xref: /linux/drivers/gpio/Kconfig (revision 500920fa76819b4909a32081e153bce80ce74824)
1# SPDX-License-Identifier: GPL-2.0-only
2#
3# GPIO infrastructure and drivers
4#
5
6config GPIOLIB_LEGACY
7	def_bool y
8
9config HAVE_SHARED_GPIOS
10	bool
11
12menuconfig GPIOLIB
13	bool "GPIO Support"
14	help
15	  This enables GPIO support through the generic GPIO library.
16	  You only need to enable this if you also want to enable
17	  one or more of the GPIO drivers below.
18
19	  If unsure, say N.
20
21if GPIOLIB
22
23config GPIOLIB_FASTPATH_LIMIT
24	int "Maximum number of GPIOs for fast path"
25	range 32 512
26	default 512
27	help
28	  This adjusts the point at which certain APIs will switch from
29	  using a stack allocated buffer to a dynamically allocated buffer.
30
31	  You shouldn't need to change this unless you really need to
32	  optimize either stack space or performance. Change this carefully
33	  since setting an incorrect value could cause stack corruption.
34
35config OF_GPIO
36	def_bool y
37	depends on OF
38	depends on HAS_IOMEM
39
40config GPIO_ACPI
41	def_bool y
42	depends on ACPI
43
44config GPIOLIB_IRQCHIP
45	select IRQ_DOMAIN
46	bool
47
48config GPIO_SHARED
49	def_bool y
50	depends on HAVE_SHARED_GPIOS || COMPILE_TEST
51	select AUXILIARY_BUS
52
53config DEBUG_GPIO
54	bool "Debug GPIO calls"
55	depends on DEBUG_KERNEL
56	help
57	  Say Y here to add some extra checks and diagnostics to GPIO calls.
58	  These checks help ensure that GPIOs have been properly initialized
59	  before they are used, and that sleeping calls are not made from
60	  non-sleeping contexts.  They can make bitbanged serial protocols
61	  slower.  The diagnostics help catch the type of setup errors
62	  that are most common when setting up new platforms or boards.
63
64config GPIO_SYSFS
65	bool "/sys/class/gpio/... (sysfs interface)" if EXPERT
66	depends on SYSFS
67	select GPIO_CDEV # We need to encourage the new ABI
68	help
69	  Say Y here to add the legacy sysfs interface for GPIOs.
70
71	  This ABI is deprecated. If you want to use GPIO from userspace,
72	  use the character device /dev/gpiochipN with the appropriate
73	  ioctl() operations instead.
74
75config GPIO_SYSFS_LEGACY
76	bool "Enable legacy functionalities of the sysfs interface"
77	depends on GPIO_SYSFS
78	default y if GPIO_SYSFS
79	help
80	  Say Y here if you want to enable the legacy, global GPIO
81	  numberspace-based functionalities of the sysfs interface.
82
83config GPIO_CDEV
84	bool "Character device (/dev/gpiochipN) support" if EXPERT
85	default y
86	help
87	  Say Y here to add the character device /dev/gpiochipN interface
88	  for GPIOs. The character device allows userspace to control GPIOs
89	  using ioctl() operations.
90
91	  Only say N if you are sure that the GPIO character device is not
92	  required.
93
94	  If unsure, say Y.
95
96config GPIO_CDEV_V1
97	bool "Support GPIO ABI Version 1"
98	default y
99	depends on GPIO_CDEV
100	help
101	  Say Y here to support version 1 of the GPIO CDEV ABI.
102
103	  This ABI version is deprecated.
104	  Please use the latest ABI for new developments.
105
106	  If unsure, say Y.
107
108config GPIO_GENERIC
109	depends on HAS_IOMEM # Only for IOMEM drivers
110	tristate
111
112config GPIO_REGMAP
113	select REGMAP
114	tristate
115
116config GPIO_SWNODE_UNDEFINED
117	bool
118	help
119	  This adds a special place holder for software nodes to contain an
120	  undefined GPIO reference, this is primarily used by SPI to allow a
121	  list of GPIO chip selects to mark a certain chip select as being
122	  controlled the SPI device's internal chip select mechanism and not
123	  a GPIO.
124
125# put drivers in the right section, in alphabetical order
126
127# This symbol is selected by both I2C and SPI expanders
128config GPIO_MAX730X
129	tristate
130
131config GPIO_IDIO_16
132	tristate
133	select REGMAP_IRQ
134	select GPIOLIB_IRQCHIP
135	select GPIO_REGMAP
136	help
137	  Enables support for the idio-16 library functions. The idio-16 library
138	  provides functions to facilitate communication with devices within the
139	  ACCES IDIO-16 family such as the 104-IDIO-16 and the PCI-IDIO-16.
140
141	  If built as a module its name will be gpio-idio-16.
142
143menu "Memory mapped GPIO drivers"
144	depends on HAS_IOMEM
145
146config GPIO_74XX_MMIO
147	tristate "GPIO driver for 74xx-ICs with MMIO access"
148	depends on OF_GPIO
149	select GPIO_GENERIC
150	help
151	  Say yes here to support GPIO functionality for 74xx-compatible ICs
152	  with MMIO access. Compatible models include:
153	    1 bit:	741G125 (Input), 741G74 (Output)
154	    2 bits:	742G125 (Input), 7474 (Output)
155	    4 bits:	74125 (Input), 74175 (Output)
156	    6 bits:	74365 (Input), 74174 (Output)
157	    8 bits:	74244 (Input), 74273 (Output)
158	    16 bits:	741624 (Input), 7416374 (Output)
159
160config GPIO_ALTERA
161	tristate "Altera GPIO"
162	select GPIOLIB_IRQCHIP
163	help
164	  Say Y or M here to build support for the Altera PIO device.
165
166	  If driver is built as a module it will be called gpio-altera.
167
168config GPIO_AMDPT
169	tristate "AMD Promontory GPIO support"
170	depends on ACPI
171	select GPIO_GENERIC
172	help
173	  Driver for GPIO functionality on Promontory IOHub.
174	  Requires ACPI ASL code to enumerate as a platform device.
175
176config GPIO_ASPEED
177	tristate "Aspeed GPIO support"
178	depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
179	select GPIOLIB_IRQCHIP
180	help
181	  Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
182
183config GPIO_ASPEED_SGPIO
184	bool "Aspeed SGPIO support"
185	depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
186	select GPIO_GENERIC
187	select GPIOLIB_IRQCHIP
188	help
189	  Say Y here to support Aspeed AST2500 SGPIO functionality.
190
191config GPIO_ATH79
192	tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
193	default y if ATH79
194	depends on ATH79 || COMPILE_TEST
195	select GPIO_GENERIC
196	select GPIOLIB_IRQCHIP
197	help
198	  Select this option to enable GPIO driver for
199	  Atheros AR71XX/AR724X/AR913X SoC devices.
200
201config GPIO_RASPBERRYPI_EXP
202	tristate "Raspberry Pi 3 GPIO Expander"
203	default RASPBERRYPI_FIRMWARE
204	depends on OF_GPIO
205	# Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
206	# happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
207	depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
208	help
209	  Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
210	  the firmware mailbox to communicate with VideoCore on BCM283x chips.
211
212config GPIO_BCM_KONA
213	bool "Broadcom Kona GPIO"
214	depends on ARCH_BCM_MOBILE || COMPILE_TEST
215	select GPIOLIB_IRQCHIP
216	help
217	  Turn on GPIO support for Broadcom "Kona" chips.
218
219config GPIO_BCM_XGS_IPROC
220	tristate "BRCM XGS iProc GPIO support"
221	depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST)
222	select GPIO_GENERIC
223	select GPIOLIB_IRQCHIP
224	default ARCH_BCM_IPROC
225	help
226	  Say yes here to enable GPIO support for Broadcom XGS iProc SoCs.
227
228config GPIO_BLZP1600
229	tristate "Blaize BLZP1600 GPIO support"
230	default y if ARCH_BLAIZE
231	depends on ARCH_BLAIZE || COMPILE_TEST
232	depends on OF_GPIO
233	select GPIO_GENERIC
234	select GPIOLIB_IRQCHIP
235	help
236	  Say Y or M here to add support for the Blaize BLZP1600 GPIO device.
237	  The controller is based on the Verisilicon Microelectronics GPIO APB v0.2
238	  IP block.
239
240config GPIO_BRCMSTB
241	tristate "BRCMSTB GPIO support"
242	default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
243	depends on OF_GPIO && (ARCH_BRCMSTB || ARCH_BCM2835 || BMIPS_GENERIC || COMPILE_TEST)
244	select GPIO_GENERIC
245	select IRQ_DOMAIN
246	help
247	  Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
248
249config GPIO_CADENCE
250	tristate "Cadence GPIO support"
251	depends on OF_GPIO
252	select GPIO_GENERIC
253	select GPIOLIB_IRQCHIP
254	help
255	  Say yes here to enable support for Cadence GPIO controller.
256
257config GPIO_CLPS711X
258	tristate "CLPS711X GPIO support"
259	depends on ARCH_CLPS711X || COMPILE_TEST
260	select GPIO_GENERIC
261	help
262	  Say yes here to support GPIO on CLPS711X SoCs.
263
264config GPIO_DAVINCI
265	tristate "TI Davinci/Keystone GPIO support"
266	default y if ARCH_DAVINCI
267	depends on ((ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3)) || COMPILE_TEST
268	select GPIOLIB_IRQCHIP
269	help
270	  Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
271
272config GPIO_DWAPB
273	tristate "Synopsys DesignWare APB GPIO driver"
