Loading...
1#
2# GPIO infrastructure and drivers
3#
4
5config ARCH_HAVE_CUSTOM_GPIO_H
6 bool
7 help
8 Selecting this config option from the architecture Kconfig allows
9 the architecture to provide a custom asm/gpio.h implementation
10 overriding the default implementations. New uses of this are
11 strongly discouraged.
12
13config ARCH_WANT_OPTIONAL_GPIOLIB
14 bool
15 help
16 Select this config option from the architecture Kconfig, if
17 it is possible to use gpiolib on the architecture, but let the
18 user decide whether to actually build it or not.
19 Select this instead of ARCH_REQUIRE_GPIOLIB, if your architecture does
20 not depend on GPIOs being available, but rather let the user
21 decide whether he needs it or not.
22
23config ARCH_REQUIRE_GPIOLIB
24 bool
25 select GPIOLIB
26 help
27 Platforms select gpiolib if they use this infrastructure
28 for all their GPIOs, usually starting with ones integrated
29 into SOC processors.
30 Selecting this from the architecture code will cause the gpiolib
31 code to always get built in.
32
33
34menuconfig GPIOLIB
35 bool "GPIO Support"
36 depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB
37 help
38 This enables GPIO support through the generic GPIO library.
39 You only need to enable this, if you also want to enable
40 one or more of the GPIO drivers below.
41
42 If unsure, say N.
43
44if GPIOLIB
45
46config GPIO_DEVRES
47 def_bool y
48 depends on HAS_IOMEM
49
50config OF_GPIO
51 def_bool y
52 depends on OF
53
54config GPIO_ACPI
55 def_bool y
56 depends on ACPI
57
58config GPIOLIB_IRQCHIP
59 select IRQ_DOMAIN
60 bool
61
62config DEBUG_GPIO
63 bool "Debug GPIO calls"
64 depends on DEBUG_KERNEL
65 help
66 Say Y here to add some extra checks and diagnostics to GPIO calls.
67 These checks help ensure that GPIOs have been properly initialized
68 before they are used, and that sleeping calls are not made from
69 non-sleeping contexts. They can make bitbanged serial protocols
70 slower. The diagnostics help catch the type of setup errors
71 that are most common when setting up new platforms or boards.
72
73config GPIO_SYSFS
74 bool "/sys/class/gpio/... (sysfs interface)"
75 depends on SYSFS
76 help
77 Say Y here to add a sysfs interface for GPIOs.
78
79 This is mostly useful to work around omissions in a system's
80 kernel support. Those are common in custom and semicustom
81 hardware assembled using standard kernels with a minimum of
82 custom patches. In those cases, userspace code may import
83 a given GPIO from the kernel, if no kernel driver requested it.
84
85 Kernel drivers may also request that a particular GPIO be
86 exported to userspace; this can be useful when debugging.
87
88config GPIO_GENERIC
89 tristate
90
91# put drivers in the right section, in alphabetical order
92
93# This symbol is selected by both I2C and SPI expanders
94config GPIO_MAX730X
95 tristate
96
97menu "Memory mapped GPIO drivers"
98
99config GPIO_74XX_MMIO
100 tristate "GPIO driver for 74xx-ICs with MMIO access"
101 depends on OF_GPIO
102 select GPIO_GENERIC
103 help
104 Say yes here to support GPIO functionality for 74xx-compatible ICs
105 with MMIO access. Compatible models include:
106 1 bit: 741G125 (Input), 741G74 (Output)
107 2 bits: 742G125 (Input), 7474 (Output)
108 4 bits: 74125 (Input), 74175 (Output)
109 6 bits: 74365 (Input), 74174 (Output)
110 8 bits: 74244 (Input), 74273 (Output)
111 16 bits: 741624 (Input), 7416374 (Output)
112
113config GPIO_ALTERA
114 tristate "Altera GPIO"
115 depends on OF_GPIO
116 select GPIOLIB_IRQCHIP
117 help
118 Say Y or M here to build support for the Altera PIO device.
119
120 If driver is built as a module it will be called gpio-altera.
121
122config GPIO_AMDPT
123 tristate "AMD Promontory GPIO support"
124 depends on ACPI
125 help
126 driver for GPIO functionality on Promontory IOHub
127 Require ACPI ASL code to enumerate as a platform device.
128
129config GPIO_ATH79
130 tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
131 default y if ATH79
132 depends on ATH79 || COMPILE_TEST
133 select GPIO_GENERIC
134 select GPIOLIB_IRQCHIP
135 help
136 Select this option to enable GPIO driver for
137 Atheros AR71XX/AR724X/AR913X SoC devices.
138
139config GPIO_BCM_KONA
140 bool "Broadcom Kona GPIO"
141 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
142 help
143 Turn on GPIO support for Broadcom "Kona" chips.
144
145config GPIO_BRCMSTB
146 tristate "BRCMSTB GPIO support"
147 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
148 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
149 select GPIO_GENERIC
150 select GPIOLIB_IRQCHIP
151 help
152 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
153
154config GPIO_CLPS711X
155 tristate "CLPS711X GPIO support"
156 depends on ARCH_CLPS711X || COMPILE_TEST
157 select GPIO_GENERIC
158 help
159 Say yes here to support GPIO on CLPS711X SoCs.
160
161config GPIO_DAVINCI
162 bool "TI Davinci/Keystone GPIO support"
163 default y if ARCH_DAVINCI
164 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
165 help
166 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
167
168config GPIO_DWAPB
169 tristate "Synopsys DesignWare APB GPIO driver"
170 select GPIO_GENERIC
171 select GENERIC_IRQ_CHIP
172 help
173 Say Y or M here to build support for the Synopsys DesignWare APB
174 GPIO block.
175
176config GPIO_EM
177 tristate "Emma Mobile GPIO"
178 depends on ARM && OF_GPIO
179 help
180 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
181
182config GPIO_EP93XX
183 def_bool y
184 depends on ARCH_EP93XX
185 select GPIO_GENERIC
186
187config GPIO_ETRAXFS
188 bool "Axis ETRAX FS General I/O"
189 depends on CRIS || COMPILE_TEST
190 depends on OF
191 select GPIO_GENERIC
192 select GPIOLIB_IRQCHIP
193 help
194 Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.
195
196config GPIO_GE_FPGA
197 bool "GE FPGA based GPIO"
198 depends on GE_FPGA
199 select GPIO_GENERIC
200 help
201 Support for common GPIO functionality provided on some GE Single Board
202 Computers.
203
204 This driver provides basic support (configure as input or output, read
205 and write pin state) for GPIO implemented in a number of GE single
206 board computers.
207
208config GPIO_GENERIC_PLATFORM
209 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
210 select GPIO_GENERIC
211 help
212 Say yes here to support basic platform_device memory-mapped GPIO controllers.
213
214config GPIO_GRGPIO
215 tristate "Aeroflex Gaisler GRGPIO support"
216 depends on OF
217 select GPIO_GENERIC
218 select IRQ_DOMAIN
219 help
220 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
221 VHDL IP core library.
222
223config GPIO_ICH
224 tristate "Intel ICH GPIO"
225 depends on PCI && X86
226 select MFD_CORE
227 select LPC_ICH
228 help
229 Say yes here to support the GPIO functionality of a number of Intel
230 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
231 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
232 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
233
234 If unsure, say N.
235
236config GPIO_IOP
237 tristate "Intel IOP GPIO"
238 depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
239 help
240 Say yes here to support the GPIO functionality of a number of Intel
241 IOP32X or IOP33X.
242
243 If unsure, say N.
244
245config GPIO_LOONGSON
246 bool "Loongson-2/3 GPIO support"
247 depends on CPU_LOONGSON2 || CPU_LOONGSON3
248 help
249 driver for GPIO functionality on Loongson-2F/3A/3B processors.
250
251config GPIO_LPC18XX
252 bool "NXP LPC18XX/43XX GPIO support"
253 default y if ARCH_LPC18XX
254 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
255 help
256 Select this option to enable GPIO driver for
257 NXP LPC18XX/43XX devices.
258
259config GPIO_LYNXPOINT
260 tristate "Intel Lynxpoint GPIO support"
261 depends on ACPI && X86
262 select GPIOLIB_IRQCHIP
263 help
264 driver for GPIO functionality on Intel Lynxpoint PCH chipset
265 Requires ACPI device enumeration code to set up a platform device.
266
267config GPIO_MB86S7X
268 bool "GPIO support for Fujitsu MB86S7x Platforms"
269 depends on ARCH_MB86S7X || COMPILE_TEST
270 help
271 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
272
273config GPIO_MENZ127
274 tristate "MEN 16Z127 GPIO support"
275 depends on MCB
276 select GPIO_GENERIC
277 help
278 Say yes here to support the MEN 16Z127 GPIO Controller
279
280config GPIO_MM_LANTIQ
281 bool "Lantiq Memory mapped GPIOs"
282 depends on LANTIQ && SOC_XWAY
283 help
284 This enables support for memory mapped GPIOs on the External Bus Unit
285 (EBU) found on Lantiq SoCs. The gpios are output only as they are
286 created by attaching a 16bit latch to the bus.
287
288config GPIO_MOXART
289 bool "MOXART GPIO support"
290 depends on ARCH_MOXART || COMPILE_TEST
291 select GPIO_GENERIC
292 help
293 Select this option to enable GPIO driver for
294 MOXA ART SoC devices.
295
296config GPIO_MPC5200
297 def_bool y
298 depends on PPC_MPC52xx
299
300config GPIO_MPC8XXX
301 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
302 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
303 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
304 COMPILE_TEST
305 select GPIO_GENERIC
306 help
307 Say Y here if you're going to use hardware that connects to the
308 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
309
310config GPIO_MVEBU
311 def_bool y
312 depends on PLAT_ORION
313 depends on OF
314 select GENERIC_IRQ_CHIP
315
316config GPIO_MXC
317 def_bool y
318 depends on ARCH_MXC
319 select GPIO_GENERIC
320 select GENERIC_IRQ_CHIP
321
322config GPIO_MXS
323 def_bool y
324 depends on ARCH_MXS
325 select GPIO_GENERIC
326 select GENERIC_IRQ_CHIP
327
328config GPIO_OCTEON
329 tristate "Cavium OCTEON GPIO"
330 depends on GPIOLIB && CAVIUM_OCTEON_SOC
331 default y
332 help
333 Say yes here to support the on-chip GPIO lines on the OCTEON
334 family of SOCs.
335
336config GPIO_OMAP
337 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
338 default y if ARCH_OMAP
339 depends on ARM
340 select GENERIC_IRQ_CHIP
341 select GPIOLIB_IRQCHIP
342 help
343 Say yes here to enable GPIO support for TI OMAP SoCs.
344
345config GPIO_PL061
346 bool "PrimeCell PL061 GPIO support"
347 depends on ARM_AMBA
348 select IRQ_DOMAIN
349 select GPIOLIB_IRQCHIP
350 help
351 Say yes here to support the PrimeCell PL061 GPIO device
352
353config GPIO_PXA
354 bool "PXA GPIO support"
355 depends on ARCH_PXA || ARCH_MMP
356 help
357 Say yes here to support the PXA GPIO device
358
359config GPIO_RCAR
360 tristate "Renesas R-Car GPIO"
361 depends on ARCH_RENESAS || COMPILE_TEST
362 select GPIOLIB_IRQCHIP
363 help
364 Say yes here to support GPIO on Renesas R-Car SoCs.
365
366config GPIO_SPEAR_SPICS
367 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
368 depends on PLAT_SPEAR
369 select GENERIC_IRQ_CHIP
370 help
371 Say yes here to support ST SPEAr SPI Chip Select as GPIO device
372
373config GPIO_STA2X11
374 bool "STA2x11/ConneXt GPIO support"
375 depends on MFD_STA2X11
376 select GENERIC_IRQ_CHIP
377 help
378 Say yes here to support the STA2x11/ConneXt GPIO device.
379 The GPIO module has 128 GPIO pins with alternate functions.
380
381config GPIO_STP_XWAY
382 bool "XWAY STP GPIOs"
383 depends on SOC_XWAY
384 help
385 This enables support for the Serial To Parallel (STP) unit found on
386 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
387 that can be up to 24 bit. This peripheral is aimed at driving leds.
388 Some of the gpios/leds can be auto updated by the soc with dsl and
389 phy status.
