xref: /openbmc/linux/drivers/gpio/Kconfig (revision ba61bb17)
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_CLPS711X
164	tristate "CLPS711X GPIO support"
165	depends on ARCH_CLPS711X || COMPILE_TEST
166	select GPIO_GENERIC
167	help
168	  Say yes here to support GPIO on CLPS711X SoCs.
169
170config GPIO_DAVINCI
171	bool "TI Davinci/Keystone GPIO support"
172	default y if ARCH_DAVINCI
173	depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
174	help
175	  Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
176
177config GPIO_DWAPB
178	tristate "Synopsys DesignWare APB GPIO driver"
179	select GPIO_GENERIC
180	select GENERIC_IRQ_CHIP
181	help
182	  Say Y or M here to build support for the Synopsys DesignWare APB
183	  GPIO block.
184
185config GPIO_EIC_SPRD
186	tristate "Spreadtrum EIC support"
187	depends on ARCH_SPRD || COMPILE_TEST
188	depends on OF_GPIO
189	select GPIOLIB_IRQCHIP
190	help
191	  Say yes here to support Spreadtrum EIC device.
192
193config GPIO_EM
194	tristate "Emma Mobile GPIO"
195	depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
196	help
197	  Say yes here to support GPIO on Renesas Emma Mobile SoCs.
198
199config GPIO_EP93XX
200	def_bool y
201	depends on ARCH_EP93XX
202	select GPIO_GENERIC
203
204config GPIO_EXAR
205	tristate "Support for GPIO pins on XR17V352/354/358"
206	depends on SERIAL_8250_EXAR
207	help
208	  Selecting this option will enable handling of GPIO pins present
209	  on Exar XR17V352/354/358 chips.
210
211config GPIO_GE_FPGA
212	bool "GE FPGA based GPIO"
213	depends on GE_FPGA
214	select GPIO_GENERIC
215	help
216	  Support for common GPIO functionality provided on some GE Single Board
217	  Computers.
218
219	  This driver provides basic support (configure as input or output, read
220	  and write pin state) for GPIO implemented in a number of GE single
221	  board computers.
222
223config GPIO_FTGPIO010
224	bool "Faraday FTGPIO010 GPIO"
225	depends on OF_GPIO
226	select GPIO_GENERIC
227	select GPIOLIB_IRQCHIP
228	default (ARCH_GEMINI || ARCH_MOXART)
229	help
230	  Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
231	  Cortina systems Gemini platforms, Moxa ART and others.
232
233config GPIO_GENERIC_PLATFORM
234	tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
235	select GPIO_GENERIC
236	help
237	  Say yes here to support basic platform_device memory-mapped GPIO controllers.
238
239config GPIO_GRGPIO
240	tristate "Aeroflex Gaisler GRGPIO support"
241	depends on OF_GPIO
242	select GPIO_GENERIC
243	select IRQ_DOMAIN
244	help
245	  Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
246	  VHDL IP core library.
247
248config GPIO_HLWD
249	tristate "Nintendo Wii (Hollywood) GPIO"
250	depends on OF_GPIO
251	select GPIO_GENERIC
252	help
253	  Select this to support the GPIO controller of the Nintendo Wii.
254
255	  If unsure, say N.
256
257config GPIO_ICH
258	tristate "Intel ICH GPIO"
259	depends on PCI && X86
260	select MFD_CORE
261	select LPC_ICH
262	help
263	  Say yes here to support the GPIO functionality of a number of Intel
264	  ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
265	  ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
266	  Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
267
268	  If unsure, say N.
269
270config GPIO_INGENIC
271	tristate "Ingenic JZ47xx SoCs GPIO support"
272	depends on OF
273	depends on MACH_INGENIC || COMPILE_TEST
274	select GPIOLIB_IRQCHIP
275	help
276	  Say yes here to support the GPIO functionality present on the
277	  JZ4740 and JZ4780 SoCs from Ingenic.
278
279	  If unsure, say N.
280
281config GPIO_IOP
282	tristate "Intel IOP GPIO"
283	depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST
284	select GPIO_GENERIC
285	help
286	  Say yes here to support the GPIO functionality of a number of Intel
287	  IOP32X or IOP33X.
288
289	  If unsure, say N.
290
291config GPIO_LOONGSON
292	bool "Loongson-2/3 GPIO support"
293	depends on CPU_LOONGSON2 || CPU_LOONGSON3
294	help
295	  driver for GPIO functionality on Loongson-2F/3A/3B processors.
296
297config GPIO_LPC18XX
298	tristate "NXP LPC18XX/43XX GPIO support"
299	default y if ARCH_LPC18XX
300	depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
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_MVEBU
363	def_bool y
364	depends on PLAT_ORION || ARCH_MVEBU
365	depends on OF_GPIO
366	select GENERIC_IRQ_CHIP
367	select REGMAP_MMIO
368
369config GPIO_MXC
370	def_bool y
371	depends on ARCH_MXC
372	select GPIO_GENERIC
373	select GENERIC_IRQ_CHIP
374
375config GPIO_MXS
376	def_bool y
377	depends on ARCH_MXS
378	select GPIO_GENERIC
379	select GENERIC_IRQ_CHIP
380
381config GPIO_OCTEON
382	tristate "Cavium OCTEON GPIO"
383	depends on GPIOLIB && CAVIUM_OCTEON_SOC
384	default y
385	help
386	  Say yes here to support the on-chip GPIO lines on the OCTEON
387	  family of SOCs.
