xref: /linux/drivers/gpio/Kconfig (revision 3b0213d56eb7f78c9a0e78dfcd9ec077bb1cf4e9)
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 GPIO_GENERIC
117	select GPIOLIB_IRQCHIP
118	help
119	  Say Y or M here to build support for the Altera PIO device.
120
121	  If driver is built as a module it will be called gpio-altera.
122
123config GPIO_BCM_KONA
124	bool "Broadcom Kona GPIO"
125	depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
126	help
127	  Turn on GPIO support for Broadcom "Kona" chips.
128
129config GPIO_BRCMSTB
130	tristate "BRCMSTB GPIO support"
131	default y if ARCH_BRCMSTB
132	depends on OF_GPIO && (ARCH_BRCMSTB || COMPILE_TEST)
133	select GPIO_GENERIC
134	help
135	  Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
136
137config GPIO_CLPS711X
138	tristate "CLPS711X GPIO support"
139	depends on ARCH_CLPS711X || COMPILE_TEST
140	select GPIO_GENERIC
141	help
142	  Say yes here to support GPIO on CLPS711X SoCs.
143
144config GPIO_DAVINCI
145	bool "TI Davinci/Keystone GPIO support"
146	default y if ARCH_DAVINCI
147	depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
148	help
149	  Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
150
151config GPIO_DWAPB
152	tristate "Synopsys DesignWare APB GPIO driver"
153	select GPIO_GENERIC
154	select GENERIC_IRQ_CHIP
155	help
156	  Say Y or M here to build support for the Synopsys DesignWare APB
157	  GPIO block.
158
159config GPIO_EM
160	tristate "Emma Mobile GPIO"
161	depends on ARM && OF_GPIO
162	help
163	  Say yes here to support GPIO on Renesas Emma Mobile SoCs.
164
165config GPIO_EP93XX
166	def_bool y
167	depends on ARCH_EP93XX
168	select GPIO_GENERIC
169
170config GPIO_F7188X
171	tristate "F71869, F71869A, F71882FG and F71889F GPIO support"
172	depends on X86
173	help
174	  This option enables support for GPIOs found on Fintek Super-I/O
175	  chips F71869, F71869A, F71882FG and F71889F.
176
177	  To compile this driver as a module, choose M here: the module will
178	  be called f7188x-gpio.
179
180config GPIO_GE_FPGA
181	bool "GE FPGA based GPIO"
182	depends on GE_FPGA
183	select GPIO_GENERIC
184	help
185	  Support for common GPIO functionality provided on some GE Single Board
186	  Computers.
187
188	  This driver provides basic support (configure as input or output, read
189	  and write pin state) for GPIO implemented in a number of GE single
190	  board computers.
191
192config GPIO_GENERIC_PLATFORM
193	tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
194	select GPIO_GENERIC
195	help
196	  Say yes here to support basic platform_device memory-mapped GPIO controllers.
197
198config GPIO_GRGPIO
199	tristate "Aeroflex Gaisler GRGPIO support"
200	depends on OF
201	select GPIO_GENERIC
202	select IRQ_DOMAIN
203	help
204	  Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
205	  VHDL IP core library.
206
207config GPIO_ICH
208	tristate "Intel ICH GPIO"
209	depends on PCI && X86
210	select MFD_CORE
211	select LPC_ICH
212	help
213	  Say yes here to support the GPIO functionality of a number of Intel
214	  ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
215	  ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
216	  Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
217
218	  If unsure, say N.
219
220config GPIO_IOP
221	tristate "Intel IOP GPIO"
222	depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
223	help
224	  Say yes here to support the GPIO functionality of a number of Intel
225	  IOP32X or IOP33X.
226
227	  If unsure, say N.
228
229config GPIO_IT8761E
230	tristate "IT8761E GPIO support"
231	depends on X86  # unconditional access to IO space.
