1# SPDX-License-Identifier: GPL-2.0-only
2#
3# GPIO infrastructure and drivers
4#
5
6config ARCH_HAVE_CUSTOM_GPIO_H
7	bool
8	help
9	  Selecting this config option from the architecture Kconfig allows
10	  the architecture to provide a custom asm/gpio.h implementation
11	  overriding the default implementations.  New uses of this are
12	  strongly discouraged.
13
14menuconfig GPIOLIB
15	bool "GPIO Support"
16	help
17	  This enables GPIO support through the generic GPIO library.
18	  You only need to enable this if you also want to enable
19	  one or more of the GPIO drivers below.
20
21	  If unsure, say N.
22
23if GPIOLIB
24
25config GPIOLIB_FASTPATH_LIMIT
26	int "Maximum number of GPIOs for fast path"
27	range 32 512
28	default 512
29	help
30	  This adjusts the point at which certain APIs will switch from
31	  using a stack allocated buffer to a dynamically allocated buffer.
32
33	  You shouldn't need to change this unless you really need to
34	  optimize either stack space or performance. Change this carefully
35	  since setting an incorrect value could cause stack corruption.
36
37config OF_GPIO
38	def_bool y
39	depends on OF
40	depends on HAS_IOMEM
41
42config GPIO_ACPI
43	def_bool y
44	depends on ACPI
45
46config GPIOLIB_IRQCHIP
47	select IRQ_DOMAIN
48	bool
49
50config DEBUG_GPIO
51	bool "Debug GPIO calls"
52	depends on DEBUG_KERNEL
53	help
54	  Say Y here to add some extra checks and diagnostics to GPIO calls.
55	  These checks help ensure that GPIOs have been properly initialized
56	  before they are used, and that sleeping calls are not made from
57	  non-sleeping contexts.  They can make bitbanged serial protocols
58	  slower.  The diagnostics help catch the type of setup errors
59	  that are most common when setting up new platforms or boards.
60
61config GPIO_SYSFS
62	bool "/sys/class/gpio/... (sysfs interface)" if EXPERT
63	depends on SYSFS
64	select GPIO_CDEV # We need to encourage the new ABI
65	help
66	  Say Y here to add the legacy sysfs interface for GPIOs.
67
68	  This ABI is deprecated. If you want to use GPIO from userspace,
69	  use the character device /dev/gpiochipN with the appropriate
70	  ioctl() operations instead.
71
72config GPIO_CDEV
73	bool
74	prompt "Character device (/dev/gpiochipN) support" if EXPERT
75	default y
76	help
77	  Say Y here to add the character device /dev/gpiochipN interface
78	  for GPIOs. The character device allows userspace to control GPIOs
79	  using ioctl() operations.
80
81	  Only say N if you are sure that the GPIO character device is not
82	  required.
83
84	  If unsure, say Y.
85
86config GPIO_CDEV_V1
87	bool "Support GPIO ABI Version 1"
88	default y
89	depends on GPIO_CDEV
90	help
91	  Say Y here to support version 1 of the GPIO CDEV ABI.
92
93	  This ABI version is deprecated.
94	  Please use the latest ABI for new developments.
95
96	  If unsure, say Y.
97
98config GPIO_GENERIC
99	depends on HAS_IOMEM # Only for IOMEM drivers
100	tristate
101
102config GPIO_REGMAP
103	depends on REGMAP
104	tristate
105
106# put drivers in the right section, in alphabetical order
107
108# This symbol is selected by both I2C and SPI expanders
109config GPIO_MAX730X
110	tristate
111
112menu "Memory mapped GPIO drivers"
113	depends on HAS_IOMEM
114
115config GPIO_74XX_MMIO
116	tristate "GPIO driver for 74xx-ICs with MMIO access"
117	depends on OF_GPIO
118	select GPIO_GENERIC
119	help
120	  Say yes here to support GPIO functionality for 74xx-compatible ICs
121	  with MMIO access. Compatible models include:
122	    1 bit:	741G125 (Input), 741G74 (Output)
123	    2 bits:	742G125 (Input), 7474 (Output)
124	    4 bits:	74125 (Input), 74175 (Output)
125	    6 bits:	74365 (Input), 74174 (Output)
126	    8 bits:	74244 (Input), 74273 (Output)
127	    16 bits:	741624 (Input), 7416374 (Output)
128
129config GPIO_ALTERA
130	tristate "Altera GPIO"
131	depends on OF_GPIO
132	select GPIOLIB_IRQCHIP
133	help
134	  Say Y or M here to build support for the Altera PIO device.
135
136	  If driver is built as a module it will be called gpio-altera.
137
138config GPIO_AMDPT
139	tristate "AMD Promontory GPIO support"
140	depends on ACPI
141	select GPIO_GENERIC
142	help
143	  Driver for GPIO functionality on Promontory IOHub.
144	  Requires ACPI ASL code to enumerate as a platform device.
145
146config GPIO_ASPEED
147	tristate "Aspeed GPIO support"
148	depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
149	select GPIOLIB_IRQCHIP
150	help
151	  Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
152
153config GPIO_ASPEED_SGPIO
154	bool "Aspeed SGPIO support"
155	depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
156	select GPIO_GENERIC
157	select GPIOLIB_IRQCHIP
158	help
159	  Say Y here to support Aspeed AST2500 SGPIO functionality.
160
161config GPIO_ATH79
162	tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
163	default y if ATH79
164	depends on ATH79 || COMPILE_TEST
165	select GPIO_GENERIC
166	select GPIOLIB_IRQCHIP
167	help
168	  Select this option to enable GPIO driver for
169	  Atheros AR71XX/AR724X/AR913X SoC devices.
170
171config GPIO_RASPBERRYPI_EXP
172	tristate "Raspberry Pi 3 GPIO Expander"
173	default RASPBERRYPI_FIRMWARE
174	depends on OF_GPIO
175	# Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
176	# happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
177	depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
178	help
179	  Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
180	  the firmware mailbox to communicate with VideoCore on BCM283x chips.
181
182config GPIO_BCM_KONA
183	bool "Broadcom Kona GPIO"
184	depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
185	help
186	  Turn on GPIO support for Broadcom "Kona" chips.
187
188config GPIO_BCM_XGS_IPROC
189	tristate "BRCM XGS iProc GPIO support"
190	depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST)
191	select GPIO_GENERIC
192	select GPIOLIB_IRQCHIP
193	default ARCH_BCM_IPROC
194	help
195	  Say yes here to enable GPIO support for Broadcom XGS iProc SoCs.
196
197config GPIO_BRCMSTB
198	tristate "BRCMSTB GPIO support"
199	default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
200	depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
201	select GPIO_GENERIC
202	select IRQ_DOMAIN
203	help
204	  Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
205
206config GPIO_CADENCE
207	tristate "Cadence GPIO support"
208	depends on OF_GPIO
209	select GPIO_GENERIC
210	select GPIOLIB_IRQCHIP
211	help
212	  Say yes here to enable support for Cadence GPIO controller.
213
214config GPIO_CLPS711X
215	tristate "CLPS711X GPIO support"
216	depends on ARCH_CLPS711X || COMPILE_TEST
217	select GPIO_GENERIC
218	help
219	  Say yes here to support GPIO on CLPS711X SoCs.
220
221config GPIO_DAVINCI
222	bool "TI Davinci/Keystone GPIO support"
223	default y if ARCH_DAVINCI
224	depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3)
225	help
226	  Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
227
228config GPIO_DWAPB
229	tristate "Synopsys DesignWare APB GPIO driver"