388
389config GPIO_OMAP
390	tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
391	default y if ARCH_OMAP
392	depends on ARM
393	select GENERIC_IRQ_CHIP
394	select GPIOLIB_IRQCHIP
395	help
396	  Say yes here to enable GPIO support for TI OMAP SoCs.
397
398config GPIO_PL061
399	bool "PrimeCell PL061 GPIO support"
400	depends on ARM_AMBA
401	select IRQ_DOMAIN
402	select GPIOLIB_IRQCHIP
403	help
404	  Say yes here to support the PrimeCell PL061 GPIO device
405
406config GPIO_PMIC_EIC_SPRD
407	tristate "Spreadtrum PMIC EIC support"
408	depends on MFD_SC27XX_PMIC || COMPILE_TEST
409	depends on OF_GPIO
410	select GPIOLIB_IRQCHIP
411	help
412	  Say yes here to support Spreadtrum PMIC EIC device.
413
414config GPIO_PXA
415	bool "PXA GPIO support"
416	depends on ARCH_PXA || ARCH_MMP
417	help
418	  Say yes here to support the PXA GPIO device
419
420config GPIO_RCAR
421	tristate "Renesas R-Car GPIO"
422	depends on ARCH_RENESAS || COMPILE_TEST
423	select GPIOLIB_IRQCHIP
424	help
425	  Say yes here to support GPIO on Renesas R-Car SoCs.
426
427config GPIO_REG
428	bool
429	help
430	  A 32-bit single register GPIO fixed in/out implementation.  This
431	  can be used to represent any register as a set of GPIO signals.
432
433config GPIO_SPEAR_SPICS
434	bool "ST SPEAr13xx SPI Chip Select as GPIO support"
435	depends on PLAT_SPEAR
436	select GENERIC_IRQ_CHIP
437	help
438	  Say yes here to support ST SPEAr SPI Chip Select as GPIO device
439
440config GPIO_SPRD
441	tristate "Spreadtrum GPIO support"
442	depends on ARCH_SPRD || COMPILE_TEST
443	depends on OF_GPIO
444	select GPIOLIB_IRQCHIP
445	help
446	  Say yes here to support Spreadtrum GPIO device.
447
448config GPIO_STA2X11
449	bool "STA2x11/ConneXt GPIO support"
450	depends on MFD_STA2X11
451	select GENERIC_IRQ_CHIP
452	help
453	  Say yes here to support the STA2x11/ConneXt GPIO device.
454	  The GPIO module has 128 GPIO pins with alternate functions.
455
456config GPIO_STP_XWAY
457	bool "XWAY STP GPIOs"
458	depends on SOC_XWAY
459	help
460	  This enables support for the Serial To Parallel (STP) unit found on
461	  XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
462	  that can be up to 24 bit. This peripheral is aimed at driving leds.
463	  Some of the gpios/leds can be auto updated by the soc with dsl and
464	  phy status.
465
466config GPIO_SYSCON
467	tristate "GPIO based on SYSCON"
468	depends on MFD_SYSCON && OF
469	help
470	  Say yes here to support GPIO functionality though SYSCON driver.
471
472config GPIO_TB10X
473	bool
474	select GENERIC_IRQ_CHIP
475	select OF_GPIO
476
477config GPIO_TEGRA
478	bool "NVIDIA Tegra GPIO support"
479	default ARCH_TEGRA
480	depends on ARCH_TEGRA || COMPILE_TEST
481	depends on OF_GPIO
482	help
483	  Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
484
485config GPIO_TEGRA186
486	tristate "NVIDIA Tegra186 GPIO support"
487	default ARCH_TEGRA_186_SOC
488	depends on ARCH_TEGRA_186_SOC || COMPILE_TEST
489	depends on OF_GPIO
490	select GPIOLIB_IRQCHIP
491	help
492	  Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
493
494config GPIO_TS4800
495	tristate "TS-4800 DIO blocks and compatibles"
496	depends on OF_GPIO
497	depends on SOC_IMX51 || COMPILE_TEST
498	select GPIO_GENERIC
499	help
500	  This driver support TS-4800 FPGA GPIO controllers.
501
502config GPIO_THUNDERX
503	tristate "Cavium ThunderX/OCTEON-TX GPIO"
504	depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
505	depends on PCI_MSI
506	select IRQ_DOMAIN_HIERARCHY
507	select IRQ_FASTEOI_HIERARCHY_HANDLERS
508	help
509	  Say yes here to support the on-chip GPIO lines on the ThunderX
510	  and OCTEON-TX families of SoCs.
