1# SPDX-License-Identifier: GPL-2.0-only
2#
3# GPIO infrastructure and drivers
4#
5
6menuconfig GPIOLIB
7	bool "GPIO Support"
8	help
9	  This enables GPIO support through the generic GPIO library.
10	  You only need to enable this if you also want to enable
11	  one or more of the GPIO drivers below.
12
13	  If unsure, say N.
14
15if GPIOLIB
16
17config GPIOLIB_FASTPATH_LIMIT
18	int "Maximum number of GPIOs for fast path"
19	range 32 512
20	default 512
21	help
22	  This adjusts the point at which certain APIs will switch from
23	  using a stack allocated buffer to a dynamically allocated buffer.
24
25	  You shouldn't need to change this unless you really need to
26	  optimize either stack space or performance. Change this carefully
27	  since setting an incorrect value could cause stack corruption.
28
29config OF_GPIO
30	def_bool y
31	depends on OF
32	depends on HAS_IOMEM
33
34config GPIO_ACPI
35	def_bool y
36	depends on ACPI
37
38config GPIOLIB_IRQCHIP
39	select IRQ_DOMAIN
40	bool
41
42config OF_GPIO_MM_GPIOCHIP
43	bool
44	help
45	  This adds support for the legacy 'struct of_mm_gpio_chip' interface
46	  from PowerPC. Existing drivers using this interface need to select
47	  this symbol, but new drivers should use the generic gpio-regmap
48	  infrastructure instead.
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	select 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
112config GPIO_IDIO_16
113	tristate
114	select REGMAP_IRQ
115	select GPIOLIB_IRQCHIP
116	select GPIO_REGMAP
117	help
118	  Enables support for the idio-16 library functions. The idio-16 library
119	  provides functions to facilitate communication with devices within the
120	  ACCES IDIO-16 family such as the 104-IDIO-16 and the PCI-IDIO-16.
121
122	  If built as a module its name will be gpio-idio-16.
123
124menu "Memory mapped GPIO drivers"
125	depends on HAS_IOMEM
126
127config GPIO_74XX_MMIO
128	tristate "GPIO driver for 74xx-ICs with MMIO access"
129	depends on OF_GPIO
130	select GPIO_GENERIC
131	help
132	  Say yes here to support GPIO functionality for 74xx-compatible ICs
133	  with MMIO access. Compatible models include:
134	    1 bit:	741G125 (Input), 741G74 (Output)
135	    2 bits:	742G125 (Input), 7474 (Output)
136	    4 bits:	74125 (Input), 74175 (Output)
137	    6 bits:	74365 (Input), 74174 (Output)
138	    8 bits:	74244 (Input), 74273 (Output)
139	    16 bits:	741624 (Input), 7416374 (Output)
140
141config GPIO_ALTERA
142	tristate "Altera GPIO"
143	depends on OF_GPIO
144	select GPIOLIB_IRQCHIP
145	select OF_GPIO_MM_GPIOCHIP
146	help
147	  Say Y or M here to build support for the Altera PIO device.
148
149	  If driver is built as a module it will be called gpio-altera.
150
151config GPIO_AMDPT
152	tristate "AMD Promontory GPIO support"
153	depends on ACPI
154	select GPIO_GENERIC
155	help
156	  Driver for GPIO functionality on Promontory IOHub.
157	  Requires ACPI ASL code to enumerate as a platform device.
158
159config GPIO_ASPEED
160	tristate "Aspeed GPIO support"
161	depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
162	select GPIOLIB_IRQCHIP
163	help
164	  Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
165
166config GPIO_ASPEED_SGPIO
167	bool "Aspeed SGPIO support"
168	depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
169	select GPIO_GENERIC
170	select GPIOLIB_IRQCHIP
171	help
172	  Say Y here to support Aspeed AST2500 SGPIO functionality.
173
174config GPIO_ATH79
175	tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
176	default y if ATH79
177	depends on ATH79 || COMPILE_TEST
178	select GPIO_GENERIC
179	select GPIOLIB_IRQCHIP
180	help
181	  Select this option to enable GPIO driver for
182	  Atheros AR71XX/AR724X/AR913X SoC devices.
183
184config GPIO_RASPBERRYPI_EXP
185	tristate "Raspberry Pi 3 GPIO Expander"
186	default RASPBERRYPI_FIRMWARE
187	depends on OF_GPIO
188	# Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
189	# happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
190	depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
191	help
192	  Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
193	  the firmware mailbox to communicate with VideoCore on BCM283x chips.
194
195config GPIO_BCM_KONA
196	bool "Broadcom Kona GPIO"
197	depends on ARCH_BCM_MOBILE || COMPILE_TEST
198	help
199	  Turn on GPIO support for Broadcom "Kona" chips.
200
201config GPIO_BCM_XGS_IPROC
202	tristate "BRCM XGS iProc GPIO support"
203	depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST)
204	select GPIO_GENERIC
205	select GPIOLIB_IRQCHIP
206	default ARCH_BCM_IPROC
207	help
208	  Say yes here to enable GPIO support for Broadcom XGS iProc SoCs.
209
210config GPIO_BRCMSTB
211	tristate "BRCMSTB GPIO support"
212	default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
213	depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
214	select GPIO_GENERIC
215	select IRQ_DOMAIN
216	help
217	  Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
218
219config GPIO_CADENCE
220	tristate "Cadence GPIO support"
221	depends on OF_GPIO
222	select GPIO_GENERIC
223	select GPIOLIB_IRQCHIP
224	help
225	  Say yes here to enable support for Cadence GPIO controller.
226
227config GPIO_CLPS711X
228	tristate "CLPS711X GPIO support"
229	depends on ARCH_CLPS711X || COMPILE_TEST
230	select GPIO_GENERIC
231	help
232	  Say yes here to support GPIO on CLPS711X SoCs.
233
234config GPIO_DAVINCI
235	tristate "TI Davinci/Keystone GPIO support"
236	default y if ARCH_DAVINCI
237	depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3)
238	help
239	  Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
240
241config GPIO_DWAPB
242	tristate "Synopsys DesignWare APB GPIO driver"
243	select GPIO_GENERIC
244	select GPIOLIB_IRQCHIP
245	help
246	  Say Y or M here to build support for the Synopsys DesignWare APB
247	  GPIO block.
248
249config GPIO_EIC_SPRD
250	tristate "Spreadtrum EIC support"
251	depends on ARCH_SPRD || COMPILE_TEST
252	depends on OF_GPIO
253	select GPIOLIB_IRQCHIP
254	help
255	  Say yes here to support Spreadtrum EIC device.
256
257config GPIO_EM
258	tristate "Emma Mobile GPIO"
259	depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
260	help
261	  Say yes here to support GPIO on Renesas Emma Mobile SoCs.
262
263config GPIO_EN7523
264	tristate "Airoha GPIO support"
265	depends on ARCH_AIROHA
266	default ARCH_AIROHA
267	select GPIO_GENERIC
268	select GPIOLIB_IRQCHIP
269	help
270	  Say Y or M here to support the GPIO controller block on the
271	  Airoha EN7523 SoC. It supports two banks of 32 GPIOs.
272
273config GPIO_EP93XX
274	def_bool y
275	depends on ARCH_EP93XX
276	select GPIO_GENERIC
277	select GPIOLIB_IRQCHIP
278
279config GPIO_EXAR
280	tristate "Support for GPIO pins on XR17V352/354/358"
281	depends on SERIAL_8250_EXAR
282	select REGMAP_MMIO
283	help
284	  Selecting this option will enable handling of GPIO pins present
285	  on Exar XR17V352/354/358 chips.
286
287config GPIO_GE_FPGA
288	bool "GE FPGA based GPIO"
289	depends on GE_FPGA || COMPILE_TEST
290	select GPIO_GENERIC
291	help
292	  Support for common GPIO functionality provided on some GE Single Board
293	  Computers.
294
295	  This driver provides basic support (configure as input or output, read
296	  and write pin state) for GPIO implemented in a number of GE single
297	  board computers.
