1# SPDX-License-Identifier: GPL-2.0-only
2#
3# GPIO infrastructure and drivers
4#
5
6config ARCH_HAVE_CUSTOM_GPIO_H
7	bool
8	help
9	  Selecting this config option from the architecture Kconfig allows
10	  the architecture to provide a custom asm/gpio.h implementation
11	  overriding the default implementations.  New uses of this are
12	  strongly discouraged.
13
14menuconfig GPIOLIB
15	bool "GPIO Support"
16	help
17	  This enables GPIO support through the generic GPIO library.
18	  You only need to enable this, if you also want to enable
19	  one or more of the GPIO drivers below.
20
21	  If unsure, say N.
22
23if GPIOLIB
24
25config GPIOLIB_FASTPATH_LIMIT
26	int "Maximum number of GPIOs for fast path"
27	range 32 512
28	default 512
29	help
30	  This adjusts the point at which certain APIs will switch from
31	  using a stack allocated buffer to a dynamically allocated buffer.
32
33	  You shouldn't need to change this unless you really need to
34	  optimize either stack space or performance. Change this carefully
35	  since setting an incorrect value could cause stack corruption.
36
37config OF_GPIO
38	def_bool y
39	depends on OF
40	depends on HAS_IOMEM
41
42config GPIO_ACPI
43	def_bool y
44	depends on ACPI
45
46config GPIOLIB_IRQCHIP
47	select IRQ_DOMAIN
48	bool
49
50config DEBUG_GPIO
51	bool "Debug GPIO calls"
52	depends on DEBUG_KERNEL
53	help
54	  Say Y here to add some extra checks and diagnostics to GPIO calls.
55	  These checks help ensure that GPIOs have been properly initialized
56	  before they are used, and that sleeping calls are not made from
57	  non-sleeping contexts.  They can make bitbanged serial protocols
58	  slower.  The diagnostics help catch the type of setup errors
59	  that are most common when setting up new platforms or boards.
60
61config GPIO_SYSFS
62	bool "/sys/class/gpio/... (sysfs interface)"
63	depends on SYSFS
64	help
65	  Say Y here to add the legacy sysfs interface for GPIOs.
66
67	  This ABI is deprecated. If you want to use GPIO from userspace,
68	  use the character device /dev/gpiochipN with the appropriate
69	  ioctl() operations instead.
70
71config GPIO_CDEV
72	bool
73	prompt "Character device (/dev/gpiochipN) support" if EXPERT
74	default y
75	help
76	  Say Y here to add the character device /dev/gpiochipN interface
77	  for GPIOs. The character device allows userspace to control GPIOs
78	  using ioctl() operations.
79
80	  Only say N if you are sure that the GPIO character device is not
81	  required.
82
83	  If unsure, say Y.
84
85config GPIO_CDEV_V1
86	bool "Support GPIO ABI Version 1"
87	default y
88	depends on GPIO_CDEV
89	help
90	  Say Y here to support version 1 of the GPIO CDEV ABI.
91
92	  This ABI version is deprecated.
93	  Please use the latest ABI for new developments.
94
95	  If unsure, say Y.
96
97config GPIO_GENERIC
98	depends on HAS_IOMEM # Only for IOMEM drivers
99	tristate
100
101config GPIO_REGMAP
102	depends on REGMAP
103	tristate
104
105# put drivers in the right section, in alphabetical order
106
107# This symbol is selected by both I2C and SPI expanders
108config GPIO_MAX730X
109	tristate
110
111menu "Memory mapped GPIO drivers"
112	depends on HAS_IOMEM
113
114config GPIO_74XX_MMIO
115	tristate "GPIO driver for 74xx-ICs with MMIO access"
116	depends on OF_GPIO
117	select GPIO_GENERIC
118	help
119	  Say yes here to support GPIO functionality for 74xx-compatible ICs
120	  with MMIO access. Compatible models include:
121	    1 bit:	741G125 (Input), 741G74 (Output)
122	    2 bits:	742G125 (Input), 7474 (Output)
123	    4 bits:	74125 (Input), 74175 (Output)
124	    6 bits:	74365 (Input), 74174 (Output)
125	    8 bits:	74244 (Input), 74273 (Output)
126	    16 bits:	741624 (Input), 7416374 (Output)
127
128config GPIO_ALTERA
129	tristate "Altera GPIO"
130	depends on OF_GPIO
131	select GPIOLIB_IRQCHIP
132	help
133	  Say Y or M here to build support for the Altera PIO device.
134
135	  If driver is built as a module it will be called gpio-altera.
136
137config GPIO_AMDPT
138	tristate "AMD Promontory GPIO support"
139	depends on ACPI
140	select GPIO_GENERIC
141	help
142	  driver for GPIO functionality on Promontory IOHub
143	  Require ACPI ASL code to enumerate as a platform device.
144
145config GPIO_ASPEED
146	tristate "Aspeed GPIO support"
147	depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
148	select GPIOLIB_IRQCHIP
149	help
150	  Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
151
152config GPIO_ASPEED_SGPIO
153	bool "Aspeed SGPIO support"
154	depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
155	select GPIO_GENERIC
156	select GPIOLIB_IRQCHIP
157	help
158	  Say Y here to support Aspeed AST2500 SGPIO functionality.
159
160config GPIO_ATH79
161	tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
162	default y if ATH79
163	depends on ATH79 || COMPILE_TEST
164	select GPIO_GENERIC
165	select GPIOLIB_IRQCHIP
166	help
167	  Select this option to enable GPIO driver for
168	  Atheros AR71XX/AR724X/AR913X SoC devices.
169
170config GPIO_RASPBERRYPI_EXP
171	tristate "Raspberry Pi 3 GPIO Expander"
172	default RASPBERRYPI_FIRMWARE
173	depends on OF_GPIO
174	# Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
175	# happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
176	depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
177	help
178	  Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
179	  the firmware mailbox to communicate with VideoCore on BCM283x chips.
180
181config GPIO_BCM_KONA
182	bool "Broadcom Kona GPIO"
183	depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
184	help
185	  Turn on GPIO support for Broadcom "Kona" chips.
186
187config GPIO_BCM_XGS_IPROC
188	tristate "BRCM XGS iProc GPIO support"
189	depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST)
190	select GPIO_GENERIC
191	select GPIOLIB_IRQCHIP
192	default ARCH_BCM_IPROC
193	help
194	  Say yes here to enable GPIO support for Broadcom XGS iProc SoCs.
195
196config GPIO_BRCMSTB
197	tristate "BRCMSTB GPIO support"
198	default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
199	depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
200	select GPIO_GENERIC
201	select IRQ_DOMAIN
202	help
203	  Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
204
205config GPIO_CADENCE
206	tristate "Cadence GPIO support"
207	depends on OF_GPIO
208	select GPIO_GENERIC
209	select GPIOLIB_IRQCHIP
210	help
211	  Say yes here to enable support for Cadence GPIO controller.
212
213config GPIO_CLPS711X
214	tristate "CLPS711X GPIO support"
