tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#
2# GPIO infrastructure and drivers
3#
4
5config ARCH_HAVE_CUSTOM_GPIO_H
6 bool
7 help
8 Selecting this config option from the architecture Kconfig allows
9 the architecture to provide a custom asm/gpio.h implementation
10 overriding the default implementations. New uses of this are
11 strongly discouraged.
12
13menuconfig GPIOLIB
14 bool "GPIO Support"
15 select ANON_INODES
16 help
17 This enables GPIO support through the generic GPIO library.
18 You only need to enable this, if you also want to enable
19 one or more of the GPIO drivers below.
20
21 If unsure, say N.
22
23if GPIOLIB
24
25config 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_LOONGSON
291 bool "Loongson-2/3 GPIO support"
292 depends on CPU_LOONGSON2 || CPU_LOONGSON3
293 help
294 driver for GPIO functionality on Loongson-2F/3A/3B processors.
295
296config GPIO_LPC18XX
297 tristate "NXP LPC18XX/43XX GPIO support"
298 default y if ARCH_LPC18XX
299 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
300 select IRQ_DOMAIN_HIERARCHY
301 help
302 Select this option to enable GPIO driver for
303 NXP LPC18XX/43XX devices.
304
305config GPIO_LYNXPOINT
306 tristate "Intel Lynxpoint GPIO support"
307 depends on ACPI && X86
308 select GPIOLIB_IRQCHIP
309 help
310 driver for GPIO functionality on Intel Lynxpoint PCH chipset
311 Requires ACPI device enumeration code to set up a platform device.
312
313config GPIO_MB86S7X
314 tristate "GPIO support for Fujitsu MB86S7x Platforms"
315 help
316 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
317
318config GPIO_MENZ127
319 tristate "MEN 16Z127 GPIO support"
320 depends on MCB
321 select GPIO_GENERIC
322 help
323 Say yes here to support the MEN 16Z127 GPIO Controller
324
325config GPIO_MM_LANTIQ
326 bool "Lantiq Memory mapped GPIOs"
327 depends on LANTIQ && SOC_XWAY
328 help
329 This enables support for memory mapped GPIOs on the External Bus Unit
330 (EBU) found on Lantiq SoCs. The gpios are output only as they are
331 created by attaching a 16bit latch to the bus.
332
333config GPIO_MOCKUP
334 tristate "GPIO Testing Driver"
335 depends on GPIOLIB && SYSFS
336 select GPIO_SYSFS
337 select GPIOLIB_IRQCHIP
338 select IRQ_SIM
339 help
340 This enables GPIO Testing driver, which provides a way to test GPIO
341 subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
342 must be selected for this test.
343 User could use it through the script in
344 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
345 it.
346
347config GPIO_MPC5200
348 def_bool y
349 depends on PPC_MPC52xx
350
351config GPIO_MPC8XXX
352 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
353 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
354 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
355 COMPILE_TEST
356 select GPIO_GENERIC
357 select IRQ_DOMAIN
358 help
359 Say Y here if you're going to use hardware that connects to the
360 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
361
362config GPIO_MT7621
363 bool "Mediatek MT7621 GPIO Support"
364 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
365 depends on OF_GPIO
366 select GPIO_GENERIC
367 select GPIOLIB_IRQCHIP
368 help
369 Say yes here to support the Mediatek MT7621 SoC GPIO device
370
371config GPIO_MVEBU
372 def_bool y
373 depends on PLAT_ORION || ARCH_MVEBU
374 depends on OF_GPIO
375 select GENERIC_IRQ_CHIP
376 select REGMAP_MMIO
377
378config GPIO_MXC
379 def_bool y
380 depends on ARCH_MXC
381 select GPIO_GENERIC
382 select GENERIC_IRQ_CHIP
383
384config GPIO_MXS
385 def_bool y
386 depends on ARCH_MXS
387 select GPIO_GENERIC
388 select GENERIC_IRQ_CHIP
389
390config GPIO_OCTEON
391 tristate "Cavium OCTEON GPIO"
392 depends on GPIOLIB && CAVIUM_OCTEON_SOC
393 default y
394 help
395 Say yes here to support the on-chip GPIO lines on the OCTEON
396 family of SOCs.
