xref: /openbmc/linux/drivers/gpio/Kconfig (revision aa5b395b)
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_ASPEED_SGPIO
124	bool "Aspeed SGPIO support"
125	depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
126	select GPIO_GENERIC
127	select GPIOLIB_IRQCHIP
128	help
129	  Say Y here to support Aspeed AST2500 SGPIO functionality.
130
131config GPIO_ATH79
132	tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
133	default y if ATH79
134	depends on ATH79 || COMPILE_TEST
135	select GPIO_GENERIC
136	select GPIOLIB_IRQCHIP
137	help
138	  Select this option to enable GPIO driver for
139	  Atheros AR71XX/AR724X/AR913X SoC devices.
140
141config GPIO_RASPBERRYPI_EXP
142	tristate "Raspberry Pi 3 GPIO Expander"
143	default RASPBERRYPI_FIRMWARE
144	depends on OF_GPIO
145	# Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
146	# happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
147	depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
148	help
149	  Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
150	  the firmware mailbox to communicate with VideoCore on BCM283x chips.
151
152config GPIO_BCM_KONA
153	bool "Broadcom Kona GPIO"
154	depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
155	help
156	  Turn on GPIO support for Broadcom "Kona" chips.
157
158config GPIO_BCM_XGS_IPROC
159	tristate "BRCM XGS iProc GPIO support"
160	depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST)
161	select GPIO_GENERIC
162	select GPIOLIB_IRQCHIP
163	default ARCH_BCM_IPROC
164	help
165	  Say yes here to enable GPIO support for Broadcom XGS iProc SoCs.
166
167config GPIO_BRCMSTB
168	tristate "BRCMSTB GPIO support"
169	default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
170	depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
171	select GPIO_GENERIC
172	select IRQ_DOMAIN
173	help
174	  Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
175
176config GPIO_CADENCE
177	tristate "Cadence GPIO support"
178	depends on OF_GPIO
179	select GPIO_GENERIC
180	select GPIOLIB_IRQCHIP
181	help
182	  Say yes here to enable support for Cadence GPIO controller.
183
184config GPIO_CLPS711X
185	tristate "CLPS711X GPIO support"
186	depends on ARCH_CLPS711X || COMPILE_TEST
187	select GPIO_GENERIC
188	help
189	  Say yes here to support GPIO on CLPS711X SoCs.
190
191config GPIO_DAVINCI
192	bool "TI Davinci/Keystone GPIO support"
193	default y if ARCH_DAVINCI
194	depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3)
195	help
196	  Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
197
198config GPIO_DWAPB
199	tristate "Synopsys DesignWare APB GPIO driver"
200	select GPIO_GENERIC
201	select GENERIC_IRQ_CHIP
202	help
203	  Say Y or M here to build support for the Synopsys DesignWare APB
204	  GPIO block.
205
206config GPIO_EIC_SPRD
207	tristate "Spreadtrum EIC support"
208	depends on ARCH_SPRD || COMPILE_TEST
209	depends on OF_GPIO
210	select GPIOLIB_IRQCHIP
211	help
212	  Say yes here to support Spreadtrum EIC device.
213
214config GPIO_EM
215	tristate "Emma Mobile GPIO"
216	depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
217	help
218	  Say yes here to support GPIO on Renesas Emma Mobile SoCs.
219
220config GPIO_EP93XX
221	def_bool y
222	depends on ARCH_EP93XX
223	select GPIO_GENERIC
224	select GPIOLIB_IRQCHIP
225
226config GPIO_EXAR
227	tristate "Support for GPIO pins on XR17V352/354/358"
228	depends on SERIAL_8250_EXAR
229	help
230	  Selecting this option will enable handling of GPIO pins present
231	  on Exar XR17V352/354/358 chips.
232
233config GPIO_GE_FPGA
234	bool "GE FPGA based GPIO"
235	depends on GE_FPGA
236	select GPIO_GENERIC
237	help
238	  Support for common GPIO functionality provided on some GE Single Board
239	  Computers.
240
241	  This driver provides basic support (configure as input or output, read
242	  and write pin state) for GPIO implemented in a number of GE single
243	  board computers.
244
245config GPIO_FTGPIO010
246	bool "Faraday FTGPIO010 GPIO"
247	depends on OF_GPIO
248	select GPIO_GENERIC
249	select GPIOLIB_IRQCHIP
250	default (ARCH_GEMINI || ARCH_MOXART)
251	help
252	  Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
253	  Cortina systems Gemini platforms, Moxa ART and others.
254
255config GPIO_GENERIC_PLATFORM
256	tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
257	select GPIO_GENERIC
258	help
259	  Say yes here to support basic platform_device memory-mapped GPIO controllers.
260
261config GPIO_GRGPIO
262	tristate "Aeroflex Gaisler GRGPIO support"
263	depends on OF_GPIO
264	select GPIO_GENERIC
265	select IRQ_DOMAIN
266	help
267	  Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
268	  VHDL IP core library.
269
270config GPIO_HLWD
271	tristate "Nintendo Wii (Hollywood) GPIO"
272	depends on OF_GPIO
273	select GPIO_GENERIC
274	select GPIOLIB_IRQCHIP
275	help
276	  Select this to support the GPIO controller of the Nintendo Wii.
277
278	  If unsure, say N.
279
280config GPIO_ICH
281	tristate "Intel ICH GPIO"
282	depends on PCI && X86
283	select MFD_CORE
284	select LPC_ICH
285	help
286	  Say yes here to support the GPIO functionality of a number of Intel
287	  ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
288	  ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
289	  Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
290
291	  If unsure, say N.
292
293config GPIO_IOP
294	tristate "Intel IOP GPIO"
295	depends on ARCH_IOP32X || COMPILE_TEST
296	select GPIO_GENERIC
297	help
298	  Say yes here to support the GPIO functionality of a number of Intel
299	  IOP32X or IOP33X.
300
301	  If unsure, say N.
302
303config GPIO_IXP4XX
304	bool "Intel IXP4xx GPIO"
305	depends on ARM # For <asm/mach-types.h>
306	depends on ARCH_IXP4XX
307	select GPIO_GENERIC
308	select GPIOLIB_IRQCHIP
309	select IRQ_DOMAIN_HIERARCHY
310	help
311	  Say yes here to support the GPIO functionality of a number of Intel
312	  IXP4xx series of chips.
313
314	  If unsure, say N.
315config GPIO_LOGICVC
316	tristate "Xylon LogiCVC GPIO support"
317	depends on MFD_SYSCON && OF
318	help
319	  Say yes here to support GPIO functionality of the Xylon LogiCVC
320	  programmable logic block.