230	select GPIO_GENERIC
231	select GPIOLIB_IRQCHIP
232	help
233	  Say Y or M here to build support for the Synopsys DesignWare APB
234	  GPIO block.
235
236config GPIO_EIC_SPRD
237	tristate "Spreadtrum EIC support"
238	depends on ARCH_SPRD || COMPILE_TEST
239	depends on OF_GPIO
240	select GPIOLIB_IRQCHIP
241	help
242	  Say yes here to support Spreadtrum EIC device.
243
244config GPIO_EM
245	tristate "Emma Mobile GPIO"
246	depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
247	help
248	  Say yes here to support GPIO on Renesas Emma Mobile SoCs.
249
250config GPIO_EN7523
251	tristate "Airoha GPIO support"
252	depends on ARCH_AIROHA
253	default ARCH_AIROHA
254	select GPIO_GENERIC
255	select GPIOLIB_IRQCHIP
256	help
257	  Say Y or M here to support the GPIO controller block on the
258	  Airoha EN7523 SoC. It supports two banks of 32 GPIOs.
259
260config GPIO_EP93XX
261	def_bool y
262	depends on ARCH_EP93XX
263	select GPIO_GENERIC
264	select GPIOLIB_IRQCHIP
265
266config GPIO_EXAR
267	tristate "Support for GPIO pins on XR17V352/354/358"
268	depends on SERIAL_8250_EXAR
269	select REGMAP_MMIO
270	help
271	  Selecting this option will enable handling of GPIO pins present
272	  on Exar XR17V352/354/358 chips.
273
274config GPIO_GE_FPGA
275	bool "GE FPGA based GPIO"
276	depends on GE_FPGA
277	select GPIO_GENERIC
278	help
279	  Support for common GPIO functionality provided on some GE Single Board
280	  Computers.
281
282	  This driver provides basic support (configure as input or output, read
283	  and write pin state) for GPIO implemented in a number of GE single
284	  board computers.
285
286config GPIO_FTGPIO010
287	bool "Faraday FTGPIO010 GPIO"
288	depends on OF_GPIO
289	select GPIO_GENERIC
290	select GPIOLIB_IRQCHIP
291	default (ARCH_GEMINI || ARCH_MOXART)
292	help
293	  Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
294	  Cortina systems Gemini platforms, Moxa ART and others.
295
296config GPIO_GENERIC_PLATFORM
297	tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
298	select GPIO_GENERIC
299	help
300	  Say yes here to support basic platform_device memory-mapped GPIO controllers.
301
302config GPIO_GRGPIO
303	tristate "Aeroflex Gaisler GRGPIO support"
304	depends on OF_GPIO
305	select GPIO_GENERIC
306	select IRQ_DOMAIN
307	help
308	  Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
309	  VHDL IP core library.
310
311config GPIO_HISI
312	tristate "HiSilicon GPIO controller driver"
313	depends on (ARM64 && ACPI) || COMPILE_TEST
314	select GPIO_GENERIC
315	select GPIOLIB_IRQCHIP
316	help
317	  Say Y or M here to build support for the HiSilicon GPIO controller
318	  driver GPIO block.
319	  This GPIO controller supports double-edge interrupt and multi-core
320	  concurrent access.
321
322config GPIO_HLWD
323	tristate "Nintendo Wii (Hollywood) GPIO"
324	depends on OF_GPIO
325	select GPIO_GENERIC
326	select GPIOLIB_IRQCHIP
327	help
328	  Select this to support the GPIO controller of the Nintendo Wii.
329
330	  If unsure, say N.
331
332config GPIO_ICH
333	tristate "Intel ICH GPIO"
334	depends on X86
335	depends on LPC_ICH
336	help
337	  Say yes here to support the GPIO functionality of a number of Intel
338	  ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
339	  ICH9, ICH10, Series 5/3400 (e.g. Ibex Peak), Series 6/C200 (e.g.
340	  Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
341
342	  If unsure, say N.
343
344config GPIO_IOP
345	tristate "Intel IOP GPIO"
346	depends on ARCH_IOP32X || COMPILE_TEST
347	select GPIO_GENERIC
348	help
349	  Say yes here to support the GPIO functionality of a number of Intel
350	  IOP32X or IOP33X series of chips.
351
352	  If unsure, say N.
353
354config GPIO_IXP4XX
355	bool "Intel IXP4xx GPIO"
356	depends on ARCH_IXP4XX
357	depends on OF
358	select GPIO_GENERIC
359	select GPIOLIB_IRQCHIP
360	select IRQ_DOMAIN_HIERARCHY
361	help
362	  Say yes here to support the GPIO functionality of a number of Intel
363	  IXP4xx series of chips.
364
365	  If unsure, say N.
366
367config GPIO_LOGICVC
368	tristate "Xylon LogiCVC GPIO support"
369	depends on MFD_SYSCON && OF
370	help
371	  Say yes here to support GPIO functionality of the Xylon LogiCVC
372	  programmable logic block.
373
374config GPIO_LOONGSON
375	bool "Loongson-2/3 GPIO support"
376	depends on CPU_LOONGSON2EF || CPU_LOONGSON64
377	help
378	  Driver for GPIO functionality on Loongson-2F/3A/3B processors.
379
380config GPIO_LPC18XX
381	tristate "NXP LPC18XX/43XX GPIO support"
382	default y if ARCH_LPC18XX
383	depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
384	select IRQ_DOMAIN_HIERARCHY
385	help
386	  Select this option to enable GPIO driver for
387	  NXP LPC18XX/43XX devices.
388
389config GPIO_LPC32XX
390	tristate "NXP LPC32XX GPIO support"
391	depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST)
392	help
393	  Select this option to enable GPIO driver for
394	  NXP LPC32XX devices.
395
396config GPIO_MB86S7X
397	tristate "GPIO support for Fujitsu MB86S7x Platforms"
398	help
399	  Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
400
401config GPIO_MENZ127
402	tristate "MEN 16Z127 GPIO support"
403	depends on MCB
404	select GPIO_GENERIC
405	help
406	  Say yes here to support the MEN 16Z127 GPIO Controller.
407
408config GPIO_MM_LANTIQ
409	bool "Lantiq Memory mapped GPIOs"
410	depends on LANTIQ && SOC_XWAY
411	help
412	  This enables support for memory mapped GPIOs on the External Bus Unit
413	  (EBU) found on Lantiq SoCs. The GPIOs are output only as they are
414	  created by attaching a 16-bit latch to the bus.
415
416config GPIO_MPC5200
417	def_bool y
418	depends on PPC_MPC52xx
419
420config GPIO_MPC8XXX
421	bool "MPC512x/MPC8xxx/QorIQ GPIO support"
422	depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
423		   FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
424		   COMPILE_TEST
425	select GPIO_GENERIC
426	select IRQ_DOMAIN
427	help
428	  Say Y here if you're going to use hardware that connects to the
429	  MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
430
431config GPIO_MT7621
432	bool "Mediatek MT7621 GPIO Support"
433	depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
434	depends on OF_GPIO
435	select GPIO_GENERIC
436	select GPIOLIB_IRQCHIP
437	help
438	  Say yes here to support the Mediatek MT7621 SoC GPIO device.
439
440config GPIO_MVEBU
441	def_bool y
442	depends on PLAT_ORION || ARCH_MVEBU
443	depends on OF_GPIO
444	select GENERIC_IRQ_CHIP
445	select REGMAP_MMIO
446
447config GPIO_MXC
448	tristate "i.MX GPIO support"
449	depends on ARCH_MXC || COMPILE_TEST
450	select GPIO_GENERIC
451	select GENERIC_IRQ_CHIP
452
453config GPIO_MXS
454	bool "Freescale MXS GPIO support" if COMPILE_TEST
455	depends on ARCH_MXS || COMPILE_TEST
456	default y if ARCH_MXS
457	select GPIO_GENERIC
458	select GENERIC_IRQ_CHIP
459
460config GPIO_OCTEON
461	tristate "Cavium OCTEON GPIO"
462	depends on CAVIUM_OCTEON_SOC
463	default y
464	help
465	  Say yes here to support the on-chip GPIO lines on the OCTEON
466	  family of SOCs.
