GPIO_TPS65086
1170 tristate "TI TPS65086 GPO"
1171 depends on MFD_TPS65086
1172 help
1173 This driver supports the GPO on TI TPS65086x PMICs.
1174
1175config GPIO_TPS65218
1176 tristate "TPS65218 GPIO"
1177 depends on MFD_TPS65218
1178 help
1179 Select this option to enable GPIO driver for the TPS65218
1180 chip family.
1181
1182config GPIO_TPS6586X
1183 bool "TPS6586X GPIO"
1184 depends on MFD_TPS6586X
1185 help
1186 Select this option to enable GPIO driver for the TPS6586X
1187 chip family.
1188
1189config GPIO_TPS65910
1190 bool "TPS65910 GPIO"
1191 depends on MFD_TPS65910
1192 help
1193 Select this option to enable GPIO driver for the TPS65910
1194 chip family.
1195
1196config GPIO_TPS65912
1197 tristate "TI TPS65912 GPIO"
1198 depends on MFD_TPS65912
1199 help
1200 This driver supports TPS65912 gpio chip
1201
1202config GPIO_TPS68470
1203 bool "TPS68470 GPIO"
1204 depends on MFD_TPS68470
1205 help
1206 Select this option to enable GPIO driver for the TPS68470
1207 chip family.
1208 There are 7 GPIOs and few sensor related GPIOs supported
1209 by the TPS68470. While the 7 GPIOs can be configured as
1210 input or output as appropriate, the sensor related GPIOs
1211 are "output only" GPIOs.
1212
1213 This driver config is bool, as the GPIO functionality
1214 of the TPS68470 must be available before dependent
1215 drivers are loaded.
1216
1217config GPIO_TQMX86
1218 tristate "TQ-Systems QTMX86 GPIO"
1219 depends on MFD_TQMX86 || COMPILE_TEST
1220 select GPIOLIB_IRQCHIP
1221 help
1222 This driver supports GPIO on the TQMX86 IO controller.
1223
1224config GPIO_TWL4030
1225 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1226 depends on TWL4030_CORE
1227 help
1228 Say yes here to access the GPIO signals of various multi-function
1229 power management chips from Texas Instruments.
1230
1231config GPIO_TWL6040
1232 tristate "TWL6040 GPO"
1233 depends on TWL6040_CORE
1234 help
1235 Say yes here to access the GPO signals of twl6040
1236 audio chip from Texas Instruments.
1237
1238config GPIO_UCB1400
1239 tristate "Philips UCB1400 GPIO"
1240 depends on UCB1400_CORE
1241 help
1242 This enables support for the Philips UCB1400 GPIO pins.
1243 The UCB1400 is an AC97 audio codec.
1244
1245config GPIO_WHISKEY_COVE
1246 tristate "GPIO support for Whiskey Cove PMIC"
1247 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1248 select GPIOLIB_IRQCHIP
1249 help
1250 Support for GPIO pins on Whiskey Cove PMIC.
1251
1252 Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1253 inside.
1254
1255 This driver can also be built as a module. If so, the module will be
1256 called gpio-wcove.
1257
1258config GPIO_WM831X
1259 tristate "WM831x GPIOs"
1260 depends on MFD_WM831X
1261 help
1262 Say yes here to access the GPIO signals of WM831x power management
1263 chips from Wolfson Microelectronics.
1264
1265config GPIO_WM8350
1266 tristate "WM8350 GPIOs"
1267 depends on MFD_WM8350
1268 help
1269 Say yes here to access the GPIO signals of WM8350 power management
1270 chips from Wolfson Microelectronics.
1271
1272config GPIO_WM8994
1273 tristate "WM8994 GPIOs"
1274 depends on MFD_WM8994
1275 help
1276 Say yes here to access the GPIO signals of WM8994 audio hub
1277 CODECs from Wolfson Microelectronics.
1278
1279endmenu
1280
1281menu "PCI GPIO expanders"
1282 depends on PCI
1283
1284config GPIO_AMD8111
1285 tristate "AMD 8111 GPIO driver"
1286 depends on X86 || COMPILE_TEST
1287 help
1288 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1289
1290 Note, that usually system firmware/ACPI handles GPIO pins on their
1291 own and users might easily break their systems with uncarefull usage
1292 of this driver!
1293
1294 If unsure, say N
1295
1296config GPIO_BT8XX
1297 tristate "BT8XX GPIO abuser"
1298 depends on VIDEO_BT848=n
1299 help
1300 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1301 as a cheap PCI GPIO card.