397
398config GPIO_OMAP
399 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
400 default y if ARCH_OMAP
401 depends on ARM
402 select GENERIC_IRQ_CHIP
403 select GPIOLIB_IRQCHIP
404 help
405 Say yes here to enable GPIO support for TI OMAP SoCs.
406
407config GPIO_PL061
408 bool "PrimeCell PL061 GPIO support"
409 depends on ARM_AMBA
410 select IRQ_DOMAIN
411 select GPIOLIB_IRQCHIP
412 help
413 Say yes here to support the PrimeCell PL061 GPIO device
414
415config GPIO_PMIC_EIC_SPRD
416 tristate "Spreadtrum PMIC EIC support"
417 depends on MFD_SC27XX_PMIC || COMPILE_TEST
418 depends on OF_GPIO
419 select GPIOLIB_IRQCHIP
420 help
421 Say yes here to support Spreadtrum PMIC EIC device.
422
423config GPIO_PXA
424 bool "PXA GPIO support"
425 depends on ARCH_PXA || ARCH_MMP
426 help
427 Say yes here to support the PXA GPIO device
428
429config GPIO_RCAR
430 tristate "Renesas R-Car GPIO"
431 depends on ARCH_RENESAS || COMPILE_TEST
432 select GPIOLIB_IRQCHIP
433 help
434 Say yes here to support GPIO on Renesas R-Car SoCs.
435
436config GPIO_REG
437 bool
438 help
439 A 32-bit single register GPIO fixed in/out implementation. This
440 can be used to represent any register as a set of GPIO signals.
441
442config GPIO_SAMA5D2_PIOBU
443 tristate "SAMA5D2 PIOBU GPIO support"
444 depends on MFD_SYSCON
445 depends on OF_GPIO
446 select GPIO_SYSCON
447 help
448 Say yes here to use the PIOBU pins as GPIOs.
449
450 PIOBU pins on the SAMA5D2 can be used as GPIOs.
451 The difference from regular GPIOs is that they
452 maintain their value during backup/self-refresh.
453
454config GPIO_SIOX
455 tristate "SIOX GPIO support"
456 depends on SIOX
457 select GPIOLIB_IRQCHIP
458 help
459 Say yes here to support SIOX I/O devices. These are units connected
460 via a SIOX bus and have a number of fixed-direction I/O lines.
461
462config GPIO_SNPS_CREG
463 bool "Synopsys GPIO via CREG (Control REGisters) driver"
464 depends on ARC || COMPILE_TEST
465 depends on OF_GPIO
466 help
467 This driver supports GPIOs via CREG on various Synopsys SoCs.
468 This is a single-register MMIO GPIO driver for complex cases
469 where only several fields in register belong to GPIO lines and
470 each GPIO line owns a field with different length and on/off value.
471
472config GPIO_SPEAR_SPICS
473 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
474 depends on PLAT_SPEAR
475 select GENERIC_IRQ_CHIP
476 help
477 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
478
479config GPIO_SPRD
480 tristate "Spreadtrum GPIO support"
481 depends on ARCH_SPRD || COMPILE_TEST
482 depends on OF_GPIO
483 select GPIOLIB_IRQCHIP
484 help
485 Say yes here to support Spreadtrum GPIO device.
486
487config GPIO_STA2X11
488 bool "STA2x11/ConneXt GPIO support"
489 depends on MFD_STA2X11
490 select GENERIC_IRQ_CHIP
491 help
492 Say yes here to support the STA2x11/ConneXt GPIO device.
493 The GPIO module has 128 GPIO pins with alternate functions.
494
495config GPIO_STP_XWAY
496 bool "XWAY STP GPIOs"
497 depends on SOC_XWAY
498 help
499 This enables support for the Serial To Parallel (STP) unit found on
500 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
501 that can be up to 24 bit. This peripheral is aimed at driving leds.
502 Some of the gpios/leds can be auto updated by the soc with dsl and
503 phy status.