467
468config GPIO_OMAP
469	tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
470	default y if ARCH_OMAP
471	depends on ARM
472	select GENERIC_IRQ_CHIP
473	select GPIOLIB_IRQCHIP
474	help
475	  Say yes here to enable GPIO support for TI OMAP SoCs.
476
477config GPIO_PL061
478	tristate "PrimeCell PL061 GPIO support"
479	depends on ARM_AMBA
480	select IRQ_DOMAIN
481	select GPIOLIB_IRQCHIP
482	help
483	  Say yes here to support the PrimeCell PL061 GPIO device.
484
485config GPIO_PMIC_EIC_SPRD
486	tristate "Spreadtrum PMIC EIC support"
487	depends on MFD_SC27XX_PMIC || COMPILE_TEST
488	depends on OF_GPIO
489	select GPIOLIB_IRQCHIP
490	help
491	  Say yes here to support Spreadtrum PMIC EIC device.
492
493config GPIO_PXA
494	bool "PXA GPIO support"
495	depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST
496	help
497	  Say yes here to support the PXA GPIO device.
498
499config GPIO_RCAR
500	tristate "Renesas R-Car and RZ/G GPIO support"
501	depends on ARCH_RENESAS || COMPILE_TEST
502	select GPIOLIB_IRQCHIP
503	help
504	  Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs.
505
506config GPIO_RDA
507	bool "RDA Micro GPIO controller support"
508	depends on ARCH_RDA || COMPILE_TEST
509	depends on OF_GPIO
510	select GPIO_GENERIC
511	select GPIOLIB_IRQCHIP
512	help
513	  Say Y here to support RDA Micro GPIO controller.
514
515config GPIO_REALTEK_OTTO
516	tristate "Realtek Otto GPIO support"
517	depends on MACH_REALTEK_RTL
518	default MACH_REALTEK_RTL
519	select GPIO_GENERIC
520	select GPIOLIB_IRQCHIP
521	help
522	  The GPIO controller on the Otto MIPS platform supports up to two
523	  banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs
524	  are grouped in four 8-bit wide ports.
525
526	  When built as a module, the module will be called realtek_otto_gpio.
527
528config GPIO_REG
529	bool
530	help
531	  A 32-bit single register GPIO fixed in/out implementation.  This
532	  can be used to represent any register as a set of GPIO signals.
533
534config GPIO_ROCKCHIP
535	tristate "Rockchip GPIO support"
536	depends on ARCH_ROCKCHIP || COMPILE_TEST
537	select GENERIC_IRQ_CHIP
538	select GPIOLIB_IRQCHIP
539	default ARCH_ROCKCHIP
540	help
541	  Say yes here to support GPIO on Rockchip SoCs.
542
543config GPIO_SAMA5D2_PIOBU
544	tristate "SAMA5D2 PIOBU GPIO support"
545	depends on MFD_SYSCON
546	depends on OF_GPIO
547	select GPIO_SYSCON
548	help
549	  Say yes here to use the PIOBU pins as GPIOs.
550
551	  PIOBU pins on the SAMA5D2 can be used as GPIOs.
552	  The difference from regular GPIOs is that they
553	  maintain their value during backup/self-refresh.
554
555config GPIO_SIFIVE
556	bool "SiFive GPIO support"
557	depends on OF_GPIO
558	select IRQ_DOMAIN_HIERARCHY
559	select GPIO_GENERIC
560	select GPIOLIB_IRQCHIP
561	select REGMAP_MMIO
562	help
563	  Say yes here to support the GPIO device on SiFive SoCs.
564
565config GPIO_SIOX
566	tristate "SIOX GPIO support"
567	depends on SIOX
568	select GPIOLIB_IRQCHIP
569	help
570	  Say yes here to support SIOX I/O devices. These are units connected
571	  via a SIOX bus and have a number of fixed-direction I/O lines.
572
573config GPIO_SNPS_CREG
574	bool "Synopsys GPIO via CREG (Control REGisters) driver"
575	depends on ARC || COMPILE_TEST
576	depends on OF_GPIO
577	help
578	  This driver supports GPIOs via CREG on various Synopsys SoCs.
579	  This is a single-register MMIO GPIO driver for complex cases
580	  where only several fields in register belong to GPIO lines and
581	  each GPIO line owns a field with different length and on/off value.
582
583config GPIO_SPEAR_SPICS
584	bool "ST SPEAr13xx SPI Chip Select as GPIO support"
585	depends on PLAT_SPEAR
586	select GENERIC_IRQ_CHIP
587	help
588	  Say yes here to support ST SPEAr SPI Chip Select as GPIO device.
589
590config GPIO_SPRD
591	tristate "Spreadtrum GPIO support"
592	depends on ARCH_SPRD || COMPILE_TEST
593	depends on OF_GPIO
594	select GPIOLIB_IRQCHIP
595	help
596	  Say yes here to support Spreadtrum GPIO device.
597
598config GPIO_STA2X11
599	bool "STA2x11/ConneXt GPIO support"
600	depends on MFD_STA2X11
601	select GENERIC_IRQ_CHIP
602	help
603	  Say yes here to support the STA2x11/ConneXt GPIO device.
604	  The GPIO module has 128 GPIO pins with alternate functions.
605
606config GPIO_STP_XWAY
607	bool "XWAY STP GPIOs"
608	depends on SOC_XWAY || COMPILE_TEST
609	depends on OF_GPIO
610	help
611	  This enables support for the Serial To Parallel (STP) unit found on
612	  XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
613	  that can be up to 24 bits. This peripheral is aimed at driving LEDs.
614	  Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and
615	  phy status.
616
617config GPIO_SYSCON
618	tristate "GPIO based on SYSCON"
619	depends on MFD_SYSCON && OF
620	help
621	  Say yes here to support GPIO functionality though SYSCON driver.
622
623config GPIO_TB10X
624	bool
625	select GPIO_GENERIC
626	select GENERIC_IRQ_CHIP
627	select OF_GPIO
628
629config GPIO_TEGRA
630	tristate "NVIDIA Tegra GPIO support"
631	default ARCH_TEGRA
632	depends on ARCH_TEGRA || COMPILE_TEST
633	depends on OF_GPIO
634	select GPIOLIB_IRQCHIP
635	select IRQ_DOMAIN_HIERARCHY
636	help
637	  Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
638
639config GPIO_TEGRA186
640	tristate "NVIDIA Tegra186 GPIO support"
641	default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC
642	depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST
643	depends on OF_GPIO
644	select GPIOLIB_IRQCHIP
645	select IRQ_DOMAIN_HIERARCHY
646	help
647	  Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
648
649config GPIO_TS4800
650	tristate "TS-4800 DIO blocks and compatibles"
651	depends on OF_GPIO
652	depends on SOC_IMX51 || COMPILE_TEST
653	select GPIO_GENERIC
654	help
655	  This driver support TS-4800 FPGA GPIO controllers.
656
657config GPIO_THUNDERX
658	tristate "Cavium ThunderX/OCTEON-TX GPIO"
659	depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
660	depends on PCI_MSI
661	select GPIOLIB_IRQCHIP
662	select IRQ_DOMAIN_HIERARCHY
663	select IRQ_FASTEOI_HIERARCHY_HANDLERS
664	help
665	  Say yes here to support the on-chip GPIO lines on the ThunderX
666	  and OCTEON-TX families of SoCs.
