1# SPDX-License-Identifier: GPL-2.0-only
2#
3# GPIO infrastructure and drivers
4#
5
6config ARCH_HAVE_CUSTOM_GPIO_H
7	bool
8	help
9	  Selecting this config option from the architecture Kconfig allows
10	  the architecture to provide a custom asm/gpio.h implementation
11	  overriding the default implementations.  New uses of this are
12	  strongly discouraged.
13
14menuconfig GPIOLIB
15	bool "GPIO Support"
16	help
17	  This enables GPIO support through the generic GPIO library.
18	  You only need to enable this if you also want to enable
19	  one or more of the GPIO drivers below.
20
21	  If unsure, say N.
22
23if GPIOLIB
24
25config GPIOLIB_FASTPATH_LIMIT
26	int "Maximum number of GPIOs for fast path"
27	range 32 512
28	default 512
29	help
30	  This adjusts the point at which certain APIs will switch from
31	  using a stack allocated buffer to a dynamically allocated buffer.
32
33	  You shouldn't need to change this unless you really need to
34	  optimize either stack space or performance. Change this carefully
35	  since setting an incorrect value could cause stack corruption.
36
37config OF_GPIO
38	def_bool y
39	depends on OF
40	depends on HAS_IOMEM
41
42config GPIO_ACPI
43	def_bool y
44	depends on ACPI
45
46config GPIOLIB_IRQCHIP
47	select IRQ_DOMAIN
48	bool
49
50config DEBUG_GPIO
51	bool "Debug GPIO calls"
52	depends on DEBUG_KERNEL
53	help
54	  Say Y here to add some extra checks and diagnostics to GPIO calls.
55	  These checks help ensure that GPIOs have been properly initialized
56	  before they are used, and that sleeping calls are not made from
57	  non-sleeping contexts.  They can make bitbanged serial protocols
58	  slower.  The diagnostics help catch the type of setup errors
59	  that are most common when setting up new platforms or boards.
60
61config GPIO_SYSFS
62	bool "/sys/class/gpio/... (sysfs interface)" if EXPERT
63	depends on SYSFS
64	select GPIO_CDEV # We need to encourage the new ABI
65	help
66	  Say Y here to add the legacy sysfs interface for GPIOs.
67
68	  This ABI is deprecated. If you want to use GPIO from userspace,
69	  use the character device /dev/gpiochipN with the appropriate
70	  ioctl() operations instead.
71
72config GPIO_CDEV
73	bool
74	prompt "Character device (/dev/gpiochipN) support" if EXPERT
75	default y
76	help
77	  Say Y here to add the character device /dev/gpiochipN interface
78	  for GPIOs. The character device allows userspace to control GPIOs
79	  using ioctl() operations.
80
81	  Only say N if you are sure that the GPIO character device is not
82	  required.
83
84	  If unsure, say Y.
85
86config GPIO_CDEV_V1
87	bool "Support GPIO ABI Version 1"
88	default y
89	depends on GPIO_CDEV
90	help
91	  Say Y here to support version 1 of the GPIO CDEV ABI.
92
93	  This ABI version is deprecated.
94	  Please use the latest ABI for new developments.
95
96	  If unsure, say Y.
97
98config GPIO_GENERIC
99	depends on HAS_IOMEM # Only for IOMEM drivers
100	tristate
101
102config GPIO_REGMAP
103	depends on REGMAP
104	tristate
105
106# put drivers in the right section, in alphabetical order
107
108# This symbol is selected by both I2C and SPI expanders
109config GPIO_MAX730X
110	tristate
111
112menu "Memory mapped GPIO drivers"
113	depends on HAS_IOMEM
114
115config GPIO_74XX_MMIO
116	tristate "GPIO driver for 74xx-ICs with MMIO access"
117	depends on OF_GPIO
118	select GPIO_GENERIC
119	help
120	  Say yes here to support GPIO functionality for 74xx-compatible ICs
121	  with MMIO access. Compatible models include:
122	    1 bit:	741G125 (Input), 741G74 (Output)
123	    2 bits:	742G125 (Input), 7474 (Output)
124	    4 bits:	74125 (Input), 74175 (Output)
125	    6 bits:	74365 (Input), 74174 (Output)
126	    8 bits:	74244 (Input), 74273 (Output)
127	    16 bits:	741624 (Input), 7416374 (Output)
128
129config GPIO_ALTERA
130	tristate "Altera GPIO"
131	depends on OF_GPIO
132	select GPIOLIB_IRQCHIP
133	help
134	  Say Y or M here to build support for the Altera PIO device.
135
136	  If driver is built as a module it will be called gpio-altera.
137
138config GPIO_AMDPT
139	tristate "AMD Promontory GPIO support"
140	depends on ACPI
141	select GPIO_GENERIC
142	help
143	  Driver for GPIO functionality on Promontory IOHub.
144	  Requires ACPI ASL code to enumerate as a platform device.
145
146config GPIO_ASPEED
147	tristate "Aspeed GPIO support"
148	depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
149	select GPIOLIB_IRQCHIP
150	help
151	  Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
152
153config GPIO_ASPEED_SGPIO
154	bool "Aspeed SGPIO support"
155	depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
156	select GPIO_GENERIC
157	select GPIOLIB_IRQCHIP
158	help
159	  Say Y here to support Aspeed AST2500 SGPIO functionality.
160
161config GPIO_ATH79
162	tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
163	default y if ATH79
164	depends on ATH79 || COMPILE_TEST
165	select GPIO_GENERIC
166	select GPIOLIB_IRQCHIP
167	help
168	  Select this option to enable GPIO driver for
169	  Atheros AR71XX/AR724X/AR913X SoC devices.
170
171config GPIO_RASPBERRYPI_EXP
172	tristate "Raspberry Pi 3 GPIO Expander"
173	default RASPBERRYPI_FIRMWARE
174	depends on OF_GPIO
175	# Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
176	# happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
177	depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
178	help
179	  Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
180	  the firmware mailbox to communicate with VideoCore on BCM283x chips.
181
182config GPIO_BCM_KONA
183	bool "Broadcom Kona GPIO"
184	depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
185	help
186	  Turn on GPIO support for Broadcom "Kona" chips.
187
188config GPIO_BCM_XGS_IPROC
189	tristate "BRCM XGS iProc GPIO support"
190	depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST)
191	select GPIO_GENERIC
192	select GPIOLIB_IRQCHIP
193	default ARCH_BCM_IPROC
194	help
195	  Say yes here to enable GPIO support for Broadcom XGS iProc SoCs.
196
197config GPIO_BRCMSTB
198	tristate "BRCMSTB GPIO support"
199	default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
200	depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
201	select GPIO_GENERIC
202	select IRQ_DOMAIN
203	help
204	  Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
205
206config GPIO_CADENCE
207	tristate "Cadence GPIO support"
208	depends on OF_GPIO
209	select GPIO_GENERIC
210	select GPIOLIB_IRQCHIP
211	help
212	  Say yes here to enable support for Cadence GPIO controller.
213
214config GPIO_CLPS711X
215	tristate "CLPS711X GPIO support"
216	depends on ARCH_CLPS711X || COMPILE_TEST
217	select GPIO_GENERIC
218	help
219	  Say yes here to support GPIO on CLPS711X SoCs.
220
221config GPIO_DAVINCI
222	bool "TI Davinci/Keystone GPIO support"
223	default y if ARCH_DAVINCI
224	depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3)
225	help
226	  Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
227
228config GPIO_DWAPB
229	tristate "Synopsys DesignWare APB GPIO driver"