274	select GPIO_GENERIC
275	select GPIOLIB_IRQCHIP
276	help
277	  Say Y or M here to build support for the Synopsys DesignWare APB
278	  GPIO block.
279
280config GPIO_EIC_SPRD
281	tristate "Spreadtrum EIC support"
282	depends on ARCH_SPRD || COMPILE_TEST
283	depends on OF_GPIO
284	select GPIOLIB_IRQCHIP
285	help
286	  Say yes here to support Spreadtrum EIC device.
287
288config GPIO_EM
289	tristate "Emma Mobile GPIO"
290	depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
291	help
292	  Say yes here to support GPIO on Renesas Emma Mobile SoCs.
293
294config GPIO_EN7523
295	tristate "Airoha GPIO support"
296	depends on ARCH_AIROHA
297	default ARCH_AIROHA
298	select GPIO_GENERIC
299	select GPIOLIB_IRQCHIP
300	help
301	  Say Y or M here to support the GPIO controller block on the
302	  Airoha EN7523 SoC. It supports two banks of 32 GPIOs.
303
304config GPIO_EP93XX
305	def_bool y
306	depends on ARCH_EP93XX || COMPILE_TEST
307	select GPIO_GENERIC
308	select GPIOLIB_IRQCHIP
309
310config GPIO_EXAR
311	tristate "Support for GPIO pins on XR17V352/354/358"
312	depends on SERIAL_8250_EXAR
313	select REGMAP_MMIO
314	help
315	  Selecting this option will enable handling of GPIO pins present
316	  on Exar XR17V352/354/358 chips.
317
318config GPIO_GE_FPGA
319	bool "GE FPGA based GPIO"
320	depends on GE_FPGA || COMPILE_TEST
321	select GPIO_GENERIC
322	help
323	  Support for common GPIO functionality provided on some GE Single Board
324	  Computers.
325
326	  This driver provides basic support (configure as input or output, read
327	  and write pin state) for GPIO implemented in a number of GE single
328	  board computers.
329
330config GPIO_FTGPIO010
331	bool "Faraday FTGPIO010 GPIO"
332	depends on OF_GPIO
333	select GPIO_GENERIC
334	select GPIOLIB_IRQCHIP
335	default (ARCH_GEMINI || ARCH_MOXART)
336	help
337	  Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
338	  Cortina systems Gemini platforms, Moxa ART and others.
339
340config GPIO_GENERIC_PLATFORM
341	tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
342	select GPIO_GENERIC
343	help
344	  Say yes here to support basic platform_device memory-mapped GPIO controllers.
345
346config GPIO_GRANITERAPIDS
347	tristate "Intel Granite Rapids-D vGPIO support"
348	depends on X86 || COMPILE_TEST
349	select GPIOLIB_IRQCHIP
350	help
351	  Select this to enable virtual GPIO support on platforms with the
352	  following SoCs:
353
354	  - Intel Granite Rapids-D
355
356	  The driver enables basic GPIO functionality and implements interrupt
357	  support. The virtual GPIO driver controls GPIO lines via a firmware
358	  interface. The physical GPIO pins reside on device that is external
359	  from the main SoC package, such as a BMC or a CPLD.
360
361	  To compile this driver as a module, choose M here: the module will
362	  be called gpio-graniterapids.
363
364config GPIO_GRGPIO
365	tristate "Aeroflex Gaisler GRGPIO support"
366	depends on OF || COMPILE_TEST
367	select GPIO_GENERIC
368	select GPIOLIB_IRQCHIP
369	help
370	  Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
371	  VHDL IP core library.
372
373config GPIO_HISI
374	tristate "HiSilicon GPIO controller driver"
375	depends on ARM64 || COMPILE_TEST
376	select GPIO_GENERIC
377	select GPIOLIB_IRQCHIP
378	help
379	  Say Y or M here to build support for the HiSilicon GPIO controller
380	  driver GPIO block.
381	  This GPIO controller supports double-edge interrupt and multi-core
382	  concurrent access.
383
384config GPIO_HLWD
385	tristate "Nintendo Wii (Hollywood) GPIO"
386	depends on OF_GPIO
387	select GPIO_GENERIC
388	select GPIOLIB_IRQCHIP
389	help
390	  Select this to support the GPIO controller of the Nintendo Wii.
391
392	  If unsure, say N.
393
394config GPIO_ICH
395	tristate "Intel ICH GPIO"
396	depends on (X86 && LPC_ICH) || (COMPILE_TEST && HAS_IOPORT)
397	help
398	  Say yes here to support the GPIO functionality of a number of Intel
399	  ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
400	  ICH9, ICH10, Series 5/3400 (e.g. Ibex Peak), Series 6/C200 (e.g.
401	  Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
402
403	  If unsure, say N.
404
405config GPIO_IMX_SCU
406       def_bool y
407       depends on IMX_SCU
408
409config GPIO_IXP4XX
410	bool "Intel IXP4xx GPIO"
411	depends on (ARCH_IXP4XX && OF) || COMPILE_TEST
412	select GPIO_GENERIC
413	select GPIOLIB_IRQCHIP
414	select IRQ_DOMAIN_HIERARCHY
415	help
416	  Say yes here to support the GPIO functionality of a number of Intel
417	  IXP4xx series of chips.
418
419	  If unsure, say N.
420
421config GPIO_LOGICVC
422	tristate "Xylon LogiCVC GPIO support"
423	depends on MFD_SYSCON && OF
424	help
425	  Say yes here to support GPIO functionality of the Xylon LogiCVC
426	  programmable logic block.
427
428config GPIO_LOONGSON
429	bool "Loongson-2/3 GPIO support"
430	depends on CPU_LOONGSON2EF || CPU_LOONGSON64
431	help
432	  Driver for GPIO functionality on Loongson-2F/3A/3B processors.
433
434config GPIO_LOONGSON_64BIT
435	tristate "Loongson 64 bit GPIO support"
436	depends on LOONGARCH || COMPILE_TEST
437	depends on OF_GPIO
438	select GPIO_GENERIC
439	select GPIOLIB_IRQCHIP
440	help
441	  Say yes here to support the GPIO functionality of a number of
442	  Loongson series of chips. The Loongson GPIO controller supports
443	  up to 60 GPIOS in total, 4 of which are dedicated GPIO pins, and
444	  the remaining 56 are reused with other functions, with edge or
445	  level triggered interrupts.
446
447config GPIO_LPC18XX
448	tristate "NXP LPC18XX/43XX GPIO support"
449	default y if ARCH_LPC18XX
450	depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
451	select IRQ_DOMAIN_HIERARCHY
452	select GPIOLIB_IRQCHIP
453	help
454	  Select this option to enable GPIO driver for
455	  NXP LPC18XX/43XX devices.
456
457config GPIO_LPC32XX
458	tristate "NXP LPC32XX GPIO support"
459	depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST)
460	help
461	  Select this option to enable GPIO driver for
462	  NXP LPC32XX devices.
463
464config GPIO_MB86S7X
465	tristate "GPIO support for Fujitsu MB86S7x Platforms"
466	help
467	  Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
468
469config GPIO_MENZ127
470	tristate "MEN 16Z127 GPIO support"
471	depends on MCB
472	select GPIO_GENERIC
473	help
474	  Say yes here to support the MEN 16Z127 GPIO Controller.
475
476config GPIO_MM_LANTIQ
477	bool "Lantiq Memory mapped GPIOs"
478	depends on LANTIQ && SOC_XWAY
479	help
480	  This enables support for memory mapped GPIOs on the External Bus Unit
481	  (EBU) found on Lantiq SoCs. The GPIOs are output only as they are
482	  created by attaching a 16-bit latch to the bus.
483
484config GPIO_MPC5200
485	def_bool y
486	depends on PPC_MPC52xx
487
488config GPIO_MPC8XXX
489	bool "MPC512x/MPC8xxx/QorIQ GPIO support"
490	depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
491		   FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
492		   COMPILE_TEST
493	select GPIO_GENERIC
494	select GPIOLIB_IRQCHIP
495	help
496	  Say Y here if you're going to use hardware that connects to the
497	  MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
498
499config GPIO_MT7621
500	bool "Mediatek MT7621 GPIO Support"
501	depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
502	depends on OF_GPIO
503	select GPIO_GENERIC
504	select GPIOLIB_IRQCHIP
505	help
506	  Say yes here to support the Mediatek MT7621 SoC GPIO device.
507
508config GPIO_MVEBU
509	bool "Marvell Orion and EBU GPIO support" if COMPILE_TEST
510	depends on PLAT_ORION || ARCH_MVEBU || COMPILE_TEST
511	default PLAT_ORION || ARCH_MVEBU
512	select GENERIC_IRQ_CHIP
513	select REGMAP_MMIO
514
515config GPIO_MXC
516	tristate "i.MX GPIO support"
517	depends on ARCH_MXC || COMPILE_TEST
518	select GPIO_GENERIC
519	select GENERIC_IRQ_CHIP
520
521config GPIO_MXS
522	bool "Freescale MXS GPIO support" if COMPILE_TEST
523	depends on ARCH_MXS || COMPILE_TEST
524	default y if ARCH_MXS
525	select GPIO_GENERIC
526	select GENERIC_IRQ_CHIP
527
528config GPIO_NOMADIK
529	bool "Nomadik GPIO driver"
530	depends on ARCH_U8500 || ARCH_NOMADIK || MACH_EYEQ5 || COMPILE_TEST
531	select GPIOLIB_IRQCHIP
532	help
533	  Say yes here to support the Nomadik SoC GPIO block. This block is also
534	  used by the Mobileye EyeQ5 SoC.