667
668config GPIO_UNIPHIER
669	tristate "UniPhier GPIO support"
670	depends on ARCH_UNIPHIER || COMPILE_TEST
671	depends on OF_GPIO
672	select IRQ_DOMAIN_HIERARCHY
673	help
674	  Say yes here to support UniPhier GPIOs.
675
676config GPIO_VF610
677	def_bool y
678	depends on ARCH_MXC
679	select GPIOLIB_IRQCHIP
680	help
681	  Say yes here to support i.MX or Vybrid vf610 GPIOs.
682
683config GPIO_VISCONTI
684	tristate "Toshiba Visconti GPIO support"
685	depends on ARCH_VISCONTI || COMPILE_TEST
686	depends on OF_GPIO
687	select GPIOLIB_IRQCHIP
688	select GPIO_GENERIC
689	select IRQ_DOMAIN_HIERARCHY
690	help
691	  Say yes here to support GPIO on Tohisba Visconti.
692
693config GPIO_VR41XX
694	tristate "NEC VR4100 series General-purpose I/O Unit support"
695	depends on CPU_VR41XX
696	help
697	  Say yes here to support the NEC VR4100 series General-purpose I/O Unit.
698
699config GPIO_VX855
700	tristate "VIA VX855/VX875 GPIO"
701	depends on (X86 || COMPILE_TEST) && PCI
702	select MFD_CORE
703	select MFD_VX855
704	help
705	  Support access to the VX855/VX875 GPIO lines through the GPIO library.
706
707	  This driver provides common support for accessing the device.
708	  Additional drivers must be enabled in order to use the
709	  functionality of the device.
710
711config GPIO_WCD934X
712	tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver"
713	depends on MFD_WCD934X && OF_GPIO
714	help
715         This driver is to support GPIO block found on the Qualcomm Technologies
716	 Inc WCD9340/WCD9341 Audio Codec.
717
718config GPIO_XGENE
719	bool "APM X-Gene GPIO controller support"
720	depends on ARM64 && OF_GPIO
721	help
722	  This driver is to support the GPIO block within the APM X-Gene SoC
723	  platform's generic flash controller. The GPIO pins are muxed with
724	  the generic flash controller's address and data pins. Say yes
725	  here to enable the GFC GPIO functionality.
726
727config GPIO_XGENE_SB
728	tristate "APM X-Gene GPIO standby controller support"
729	depends on (ARCH_XGENE || COMPILE_TEST)
730	select GPIO_GENERIC
731	select GPIOLIB_IRQCHIP
732	select IRQ_DOMAIN_HIERARCHY
733	help
734	  This driver supports the GPIO block within the APM X-Gene
735	  Standby Domain. Say yes here to enable the GPIO functionality.
736
737config GPIO_XILINX
738	tristate "Xilinx GPIO support"
739	select GPIOLIB_IRQCHIP
740	depends on OF_GPIO
741	help
742	  Say yes here to support the Xilinx FPGA GPIO device.
743
744config GPIO_XLP
745	tristate "Cavium ThunderX2 GPIO support"
746	depends on ARCH_THUNDER2 || COMPILE_TEST
747	select GPIOLIB_IRQCHIP
748	help
749	  This driver provides support for GPIO interface on Cavium's ThunderX2
750	  CN99XX SoCs (Originally from Netlogic XLP).
751
752	  If unsure, say N.
753
754config GPIO_XTENSA
755	bool "Xtensa GPIO32 support"
756	depends on XTENSA
757	depends on HAVE_XTENSA_GPIO32
758	depends on !SMP
759	help
760	  Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
761	  and EXPSTATE (output) ports.
762
763config GPIO_ZEVIO
764	bool "LSI ZEVIO SoC memory mapped GPIOs"
765	depends on ARM && OF_GPIO
766	help
767	  Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
768
769config GPIO_ZYNQ
770	tristate "Xilinx Zynq GPIO support"
771	depends on ARCH_ZYNQ || ARCH_ZYNQMP
772	select GPIOLIB_IRQCHIP
773	help
774	  Say yes here to support Xilinx Zynq GPIO controller.
775
776config GPIO_ZYNQMP_MODEPIN
777	tristate "ZynqMP ps-mode pin GPIO configuration driver"
778	depends on ZYNQMP_FIRMWARE
779	default ZYNQMP_FIRMWARE
780	help
781	  Say yes here to support the ZynqMP ps-mode pin GPIO configuration
782	  driver.
783
784	  This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE
785	  is 4-bits boot mode pins. It sets and gets the status of
786	  the ps-mode pin. Every pin can be configured as input/output.
787
788config GPIO_LOONGSON1
789	tristate "Loongson1 GPIO support"
790	depends on MACH_LOONGSON32
791	select GPIO_GENERIC
792	help
793	  Say Y or M here to support GPIO on Loongson1 SoCs.
794
795config GPIO_AMD_FCH
796	tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
797	help
798	  This option enables driver for GPIO on AMD's Fusion Controller Hub,
799	  as found on G-series SOCs (e.g. GX-412TC).
800
801	  Note: This driver doesn't register itself automatically, as it
802	  needs to be provided with platform-specific configuration.
803	  (See e.g. CONFIG_PCENGINES_APU2.)
804
805config GPIO_MSC313
806	bool "MStar MSC313 GPIO support"
807	depends on ARCH_MSTARV7
808	default ARCH_MSTARV7
809	select GPIOLIB_IRQCHIP
810	select IRQ_DOMAIN_HIERARCHY
811	help
812	  Say Y here to support the main GPIO block on MStar/SigmaStar
813	  ARMv7-based SoCs.
814
815config GPIO_IDT3243X
816	tristate "IDT 79RC3243X GPIO support"
817	depends on MIKROTIK_RB532 || COMPILE_TEST
818	select GPIO_GENERIC
819	select GPIOLIB_IRQCHIP
820	help
821	  Select this option to enable GPIO driver for
822	  IDT 79RC3243X-based devices like Mikrotik RB532.
823
824	  To compile this driver as a module, choose M here: the module will
825	  be called gpio-idt3243x.
826
827endmenu
828
829menu "Port-mapped I/O GPIO drivers"
830	depends on X86 # Unconditional I/O space access
831
832config GPIO_104_DIO_48E
833	tristate "ACCES 104-DIO-48E GPIO support"
834	depends on PC104
835	select ISA_BUS_API
836	select GPIOLIB_IRQCHIP
837	help
838	  Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
839	  104-DIO-24E). The base port addresses for the devices may be
840	  configured via the base module parameter. The interrupt line numbers
841	  for the devices may be configured via the irq module parameter.
842
843config GPIO_104_IDIO_16
844	tristate "ACCES 104-IDIO-16 GPIO support"
845	depends on PC104
846	select ISA_BUS_API
847	select GPIOLIB_IRQCHIP
848	help
849	  Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
850	  104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
851	  base port addresses for the devices may be configured via the base
852	  module parameter. The interrupt line numbers for the devices may be
853	  configured via the irq module parameter.
854
855config GPIO_104_IDI_48
856	tristate "ACCES 104-IDI-48 GPIO support"
857	depends on PC104
858	select ISA_BUS_API
859	select GPIOLIB_IRQCHIP
860	help
861	  Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
862	  104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
863	  the devices may be configured via the base module parameter. The
864	  interrupt line numbers for the devices may be configured via the irq
865	  module parameter.