321
322config GPIO_LOONGSON
323	bool "Loongson-2/3 GPIO support"
324	depends on CPU_LOONGSON2EF || CPU_LOONGSON64
325	help
326	  driver for GPIO functionality on Loongson-2F/3A/3B processors.
327
328config GPIO_LPC18XX
329	tristate "NXP LPC18XX/43XX GPIO support"
330	default y if ARCH_LPC18XX
331	depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
332	select IRQ_DOMAIN_HIERARCHY
333	help
334	  Select this option to enable GPIO driver for
335	  NXP LPC18XX/43XX devices.
336
337config GPIO_LPC32XX
338	tristate "NXP LPC32XX GPIO support"
339	depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST)
340	help
341	  Select this option to enable GPIO driver for
342	  NXP LPC32XX devices.
343
344config GPIO_MB86S7X
345	tristate "GPIO support for Fujitsu MB86S7x Platforms"
346	help
347	  Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
348
349config GPIO_MENZ127
350	tristate "MEN 16Z127 GPIO support"
351	depends on MCB
352	select GPIO_GENERIC
353	help
354	  Say yes here to support the MEN 16Z127 GPIO Controller
355
356config GPIO_MM_LANTIQ
357	bool "Lantiq Memory mapped GPIOs"
358	depends on LANTIQ && SOC_XWAY
359	help
360	  This enables support for memory mapped GPIOs on the External Bus Unit
361	  (EBU) found on Lantiq SoCs. The gpios are output only as they are
362	  created by attaching a 16bit latch to the bus.
363
364config GPIO_MPC5200
365	def_bool y
366	depends on PPC_MPC52xx
367
368config GPIO_MPC8XXX
369	bool "MPC512x/MPC8xxx/QorIQ GPIO support"
370	depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
371		   FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
372		   COMPILE_TEST
373	select GPIO_GENERIC
374	select IRQ_DOMAIN
375	help
376	  Say Y here if you're going to use hardware that connects to the
377	  MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
378
379config GPIO_MT7621
380	bool "Mediatek MT7621 GPIO Support"
381	depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
382	depends on OF_GPIO
383	select GPIO_GENERIC
384	select GPIOLIB_IRQCHIP
385	help
386	  Say yes here to support the Mediatek MT7621 SoC GPIO device
387
388config GPIO_MVEBU
389	def_bool y
390	depends on PLAT_ORION || ARCH_MVEBU
391	depends on OF_GPIO
392	select GENERIC_IRQ_CHIP
393	select REGMAP_MMIO
394
395config GPIO_MXC
396	def_bool y
397	depends on ARCH_MXC
398	select GPIO_GENERIC
399	select GENERIC_IRQ_CHIP
400
401config GPIO_MXS
402	def_bool y
403	depends on ARCH_MXS
404	select GPIO_GENERIC
405	select GENERIC_IRQ_CHIP
406
407config GPIO_OCTEON
408	tristate "Cavium OCTEON GPIO"
409	depends on GPIOLIB && CAVIUM_OCTEON_SOC
410	default y
411	help
412	  Say yes here to support the on-chip GPIO lines on the OCTEON
413	  family of SOCs.
414
415config GPIO_OMAP
416	tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
417	default y if ARCH_OMAP
418	depends on ARM
419	select GENERIC_IRQ_CHIP
420	select GPIOLIB_IRQCHIP
421	help
422	  Say yes here to enable GPIO support for TI OMAP SoCs.
423
424config GPIO_PL061
425	bool "PrimeCell PL061 GPIO support"
426	depends on ARM_AMBA
427	select IRQ_DOMAIN
428	select GPIOLIB_IRQCHIP
429	help
430	  Say yes here to support the PrimeCell PL061 GPIO device
431
432config GPIO_PMIC_EIC_SPRD
433	tristate "Spreadtrum PMIC EIC support"
434	depends on MFD_SC27XX_PMIC || COMPILE_TEST
435	depends on OF_GPIO
436	select GPIOLIB_IRQCHIP
437	help
438	  Say yes here to support Spreadtrum PMIC EIC device.
439
440config GPIO_PXA
441	bool "PXA GPIO support"
442	depends on ARCH_PXA || ARCH_MMP
443	help
444	  Say yes here to support the PXA GPIO device
445
446config GPIO_RCAR
447	tristate "Renesas R-Car GPIO"
448	depends on ARCH_RENESAS || COMPILE_TEST
449	select GPIOLIB_IRQCHIP
450	help
451	  Say yes here to support GPIO on Renesas R-Car SoCs.
452
453config GPIO_RDA
454	bool "RDA Micro GPIO controller support"
455	depends on ARCH_RDA || COMPILE_TEST
456	depends on OF_GPIO
457	select GPIO_GENERIC
458	select GPIOLIB_IRQCHIP
459	help
460	  Say Y here to support RDA Micro GPIO controller.
461
462config GPIO_REG
463	bool
464	help
465	  A 32-bit single register GPIO fixed in/out implementation.  This
466	  can be used to represent any register as a set of GPIO signals.
467
468config GPIO_SAMA5D2_PIOBU
469	tristate "SAMA5D2 PIOBU GPIO support"
470	depends on MFD_SYSCON
471	depends on OF_GPIO
472	select GPIO_SYSCON
473	help
474	  Say yes here to use the PIOBU pins as GPIOs.
475
476	  PIOBU pins on the SAMA5D2 can be used as GPIOs.
477	  The difference from regular GPIOs is that they
478	  maintain their value during backup/self-refresh.
479
480config GPIO_SIFIVE
481	bool "SiFive GPIO support"
482	depends on OF_GPIO && IRQ_DOMAIN_HIERARCHY
483	select GPIO_GENERIC
484	select GPIOLIB_IRQCHIP
485	select REGMAP_MMIO
486	help
487	  Say yes here to support the GPIO device on SiFive SoCs.
488
489config GPIO_SIOX
490	tristate "SIOX GPIO support"
491	depends on SIOX
492	select GPIOLIB_IRQCHIP
493	help
494	  Say yes here to support SIOX I/O devices. These are units connected
495	  via a SIOX bus and have a number of fixed-direction I/O lines.