535
536	  It handles up to 32 GPIOs per bank, that can all be interrupt sources.
537	  It is deeply interconnected with the associated pinctrl driver as GPIO
538	  registers handle muxing ("alternate functions") as well.
539
540config GPIO_NPCM_SGPIO
541	bool "Nuvoton SGPIO support"
542	depends on ARCH_NPCM || COMPILE_TEST
543	select GPIOLIB_IRQCHIP
544	help
545	  Say Y here to support Nuvoton NPCM7XX/NPCM8XX SGPIO functionality.
546
547config GPIO_OCTEON
548	tristate "Cavium OCTEON GPIO"
549	depends on CAVIUM_OCTEON_SOC
550	default y
551	help
552	  Say yes here to support the on-chip GPIO lines on the OCTEON
553	  family of SOCs.
554
555config GPIO_OMAP
556	tristate "TI OMAP GPIO support"
557	depends on ARCH_OMAP || COMPILE_TEST
558	default y if ARCH_OMAP
559	select GENERIC_IRQ_CHIP
560	select GPIOLIB_IRQCHIP
561	help
562	  Say yes here to enable GPIO support for TI OMAP SoCs.
563
564config GPIO_PL061
565	tristate "PrimeCell PL061 GPIO support"
566	depends on ARM_AMBA || COMPILE_TEST
567	select IRQ_DOMAIN
568	select GPIOLIB_IRQCHIP
569	help
570	  Say yes here to support the PrimeCell PL061 GPIO device.
571
572config GPIO_POLARFIRE_SOC
573	bool "Microchip FPGA GPIO support"
574	select REGMAP_MMIO
575	help
576	  Say yes here to support the GPIO controllers on Microchip FPGAs.
577
578config GPIO_PXA
579	bool "PXA GPIO support"
580	depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST
581	select GPIOLIB_IRQCHIP
582	help
583	  Say yes here to support the PXA GPIO device.
584
585config GPIO_RCAR
586	tristate "Renesas R-Car and RZ/G GPIO support"
587	depends on ARCH_RENESAS || COMPILE_TEST
588	select GPIOLIB_IRQCHIP
589	help
590	  Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs.
591
592config GPIO_RDA
593	bool "RDA Micro GPIO controller support"
594	depends on ARCH_RDA || COMPILE_TEST
595	depends on OF_GPIO
596	select GPIO_GENERIC
597	select GPIOLIB_IRQCHIP
598	help
599	  Say Y here to support RDA Micro GPIO controller.
600
601config GPIO_REALTEK_OTTO
602	tristate "Realtek Otto GPIO support"
603	depends on MACH_REALTEK_RTL
604	default MACH_REALTEK_RTL
605	select GPIO_GENERIC
606	select GPIOLIB_IRQCHIP
607	help
608	  The GPIO controller on the Otto MIPS platform supports up to two
609	  banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs
610	  are grouped in four 8-bit wide ports.
611
612	  When built as a module, the module will be called realtek_otto_gpio.
613
614config GPIO_REG
615	bool
616	help
617	  A 32-bit single register GPIO fixed in/out implementation.  This
618	  can be used to represent any register as a set of GPIO signals.
619
620config GPIO_ROCKCHIP
621	tristate "Rockchip GPIO support"
622	depends on ARCH_ROCKCHIP || COMPILE_TEST
623	select GENERIC_IRQ_CHIP
624	select GPIOLIB_IRQCHIP
625	default ARCH_ROCKCHIP
626	help
627	  Say yes here to support GPIO on Rockchip SoCs.
628
629config GPIO_RTD
630	tristate "Realtek DHC GPIO support"
631	depends on ARCH_REALTEK || COMPILE_TEST
632	default y
633	select GPIOLIB_IRQCHIP
634	help
635	  This option enables support for GPIOs found on Realtek DHC(Digital
636	  Home Center) SoCs family, including RTD1295, RTD1315E, RTD1319,
637	  RTD1319D, RTD1395, RTD1619 and RTD1619B.
638
639	  Say yes here to support GPIO functionality and GPIO interrupt on
640	  Realtek DHC SoCs.
641
642config GPIO_SAMA5D2_PIOBU
643	tristate "SAMA5D2 PIOBU GPIO support"
644	depends on MFD_SYSCON
645	depends on OF_GPIO
646	depends on ARCH_AT91 || COMPILE_TEST
647	select GPIO_SYSCON
648	help
649	  Say yes here to use the PIOBU pins as GPIOs.
650
651	  PIOBU pins on the SAMA5D2 can be used as GPIOs.
652	  The difference from regular GPIOs is that they
653	  maintain their value during backup/self-refresh.
654
655config GPIO_SIFIVE
656	tristate "SiFive GPIO support"
657	depends on OF_GPIO
658	select IRQ_DOMAIN_HIERARCHY
659	select GPIO_GENERIC
660	select GPIOLIB_IRQCHIP
661	select REGMAP_MMIO
662	help
663	  Say yes here to support the GPIO device on SiFive SoCs.
664
665config GPIO_SIOX
666	tristate "SIOX GPIO support"
667	depends on SIOX
668	select GPIOLIB_IRQCHIP
669	help
670	  Say yes here to support SIOX I/O devices. These are units connected
671	  via a SIOX bus and have a number of fixed-direction I/O lines.
672
673config GPIO_SNPS_CREG
674	bool "Synopsys GPIO via CREG (Control REGisters) driver"
675	depends on ARC || COMPILE_TEST
676	depends on OF_GPIO
677	help
678	  This driver supports GPIOs via CREG on various Synopsys SoCs.
679	  This is a single-register MMIO GPIO driver for complex cases
680	  where only several fields in register belong to GPIO lines and
681	  each GPIO line owns a field with different length and on/off value.
682
683config GPIO_SPACEMIT_K1
684	tristate "SPACEMIT K1 GPIO support"
685	depends on ARCH_SPACEMIT || COMPILE_TEST
686	depends on OF_GPIO
687	select GPIO_GENERIC
688	select GPIOLIB_IRQCHIP
689	help
690	  Say yes here to support the SpacemiT's K1 GPIO device.
691
692config GPIO_SPEAR_SPICS
693	bool "ST SPEAr13xx SPI Chip Select as GPIO support"
694	depends on PLAT_SPEAR
695	select GENERIC_IRQ_CHIP
696	help
697	  Say yes here to support ST SPEAr SPI Chip Select as GPIO device.
698
699config GPIO_SPRD
700	tristate "Spreadtrum GPIO support"
701	depends on ARCH_SPRD || COMPILE_TEST
702	depends on OF_GPIO
703	select GPIOLIB_IRQCHIP
704	help
705	  Say yes here to support Spreadtrum GPIO device.
706
707config GPIO_STP_XWAY
708	bool "XWAY STP GPIOs"
709	depends on SOC_XWAY || COMPILE_TEST
710	depends on OF_GPIO
711	help
712	  This enables support for the Serial To Parallel (STP) unit found on
713	  XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
714	  that can be up to 24 bits. This peripheral is aimed at driving LEDs.
715	  Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and
716	  phy status.
717
718config GPIO_SYSCON
719	tristate "GPIO based on SYSCON"
720	depends on MFD_SYSCON && OF
721	help
722	  Say yes here to support GPIO functionality though SYSCON driver.
723
724config GPIO_TANGIER
725	tristate
726	select GPIOLIB_IRQCHIP
727	help
728	  GPIO support for Intel Tangier and compatible platforms.
729	  Currently supported:
730	   - Elkhart Lake
731	   - Merrifield
732
733	  If built as a module its name will be gpio-tangier.
734
735config GPIO_TB10X
736	bool "Abilis Systems TB10x GPIO controller"
737	depends on ARC_PLAT_TB10X || COMPILE_TEST
738	select GPIO_GENERIC
739	select GENERIC_IRQ_CHIP
740	select OF_GPIO
741
742config GPIO_TEGRA
743	tristate "NVIDIA Tegra GPIO support"
744	default ARCH_TEGRA
745	depends on ARCH_TEGRA || COMPILE_TEST
746	depends on OF_GPIO
747	select GPIOLIB_IRQCHIP
748	select IRQ_DOMAIN_HIERARCHY
749	help
750	  Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
751
752config GPIO_TEGRA186
753	tristate "NVIDIA Tegra186 GPIO support"
754	default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || ARCH_TEGRA_234_SOC
755	depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || ARCH_TEGRA_234_SOC || COMPILE_TEST
756	depends on OF_GPIO
757	select GPIOLIB_IRQCHIP
758	select IRQ_DOMAIN_HIERARCHY
759	help
760	  Say yes here to support GPIO pins on NVIDIA Tegra186, 194 and 234 SoCs.
761
762config GPIO_TS4800
763	tristate "TS-4800 DIO blocks and compatibles"
764	depends on OF_GPIO
765	depends on SOC_IMX51 || COMPILE_TEST
766	select GPIO_GENERIC
767	help
768	  This driver support TS-4800 FPGA GPIO controllers.
769
770config GPIO_THUNDERX
771	tristate "Cavium ThunderX/OCTEON-TX GPIO"
772	depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
773	depends on PCI_MSI
774	select GPIOLIB_IRQCHIP
775	select IRQ_DOMAIN_HIERARCHY
776	select IRQ_FASTEOI_HIERARCHY_HANDLERS
777	help
778	  Say yes here to support the on-chip GPIO lines on the ThunderX
779	  and OCTEON-TX families of SoCs.