215	depends on ARCH_CLPS711X || COMPILE_TEST
216	select GPIO_GENERIC
217	help
218	  Say yes here to support GPIO on CLPS711X SoCs.
219
220config GPIO_DAVINCI
221	bool "TI Davinci/Keystone GPIO support"
222	default y if ARCH_DAVINCI
223	depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3)
224	help
225	  Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
226
227config GPIO_DWAPB
228	tristate "Synopsys DesignWare APB GPIO driver"
229	select GPIO_GENERIC
230	select GPIOLIB_IRQCHIP
231	help
232	  Say Y or M here to build support for the Synopsys DesignWare APB
233	  GPIO block.
234
235config GPIO_EIC_SPRD
236	tristate "Spreadtrum EIC support"
237	depends on ARCH_SPRD || COMPILE_TEST
238	depends on OF_GPIO
239	select GPIOLIB_IRQCHIP
240	help
241	  Say yes here to support Spreadtrum EIC device.
242
243config GPIO_EM
244	tristate "Emma Mobile GPIO"
245	depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
246	help
247	  Say yes here to support GPIO on Renesas Emma Mobile SoCs.
248
249config GPIO_EP93XX
250	def_bool y
251	depends on ARCH_EP93XX
252	select GPIO_GENERIC
253	select GPIOLIB_IRQCHIP
254
255config GPIO_EXAR
256	tristate "Support for GPIO pins on XR17V352/354/358"
257	depends on SERIAL_8250_EXAR
258	help
259	  Selecting this option will enable handling of GPIO pins present
260	  on Exar XR17V352/354/358 chips.
261
262config GPIO_GE_FPGA
263	bool "GE FPGA based GPIO"
264	depends on GE_FPGA
265	select GPIO_GENERIC
266	help
267	  Support for common GPIO functionality provided on some GE Single Board
268	  Computers.
269
270	  This driver provides basic support (configure as input or output, read
271	  and write pin state) for GPIO implemented in a number of GE single
272	  board computers.
273
274config GPIO_FTGPIO010
275	bool "Faraday FTGPIO010 GPIO"
276	depends on OF_GPIO
277	select GPIO_GENERIC
278	select GPIOLIB_IRQCHIP
279	default (ARCH_GEMINI || ARCH_MOXART)
280	help
281	  Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
282	  Cortina systems Gemini platforms, Moxa ART and others.
283
284config GPIO_GENERIC_PLATFORM
285	tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
286	select GPIO_GENERIC
287	help
288	  Say yes here to support basic platform_device memory-mapped GPIO controllers.
289
290config GPIO_GRGPIO
291	tristate "Aeroflex Gaisler GRGPIO support"
292	depends on OF_GPIO
293	select GPIO_GENERIC
294	select IRQ_DOMAIN
295	help
296	  Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
297	  VHDL IP core library.
298
299config GPIO_HLWD
300	tristate "Nintendo Wii (Hollywood) GPIO"
301	depends on OF_GPIO
302	select GPIO_GENERIC
303	select GPIOLIB_IRQCHIP
304	help
305	  Select this to support the GPIO controller of the Nintendo Wii.
306
307	  If unsure, say N.
308
309config GPIO_ICH
310	tristate "Intel ICH GPIO"
311	depends on PCI && X86
312	select MFD_CORE
313	select LPC_ICH
314	help
315	  Say yes here to support the GPIO functionality of a number of Intel
316	  ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
317	  ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
318	  Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
319
320	  If unsure, say N.
321
322config GPIO_IOP
323	tristate "Intel IOP GPIO"
324	depends on ARCH_IOP32X || COMPILE_TEST
325	select GPIO_GENERIC
326	help
327	  Say yes here to support the GPIO functionality of a number of Intel
328	  IOP32X or IOP33X.
329
330	  If unsure, say N.
331
332config GPIO_IXP4XX
333	bool "Intel IXP4xx GPIO"
334	depends on ARM # For <asm/mach-types.h>
335	depends on ARCH_IXP4XX
336	select GPIO_GENERIC
337	select GPIOLIB_IRQCHIP
338	select IRQ_DOMAIN_HIERARCHY
339	help
340	  Say yes here to support the GPIO functionality of a number of Intel
341	  IXP4xx series of chips.
342
343	  If unsure, say N.
344config GPIO_LOGICVC
345	tristate "Xylon LogiCVC GPIO support"
346	depends on MFD_SYSCON && OF
347	help
348	  Say yes here to support GPIO functionality of the Xylon LogiCVC
349	  programmable logic block.
350
351config GPIO_LOONGSON
352	bool "Loongson-2/3 GPIO support"
353	depends on CPU_LOONGSON2EF || CPU_LOONGSON64
354	help
355	  driver for GPIO functionality on Loongson-2F/3A/3B processors.
356
357config GPIO_LPC18XX
358	tristate "NXP LPC18XX/43XX GPIO support"
359	default y if ARCH_LPC18XX
360	depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
361	select IRQ_DOMAIN_HIERARCHY
362	help
363	  Select this option to enable GPIO driver for
364	  NXP LPC18XX/43XX devices.
365
366config GPIO_LPC32XX
367	tristate "NXP LPC32XX GPIO support"
368	depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST)
369	help
370	  Select this option to enable GPIO driver for
371	  NXP LPC32XX devices.
372
373config GPIO_MB86S7X
374	tristate "GPIO support for Fujitsu MB86S7x Platforms"
375	help
376	  Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
377
378config GPIO_MENZ127
379	tristate "MEN 16Z127 GPIO support"
380	depends on MCB
381	select GPIO_GENERIC
382	help
383	  Say yes here to support the MEN 16Z127 GPIO Controller
384
385config GPIO_MM_LANTIQ
386	bool "Lantiq Memory mapped GPIOs"
387	depends on LANTIQ && SOC_XWAY
388	help
389	  This enables support for memory mapped GPIOs on the External Bus Unit
390	  (EBU) found on Lantiq SoCs. The gpios are output only as they are
391	  created by attaching a 16bit latch to the bus.
392
393config GPIO_MPC5200
394	def_bool y
395	depends on PPC_MPC52xx
396
397config GPIO_MPC8XXX
398	bool "MPC512x/MPC8xxx/QorIQ GPIO support"
399	depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
400		   FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
401		   COMPILE_TEST
402	select GPIO_GENERIC
403	select IRQ_DOMAIN
404	help
405	  Say Y here if you're going to use hardware that connects to the
406	  MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
407
408config GPIO_MT7621
409	bool "Mediatek MT7621 GPIO Support"
410	depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
411	depends on OF_GPIO
412	select GPIO_GENERIC
413	select GPIOLIB_IRQCHIP
414	help
415	  Say yes here to support the Mediatek MT7621 SoC GPIO device
416
417config GPIO_MVEBU
418	def_bool y
419	depends on PLAT_ORION || ARCH_MVEBU
420	depends on OF_GPIO
421	select GENERIC_IRQ_CHIP
422	select REGMAP_MMIO
423
424config GPIO_MXC
425	tristate "i.MX GPIO support"
426	depends on ARCH_MXC || COMPILE_TEST
427	select GPIO_GENERIC
428	select GENERIC_IRQ_CHIP
429
430config GPIO_MXS
431	def_bool y
432	depends on ARCH_MXS || COMPILE_TEST
433	select GPIO_GENERIC
434	select GENERIC_IRQ_CHIP
435
436config GPIO_OCTEON
437	tristate "Cavium OCTEON GPIO"
438	depends on CAVIUM_OCTEON_SOC
439	default y
440	help
441	  Say yes here to support the on-chip GPIO lines on the OCTEON
442	  family of SOCs.