504
505config GPIO_SYSCON
506 tristate "GPIO based on SYSCON"
507 depends on MFD_SYSCON && OF
508 help
509 Say yes here to support GPIO functionality though SYSCON driver.
510
511config GPIO_TB10X
512 bool
513 select GPIO_GENERIC
514 select GENERIC_IRQ_CHIP
515 select OF_GPIO
516
517config GPIO_TEGRA
518 bool "NVIDIA Tegra GPIO support"
519 default ARCH_TEGRA
520 depends on ARCH_TEGRA || COMPILE_TEST
521 depends on OF_GPIO
522 help
523 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
524
525config GPIO_TEGRA186
526 tristate "NVIDIA Tegra186 GPIO support"
527 default ARCH_TEGRA_186_SOC
528 depends on ARCH_TEGRA_186_SOC || COMPILE_TEST
529 depends on OF_GPIO
530 select GPIOLIB_IRQCHIP
531 help
532 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
533
534config GPIO_TS4800
535 tristate "TS-4800 DIO blocks and compatibles"
536 depends on OF_GPIO
537 depends on SOC_IMX51 || COMPILE_TEST
538 select GPIO_GENERIC
539 help
540 This driver support TS-4800 FPGA GPIO controllers.
541
542config GPIO_THUNDERX
543 tristate "Cavium ThunderX/OCTEON-TX GPIO"
544 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
545 depends on PCI_MSI
546 select IRQ_DOMAIN_HIERARCHY
547 select IRQ_FASTEOI_HIERARCHY_HANDLERS
548 help
549 Say yes here to support the on-chip GPIO lines on the ThunderX
550 and OCTEON-TX families of SoCs.
551
552config GPIO_UNIPHIER
553 tristate "UniPhier GPIO support"
554 depends on ARCH_UNIPHIER || COMPILE_TEST
555 depends on OF_GPIO
556 select IRQ_DOMAIN_HIERARCHY
557 help
558 Say yes here to support UniPhier GPIOs.
559
560config GPIO_VF610
561 def_bool y
562 depends on ARCH_MXC && SOC_VF610
563 select GPIOLIB_IRQCHIP
564 help
565 Say yes here to support Vybrid vf610 GPIOs.
566
567config GPIO_VR41XX
568 tristate "NEC VR4100 series General-purpose I/O Uint support"
569 depends on CPU_VR41XX
570 help
571 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
572
573config GPIO_VX855
574 tristate "VIA VX855/VX875 GPIO"
575 depends on (X86 || COMPILE_TEST) && PCI
576 select MFD_CORE
577 select MFD_VX855
578 help
579 Support access to the VX855/VX875 GPIO lines through the gpio library.
580
581 This driver provides common support for accessing the device,
582 additional drivers must be enabled in order to use the
583 functionality of the device.
584
585config GPIO_XGENE
586 bool "APM X-Gene GPIO controller support"
587 depends on ARM64 && OF_GPIO
588 help
589 This driver is to support the GPIO block within the APM X-Gene SoC
590 platform's generic flash controller. The GPIO pins are muxed with
591 the generic flash controller's address and data pins. Say yes
592 here to enable the GFC GPIO functionality.
593
594config GPIO_XGENE_SB
595 tristate "APM X-Gene GPIO standby controller support"
596 depends on ARCH_XGENE && OF_GPIO
597 select GPIO_GENERIC
598 select GPIOLIB_IRQCHIP
599 select IRQ_DOMAIN_HIERARCHY
600 help
601 This driver supports the GPIO block within the APM X-Gene
602 Standby Domain. Say yes here to enable the GPIO functionality.
603
604config GPIO_XILINX
605 tristate "Xilinx GPIO support"
606 depends on OF_GPIO
607 help
608 Say yes here to support the Xilinx FPGA GPIO device
609
610config GPIO_XLP
611 tristate "Netlogic XLP GPIO support"
612 depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
613 select GPIOLIB_IRQCHIP
614 help
615 This driver provides support for GPIO interface on Netlogic XLP MIPS64
616 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
617 XLP9XX and XLP5XX. The same GPIO controller block is also present in
618 Cavium's ThunderX2 CN99XX SoCs.
619
620 If unsure, say N.
621
622config GPIO_XTENSA
623 bool "Xtensa GPIO32 support"
624 depends on XTENSA
625 depends on HAVE_XTENSA_GPIO32
626 depends on !SMP
627 help
628 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
629 and EXPSTATE (output) ports
630
631config GPIO_ZEVIO
632 bool "LSI ZEVIO SoC memory mapped GPIOs"
633 depends on ARM && OF_GPIO
634 help
635 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
636
637config GPIO_ZYNQ
638 tristate "Xilinx Zynq GPIO support"
