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1# SPDX-License-Identifier: GPL-2.0-only
2#
3# GPIO infrastructure and drivers
4#
5
6config ARCH_HAVE_CUSTOM_GPIO_H
7	bool
8	help
9	  Selecting this config option from the architecture Kconfig allows
10	  the architecture to provide a custom asm/gpio.h implementation
11	  overriding the default implementations.  New uses of this are
12	  strongly discouraged.
13
14menuconfig GPIOLIB
15	bool "GPIO Support"
16	help
17	  This enables GPIO support through the generic GPIO library.
18	  You only need to enable this, if you also want to enable
19	  one or more of the GPIO drivers below.
20
21	  If unsure, say N.
22
23if GPIOLIB
24
25config GPIOLIB_FASTPATH_LIMIT
26	int "Maximum number of GPIOs for fast path"
27	range 32 512
28	default 512
29	help
30	  This adjusts the point at which certain APIs will switch from
31	  using a stack allocated buffer to a dynamically allocated buffer.
32
33	  You shouldn't need to change this unless you really need to
34	  optimize either stack space or performance. Change this carefully
35	  since setting an incorrect value could cause stack corruption.
36
37config OF_GPIO
38	def_bool y
39	depends on OF
40	depends on HAS_IOMEM
41
42config GPIO_ACPI
43	def_bool y
44	depends on ACPI
45
46config GPIOLIB_IRQCHIP
47	select IRQ_DOMAIN
48	bool
49
50config DEBUG_GPIO
51	bool "Debug GPIO calls"
52	depends on DEBUG_KERNEL
53	help
54	  Say Y here to add some extra checks and diagnostics to GPIO calls.
55	  These checks help ensure that GPIOs have been properly initialized
56	  before they are used, and that sleeping calls are not made from
57	  non-sleeping contexts.  They can make bitbanged serial protocols
58	  slower.  The diagnostics help catch the type of setup errors
59	  that are most common when setting up new platforms or boards.
60
61config GPIO_SYSFS
62	bool "/sys/class/gpio/... (sysfs interface)"
63	depends on SYSFS
64	help
65	  Say Y here to add the legacy sysfs interface for GPIOs.
66
67	  This ABI is deprecated. If you want to use GPIO from userspace,
68	  use the character device /dev/gpiochipN with the appropriate
69	  ioctl() operations instead. The character device is always
70	  available.
71
72config GPIO_GENERIC
73	depends on HAS_IOMEM # Only for IOMEM drivers
74	tristate
75
76# put drivers in the right section, in alphabetical order
77
78# This symbol is selected by both I2C and SPI expanders
79config GPIO_MAX730X
80	tristate
81
82menu "Memory mapped GPIO drivers"
83	depends on HAS_IOMEM
84
85config GPIO_74XX_MMIO
86	tristate "GPIO driver for 74xx-ICs with MMIO access"
87	depends on OF_GPIO
88	select GPIO_GENERIC
89	help
90	  Say yes here to support GPIO functionality for 74xx-compatible ICs
91	  with MMIO access. Compatible models include:
92	    1 bit:	741G125 (Input), 741G74 (Output)
93	    2 bits:	742G125 (Input), 7474 (Output)
94	    4 bits:	74125 (Input), 74175 (Output)
95	    6 bits:	74365 (Input), 74174 (Output)
96	    8 bits:	74244 (Input), 74273 (Output)
97	    16 bits:	741624 (Input), 7416374 (Output)
98
99config GPIO_ALTERA
100	tristate "Altera GPIO"
101	depends on OF_GPIO
102	select GPIOLIB_IRQCHIP
103	help
104	  Say Y or M here to build support for the Altera PIO device.
105
106	  If driver is built as a module it will be called gpio-altera.
107
108config GPIO_AMDPT
109	tristate "AMD Promontory GPIO support"
110	depends on ACPI
111	select GPIO_GENERIC
112	help
113	  driver for GPIO functionality on Promontory IOHub
114	  Require ACPI ASL code to enumerate as a platform device.
115
116config GPIO_ASPEED
117	tristate "Aspeed GPIO support"
118	depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
119	select GPIOLIB_IRQCHIP
120	help
121	  Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
122
123config GPIO_ATH79
124	tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
125	default y if ATH79
126	depends on ATH79 || COMPILE_TEST
127	select GPIO_GENERIC
128	select GPIOLIB_IRQCHIP
129	help
130	  Select this option to enable GPIO driver for
131	  Atheros AR71XX/AR724X/AR913X SoC devices.
132
133config GPIO_RASPBERRYPI_EXP
134	tristate "Raspberry Pi 3 GPIO Expander"
135	default RASPBERRYPI_FIRMWARE
136	depends on OF_GPIO
137	# Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
138	# happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
139	depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
140	help
141	  Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
142	  the firmware mailbox to communicate with VideoCore on BCM283x chips.
143
144config GPIO_BCM_KONA
145	bool "Broadcom Kona GPIO"
146	depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
147	help
148	  Turn on GPIO support for Broadcom "Kona" chips.
149
150config GPIO_BRCMSTB
151	tristate "BRCMSTB GPIO support"
152	default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
153	depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
154	select GPIO_GENERIC
155	select IRQ_DOMAIN
156	help
157	  Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
158
159config GPIO_CADENCE
160	tristate "Cadence GPIO support"
161	depends on OF_GPIO
162	select GPIO_GENERIC
163	select GPIOLIB_IRQCHIP
164	help
165	  Say yes here to enable support for Cadence GPIO controller.
166
167config GPIO_CLPS711X
168	tristate "CLPS711X GPIO support"
169	depends on ARCH_CLPS711X || COMPILE_TEST
170	select GPIO_GENERIC
171	help
172	  Say yes here to support GPIO on CLPS711X SoCs.
173
174config GPIO_DAVINCI
175	bool "TI Davinci/Keystone GPIO support"
176	default y if ARCH_DAVINCI
177	depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3)
178	help
179	  Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
180
181config GPIO_DWAPB
182	tristate "Synopsys DesignWare APB GPIO driver"
183	select GPIO_GENERIC
184	select GENERIC_IRQ_CHIP
185	help
186	  Say Y or M here to build support for the Synopsys DesignWare APB
187	  GPIO block.
188
189config GPIO_EIC_SPRD
190	tristate "Spreadtrum EIC support"
191	depends on ARCH_SPRD || COMPILE_TEST
192	depends on OF_GPIO
193	select GPIOLIB_IRQCHIP
194	help
195	  Say yes here to support Spreadtrum EIC device.
196
197config GPIO_EM
198	tristate "Emma Mobile GPIO"
199	depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
200	help
201	  Say yes here to support GPIO on Renesas Emma Mobile SoCs.
202
203config GPIO_EP93XX
204	def_bool y
205	depends on ARCH_EP93XX
206	select GPIO_GENERIC
207	select GPIOLIB_IRQCHIP
208
209config GPIO_EXAR
210	tristate "Support for GPIO pins on XR17V352/354/358"
211	depends on SERIAL_8250_EXAR
212	help
213	  Selecting this option will enable handling of GPIO pins present
214	  on Exar XR17V352/354/358 chips.