230	select GPIO_GENERIC
231	select GPIOLIB_IRQCHIP
232	help
233	  Say Y or M here to build support for the Synopsys DesignWare APB
234	  GPIO block.
235
236config GPIO_EIC_SPRD
237	tristate "Spreadtrum EIC support"
238	depends on ARCH_SPRD || COMPILE_TEST
239	depends on OF_GPIO
240	select GPIOLIB_IRQCHIP
241	help
242	  Say yes here to support Spreadtrum EIC device.
243
244config GPIO_EM
245	tristate "Emma Mobile GPIO"
246	depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
247	help
248	  Say yes here to support GPIO on Renesas Emma Mobile SoCs.
249
250config GPIO_EP93XX
251	def_bool y
252	depends on ARCH_EP93XX
253	select GPIO_GENERIC
254	select GPIOLIB_IRQCHIP
255
256config GPIO_EXAR
257	tristate "Support for GPIO pins on XR17V352/354/358"
258	depends on SERIAL_8250_EXAR
259	select REGMAP_MMIO
260	help
261	  Selecting this option will enable handling of GPIO pins present
262	  on Exar XR17V352/354/358 chips.
263
264config GPIO_GE_FPGA
265	bool "GE FPGA based GPIO"
266	depends on GE_FPGA
267	select GPIO_GENERIC
268	help
269	  Support for common GPIO functionality provided on some GE Single Board
270	  Computers.
271
272	  This driver provides basic support (configure as input or output, read
273	  and write pin state) for GPIO implemented in a number of GE single
274	  board computers.
275
276config GPIO_FTGPIO010
277	bool "Faraday FTGPIO010 GPIO"
278	depends on OF_GPIO
279	select GPIO_GENERIC
280	select GPIOLIB_IRQCHIP
281	default (ARCH_GEMINI || ARCH_MOXART)
282	help
283	  Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
284	  Cortina systems Gemini platforms, Moxa ART and others.
285
286config GPIO_GENERIC_PLATFORM
287	tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
288	select GPIO_GENERIC
289	help
290	  Say yes here to support basic platform_device memory-mapped GPIO controllers.
291
292config GPIO_GRGPIO
293	tristate "Aeroflex Gaisler GRGPIO support"
294	depends on OF_GPIO
295	select GPIO_GENERIC
296	select IRQ_DOMAIN
297	help
298	  Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
299	  VHDL IP core library.
300
301config GPIO_HISI
302	tristate "HiSilicon GPIO controller driver"
303	depends on (ARM64 && ACPI) || COMPILE_TEST
304	select GPIO_GENERIC
305	select GPIOLIB_IRQCHIP
306	help
307	  Say Y or M here to build support for the HiSilicon GPIO controller
308	  driver GPIO block.
309	  This GPIO controller supports double-edge interrupt and multi-core
310	  concurrent access.
311
312config GPIO_HLWD
313	tristate "Nintendo Wii (Hollywood) GPIO"
314	depends on OF_GPIO
315	select GPIO_GENERIC
316	select GPIOLIB_IRQCHIP
317	help
318	  Select this to support the GPIO controller of the Nintendo Wii.
319
320	  If unsure, say N.
321
322config GPIO_ICH
323	tristate "Intel ICH GPIO"
324	depends on X86
325	depends on LPC_ICH
326	help
327	  Say yes here to support the GPIO functionality of a number of Intel
328	  ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
329	  ICH9, ICH10, Series 5/3400 (e.g. Ibex Peak), Series 6/C200 (e.g.
330	  Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
331
332	  If unsure, say N.
333
334config GPIO_IOP
335	tristate "Intel IOP GPIO"
336	depends on ARCH_IOP32X || COMPILE_TEST
337	select GPIO_GENERIC
338	help
339	  Say yes here to support the GPIO functionality of a number of Intel
340	  IOP32X or IOP33X series of chips.
341
342	  If unsure, say N.
343
344config GPIO_IXP4XX
345	bool "Intel IXP4xx GPIO"
346	depends on ARM # For <asm/mach-types.h>
347	depends on ARCH_IXP4XX
348	select GPIO_GENERIC
349	select GPIOLIB_IRQCHIP
350	select IRQ_DOMAIN_HIERARCHY
351	help
352	  Say yes here to support the GPIO functionality of a number of Intel
353	  IXP4xx series of chips.
354
355	  If unsure, say N.
356config GPIO_LOGICVC
357	tristate "Xylon LogiCVC GPIO support"
358	depends on MFD_SYSCON && OF
359	help
360	  Say yes here to support GPIO functionality of the Xylon LogiCVC
361	  programmable logic block.
362
363config GPIO_LOONGSON
364	bool "Loongson-2/3 GPIO support"
365	depends on CPU_LOONGSON2EF || CPU_LOONGSON64
366	help
367	  Driver for GPIO functionality on Loongson-2F/3A/3B processors.
368
369config GPIO_LPC18XX
370	tristate "NXP LPC18XX/43XX GPIO support"
371	default y if ARCH_LPC18XX
372	depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
373	select IRQ_DOMAIN_HIERARCHY
374	help
375	  Select this option to enable GPIO driver for
376	  NXP LPC18XX/43XX devices.
377
378config GPIO_LPC32XX
379	tristate "NXP LPC32XX GPIO support"
380	depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST)
381	help
382	  Select this option to enable GPIO driver for
383	  NXP LPC32XX devices.
384
385config GPIO_MB86S7X
386	tristate "GPIO support for Fujitsu MB86S7x Platforms"
387	help
388	  Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
389
390config GPIO_MENZ127
391	tristate "MEN 16Z127 GPIO support"
392	depends on MCB
393	select GPIO_GENERIC
394	help
395	  Say yes here to support the MEN 16Z127 GPIO Controller.
396
397config GPIO_MM_LANTIQ
398	bool "Lantiq Memory mapped GPIOs"
399	depends on LANTIQ && SOC_XWAY
400	help
401	  This enables support for memory mapped GPIOs on the External Bus Unit
402	  (EBU) found on Lantiq SoCs. The GPIOs are output only as they are
403	  created by attaching a 16-bit latch to the bus.
404
405config GPIO_MPC5200
406	def_bool y
407	depends on PPC_MPC52xx
408
409config GPIO_MPC8XXX
410	bool "MPC512x/MPC8xxx/QorIQ GPIO support"
411	depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
412		   FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
413		   COMPILE_TEST
414	select GPIO_GENERIC
415	select IRQ_DOMAIN
416	help
417	  Say Y here if you're going to use hardware that connects to the
418	  MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
419
420config GPIO_MT7621
421	bool "Mediatek MT7621 GPIO Support"
422	depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
423	depends on OF_GPIO
424	select GPIO_GENERIC
425	select GPIOLIB_IRQCHIP
426	help
427	  Say yes here to support the Mediatek MT7621 SoC GPIO device.
428
429config GPIO_MVEBU
430	def_bool y
431	depends on PLAT_ORION || ARCH_MVEBU
432	depends on OF_GPIO
433	select GENERIC_IRQ_CHIP
434	select REGMAP_MMIO
435
436config GPIO_MXC
437	tristate "i.MX GPIO support"
438	depends on ARCH_MXC || COMPILE_TEST
439	select GPIO_GENERIC
440	select GENERIC_IRQ_CHIP
441
442config GPIO_MXS
443	bool "Freescale MXS GPIO support" if COMPILE_TEST
444	depends on ARCH_MXS || COMPILE_TEST
445	default y if ARCH_MXS
446	select GPIO_GENERIC
447	select GENERIC_IRQ_CHIP
448
449config GPIO_OCTEON
450	tristate "Cavium OCTEON GPIO"
451	depends on CAVIUM_OCTEON_SOC
452	default y
453	help
454	  Say yes here to support the on-chip GPIO lines on the OCTEON
455	  family of SOCs.