232	help
233	  Say yes here to support GPIO functionality of IT8761E super I/O chip.
234
235config GPIO_LOONGSON
236	bool "Loongson-2/3 GPIO support"
237	depends on CPU_LOONGSON2 || CPU_LOONGSON3
238	help
239	  driver for GPIO functionality on Loongson-2F/3A/3B processors.
240
241config GPIO_LPC18XX
242	bool "NXP LPC18XX/43XX GPIO support"
243	default y if ARCH_LPC18XX
244	depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
245	help
246	  Select this option to enable GPIO driver for
247	  NXP LPC18XX/43XX devices.
248
249config GPIO_LYNXPOINT
250	tristate "Intel Lynxpoint GPIO support"
251	depends on ACPI && X86
252	select GPIOLIB_IRQCHIP
253	help
254	  driver for GPIO functionality on Intel Lynxpoint PCH chipset
255	  Requires ACPI device enumeration code to set up a platform device.
256
257config GPIO_MB86S7X
258	bool "GPIO support for Fujitsu MB86S7x Platforms"
259	depends on ARCH_MB86S7X
260	help
261	  Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
262
263config GPIO_MM_LANTIQ
264	bool "Lantiq Memory mapped GPIOs"
265	depends on LANTIQ && SOC_XWAY
266	help
267	  This enables support for memory mapped GPIOs on the External Bus Unit
268	  (EBU) found on Lantiq SoCs. The gpios are output only as they are
269	  created by attaching a 16bit latch to the bus.
270
271config GPIO_MOXART
272	bool "MOXART GPIO support"
273	depends on ARCH_MOXART
274	select GPIO_GENERIC
275	help
276	  Select this option to enable GPIO driver for
277	  MOXA ART SoC devices.
278
279config GPIO_MPC5200
280	def_bool y
281	depends on PPC_MPC52xx
282
283config GPIO_MPC8XXX
284	bool "MPC512x/MPC8xxx GPIO support"
285	depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
286		   FSL_SOC_BOOKE || PPC_86xx
287	help
288	  Say Y here if you're going to use hardware that connects to the
289	  MPC512x/831x/834x/837x/8572/8610 GPIOs.
290
291config GPIO_MSM_V2
292	tristate "Qualcomm MSM GPIO v2"
293	depends on GPIOLIB && OF && ARCH_QCOM
294	help
295	  Say yes here to support the GPIO interface on ARM v7 based
296	  Qualcomm MSM chips.  Most of the pins on the MSM can be
297	  selected for GPIO, and are controlled by this driver.
298
299config GPIO_MVEBU
300	def_bool y
301	depends on PLAT_ORION
302	depends on OF
303	select GPIO_GENERIC
304	select GENERIC_IRQ_CHIP
305
306config GPIO_MXC
307	def_bool y
308	depends on ARCH_MXC
309	select GPIO_GENERIC
310	select GENERIC_IRQ_CHIP
311
312config GPIO_MXS
313	def_bool y
314	depends on ARCH_MXS
315	select GPIO_GENERIC
316	select GENERIC_IRQ_CHIP
317
318config GPIO_OCTEON
319	tristate "Cavium OCTEON GPIO"
320	depends on GPIOLIB && CAVIUM_OCTEON_SOC
321	default y
322	help
323	  Say yes here to support the on-chip GPIO lines on the OCTEON
324	  family of SOCs.