215
216config GPIO_GE_FPGA
217	bool "GE FPGA based GPIO"
218	depends on GE_FPGA
219	select GPIO_GENERIC
220	help
221	  Support for common GPIO functionality provided on some GE Single Board
222	  Computers.
223
224	  This driver provides basic support (configure as input or output, read
225	  and write pin state) for GPIO implemented in a number of GE single
226	  board computers.
227
228config GPIO_FTGPIO010
229	bool "Faraday FTGPIO010 GPIO"
230	depends on OF_GPIO
231	select GPIO_GENERIC
232	select GPIOLIB_IRQCHIP
233	default (ARCH_GEMINI || ARCH_MOXART)
234	help
235	  Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
236	  Cortina systems Gemini platforms, Moxa ART and others.
237
238config GPIO_GENERIC_PLATFORM
239	tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
240	select GPIO_GENERIC
241	help
242	  Say yes here to support basic platform_device memory-mapped GPIO controllers.
243
244config GPIO_GRGPIO
245	tristate "Aeroflex Gaisler GRGPIO support"
246	depends on OF_GPIO
247	select GPIO_GENERIC
248	select IRQ_DOMAIN
249	help
250	  Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
251	  VHDL IP core library.
252
253config GPIO_HLWD
254	tristate "Nintendo Wii (Hollywood) GPIO"
255	depends on OF_GPIO
256	select GPIO_GENERIC
257	select GPIOLIB_IRQCHIP
258	help
259	  Select this to support the GPIO controller of the Nintendo Wii.
260
261	  If unsure, say N.
262
263config GPIO_ICH
264	tristate "Intel ICH GPIO"
265	depends on PCI && X86
266	select MFD_CORE
267	select LPC_ICH
268	help
269	  Say yes here to support the GPIO functionality of a number of Intel
270	  ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
271	  ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
272	  Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
273
274	  If unsure, say N.
275
276config GPIO_IOP
277	tristate "Intel IOP GPIO"
278	depends on ARCH_IOP32X || COMPILE_TEST
279	select GPIO_GENERIC
280	help
281	  Say yes here to support the GPIO functionality of a number of Intel
282	  IOP32X or IOP33X.
283
284	  If unsure, say N.
285
286config GPIO_IXP4XX
287	bool "Intel IXP4xx GPIO"
288	depends on ARM # For <asm/mach-types.h>
289	depends on ARCH_IXP4XX
290	select GPIO_GENERIC
291	select GPIOLIB_IRQCHIP
292	select IRQ_DOMAIN_HIERARCHY
293	help
294	  Say yes here to support the GPIO functionality of a number of Intel
295	  IXP4xx series of chips.
296
297	  If unsure, say N.
298
299config GPIO_LOONGSON
300	bool "Loongson-2/3 GPIO support"
301	depends on CPU_LOONGSON2 || CPU_LOONGSON3
302	help
303	  driver for GPIO functionality on Loongson-2F/3A/3B processors.
304
305config GPIO_LPC18XX
306	tristate "NXP LPC18XX/43XX GPIO support"
307	default y if ARCH_LPC18XX
308	depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
309	select IRQ_DOMAIN_HIERARCHY
310	help
311	  Select this option to enable GPIO driver for
312	  NXP LPC18XX/43XX devices.
313
314config GPIO_LPC32XX
315	tristate "NXP LPC32XX GPIO support"
316	depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST)
317	help
318	  Select this option to enable GPIO driver for
319	  NXP LPC32XX devices.
320
321config GPIO_LYNXPOINT
322	tristate "Intel Lynxpoint GPIO support"
323	depends on ACPI && X86
324	select GPIOLIB_IRQCHIP
325	help
326	  driver for GPIO functionality on Intel Lynxpoint PCH chipset
327	  Requires ACPI device enumeration code to set up a platform device.
328
329config GPIO_MB86S7X
330	tristate "GPIO support for Fujitsu MB86S7x Platforms"
331	help
332	  Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
333
334config GPIO_MENZ127
335	tristate "MEN 16Z127 GPIO support"
336	depends on MCB
337	select GPIO_GENERIC
338	help
339	  Say yes here to support the MEN 16Z127 GPIO Controller
340
341config GPIO_MM_LANTIQ
342	bool "Lantiq Memory mapped GPIOs"
343	depends on LANTIQ && SOC_XWAY
344	help
345	  This enables support for memory mapped GPIOs on the External Bus Unit
346	  (EBU) found on Lantiq SoCs. The gpios are output only as they are
347	  created by attaching a 16bit latch to the bus.
348
349config GPIO_MPC5200
350	def_bool y
351	depends on PPC_MPC52xx
352
353config GPIO_MPC8XXX
354	bool "MPC512x/MPC8xxx/QorIQ GPIO support"
355	depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
356		   FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
357		   COMPILE_TEST
358	select GPIO_GENERIC
359	select IRQ_DOMAIN
360	help
361	  Say Y here if you're going to use hardware that connects to the
362	  MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
363
364config GPIO_MT7621
365	bool "Mediatek MT7621 GPIO Support"
366	depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
367	depends on OF_GPIO
368	select GPIO_GENERIC
369	select GPIOLIB_IRQCHIP
370	help
371	  Say yes here to support the Mediatek MT7621 SoC GPIO device
372
373config GPIO_MVEBU
374	def_bool y
375	depends on PLAT_ORION || ARCH_MVEBU
376	depends on OF_GPIO
377	select GENERIC_IRQ_CHIP
378	select REGMAP_MMIO
379
380config GPIO_MXC
381	def_bool y
382	depends on ARCH_MXC
383	select GPIO_GENERIC
384	select GENERIC_IRQ_CHIP
385
386config GPIO_MXS
387	def_bool y
388	depends on ARCH_MXS
389	select GPIO_GENERIC
390	select GENERIC_IRQ_CHIP
391
392config GPIO_OCTEON
393	tristate "Cavium OCTEON GPIO"
394	depends on GPIOLIB && CAVIUM_OCTEON_SOC
395	default y
396	help
397	  Say yes here to support the on-chip GPIO lines on the OCTEON
398	  family of SOCs.
