xref: /openbmc/linux/drivers/gpio/Kconfig (revision 462cd772)
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	depends on ARCH_AT91 || COMPILE_TEST
548	select GPIO_SYSCON
549	help
550	  Say yes here to use the PIOBU pins as GPIOs.
551
552	  PIOBU pins on the SAMA5D2 can be used as GPIOs.
553	  The difference from regular GPIOs is that they
554	  maintain their value during backup/self-refresh.
555
556config GPIO_SIFIVE
557	bool "SiFive GPIO support"
558	depends on OF_GPIO
559	select IRQ_DOMAIN_HIERARCHY
560	select GPIO_GENERIC
561	select GPIOLIB_IRQCHIP
562	select REGMAP_MMIO
563	help
564	  Say yes here to support the GPIO device on SiFive SoCs.
565
566config GPIO_SIOX
567	tristate "SIOX GPIO support"
568	depends on SIOX
569	select GPIOLIB_IRQCHIP
570	help
571	  Say yes here to support SIOX I/O devices. These are units connected
572	  via a SIOX bus and have a number of fixed-direction I/O lines.
573
574config GPIO_SNPS_CREG
575	bool "Synopsys GPIO via CREG (Control REGisters) driver"
576	depends on ARC || COMPILE_TEST
577	depends on OF_GPIO
578	help
579	  This driver supports GPIOs via CREG on various Synopsys SoCs.
580	  This is a single-register MMIO GPIO driver for complex cases
581	  where only several fields in register belong to GPIO lines and
582	  each GPIO line owns a field with different length and on/off value.
583
584config GPIO_SPEAR_SPICS
585	bool "ST SPEAr13xx SPI Chip Select as GPIO support"
586	depends on PLAT_SPEAR
587	select GENERIC_IRQ_CHIP
588	help
589	  Say yes here to support ST SPEAr SPI Chip Select as GPIO device.
590
591config GPIO_SPRD
592	tristate "Spreadtrum GPIO support"
593	depends on ARCH_SPRD || COMPILE_TEST
594	depends on OF_GPIO
595	select GPIOLIB_IRQCHIP
596	help
597	  Say yes here to support Spreadtrum GPIO device.
598
599config GPIO_STA2X11
600	bool "STA2x11/ConneXt GPIO support"
601	depends on MFD_STA2X11
602	select GENERIC_IRQ_CHIP
603	help
604	  Say yes here to support the STA2x11/ConneXt GPIO device.
605	  The GPIO module has 128 GPIO pins with alternate functions.
606
607config GPIO_STP_XWAY
608	bool "XWAY STP GPIOs"
609	depends on SOC_XWAY || COMPILE_TEST
610	depends on OF_GPIO
611	help
612	  This enables support for the Serial To Parallel (STP) unit found on
613	  XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
614	  that can be up to 24 bits. This peripheral is aimed at driving LEDs.
615	  Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and
616	  phy status.
617
618config GPIO_SYSCON
619	tristate "GPIO based on SYSCON"
620	depends on MFD_SYSCON && OF
621	help
622	  Say yes here to support GPIO functionality though SYSCON driver.
623
624config GPIO_TB10X
625	bool
626	select GPIO_GENERIC
627	select GENERIC_IRQ_CHIP
628	select OF_GPIO
629
630config GPIO_TEGRA
631	tristate "NVIDIA Tegra GPIO support"
632	default ARCH_TEGRA
633	depends on ARCH_TEGRA || COMPILE_TEST
634	depends on OF_GPIO
635	select GPIOLIB_IRQCHIP
636	select IRQ_DOMAIN_HIERARCHY
637	help
638	  Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
639
640config GPIO_TEGRA186
641	tristate "NVIDIA Tegra186 GPIO support"
642	default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC
643	depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST
644	depends on OF_GPIO
645	select GPIOLIB_IRQCHIP
646	select IRQ_DOMAIN_HIERARCHY
647	help
648	  Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
649
650config GPIO_TS4800
651	tristate "TS-4800 DIO blocks and compatibles"
652	depends on OF_GPIO
653	depends on SOC_IMX51 || COMPILE_TEST
654	select GPIO_GENERIC
655	help
656	  This driver support TS-4800 FPGA GPIO controllers.
657
658config GPIO_THUNDERX
659	tristate "Cavium ThunderX/OCTEON-TX GPIO"
660	depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
661	depends on PCI_MSI
662	select GPIOLIB_IRQCHIP
663	select IRQ_DOMAIN_HIERARCHY
664	select IRQ_FASTEOI_HIERARCHY_HANDLERS
665	help
666	  Say yes here to support the on-chip GPIO lines on the ThunderX
667	  and OCTEON-TX families of SoCs.
668
669config GPIO_UNIPHIER
670	tristate "UniPhier GPIO support"
671	depends on ARCH_UNIPHIER || COMPILE_TEST
672	depends on OF_GPIO
673	select IRQ_DOMAIN_HIERARCHY
674	help
675	  Say yes here to support UniPhier GPIOs.
676
677config GPIO_VF610
678	def_bool y
679	depends on ARCH_MXC
680	select GPIOLIB_IRQCHIP
681	help
682	  Say yes here to support i.MX or Vybrid vf610 GPIOs.
683
684config GPIO_VISCONTI
685	tristate "Toshiba Visconti GPIO support"
686	depends on ARCH_VISCONTI || COMPILE_TEST
687	depends on OF_GPIO
688	select GPIOLIB_IRQCHIP
689	select GPIO_GENERIC
690	select IRQ_DOMAIN_HIERARCHY
691	help
692	  Say yes here to support GPIO on Tohisba Visconti.
693
694config GPIO_VX855
695	tristate "VIA VX855/VX875 GPIO"
696	depends on (X86 || COMPILE_TEST) && PCI
697	select MFD_CORE
698	select MFD_VX855
699	help
700	  Support access to the VX855/VX875 GPIO lines through the GPIO library.
701
702	  This driver provides common support for accessing the device.
703	  Additional drivers must be enabled in order to use the
704	  functionality of the device.