325
326config GPIO_OMAP
327	tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
328	default y if ARCH_OMAP
329	depends on ARM
330	select GENERIC_IRQ_CHIP
331	select GPIOLIB_IRQCHIP
332	help
333	  Say yes here to enable GPIO support for TI OMAP SoCs.
334
335config GPIO_PL061
336	bool "PrimeCell PL061 GPIO support"
337	depends on ARM_AMBA
338	select IRQ_DOMAIN
339	select GPIOLIB_IRQCHIP
340	help
341	  Say yes here to support the PrimeCell PL061 GPIO device
342
343config GPIO_PXA
344	bool "PXA GPIO support"
345	depends on ARCH_PXA || ARCH_MMP
346	help
347	  Say yes here to support the PXA GPIO device
348
349config GPIO_RCAR
350	tristate "Renesas R-Car GPIO"
351	depends on ARM && (ARCH_SHMOBILE || COMPILE_TEST)
352	select GPIOLIB_IRQCHIP
353	help
354	  Say yes here to support GPIO on Renesas R-Car SoCs.
355
356config GPIO_SAMSUNG
357	bool
358	depends on PLAT_SAMSUNG
359	help
360	  Legacy GPIO support. Use only for platforms without support for
361	  pinctrl.
362
363config GPIO_SCH
364	tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
365	depends on PCI && X86
366	select MFD_CORE
367	select LPC_SCH
368	help
369	  Say yes here to support GPIO interface on Intel Poulsbo SCH,
370	  Intel Tunnel Creek processor, Intel Centerton processor or
371	  Intel Quark X1000 SoC.
372
373	  The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
374	  powered by the core power rail and are turned off during sleep
375	  modes (S3 and higher). The remaining four GPIOs are powered by
376	  the Intel SCH suspend power supply. These GPIOs remain
377	  active during S3. The suspend powered GPIOs can be used to wake the
378	  system from the Suspend-to-RAM state.
379
380	  The Intel Tunnel Creek processor has 5 GPIOs powered by the
381	  core power rail and 9 from suspend power supply.
382
383	  The Intel Centerton processor has a total of 30 GPIO pins.
384	  Twenty-one are powered by the core power rail and 9 from the
385	  suspend power supply.
386
387	  The Intel Quark X1000 SoC has 2 GPIOs powered by the core
388	  power well and 6 from the suspend power well.
389
390config GPIO_SCH311X
391	tristate "SMSC SCH311x SuperI/O GPIO"
392	help
393	  Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
394	  SCH3116 "Super I/O" chipsets.
395
396	  To compile this driver as a module, choose M here: the module will
397	  be called gpio-sch311x.
398
399config GPIO_SPEAR_SPICS
400	bool "ST SPEAr13xx SPI Chip Select as GPIO support"
401	depends on PLAT_SPEAR
402	select GENERIC_IRQ_CHIP
403	help
404	  Say yes here to support ST SPEAr SPI Chip Select as GPIO device
405
406config GPIO_STA2X11
407	bool "STA2x11/ConneXt GPIO support"
408	depends on MFD_STA2X11
409	select GENERIC_IRQ_CHIP
410	help
411	  Say yes here to support the STA2x11/ConneXt GPIO device.
412	  The GPIO module has 128 GPIO pins with alternate functions.
413
414config GPIO_STP_XWAY
415	bool "XWAY STP GPIOs"
416	depends on SOC_XWAY
417	help
418	  This enables support for the Serial To Parallel (STP) unit found on
419	  XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
420	  that can be up to 24 bit. This peripheral is aimed at driving leds.
421	  Some of the gpios/leds can be auto updated by the soc with dsl and
422	  phy status.
423
424config GPIO_SYSCON
425	tristate "GPIO based on SYSCON"
426	depends on MFD_SYSCON && OF
427	help
428	  Say yes here to support GPIO functionality though SYSCON driver.
429
430config GPIO_TB10X
431	bool
432	select GENERIC_IRQ_CHIP
433	select OF_GPIO
434
435config GPIO_TS5500
436	tristate "TS-5500 DIO blocks and compatibles"
437	depends on TS5500 || COMPILE_TEST
438	help
439	  This driver supports Digital I/O exposed by pin blocks found on some
440	  Technologic Systems platforms. It includes, but is not limited to, 3
441	  blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
442	  LCD port.
443
444config GPIO_TZ1090
445	bool "Toumaz Xenif TZ1090 GPIO support"