390
391config GPIO_SYSCON
392 tristate "GPIO based on SYSCON"
393 depends on MFD_SYSCON && OF
394 help
395 Say yes here to support GPIO functionality though SYSCON driver.
396
397config GPIO_TB10X
398 bool
399 select GENERIC_IRQ_CHIP
400 select OF_GPIO
401
402config GPIO_TS4800
403 tristate "TS-4800 DIO blocks and compatibles"
404 depends on OF_GPIO
405 depends on SOC_IMX51 || COMPILE_TEST
406 select GPIO_GENERIC
407 help
408 This driver support TS-4800 FPGA GPIO controllers.
409
410config GPIO_TZ1090
411 bool "Toumaz Xenif TZ1090 GPIO support"
412 depends on SOC_TZ1090
413 select GENERIC_IRQ_CHIP
414 default y
415 help
416 Say yes here to support Toumaz Xenif TZ1090 GPIOs.
417
418config GPIO_TZ1090_PDC
419 bool "Toumaz Xenif TZ1090 PDC GPIO support"
420 depends on SOC_TZ1090
421 default y
422 help
423 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
424
425config GPIO_VF610
426 def_bool y
427 depends on ARCH_MXC && SOC_VF610
428 select GPIOLIB_IRQCHIP
429 help
430 Say yes here to support Vybrid vf610 GPIOs.
431
432config GPIO_VR41XX
433 tristate "NEC VR4100 series General-purpose I/O Uint support"
434 depends on CPU_VR41XX
435 help
436 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
437
438config GPIO_VX855
439 tristate "VIA VX855/VX875 GPIO"
440 depends on PCI
441 select MFD_CORE
442 select MFD_VX855
443 help
444 Support access to the VX855/VX875 GPIO lines through the gpio library.
445
446 This driver provides common support for accessing the device,
447 additional drivers must be enabled in order to use the
448 functionality of the device.
449
450config GPIO_XGENE
451 bool "APM X-Gene GPIO controller support"
452 depends on ARM64 && OF_GPIO
453 help
454 This driver is to support the GPIO block within the APM X-Gene SoC
455 platform's generic flash controller. The GPIO pins are muxed with
456 the generic flash controller's address and data pins. Say yes
457 here to enable the GFC GPIO functionality.
458
459config GPIO_XGENE_SB
460 tristate "APM X-Gene GPIO standby controller support"
461 depends on ARCH_XGENE && OF_GPIO
462 select GPIO_GENERIC
463 select GPIOLIB_IRQCHIP
464 help
465 This driver supports the GPIO block within the APM X-Gene
466 Standby Domain. Say yes here to enable the GPIO functionality.
467
468config GPIO_XILINX
469 tristate "Xilinx GPIO support"
470 depends on OF_GPIO
471 help
472 Say yes here to support the Xilinx FPGA GPIO device
473
474config GPIO_XLP
475 tristate "Netlogic XLP GPIO support"
476 depends on CPU_XLP && OF_GPIO
477 select GPIOLIB_IRQCHIP
478 help
479 This driver provides support for GPIO interface on Netlogic XLP MIPS64
480 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
481 XLP9XX and XLP5XX.
482
483 If unsure, say N.
484
485config GPIO_XTENSA
486 bool "Xtensa GPIO32 support"
487 depends on XTENSA
488 depends on HAVE_XTENSA_GPIO32
489 depends on !SMP
490 help
491 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
492 and EXPSTATE (output) ports
493
494config GPIO_ZEVIO
495 bool "LSI ZEVIO SoC memory mapped GPIOs"
496 depends on ARM && OF_GPIO
497 help
498 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
499
500config GPIO_ZYNQ
501 tristate "Xilinx Zynq GPIO support"
502 depends on ARCH_ZYNQ || ARCH_ZYNQMP
503 select GPIOLIB_IRQCHIP
504 help
505 Say yes here to support Xilinx Zynq GPIO controller.
506
507config GPIO_ZX
508 bool "ZTE ZX GPIO support"
509 select GPIOLIB_IRQCHIP
510 help
511 Say yes here to support the GPIO device on ZTE ZX SoCs.
512
513endmenu
514
515menu "Port-mapped I/O GPIO drivers"
516 depends on X86 # Unconditional I/O space access
517
518config GPIO_104_DIO_48E
519 tristate "ACCES 104-DIO-48E GPIO support"
520 select GPIOLIB_IRQCHIP
521 help
522 Enables GPIO support for the ACCES 104-DIO-48E family. The base port
523 address for the device may be configured via the dio_48e_base module
524 parameter. The interrupt line number for the device may be configured
525 via the dio_48e_irq module parameter.
526
527config GPIO_104_IDIO_16
528 tristate "ACCES 104-IDIO-16 GPIO support"
529 select GPIOLIB_IRQCHIP
530 help
531 Enables GPIO support for the ACCES 104-IDIO-16 family. The base port
532 address for the device may be set via the idio_16_base module
533 parameter. The interrupt line number for the device may be set via the
534 idio_16_irq module parameter.
535
536config GPIO_104_IDI_48
537 tristate "ACCES 104-IDI-48 GPIO support"
538 select GPIOLIB_IRQCHIP
539 help
540 Enables GPIO support for the ACCES 104-IDI-48 family. The base port
541 address for the device may be configured via the idi_48_base module
542 parameter. The interrupt line number for the device may be configured
543 via the idi_48_irq module parameter.
544
545config GPIO_F7188X
546 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
547 help
548 This option enables support for GPIOs found on Fintek Super-I/O
549 chips F71869, F71869A, F71882FG, F71889F and F81866.
550
551 To compile this driver as a module, choose M here: the module will
552 be called f7188x-gpio.
553
554config GPIO_IT87
555 tristate "IT87xx GPIO support"
556 help
557 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
558
559 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
560 supports the IT8761E Super I/O chip as well.
561
562 To compile this driver as a module, choose M here: the module will
563 be called gpio_it87
564
565config GPIO_SCH
566 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
567 depends on PCI
568 select MFD_CORE
569 select LPC_SCH
570 help
571 Say yes here to support GPIO interface on Intel Poulsbo SCH,
572 Intel Tunnel Creek processor, Intel Centerton processor or
573 Intel Quark X1000 SoC.
574
575 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
576 powered by the core power rail and are turned off during sleep
577 modes (S3 and higher). The remaining four GPIOs are powered by
578 the Intel SCH suspend power supply. These GPIOs remain
579 active during S3. The suspend powered GPIOs can be used to wake the
580 system from the Suspend-to-RAM state.
581
582 The Intel Tunnel Creek processor has 5 GPIOs powered by the
583 core power rail and 9 from suspend power supply.
584
585 The Intel Centerton processor has a total of 30 GPIO pins.
586 Twenty-one are powered by the core power rail and 9 from the
587 suspend power supply.
588
589 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
590 power well and 6 from the suspend power well.
591
592config GPIO_SCH311X
593 tristate "SMSC SCH311x SuperI/O GPIO"
594 help
595 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
596 SCH3116 "Super I/O" chipsets.
597
598 To compile this driver as a module, choose M here: the module will
599 be called gpio-sch311x.
600
601config GPIO_TS5500
602 tristate "TS-5500 DIO blocks and compatibles"
603 depends on TS5500 || COMPILE_TEST
604 help
605 This driver supports Digital I/O exposed by pin blocks found on some
606 Technologic Systems platforms. It includes, but is not limited to, 3
607 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
608 LCD port.
609
610config GPIO_WS16C48
611 tristate "WinSystems WS16C48 GPIO support"
612 select GPIOLIB_IRQCHIP
613 help
614 Enables GPIO support for the WinSystems WS16C48. The base port address
615 for the device may be configured via the ws16c48_base module
616 parameter. The interrupt line number for the device may be configured
617 via the ws16c48_irq module parameter.
618
619endmenu
620
621menu "I2C GPIO expanders"
622 depends on I2C
623
624config GPIO_ADP5588
625 tristate "ADP5588 I2C GPIO expander"
626 help
627 This option enables support for 18 GPIOs found
628 on Analog Devices ADP5588 GPIO Expanders.
629
630config GPIO_ADP5588_IRQ
631 bool "Interrupt controller support for ADP5588"
632 depends on GPIO_ADP5588=y
633 help
634 Say yes here to enable the adp5588 to be used as an interrupt
635 controller. It requires the driver to be built in the kernel.
636
637config GPIO_ADNP
638 tristate "Avionic Design N-bit GPIO expander"
639 depends on OF_GPIO
640 select GPIOLIB_IRQCHIP
641 help
642 This option enables support for N GPIOs found on Avionic Design
643 I2C GPIO expanders. The register space will be extended by powers
644 of two, so the controller will need to accommodate for that. For
645 example: if a controller provides 48 pins, 6 registers will be
646 enough to represent all pins, but the driver will assume a
647 register layout for 64 pins (8 registers).
648
649config GPIO_MAX7300
650 tristate "Maxim MAX7300 GPIO expander"
651 select GPIO_MAX730X
652 help
653 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
654
655config GPIO_MAX732X
656 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
657 help
658 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
659 Port Expanders. Each IO port on these chips has a fixed role of
660 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
661 Input and Output (designed by 'P'). The combinations are listed
662 below:
663
664 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
665 max7322 (4I4O), max7323 (4P4O)
666
667 16 bits: max7324 (8I8O), max7325 (8P8O),
668 max7326 (4I12O), max7327 (4P12O)
669
670 Board setup code must specify the model to use, and the start
671 number for these GPIOs.
672
673config GPIO_MAX732X_IRQ
674 bool "Interrupt controller support for MAX732x"
675 depends on GPIO_MAX732X=y
676 select GPIOLIB_IRQCHIP
677 help
678 Say yes here to enable the max732x to be used as an interrupt
679 controller. It requires the driver to be built in the kernel.
680
681config GPIO_MC9S08DZ60
682 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
683 depends on I2C=y && MACH_MX35_3DS
684 help
685 Select this to enable the MC9S08DZ60 GPIO driver
686
687config GPIO_PCA953X
688 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
689 help
690 Say yes here to provide access to several register-oriented
691 SMBus I/O expanders, made mostly by NXP or TI. Compatible
692 models include:
693
694 4 bits: pca9536, pca9537
695
696 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
697 pca9556, pca9557, pca9574, tca6408, xra1202
698
699 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
700 tca6416
701
702 24 bits: tca6424
703
704 40 bits: pca9505, pca9698
705
706config GPIO_PCA953X_IRQ
707 bool "Interrupt controller support for PCA953x"
708 depends on GPIO_PCA953X=y
709 select GPIOLIB_IRQCHIP
710 help
711 Say yes here to enable the pca953x to be used as an interrupt
712 controller. It requires the driver to be built in the kernel.
713
714config GPIO_PCF857X
715 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
716 select GPIOLIB_IRQCHIP
717 select IRQ_DOMAIN
718 help
719 Say yes here to provide access to most "quasi-bidirectional" I2C
720 GPIO expanders used for additional digital outputs or inputs.
721 Most of these parts are from NXP, though TI is a second source for
722 some of them. Compatible models include:
723
724 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
725 pca9670, pca9672, pca9674, pca9674a,
726 max7328, max7329
727
728 16 bits: pcf8575, pcf8575c, pca8575,
729 pca9671, pca9673, pca9675
730
731 Your board setup code will need to declare the expanders in
732 use, and assign numbers to the GPIOs they expose. Those GPIOs
733 can then be used from drivers and other kernel code, just like
734 other GPIOs, but only accessible from task contexts.
735
736 This driver provides an in-kernel interface to those GPIOs using
737 platform-neutral GPIO calls.
738
739config GPIO_SX150X
740 bool "Semtech SX150x I2C GPIO expander"
741 depends on I2C=y
742 select GPIOLIB_IRQCHIP
743 default n
744 help
745 Say yes here to provide support for Semtech SX150-series I2C
746 GPIO expanders. Compatible models include:
747
748 8 bits: sx1508q
749 16 bits: sx1509q
750
751config GPIO_TPIC2810
752 tristate "TPIC2810 8-Bit I2C GPO expander"
753 help
754 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
755
756 To compile this driver as a module, choose M here: the module will
757 be called gpio-tpic2810.
758
759endmenu
760
761menu "MFD GPIO expanders"
762
763config GPIO_ADP5520
764 tristate "GPIO Support for ADP5520 PMIC"
765 depends on PMIC_ADP5520
766 help
767 This option enables support for on-chip GPIO found
768 on Analog Devices ADP5520 PMICs.
769
770config GPIO_ARIZONA
771 tristate "Wolfson Microelectronics Arizona class devices"
772 depends on MFD_ARIZONA
773 help
774 Support for GPIOs on Wolfson Arizona class devices.
775
776config GPIO_CRYSTAL_COVE
777 tristate "GPIO support for Crystal Cove PMIC"
778 depends on INTEL_SOC_PMIC
779 select GPIOLIB_IRQCHIP
780 help
781 Support for GPIO pins on Crystal Cove PMIC.
782
783 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
784 inside.
785
786 This driver can also be built as a module. If so, the module will be
787 called gpio-crystalcove.
788
789config GPIO_CS5535
790 tristate "AMD CS5535/CS5536 GPIO support"
791 depends on MFD_CS5535
792 help
793 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
794 can be used for quite a number of things. The CS5535/6 is found on
795 AMD Geode and Lemote Yeeloong devices.
796
797 If unsure, say N.
798
799config GPIO_DA9052
800 tristate "Dialog DA9052 GPIO"
801 depends on PMIC_DA9052
802 help
803 Say yes here to enable the GPIO driver for the DA9052 chip.
804
805config GPIO_DA9055
806 tristate "Dialog Semiconductor DA9055 GPIO"
807 depends on MFD_DA9055
808 help
809 Say yes here to enable the GPIO driver for the DA9055 chip.
810
811 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
812 be controller by this driver.