705
706config GPIO_WCD934X
707	tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver"
708	depends on MFD_WCD934X && OF_GPIO
709	help
710         This driver is to support GPIO block found on the Qualcomm Technologies
711	 Inc WCD9340/WCD9341 Audio Codec.
712
713config GPIO_XGENE
714	bool "APM X-Gene GPIO controller support"
715	depends on ARM64 && OF_GPIO
716	help
717	  This driver is to support the GPIO block within the APM X-Gene SoC
718	  platform's generic flash controller. The GPIO pins are muxed with
719	  the generic flash controller's address and data pins. Say yes
720	  here to enable the GFC GPIO functionality.
721
722config GPIO_XGENE_SB
723	tristate "APM X-Gene GPIO standby controller support"
724	depends on (ARCH_XGENE || COMPILE_TEST)
725	select GPIO_GENERIC
726	select GPIOLIB_IRQCHIP
727	select IRQ_DOMAIN_HIERARCHY
728	help
729	  This driver supports the GPIO block within the APM X-Gene
730	  Standby Domain. Say yes here to enable the GPIO functionality.
731
732config GPIO_XILINX
733	tristate "Xilinx GPIO support"
734	select GPIOLIB_IRQCHIP
735	depends on OF_GPIO
736	help
737	  Say yes here to support the Xilinx FPGA GPIO device.
738
739config GPIO_XLP
740	tristate "Cavium ThunderX2 GPIO support"
741	depends on ARCH_THUNDER2 || COMPILE_TEST
742	select GPIOLIB_IRQCHIP
743	help
744	  This driver provides support for GPIO interface on Cavium's ThunderX2
745	  CN99XX SoCs (Originally from Netlogic XLP).
746
747	  If unsure, say N.
748
749config GPIO_XTENSA
750	bool "Xtensa GPIO32 support"
751	depends on XTENSA
752	depends on HAVE_XTENSA_GPIO32
753	depends on !SMP
754	help
755	  Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
756	  and EXPSTATE (output) ports.
757
758config GPIO_ZEVIO
759	bool "LSI ZEVIO SoC memory mapped GPIOs"
760	depends on ARM && OF_GPIO
761	help
762	  Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
763
764config GPIO_ZYNQ
765	tristate "Xilinx Zynq GPIO support"
766	depends on ARCH_ZYNQ || ARCH_ZYNQMP
767	select GPIOLIB_IRQCHIP
768	help
769	  Say yes here to support Xilinx Zynq GPIO controller.
770
771config GPIO_ZYNQMP_MODEPIN
772	tristate "ZynqMP ps-mode pin GPIO configuration driver"
773	depends on ZYNQMP_FIRMWARE
774	default ZYNQMP_FIRMWARE
775	help
776	  Say yes here to support the ZynqMP ps-mode pin GPIO configuration
777	  driver.
778
779	  This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE
780	  is 4-bits boot mode pins. It sets and gets the status of
781	  the ps-mode pin. Every pin can be configured as input/output.
782
783config GPIO_LOONGSON1
784	tristate "Loongson1 GPIO support"
785	depends on MACH_LOONGSON32
786	select GPIO_GENERIC
787	help
788	  Say Y or M here to support GPIO on Loongson1 SoCs.
789
790config GPIO_AMD_FCH
791	tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
792	help
793	  This option enables driver for GPIO on AMD's Fusion Controller Hub,
794	  as found on G-series SOCs (e.g. GX-412TC).
795
796	  Note: This driver doesn't register itself automatically, as it
797	  needs to be provided with platform-specific configuration.
798	  (See e.g. CONFIG_PCENGINES_APU2.)
799
800config GPIO_MSC313
801	bool "MStar MSC313 GPIO support"
802	depends on ARCH_MSTARV7
803	default ARCH_MSTARV7
804	select GPIOLIB_IRQCHIP
805	select IRQ_DOMAIN_HIERARCHY
806	help
807	  Say Y here to support the main GPIO block on MStar/SigmaStar
808	  ARMv7-based SoCs.
809
810config GPIO_IDT3243X
811	tristate "IDT 79RC3243X GPIO support"
812	depends on MIKROTIK_RB532 || COMPILE_TEST
813	select GPIO_GENERIC
814	select GPIOLIB_IRQCHIP
815	help
816	  Select this option to enable GPIO driver for
817	  IDT 79RC3243X-based devices like Mikrotik RB532.
818
819	  To compile this driver as a module, choose M here: the module will
820	  be called gpio-idt3243x.