511
512config GPIO_UNIPHIER
513	tristate "UniPhier GPIO support"
514	depends on ARCH_UNIPHIER || COMPILE_TEST
515	depends on OF_GPIO
516	select IRQ_DOMAIN_HIERARCHY
517	help
518	  Say yes here to support UniPhier GPIOs.
519
520config GPIO_VF610
521	def_bool y
522	depends on ARCH_MXC && SOC_VF610
523	select GPIOLIB_IRQCHIP
524	help
525	  Say yes here to support Vybrid vf610 GPIOs.
526
527config GPIO_VR41XX
528	tristate "NEC VR4100 series General-purpose I/O Uint support"
529	depends on CPU_VR41XX
530	help
531	  Say yes here to support the NEC VR4100 series General-purpose I/O Uint
532
533config GPIO_VX855
534	tristate "VIA VX855/VX875 GPIO"
535	depends on (X86 || COMPILE_TEST) && PCI
536	select MFD_CORE
537	select MFD_VX855
538	help
539	  Support access to the VX855/VX875 GPIO lines through the gpio library.
540
541	  This driver provides common support for accessing the device,
542	  additional drivers must be enabled in order to use the
543	  functionality of the device.
544
545config GPIO_XGENE
546	bool "APM X-Gene GPIO controller support"
547	depends on ARM64 && OF_GPIO
548	help
549	  This driver is to support the GPIO block within the APM X-Gene SoC
550	  platform's generic flash controller. The GPIO pins are muxed with
551	  the generic flash controller's address and data pins. Say yes
552	  here to enable the GFC GPIO functionality.
553
554config GPIO_XGENE_SB
555	tristate "APM X-Gene GPIO standby controller support"
556	depends on ARCH_XGENE && OF_GPIO
557	select GPIO_GENERIC
558	select GPIOLIB_IRQCHIP
559	select IRQ_DOMAIN_HIERARCHY
560	help
561	  This driver supports the GPIO block within the APM X-Gene
562	  Standby Domain. Say yes here to enable the GPIO functionality.
563
564config GPIO_XILINX
565	tristate "Xilinx GPIO support"
566	depends on OF_GPIO
567	help
568	  Say yes here to support the Xilinx FPGA GPIO device
569
570config GPIO_XLP
571	tristate "Netlogic XLP GPIO support"
572	depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
573	select GPIOLIB_IRQCHIP
574	help
575	  This driver provides support for GPIO interface on Netlogic XLP MIPS64
576	  SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
577	  XLP9XX and XLP5XX. The same GPIO controller block is also present in
578	  Cavium's ThunderX2 CN99XX SoCs.
579
580	  If unsure, say N.
581
582config GPIO_XTENSA
583	bool "Xtensa GPIO32 support"
584	depends on XTENSA
585	depends on HAVE_XTENSA_GPIO32
586	depends on !SMP
587	help
588	  Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
589	  and EXPSTATE (output) ports
590
591config GPIO_ZEVIO
592	bool "LSI ZEVIO SoC memory mapped GPIOs"
593	depends on ARM && OF_GPIO
594	help
595	  Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
596
597config GPIO_ZYNQ
598	tristate "Xilinx Zynq GPIO support"
599	depends on ARCH_ZYNQ || ARCH_ZYNQMP
600	select GPIOLIB_IRQCHIP
601	help
602	  Say yes here to support Xilinx Zynq GPIO controller.
603
604config GPIO_ZX
605	bool "ZTE ZX GPIO support"
606	depends on ARCH_ZX || COMPILE_TEST
607	select GPIOLIB_IRQCHIP
608	help
609	  Say yes here to support the GPIO device on ZTE ZX SoCs.
610
611config GPIO_LOONGSON1
612	tristate "Loongson1 GPIO support"
613	depends on MACH_LOONGSON32
614	select GPIO_GENERIC
615	help
616	  Say Y or M here to support GPIO on Loongson1 SoCs.
617
618endmenu
619
620menu "Port-mapped I/O GPIO drivers"
621	depends on X86 # Unconditional I/O space access
622
623config GPIO_104_DIO_48E
624	tristate "ACCES 104-DIO-48E GPIO support"
625	depends on PC104
626	select ISA_BUS_API
627	select GPIOLIB_IRQCHIP
628	help
629	  Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
630	  104-DIO-24E). The base port addresses for the devices may be
631	  configured via the base module parameter. The interrupt line numbers
632	  for the devices may be configured via the irq module parameter.
633
634config GPIO_104_IDIO_16
635	tristate "ACCES 104-IDIO-16 GPIO support"
636	depends on PC104
637	select ISA_BUS_API
638	select GPIOLIB_IRQCHIP
639	help
640	  Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
641	  104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
642	  base port addresses for the devices may be configured via the base
643	  module parameter. The interrupt line numbers for the devices may be
644	  configured via the irq module parameter.
645
646config GPIO_104_IDI_48
647	tristate "ACCES 104-IDI-48 GPIO support"
648	depends on PC104
649	select ISA_BUS_API
650	select GPIOLIB_IRQCHIP
651	help
652	  Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
653	  104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
654	  the devices may be configured via the base module parameter. The
655	  interrupt line numbers for the devices may be configured via the irq
656	  module parameter.