446	depends on SOC_TZ1090
447	select GENERIC_IRQ_CHIP
448	default y
449	help
450	  Say yes here to support Toumaz Xenif TZ1090 GPIOs.
451
452config GPIO_TZ1090_PDC
453	bool "Toumaz Xenif TZ1090 PDC GPIO support"
454	depends on SOC_TZ1090
455	default y
456	help
457	  Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
458
459config GPIO_VF610
460	def_bool y
461	depends on ARCH_MXC && SOC_VF610
462	select GPIOLIB_IRQCHIP
463	help
464	  Say yes here to support Vybrid vf610 GPIOs.
465
466config GPIO_VR41XX
467	tristate "NEC VR4100 series General-purpose I/O Uint support"
468	depends on CPU_VR41XX
469	help
470	  Say yes here to support the NEC VR4100 series General-purpose I/O Uint
471
472config GPIO_VX855
473	tristate "VIA VX855/VX875 GPIO"
474	depends on PCI
475	select MFD_CORE
476	select MFD_VX855
477	help
478	  Support access to the VX855/VX875 GPIO lines through the gpio library.
479
480	  This driver provides common support for accessing the device,
481	  additional drivers must be enabled in order to use the
482	  functionality of the device.
483
484config GPIO_XGENE
485	bool "APM X-Gene GPIO controller support"
486	depends on ARM64 && OF_GPIO
487	help
488	  This driver is to support the GPIO block within the APM X-Gene SoC
489	  platform's generic flash controller. The GPIO pins are muxed with
490	  the generic flash controller's address and data pins. Say yes
491	  here to enable the GFC GPIO functionality.
492
493config GPIO_XGENE_SB
494	tristate "APM X-Gene GPIO standby controller support"
495	depends on ARCH_XGENE && OF_GPIO
496	select GPIO_GENERIC
497	help
498	  This driver supports the GPIO block within the APM X-Gene
499	  Standby Domain. Say yes here to enable the GPIO functionality.
500
501config GPIO_XILINX
502	tristate "Xilinx GPIO support"
503	depends on OF_GPIO && (PPC || MICROBLAZE || ARCH_ZYNQ || X86)
504	help
505	  Say yes here to support the Xilinx FPGA GPIO device
506
507config GPIO_XLP
508	tristate "Netlogic XLP GPIO support"
509	depends on CPU_XLP
510	select GPIOLIB_IRQCHIP
511	help
512	  This driver provides support for GPIO interface on Netlogic XLP MIPS64
513	  SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
514	  XLP9XX and XLP5XX.
515
516	  If unsure, say N.
517
518config GPIO_XTENSA
519	bool "Xtensa GPIO32 support"
520	depends on XTENSA
521	depends on HAVE_XTENSA_GPIO32
522	depends on !SMP
523	help
524	  Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
525	  and EXPSTATE (output) ports
526
527config GPIO_ZEVIO
528	bool "LSI ZEVIO SoC memory mapped GPIOs"
529	depends on ARM && OF_GPIO
530	help
531	  Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
532
533config GPIO_ZYNQ
534	tristate "Xilinx Zynq GPIO support"
535	depends on ARCH_ZYNQ
536	select GPIOLIB_IRQCHIP
537	help
538	  Say yes here to support Xilinx Zynq GPIO controller.
539
540endmenu
541
542menu "I2C GPIO expanders"
543	depends on I2C
544
545config GPIO_ADP5588
546	tristate "ADP5588 I2C GPIO expander"
547	depends on I2C
548	help
549	  This option enables support for 18 GPIOs found
550	  on Analog Devices ADP5588 GPIO Expanders.
551
552config GPIO_ADP5588_IRQ
553	bool "Interrupt controller support for ADP5588"
554	depends on GPIO_ADP5588=y
555	help
556	  Say yes here to enable the adp5588 to be used as an interrupt
557	  controller. It requires the driver to be built in the kernel.