298
299config GPIO_FTGPIO010
300	bool "Faraday FTGPIO010 GPIO"
301	depends on OF_GPIO
302	select GPIO_GENERIC
303	select GPIOLIB_IRQCHIP
304	default (ARCH_GEMINI || ARCH_MOXART)
305	help
306	  Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
307	  Cortina systems Gemini platforms, Moxa ART and others.
308
309config GPIO_GENERIC_PLATFORM
310	tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
311	select GPIO_GENERIC
312	help
313	  Say yes here to support basic platform_device memory-mapped GPIO controllers.
314
315config GPIO_GRGPIO
316	tristate "Aeroflex Gaisler GRGPIO support"
317	depends on OF_GPIO
318	select GPIO_GENERIC
319	select IRQ_DOMAIN
320	help
321	  Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
322	  VHDL IP core library.
323
324config GPIO_HISI
325	tristate "HiSilicon GPIO controller driver"
326	depends on ARM64 || COMPILE_TEST
327	select GPIO_GENERIC
328	select GPIOLIB_IRQCHIP
329	help
330	  Say Y or M here to build support for the HiSilicon GPIO controller
331	  driver GPIO block.
332	  This GPIO controller supports double-edge interrupt and multi-core
333	  concurrent access.
334
335config GPIO_HLWD
336	tristate "Nintendo Wii (Hollywood) GPIO"
337	depends on OF_GPIO
338	select GPIO_GENERIC
339	select GPIOLIB_IRQCHIP
340	help
341	  Select this to support the GPIO controller of the Nintendo Wii.
342
343	  If unsure, say N.
344
345config GPIO_ICH
346	tristate "Intel ICH GPIO"
347	depends on X86
348	depends on LPC_ICH
349	help
350	  Say yes here to support the GPIO functionality of a number of Intel
351	  ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
352	  ICH9, ICH10, Series 5/3400 (e.g. Ibex Peak), Series 6/C200 (e.g.
353	  Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
354
355	  If unsure, say N.
356
357config GPIO_IMX_SCU
358       def_bool y
359       depends on IMX_SCU
360
361config GPIO_IXP4XX
362	bool "Intel IXP4xx GPIO"
363	depends on ARCH_IXP4XX
364	depends on OF
365	select GPIO_GENERIC
366	select GPIOLIB_IRQCHIP
367	select IRQ_DOMAIN_HIERARCHY
368	help
369	  Say yes here to support the GPIO functionality of a number of Intel
370	  IXP4xx series of chips.
371
372	  If unsure, say N.
373
374config GPIO_LOGICVC
375	tristate "Xylon LogiCVC GPIO support"
376	depends on MFD_SYSCON && OF
377	help
378	  Say yes here to support GPIO functionality of the Xylon LogiCVC
379	  programmable logic block.
380
381config GPIO_LOONGSON
382	bool "Loongson-2/3 GPIO support"
383	depends on CPU_LOONGSON2EF || CPU_LOONGSON64
384	help
385	  Driver for GPIO functionality on Loongson-2F/3A/3B processors.
386
387config GPIO_LOONGSON_64BIT
388	tristate "Loongson 64 bit GPIO support"
389	depends on LOONGARCH || COMPILE_TEST
390	depends on OF_GPIO
391	select GPIO_GENERIC
392	help
393	  Say yes here to support the GPIO functionality of a number of
394	  Loongson series of chips. The Loongson GPIO controller supports
395	  up to 60 GPIOS in total, 4 of which are dedicated GPIO pins, and
396	  the remaining 56 are reused with other functions, with edge or
397	  level triggered interrupts.
398
399config GPIO_LPC18XX
400	tristate "NXP LPC18XX/43XX GPIO support"
401	default y if ARCH_LPC18XX
402	depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
403	select IRQ_DOMAIN_HIERARCHY
404	help
405	  Select this option to enable GPIO driver for
406	  NXP LPC18XX/43XX devices.
407
408config GPIO_LPC32XX
409	tristate "NXP LPC32XX GPIO support"
410	depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST)
411	help
412	  Select this option to enable GPIO driver for
413	  NXP LPC32XX devices.
414
415config GPIO_MB86S7X
416	tristate "GPIO support for Fujitsu MB86S7x Platforms"
417	help
418	  Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
419
420config GPIO_MENZ127
421	tristate "MEN 16Z127 GPIO support"
422	depends on MCB
423	select GPIO_GENERIC
424	help
425	  Say yes here to support the MEN 16Z127 GPIO Controller.
426
427config GPIO_MM_LANTIQ
428	bool "Lantiq Memory mapped GPIOs"
429	depends on LANTIQ && SOC_XWAY
430	select OF_GPIO_MM_GPIOCHIP
431	help
432	  This enables support for memory mapped GPIOs on the External Bus Unit
433	  (EBU) found on Lantiq SoCs. The GPIOs are output only as they are
434	  created by attaching a 16-bit latch to the bus.
435
436config GPIO_MPC5200
437	def_bool y
438	depends on PPC_MPC52xx
439	select OF_GPIO_MM_GPIOCHIP
440
441config GPIO_MPC8XXX
442	bool "MPC512x/MPC8xxx/QorIQ GPIO support"
443	depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
444		   FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
445		   COMPILE_TEST
446	select GPIO_GENERIC
447	select IRQ_DOMAIN
448	help
449	  Say Y here if you're going to use hardware that connects to the
450	  MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
451
452config GPIO_MT7621
453	bool "Mediatek MT7621 GPIO Support"
454	depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
455	depends on OF_GPIO
456	select GPIO_GENERIC
457	select GPIOLIB_IRQCHIP
458	help
459	  Say yes here to support the Mediatek MT7621 SoC GPIO device.
460
461config GPIO_MVEBU
462	def_bool y
463	depends on PLAT_ORION || ARCH_MVEBU
464	depends on OF_GPIO
465	select GENERIC_IRQ_CHIP
466	select REGMAP_MMIO
467
468config GPIO_MXC
469	tristate "i.MX GPIO support"
470	depends on ARCH_MXC || COMPILE_TEST
471	select GPIO_GENERIC
472	select GENERIC_IRQ_CHIP
473
474config GPIO_MXS
475	bool "Freescale MXS GPIO support" if COMPILE_TEST
476	depends on ARCH_MXS || COMPILE_TEST
477	default y if ARCH_MXS
478	select GPIO_GENERIC
479	select GENERIC_IRQ_CHIP
480
481config GPIO_OCTEON
482	tristate "Cavium OCTEON GPIO"
483	depends on CAVIUM_OCTEON_SOC
484	default y
485	help
486	  Say yes here to support the on-chip GPIO lines on the OCTEON
487	  family of SOCs.
488
489config GPIO_OMAP
490	tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
491	default y if ARCH_OMAP
492	depends on ARM
493	select GENERIC_IRQ_CHIP
494	select GPIOLIB_IRQCHIP
495	help
496	  Say yes here to enable GPIO support for TI OMAP SoCs.
497
498config GPIO_PL061
499	tristate "PrimeCell PL061 GPIO support"
500	depends on ARM_AMBA
501	select IRQ_DOMAIN
502	select GPIOLIB_IRQCHIP
503	help
504	  Say yes here to support the PrimeCell PL061 GPIO device.
505
506config GPIO_PXA
507	bool "PXA GPIO support"
508	depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST
509	help
510	  Say yes here to support the PXA GPIO device.
511
512config GPIO_RCAR
513	tristate "Renesas R-Car and RZ/G GPIO support"
514	depends on ARCH_RENESAS || COMPILE_TEST
515	select GPIOLIB_IRQCHIP
516	help
517	  Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs.