399
400config GPIO_OMAP
401	tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
402	default y if ARCH_OMAP
403	depends on ARM
404	select GENERIC_IRQ_CHIP
405	select GPIOLIB_IRQCHIP
406	help
407	  Say yes here to enable GPIO support for TI OMAP SoCs.
408
409config GPIO_PL061
410	bool "PrimeCell PL061 GPIO support"
411	depends on ARM_AMBA
412	select IRQ_DOMAIN
413	select GPIOLIB_IRQCHIP
414	help
415	  Say yes here to support the PrimeCell PL061 GPIO device
416
417config GPIO_PMIC_EIC_SPRD
418	tristate "Spreadtrum PMIC EIC support"
419	depends on MFD_SC27XX_PMIC || COMPILE_TEST
420	depends on OF_GPIO
421	select GPIOLIB_IRQCHIP
422	help
423	  Say yes here to support Spreadtrum PMIC EIC device.
424
425config GPIO_PXA
426	bool "PXA GPIO support"
427	depends on ARCH_PXA || ARCH_MMP
428	help
429	  Say yes here to support the PXA GPIO device
430
431config GPIO_RCAR
432	tristate "Renesas R-Car GPIO"
433	depends on ARCH_RENESAS || COMPILE_TEST
434	select GPIOLIB_IRQCHIP
435	help
436	  Say yes here to support GPIO on Renesas R-Car SoCs.
437
438config GPIO_REG
439	bool
440	help
441	  A 32-bit single register GPIO fixed in/out implementation.  This
442	  can be used to represent any register as a set of GPIO signals.
443
444config GPIO_SAMA5D2_PIOBU
445	tristate "SAMA5D2 PIOBU GPIO support"
446	depends on MFD_SYSCON
447	depends on OF_GPIO
448	select GPIO_SYSCON
449	help
450	  Say yes here to use the PIOBU pins as GPIOs.
451
452	  PIOBU pins on the SAMA5D2 can be used as GPIOs.
453	  The difference from regular GPIOs is that they
454	  maintain their value during backup/self-refresh.
455
456config GPIO_SIOX
457	tristate "SIOX GPIO support"
458	depends on SIOX
459	select GPIOLIB_IRQCHIP
460	help
461	  Say yes here to support SIOX I/O devices. These are units connected
462	  via a SIOX bus and have a number of fixed-direction I/O lines.
463
464config GPIO_SNPS_CREG
465	bool "Synopsys GPIO via CREG (Control REGisters) driver"
466	depends on ARC || COMPILE_TEST
467	depends on OF_GPIO
468	help
469	  This driver supports GPIOs via CREG on various Synopsys SoCs.
470	  This is a single-register MMIO GPIO driver for complex cases
471	  where only several fields in register belong to GPIO lines and
472	  each GPIO line owns a field with different length and on/off value.
473
474config GPIO_SPEAR_SPICS
475	bool "ST SPEAr13xx SPI Chip Select as GPIO support"
476	depends on PLAT_SPEAR
477	select GENERIC_IRQ_CHIP
478	help
479	  Say yes here to support ST SPEAr SPI Chip Select as GPIO device
480
481config GPIO_SPRD
482	tristate "Spreadtrum GPIO support"
483	depends on ARCH_SPRD || COMPILE_TEST
484	depends on OF_GPIO
485	select GPIOLIB_IRQCHIP
486	help
487	  Say yes here to support Spreadtrum GPIO device.
488
489config GPIO_STA2X11
490	bool "STA2x11/ConneXt GPIO support"
491	depends on MFD_STA2X11
492	select GENERIC_IRQ_CHIP
493	help
494	  Say yes here to support the STA2x11/ConneXt GPIO device.
495	  The GPIO module has 128 GPIO pins with alternate functions.
496
497config GPIO_STP_XWAY
498	bool "XWAY STP GPIOs"
499	depends on SOC_XWAY || COMPILE_TEST
500	depends on OF_GPIO
501	help
502	  This enables support for the Serial To Parallel (STP) unit found on
503	  XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
504	  that can be up to 24 bit. This peripheral is aimed at driving leds.
505	  Some of the gpios/leds can be auto updated by the soc with dsl and
506	  phy status.
507
508config GPIO_SYSCON
509	tristate "GPIO based on SYSCON"
510	depends on MFD_SYSCON && OF
511	help
512	  Say yes here to support GPIO functionality though SYSCON driver.
513
514config GPIO_TB10X
515	bool
516	select GPIO_GENERIC
517	select GENERIC_IRQ_CHIP
518	select OF_GPIO
519
520config GPIO_TEGRA
521	bool "NVIDIA Tegra GPIO support"
522	default ARCH_TEGRA
523	depends on ARCH_TEGRA || COMPILE_TEST
524	depends on OF_GPIO
525	help
526	  Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
527
528config GPIO_TEGRA186
529	tristate "NVIDIA Tegra186 GPIO support"
530	default ARCH_TEGRA_186_SOC
531	depends on ARCH_TEGRA_186_SOC || COMPILE_TEST
532	depends on OF_GPIO
533	select GPIOLIB_IRQCHIP
534	help
535	  Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
536
537config GPIO_TS4800
538	tristate "TS-4800 DIO blocks and compatibles"
539	depends on OF_GPIO
540	depends on SOC_IMX51 || COMPILE_TEST
541	select GPIO_GENERIC
542	help
543	  This driver support TS-4800 FPGA GPIO controllers.
544
545config GPIO_THUNDERX
546	tristate "Cavium ThunderX/OCTEON-TX GPIO"
547	depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
548	depends on PCI_MSI
549	select IRQ_DOMAIN_HIERARCHY
550	select IRQ_FASTEOI_HIERARCHY_HANDLERS
551	help
552	  Say yes here to support the on-chip GPIO lines on the ThunderX
553	  and OCTEON-TX families of SoCs.