558
559config GPIO_ADNP
560	tristate "Avionic Design N-bit GPIO expander"
561	depends on I2C && OF_GPIO
562	select GPIOLIB_IRQCHIP
563	help
564	  This option enables support for N GPIOs found on Avionic Design
565	  I2C GPIO expanders. The register space will be extended by powers
566	  of two, so the controller will need to accommodate for that. For
567	  example: if a controller provides 48 pins, 6 registers will be
568	  enough to represent all pins, but the driver will assume a
569	  register layout for 64 pins (8 registers).
570
571config GPIO_MAX7300
572	tristate "Maxim MAX7300 GPIO expander"
573	depends on I2C
574	select GPIO_MAX730X
575	help
576	  GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
577
578config GPIO_MAX732X
579	tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
580	depends on I2C
581	help
582	  Say yes here to support the MAX7319, MAX7320-7327 series of I2C
583	  Port Expanders. Each IO port on these chips has a fixed role of
584	  Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
585	  Input and Output (designed by 'P'). The combinations are listed
586	  below:
587
588	  8 bits:	max7319 (8I), max7320 (8O), max7321 (8P),
589		  	max7322 (4I4O), max7323 (4P4O)
590
591	  16 bits:	max7324 (8I8O), max7325 (8P8O),
592		  	max7326 (4I12O), max7327 (4P12O)
593
594	  Board setup code must specify the model to use, and the start
595	  number for these GPIOs.
596
597config GPIO_MAX732X_IRQ
598	bool "Interrupt controller support for MAX732x"
599	depends on GPIO_MAX732X=y
600	select GPIOLIB_IRQCHIP
601	help
602	  Say yes here to enable the max732x to be used as an interrupt
603	  controller. It requires the driver to be built in the kernel.
604
605config GPIO_MC9S08DZ60
606	bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
607	depends on I2C=y && MACH_MX35_3DS
608	help
609	  Select this to enable the MC9S08DZ60 GPIO driver
610
611config GPIO_PCA953X
612	tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
613	depends on I2C
614	help
615	  Say yes here to provide access to several register-oriented
616	  SMBus I/O expanders, made mostly by NXP or TI.  Compatible
617	  models include:
618
619	  4 bits:	pca9536, pca9537
620
621	  8 bits:	max7310, max7315, pca6107, pca9534, pca9538, pca9554,
622			pca9556, pca9557, pca9574, tca6408, xra1202
623
624	  16 bits:	max7312, max7313, pca9535, pca9539, pca9555, pca9575,
625			tca6416
626
627	  24 bits:	tca6424
628
629	  40 bits:	pca9505, pca9698
630
631config GPIO_PCA953X_IRQ
632	bool "Interrupt controller support for PCA953x"
633	depends on GPIO_PCA953X=y
634	select GPIOLIB_IRQCHIP
635	help
636	  Say yes here to enable the pca953x to be used as an interrupt
637	  controller. It requires the driver to be built in the kernel.
638
639config GPIO_PCF857X
640	tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
641	depends on I2C
642	select GPIOLIB_IRQCHIP
643	select IRQ_DOMAIN
644	help
645	  Say yes here to provide access to most "quasi-bidirectional" I2C
646	  GPIO expanders used for additional digital outputs or inputs.
647	  Most of these parts are from NXP, though TI is a second source for
648	  some of them.  Compatible models include:
649
650	  8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
651	            pca9670, pca9672, pca9674, pca9674a,
652	  	    max7328, max7329
653
654	  16 bits:  pcf8575, pcf8575c, pca8575,
655	            pca9671, pca9673, pca9675
656
657	  Your board setup code will need to declare the expanders in
658	  use, and assign numbers to the GPIOs they expose.  Those GPIOs
659	  can then be used from drivers and other kernel code, just like
660	  other GPIOs, but only accessible from task contexts.
661
662	  This driver provides an in-kernel interface to those GPIOs using
663	  platform-neutral GPIO calls.