496
497config GPIO_SNPS_CREG
498	bool "Synopsys GPIO via CREG (Control REGisters) driver"
499	depends on ARC || COMPILE_TEST
500	depends on OF_GPIO
501	help
502	  This driver supports GPIOs via CREG on various Synopsys SoCs.
503	  This is a single-register MMIO GPIO driver for complex cases
504	  where only several fields in register belong to GPIO lines and
505	  each GPIO line owns a field with different length and on/off value.
506
507config GPIO_SPEAR_SPICS
508	bool "ST SPEAr13xx SPI Chip Select as GPIO support"
509	depends on PLAT_SPEAR
510	select GENERIC_IRQ_CHIP
511	help
512	  Say yes here to support ST SPEAr SPI Chip Select as GPIO device
513
514config GPIO_SPRD
515	tristate "Spreadtrum GPIO support"
516	depends on ARCH_SPRD || COMPILE_TEST
517	depends on OF_GPIO
518	select GPIOLIB_IRQCHIP
519	help
520	  Say yes here to support Spreadtrum GPIO device.
521
522config GPIO_STA2X11
523	bool "STA2x11/ConneXt GPIO support"
524	depends on MFD_STA2X11
525	select GENERIC_IRQ_CHIP
526	help
527	  Say yes here to support the STA2x11/ConneXt GPIO device.
528	  The GPIO module has 128 GPIO pins with alternate functions.
529
530config GPIO_STP_XWAY
531	bool "XWAY STP GPIOs"
532	depends on SOC_XWAY || COMPILE_TEST
533	depends on OF_GPIO
534	help
535	  This enables support for the Serial To Parallel (STP) unit found on
536	  XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
537	  that can be up to 24 bit. This peripheral is aimed at driving leds.
538	  Some of the gpios/leds can be auto updated by the soc with dsl and
539	  phy status.
540
541config GPIO_SYSCON
542	tristate "GPIO based on SYSCON"
543	depends on MFD_SYSCON && OF
544	help
545	  Say yes here to support GPIO functionality though SYSCON driver.
546
547config GPIO_TB10X
548	bool
549	select GPIO_GENERIC
550	select GENERIC_IRQ_CHIP
551	select OF_GPIO
552
553config GPIO_TEGRA
554	bool "NVIDIA Tegra GPIO support"
555	default ARCH_TEGRA
556	depends on ARCH_TEGRA || COMPILE_TEST
557	depends on OF_GPIO
558	help
559	  Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
560
561config GPIO_TEGRA186
562	tristate "NVIDIA Tegra186 GPIO support"
563	default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC
564	depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST
565	depends on OF_GPIO
566	select GPIOLIB_IRQCHIP
567	select IRQ_DOMAIN_HIERARCHY
568	help
569	  Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
570
571config GPIO_TS4800
572	tristate "TS-4800 DIO blocks and compatibles"
573	depends on OF_GPIO
574	depends on SOC_IMX51 || COMPILE_TEST
575	select GPIO_GENERIC
576	help
577	  This driver support TS-4800 FPGA GPIO controllers.
578
579config GPIO_THUNDERX
580	tristate "Cavium ThunderX/OCTEON-TX GPIO"
581	depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
582	depends on PCI_MSI
583	select GPIOLIB_IRQCHIP
584	select IRQ_DOMAIN_HIERARCHY
585	select IRQ_FASTEOI_HIERARCHY_HANDLERS
586	help
587	  Say yes here to support the on-chip GPIO lines on the ThunderX
588	  and OCTEON-TX families of SoCs.
589
590config GPIO_UNIPHIER
591	tristate "UniPhier GPIO support"
592	depends on ARCH_UNIPHIER || COMPILE_TEST
593	depends on OF_GPIO
594	select IRQ_DOMAIN_HIERARCHY
595	help
596	  Say yes here to support UniPhier GPIOs.
597
598config GPIO_VF610
599	def_bool y
600	depends on ARCH_MXC && SOC_VF610
601	select GPIOLIB_IRQCHIP
602	help
603	  Say yes here to support Vybrid vf610 GPIOs.
604
605config GPIO_VR41XX
606	tristate "NEC VR4100 series General-purpose I/O Uint support"
607	depends on CPU_VR41XX
608	help
609	  Say yes here to support the NEC VR4100 series General-purpose I/O Uint
610
611config GPIO_VX855
612	tristate "VIA VX855/VX875 GPIO"
613	depends on (X86 || COMPILE_TEST) && PCI
614	select MFD_CORE
615	select MFD_VX855
616	help
617	  Support access to the VX855/VX875 GPIO lines through the gpio library.
618
619	  This driver provides common support for accessing the device,
620	  additional drivers must be enabled in order to use the
621	  functionality of the device.
622
623config GPIO_WCD934X
624	tristate "Qualcomm Technologies Inc WCD9340/WCD9341 gpio controller driver"
625	depends on MFD_WCD934X && OF_GPIO
626	help
627         This driver is to supprot GPIO block found on the Qualcomm Technologies
628	 Inc WCD9340/WCD9341 Audio Codec.
629
630config GPIO_XGENE
631	bool "APM X-Gene GPIO controller support"
632	depends on ARM64 && OF_GPIO
633	help
634	  This driver is to support the GPIO block within the APM X-Gene SoC
635	  platform's generic flash controller. The GPIO pins are muxed with
636	  the generic flash controller's address and data pins. Say yes
637	  here to enable the GFC GPIO functionality.
