tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1# SPDX-License-Identifier: GPL-2.0-only
2#
3# GPIO infrastructure and drivers
4#
5
6config ARCH_HAVE_CUSTOM_GPIO_H
7 bool
8 help
9 Selecting this config option from the architecture Kconfig allows
10 the architecture to provide a custom asm/gpio.h implementation
11 overriding the default implementations. New uses of this are
12 strongly discouraged.
13
14menuconfig GPIOLIB
15 bool "GPIO Support"
16 help
17 This enables GPIO support through the generic GPIO library.
18 You only need to enable this if you also want to enable
19 one or more of the GPIO drivers below.
20
21 If unsure, say N.
22
23if GPIOLIB
24
25config GPIOLIB_FASTPATH_LIMIT
26 int "Maximum number of GPIOs for fast path"
27 range 32 512
28 default 512
29 help
30 This adjusts the point at which certain APIs will switch from
31 using a stack allocated buffer to a dynamically allocated buffer.
32
33 You shouldn't need to change this unless you really need to
34 optimize either stack space or performance. Change this carefully
35 since setting an incorrect value could cause stack corruption.
36
37config OF_GPIO
38 def_bool y
39 depends on OF
40 depends on HAS_IOMEM
41
42config GPIO_ACPI
43 def_bool y
44 depends on ACPI
45
46config GPIOLIB_IRQCHIP
47 select IRQ_DOMAIN
48 bool
49
50config DEBUG_GPIO
51 bool "Debug GPIO calls"
52 depends on DEBUG_KERNEL
53 help
54 Say Y here to add some extra checks and diagnostics to GPIO calls.
55 These checks help ensure that GPIOs have been properly initialized
56 before they are used, and that sleeping calls are not made from
57 non-sleeping contexts. They can make bitbanged serial protocols
58 slower. The diagnostics help catch the type of setup errors
59 that are most common when setting up new platforms or boards.
60
61config GPIO_SYSFS
62 bool "/sys/class/gpio/... (sysfs interface)" if EXPERT
63 depends on SYSFS
64 select GPIO_CDEV # We need to encourage the new ABI
65 help
66 Say Y here to add the legacy sysfs interface for GPIOs.
67
68 This ABI is deprecated. If you want to use GPIO from userspace,
69 use the character device /dev/gpiochipN with the appropriate
70 ioctl() operations instead.
71
72config GPIO_CDEV
73 bool
74 prompt "Character device (/dev/gpiochipN) support" if EXPERT
75 default y
76 help
77 Say Y here to add the character device /dev/gpiochipN interface
78 for GPIOs. The character device allows userspace to control GPIOs
79 using ioctl() operations.
80
81 Only say N if you are sure that the GPIO character device is not
82 required.
83
84 If unsure, say Y.
85
86config GPIO_CDEV_V1
87 bool "Support GPIO ABI Version 1"
88 default y
89 depends on GPIO_CDEV
90 help
91 Say Y here to support version 1 of the GPIO CDEV ABI.
92
93 This ABI version is deprecated.
94 Please use the latest ABI for new developments.
95
96 If unsure, say Y.
97
98config GPIO_GENERIC
99 depends on HAS_IOMEM # Only for IOMEM drivers
100 tristate
101
102config GPIO_REGMAP
103 depends on REGMAP
104 tristate
105
106# put drivers in the right section, in alphabetical order
107
108# This symbol is selected by both I2C and SPI expanders
109config GPIO_MAX730X
110 tristate
111
112menu "Memory mapped GPIO drivers"
113 depends on HAS_IOMEM
114
115config GPIO_74XX_MMIO
116 tristate "GPIO driver for 74xx-ICs with MMIO access"
117 depends on OF_GPIO
118 select GPIO_GENERIC
119 help
120 Say yes here to support GPIO functionality for 74xx-compatible ICs
121 with MMIO access. Compatible models include:
122 1 bit: 741G125 (Input), 741G74 (Output)
123 2 bits: 742G125 (Input), 7474 (Output)
124 4 bits: 74125 (Input), 74175 (Output)
125 6 bits: 74365 (Input), 74174 (Output)
126 8 bits: 74244 (Input), 74273 (Output)
127 16 bits: 741624 (Input), 7416374 (Output)
128
129config GPIO_ALTERA
130 tristate "Altera GPIO"
131 depends on OF_GPIO
132 select GPIOLIB_IRQCHIP
133 help
134 Say Y or M here to build support for the Altera PIO device.
135
136 If driver is built as a module it will be called gpio-altera.
137
138config GPIO_AMDPT
139 tristate "AMD Promontory GPIO support"
140 depends on ACPI
141 select GPIO_GENERIC
142 help
143 Driver for GPIO functionality on Promontory IOHub.
144 Requires ACPI ASL code to enumerate as a platform device.
145
146config GPIO_ASPEED
147 tristate "Aspeed GPIO support"
148 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
149 select GPIOLIB_IRQCHIP
150 help
151 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
152
153config GPIO_ASPEED_SGPIO
154 bool "Aspeed SGPIO support"
155 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
156 select GPIO_GENERIC
157 select GPIOLIB_IRQCHIP
158 help
159 Say Y here to support Aspeed AST2500 SGPIO functionality.
160
161config GPIO_ATH79
162 tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
163 default y if ATH79
164 depends on ATH79 || COMPILE_TEST
165 select GPIO_GENERIC
166 select GPIOLIB_IRQCHIP
167 help
168 Select this option to enable GPIO driver for
169 Atheros AR71XX/AR724X/AR913X SoC devices.
170
171config GPIO_RASPBERRYPI_EXP
172 tristate "Raspberry Pi 3 GPIO Expander"
173 default RASPBERRYPI_FIRMWARE
174 depends on OF_GPIO
175 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
176 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
177 depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
178 help
179 Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
180 the firmware mailbox to communicate with VideoCore on BCM283x chips.