456
457config GPIO_OMAP
458	tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
459	default y if ARCH_OMAP
460	depends on ARM
461	select GENERIC_IRQ_CHIP
462	select GPIOLIB_IRQCHIP
463	help
464	  Say yes here to enable GPIO support for TI OMAP SoCs.
465
466config GPIO_PL061
467	tristate "PrimeCell PL061 GPIO support"
468	depends on ARM_AMBA
469	select IRQ_DOMAIN
470	select GPIOLIB_IRQCHIP
471	help
472	  Say yes here to support the PrimeCell PL061 GPIO device.
473
474config GPIO_PMIC_EIC_SPRD
475	tristate "Spreadtrum PMIC EIC support"
476	depends on MFD_SC27XX_PMIC || COMPILE_TEST
477	depends on OF_GPIO
478	select GPIOLIB_IRQCHIP
479	help
480	  Say yes here to support Spreadtrum PMIC EIC device.
481
482config GPIO_PXA
483	bool "PXA GPIO support"
484	depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST
485	help
486	  Say yes here to support the PXA GPIO device.
487
488config GPIO_RCAR
489	tristate "Renesas R-Car and RZ/G GPIO support"
490	depends on ARCH_RENESAS || COMPILE_TEST
491	select GPIOLIB_IRQCHIP
492	help
493	  Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs.
494
495config GPIO_RDA
496	bool "RDA Micro GPIO controller support"
497	depends on ARCH_RDA || COMPILE_TEST
498	depends on OF_GPIO
499	select GPIO_GENERIC
500	select GPIOLIB_IRQCHIP
501	help
502	  Say Y here to support RDA Micro GPIO controller.
503
504config GPIO_REALTEK_OTTO
505	tristate "Realtek Otto GPIO support"
506	depends on MACH_REALTEK_RTL
507	default MACH_REALTEK_RTL
508	select GPIO_GENERIC
509	select GPIOLIB_IRQCHIP
510	help
511	  The GPIO controller on the Otto MIPS platform supports up to two
512	  banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs
513	  are grouped in four 8-bit wide ports.
514
515	  When built as a module, the module will be called realtek_otto_gpio.
516
517config GPIO_REG
518	bool
519	help
520	  A 32-bit single register GPIO fixed in/out implementation.  This
521	  can be used to represent any register as a set of GPIO signals.
522
523config GPIO_ROCKCHIP
524	tristate "Rockchip GPIO support"
525	depends on ARCH_ROCKCHIP || COMPILE_TEST
526	select GENERIC_IRQ_CHIP
527	select GPIOLIB_IRQCHIP
528	default ARCH_ROCKCHIP
529	help
530	  Say yes here to support GPIO on Rockchip SoCs.
531
532config GPIO_SAMA5D2_PIOBU
533	tristate "SAMA5D2 PIOBU GPIO support"
534	depends on MFD_SYSCON
535	depends on OF_GPIO
536	select GPIO_SYSCON
537	help
538	  Say yes here to use the PIOBU pins as GPIOs.
539
540	  PIOBU pins on the SAMA5D2 can be used as GPIOs.
541	  The difference from regular GPIOs is that they
542	  maintain their value during backup/self-refresh.
543
544config GPIO_SIFIVE
545	bool "SiFive GPIO support"
546	depends on OF_GPIO
547	select IRQ_DOMAIN_HIERARCHY
548	select GPIO_GENERIC
549	select GPIOLIB_IRQCHIP
550	select REGMAP_MMIO
551	help
552	  Say yes here to support the GPIO device on SiFive SoCs.
553
554config GPIO_SIOX
555	tristate "SIOX GPIO support"
556	depends on SIOX
557	select GPIOLIB_IRQCHIP
558	help
559	  Say yes here to support SIOX I/O devices. These are units connected
560	  via a SIOX bus and have a number of fixed-direction I/O lines.
561
562config GPIO_SNPS_CREG
563	bool "Synopsys GPIO via CREG (Control REGisters) driver"
564	depends on ARC || COMPILE_TEST
565	depends on OF_GPIO
566	help
567	  This driver supports GPIOs via CREG on various Synopsys SoCs.
568	  This is a single-register MMIO GPIO driver for complex cases
569	  where only several fields in register belong to GPIO lines and
570	  each GPIO line owns a field with different length and on/off value.
571
572config GPIO_SPEAR_SPICS
573	bool "ST SPEAr13xx SPI Chip Select as GPIO support"
574	depends on PLAT_SPEAR
575	select GENERIC_IRQ_CHIP
576	help
577	  Say yes here to support ST SPEAr SPI Chip Select as GPIO device.
578
579config GPIO_SPRD
580	tristate "Spreadtrum GPIO support"
581	depends on ARCH_SPRD || COMPILE_TEST
582	depends on OF_GPIO
583	select GPIOLIB_IRQCHIP
584	help
585	  Say yes here to support Spreadtrum GPIO device.
586
587config GPIO_STA2X11
588	bool "STA2x11/ConneXt GPIO support"
589	depends on MFD_STA2X11
590	select GENERIC_IRQ_CHIP
591	help
592	  Say yes here to support the STA2x11/ConneXt GPIO device.
593	  The GPIO module has 128 GPIO pins with alternate functions.
594
595config GPIO_STP_XWAY
596	bool "XWAY STP GPIOs"
597	depends on SOC_XWAY || COMPILE_TEST
598	depends on OF_GPIO
599	help
600	  This enables support for the Serial To Parallel (STP) unit found on
601	  XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
602	  that can be up to 24 bits. This peripheral is aimed at driving LEDs.
603	  Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and
604	  phy status.
605
606config GPIO_SYSCON
607	tristate "GPIO based on SYSCON"
608	depends on MFD_SYSCON && OF
609	help
610	  Say yes here to support GPIO functionality though SYSCON driver.
611
612config GPIO_TB10X
613	bool
614	select GPIO_GENERIC
615	select GENERIC_IRQ_CHIP
616	select OF_GPIO
617
618config GPIO_TEGRA
619	tristate "NVIDIA Tegra GPIO support"
620	default ARCH_TEGRA
621	depends on ARCH_TEGRA || COMPILE_TEST
622	depends on OF_GPIO
623	select GPIOLIB_IRQCHIP
624	select IRQ_DOMAIN_HIERARCHY
625	help
626	  Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
627
628config GPIO_TEGRA186
629	tristate "NVIDIA Tegra186 GPIO support"
630	default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC
631	depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST
632	depends on OF_GPIO
633	select GPIOLIB_IRQCHIP
634	select IRQ_DOMAIN_HIERARCHY
635	help
636	  Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
637
638config GPIO_TS4800
639	tristate "TS-4800 DIO blocks and compatibles"
640	depends on OF_GPIO
641	depends on SOC_IMX51 || COMPILE_TEST
642	select GPIO_GENERIC
643	help
644	  This driver support TS-4800 FPGA GPIO controllers.
645
646config GPIO_THUNDERX
647	tristate "Cavium ThunderX/OCTEON-TX GPIO"
648	depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
649	depends on PCI_MSI
650	select GPIOLIB_IRQCHIP
651	select IRQ_DOMAIN_HIERARCHY
652	select IRQ_FASTEOI_HIERARCHY_HANDLERS
653	help
654	  Say yes here to support the on-chip GPIO lines on the ThunderX
655	  and OCTEON-TX families of SoCs.