639 depends on ARCH_ZYNQ || ARCH_ZYNQMP
640 select GPIOLIB_IRQCHIP
641 help
642 Say yes here to support Xilinx Zynq GPIO controller.
643
644config GPIO_ZX
645 bool "ZTE ZX GPIO support"
646 depends on ARCH_ZX || COMPILE_TEST
647 select GPIOLIB_IRQCHIP
648 help
649 Say yes here to support the GPIO device on ZTE ZX SoCs.
650
651config GPIO_LOONGSON1
652 tristate "Loongson1 GPIO support"
653 depends on MACH_LOONGSON32
654 select GPIO_GENERIC
655 help
656 Say Y or M here to support GPIO on Loongson1 SoCs.
657
658config GPIO_AMD_FCH
659 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
660 help
661 This option enables driver for GPIO on AMDs Fusion Controller Hub,
662 as found on G-series SOCs (eg. GX-412TC)
663
664 Note: This driver doesn't registers itself automatically, as it
665 needs to be provided with platform specific configuration.
666 (See eg. CONFIG_PCENGINES_APU2.)
667endmenu
668
669menu "Port-mapped I/O GPIO drivers"
670 depends on X86 # Unconditional I/O space access
671
672config GPIO_104_DIO_48E
673 tristate "ACCES 104-DIO-48E GPIO support"
674 depends on PC104
675 select ISA_BUS_API
676 select GPIOLIB_IRQCHIP
677 help
678 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
679 104-DIO-24E). The base port addresses for the devices may be
680 configured via the base module parameter. The interrupt line numbers
681 for the devices may be configured via the irq module parameter.
682
683config GPIO_104_IDIO_16
684 tristate "ACCES 104-IDIO-16 GPIO support"
685 depends on PC104
686 select ISA_BUS_API
687 select GPIOLIB_IRQCHIP
688 help
689 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
690 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
691 base port addresses for the devices may be configured via the base
692 module parameter. The interrupt line numbers for the devices may be
693 configured via the irq module parameter.
694
695config GPIO_104_IDI_48
696 tristate "ACCES 104-IDI-48 GPIO support"
697 depends on PC104
698 select ISA_BUS_API
699 select GPIOLIB_IRQCHIP
700 help
701 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
702 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
703 the devices may be configured via the base module parameter. The
704 interrupt line numbers for the devices may be configured via the irq
705 module parameter.
706
707config GPIO_F7188X
708 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
709 help
710 This option enables support for GPIOs found on Fintek Super-I/O
711 chips F71869, F71869A, F71882FG, F71889F and F81866.
712
713 To compile this driver as a module, choose M here: the module will
714 be called f7188x-gpio.
715
716config GPIO_GPIO_MM
717 tristate "Diamond Systems GPIO-MM GPIO support"
718 depends on PC104
719 select ISA_BUS_API
720 help
721 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
722
723 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
724 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
725 support for these 48 channels of digital I/O.
726
727 The base port addresses for the devices may be configured via the base
728 array module parameter.
729
730config GPIO_IT87
731 tristate "IT87xx GPIO support"
732 help
733 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
734
735 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
736 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
737 well.
738
739 To compile this driver as a module, choose M here: the module will
740 be called gpio_it87
741
742config GPIO_SCH
743 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
744 depends on (X86 || COMPILE_TEST) && PCI
745 select MFD_CORE
746 select LPC_SCH
747 help
748 Say yes here to support GPIO interface on Intel Poulsbo SCH,
749 Intel Tunnel Creek processor, Intel Centerton processor or
750 Intel Quark X1000 SoC.
751
752 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
753 powered by the core power rail and are turned off during sleep
754 modes (S3 and higher). The remaining four GPIOs are powered by
755 the Intel SCH suspend power supply. These GPIOs remain
756 active during S3. The suspend powered GPIOs can be used to wake the
757 system from the Suspend-to-RAM state.
758
759 The Intel Tunnel Creek processor has 5 GPIOs powered by the
760 core power rail and 9 from suspend power supply.
761
762 The Intel Centerton processor has a total of 30 GPIO pins.
763 Twenty-one are powered by the core power rail and 9 from the
764 suspend power supply.
765
766 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
767 power well and 6 from the suspend power well.
768
769config GPIO_SCH311X
770 tristate "SMSC SCH311x SuperI/O GPIO"
771 help
772 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
773 SCH3116 "Super I/O" chipsets.
774
775 To compile this driver as a module, choose M here: the module will
776 be called gpio-sch311x.