181
182config GPIO_BCM_KONA
183 bool "Broadcom Kona GPIO"
184 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
185 help
186 Turn on GPIO support for Broadcom "Kona" chips.
187
188config GPIO_BCM_XGS_IPROC
189 tristate "BRCM XGS iProc GPIO support"
190 depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST)
191 select GPIO_GENERIC
192 select GPIOLIB_IRQCHIP
193 default ARCH_BCM_IPROC
194 help
195 Say yes here to enable GPIO support for Broadcom XGS iProc SoCs.
196
197config GPIO_BRCMSTB
198 tristate "BRCMSTB GPIO support"
199 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
200 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
201 select GPIO_GENERIC
202 select IRQ_DOMAIN
203 help
204 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
205
206config GPIO_CADENCE
207 tristate "Cadence GPIO support"
208 depends on OF_GPIO
209 select GPIO_GENERIC
210 select GPIOLIB_IRQCHIP
211 help
212 Say yes here to enable support for Cadence GPIO controller.
213
214config GPIO_CLPS711X
215 tristate "CLPS711X GPIO support"
216 depends on ARCH_CLPS711X || COMPILE_TEST
217 select GPIO_GENERIC
218 help
219 Say yes here to support GPIO on CLPS711X SoCs.
220
221config GPIO_DAVINCI
222 bool "TI Davinci/Keystone GPIO support"
223 default y if ARCH_DAVINCI
224 depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3)
225 help
226 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
227
228config GPIO_DWAPB
229 tristate "Synopsys DesignWare APB GPIO driver"
230 select GPIO_GENERIC
231 select GPIOLIB_IRQCHIP
232 help
233 Say Y or M here to build support for the Synopsys DesignWare APB
234 GPIO block.
235
236config GPIO_EIC_SPRD
237 tristate "Spreadtrum EIC support"
238 depends on ARCH_SPRD || COMPILE_TEST
239 depends on OF_GPIO
240 select GPIOLIB_IRQCHIP
241 help
242 Say yes here to support Spreadtrum EIC device.
243
244config GPIO_EM
245 tristate "Emma Mobile GPIO"
246 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
247 help
248 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
249
250config GPIO_EN7523
251 tristate "Airoha GPIO support"
252 depends on ARCH_AIROHA
253 default ARCH_AIROHA
254 select GPIO_GENERIC
255 select GPIOLIB_IRQCHIP
256 help
257 Say Y or M here to support the GPIO controller block on the
258 Airoha EN7523 SoC. It supports two banks of 32 GPIOs.
259
260config GPIO_EP93XX
261 def_bool y
262 depends on ARCH_EP93XX
263 select GPIO_GENERIC
264 select GPIOLIB_IRQCHIP
265
266config GPIO_EXAR
267 tristate "Support for GPIO pins on XR17V352/354/358"
268 depends on SERIAL_8250_EXAR
269 select REGMAP_MMIO
270 help
271 Selecting this option will enable handling of GPIO pins present
272 on Exar XR17V352/354/358 chips.
273
274config GPIO_GE_FPGA
275 bool "GE FPGA based GPIO"
276 depends on GE_FPGA
277 select GPIO_GENERIC
278 help
279 Support for common GPIO functionality provided on some GE Single Board
280 Computers.
281
282 This driver provides basic support (configure as input or output, read
283 and write pin state) for GPIO implemented in a number of GE single
284 board computers.
285
286config GPIO_FTGPIO010
287 bool "Faraday FTGPIO010 GPIO"
288 depends on OF_GPIO
289 select GPIO_GENERIC
290 select GPIOLIB_IRQCHIP
291 default (ARCH_GEMINI || ARCH_MOXART)
292 help
293 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
294 Cortina systems Gemini platforms, Moxa ART and others.
295
296config GPIO_GENERIC_PLATFORM
297 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
298 select GPIO_GENERIC
299 help
300 Say yes here to support basic platform_device memory-mapped GPIO controllers.
301
302config GPIO_GRGPIO
303 tristate "Aeroflex Gaisler GRGPIO support"
304 depends on OF_GPIO
305 select GPIO_GENERIC
306 select IRQ_DOMAIN
307 help
308 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
309 VHDL IP core library.
310
311config GPIO_HISI
312 tristate "HiSilicon GPIO controller driver"
313 depends on (ARM64 && ACPI) || COMPILE_TEST
314 select GPIO_GENERIC
315 select GPIOLIB_IRQCHIP
316 help
317 Say Y or M here to build support for the HiSilicon GPIO controller
318 driver GPIO block.
319 This GPIO controller supports double-edge interrupt and multi-core
320 concurrent access.
321
322config GPIO_HLWD
323 tristate "Nintendo Wii (Hollywood) GPIO"
324 depends on OF_GPIO
325 select GPIO_GENERIC
326 select GPIOLIB_IRQCHIP
327 help
328 Select this to support the GPIO controller of the Nintendo Wii.
329
330 If unsure, say N.
331
332config GPIO_ICH
333 tristate "Intel ICH GPIO"
334 depends on X86
335 depends on LPC_ICH
336 help
337 Say yes here to support the GPIO functionality of a number of Intel
338 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
339 ICH9, ICH10, Series 5/3400 (e.g. Ibex Peak), Series 6/C200 (e.g.
340 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
341
342 If unsure, say N.
343
344config GPIO_IOP
345 tristate "Intel IOP GPIO"
346 depends on ARCH_IOP32X || COMPILE_TEST
347 select GPIO_GENERIC
348 help
349 Say yes here to support the GPIO functionality of a number of Intel
350 IOP32X or IOP33X series of chips.
351
352 If unsure, say N.
353
354config GPIO_IXP4XX
355 bool "Intel IXP4xx GPIO"
356 depends on ARM # For <asm/mach-types.h>
357 depends on ARCH_IXP4XX
358 select GPIO_GENERIC
359 select GPIOLIB_IRQCHIP
360 select IRQ_DOMAIN_HIERARCHY
361 help
362 Say yes here to support the GPIO functionality of a number of Intel
363 IXP4xx series of chips.
364
365 If unsure, say N.
366config GPIO_LOGICVC
367 tristate "Xylon LogiCVC GPIO support"
368 depends on MFD_SYSCON && OF
369 help
370 Say yes here to support GPIO functionality of the Xylon LogiCVC
371 programmable logic block.
372
373config GPIO_LOONGSON
374 bool "Loongson-2/3 GPIO support"
375 depends on CPU_LOONGSON2EF || CPU_LOONGSON64
376 help
377 Driver for GPIO functionality on Loongson-2F/3A/3B processors.
378
379config GPIO_LPC18XX
380 tristate "NXP LPC18XX/43XX GPIO support"
381 default y if ARCH_LPC18XX
382 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
383 select IRQ_DOMAIN_HIERARCHY
384 help
385 Select this option to enable GPIO driver for
386 NXP LPC18XX/43XX devices.
387
388config GPIO_LPC32XX
389 tristate "NXP LPC32XX GPIO support"
390 depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST)
391 help
392 Select this option to enable GPIO driver for
393 NXP LPC32XX devices.
394
395config GPIO_MB86S7X
396 tristate "GPIO support for Fujitsu MB86S7x Platforms"
397 help
398 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
399
400config GPIO_MENZ127
401 tristate "MEN 16Z127 GPIO support"
402 depends on MCB
403 select GPIO_GENERIC
404 help
405 Say yes here to support the MEN 16Z127 GPIO Controller.
406
407config GPIO_MM_LANTIQ
408 bool "Lantiq Memory mapped GPIOs"
409 depends on LANTIQ && SOC_XWAY
410 help
411 This enables support for memory mapped GPIOs on the External Bus Unit
412 (EBU) found on Lantiq SoCs. The GPIOs are output only as they are
413 created by attaching a 16-bit latch to the bus.