664
665config GPIO_SX150X
666	bool "Semtech SX150x I2C GPIO expander"
667	depends on I2C=y
668	select GPIOLIB_IRQCHIP
669	default n
670	help
671	  Say yes here to provide support for Semtech SX150-series I2C
672	  GPIO expanders. Compatible models include:
673
674	  8 bits:  sx1508q
675	  16 bits: sx1509q
676
677endmenu
678
679menu "MFD GPIO expanders"
680
681config GPIO_ADP5520
682	tristate "GPIO Support for ADP5520 PMIC"
683	depends on PMIC_ADP5520
684	help
685	  This option enables support for on-chip GPIO found
686	  on Analog Devices ADP5520 PMICs.
687
688config GPIO_ARIZONA
689	tristate "Wolfson Microelectronics Arizona class devices"
690	depends on MFD_ARIZONA
691	help
692	  Support for GPIOs on Wolfson Arizona class devices.
693
694config GPIO_CRYSTAL_COVE
695	tristate "GPIO support for Crystal Cove PMIC"
696	depends on INTEL_SOC_PMIC
697	select GPIOLIB_IRQCHIP
698	help
699	  Support for GPIO pins on Crystal Cove PMIC.
700
701	  Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
702	  inside.
703
704	  This driver can also be built as a module. If so, the module will be
705	  called gpio-crystalcove.
706
707config GPIO_CS5535
708	tristate "AMD CS5535/CS5536 GPIO support"
709	depends on MFD_CS5535
710	help
711	  The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
712	  can be used for quite a number of things.  The CS5535/6 is found on
713	  AMD Geode and Lemote Yeeloong devices.
714
715	  If unsure, say N.
716
717config GPIO_DA9052
718	tristate "Dialog DA9052 GPIO"
719	depends on PMIC_DA9052
720	help
721	  Say yes here to enable the GPIO driver for the DA9052 chip.
722
723config GPIO_DA9055
724	tristate "Dialog Semiconductor DA9055 GPIO"
725	depends on MFD_DA9055
726	help
727	  Say yes here to enable the GPIO driver for the DA9055 chip.
728
729	  The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
730	  be controller by this driver.
731
732	  If driver is built as a module it will be called gpio-da9055.
733
734config GPIO_DLN2
735	tristate "Diolan DLN2 GPIO support"
736	depends on MFD_DLN2
737	select GPIOLIB_IRQCHIP
738
739	help
740	  Select this option to enable GPIO driver for the Diolan DLN2
741	  board.
742
743	  This driver can also be built as a module. If so, the module
744	  will be called gpio-dln2.
745
746config GPIO_JANZ_TTL
747	tristate "Janz VMOD-TTL Digital IO Module"
748	depends on MFD_JANZ_CMODIO
749	help
750	  This enables support for the Janz VMOD-TTL Digital IO module.
751	  This driver provides support for driving the pins in output
752	  mode only. Input mode is not supported.
753
754config GPIO_KEMPLD
755	tristate "Kontron ETX / COMexpress GPIO"
756	depends on MFD_KEMPLD
757	help
758	  This enables support for the PLD GPIO interface on some Kontron ETX
759	  and COMexpress (ETXexpress) modules.
760
761	  This driver can also be built as a module. If so, the module will be
762	  called gpio-kempld.
763
764config GPIO_LP3943
765	tristate "TI/National Semiconductor LP3943 GPIO expander"
766	depends on MFD_LP3943
767	help
768	  GPIO driver for LP3943 MFD.
769	  LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
770	  Open drain outputs are required for this usage.
771
772config GPIO_MSIC
773	bool "Intel MSIC mixed signal gpio support"
774	depends on MFD_INTEL_MSIC
775	help
776	  Enable support for GPIO on intel MSIC controllers found in
777	  intel MID devices
778
779config GPIO_PALMAS
780	bool "TI PALMAS series PMICs GPIO"
781	depends on MFD_PALMAS
782	help
783	  Select this option to enable GPIO driver for the TI PALMAS
784	  series chip family.