518
519config GPIO_RDA
520	bool "RDA Micro GPIO controller support"
521	depends on ARCH_RDA || COMPILE_TEST
522	depends on OF_GPIO
523	select GPIO_GENERIC
524	select GPIOLIB_IRQCHIP
525	help
526	  Say Y here to support RDA Micro GPIO controller.
527
528config GPIO_REALTEK_OTTO
529	tristate "Realtek Otto GPIO support"
530	depends on MACH_REALTEK_RTL
531	default MACH_REALTEK_RTL
532	select GPIO_GENERIC
533	select GPIOLIB_IRQCHIP
534	help
535	  The GPIO controller on the Otto MIPS platform supports up to two
536	  banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs
537	  are grouped in four 8-bit wide ports.
538
539	  When built as a module, the module will be called realtek_otto_gpio.
540
541config GPIO_REG
542	bool
543	help
544	  A 32-bit single register GPIO fixed in/out implementation.  This
545	  can be used to represent any register as a set of GPIO signals.
546
547config GPIO_ROCKCHIP
548	tristate "Rockchip GPIO support"
549	depends on ARCH_ROCKCHIP || COMPILE_TEST
550	select GENERIC_IRQ_CHIP
551	select GPIOLIB_IRQCHIP
552	default ARCH_ROCKCHIP
553	help
554	  Say yes here to support GPIO on Rockchip SoCs.
555
556config GPIO_SAMA5D2_PIOBU
557	tristate "SAMA5D2 PIOBU GPIO support"
558	depends on MFD_SYSCON
559	depends on OF_GPIO
560	depends on ARCH_AT91 || COMPILE_TEST
561	select GPIO_SYSCON
562	help
563	  Say yes here to use the PIOBU pins as GPIOs.
564
565	  PIOBU pins on the SAMA5D2 can be used as GPIOs.
566	  The difference from regular GPIOs is that they
567	  maintain their value during backup/self-refresh.
568
569config GPIO_SIFIVE
570	tristate "SiFive GPIO support"
571	depends on OF_GPIO
572	select IRQ_DOMAIN_HIERARCHY
573	select GPIO_GENERIC
574	select GPIOLIB_IRQCHIP
575	select REGMAP_MMIO
576	help
577	  Say yes here to support the GPIO device on SiFive SoCs.
578
579config GPIO_SIOX
580	tristate "SIOX GPIO support"
581	depends on SIOX
582	select GPIOLIB_IRQCHIP
583	help
584	  Say yes here to support SIOX I/O devices. These are units connected
585	  via a SIOX bus and have a number of fixed-direction I/O lines.
586
587config GPIO_SNPS_CREG
588	bool "Synopsys GPIO via CREG (Control REGisters) driver"
589	depends on ARC || COMPILE_TEST
590	depends on OF_GPIO
591	help
592	  This driver supports GPIOs via CREG on various Synopsys SoCs.
593	  This is a single-register MMIO GPIO driver for complex cases
594	  where only several fields in register belong to GPIO lines and
595	  each GPIO line owns a field with different length and on/off value.
596
597config GPIO_SPEAR_SPICS
598	bool "ST SPEAr13xx SPI Chip Select as GPIO support"
599	depends on PLAT_SPEAR
600	select GENERIC_IRQ_CHIP
601	help
602	  Say yes here to support ST SPEAr SPI Chip Select as GPIO device.
603
604config GPIO_SPRD
605	tristate "Spreadtrum GPIO support"
606	depends on ARCH_SPRD || COMPILE_TEST
607	depends on OF_GPIO
608	select GPIOLIB_IRQCHIP
609	help
610	  Say yes here to support Spreadtrum GPIO device.
611
612config GPIO_STP_XWAY
613	bool "XWAY STP GPIOs"
614	depends on SOC_XWAY || COMPILE_TEST
615	depends on OF_GPIO
616	help
617	  This enables support for the Serial To Parallel (STP) unit found on
618	  XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
619	  that can be up to 24 bits. This peripheral is aimed at driving LEDs.
620	  Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and
621	  phy status.
622
623config GPIO_SYSCON
624	tristate "GPIO based on SYSCON"
625	depends on MFD_SYSCON && OF
626	help
627	  Say yes here to support GPIO functionality though SYSCON driver.
628
629config GPIO_TANGIER
630	tristate
631	select GPIOLIB_IRQCHIP
632	help
633	  GPIO support for Intel Tangier and compatible platforms.
634	  Currently supported:
635	   - Elkhart Lake
636	   - Merrifield
637
638	  If built as a module its name will be gpio-tangier.
639
640config GPIO_TB10X
641	bool
642	select GPIO_GENERIC
643	select GENERIC_IRQ_CHIP
644	select OF_GPIO
645
646config GPIO_TEGRA
647	tristate "NVIDIA Tegra GPIO support"
648	default ARCH_TEGRA
649	depends on ARCH_TEGRA || COMPILE_TEST
650	depends on OF_GPIO
651	select GPIOLIB_IRQCHIP
652	select IRQ_DOMAIN_HIERARCHY
653	help
654	  Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
655
656config GPIO_TEGRA186
657	tristate "NVIDIA Tegra186 GPIO support"
658	default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC
659	depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST
660	depends on OF_GPIO
661	select GPIOLIB_IRQCHIP
662	select IRQ_DOMAIN_HIERARCHY
663	help
664	  Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
665
666config GPIO_TS4800
667	tristate "TS-4800 DIO blocks and compatibles"
668	depends on OF_GPIO
669	depends on SOC_IMX51 || COMPILE_TEST
670	select GPIO_GENERIC
671	help
672	  This driver support TS-4800 FPGA GPIO controllers.
673
674config GPIO_THUNDERX
675	tristate "Cavium ThunderX/OCTEON-TX GPIO"
676	depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
677	depends on PCI_MSI
678	select GPIOLIB_IRQCHIP
679	select IRQ_DOMAIN_HIERARCHY
680	select IRQ_FASTEOI_HIERARCHY_HANDLERS
681	help
682	  Say yes here to support the on-chip GPIO lines on the ThunderX
683	  and OCTEON-TX families of SoCs.
684
685config GPIO_UNIPHIER
686	tristate "UniPhier GPIO support"
687	depends on ARCH_UNIPHIER || COMPILE_TEST
688	depends on OF_GPIO
689	select IRQ_DOMAIN_HIERARCHY
690	help
691	  Say yes here to support UniPhier GPIOs.
692
693config GPIO_VF610
694	def_bool y
695	depends on ARCH_MXC
696	select GPIOLIB_IRQCHIP
697	help
698	  Say yes here to support i.MX or Vybrid vf610 GPIOs.
699
700config GPIO_VISCONTI
701	tristate "Toshiba Visconti GPIO support"
702	depends on ARCH_VISCONTI || COMPILE_TEST
703	depends on OF_GPIO
704	select GPIOLIB_IRQCHIP
705	select GPIO_GENERIC
706	select IRQ_DOMAIN_HIERARCHY
707	help
708	  Say yes here to support GPIO on Tohisba Visconti.
709
710config GPIO_WCD934X
711	tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver"
712	depends on MFD_WCD934X && OF_GPIO
713	help
714         This driver is to support GPIO block found on the Qualcomm Technologies
715	 Inc WCD9340/WCD9341 Audio Codec.
716
717config GPIO_XGENE
718	bool "APM X-Gene GPIO controller support"
719	depends on ARM64 && OF_GPIO
720	help
721	  This driver is to support the GPIO block within the APM X-Gene SoC
722	  platform's generic flash controller. The GPIO pins are muxed with
723	  the generic flash controller's address and data pins. Say yes
724	  here to enable the GFC GPIO functionality.