866
867config GPIO_F7188X
868	tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
869	help
870	  This option enables support for GPIOs found on Fintek Super-I/O
871	  chips F71869, F71869A, F71882FG, F71889F and F81866.
872
873	  To compile this driver as a module, choose M here: the module will
874	  be called f7188x-gpio.
875
876config GPIO_GPIO_MM
877	tristate "Diamond Systems GPIO-MM GPIO support"
878	depends on PC104
879	select ISA_BUS_API
880	help
881	  Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
882
883	  The Diamond Systems GPIO-MM device features 48 lines of digital I/O
884	  via the emulation of dual 82C55A PPI chips. This driver provides GPIO
885	  support for these 48 channels of digital I/O.
886
887	  The base port addresses for the devices may be configured via the base
888	  array module parameter.
889
890config GPIO_IT87
891	tristate "IT87xx GPIO support"
892	help
893	  Say yes here to support GPIO functionality of IT87xx Super I/O chips.
894
895	  This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
896	  supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
897	  well.
898
899	  To compile this driver as a module, choose M here: the module will
900	  be called gpio_it87.
901
902config GPIO_SCH
903	tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
904	depends on (X86 || COMPILE_TEST) && ACPI
905	depends on LPC_SCH
906	select GPIOLIB_IRQCHIP
907	help
908	  Say yes here to support GPIO interface on Intel Poulsbo SCH,
909	  Intel Tunnel Creek processor, Intel Centerton processor or
910	  Intel Quark X1000 SoC.
911
912	  The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
913	  powered by the core power rail and are turned off during sleep
914	  modes (S3 and higher). The remaining four GPIOs are powered by
915	  the Intel SCH suspend power supply. These GPIOs remain
916	  active during S3. The suspend-powered GPIOs can be used to wake the
917	  system from the Suspend-to-RAM state.
918
919	  The Intel Tunnel Creek processor has 5 GPIOs powered by the
920	  core power rail and 9 from suspend power supply.
921
922	  The Intel Centerton processor has a total of 30 GPIO pins.
923	  Twenty-one are powered by the core power rail and 9 from the
924	  suspend power supply.
925
926	  The Intel Quark X1000 SoC has 2 GPIOs powered by the core
927	  power well and 6 from the suspend power well.
928
929config GPIO_SCH311X
930	tristate "SMSC SCH311x SuperI/O GPIO"
931	help
932	  Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
933	  SCH3116 "Super I/O" chipsets.
934
935	  To compile this driver as a module, choose M here: the module will
936	  be called gpio-sch311x.
937
938config GPIO_TS5500
939	tristate "TS-5500 DIO blocks and compatibles"
940	depends on TS5500 || COMPILE_TEST
941	help
942	  This driver supports Digital I/O exposed by pin blocks found on some
943	  Technologic Systems platforms. It includes, but is not limited to, 3
944	  blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
945	  LCD port.
946
947config GPIO_WINBOND
948	tristate "Winbond Super I/O GPIO support"
949	select ISA_BUS_API
950	help
951	  This option enables support for GPIOs found on Winbond Super I/O
952	  chips.
953	  Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
954	  supported.
955
956	  You will need to provide a module parameter "gpios", or a
957	  boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
958	  ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
959
960	  To compile this driver as a module, choose M here: the module will
961	  be called gpio-winbond.
962
963config GPIO_WS16C48
964	tristate "WinSystems WS16C48 GPIO support"
965	select ISA_BUS_API
966	select GPIOLIB_IRQCHIP
967	help
968	  Enables GPIO support for the WinSystems WS16C48. The base port
969	  addresses for the devices may be configured via the base module
970	  parameter. The interrupt line numbers for the devices may be
971	  configured via the irq module parameter.
972
973endmenu
974
975menu "I2C GPIO expanders"
976	depends on I2C
977
978config GPIO_ADP5588
979	tristate "ADP5588 I2C GPIO expander"
980	help
981	  This option enables support for 18 GPIOs found
982	  on Analog Devices ADP5588 GPIO Expanders.
983
984config GPIO_ADP5588_IRQ
985	bool "Interrupt controller support for ADP5588"
986	depends on GPIO_ADP5588=y
987	select GPIOLIB_IRQCHIP
988	help
989	  Say yes here to enable the adp5588 to be used as an interrupt
990	  controller. It requires the driver to be built in the kernel.
991
992config GPIO_ADNP
993	tristate "Avionic Design N-bit GPIO expander"
994	depends on OF_GPIO
995	select GPIOLIB_IRQCHIP
996	help
997	  This option enables support for N GPIOs found on Avionic Design
998	  I2C GPIO expanders. The register space will be extended by powers
999	  of two, so the controller will need to accommodate for that. For
1000	  example: if a controller provides 48 pins, 6 registers will be
1001	  enough to represent all pins, but the driver will assume a
1002	  register layout for 64 pins (8 registers).
1003
1004config GPIO_GW_PLD
1005	tristate "Gateworks PLD GPIO Expander"
1006	depends on OF_GPIO
1007	help
1008	  Say yes here to provide access to the Gateworks I2C PLD GPIO
1009	  Expander. This is used at least on the Cambria GW2358-4.
1010
1011config GPIO_MAX7300
1012	tristate "Maxim MAX7300 GPIO expander"
1013	select GPIO_MAX730X
1014	help
1015	  GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
1016
1017config GPIO_MAX732X
1018	tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
1019	help
1020	  Say yes here to support the MAX7319, MAX7320-7327 series of I2C
1021	  Port Expanders. Each IO port on these chips has a fixed role of
1022	  Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
1023	  Input and Output (designed by 'P'). The combinations are listed
1024	  below:
1025
1026	  8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
1027	                max7322 (4I4O), max7323 (4P4O)
1028
1029	  16 bits:      max7324 (8I8O), max7325 (8P8O),
1030	                max7326 (4I12O), max7327 (4P12O)
1031
1032	  Board setup code must specify the model to use, and the start
1033	  number for these GPIOs.
1034
1035config GPIO_MAX732X_IRQ
1036	bool "Interrupt controller support for MAX732x"
1037	depends on GPIO_MAX732X=y
1038	select GPIOLIB_IRQCHIP
1039	help
1040	  Say yes here to enable the max732x to be used as an interrupt
1041	  controller. It requires the driver to be built in the kernel.
1042
1043config GPIO_PCA953X
1044	tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
1045	select REGMAP_I2C
1046	help
1047	  Say yes here to provide access to several register-oriented
1048	  SMBus I/O expanders, made mostly by NXP or TI.  Compatible
1049	  models include:
1050
1051	  4 bits:       pca9536, pca9537
1052
1053	  8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
1054	                pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
1055
1056	  16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
1057	                tca6416
1058
1059	  24 bits:      tca6424
1060
1061	  40 bits:      pca9505, pca9698
1062
1063config GPIO_PCA953X_IRQ
1064	bool "Interrupt controller support for PCA953x"
1065	depends on GPIO_PCA953X
1066	select GPIOLIB_IRQCHIP
1067	help
1068	  Say yes here to enable the pca953x to be used as an interrupt
1069	  controller.
1070
1071config GPIO_PCA9570
1072	tristate "PCA9570 4-Bit I2C GPO expander"
1073	help
1074	  Say yes here to enable the GPO driver for the NXP PCA9570 chip.
1075
1076	  To compile this driver as a module, choose M here: the module will
1077	  be called gpio-pca9570.