414
415config GPIO_MPC5200
416 def_bool y
417 depends on PPC_MPC52xx
418
419config GPIO_MPC8XXX
420 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
421 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
422 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
423 COMPILE_TEST
424 select GPIO_GENERIC
425 select IRQ_DOMAIN
426 help
427 Say Y here if you're going to use hardware that connects to the
428 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
429
430config GPIO_MT7621
431 bool "Mediatek MT7621 GPIO Support"
432 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
433 depends on OF_GPIO
434 select GPIO_GENERIC
435 select GPIOLIB_IRQCHIP
436 help
437 Say yes here to support the Mediatek MT7621 SoC GPIO device.
438
439config GPIO_MVEBU
440 def_bool y
441 depends on PLAT_ORION || ARCH_MVEBU
442 depends on OF_GPIO
443 select GENERIC_IRQ_CHIP
444 select REGMAP_MMIO
445
446config GPIO_MXC
447 tristate "i.MX GPIO support"
448 depends on ARCH_MXC || COMPILE_TEST
449 select GPIO_GENERIC
450 select GENERIC_IRQ_CHIP
451
452config GPIO_MXS
453 bool "Freescale MXS GPIO support" if COMPILE_TEST
454 depends on ARCH_MXS || COMPILE_TEST
455 default y if ARCH_MXS
456 select GPIO_GENERIC
457 select GENERIC_IRQ_CHIP
458
459config GPIO_OCTEON
460 tristate "Cavium OCTEON GPIO"
461 depends on CAVIUM_OCTEON_SOC
462 default y
463 help
464 Say yes here to support the on-chip GPIO lines on the OCTEON
465 family of SOCs.
466
467config GPIO_OMAP
468 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
469 default y if ARCH_OMAP
470 depends on ARM
471 select GENERIC_IRQ_CHIP
472 select GPIOLIB_IRQCHIP
473 help
474 Say yes here to enable GPIO support for TI OMAP SoCs.
475
476config GPIO_PL061
477 tristate "PrimeCell PL061 GPIO support"
478 depends on ARM_AMBA
479 select IRQ_DOMAIN
480 select GPIOLIB_IRQCHIP
481 help
482 Say yes here to support the PrimeCell PL061 GPIO device.
483
484config GPIO_PMIC_EIC_SPRD
485 tristate "Spreadtrum PMIC EIC support"
486 depends on MFD_SC27XX_PMIC || COMPILE_TEST
487 depends on OF_GPIO
488 select GPIOLIB_IRQCHIP
489 help
490 Say yes here to support Spreadtrum PMIC EIC device.
491
492config GPIO_PXA
493 bool "PXA GPIO support"
494 depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST
495 help
496 Say yes here to support the PXA GPIO device.
497
498config GPIO_RCAR
499 tristate "Renesas R-Car and RZ/G GPIO support"
500 depends on ARCH_RENESAS || COMPILE_TEST
501 select GPIOLIB_IRQCHIP
502 help
503 Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs.
504
505config GPIO_RDA
506 bool "RDA Micro GPIO controller support"
507 depends on ARCH_RDA || COMPILE_TEST
508 depends on OF_GPIO
509 select GPIO_GENERIC
510 select GPIOLIB_IRQCHIP
511 help
512 Say Y here to support RDA Micro GPIO controller.
513
514config GPIO_REALTEK_OTTO
515 tristate "Realtek Otto GPIO support"
516 depends on MACH_REALTEK_RTL
517 default MACH_REALTEK_RTL
518 select GPIO_GENERIC
519 select GPIOLIB_IRQCHIP
520 help
521 The GPIO controller on the Otto MIPS platform supports up to two
522 banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs
523 are grouped in four 8-bit wide ports.
524
525 When built as a module, the module will be called realtek_otto_gpio.
526
527config GPIO_REG
528 bool
529 help
530 A 32-bit single register GPIO fixed in/out implementation. This
531 can be used to represent any register as a set of GPIO signals.
532
533config GPIO_ROCKCHIP
534 tristate "Rockchip GPIO support"
535 depends on ARCH_ROCKCHIP || COMPILE_TEST
536 select GENERIC_IRQ_CHIP
537 select GPIOLIB_IRQCHIP
538 default ARCH_ROCKCHIP
539 help
540 Say yes here to support GPIO on Rockchip SoCs.
541
542config GPIO_SAMA5D2_PIOBU
543 tristate "SAMA5D2 PIOBU GPIO support"
544 depends on MFD_SYSCON
545 depends on OF_GPIO
546 select GPIO_SYSCON
547 help
548 Say yes here to use the PIOBU pins as GPIOs.
549
550 PIOBU pins on the SAMA5D2 can be used as GPIOs.
551 The difference from regular GPIOs is that they
552 maintain their value during backup/self-refresh.
553
554config GPIO_SIFIVE
555 bool "SiFive GPIO support"
556 depends on OF_GPIO
557 select IRQ_DOMAIN_HIERARCHY
558 select GPIO_GENERIC
559 select GPIOLIB_IRQCHIP
560 select REGMAP_MMIO
561 help
562 Say yes here to support the GPIO device on SiFive SoCs.
563
564config GPIO_SIOX
565 tristate "SIOX GPIO support"
566 depends on SIOX
567 select GPIOLIB_IRQCHIP
568 help
569 Say yes here to support SIOX I/O devices. These are units connected
570 via a SIOX bus and have a number of fixed-direction I/O lines.
571
572config GPIO_SNPS_CREG
573 bool "Synopsys GPIO via CREG (Control REGisters) driver"
574 depends on ARC || COMPILE_TEST
575 depends on OF_GPIO
576 help
577 This driver supports GPIOs via CREG on various Synopsys SoCs.
578 This is a single-register MMIO GPIO driver for complex cases
579 where only several fields in register belong to GPIO lines and
580 each GPIO line owns a field with different length and on/off value.
581
582config GPIO_SPEAR_SPICS
583 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
584 depends on PLAT_SPEAR
585 select GENERIC_IRQ_CHIP
586 help
587 Say yes here to support ST SPEAr SPI Chip Select as GPIO device.
588
589config GPIO_SPRD
590 tristate "Spreadtrum GPIO support"
591 depends on ARCH_SPRD || COMPILE_TEST
592 depends on OF_GPIO
593 select GPIOLIB_IRQCHIP
594 help
595 Say yes here to support Spreadtrum GPIO device.
596
597config GPIO_STA2X11
598 bool "STA2x11/ConneXt GPIO support"
599 depends on MFD_STA2X11
600 select GENERIC_IRQ_CHIP
601 help
602 Say yes here to support the STA2x11/ConneXt GPIO device.
603 The GPIO module has 128 GPIO pins with alternate functions.
604
605config GPIO_STP_XWAY
606 bool "XWAY STP GPIOs"
607 depends on SOC_XWAY || COMPILE_TEST
608 depends on OF_GPIO
609 help
610 This enables support for the Serial To Parallel (STP) unit found on
611 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
612 that can be up to 24 bits. This peripheral is aimed at driving LEDs.