554
555config GPIO_UNIPHIER
556	tristate "UniPhier GPIO support"
557	depends on ARCH_UNIPHIER || COMPILE_TEST
558	depends on OF_GPIO
559	select IRQ_DOMAIN_HIERARCHY
560	help
561	  Say yes here to support UniPhier GPIOs.
562
563config GPIO_VF610
564	def_bool y
565	depends on ARCH_MXC && SOC_VF610
566	select GPIOLIB_IRQCHIP
567	help
568	  Say yes here to support Vybrid vf610 GPIOs.
569
570config GPIO_VR41XX
571	tristate "NEC VR4100 series General-purpose I/O Uint support"
572	depends on CPU_VR41XX
573	help
574	  Say yes here to support the NEC VR4100 series General-purpose I/O Uint
575
576config GPIO_VX855
577	tristate "VIA VX855/VX875 GPIO"
578	depends on (X86 || COMPILE_TEST) && PCI
579	select MFD_CORE
580	select MFD_VX855
581	help
582	  Support access to the VX855/VX875 GPIO lines through the gpio library.
583
584	  This driver provides common support for accessing the device,
585	  additional drivers must be enabled in order to use the
586	  functionality of the device.
587
588config GPIO_XGENE
589	bool "APM X-Gene GPIO controller support"
590	depends on ARM64 && OF_GPIO
591	help
592	  This driver is to support the GPIO block within the APM X-Gene SoC
593	  platform's generic flash controller. The GPIO pins are muxed with
594	  the generic flash controller's address and data pins. Say yes
595	  here to enable the GFC GPIO functionality.
596
597config GPIO_XGENE_SB
598	tristate "APM X-Gene GPIO standby controller support"
599	depends on ARCH_XGENE && OF_GPIO
600	select GPIO_GENERIC
601	select GPIOLIB_IRQCHIP
602	select IRQ_DOMAIN_HIERARCHY
603	help
604	  This driver supports the GPIO block within the APM X-Gene
605	  Standby Domain. Say yes here to enable the GPIO functionality.
606
607config GPIO_XILINX
608	tristate "Xilinx GPIO support"
609	help
610	  Say yes here to support the Xilinx FPGA GPIO device
611
612config GPIO_XLP
613	tristate "Netlogic XLP GPIO support"
614	depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
615	select GPIOLIB_IRQCHIP
616	help
617	  This driver provides support for GPIO interface on Netlogic XLP MIPS64
618	  SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
619	  XLP9XX and XLP5XX. The same GPIO controller block is also present in
620	  Cavium's ThunderX2 CN99XX SoCs.
621
622	  If unsure, say N.
623
624config GPIO_XTENSA
625	bool "Xtensa GPIO32 support"
626	depends on XTENSA
627	depends on HAVE_XTENSA_GPIO32
628	depends on !SMP
629	help
630	  Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
631	  and EXPSTATE (output) ports
632
633config GPIO_ZEVIO
634	bool "LSI ZEVIO SoC memory mapped GPIOs"
635	depends on ARM && OF_GPIO
636	help
637	  Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
638
639config GPIO_ZYNQ
640	tristate "Xilinx Zynq GPIO support"
641	depends on ARCH_ZYNQ || ARCH_ZYNQMP
642	select GPIOLIB_IRQCHIP
643	help
644	  Say yes here to support Xilinx Zynq GPIO controller.
645
646config GPIO_ZX
647	bool "ZTE ZX GPIO support"
648	depends on ARCH_ZX || COMPILE_TEST
649	select GPIOLIB_IRQCHIP
650	help
651	  Say yes here to support the GPIO device on ZTE ZX SoCs.
652
653config GPIO_LOONGSON1
654	tristate "Loongson1 GPIO support"
655	depends on MACH_LOONGSON32
656	select GPIO_GENERIC
657	help
658	  Say Y or M here to support GPIO on Loongson1 SoCs.
659
660config GPIO_AMD_FCH
661	tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
662	help
663	  This option enables driver for GPIO on AMDs Fusion Controller Hub,
664	  as found on G-series SOCs (eg. GX-412TC)
665
666	  Note: This driver doesn't registers itself automatically, as it
667	  needs to be provided with platform specific configuration.
668	  (See eg. CONFIG_PCENGINES_APU2.)
669endmenu
670
671menu "Port-mapped I/O GPIO drivers"
672	depends on X86 # Unconditional I/O space access
673
674config GPIO_104_DIO_48E
675	tristate "ACCES 104-DIO-48E GPIO support"
676	depends on PC104
677	select ISA_BUS_API
678	select GPIOLIB_IRQCHIP
679	help
680	  Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
681	  104-DIO-24E). The base port addresses for the devices may be
682	  configured via the base module parameter. The interrupt line numbers
683	  for the devices may be configured via the irq module parameter.
684
685config GPIO_104_IDIO_16
686	tristate "ACCES 104-IDIO-16 GPIO support"
687	depends on PC104
688	select ISA_BUS_API
689	select GPIOLIB_IRQCHIP
690	help
691	  Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
692	  104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
693	  base port addresses for the devices may be configured via the base
694	  module parameter. The interrupt line numbers for the devices may be
695	  configured via the irq module parameter.
696
697config GPIO_104_IDI_48
698	tristate "ACCES 104-IDI-48 GPIO support"
699	depends on PC104
700	select ISA_BUS_API
701	select GPIOLIB_IRQCHIP
702	help
703	  Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
704	  104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
705	  the devices may be configured via the base module parameter. The
706	  interrupt line numbers for the devices may be configured via the irq
707	  module parameter.
708
709config GPIO_F7188X
710	tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
711	help
712	  This option enables support for GPIOs found on Fintek Super-I/O
713	  chips F71869, F71869A, F71882FG, F71889F and F81866.
714
715	  To compile this driver as a module, choose M here: the module will
716	  be called f7188x-gpio.
717
718config GPIO_GPIO_MM
719	tristate "Diamond Systems GPIO-MM GPIO support"
720	depends on PC104
721	select ISA_BUS_API
722	help
723	  Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
724
725	  The Diamond Systems GPIO-MM device features 48 lines of digital I/O
726	  via the emulation of dual 82C55A PPI chips. This driver provides GPIO
727	  support for these 48 channels of digital I/O.
728
729	  The base port addresses for the devices may be configured via the base
730	  array module parameter.
731
732config GPIO_IT87
733	tristate "IT87xx GPIO support"
734	help
735	  Say yes here to support GPIO functionality of IT87xx Super I/O chips.
736
737	  This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
738	  supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
739	  well.
740
741	  To compile this driver as a module, choose M here: the module will
742	  be called gpio_it87
743
744config GPIO_SCH
745	tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
746	depends on (X86 || COMPILE_TEST) && PCI
747	select MFD_CORE
748	select LPC_SCH
749	help
750	  Say yes here to support GPIO interface on Intel Poulsbo SCH,
751	  Intel Tunnel Creek processor, Intel Centerton processor or
752	  Intel Quark X1000 SoC.
753
754	  The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
755	  powered by the core power rail and are turned off during sleep
756	  modes (S3 and higher). The remaining four GPIOs are powered by
757	  the Intel SCH suspend power supply. These GPIOs remain
758	  active during S3. The suspend powered GPIOs can be used to wake the
759	  system from the Suspend-to-RAM state.