656
657config GPIO_UNIPHIER
658	tristate "UniPhier GPIO support"
659	depends on ARCH_UNIPHIER || COMPILE_TEST
660	depends on OF_GPIO
661	select IRQ_DOMAIN_HIERARCHY
662	help
663	  Say yes here to support UniPhier GPIOs.
664
665config GPIO_VF610
666	def_bool y
667	depends on ARCH_MXC && SOC_VF610
668	select GPIOLIB_IRQCHIP
669	help
670	  Say yes here to support Vybrid vf610 GPIOs.
671
672config GPIO_VISCONTI
673	tristate "Toshiba Visconti GPIO support"
674	depends on ARCH_VISCONTI || COMPILE_TEST
675	depends on OF_GPIO
676	select GPIOLIB_IRQCHIP
677	select GPIO_GENERIC
678	select IRQ_DOMAIN_HIERARCHY
679	help
680	  Say yes here to support GPIO on Tohisba Visconti.
681
682config GPIO_VR41XX
683	tristate "NEC VR4100 series General-purpose I/O Unit support"
684	depends on CPU_VR41XX
685	help
686	  Say yes here to support the NEC VR4100 series General-purpose I/O Unit.
687
688config GPIO_VX855
689	tristate "VIA VX855/VX875 GPIO"
690	depends on (X86 || COMPILE_TEST) && PCI
691	select MFD_CORE
692	select MFD_VX855
693	help
694	  Support access to the VX855/VX875 GPIO lines through the GPIO library.
695
696	  This driver provides common support for accessing the device.
697	  Additional drivers must be enabled in order to use the
698	  functionality of the device.
699
700config GPIO_WCD934X
701	tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver"
702	depends on MFD_WCD934X && OF_GPIO
703	help
704         This driver is to support GPIO block found on the Qualcomm Technologies
705	 Inc WCD9340/WCD9341 Audio Codec.
706
707config GPIO_XGENE
708	bool "APM X-Gene GPIO controller support"
709	depends on ARM64 && OF_GPIO
710	help
711	  This driver is to support the GPIO block within the APM X-Gene SoC
712	  platform's generic flash controller. The GPIO pins are muxed with
713	  the generic flash controller's address and data pins. Say yes
714	  here to enable the GFC GPIO functionality.
715
716config GPIO_XGENE_SB
717	tristate "APM X-Gene GPIO standby controller support"
718	depends on (ARCH_XGENE || COMPILE_TEST)
719	select GPIO_GENERIC
720	select GPIOLIB_IRQCHIP
721	select IRQ_DOMAIN_HIERARCHY
722	help
723	  This driver supports the GPIO block within the APM X-Gene
724	  Standby Domain. Say yes here to enable the GPIO functionality.
725
726config GPIO_XILINX
727	tristate "Xilinx GPIO support"
728	select GPIOLIB_IRQCHIP
729	depends on OF_GPIO
730	help
731	  Say yes here to support the Xilinx FPGA GPIO device.
732
733config GPIO_XLP
734	tristate "Netlogic XLP GPIO support"
735	depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
736	select GPIOLIB_IRQCHIP
737	help
738	  This driver provides support for GPIO interface on Netlogic XLP MIPS64
739	  SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
740	  XLP9XX and XLP5XX. The same GPIO controller block is also present in
741	  Cavium's ThunderX2 CN99XX SoCs.
742
743	  If unsure, say N.
744
745config GPIO_XTENSA
746	bool "Xtensa GPIO32 support"
747	depends on XTENSA
748	depends on HAVE_XTENSA_GPIO32
749	depends on !SMP
750	help
751	  Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
752	  and EXPSTATE (output) ports.
753
754config GPIO_ZEVIO
755	bool "LSI ZEVIO SoC memory mapped GPIOs"
756	depends on ARM && OF_GPIO
757	help
758	  Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
759
760config GPIO_ZYNQ
761	tristate "Xilinx Zynq GPIO support"
762	depends on ARCH_ZYNQ || ARCH_ZYNQMP
763	select GPIOLIB_IRQCHIP
764	help
765	  Say yes here to support Xilinx Zynq GPIO controller.
766
767config GPIO_ZYNQMP_MODEPIN
768	tristate "ZynqMP ps-mode pin GPIO configuration driver"
769	depends on ZYNQMP_FIRMWARE
770	default ZYNQMP_FIRMWARE
771	help
772	  Say yes here to support the ZynqMP ps-mode pin GPIO configuration
773	  driver.
774
775	  This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE
776	  is 4-bits boot mode pins. It sets and gets the status of
777	  the ps-mode pin. Every pin can be configured as input/output.
778
779config GPIO_LOONGSON1
780	tristate "Loongson1 GPIO support"
781	depends on MACH_LOONGSON32
782	select GPIO_GENERIC
783	help
784	  Say Y or M here to support GPIO on Loongson1 SoCs.
785
786config GPIO_AMD_FCH
787	tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
788	help
789	  This option enables driver for GPIO on AMD's Fusion Controller Hub,
790	  as found on G-series SOCs (e.g. GX-412TC).
791
792	  Note: This driver doesn't register itself automatically, as it
793	  needs to be provided with platform-specific configuration.
794	  (See e.g. CONFIG_PCENGINES_APU2.)
795
796config GPIO_MSC313
797	bool "MStar MSC313 GPIO support"
798	depends on ARCH_MSTARV7
799	default ARCH_MSTARV7
800	select GPIOLIB_IRQCHIP
801	select IRQ_DOMAIN_HIERARCHY
802	help
803	  Say Y here to support the main GPIO block on MStar/SigmaStar
804	  ARMv7-based SoCs.
805
806config GPIO_IDT3243X
807	tristate "IDT 79RC3243X GPIO support"
808	depends on MIKROTIK_RB532 || COMPILE_TEST
809	select GPIO_GENERIC
810	select GPIOLIB_IRQCHIP
811	help
812	  Select this option to enable GPIO driver for
813	  IDT 79RC3243X-based devices like Mikrotik RB532.
814
815	  To compile this driver as a module, choose M here: the module will
816	  be called gpio-idt3243x.
817
818endmenu
819
820menu "Port-mapped I/O GPIO drivers"
821	depends on X86 # Unconditional I/O space access
822
823config GPIO_104_DIO_48E
824	tristate "ACCES 104-DIO-48E GPIO support"
825	depends on PC104
826	select ISA_BUS_API
827	select GPIOLIB_IRQCHIP
828	help
829	  Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
830	  104-DIO-24E). The base port addresses for the devices may be
831	  configured via the base module parameter. The interrupt line numbers
832	  for the devices may be configured via the irq module parameter.
833
834config GPIO_104_IDIO_16
835	tristate "ACCES 104-IDIO-16 GPIO support"
836	depends on PC104
837	select ISA_BUS_API
838	select GPIOLIB_IRQCHIP
839	help
840	  Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
841	  104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
842	  base port addresses for the devices may be configured via the base
843	  module parameter. The interrupt line numbers for the devices may be
844	  configured via the irq module parameter.
845
846config GPIO_104_IDI_48
847	tristate "ACCES 104-IDI-48 GPIO support"
848	depends on PC104
849	select ISA_BUS_API
850	select GPIOLIB_IRQCHIP
851	help
852	  Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
853	  104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
854	  the devices may be configured via the base module parameter. The
855	  interrupt line numbers for the devices may be configured via the irq
856	  module parameter.
