xref: /openbmc/linux/drivers/gpio/Kconfig (revision 6774def6)
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
93config GPIO_DA9052
94	tristate "Dialog DA9052 GPIO"
95	depends on PMIC_DA9052
96	help
97	  Say yes here to enable the GPIO driver for the DA9052 chip.
98
99config GPIO_DA9055
100	tristate "Dialog Semiconductor DA9055 GPIO"
101	depends on MFD_DA9055
102	help
103	  Say yes here to enable the GPIO driver for the DA9055 chip.
104
105	  The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
106	  be controller by this driver.
107
108	  If driver is built as a module it will be called gpio-da9055.
109
110config GPIO_MAX730X
111	tristate
112
113comment "Memory mapped GPIO drivers:"
114
115config GPIO_CLPS711X
116	tristate "CLPS711X GPIO support"
117	depends on ARCH_CLPS711X || COMPILE_TEST
118	select GPIO_GENERIC
119	help
120	  Say yes here to support GPIO on CLPS711X SoCs.
121
122config GPIO_DAVINCI
123	bool "TI Davinci/Keystone GPIO support"
124	default y if ARCH_DAVINCI
125	depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
126	help
127	  Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
128
129config GPIO_GENERIC_PLATFORM
130	tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
131	select GPIO_GENERIC
132	help
133	  Say yes here to support basic platform_device memory-mapped GPIO controllers.
134
135config GPIO_DWAPB
136	tristate "Synopsys DesignWare APB GPIO driver"
137	select GPIO_GENERIC
138	select GENERIC_IRQ_CHIP
139	help
140	  Say Y or M here to build support for the Synopsys DesignWare APB
141	  GPIO block.
142
143config GPIO_IT8761E
144	tristate "IT8761E GPIO support"
145	depends on X86  # unconditional access to IO space.
146	help
147	  Say yes here to support GPIO functionality of IT8761E super I/O chip.
148
149config GPIO_EM
150	tristate "Emma Mobile GPIO"
151	depends on ARM && OF_GPIO
152	help
153	  Say yes here to support GPIO on Renesas Emma Mobile SoCs.
154
155config GPIO_EP93XX
156	def_bool y
157	depends on ARCH_EP93XX
158	select GPIO_GENERIC
159
160config GPIO_ZEVIO
161	bool "LSI ZEVIO SoC memory mapped GPIOs"
162	depends on ARM && OF_GPIO
163	help
164	  Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
165
166config GPIO_MM_LANTIQ
167	bool "Lantiq Memory mapped GPIOs"
168	depends on LANTIQ && SOC_XWAY
169	help
170	  This enables support for memory mapped GPIOs on the External Bus Unit
171	  (EBU) found on Lantiq SoCs. The gpios are output only as they are
172	  created by attaching a 16bit latch to the bus.
173
174config GPIO_F7188X
175	tristate "F71882FG and F71889F GPIO support"
176	depends on X86
177	help
178	  This option enables support for GPIOs found on Fintek Super-I/O
179	  chips F71882FG and F71889F.
180
181	  To compile this driver as a module, choose M here: the module will
182	  be called f7188x-gpio.
183
184config GPIO_MOXART
185	bool "MOXART GPIO support"
186	depends on ARCH_MOXART
187	help
188	  Select this option to enable GPIO driver for
189	  MOXA ART SoC devices.
190
191config GPIO_MPC5200
192	def_bool y
193	depends on PPC_MPC52xx
194
195config GPIO_MPC8XXX
196	bool "MPC512x/MPC8xxx GPIO support"
197	depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
198		   FSL_SOC_BOOKE || PPC_86xx
199	help
200	  Say Y here if you're going to use hardware that connects to the
201	  MPC512x/831x/834x/837x/8572/8610 GPIOs.
202
203config GPIO_MSM_V1
204	tristate "Qualcomm MSM GPIO v1"
205	depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50)
206	help
207	  Say yes here to support the GPIO interface on ARM v6 based
208	  Qualcomm MSM chips.  Most of the pins on the MSM can be
209	  selected for GPIO, and are controlled by this driver.
210
211config GPIO_MSM_V2
212	tristate "Qualcomm MSM GPIO v2"
213	depends on GPIOLIB && OF && ARCH_QCOM
214	help
215	  Say yes here to support the GPIO interface on ARM v7 based
216	  Qualcomm MSM chips.  Most of the pins on the MSM can be
217	  selected for GPIO, and are controlled by this driver.