657
658config GPIO_F7188X
659	tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
660	help
661	  This option enables support for GPIOs found on Fintek Super-I/O
662	  chips F71869, F71869A, F71882FG, F71889F and F81866.
663
664	  To compile this driver as a module, choose M here: the module will
665	  be called f7188x-gpio.
666
667config GPIO_GPIO_MM
668	tristate "Diamond Systems GPIO-MM GPIO support"
669	depends on PC104
670	select ISA_BUS_API
671	help
672	  Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
673
674	  The Diamond Systems GPIO-MM device features 48 lines of digital I/O
675	  via the emulation of dual 82C55A PPI chips. This driver provides GPIO
676	  support for these 48 channels of digital I/O.
677
678	  The base port addresses for the devices may be configured via the base
679	  array module parameter.
680
681config GPIO_IT87
682	tristate "IT87xx GPIO support"
683	help
684	  Say yes here to support GPIO functionality of IT87xx Super I/O chips.
685
686	  This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
687	  supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
688
689	  To compile this driver as a module, choose M here: the module will
690	  be called gpio_it87
691
692config GPIO_SCH
693	tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
694	depends on (X86 || COMPILE_TEST) && PCI
695	select MFD_CORE
696	select LPC_SCH
697	help
698	  Say yes here to support GPIO interface on Intel Poulsbo SCH,
699	  Intel Tunnel Creek processor, Intel Centerton processor or
700	  Intel Quark X1000 SoC.
701
702	  The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
703	  powered by the core power rail and are turned off during sleep
704	  modes (S3 and higher). The remaining four GPIOs are powered by
705	  the Intel SCH suspend power supply. These GPIOs remain
706	  active during S3. The suspend powered GPIOs can be used to wake the
707	  system from the Suspend-to-RAM state.
708
709	  The Intel Tunnel Creek processor has 5 GPIOs powered by the
710	  core power rail and 9 from suspend power supply.
711
712	  The Intel Centerton processor has a total of 30 GPIO pins.
713	  Twenty-one are powered by the core power rail and 9 from the
714	  suspend power supply.
715
716	  The Intel Quark X1000 SoC has 2 GPIOs powered by the core
717	  power well and 6 from the suspend power well.
718
719config GPIO_SCH311X
720	tristate "SMSC SCH311x SuperI/O GPIO"
721	help
722	  Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
723	  SCH3116 "Super I/O" chipsets.
724
725	  To compile this driver as a module, choose M here: the module will
726	  be called gpio-sch311x.
727
728config GPIO_TS5500
729	tristate "TS-5500 DIO blocks and compatibles"
730	depends on TS5500 || COMPILE_TEST
731	help
732	  This driver supports Digital I/O exposed by pin blocks found on some
733	  Technologic Systems platforms. It includes, but is not limited to, 3
734	  blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
735	  LCD port.
736
737config GPIO_WINBOND
738	tristate "Winbond Super I/O GPIO support"
739	select ISA_BUS_API
740	help
741	  This option enables support for GPIOs found on Winbond Super I/O
742	  chips.
743	  Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
744	  supported.
745
746	  You will need to provide a module parameter "gpios", or a
747	  boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
748	  ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
749
750	  To compile this driver as a module, choose M here: the module will
751	  be called gpio-winbond.
752
753config GPIO_WS16C48
754	tristate "WinSystems WS16C48 GPIO support"
755	select ISA_BUS_API
756	select GPIOLIB_IRQCHIP
757	help
758	  Enables GPIO support for the WinSystems WS16C48. The base port
759	  addresses for the devices may be configured via the base module
760	  parameter. The interrupt line numbers for the devices may be
761	  configured via the irq module parameter.
762
763endmenu
764
765menu "I2C GPIO expanders"
766	depends on I2C
767
768config GPIO_ADP5588
769	tristate "ADP5588 I2C GPIO expander"
770	help
771	  This option enables support for 18 GPIOs found
772	  on Analog Devices ADP5588 GPIO Expanders.
773
774config GPIO_ADP5588_IRQ
775	bool "Interrupt controller support for ADP5588"
776	depends on GPIO_ADP5588=y
777	help
778	  Say yes here to enable the adp5588 to be used as an interrupt
779	  controller. It requires the driver to be built in the kernel.
780
781config GPIO_ADNP
782	tristate "Avionic Design N-bit GPIO expander"
783	depends on OF_GPIO
784	select GPIOLIB_IRQCHIP
785	help
786	  This option enables support for N GPIOs found on Avionic Design
787	  I2C GPIO expanders. The register space will be extended by powers
788	  of two, so the controller will need to accommodate for that. For
789	  example: if a controller provides 48 pins, 6 registers will be
790	  enough to represent all pins, but the driver will assume a
791	  register layout for 64 pins (8 registers).