821
822endmenu
823
824menu "Port-mapped I/O GPIO drivers"
825	depends on X86 # Unconditional I/O space access
826
827config GPIO_I8255
828	tristate
829	help
830	  Enables support for the i8255 interface library functions. The i8255
831	  interface library provides functions to facilitate communication with
832	  interfaces compatible with the venerable Intel 8255 Programmable
833	  Peripheral Interface (PPI). The Intel 8255 PPI chip was first released
834	  in the early 1970s but compatible interfaces are nowadays typically
835	  found embedded in larger VLSI processing chips and FPGA components.
836
837	  If built as a module its name will be gpio-i8255.
838
839config GPIO_104_DIO_48E
840	tristate "ACCES 104-DIO-48E GPIO support"
841	depends on PC104
842	select ISA_BUS_API
843	select GPIOLIB_IRQCHIP
844	select GPIO_I8255
845	help
846	  Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
847	  104-DIO-24E). The base port addresses for the devices may be
848	  configured via the base module parameter. The interrupt line numbers
849	  for the devices may be configured via the irq module parameter.
850
851config GPIO_104_IDIO_16
852	tristate "ACCES 104-IDIO-16 GPIO support"
853	depends on PC104
854	select ISA_BUS_API
855	select GPIOLIB_IRQCHIP
856	help
857	  Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
858	  104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
859	  base port addresses for the devices may be configured via the base
860	  module parameter. The interrupt line numbers for the devices may be
861	  configured via the irq module parameter.
862
863config GPIO_104_IDI_48
864	tristate "ACCES 104-IDI-48 GPIO support"
865	depends on PC104
866	select ISA_BUS_API
867	select GPIOLIB_IRQCHIP
868	select GPIO_I8255
869	help
870	  Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
871	  104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
872	  the devices may be configured via the base module parameter. The
873	  interrupt line numbers for the devices may be configured via the irq
874	  module parameter.
875
876config GPIO_F7188X
877	tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
878	help
879	  This option enables support for GPIOs found on Fintek Super-I/O
880	  chips F71869, F71869A, F71882FG, F71889F and F81866.
881
882	  To compile this driver as a module, choose M here: the module will
883	  be called f7188x-gpio.
884
885config GPIO_GPIO_MM
886	tristate "Diamond Systems GPIO-MM GPIO support"
887	depends on PC104
888	select ISA_BUS_API
889	select GPIO_I8255
890	help
891	  Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
892
893	  The Diamond Systems GPIO-MM device features 48 lines of digital I/O
894	  via the emulation of dual 82C55A PPI chips. This driver provides GPIO
895	  support for these 48 channels of digital I/O.
896
897	  The base port addresses for the devices may be configured via the base
898	  array module parameter.
899
900config GPIO_IT87
901	tristate "IT87xx GPIO support"
902	help
903	  Say yes here to support GPIO functionality of IT87xx Super I/O chips.
904
905	  This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
906	  supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
907	  well.
908
909	  To compile this driver as a module, choose M here: the module will
910	  be called gpio_it87.
911
912config GPIO_SCH
913	tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
914	depends on (X86 || COMPILE_TEST) && ACPI
915	depends on LPC_SCH
916	select GPIOLIB_IRQCHIP
917	help
918	  Say yes here to support GPIO interface on Intel Poulsbo SCH,
919	  Intel Tunnel Creek processor, Intel Centerton processor or
920	  Intel Quark X1000 SoC.
921
922	  The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
923	  powered by the core power rail and are turned off during sleep
924	  modes (S3 and higher). The remaining four GPIOs are powered by
925	  the Intel SCH suspend power supply. These GPIOs remain
926	  active during S3. The suspend-powered GPIOs can be used to wake the
927	  system from the Suspend-to-RAM state.
928
929	  The Intel Tunnel Creek processor has 5 GPIOs powered by the
930	  core power rail and 9 from suspend power supply.
931
932	  The Intel Centerton processor has a total of 30 GPIO pins.
933	  Twenty-one are powered by the core power rail and 9 from the
934	  suspend power supply.
935
936	  The Intel Quark X1000 SoC has 2 GPIOs powered by the core
937	  power well and 6 from the suspend power well.
938
939config GPIO_SCH311X
940	tristate "SMSC SCH311x SuperI/O GPIO"
941	help
942	  Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
943	  SCH3116 "Super I/O" chipsets.
944
945	  To compile this driver as a module, choose M here: the module will
946	  be called gpio-sch311x.
947
948config GPIO_TS5500
949	tristate "TS-5500 DIO blocks and compatibles"
950	depends on TS5500 || COMPILE_TEST
951	help
952	  This driver supports Digital I/O exposed by pin blocks found on some
953	  Technologic Systems platforms. It includes, but is not limited to, 3
954	  blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
955	  LCD port.
956
957config GPIO_WINBOND
958	tristate "Winbond Super I/O GPIO support"
959	select ISA_BUS_API
960	help
961	  This option enables support for GPIOs found on Winbond Super I/O
962	  chips.
963	  Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
964	  supported.
965
966	  You will need to provide a module parameter "gpios", or a
967	  boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
968	  ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
969
970	  To compile this driver as a module, choose M here: the module will
971	  be called gpio-winbond.
972
973config GPIO_WS16C48
974	tristate "WinSystems WS16C48 GPIO support"
975	select ISA_BUS_API
976	select GPIOLIB_IRQCHIP
977	help
978	  Enables GPIO support for the WinSystems WS16C48. The base port
979	  addresses for the devices may be configured via the base module
980	  parameter. The interrupt line numbers for the devices may be
981	  configured via the irq module parameter.