218
219config GPIO_MVEBU
220	def_bool y
221	depends on PLAT_ORION
222	depends on OF
223	select GPIO_GENERIC
224	select GENERIC_IRQ_CHIP
225
226config GPIO_MXC
227	def_bool y
228	depends on ARCH_MXC
229	select GPIO_GENERIC
230	select GENERIC_IRQ_CHIP
231
232config GPIO_MXS
233	def_bool y
234	depends on ARCH_MXS
235	select GPIO_GENERIC
236	select GENERIC_IRQ_CHIP
237
238config GPIO_OCTEON
239	tristate "Cavium OCTEON GPIO"
240	depends on GPIOLIB && CAVIUM_OCTEON_SOC
241	default y
242	help
243	  Say yes here to support the on-chip GPIO lines on the OCTEON
244	  family of SOCs.
245
246config GPIO_OMAP
247	bool "TI OMAP GPIO support" if COMPILE_TEST && !ARCH_OMAP2PLUS
248	default y if ARCH_OMAP
249	depends on ARM
250	select GENERIC_IRQ_CHIP
251	select GPIOLIB_IRQCHIP
252	help
253	  Say yes here to enable GPIO support for TI OMAP SoCs.
254
255config GPIO_PL061
256	bool "PrimeCell PL061 GPIO support"
257	depends on ARM_AMBA
258	select IRQ_DOMAIN
259	select GPIOLIB_IRQCHIP
260	help
261	  Say yes here to support the PrimeCell PL061 GPIO device
262
263config GPIO_PXA
264	bool "PXA GPIO support"
265	depends on ARCH_PXA || ARCH_MMP
266	help
267	  Say yes here to support the PXA GPIO device
268
269config GPIO_RCAR
270	tristate "Renesas R-Car GPIO"
271	depends on ARM && (ARCH_SHMOBILE || COMPILE_TEST)
272	help
273	  Say yes here to support GPIO on Renesas R-Car SoCs.
274
275config GPIO_SAMSUNG
276	bool
277	depends on PLAT_SAMSUNG
278	help
279	  Legacy GPIO support. Use only for platforms without support for
280	  pinctrl.
281
282config GPIO_SCH311X
283	tristate "SMSC SCH311x SuperI/O GPIO"
284	help
285	  Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
286	  SCH3116 "Super I/O" chipsets.
287
288	  To compile this driver as a module, choose M here: the module will
289	  be called gpio-sch311x.
290
291config GPIO_SPEAR_SPICS
292	bool "ST SPEAr13xx SPI Chip Select as GPIO support"
293	depends on PLAT_SPEAR
294	select GENERIC_IRQ_CHIP
295	help
296	  Say yes here to support ST SPEAr SPI Chip Select as GPIO device
297
298config GPIO_STA2X11
299	bool "STA2x11/ConneXt GPIO support"
300	depends on MFD_STA2X11
301	select GENERIC_IRQ_CHIP
302	help
303	  Say yes here to support the STA2x11/ConneXt GPIO device.
304	  The GPIO module has 128 GPIO pins with alternate functions.
305
306config GPIO_SYSCON
307	tristate "GPIO based on SYSCON"
308	depends on MFD_SYSCON && OF
309	help
310	  Say yes here to support GPIO functionality though SYSCON driver.
311
312config GPIO_TS5500
313	tristate "TS-5500 DIO blocks and compatibles"
314	depends on TS5500 || COMPILE_TEST
315	help
316	  This driver supports Digital I/O exposed by pin blocks found on some
317	  Technologic Systems platforms. It includes, but is not limited to, 3
318	  blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
319	  LCD port.
320
321config GPIO_TZ1090
322	bool "Toumaz Xenif TZ1090 GPIO support"
323	depends on SOC_TZ1090
324	select GENERIC_IRQ_CHIP
325	default y
326	help
327	  Say yes here to support Toumaz Xenif TZ1090 GPIOs.
328
329config GPIO_TZ1090_PDC
330	bool "Toumaz Xenif TZ1090 PDC GPIO support"
331	depends on SOC_TZ1090
332	default y
333	help
334	  Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
335
336config GPIO_XGENE
337	bool "APM X-Gene GPIO controller support"
338	depends on ARM64 && OF_GPIO
339	help
340	  This driver is to support the GPIO block within the APM X-Gene SoC
341	  platform's generic flash controller. The GPIO pins are muxed with
342	  the generic flash controller's address and data pins. Say yes
343	  here to enable the GFC GPIO functionality.