777
778config GPIO_TS5500
779 tristate "TS-5500 DIO blocks and compatibles"
780 depends on TS5500 || COMPILE_TEST
781 help
782 This driver supports Digital I/O exposed by pin blocks found on some
783 Technologic Systems platforms. It includes, but is not limited to, 3
784 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
785 LCD port.
786
787config GPIO_WINBOND
788 tristate "Winbond Super I/O GPIO support"
789 select ISA_BUS_API
790 help
791 This option enables support for GPIOs found on Winbond Super I/O
792 chips.
793 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
794 supported.
795
796 You will need to provide a module parameter "gpios", or a
797 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
798 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
799
800 To compile this driver as a module, choose M here: the module will
801 be called gpio-winbond.
802
803config GPIO_WS16C48
804 tristate "WinSystems WS16C48 GPIO support"
805 select ISA_BUS_API
806 select GPIOLIB_IRQCHIP
807 help
808 Enables GPIO support for the WinSystems WS16C48. The base port
809 addresses for the devices may be configured via the base module
810 parameter. The interrupt line numbers for the devices may be
811 configured via the irq module parameter.
812
813endmenu
814
815menu "I2C GPIO expanders"
816 depends on I2C
817
818config GPIO_ADP5588
819 tristate "ADP5588 I2C GPIO expander"
820 help
821 This option enables support for 18 GPIOs found
822 on Analog Devices ADP5588 GPIO Expanders.
823
824config GPIO_ADP5588_IRQ
825 bool "Interrupt controller support for ADP5588"
826 depends on GPIO_ADP5588=y
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_MSIC
1116 bool "Intel MSIC mixed signal gpio support"
1117 depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
1118 help
1119 Enable support for GPIO on intel MSIC controllers found in
1120 intel MID devices
1121
1122config GPIO_PALMAS
1123 bool "TI PALMAS series PMICs GPIO"
1124 depends on MFD_PALMAS
1125 help
1126 Select this option to enable GPIO driver for the TI PALMAS
1127 series chip family.
1128
1129config GPIO_RC5T583
1130 bool "RICOH RC5T583 GPIO"
1131 depends on MFD_RC5T583
1132 help
1133 Select this option to enable GPIO driver for the Ricoh RC5T583
1134 chip family.
1135 This driver provides the support for driving/reading the gpio pins
1136 of RC5T583 device through standard gpio library.
1137
1138config GPIO_STMPE
1139 bool "STMPE GPIOs"
1140 depends on MFD_STMPE
1141 depends on OF_GPIO
1142 select GPIOLIB_IRQCHIP
1143 help
1144 This enables support for the GPIOs found on the STMPE I/O
1145 Expanders.
1146
1147config GPIO_TC3589X
1148 bool "TC3589X GPIOs"
1149 depends on MFD_TC3589X
1150 depends on OF_GPIO
1151 select GPIOLIB_IRQCHIP
1152 help
1153 This enables support for the GPIOs found on the TC3589X
1154 I/O Expander.
1155
1156config GPIO_TIMBERDALE
1157 bool "Support for timberdale GPIO IP"
1158 depends on MFD_TIMBERDALE
1159 ---help---
1160 Add support for the GPIO IP in the timberdale FPGA.
1161
1162config GPIO_TPS65086
1163 tristate "TI TPS65086 GPO"
1164 depends on MFD_TPS65086
1165 help
1166 This driver supports the GPO on TI TPS65086x PMICs.
1167
1168config GPIO_TPS65218
1169 tristate "TPS65218 GPIO"
1170 depends on MFD_TPS65218
1171 help
1172 Select this option to enable GPIO driver for the TPS65218
1173 chip family.
1174
1175config GPIO_TPS6586X
1176 bool "TPS6586X GPIO"
1177 depends on MFD_TPS6586X
1178 help
1179 Select this option to enable GPIO driver for the TPS6586X
1180 chip family.
1181
1182config GPIO_TPS65910
1183 bool "TPS65910 GPIO"
1184 depends on MFD_TPS65910
1185 help
1186 Select this option to enable GPIO driver for the TPS65910
1187 chip family.