780
781config GPIO_UNIPHIER
782	tristate "UniPhier GPIO support"
783	depends on ARCH_UNIPHIER || COMPILE_TEST
784	depends on OF_GPIO
785	select IRQ_DOMAIN_HIERARCHY
786	help
787	  Say yes here to support UniPhier GPIOs.
788
789config GPIO_VF610
790	tristate "VF610 GPIO support"
791	default y if SOC_VF610
792	depends on ARCH_MXC || COMPILE_TEST
793	select GPIOLIB_IRQCHIP
794	select GPIO_GENERIC
795	help
796	  Say yes here to support i.MX or Vybrid vf610 GPIOs.
797
798config GPIO_VISCONTI
799	tristate "Toshiba Visconti GPIO support"
800	depends on ARCH_VISCONTI || COMPILE_TEST
801	depends on OF_GPIO
802	select GPIOLIB_IRQCHIP
803	select GPIO_GENERIC
804	select IRQ_DOMAIN_HIERARCHY
805	help
806	  Say yes here to support GPIO on Tohisba Visconti.
807
808config GPIO_WCD934X
809	tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver"
810	depends on MFD_WCD934X && OF_GPIO
811	help
812         This driver is to support GPIO block found on the Qualcomm Technologies
813	 Inc WCD9340/WCD9341 Audio Codec.
814
815config GPIO_XGENE
816	bool "APM X-Gene GPIO controller support"
817	depends on ARM64 && OF_GPIO
818	help
819	  This driver is to support the GPIO block within the APM X-Gene SoC
820	  platform's generic flash controller. The GPIO pins are muxed with
821	  the generic flash controller's address and data pins. Say yes
822	  here to enable the GFC GPIO functionality.
823
824config GPIO_XGENE_SB
825	tristate "APM X-Gene GPIO standby controller support"
826	depends on (ARCH_XGENE || COMPILE_TEST)
827	select GPIO_GENERIC
828	select GPIOLIB_IRQCHIP
829	select IRQ_DOMAIN_HIERARCHY
830	help
831	  This driver supports the GPIO block within the APM X-Gene
832	  Standby Domain. Say yes here to enable the GPIO functionality.
833
834config GPIO_XILINX
835	tristate "Xilinx GPIO support"
836	select GPIOLIB_IRQCHIP
837	help
838	  Say yes here to support the Xilinx FPGA GPIO device.
839
840config GPIO_XLP
841	tristate "Cavium ThunderX2 GPIO support"
842	depends on ARCH_THUNDER2 || COMPILE_TEST
843	select GPIOLIB_IRQCHIP
844	help
845	  This driver provides support for GPIO interface on Cavium's ThunderX2
846	  CN99XX SoCs (Originally from Netlogic XLP).
847
848	  If unsure, say N.
849
850config GPIO_XTENSA
851	bool "Xtensa GPIO32 support"
852	depends on XTENSA
853	depends on HAVE_XTENSA_GPIO32
854	depends on !SMP
855	help
856	  Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
857	  and EXPSTATE (output) ports.
858
859config GPIO_ZEVIO
860	bool "LSI ZEVIO SoC memory mapped GPIOs"
861	depends on ARM
862	help
863	  Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
864
865config GPIO_ZYNQ
866	tristate "Xilinx Zynq GPIO support"
867	depends on ARCH_ZYNQ || ARCH_ZYNQMP || COMPILE_TEST
868	select GPIOLIB_IRQCHIP
869	help
870	  Say yes here to support Xilinx Zynq GPIO controller.
871
872config GPIO_ZYNQMP_MODEPIN
873	tristate "ZynqMP ps-mode pin GPIO configuration driver"
874	depends on ZYNQMP_FIRMWARE || COMPILE_TEST
875	default ZYNQMP_FIRMWARE
876	help
877	  Say yes here to support the ZynqMP ps-mode pin GPIO configuration
878	  driver.
879
880	  This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE
881	  is 4-bits boot mode pins. It sets and gets the status of
882	  the ps-mode pin. Every pin can be configured as input/output.
883
884config GPIO_LOONGSON1
885	tristate "Loongson1 GPIO support"
886	depends on MACH_LOONGSON32 || COMPILE_TEST
887	select GPIO_GENERIC
888	help
889	  Say Y or M here to support GPIO on Loongson1 SoCs.
890
891config GPIO_AMD_FCH
892	tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
893	help
894	  This option enables driver for GPIO on AMD's Fusion Controller Hub,
895	  as found on G-series SOCs (e.g. GX-412TC).
896
897	  Note: This driver doesn't register itself automatically, as it
898	  needs to be provided with platform-specific configuration.
899	  (See e.g. CONFIG_PCENGINES_APU2.)
900
901config GPIO_MSC313
902	bool "MStar MSC313 GPIO support"
903	depends on ARCH_MSTARV7 || COMPILE_TEST
904	default ARCH_MSTARV7
905	select GPIOLIB_IRQCHIP
906	select IRQ_DOMAIN_HIERARCHY
907	help
908	  Say Y here to support the main GPIO block on MStar/SigmaStar
909	  ARMv7-based SoCs.
910
911config GPIO_IDT3243X
912	tristate "IDT 79RC3243X GPIO support"
913	depends on MIKROTIK_RB532 || COMPILE_TEST
914	select GPIO_GENERIC
915	select GPIOLIB_IRQCHIP
916	help
917	  Select this option to enable GPIO driver for
918	  IDT 79RC3243X-based devices like Mikrotik RB532.
919
920	  To compile this driver as a module, choose M here: the module will
921	  be called gpio-idt3243x.
922
923endmenu
924
925menu "Port-mapped I/O GPIO drivers"
926	depends on X86 && HAS_IOPORT # I/O space access
927
928config GPIO_VX855
929	tristate "VIA VX855/VX875 GPIO"
930	depends on PCI
931	select MFD_CORE
932	select MFD_VX855
933	help
934	  Support access to the VX855/VX875 GPIO lines through the GPIO library.
935
936	  This driver provides common support for accessing the device.
937	  Additional drivers must be enabled in order to use the
938	  functionality of the device.
939
940config GPIO_I8255
941	tristate
942	select GPIO_REGMAP
943	help
944	  Enables support for the i8255 interface library functions. The i8255
945	  interface library provides functions to facilitate communication with
946	  interfaces compatible with the venerable Intel 8255 Programmable
947	  Peripheral Interface (PPI). The Intel 8255 PPI chip was first released
948	  in the early 1970s but compatible interfaces are nowadays typically
949	  found embedded in larger VLSI processing chips and FPGA components.
950
951	  If built as a module its name will be gpio-i8255.
952
953config GPIO_104_DIO_48E
954	tristate "ACCES 104-DIO-48E GPIO support"
955	depends on PC104
956	select ISA_BUS_API
957	select REGMAP_MMIO
958	select REGMAP_IRQ
959	select GPIOLIB_IRQCHIP
960	select GPIO_I8255
961	select I8254
962	help
963	  Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
964	  104-DIO-24E). The base port addresses for the devices may be
965	  configured via the base module parameter. The interrupt line numbers
966	  for the devices may be configured via the irq module parameter.
967
968config GPIO_104_IDIO_16
969	tristate "ACCES 104-IDIO-16 GPIO support"
970	depends on PC104
971	select ISA_BUS_API
972	select REGMAP_MMIO
973	select GPIO_IDIO_16
974	help
975	  Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
976	  104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
977	  base port addresses for the devices may be configured via the base
978	  module parameter. The interrupt line numbers for the devices may be
979	  configured via the irq module parameter.
980
981config GPIO_104_IDI_48
982	tristate "ACCES 104-IDI-48 GPIO support"
983	depends on PC104
984	select ISA_BUS_API
985	select REGMAP_MMIO
986	select REGMAP_IRQ
987	select GPIOLIB_IRQCHIP
988	select GPIO_REGMAP
989	help
990	  Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
991	  104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
992	  the devices may be configured via the base module parameter. The
993	  interrupt line numbers for the devices may be configured via the irq
994	  module parameter.
995
996config GPIO_F7188X
997	tristate "Fintek and Nuvoton Super-I/O GPIO support"
998	help
999	  This option enables support for GPIOs found on Fintek Super-I/O
1000	  chips F71869, F71869A, F71882FG, F71889F and F81866.
1001	  As well as Nuvoton Super-I/O chip NCT6126D.
1002
1003	  To compile this driver as a module, choose M here: the module will
1004	  be called f7188x-gpio.
1005
1006config GPIO_GPIO_MM
1007	tristate "Diamond Systems GPIO-MM GPIO support"
1008	depends on PC104
1009	select ISA_BUS_API
1010	select REGMAP_MMIO
1011	select GPIO_I8255
1012	help
1013	  Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
1014
1015	  The Diamond Systems GPIO-MM device features 48 lines of digital I/O
1016	  via the emulation of dual 82C55A PPI chips. This driver provides GPIO
1017	  support for these 48 channels of digital I/O.
1018
1019	  The base port addresses for the devices may be configured via the base
1020	  array module parameter.
1021
1022config GPIO_IT87
1023	tristate "IT87xx GPIO support"
1024	help
1025	  Say yes here to support GPIO functionality of IT87xx Super I/O chips.
1026
1027	  This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
1028	  supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
1029	  well.
1030
1031	  To compile this driver as a module, choose M here: the module will
1032	  be called gpio_it87.
1033
1034config GPIO_SCH
1035	tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
1036	depends on (X86 || COMPILE_TEST) && ACPI
1037	depends on LPC_SCH
1038	select GPIOLIB_IRQCHIP
1039	help
1040	  Say yes here to support GPIO interface on Intel Poulsbo SCH,
1041	  Intel Tunnel Creek processor, Intel Centerton processor or
1042	  Intel Quark X1000 SoC.
1043
1044	  The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
1045	  powered by the core power rail and are turned off during sleep
1046	  modes (S3 and higher). The remaining four GPIOs are powered by
1047	  the Intel SCH suspend power supply. These GPIOs remain
1048	  active during S3. The suspend-powered GPIOs can be used to wake the
1049	  system from the Suspend-to-RAM state.