813
814 If driver is built as a module it will be called gpio-da9055.
815
816config GPIO_DLN2
817 tristate "Diolan DLN2 GPIO support"
818 depends on MFD_DLN2
819 select GPIOLIB_IRQCHIP
820
821 help
822 Select this option to enable GPIO driver for the Diolan DLN2
823 board.
824
825 This driver can also be built as a module. If so, the module
826 will be called gpio-dln2.
827
828config GPIO_JANZ_TTL
829 tristate "Janz VMOD-TTL Digital IO Module"
830 depends on MFD_JANZ_CMODIO
831 help
832 This enables support for the Janz VMOD-TTL Digital IO module.
833 This driver provides support for driving the pins in output
834 mode only. Input mode is not supported.
835
836config GPIO_KEMPLD
837 tristate "Kontron ETX / COMexpress GPIO"
838 depends on MFD_KEMPLD
839 help
840 This enables support for the PLD GPIO interface on some Kontron ETX
841 and COMexpress (ETXexpress) modules.
842
843 This driver can also be built as a module. If so, the module will be
844 called gpio-kempld.
845
846config GPIO_LP3943
847 tristate "TI/National Semiconductor LP3943 GPIO expander"
848 depends on MFD_LP3943
849 help
850 GPIO driver for LP3943 MFD.
851 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
852 Open drain outputs are required for this usage.
853
854config GPIO_MSIC
855 bool "Intel MSIC mixed signal gpio support"
856 depends on MFD_INTEL_MSIC
857 help
858 Enable support for GPIO on intel MSIC controllers found in
859 intel MID devices
860
861config GPIO_PALMAS
862 bool "TI PALMAS series PMICs GPIO"
863 depends on MFD_PALMAS
864 help
865 Select this option to enable GPIO driver for the TI PALMAS
866 series chip family.
867
868config GPIO_RC5T583
869 bool "RICOH RC5T583 GPIO"
870 depends on MFD_RC5T583
871 help
872 Select this option to enable GPIO driver for the Ricoh RC5T583
873 chip family.
874 This driver provides the support for driving/reading the gpio pins
875 of RC5T583 device through standard gpio library.
876
877config GPIO_STMPE
878 bool "STMPE GPIOs"
879 depends on MFD_STMPE
880 depends on OF_GPIO
881 select GPIOLIB_IRQCHIP
882 help
883 This enables support for the GPIOs found on the STMPE I/O
884 Expanders.
885
886config GPIO_TC3589X
887 bool "TC3589X GPIOs"
888 depends on MFD_TC3589X
889 depends on OF_GPIO
890 select GPIOLIB_IRQCHIP
891 help
892 This enables support for the GPIOs found on the TC3589X
893 I/O Expander.
894
895config GPIO_TIMBERDALE
896 bool "Support for timberdale GPIO IP"
897 depends on MFD_TIMBERDALE
898 ---help---
899 Add support for the GPIO IP in the timberdale FPGA.
900
901config GPIO_TPS65086
902 tristate "TI TPS65086 GPO"
903 depends on MFD_TPS65086
904 help
905 This driver supports the GPO on TI TPS65086x PMICs.
906
907config GPIO_TPS65218
908 tristate "TPS65218 GPIO"
909 depends on MFD_TPS65218
910 help
911 Select this option to enable GPIO driver for the TPS65218
912 chip family.
913
914config GPIO_TPS6586X
915 bool "TPS6586X GPIO"
916 depends on MFD_TPS6586X
917 help
918 Select this option to enable GPIO driver for the TPS6586X
919 chip family.
920
921config GPIO_TPS65910
922 bool "TPS65910 GPIO"
923 depends on MFD_TPS65910
924 help
925 Select this option to enable GPIO driver for the TPS65910
926 chip family.
927
928config GPIO_TPS65912
929 tristate "TI TPS65912 GPIO"
930 depends on MFD_TPS65912
931 help
932 This driver supports TPS65912 gpio chip
933
934config GPIO_TWL4030
935 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
936 depends on TWL4030_CORE
937 help
938 Say yes here to access the GPIO signals of various multi-function
939 power management chips from Texas Instruments.
940
941config GPIO_TWL6040
942 tristate "TWL6040 GPO"
943 depends on TWL6040_CORE
944 help
945 Say yes here to access the GPO signals of twl6040
946 audio chip from Texas Instruments.
947
948config GPIO_UCB1400
949 tristate "Philips UCB1400 GPIO"
950 depends on UCB1400_CORE
951 help
952 This enables support for the Philips UCB1400 GPIO pins.
953 The UCB1400 is an AC97 audio codec.
954
955config GPIO_WM831X
956 tristate "WM831x GPIOs"
957 depends on MFD_WM831X
958 help
959 Say yes here to access the GPIO signals of WM831x power management
960 chips from Wolfson Microelectronics.
961
962config GPIO_WM8350
963 tristate "WM8350 GPIOs"
964 depends on MFD_WM8350
965 help
966 Say yes here to access the GPIO signals of WM8350 power management
967 chips from Wolfson Microelectronics.
968
969config GPIO_WM8994
970 tristate "WM8994 GPIOs"
971 depends on MFD_WM8994
972 help
973 Say yes here to access the GPIO signals of WM8994 audio hub
974 CODECs from Wolfson Microelectronics.
975
976endmenu
977
978menu "PCI GPIO expanders"
979 depends on PCI
980
981config GPIO_AMD8111
982 tristate "AMD 8111 GPIO driver"
983 help
984 The AMD 8111 south bridge contains 32 GPIO pins which can be used.
985
986 Note, that usually system firmware/ACPI handles GPIO pins on their
987 own and users might easily break their systems with uncarefull usage
988 of this driver!
989
990 If unsure, say N
991
992config GPIO_BT8XX
993 tristate "BT8XX GPIO abuser"
994 depends on VIDEO_BT848=n
995 help
996 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
997 as a cheap PCI GPIO card.
998
999 This chip can be found on Miro, Hauppauge and STB TV-cards.
1000
1001 The card needs to be physically altered for using it as a
1002 GPIO card. For more information on how to build a GPIO card
1003 from a BT8xx TV card, see the documentation file at
1004 Documentation/bt8xxgpio.txt
1005
1006 If unsure, say N.
1007
1008config GPIO_INTEL_MID
1009 bool "Intel Mid GPIO support"
1010 depends on X86
1011 select GPIOLIB_IRQCHIP
1012 help
1013 Say Y here to support Intel Mid GPIO.
1014
1015config GPIO_ML_IOH
1016 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1017 select GENERIC_IRQ_CHIP
1018 help
1019 ML7213 is companion chip for Intel Atom E6xx series.
1020 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1021 Hub) which is for IVI(In-Vehicle Infotainment) use.
1022 This driver can access the IOH's GPIO device.
1023
1024config GPIO_PCH
1025 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1026 depends on X86_32 || MIPS || COMPILE_TEST
1027 select GENERIC_IRQ_CHIP
1028 help
1029 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1030 which is an IOH(Input/Output Hub) for x86 embedded processor.
1031 This driver can access PCH GPIO device.
1032
1033 This driver also can be used for LAPIS Semiconductor IOH(Input/
1034 Output Hub), ML7223 and ML7831.
1035 ML7223 IOH is for MP(Media Phone) use.
1036 ML7831 IOH is for general purpose use.
1037 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1038 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1039
1040config GPIO_RDC321X
1041 tristate "RDC R-321x GPIO support"
1042 select MFD_CORE
1043 select MFD_RDC321X
1044 help
1045 Support for the RDC R321x SoC GPIOs over southbridge
1046 PCI configuration space.
1047
1048config GPIO_SODAVILLE
1049 bool "Intel Sodaville GPIO support"
1050 depends on X86 && OF
1051 select GPIO_GENERIC
1052 select GENERIC_IRQ_CHIP
1053 help
1054 Say Y here to support Intel Sodaville GPIO.
1055
1056endmenu
1057
1058menu "SPI GPIO expanders"
1059 depends on SPI_MASTER
1060
1061config GPIO_74X164
1062 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1063 depends on OF
1064 help
1065 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1066 shift registers. This driver can be used to provide access
1067 to more gpio outputs.
1068
1069config GPIO_MAX7301
1070 tristate "Maxim MAX7301 GPIO expander"
1071 select GPIO_MAX730X
1072 help
1073 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1074
1075config GPIO_MC33880
1076 tristate "Freescale MC33880 high-side/low-side switch"
1077 help
1078 SPI driver for Freescale MC33880 high-side/low-side switch.
1079 This provides GPIO interface supporting inputs and outputs.
1080
1081config GPIO_PISOSR
1082 tristate "Generic parallel-in/serial-out shift register"
1083 help
1084 GPIO driver for SPI compatible parallel-in/serial-out shift
1085 registers. These are input only devices.
1086
1087endmenu
1088
1089menu "SPI or I2C GPIO expanders"
1090 depends on (SPI_MASTER && !I2C) || I2C
1091
1092config GPIO_MCP23S08
1093 tristate "Microchip MCP23xxx I/O expander"
1094 help
1095 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
1096 I/O expanders.
1097 This provides a GPIO interface supporting inputs and outputs.
1098 The I2C versions of the chips can be used as interrupt-controller.
1099
1100endmenu
1101
1102menu "USB GPIO expanders"
1103 depends on USB
1104
1105config GPIO_VIPERBOARD
1106 tristate "Viperboard GPIO a & b support"
1107 depends on MFD_VIPERBOARD
1108 help
1109 Say yes here to access the GPIO signals of Nano River
1110 Technologies Viperboard. There are two GPIO chips on the
1111 board: gpioa and gpiob.
1112 See viperboard API specification and Nano
1113 River Tech's viperboard.h for detailed meaning
1114 of the module parameters.
1115
1116endmenu
1117
1118endif
1# SPDX-License-Identifier: GPL-2.0-only
2#
3# GPIO infrastructure and drivers
4#
5
6menuconfig GPIOLIB
7 bool "GPIO Support"
8 help
9 This enables GPIO support through the generic GPIO library.
10 You only need to enable this if you also want to enable
11 one or more of the GPIO drivers below.
12
13 If unsure, say N.
14
15if GPIOLIB
16
17config GPIOLIB_FASTPATH_LIMIT
18 int "Maximum number of GPIOs for fast path"
19 range 32 512
20 default 512
21 help
22 This adjusts the point at which certain APIs will switch from
23 using a stack allocated buffer to a dynamically allocated buffer.
24
25 You shouldn't need to change this unless you really need to
26 optimize either stack space or performance. Change this carefully
27 since setting an incorrect value could cause stack corruption.
28
29config OF_GPIO
30 def_bool y
31 depends on OF
32 depends on HAS_IOMEM
33
34config GPIO_ACPI
35 def_bool y
36 depends on ACPI
37
38config GPIOLIB_IRQCHIP
39 select IRQ_DOMAIN
40 bool
41
42config OF_GPIO_MM_GPIOCHIP
43 bool
44 help
45 This adds support for the legacy 'struct of_mm_gpio_chip' interface
46 from PowerPC. Existing drivers using this interface need to select
47 this symbol, but new drivers should use the generic gpio-regmap
48 infrastructure instead.
49
50config DEBUG_GPIO
51 bool "Debug GPIO calls"
52 depends on DEBUG_KERNEL
53 help
54 Say Y here to add some extra checks and diagnostics to GPIO calls.
55 These checks help ensure that GPIOs have been properly initialized
56 before they are used, and that sleeping calls are not made from
57 non-sleeping contexts. They can make bitbanged serial protocols
58 slower. The diagnostics help catch the type of setup errors
59 that are most common when setting up new platforms or boards.
60
61config GPIO_SYSFS
62 bool "/sys/class/gpio/... (sysfs interface)" if EXPERT
63 depends on SYSFS
64 select GPIO_CDEV # We need to encourage the new ABI
65 help
66 Say Y here to add the legacy sysfs interface for GPIOs.
67
68 This ABI is deprecated. If you want to use GPIO from userspace,
69 use the character device /dev/gpiochipN with the appropriate
70 ioctl() operations instead.
71
72config GPIO_CDEV
73 bool "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 select REGMAP
103 tristate
104
105config GPIO_SWNODE_UNDEFINED
106 bool
107 help
108 This adds a special place holder for software nodes to contain an
109 undefined GPIO reference, this is primarily used by SPI to allow a
110 list of GPIO chip selects to mark a certain chip select as being
111 controlled the SPI device's internal chip select mechanism and not
112 a GPIO.