1188
1189config GPIO_TPS65912
1190 tristate "TI TPS65912 GPIO"
1191 depends on MFD_TPS65912
1192 help
1193 This driver supports TPS65912 gpio chip
1194
1195config GPIO_TPS68470
1196 bool "TPS68470 GPIO"
1197 depends on MFD_TPS68470
1198 help
1199 Select this option to enable GPIO driver for the TPS68470
1200 chip family.
1201 There are 7 GPIOs and few sensor related GPIOs supported
1202 by the TPS68470. While the 7 GPIOs can be configured as
1203 input or output as appropriate, the sensor related GPIOs
1204 are "output only" GPIOs.
1205
1206 This driver config is bool, as the GPIO functionality
1207 of the TPS68470 must be available before dependent
1208 drivers are loaded.
1209
1210config GPIO_TQMX86
1211 tristate "TQ-Systems QTMX86 GPIO"
1212 depends on MFD_TQMX86 || COMPILE_TEST
1213 select GPIOLIB_IRQCHIP
1214 help
1215 This driver supports GPIO on the TQMX86 IO controller.
1216
1217config GPIO_TWL4030
1218 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1219 depends on TWL4030_CORE
1220 help
1221 Say yes here to access the GPIO signals of various multi-function
1222 power management chips from Texas Instruments.
1223
1224config GPIO_TWL6040
1225 tristate "TWL6040 GPO"
1226 depends on TWL6040_CORE
1227 help
1228 Say yes here to access the GPO signals of twl6040
1229 audio chip from Texas Instruments.
1230
1231config GPIO_UCB1400
1232 tristate "Philips UCB1400 GPIO"
1233 depends on UCB1400_CORE
1234 help
1235 This enables support for the Philips UCB1400 GPIO pins.
1236 The UCB1400 is an AC97 audio codec.
1237
1238config GPIO_WHISKEY_COVE
1239 tristate "GPIO support for Whiskey Cove PMIC"
1240 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1241 select GPIOLIB_IRQCHIP
1242 help
1243 Support for GPIO pins on Whiskey Cove PMIC.
1244
1245 Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1246 inside.
1247
1248 This driver can also be built as a module. If so, the module will be
1249 called gpio-wcove.
1250
1251config GPIO_WM831X
1252 tristate "WM831x GPIOs"
1253 depends on MFD_WM831X
1254 help
1255 Say yes here to access the GPIO signals of WM831x power management
1256 chips from Wolfson Microelectronics.
1257
1258config GPIO_WM8350
1259 tristate "WM8350 GPIOs"
1260 depends on MFD_WM8350
1261 help
1262 Say yes here to access the GPIO signals of WM8350 power management
1263 chips from Wolfson Microelectronics.
1264
1265config GPIO_WM8994
1266 tristate "WM8994 GPIOs"
1267 depends on MFD_WM8994
1268 help
1269 Say yes here to access the GPIO signals of WM8994 audio hub
1270 CODECs from Wolfson Microelectronics.
1271
1272endmenu
1273
1274menu "PCI GPIO expanders"
1275 depends on PCI
1276
1277config GPIO_AMD8111
1278 tristate "AMD 8111 GPIO driver"
1279 depends on X86 || COMPILE_TEST
1280 help
1281 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1282
1283 Note, that usually system firmware/ACPI handles GPIO pins on their
1284 own and users might easily break their systems with uncarefull usage
1285 of this driver!
1286
1287 If unsure, say N
1288
1289config GPIO_BT8XX
1290 tristate "BT8XX GPIO abuser"
1291 depends on VIDEO_BT848=n
1292 help
1293 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1294 as a cheap PCI GPIO card.
1295
1296 This chip can be found on Miro, Hauppauge and STB TV-cards.
1297
1298 The card needs to be physically altered for using it as a
1299 GPIO card. For more information on how to build a GPIO card
1300 from a BT8xx TV card, see the documentation file at
1301 Documentation/bt8xxgpio.txt
1302
1303 If unsure, say N.
1304
1305config GPIO_INTEL_MID
1306 bool "Intel MID GPIO support"
1307 depends on X86_INTEL_MID
1308 select GPIOLIB_IRQCHIP
1309 help
1310 Say Y here to support Intel MID GPIO.
1311
1312config GPIO_MERRIFIELD
1313 tristate "Intel Merrifield GPIO support"
1314 depends on X86_INTEL_MID
1315 select GPIOLIB_IRQCHIP
1316 help
1317 Say Y here to support Intel Merrifield GPIO.
1318
1319config GPIO_ML_IOH
1320 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1321 depends on X86 || COMPILE_TEST
1322 select GENERIC_IRQ_CHIP
1323 help
1324 ML7213 is companion chip for Intel Atom E6xx series.
1325 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1326 Hub) which is for IVI(In-Vehicle Infotainment) use.