443
444config GPIO_OMAP
445	tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
446	default y if ARCH_OMAP
447	depends on ARM
448	select GENERIC_IRQ_CHIP
449	select GPIOLIB_IRQCHIP
450	help
451	  Say yes here to enable GPIO support for TI OMAP SoCs.
452
453config GPIO_PL061
454	tristate "PrimeCell PL061 GPIO support"
455	depends on ARM_AMBA
456	select IRQ_DOMAIN
457	select GPIOLIB_IRQCHIP
458	help
459	  Say yes here to support the PrimeCell PL061 GPIO device
460
461config GPIO_PMIC_EIC_SPRD
462	tristate "Spreadtrum PMIC EIC support"
463	depends on MFD_SC27XX_PMIC || COMPILE_TEST
464	depends on OF_GPIO
465	select GPIOLIB_IRQCHIP
466	help
467	  Say yes here to support Spreadtrum PMIC EIC device.
468
469config GPIO_PXA
470	bool "PXA GPIO support"
471	depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST
472	help
473	  Say yes here to support the PXA GPIO device
474
475config GPIO_RCAR
476	tristate "Renesas R-Car GPIO"
477	depends on ARCH_RENESAS || COMPILE_TEST
478	select GPIOLIB_IRQCHIP
479	help
480	  Say yes here to support GPIO on Renesas R-Car SoCs.
481
482config GPIO_RDA
483	bool "RDA Micro GPIO controller support"
484	depends on ARCH_RDA || COMPILE_TEST
485	depends on OF_GPIO
486	select GPIO_GENERIC
487	select GPIOLIB_IRQCHIP
488	help
489	  Say Y here to support RDA Micro GPIO controller.
490
491config GPIO_REG
492	bool
493	help
494	  A 32-bit single register GPIO fixed in/out implementation.  This
495	  can be used to represent any register as a set of GPIO signals.
496
497config GPIO_SAMA5D2_PIOBU
498	tristate "SAMA5D2 PIOBU GPIO support"
499	depends on MFD_SYSCON
500	depends on OF_GPIO
501	select GPIO_SYSCON
502	help
503	  Say yes here to use the PIOBU pins as GPIOs.
504
505	  PIOBU pins on the SAMA5D2 can be used as GPIOs.
506	  The difference from regular GPIOs is that they
507	  maintain their value during backup/self-refresh.
508
509config GPIO_SIFIVE
510	bool "SiFive GPIO support"
511	depends on OF_GPIO && IRQ_DOMAIN_HIERARCHY
512	select GPIO_GENERIC
513	select GPIOLIB_IRQCHIP
514	select REGMAP_MMIO
515	help
516	  Say yes here to support the GPIO device on SiFive SoCs.
517
518config GPIO_SIOX
519	tristate "SIOX GPIO support"
520	depends on SIOX
521	select GPIOLIB_IRQCHIP
522	help
523	  Say yes here to support SIOX I/O devices. These are units connected
524	  via a SIOX bus and have a number of fixed-direction I/O lines.
525
526config GPIO_SNPS_CREG
527	bool "Synopsys GPIO via CREG (Control REGisters) driver"
528	depends on ARC || COMPILE_TEST
529	depends on OF_GPIO
530	help
531	  This driver supports GPIOs via CREG on various Synopsys SoCs.
532	  This is a single-register MMIO GPIO driver for complex cases
533	  where only several fields in register belong to GPIO lines and
534	  each GPIO line owns a field with different length and on/off value.
535
536config GPIO_SPEAR_SPICS
537	bool "ST SPEAr13xx SPI Chip Select as GPIO support"
538	depends on PLAT_SPEAR
539	select GENERIC_IRQ_CHIP
540	help
541	  Say yes here to support ST SPEAr SPI Chip Select as GPIO device
542
543config GPIO_SPRD
544	tristate "Spreadtrum GPIO support"
545	depends on ARCH_SPRD || COMPILE_TEST
546	depends on OF_GPIO
547	select GPIOLIB_IRQCHIP
548	help
549	  Say yes here to support Spreadtrum GPIO device.
550
551config GPIO_STA2X11
552	bool "STA2x11/ConneXt GPIO support"
553	depends on MFD_STA2X11
554	select GENERIC_IRQ_CHIP
555	help
556	  Say yes here to support the STA2x11/ConneXt GPIO device.
557	  The GPIO module has 128 GPIO pins with alternate functions.
558
559config GPIO_STP_XWAY
560	bool "XWAY STP GPIOs"
561	depends on SOC_XWAY || COMPILE_TEST
562	depends on OF_GPIO
563	help
564	  This enables support for the Serial To Parallel (STP) unit found on
565	  XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
566	  that can be up to 24 bit. This peripheral is aimed at driving leds.
567	  Some of the gpios/leds can be auto updated by the soc with dsl and
568	  phy status.
569
570config GPIO_SYSCON
571	tristate "GPIO based on SYSCON"
572	depends on MFD_SYSCON && OF
573	help
574	  Say yes here to support GPIO functionality though SYSCON driver.
575
576config GPIO_TB10X
577	bool
578	select GPIO_GENERIC
579	select GENERIC_IRQ_CHIP
580	select OF_GPIO
581
582config GPIO_TEGRA
583	bool "NVIDIA Tegra GPIO support"
584	default ARCH_TEGRA
585	depends on ARCH_TEGRA || COMPILE_TEST
586	depends on OF_GPIO
587	help
588	  Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
589
590config GPIO_TEGRA186
591	tristate "NVIDIA Tegra186 GPIO support"
592	default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC
593	depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST
594	depends on OF_GPIO
595	select GPIOLIB_IRQCHIP
596	select IRQ_DOMAIN_HIERARCHY
597	help
598	  Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
599
600config GPIO_TS4800
601	tristate "TS-4800 DIO blocks and compatibles"
602	depends on OF_GPIO
603	depends on SOC_IMX51 || COMPILE_TEST
604	select GPIO_GENERIC
605	help
606	  This driver support TS-4800 FPGA GPIO controllers.
607
608config GPIO_THUNDERX
609	tristate "Cavium ThunderX/OCTEON-TX GPIO"
610	depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
611	depends on PCI_MSI
612	select GPIOLIB_IRQCHIP
613	select IRQ_DOMAIN_HIERARCHY
614	select IRQ_FASTEOI_HIERARCHY_HANDLERS
615	help
616	  Say yes here to support the on-chip GPIO lines on the ThunderX
617	  and OCTEON-TX families of SoCs.