982
983endmenu
984
985menu "I2C GPIO expanders"
986	depends on I2C
987
988config GPIO_ADP5588
989	tristate "ADP5588 I2C GPIO expander"
990	help
991	  This option enables support for 18 GPIOs found
992	  on Analog Devices ADP5588 GPIO Expanders.
993
994config GPIO_ADP5588_IRQ
995	bool "Interrupt controller support for ADP5588"
996	depends on GPIO_ADP5588=y
997	select GPIOLIB_IRQCHIP
998	help
999	  Say yes here to enable the adp5588 to be used as an interrupt
1000	  controller. It requires the driver to be built in the kernel.
1001
1002config GPIO_ADNP
1003	tristate "Avionic Design N-bit GPIO expander"
1004	depends on OF_GPIO
1005	select GPIOLIB_IRQCHIP
1006	help
1007	  This option enables support for N GPIOs found on Avionic Design
1008	  I2C GPIO expanders. The register space will be extended by powers
1009	  of two, so the controller will need to accommodate for that. For
1010	  example: if a controller provides 48 pins, 6 registers will be
1011	  enough to represent all pins, but the driver will assume a
1012	  register layout for 64 pins (8 registers).
1013
1014config GPIO_GW_PLD
1015	tristate "Gateworks PLD GPIO Expander"
1016	depends on OF_GPIO
1017	help
1018	  Say yes here to provide access to the Gateworks I2C PLD GPIO
1019	  Expander. This is used at least on the Cambria GW2358-4.
1020
1021config GPIO_MAX7300
1022	tristate "Maxim MAX7300 GPIO expander"
1023	select GPIO_MAX730X
1024	help
1025	  GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
1026
1027config GPIO_MAX732X
1028	tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
1029	help
1030	  Say yes here to support the MAX7319, MAX7320-7327 series of I2C
1031	  Port Expanders. Each IO port on these chips has a fixed role of
1032	  Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
1033	  Input and Output (designed by 'P'). The combinations are listed
1034	  below:
1035
1036	  8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
1037	                max7322 (4I4O), max7323 (4P4O)
1038
1039	  16 bits:      max7324 (8I8O), max7325 (8P8O),
1040	                max7326 (4I12O), max7327 (4P12O)
1041
1042	  Board setup code must specify the model to use, and the start
1043	  number for these GPIOs.
1044
1045config GPIO_MAX732X_IRQ
1046	bool "Interrupt controller support for MAX732x"
1047	depends on GPIO_MAX732X=y
1048	select GPIOLIB_IRQCHIP
1049	help
1050	  Say yes here to enable the max732x to be used as an interrupt
1051	  controller. It requires the driver to be built in the kernel.
1052
1053config GPIO_PCA953X
1054	tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
1055	select REGMAP_I2C
1056	help
1057	  Say yes here to provide access to several register-oriented
1058	  SMBus I/O expanders, made mostly by NXP or TI.  Compatible
1059	  models include:
1060
1061	  4 bits:       pca9536, pca9537
1062
1063	  8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
1064	                pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
1065
1066	  16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
1067	                tca6416
1068
1069	  24 bits:      tca6424
1070
1071	  40 bits:      pca9505, pca9698
1072
1073config GPIO_PCA953X_IRQ
1074	bool "Interrupt controller support for PCA953x"
1075	depends on GPIO_PCA953X
1076	select GPIOLIB_IRQCHIP
1077	help
1078	  Say yes here to enable the pca953x to be used as an interrupt
1079	  controller.
1080
1081config GPIO_PCA9570
1082	tristate "PCA9570 4-Bit I2C GPO expander"
1083	help
1084	  Say yes here to enable the GPO driver for the NXP PCA9570 chip.
1085
1086	  To compile this driver as a module, choose M here: the module will
1087	  be called gpio-pca9570.
1088
1089config GPIO_PCF857X
1090	tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
1091	select GPIOLIB_IRQCHIP
1092	select IRQ_DOMAIN
1093	help
1094	  Say yes here to provide access to most "quasi-bidirectional" I2C
1095	  GPIO expanders used for additional digital outputs or inputs.
1096	  Most of these parts are from NXP, though TI is a second source for
1097	  some of them.  Compatible models include:
1098
1099	  8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
1100	            pca9670, pca9672, pca9674, pca9674a,
1101	            max7328, max7329
1102
1103	  16 bits:  pcf8575, pcf8575c, pca8575,
1104	            pca9671, pca9673, pca9675
1105
1106	  Your board setup code will need to declare the expanders in
1107	  use, and assign numbers to the GPIOs they expose.  Those GPIOs
1108	  can then be used from drivers and other kernel code, just like
1109	  other GPIOs, but only accessible from task contexts.
1110
1111	  This driver provides an in-kernel interface to those GPIOs using
1112	  platform-neutral GPIO calls.
1113
1114config GPIO_TPIC2810
1115	tristate "TPIC2810 8-Bit I2C GPO expander"
1116	help
1117	  Say yes here to enable the GPO driver for the TI TPIC2810 chip.
1118
1119	  To compile this driver as a module, choose M here: the module will
1120	  be called gpio-tpic2810.