792
793config GPIO_MAX7300
794	tristate "Maxim MAX7300 GPIO expander"
795	select GPIO_MAX730X
796	help
797	  GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
798
799config GPIO_MAX732X
800	tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
801	help
802	  Say yes here to support the MAX7319, MAX7320-7327 series of I2C
803	  Port Expanders. Each IO port on these chips has a fixed role of
804	  Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
805	  Input and Output (designed by 'P'). The combinations are listed
806	  below:
807
808	  8 bits:	max7319 (8I), max7320 (8O), max7321 (8P),
809		  	max7322 (4I4O), max7323 (4P4O)
810
811	  16 bits:	max7324 (8I8O), max7325 (8P8O),
812		  	max7326 (4I12O), max7327 (4P12O)
813
814	  Board setup code must specify the model to use, and the start
815	  number for these GPIOs.
816
817config GPIO_MAX732X_IRQ
818	bool "Interrupt controller support for MAX732x"
819	depends on GPIO_MAX732X=y
820	select GPIOLIB_IRQCHIP
821	help
822	  Say yes here to enable the max732x to be used as an interrupt
823	  controller. It requires the driver to be built in the kernel.
824
825config GPIO_MC9S08DZ60
826	bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
827	depends on I2C=y && MACH_MX35_3DS
828	help
829	  Select this to enable the MC9S08DZ60 GPIO driver
830
831config GPIO_PCA953X
832	tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
833	help
834	  Say yes here to provide access to several register-oriented
835	  SMBus I/O expanders, made mostly by NXP or TI.  Compatible
836	  models include:
837
838	  4 bits:	pca9536, pca9537
839
840	  8 bits:	max7310, max7315, pca6107, pca9534, pca9538, pca9554,
841			pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
842
843	  16 bits:	max7312, max7313, pca9535, pca9539, pca9555, pca9575,
844			tca6416
845
846	  24 bits:	tca6424
847
848	  40 bits:	pca9505, pca9698
849
850config GPIO_PCA953X_IRQ
851	bool "Interrupt controller support for PCA953x"
852	depends on GPIO_PCA953X=y
853	select GPIOLIB_IRQCHIP
854	help
855	  Say yes here to enable the pca953x to be used as an interrupt
856	  controller. It requires the driver to be built in the kernel.
857
858config GPIO_PCF857X
859	tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
860	select GPIOLIB_IRQCHIP
861	select IRQ_DOMAIN
862	help
863	  Say yes here to provide access to most "quasi-bidirectional" I2C
864	  GPIO expanders used for additional digital outputs or inputs.
865	  Most of these parts are from NXP, though TI is a second source for
866	  some of them.  Compatible models include:
867
868	  8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
869	            pca9670, pca9672, pca9674, pca9674a,
870	  	    max7328, max7329
871
872	  16 bits:  pcf8575, pcf8575c, pca8575,
873	            pca9671, pca9673, pca9675
874
875	  Your board setup code will need to declare the expanders in
876	  use, and assign numbers to the GPIOs they expose.  Those GPIOs
877	  can then be used from drivers and other kernel code, just like
878	  other GPIOs, but only accessible from task contexts.
879
880	  This driver provides an in-kernel interface to those GPIOs using
881	  platform-neutral GPIO calls.
882
883config GPIO_TPIC2810
884	tristate "TPIC2810 8-Bit I2C GPO expander"
885	help
886	  Say yes here to enable the GPO driver for the TI TPIC2810 chip.
887
888	  To compile this driver as a module, choose M here: the module will
889	  be called gpio-tpic2810.
890
891config GPIO_TS4900
892	tristate "Technologic Systems FPGA I2C GPIO"
893	depends on SOC_IMX6 || COMPILE_TEST
894	select REGMAP_I2C
895	help
896	  Say yes here to enabled the GPIO driver for Technologic's FPGA core.
897	  Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
898
899endmenu
900
901menu "MFD GPIO expanders"
902
903config GPIO_ADP5520
904	tristate "GPIO Support for ADP5520 PMIC"
905	depends on PMIC_ADP5520
906	help
907	  This option enables support for on-chip GPIO found
908	  on Analog Devices ADP5520 PMICs.
909
910config GPIO_ALTERA_A10SR
911	tristate "Altera Arria10 System Resource GPIO"
912	depends on MFD_ALTERA_A10SR
913	help
914	  Driver for Arria10 Development Kit GPIO expansion which
915	  includes reads of pushbuttons and DIP switches as well
916	  as writes to LEDs.
917
918config GPIO_ARIZONA
919	tristate "Wolfson Microelectronics Arizona class devices"
920	depends on MFD_ARIZONA
921	help
922	  Support for GPIOs on Wolfson Arizona class devices.
923
924config GPIO_BD9571MWV
925	tristate "ROHM BD9571 GPIO support"
926	depends on MFD_BD9571MWV
927	help
928	  Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
929	  available on the ROHM PMIC in total, both of which can also
930	  generate interrupts.
931
932	  This driver can also be built as a module. If so, the module
933	  will be called gpio-bd9571mwv.
934
935config GPIO_CRYSTAL_COVE
936	tristate "GPIO support for Crystal Cove PMIC"
937	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
938	select GPIOLIB_IRQCHIP
939	help
940	  Support for GPIO pins on Crystal Cove PMIC.
941
942	  Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
943	  inside.