613 Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and
614 phy status.
615
616config GPIO_SYSCON
617 tristate "GPIO based on SYSCON"
618 depends on MFD_SYSCON && OF
619 help
620 Say yes here to support GPIO functionality though SYSCON driver.
621
622config GPIO_TB10X
623 bool
624 select GPIO_GENERIC
625 select GENERIC_IRQ_CHIP
626 select OF_GPIO
627
628config GPIO_TEGRA
629 tristate "NVIDIA Tegra GPIO support"
630 default ARCH_TEGRA
631 depends on ARCH_TEGRA || COMPILE_TEST
632 depends on OF_GPIO
633 select GPIOLIB_IRQCHIP
634 select IRQ_DOMAIN_HIERARCHY
635 help
636 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
637
638config GPIO_TEGRA186
639 tristate "NVIDIA Tegra186 GPIO support"
640 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC
641 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST
642 depends on OF_GPIO
643 select GPIOLIB_IRQCHIP
644 select IRQ_DOMAIN_HIERARCHY
645 help
646 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
647
648config GPIO_TS4800
649 tristate "TS-4800 DIO blocks and compatibles"
650 depends on OF_GPIO
651 depends on SOC_IMX51 || COMPILE_TEST
652 select GPIO_GENERIC
653 help
654 This driver support TS-4800 FPGA GPIO controllers.
655
656config GPIO_THUNDERX
657 tristate "Cavium ThunderX/OCTEON-TX GPIO"
658 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
659 depends on PCI_MSI
660 select GPIOLIB_IRQCHIP
661 select IRQ_DOMAIN_HIERARCHY
662 select IRQ_FASTEOI_HIERARCHY_HANDLERS
663 help
664 Say yes here to support the on-chip GPIO lines on the ThunderX
665 and OCTEON-TX families of SoCs.
666
667config GPIO_UNIPHIER
668 tristate "UniPhier GPIO support"
669 depends on ARCH_UNIPHIER || COMPILE_TEST
670 depends on OF_GPIO
671 select IRQ_DOMAIN_HIERARCHY
672 help
673 Say yes here to support UniPhier GPIOs.
674
675config GPIO_VF610
676 def_bool y
677 depends on ARCH_MXC && SOC_VF610
678 select GPIOLIB_IRQCHIP
679 help
680 Say yes here to support Vybrid vf610 GPIOs.
681
682config GPIO_VISCONTI
683 tristate "Toshiba Visconti GPIO support"
684 depends on ARCH_VISCONTI || COMPILE_TEST
685 depends on OF_GPIO
686 select GPIOLIB_IRQCHIP
687 select GPIO_GENERIC
688 select IRQ_DOMAIN_HIERARCHY
689 help
690 Say yes here to support GPIO on Tohisba Visconti.
691
692config GPIO_VR41XX
693 tristate "NEC VR4100 series General-purpose I/O Unit support"
694 depends on CPU_VR41XX
695 help
696 Say yes here to support the NEC VR4100 series General-purpose I/O Unit.
697
698config GPIO_VX855
699 tristate "VIA VX855/VX875 GPIO"
700 depends on (X86 || COMPILE_TEST) && PCI
701 select MFD_CORE
702 select MFD_VX855
703 help
704 Support access to the VX855/VX875 GPIO lines through the GPIO library.
705
706 This driver provides common support for accessing the device.
707 Additional drivers must be enabled in order to use the
708 functionality of the device.
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 && OF_GPIO
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 # Unconditional I/O space access
830
831config GPIO_104_DIO_48E
832 tristate "ACCES 104-DIO-48E GPIO support"
833 depends on PC104
834 select ISA_BUS_API
835 select GPIOLIB_IRQCHIP
836 help
837 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
838 104-DIO-24E). The base port addresses for the devices may be
839 configured via the base module parameter. The interrupt line numbers
840 for the devices may be configured via the irq module parameter.
841
842config GPIO_104_IDIO_16
843 tristate "ACCES 104-IDIO-16 GPIO support"
844 depends on PC104
845 select ISA_BUS_API
846 select GPIOLIB_IRQCHIP
847 help
848 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
849 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
850 base port addresses for the devices may be configured via the base
851 module parameter. The interrupt line numbers for the devices may be
852 configured via the irq module parameter.
853
854config GPIO_104_IDI_48
855 tristate "ACCES 104-IDI-48 GPIO support"
856 depends on PC104
857 select ISA_BUS_API
858 select GPIOLIB_IRQCHIP
859 help
860 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
861 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
862 the devices may be configured via the base module parameter. The
863 interrupt line numbers for the devices may be configured via the irq
864 module parameter.
865
866config GPIO_F7188X
867 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
868 help
869 This option enables support for GPIOs found on Fintek Super-I/O
870 chips F71869, F71869A, F71882FG, F71889F and F81866.
871
872 To compile this driver as a module, choose M here: the module will
873 be called f7188x-gpio.
874
875config GPIO_GPIO_MM
876 tristate "Diamond Systems GPIO-MM GPIO support"
877 depends on PC104
878 select ISA_BUS_API
879 help
880 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
881
882 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
883 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
884 support for these 48 channels of digital I/O.
885
886 The base port addresses for the devices may be configured via the base
887 array module parameter.
888
889config GPIO_IT87
890 tristate "IT87xx GPIO support"
891 help
892 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
893
894 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
895 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
896 well.
897
898 To compile this driver as a module, choose M here: the module will
899 be called gpio_it87.
900
901config GPIO_SCH
902 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
903 depends on (X86 || COMPILE_TEST) && ACPI
904 depends on LPC_SCH
905 select GPIOLIB_IRQCHIP
906 help
907 Say yes here to support GPIO interface on Intel Poulsbo SCH,
908 Intel Tunnel Creek processor, Intel Centerton processor or
909 Intel Quark X1000 SoC.
910
911 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
912 powered by the core power rail and are turned off during sleep
913 modes (S3 and higher). The remaining four GPIOs are powered by
914 the Intel SCH suspend power supply. These GPIOs remain
915 active during S3. The suspend-powered GPIOs can be used to wake the
916 system from the Suspend-to-RAM state.
917
918 The Intel Tunnel Creek processor has 5 GPIOs powered by the
919 core power rail and 9 from suspend power supply.
920
921 The Intel Centerton processor has a total of 30 GPIO pins.
922 Twenty-one are powered by the core power rail and 9 from the
923 suspend power supply.