1121
1122config GPIO_TS4900
1123	tristate "Technologic Systems FPGA I2C GPIO"
1124	depends on SOC_IMX6 || COMPILE_TEST
1125	select REGMAP_I2C
1126	help
1127	  Say yes here to enabled the GPIO driver for Technologic's FPGA core.
1128	  Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
1129
1130endmenu
1131
1132menu "MFD GPIO expanders"
1133
1134config GPIO_ADP5520
1135	tristate "GPIO Support for ADP5520 PMIC"
1136	depends on PMIC_ADP5520
1137	help
1138	  This option enables support for on-chip GPIO found
1139	  on Analog Devices ADP5520 PMICs.
1140
1141config GPIO_ALTERA_A10SR
1142	tristate "Altera Arria10 System Resource GPIO"
1143	depends on MFD_ALTERA_A10SR
1144	help
1145	  Driver for Arria10 Development Kit GPIO expansion which
1146	  includes reads of pushbuttons and DIP switches as well
1147	  as writes to LEDs.
1148
1149config GPIO_ARIZONA
1150	tristate "Wolfson Microelectronics Arizona class devices"
1151	depends on MFD_ARIZONA
1152	help
1153	  Support for GPIOs on Wolfson Arizona class devices.
1154
1155config GPIO_BD71815
1156	tristate "ROHM BD71815 PMIC GPIO support"
1157	depends on MFD_ROHM_BD71828
1158	help
1159	  Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs
1160	  available on the ROHM PMIC.
1161
1162	  This driver can also be built as a module. If so, the module
1163	  will be called gpio-bd71815.
1164
1165config GPIO_BD71828
1166	tristate "ROHM BD71828 GPIO support"
1167	depends on MFD_ROHM_BD71828
1168	help
1169	  Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs
1170	  available on the ROHM PMIC in total. The GPIOs are limited to
1171	  outputs only and pins must be configured to GPIO outputs by
1172	  OTP. Enable this only if you want to use these pins as outputs.
1173
1174	  This driver can also be built as a module. If so, the module
1175	  will be called gpio-bd71828.
1176
1177config GPIO_BD9571MWV
1178	tristate "ROHM BD9571 GPIO support"
1179	depends on MFD_BD9571MWV
1180	help
1181	  Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
1182	  available on the ROHM PMIC in total, both of which can also
1183	  generate interrupts.
1184
1185	  This driver can also be built as a module. If so, the module
1186	  will be called gpio-bd9571mwv.
1187
1188config GPIO_CRYSTAL_COVE
1189	tristate "GPIO support for Crystal Cove PMIC"
1190	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1191	select GPIOLIB_IRQCHIP
1192	help
1193	  Support for GPIO pins on Crystal Cove PMIC.
1194
1195	  Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC
1196	  inside.
1197
1198	  This driver can also be built as a module. If so, the module will be
1199	  called gpio-crystalcove.
1200
1201config GPIO_CS5535
1202	tristate "AMD CS5535/CS5536 GPIO support"
1203	depends on X86 || MIPS || COMPILE_TEST
1204	depends on MFD_CS5535
1205	help
1206	  The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1207	  can be used for quite a number of things.  The CS5535/6 is found on
1208	  AMD Geode and Lemote Yeeloong devices.
1209
1210	  If unsure, say N.
1211
1212config GPIO_DA9052
1213	tristate "Dialog DA9052 GPIO"
1214	depends on PMIC_DA9052
1215	help
1216	  Say yes here to enable the GPIO driver for the DA9052 chip.
1217
1218config GPIO_DA9055
1219	tristate "Dialog Semiconductor DA9055 GPIO"
1220	depends on MFD_DA9055
1221	help
1222	  Say yes here to enable the GPIO driver for the DA9055 chip.
1223
1224	  The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1225	  be controlled by this driver.
1226
1227	  If driver is built as a module it will be called gpio-da9055.
1228
1229config GPIO_DLN2
1230	tristate "Diolan DLN2 GPIO support"
1231	depends on MFD_DLN2
1232	select GPIOLIB_IRQCHIP
1233
1234	help
1235	  Select this option to enable GPIO driver for the Diolan DLN2
1236	  board.
1237
1238	  This driver can also be built as a module. If so, the module
1239	  will be called gpio-dln2.
1240
1241config HTC_EGPIO
1242	bool "HTC EGPIO support"
1243	depends on ARM
1244	help
1245	  This driver supports the CPLD egpio chip present on
1246	  several HTC phones.  It provides basic support for input
1247	  pins, output pins, and IRQs.
1248
1249config GPIO_JANZ_TTL
1250	tristate "Janz VMOD-TTL Digital IO Module"
1251	depends on MFD_JANZ_CMODIO
1252	help
1253	  This enables support for the Janz VMOD-TTL Digital IO module.
1254	  This driver provides support for driving the pins in output
1255	  mode only. Input mode is not supported.
1256
1257config GPIO_KEMPLD
1258	tristate "Kontron ETX / COMexpress GPIO"
1259	depends on MFD_KEMPLD
1260	help
1261	  This enables support for the PLD GPIO interface on some Kontron ETX
1262	  and COMexpress (ETXexpress) modules.
1263
1264	  This driver can also be built as a module. If so, the module will be
1265	  called gpio-kempld.
1266
1267config GPIO_LP3943
1268	tristate "TI/National Semiconductor LP3943 GPIO expander"
1269	depends on MFD_LP3943
1270	help
1271	  GPIO driver for LP3943 MFD.
1272	  LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1273	  Open drain outputs are required for this usage.
1274
1275config GPIO_LP873X
1276	tristate "TI LP873X GPO"
1277	depends on MFD_TI_LP873X
1278	help
1279	  This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1280	  on LP873X PMICs.
1281
1282	  This driver can also be built as a module. If so, the module will be
1283	  called gpio-lp873x.