344
345config GPIO_XILINX
346	bool "Xilinx GPIO support"
347	depends on PPC_OF || MICROBLAZE || ARCH_ZYNQ
348	help
349	  Say yes here to support the Xilinx FPGA GPIO device
350
351config GPIO_ZYNQ
352	tristate "Xilinx Zynq GPIO support"
353	depends on ARCH_ZYNQ
354	select GPIOLIB_IRQCHIP
355	help
356	  Say yes here to support Xilinx Zynq GPIO controller.
357
358config GPIO_XTENSA
359	bool "Xtensa GPIO32 support"
360	depends on XTENSA
361	depends on HAVE_XTENSA_GPIO32
362	depends on !SMP
363	help
364	  Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
365	  and EXPSTATE (output) ports
366
367config GPIO_VR41XX
368	tristate "NEC VR4100 series General-purpose I/O Uint support"
369	depends on CPU_VR41XX
370	help
371	  Say yes here to support the NEC VR4100 series General-purpose I/O Uint
372
373config GPIO_SCH
374	tristate "Intel SCH/TunnelCreek/Centerton GPIO"
375	depends on PCI && X86
376	select MFD_CORE
377	select LPC_SCH
378	help
379	  Say yes here to support GPIO interface on Intel Poulsbo SCH,
380	  Intel Tunnel Creek processor or Intel Centerton processor.
381	  The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
382	  powered by the core power rail and are turned off during sleep
383	  modes (S3 and higher). The remaining four GPIOs are powered by
384	  the Intel SCH suspend power supply. These GPIOs remain
385	  active during S3. The suspend powered GPIOs can be used to wake the
386	  system from the Suspend-to-RAM state.
387	  The Intel Tunnel Creek processor has 5 GPIOs powered by the
388	  core power rail and 9 from suspend power supply.
389	  The Intel Centerton processor has a total of 30 GPIO pins.
390	  Twenty-one are powered by the core power rail and 9 from the
391	  suspend power supply.
392
393config GPIO_ICH
394	tristate "Intel ICH GPIO"
395	depends on PCI && X86
396	select MFD_CORE
397	select LPC_ICH
398	help
399	  Say yes here to support the GPIO functionality of a number of Intel
400	  ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
401	  ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
402	  Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
403
404	  If unsure, say N.
405
406config GPIO_IOP
407	tristate "Intel IOP GPIO"
408	depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
409	help
410	  Say yes here to support the GPIO functionality of a number of Intel
411	  IOP32X or IOP33X.
412
413	  If unsure, say N.
414
415config GPIO_VX855
416	tristate "VIA VX855/VX875 GPIO"
417	depends on PCI
418	select MFD_CORE
419	select MFD_VX855
420	help
421	  Support access to the VX855/VX875 GPIO lines through the gpio library.
422
423	  This driver provides common support for accessing the device,
424	  additional drivers must be enabled in order to use the
425	  functionality of the device.
426
427config GPIO_GE_FPGA
428	bool "GE FPGA based GPIO"
429	depends on GE_FPGA
430	help
431	  Support for common GPIO functionality provided on some GE Single Board
432	  Computers.
433
434	  This driver provides basic support (configure as input or output, read
435	  and write pin state) for GPIO implemented in a number of GE single
436	  board computers.
437
438config GPIO_LYNXPOINT
439	tristate "Intel Lynxpoint GPIO support"
440	depends on ACPI && X86
441	select GPIOLIB_IRQCHIP
442	help
443	  driver for GPIO functionality on Intel Lynxpoint PCH chipset
444	  Requires ACPI device enumeration code to set up a platform device.
445
446config GPIO_GRGPIO
447	tristate "Aeroflex Gaisler GRGPIO support"
448	depends on OF
449	select GPIO_GENERIC
450	select IRQ_DOMAIN
451	help
452	  Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
453	  VHDL IP core library.
454
455config GPIO_TB10X
456	bool
457	select GENERIC_IRQ_CHIP
458	select OF_GPIO
459
460comment "I2C GPIO expanders:"
461
462config GPIO_ARIZONA
463	tristate "Wolfson Microelectronics Arizona class devices"
464	depends on MFD_ARIZONA
465	help
466	  Support for GPIOs on Wolfson Arizona class devices.
467
468config GPIO_CRYSTAL_COVE
469	tristate "GPIO support for Crystal Cove PMIC"
470	depends on INTEL_SOC_PMIC
471	select GPIOLIB_IRQCHIP
472	help
473	  Support for GPIO pins on Crystal Cove PMIC.
474
475	  Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
476	  inside.