618
619config GPIO_UNIPHIER
620	tristate "UniPhier GPIO support"
621	depends on ARCH_UNIPHIER || COMPILE_TEST
622	depends on OF_GPIO
623	select IRQ_DOMAIN_HIERARCHY
624	help
625	  Say yes here to support UniPhier GPIOs.
626
627config GPIO_VF610
628	def_bool y
629	depends on ARCH_MXC && SOC_VF610
630	select GPIOLIB_IRQCHIP
631	help
632	  Say yes here to support Vybrid vf610 GPIOs.
633
634config GPIO_VR41XX
635	tristate "NEC VR4100 series General-purpose I/O Uint support"
636	depends on CPU_VR41XX
637	help
638	  Say yes here to support the NEC VR4100 series General-purpose I/O Uint
639
640config GPIO_VX855
641	tristate "VIA VX855/VX875 GPIO"
642	depends on (X86 || COMPILE_TEST) && PCI
643	select MFD_CORE
644	select MFD_VX855
645	help
646	  Support access to the VX855/VX875 GPIO lines through the gpio library.
647
648	  This driver provides common support for accessing the device,
649	  additional drivers must be enabled in order to use the
650	  functionality of the device.
651
652config GPIO_WCD934X
653	tristate "Qualcomm Technologies Inc WCD9340/WCD9341 gpio controller driver"
654	depends on MFD_WCD934X && OF_GPIO
655	help
656         This driver is to supprot GPIO block found on the Qualcomm Technologies
657	 Inc WCD9340/WCD9341 Audio Codec.
658
659config GPIO_XGENE
660	bool "APM X-Gene GPIO controller support"
661	depends on ARM64 && OF_GPIO
662	help
663	  This driver is to support the GPIO block within the APM X-Gene SoC
664	  platform's generic flash controller. The GPIO pins are muxed with
665	  the generic flash controller's address and data pins. Say yes
666	  here to enable the GFC GPIO functionality.
667
668config GPIO_XGENE_SB
669	tristate "APM X-Gene GPIO standby controller support"
670	depends on (ARCH_XGENE || COMPILE_TEST)
671	select GPIO_GENERIC
672	select GPIOLIB_IRQCHIP
673	select IRQ_DOMAIN_HIERARCHY
674	help
675	  This driver supports the GPIO block within the APM X-Gene
676	  Standby Domain. Say yes here to enable the GPIO functionality.
677
678config GPIO_XILINX
679	tristate "Xilinx GPIO support"
680	help
681	  Say yes here to support the Xilinx FPGA GPIO device
682
683config GPIO_XLP
684	tristate "Netlogic XLP GPIO support"
685	depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
686	select GPIOLIB_IRQCHIP
687	help
688	  This driver provides support for GPIO interface on Netlogic XLP MIPS64
689	  SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
690	  XLP9XX and XLP5XX. The same GPIO controller block is also present in
691	  Cavium's ThunderX2 CN99XX SoCs.
692
693	  If unsure, say N.
694
695config GPIO_XTENSA
696	bool "Xtensa GPIO32 support"
697	depends on XTENSA
698	depends on HAVE_XTENSA_GPIO32
699	depends on !SMP
700	help
701	  Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
702	  and EXPSTATE (output) ports
703
704config GPIO_ZEVIO
705	bool "LSI ZEVIO SoC memory mapped GPIOs"
706	depends on ARM && OF_GPIO
707	help
708	  Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
709
710config GPIO_ZYNQ
711	tristate "Xilinx Zynq GPIO support"
712	depends on ARCH_ZYNQ || ARCH_ZYNQMP
713	select GPIOLIB_IRQCHIP
714	help
715	  Say yes here to support Xilinx Zynq GPIO controller.
716
717config GPIO_ZX
718	bool "ZTE ZX GPIO support"
719	depends on ARCH_ZX || COMPILE_TEST
720	select GPIOLIB_IRQCHIP
721	help
722	  Say yes here to support the GPIO device on ZTE ZX SoCs.
723
724config GPIO_LOONGSON1
725	tristate "Loongson1 GPIO support"
726	depends on MACH_LOONGSON32
727	select GPIO_GENERIC
728	help
729	  Say Y or M here to support GPIO on Loongson1 SoCs.
730
731config GPIO_AMD_FCH
732	tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
733	help
734	  This option enables driver for GPIO on AMDs Fusion Controller Hub,
735	  as found on G-series SOCs (eg. GX-412TC)
736
737	  Note: This driver doesn't registers itself automatically, as it
738	  needs to be provided with platform specific configuration.
739	  (See eg. CONFIG_PCENGINES_APU2.)
740endmenu
741
742menu "Port-mapped I/O GPIO drivers"
743	depends on X86 # Unconditional I/O space access
744
745config GPIO_104_DIO_48E
746	tristate "ACCES 104-DIO-48E GPIO support"
747	depends on PC104
748	select ISA_BUS_API
749	select GPIOLIB_IRQCHIP
750	help
751	  Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
752	  104-DIO-24E). The base port addresses for the devices may be
753	  configured via the base module parameter. The interrupt line numbers
754	  for the devices may be configured via the irq module parameter.
755
756config GPIO_104_IDIO_16
757	tristate "ACCES 104-IDIO-16 GPIO support"
758	depends on PC104
759	select ISA_BUS_API
760	select GPIOLIB_IRQCHIP
761	help
762	  Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
763	  104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
764	  base port addresses for the devices may be configured via the base
765	  module parameter. The interrupt line numbers for the devices may be
766	  configured via the irq module parameter.
767
768config GPIO_104_IDI_48
769	tristate "ACCES 104-IDI-48 GPIO support"
770	depends on PC104
771	select ISA_BUS_API
772	select GPIOLIB_IRQCHIP
773	help
774	  Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
775	  104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
776	  the devices may be configured via the base module parameter. The
777	  interrupt line numbers for the devices may be configured via the irq
778	  module parameter.
779
780config GPIO_F7188X
781	tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
782	help
783	  This option enables support for GPIOs found on Fintek Super-I/O
784	  chips F71869, F71869A, F71882FG, F71889F and F81866.
785
786	  To compile this driver as a module, choose M here: the module will
787	  be called f7188x-gpio.
788
789config GPIO_GPIO_MM
790	tristate "Diamond Systems GPIO-MM GPIO support"
791	depends on PC104
792	select ISA_BUS_API
793	help
794	  Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
795
796	  The Diamond Systems GPIO-MM device features 48 lines of digital I/O
797	  via the emulation of dual 82C55A PPI chips. This driver provides GPIO
798	  support for these 48 channels of digital I/O.
799
800	  The base port addresses for the devices may be configured via the base
801	  array module parameter.
802
803config GPIO_IT87
804	tristate "IT87xx GPIO support"
805	help
806	  Say yes here to support GPIO functionality of IT87xx Super I/O chips.
807
808	  This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
809	  supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
810	  well.