113
114# put drivers in the right section, in alphabetical order
115
116# This symbol is selected by both I2C and SPI expanders
117config GPIO_MAX730X
118 tristate
119
120config GPIO_IDIO_16
121 tristate
122 select REGMAP_IRQ
123 select GPIOLIB_IRQCHIP
124 select GPIO_REGMAP
125 help
126 Enables support for the idio-16 library functions. The idio-16 library
127 provides functions to facilitate communication with devices within the
128 ACCES IDIO-16 family such as the 104-IDIO-16 and the PCI-IDIO-16.
129
130 If built as a module its name will be gpio-idio-16.
131
132menu "Memory mapped GPIO drivers"
133 depends on HAS_IOMEM
134
135config GPIO_74XX_MMIO
136 tristate "GPIO driver for 74xx-ICs with MMIO access"
137 depends on OF_GPIO
138 select GPIO_GENERIC
139 help
140 Say yes here to support GPIO functionality for 74xx-compatible ICs
141 with MMIO access. Compatible models include:
142 1 bit: 741G125 (Input), 741G74 (Output)
143 2 bits: 742G125 (Input), 7474 (Output)
144 4 bits: 74125 (Input), 74175 (Output)
145 6 bits: 74365 (Input), 74174 (Output)
146 8 bits: 74244 (Input), 74273 (Output)
147 16 bits: 741624 (Input), 7416374 (Output)
148
149config GPIO_ALTERA
150 tristate "Altera GPIO"
151 select GPIOLIB_IRQCHIP
152 help
153 Say Y or M here to build support for the Altera PIO device.
154
155 If driver is built as a module it will be called gpio-altera.
156
157config GPIO_AMDPT
158 tristate "AMD Promontory GPIO support"
159 depends on ACPI
160 select GPIO_GENERIC
161 help
162 Driver for GPIO functionality on Promontory IOHub.
163 Requires ACPI ASL code to enumerate as a platform device.
164
165config GPIO_ASPEED
166 tristate "Aspeed GPIO support"
167 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
168 select GPIOLIB_IRQCHIP
169 help
170 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
171
172config GPIO_ASPEED_SGPIO
173 bool "Aspeed SGPIO support"
174 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
175 select GPIO_GENERIC
176 select GPIOLIB_IRQCHIP
177 help
178 Say Y here to support Aspeed AST2500 SGPIO functionality.
179
180config GPIO_ATH79
181 tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
182 default y if ATH79
183 depends on ATH79 || COMPILE_TEST
184 select GPIO_GENERIC
185 select GPIOLIB_IRQCHIP
186 help
187 Select this option to enable GPIO driver for
188 Atheros AR71XX/AR724X/AR913X SoC devices.
189
190config GPIO_RASPBERRYPI_EXP
191 tristate "Raspberry Pi 3 GPIO Expander"
192 default RASPBERRYPI_FIRMWARE
193 depends on OF_GPIO
194 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
195 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
196 depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
197 help
198 Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
199 the firmware mailbox to communicate with VideoCore on BCM283x chips.
200
201config GPIO_BCM_KONA
202 bool "Broadcom Kona GPIO"
203 depends on ARCH_BCM_MOBILE || COMPILE_TEST
204 help
205 Turn on GPIO support for Broadcom "Kona" chips.
206
207config GPIO_BCM_XGS_IPROC
208 tristate "BRCM XGS iProc GPIO support"
209 depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST)
210 select GPIO_GENERIC
211 select GPIOLIB_IRQCHIP
212 default ARCH_BCM_IPROC
213 help
214 Say yes here to enable GPIO support for Broadcom XGS iProc SoCs.
215
216config GPIO_BRCMSTB
217 tristate "BRCMSTB GPIO support"
218 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
219 depends on OF_GPIO && (ARCH_BRCMSTB || ARCH_BCM2835 || BMIPS_GENERIC || COMPILE_TEST)
220 select GPIO_GENERIC
221 select IRQ_DOMAIN
222 help
223 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
224
225config GPIO_CADENCE
226 tristate "Cadence GPIO support"
227 depends on OF_GPIO
228 select GPIO_GENERIC
229 select GPIOLIB_IRQCHIP
230 help
231 Say yes here to enable support for Cadence GPIO controller.
232
233config GPIO_CLPS711X
234 tristate "CLPS711X GPIO support"
235 depends on ARCH_CLPS711X || COMPILE_TEST
236 select GPIO_GENERIC
237 help
238 Say yes here to support GPIO on CLPS711X SoCs.
239
240config GPIO_DAVINCI
241 tristate "TI Davinci/Keystone GPIO support"
242 default y if ARCH_DAVINCI
243 depends on ((ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3)) || COMPILE_TEST
244 help
245 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
246
247config GPIO_DWAPB
248 tristate "Synopsys DesignWare APB GPIO driver"
249 select GPIO_GENERIC
250 select GPIOLIB_IRQCHIP
251 help
252 Say Y or M here to build support for the Synopsys DesignWare APB
253 GPIO block.
254
255config GPIO_EIC_SPRD
256 tristate "Spreadtrum EIC support"
257 depends on ARCH_SPRD || COMPILE_TEST
258 depends on OF_GPIO
259 select GPIOLIB_IRQCHIP
260 help
261 Say yes here to support Spreadtrum EIC device.
262
263config GPIO_EM
264 tristate "Emma Mobile GPIO"
265 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
266 help
267 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
268
269config GPIO_EN7523
270 tristate "Airoha GPIO support"
271 depends on ARCH_AIROHA
272 default ARCH_AIROHA
273 select GPIO_GENERIC
274 select GPIOLIB_IRQCHIP
275 help
276 Say Y or M here to support the GPIO controller block on the
277 Airoha EN7523 SoC. It supports two banks of 32 GPIOs.
278
279config GPIO_EP93XX
280 def_bool y
281 depends on ARCH_EP93XX
282 select GPIO_GENERIC
283 select GPIOLIB_IRQCHIP
284
285config GPIO_EXAR
286 tristate "Support for GPIO pins on XR17V352/354/358"
287 depends on SERIAL_8250_EXAR
288 select REGMAP_MMIO
289 help
290 Selecting this option will enable handling of GPIO pins present
291 on Exar XR17V352/354/358 chips.
292
293config GPIO_GE_FPGA
294 bool "GE FPGA based GPIO"
295 depends on GE_FPGA || COMPILE_TEST
296 select GPIO_GENERIC
297 help
298 Support for common GPIO functionality provided on some GE Single Board
299 Computers.
300
301 This driver provides basic support (configure as input or output, read
302 and write pin state) for GPIO implemented in a number of GE single
303 board computers.
304
305config GPIO_FTGPIO010
306 bool "Faraday FTGPIO010 GPIO"
307 depends on OF_GPIO
308 select GPIO_GENERIC
309 select GPIOLIB_IRQCHIP
310 default (ARCH_GEMINI || ARCH_MOXART)
311 help
312 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
313 Cortina systems Gemini platforms, Moxa ART and others.
314
315config GPIO_GENERIC_PLATFORM
316 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
317 select GPIO_GENERIC
318 help
319 Say yes here to support basic platform_device memory-mapped GPIO controllers.
320
321config GPIO_GRANITERAPIDS
322 tristate "Intel Granite Rapids-D vGPIO support"
323 depends on X86 || COMPILE_TEST
324 select GPIOLIB_IRQCHIP
325 help
326 Select this to enable virtual GPIO support on platforms with the
327 following SoCs:
328
329 - Intel Granite Rapids-D
330
331 The driver enables basic GPIO functionality and implements interrupt
332 support. The virtual GPIO driver controls GPIO lines via a firmware
333 interface. The physical GPIO pins reside on device that is external
334 from the main SoC package, such as a BMC or a CPLD.
335
336 To compile this driver as a module, choose M here: the module will
337 be called gpio-graniterapids.
338
339config GPIO_GRGPIO
340 tristate "Aeroflex Gaisler GRGPIO support"
341 depends on OF || COMPILE_TEST
342 select GPIO_GENERIC
343 select IRQ_DOMAIN
344 help
345 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
346 VHDL IP core library.
347
348config GPIO_HISI
349 tristate "HiSilicon GPIO controller driver"
350 depends on ARM64 || COMPILE_TEST
351 select GPIO_GENERIC
352 select GPIOLIB_IRQCHIP
353 help
354 Say Y or M here to build support for the HiSilicon GPIO controller
355 driver GPIO block.
356 This GPIO controller supports double-edge interrupt and multi-core
357 concurrent access.
358
359config GPIO_HLWD
360 tristate "Nintendo Wii (Hollywood) GPIO"
361 depends on OF_GPIO
362 select GPIO_GENERIC
363 select GPIOLIB_IRQCHIP
364 help
365 Select this to support the GPIO controller of the Nintendo Wii.
366
367 If unsure, say N.
368
369config GPIO_ICH
370 tristate "Intel ICH GPIO"
371 depends on X86
372 depends on LPC_ICH
373 help
374 Say yes here to support the GPIO functionality of a number of Intel
375 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
376 ICH9, ICH10, Series 5/3400 (e.g. Ibex Peak), Series 6/C200 (e.g.
377 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
378
379 If unsure, say N.
380
381config GPIO_IMX_SCU
382 def_bool y
383 depends on IMX_SCU
384
385config GPIO_IXP4XX
386 bool "Intel IXP4xx GPIO"
387 depends on ARCH_IXP4XX
388 depends on OF
389 select GPIO_GENERIC
390 select GPIOLIB_IRQCHIP
391 select IRQ_DOMAIN_HIERARCHY
392 help
393 Say yes here to support the GPIO functionality of a number of Intel
394 IXP4xx series of chips.
395
396 If unsure, say N.
397
398config GPIO_LOGICVC
399 tristate "Xylon LogiCVC GPIO support"
400 depends on MFD_SYSCON && OF
401 help
402 Say yes here to support GPIO functionality of the Xylon LogiCVC
403 programmable logic block.
404
405config GPIO_LOONGSON
406 bool "Loongson-2/3 GPIO support"
407 depends on CPU_LOONGSON2EF || CPU_LOONGSON64
408 help
409 Driver for GPIO functionality on Loongson-2F/3A/3B processors.
410
411config GPIO_LOONGSON_64BIT
412 tristate "Loongson 64 bit GPIO support"
413 depends on LOONGARCH || COMPILE_TEST
414 depends on OF_GPIO
415 select GPIO_GENERIC
416 help
417 Say yes here to support the GPIO functionality of a number of
418 Loongson series of chips. The Loongson GPIO controller supports
419 up to 60 GPIOS in total, 4 of which are dedicated GPIO pins, and
420 the remaining 56 are reused with other functions, with edge or
421 level triggered interrupts.
422
423config GPIO_LPC18XX
424 tristate "NXP LPC18XX/43XX GPIO support"
425 default y if ARCH_LPC18XX
426 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
427 select IRQ_DOMAIN_HIERARCHY
428 help
429 Select this option to enable GPIO driver for
430 NXP LPC18XX/43XX devices.
431
432config GPIO_LPC32XX
433 tristate "NXP LPC32XX GPIO support"
434 depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST)
435 help
436 Select this option to enable GPIO driver for
437 NXP LPC32XX devices.
438
439config GPIO_MB86S7X
440 tristate "GPIO support for Fujitsu MB86S7x Platforms"
441 help
442 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
443
444config GPIO_MENZ127
445 tristate "MEN 16Z127 GPIO support"
446 depends on MCB
447 select GPIO_GENERIC
448 help
449 Say yes here to support the MEN 16Z127 GPIO Controller.
450
451config GPIO_MM_LANTIQ
452 bool "Lantiq Memory mapped GPIOs"
453 depends on LANTIQ && SOC_XWAY
454 select OF_GPIO_MM_GPIOCHIP
455 help
456 This enables support for memory mapped GPIOs on the External Bus Unit
457 (EBU) found on Lantiq SoCs. The GPIOs are output only as they are
458 created by attaching a 16-bit latch to the bus.
459
460config GPIO_MPC5200
461 def_bool y
462 depends on PPC_MPC52xx
463 select OF_GPIO_MM_GPIOCHIP
464
465config GPIO_MPC8XXX
466 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
467 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
468 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
469 COMPILE_TEST
470 select GPIO_GENERIC
471 select IRQ_DOMAIN
472 help
473 Say Y here if you're going to use hardware that connects to the
474 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
475
476config GPIO_MT7621
477 bool "Mediatek MT7621 GPIO Support"
478 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
479 depends on OF_GPIO
480 select GPIO_GENERIC
481 select GPIOLIB_IRQCHIP
482 help
483 Say yes here to support the Mediatek MT7621 SoC GPIO device.
484
485config GPIO_MVEBU
486 bool "Marvell Orion and EBU GPIO support" if COMPILE_TEST
487 depends on PLAT_ORION || ARCH_MVEBU || COMPILE_TEST
488 default PLAT_ORION || ARCH_MVEBU
489 select GENERIC_IRQ_CHIP
490 select REGMAP_MMIO
491
492config GPIO_MXC
493 tristate "i.MX GPIO support"
494 depends on ARCH_MXC || COMPILE_TEST
495 select GPIO_GENERIC
496 select GENERIC_IRQ_CHIP
497
498config GPIO_MXS
499 bool "Freescale MXS GPIO support" if COMPILE_TEST
500 depends on ARCH_MXS || COMPILE_TEST
501 default y if ARCH_MXS
502 select GPIO_GENERIC
503 select GENERIC_IRQ_CHIP
504
505config GPIO_NOMADIK
506 bool "Nomadik GPIO driver"
507 depends on ARCH_U8500 || ARCH_NOMADIK || MACH_EYEQ5 || COMPILE_TEST
508 select GPIOLIB_IRQCHIP
509 help
510 Say yes here to support the Nomadik SoC GPIO block. This block is also
511 used by the Mobileye EyeQ5 SoC.