725
726config GPIO_XGENE_SB
727	tristate "APM X-Gene GPIO standby controller support"
728	depends on (ARCH_XGENE || COMPILE_TEST)
729	select GPIO_GENERIC
730	select GPIOLIB_IRQCHIP
731	select IRQ_DOMAIN_HIERARCHY
732	help
733	  This driver supports the GPIO block within the APM X-Gene
734	  Standby Domain. Say yes here to enable the GPIO functionality.
735
736config GPIO_XILINX
737	tristate "Xilinx GPIO support"
738	select GPIOLIB_IRQCHIP
739	depends on OF_GPIO
740	help
741	  Say yes here to support the Xilinx FPGA GPIO device.
742
743config GPIO_XLP
744	tristate "Cavium ThunderX2 GPIO support"
745	depends on ARCH_THUNDER2 || COMPILE_TEST
746	select GPIOLIB_IRQCHIP
747	help
748	  This driver provides support for GPIO interface on Cavium's ThunderX2
749	  CN99XX SoCs (Originally from Netlogic XLP).
750
751	  If unsure, say N.
752
753config GPIO_XTENSA
754	bool "Xtensa GPIO32 support"
755	depends on XTENSA
756	depends on HAVE_XTENSA_GPIO32
757	depends on !SMP
758	help
759	  Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
760	  and EXPSTATE (output) ports.
761
762config GPIO_ZEVIO
763	bool "LSI ZEVIO SoC memory mapped GPIOs"
764	depends on ARM
765	help
766	  Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
767
768config GPIO_ZYNQ
769	tristate "Xilinx Zynq GPIO support"
770	depends on ARCH_ZYNQ || ARCH_ZYNQMP
771	select GPIOLIB_IRQCHIP
772	help
773	  Say yes here to support Xilinx Zynq GPIO controller.
774
775config GPIO_ZYNQMP_MODEPIN
776	tristate "ZynqMP ps-mode pin GPIO configuration driver"
777	depends on ZYNQMP_FIRMWARE
778	default ZYNQMP_FIRMWARE
779	help
780	  Say yes here to support the ZynqMP ps-mode pin GPIO configuration
781	  driver.
782
783	  This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE
784	  is 4-bits boot mode pins. It sets and gets the status of
785	  the ps-mode pin. Every pin can be configured as input/output.
786
787config GPIO_LOONGSON1
788	tristate "Loongson1 GPIO support"
789	depends on MACH_LOONGSON32
790	select GPIO_GENERIC
791	help
792	  Say Y or M here to support GPIO on Loongson1 SoCs.
793
794config GPIO_AMD_FCH
795	tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
796	help
797	  This option enables driver for GPIO on AMD's Fusion Controller Hub,
798	  as found on G-series SOCs (e.g. GX-412TC).
799
800	  Note: This driver doesn't register itself automatically, as it
801	  needs to be provided with platform-specific configuration.
802	  (See e.g. CONFIG_PCENGINES_APU2.)
803
804config GPIO_MSC313
805	bool "MStar MSC313 GPIO support"
806	depends on ARCH_MSTARV7
807	default ARCH_MSTARV7
808	select GPIOLIB_IRQCHIP
809	select IRQ_DOMAIN_HIERARCHY
810	help
811	  Say Y here to support the main GPIO block on MStar/SigmaStar
812	  ARMv7-based SoCs.
813
814config GPIO_IDT3243X
815	tristate "IDT 79RC3243X GPIO support"
816	depends on MIKROTIK_RB532 || COMPILE_TEST
817	select GPIO_GENERIC
818	select GPIOLIB_IRQCHIP
819	help
820	  Select this option to enable GPIO driver for
821	  IDT 79RC3243X-based devices like Mikrotik RB532.
822
823	  To compile this driver as a module, choose M here: the module will
824	  be called gpio-idt3243x.
825
826endmenu
827
828menu "Port-mapped I/O GPIO drivers"
829	depends on X86 && HAS_IOPORT # I/O space access
830
831config GPIO_VX855
832	tristate "VIA VX855/VX875 GPIO"
833	depends on PCI
834	select MFD_CORE
835	select MFD_VX855
836	help
837	  Support access to the VX855/VX875 GPIO lines through the GPIO library.
838
839	  This driver provides common support for accessing the device.
840	  Additional drivers must be enabled in order to use the
841	  functionality of the device.
842
843config GPIO_I8255
844	tristate
845	select GPIO_REGMAP
846	help
847	  Enables support for the i8255 interface library functions. The i8255
848	  interface library provides functions to facilitate communication with
849	  interfaces compatible with the venerable Intel 8255 Programmable
850	  Peripheral Interface (PPI). The Intel 8255 PPI chip was first released
851	  in the early 1970s but compatible interfaces are nowadays typically
852	  found embedded in larger VLSI processing chips and FPGA components.
853
854	  If built as a module its name will be gpio-i8255.
855
856config GPIO_104_DIO_48E
857	tristate "ACCES 104-DIO-48E GPIO support"
858	depends on PC104
859	select ISA_BUS_API
860	select REGMAP_MMIO
861	select REGMAP_IRQ
862	select GPIOLIB_IRQCHIP
863	select GPIO_I8255
864	select I8254
865	help
866	  Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
867	  104-DIO-24E). The base port addresses for the devices may be
868	  configured via the base module parameter. The interrupt line numbers
869	  for the devices may be configured via the irq module parameter.
870
871config GPIO_104_IDIO_16
872	tristate "ACCES 104-IDIO-16 GPIO support"
873	depends on PC104
874	select ISA_BUS_API
875	select REGMAP_MMIO
876	select GPIO_IDIO_16
877	help
878	  Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
879	  104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
880	  base port addresses for the devices may be configured via the base
881	  module parameter. The interrupt line numbers for the devices may be
882	  configured via the irq module parameter.
883
884config GPIO_104_IDI_48
885	tristate "ACCES 104-IDI-48 GPIO support"
886	depends on PC104
887	select ISA_BUS_API
888	select REGMAP_MMIO
889	select REGMAP_IRQ
890	select GPIOLIB_IRQCHIP
891	select GPIO_REGMAP
892	help
893	  Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
894	  104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
895	  the devices may be configured via the base module parameter. The
896	  interrupt line numbers for the devices may be configured via the irq
897	  module parameter.
898
899config GPIO_F7188X
900	tristate "Fintek and Nuvoton Super-I/O GPIO support"
901	help
902	  This option enables support for GPIOs found on Fintek Super-I/O
903	  chips F71869, F71869A, F71882FG, F71889F and F81866.
904	  As well as Nuvoton Super-I/O chip NCT6126D.
905
906	  To compile this driver as a module, choose M here: the module will
907	  be called f7188x-gpio.
908
909config GPIO_GPIO_MM
910	tristate "Diamond Systems GPIO-MM GPIO support"
911	depends on PC104
912	select ISA_BUS_API
913	select REGMAP_MMIO
914	select GPIO_I8255
915	help
916	  Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
917
918	  The Diamond Systems GPIO-MM device features 48 lines of digital I/O
919	  via the emulation of dual 82C55A PPI chips. This driver provides GPIO
920	  support for these 48 channels of digital I/O.
921
922	  The base port addresses for the devices may be configured via the base
923	  array module parameter.
924
925config GPIO_IT87
926	tristate "IT87xx GPIO support"
927	help
928	  Say yes here to support GPIO functionality of IT87xx Super I/O chips.
929
930	  This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
931	  supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
932	  well.
933
934	  To compile this driver as a module, choose M here: the module will
935	  be called gpio_it87.
936
937config GPIO_SCH
938	tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
939	depends on (X86 || COMPILE_TEST) && ACPI
940	depends on LPC_SCH
941	select GPIOLIB_IRQCHIP
942	help
943	  Say yes here to support GPIO interface on Intel Poulsbo SCH,
944	  Intel Tunnel Creek processor, Intel Centerton processor or
945	  Intel Quark X1000 SoC.
946
947	  The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
948	  powered by the core power rail and are turned off during sleep
949	  modes (S3 and higher). The remaining four GPIOs are powered by
950	  the Intel SCH suspend power supply. These GPIOs remain
951	  active during S3. The suspend-powered GPIOs can be used to wake the
952	  system from the Suspend-to-RAM state.
953
954	  The Intel Tunnel Creek processor has 5 GPIOs powered by the
955	  core power rail and 9 from suspend power supply.