1050
1051	  The Intel Tunnel Creek processor has 5 GPIOs powered by the
1052	  core power rail and 9 from suspend power supply.
1053
1054	  The Intel Centerton processor has a total of 30 GPIO pins.
1055	  Twenty-one are powered by the core power rail and 9 from the
1056	  suspend power supply.
1057
1058	  The Intel Quark X1000 SoC has 2 GPIOs powered by the core
1059	  power well and 6 from the suspend power well.
1060
1061config GPIO_SCH311X
1062	tristate "SMSC SCH311x SuperI/O GPIO"
1063	help
1064	  Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
1065	  SCH3116 "Super I/O" chipsets.
1066
1067	  To compile this driver as a module, choose M here: the module will
1068	  be called gpio-sch311x.
1069
1070config GPIO_TS5500
1071	tristate "TS-5500 DIO blocks and compatibles"
1072	depends on TS5500 || COMPILE_TEST
1073	help
1074	  This driver supports Digital I/O exposed by pin blocks found on some
1075	  Technologic Systems platforms. It includes, but is not limited to, 3
1076	  blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
1077	  LCD port.
1078
1079config GPIO_WINBOND
1080	tristate "Winbond Super I/O GPIO support"
1081	select ISA_BUS_API
1082	help
1083	  This option enables support for GPIOs found on Winbond Super I/O
1084	  chips.
1085	  Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
1086	  supported.
1087
1088	  You will need to provide a module parameter "gpios", or a
1089	  boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
1090	  ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
1091
1092	  To compile this driver as a module, choose M here: the module will
1093	  be called gpio-winbond.
1094
1095config GPIO_WS16C48
1096	tristate "WinSystems WS16C48 GPIO support"
1097	select ISA_BUS_API
1098	select REGMAP_IRQ
1099	select REGMAP_MMIO
1100	select GPIOLIB_IRQCHIP
1101	select GPIO_REGMAP
1102	help
1103	  Enables GPIO support for the WinSystems WS16C48. The base port
1104	  addresses for the devices may be configured via the base module
1105	  parameter. The interrupt line numbers for the devices may be
1106	  configured via the irq module parameter.
1107
1108endmenu
1109
1110menu "I2C GPIO expanders"
1111	depends on I2C
1112
1113config GPIO_ADNP
1114	tristate "Avionic Design N-bit GPIO expander"
1115	depends on OF_GPIO
1116	select GPIOLIB_IRQCHIP
1117	help
1118	  This option enables support for N GPIOs found on Avionic Design
1119	  I2C GPIO expanders. The register space will be extended by powers
1120	  of two, so the controller will need to accommodate for that. For
1121	  example: if a controller provides 48 pins, 6 registers will be
1122	  enough to represent all pins, but the driver will assume a
1123	  register layout for 64 pins (8 registers).
1124
1125config GPIO_FXL6408
1126	tristate "FXL6408 I2C GPIO expander"
1127	select GPIO_REGMAP
1128	select REGMAP_I2C
1129	help
1130	  GPIO driver for Fairchild Semiconductor FXL6408 GPIO expander.
1131
1132	  To compile this driver as a module, choose M here: the module will
1133	  be called gpio-fxl6408.
1134
1135config GPIO_DS4520
1136	tristate "DS4520 I2C GPIO expander"
1137	select REGMAP_I2C
1138	select GPIO_REGMAP
1139	help
1140	  GPIO driver for ADI DS4520 I2C-based GPIO expander.
1141	  Say yes here to enable the GPIO driver for the ADI DS4520 chip.
1142
1143	  To compile this driver as a module, choose M here: the module will
1144	  be called gpio-ds4520.
1145
1146config GPIO_GW_PLD
1147	tristate "Gateworks PLD GPIO Expander"
1148	depends on OF_GPIO
1149	help
1150	  Say yes here to provide access to the Gateworks I2C PLD GPIO
1151	  Expander. This is used at least on the Cambria GW2358-4.
1152
1153config GPIO_MAX7300
1154	tristate "Maxim MAX7300 GPIO expander"
1155	select GPIO_MAX730X
1156	help
1157	  GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
1158
1159config GPIO_MAX732X
1160	tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
1161	help
1162	  Say yes here to support the MAX7319, MAX7320-7327 series of I2C
1163	  Port Expanders. Each IO port on these chips has a fixed role of
1164	  Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
1165	  Input and Output (designed by 'P'). The combinations are listed
1166	  below:
1167
1168	  8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
1169	                max7322 (4I4O), max7323 (4P4O)
1170
1171	  16 bits:      max7324 (8I8O), max7325 (8P8O),
1172	                max7326 (4I12O), max7327 (4P12O)
1173
1174	  Board setup code must specify the model to use, and the start
1175	  number for these GPIOs.
1176
1177config GPIO_MAX732X_IRQ
1178	bool "Interrupt controller support for MAX732x"
1179	depends on GPIO_MAX732X=y
1180	select GPIOLIB_IRQCHIP
1181	help
1182	  Say yes here to enable the max732x to be used as an interrupt
1183	  controller. It requires the driver to be built in the kernel.
1184
1185config GPIO_PCA953X
1186	tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
1187	select REGMAP_I2C
1188	help
1189	  Say yes here to provide access to several register-oriented
1190	  SMBus I/O expanders, made mostly by NXP or TI.  Compatible
1191	  models include:
1192
1193	  4 bits:       pca9536, pca9537
1194
1195	  8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
1196	                pca9556, pca9557, pca9574, tca6408, tca9554, xra1202,
1197			pcal6408, pcal9554b, tca9538
1198
1199	  16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
1200	                tca6416, pca6416, pcal6416, pcal9535, pcal9555a, max7318,
1201			tca9539
1202
1203	  18 bits:	tca6418
1204
1205	  24 bits:      tca6424, pcal6524
1206
1207	  40 bits:      pca9505, pca9698, pca9506
1208
1209config GPIO_PCA953X_IRQ
1210	bool "Interrupt controller support for PCA953x"
1211	depends on GPIO_PCA953X
1212	select GPIOLIB_IRQCHIP
1213	help
1214	  Say yes here to enable the pca953x to be used as an interrupt
1215	  controller.
1216
1217config GPIO_PCA9570
1218	tristate "PCA9570 4-Bit I2C GPO expander"
1219	help
1220	  Say yes here to enable the GPO driver for the NXP PCA9570 chip.
1221
1222	  To compile this driver as a module, choose M here: the module will
1223	  be called gpio-pca9570.
1224
1225config GPIO_PCF857X
1226	tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
1227	select GPIOLIB_IRQCHIP
1228	select IRQ_DOMAIN
1229	help
1230	  Say yes here to provide access to most "quasi-bidirectional" I2C
1231	  GPIO expanders used for additional digital outputs or inputs.
1232	  Most of these parts are from NXP, though TI is a second source for
1233	  some of them.  Compatible models include:
1234
1235	  8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
1236	            pca9670, pca9672, pca9674, pca9674a,
1237	            max7328, max7329
1238
1239	  16 bits:  pcf8575, pcf8575c, pca8575,
1240	            pca9671, pca9673, pca9675
1241
1242	  Your board setup code will need to declare the expanders in
1243	  use, and assign numbers to the GPIOs they expose.  Those GPIOs
1244	  can then be used from drivers and other kernel code, just like
1245	  other GPIOs, but only accessible from task contexts.
1246
1247	  This driver provides an in-kernel interface to those GPIOs using
1248	  platform-neutral GPIO calls.
1249
1250config GPIO_TPIC2810
1251	tristate "TPIC2810 8-Bit I2C GPO expander"
1252	help
1253	  Say yes here to enable the GPO driver for the TI TPIC2810 chip.
1254
1255	  To compile this driver as a module, choose M here: the module will
1256	  be called gpio-tpic2810.
1257
1258config GPIO_TS4900
1259	tristate "Technologic Systems FPGA I2C GPIO"
1260	depends on SOC_IMX6 || COMPILE_TEST
1261	select REGMAP_I2C
1262	help
1263	  Say yes here to enabled the GPIO driver for Technologic's FPGA core.
1264	  Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
1265
1266endmenu
1267
1268menu "MFD GPIO expanders"
1269
1270config GPIO_ADP5520
1271	tristate "GPIO Support for ADP5520 PMIC"
1272	depends on PMIC_ADP5520
1273	help
1274	  This option enables support for on-chip GPIO found
1275	  on Analog Devices ADP5520 PMICs.
1276
1277config GPIO_ADP5585
1278	tristate "GPIO Support for ADP5585"
1279	depends on MFD_ADP5585
1280	select GPIOLIB_IRQCHIP
1281	help
1282	  This option enables support for the GPIO function found in the Analog
1283	  Devices ADP5585.
1284
1285config GPIO_ALTERA_A10SR
1286	tristate "Altera Arria10 System Resource GPIO"
1287	depends on MFD_ALTERA_A10SR
1288	help
1289	  Driver for Arria10 Development Kit GPIO expansion which
1290	  includes reads of pushbuttons and DIP switches as well
1291	  as writes to LEDs.
1292
1293config GPIO_ARIZONA
1294	tristate "Wolfson Microelectronics Arizona class devices"
1295	depends on MFD_ARIZONA
1296	help
1297	  Support for GPIOs on Wolfson Arizona class devices.
1298
1299config GPIO_BD71815
1300	tristate "ROHM BD71815 PMIC GPIO support"
1301	depends on MFD_ROHM_BD71828
1302	help
1303	  Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs
1304	  available on the ROHM PMIC.