512
513 It handles up to 32 GPIOs per bank, that can all be interrupt sources.
514 It is deeply interconnected with the associated pinctrl driver as GPIO
515 registers handle muxing ("alternate functions") as well.
516
517config GPIO_NPCM_SGPIO
518 bool "Nuvoton SGPIO support"
519 depends on ARCH_NPCM || COMPILE_TEST
520 select GPIOLIB_IRQCHIP
521 help
522 Say Y here to support Nuvoton NPCM7XX/NPCM8XX SGPIO functionality.
523
524config GPIO_OCTEON
525 tristate "Cavium OCTEON GPIO"
526 depends on CAVIUM_OCTEON_SOC
527 default y
528 help
529 Say yes here to support the on-chip GPIO lines on the OCTEON
530 family of SOCs.
531
532config GPIO_OMAP
533 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
534 default y if ARCH_OMAP
535 depends on ARM
536 select GENERIC_IRQ_CHIP
537 select GPIOLIB_IRQCHIP
538 help
539 Say yes here to enable GPIO support for TI OMAP SoCs.
540
541config GPIO_PL061
542 tristate "PrimeCell PL061 GPIO support"
543 depends on ARM_AMBA
544 select IRQ_DOMAIN
545 select GPIOLIB_IRQCHIP
546 help
547 Say yes here to support the PrimeCell PL061 GPIO device.
548
549config GPIO_POLARFIRE_SOC
550 bool "Microchip FPGA GPIO support"
551 select REGMAP_MMIO
552 help
553 Say yes here to support the GPIO controllers on Microchip FPGAs.
554
555config GPIO_PXA
556 bool "PXA GPIO support"
557 depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST
558 help
559 Say yes here to support the PXA GPIO device.
560
561config GPIO_RCAR
562 tristate "Renesas R-Car and RZ/G GPIO support"
563 depends on ARCH_RENESAS || COMPILE_TEST
564 select GPIOLIB_IRQCHIP
565 help
566 Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs.
567
568config GPIO_RDA
569 bool "RDA Micro GPIO controller support"
570 depends on ARCH_RDA || COMPILE_TEST
571 depends on OF_GPIO
572 select GPIO_GENERIC
573 select GPIOLIB_IRQCHIP
574 help
575 Say Y here to support RDA Micro GPIO controller.
576
577config GPIO_REALTEK_OTTO
578 tristate "Realtek Otto GPIO support"
579 depends on MACH_REALTEK_RTL
580 default MACH_REALTEK_RTL
581 select GPIO_GENERIC
582 select GPIOLIB_IRQCHIP
583 help
584 The GPIO controller on the Otto MIPS platform supports up to two
585 banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs
586 are grouped in four 8-bit wide ports.
587
588 When built as a module, the module will be called realtek_otto_gpio.
589
590config GPIO_REG
591 bool
592 help
593 A 32-bit single register GPIO fixed in/out implementation. This
594 can be used to represent any register as a set of GPIO signals.
595
596config GPIO_ROCKCHIP
597 tristate "Rockchip GPIO support"
598 depends on ARCH_ROCKCHIP || COMPILE_TEST
599 select GENERIC_IRQ_CHIP
600 select GPIOLIB_IRQCHIP
601 default ARCH_ROCKCHIP
602 help
603 Say yes here to support GPIO on Rockchip SoCs.
604
605config GPIO_RTD
606 tristate "Realtek DHC GPIO support"
607 depends on ARCH_REALTEK
608 default y
609 select GPIOLIB_IRQCHIP
610 help
611 This option enables support for GPIOs found on Realtek DHC(Digital
612 Home Center) SoCs family, including RTD1295, RTD1315E, RTD1319,
613 RTD1319D, RTD1395, RTD1619 and RTD1619B.
614
615 Say yes here to support GPIO functionality and GPIO interrupt on
616 Realtek DHC SoCs.
617
618config GPIO_SAMA5D2_PIOBU
619 tristate "SAMA5D2 PIOBU GPIO support"
620 depends on MFD_SYSCON
621 depends on OF_GPIO
622 depends on ARCH_AT91 || COMPILE_TEST
623 select GPIO_SYSCON
624 help
625 Say yes here to use the PIOBU pins as GPIOs.
626
627 PIOBU pins on the SAMA5D2 can be used as GPIOs.
628 The difference from regular GPIOs is that they
629 maintain their value during backup/self-refresh.
630
631config GPIO_SIFIVE
632 tristate "SiFive GPIO support"
633 depends on OF_GPIO
634 select IRQ_DOMAIN_HIERARCHY
635 select GPIO_GENERIC
636 select GPIOLIB_IRQCHIP
637 select REGMAP_MMIO
638 help
639 Say yes here to support the GPIO device on SiFive SoCs.
640
641config GPIO_SIOX
642 tristate "SIOX GPIO support"
643 depends on SIOX
644 select GPIOLIB_IRQCHIP
645 help
646 Say yes here to support SIOX I/O devices. These are units connected
647 via a SIOX bus and have a number of fixed-direction I/O lines.
648
649config GPIO_SNPS_CREG
650 bool "Synopsys GPIO via CREG (Control REGisters) driver"
651 depends on ARC || COMPILE_TEST
652 depends on OF_GPIO
653 help
654 This driver supports GPIOs via CREG on various Synopsys SoCs.
655 This is a single-register MMIO GPIO driver for complex cases
656 where only several fields in register belong to GPIO lines and
657 each GPIO line owns a field with different length and on/off value.
658
659config GPIO_SPEAR_SPICS
660 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
661 depends on PLAT_SPEAR
662 select GENERIC_IRQ_CHIP
663 help
664 Say yes here to support ST SPEAr SPI Chip Select as GPIO device.
665
666config GPIO_SPRD
667 tristate "Spreadtrum GPIO support"
668 depends on ARCH_SPRD || COMPILE_TEST
669 depends on OF_GPIO
670 select GPIOLIB_IRQCHIP
671 help
672 Say yes here to support Spreadtrum GPIO device.
673
674config GPIO_STP_XWAY
675 bool "XWAY STP GPIOs"
676 depends on SOC_XWAY || COMPILE_TEST
677 depends on OF_GPIO
678 help
679 This enables support for the Serial To Parallel (STP) unit found on
680 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
681 that can be up to 24 bits. This peripheral is aimed at driving LEDs.
682 Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and
683 phy status.
684
685config GPIO_SYSCON
686 tristate "GPIO based on SYSCON"
687 depends on MFD_SYSCON && OF
688 help
689 Say yes here to support GPIO functionality though SYSCON driver.
690
691config GPIO_TANGIER
692 tristate
693 select GPIOLIB_IRQCHIP
694 help
695 GPIO support for Intel Tangier and compatible platforms.
696 Currently supported:
697 - Elkhart Lake
698 - Merrifield
699
700 If built as a module its name will be gpio-tangier.
701
702config GPIO_TB10X
703 bool
704 select GPIO_GENERIC
705 select GENERIC_IRQ_CHIP
706 select OF_GPIO
707
708config GPIO_TEGRA
709 tristate "NVIDIA Tegra GPIO support"
710 default ARCH_TEGRA
711 depends on ARCH_TEGRA || COMPILE_TEST
712 depends on OF_GPIO
713 select GPIOLIB_IRQCHIP
714 select IRQ_DOMAIN_HIERARCHY
715 help
716 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
717
718config GPIO_TEGRA186
719 tristate "NVIDIA Tegra186 GPIO support"
720 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || ARCH_TEGRA_234_SOC
721 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || ARCH_TEGRA_234_SOC || COMPILE_TEST
722 depends on OF_GPIO
723 select GPIOLIB_IRQCHIP
724 select IRQ_DOMAIN_HIERARCHY
725 help
726 Say yes here to support GPIO pins on NVIDIA Tegra186, 194 and 234 SoCs.
727
728config GPIO_TS4800
729 tristate "TS-4800 DIO blocks and compatibles"
730 depends on OF_GPIO
731 depends on SOC_IMX51 || COMPILE_TEST
732 select GPIO_GENERIC
733 help
734 This driver support TS-4800 FPGA GPIO controllers.
735
736config GPIO_THUNDERX
737 tristate "Cavium ThunderX/OCTEON-TX GPIO"
738 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
739 depends on PCI_MSI
740 select GPIOLIB_IRQCHIP
741 select IRQ_DOMAIN_HIERARCHY
742 select IRQ_FASTEOI_HIERARCHY_HANDLERS
743 help
744 Say yes here to support the on-chip GPIO lines on the ThunderX
745 and OCTEON-TX families of SoCs.
746
747config GPIO_UNIPHIER
748 tristate "UniPhier GPIO support"
749 depends on ARCH_UNIPHIER || COMPILE_TEST
750 depends on OF_GPIO
751 select IRQ_DOMAIN_HIERARCHY
752 help
753 Say yes here to support UniPhier GPIOs.
754
755config GPIO_VF610
756 bool "VF610 GPIO support"
757 default y if SOC_VF610
758 depends on ARCH_MXC || COMPILE_TEST
759 select GPIOLIB_IRQCHIP
760 help
761 Say yes here to support i.MX or Vybrid vf610 GPIOs.
762
763config GPIO_VISCONTI
764 tristate "Toshiba Visconti GPIO support"
765 depends on ARCH_VISCONTI || COMPILE_TEST
766 depends on OF_GPIO
767 select GPIOLIB_IRQCHIP
768 select GPIO_GENERIC
769 select IRQ_DOMAIN_HIERARCHY
770 help
771 Say yes here to support GPIO on Tohisba Visconti.
772
773config GPIO_WCD934X
774 tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver"
775 depends on MFD_WCD934X && OF_GPIO
776 help
777 This driver is to support GPIO block found on the Qualcomm Technologies
778 Inc WCD9340/WCD9341 Audio Codec.
779
780config GPIO_XGENE
781 bool "APM X-Gene GPIO controller support"
782 depends on ARM64 && OF_GPIO
783 help
784 This driver is to support the GPIO block within the APM X-Gene SoC
785 platform's generic flash controller. The GPIO pins are muxed with
786 the generic flash controller's address and data pins. Say yes
787 here to enable the GFC GPIO functionality.
788
789config GPIO_XGENE_SB
790 tristate "APM X-Gene GPIO standby controller support"
791 depends on (ARCH_XGENE || COMPILE_TEST)
792 select GPIO_GENERIC
793 select GPIOLIB_IRQCHIP
794 select IRQ_DOMAIN_HIERARCHY
795 help
796 This driver supports the GPIO block within the APM X-Gene
797 Standby Domain. Say yes here to enable the GPIO functionality.
798
799config GPIO_XILINX
800 tristate "Xilinx GPIO support"
801 select GPIOLIB_IRQCHIP
802 help
803 Say yes here to support the Xilinx FPGA GPIO device.
804
805config GPIO_XLP
806 tristate "Cavium ThunderX2 GPIO support"
807 depends on ARCH_THUNDER2 || COMPILE_TEST
808 select GPIOLIB_IRQCHIP
809 help
810 This driver provides support for GPIO interface on Cavium's ThunderX2
811 CN99XX SoCs (Originally from Netlogic XLP).
812
813 If unsure, say N.
814
815config GPIO_XTENSA
816 bool "Xtensa GPIO32 support"
817 depends on XTENSA
818 depends on HAVE_XTENSA_GPIO32
819 depends on !SMP
820 help
821 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
822 and EXPSTATE (output) ports.
823
824config GPIO_ZEVIO
825 bool "LSI ZEVIO SoC memory mapped GPIOs"
826 depends on ARM
827 help
828 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
829
830config GPIO_ZYNQ
831 tristate "Xilinx Zynq GPIO support"
832 depends on ARCH_ZYNQ || ARCH_ZYNQMP
833 select GPIOLIB_IRQCHIP
834 help
835 Say yes here to support Xilinx Zynq GPIO controller.
836
837config GPIO_ZYNQMP_MODEPIN
838 tristate "ZynqMP ps-mode pin GPIO configuration driver"
839 depends on ZYNQMP_FIRMWARE
840 default ZYNQMP_FIRMWARE
841 help
842 Say yes here to support the ZynqMP ps-mode pin GPIO configuration
843 driver.