760
761	  The Intel Tunnel Creek processor has 5 GPIOs powered by the
762	  core power rail and 9 from suspend power supply.
763
764	  The Intel Centerton processor has a total of 30 GPIO pins.
765	  Twenty-one are powered by the core power rail and 9 from the
766	  suspend power supply.
767
768	  The Intel Quark X1000 SoC has 2 GPIOs powered by the core
769	  power well and 6 from the suspend power well.
770
771config GPIO_SCH311X
772	tristate "SMSC SCH311x SuperI/O GPIO"
773	help
774	  Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
775	  SCH3116 "Super I/O" chipsets.
776
777	  To compile this driver as a module, choose M here: the module will
778	  be called gpio-sch311x.
779
780config GPIO_TS5500
781	tristate "TS-5500 DIO blocks and compatibles"
782	depends on TS5500 || COMPILE_TEST
783	help
784	  This driver supports Digital I/O exposed by pin blocks found on some
785	  Technologic Systems platforms. It includes, but is not limited to, 3
786	  blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
787	  LCD port.
788
789config GPIO_WINBOND
790	tristate "Winbond Super I/O GPIO support"
791	select ISA_BUS_API
792	help
793	  This option enables support for GPIOs found on Winbond Super I/O
794	  chips.
795	  Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
796	  supported.
797
798	  You will need to provide a module parameter "gpios", or a
799	  boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
800	  ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
801
802	  To compile this driver as a module, choose M here: the module will
803	  be called gpio-winbond.
804
805config GPIO_WS16C48
806	tristate "WinSystems WS16C48 GPIO support"
807	select ISA_BUS_API
808	select GPIOLIB_IRQCHIP
809	help
810	  Enables GPIO support for the WinSystems WS16C48. The base port
811	  addresses for the devices may be configured via the base module
812	  parameter. The interrupt line numbers for the devices may be
813	  configured via the irq module parameter.
814
815endmenu
816
817menu "I2C GPIO expanders"
818	depends on I2C
819
820config GPIO_ADP5588
821	tristate "ADP5588 I2C GPIO expander"
822	help
823	  This option enables support for 18 GPIOs found
824	  on Analog Devices ADP5588 GPIO Expanders.
825
826config GPIO_ADP5588_IRQ
827	bool "Interrupt controller support for ADP5588"
828	depends on GPIO_ADP5588=y
829	select GPIOLIB_IRQCHIP
830	help
831	  Say yes here to enable the adp5588 to be used as an interrupt
832	  controller. It requires the driver to be built in the kernel.
833
834config GPIO_ADNP
835	tristate "Avionic Design N-bit GPIO expander"
836	depends on OF_GPIO
837	select GPIOLIB_IRQCHIP
838	help
839	  This option enables support for N GPIOs found on Avionic Design
840	  I2C GPIO expanders. The register space will be extended by powers
841	  of two, so the controller will need to accommodate for that. For
842	  example: if a controller provides 48 pins, 6 registers will be
843	  enough to represent all pins, but the driver will assume a
844	  register layout for 64 pins (8 registers).
845
846config GPIO_GW_PLD
847	tristate "Gateworks PLD GPIO Expander"
848	depends on OF_GPIO
849	help
850	  Say yes here to provide access to the Gateworks I2C PLD GPIO
851	  Expander. This is used at least on the Cambria GW2358-4.
852
853config GPIO_MAX7300
854	tristate "Maxim MAX7300 GPIO expander"
855	select GPIO_MAX730X
856	help
857	  GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
858
859config GPIO_MAX732X
860	tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
861	help
862	  Say yes here to support the MAX7319, MAX7320-7327 series of I2C
863	  Port Expanders. Each IO port on these chips has a fixed role of
864	  Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
865	  Input and Output (designed by 'P'). The combinations are listed
866	  below:
867
868	  8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
869	                max7322 (4I4O), max7323 (4P4O)
870
871	  16 bits:      max7324 (8I8O), max7325 (8P8O),
872	                max7326 (4I12O), max7327 (4P12O)
873
874	  Board setup code must specify the model to use, and the start
875	  number for these GPIOs.
876
877config GPIO_MAX732X_IRQ
878	bool "Interrupt controller support for MAX732x"
879	depends on GPIO_MAX732X=y
880	select GPIOLIB_IRQCHIP
881	help
882	  Say yes here to enable the max732x to be used as an interrupt
883	  controller. It requires the driver to be built in the kernel.
884
885config GPIO_MC9S08DZ60
886	bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
887	depends on I2C=y && MACH_MX35_3DS
888	help
889	  Select this to enable the MC9S08DZ60 GPIO driver
890
891config GPIO_PCA953X
892	tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
893	select REGMAP_I2C
894	help
895	  Say yes here to provide access to several register-oriented
896	  SMBus I/O expanders, made mostly by NXP or TI.  Compatible
897	  models include:
898
899	  4 bits:       pca9536, pca9537
900
901	  8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
902	                pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
903
904	  16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
905	                tca6416
906
907	  24 bits:      tca6424
908
909	  40 bits:      pca9505, pca9698
910
911config GPIO_PCA953X_IRQ
912	bool "Interrupt controller support for PCA953x"
913	depends on GPIO_PCA953X=y
914	select GPIOLIB_IRQCHIP
915	help
916	  Say yes here to enable the pca953x to be used as an interrupt
917	  controller. It requires the driver to be built in the kernel.
918
919config GPIO_PCF857X
920	tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
921	select GPIOLIB_IRQCHIP
922	select IRQ_DOMAIN
923	help
924	  Say yes here to provide access to most "quasi-bidirectional" I2C
925	  GPIO expanders used for additional digital outputs or inputs.
926	  Most of these parts are from NXP, though TI is a second source for
927	  some of them.  Compatible models include:
928
929	  8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
930	            pca9670, pca9672, pca9674, pca9674a,
931	            max7328, max7329
932
933	  16 bits:  pcf8575, pcf8575c, pca8575,
934	            pca9671, pca9673, pca9675
935
936	  Your board setup code will need to declare the expanders in
937	  use, and assign numbers to the GPIOs they expose.  Those GPIOs
938	  can then be used from drivers and other kernel code, just like
939	  other GPIOs, but only accessible from task contexts.