857
858config GPIO_F7188X
859	tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
860	help
861	  This option enables support for GPIOs found on Fintek Super-I/O
862	  chips F71869, F71869A, F71882FG, F71889F and F81866.
863
864	  To compile this driver as a module, choose M here: the module will
865	  be called f7188x-gpio.
866
867config GPIO_GPIO_MM
868	tristate "Diamond Systems GPIO-MM GPIO support"
869	depends on PC104
870	select ISA_BUS_API
871	help
872	  Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
873
874	  The Diamond Systems GPIO-MM device features 48 lines of digital I/O
875	  via the emulation of dual 82C55A PPI chips. This driver provides GPIO
876	  support for these 48 channels of digital I/O.
877
878	  The base port addresses for the devices may be configured via the base
879	  array module parameter.
880
881config GPIO_IT87
882	tristate "IT87xx GPIO support"
883	help
884	  Say yes here to support GPIO functionality of IT87xx Super I/O chips.
885
886	  This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
887	  supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
888	  well.
889
890	  To compile this driver as a module, choose M here: the module will
891	  be called gpio_it87.
892
893config GPIO_SCH
894	tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
895	depends on (X86 || COMPILE_TEST) && ACPI
896	depends on LPC_SCH
897	select GPIOLIB_IRQCHIP
898	help
899	  Say yes here to support GPIO interface on Intel Poulsbo SCH,
900	  Intel Tunnel Creek processor, Intel Centerton processor or
901	  Intel Quark X1000 SoC.
902
903	  The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
904	  powered by the core power rail and are turned off during sleep
905	  modes (S3 and higher). The remaining four GPIOs are powered by
906	  the Intel SCH suspend power supply. These GPIOs remain
907	  active during S3. The suspend-powered GPIOs can be used to wake the
908	  system from the Suspend-to-RAM state.
909
910	  The Intel Tunnel Creek processor has 5 GPIOs powered by the
911	  core power rail and 9 from suspend power supply.
912
913	  The Intel Centerton processor has a total of 30 GPIO pins.
914	  Twenty-one are powered by the core power rail and 9 from the
915	  suspend power supply.
916
917	  The Intel Quark X1000 SoC has 2 GPIOs powered by the core
918	  power well and 6 from the suspend power well.
919
920config GPIO_SCH311X
921	tristate "SMSC SCH311x SuperI/O GPIO"
922	help
923	  Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
924	  SCH3116 "Super I/O" chipsets.
925
926	  To compile this driver as a module, choose M here: the module will
927	  be called gpio-sch311x.
928
929config GPIO_TS5500
930	tristate "TS-5500 DIO blocks and compatibles"
931	depends on TS5500 || COMPILE_TEST
932	help
933	  This driver supports Digital I/O exposed by pin blocks found on some
934	  Technologic Systems platforms. It includes, but is not limited to, 3
935	  blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
936	  LCD port.
937
938config GPIO_WINBOND
939	tristate "Winbond Super I/O GPIO support"
940	select ISA_BUS_API
941	help
942	  This option enables support for GPIOs found on Winbond Super I/O
943	  chips.
944	  Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
945	  supported.
946
947	  You will need to provide a module parameter "gpios", or a
948	  boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
949	  ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
950
951	  To compile this driver as a module, choose M here: the module will
952	  be called gpio-winbond.
953
954config GPIO_WS16C48
955	tristate "WinSystems WS16C48 GPIO support"
956	select ISA_BUS_API
957	select GPIOLIB_IRQCHIP
958	help
959	  Enables GPIO support for the WinSystems WS16C48. The base port
960	  addresses for the devices may be configured via the base module
961	  parameter. The interrupt line numbers for the devices may be
962	  configured via the irq module parameter.
963
964endmenu
965
966menu "I2C GPIO expanders"
967	depends on I2C
968
969config GPIO_ADP5588
970	tristate "ADP5588 I2C GPIO expander"
971	help
972	  This option enables support for 18 GPIOs found
973	  on Analog Devices ADP5588 GPIO Expanders.
974
975config GPIO_ADP5588_IRQ
976	bool "Interrupt controller support for ADP5588"
977	depends on GPIO_ADP5588=y
978	select GPIOLIB_IRQCHIP
979	help
980	  Say yes here to enable the adp5588 to be used as an interrupt
981	  controller. It requires the driver to be built in the kernel.
982
983config GPIO_ADNP
984	tristate "Avionic Design N-bit GPIO expander"
985	depends on OF_GPIO
986	select GPIOLIB_IRQCHIP
987	help
988	  This option enables support for N GPIOs found on Avionic Design
989	  I2C GPIO expanders. The register space will be extended by powers
990	  of two, so the controller will need to accommodate for that. For
991	  example: if a controller provides 48 pins, 6 registers will be
992	  enough to represent all pins, but the driver will assume a
993	  register layout for 64 pins (8 registers).
994
995config GPIO_GW_PLD
996	tristate "Gateworks PLD GPIO Expander"
997	depends on OF_GPIO
998	help
999	  Say yes here to provide access to the Gateworks I2C PLD GPIO
1000	  Expander. This is used at least on the Cambria GW2358-4.
1001
1002config GPIO_MAX7300
1003	tristate "Maxim MAX7300 GPIO expander"
1004	select GPIO_MAX730X
1005	help
1006	  GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
1007
1008config GPIO_MAX732X
1009	tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
1010	help
1011	  Say yes here to support the MAX7319, MAX7320-7327 series of I2C
1012	  Port Expanders. Each IO port on these chips has a fixed role of
1013	  Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
1014	  Input and Output (designed by 'P'). The combinations are listed
1015	  below:
1016
1017	  8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
1018	                max7322 (4I4O), max7323 (4P4O)
1019
1020	  16 bits:      max7324 (8I8O), max7325 (8P8O),
1021	                max7326 (4I12O), max7327 (4P12O)
1022
1023	  Board setup code must specify the model to use, and the start
1024	  number for these GPIOs.
1025
1026config GPIO_MAX732X_IRQ
1027	bool "Interrupt controller support for MAX732x"
1028	depends on GPIO_MAX732X=y
1029	select GPIOLIB_IRQCHIP
1030	help
1031	  Say yes here to enable the max732x to be used as an interrupt
1032	  controller. It requires the driver to be built in the kernel.
1033
1034config GPIO_PCA953X
1035	tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
1036	select REGMAP_I2C
1037	help
1038	  Say yes here to provide access to several register-oriented
1039	  SMBus I/O expanders, made mostly by NXP or TI.  Compatible
1040	  models include:
1041
1042	  4 bits:       pca9536, pca9537
1043
1044	  8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
1045	                pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
1046
1047	  16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
1048	                tca6416
1049
1050	  24 bits:      tca6424
1051
1052	  40 bits:      pca9505, pca9698
1053
1054config GPIO_PCA953X_IRQ
1055	bool "Interrupt controller support for PCA953x"
1056	depends on GPIO_PCA953X
1057	select GPIOLIB_IRQCHIP
1058	help
1059	  Say yes here to enable the pca953x to be used as an interrupt
1060	  controller.
1061
1062config GPIO_PCA9570
1063	tristate "PCA9570 4-Bit I2C GPO expander"
1064	help
1065	  Say yes here to enable the GPO driver for the NXP PCA9570 chip.
1066
1067	  To compile this driver as a module, choose M here: the module will
1068	  be called gpio-pca9570.