1078
1079config GPIO_PCF857X
1080	tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
1081	select GPIOLIB_IRQCHIP
1082	select IRQ_DOMAIN
1083	help
1084	  Say yes here to provide access to most "quasi-bidirectional" I2C
1085	  GPIO expanders used for additional digital outputs or inputs.
1086	  Most of these parts are from NXP, though TI is a second source for
1087	  some of them.  Compatible models include:
1088
1089	  8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
1090	            pca9670, pca9672, pca9674, pca9674a,
1091	            max7328, max7329
1092
1093	  16 bits:  pcf8575, pcf8575c, pca8575,
1094	            pca9671, pca9673, pca9675
1095
1096	  Your board setup code will need to declare the expanders in
1097	  use, and assign numbers to the GPIOs they expose.  Those GPIOs
1098	  can then be used from drivers and other kernel code, just like
1099	  other GPIOs, but only accessible from task contexts.
1100
1101	  This driver provides an in-kernel interface to those GPIOs using
1102	  platform-neutral GPIO calls.
1103
1104config GPIO_TPIC2810
1105	tristate "TPIC2810 8-Bit I2C GPO expander"
1106	help
1107	  Say yes here to enable the GPO driver for the TI TPIC2810 chip.
1108
1109	  To compile this driver as a module, choose M here: the module will
1110	  be called gpio-tpic2810.
1111
1112config GPIO_TS4900
1113	tristate "Technologic Systems FPGA I2C GPIO"
1114	depends on SOC_IMX6 || COMPILE_TEST
1115	select REGMAP_I2C
1116	help
1117	  Say yes here to enabled the GPIO driver for Technologic's FPGA core.
1118	  Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
1119
1120endmenu
1121
1122menu "MFD GPIO expanders"
1123
1124config GPIO_ADP5520
1125	tristate "GPIO Support for ADP5520 PMIC"
1126	depends on PMIC_ADP5520
1127	help
1128	  This option enables support for on-chip GPIO found
1129	  on Analog Devices ADP5520 PMICs.
1130
1131config GPIO_ALTERA_A10SR
1132	tristate "Altera Arria10 System Resource GPIO"
1133	depends on MFD_ALTERA_A10SR
1134	help
1135	  Driver for Arria10 Development Kit GPIO expansion which
1136	  includes reads of pushbuttons and DIP switches as well
1137	  as writes to LEDs.
1138
1139config GPIO_ARIZONA
1140	tristate "Wolfson Microelectronics Arizona class devices"
1141	depends on MFD_ARIZONA
1142	help
1143	  Support for GPIOs on Wolfson Arizona class devices.
1144
1145config GPIO_BD71815
1146	tristate "ROHM BD71815 PMIC GPIO support"
1147	depends on MFD_ROHM_BD71828
1148	help
1149	  Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs
1150	  available on the ROHM PMIC.
1151
1152	  This driver can also be built as a module. If so, the module
1153	  will be called gpio-bd71815.
1154
1155config GPIO_BD71828
1156	tristate "ROHM BD71828 GPIO support"
1157	depends on MFD_ROHM_BD71828
1158	help
1159	  Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs
1160	  available on the ROHM PMIC in total. The GPIOs are limited to
1161	  outputs only and pins must be configured to GPIO outputs by
1162	  OTP. Enable this only if you want to use these pins as outputs.
1163
1164	  This driver can also be built as a module. If so, the module
1165	  will be called gpio-bd71828.
1166
1167config GPIO_BD9571MWV
1168	tristate "ROHM BD9571 GPIO support"
1169	depends on MFD_BD9571MWV
1170	help
1171	  Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
1172	  available on the ROHM PMIC in total, both of which can also
1173	  generate interrupts.
1174
1175	  This driver can also be built as a module. If so, the module
1176	  will be called gpio-bd9571mwv.
1177
1178config GPIO_CRYSTAL_COVE
1179	tristate "GPIO support for Crystal Cove PMIC"
1180	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1181	select GPIOLIB_IRQCHIP
1182	help
1183	  Support for GPIO pins on Crystal Cove PMIC.
1184
1185	  Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC
1186	  inside.
1187
1188	  This driver can also be built as a module. If so, the module will be
1189	  called gpio-crystalcove.
1190
1191config GPIO_CS5535
1192	tristate "AMD CS5535/CS5536 GPIO support"
1193	depends on X86 || MIPS || COMPILE_TEST
1194	depends on MFD_CS5535
1195	help
1196	  The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1197	  can be used for quite a number of things.  The CS5535/6 is found on
1198	  AMD Geode and Lemote Yeeloong devices.
1199
1200	  If unsure, say N.
1201
1202config GPIO_DA9052
1203	tristate "Dialog DA9052 GPIO"
1204	depends on PMIC_DA9052
1205	help
1206	  Say yes here to enable the GPIO driver for the DA9052 chip.
1207
1208config GPIO_DA9055
1209	tristate "Dialog Semiconductor DA9055 GPIO"
1210	depends on MFD_DA9055
1211	help
1212	  Say yes here to enable the GPIO driver for the DA9055 chip.
1213
1214	  The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1215	  be controlled by this driver.
1216
1217	  If driver is built as a module it will be called gpio-da9055.
1218
1219config GPIO_DLN2
1220	tristate "Diolan DLN2 GPIO support"
1221	depends on MFD_DLN2
1222	select GPIOLIB_IRQCHIP
1223
1224	help
1225	  Select this option to enable GPIO driver for the Diolan DLN2
1226	  board.
1227
1228	  This driver can also be built as a module. If so, the module
1229	  will be called gpio-dln2.
1230
1231config HTC_EGPIO
1232	bool "HTC EGPIO support"
1233	depends on ARM
1234	help
1235	  This driver supports the CPLD egpio chip present on
1236	  several HTC phones.  It provides basic support for input
1237	  pins, output pins, and IRQs.
1238
1239config GPIO_JANZ_TTL
1240	tristate "Janz VMOD-TTL Digital IO Module"
1241	depends on MFD_JANZ_CMODIO
1242	help
1243	  This enables support for the Janz VMOD-TTL Digital IO module.
1244	  This driver provides support for driving the pins in output
1245	  mode only. Input mode is not supported.
1246
1247config GPIO_KEMPLD
1248	tristate "Kontron ETX / COMexpress GPIO"
1249	depends on MFD_KEMPLD
1250	help
1251	  This enables support for the PLD GPIO interface on some Kontron ETX
1252	  and COMexpress (ETXexpress) modules.
1253
1254	  This driver can also be built as a module. If so, the module will be
1255	  called gpio-kempld.
1256
1257config GPIO_LP3943
1258	tristate "TI/National Semiconductor LP3943 GPIO expander"
1259	depends on MFD_LP3943
1260	help
1261	  GPIO driver for LP3943 MFD.
1262	  LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1263	  Open drain outputs are required for this usage.
1264
1265config GPIO_LP873X
1266	tristate "TI LP873X GPO"
1267	depends on MFD_TI_LP873X
1268	help
1269	  This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1270	  on LP873X PMICs.
1271
1272	  This driver can also be built as a module. If so, the module will be
1273	  called gpio-lp873x.
1274
1275config GPIO_LP87565
1276	tristate "TI LP87565 GPIO"
1277	depends on MFD_TI_LP87565
1278	help
1279	  This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1280	  on LP87565 PMICs.
1281
1282	  This driver can also be built as a module. If so, the module will be
1283	  called gpio-lp87565.
1284
1285config GPIO_MADERA
1286	tristate "Cirrus Logic Madera class codecs"
1287	depends on PINCTRL_MADERA
1288	help
1289	  Support for GPIOs on Cirrus Logic Madera class codecs.
1290
1291config GPIO_MAX77620
1292	tristate "GPIO support for PMIC MAX77620 and MAX20024"
1293	depends on MFD_MAX77620
1294	select GPIOLIB_IRQCHIP
1295	help
1296	  GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1297	  MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1298	  driver also provides interrupt support for each of the GPIOs.