924
925 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
926 power well and 6 from the suspend power well.
927
928config GPIO_SCH311X
929 tristate "SMSC SCH311x SuperI/O GPIO"
930 help
931 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
932 SCH3116 "Super I/O" chipsets.
933
934 To compile this driver as a module, choose M here: the module will
935 be called gpio-sch311x.
936
937config GPIO_TS5500
938 tristate "TS-5500 DIO blocks and compatibles"
939 depends on TS5500 || COMPILE_TEST
940 help
941 This driver supports Digital I/O exposed by pin blocks found on some
942 Technologic Systems platforms. It includes, but is not limited to, 3
943 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
944 LCD port.
945
946config GPIO_WINBOND
947 tristate "Winbond Super I/O GPIO support"
948 select ISA_BUS_API
949 help
950 This option enables support for GPIOs found on Winbond Super I/O
951 chips.
952 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
953 supported.
954
955 You will need to provide a module parameter "gpios", or a
956 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
957 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
958
959 To compile this driver as a module, choose M here: the module will
960 be called gpio-winbond.
961
962config GPIO_WS16C48
963 tristate "WinSystems WS16C48 GPIO support"
964 select ISA_BUS_API
965 select GPIOLIB_IRQCHIP
966 help
967 Enables GPIO support for the WinSystems WS16C48. The base port
968 addresses for the devices may be configured via the base module
969 parameter. The interrupt line numbers for the devices may be
970 configured via the irq module parameter.
971
972endmenu
973
974menu "I2C GPIO expanders"
975 depends on I2C
976
977config GPIO_ADP5588
978 tristate "ADP5588 I2C GPIO expander"
979 help
980 This option enables support for 18 GPIOs found
981 on Analog Devices ADP5588 GPIO Expanders.
982
983config GPIO_ADP5588_IRQ
984 bool "Interrupt controller support for ADP5588"
985 depends on GPIO_ADP5588=y
986 select GPIOLIB_IRQCHIP
987 help
988 Say yes here to enable the adp5588 to be used as an interrupt
989 controller. It requires the driver to be built in the kernel.
990
991config GPIO_ADNP
992 tristate "Avionic Design N-bit GPIO expander"
993 depends on OF_GPIO
994 select GPIOLIB_IRQCHIP
995 help
996 This option enables support for N GPIOs found on Avionic Design
997 I2C GPIO expanders. The register space will be extended by powers
998 of two, so the controller will need to accommodate for that. For
999 example: if a controller provides 48 pins, 6 registers will be
1000 enough to represent all pins, but the driver will assume a
1001 register layout for 64 pins (8 registers).
1002
1003config GPIO_GW_PLD
1004 tristate "Gateworks PLD GPIO Expander"
1005 depends on OF_GPIO
1006 help
1007 Say yes here to provide access to the Gateworks I2C PLD GPIO
1008 Expander. This is used at least on the Cambria GW2358-4.
1009
1010config GPIO_MAX7300
1011 tristate "Maxim MAX7300 GPIO expander"
1012 select GPIO_MAX730X
1013 help
1014 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
1015
1016config GPIO_MAX732X
1017 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
1018 help
1019 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
1020 Port Expanders. Each IO port on these chips has a fixed role of
1021 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
1022 Input and Output (designed by 'P'). The combinations are listed
1023 below:
1024
1025 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
1026 max7322 (4I4O), max7323 (4P4O)
1027
1028 16 bits: max7324 (8I8O), max7325 (8P8O),
1029 max7326 (4I12O), max7327 (4P12O)
1030
1031 Board setup code must specify the model to use, and the start
1032 number for these GPIOs.
1033
1034config GPIO_MAX732X_IRQ
1035 bool "Interrupt controller support for MAX732x"
1036 depends on GPIO_MAX732X=y
1037 select GPIOLIB_IRQCHIP
1038 help
1039 Say yes here to enable the max732x to be used as an interrupt
1040 controller. It requires the driver to be built in the kernel.
1041
1042config GPIO_PCA953X
1043 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
1044 select REGMAP_I2C
1045 help
1046 Say yes here to provide access to several register-oriented
1047 SMBus I/O expanders, made mostly by NXP or TI. Compatible
1048 models include:
1049
1050 4 bits: pca9536, pca9537
1051
1052 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
1053 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
1054
1055 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
1056 tca6416
1057
1058 24 bits: tca6424
1059
1060 40 bits: pca9505, pca9698
1061
1062config GPIO_PCA953X_IRQ
1063 bool "Interrupt controller support for PCA953x"
1064 depends on GPIO_PCA953X
1065 select GPIOLIB_IRQCHIP
1066 help
1067 Say yes here to enable the pca953x to be used as an interrupt
1068 controller.
1069
1070config GPIO_PCA9570
1071 tristate "PCA9570 4-Bit I2C GPO expander"
1072 help
1073 Say yes here to enable the GPO driver for the NXP PCA9570 chip.
1074
1075 To compile this driver as a module, choose M here: the module will
1076 be called gpio-pca9570.
1077
1078config GPIO_PCF857X
1079 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
1080 select GPIOLIB_IRQCHIP
1081 select IRQ_DOMAIN
1082 help
1083 Say yes here to provide access to most "quasi-bidirectional" I2C
1084 GPIO expanders used for additional digital outputs or inputs.
1085 Most of these parts are from NXP, though TI is a second source for
1086 some of them. Compatible models include:
1087
1088 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
1089 pca9670, pca9672, pca9674, pca9674a,
1090 max7328, max7329
1091
1092 16 bits: pcf8575, pcf8575c, pca8575,
1093 pca9671, pca9673, pca9675
1094
1095 Your board setup code will need to declare the expanders in
1096 use, and assign numbers to the GPIOs they expose. Those GPIOs
1097 can then be used from drivers and other kernel code, just like
1098 other GPIOs, but only accessible from task contexts.
1099
1100 This driver provides an in-kernel interface to those GPIOs using
1101 platform-neutral GPIO calls.
1102
1103config GPIO_TPIC2810
1104 tristate "TPIC2810 8-Bit I2C GPO expander"
1105 help
1106 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
1107
1108 To compile this driver as a module, choose M here: the module will
1109 be called gpio-tpic2810.
1110
1111config GPIO_TS4900
1112 tristate "Technologic Systems FPGA I2C GPIO"
1113 depends on SOC_IMX6 || COMPILE_TEST
1114 select REGMAP_I2C
1115 help
1116 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
1117 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
1118
1119endmenu
1120
1121menu "MFD GPIO expanders"
1122
1123config GPIO_ADP5520
1124 tristate "GPIO Support for ADP5520 PMIC"
1125 depends on PMIC_ADP5520
1126 help
1127 This option enables support for on-chip GPIO found
1128 on Analog Devices ADP5520 PMICs.