811
812	  To compile this driver as a module, choose M here: the module will
813	  be called gpio_it87
814
815config GPIO_SCH
816	tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
817	depends on (X86 || COMPILE_TEST) && PCI
818	select MFD_CORE
819	select LPC_SCH
820	help
821	  Say yes here to support GPIO interface on Intel Poulsbo SCH,
822	  Intel Tunnel Creek processor, Intel Centerton processor or
823	  Intel Quark X1000 SoC.
824
825	  The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
826	  powered by the core power rail and are turned off during sleep
827	  modes (S3 and higher). The remaining four GPIOs are powered by
828	  the Intel SCH suspend power supply. These GPIOs remain
829	  active during S3. The suspend powered GPIOs can be used to wake the
830	  system from the Suspend-to-RAM state.
831
832	  The Intel Tunnel Creek processor has 5 GPIOs powered by the
833	  core power rail and 9 from suspend power supply.
834
835	  The Intel Centerton processor has a total of 30 GPIO pins.
836	  Twenty-one are powered by the core power rail and 9 from the
837	  suspend power supply.
838
839	  The Intel Quark X1000 SoC has 2 GPIOs powered by the core
840	  power well and 6 from the suspend power well.
841
842config GPIO_SCH311X
843	tristate "SMSC SCH311x SuperI/O GPIO"
844	help
845	  Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
846	  SCH3116 "Super I/O" chipsets.
847
848	  To compile this driver as a module, choose M here: the module will
849	  be called gpio-sch311x.
850
851config GPIO_TS5500
852	tristate "TS-5500 DIO blocks and compatibles"
853	depends on TS5500 || COMPILE_TEST
854	help
855	  This driver supports Digital I/O exposed by pin blocks found on some
856	  Technologic Systems platforms. It includes, but is not limited to, 3
857	  blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
858	  LCD port.
859
860config GPIO_WINBOND
861	tristate "Winbond Super I/O GPIO support"
862	select ISA_BUS_API
863	help
864	  This option enables support for GPIOs found on Winbond Super I/O
865	  chips.
866	  Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
867	  supported.
868
869	  You will need to provide a module parameter "gpios", or a
870	  boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
871	  ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
872
873	  To compile this driver as a module, choose M here: the module will
874	  be called gpio-winbond.
875
876config GPIO_WS16C48
877	tristate "WinSystems WS16C48 GPIO support"
878	select ISA_BUS_API
879	select GPIOLIB_IRQCHIP
880	help
881	  Enables GPIO support for the WinSystems WS16C48. The base port
882	  addresses for the devices may be configured via the base module
883	  parameter. The interrupt line numbers for the devices may be
884	  configured via the irq module parameter.
885
886endmenu
887
888menu "I2C GPIO expanders"
889	depends on I2C
890
891config GPIO_ADP5588
892	tristate "ADP5588 I2C GPIO expander"
893	help
894	  This option enables support for 18 GPIOs found
895	  on Analog Devices ADP5588 GPIO Expanders.
896
897config GPIO_ADP5588_IRQ
898	bool "Interrupt controller support for ADP5588"
899	depends on GPIO_ADP5588=y
900	select GPIOLIB_IRQCHIP
901	help
902	  Say yes here to enable the adp5588 to be used as an interrupt
903	  controller. It requires the driver to be built in the kernel.
904
905config GPIO_ADNP
906	tristate "Avionic Design N-bit GPIO expander"
907	depends on OF_GPIO
908	select GPIOLIB_IRQCHIP
909	help
910	  This option enables support for N GPIOs found on Avionic Design
911	  I2C GPIO expanders. The register space will be extended by powers
912	  of two, so the controller will need to accommodate for that. For
913	  example: if a controller provides 48 pins, 6 registers will be
914	  enough to represent all pins, but the driver will assume a
915	  register layout for 64 pins (8 registers).
916
917config GPIO_GW_PLD
918	tristate "Gateworks PLD GPIO Expander"
919	depends on OF_GPIO
920	help
921	  Say yes here to provide access to the Gateworks I2C PLD GPIO
922	  Expander. This is used at least on the Cambria GW2358-4.
923
924config GPIO_MAX7300
925	tristate "Maxim MAX7300 GPIO expander"
926	select GPIO_MAX730X
927	help
928	  GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
929
930config GPIO_MAX732X
931	tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
932	help
933	  Say yes here to support the MAX7319, MAX7320-7327 series of I2C
934	  Port Expanders. Each IO port on these chips has a fixed role of
935	  Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
936	  Input and Output (designed by 'P'). The combinations are listed
937	  below:
938
939	  8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
940	                max7322 (4I4O), max7323 (4P4O)
941
942	  16 bits:      max7324 (8I8O), max7325 (8P8O),
943	                max7326 (4I12O), max7327 (4P12O)
944
945	  Board setup code must specify the model to use, and the start
946	  number for these GPIOs.
947
948config GPIO_MAX732X_IRQ
949	bool "Interrupt controller support for MAX732x"
950	depends on GPIO_MAX732X=y
951	select GPIOLIB_IRQCHIP
952	help
953	  Say yes here to enable the max732x to be used as an interrupt
954	  controller. It requires the driver to be built in the kernel.
955
956config GPIO_MC9S08DZ60
957	bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
958	depends on I2C=y && MACH_MX35_3DS
959	help
960	  Select this to enable the MC9S08DZ60 GPIO driver
961
962config GPIO_PCA953X
963	tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
964	select REGMAP_I2C
965	help
966	  Say yes here to provide access to several register-oriented
967	  SMBus I/O expanders, made mostly by NXP or TI.  Compatible
968	  models include:
969
970	  4 bits:       pca9536, pca9537
971
972	  8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
973	                pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
974
975	  16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
976	                tca6416
977
978	  24 bits:      tca6424
979
980	  40 bits:      pca9505, pca9698
981
982config GPIO_PCA953X_IRQ
983	bool "Interrupt controller support for PCA953x"
984	depends on GPIO_PCA953X
985	select GPIOLIB_IRQCHIP
986	help
987	  Say yes here to enable the pca953x to be used as an interrupt
988	  controller. It requires the driver to be built in the kernel.
989
990config GPIO_PCA9570
991	tristate "PCA9570 4-Bit I2C GPO expander"
992	help
993	  Say yes here to enable the GPO driver for the NXP PCA9570 chip.
994
995	  To compile this driver as a module, choose M here: the module will
996	  be called gpio-pca9570.
997
998config GPIO_PCF857X
999	tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
1000	select GPIOLIB_IRQCHIP
1001	select IRQ_DOMAIN
1002	help
1003	  Say yes here to provide access to most "quasi-bidirectional" I2C
1004	  GPIO expanders used for additional digital outputs or inputs.
1005	  Most of these parts are from NXP, though TI is a second source for
1006	  some of them.  Compatible models include:
1007
1008	  8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
1009	            pca9670, pca9672, pca9674, pca9674a,
1010	            max7328, max7329
1011
1012	  16 bits:  pcf8575, pcf8575c, pca8575,
1013	            pca9671, pca9673, pca9675
1014
1015	  Your board setup code will need to declare the expanders in
1016	  use, and assign numbers to the GPIOs they expose.  Those GPIOs
1017	  can then be used from drivers and other kernel code, just like
1018	  other GPIOs, but only accessible from task contexts.
1019
1020	  This driver provides an in-kernel interface to those GPIOs using
1021	  platform-neutral GPIO calls.