844
845 This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE
846 is 4-bits boot mode pins. It sets and gets the status of
847 the ps-mode pin. Every pin can be configured as input/output.
848
849config GPIO_LOONGSON1
850 tristate "Loongson1 GPIO support"
851 depends on MACH_LOONGSON32
852 select GPIO_GENERIC
853 help
854 Say Y or M here to support GPIO on Loongson1 SoCs.
855
856config GPIO_AMD_FCH
857 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
858 help
859 This option enables driver for GPIO on AMD's Fusion Controller Hub,
860 as found on G-series SOCs (e.g. GX-412TC).
861
862 Note: This driver doesn't register itself automatically, as it
863 needs to be provided with platform-specific configuration.
864 (See e.g. CONFIG_PCENGINES_APU2.)
865
866config GPIO_MSC313
867 bool "MStar MSC313 GPIO support"
868 depends on ARCH_MSTARV7
869 default ARCH_MSTARV7
870 select GPIOLIB_IRQCHIP
871 select IRQ_DOMAIN_HIERARCHY
872 help
873 Say Y here to support the main GPIO block on MStar/SigmaStar
874 ARMv7-based SoCs.
875
876config GPIO_IDT3243X
877 tristate "IDT 79RC3243X GPIO support"
878 depends on MIKROTIK_RB532 || COMPILE_TEST
879 select GPIO_GENERIC
880 select GPIOLIB_IRQCHIP
881 help
882 Select this option to enable GPIO driver for
883 IDT 79RC3243X-based devices like Mikrotik RB532.
884
885 To compile this driver as a module, choose M here: the module will
886 be called gpio-idt3243x.
887
888endmenu
889
890menu "Port-mapped I/O GPIO drivers"
891 depends on X86 && HAS_IOPORT # I/O space access
892
893config GPIO_VX855
894 tristate "VIA VX855/VX875 GPIO"
895 depends on PCI
896 select MFD_CORE
897 select MFD_VX855
898 help
899 Support access to the VX855/VX875 GPIO lines through the GPIO library.
900
901 This driver provides common support for accessing the device.
902 Additional drivers must be enabled in order to use the
903 functionality of the device.
904
905config GPIO_I8255
906 tristate
907 select GPIO_REGMAP
908 help
909 Enables support for the i8255 interface library functions. The i8255
910 interface library provides functions to facilitate communication with
911 interfaces compatible with the venerable Intel 8255 Programmable
912 Peripheral Interface (PPI). The Intel 8255 PPI chip was first released
913 in the early 1970s but compatible interfaces are nowadays typically
914 found embedded in larger VLSI processing chips and FPGA components.
915
916 If built as a module its name will be gpio-i8255.
917
918config GPIO_104_DIO_48E
919 tristate "ACCES 104-DIO-48E GPIO support"
920 depends on PC104
921 select ISA_BUS_API
922 select REGMAP_MMIO
923 select REGMAP_IRQ
924 select GPIOLIB_IRQCHIP
925 select GPIO_I8255
926 select I8254
927 help
928 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
929 104-DIO-24E). The base port addresses for the devices may be
930 configured via the base module parameter. The interrupt line numbers
931 for the devices may be configured via the irq module parameter.
932
933config GPIO_104_IDIO_16
934 tristate "ACCES 104-IDIO-16 GPIO support"
935 depends on PC104
936 select ISA_BUS_API
937 select REGMAP_MMIO
938 select GPIO_IDIO_16
939 help
940 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
941 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
942 base port addresses for the devices may be configured via the base
943 module parameter. The interrupt line numbers for the devices may be
944 configured via the irq module parameter.
945
946config GPIO_104_IDI_48
947 tristate "ACCES 104-IDI-48 GPIO support"
948 depends on PC104
949 select ISA_BUS_API
950 select REGMAP_MMIO
951 select REGMAP_IRQ
952 select GPIOLIB_IRQCHIP
953 select GPIO_REGMAP
954 help
955 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
956 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
957 the devices may be configured via the base module parameter. The
958 interrupt line numbers for the devices may be configured via the irq
959 module parameter.
960
961config GPIO_F7188X
962 tristate "Fintek and Nuvoton Super-I/O GPIO support"
963 help
964 This option enables support for GPIOs found on Fintek Super-I/O
965 chips F71869, F71869A, F71882FG, F71889F and F81866.
966 As well as Nuvoton Super-I/O chip NCT6126D.
967
968 To compile this driver as a module, choose M here: the module will
969 be called f7188x-gpio.
970
971config GPIO_GPIO_MM
972 tristate "Diamond Systems GPIO-MM GPIO support"
973 depends on PC104
974 select ISA_BUS_API
975 select REGMAP_MMIO
976 select GPIO_I8255
977 help
978 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
979
980 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
981 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
982 support for these 48 channels of digital I/O.
983
984 The base port addresses for the devices may be configured via the base
985 array module parameter.
986
987config GPIO_IT87
988 tristate "IT87xx GPIO support"
989 help
990 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
991
992 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
993 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
994 well.
995
996 To compile this driver as a module, choose M here: the module will
997 be called gpio_it87.
998
999config GPIO_SCH
1000 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
1001 depends on (X86 || COMPILE_TEST) && ACPI
1002 depends on LPC_SCH
1003 select GPIOLIB_IRQCHIP
1004 help
1005 Say yes here to support GPIO interface on Intel Poulsbo SCH,
1006 Intel Tunnel Creek processor, Intel Centerton processor or
1007 Intel Quark X1000 SoC.
1008
1009 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
1010 powered by the core power rail and are turned off during sleep
1011 modes (S3 and higher). The remaining four GPIOs are powered by
1012 the Intel SCH suspend power supply. These GPIOs remain
1013 active during S3. The suspend-powered GPIOs can be used to wake the
1014 system from the Suspend-to-RAM state.
1015
1016 The Intel Tunnel Creek processor has 5 GPIOs powered by the
1017 core power rail and 9 from suspend power supply.
1018
1019 The Intel Centerton processor has a total of 30 GPIO pins.
1020 Twenty-one are powered by the core power rail and 9 from the
1021 suspend power supply.
1022
1023 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
1024 power well and 6 from the suspend power well.
1025
1026config GPIO_SCH311X
1027 tristate "SMSC SCH311x SuperI/O GPIO"
1028 help
1029 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
1030 SCH3116 "Super I/O" chipsets.
1031
1032 To compile this driver as a module, choose M here: the module will
1033 be called gpio-sch311x.
1034
1035config GPIO_TS5500
1036 tristate "TS-5500 DIO blocks and compatibles"
1037 depends on TS5500 || COMPILE_TEST
1038 help
1039 This driver supports Digital I/O exposed by pin blocks found on some
1040 Technologic Systems platforms. It includes, but is not limited to, 3
1041 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
1042 LCD port.
1043
1044config GPIO_WINBOND
1045 tristate "Winbond Super I/O GPIO support"
1046 select ISA_BUS_API
1047 help
1048 This option enables support for GPIOs found on Winbond Super I/O
1049 chips.
1050 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
1051 supported.
1052
1053 You will need to provide a module parameter "gpios", or a
1054 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
1055 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
1056
1057 To compile this driver as a module, choose M here: the module will
1058 be called gpio-winbond.
1059
1060config GPIO_WS16C48
1061 tristate "WinSystems WS16C48 GPIO support"
1062 select ISA_BUS_API
1063 select REGMAP_IRQ
1064 select REGMAP_MMIO
1065 select GPIOLIB_IRQCHIP
1066 select GPIO_REGMAP
1067 help
1068 Enables GPIO support for the WinSystems WS16C48. The base port
1069 addresses for the devices may be configured via the base module
1070 parameter. The interrupt line numbers for the devices may be
1071 configured via the irq module parameter.
1072
1073endmenu
1074
1075menu "I2C GPIO expanders"
1076 depends on I2C
1077
1078config GPIO_ADNP
1079 tristate "Avionic Design N-bit GPIO expander"
1080 depends on OF_GPIO
1081 select GPIOLIB_IRQCHIP
1082 help
1083 This option enables support for N GPIOs found on Avionic Design
1084 I2C GPIO expanders. The register space will be extended by powers
1085 of two, so the controller will need to accommodate for that. For
1086 example: if a controller provides 48 pins, 6 registers will be
1087 enough to represent all pins, but the driver will assume a
1088 register layout for 64 pins (8 registers).
1089
1090config GPIO_FXL6408
1091 tristate "FXL6408 I2C GPIO expander"
1092 select GPIO_REGMAP
1093 select REGMAP_I2C
1094 help
1095 GPIO driver for Fairchild Semiconductor FXL6408 GPIO expander.
1096
1097 To compile this driver as a module, choose M here: the module will
1098 be called gpio-fxl6408.
1099
1100config GPIO_DS4520
1101 tristate "DS4520 I2C GPIO expander"
1102 select REGMAP_I2C
1103 select GPIO_REGMAP
1104 help
1105 GPIO driver for ADI DS4520 I2C-based GPIO expander.
1106 Say yes here to enable the GPIO driver for the ADI DS4520 chip.
1107
1108 To compile this driver as a module, choose M here: the module will
1109 be called gpio-ds4520.
1110
1111config GPIO_GW_PLD
1112 tristate "Gateworks PLD GPIO Expander"
1113 depends on OF_GPIO
1114 help
1115 Say yes here to provide access to the Gateworks I2C PLD GPIO
1116 Expander. This is used at least on the Cambria GW2358-4.
1117
1118config GPIO_MAX7300
1119 tristate "Maxim MAX7300 GPIO expander"
1120 select GPIO_MAX730X
1121 help
1122 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
1123
1124config GPIO_MAX732X
1125 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
1126 help
1127 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
1128 Port Expanders. Each IO port on these chips has a fixed role of
1129 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
1130 Input and Output (designed by 'P'). The combinations are listed
1131 below:
1132
1133 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
1134 max7322 (4I4O), max7323 (4P4O)
1135
1136 16 bits: max7324 (8I8O), max7325 (8P8O),
1137 max7326 (4I12O), max7327 (4P12O)
1138
1139 Board setup code must specify the model to use, and the start
1140 number for these GPIOs.
1141
1142config GPIO_MAX732X_IRQ
1143 bool "Interrupt controller support for MAX732x"
1144 depends on GPIO_MAX732X=y
1145 select GPIOLIB_IRQCHIP
1146 help
1147 Say yes here to enable the max732x to be used as an interrupt
1148 controller. It requires the driver to be built in the kernel.
1149
1150config GPIO_PCA953X
1151 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
1152 select REGMAP_I2C
1153 help
1154 Say yes here to provide access to several register-oriented
1155 SMBus I/O expanders, made mostly by NXP or TI. Compatible
1156 models include:
1157
1158 4 bits: pca9536, pca9537
1159
1160 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
1161 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
1162
1163 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
1164 tca6416
1165
1166 24 bits: tca6424
1167
1168 40 bits: pca9505, pca9698
1169
1170config GPIO_PCA953X_IRQ
1171 bool "Interrupt controller support for PCA953x"
1172 depends on GPIO_PCA953X
1173 select GPIOLIB_IRQCHIP
1174 help
1175 Say yes here to enable the pca953x to be used as an interrupt
1176 controller.
1177
1178config GPIO_PCA9570
1179 tristate "PCA9570 4-Bit I2C GPO expander"
1180 help
1181 Say yes here to enable the GPO driver for the NXP PCA9570 chip.
1182
1183 To compile this driver as a module, choose M here: the module will
1184 be called gpio-pca9570.
1185
1186config GPIO_PCF857X
1187 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
1188 select GPIOLIB_IRQCHIP
1189 select IRQ_DOMAIN
1190 help
1191 Say yes here to provide access to most "quasi-bidirectional" I2C
1192 GPIO expanders used for additional digital outputs or inputs.
1193 Most of these parts are from NXP, though TI is a second source for
1194 some of them. Compatible models include:
1195
1196 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
1197 pca9670, pca9672, pca9674, pca9674a,
1198 max7328, max7329
1199
1200 16 bits: pcf8575, pcf8575c, pca8575,
1201 pca9671, pca9673, pca9675
1202
1203 Your board setup code will need to declare the expanders in
1204 use, and assign numbers to the GPIOs they expose. Those GPIOs
1205 can then be used from drivers and other kernel code, just like
1206 other GPIOs, but only accessible from task contexts.
1207
1208 This driver provides an in-kernel interface to those GPIOs using
1209 platform-neutral GPIO calls.
1210
1211config GPIO_TPIC2810
1212 tristate "TPIC2810 8-Bit I2C GPO expander"
1213 help
1214 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
1215
1216 To compile this driver as a module, choose M here: the module will
1217 be called gpio-tpic2810.