1129
1130config GPIO_ALTERA_A10SR
1131 tristate "Altera Arria10 System Resource GPIO"
1132 depends on MFD_ALTERA_A10SR
1133 help
1134 Driver for Arria10 Development Kit GPIO expansion which
1135 includes reads of pushbuttons and DIP switches as well
1136 as writes to LEDs.
1137
1138config GPIO_ARIZONA
1139 tristate "Wolfson Microelectronics Arizona class devices"
1140 depends on MFD_ARIZONA
1141 help
1142 Support for GPIOs on Wolfson Arizona class devices.
1143
1144config GPIO_BD71815
1145 tristate "ROHM BD71815 PMIC GPIO support"
1146 depends on MFD_ROHM_BD71828
1147 help
1148 Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs
1149 available on the ROHM PMIC.
1150
1151 This driver can also be built as a module. If so, the module
1152 will be called gpio-bd71815.
1153
1154config GPIO_BD71828
1155 tristate "ROHM BD71828 GPIO support"
1156 depends on MFD_ROHM_BD71828
1157 help
1158 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs
1159 available on the ROHM PMIC in total. The GPIOs are limited to
1160 outputs only and pins must be configured to GPIO outputs by
1161 OTP. Enable this only if you want to use these pins as outputs.
1162
1163 This driver can also be built as a module. If so, the module
1164 will be called gpio-bd71828.
1165
1166config GPIO_BD9571MWV
1167 tristate "ROHM BD9571 GPIO support"
1168 depends on MFD_BD9571MWV
1169 help
1170 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
1171 available on the ROHM PMIC in total, both of which can also
1172 generate interrupts.
1173
1174 This driver can also be built as a module. If so, the module
1175 will be called gpio-bd9571mwv.
1176
1177config GPIO_CRYSTAL_COVE
1178 tristate "GPIO support for Crystal Cove PMIC"
1179 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1180 select GPIOLIB_IRQCHIP
1181 help
1182 Support for GPIO pins on Crystal Cove PMIC.
1183
1184 Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC
1185 inside.
1186
1187 This driver can also be built as a module. If so, the module will be
1188 called gpio-crystalcove.
1189
1190config GPIO_CS5535
1191 tristate "AMD CS5535/CS5536 GPIO support"
1192 depends on X86 || MIPS || COMPILE_TEST
1193 depends on MFD_CS5535
1194 help
1195 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1196 can be used for quite a number of things. The CS5535/6 is found on
1197 AMD Geode and Lemote Yeeloong devices.
1198
1199 If unsure, say N.
1200
1201config GPIO_DA9052
1202 tristate "Dialog DA9052 GPIO"
1203 depends on PMIC_DA9052
1204 help
1205 Say yes here to enable the GPIO driver for the DA9052 chip.
1206
1207config GPIO_DA9055
1208 tristate "Dialog Semiconductor DA9055 GPIO"
1209 depends on MFD_DA9055
1210 help
1211 Say yes here to enable the GPIO driver for the DA9055 chip.
1212
1213 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1214 be controlled by this driver.
1215
1216 If driver is built as a module it will be called gpio-da9055.
1217
1218config GPIO_DLN2
1219 tristate "Diolan DLN2 GPIO support"
1220 depends on MFD_DLN2
1221 select GPIOLIB_IRQCHIP
1222
1223 help
1224 Select this option to enable GPIO driver for the Diolan DLN2
1225 board.
1226
1227 This driver can also be built as a module. If so, the module
1228 will be called gpio-dln2.
1229
1230config HTC_EGPIO
1231 bool "HTC EGPIO support"
1232 depends on ARM
1233 help
1234 This driver supports the CPLD egpio chip present on
1235 several HTC phones. It provides basic support for input
1236 pins, output pins, and IRQs.
1237
1238config GPIO_JANZ_TTL
1239 tristate "Janz VMOD-TTL Digital IO Module"
1240 depends on MFD_JANZ_CMODIO
1241 help
1242 This enables support for the Janz VMOD-TTL Digital IO module.
1243 This driver provides support for driving the pins in output
1244 mode only. Input mode is not supported.
1245
1246config GPIO_KEMPLD
1247 tristate "Kontron ETX / COMexpress GPIO"
1248 depends on MFD_KEMPLD
1249 help
1250 This enables support for the PLD GPIO interface on some Kontron ETX
1251 and COMexpress (ETXexpress) modules.
1252
1253 This driver can also be built as a module. If so, the module will be
1254 called gpio-kempld.
1255
1256config GPIO_LP3943
1257 tristate "TI/National Semiconductor LP3943 GPIO expander"
1258 depends on MFD_LP3943
1259 help
1260 GPIO driver for LP3943 MFD.
1261 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1262 Open drain outputs are required for this usage.
1263
1264config GPIO_LP873X
1265 tristate "TI LP873X GPO"
1266 depends on MFD_TI_LP873X
1267 help
1268 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1269 on LP873X PMICs.
1270
1271 This driver can also be built as a module. If so, the module will be
1272 called gpio-lp873x.
1273
1274config GPIO_LP87565
1275 tristate "TI LP87565 GPIO"
1276 depends on MFD_TI_LP87565
1277 help
1278 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1279 on LP87565 PMICs.
1280
1281 This driver can also be built as a module. If so, the module will be
1282 called gpio-lp87565.
1283
1284config GPIO_MADERA
1285 tristate "Cirrus Logic Madera class codecs"
1286 depends on PINCTRL_MADERA
1287 help
1288 Support for GPIOs on Cirrus Logic Madera class codecs.
1289
1290config GPIO_MAX77620
1291 tristate "GPIO support for PMIC MAX77620 and MAX20024"
1292 depends on MFD_MAX77620
1293 select GPIOLIB_IRQCHIP
1294 help
1295 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1296 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1297 driver also provides interrupt support for each of the GPIOs.
1298 Say yes here to enable the max77620 to be used as GPIO controller.
1299
1300config GPIO_MAX77650
1301 tristate "Maxim MAX77650/77651 GPIO support"
1302 depends on MFD_MAX77650
1303 help
1304 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1305 These chips have a single pin that can be configured as GPIO.
1306
1307config GPIO_PALMAS
1308 bool "TI PALMAS series PMICs GPIO"
1309 depends on MFD_PALMAS
1310 help
1311 Select this option to enable GPIO driver for the TI PALMAS
1312 series chip family.
1313
1314config GPIO_RC5T583
1315 bool "RICOH RC5T583 GPIO"
1316 depends on MFD_RC5T583
1317 help
1318 Select this option to enable GPIO driver for the Ricoh RC5T583
1319 chip family.
1320 This driver provides the support for driving/reading the GPIO pins
1321 of RC5T583 device through standard GPIO library.