1022
1023config GPIO_TPIC2810
1024	tristate "TPIC2810 8-Bit I2C GPO expander"
1025	help
1026	  Say yes here to enable the GPO driver for the TI TPIC2810 chip.
1027
1028	  To compile this driver as a module, choose M here: the module will
1029	  be called gpio-tpic2810.
1030
1031config GPIO_TS4900
1032	tristate "Technologic Systems FPGA I2C GPIO"
1033	depends on SOC_IMX6 || COMPILE_TEST
1034	select REGMAP_I2C
1035	help
1036	  Say yes here to enabled the GPIO driver for Technologic's FPGA core.
1037	  Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
1038
1039endmenu
1040
1041menu "MFD GPIO expanders"
1042
1043config GPIO_ADP5520
1044	tristate "GPIO Support for ADP5520 PMIC"
1045	depends on PMIC_ADP5520
1046	help
1047	  This option enables support for on-chip GPIO found
1048	  on Analog Devices ADP5520 PMICs.
1049
1050config GPIO_ALTERA_A10SR
1051	tristate "Altera Arria10 System Resource GPIO"
1052	depends on MFD_ALTERA_A10SR
1053	help
1054	  Driver for Arria10 Development Kit GPIO expansion which
1055	  includes reads of pushbuttons and DIP switches as well
1056	  as writes to LEDs.
1057
1058config GPIO_ARIZONA
1059	tristate "Wolfson Microelectronics Arizona class devices"
1060	depends on MFD_ARIZONA
1061	help
1062	  Support for GPIOs on Wolfson Arizona class devices.
1063
1064config GPIO_BD70528
1065	tristate "ROHM BD70528 GPIO support"
1066	depends on MFD_ROHM_BD70528
1067	help
1068	  Support for GPIOs on ROHM BD70528 PMIC. There are four GPIOs
1069	  available on the ROHM PMIC in total. The GPIOs can also
1070	  generate interrupts.
1071
1072	  This driver can also be built as a module. If so, the module
1073	  will be called gpio-bd70528.
1074
1075config GPIO_BD71828
1076	tristate "ROHM BD71828 GPIO support"
1077	depends on MFD_ROHM_BD71828
1078	help
1079	  Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs
1080	  available on the ROHM PMIC in total. The GPIOs are limited to
1081	  outputs only and pins must be configured to GPIO outputs by
1082	  OTP. Enable this only if you want to use these pins as outputs.
1083
1084	  This driver can also be built as a module. If so, the module
1085	  will be called gpio-bd71828.
1086
1087config GPIO_BD9571MWV
1088	tristate "ROHM BD9571 GPIO support"
1089	depends on MFD_BD9571MWV
1090	help
1091	  Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
1092	  available on the ROHM PMIC in total, both of which can also
1093	  generate interrupts.
1094
1095	  This driver can also be built as a module. If so, the module
1096	  will be called gpio-bd9571mwv.
1097
1098config GPIO_CRYSTAL_COVE
1099	tristate "GPIO support for Crystal Cove PMIC"
1100	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1101	select GPIOLIB_IRQCHIP
1102	help
1103	  Support for GPIO pins on Crystal Cove PMIC.
1104
1105	  Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
1106	  inside.
1107
1108	  This driver can also be built as a module. If so, the module will be
1109	  called gpio-crystalcove.
1110
1111config GPIO_CS5535
1112	tristate "AMD CS5535/CS5536 GPIO support"
1113	depends on X86 || MIPS || COMPILE_TEST
1114	depends on MFD_CS5535
1115	help
1116	  The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1117	  can be used for quite a number of things.  The CS5535/6 is found on
1118	  AMD Geode and Lemote Yeeloong devices.
1119
1120	  If unsure, say N.
1121
1122config GPIO_DA9052
1123	tristate "Dialog DA9052 GPIO"
1124	depends on PMIC_DA9052
1125	help
1126	  Say yes here to enable the GPIO driver for the DA9052 chip.
1127
1128config GPIO_DA9055
1129	tristate "Dialog Semiconductor DA9055 GPIO"
1130	depends on MFD_DA9055
1131	help
1132	  Say yes here to enable the GPIO driver for the DA9055 chip.
1133
1134	  The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1135	  be controller by this driver.
1136
1137	  If driver is built as a module it will be called gpio-da9055.
1138
1139config GPIO_DLN2
1140	tristate "Diolan DLN2 GPIO support"
1141	depends on MFD_DLN2
1142	select GPIOLIB_IRQCHIP
1143
1144	help
1145	  Select this option to enable GPIO driver for the Diolan DLN2
1146	  board.
1147
1148	  This driver can also be built as a module. If so, the module
1149	  will be called gpio-dln2.
1150
1151config HTC_EGPIO
1152	bool "HTC EGPIO support"
1153	depends on ARM
1154	help
1155	  This driver supports the CPLD egpio chip present on
1156	  several HTC phones.  It provides basic support for input
1157	  pins, output pins, and irqs.
1158
1159config GPIO_JANZ_TTL
1160	tristate "Janz VMOD-TTL Digital IO Module"
1161	depends on MFD_JANZ_CMODIO
1162	help
1163	  This enables support for the Janz VMOD-TTL Digital IO module.
1164	  This driver provides support for driving the pins in output
1165	  mode only. Input mode is not supported.
1166
1167config GPIO_KEMPLD
1168	tristate "Kontron ETX / COMexpress GPIO"
1169	depends on MFD_KEMPLD
1170	help
1171	  This enables support for the PLD GPIO interface on some Kontron ETX
1172	  and COMexpress (ETXexpress) modules.
1173
1174	  This driver can also be built as a module. If so, the module will be
1175	  called gpio-kempld.
1176
1177config GPIO_LP3943
1178	tristate "TI/National Semiconductor LP3943 GPIO expander"
1179	depends on MFD_LP3943
1180	help
1181	  GPIO driver for LP3943 MFD.
1182	  LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1183	  Open drain outputs are required for this usage.
1184
1185config GPIO_LP873X
1186	tristate "TI LP873X GPO"
1187	depends on MFD_TI_LP873X
1188	help
1189	  This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1190	  on LP873X PMICs.
1191
1192	  This driver can also be built as a module. If so, the module will be
1193	  called gpio-lp873x.
1194
1195config GPIO_LP87565
1196	tristate "TI LP87565 GPIO"
1197	depends on MFD_TI_LP87565
1198	help
1199	  This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1200	  on LP87565 PMICs.
1201
1202	  This driver can also be built as a module. If so, the module will be
1203	  called gpio-lp87565.
1204
1205config GPIO_MADERA
1206	tristate "Cirrus Logic Madera class codecs"
1207	depends on PINCTRL_MADERA
1208	help
1209	  Support for GPIOs on Cirrus Logic Madera class codecs.
1210
1211config GPIO_MAX77620
1212	tristate "GPIO support for PMIC MAX77620 and MAX20024"
1213	depends on MFD_MAX77620
1214	select GPIOLIB_IRQCHIP
1215	help
1216	  GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1217	  MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1218	  driver also provides interrupt support for each of the gpios.