1069
1070config GPIO_PCF857X
1071	tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
1072	select GPIOLIB_IRQCHIP
1073	select IRQ_DOMAIN
1074	help
1075	  Say yes here to provide access to most "quasi-bidirectional" I2C
1076	  GPIO expanders used for additional digital outputs or inputs.
1077	  Most of these parts are from NXP, though TI is a second source for
1078	  some of them.  Compatible models include:
1079
1080	  8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
1081	            pca9670, pca9672, pca9674, pca9674a,
1082	            max7328, max7329
1083
1084	  16 bits:  pcf8575, pcf8575c, pca8575,
1085	            pca9671, pca9673, pca9675
1086
1087	  Your board setup code will need to declare the expanders in
1088	  use, and assign numbers to the GPIOs they expose.  Those GPIOs
1089	  can then be used from drivers and other kernel code, just like
1090	  other GPIOs, but only accessible from task contexts.
1091
1092	  This driver provides an in-kernel interface to those GPIOs using
1093	  platform-neutral GPIO calls.
1094
1095config GPIO_TPIC2810
1096	tristate "TPIC2810 8-Bit I2C GPO expander"
1097	help
1098	  Say yes here to enable the GPO driver for the TI TPIC2810 chip.
1099
1100	  To compile this driver as a module, choose M here: the module will
1101	  be called gpio-tpic2810.
1102
1103config GPIO_TS4900
1104	tristate "Technologic Systems FPGA I2C GPIO"
1105	depends on SOC_IMX6 || COMPILE_TEST
1106	select REGMAP_I2C
1107	help
1108	  Say yes here to enabled the GPIO driver for Technologic's FPGA core.
1109	  Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
1110
1111endmenu
1112
1113menu "MFD GPIO expanders"
1114
1115config GPIO_ADP5520
1116	tristate "GPIO Support for ADP5520 PMIC"
1117	depends on PMIC_ADP5520
1118	help
1119	  This option enables support for on-chip GPIO found
1120	  on Analog Devices ADP5520 PMICs.
1121
1122config GPIO_ALTERA_A10SR
1123	tristate "Altera Arria10 System Resource GPIO"
1124	depends on MFD_ALTERA_A10SR
1125	help
1126	  Driver for Arria10 Development Kit GPIO expansion which
1127	  includes reads of pushbuttons and DIP switches as well
1128	  as writes to LEDs.
1129
1130config GPIO_ARIZONA
1131	tristate "Wolfson Microelectronics Arizona class devices"
1132	depends on MFD_ARIZONA
1133	help
1134	  Support for GPIOs on Wolfson Arizona class devices.
1135
1136config GPIO_BD70528
1137	tristate "ROHM BD70528 GPIO support"
1138	depends on MFD_ROHM_BD70528
1139	help
1140	  Support for GPIOs on ROHM BD70528 PMIC. There are four GPIOs
1141	  available on the ROHM PMIC in total. The GPIOs can also
1142	  generate interrupts.
1143
1144	  This driver can also be built as a module. If so, the module
1145	  will be called gpio-bd70528.
1146
1147config GPIO_BD71815
1148	tristate "ROHM BD71815 PMIC GPIO support"
1149	depends on MFD_ROHM_BD71828
1150	help
1151	  Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs
1152	  available on the ROHM PMIC.
1153
1154	  This driver can also be built as a module. If so, the module
1155	  will be called gpio-bd71815.
1156
1157config GPIO_BD71828
1158	tristate "ROHM BD71828 GPIO support"
1159	depends on MFD_ROHM_BD71828
1160	help
1161	  Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs
1162	  available on the ROHM PMIC in total. The GPIOs are limited to
1163	  outputs only and pins must be configured to GPIO outputs by
1164	  OTP. Enable this only if you want to use these pins as outputs.
1165
1166	  This driver can also be built as a module. If so, the module
1167	  will be called gpio-bd71828.
1168
1169config GPIO_BD9571MWV
1170	tristate "ROHM BD9571 GPIO support"
1171	depends on MFD_BD9571MWV
1172	help
1173	  Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
1174	  available on the ROHM PMIC in total, both of which can also
1175	  generate interrupts.
1176
1177	  This driver can also be built as a module. If so, the module
1178	  will be called gpio-bd9571mwv.
1179
1180config GPIO_CRYSTAL_COVE
1181	tristate "GPIO support for Crystal Cove PMIC"
1182	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1183	select GPIOLIB_IRQCHIP
1184	help
1185	  Support for GPIO pins on Crystal Cove PMIC.
1186
1187	  Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC
1188	  inside.
1189
1190	  This driver can also be built as a module. If so, the module will be
1191	  called gpio-crystalcove.
1192
1193config GPIO_CS5535
1194	tristate "AMD CS5535/CS5536 GPIO support"
1195	depends on X86 || MIPS || COMPILE_TEST
1196	depends on MFD_CS5535
1197	help
1198	  The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1199	  can be used for quite a number of things.  The CS5535/6 is found on
1200	  AMD Geode and Lemote Yeeloong devices.
1201
1202	  If unsure, say N.
1203
1204config GPIO_DA9052
1205	tristate "Dialog DA9052 GPIO"
1206	depends on PMIC_DA9052
1207	help
1208	  Say yes here to enable the GPIO driver for the DA9052 chip.
1209
1210config GPIO_DA9055
1211	tristate "Dialog Semiconductor DA9055 GPIO"
1212	depends on MFD_DA9055
1213	help
1214	  Say yes here to enable the GPIO driver for the DA9055 chip.
1215
1216	  The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1217	  be controlled by this driver.
1218
1219	  If driver is built as a module it will be called gpio-da9055.
1220
1221config GPIO_DLN2
1222	tristate "Diolan DLN2 GPIO support"
1223	depends on MFD_DLN2
1224	select GPIOLIB_IRQCHIP
1225
1226	help
1227	  Select this option to enable GPIO driver for the Diolan DLN2
1228	  board.
1229
1230	  This driver can also be built as a module. If so, the module
1231	  will be called gpio-dln2.
1232
1233config HTC_EGPIO
1234	bool "HTC EGPIO support"
1235	depends on ARM
1236	help
1237	  This driver supports the CPLD egpio chip present on
1238	  several HTC phones.  It provides basic support for input
1239	  pins, output pins, and IRQs.
1240
1241config GPIO_JANZ_TTL
1242	tristate "Janz VMOD-TTL Digital IO Module"
1243	depends on MFD_JANZ_CMODIO
1244	help
1245	  This enables support for the Janz VMOD-TTL Digital IO module.
1246	  This driver provides support for driving the pins in output
1247	  mode only. Input mode is not supported.
1248
1249config GPIO_KEMPLD
1250	tristate "Kontron ETX / COMexpress GPIO"
1251	depends on MFD_KEMPLD
1252	help
1253	  This enables support for the PLD GPIO interface on some Kontron ETX
1254	  and COMexpress (ETXexpress) modules.
1255
1256	  This driver can also be built as a module. If so, the module will be
1257	  called gpio-kempld.
1258
1259config GPIO_LP3943
1260	tristate "TI/National Semiconductor LP3943 GPIO expander"
1261	depends on MFD_LP3943
1262	help
1263	  GPIO driver for LP3943 MFD.
1264	  LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1265	  Open drain outputs are required for this usage.
1266
1267config GPIO_LP873X
1268	tristate "TI LP873X GPO"
1269	depends on MFD_TI_LP873X
1270	help
1271	  This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1272	  on LP873X PMICs.
1273
1274	  This driver can also be built as a module. If so, the module will be
1275	  called gpio-lp873x.
1276
1277config GPIO_LP87565
1278	tristate "TI LP87565 GPIO"
1279	depends on MFD_TI_LP87565
1280	help
1281	  This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1282	  on LP87565 PMICs.
1283
1284	  This driver can also be built as a module. If so, the module will be
1285	  called gpio-lp87565.