1322
1323config GPIO_SL28CPLD
1324 tristate "Kontron sl28cpld GPIO support"
1325 depends on MFD_SL28CPLD || COMPILE_TEST
1326 select GPIO_REGMAP
1327 select GPIOLIB_IRQCHIP
1328 select REGMAP_IRQ
1329 help
1330 This enables support for the GPIOs found on the Kontron sl28 CPLD.
1331
1332 This driver can also be built as a module. If so, the module will be
1333 called gpio-sl28cpld.
1334
1335config GPIO_STMPE
1336 bool "STMPE GPIOs"
1337 depends on MFD_STMPE
1338 depends on OF_GPIO
1339 select GPIOLIB_IRQCHIP
1340 help
1341 This enables support for the GPIOs found on the STMPE I/O
1342 Expanders.
1343
1344config GPIO_TC3589X
1345 bool "TC3589X GPIOs"
1346 depends on MFD_TC3589X
1347 depends on OF_GPIO
1348 select GPIOLIB_IRQCHIP
1349 help
1350 This enables support for the GPIOs found on the TC3589X
1351 I/O Expander.
1352
1353config GPIO_TIMBERDALE
1354 bool "Support for timberdale GPIO IP"
1355 depends on MFD_TIMBERDALE
1356 help
1357 Add support for the GPIO IP in the timberdale FPGA.
1358
1359config GPIO_TN48M_CPLD
1360 tristate "Delta Networks TN48M switch CPLD GPIO driver"
1361 depends on MFD_TN48M_CPLD
1362 select GPIO_REGMAP
1363 help
1364 This enables support for the GPIOs found on the Delta
1365 Networks TN48M switch Lattice CPLD. It provides 12 pins in total,
1366 they are input-only or output-only type.
1367
1368 This driver can also be built as a module. If so, the
1369 module will be called gpio-tn48m.
1370
1371config GPIO_TPS65086
1372 tristate "TI TPS65086 GPO"
1373 depends on MFD_TPS65086
1374 help
1375 This driver supports the GPO on TI TPS65086x PMICs.
1376
1377config GPIO_TPS65218
1378 tristate "TPS65218 GPIO"
1379 depends on MFD_TPS65218
1380 help
1381 Select this option to enable GPIO driver for the TPS65218
1382 chip family.
1383
1384config GPIO_TPS6586X
1385 bool "TPS6586X GPIO"
1386 depends on MFD_TPS6586X
1387 help
1388 Select this option to enable GPIO driver for the TPS6586X
1389 chip family.
1390
1391config GPIO_TPS65910
1392 bool "TPS65910 GPIO"
1393 depends on MFD_TPS65910
1394 help
1395 Select this option to enable GPIO driver for the TPS65910
1396 chip family.
1397
1398config GPIO_TPS65912
1399 tristate "TI TPS65912 GPIO"
1400 depends on MFD_TPS65912
1401 help
1402 This driver supports TPS65912 GPIO chip.
1403
1404config GPIO_TPS68470
1405 tristate "TPS68470 GPIO"
1406 depends on INTEL_SKL_INT3472
1407 help
1408 Select this option to enable GPIO driver for the TPS68470
1409 chip family.
1410 There are 7 GPIOs and few sensor-related GPIOs supported
1411 by the TPS68470. While the 7 GPIOs can be configured as
1412 input or output as appropriate, the sensor related GPIOs
1413 are "output only" GPIOs.
1414
1415config GPIO_TQMX86
1416 tristate "TQ-Systems QTMX86 GPIO"
1417 depends on MFD_TQMX86 || COMPILE_TEST
1418 depends on HAS_IOPORT_MAP
1419 select GPIOLIB_IRQCHIP
1420 help
1421 This driver supports GPIO on the TQMX86 IO controller.
1422
1423config GPIO_TWL4030
1424 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1425 depends on TWL4030_CORE
1426 help
1427 Say yes here to access the GPIO signals of various multi-function
1428 power management chips from Texas Instruments.
1429
1430config GPIO_TWL6040
1431 tristate "TWL6040 GPO"
1432 depends on TWL6040_CORE
1433 help
1434 Say yes here to access the GPO signals of twl6040
1435 audio chip from Texas Instruments.
1436
1437config GPIO_UCB1400
1438 tristate "Philips UCB1400 GPIO"
1439 depends on UCB1400_CORE
1440 help
1441 This enables support for the Philips UCB1400 GPIO pins.
1442 The UCB1400 is an AC97 audio codec.
1443
1444config GPIO_WHISKEY_COVE
1445 tristate "GPIO support for Whiskey Cove PMIC"
1446 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1447 select GPIOLIB_IRQCHIP
1448 help
1449 Support for GPIO pins on Whiskey Cove PMIC.
1450
1451 Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC
1452 inside.
1453
1454 This driver can also be built as a module. If so, the module will be
1455 called gpio-wcove.
1456
1457config GPIO_WM831X
1458 tristate "WM831x GPIOs"
1459 depends on MFD_WM831X
1460 help
1461 Say yes here to access the GPIO signals of WM831x power management
1462 chips from Wolfson Microelectronics.
1463
1464config GPIO_WM8350
1465 tristate "WM8350 GPIOs"
1466 depends on MFD_WM8350
1467 help
1468 Say yes here to access the GPIO signals of WM8350 power management
1469 chips from Wolfson Microelectronics.
1470
1471config GPIO_WM8994
1472 tristate "WM8994 GPIOs"
1473 depends on MFD_WM8994
1474 help
1475 Say yes here to access the GPIO signals of WM8994 audio hub
1476 CODECs from Wolfson Microelectronics.
1477
1478endmenu
1479
1480menu "PCI GPIO expanders"
1481 depends on PCI
1482
1483config GPIO_AMD8111
1484 tristate "AMD 8111 GPIO driver"
1485 depends on X86 || COMPILE_TEST
1486 depends on HAS_IOPORT_MAP
1487 help
1488 The AMD 8111 southbridge contains 32 GPIO pins which can be used.
1489
1490 Note that usually system firmware/ACPI handles GPIO pins on their
1491 own and users might easily break their systems with uncareful usage
1492 of this driver!
1493
1494 If unsure, say N
1495
1496config GPIO_BT8XX
1497 tristate "BT8XX GPIO abuser"
1498 depends on VIDEO_BT848=n
1499 help
1500 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1501 as a cheap PCI GPIO card.
1502
1503 This chip can be found on Miro, Hauppauge and STB TV-cards.
1504
1505 The card needs to be physically altered for using it as a
1506 GPIO card. For more information on how to build a GPIO card
1507 from a BT8xx TV card, see the documentation file at
1508 Documentation/driver-api/gpio/bt8xxgpio.rst
1509
1510 If unsure, say N.
1511
1512config GPIO_MERRIFIELD
1513 tristate "Intel Merrifield GPIO support"
1514 depends on X86_INTEL_MID
1515 select GPIOLIB_IRQCHIP
1516 help
1517 Say Y here to support Intel Merrifield GPIO.
1518
1519config GPIO_MLXBF
1520 tristate "Mellanox BlueField SoC GPIO"
1521 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1522 select GPIO_GENERIC
1523 help
1524 Say Y here if you want GPIO support on Mellanox BlueField SoC.
1525
1526config GPIO_MLXBF2
1527 tristate "Mellanox BlueField 2 SoC GPIO"
1528 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1529 select GPIO_GENERIC
1530 help
1531 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC.