638
639config GPIO_XGENE_SB
640	tristate "APM X-Gene GPIO standby controller support"
641	depends on ARCH_XGENE && OF_GPIO
642	select GPIO_GENERIC
643	select GPIOLIB_IRQCHIP
644	select IRQ_DOMAIN_HIERARCHY
645	help
646	  This driver supports the GPIO block within the APM X-Gene
647	  Standby Domain. Say yes here to enable the GPIO functionality.
648
649config GPIO_XILINX
650	tristate "Xilinx GPIO support"
651	help
652	  Say yes here to support the Xilinx FPGA GPIO device
653
654config GPIO_XLP
655	tristate "Netlogic XLP GPIO support"
656	depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
657	select GPIOLIB_IRQCHIP
658	help
659	  This driver provides support for GPIO interface on Netlogic XLP MIPS64
660	  SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
661	  XLP9XX and XLP5XX. The same GPIO controller block is also present in
662	  Cavium's ThunderX2 CN99XX SoCs.
663
664	  If unsure, say N.
665
666config GPIO_XTENSA
667	bool "Xtensa GPIO32 support"
668	depends on XTENSA
669	depends on HAVE_XTENSA_GPIO32
670	depends on !SMP
671	help
672	  Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
673	  and EXPSTATE (output) ports
674
675config GPIO_ZEVIO
676	bool "LSI ZEVIO SoC memory mapped GPIOs"
677	depends on ARM && OF_GPIO
678	help
679	  Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
680
681config GPIO_ZYNQ
682	tristate "Xilinx Zynq GPIO support"
683	depends on ARCH_ZYNQ || ARCH_ZYNQMP
684	select GPIOLIB_IRQCHIP
685	help
686	  Say yes here to support Xilinx Zynq GPIO controller.
687
688config GPIO_ZX
689	bool "ZTE ZX GPIO support"
690	depends on ARCH_ZX || COMPILE_TEST
691	select GPIOLIB_IRQCHIP
692	help
693	  Say yes here to support the GPIO device on ZTE ZX SoCs.
694
695config GPIO_LOONGSON1
696	tristate "Loongson1 GPIO support"
697	depends on MACH_LOONGSON32
698	select GPIO_GENERIC
699	help
700	  Say Y or M here to support GPIO on Loongson1 SoCs.
701
702config GPIO_AMD_FCH
703	tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
704	help
705	  This option enables driver for GPIO on AMDs Fusion Controller Hub,
706	  as found on G-series SOCs (eg. GX-412TC)
707
708	  Note: This driver doesn't registers itself automatically, as it
709	  needs to be provided with platform specific configuration.
710	  (See eg. CONFIG_PCENGINES_APU2.)
711endmenu
712
713menu "Port-mapped I/O GPIO drivers"
714	depends on X86 # Unconditional I/O space access
715
716config GPIO_104_DIO_48E
717	tristate "ACCES 104-DIO-48E GPIO support"
718	depends on PC104
719	select ISA_BUS_API
720	select GPIOLIB_IRQCHIP
721	help
722	  Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
723	  104-DIO-24E). The base port addresses for the devices may be
724	  configured via the base module parameter. The interrupt line numbers
725	  for the devices may be configured via the irq module parameter.
726
727config GPIO_104_IDIO_16
728	tristate "ACCES 104-IDIO-16 GPIO support"
729	depends on PC104
730	select ISA_BUS_API
731	select GPIOLIB_IRQCHIP
732	help
733	  Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
734	  104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
735	  base port addresses for the devices may be configured via the base
736	  module parameter. The interrupt line numbers for the devices may be
737	  configured via the irq module parameter.
738
739config GPIO_104_IDI_48
740	tristate "ACCES 104-IDI-48 GPIO support"
741	depends on PC104
742	select ISA_BUS_API
743	select GPIOLIB_IRQCHIP
744	help
745	  Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
746	  104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
747	  the devices may be configured via the base module parameter. The
748	  interrupt line numbers for the devices may be configured via the irq
749	  module parameter.
750
751config GPIO_F7188X
752	tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
753	help
754	  This option enables support for GPIOs found on Fintek Super-I/O
755	  chips F71869, F71869A, F71882FG, F71889F and F81866.
756
757	  To compile this driver as a module, choose M here: the module will
758	  be called f7188x-gpio.
759
760config GPIO_GPIO_MM
761	tristate "Diamond Systems GPIO-MM GPIO support"
762	depends on PC104
763	select ISA_BUS_API
764	help
765	  Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
766
767	  The Diamond Systems GPIO-MM device features 48 lines of digital I/O
768	  via the emulation of dual 82C55A PPI chips. This driver provides GPIO
769	  support for these 48 channels of digital I/O.
770
771	  The base port addresses for the devices may be configured via the base
772	  array module parameter.
773
774config GPIO_IT87
775	tristate "IT87xx GPIO support"
776	help
777	  Say yes here to support GPIO functionality of IT87xx Super I/O chips.
778
779	  This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
780	  supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
781	  well.
782
783	  To compile this driver as a module, choose M here: the module will
784	  be called gpio_it87
785
786config GPIO_SCH
787	tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
788	depends on (X86 || COMPILE_TEST) && PCI
789	select MFD_CORE
790	select LPC_SCH
791	help
792	  Say yes here to support GPIO interface on Intel Poulsbo SCH,
793	  Intel Tunnel Creek processor, Intel Centerton processor or
794	  Intel Quark X1000 SoC.
795
796	  The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
797	  powered by the core power rail and are turned off during sleep
798	  modes (S3 and higher). The remaining four GPIOs are powered by
799	  the Intel SCH suspend power supply. These GPIOs remain
800	  active during S3. The suspend powered GPIOs can be used to wake the
801	  system from the Suspend-to-RAM state.
802
803	  The Intel Tunnel Creek processor has 5 GPIOs powered by the
804	  core power rail and 9 from suspend power supply.
805
806	  The Intel Centerton processor has a total of 30 GPIO pins.
807	  Twenty-one are powered by the core power rail and 9 from the
808	  suspend power supply.
809
810	  The Intel Quark X1000 SoC has 2 GPIOs powered by the core
811	  power well and 6 from the suspend power well.
812
813config GPIO_SCH311X
814	tristate "SMSC SCH311x SuperI/O GPIO"
815	help
816	  Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
817	  SCH3116 "Super I/O" chipsets.
818
819	  To compile this driver as a module, choose M here: the module will
820	  be called gpio-sch311x.