956
957	  The Intel Centerton processor has a total of 30 GPIO pins.
958	  Twenty-one are powered by the core power rail and 9 from the
959	  suspend power supply.
960
961	  The Intel Quark X1000 SoC has 2 GPIOs powered by the core
962	  power well and 6 from the suspend power well.
963
964config GPIO_SCH311X
965	tristate "SMSC SCH311x SuperI/O GPIO"
966	help
967	  Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
968	  SCH3116 "Super I/O" chipsets.
969
970	  To compile this driver as a module, choose M here: the module will
971	  be called gpio-sch311x.
972
973config GPIO_TS5500
974	tristate "TS-5500 DIO blocks and compatibles"
975	depends on TS5500 || COMPILE_TEST
976	help
977	  This driver supports Digital I/O exposed by pin blocks found on some
978	  Technologic Systems platforms. It includes, but is not limited to, 3
979	  blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
980	  LCD port.
981
982config GPIO_WINBOND
983	tristate "Winbond Super I/O GPIO support"
984	select ISA_BUS_API
985	help
986	  This option enables support for GPIOs found on Winbond Super I/O
987	  chips.
988	  Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
989	  supported.
990
991	  You will need to provide a module parameter "gpios", or a
992	  boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
993	  ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
994
995	  To compile this driver as a module, choose M here: the module will
996	  be called gpio-winbond.
997
998config GPIO_WS16C48
999	tristate "WinSystems WS16C48 GPIO support"
1000	select ISA_BUS_API
1001	select REGMAP_IRQ
1002	select REGMAP_MMIO
1003	select GPIOLIB_IRQCHIP
1004	select GPIO_REGMAP
1005	help
1006	  Enables GPIO support for the WinSystems WS16C48. The base port
1007	  addresses for the devices may be configured via the base module
1008	  parameter. The interrupt line numbers for the devices may be
1009	  configured via the irq module parameter.
1010
1011endmenu
1012
1013menu "I2C GPIO expanders"
1014	depends on I2C
1015
1016config GPIO_ADNP
1017	tristate "Avionic Design N-bit GPIO expander"
1018	depends on OF_GPIO
1019	select GPIOLIB_IRQCHIP
1020	help
1021	  This option enables support for N GPIOs found on Avionic Design
1022	  I2C GPIO expanders. The register space will be extended by powers
1023	  of two, so the controller will need to accommodate for that. For
1024	  example: if a controller provides 48 pins, 6 registers will be
1025	  enough to represent all pins, but the driver will assume a
1026	  register layout for 64 pins (8 registers).
1027
1028config GPIO_FXL6408
1029	tristate "FXL6408 I2C GPIO expander"
1030	select GPIO_REGMAP
1031	select REGMAP_I2C
1032	help
1033	  GPIO driver for Fairchild Semiconductor FXL6408 GPIO expander.
1034
1035	  To compile this driver as a module, choose M here: the module will
1036	  be called gpio-fxl6408.
1037
1038config GPIO_DS4520
1039	tristate "DS4520 I2C GPIO expander"
1040	select REGMAP_I2C
1041	select GPIO_REGMAP
1042	help
1043	  GPIO driver for ADI DS4520 I2C-based GPIO expander.
1044	  Say yes here to enable the GPIO driver for the ADI DS4520 chip.
1045
1046	  To compile this driver as a module, choose M here: the module will
1047	  be called gpio-ds4520.
1048
1049config GPIO_GW_PLD
1050	tristate "Gateworks PLD GPIO Expander"
1051	depends on OF_GPIO
1052	help
1053	  Say yes here to provide access to the Gateworks I2C PLD GPIO
1054	  Expander. This is used at least on the Cambria GW2358-4.
1055
1056config GPIO_MAX7300
1057	tristate "Maxim MAX7300 GPIO expander"
1058	select GPIO_MAX730X
1059	help
1060	  GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
1061
1062config GPIO_MAX732X
1063	tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
1064	help
1065	  Say yes here to support the MAX7319, MAX7320-7327 series of I2C
1066	  Port Expanders. Each IO port on these chips has a fixed role of
1067	  Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
1068	  Input and Output (designed by 'P'). The combinations are listed
1069	  below:
1070
1071	  8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
1072	                max7322 (4I4O), max7323 (4P4O)
1073
1074	  16 bits:      max7324 (8I8O), max7325 (8P8O),
1075	                max7326 (4I12O), max7327 (4P12O)
1076
1077	  Board setup code must specify the model to use, and the start
1078	  number for these GPIOs.
1079
1080config GPIO_MAX732X_IRQ
1081	bool "Interrupt controller support for MAX732x"
1082	depends on GPIO_MAX732X=y
1083	select GPIOLIB_IRQCHIP
1084	help
1085	  Say yes here to enable the max732x to be used as an interrupt
1086	  controller. It requires the driver to be built in the kernel.
1087
1088config GPIO_PCA953X
1089	tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
1090	select REGMAP_I2C
1091	help
1092	  Say yes here to provide access to several register-oriented
1093	  SMBus I/O expanders, made mostly by NXP or TI.  Compatible
1094	  models include:
1095
1096	  4 bits:       pca9536, pca9537
1097
1098	  8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
1099	                pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
1100
1101	  16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
1102	                tca6416
1103
1104	  24 bits:      tca6424
1105
1106	  40 bits:      pca9505, pca9698
1107
1108config GPIO_PCA953X_IRQ
1109	bool "Interrupt controller support for PCA953x"
1110	depends on GPIO_PCA953X
1111	select GPIOLIB_IRQCHIP
1112	help
1113	  Say yes here to enable the pca953x to be used as an interrupt
1114	  controller.
1115
1116config GPIO_PCA9570
1117	tristate "PCA9570 4-Bit I2C GPO expander"
1118	help
1119	  Say yes here to enable the GPO driver for the NXP PCA9570 chip.
1120
1121	  To compile this driver as a module, choose M here: the module will
1122	  be called gpio-pca9570.
1123
1124config GPIO_PCF857X
1125	tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
1126	select GPIOLIB_IRQCHIP
1127	select IRQ_DOMAIN
1128	help
1129	  Say yes here to provide access to most "quasi-bidirectional" I2C
1130	  GPIO expanders used for additional digital outputs or inputs.
1131	  Most of these parts are from NXP, though TI is a second source for
1132	  some of them.  Compatible models include:
1133
1134	  8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
1135	            pca9670, pca9672, pca9674, pca9674a,
1136	            max7328, max7329
1137
1138	  16 bits:  pcf8575, pcf8575c, pca8575,
1139	            pca9671, pca9673, pca9675
1140
1141	  Your board setup code will need to declare the expanders in
1142	  use, and assign numbers to the GPIOs they expose.  Those GPIOs
1143	  can then be used from drivers and other kernel code, just like
1144	  other GPIOs, but only accessible from task contexts.
1145
1146	  This driver provides an in-kernel interface to those GPIOs using
1147	  platform-neutral GPIO calls.
1148
1149config GPIO_TPIC2810
1150	tristate "TPIC2810 8-Bit I2C GPO expander"
1151	help
1152	  Say yes here to enable the GPO driver for the TI TPIC2810 chip.
1153
1154	  To compile this driver as a module, choose M here: the module will
1155	  be called gpio-tpic2810.
1156
1157config GPIO_TS4900
1158	tristate "Technologic Systems FPGA I2C GPIO"
1159	depends on SOC_IMX6 || COMPILE_TEST
1160	select REGMAP_I2C
1161	help
1162	  Say yes here to enabled the GPIO driver for Technologic's FPGA core.
1163	  Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
1164
1165endmenu
1166
1167menu "MFD GPIO expanders"
1168
1169config GPIO_ADP5520
1170	tristate "GPIO Support for ADP5520 PMIC"
1171	depends on PMIC_ADP5520
1172	help
1173	  This option enables support for on-chip GPIO found
1174	  on Analog Devices ADP5520 PMICs.