1284
1285config GPIO_LP87565
1286	tristate "TI LP87565 GPIO"
1287	depends on MFD_TI_LP87565
1288	help
1289	  This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1290	  on LP87565 PMICs.
1291
1292	  This driver can also be built as a module. If so, the module will be
1293	  called gpio-lp87565.
1294
1295config GPIO_MADERA
1296	tristate "Cirrus Logic Madera class codecs"
1297	depends on PINCTRL_MADERA
1298	help
1299	  Support for GPIOs on Cirrus Logic Madera class codecs.
1300
1301config GPIO_MAX77620
1302	tristate "GPIO support for PMIC MAX77620 and MAX20024"
1303	depends on MFD_MAX77620
1304	select GPIOLIB_IRQCHIP
1305	help
1306	  GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1307	  MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1308	  driver also provides interrupt support for each of the GPIOs.
1309	  Say yes here to enable the max77620 to be used as GPIO controller.
1310
1311config GPIO_MAX77650
1312	tristate "Maxim MAX77650/77651 GPIO support"
1313	depends on MFD_MAX77650
1314	help
1315	  GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1316	  These chips have a single pin that can be configured as GPIO.
1317
1318config GPIO_PALMAS
1319	bool "TI PALMAS series PMICs GPIO"
1320	depends on MFD_PALMAS
1321	help
1322	  Select this option to enable GPIO driver for the TI PALMAS
1323	  series chip family.
1324
1325config GPIO_RC5T583
1326	bool "RICOH RC5T583 GPIO"
1327	depends on MFD_RC5T583
1328	help
1329	  Select this option to enable GPIO driver for the Ricoh RC5T583
1330	  chip family.
1331	  This driver provides the support for driving/reading the GPIO pins
1332	  of RC5T583 device through standard GPIO library.
1333
1334config GPIO_SL28CPLD
1335	tristate "Kontron sl28cpld GPIO support"
1336	depends on MFD_SL28CPLD || COMPILE_TEST
1337	select GPIO_REGMAP
1338	select GPIOLIB_IRQCHIP
1339	select REGMAP_IRQ
1340	help
1341	  This enables support for the GPIOs found on the Kontron sl28 CPLD.
1342
1343	  This driver can also be built as a module. If so, the module will be
1344	  called gpio-sl28cpld.
1345
1346config GPIO_STMPE
1347	bool "STMPE GPIOs"
1348	depends on MFD_STMPE
1349	depends on OF_GPIO
1350	select GPIOLIB_IRQCHIP
1351	help
1352	  This enables support for the GPIOs found on the STMPE I/O
1353	  Expanders.
1354
1355config GPIO_TC3589X
1356	bool "TC3589X GPIOs"
1357	depends on MFD_TC3589X
1358	depends on OF_GPIO
1359	select GPIOLIB_IRQCHIP
1360	help
1361	  This enables support for the GPIOs found on the TC3589X
1362	  I/O Expander.
1363
1364config GPIO_TIMBERDALE
1365	bool "Support for timberdale GPIO IP"
1366	depends on MFD_TIMBERDALE
1367	help
1368	Add support for the GPIO IP in the timberdale FPGA.
1369
1370config GPIO_TN48M_CPLD
1371	tristate "Delta Networks TN48M switch CPLD GPIO driver"
1372	depends on MFD_TN48M_CPLD
1373	select GPIO_REGMAP
1374	help
1375	  This enables support for the GPIOs found on the Delta
1376	  Networks TN48M switch Lattice CPLD. It provides 12 pins in total,
1377	  they are input-only or output-only type.
1378
1379	  This driver can also be built as a module. If so, the
1380	  module will be called gpio-tn48m.
1381
1382config GPIO_TPS65086
1383	tristate "TI TPS65086 GPO"
1384	depends on MFD_TPS65086
1385	help
1386	  This driver supports the GPO on TI TPS65086x PMICs.
1387
1388config GPIO_TPS65218
1389	tristate "TPS65218 GPIO"
1390	depends on MFD_TPS65218
1391	help
1392	  Select this option to enable GPIO driver for the TPS65218
1393	  chip family.
1394
1395config GPIO_TPS6586X
1396	bool "TPS6586X GPIO"
1397	depends on MFD_TPS6586X
1398	help
1399	  Select this option to enable GPIO driver for the TPS6586X
1400	  chip family.
1401
1402config GPIO_TPS65910
1403	bool "TPS65910 GPIO"
1404	depends on MFD_TPS65910
1405	help
1406	  Select this option to enable GPIO driver for the TPS65910
1407	  chip family.
1408
1409config GPIO_TPS65912
1410	tristate "TI TPS65912 GPIO"
1411	depends on MFD_TPS65912
1412	help
1413	  This driver supports TPS65912 GPIO chip.
1414
1415config GPIO_TPS68470
1416	tristate "TPS68470 GPIO"
1417	depends on INTEL_SKL_INT3472
1418	help
1419	  Select this option to enable GPIO driver for the TPS68470
1420	  chip family.
1421	  There are 7 GPIOs and few sensor-related GPIOs supported
1422	  by the TPS68470. While the 7 GPIOs can be configured as
1423	  input or output as appropriate, the sensor related GPIOs
1424	  are "output only" GPIOs.