940
941	  This driver provides an in-kernel interface to those GPIOs using
942	  platform-neutral GPIO calls.
943
944config GPIO_TPIC2810
945	tristate "TPIC2810 8-Bit I2C GPO expander"
946	help
947	  Say yes here to enable the GPO driver for the TI TPIC2810 chip.
948
949	  To compile this driver as a module, choose M here: the module will
950	  be called gpio-tpic2810.
951
952config GPIO_TS4900
953	tristate "Technologic Systems FPGA I2C GPIO"
954	depends on SOC_IMX6 || COMPILE_TEST
955	select REGMAP_I2C
956	help
957	  Say yes here to enabled the GPIO driver for Technologic's FPGA core.
958	  Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
959
960endmenu
961
962menu "MFD GPIO expanders"
963
964config GPIO_ADP5520
965	tristate "GPIO Support for ADP5520 PMIC"
966	depends on PMIC_ADP5520
967	help
968	  This option enables support for on-chip GPIO found
969	  on Analog Devices ADP5520 PMICs.
970
971config GPIO_ALTERA_A10SR
972	tristate "Altera Arria10 System Resource GPIO"
973	depends on MFD_ALTERA_A10SR
974	help
975	  Driver for Arria10 Development Kit GPIO expansion which
976	  includes reads of pushbuttons and DIP switches as well
977	  as writes to LEDs.
978
979config GPIO_ARIZONA
980	tristate "Wolfson Microelectronics Arizona class devices"
981	depends on MFD_ARIZONA
982	help
983	  Support for GPIOs on Wolfson Arizona class devices.
984
985config GPIO_BD70528
986	tristate "ROHM BD70528 GPIO support"
987	depends on MFD_ROHM_BD70528
988	help
989	  Support for GPIOs on ROHM BD70528 PMIC. There are four GPIOs
990	  available on the ROHM PMIC in total. The GPIOs can also
991	  generate interrupts.
992
993	  This driver can also be built as a module. If so, the module
994	  will be called gpio-bd70528.
995
996config GPIO_BD9571MWV
997	tristate "ROHM BD9571 GPIO support"
998	depends on MFD_BD9571MWV
999	help
1000	  Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
1001	  available on the ROHM PMIC in total, both of which can also
1002	  generate interrupts.
1003
1004	  This driver can also be built as a module. If so, the module
1005	  will be called gpio-bd9571mwv.
1006
1007config GPIO_CRYSTAL_COVE
1008	tristate "GPIO support for Crystal Cove PMIC"
1009	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1010	select GPIOLIB_IRQCHIP
1011	help
1012	  Support for GPIO pins on Crystal Cove PMIC.
1013
1014	  Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
1015	  inside.
1016
1017	  This driver can also be built as a module. If so, the module will be
1018	  called gpio-crystalcove.
1019
1020config GPIO_CS5535
1021	tristate "AMD CS5535/CS5536 GPIO support"
1022	depends on X86 || MIPS || COMPILE_TEST
1023	depends on MFD_CS5535
1024	help
1025	  The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1026	  can be used for quite a number of things.  The CS5535/6 is found on
1027	  AMD Geode and Lemote Yeeloong devices.
1028
1029	  If unsure, say N.
1030
1031config GPIO_DA9052
1032	tristate "Dialog DA9052 GPIO"
1033	depends on PMIC_DA9052
1034	help
1035	  Say yes here to enable the GPIO driver for the DA9052 chip.
1036
1037config GPIO_DA9055
1038	tristate "Dialog Semiconductor DA9055 GPIO"
1039	depends on MFD_DA9055
1040	help
1041	  Say yes here to enable the GPIO driver for the DA9055 chip.
1042
1043	  The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1044	  be controller by this driver.
1045
1046	  If driver is built as a module it will be called gpio-da9055.
1047
1048config GPIO_DLN2
1049	tristate "Diolan DLN2 GPIO support"
1050	depends on MFD_DLN2
1051	select GPIOLIB_IRQCHIP
1052
1053	help
1054	  Select this option to enable GPIO driver for the Diolan DLN2
1055	  board.
1056
1057	  This driver can also be built as a module. If so, the module
1058	  will be called gpio-dln2.
1059
1060config HTC_EGPIO
1061	bool "HTC EGPIO support"
1062	depends on GPIOLIB && ARM
1063	help
1064	  This driver supports the CPLD egpio chip present on
1065	  several HTC phones.  It provides basic support for input
1066	  pins, output pins, and irqs.
1067
1068config GPIO_JANZ_TTL
1069	tristate "Janz VMOD-TTL Digital IO Module"
1070	depends on MFD_JANZ_CMODIO
1071	help
1072	  This enables support for the Janz VMOD-TTL Digital IO module.
1073	  This driver provides support for driving the pins in output
1074	  mode only. Input mode is not supported.
1075
1076config GPIO_KEMPLD
1077	tristate "Kontron ETX / COMexpress GPIO"
1078	depends on MFD_KEMPLD
1079	help
1080	  This enables support for the PLD GPIO interface on some Kontron ETX
1081	  and COMexpress (ETXexpress) modules.
1082
1083	  This driver can also be built as a module. If so, the module will be
1084	  called gpio-kempld.
1085
1086config GPIO_LP3943
1087	tristate "TI/National Semiconductor LP3943 GPIO expander"
1088	depends on MFD_LP3943
1089	help
1090	  GPIO driver for LP3943 MFD.
1091	  LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1092	  Open drain outputs are required for this usage.
1093
1094config GPIO_LP873X
1095	tristate "TI LP873X GPO"
1096	depends on MFD_TI_LP873X
1097	help
1098	  This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1099	  on LP873X PMICs.
1100
1101	  This driver can also be built as a module. If so, the module will be
1102	  called gpio-lp873x.
1103
1104config GPIO_LP87565
1105	tristate "TI LP87565 GPIO"
1106	depends on MFD_TI_LP87565
1107	help
1108	  This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1109	  on LP87565 PMICs.
1110
1111	  This driver can also be built as a module. If so, the module will be
1112	  called gpio-lp87565.
1113
1114config GPIO_MADERA
1115	tristate "Cirrus Logic Madera class codecs"
1116	depends on PINCTRL_MADERA
1117	help
1118	  Support for GPIOs on Cirrus Logic Madera class codecs.
1119
1120config GPIO_MAX77620
1121	tristate "GPIO support for PMIC MAX77620 and MAX20024"
1122	depends on MFD_MAX77620
1123	select GPIOLIB_IRQCHIP
1124	help
1125	  GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1126	  MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1127	  driver also provides interrupt support for each of the gpios.