821
822config GPIO_TS5500
823	tristate "TS-5500 DIO blocks and compatibles"
824	depends on TS5500 || COMPILE_TEST
825	help
826	  This driver supports Digital I/O exposed by pin blocks found on some
827	  Technologic Systems platforms. It includes, but is not limited to, 3
828	  blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
829	  LCD port.
830
831config GPIO_WINBOND
832	tristate "Winbond Super I/O GPIO support"
833	select ISA_BUS_API
834	help
835	  This option enables support for GPIOs found on Winbond Super I/O
836	  chips.
837	  Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
838	  supported.
839
840	  You will need to provide a module parameter "gpios", or a
841	  boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
842	  ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
843
844	  To compile this driver as a module, choose M here: the module will
845	  be called gpio-winbond.
846
847config GPIO_WS16C48
848	tristate "WinSystems WS16C48 GPIO support"
849	select ISA_BUS_API
850	select GPIOLIB_IRQCHIP
851	help
852	  Enables GPIO support for the WinSystems WS16C48. The base port
853	  addresses for the devices may be configured via the base module
854	  parameter. The interrupt line numbers for the devices may be
855	  configured via the irq module parameter.
856
857endmenu
858
859menu "I2C GPIO expanders"
860	depends on I2C
861
862config GPIO_ADP5588
863	tristate "ADP5588 I2C GPIO expander"
864	help
865	  This option enables support for 18 GPIOs found
866	  on Analog Devices ADP5588 GPIO Expanders.
867
868config GPIO_ADP5588_IRQ
869	bool "Interrupt controller support for ADP5588"
870	depends on GPIO_ADP5588=y
871	select GPIOLIB_IRQCHIP
872	help
873	  Say yes here to enable the adp5588 to be used as an interrupt
874	  controller. It requires the driver to be built in the kernel.
875
876config GPIO_ADNP
877	tristate "Avionic Design N-bit GPIO expander"
878	depends on OF_GPIO
879	select GPIOLIB_IRQCHIP
880	help
881	  This option enables support for N GPIOs found on Avionic Design
882	  I2C GPIO expanders. The register space will be extended by powers
883	  of two, so the controller will need to accommodate for that. For
884	  example: if a controller provides 48 pins, 6 registers will be
885	  enough to represent all pins, but the driver will assume a
886	  register layout for 64 pins (8 registers).
887
888config GPIO_GW_PLD
889	tristate "Gateworks PLD GPIO Expander"
890	depends on OF_GPIO
891	help
892	  Say yes here to provide access to the Gateworks I2C PLD GPIO
893	  Expander. This is used at least on the Cambria GW2358-4.
894
895config GPIO_MAX7300
896	tristate "Maxim MAX7300 GPIO expander"
897	select GPIO_MAX730X
898	help
899	  GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
900
901config GPIO_MAX732X
902	tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
903	help
904	  Say yes here to support the MAX7319, MAX7320-7327 series of I2C
905	  Port Expanders. Each IO port on these chips has a fixed role of
906	  Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
907	  Input and Output (designed by 'P'). The combinations are listed
908	  below:
909
910	  8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
911	                max7322 (4I4O), max7323 (4P4O)
912
913	  16 bits:      max7324 (8I8O), max7325 (8P8O),
914	                max7326 (4I12O), max7327 (4P12O)
915
916	  Board setup code must specify the model to use, and the start
917	  number for these GPIOs.
918
919config GPIO_MAX732X_IRQ
920	bool "Interrupt controller support for MAX732x"
921	depends on GPIO_MAX732X=y
922	select GPIOLIB_IRQCHIP
923	help
924	  Say yes here to enable the max732x to be used as an interrupt
925	  controller. It requires the driver to be built in the kernel.
926
927config GPIO_MC9S08DZ60
928	bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
929	depends on I2C=y && MACH_MX35_3DS
930	help
931	  Select this to enable the MC9S08DZ60 GPIO driver
932
933config GPIO_PCA953X
934	tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
935	select REGMAP_I2C
936	help
937	  Say yes here to provide access to several register-oriented
938	  SMBus I/O expanders, made mostly by NXP or TI.  Compatible
939	  models include:
940
941	  4 bits:       pca9536, pca9537
942
943	  8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
944	                pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
945
946	  16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
947	                tca6416
948
949	  24 bits:      tca6424
950
951	  40 bits:      pca9505, pca9698
952
953config GPIO_PCA953X_IRQ
954	bool "Interrupt controller support for PCA953x"
955	depends on GPIO_PCA953X=y
956	select GPIOLIB_IRQCHIP
957	help
958	  Say yes here to enable the pca953x to be used as an interrupt
959	  controller. It requires the driver to be built in the kernel.
960
961config GPIO_PCF857X
962	tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
963	select GPIOLIB_IRQCHIP
964	select IRQ_DOMAIN
965	help
966	  Say yes here to provide access to most "quasi-bidirectional" I2C
967	  GPIO expanders used for additional digital outputs or inputs.
968	  Most of these parts are from NXP, though TI is a second source for
969	  some of them.  Compatible models include:
970
971	  8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
972	            pca9670, pca9672, pca9674, pca9674a,
973	            max7328, max7329
974
975	  16 bits:  pcf8575, pcf8575c, pca8575,
976	            pca9671, pca9673, pca9675
977
978	  Your board setup code will need to declare the expanders in
979	  use, and assign numbers to the GPIOs they expose.  Those GPIOs
980	  can then be used from drivers and other kernel code, just like
981	  other GPIOs, but only accessible from task contexts.
982
983	  This driver provides an in-kernel interface to those GPIOs using
984	  platform-neutral GPIO calls.
985
986config GPIO_TPIC2810
987	tristate "TPIC2810 8-Bit I2C GPO expander"
988	help
989	  Say yes here to enable the GPO driver for the TI TPIC2810 chip.
990
991	  To compile this driver as a module, choose M here: the module will
992	  be called gpio-tpic2810.
993
994config GPIO_TS4900
995	tristate "Technologic Systems FPGA I2C GPIO"
996	depends on SOC_IMX6 || COMPILE_TEST
997	select REGMAP_I2C
998	help
999	  Say yes here to enabled the GPIO driver for Technologic's FPGA core.
1000	  Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
1001
1002endmenu
1003
1004menu "MFD GPIO expanders"
1005
1006config GPIO_ADP5520
1007	tristate "GPIO Support for ADP5520 PMIC"
1008	depends on PMIC_ADP5520
1009	help
1010	  This option enables support for on-chip GPIO found
1011	  on Analog Devices ADP5520 PMICs.