1175
1176config GPIO_ALTERA_A10SR
1177	tristate "Altera Arria10 System Resource GPIO"
1178	depends on MFD_ALTERA_A10SR
1179	help
1180	  Driver for Arria10 Development Kit GPIO expansion which
1181	  includes reads of pushbuttons and DIP switches as well
1182	  as writes to LEDs.
1183
1184config GPIO_ARIZONA
1185	tristate "Wolfson Microelectronics Arizona class devices"
1186	depends on MFD_ARIZONA
1187	help
1188	  Support for GPIOs on Wolfson Arizona class devices.
1189
1190config GPIO_BD71815
1191	tristate "ROHM BD71815 PMIC GPIO support"
1192	depends on MFD_ROHM_BD71828
1193	help
1194	  Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs
1195	  available on the ROHM PMIC.
1196
1197	  This driver can also be built as a module. If so, the module
1198	  will be called gpio-bd71815.
1199
1200config GPIO_BD71828
1201	tristate "ROHM BD71828 GPIO support"
1202	depends on MFD_ROHM_BD71828
1203	help
1204	  Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs
1205	  available on the ROHM PMIC in total. The GPIOs are limited to
1206	  outputs only and pins must be configured to GPIO outputs by
1207	  OTP. Enable this only if you want to use these pins as outputs.
1208
1209	  This driver can also be built as a module. If so, the module
1210	  will be called gpio-bd71828.
1211
1212config GPIO_BD9571MWV
1213	tristate "ROHM BD9571 GPIO support"
1214	depends on MFD_BD9571MWV
1215	help
1216	  Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
1217	  available on the ROHM PMIC in total, both of which can also
1218	  generate interrupts.
1219
1220	  This driver can also be built as a module. If so, the module
1221	  will be called gpio-bd9571mwv.
1222
1223config GPIO_CRYSTAL_COVE
1224	tristate "GPIO support for Crystal Cove PMIC"
1225	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1226	select GPIOLIB_IRQCHIP
1227	help
1228	  Support for GPIO pins on Crystal Cove PMIC.
1229
1230	  Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC
1231	  inside.
1232
1233	  This driver can also be built as a module. If so, the module will be
1234	  called gpio-crystalcove.
1235
1236config GPIO_CS5535
1237	tristate "AMD CS5535/CS5536 GPIO support"
1238	depends on X86 || MIPS || COMPILE_TEST
1239	depends on MFD_CS5535
1240	help
1241	  The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1242	  can be used for quite a number of things.  The CS5535/6 is found on
1243	  AMD Geode and Lemote Yeeloong devices.
1244
1245	  If unsure, say N.
1246
1247config GPIO_DA9052
1248	tristate "Dialog DA9052 GPIO"
1249	depends on PMIC_DA9052
1250	help
1251	  Say yes here to enable the GPIO driver for the DA9052 chip.
1252
1253config GPIO_DA9055
1254	tristate "Dialog Semiconductor DA9055 GPIO"
1255	depends on MFD_DA9055
1256	help
1257	  Say yes here to enable the GPIO driver for the DA9055 chip.
1258
1259	  The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1260	  be controlled by this driver.
1261
1262	  If driver is built as a module it will be called gpio-da9055.
1263
1264config GPIO_DLN2
1265	tristate "Diolan DLN2 GPIO support"
1266	depends on MFD_DLN2
1267	select GPIOLIB_IRQCHIP
1268
1269	help
1270	  Select this option to enable GPIO driver for the Diolan DLN2
1271	  board.
1272
1273	  This driver can also be built as a module. If so, the module
1274	  will be called gpio-dln2.
1275
1276config HTC_EGPIO
1277	bool "HTC EGPIO support"
1278	depends on ARM
1279	help
1280	  This driver supports the CPLD egpio chip present on
1281	  several HTC phones.  It provides basic support for input
1282	  pins, output pins, and IRQs.
1283
1284config GPIO_ELKHARTLAKE
1285	tristate "Intel Elkhart Lake PSE GPIO support"
1286	depends on X86 || COMPILE_TEST
1287	select GPIO_TANGIER
1288	help
1289	  Select this option to enable GPIO support for Intel Elkhart Lake
1290	  PSE GPIO IP.
1291
1292	  To compile this driver as a module, choose M here: the module will
1293	  be called gpio-elkhartlake.
1294
1295config GPIO_JANZ_TTL
1296	tristate "Janz VMOD-TTL Digital IO Module"
1297	depends on MFD_JANZ_CMODIO
1298	help
1299	  This enables support for the Janz VMOD-TTL Digital IO module.
1300	  This driver provides support for driving the pins in output
1301	  mode only. Input mode is not supported.
1302
1303config GPIO_KEMPLD
1304	tristate "Kontron ETX / COMexpress GPIO"
1305	depends on MFD_KEMPLD
1306	help
1307	  This enables support for the PLD GPIO interface on some Kontron ETX
1308	  and COMexpress (ETXexpress) modules.
1309
1310	  This driver can also be built as a module. If so, the module will be
1311	  called gpio-kempld.
1312
1313config GPIO_LJCA
1314	tristate "INTEL La Jolla Cove Adapter GPIO support"
1315	depends on MFD_LJCA
1316	select GPIOLIB_IRQCHIP
1317	default MFD_LJCA
1318	help
1319	  Select this option to enable GPIO driver for the INTEL
1320	  La Jolla Cove Adapter (LJCA) board.
1321
1322	  This driver can also be built as a module. If so, the module
1323	  will be called gpio-ljca.
1324
1325config GPIO_LP3943
1326	tristate "TI/National Semiconductor LP3943 GPIO expander"
1327	depends on MFD_LP3943
1328	help
1329	  GPIO driver for LP3943 MFD.
1330	  LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1331	  Open drain outputs are required for this usage.
1332
1333config GPIO_LP873X
1334	tristate "TI LP873X GPO"
1335	depends on MFD_TI_LP873X
1336	help
1337	  This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1338	  on LP873X PMICs.
1339
1340	  This driver can also be built as a module. If so, the module will be
1341	  called gpio-lp873x.
1342
1343config GPIO_LP87565
1344	tristate "TI LP87565 GPIO"
1345	depends on MFD_TI_LP87565
1346	help
1347	  This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1348	  on LP87565 PMICs.
1349
1350	  This driver can also be built as a module. If so, the module will be
1351	  called gpio-lp87565.
1352
1353config GPIO_MADERA
1354	tristate "Cirrus Logic Madera class codecs"
1355	depends on PINCTRL_MADERA
1356	help
1357	  Support for GPIOs on Cirrus Logic Madera class codecs.
1358
1359config GPIO_MAX77620
1360	tristate "GPIO support for PMIC MAX77620 and MAX20024"
1361	depends on MFD_MAX77620
1362	select GPIOLIB_IRQCHIP
1363	help
1364	  GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1365	  MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1366	  driver also provides interrupt support for each of the GPIOs.
1367	  Say yes here to enable the max77620 to be used as GPIO controller.
1368
1369config GPIO_MAX77650
1370	tristate "Maxim MAX77650/77651 GPIO support"
1371	depends on MFD_MAX77650
1372	help
1373	  GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1374	  These chips have a single pin that can be configured as GPIO.
1375
1376config GPIO_PALMAS
1377	bool "TI PALMAS series PMICs GPIO"
1378	depends on MFD_PALMAS
1379	help
1380	  Select this option to enable GPIO driver for the TI PALMAS
1381	  series chip family.
1382
1383config GPIO_PMIC_EIC_SPRD
1384	tristate "Spreadtrum PMIC EIC support"
1385	depends on MFD_SC27XX_PMIC || COMPILE_TEST
1386	depends on OF_GPIO
1387	select GPIOLIB_IRQCHIP
1388	help
1389	  Say yes here to support Spreadtrum PMIC EIC device.
1390
1391config GPIO_RC5T583
1392	bool "RICOH RC5T583 GPIO"
1393	depends on MFD_RC5T583
1394	help
1395	  Select this option to enable GPIO driver for the Ricoh RC5T583
1396	  chip family.