944
945	  This driver can also be built as a module. If so, the module will be
946	  called gpio-crystalcove.
947
948config GPIO_CS5535
949	tristate "AMD CS5535/CS5536 GPIO support"
950	depends on X86 || MIPS || COMPILE_TEST
951	depends on MFD_CS5535
952	help
953	  The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
954	  can be used for quite a number of things.  The CS5535/6 is found on
955	  AMD Geode and Lemote Yeeloong devices.
956
957	  If unsure, say N.
958
959config GPIO_DA9052
960	tristate "Dialog DA9052 GPIO"
961	depends on PMIC_DA9052
962	help
963	  Say yes here to enable the GPIO driver for the DA9052 chip.
964
965config GPIO_DA9055
966	tristate "Dialog Semiconductor DA9055 GPIO"
967	depends on MFD_DA9055
968	help
969	  Say yes here to enable the GPIO driver for the DA9055 chip.
970
971	  The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
972	  be controller by this driver.
973
974	  If driver is built as a module it will be called gpio-da9055.
975
976config GPIO_DLN2
977	tristate "Diolan DLN2 GPIO support"
978	depends on MFD_DLN2
979	select GPIOLIB_IRQCHIP
980
981	help
982	  Select this option to enable GPIO driver for the Diolan DLN2
983	  board.
984
985	  This driver can also be built as a module. If so, the module
986	  will be called gpio-dln2.
987
988config HTC_EGPIO
989	bool "HTC EGPIO support"
990	depends on GPIOLIB && ARM
991	help
992	    This driver supports the CPLD egpio chip present on
993	    several HTC phones.  It provides basic support for input
994	    pins, output pins, and irqs.
995
996config GPIO_JANZ_TTL
997	tristate "Janz VMOD-TTL Digital IO Module"
998	depends on MFD_JANZ_CMODIO
999	help
1000	  This enables support for the Janz VMOD-TTL Digital IO module.
1001	  This driver provides support for driving the pins in output
1002	  mode only. Input mode is not supported.
1003
1004config GPIO_KEMPLD
1005	tristate "Kontron ETX / COMexpress GPIO"
1006	depends on MFD_KEMPLD
1007	help
1008	  This enables support for the PLD GPIO interface on some Kontron ETX
1009	  and COMexpress (ETXexpress) modules.
1010
1011	  This driver can also be built as a module. If so, the module will be
1012	  called gpio-kempld.
1013
1014config GPIO_LP3943
1015	tristate "TI/National Semiconductor LP3943 GPIO expander"
1016	depends on MFD_LP3943
1017	help
1018	  GPIO driver for LP3943 MFD.
1019	  LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1020	  Open drain outputs are required for this usage.
1021
1022config GPIO_LP873X
1023	tristate "TI LP873X GPO"
1024	depends on MFD_TI_LP873X
1025	help
1026	  This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1027	  on LP873X PMICs.
1028
1029	  This driver can also be built as a module. If so, the module will be
1030          called gpio-lp873x.
1031
1032config GPIO_LP87565
1033	tristate "TI LP87565 GPIO"
1034	depends on MFD_TI_LP87565
1035	help
1036	  This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1037	  on LP87565 PMICs.
1038
1039	  This driver can also be built as a module. If so, the module will be
1040	  called gpio-lp87565.
1041
1042config GPIO_MAX77620
1043	tristate "GPIO support for PMIC MAX77620 and MAX20024"
1044	depends on MFD_MAX77620
1045	help
1046	  GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1047	  MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1048	  driver also provides interrupt support for each of the gpios.
1049	  Say yes here to enable the max77620 to be used as gpio controller.
1050
1051config GPIO_MSIC
1052	bool "Intel MSIC mixed signal gpio support"
1053	depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
1054	help
1055	  Enable support for GPIO on intel MSIC controllers found in
1056	  intel MID devices
1057
1058config GPIO_PALMAS
1059	bool "TI PALMAS series PMICs GPIO"
1060	depends on MFD_PALMAS
1061	help
1062	  Select this option to enable GPIO driver for the TI PALMAS
1063	  series chip family.
1064
1065config GPIO_RC5T583
1066	bool "RICOH RC5T583 GPIO"
1067	depends on MFD_RC5T583
1068	help
1069	  Select this option to enable GPIO driver for the Ricoh RC5T583
1070	  chip family.
1071	  This driver provides the support for driving/reading the gpio pins
1072	  of RC5T583 device through standard gpio library.