1128	  Say yes here to enable the max77620 to be used as gpio controller.
1129
1130config GPIO_MAX77650
1131	tristate "Maxim MAX77650/77651 GPIO support"
1132	depends on MFD_MAX77650
1133	help
1134	  GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1135	  These chips have a single pin that can be configured as GPIO.
1136
1137config GPIO_MSIC
1138	bool "Intel MSIC mixed signal gpio support"
1139	depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
1140	help
1141	  Enable support for GPIO on intel MSIC controllers found in
1142	  intel MID devices
1143
1144config GPIO_PALMAS
1145	bool "TI PALMAS series PMICs GPIO"
1146	depends on MFD_PALMAS
1147	help
1148	  Select this option to enable GPIO driver for the TI PALMAS
1149	  series chip family.
1150
1151config GPIO_RC5T583
1152	bool "RICOH RC5T583 GPIO"
1153	depends on MFD_RC5T583
1154	help
1155	  Select this option to enable GPIO driver for the Ricoh RC5T583
1156	  chip family.
1157	  This driver provides the support for driving/reading the gpio pins
1158	  of RC5T583 device through standard gpio library.
1159
1160config GPIO_STMPE
1161	bool "STMPE GPIOs"
1162	depends on MFD_STMPE
1163	depends on OF_GPIO
1164	select GPIOLIB_IRQCHIP
1165	help
1166	  This enables support for the GPIOs found on the STMPE I/O
1167	  Expanders.
1168
1169config GPIO_TC3589X
1170	bool "TC3589X GPIOs"
1171	depends on MFD_TC3589X
1172	depends on OF_GPIO
1173	select GPIOLIB_IRQCHIP
1174	help
1175	  This enables support for the GPIOs found on the TC3589X
1176	  I/O Expander.
1177
1178config GPIO_TIMBERDALE
1179	bool "Support for timberdale GPIO IP"
1180	depends on MFD_TIMBERDALE
1181	---help---
1182	Add support for the GPIO IP in the timberdale FPGA.
1183
1184config GPIO_TPS65086
1185	tristate "TI TPS65086 GPO"
1186	depends on MFD_TPS65086
1187	help
1188	  This driver supports the GPO on TI TPS65086x PMICs.
1189
1190config GPIO_TPS65218
1191	tristate "TPS65218 GPIO"
1192	depends on MFD_TPS65218
1193	help
1194	  Select this option to enable GPIO driver for the TPS65218
1195	  chip family.
1196
1197config GPIO_TPS6586X
1198	bool "TPS6586X GPIO"
1199	depends on MFD_TPS6586X
1200	help
1201	  Select this option to enable GPIO driver for the TPS6586X
1202	  chip family.
1203
1204config GPIO_TPS65910
1205	bool "TPS65910 GPIO"
1206	depends on MFD_TPS65910
1207	help
1208	  Select this option to enable GPIO driver for the TPS65910
1209	  chip family.
1210
1211config GPIO_TPS65912
1212	tristate "TI TPS65912 GPIO"
1213	depends on MFD_TPS65912
1214	help
1215	  This driver supports TPS65912 gpio chip
1216
1217config GPIO_TPS68470
1218	bool "TPS68470 GPIO"
1219	depends on MFD_TPS68470
1220	help
1221	  Select this option to enable GPIO driver for the TPS68470
1222	  chip family.
1223	  There are 7 GPIOs and few sensor related GPIOs supported
1224	  by the TPS68470. While the 7 GPIOs can be configured as
1225	  input or output as appropriate, the sensor related GPIOs
1226	  are "output only" GPIOs.
1227
1228	  This driver config is bool, as the GPIO functionality
1229	  of the TPS68470 must be available before dependent
1230	  drivers are loaded.
1231
1232config GPIO_TQMX86
1233	tristate "TQ-Systems QTMX86 GPIO"
1234	depends on MFD_TQMX86 || COMPILE_TEST
1235	select GPIOLIB_IRQCHIP
1236	help
1237	  This driver supports GPIO on the TQMX86 IO controller.
1238
1239config GPIO_TWL4030
1240	tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1241	depends on TWL4030_CORE
1242	help
1243	  Say yes here to access the GPIO signals of various multi-function
1244	  power management chips from Texas Instruments.
1245
1246config GPIO_TWL6040
1247	tristate "TWL6040 GPO"
1248	depends on TWL6040_CORE
1249	help
1250	  Say yes here to access the GPO signals of twl6040
1251	  audio chip from Texas Instruments.
1252
1253config GPIO_UCB1400
1254	tristate "Philips UCB1400 GPIO"
1255	depends on UCB1400_CORE
1256	help
1257	  This enables support for the Philips UCB1400 GPIO pins.
1258	  The UCB1400 is an AC97 audio codec.
1259
1260config GPIO_WHISKEY_COVE
1261	tristate "GPIO support for Whiskey Cove PMIC"
1262	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1263	select GPIOLIB_IRQCHIP
1264	help
1265	  Support for GPIO pins on Whiskey Cove PMIC.
1266
1267	  Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1268	  inside.
1269
1270	  This driver can also be built as a module. If so, the module will be
1271	  called gpio-wcove.
1272
1273config GPIO_WM831X
1274	tristate "WM831x GPIOs"
1275	depends on MFD_WM831X
1276	help
1277	  Say yes here to access the GPIO signals of WM831x power management
1278	  chips from Wolfson Microelectronics.
1279
1280config GPIO_WM8350
1281	tristate "WM8350 GPIOs"
1282	depends on MFD_WM8350
1283	help
1284	  Say yes here to access the GPIO signals of WM8350 power management
1285	  chips from Wolfson Microelectronics.
1286
1287config GPIO_WM8994
1288	tristate "WM8994 GPIOs"
1289	depends on MFD_WM8994
1290	help
1291	  Say yes here to access the GPIO signals of WM8994 audio hub
1292	  CODECs from Wolfson Microelectronics.
1293
1294endmenu
1295
1296menu "PCI GPIO expanders"
1297	depends on PCI
1298
1299config GPIO_AMD8111
1300	tristate "AMD 8111 GPIO driver"
1301	depends on X86 || COMPILE_TEST
1302	help
1303	  The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1304
1305	  Note, that usually system firmware/ACPI handles GPIO pins on their
1306	  own and users might easily break their systems with uncarefull usage
1307	  of this driver!