1532
1533config GPIO_ML_IOH
1534 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1535 depends on X86 || COMPILE_TEST
1536 select GENERIC_IRQ_CHIP
1537 help
1538 ML7213 is companion chip for Intel Atom E6xx series.
1539 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output
1540 Hub) which is for IVI (In-Vehicle Infotainment) use.
1541 This driver can access the IOH's GPIO device.
1542
1543config GPIO_PCH
1544 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO"
1545 depends on X86_32 || MIPS || COMPILE_TEST
1546 select GENERIC_IRQ_CHIP
1547 help
1548 This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff,
1549 which is an IOH (Input/Output Hub) for x86 embedded processor.
1550 This driver can access PCH GPIO device.
1551
1552 This driver also can be used for LAPIS Semiconductor IOH (Input/
1553 Output Hub), ML7223 and ML7831.
1554 ML7223 IOH is for MP (Media Phone) use.
1555 ML7831 IOH is for general purpose use.
1556 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1557 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1558
1559config GPIO_PCI_IDIO_16
1560 tristate "ACCES PCI-IDIO-16 GPIO support"
1561 select GPIOLIB_IRQCHIP
1562 help
1563 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1564 generated when any of the inputs change state (low to high or high to
1565 low). Input filter control is not supported by this driver, and the
1566 input filters are deactivated by this driver.
1567
1568config GPIO_PCIE_IDIO_24
1569 tristate "ACCES PCIe-IDIO-24 GPIO support"
1570 select GPIOLIB_IRQCHIP
1571 help
1572 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1573 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1574 when any of the inputs change state (low to high or high to low).
1575 Input filter control is not supported by this driver, and the input
1576 filters are deactivated by this driver.
1577
1578config GPIO_RDC321X
1579 tristate "RDC R-321x GPIO support"
1580 select MFD_CORE
1581 select MFD_RDC321X
1582 help
1583 Support for the RDC R321x SoC GPIOs over southbridge
1584 PCI configuration space.
1585
1586config GPIO_SODAVILLE
1587 bool "Intel Sodaville GPIO support"
1588 depends on X86 && OF
1589 select GPIO_GENERIC
1590 select GENERIC_IRQ_CHIP
1591 help
1592 Say Y here to support Intel Sodaville GPIO.
1593
1594endmenu
1595
1596menu "SPI GPIO expanders"
1597 depends on SPI_MASTER
1598
1599config GPIO_74X164
1600 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1601 depends on OF_GPIO
1602 help
1603 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1604 shift registers. This driver can be used to provide access
1605 to more GPIO outputs.
1606
1607config GPIO_MAX3191X
1608 tristate "Maxim MAX3191x industrial serializer"
1609 select CRC8
1610 help
1611 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1612 MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1613 chip to make 8 digital 24V inputs available via SPI. Supports
1614 CRC checksums to guard against electromagnetic interference,
1615 as well as undervoltage and overtemperature detection.
1616
1617config GPIO_MAX7301
1618 tristate "Maxim MAX7301 GPIO expander"
1619 select GPIO_MAX730X
1620 help
1621 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1622
1623config GPIO_MC33880
1624 tristate "Freescale MC33880 high-side/low-side switch"
1625 help
1626 SPI driver for Freescale MC33880 high-side/low-side switch.
1627 This provides GPIO interface supporting inputs and outputs.
1628
1629config GPIO_PISOSR
1630 tristate "Generic parallel-in/serial-out shift register"
1631 help
1632 GPIO driver for SPI compatible parallel-in/serial-out shift
1633 registers. These are input only devices.
1634
1635config GPIO_XRA1403
1636 tristate "EXAR XRA1403 16-bit GPIO expander"
1637 select REGMAP_SPI
1638 help
1639 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1640
1641config GPIO_MOXTET
1642 tristate "Turris Mox Moxtet bus GPIO expander"
1643 depends on MOXTET
1644 help
1645 Say yes here if you are building for the Turris Mox router.
1646 This is the driver needed for configuring the GPIOs via the Moxtet
1647 bus. For example the Mox module with SFP cage needs this driver
1648 so that phylink can use corresponding GPIOs.
1649
1650endmenu
1651
1652menu "USB GPIO expanders"
1653 depends on USB
1654
1655config GPIO_VIPERBOARD
1656 tristate "Viperboard GPIO a & b support"
1657 depends on MFD_VIPERBOARD
1658 help
1659 Say yes here to access the GPIO signals of Nano River
1660 Technologies Viperboard. There are two GPIO chips on the
1661 board: gpioa and gpiob.
1662 See viperboard API specification and Nano
1663 River Tech's viperboard.h for detailed meaning
1664 of the module parameters.
1665
1666endmenu
1667
1668menu "Virtual GPIO drivers"
1669
1670config GPIO_AGGREGATOR
1671 tristate "GPIO Aggregator"
1672 help
1673 Say yes here to enable the GPIO Aggregator, which provides a way to
1674 aggregate existing GPIO lines into a new virtual GPIO chip.
1675 This can serve the following purposes:
1676 - Assign permissions for a collection of GPIO lines to a user,
1677 - Export a collection of GPIO lines to a virtual machine,
1678 - Provide a generic driver for a GPIO-operated device in an
1679 industrial control context, to be operated from userspace using
1680 the GPIO chardev interface.
1681
1682config GPIO_MOCKUP
1683 tristate "GPIO Testing Driver"
1684 select IRQ_SIM
1685 help
1686 This enables GPIO Testing driver, which provides a way to test GPIO
1687 subsystem through sysfs (or char device) and debugfs.
1688 User could use it through the script in
1689 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1690 it.
1691
1692config GPIO_VIRTIO
1693 tristate "VirtIO GPIO support"
1694 depends on VIRTIO
1695 select GPIOLIB_IRQCHIP
1696 help
1697 Say Y here to enable guest support for virtio-based GPIO controllers.
1698
1699 These virtual GPIOs can be routed to real GPIOs or attached to
1700 simulators on the host (like QEMU).
1701
1702config GPIO_SIM
1703 tristate "GPIO Simulator Module"
1704 select IRQ_SIM
1705 select CONFIGFS_FS
1706 help
1707 This enables the GPIO simulator - a configfs-based GPIO testing
1708 driver.
1709
1710endmenu
1711
1712endif