1012
1013config GPIO_ALTERA_A10SR
1014	tristate "Altera Arria10 System Resource GPIO"
1015	depends on MFD_ALTERA_A10SR
1016	help
1017	  Driver for Arria10 Development Kit GPIO expansion which
1018	  includes reads of pushbuttons and DIP switches as well
1019	  as writes to LEDs.
1020
1021config GPIO_ARIZONA
1022	tristate "Wolfson Microelectronics Arizona class devices"
1023	depends on MFD_ARIZONA
1024	help
1025	  Support for GPIOs on Wolfson Arizona class devices.
1026
1027config GPIO_BD70528
1028	tristate "ROHM BD70528 GPIO support"
1029	depends on MFD_ROHM_BD70528
1030	help
1031	  Support for GPIOs on ROHM BD70528 PMIC. There are four GPIOs
1032	  available on the ROHM PMIC in total. The GPIOs can also
1033	  generate interrupts.
1034
1035	  This driver can also be built as a module. If so, the module
1036	  will be called gpio-bd70528.
1037
1038config GPIO_BD9571MWV
1039	tristate "ROHM BD9571 GPIO support"
1040	depends on MFD_BD9571MWV
1041	help
1042	  Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
1043	  available on the ROHM PMIC in total, both of which can also
1044	  generate interrupts.
1045
1046	  This driver can also be built as a module. If so, the module
1047	  will be called gpio-bd9571mwv.
1048
1049config GPIO_CRYSTAL_COVE
1050	tristate "GPIO support for Crystal Cove PMIC"
1051	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1052	select GPIOLIB_IRQCHIP
1053	help
1054	  Support for GPIO pins on Crystal Cove PMIC.
1055
1056	  Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
1057	  inside.
1058
1059	  This driver can also be built as a module. If so, the module will be
1060	  called gpio-crystalcove.
1061
1062config GPIO_CS5535
1063	tristate "AMD CS5535/CS5536 GPIO support"
1064	depends on X86 || MIPS || COMPILE_TEST
1065	depends on MFD_CS5535
1066	help
1067	  The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1068	  can be used for quite a number of things.  The CS5535/6 is found on
1069	  AMD Geode and Lemote Yeeloong devices.
1070
1071	  If unsure, say N.
1072
1073config GPIO_DA9052
1074	tristate "Dialog DA9052 GPIO"
1075	depends on PMIC_DA9052
1076	help
1077	  Say yes here to enable the GPIO driver for the DA9052 chip.
1078
1079config GPIO_DA9055
1080	tristate "Dialog Semiconductor DA9055 GPIO"
1081	depends on MFD_DA9055
1082	help
1083	  Say yes here to enable the GPIO driver for the DA9055 chip.
1084
1085	  The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1086	  be controller by this driver.
1087
1088	  If driver is built as a module it will be called gpio-da9055.
1089
1090config GPIO_DLN2
1091	tristate "Diolan DLN2 GPIO support"
1092	depends on MFD_DLN2
1093	select GPIOLIB_IRQCHIP
1094
1095	help
1096	  Select this option to enable GPIO driver for the Diolan DLN2
1097	  board.
1098
1099	  This driver can also be built as a module. If so, the module
1100	  will be called gpio-dln2.
1101
1102config HTC_EGPIO
1103	bool "HTC EGPIO support"
1104	depends on GPIOLIB && ARM
1105	help
1106	  This driver supports the CPLD egpio chip present on
1107	  several HTC phones.  It provides basic support for input
1108	  pins, output pins, and irqs.
1109
1110config GPIO_JANZ_TTL
1111	tristate "Janz VMOD-TTL Digital IO Module"
1112	depends on MFD_JANZ_CMODIO
1113	help
1114	  This enables support for the Janz VMOD-TTL Digital IO module.
1115	  This driver provides support for driving the pins in output
1116	  mode only. Input mode is not supported.
1117
1118config GPIO_KEMPLD
1119	tristate "Kontron ETX / COMexpress GPIO"
1120	depends on MFD_KEMPLD
1121	help
1122	  This enables support for the PLD GPIO interface on some Kontron ETX
1123	  and COMexpress (ETXexpress) modules.
1124
1125	  This driver can also be built as a module. If so, the module will be
1126	  called gpio-kempld.
1127
1128config GPIO_LP3943
1129	tristate "TI/National Semiconductor LP3943 GPIO expander"
1130	depends on MFD_LP3943
1131	help
1132	  GPIO driver for LP3943 MFD.
1133	  LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1134	  Open drain outputs are required for this usage.
1135
1136config GPIO_LP873X
1137	tristate "TI LP873X GPO"
1138	depends on MFD_TI_LP873X
1139	help
1140	  This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1141	  on LP873X PMICs.
1142
1143	  This driver can also be built as a module. If so, the module will be
1144	  called gpio-lp873x.
1145
1146config GPIO_LP87565
1147	tristate "TI LP87565 GPIO"
1148	depends on MFD_TI_LP87565
1149	help
1150	  This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1151	  on LP87565 PMICs.
1152
1153	  This driver can also be built as a module. If so, the module will be
1154	  called gpio-lp87565.
1155
1156config GPIO_MADERA
1157	tristate "Cirrus Logic Madera class codecs"
1158	depends on PINCTRL_MADERA
1159	help
1160	  Support for GPIOs on Cirrus Logic Madera class codecs.
1161
1162config GPIO_MAX77620
1163	tristate "GPIO support for PMIC MAX77620 and MAX20024"
1164	depends on MFD_MAX77620
1165	select GPIOLIB_IRQCHIP
1166	help
1167	  GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1168	  MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1169	  driver also provides interrupt support for each of the gpios.
1170	  Say yes here to enable the max77620 to be used as gpio controller.
1171
1172config GPIO_MAX77650
1173	tristate "Maxim MAX77650/77651 GPIO support"
1174	depends on MFD_MAX77650
1175	help
1176	  GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1177	  These chips have a single pin that can be configured as GPIO.