1305
1306	  This driver can also be built as a module. If so, the module
1307	  will be called gpio-bd71815.
1308
1309config GPIO_BD71828
1310	tristate "ROHM BD71828 GPIO support"
1311	depends on MFD_ROHM_BD71828
1312	help
1313	  Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs
1314	  available on the ROHM PMIC in total. The GPIOs are limited to
1315	  outputs only and pins must be configured to GPIO outputs by
1316	  OTP. Enable this only if you want to use these pins as outputs.
1317
1318	  This driver can also be built as a module. If so, the module
1319	  will be called gpio-bd71828.
1320
1321config GPIO_BD9571MWV
1322	tristate "ROHM BD9571 GPIO support"
1323	depends on MFD_BD9571MWV
1324	help
1325	  Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
1326	  available on the ROHM PMIC in total, both of which can also
1327	  generate interrupts.
1328
1329	  This driver can also be built as a module. If so, the module
1330	  will be called gpio-bd9571mwv.
1331
1332config GPIO_CGBC
1333	tristate "Congatec Board Controller GPIO support"
1334	depends on MFD_CGBC
1335	help
1336	  Select this option to enable GPIO support for the Congatec Board
1337	  Controller.
1338
1339	  This driver can also be built as a module. If so, the module will be
1340	  called gpio-cgbc.
1341
1342config GPIO_CROS_EC
1343	tristate "ChromeOS EC GPIO support"
1344	depends on CROS_EC
1345	help
1346	  GPIO driver for the ChromeOS Embedded Controller (EC). GPIOs
1347	  cannot be set unless the system is unlocked.
1348
1349	  This driver can also be built as a module. If so, the module
1350	  will be called gpio-cros-ec.
1351
1352config GPIO_CRYSTAL_COVE
1353	tristate "GPIO support for Crystal Cove PMIC"
1354	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1355	select GPIOLIB_IRQCHIP
1356	help
1357	  Support for GPIO pins on Crystal Cove PMIC.
1358
1359	  Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC
1360	  inside.
1361
1362	  This driver can also be built as a module. If so, the module will be
1363	  called gpio-crystalcove.
1364
1365config GPIO_CS5535
1366	tristate "AMD CS5535/CS5536 GPIO support"
1367	depends on X86 || MIPS || COMPILE_TEST
1368	depends on MFD_CS5535
1369	help
1370	  The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1371	  can be used for quite a number of things.  The CS5535/6 is found on
1372	  AMD Geode and Lemote Yeeloong devices.
1373
1374	  If unsure, say N.
1375
1376config GPIO_DA9052
1377	tristate "Dialog DA9052 GPIO"
1378	depends on PMIC_DA9052
1379	help
1380	  Say yes here to enable the GPIO driver for the DA9052 chip.
1381
1382config GPIO_DA9055
1383	tristate "Dialog Semiconductor DA9055 GPIO"
1384	depends on MFD_DA9055
1385	help
1386	  Say yes here to enable the GPIO driver for the DA9055 chip.
1387
1388	  The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1389	  be controlled by this driver.
1390
1391	  If driver is built as a module it will be called gpio-da9055.
1392
1393config GPIO_DLN2
1394	tristate "Diolan DLN2 GPIO support"
1395	depends on MFD_DLN2
1396	select GPIOLIB_IRQCHIP
1397
1398	help
1399	  Select this option to enable GPIO driver for the Diolan DLN2
1400	  board.
1401
1402	  This driver can also be built as a module. If so, the module
1403	  will be called gpio-dln2.
1404
1405config HTC_EGPIO
1406	bool "HTC EGPIO support"
1407	depends on ARM || COMPILE_TEST
1408	help
1409	  This driver supports the CPLD egpio chip present on
1410	  several HTC phones.  It provides basic support for input
1411	  pins, output pins, and IRQs.
1412
1413config GPIO_ELKHARTLAKE
1414	tristate "Intel Elkhart Lake PSE GPIO support"
1415	depends on INTEL_EHL_PSE_IO
1416	select GPIO_TANGIER
1417	help
1418	  Select this option to enable GPIO support for Intel Elkhart Lake
1419	  PSE GPIO IP.
1420
1421	  To compile this driver as a module, choose M here: the module will
1422	  be called gpio-elkhartlake.
1423
1424config GPIO_JANZ_TTL
1425	tristate "Janz VMOD-TTL Digital IO Module"
1426	depends on MFD_JANZ_CMODIO
1427	help
1428	  This enables support for the Janz VMOD-TTL Digital IO module.
1429	  This driver provides support for driving the pins in output
1430	  mode only. Input mode is not supported.
1431
1432config GPIO_KEMPLD
1433	tristate "Kontron ETX / COMexpress GPIO"
1434	depends on MFD_KEMPLD
1435	help
1436	  This enables support for the PLD GPIO interface on some Kontron ETX
1437	  and COMexpress (ETXexpress) modules.
1438
1439	  This driver can also be built as a module. If so, the module will be
1440	  called gpio-kempld.
1441
1442config GPIO_LJCA
1443	tristate "INTEL La Jolla Cove Adapter GPIO support"
1444	depends on USB_LJCA
1445	select GPIOLIB_IRQCHIP
1446	default USB_LJCA
1447	help
1448	  Select this option to enable GPIO driver for the INTEL
1449	  La Jolla Cove Adapter (LJCA) board.
1450
1451	  This driver can also be built as a module. If so, the module
1452	  will be called gpio-ljca.
1453
1454config GPIO_LP3943
1455	tristate "TI/National Semiconductor LP3943 GPIO expander"
1456	depends on MFD_LP3943
1457	help
1458	  GPIO driver for LP3943 MFD.
1459	  LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1460	  Open drain outputs are required for this usage.
1461
1462config GPIO_LP873X
1463	tristate "TI LP873X GPO"
1464	depends on MFD_TI_LP873X
1465	help
1466	  This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1467	  on LP873X PMICs.
1468
1469	  This driver can also be built as a module. If so, the module will be
1470	  called gpio-lp873x.
1471
1472config GPIO_LP87565
1473	tristate "TI LP87565 GPIO"
1474	depends on MFD_TI_LP87565
1475	help
1476	  This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1477	  on LP87565 PMICs.
1478
1479	  This driver can also be built as a module. If so, the module will be
1480	  called gpio-lp87565.
1481
1482config GPIO_MACSMC
1483	tristate "Apple Mac SMC GPIO"
1484	depends on MFD_MACSMC
1485	help
1486	  Support for GPIOs controlled by the SMC microcontroller on Apple Mac
1487	  systems.
1488
1489	  This driver can also be built as a module. If so, the module will be
1490	  called gpio-macsmc.
1491
1492config GPIO_MADERA
1493	tristate "Cirrus Logic Madera class codecs"
1494	depends on PINCTRL_MADERA
1495	help
1496	  Support for GPIOs on Cirrus Logic Madera class codecs.
1497
1498config GPIO_MAX7360
1499	tristate "MAX7360 GPIO support"
1500	depends on MFD_MAX7360
1501	select GPIO_REGMAP
1502	select REGMAP_IRQ
1503	help
1504	  Allows to use MAX7360 I/O Expander PWM lines as GPIO and keypad COL
1505	  lines as GPO.
1506
1507	  This driver can also be built as a module. If so, the module will be
1508	  called gpio-max7360.
1509
1510config GPIO_MAX77620
1511	tristate "GPIO support for PMIC MAX77620 and MAX20024"
1512	depends on MFD_MAX77620
1513	select GPIOLIB_IRQCHIP
1514	help
1515	  GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1516	  MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1517	  driver also provides interrupt support for each of the GPIOs.
1518	  Say yes here to enable the max77620 to be used as GPIO controller.
1519
1520config GPIO_MAX77650
1521	tristate "Maxim MAX77650/77651 GPIO support"
1522	depends on MFD_MAX77650
1523	help
1524	  GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1525	  These chips have a single pin that can be configured as GPIO.
1526
1527config GPIO_MAX77759
1528	tristate "Maxim Integrated MAX77759 GPIO support"
1529	depends on MFD_MAX77759
1530	default MFD_MAX77759
1531	select GPIOLIB_IRQCHIP
1532	help
1533	  GPIO driver for MAX77759 PMIC from Maxim Integrated.
1534	  There are two GPIOs available on these chips in total, both of
1535	  which can also generate interrupts.
1536
1537	  This driver can also be built as a module. If so, the module will be
1538	  called gpio-max77759.
1539
1540config GPIO_NCT6694
1541	tristate "Nuvoton NCT6694 GPIO controller support"
1542	depends on MFD_NCT6694
1543	select GENERIC_IRQ_CHIP
1544	select GPIOLIB_IRQCHIP
1545	help
1546	  This driver supports 8 GPIO pins per bank that can all be interrupt
1547	  sources.
1548
1549	  This driver can also be built as a module. If so, the module will be
1550	  called gpio-nct6694.
1551
1552config GPIO_PALMAS
1553	tristate "TI PALMAS series PMICs GPIO"
1554	depends on MFD_PALMAS
1555	help
1556	  Select this option to enable GPIO driver for the TI PALMAS
1557	  series chip family.