1299	  Say yes here to enable the max77620 to be used as GPIO controller.
1300
1301config GPIO_MAX77650
1302	tristate "Maxim MAX77650/77651 GPIO support"
1303	depends on MFD_MAX77650
1304	help
1305	  GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1306	  These chips have a single pin that can be configured as GPIO.
1307
1308config GPIO_PALMAS
1309	bool "TI PALMAS series PMICs GPIO"
1310	depends on MFD_PALMAS
1311	help
1312	  Select this option to enable GPIO driver for the TI PALMAS
1313	  series chip family.
1314
1315config GPIO_RC5T583
1316	bool "RICOH RC5T583 GPIO"
1317	depends on MFD_RC5T583
1318	help
1319	  Select this option to enable GPIO driver for the Ricoh RC5T583
1320	  chip family.
1321	  This driver provides the support for driving/reading the GPIO pins
1322	  of RC5T583 device through standard GPIO library.
1323
1324config GPIO_SL28CPLD
1325	tristate "Kontron sl28cpld GPIO support"
1326	depends on MFD_SL28CPLD || COMPILE_TEST
1327	select GPIO_REGMAP
1328	select GPIOLIB_IRQCHIP
1329	select REGMAP_IRQ
1330	help
1331	  This enables support for the GPIOs found on the Kontron sl28 CPLD.
1332
1333	  This driver can also be built as a module. If so, the module will be
1334	  called gpio-sl28cpld.
1335
1336config GPIO_STMPE
1337	bool "STMPE GPIOs"
1338	depends on MFD_STMPE
1339	depends on OF_GPIO
1340	select GPIOLIB_IRQCHIP
1341	help
1342	  This enables support for the GPIOs found on the STMPE I/O
1343	  Expanders.
1344
1345config GPIO_TC3589X
1346	bool "TC3589X GPIOs"
1347	depends on MFD_TC3589X
1348	depends on OF_GPIO
1349	select GPIOLIB_IRQCHIP
1350	help
1351	  This enables support for the GPIOs found on the TC3589X
1352	  I/O Expander.
1353
1354config GPIO_TIMBERDALE
1355	bool "Support for timberdale GPIO IP"
1356	depends on MFD_TIMBERDALE
1357	help
1358	Add support for the GPIO IP in the timberdale FPGA.
1359
1360config GPIO_TN48M_CPLD
1361	tristate "Delta Networks TN48M switch CPLD GPIO driver"
1362	depends on MFD_TN48M_CPLD
1363	select GPIO_REGMAP
1364	help
1365	  This enables support for the GPIOs found on the Delta
1366	  Networks TN48M switch Lattice CPLD. It provides 12 pins in total,
1367	  they are input-only or output-only type.
1368
1369	  This driver can also be built as a module. If so, the
1370	  module will be called gpio-tn48m.
1371
1372config GPIO_TPS65086
1373	tristate "TI TPS65086 GPO"
1374	depends on MFD_TPS65086
1375	help
1376	  This driver supports the GPO on TI TPS65086x PMICs.
1377
1378config GPIO_TPS65218
1379	tristate "TPS65218 GPIO"
1380	depends on MFD_TPS65218
1381	help
1382	  Select this option to enable GPIO driver for the TPS65218
1383	  chip family.
1384
1385config GPIO_TPS6586X
1386	bool "TPS6586X GPIO"
1387	depends on MFD_TPS6586X
1388	help
1389	  Select this option to enable GPIO driver for the TPS6586X
1390	  chip family.
1391
1392config GPIO_TPS65910
1393	bool "TPS65910 GPIO"
1394	depends on MFD_TPS65910
1395	help
1396	  Select this option to enable GPIO driver for the TPS65910
1397	  chip family.
1398
1399config GPIO_TPS65912
1400	tristate "TI TPS65912 GPIO"
1401	depends on MFD_TPS65912
1402	help
1403	  This driver supports TPS65912 GPIO chip.
1404
1405config GPIO_TPS68470
1406	tristate "TPS68470 GPIO"
1407	depends on INTEL_SKL_INT3472
1408	help
1409	  Select this option to enable GPIO driver for the TPS68470
1410	  chip family.
1411	  There are 7 GPIOs and few sensor-related GPIOs supported
1412	  by the TPS68470. While the 7 GPIOs can be configured as
1413	  input or output as appropriate, the sensor related GPIOs
1414	  are "output only" GPIOs.
1415
1416config GPIO_TQMX86
1417	tristate "TQ-Systems QTMX86 GPIO"
1418	depends on MFD_TQMX86 || COMPILE_TEST
1419	depends on HAS_IOPORT_MAP
1420	select GPIOLIB_IRQCHIP
1421	help
1422	  This driver supports GPIO on the TQMX86 IO controller.
1423
1424config GPIO_TWL4030
1425	tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1426	depends on TWL4030_CORE
1427	help
1428	  Say yes here to access the GPIO signals of various multi-function
1429	  power management chips from Texas Instruments.
1430
1431config GPIO_TWL6040
1432	tristate "TWL6040 GPO"
1433	depends on TWL6040_CORE
1434	help
1435	  Say yes here to access the GPO signals of twl6040
1436	  audio chip from Texas Instruments.
1437
1438config GPIO_UCB1400
1439	tristate "Philips UCB1400 GPIO"
1440	depends on UCB1400_CORE
1441	help
1442	  This enables support for the Philips UCB1400 GPIO pins.
1443	  The UCB1400 is an AC97 audio codec.
1444
1445config GPIO_WHISKEY_COVE
1446	tristate "GPIO support for Whiskey Cove PMIC"
1447	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1448	select GPIOLIB_IRQCHIP
1449	help
1450	  Support for GPIO pins on Whiskey Cove PMIC.
1451
1452	  Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC
1453	  inside.
1454
1455	  This driver can also be built as a module. If so, the module will be
1456	  called gpio-wcove.
1457
1458config GPIO_WM831X
1459	tristate "WM831x GPIOs"
1460	depends on MFD_WM831X
1461	help
1462	  Say yes here to access the GPIO signals of WM831x power management
1463	  chips from Wolfson Microelectronics.
1464
1465config GPIO_WM8350
1466	tristate "WM8350 GPIOs"
1467	depends on MFD_WM8350
1468	help
1469	  Say yes here to access the GPIO signals of WM8350 power management
1470	  chips from Wolfson Microelectronics.
1471
1472config GPIO_WM8994
1473	tristate "WM8994 GPIOs"
1474	depends on MFD_WM8994
1475	help
1476	  Say yes here to access the GPIO signals of WM8994 audio hub
1477	  CODECs from Wolfson Microelectronics.
1478
1479endmenu
1480
1481menu "PCI GPIO expanders"
1482	depends on PCI
1483
1484config GPIO_AMD8111
1485	tristate "AMD 8111 GPIO driver"
1486	depends on X86 || COMPILE_TEST
1487	depends on HAS_IOPORT_MAP
1488	help
1489	  The AMD 8111 southbridge contains 32 GPIO pins which can be used.
1490
1491	  Note that usually system firmware/ACPI handles GPIO pins on their
1492	  own and users might easily break their systems with uncareful usage
1493	  of this driver!