1218
1219config GPIO_TS4900
1220 tristate "Technologic Systems FPGA I2C GPIO"
1221 depends on SOC_IMX6 || COMPILE_TEST
1222 select REGMAP_I2C
1223 help
1224 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
1225 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
1226
1227endmenu
1228
1229menu "MFD GPIO expanders"
1230
1231config GPIO_ADP5520
1232 tristate "GPIO Support for ADP5520 PMIC"
1233 depends on PMIC_ADP5520
1234 help
1235 This option enables support for on-chip GPIO found
1236 on Analog Devices ADP5520 PMICs.
1237
1238config GPIO_ADP5585
1239 tristate "GPIO Support for ADP5585"
1240 depends on MFD_ADP5585
1241 help
1242 This option enables support for the GPIO function found in the Analog
1243 Devices ADP5585.
1244
1245config GPIO_ALTERA_A10SR
1246 tristate "Altera Arria10 System Resource GPIO"
1247 depends on MFD_ALTERA_A10SR
1248 help
1249 Driver for Arria10 Development Kit GPIO expansion which
1250 includes reads of pushbuttons and DIP switches as well
1251 as writes to LEDs.
1252
1253config GPIO_ARIZONA
1254 tristate "Wolfson Microelectronics Arizona class devices"
1255 depends on MFD_ARIZONA
1256 help
1257 Support for GPIOs on Wolfson Arizona class devices.
1258
1259config GPIO_BD71815
1260 tristate "ROHM BD71815 PMIC GPIO support"
1261 depends on MFD_ROHM_BD71828
1262 help
1263 Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs
1264 available on the ROHM PMIC.
1265
1266 This driver can also be built as a module. If so, the module
1267 will be called gpio-bd71815.
1268
1269config GPIO_BD71828
1270 tristate "ROHM BD71828 GPIO support"
1271 depends on MFD_ROHM_BD71828
1272 help
1273 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs
1274 available on the ROHM PMIC in total. The GPIOs are limited to
1275 outputs only and pins must be configured to GPIO outputs by
1276 OTP. Enable this only if you want to use these pins as outputs.
1277
1278 This driver can also be built as a module. If so, the module
1279 will be called gpio-bd71828.
1280
1281config GPIO_BD9571MWV
1282 tristate "ROHM BD9571 GPIO support"
1283 depends on MFD_BD9571MWV
1284 help
1285 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
1286 available on the ROHM PMIC in total, both of which can also
1287 generate interrupts.
1288
1289 This driver can also be built as a module. If so, the module
1290 will be called gpio-bd9571mwv.
1291
1292config GPIO_CGBC
1293 tristate "Congatec Board Controller GPIO support"
1294 depends on MFD_CGBC
1295 help
1296 Select this option to enable GPIO support for the Congatec Board
1297 Controller.
1298
1299 This driver can also be built as a module. If so, the module will be
1300 called gpio-cgbc.
1301
1302config GPIO_CROS_EC
1303 tristate "ChromeOS EC GPIO support"
1304 depends on CROS_EC
1305 help
1306 GPIO driver for the ChromeOS Embedded Controller (EC). GPIOs
1307 cannot be set unless the system is unlocked.
1308
1309 This driver can also be built as a module. If so, the module
1310 will be called gpio-cros-ec.
1311
1312config GPIO_CRYSTAL_COVE
1313 tristate "GPIO support for Crystal Cove PMIC"
1314 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1315 select GPIOLIB_IRQCHIP
1316 help
1317 Support for GPIO pins on Crystal Cove PMIC.
1318
1319 Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC
1320 inside.
1321
1322 This driver can also be built as a module. If so, the module will be
1323 called gpio-crystalcove.
1324
1325config GPIO_CS5535
1326 tristate "AMD CS5535/CS5536 GPIO support"
1327 depends on X86 || MIPS || COMPILE_TEST
1328 depends on MFD_CS5535
1329 help
1330 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1331 can be used for quite a number of things. The CS5535/6 is found on
1332 AMD Geode and Lemote Yeeloong devices.
1333
1334 If unsure, say N.
1335
1336config GPIO_DA9052
1337 tristate "Dialog DA9052 GPIO"
1338 depends on PMIC_DA9052
1339 help
1340 Say yes here to enable the GPIO driver for the DA9052 chip.
1341
1342config GPIO_DA9055
1343 tristate "Dialog Semiconductor DA9055 GPIO"
1344 depends on MFD_DA9055
1345 help
1346 Say yes here to enable the GPIO driver for the DA9055 chip.
1347
1348 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1349 be controlled by this driver.
1350
1351 If driver is built as a module it will be called gpio-da9055.
1352
1353config GPIO_DLN2
1354 tristate "Diolan DLN2 GPIO support"
1355 depends on MFD_DLN2
1356 select GPIOLIB_IRQCHIP
1357
1358 help
1359 Select this option to enable GPIO driver for the Diolan DLN2
1360 board.
1361
1362 This driver can also be built as a module. If so, the module
1363 will be called gpio-dln2.
1364
1365config HTC_EGPIO
1366 bool "HTC EGPIO support"
1367 depends on ARM
1368 help
1369 This driver supports the CPLD egpio chip present on
1370 several HTC phones. It provides basic support for input
1371 pins, output pins, and IRQs.
1372
1373config GPIO_ELKHARTLAKE
1374 tristate "Intel Elkhart Lake PSE GPIO support"
1375 depends on X86 || COMPILE_TEST
1376 select GPIO_TANGIER
1377 help
1378 Select this option to enable GPIO support for Intel Elkhart Lake
1379 PSE GPIO IP.
1380
1381 To compile this driver as a module, choose M here: the module will
1382 be called gpio-elkhartlake.
1383
1384config GPIO_JANZ_TTL
1385 tristate "Janz VMOD-TTL Digital IO Module"
1386 depends on MFD_JANZ_CMODIO
1387 help
1388 This enables support for the Janz VMOD-TTL Digital IO module.
1389 This driver provides support for driving the pins in output
1390 mode only. Input mode is not supported.
1391
1392config GPIO_KEMPLD
1393 tristate "Kontron ETX / COMexpress GPIO"
1394 depends on MFD_KEMPLD
1395 help
1396 This enables support for the PLD GPIO interface on some Kontron ETX
1397 and COMexpress (ETXexpress) modules.
1398
1399 This driver can also be built as a module. If so, the module will be
1400 called gpio-kempld.
1401
1402config GPIO_LJCA
1403 tristate "INTEL La Jolla Cove Adapter GPIO support"
1404 depends on USB_LJCA
1405 select GPIOLIB_IRQCHIP
1406 default USB_LJCA
1407 help
1408 Select this option to enable GPIO driver for the INTEL
1409 La Jolla Cove Adapter (LJCA) board.
1410
1411 This driver can also be built as a module. If so, the module
1412 will be called gpio-ljca.
1413
1414config GPIO_LP3943
1415 tristate "TI/National Semiconductor LP3943 GPIO expander"
1416 depends on MFD_LP3943
1417 help
1418 GPIO driver for LP3943 MFD.
1419 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1420 Open drain outputs are required for this usage.
1421
1422config GPIO_LP873X
1423 tristate "TI LP873X GPO"
1424 depends on MFD_TI_LP873X
1425 help
1426 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1427 on LP873X PMICs.
1428
1429 This driver can also be built as a module. If so, the module will be
1430 called gpio-lp873x.
1431
1432config GPIO_LP87565
1433 tristate "TI LP87565 GPIO"
1434 depends on MFD_TI_LP87565
1435 help
1436 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1437 on LP87565 PMICs.
1438
1439 This driver can also be built as a module. If so, the module will be
1440 called gpio-lp87565.
1441
1442config GPIO_MADERA
1443 tristate "Cirrus Logic Madera class codecs"
1444 depends on PINCTRL_MADERA
1445 help
1446 Support for GPIOs on Cirrus Logic Madera class codecs.
1447
1448config GPIO_MAX77620
1449 tristate "GPIO support for PMIC MAX77620 and MAX20024"
1450 depends on MFD_MAX77620
1451 select GPIOLIB_IRQCHIP
1452 help
1453 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1454 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1455 driver also provides interrupt support for each of the GPIOs.
1456 Say yes here to enable the max77620 to be used as GPIO controller.
1457
1458config GPIO_MAX77650
1459 tristate "Maxim MAX77650/77651 GPIO support"
1460 depends on MFD_MAX77650
1461 help
1462 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1463 These chips have a single pin that can be configured as GPIO.
1464
1465config GPIO_PALMAS
1466 bool "TI PALMAS series PMICs GPIO"
1467 depends on MFD_PALMAS
1468 help
1469 Select this option to enable GPIO driver for the TI PALMAS
1470 series chip family.
1471
1472config GPIO_PMIC_EIC_SPRD
1473 tristate "Spreadtrum PMIC EIC support"
1474 depends on MFD_SC27XX_PMIC || COMPILE_TEST
1475 depends on OF_GPIO
1476 select GPIOLIB_IRQCHIP
1477 help
1478 Say yes here to support Spreadtrum PMIC EIC device.
1479
1480config GPIO_RC5T583
1481 bool "RICOH RC5T583 GPIO"
1482 depends on MFD_RC5T583
1483 help
1484 Select this option to enable GPIO driver for the Ricoh RC5T583
1485 chip family.
1486 This driver provides the support for driving/reading the GPIO pins
1487 of RC5T583 device through standard GPIO library.
1488
1489config GPIO_SL28CPLD
1490 tristate "Kontron sl28cpld GPIO support"
1491 depends on MFD_SL28CPLD || COMPILE_TEST
1492 select GPIO_REGMAP
1493 select GPIOLIB_IRQCHIP
1494 select REGMAP_IRQ
1495 help
1496 This enables support for the GPIOs found on the Kontron sl28 CPLD.
1497
1498 This driver can also be built as a module. If so, the module will be
1499 called gpio-sl28cpld.
1500
1501config GPIO_STMPE
1502 bool "STMPE GPIOs"
1503 depends on MFD_STMPE
1504 depends on OF_GPIO
1505 select GPIOLIB_IRQCHIP
1506 help
1507 This enables support for the GPIOs found on the STMPE I/O
1508 Expanders.
1509
1510config GPIO_TC3589X
1511 bool "TC3589X GPIOs"
1512 depends on MFD_TC3589X
1513 depends on OF_GPIO
1514 select GPIOLIB_IRQCHIP
1515 help
1516 This enables support for the GPIOs found on the TC3589X
1517 I/O Expander.
1518
1519config GPIO_TIMBERDALE
1520 bool "Support for timberdale GPIO IP"
1521 depends on MFD_TIMBERDALE
1522 help
1523 Add support for the GPIO IP in the timberdale FPGA.
1524
1525config GPIO_TN48M_CPLD
1526 tristate "Delta Networks TN48M switch CPLD GPIO driver"
1527 depends on MFD_TN48M_CPLD
1528 select GPIO_REGMAP
1529 help
1530 This enables support for the GPIOs found on the Delta
1531 Networks TN48M switch Lattice CPLD. It provides 12 pins in total,
1532 they are input-only or output-only type.
1533
1534 This driver can also be built as a module. If so, the
1535 module will be called gpio-tn48m.
1536
1537config GPIO_TPS65086
1538 tristate "TI TPS65086 GPO"
1539 depends on MFD_TPS65086
1540 help
1541 This driver supports the GPO on TI TPS65086x PMICs.
1542
1543config GPIO_TPS65218
1544 tristate "TPS65218 GPIO"
1545 depends on MFD_TPS65218
1546 help
1547 Select this option to enable GPIO driver for the TPS65218
1548 chip family.
1549
1550config GPIO_TPS65219
1551 tristate "TPS65219 GPIO"
1552 depends on MFD_TPS65219
1553 default MFD_TPS65219
1554 help
1555 Select this option to enable GPIO driver for the TPS65219 chip
1556 family.
1557 GPIO0 is statically configured as either input or output prior to
1558 Linux boot. It is used for MULTI_DEVICE_ENABLE function. This setting
1559 is statically configured by NVM. GPIO0 can't be used as a generic
1560 GPIO. It's either a GPO when MULTI_DEVICE_EN=0 or a GPI when
1561 MULTI_DEVICE_EN=1.
1562
1563 This driver can also be built as a module. If so, the module will be
1564 called gpio_tps65219.
1565
1566config GPIO_TPS6586X
1567 bool "TPS6586X GPIO"
1568 depends on MFD_TPS6586X
1569 help
1570 Select this option to enable GPIO driver for the TPS6586X
1571 chip family.
1572
1573config GPIO_TPS65910
1574 bool "TPS65910 GPIO"
1575 depends on MFD_TPS65910
1576 help
1577 Select this option to enable GPIO driver for the TPS65910
1578 chip family.
1579
1580config GPIO_TPS65912
1581 tristate "TI TPS65912 GPIO"
1582 depends on MFD_TPS65912
1583 help
1584 This driver supports TPS65912 GPIO chip.
1585
1586config GPIO_TPS68470
1587 tristate "TPS68470 GPIO"
1588 depends on INTEL_SKL_INT3472
1589 help
1590 Select this option to enable GPIO driver for the TPS68470
1591 chip family.