1308
1309	  If unsure, say N
1310
1311config GPIO_BT8XX
1312	tristate "BT8XX GPIO abuser"
1313	depends on VIDEO_BT848=n
1314	help
1315	  The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1316	  as a cheap PCI GPIO card.
1317
1318	  This chip can be found on Miro, Hauppauge and STB TV-cards.
1319
1320	  The card needs to be physically altered for using it as a
1321	  GPIO card. For more information on how to build a GPIO card
1322	  from a BT8xx TV card, see the documentation file at
1323	  Documentation/driver-api/bt8xxgpio.rst
1324
1325	  If unsure, say N.
1326
1327config GPIO_INTEL_MID
1328	bool "Intel MID GPIO support"
1329	depends on X86_INTEL_MID
1330	select GPIOLIB_IRQCHIP
1331	help
1332	  Say Y here to support Intel MID GPIO.
1333
1334config GPIO_MERRIFIELD
1335	tristate "Intel Merrifield GPIO support"
1336	depends on X86_INTEL_MID
1337	select GPIOLIB_IRQCHIP
1338	help
1339	  Say Y here to support Intel Merrifield GPIO.
1340
1341config GPIO_MLXBF
1342	tristate "Mellanox BlueField SoC GPIO"
1343	depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1344	select GPIO_GENERIC
1345	help
1346	  Say Y here if you want GPIO support on Mellanox BlueField SoC.
1347
1348config GPIO_ML_IOH
1349	tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1350	depends on X86 || COMPILE_TEST
1351	select GENERIC_IRQ_CHIP
1352	help
1353	  ML7213 is companion chip for Intel Atom E6xx series.
1354	  This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1355	  Hub) which is for IVI(In-Vehicle Infotainment) use.
1356	  This driver can access the IOH's GPIO device.
1357
1358config GPIO_PCH
1359	tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1360	depends on X86_32 || MIPS || COMPILE_TEST
1361	select GENERIC_IRQ_CHIP
1362	help
1363	  This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1364	  which is an IOH(Input/Output Hub) for x86 embedded processor.
1365	  This driver can access PCH GPIO device.
1366
1367	  This driver also can be used for LAPIS Semiconductor IOH(Input/
1368	  Output Hub), ML7223 and ML7831.
1369	  ML7223 IOH is for MP(Media Phone) use.
1370	  ML7831 IOH is for general purpose use.
1371	  ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1372	  ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1373
1374config GPIO_PCI_IDIO_16
1375	tristate "ACCES PCI-IDIO-16 GPIO support"
1376	select GPIOLIB_IRQCHIP
1377	help
1378	  Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1379	  generated when any of the inputs change state (low to high or high to
1380	  low). Input filter control is not supported by this driver, and the
1381	  input filters are deactivated by this driver.
1382
1383config GPIO_PCIE_IDIO_24
1384	tristate "ACCES PCIe-IDIO-24 GPIO support"
1385	select GPIOLIB_IRQCHIP
1386	help
1387	  Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1388	  PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1389	  when any of the inputs change state (low to high or high to low).
1390	  Input filter control is not supported by this driver, and the input
1391	  filters are deactivated by this driver.
1392
1393config GPIO_RDC321X
1394	tristate "RDC R-321x GPIO support"
1395	select MFD_CORE
1396	select MFD_RDC321X
1397	help
1398	  Support for the RDC R321x SoC GPIOs over southbridge
1399	  PCI configuration space.
1400
1401config GPIO_SODAVILLE
1402	bool "Intel Sodaville GPIO support"
1403	depends on X86 && OF
1404	select GPIO_GENERIC
1405	select GENERIC_IRQ_CHIP
1406	help
1407	  Say Y here to support Intel Sodaville GPIO.
1408
1409endmenu
1410
1411menu "SPI GPIO expanders"
1412	depends on SPI_MASTER
1413
1414config GPIO_74X164
1415	tristate "74x164 serial-in/parallel-out 8-bits shift register"
1416	depends on OF_GPIO
1417	help
1418	  Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1419	  shift registers. This driver can be used to provide access
1420	  to more gpio outputs.
1421
1422config GPIO_MAX3191X
1423	tristate "Maxim MAX3191x industrial serializer"
1424	select CRC8
1425	help
1426	  GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1427	  MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1428	  chip to make 8 digital 24V inputs available via SPI.  Supports
1429	  CRC checksums to guard against electromagnetic interference,
1430	  as well as undervoltage and overtemperature detection.
1431
1432config GPIO_MAX7301
1433	tristate "Maxim MAX7301 GPIO expander"
1434	select GPIO_MAX730X
1435	help
1436	  GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1437
1438config GPIO_MC33880
1439	tristate "Freescale MC33880 high-side/low-side switch"
1440	help
1441	  SPI driver for Freescale MC33880 high-side/low-side switch.
1442	  This provides GPIO interface supporting inputs and outputs.
1443
1444config GPIO_PISOSR
1445	tristate "Generic parallel-in/serial-out shift register"
1446	help
1447	  GPIO driver for SPI compatible parallel-in/serial-out shift
1448	  registers. These are input only devices.
1449
1450config GPIO_XRA1403
1451	tristate "EXAR XRA1403 16-bit GPIO expander"
1452	select REGMAP_SPI
1453	help
1454	  GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1455
1456config GPIO_MOXTET
1457	tristate "Turris Mox Moxtet bus GPIO expander"
1458	depends on MOXTET
1459	help
1460	  Say yes here if you are building for the Turris Mox router.
1461	  This is the driver needed for configuring the GPIOs via the Moxtet
1462	  bus. For example the Mox module with SFP cage needs this driver
1463	  so that phylink can use corresponding GPIOs.
1464
1465endmenu
1466
1467menu "USB GPIO expanders"
1468	depends on USB
1469
1470config GPIO_VIPERBOARD
1471	tristate "Viperboard GPIO a & b support"
1472	depends on MFD_VIPERBOARD
1473	help
1474	  Say yes here to access the GPIO signals of Nano River
1475	  Technologies Viperboard. There are two GPIO chips on the
1476	  board: gpioa and gpiob.
1477	  See viperboard API specification and Nano
1478	  River Tech's viperboard.h for detailed meaning
1479	  of the module parameters.
1480
1481endmenu
1482
1483config GPIO_MOCKUP
1484	tristate "GPIO Testing Driver"
1485	select IRQ_SIM
1486	help
1487	  This enables GPIO Testing driver, which provides a way to test GPIO
1488	  subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
1489	  must be selected for this test.
1490	  User could use it through the script in
1491	  tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1492	  it.
1493
1494endif
1495