1219	  Say yes here to enable the max77620 to be used as gpio controller.
1220
1221config GPIO_MAX77650
1222	tristate "Maxim MAX77650/77651 GPIO support"
1223	depends on MFD_MAX77650
1224	help
1225	  GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1226	  These chips have a single pin that can be configured as GPIO.
1227
1228config GPIO_MSIC
1229	bool "Intel MSIC mixed signal gpio support"
1230	depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
1231	help
1232	  Enable support for GPIO on intel MSIC controllers found in
1233	  intel MID devices
1234
1235config GPIO_PALMAS
1236	bool "TI PALMAS series PMICs GPIO"
1237	depends on MFD_PALMAS
1238	help
1239	  Select this option to enable GPIO driver for the TI PALMAS
1240	  series chip family.
1241
1242config GPIO_RC5T583
1243	bool "RICOH RC5T583 GPIO"
1244	depends on MFD_RC5T583
1245	help
1246	  Select this option to enable GPIO driver for the Ricoh RC5T583
1247	  chip family.
1248	  This driver provides the support for driving/reading the gpio pins
1249	  of RC5T583 device through standard gpio library.
1250
1251config GPIO_SL28CPLD
1252	tristate "Kontron sl28cpld GPIO support"
1253	depends on MFD_SL28CPLD || COMPILE_TEST
1254	select GPIO_REGMAP
1255	select GPIOLIB_IRQCHIP
1256	select REGMAP_IRQ
1257	help
1258	  This enables support for the GPIOs found on the Kontron sl28 CPLD.
1259
1260	  This driver can also be built as a module. If so, the module will be
1261	  called gpio-sl28cpld.
1262
1263config GPIO_STMPE
1264	bool "STMPE GPIOs"
1265	depends on MFD_STMPE
1266	depends on OF_GPIO
1267	select GPIOLIB_IRQCHIP
1268	help
1269	  This enables support for the GPIOs found on the STMPE I/O
1270	  Expanders.
1271
1272config GPIO_TC3589X
1273	bool "TC3589X GPIOs"
1274	depends on MFD_TC3589X
1275	depends on OF_GPIO
1276	select GPIOLIB_IRQCHIP
1277	help
1278	  This enables support for the GPIOs found on the TC3589X
1279	  I/O Expander.
1280
1281config GPIO_TIMBERDALE
1282	bool "Support for timberdale GPIO IP"
1283	depends on MFD_TIMBERDALE
1284	help
1285	Add support for the GPIO IP in the timberdale FPGA.
1286
1287config GPIO_TPS65086
1288	tristate "TI TPS65086 GPO"
1289	depends on MFD_TPS65086
1290	help
1291	  This driver supports the GPO on TI TPS65086x PMICs.
1292
1293config GPIO_TPS65218
1294	tristate "TPS65218 GPIO"
1295	depends on MFD_TPS65218
1296	help
1297	  Select this option to enable GPIO driver for the TPS65218
1298	  chip family.
1299
1300config GPIO_TPS6586X
1301	bool "TPS6586X GPIO"
1302	depends on MFD_TPS6586X
1303	help
1304	  Select this option to enable GPIO driver for the TPS6586X
1305	  chip family.
1306
1307config GPIO_TPS65910
1308	bool "TPS65910 GPIO"
1309	depends on MFD_TPS65910
1310	help
1311	  Select this option to enable GPIO driver for the TPS65910
1312	  chip family.
1313
1314config GPIO_TPS65912
1315	tristate "TI TPS65912 GPIO"
1316	depends on MFD_TPS65912
1317	help
1318	  This driver supports TPS65912 gpio chip
1319
1320config GPIO_TPS68470
1321	bool "TPS68470 GPIO"
1322	depends on MFD_TPS68470
1323	help
1324	  Select this option to enable GPIO driver for the TPS68470
1325	  chip family.
1326	  There are 7 GPIOs and few sensor related GPIOs supported
1327	  by the TPS68470. While the 7 GPIOs can be configured as
1328	  input or output as appropriate, the sensor related GPIOs
1329	  are "output only" GPIOs.
1330
1331	  This driver config is bool, as the GPIO functionality
1332	  of the TPS68470 must be available before dependent
1333	  drivers are loaded.
1334
1335config GPIO_TQMX86
1336	tristate "TQ-Systems QTMX86 GPIO"
1337	depends on MFD_TQMX86 || COMPILE_TEST
1338	select GPIOLIB_IRQCHIP
1339	help
1340	  This driver supports GPIO on the TQMX86 IO controller.
1341
1342config GPIO_TWL4030
1343	tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1344	depends on TWL4030_CORE
1345	help
1346	  Say yes here to access the GPIO signals of various multi-function
1347	  power management chips from Texas Instruments.
1348
1349config GPIO_TWL6040
1350	tristate "TWL6040 GPO"
1351	depends on TWL6040_CORE
1352	help
1353	  Say yes here to access the GPO signals of twl6040
1354	  audio chip from Texas Instruments.
1355
1356config GPIO_UCB1400
1357	tristate "Philips UCB1400 GPIO"
1358	depends on UCB1400_CORE
1359	help
1360	  This enables support for the Philips UCB1400 GPIO pins.
1361	  The UCB1400 is an AC97 audio codec.
1362
1363config GPIO_WHISKEY_COVE
1364	tristate "GPIO support for Whiskey Cove PMIC"
1365	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1366	select GPIOLIB_IRQCHIP
1367	help
1368	  Support for GPIO pins on Whiskey Cove PMIC.
1369
1370	  Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1371	  inside.
1372
1373	  This driver can also be built as a module. If so, the module will be
1374	  called gpio-wcove.
1375
1376config GPIO_WM831X
1377	tristate "WM831x GPIOs"
1378	depends on MFD_WM831X
1379	help
1380	  Say yes here to access the GPIO signals of WM831x power management
1381	  chips from Wolfson Microelectronics.
1382
1383config GPIO_WM8350
1384	tristate "WM8350 GPIOs"
1385	depends on MFD_WM8350
1386	help
1387	  Say yes here to access the GPIO signals of WM8350 power management
1388	  chips from Wolfson Microelectronics.
1389
1390config GPIO_WM8994
1391	tristate "WM8994 GPIOs"
1392	depends on MFD_WM8994
1393	help
1394	  Say yes here to access the GPIO signals of WM8994 audio hub
1395	  CODECs from Wolfson Microelectronics.
1396
1397endmenu
1398
1399menu "PCI GPIO expanders"
1400	depends on PCI
1401
1402config GPIO_AMD8111
1403	tristate "AMD 8111 GPIO driver"
1404	depends on X86 || COMPILE_TEST
1405	help
1406	  The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1407
1408	  Note, that usually system firmware/ACPI handles GPIO pins on their
1409	  own and users might easily break their systems with uncarefull usage
1410	  of this driver!