1494
1495	  If unsure, say N
1496
1497config GPIO_BT8XX
1498	tristate "BT8XX GPIO abuser"
1499	depends on VIDEO_BT848=n
1500	help
1501	  The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1502	  as a cheap PCI GPIO card.
1503
1504	  This chip can be found on Miro, Hauppauge and STB TV-cards.
1505
1506	  The card needs to be physically altered for using it as a
1507	  GPIO card. For more information on how to build a GPIO card
1508	  from a BT8xx TV card, see the documentation file at
1509	  Documentation/driver-api/gpio/bt8xxgpio.rst
1510
1511	  If unsure, say N.
1512
1513config GPIO_MERRIFIELD
1514	tristate "Intel Merrifield GPIO support"
1515	depends on X86_INTEL_MID
1516	select GPIOLIB_IRQCHIP
1517	help
1518	  Say Y here to support Intel Merrifield GPIO.
1519
1520config GPIO_MLXBF
1521	tristate "Mellanox BlueField SoC GPIO"
1522	depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1523	select GPIO_GENERIC
1524	help
1525	  Say Y here if you want GPIO support on Mellanox BlueField SoC.
1526
1527config GPIO_MLXBF2
1528	tristate "Mellanox BlueField 2 SoC GPIO"
1529	depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1530	select GPIO_GENERIC
1531	help
1532	  Say Y here if you want GPIO support on Mellanox BlueField 2 SoC.
1533
1534config GPIO_ML_IOH
1535	tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1536	depends on X86 || COMPILE_TEST
1537	select GENERIC_IRQ_CHIP
1538	help
1539	  ML7213 is companion chip for Intel Atom E6xx series.
1540	  This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output
1541	  Hub) which is for IVI (In-Vehicle Infotainment) use.
1542	  This driver can access the IOH's GPIO device.
1543
1544config GPIO_PCH
1545	tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO"
1546	depends on X86_32 || MIPS || COMPILE_TEST
1547	select GENERIC_IRQ_CHIP
1548	help
1549	  This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff,
1550	  which is an IOH (Input/Output Hub) for x86 embedded processor.
1551	  This driver can access PCH GPIO device.
1552
1553	  This driver also can be used for LAPIS Semiconductor IOH (Input/
1554	  Output Hub), ML7223 and ML7831.
1555	  ML7223 IOH is for MP (Media Phone) use.
1556	  ML7831 IOH is for general purpose use.
1557	  ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1558	  ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1559
1560config GPIO_PCI_IDIO_16
1561	tristate "ACCES PCI-IDIO-16 GPIO support"
1562	select GPIOLIB_IRQCHIP
1563	help
1564	  Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1565	  generated when any of the inputs change state (low to high or high to
1566	  low). Input filter control is not supported by this driver, and the
1567	  input filters are deactivated by this driver.
1568
1569config GPIO_PCIE_IDIO_24
1570	tristate "ACCES PCIe-IDIO-24 GPIO support"
1571	select GPIOLIB_IRQCHIP
1572	help
1573	  Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1574	  PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1575	  when any of the inputs change state (low to high or high to low).
1576	  Input filter control is not supported by this driver, and the input
1577	  filters are deactivated by this driver.
1578
1579config GPIO_RDC321X
1580	tristate "RDC R-321x GPIO support"
1581	select MFD_CORE
1582	select MFD_RDC321X
1583	help
1584	  Support for the RDC R321x SoC GPIOs over southbridge
1585	  PCI configuration space.
1586
1587config GPIO_SODAVILLE
1588	bool "Intel Sodaville GPIO support"
1589	depends on X86 && OF
1590	select GPIO_GENERIC
1591	select GENERIC_IRQ_CHIP
1592	help
1593	  Say Y here to support Intel Sodaville GPIO.
1594
1595endmenu
1596
1597menu "SPI GPIO expanders"
1598	depends on SPI_MASTER
1599
1600config GPIO_74X164
1601	tristate "74x164 serial-in/parallel-out 8-bits shift register"
1602	depends on OF_GPIO
1603	help
1604	  Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1605	  shift registers. This driver can be used to provide access
1606	  to more GPIO outputs.
1607
1608config GPIO_MAX3191X
1609	tristate "Maxim MAX3191x industrial serializer"
1610	select CRC8
1611	help
1612	  GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1613	  MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1614	  chip to make 8 digital 24V inputs available via SPI.  Supports
1615	  CRC checksums to guard against electromagnetic interference,
1616	  as well as undervoltage and overtemperature detection.
1617
1618config GPIO_MAX7301
1619	tristate "Maxim MAX7301 GPIO expander"
1620	select GPIO_MAX730X
1621	help
1622	  GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1623
1624config GPIO_MC33880
1625	tristate "Freescale MC33880 high-side/low-side switch"
1626	help
1627	  SPI driver for Freescale MC33880 high-side/low-side switch.
1628	  This provides GPIO interface supporting inputs and outputs.
1629
1630config GPIO_PISOSR
1631	tristate "Generic parallel-in/serial-out shift register"
1632	help
1633	  GPIO driver for SPI compatible parallel-in/serial-out shift
1634	  registers. These are input only devices.
1635
1636config GPIO_XRA1403
1637	tristate "EXAR XRA1403 16-bit GPIO expander"
1638	select REGMAP_SPI
1639	help
1640	  GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1641
1642config GPIO_MOXTET
1643	tristate "Turris Mox Moxtet bus GPIO expander"
1644	depends on MOXTET
1645	help
1646	  Say yes here if you are building for the Turris Mox router.
1647	  This is the driver needed for configuring the GPIOs via the Moxtet
1648	  bus. For example the Mox module with SFP cage needs this driver
1649	  so that phylink can use corresponding GPIOs.
1650
1651endmenu
1652
1653menu "USB GPIO expanders"
1654	depends on USB
1655
1656config GPIO_VIPERBOARD
1657	tristate "Viperboard GPIO a & b support"
1658	depends on MFD_VIPERBOARD
1659	help
1660	  Say yes here to access the GPIO signals of Nano River
1661	  Technologies Viperboard. There are two GPIO chips on the
1662	  board: gpioa and gpiob.
1663	  See viperboard API specification and Nano
1664	  River Tech's viperboard.h for detailed meaning
1665	  of the module parameters.
1666
1667endmenu
1668
1669menu "Virtual GPIO drivers"
1670
1671config GPIO_AGGREGATOR
1672	tristate "GPIO Aggregator"
1673	help
1674	  Say yes here to enable the GPIO Aggregator, which provides a way to
1675	  aggregate existing GPIO lines into a new virtual GPIO chip.
1676	  This can serve the following purposes:
1677	    - Assign permissions for a collection of GPIO lines to a user,
1678	    - Export a collection of GPIO lines to a virtual machine,
1679	    - Provide a generic driver for a GPIO-operated device in an
1680	      industrial control context, to be operated from userspace using
1681	      the GPIO chardev interface.
1682
1683config GPIO_MOCKUP
1684	tristate "GPIO Testing Driver"
1685	select IRQ_SIM
1686	help
1687	  This enables GPIO Testing driver, which provides a way to test GPIO
1688	  subsystem through sysfs (or char device) and debugfs.
1689	  User could use it through the script in
1690	  tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1691	  it.
1692
1693config GPIO_VIRTIO
1694	tristate "VirtIO GPIO support"
1695	depends on VIRTIO
1696	select GPIOLIB_IRQCHIP
1697	help
1698	  Say Y here to enable guest support for virtio-based GPIO controllers.
1699
1700	  These virtual GPIOs can be routed to real GPIOs or attached to
1701	  simulators on the host (like QEMU).
1702
1703config GPIO_SIM
1704	tristate "GPIO Simulator Module"
1705	select IRQ_SIM
1706	select CONFIGFS_FS
1707	help
1708	  This enables the GPIO simulator - a configfs-based GPIO testing
1709	  driver.
1710
1711endmenu
1712
1713endif
1714