1558
1559config GPIO_PMIC_EIC_SPRD
1560	tristate "Spreadtrum PMIC EIC support"
1561	depends on MFD_SC27XX_PMIC || COMPILE_TEST
1562	depends on OF_GPIO
1563	select GPIOLIB_IRQCHIP
1564	help
1565	  Say yes here to support Spreadtrum PMIC EIC device.
1566
1567config GPIO_QIXIS_FPGA
1568	tristate "NXP QIXIS FPGA GPIO support"
1569	depends on MFD_SIMPLE_MFD_I2C || COMPILE_TEST
1570	select GPIO_REGMAP
1571	help
1572	  This enables support for the GPIOs found in the QIXIS FPGA which is
1573	  integrated on some NXP Layerscape boards such as LX2160ARDB and
1574	  LS1046AQDS.
1575
1576config GPIO_RC5T583
1577	bool "RICOH RC5T583 GPIO"
1578	depends on MFD_RC5T583
1579	help
1580	  Select this option to enable GPIO driver for the Ricoh RC5T583
1581	  chip family.
1582	  This driver provides the support for driving/reading the GPIO pins
1583	  of RC5T583 device through standard GPIO library.
1584
1585config GPIO_SL28CPLD
1586	tristate "Kontron sl28cpld GPIO support"
1587	depends on MFD_SL28CPLD || COMPILE_TEST
1588	select GPIO_REGMAP
1589	select GPIOLIB_IRQCHIP
1590	select REGMAP_IRQ
1591	help
1592	  This enables support for the GPIOs found on the Kontron sl28 CPLD.
1593
1594	  This driver can also be built as a module. If so, the module will be
1595	  called gpio-sl28cpld.
1596
1597config GPIO_STMPE
1598	tristate "STMPE GPIOs"
1599	depends on MFD_STMPE
1600	depends on OF_GPIO
1601	select GPIOLIB_IRQCHIP
1602	help
1603	  This enables support for the GPIOs found on the STMPE I/O
1604	  Expanders.
1605
1606config GPIO_TC3589X
1607	bool "TC3589X GPIOs"
1608	depends on MFD_TC3589X
1609	depends on OF_GPIO
1610	select GPIOLIB_IRQCHIP
1611	help
1612	  This enables support for the GPIOs found on the TC3589X
1613	  I/O Expander.
1614
1615config GPIO_TIMBERDALE
1616	bool "Support for timberdale GPIO IP"
1617	depends on MFD_TIMBERDALE
1618	select GPIOLIB_IRQCHIP
1619	help
1620	Add support for the GPIO IP in the timberdale FPGA.
1621
1622config GPIO_TN48M_CPLD
1623	tristate "Delta Networks TN48M switch CPLD GPIO driver"
1624	depends on MFD_TN48M_CPLD || COMPILE_TEST
1625	select GPIO_REGMAP
1626	help
1627	  This enables support for the GPIOs found on the Delta
1628	  Networks TN48M switch Lattice CPLD. It provides 12 pins in total,
1629	  they are input-only or output-only type.
1630
1631	  This driver can also be built as a module. If so, the
1632	  module will be called gpio-tn48m.
1633
1634config GPIO_TPS65086
1635	tristate "TI TPS65086 GPO"
1636	depends on MFD_TPS65086
1637	help
1638	  This driver supports the GPO on TI TPS65086x PMICs.
1639
1640config GPIO_TPS65218
1641	tristate "TPS65218 GPIO"
1642	depends on MFD_TPS65218
1643	help
1644	  Select this option to enable GPIO driver for the TPS65218
1645	  chip family.
1646
1647config GPIO_TPS65219
1648	tristate "TPS65219 GPIO"
1649	depends on MFD_TPS65219
1650	default MFD_TPS65219
1651	help
1652	  Select this option to enable GPIO driver for the TPS65219 chip
1653	  family.
1654	  GPIO0 is statically configured as either input or output prior to
1655	  Linux boot. It is used for MULTI_DEVICE_ENABLE function. This setting
1656	  is statically configured by NVM. GPIO0 can't be used as a generic
1657	  GPIO. It's either a GPO when MULTI_DEVICE_EN=0 or a GPI when
1658	  MULTI_DEVICE_EN=1.
1659
1660	  This driver can also be built as a module. If so, the module will be
1661	  called gpio_tps65219.
1662
1663config GPIO_TPS6586X
1664	bool "TPS6586X GPIO"
1665	depends on MFD_TPS6586X
1666	help
1667	  Select this option to enable GPIO driver for the TPS6586X
1668	  chip family.
1669
1670config GPIO_TPS65910
1671	bool "TPS65910 GPIO"
1672	depends on MFD_TPS65910
1673	help
1674	  Select this option to enable GPIO driver for the TPS65910
1675	  chip family.
1676
1677config GPIO_TPS65912
1678	tristate "TI TPS65912 GPIO"
1679	depends on MFD_TPS65912
1680	help
1681	  This driver supports TPS65912 GPIO chip.
1682
1683config GPIO_TPS68470
1684	tristate "TPS68470 GPIO"
1685	depends on INTEL_SKL_INT3472
1686	help
1687	  Select this option to enable GPIO driver for the TPS68470
1688	  chip family.
1689	  There are 7 GPIOs and few sensor-related GPIOs supported
1690	  by the TPS68470. While the 7 GPIOs can be configured as
1691	  input or output as appropriate, the sensor related GPIOs
1692	  are "output only" GPIOs.
1693
1694config GPIO_TQMX86
1695	tristate "TQ-Systems TQMx86 GPIO"
1696	depends on MFD_TQMX86 || COMPILE_TEST
1697	depends on HAS_IOPORT_MAP
1698	select GPIOLIB_IRQCHIP
1699	help
1700	  This driver supports GPIO on the TQMX86 IO controller.
1701
1702config GPIO_TWL4030
1703	tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1704	depends on TWL4030_CORE
1705	help
1706	  Say yes here to access the GPIO signals of various multi-function
1707	  power management chips from Texas Instruments.
1708
1709config GPIO_TWL6040
1710	tristate "TWL6040 GPO"
1711	depends on TWL6040_CORE
1712	help
1713	  Say yes here to access the GPO signals of twl6040
1714	  audio chip from Texas Instruments.
1715
1716config GPIO_WHISKEY_COVE
1717	tristate "GPIO support for Whiskey Cove PMIC"
1718	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1719	select GPIOLIB_IRQCHIP
1720	help
1721	  Support for GPIO pins on Whiskey Cove PMIC.
1722
1723	  Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC
1724	  inside.
1725
1726	  This driver can also be built as a module. If so, the module will be
1727	  called gpio-wcove.
1728
1729config GPIO_WM831X
1730	tristate "WM831x GPIOs"
1731	depends on MFD_WM831X
1732	help
1733	  Say yes here to access the GPIO signals of WM831x power management
1734	  chips from Wolfson Microelectronics.
1735
1736config GPIO_WM8350
1737	tristate "WM8350 GPIOs"
1738	depends on MFD_WM8350
1739	help
1740	  Say yes here to access the GPIO signals of WM8350 power management
1741	  chips from Wolfson Microelectronics.
1742
1743config GPIO_WM8994
1744	tristate "WM8994 GPIOs"
1745	depends on MFD_WM8994
1746	help
1747	  Say yes here to access the GPIO signals of WM8994 audio hub
1748	  CODECs from Wolfson Microelectronics.
1749
1750endmenu
1751
1752menu "PCI GPIO expanders"
1753	depends on PCI
1754
1755config GPIO_AMD8111
1756	tristate "AMD 8111 GPIO driver"
1757	depends on X86 || COMPILE_TEST
1758	depends on HAS_IOPORT_MAP
1759	help
1760	  The AMD 8111 southbridge contains 32 GPIO pins which can be used.
1761
1762	  Note that usually system firmware/ACPI handles GPIO pins on their
1763	  own and users might easily break their systems with uncareful usage
1764	  of this driver!
1765
1766	  If unsure, say N
1767
1768config GPIO_BT8XX
1769	tristate "BT8XX GPIO abuser"
1770	depends on VIDEO_BT848=n || COMPILE_TEST
1771	help
1772	  The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1773	  as a cheap PCI GPIO card.
1774
1775	  This chip can be found on Miro, Hauppauge and STB TV-cards.
1776
1777	  The card needs to be physically altered for using it as a
1778	  GPIO card. For more information on how to build a GPIO card
1779	  from a BT8xx TV card, see the documentation file at
1780	  Documentation/driver-api/gpio/bt8xxgpio.rst
1781
1782	  If unsure, say N.
1783
1784config GPIO_MERRIFIELD
1785	tristate "Intel Merrifield GPIO support"
1786	depends on X86_INTEL_MID
1787	select GPIO_TANGIER
1788	help
1789	  Say Y here to support Intel Merrifield GPIO.
1790
1791config GPIO_MLXBF
1792	tristate "Mellanox BlueField SoC GPIO"
1793	depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1794	select GPIO_GENERIC
1795	help
1796	  Say Y here if you want GPIO support on Mellanox BlueField SoC.
1797
1798config GPIO_MLXBF2
1799	tristate "Mellanox BlueField 2 SoC GPIO"
1800	depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1801	select GPIO_GENERIC
1802	select GPIOLIB_IRQCHIP
1803	help
1804	  Say Y here if you want GPIO support on Mellanox BlueField 2 SoC.
1805
1806config GPIO_MLXBF3
1807	tristate "Mellanox BlueField 3 SoC GPIO"
1808	depends on (MELLANOX_PLATFORM && ARM64) || COMPILE_TEST
1809	select GPIO_GENERIC
1810	select GPIOLIB_IRQCHIP
1811	help
1812	  Say Y if you want GPIO support on Mellanox BlueField 3 SoC.
1813	  This GPIO controller supports interrupt handling and enables the
1814	  manipulation of certain GPIO pins.
1815	  This controller should be used in parallel with pinctrl-mlxbf3 to
1816	  control the desired GPIOs.