1286
1287config GPIO_MADERA
1288	tristate "Cirrus Logic Madera class codecs"
1289	depends on PINCTRL_MADERA
1290	help
1291	  Support for GPIOs on Cirrus Logic Madera class codecs.
1292
1293config GPIO_MAX77620
1294	tristate "GPIO support for PMIC MAX77620 and MAX20024"
1295	depends on MFD_MAX77620
1296	select GPIOLIB_IRQCHIP
1297	help
1298	  GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1299	  MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1300	  driver also provides interrupt support for each of the GPIOs.
1301	  Say yes here to enable the max77620 to be used as GPIO controller.
1302
1303config GPIO_MAX77650
1304	tristate "Maxim MAX77650/77651 GPIO support"
1305	depends on MFD_MAX77650
1306	help
1307	  GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1308	  These chips have a single pin that can be configured as GPIO.
1309
1310config GPIO_PALMAS
1311	bool "TI PALMAS series PMICs GPIO"
1312	depends on MFD_PALMAS
1313	help
1314	  Select this option to enable GPIO driver for the TI PALMAS
1315	  series chip family.
1316
1317config GPIO_RC5T583
1318	bool "RICOH RC5T583 GPIO"
1319	depends on MFD_RC5T583
1320	help
1321	  Select this option to enable GPIO driver for the Ricoh RC5T583
1322	  chip family.
1323	  This driver provides the support for driving/reading the GPIO pins
1324	  of RC5T583 device through standard GPIO library.
1325
1326config GPIO_SL28CPLD
1327	tristate "Kontron sl28cpld GPIO support"
1328	depends on MFD_SL28CPLD || COMPILE_TEST
1329	select GPIO_REGMAP
1330	select GPIOLIB_IRQCHIP
1331	select REGMAP_IRQ
1332	help
1333	  This enables support for the GPIOs found on the Kontron sl28 CPLD.
1334
1335	  This driver can also be built as a module. If so, the module will be
1336	  called gpio-sl28cpld.
1337
1338config GPIO_STMPE
1339	bool "STMPE GPIOs"
1340	depends on MFD_STMPE
1341	depends on OF_GPIO
1342	select GPIOLIB_IRQCHIP
1343	help
1344	  This enables support for the GPIOs found on the STMPE I/O
1345	  Expanders.
1346
1347config GPIO_TC3589X
1348	bool "TC3589X GPIOs"
1349	depends on MFD_TC3589X
1350	depends on OF_GPIO
1351	select GPIOLIB_IRQCHIP
1352	help
1353	  This enables support for the GPIOs found on the TC3589X
1354	  I/O Expander.
1355
1356config GPIO_TIMBERDALE
1357	bool "Support for timberdale GPIO IP"
1358	depends on MFD_TIMBERDALE
1359	help
1360	Add support for the GPIO IP in the timberdale FPGA.
1361
1362config GPIO_TPS65086
1363	tristate "TI TPS65086 GPO"
1364	depends on MFD_TPS65086
1365	help
1366	  This driver supports the GPO on TI TPS65086x PMICs.
1367
1368config GPIO_TPS65218
1369	tristate "TPS65218 GPIO"
1370	depends on MFD_TPS65218
1371	help
1372	  Select this option to enable GPIO driver for the TPS65218
1373	  chip family.
1374
1375config GPIO_TPS6586X
1376	bool "TPS6586X GPIO"
1377	depends on MFD_TPS6586X
1378	help
1379	  Select this option to enable GPIO driver for the TPS6586X
1380	  chip family.
1381
1382config GPIO_TPS65910
1383	bool "TPS65910 GPIO"
1384	depends on MFD_TPS65910
1385	help
1386	  Select this option to enable GPIO driver for the TPS65910
1387	  chip family.
1388
1389config GPIO_TPS65912
1390	tristate "TI TPS65912 GPIO"
1391	depends on MFD_TPS65912
1392	help
1393	  This driver supports TPS65912 GPIO chip.
1394
1395config GPIO_TPS68470
1396	bool "TPS68470 GPIO"
1397	depends on INTEL_SKL_INT3472
1398	help
1399	  Select this option to enable GPIO driver for the TPS68470
1400	  chip family.
1401	  There are 7 GPIOs and few sensor-related GPIOs supported
1402	  by the TPS68470. While the 7 GPIOs can be configured as
1403	  input or output as appropriate, the sensor related GPIOs
1404	  are "output only" GPIOs.
1405
1406	  This driver config is bool, as the GPIO functionality
1407	  of the TPS68470 must be available before dependent
1408	  drivers are loaded.
1409
1410config GPIO_TQMX86
1411	tristate "TQ-Systems QTMX86 GPIO"
1412	depends on MFD_TQMX86 || COMPILE_TEST
1413	depends on HAS_IOPORT_MAP
1414	select GPIOLIB_IRQCHIP
1415	help
1416	  This driver supports GPIO on the TQMX86 IO controller.
1417
1418config GPIO_TWL4030
1419	tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1420	depends on TWL4030_CORE
1421	help
1422	  Say yes here to access the GPIO signals of various multi-function
1423	  power management chips from Texas Instruments.
1424
1425config GPIO_TWL6040
1426	tristate "TWL6040 GPO"
1427	depends on TWL6040_CORE
1428	help
1429	  Say yes here to access the GPO signals of twl6040
1430	  audio chip from Texas Instruments.
1431
1432config GPIO_UCB1400
1433	tristate "Philips UCB1400 GPIO"
1434	depends on UCB1400_CORE
1435	help
1436	  This enables support for the Philips UCB1400 GPIO pins.
1437	  The UCB1400 is an AC97 audio codec.
1438
1439config GPIO_WHISKEY_COVE
1440	tristate "GPIO support for Whiskey Cove PMIC"
1441	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1442	select GPIOLIB_IRQCHIP
1443	help
1444	  Support for GPIO pins on Whiskey Cove PMIC.
1445
1446	  Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC
1447	  inside.
1448
1449	  This driver can also be built as a module. If so, the module will be
1450	  called gpio-wcove.
1451
1452config GPIO_WM831X
1453	tristate "WM831x GPIOs"
1454	depends on MFD_WM831X
1455	help
1456	  Say yes here to access the GPIO signals of WM831x power management
1457	  chips from Wolfson Microelectronics.
1458
1459config GPIO_WM8350
1460	tristate "WM8350 GPIOs"
1461	depends on MFD_WM8350
1462	help
1463	  Say yes here to access the GPIO signals of WM8350 power management
1464	  chips from Wolfson Microelectronics.
1465
1466config GPIO_WM8994
1467	tristate "WM8994 GPIOs"
1468	depends on MFD_WM8994
1469	help
1470	  Say yes here to access the GPIO signals of WM8994 audio hub
1471	  CODECs from Wolfson Microelectronics.
1472
1473endmenu
1474
1475menu "PCI GPIO expanders"
1476	depends on PCI
1477
1478config GPIO_AMD8111
1479	tristate "AMD 8111 GPIO driver"
1480	depends on X86 || COMPILE_TEST
1481	depends on HAS_IOPORT_MAP
1482	help
1483	  The AMD 8111 southbridge contains 32 GPIO pins which can be used.
1484
1485	  Note that usually system firmware/ACPI handles GPIO pins on their
1486	  own and users might easily break their systems with uncareful usage
1487	  of this driver!