1592 There are 7 GPIOs and few sensor-related GPIOs supported
1593 by the TPS68470. While the 7 GPIOs can be configured as
1594 input or output as appropriate, the sensor related GPIOs
1595 are "output only" GPIOs.
1596
1597config GPIO_TQMX86
1598 tristate "TQ-Systems TQMx86 GPIO"
1599 depends on MFD_TQMX86 || COMPILE_TEST
1600 depends on HAS_IOPORT_MAP
1601 select GPIOLIB_IRQCHIP
1602 help
1603 This driver supports GPIO on the TQMX86 IO controller.
1604
1605config GPIO_TWL4030
1606 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1607 depends on TWL4030_CORE
1608 help
1609 Say yes here to access the GPIO signals of various multi-function
1610 power management chips from Texas Instruments.
1611
1612config GPIO_TWL6040
1613 tristate "TWL6040 GPO"
1614 depends on TWL6040_CORE
1615 help
1616 Say yes here to access the GPO signals of twl6040
1617 audio chip from Texas Instruments.
1618
1619config GPIO_WHISKEY_COVE
1620 tristate "GPIO support for Whiskey Cove PMIC"
1621 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1622 select GPIOLIB_IRQCHIP
1623 help
1624 Support for GPIO pins on Whiskey Cove PMIC.
1625
1626 Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC
1627 inside.
1628
1629 This driver can also be built as a module. If so, the module will be
1630 called gpio-wcove.
1631
1632config GPIO_WM831X
1633 tristate "WM831x GPIOs"
1634 depends on MFD_WM831X
1635 help
1636 Say yes here to access the GPIO signals of WM831x power management
1637 chips from Wolfson Microelectronics.
1638
1639config GPIO_WM8350
1640 tristate "WM8350 GPIOs"
1641 depends on MFD_WM8350
1642 help
1643 Say yes here to access the GPIO signals of WM8350 power management
1644 chips from Wolfson Microelectronics.
1645
1646config GPIO_WM8994
1647 tristate "WM8994 GPIOs"
1648 depends on MFD_WM8994
1649 help
1650 Say yes here to access the GPIO signals of WM8994 audio hub
1651 CODECs from Wolfson Microelectronics.
1652
1653endmenu
1654
1655menu "PCI GPIO expanders"
1656 depends on PCI
1657
1658config GPIO_AMD8111
1659 tristate "AMD 8111 GPIO driver"
1660 depends on X86 || COMPILE_TEST
1661 depends on HAS_IOPORT_MAP
1662 help
1663 The AMD 8111 southbridge contains 32 GPIO pins which can be used.
1664
1665 Note that usually system firmware/ACPI handles GPIO pins on their
1666 own and users might easily break their systems with uncareful usage
1667 of this driver!
1668
1669 If unsure, say N
1670
1671config GPIO_BT8XX
1672 tristate "BT8XX GPIO abuser"
1673 depends on VIDEO_BT848=n
1674 help
1675 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1676 as a cheap PCI GPIO card.
1677
1678 This chip can be found on Miro, Hauppauge and STB TV-cards.
1679
1680 The card needs to be physically altered for using it as a
1681 GPIO card. For more information on how to build a GPIO card
1682 from a BT8xx TV card, see the documentation file at
1683 Documentation/driver-api/gpio/bt8xxgpio.rst
1684
1685 If unsure, say N.
1686
1687config GPIO_MERRIFIELD
1688 tristate "Intel Merrifield GPIO support"
1689 depends on X86_INTEL_MID
1690 select GPIO_TANGIER
1691 help
1692 Say Y here to support Intel Merrifield GPIO.
1693
1694config GPIO_MLXBF
1695 tristate "Mellanox BlueField SoC GPIO"
1696 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1697 select GPIO_GENERIC
1698 help
1699 Say Y here if you want GPIO support on Mellanox BlueField SoC.
1700
1701config GPIO_MLXBF2
1702 tristate "Mellanox BlueField 2 SoC GPIO"
1703 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1704 select GPIO_GENERIC
1705 select GPIOLIB_IRQCHIP
1706 help
1707 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC.
1708
1709config GPIO_MLXBF3
1710 tristate "Mellanox BlueField 3 SoC GPIO"
1711 depends on (MELLANOX_PLATFORM && ARM64) || COMPILE_TEST
1712 select GPIO_GENERIC
1713 select GPIOLIB_IRQCHIP
1714 help
1715 Say Y if you want GPIO support on Mellanox BlueField 3 SoC.
1716 This GPIO controller supports interrupt handling and enables the
1717 manipulation of certain GPIO pins.
1718 This controller should be used in parallel with pinctrl-mlxbf3 to
1719 control the desired GPIOs.
1720 This driver can also be built as a module called mlxbf3-gpio.
1721
1722config GPIO_ML_IOH
1723 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1724 depends on X86 || COMPILE_TEST
1725 select GENERIC_IRQ_CHIP
1726 help
1727 ML7213 is companion chip for Intel Atom E6xx series.
1728 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output
1729 Hub) which is for IVI (In-Vehicle Infotainment) use.
1730 This driver can access the IOH's GPIO device.
1731
1732config GPIO_PCH
1733 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO"
1734 depends on X86_32 || MIPS || COMPILE_TEST
1735 select GENERIC_IRQ_CHIP
1736 help
1737 This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff,
1738 which is an IOH (Input/Output Hub) for x86 embedded processor.
1739 This driver can access PCH GPIO device.
1740
1741 This driver also can be used for LAPIS Semiconductor IOH (Input/
1742 Output Hub), ML7223 and ML7831.
1743 ML7223 IOH is for MP (Media Phone) use.
1744 ML7831 IOH is for general purpose use.
1745 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1746 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1747
1748config GPIO_PCI_IDIO_16
1749 tristate "ACCES PCI-IDIO-16 GPIO support"
1750 select REGMAP_MMIO
1751 select GPIO_IDIO_16
1752 help
1753 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1754 generated when any of the inputs change state (low to high or high to
1755 low). Input filter control is not supported by this driver, and the
1756 input filters are deactivated by this driver.
1757
1758config GPIO_PCIE_IDIO_24
1759 tristate "ACCES PCIe-IDIO-24 GPIO support"
1760 select REGMAP_IRQ
1761 select REGMAP_MMIO
1762 select GPIOLIB_IRQCHIP
1763 select GPIO_REGMAP
1764 help
1765 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1766 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1767 when any of the inputs change state (low to high or high to low).
1768 Input filter control is not supported by this driver, and the input
1769 filters are deactivated by this driver.
1770
1771config GPIO_RDC321X
1772 tristate "RDC R-321x GPIO support"
1773 select MFD_CORE
1774 select MFD_RDC321X
1775 help
1776 Support for the RDC R321x SoC GPIOs over southbridge
1777 PCI configuration space.
1778
1779config GPIO_SODAVILLE
1780 bool "Intel Sodaville GPIO support"
1781 depends on X86 && OF
1782 select GPIO_GENERIC
1783 select GENERIC_IRQ_CHIP
1784 help
1785 Say Y here to support Intel Sodaville GPIO.
1786
1787endmenu
1788
1789menu "SPI GPIO expanders"
1790 depends on SPI_MASTER
1791
1792config GPIO_74X164
1793 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1794 depends on OF_GPIO
1795 help
1796 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1797 shift registers. This driver can be used to provide access
1798 to more GPIO outputs.
1799
1800config GPIO_MAX3191X
1801 tristate "Maxim MAX3191x industrial serializer"
1802 select CRC8
1803 help
1804 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1805 MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1806 chip to make 8 digital 24V inputs available via SPI. Supports
1807 CRC checksums to guard against electromagnetic interference,
1808 as well as undervoltage and overtemperature detection.
1809
1810config GPIO_MAX7301
1811 tristate "Maxim MAX7301 GPIO expander"
1812 select GPIO_MAX730X
1813 help
1814 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1815
1816config GPIO_MC33880
1817 tristate "Freescale MC33880 high-side/low-side switch"
1818 help
1819 SPI driver for Freescale MC33880 high-side/low-side switch.
1820 This provides GPIO interface supporting inputs and outputs.
1821
1822config GPIO_PISOSR
1823 tristate "Generic parallel-in/serial-out shift register"
1824 help
1825 GPIO driver for SPI compatible parallel-in/serial-out shift
1826 registers. These are input only devices.
1827
1828config GPIO_XRA1403
1829 tristate "EXAR XRA1403 16-bit GPIO expander"
1830 select REGMAP_SPI
1831 help
1832 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1833
1834config GPIO_MOXTET
1835 tristate "Turris Mox Moxtet bus GPIO expander"
1836 depends on MOXTET
1837 help
1838 Say yes here if you are building for the Turris Mox router.
1839 This is the driver needed for configuring the GPIOs via the Moxtet
1840 bus. For example the Mox module with SFP cage needs this driver
1841 so that phylink can use corresponding GPIOs.
1842
1843endmenu
1844
1845menu "USB GPIO expanders"
1846 depends on USB
1847
1848config GPIO_VIPERBOARD
1849 tristate "Viperboard GPIO a & b support"
1850 depends on MFD_VIPERBOARD
1851 help
1852 Say yes here to access the GPIO signals of Nano River
1853 Technologies Viperboard. There are two GPIO chips on the
1854 board: gpioa and gpiob.
1855 See viperboard API specification and Nano
1856 River Tech's viperboard.h for detailed meaning
1857 of the module parameters.
1858
1859config GPIO_MPSSE
1860 tristate "FTDI MPSSE GPIO support"
1861 select GPIOLIB_IRQCHIP
1862 help
1863 GPIO driver for FTDI's MPSSE interface. These can do input and
1864 output. Each MPSSE provides 16 IO pins.
1865
1866endmenu
1867
1868menu "Virtual GPIO drivers"
1869
1870config GPIO_AGGREGATOR
1871 tristate "GPIO Aggregator"
1872 help
1873 Say yes here to enable the GPIO Aggregator, which provides a way to
1874 aggregate existing GPIO lines into a new virtual GPIO chip.
1875 This can serve the following purposes:
1876 - Assign permissions for a collection of GPIO lines to a user,
1877 - Export a collection of GPIO lines to a virtual machine,
1878 - Provide a generic driver for a GPIO-operated device in an
1879 industrial control context, to be operated from userspace using
1880 the GPIO chardev interface.
1881
1882config GPIO_LATCH
1883 tristate "GPIO latch driver"
1884 help
1885 Say yes here to enable a driver for GPIO multiplexers based on latches
1886 connected to other GPIOs.
1887
1888config GPIO_MOCKUP
1889 tristate "GPIO Testing Driver (DEPRECATED)"
1890 select IRQ_SIM
1891 help
1892 This module is DEPRECATED. Please consider using gpio-sim instead.
1893
1894 This enables GPIO Testing driver, which provides a way to test GPIO
1895 subsystem through sysfs (or char device) and debugfs.
1896 User could use it through the script in
1897 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1898 it.
1899
1900config GPIO_VIRTIO
1901 tristate "VirtIO GPIO support"
1902 depends on VIRTIO
1903 select GPIOLIB_IRQCHIP
1904 help
1905 Say Y here to enable guest support for virtio-based GPIO controllers.
1906
1907 These virtual GPIOs can be routed to real GPIOs or attached to
1908 simulators on the host (like QEMU).
1909
1910config GPIO_SIM
1911 tristate "GPIO Simulator Module"
1912 select IRQ_SIM
1913 select CONFIGFS_FS
1914 help
1915 This enables the GPIO simulator - a configfs-based GPIO testing
1916 driver.
1917
1918endmenu
1919
1920menu "GPIO Debugging utilities"
1921
1922config GPIO_SLOPPY_LOGIC_ANALYZER
1923 tristate "Sloppy GPIO logic analyzer"
1924 depends on (GPIOLIB || COMPILE_TEST) && CPUSETS && DEBUG_FS && EXPERT
1925 help
1926 This option enables support for a sloppy logic analyzer using polled
1927 GPIOs. Use the 'tools/gpio/gpio-sloppy-logic-analyzer' script with
1928 this driver. The script will make it easier to use and will also
1929 isolate a CPU for the polling task. Note that this is a last resort
1930 analyzer which can be affected by latencies, non-deterministic code
1931 paths, or NMIs. However, for e.g. remote development, it may be useful
1932 to get a first view and aid further debugging.
1933
1934 If this driver is built as a module it will be called
1935 'gpio-sloppy-logic-analyzer'.
1936
1937config GPIO_VIRTUSER
1938 tristate "GPIO Virtual User Testing Module"
1939 select DEBUG_FS
1940 select CONFIGFS_FS
1941 select IRQ_WORK
1942 help
1943 Say Y here to enable the configurable, configfs-based virtual GPIO
1944 consumer testing driver.
1945
1946 This driver is aimed as a helper in spotting any regressions in
1947 hot-unplug handling in GPIOLIB.
1948
1949endmenu
1950
1951endif