1817	  This driver can also be built as a module called mlxbf3-gpio.
1818
1819config GPIO_ML_IOH
1820	tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1821	depends on X86 || COMPILE_TEST
1822	select GENERIC_IRQ_CHIP
1823	help
1824	  ML7213 is companion chip for Intel Atom E6xx series.
1825	  This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output
1826	  Hub) which is for IVI (In-Vehicle Infotainment) use.
1827	  This driver can access the IOH's GPIO device.
1828
1829config GPIO_PCH
1830	tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO"
1831	depends on X86_32 || MIPS || COMPILE_TEST
1832	select GENERIC_IRQ_CHIP
1833	help
1834	  This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff,
1835	  which is an IOH (Input/Output Hub) for x86 embedded processor.
1836	  This driver can access PCH GPIO device.
1837
1838	  This driver also can be used for LAPIS Semiconductor IOH (Input/
1839	  Output Hub), ML7223 and ML7831.
1840	  ML7223 IOH is for MP (Media Phone) use.
1841	  ML7831 IOH is for general purpose use.
1842	  ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1843	  ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1844
1845config GPIO_PCI_IDIO_16
1846	tristate "ACCES PCI-IDIO-16 GPIO support"
1847	select REGMAP_MMIO
1848	select GPIO_IDIO_16
1849	help
1850	  Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1851	  generated when any of the inputs change state (low to high or high to
1852	  low). Input filter control is not supported by this driver, and the
1853	  input filters are deactivated by this driver.
1854
1855config GPIO_PCIE_IDIO_24
1856	tristate "ACCES PCIe-IDIO-24 GPIO support"
1857	select REGMAP_IRQ
1858	select REGMAP_MMIO
1859	select GPIOLIB_IRQCHIP
1860	select GPIO_REGMAP
1861	help
1862	  Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1863	  PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1864	  when any of the inputs change state (low to high or high to low).
1865	  Input filter control is not supported by this driver, and the input
1866	  filters are deactivated by this driver.
1867
1868config GPIO_RDC321X
1869	tristate "RDC R-321x GPIO support"
1870	select MFD_CORE
1871	select MFD_RDC321X
1872	help
1873	  Support for the RDC R321x SoC GPIOs over southbridge
1874	  PCI configuration space.
1875
1876config GPIO_SODAVILLE
1877	bool "Intel Sodaville GPIO support"
1878	depends on X86 && OF
1879	select GPIO_GENERIC
1880	select GENERIC_IRQ_CHIP
1881	help
1882	  Say Y here to support Intel Sodaville GPIO.
1883
1884endmenu
1885
1886menu "SPI GPIO expanders"
1887	depends on SPI_MASTER
1888
1889config GPIO_74X164
1890	tristate "74x164 serial-in/parallel-out 8-bits shift register"
1891	help
1892	  Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1893	  shift registers. This driver can be used to provide access
1894	  to more GPIO outputs.
1895
1896config GPIO_MAX3191X
1897	tristate "Maxim MAX3191x industrial serializer"
1898	select CRC8
1899	help
1900	  GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1901	  MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1902	  chip to make 8 digital 24V inputs available via SPI.  Supports
1903	  CRC checksums to guard against electromagnetic interference,
1904	  as well as undervoltage and overtemperature detection.
1905
1906config GPIO_MAX7301
1907	tristate "Maxim MAX7301 GPIO expander"
1908	select GPIO_MAX730X
1909	help
1910	  GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1911
1912config GPIO_MC33880
1913	tristate "Freescale MC33880 high-side/low-side switch"
1914	help
1915	  SPI driver for Freescale MC33880 high-side/low-side switch.
1916	  This provides GPIO interface supporting inputs and outputs.
1917
1918config GPIO_PISOSR
1919	tristate "Generic parallel-in/serial-out shift register"
1920	help
1921	  GPIO driver for SPI compatible parallel-in/serial-out shift
1922	  registers. These are input only devices.
1923
1924config GPIO_XRA1403
1925	tristate "EXAR XRA1403 16-bit GPIO expander"
1926	select REGMAP_SPI
1927	help
1928	  GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1929
1930config GPIO_MOXTET
1931	tristate "Turris Mox Moxtet bus GPIO expander"
1932	depends on MOXTET
1933	help
1934	  Say yes here if you are building for the Turris Mox router.
1935	  This is the driver needed for configuring the GPIOs via the Moxtet
1936	  bus. For example the Mox module with SFP cage needs this driver
1937	  so that phylink can use corresponding GPIOs.
1938
1939endmenu
1940
1941menu "USB GPIO expanders"
1942	depends on USB
1943
1944config GPIO_VIPERBOARD
1945	tristate "Viperboard GPIO a & b support"
1946	depends on MFD_VIPERBOARD
1947	help
1948	  Say yes here to access the GPIO signals of Nano River
1949	  Technologies Viperboard. There are two GPIO chips on the
1950	  board: gpioa and gpiob.
1951	  See viperboard API specification and Nano
1952	  River Tech's viperboard.h for detailed meaning
1953	  of the module parameters.
1954
1955config GPIO_MPSSE
1956	tristate "FTDI MPSSE GPIO support"
1957	select GPIOLIB_IRQCHIP
1958	help
1959	  GPIO driver for FTDI's MPSSE interface. These can do input and
1960	  output. Each MPSSE provides 16 IO pins.
1961
1962config GPIO_USBIO
1963	tristate "Intel USBIO GPIO support"
1964	depends on USB_USBIO
1965	default USB_USBIO
1966	help
1967	  Select this option to enable GPIO driver for the INTEL
1968	  USBIO driver stack.
1969
1970	  This driver can also be built as a module. If so, the module
1971	  will be called gpio_usbio.
1972
1973endmenu
1974
1975menu "Virtual GPIO drivers"
1976
1977config GPIO_AGGREGATOR
1978	tristate "GPIO Aggregator"
1979	select CONFIGFS_FS
1980	select DEV_SYNC_PROBE
1981	help
1982	  Say yes here to enable the GPIO Aggregator, which provides a way to
1983	  aggregate existing GPIO lines into a new virtual GPIO chip.
1984	  This can serve the following purposes:
1985	    - Assign permissions for a collection of GPIO lines to a user,
1986	    - Export a collection of GPIO lines to a virtual machine,
1987	    - Provide a generic driver for a GPIO-operated device in an
1988	      industrial control context, to be operated from userspace using
1989	      the GPIO chardev interface.
1990
1991config GPIO_LATCH
1992	tristate "GPIO latch driver"
1993	help
1994	  Say yes here to enable a driver for GPIO multiplexers based on latches
1995	  connected to other GPIOs.
1996
1997config GPIO_MOCKUP
1998	tristate "GPIO Testing Driver (DEPRECATED)"
1999	select IRQ_SIM
2000	help
2001	  This module is DEPRECATED. Please consider using gpio-sim instead.
2002
2003	  This enables GPIO Testing driver, which provides a way to test GPIO
2004	  subsystem through sysfs (or char device) and debugfs.
2005	  User could use it through the script in
2006	  tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
2007	  it.
2008
2009config GPIO_VIRTIO
2010	tristate "VirtIO GPIO support"
2011	depends on VIRTIO
2012	select GPIOLIB_IRQCHIP
2013	help
2014	  Say Y here to enable guest support for virtio-based GPIO controllers.
2015
2016	  These virtual GPIOs can be routed to real GPIOs or attached to
2017	  simulators on the host (like QEMU).
2018
2019config GPIO_SIM
2020	tristate "GPIO Simulator Module"
2021	select IRQ_SIM
2022	select CONFIGFS_FS
2023	select DEV_SYNC_PROBE
2024	help
2025	  This enables the GPIO simulator - a configfs-based GPIO testing
2026	  driver.
2027
2028config GPIO_SHARED_PROXY
2029	tristate "Proxy driver for non-exclusive GPIOs"
2030	default m
2031	depends on GPIO_SHARED || COMPILE_TEST
2032	select AUXILIARY_BUS
2033	help
2034	  This enables the GPIO shared proxy driver - an abstraction layer
2035	  for GPIO pins that are shared by multiple devices.
2036
2037endmenu
2038
2039menu "GPIO Debugging utilities"
2040
2041config GPIO_SLOPPY_LOGIC_ANALYZER
2042	tristate "Sloppy GPIO logic analyzer"
2043	depends on (GPIOLIB || COMPILE_TEST) && CPUSETS && DEBUG_FS && EXPERT
2044	help
2045	  This option enables support for a sloppy logic analyzer using polled
2046	  GPIOs. Use the 'tools/gpio/gpio-sloppy-logic-analyzer' script with
2047	  this driver. The script will make it easier to use and will also
2048	  isolate a CPU for the polling task. Note that this is a last resort
2049	  analyzer which can be affected by latencies, non-deterministic code
2050	  paths, or NMIs. However, for e.g. remote development, it may be useful
2051	  to get a first view and aid further debugging.
2052
2053	  If this driver is built as a module it will be called
2054	  'gpio-sloppy-logic-analyzer'.
2055
2056config GPIO_VIRTUSER
2057	tristate "GPIO Virtual User Testing Module"
2058	select DEBUG_FS
2059	select CONFIGFS_FS
2060	select IRQ_WORK
2061	select DEV_SYNC_PROBE
2062	help
2063	  Say Y here to enable the configurable, configfs-based virtual GPIO
2064	  consumer testing driver.
2065
2066	  This driver is aimed as a helper in spotting any regressions in
2067	  hot-unplug handling in GPIOLIB.
2068
2069endmenu
2070
2071endif
2072
2073config DEV_SYNC_PROBE
2074	tristate
2075