1073
1074config GPIO_STMPE
1075	bool "STMPE GPIOs"
1076	depends on MFD_STMPE
1077	depends on OF_GPIO
1078	select GPIOLIB_IRQCHIP
1079	help
1080	  This enables support for the GPIOs found on the STMPE I/O
1081	  Expanders.
1082
1083config GPIO_TC3589X
1084	bool "TC3589X GPIOs"
1085	depends on MFD_TC3589X
1086	depends on OF_GPIO
1087	select GPIOLIB_IRQCHIP
1088	help
1089	  This enables support for the GPIOs found on the TC3589X
1090	  I/O Expander.
1091
1092config GPIO_TIMBERDALE
1093	bool "Support for timberdale GPIO IP"
1094	depends on MFD_TIMBERDALE
1095	---help---
1096	Add support for the GPIO IP in the timberdale FPGA.
1097
1098config GPIO_TPS65086
1099	tristate "TI TPS65086 GPO"
1100	depends on MFD_TPS65086
1101	help
1102	  This driver supports the GPO on TI TPS65086x PMICs.
1103
1104config GPIO_TPS65218
1105	tristate "TPS65218 GPIO"
1106	depends on MFD_TPS65218
1107	help
1108	  Select this option to enable GPIO driver for the TPS65218
1109	  chip family.
1110
1111config GPIO_TPS6586X
1112	bool "TPS6586X GPIO"
1113	depends on MFD_TPS6586X
1114	help
1115	  Select this option to enable GPIO driver for the TPS6586X
1116	  chip family.
1117
1118config GPIO_TPS65910
1119	bool "TPS65910 GPIO"
1120	depends on MFD_TPS65910
1121	help
1122	  Select this option to enable GPIO driver for the TPS65910
1123	  chip family.
1124
1125config GPIO_TPS65912
1126	tristate "TI TPS65912 GPIO"
1127	depends on MFD_TPS65912
1128	help
1129	  This driver supports TPS65912 gpio chip
1130
1131config GPIO_TPS68470
1132	bool "TPS68470 GPIO"
1133	depends on MFD_TPS68470
1134	help
1135	  Select this option to enable GPIO driver for the TPS68470
1136	  chip family.
1137	  There are 7 GPIOs and few sensor related GPIOs supported
1138	  by the TPS68470. While the 7 GPIOs can be configured as
1139	  input or output as appropriate, the sensor related GPIOs
1140	  are "output only" GPIOs.
1141
1142	  This driver config is bool, as the GPIO functionality
1143	  of the TPS68470 must be available before dependent
1144	  drivers are loaded.
1145
1146config GPIO_TWL4030
1147	tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1148	depends on TWL4030_CORE
1149	help
1150	  Say yes here to access the GPIO signals of various multi-function
1151	  power management chips from Texas Instruments.
1152
1153config GPIO_TWL6040
1154	tristate "TWL6040 GPO"
1155	depends on TWL6040_CORE
1156	help
1157	  Say yes here to access the GPO signals of twl6040
1158	  audio chip from Texas Instruments.
1159
1160config GPIO_UCB1400
1161	tristate "Philips UCB1400 GPIO"
1162	depends on UCB1400_CORE
1163	help
1164	  This enables support for the Philips UCB1400 GPIO pins.
1165	  The UCB1400 is an AC97 audio codec.
1166
1167config GPIO_WHISKEY_COVE
1168	tristate "GPIO support for Whiskey Cove PMIC"
1169	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1170	select GPIOLIB_IRQCHIP
1171	help
1172	  Support for GPIO pins on Whiskey Cove PMIC.
1173
1174	  Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1175	  inside.
1176
1177	  This driver can also be built as a module. If so, the module will be
1178	  called gpio-wcove.
1179
1180config GPIO_WM831X
1181	tristate "WM831x GPIOs"
1182	depends on MFD_WM831X
1183	help
1184	  Say yes here to access the GPIO signals of WM831x power management
1185	  chips from Wolfson Microelectronics.
1186
1187config GPIO_WM8350
1188	tristate "WM8350 GPIOs"
1189	depends on MFD_WM8350
1190	help
1191	  Say yes here to access the GPIO signals of WM8350 power management
1192	  chips from Wolfson Microelectronics.
1193
1194config GPIO_WM8994
1195	tristate "WM8994 GPIOs"
1196	depends on MFD_WM8994
1197	help
1198	  Say yes here to access the GPIO signals of WM8994 audio hub
1199	  CODECs from Wolfson Microelectronics.
1200
1201endmenu
1202
1203menu "PCI GPIO expanders"
1204	depends on PCI
1205
1206config GPIO_AMD8111
1207	tristate "AMD 8111 GPIO driver"
1208	depends on X86 || COMPILE_TEST
1209	help
1210	  The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1211
1212	  Note, that usually system firmware/ACPI handles GPIO pins on their
1213	  own and users might easily break their systems with uncarefull usage
1214	  of this driver!