785
786config GPIO_RC5T583
787	bool "RICOH RC5T583 GPIO"
788	depends on MFD_RC5T583
789	help
790	  Select this option to enable GPIO driver for the Ricoh RC5T583
791	  chip family.
792	  This driver provides the support for driving/reading the gpio pins
793	  of RC5T583 device through standard gpio library.
794
795config GPIO_STMPE
796	bool "STMPE GPIOs"
797	depends on MFD_STMPE
798	depends on OF_GPIO
799	select GPIOLIB_IRQCHIP
800	help
801	  This enables support for the GPIOs found on the STMPE I/O
802	  Expanders.
803
804config GPIO_TC3589X
805	bool "TC3589X GPIOs"
806	depends on MFD_TC3589X
807	depends on OF_GPIO
808	select GPIOLIB_IRQCHIP
809	help
810	  This enables support for the GPIOs found on the TC3589X
811	  I/O Expander.
812
813config GPIO_TIMBERDALE
814	bool "Support for timberdale GPIO IP"
815	depends on MFD_TIMBERDALE
816	---help---
817	Add support for the GPIO IP in the timberdale FPGA.
818
819config GPIO_TPS6586X
820	bool "TPS6586X GPIO"
821	depends on MFD_TPS6586X
822	help
823	  Select this option to enable GPIO driver for the TPS6586X
824	  chip family.
825
826config GPIO_TPS65910
827	bool "TPS65910 GPIO"
828	depends on MFD_TPS65910
829	help
830	  Select this option to enable GPIO driver for the TPS65910
831	  chip family.
832
833config GPIO_TPS65912
834	tristate "TI TPS65912 GPIO"
835	depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
836	help
837	  This driver supports TPS65912 gpio chip
838
839config GPIO_TWL4030
840	tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
841	depends on TWL4030_CORE
842	help
843	  Say yes here to access the GPIO signals of various multi-function
844	  power management chips from Texas Instruments.
845
846config GPIO_TWL6040
847	tristate "TWL6040 GPO"
848	depends on TWL6040_CORE
849	help
850	  Say yes here to access the GPO signals of twl6040
851	  audio chip from Texas Instruments.
852
853config GPIO_UCB1400
854	tristate "Philips UCB1400 GPIO"
855	depends on UCB1400_CORE
856	help
857	  This enables support for the Philips UCB1400 GPIO pins.
858	  The UCB1400 is an AC97 audio codec.
859
860config GPIO_WM831X
861	tristate "WM831x GPIOs"
862	depends on MFD_WM831X
863	help
864	  Say yes here to access the GPIO signals of WM831x power management
865	  chips from Wolfson Microelectronics.
866
867config GPIO_WM8350
868	tristate "WM8350 GPIOs"
869	depends on MFD_WM8350
870	help
871	  Say yes here to access the GPIO signals of WM8350 power management
872	  chips from Wolfson Microelectronics.
873
874config GPIO_WM8994
875	tristate "WM8994 GPIOs"
876	depends on MFD_WM8994
877	help
878	  Say yes here to access the GPIO signals of WM8994 audio hub
879	  CODECs from Wolfson Microelectronics.
880
881endmenu
882
883menu "PCI GPIO expanders"
884	depends on PCI
885
886config GPIO_AMD8111
887	tristate "AMD 8111 GPIO driver"
888	depends on PCI
889	help
890	  The AMD 8111 south bridge contains 32 GPIO pins which can be used.
891
892	  Note, that usually system firmware/ACPI handles GPIO pins on their
893	  own and users might easily break their systems with uncarefull usage
894	  of this driver!
895
896	  If unsure, say N
897
898config GPIO_BT8XX
899	tristate "BT8XX GPIO abuser"
900	depends on PCI && VIDEO_BT848=n
901	help
902	  The BT8xx frame grabber chip has 24 GPIO pins that can be abused
903	  as a cheap PCI GPIO card.