1411
1412	  If unsure, say N
1413
1414config GPIO_BT8XX
1415	tristate "BT8XX GPIO abuser"
1416	depends on VIDEO_BT848=n
1417	help
1418	  The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1419	  as a cheap PCI GPIO card.
1420
1421	  This chip can be found on Miro, Hauppauge and STB TV-cards.
1422
1423	  The card needs to be physically altered for using it as a
1424	  GPIO card. For more information on how to build a GPIO card
1425	  from a BT8xx TV card, see the documentation file at
1426	  Documentation/driver-api/gpio/bt8xxgpio.rst
1427
1428	  If unsure, say N.
1429
1430config GPIO_INTEL_MID
1431	bool "Intel MID GPIO support"
1432	depends on X86_INTEL_MID
1433	select GPIOLIB_IRQCHIP
1434	help
1435	  Say Y here to support Intel MID GPIO.
1436
1437config GPIO_MERRIFIELD
1438	tristate "Intel Merrifield GPIO support"
1439	depends on X86_INTEL_MID
1440	select GPIOLIB_IRQCHIP
1441	help
1442	  Say Y here to support Intel Merrifield GPIO.
1443
1444config GPIO_MLXBF
1445	tristate "Mellanox BlueField SoC GPIO"
1446	depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1447	select GPIO_GENERIC
1448	help
1449	  Say Y here if you want GPIO support on Mellanox BlueField SoC.
1450
1451config GPIO_MLXBF2
1452	tristate "Mellanox BlueField 2 SoC GPIO"
1453	depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1454	select GPIO_GENERIC
1455	help
1456	  Say Y here if you want GPIO support on Mellanox BlueField 2 SoC.
1457
1458config GPIO_ML_IOH
1459	tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1460	depends on X86 || COMPILE_TEST
1461	select GENERIC_IRQ_CHIP
1462	help
1463	  ML7213 is companion chip for Intel Atom E6xx series.
1464	  This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1465	  Hub) which is for IVI(In-Vehicle Infotainment) use.
1466	  This driver can access the IOH's GPIO device.
1467
1468config GPIO_PCH
1469	tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1470	depends on X86_32 || MIPS || COMPILE_TEST
1471	select GENERIC_IRQ_CHIP
1472	help
1473	  This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1474	  which is an IOH(Input/Output Hub) for x86 embedded processor.
1475	  This driver can access PCH GPIO device.
1476
1477	  This driver also can be used for LAPIS Semiconductor IOH(Input/
1478	  Output Hub), ML7223 and ML7831.
1479	  ML7223 IOH is for MP(Media Phone) use.
1480	  ML7831 IOH is for general purpose use.
1481	  ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1482	  ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1483
1484config GPIO_PCI_IDIO_16
1485	tristate "ACCES PCI-IDIO-16 GPIO support"
1486	select GPIOLIB_IRQCHIP
1487	help
1488	  Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1489	  generated when any of the inputs change state (low to high or high to
1490	  low). Input filter control is not supported by this driver, and the
1491	  input filters are deactivated by this driver.
1492
1493config GPIO_PCIE_IDIO_24
1494	tristate "ACCES PCIe-IDIO-24 GPIO support"
1495	select GPIOLIB_IRQCHIP
1496	help
1497	  Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1498	  PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1499	  when any of the inputs change state (low to high or high to low).
1500	  Input filter control is not supported by this driver, and the input
1501	  filters are deactivated by this driver.
1502
1503config GPIO_RDC321X
1504	tristate "RDC R-321x GPIO support"
1505	select MFD_CORE
1506	select MFD_RDC321X
1507	help
1508	  Support for the RDC R321x SoC GPIOs over southbridge
1509	  PCI configuration space.
1510
1511config GPIO_SODAVILLE
1512	bool "Intel Sodaville GPIO support"
1513	depends on X86 && OF
1514	select GPIO_GENERIC
1515	select GENERIC_IRQ_CHIP
1516	help
1517	  Say Y here to support Intel Sodaville GPIO.
1518
1519endmenu
1520
1521menu "SPI GPIO expanders"
1522	depends on SPI_MASTER
1523
1524config GPIO_74X164
1525	tristate "74x164 serial-in/parallel-out 8-bits shift register"
1526	depends on OF_GPIO
1527	help
1528	  Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1529	  shift registers. This driver can be used to provide access
1530	  to more gpio outputs.
1531
1532config GPIO_MAX3191X
1533	tristate "Maxim MAX3191x industrial serializer"
1534	select CRC8
1535	help
1536	  GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1537	  MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1538	  chip to make 8 digital 24V inputs available via SPI.  Supports
1539	  CRC checksums to guard against electromagnetic interference,
1540	  as well as undervoltage and overtemperature detection.
1541
1542config GPIO_MAX7301
1543	tristate "Maxim MAX7301 GPIO expander"
1544	select GPIO_MAX730X
1545	help
1546	  GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1547
1548config GPIO_MC33880
1549	tristate "Freescale MC33880 high-side/low-side switch"
1550	help
1551	  SPI driver for Freescale MC33880 high-side/low-side switch.
1552	  This provides GPIO interface supporting inputs and outputs.
1553
1554config GPIO_PISOSR
1555	tristate "Generic parallel-in/serial-out shift register"
1556	help
1557	  GPIO driver for SPI compatible parallel-in/serial-out shift
1558	  registers. These are input only devices.
1559
1560config GPIO_XRA1403
1561	tristate "EXAR XRA1403 16-bit GPIO expander"
1562	select REGMAP_SPI
1563	help
1564	  GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1565
1566config GPIO_MOXTET
1567	tristate "Turris Mox Moxtet bus GPIO expander"
1568	depends on MOXTET
1569	help
1570	  Say yes here if you are building for the Turris Mox router.
1571	  This is the driver needed for configuring the GPIOs via the Moxtet
1572	  bus. For example the Mox module with SFP cage needs this driver
1573	  so that phylink can use corresponding GPIOs.
1574
1575endmenu
1576
1577menu "USB GPIO expanders"
1578	depends on USB
1579
1580config GPIO_VIPERBOARD
1581	tristate "Viperboard GPIO a & b support"
1582	depends on MFD_VIPERBOARD
1583	help
1584	  Say yes here to access the GPIO signals of Nano River
1585	  Technologies Viperboard. There are two GPIO chips on the
1586	  board: gpioa and gpiob.
1587	  See viperboard API specification and Nano
1588	  River Tech's viperboard.h for detailed meaning
1589	  of the module parameters.
1590
1591endmenu
1592
1593config GPIO_AGGREGATOR
1594	tristate "GPIO Aggregator"
1595	help
1596	  Say yes here to enable the GPIO Aggregator, which provides a way to
1597	  aggregate existing GPIO lines into a new virtual GPIO chip.
1598	  This can serve the following purposes:
1599	    - Assign permissions for a collection of GPIO lines to a user,
1600	    - Export a collection of GPIO lines to a virtual machine,
1601	    - Provide a generic driver for a GPIO-operated device in an
1602	      industrial control context, to be operated from userspace using
1603	      the GPIO chardev interface.
1604
1605config GPIO_MOCKUP
1606	tristate "GPIO Testing Driver"
1607	select IRQ_SIM
1608	help
1609	  This enables GPIO Testing driver, which provides a way to test GPIO
1610	  subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
1611	  must be selected for this test.
1612	  User could use it through the script in
1613	  tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1614	  it.
1615
1616endif
1617