1178
1179config GPIO_MSIC
1180	bool "Intel MSIC mixed signal gpio support"
1181	depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
1182	help
1183	  Enable support for GPIO on intel MSIC controllers found in
1184	  intel MID devices
1185
1186config GPIO_PALMAS
1187	bool "TI PALMAS series PMICs GPIO"
1188	depends on MFD_PALMAS
1189	help
1190	  Select this option to enable GPIO driver for the TI PALMAS
1191	  series chip family.
1192
1193config GPIO_RC5T583
1194	bool "RICOH RC5T583 GPIO"
1195	depends on MFD_RC5T583
1196	help
1197	  Select this option to enable GPIO driver for the Ricoh RC5T583
1198	  chip family.
1199	  This driver provides the support for driving/reading the gpio pins
1200	  of RC5T583 device through standard gpio library.
1201
1202config GPIO_STMPE
1203	bool "STMPE GPIOs"
1204	depends on MFD_STMPE
1205	depends on OF_GPIO
1206	select GPIOLIB_IRQCHIP
1207	help
1208	  This enables support for the GPIOs found on the STMPE I/O
1209	  Expanders.
1210
1211config GPIO_TC3589X
1212	bool "TC3589X GPIOs"
1213	depends on MFD_TC3589X
1214	depends on OF_GPIO
1215	select GPIOLIB_IRQCHIP
1216	help
1217	  This enables support for the GPIOs found on the TC3589X
1218	  I/O Expander.
1219
1220config GPIO_TIMBERDALE
1221	bool "Support for timberdale GPIO IP"
1222	depends on MFD_TIMBERDALE
1223	---help---
1224	Add support for the GPIO IP in the timberdale FPGA.
1225
1226config GPIO_TPS65086
1227	tristate "TI TPS65086 GPO"
1228	depends on MFD_TPS65086
1229	help
1230	  This driver supports the GPO on TI TPS65086x PMICs.
1231
1232config GPIO_TPS65218
1233	tristate "TPS65218 GPIO"
1234	depends on MFD_TPS65218
1235	help
1236	  Select this option to enable GPIO driver for the TPS65218
1237	  chip family.
1238
1239config GPIO_TPS6586X
1240	bool "TPS6586X GPIO"
1241	depends on MFD_TPS6586X
1242	help
1243	  Select this option to enable GPIO driver for the TPS6586X
1244	  chip family.
1245
1246config GPIO_TPS65910
1247	bool "TPS65910 GPIO"
1248	depends on MFD_TPS65910
1249	help
1250	  Select this option to enable GPIO driver for the TPS65910
1251	  chip family.
1252
1253config GPIO_TPS65912
1254	tristate "TI TPS65912 GPIO"
1255	depends on MFD_TPS65912
1256	help
1257	  This driver supports TPS65912 gpio chip
1258
1259config GPIO_TPS68470
1260	bool "TPS68470 GPIO"
1261	depends on MFD_TPS68470
1262	help
1263	  Select this option to enable GPIO driver for the TPS68470
1264	  chip family.
1265	  There are 7 GPIOs and few sensor related GPIOs supported
1266	  by the TPS68470. While the 7 GPIOs can be configured as
1267	  input or output as appropriate, the sensor related GPIOs
1268	  are "output only" GPIOs.
1269
1270	  This driver config is bool, as the GPIO functionality
1271	  of the TPS68470 must be available before dependent
1272	  drivers are loaded.
1273
1274config GPIO_TQMX86
1275	tristate "TQ-Systems QTMX86 GPIO"
1276	depends on MFD_TQMX86 || COMPILE_TEST
1277	select GPIOLIB_IRQCHIP
1278	help
1279	  This driver supports GPIO on the TQMX86 IO controller.
1280
1281config GPIO_TWL4030
1282	tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1283	depends on TWL4030_CORE
1284	help
1285	  Say yes here to access the GPIO signals of various multi-function
1286	  power management chips from Texas Instruments.
1287
1288config GPIO_TWL6040
1289	tristate "TWL6040 GPO"
1290	depends on TWL6040_CORE
1291	help
1292	  Say yes here to access the GPO signals of twl6040
1293	  audio chip from Texas Instruments.
1294
1295config GPIO_UCB1400
1296	tristate "Philips UCB1400 GPIO"
1297	depends on UCB1400_CORE
1298	help
1299	  This enables support for the Philips UCB1400 GPIO pins.
1300	  The UCB1400 is an AC97 audio codec.
1301
1302config GPIO_WHISKEY_COVE
1303	tristate "GPIO support for Whiskey Cove PMIC"
1304	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1305	select GPIOLIB_IRQCHIP
1306	help
1307	  Support for GPIO pins on Whiskey Cove PMIC.
1308
1309	  Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1310	  inside.
1311
1312	  This driver can also be built as a module. If so, the module will be
1313	  called gpio-wcove.
1314
1315config GPIO_WM831X
1316	tristate "WM831x GPIOs"
1317	depends on MFD_WM831X
1318	help
1319	  Say yes here to access the GPIO signals of WM831x power management
1320	  chips from Wolfson Microelectronics.
1321
1322config GPIO_WM8350
1323	tristate "WM8350 GPIOs"
1324	depends on MFD_WM8350
1325	help
1326	  Say yes here to access the GPIO signals of WM8350 power management
1327	  chips from Wolfson Microelectronics.
1328
1329config GPIO_WM8994
1330	tristate "WM8994 GPIOs"
1331	depends on MFD_WM8994
1332	help
1333	  Say yes here to access the GPIO signals of WM8994 audio hub
1334	  CODECs from Wolfson Microelectronics.
1335
1336endmenu
1337
1338menu "PCI GPIO expanders"
1339	depends on PCI
1340
1341config GPIO_AMD8111
1342	tristate "AMD 8111 GPIO driver"
1343	depends on X86 || COMPILE_TEST
1344	help
1345	  The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1346
1347	  Note, that usually system firmware/ACPI handles GPIO pins on their
1348	  own and users might easily break their systems with uncarefull usage
1349	  of this driver!