1397	  This driver provides the support for driving/reading the GPIO pins
1398	  of RC5T583 device through standard GPIO library.
1399
1400config GPIO_SL28CPLD
1401	tristate "Kontron sl28cpld GPIO support"
1402	depends on MFD_SL28CPLD || COMPILE_TEST
1403	select GPIO_REGMAP
1404	select GPIOLIB_IRQCHIP
1405	select REGMAP_IRQ
1406	help
1407	  This enables support for the GPIOs found on the Kontron sl28 CPLD.
1408
1409	  This driver can also be built as a module. If so, the module will be
1410	  called gpio-sl28cpld.
1411
1412config GPIO_STMPE
1413	bool "STMPE GPIOs"
1414	depends on MFD_STMPE
1415	depends on OF_GPIO
1416	select GPIOLIB_IRQCHIP
1417	help
1418	  This enables support for the GPIOs found on the STMPE I/O
1419	  Expanders.
1420
1421config GPIO_TC3589X
1422	bool "TC3589X GPIOs"
1423	depends on MFD_TC3589X
1424	depends on OF_GPIO
1425	select GPIOLIB_IRQCHIP
1426	help
1427	  This enables support for the GPIOs found on the TC3589X
1428	  I/O Expander.
1429
1430config GPIO_TIMBERDALE
1431	bool "Support for timberdale GPIO IP"
1432	depends on MFD_TIMBERDALE
1433	help
1434	Add support for the GPIO IP in the timberdale FPGA.
1435
1436config GPIO_TN48M_CPLD
1437	tristate "Delta Networks TN48M switch CPLD GPIO driver"
1438	depends on MFD_TN48M_CPLD
1439	select GPIO_REGMAP
1440	help
1441	  This enables support for the GPIOs found on the Delta
1442	  Networks TN48M switch Lattice CPLD. It provides 12 pins in total,
1443	  they are input-only or output-only type.
1444
1445	  This driver can also be built as a module. If so, the
1446	  module will be called gpio-tn48m.
1447
1448config GPIO_TPS65086
1449	tristate "TI TPS65086 GPO"
1450	depends on MFD_TPS65086
1451	help
1452	  This driver supports the GPO on TI TPS65086x PMICs.
1453
1454config GPIO_TPS65218
1455	tristate "TPS65218 GPIO"
1456	depends on MFD_TPS65218
1457	help
1458	  Select this option to enable GPIO driver for the TPS65218
1459	  chip family.
1460
1461config GPIO_TPS65219
1462	tristate "TPS65219 GPIO"
1463	depends on MFD_TPS65219
1464	default MFD_TPS65219
1465	help
1466	  Select this option to enable GPIO driver for the TPS65219 chip
1467	  family.
1468	  GPIO0 is statically configured as either input or output prior to
1469	  Linux boot. It is used for MULTI_DEVICE_ENABLE function. This setting
1470	  is statically configured by NVM. GPIO0 can't be used as a generic
1471	  GPIO. It's either a GPO when MULTI_DEVICE_EN=0 or a GPI when
1472	  MULTI_DEVICE_EN=1.
1473
1474	  This driver can also be built as a module. If so, the module will be
1475	  called gpio_tps65219.
1476
1477config GPIO_TPS6586X
1478	bool "TPS6586X GPIO"
1479	depends on MFD_TPS6586X
1480	help
1481	  Select this option to enable GPIO driver for the TPS6586X
1482	  chip family.
1483
1484config GPIO_TPS65910
1485	bool "TPS65910 GPIO"
1486	depends on MFD_TPS65910
1487	help
1488	  Select this option to enable GPIO driver for the TPS65910
1489	  chip family.
1490
1491config GPIO_TPS65912
1492	tristate "TI TPS65912 GPIO"
1493	depends on MFD_TPS65912
1494	help
1495	  This driver supports TPS65912 GPIO chip.
1496
1497config GPIO_TPS68470
1498	tristate "TPS68470 GPIO"
1499	depends on INTEL_SKL_INT3472
1500	help
1501	  Select this option to enable GPIO driver for the TPS68470
1502	  chip family.
1503	  There are 7 GPIOs and few sensor-related GPIOs supported
1504	  by the TPS68470. While the 7 GPIOs can be configured as
1505	  input or output as appropriate, the sensor related GPIOs
1506	  are "output only" GPIOs.
1507
1508config GPIO_TQMX86
1509	tristate "TQ-Systems QTMX86 GPIO"
1510	depends on MFD_TQMX86 || COMPILE_TEST
1511	depends on HAS_IOPORT_MAP
1512	select GPIOLIB_IRQCHIP
1513	help
1514	  This driver supports GPIO on the TQMX86 IO controller.
1515
1516config GPIO_TWL4030
1517	tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1518	depends on TWL4030_CORE
1519	help
1520	  Say yes here to access the GPIO signals of various multi-function
1521	  power management chips from Texas Instruments.
1522
1523config GPIO_TWL6040
1524	tristate "TWL6040 GPO"
1525	depends on TWL6040_CORE
1526	help
1527	  Say yes here to access the GPO signals of twl6040
1528	  audio chip from Texas Instruments.
1529
1530config GPIO_WHISKEY_COVE
1531	tristate "GPIO support for Whiskey Cove PMIC"
1532	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1533	select GPIOLIB_IRQCHIP
1534	help
1535	  Support for GPIO pins on Whiskey Cove PMIC.
1536
1537	  Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC
1538	  inside.
1539
1540	  This driver can also be built as a module. If so, the module will be
1541	  called gpio-wcove.
1542
1543config GPIO_WM831X
1544	tristate "WM831x GPIOs"
1545	depends on MFD_WM831X
1546	help
1547	  Say yes here to access the GPIO signals of WM831x power management
1548	  chips from Wolfson Microelectronics.
1549
1550config GPIO_WM8350
1551	tristate "WM8350 GPIOs"
1552	depends on MFD_WM8350
1553	help
1554	  Say yes here to access the GPIO signals of WM8350 power management
1555	  chips from Wolfson Microelectronics.
1556
1557config GPIO_WM8994
1558	tristate "WM8994 GPIOs"
1559	depends on MFD_WM8994
1560	help
1561	  Say yes here to access the GPIO signals of WM8994 audio hub
1562	  CODECs from Wolfson Microelectronics.
1563
1564endmenu
1565
1566menu "PCI GPIO expanders"
1567	depends on PCI
1568
1569config GPIO_AMD8111
1570	tristate "AMD 8111 GPIO driver"
1571	depends on X86 || COMPILE_TEST
1572	depends on HAS_IOPORT_MAP
1573	help
1574	  The AMD 8111 southbridge contains 32 GPIO pins which can be used.
1575
1576	  Note that usually system firmware/ACPI handles GPIO pins on their
1577	  own and users might easily break their systems with uncareful usage
1578	  of this driver!
1579
1580	  If unsure, say N
1581
1582config GPIO_BT8XX
1583	tristate "BT8XX GPIO abuser"
1584	depends on VIDEO_BT848=n
1585	help
1586	  The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1587	  as a cheap PCI GPIO card.
1588
1589	  This chip can be found on Miro, Hauppauge and STB TV-cards.
1590
1591	  The card needs to be physically altered for using it as a
1592	  GPIO card. For more information on how to build a GPIO card
1593	  from a BT8xx TV card, see the documentation file at
1594	  Documentation/driver-api/gpio/bt8xxgpio.rst
1595
1596	  If unsure, say N.
1597
1598config GPIO_MERRIFIELD
1599	tristate "Intel Merrifield GPIO support"
1600	depends on X86_INTEL_MID
1601	select GPIO_TANGIER
1602	help
1603	  Say Y here to support Intel Merrifield GPIO.
1604
1605config GPIO_MLXBF
1606	tristate "Mellanox BlueField SoC GPIO"
1607	depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1608	select GPIO_GENERIC
1609	help
1610	  Say Y here if you want GPIO support on Mellanox BlueField SoC.
1611
1612config GPIO_MLXBF2
1613	tristate "Mellanox BlueField 2 SoC GPIO"
1614	depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1615	select GPIO_GENERIC
1616	select GPIOLIB_IRQCHIP
1617	help
1618	  Say Y here if you want GPIO support on Mellanox BlueField 2 SoC.
1619
1620config GPIO_MLXBF3
1621	tristate "Mellanox BlueField 3 SoC GPIO"
1622	depends on (MELLANOX_PLATFORM && ARM64) || COMPILE_TEST
1623	select GPIO_GENERIC
1624	select GPIOLIB_IRQCHIP
1625	help
1626	  Say Y if you want GPIO support on Mellanox BlueField 3 SoC.
1627	  This GPIO controller supports interrupt handling and enables the
1628	  manipulation of certain GPIO pins.