904
905	  This chip can be found on Miro, Hauppauge and STB TV-cards.
906
907	  The card needs to be physically altered for using it as a
908	  GPIO card. For more information on how to build a GPIO card
909	  from a BT8xx TV card, see the documentation file at
910	  Documentation/bt8xxgpio.txt
911
912	  If unsure, say N.
913
914config GPIO_INTEL_MID
915	bool "Intel Mid GPIO support"
916	depends on PCI && X86
917	select GPIOLIB_IRQCHIP
918	help
919	  Say Y here to support Intel Mid GPIO.
920
921config GPIO_ML_IOH
922	tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
923	depends on PCI
924	select GENERIC_IRQ_CHIP
925	help
926	  ML7213 is companion chip for Intel Atom E6xx series.
927	  This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
928	  Hub) which is for IVI(In-Vehicle Infotainment) use.
929	  This driver can access the IOH's GPIO device.
930
931config GPIO_PCH
932	tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
933	depends on PCI && (X86_32 || COMPILE_TEST)
934	select GENERIC_IRQ_CHIP
935	help
936	  This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
937	  which is an IOH(Input/Output Hub) for x86 embedded processor.
938	  This driver can access PCH GPIO device.
939
940	  This driver also can be used for LAPIS Semiconductor IOH(Input/
941	  Output Hub), ML7223 and ML7831.
942	  ML7223 IOH is for MP(Media Phone) use.
943	  ML7831 IOH is for general purpose use.
944	  ML7223/ML7831 is companion chip for Intel Atom E6xx series.
945	  ML7223/ML7831 is completely compatible for Intel EG20T PCH.
946
947config GPIO_RDC321X
948	tristate "RDC R-321x GPIO support"
949	depends on PCI
950	select MFD_CORE
951	select MFD_RDC321X
952	help
953	  Support for the RDC R321x SoC GPIOs over southbridge
954	  PCI configuration space.
955
956config GPIO_SODAVILLE
957	bool "Intel Sodaville GPIO support"
958	depends on X86 && PCI && OF
959	select GPIO_GENERIC
960	select GENERIC_IRQ_CHIP
961	help
962	  Say Y here to support Intel Sodaville GPIO.
963
964endmenu
965
966menu "SPI GPIO expanders"
967	depends on SPI_MASTER
968
969config GPIO_74X164
970	tristate "74x164 serial-in/parallel-out 8-bits shift register"
971	depends on SPI_MASTER && OF
972	help
973	  Driver for 74x164 compatible serial-in/parallel-out 8-outputs
974	  shift registers. This driver can be used to provide access
975	  to more gpio outputs.
976
977config GPIO_MAX7301
978	tristate "Maxim MAX7301 GPIO expander"
979	depends on SPI_MASTER
980	select GPIO_MAX730X
981	help
982	  GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
983
984config GPIO_MCP23S08
985	tristate "Microchip MCP23xxx I/O expander"
986	depends on (SPI_MASTER && !I2C) || I2C
987	help
988	  SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
989	  I/O expanders.
990	  This provides a GPIO interface supporting inputs and outputs.
991	  The I2C versions of the chips can be used as interrupt-controller.
992
993config GPIO_MC33880
994	tristate "Freescale MC33880 high-side/low-side switch"
995	depends on SPI_MASTER
996	help
997	  SPI driver for Freescale MC33880 high-side/low-side switch.
998	  This provides GPIO interface supporting inputs and outputs.
999
1000endmenu
1001
1002menu "USB GPIO expanders"
1003	depends on USB
1004
1005config GPIO_VIPERBOARD
1006	tristate "Viperboard GPIO a & b support"
1007	depends on MFD_VIPERBOARD && USB
1008	help
1009	  Say yes here to access the GPIO signals of Nano River
1010	  Technologies Viperboard. There are two GPIO chips on the
1011	  board: gpioa and gpiob.
1012          See viperboard API specification and Nano
1013          River Tech's viperboard.h for detailed meaning
1014          of the module parameters.
1015
1016endmenu
1017
1018endif
1019