1488
1489	  If unsure, say N
1490
1491config GPIO_BT8XX
1492	tristate "BT8XX GPIO abuser"
1493	depends on VIDEO_BT848=n
1494	help
1495	  The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1496	  as a cheap PCI GPIO card.
1497
1498	  This chip can be found on Miro, Hauppauge and STB TV-cards.
1499
1500	  The card needs to be physically altered for using it as a
1501	  GPIO card. For more information on how to build a GPIO card
1502	  from a BT8xx TV card, see the documentation file at
1503	  Documentation/driver-api/gpio/bt8xxgpio.rst
1504
1505	  If unsure, say N.
1506
1507config GPIO_MERRIFIELD
1508	tristate "Intel Merrifield GPIO support"
1509	depends on X86_INTEL_MID
1510	select GPIOLIB_IRQCHIP
1511	help
1512	  Say Y here to support Intel Merrifield GPIO.
1513
1514config GPIO_MLXBF
1515	tristate "Mellanox BlueField SoC GPIO"
1516	depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1517	select GPIO_GENERIC
1518	help
1519	  Say Y here if you want GPIO support on Mellanox BlueField SoC.
1520
1521config GPIO_MLXBF2
1522	tristate "Mellanox BlueField 2 SoC GPIO"
1523	depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1524	select GPIO_GENERIC
1525	help
1526	  Say Y here if you want GPIO support on Mellanox BlueField 2 SoC.
1527
1528config GPIO_ML_IOH
1529	tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1530	depends on X86 || COMPILE_TEST
1531	select GENERIC_IRQ_CHIP
1532	help
1533	  ML7213 is companion chip for Intel Atom E6xx series.
1534	  This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output
1535	  Hub) which is for IVI (In-Vehicle Infotainment) use.
1536	  This driver can access the IOH's GPIO device.
1537
1538config GPIO_PCH
1539	tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO"
1540	depends on X86_32 || MIPS || COMPILE_TEST
1541	select GENERIC_IRQ_CHIP
1542	help
1543	  This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff,
1544	  which is an IOH (Input/Output Hub) for x86 embedded processor.
1545	  This driver can access PCH GPIO device.
1546
1547	  This driver also can be used for LAPIS Semiconductor IOH (Input/
1548	  Output Hub), ML7223 and ML7831.
1549	  ML7223 IOH is for MP (Media Phone) use.
1550	  ML7831 IOH is for general purpose use.
1551	  ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1552	  ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1553
1554config GPIO_PCI_IDIO_16
1555	tristate "ACCES PCI-IDIO-16 GPIO support"
1556	select GPIOLIB_IRQCHIP
1557	help
1558	  Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1559	  generated when any of the inputs change state (low to high or high to
1560	  low). Input filter control is not supported by this driver, and the
1561	  input filters are deactivated by this driver.
1562
1563config GPIO_PCIE_IDIO_24
1564	tristate "ACCES PCIe-IDIO-24 GPIO support"
1565	select GPIOLIB_IRQCHIP
1566	help
1567	  Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1568	  PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1569	  when any of the inputs change state (low to high or high to low).
1570	  Input filter control is not supported by this driver, and the input
1571	  filters are deactivated by this driver.
1572
1573config GPIO_RDC321X
1574	tristate "RDC R-321x GPIO support"
1575	select MFD_CORE
1576	select MFD_RDC321X
1577	help
1578	  Support for the RDC R321x SoC GPIOs over southbridge
1579	  PCI configuration space.
1580
1581config GPIO_SODAVILLE
1582	bool "Intel Sodaville GPIO support"
1583	depends on X86 && OF
1584	select GPIO_GENERIC
1585	select GENERIC_IRQ_CHIP
1586	help
1587	  Say Y here to support Intel Sodaville GPIO.
1588
1589endmenu
1590
1591menu "SPI GPIO expanders"
1592	depends on SPI_MASTER
1593
1594config GPIO_74X164
1595	tristate "74x164 serial-in/parallel-out 8-bits shift register"
1596	depends on OF_GPIO
1597	help
1598	  Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1599	  shift registers. This driver can be used to provide access
1600	  to more GPIO outputs.
1601
1602config GPIO_MAX3191X
1603	tristate "Maxim MAX3191x industrial serializer"
1604	select CRC8
1605	help
1606	  GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1607	  MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1608	  chip to make 8 digital 24V inputs available via SPI.  Supports
1609	  CRC checksums to guard against electromagnetic interference,
1610	  as well as undervoltage and overtemperature detection.
1611
1612config GPIO_MAX7301
1613	tristate "Maxim MAX7301 GPIO expander"
1614	select GPIO_MAX730X
1615	help
1616	  GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1617
1618config GPIO_MC33880
1619	tristate "Freescale MC33880 high-side/low-side switch"
1620	help
1621	  SPI driver for Freescale MC33880 high-side/low-side switch.
1622	  This provides GPIO interface supporting inputs and outputs.
1623
1624config GPIO_PISOSR
1625	tristate "Generic parallel-in/serial-out shift register"
1626	help
1627	  GPIO driver for SPI compatible parallel-in/serial-out shift
1628	  registers. These are input only devices.
1629
1630config GPIO_XRA1403
1631	tristate "EXAR XRA1403 16-bit GPIO expander"
1632	select REGMAP_SPI
1633	help
1634	  GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1635
1636config GPIO_MOXTET
1637	tristate "Turris Mox Moxtet bus GPIO expander"
1638	depends on MOXTET
1639	help
1640	  Say yes here if you are building for the Turris Mox router.
1641	  This is the driver needed for configuring the GPIOs via the Moxtet
1642	  bus. For example the Mox module with SFP cage needs this driver
1643	  so that phylink can use corresponding GPIOs.
1644
1645endmenu
1646
1647menu "USB GPIO expanders"
1648	depends on USB
1649
1650config GPIO_VIPERBOARD
1651	tristate "Viperboard GPIO a & b support"
1652	depends on MFD_VIPERBOARD
1653	help
1654	  Say yes here to access the GPIO signals of Nano River
1655	  Technologies Viperboard. There are two GPIO chips on the
1656	  board: gpioa and gpiob.
1657	  See viperboard API specification and Nano
1658	  River Tech's viperboard.h for detailed meaning
1659	  of the module parameters.
1660
1661endmenu
1662
1663menu "Virtual GPIO drivers"
1664
1665config GPIO_AGGREGATOR
1666	tristate "GPIO Aggregator"
1667	help
1668	  Say yes here to enable the GPIO Aggregator, which provides a way to
1669	  aggregate existing GPIO lines into a new virtual GPIO chip.
1670	  This can serve the following purposes:
1671	    - Assign permissions for a collection of GPIO lines to a user,
1672	    - Export a collection of GPIO lines to a virtual machine,
1673	    - Provide a generic driver for a GPIO-operated device in an
1674	      industrial control context, to be operated from userspace using
1675	      the GPIO chardev interface.
1676
1677config GPIO_MOCKUP
1678	tristate "GPIO Testing Driver"
1679	select IRQ_SIM
1680	help
1681	  This enables GPIO Testing driver, which provides a way to test GPIO
1682	  subsystem through sysfs (or char device) and debugfs.
1683	  User could use it through the script in
1684	  tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1685	  it.
1686
1687config GPIO_VIRTIO
1688	tristate "VirtIO GPIO support"
1689	depends on VIRTIO
1690	select GPIOLIB_IRQCHIP
1691	help
1692	  Say Y here to enable guest support for virtio-based GPIO controllers.
1693
1694	  These virtual GPIOs can be routed to real GPIOs or attached to
1695	  simulators on the host (like QEMU).
1696
1697endmenu
1698
1699endif
1700