1629	  This controller should be used in parallel with pinctrl-mlxbf3 to
1630	  control the desired GPIOs.
1631	  This driver can also be built as a module called mlxbf3-gpio.
1632
1633config GPIO_ML_IOH
1634	tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1635	depends on X86 || COMPILE_TEST
1636	select GENERIC_IRQ_CHIP
1637	help
1638	  ML7213 is companion chip for Intel Atom E6xx series.
1639	  This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output
1640	  Hub) which is for IVI (In-Vehicle Infotainment) use.
1641	  This driver can access the IOH's GPIO device.
1642
1643config GPIO_PCH
1644	tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO"
1645	depends on X86_32 || MIPS || COMPILE_TEST
1646	select GENERIC_IRQ_CHIP
1647	help
1648	  This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff,
1649	  which is an IOH (Input/Output Hub) for x86 embedded processor.
1650	  This driver can access PCH GPIO device.
1651
1652	  This driver also can be used for LAPIS Semiconductor IOH (Input/
1653	  Output Hub), ML7223 and ML7831.
1654	  ML7223 IOH is for MP (Media Phone) use.
1655	  ML7831 IOH is for general purpose use.
1656	  ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1657	  ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1658
1659config GPIO_PCI_IDIO_16
1660	tristate "ACCES PCI-IDIO-16 GPIO support"
1661	select REGMAP_MMIO
1662	select GPIO_IDIO_16
1663	help
1664	  Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1665	  generated when any of the inputs change state (low to high or high to
1666	  low). Input filter control is not supported by this driver, and the
1667	  input filters are deactivated by this driver.
1668
1669config GPIO_PCIE_IDIO_24
1670	tristate "ACCES PCIe-IDIO-24 GPIO support"
1671	select REGMAP_IRQ
1672	select REGMAP_MMIO
1673	select GPIOLIB_IRQCHIP
1674	select GPIO_REGMAP
1675	help
1676	  Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1677	  PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1678	  when any of the inputs change state (low to high or high to low).
1679	  Input filter control is not supported by this driver, and the input
1680	  filters are deactivated by this driver.
1681
1682config GPIO_RDC321X
1683	tristate "RDC R-321x GPIO support"
1684	select MFD_CORE
1685	select MFD_RDC321X
1686	help
1687	  Support for the RDC R321x SoC GPIOs over southbridge
1688	  PCI configuration space.
1689
1690config GPIO_SODAVILLE
1691	bool "Intel Sodaville GPIO support"
1692	depends on X86 && OF
1693	select GPIO_GENERIC
1694	select GENERIC_IRQ_CHIP
1695	help
1696	  Say Y here to support Intel Sodaville GPIO.
1697
1698endmenu
1699
1700menu "SPI GPIO expanders"
1701	depends on SPI_MASTER
1702
1703config GPIO_74X164
1704	tristate "74x164 serial-in/parallel-out 8-bits shift register"
1705	depends on OF_GPIO
1706	help
1707	  Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1708	  shift registers. This driver can be used to provide access
1709	  to more GPIO outputs.
1710
1711config GPIO_MAX3191X
1712	tristate "Maxim MAX3191x industrial serializer"
1713	select CRC8
1714	help
1715	  GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1716	  MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1717	  chip to make 8 digital 24V inputs available via SPI.  Supports
1718	  CRC checksums to guard against electromagnetic interference,
1719	  as well as undervoltage and overtemperature detection.
1720
1721config GPIO_MAX7301
1722	tristate "Maxim MAX7301 GPIO expander"
1723	select GPIO_MAX730X
1724	help
1725	  GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1726
1727config GPIO_MC33880
1728	tristate "Freescale MC33880 high-side/low-side switch"
1729	help
1730	  SPI driver for Freescale MC33880 high-side/low-side switch.
1731	  This provides GPIO interface supporting inputs and outputs.
1732
1733config GPIO_PISOSR
1734	tristate "Generic parallel-in/serial-out shift register"
1735	help
1736	  GPIO driver for SPI compatible parallel-in/serial-out shift
1737	  registers. These are input only devices.
1738
1739config GPIO_XRA1403
1740	tristate "EXAR XRA1403 16-bit GPIO expander"
1741	select REGMAP_SPI
1742	help
1743	  GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1744
1745config GPIO_MOXTET
1746	tristate "Turris Mox Moxtet bus GPIO expander"
1747	depends on MOXTET
1748	help
1749	  Say yes here if you are building for the Turris Mox router.
1750	  This is the driver needed for configuring the GPIOs via the Moxtet
1751	  bus. For example the Mox module with SFP cage needs this driver
1752	  so that phylink can use corresponding GPIOs.
1753
1754endmenu
1755
1756menu "USB GPIO expanders"
1757	depends on USB
1758
1759config GPIO_VIPERBOARD
1760	tristate "Viperboard GPIO a & b support"
1761	depends on MFD_VIPERBOARD
1762	help
1763	  Say yes here to access the GPIO signals of Nano River
1764	  Technologies Viperboard. There are two GPIO chips on the
1765	  board: gpioa and gpiob.
1766	  See viperboard API specification and Nano
1767	  River Tech's viperboard.h for detailed meaning
1768	  of the module parameters.
1769
1770endmenu
1771
1772menu "Virtual GPIO drivers"
1773
1774config GPIO_AGGREGATOR
1775	tristate "GPIO Aggregator"
1776	help
1777	  Say yes here to enable the GPIO Aggregator, which provides a way to
1778	  aggregate existing GPIO lines into a new virtual GPIO chip.
1779	  This can serve the following purposes:
1780	    - Assign permissions for a collection of GPIO lines to a user,
1781	    - Export a collection of GPIO lines to a virtual machine,
1782	    - Provide a generic driver for a GPIO-operated device in an
1783	      industrial control context, to be operated from userspace using
1784	      the GPIO chardev interface.
1785
1786config GPIO_LATCH
1787	tristate "GPIO latch driver"
1788	help
1789	  Say yes here to enable a driver for GPIO multiplexers based on latches
1790	  connected to other GPIOs.
1791
1792config GPIO_MOCKUP
1793	tristate "GPIO Testing Driver"
1794	select IRQ_SIM
1795	help
1796	  This enables GPIO Testing driver, which provides a way to test GPIO
1797	  subsystem through sysfs (or char device) and debugfs.
1798	  User could use it through the script in
1799	  tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1800	  it.
1801
1802config GPIO_VIRTIO
1803	tristate "VirtIO GPIO support"
1804	depends on VIRTIO
1805	select GPIOLIB_IRQCHIP
1806	help
1807	  Say Y here to enable guest support for virtio-based GPIO controllers.
1808
1809	  These virtual GPIOs can be routed to real GPIOs or attached to
1810	  simulators on the host (like QEMU).
1811
1812config GPIO_SIM
1813	tristate "GPIO Simulator Module"
1814	select IRQ_SIM
1815	select CONFIGFS_FS
1816	help
1817	  This enables the GPIO simulator - a configfs-based GPIO testing
1818	  driver.
1819
1820endmenu
1821
1822endif
1823