1350
1351	  If unsure, say N
1352
1353config GPIO_BT8XX
1354	tristate "BT8XX GPIO abuser"
1355	depends on VIDEO_BT848=n
1356	help
1357	  The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1358	  as a cheap PCI GPIO card.
1359
1360	  This chip can be found on Miro, Hauppauge and STB TV-cards.
1361
1362	  The card needs to be physically altered for using it as a
1363	  GPIO card. For more information on how to build a GPIO card
1364	  from a BT8xx TV card, see the documentation file at
1365	  Documentation/driver-api/gpio/bt8xxgpio.rst
1366
1367	  If unsure, say N.
1368
1369config GPIO_INTEL_MID
1370	bool "Intel MID GPIO support"
1371	depends on X86_INTEL_MID
1372	select GPIOLIB_IRQCHIP
1373	help
1374	  Say Y here to support Intel MID GPIO.
1375
1376config GPIO_MERRIFIELD
1377	tristate "Intel Merrifield GPIO support"
1378	depends on X86_INTEL_MID
1379	select GPIOLIB_IRQCHIP
1380	help
1381	  Say Y here to support Intel Merrifield GPIO.
1382
1383config GPIO_MLXBF
1384	tristate "Mellanox BlueField SoC GPIO"
1385	depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1386	select GPIO_GENERIC
1387	help
1388	  Say Y here if you want GPIO support on Mellanox BlueField SoC.
1389
1390config GPIO_ML_IOH
1391	tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1392	depends on X86 || COMPILE_TEST
1393	select GENERIC_IRQ_CHIP
1394	help
1395	  ML7213 is companion chip for Intel Atom E6xx series.
1396	  This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1397	  Hub) which is for IVI(In-Vehicle Infotainment) use.
1398	  This driver can access the IOH's GPIO device.
1399
1400config GPIO_PCH
1401	tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1402	depends on X86_32 || MIPS || COMPILE_TEST
1403	select GENERIC_IRQ_CHIP
1404	help
1405	  This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1406	  which is an IOH(Input/Output Hub) for x86 embedded processor.
1407	  This driver can access PCH GPIO device.
1408
1409	  This driver also can be used for LAPIS Semiconductor IOH(Input/
1410	  Output Hub), ML7223 and ML7831.
1411	  ML7223 IOH is for MP(Media Phone) use.
1412	  ML7831 IOH is for general purpose use.
1413	  ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1414	  ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1415
1416config GPIO_PCI_IDIO_16
1417	tristate "ACCES PCI-IDIO-16 GPIO support"
1418	select GPIOLIB_IRQCHIP
1419	help
1420	  Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1421	  generated when any of the inputs change state (low to high or high to
1422	  low). Input filter control is not supported by this driver, and the
1423	  input filters are deactivated by this driver.
1424
1425config GPIO_PCIE_IDIO_24
1426	tristate "ACCES PCIe-IDIO-24 GPIO support"
1427	select GPIOLIB_IRQCHIP
1428	help
1429	  Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1430	  PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1431	  when any of the inputs change state (low to high or high to low).
1432	  Input filter control is not supported by this driver, and the input
1433	  filters are deactivated by this driver.
1434
1435config GPIO_RDC321X
1436	tristate "RDC R-321x GPIO support"
1437	select MFD_CORE
1438	select MFD_RDC321X
1439	help
1440	  Support for the RDC R321x SoC GPIOs over southbridge
1441	  PCI configuration space.
1442
1443config GPIO_SODAVILLE
1444	bool "Intel Sodaville GPIO support"
1445	depends on X86 && OF
1446	select GPIO_GENERIC
1447	select GENERIC_IRQ_CHIP
1448	help
1449	  Say Y here to support Intel Sodaville GPIO.
1450
1451endmenu
1452
1453menu "SPI GPIO expanders"
1454	depends on SPI_MASTER
1455
1456config GPIO_74X164
1457	tristate "74x164 serial-in/parallel-out 8-bits shift register"
1458	depends on OF_GPIO
1459	help
1460	  Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1461	  shift registers. This driver can be used to provide access
1462	  to more gpio outputs.
1463
1464config GPIO_MAX3191X
1465	tristate "Maxim MAX3191x industrial serializer"
1466	select CRC8
1467	help
1468	  GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1469	  MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1470	  chip to make 8 digital 24V inputs available via SPI.  Supports
1471	  CRC checksums to guard against electromagnetic interference,
1472	  as well as undervoltage and overtemperature detection.
1473
1474config GPIO_MAX7301
1475	tristate "Maxim MAX7301 GPIO expander"
1476	select GPIO_MAX730X
1477	help
1478	  GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1479
1480config GPIO_MC33880
1481	tristate "Freescale MC33880 high-side/low-side switch"
1482	help
1483	  SPI driver for Freescale MC33880 high-side/low-side switch.
1484	  This provides GPIO interface supporting inputs and outputs.
1485
1486config GPIO_PISOSR
1487	tristate "Generic parallel-in/serial-out shift register"
1488	help
1489	  GPIO driver for SPI compatible parallel-in/serial-out shift
1490	  registers. These are input only devices.
1491
1492config GPIO_XRA1403
1493	tristate "EXAR XRA1403 16-bit GPIO expander"
1494	select REGMAP_SPI
1495	help
1496	  GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1497
1498config GPIO_MOXTET
1499	tristate "Turris Mox Moxtet bus GPIO expander"
1500	depends on MOXTET
1501	help
1502	  Say yes here if you are building for the Turris Mox router.
1503	  This is the driver needed for configuring the GPIOs via the Moxtet
1504	  bus. For example the Mox module with SFP cage needs this driver
1505	  so that phylink can use corresponding GPIOs.
1506
1507endmenu
1508
1509menu "USB GPIO expanders"
1510	depends on USB
1511
1512config GPIO_VIPERBOARD
1513	tristate "Viperboard GPIO a & b support"
1514	depends on MFD_VIPERBOARD
1515	help
1516	  Say yes here to access the GPIO signals of Nano River
1517	  Technologies Viperboard. There are two GPIO chips on the
1518	  board: gpioa and gpiob.
1519	  See viperboard API specification and Nano
1520	  River Tech's viperboard.h for detailed meaning
1521	  of the module parameters.
1522
1523endmenu
1524
1525config GPIO_MOCKUP
1526	tristate "GPIO Testing Driver"
1527	select IRQ_SIM
1528	help
1529	  This enables GPIO Testing driver, which provides a way to test GPIO
1530	  subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
1531	  must be selected for this test.
1532	  User could use it through the script in
1533	  tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1534	  it.
1535
1536endif
1537