1425
1426config GPIO_TQMX86
1427	tristate "TQ-Systems QTMX86 GPIO"
1428	depends on MFD_TQMX86 || COMPILE_TEST
1429	depends on HAS_IOPORT_MAP
1430	select GPIOLIB_IRQCHIP
1431	help
1432	  This driver supports GPIO on the TQMX86 IO controller.
1433
1434config GPIO_TWL4030
1435	tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1436	depends on TWL4030_CORE
1437	help
1438	  Say yes here to access the GPIO signals of various multi-function
1439	  power management chips from Texas Instruments.
1440
1441config GPIO_TWL6040
1442	tristate "TWL6040 GPO"
1443	depends on TWL6040_CORE
1444	help
1445	  Say yes here to access the GPO signals of twl6040
1446	  audio chip from Texas Instruments.
1447
1448config GPIO_UCB1400
1449	tristate "Philips UCB1400 GPIO"
1450	depends on UCB1400_CORE
1451	help
1452	  This enables support for the Philips UCB1400 GPIO pins.
1453	  The UCB1400 is an AC97 audio codec.
1454
1455config GPIO_WHISKEY_COVE
1456	tristate "GPIO support for Whiskey Cove PMIC"
1457	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1458	select GPIOLIB_IRQCHIP
1459	help
1460	  Support for GPIO pins on Whiskey Cove PMIC.
1461
1462	  Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC
1463	  inside.
1464
1465	  This driver can also be built as a module. If so, the module will be
1466	  called gpio-wcove.
1467
1468config GPIO_WM831X
1469	tristate "WM831x GPIOs"
1470	depends on MFD_WM831X
1471	help
1472	  Say yes here to access the GPIO signals of WM831x power management
1473	  chips from Wolfson Microelectronics.
1474
1475config GPIO_WM8350
1476	tristate "WM8350 GPIOs"
1477	depends on MFD_WM8350
1478	help
1479	  Say yes here to access the GPIO signals of WM8350 power management
1480	  chips from Wolfson Microelectronics.
1481
1482config GPIO_WM8994
1483	tristate "WM8994 GPIOs"
1484	depends on MFD_WM8994
1485	help
1486	  Say yes here to access the GPIO signals of WM8994 audio hub
1487	  CODECs from Wolfson Microelectronics.
1488
1489endmenu
1490
1491menu "PCI GPIO expanders"
1492	depends on PCI
1493
1494config GPIO_AMD8111
1495	tristate "AMD 8111 GPIO driver"
1496	depends on X86 || COMPILE_TEST
1497	depends on HAS_IOPORT_MAP
1498	help
1499	  The AMD 8111 southbridge contains 32 GPIO pins which can be used.
1500
1501	  Note that usually system firmware/ACPI handles GPIO pins on their
1502	  own and users might easily break their systems with uncareful usage
1503	  of this driver!
1504
1505	  If unsure, say N
1506
1507config GPIO_BT8XX
1508	tristate "BT8XX GPIO abuser"
1509	depends on VIDEO_BT848=n
1510	help
1511	  The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1512	  as a cheap PCI GPIO card.
1513
1514	  This chip can be found on Miro, Hauppauge and STB TV-cards.
1515
1516	  The card needs to be physically altered for using it as a
1517	  GPIO card. For more information on how to build a GPIO card
1518	  from a BT8xx TV card, see the documentation file at
1519	  Documentation/driver-api/gpio/bt8xxgpio.rst
1520
1521	  If unsure, say N.
1522
1523config GPIO_MERRIFIELD
1524	tristate "Intel Merrifield GPIO support"
1525	depends on X86_INTEL_MID
1526	select GPIOLIB_IRQCHIP
1527	help
1528	  Say Y here to support Intel Merrifield GPIO.
1529
1530config GPIO_MLXBF
1531	tristate "Mellanox BlueField SoC GPIO"
1532	depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1533	select GPIO_GENERIC
1534	help
1535	  Say Y here if you want GPIO support on Mellanox BlueField SoC.
1536
1537config GPIO_MLXBF2
1538	tristate "Mellanox BlueField 2 SoC GPIO"
1539	depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1540	select GPIO_GENERIC
1541	help
1542	  Say Y here if you want GPIO support on Mellanox BlueField 2 SoC.
1543
1544config GPIO_ML_IOH
1545	tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1546	depends on X86 || COMPILE_TEST
1547	select GENERIC_IRQ_CHIP
1548	help
1549	  ML7213 is companion chip for Intel Atom E6xx series.
1550	  This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output
1551	  Hub) which is for IVI (In-Vehicle Infotainment) use.
1552	  This driver can access the IOH's GPIO device.
1553
1554config GPIO_PCH
1555	tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO"
1556	depends on X86_32 || MIPS || COMPILE_TEST
1557	select GENERIC_IRQ_CHIP
1558	help
1559	  This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff,
1560	  which is an IOH (Input/Output Hub) for x86 embedded processor.
1561	  This driver can access PCH GPIO device.
1562
1563	  This driver also can be used for LAPIS Semiconductor IOH (Input/
1564	  Output Hub), ML7223 and ML7831.
1565	  ML7223 IOH is for MP (Media Phone) use.
1566	  ML7831 IOH is for general purpose use.
1567	  ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1568	  ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1569
1570config GPIO_PCI_IDIO_16
1571	tristate "ACCES PCI-IDIO-16 GPIO support"
1572	select GPIOLIB_IRQCHIP
1573	help
1574	  Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1575	  generated when any of the inputs change state (low to high or high to
1576	  low). Input filter control is not supported by this driver, and the
1577	  input filters are deactivated by this driver.