1327 This driver can access the IOH's GPIO device.
1328
1329config GPIO_PCH
1330 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1331 depends on X86_32 || MIPS || COMPILE_TEST
1332 select GENERIC_IRQ_CHIP
1333 help
1334 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1335 which is an IOH(Input/Output Hub) for x86 embedded processor.
1336 This driver can access PCH GPIO device.
1337
1338 This driver also can be used for LAPIS Semiconductor IOH(Input/
1339 Output Hub), ML7223 and ML7831.
1340 ML7223 IOH is for MP(Media Phone) use.
1341 ML7831 IOH is for general purpose use.
1342 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1343 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1344
1345config GPIO_PCI_IDIO_16
1346 tristate "ACCES PCI-IDIO-16 GPIO support"
1347 select GPIOLIB_IRQCHIP
1348 help
1349 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1350 generated when any of the inputs change state (low to high or high to
1351 low). Input filter control is not supported by this driver, and the
1352 input filters are deactivated by this driver.
1353
1354config GPIO_PCIE_IDIO_24
1355 tristate "ACCES PCIe-IDIO-24 GPIO support"
1356 select GPIOLIB_IRQCHIP
1357 help
1358 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1359 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1360 when any of the inputs change state (low to high or high to low).
1361 Input filter control is not supported by this driver, and the input
1362 filters are deactivated by this driver.
1363
1364config GPIO_RDC321X
1365 tristate "RDC R-321x GPIO support"
1366 select MFD_CORE
1367 select MFD_RDC321X
1368 help
1369 Support for the RDC R321x SoC GPIOs over southbridge
1370 PCI configuration space.
1371
1372config GPIO_SODAVILLE
1373 bool "Intel Sodaville GPIO support"
1374 depends on X86 && OF
1375 select GPIO_GENERIC
1376 select GENERIC_IRQ_CHIP
1377 help
1378 Say Y here to support Intel Sodaville GPIO.
1379
1380endmenu
1381
1382menu "SPI GPIO expanders"
1383 depends on SPI_MASTER
1384
1385config GPIO_74X164
1386 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1387 depends on OF_GPIO
1388 help
1389 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1390 shift registers. This driver can be used to provide access
1391 to more gpio outputs.
1392
1393config GPIO_MAX3191X
1394 tristate "Maxim MAX3191x industrial serializer"
1395 select CRC8
1396 help
1397 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1398 MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1399 chip to make 8 digital 24V inputs available via SPI. Supports
1400 CRC checksums to guard against electromagnetic interference,
1401 as well as undervoltage and overtemperature detection.
1402
1403config GPIO_MAX7301
1404 tristate "Maxim MAX7301 GPIO expander"
1405 select GPIO_MAX730X
1406 help
1407 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1408
1409config GPIO_MC33880
1410 tristate "Freescale MC33880 high-side/low-side switch"
1411 help
1412 SPI driver for Freescale MC33880 high-side/low-side switch.
1413 This provides GPIO interface supporting inputs and outputs.
1414
1415config GPIO_PISOSR
1416 tristate "Generic parallel-in/serial-out shift register"
1417 help
1418 GPIO driver for SPI compatible parallel-in/serial-out shift
1419 registers. These are input only devices.
1420
1421config GPIO_XRA1403
1422 tristate "EXAR XRA1403 16-bit GPIO expander"
1423 select REGMAP_SPI
1424 help
1425 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1426
1427endmenu
1428
1429menu "USB GPIO expanders"
1430 depends on USB
1431
1432config GPIO_VIPERBOARD
1433 tristate "Viperboard GPIO a & b support"
1434 depends on MFD_VIPERBOARD
1435 help
1436 Say yes here to access the GPIO signals of Nano River
1437 Technologies Viperboard. There are two GPIO chips on the
1438 board: gpioa and gpiob.
1439 See viperboard API specification and Nano
1440 River Tech's viperboard.h for detailed meaning
1441 of the module parameters.
1442
1443endmenu
1444
1445endif