1215
1216	  If unsure, say N
1217
1218config GPIO_BT8XX
1219	tristate "BT8XX GPIO abuser"
1220	depends on VIDEO_BT848=n
1221	help
1222	  The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1223	  as a cheap PCI GPIO card.
1224
1225	  This chip can be found on Miro, Hauppauge and STB TV-cards.
1226
1227	  The card needs to be physically altered for using it as a
1228	  GPIO card. For more information on how to build a GPIO card
1229	  from a BT8xx TV card, see the documentation file at
1230	  Documentation/bt8xxgpio.txt
1231
1232	  If unsure, say N.
1233
1234config GPIO_INTEL_MID
1235	bool "Intel MID GPIO support"
1236	depends on X86_INTEL_MID
1237	select GPIOLIB_IRQCHIP
1238	help
1239	  Say Y here to support Intel MID GPIO.
1240
1241config GPIO_MERRIFIELD
1242	tristate "Intel Merrifield GPIO support"
1243	depends on X86_INTEL_MID
1244	select GPIOLIB_IRQCHIP
1245	help
1246	  Say Y here to support Intel Merrifield GPIO.
1247
1248config GPIO_ML_IOH
1249	tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1250	depends on X86 || COMPILE_TEST
1251	select GENERIC_IRQ_CHIP
1252	help
1253	  ML7213 is companion chip for Intel Atom E6xx series.
1254	  This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1255	  Hub) which is for IVI(In-Vehicle Infotainment) use.
1256	  This driver can access the IOH's GPIO device.
1257
1258config GPIO_PCH
1259	tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1260	depends on X86_32 || MIPS || COMPILE_TEST
1261	select GENERIC_IRQ_CHIP
1262	help
1263	  This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1264	  which is an IOH(Input/Output Hub) for x86 embedded processor.
1265	  This driver can access PCH GPIO device.
1266
1267	  This driver also can be used for LAPIS Semiconductor IOH(Input/
1268	  Output Hub), ML7223 and ML7831.
1269	  ML7223 IOH is for MP(Media Phone) use.
1270	  ML7831 IOH is for general purpose use.
1271	  ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1272	  ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1273
1274config GPIO_PCI_IDIO_16
1275	tristate "ACCES PCI-IDIO-16 GPIO support"
1276	select GPIOLIB_IRQCHIP
1277	help
1278	  Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1279	  generated when any of the inputs change state (low to high or high to
1280	  low). Input filter control is not supported by this driver, and the
1281	  input filters are deactivated by this driver.
1282
1283config GPIO_PCIE_IDIO_24
1284	tristate "ACCES PCIe-IDIO-24 GPIO support"
1285	select GPIOLIB_IRQCHIP
1286	help
1287	  Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1288	  PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1289	  when any of the inputs change state (low to high or high to low).
1290	  Input filter control is not supported by this driver, and the input
1291	  filters are deactivated by this driver.
1292
1293config GPIO_RDC321X
1294	tristate "RDC R-321x GPIO support"
1295	select MFD_CORE
1296	select MFD_RDC321X
1297	help
1298	  Support for the RDC R321x SoC GPIOs over southbridge
1299	  PCI configuration space.
1300
1301config GPIO_SODAVILLE
1302	bool "Intel Sodaville GPIO support"
1303	depends on X86 && OF
1304	select GPIO_GENERIC
1305	select GENERIC_IRQ_CHIP
1306	help
1307	  Say Y here to support Intel Sodaville GPIO.
1308
1309endmenu
1310
1311menu "SPI GPIO expanders"
1312	depends on SPI_MASTER
1313
1314config GPIO_74X164
1315	tristate "74x164 serial-in/parallel-out 8-bits shift register"
1316	depends on OF_GPIO
1317	help
1318	  Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1319	  shift registers. This driver can be used to provide access
1320	  to more gpio outputs.
1321
1322config GPIO_MAX3191X
1323	tristate "Maxim MAX3191x industrial serializer"
1324	select CRC8
1325	help
1326	  GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1327	  MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1328	  chip to make 8 digital 24V inputs available via SPI.  Supports
1329	  CRC checksums to guard against electromagnetic interference,
1330	  as well as undervoltage and overtemperature detection.
1331
1332config GPIO_MAX7301
1333	tristate "Maxim MAX7301 GPIO expander"
1334	select GPIO_MAX730X
1335	help
1336	  GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1337
1338config GPIO_MC33880
1339	tristate "Freescale MC33880 high-side/low-side switch"
1340	help
1341	  SPI driver for Freescale MC33880 high-side/low-side switch.
1342	  This provides GPIO interface supporting inputs and outputs.
1343
1344config GPIO_PISOSR
1345	tristate "Generic parallel-in/serial-out shift register"
1346	help
1347	  GPIO driver for SPI compatible parallel-in/serial-out shift
1348	  registers. These are input only devices.
1349
1350config GPIO_XRA1403
1351	tristate "EXAR XRA1403 16-bit GPIO expander"
1352	select REGMAP_SPI
1353	help
1354	  GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1355
1356endmenu
1357
1358menu "USB GPIO expanders"
1359	depends on USB
1360
1361config GPIO_VIPERBOARD
1362	tristate "Viperboard GPIO a & b support"
1363	depends on MFD_VIPERBOARD
1364	help
1365	  Say yes here to access the GPIO signals of Nano River
1366	  Technologies Viperboard. There are two GPIO chips on the
1367	  board: gpioa and gpiob.
1368          See viperboard API specification and Nano
1369          River Tech's viperboard.h for detailed meaning
1370          of the module parameters.
1371
1372endmenu
1373
1374endif
1375