1578
1579config GPIO_PCIE_IDIO_24
1580	tristate "ACCES PCIe-IDIO-24 GPIO support"
1581	select GPIOLIB_IRQCHIP
1582	help
1583	  Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1584	  PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1585	  when any of the inputs change state (low to high or high to low).
1586	  Input filter control is not supported by this driver, and the input
1587	  filters are deactivated by this driver.
1588
1589config GPIO_RDC321X
1590	tristate "RDC R-321x GPIO support"
1591	select MFD_CORE
1592	select MFD_RDC321X
1593	help
1594	  Support for the RDC R321x SoC GPIOs over southbridge
1595	  PCI configuration space.
1596
1597config GPIO_SODAVILLE
1598	bool "Intel Sodaville GPIO support"
1599	depends on X86 && OF
1600	select GPIO_GENERIC
1601	select GENERIC_IRQ_CHIP
1602	help
1603	  Say Y here to support Intel Sodaville GPIO.
1604
1605endmenu
1606
1607menu "SPI GPIO expanders"
1608	depends on SPI_MASTER
1609
1610config GPIO_74X164
1611	tristate "74x164 serial-in/parallel-out 8-bits shift register"
1612	depends on OF_GPIO
1613	help
1614	  Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1615	  shift registers. This driver can be used to provide access
1616	  to more GPIO outputs.
1617
1618config GPIO_MAX3191X
1619	tristate "Maxim MAX3191x industrial serializer"
1620	select CRC8
1621	help
1622	  GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1623	  MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1624	  chip to make 8 digital 24V inputs available via SPI.  Supports
1625	  CRC checksums to guard against electromagnetic interference,
1626	  as well as undervoltage and overtemperature detection.
1627
1628config GPIO_MAX7301
1629	tristate "Maxim MAX7301 GPIO expander"
1630	select GPIO_MAX730X
1631	help
1632	  GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1633
1634config GPIO_MC33880
1635	tristate "Freescale MC33880 high-side/low-side switch"
1636	help
1637	  SPI driver for Freescale MC33880 high-side/low-side switch.
1638	  This provides GPIO interface supporting inputs and outputs.
1639
1640config GPIO_PISOSR
1641	tristate "Generic parallel-in/serial-out shift register"
1642	help
1643	  GPIO driver for SPI compatible parallel-in/serial-out shift
1644	  registers. These are input only devices.
1645
1646config GPIO_XRA1403
1647	tristate "EXAR XRA1403 16-bit GPIO expander"
1648	select REGMAP_SPI
1649	help
1650	  GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1651
1652config GPIO_MOXTET
1653	tristate "Turris Mox Moxtet bus GPIO expander"
1654	depends on MOXTET
1655	help
1656	  Say yes here if you are building for the Turris Mox router.
1657	  This is the driver needed for configuring the GPIOs via the Moxtet
1658	  bus. For example the Mox module with SFP cage needs this driver
1659	  so that phylink can use corresponding GPIOs.
1660
1661endmenu
1662
1663menu "USB GPIO expanders"
1664	depends on USB
1665
1666config GPIO_VIPERBOARD
1667	tristate "Viperboard GPIO a & b support"
1668	depends on MFD_VIPERBOARD
1669	help
1670	  Say yes here to access the GPIO signals of Nano River
1671	  Technologies Viperboard. There are two GPIO chips on the
1672	  board: gpioa and gpiob.
1673	  See viperboard API specification and Nano
1674	  River Tech's viperboard.h for detailed meaning
1675	  of the module parameters.
1676
1677endmenu
1678
1679menu "Virtual GPIO drivers"
1680
1681config GPIO_AGGREGATOR
1682	tristate "GPIO Aggregator"
1683	help
1684	  Say yes here to enable the GPIO Aggregator, which provides a way to
1685	  aggregate existing GPIO lines into a new virtual GPIO chip.
1686	  This can serve the following purposes:
1687	    - Assign permissions for a collection of GPIO lines to a user,
1688	    - Export a collection of GPIO lines to a virtual machine,
1689	    - Provide a generic driver for a GPIO-operated device in an
1690	      industrial control context, to be operated from userspace using
1691	      the GPIO chardev interface.
1692
1693config GPIO_MOCKUP
1694	tristate "GPIO Testing Driver"
1695	select IRQ_SIM
1696	help
1697	  This enables GPIO Testing driver, which provides a way to test GPIO
1698	  subsystem through sysfs (or char device) and debugfs.
1699	  User could use it through the script in
1700	  tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1701	  it.
1702
1703config GPIO_VIRTIO
1704	tristate "VirtIO GPIO support"
1705	depends on VIRTIO
1706	select GPIOLIB_IRQCHIP
1707	help
1708	  Say Y here to enable guest support for virtio-based GPIO controllers.
1709
1710	  These virtual GPIOs can be routed to real GPIOs or attached to
1711	  simulators on the host (like QEMU).
1712
1713config GPIO_SIM
1714	tristate "GPIO Simulator Module"
1715	select IRQ_SIM
1716	select CONFIGFS_FS
1717	help
1718	  This enables the GPIO simulator - a configfs-based GPIO testing
1719	  driver.
1720
1721endmenu
1722
1723endif
1724