1302
1303 This chip can be found on Miro, Hauppauge and STB TV-cards.
1304
1305 The card needs to be physically altered for using it as a
1306 GPIO card. For more information on how to build a GPIO card
1307 from a BT8xx TV card, see the documentation file at
1308 Documentation/bt8xxgpio.txt
1309
1310 If unsure, say N.
1311
1312config GPIO_INTEL_MID
1313 bool "Intel MID GPIO support"
1314 depends on X86_INTEL_MID
1315 select GPIOLIB_IRQCHIP
1316 help
1317 Say Y here to support Intel MID GPIO.
1318
1319config GPIO_MERRIFIELD
1320 tristate "Intel Merrifield GPIO support"
1321 depends on X86_INTEL_MID
1322 select GPIOLIB_IRQCHIP
1323 help
1324 Say Y here to support Intel Merrifield GPIO.
1325
1326config GPIO_MLXBF
1327 tristate "Mellanox BlueField SoC GPIO"
1328 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1329 select GPIO_GENERIC
1330 help
1331 Say Y here if you want GPIO support on Mellanox BlueField SoC.
1332
1333config GPIO_ML_IOH
1334 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1335 depends on X86 || COMPILE_TEST
1336 select GENERIC_IRQ_CHIP
1337 help
1338 ML7213 is companion chip for Intel Atom E6xx series.
1339 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1340 Hub) which is for IVI(In-Vehicle Infotainment) use.
1341 This driver can access the IOH's GPIO device.
1342
1343config GPIO_PCH
1344 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1345 depends on X86_32 || MIPS || COMPILE_TEST
1346 select GENERIC_IRQ_CHIP
1347 help
1348 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1349 which is an IOH(Input/Output Hub) for x86 embedded processor.
1350 This driver can access PCH GPIO device.
1351
1352 This driver also can be used for LAPIS Semiconductor IOH(Input/
1353 Output Hub), ML7223 and ML7831.
1354 ML7223 IOH is for MP(Media Phone) use.
1355 ML7831 IOH is for general purpose use.
1356 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1357 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1358
1359config GPIO_PCI_IDIO_16
1360 tristate "ACCES PCI-IDIO-16 GPIO support"
1361 select GPIOLIB_IRQCHIP
1362 help
1363 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1364 generated when any of the inputs change state (low to high or high to
1365 low). Input filter control is not supported by this driver, and the
1366 input filters are deactivated by this driver.
1367
1368config GPIO_PCIE_IDIO_24
1369 tristate "ACCES PCIe-IDIO-24 GPIO support"
1370 select GPIOLIB_IRQCHIP
1371 help
1372 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1373 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1374 when any of the inputs change state (low to high or high to low).
1375 Input filter control is not supported by this driver, and the input
1376 filters are deactivated by this driver.
1377
1378config GPIO_RDC321X
1379 tristate "RDC R-321x GPIO support"
1380 select MFD_CORE
1381 select MFD_RDC321X
1382 help
1383 Support for the RDC R321x SoC GPIOs over southbridge
1384 PCI configuration space.
1385
1386config GPIO_SODAVILLE
1387 bool "Intel Sodaville GPIO support"
1388 depends on X86 && OF
1389 select GPIO_GENERIC
1390 select GENERIC_IRQ_CHIP
1391 help
1392 Say Y here to support Intel Sodaville GPIO.
1393
1394endmenu
1395
1396menu "SPI GPIO expanders"
1397 depends on SPI_MASTER
1398
1399config GPIO_74X164
1400 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1401 depends on OF_GPIO
1402 help
1403 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1404 shift registers. This driver can be used to provide access
1405 to more gpio outputs.
1406
1407config GPIO_MAX3191X
1408 tristate "Maxim MAX3191x industrial serializer"
1409 select CRC8
1410 help
1411 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1412 MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1413 chip to make 8 digital 24V inputs available via SPI. Supports
1414 CRC checksums to guard against electromagnetic interference,
1415 as well as undervoltage and overtemperature detection.
1416
1417config GPIO_MAX7301
1418 tristate "Maxim MAX7301 GPIO expander"
1419 select GPIO_MAX730X
1420 help
1421 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1422
1423config GPIO_MC33880
1424 tristate "Freescale MC33880 high-side/low-side switch"
1425 help
1426 SPI driver for Freescale MC33880 high-side/low-side switch.
1427 This provides GPIO interface supporting inputs and outputs.
1428
1429config GPIO_PISOSR
1430 tristate "Generic parallel-in/serial-out shift register"
1431 help
1432 GPIO driver for SPI compatible parallel-in/serial-out shift
1433 registers. These are input only devices.
1434
1435config GPIO_XRA1403
1436 tristate "EXAR XRA1403 16-bit GPIO expander"
1437 select REGMAP_SPI
1438 help
1439 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1440
1441endmenu
1442
1443menu "USB GPIO expanders"
1444 depends on USB
1445
1446config GPIO_VIPERBOARD
1447 tristate "Viperboard GPIO a & b support"
1448 depends on MFD_VIPERBOARD
1449 help
1450 Say yes here to access the GPIO signals of Nano River
1451 Technologies Viperboard. There are two GPIO chips on the
1452 board: gpioa and gpiob.
1453 See viperboard API specification and Nano
1454 River Tech's viperboard.h for detailed meaning
1455 of the module parameters.
1456
1457endmenu
1458
1459config GPIO_MOCKUP
1460 tristate "GPIO Testing Driver"
1461 depends on GPIOLIB
1462 select IRQ_SIM
1463 help
1464 This enables GPIO Testing driver, which provides a way to test GPIO
1465 subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
1466 must be selected for this test.
1467 User could use it through the script in
1468 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1469 it.
1470
1471endif