477
478	  This driver can also be built as a module. If so, the module will be
479	  called gpio-crystalcove.
480
481config GPIO_LP3943
482	tristate "TI/National Semiconductor LP3943 GPIO expander"
483	depends on MFD_LP3943
484	help
485	  GPIO driver for LP3943 MFD.
486	  LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
487	  Open drain outputs are required for this usage.
488
489config GPIO_MAX7300
490	tristate "Maxim MAX7300 GPIO expander"
491	depends on I2C
492	select GPIO_MAX730X
493	help
494	  GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
495
496config GPIO_MAX732X
497	tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
498	depends on I2C
499	help
500	  Say yes here to support the MAX7319, MAX7320-7327 series of I2C
501	  Port Expanders. Each IO port on these chips has a fixed role of
502	  Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
503	  Input and Output (designed by 'P'). The combinations are listed
504	  below:
505
506	  8 bits:	max7319 (8I), max7320 (8O), max7321 (8P),
507		  	max7322 (4I4O), max7323 (4P4O)
508
509	  16 bits:	max7324 (8I8O), max7325 (8P8O),
510		  	max7326 (4I12O), max7327 (4P12O)
511
512	  Board setup code must specify the model to use, and the start
513	  number for these GPIOs.
514
515config GPIO_MAX732X_IRQ
516	bool "Interrupt controller support for MAX732x"
517	depends on GPIO_MAX732X=y
518	help
519	  Say yes here to enable the max732x to be used as an interrupt
520	  controller. It requires the driver to be built in the kernel.
521
522config GPIO_MC9S08DZ60
523	bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
524	depends on I2C=y && MACH_MX35_3DS
525	help
526	  Select this to enable the MC9S08DZ60 GPIO driver
527
528config GPIO_PCA953X
529	tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
530	depends on I2C
531	help
532	  Say yes here to provide access to several register-oriented
533	  SMBus I/O expanders, made mostly by NXP or TI.  Compatible
534	  models include:
535
536	  4 bits:	pca9536, pca9537
537
538	  8 bits:	max7310, max7315, pca6107, pca9534, pca9538, pca9554,
539			pca9556, pca9557, pca9574, tca6408, xra1202
540
541	  16 bits:	max7312, max7313, pca9535, pca9539, pca9555, pca9575,
542			tca6416
543
544	  24 bits:	tca6424
545
546	  40 bits:	pca9505, pca9698
547
548config GPIO_PCA953X_IRQ
549	bool "Interrupt controller support for PCA953x"
550	depends on GPIO_PCA953X=y
551	select GPIOLIB_IRQCHIP
552	help
553	  Say yes here to enable the pca953x to be used as an interrupt
554	  controller. It requires the driver to be built in the kernel.
555
556config GPIO_PCF857X
557	tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
558	depends on I2C
559	select IRQ_DOMAIN
560	help
561	  Say yes here to provide access to most "quasi-bidirectional" I2C
562	  GPIO expanders used for additional digital outputs or inputs.
563	  Most of these parts are from NXP, though TI is a second source for
564	  some of them.  Compatible models include:
565
566	  8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
567	            pca9670, pca9672, pca9674, pca9674a,
568	  	    max7328, max7329
569
570	  16 bits:  pcf8575, pcf8575c, pca8575,
571	            pca9671, pca9673, pca9675
572
573	  Your board setup code will need to declare the expanders in
574	  use, and assign numbers to the GPIOs they expose.  Those GPIOs
575	  can then be used from drivers and other kernel code, just like
576	  other GPIOs, but only accessible from task contexts.
577
578	  This driver provides an in-kernel interface to those GPIOs using
579	  platform-neutral GPIO calls.
580
581config GPIO_RC5T583
582	bool "RICOH RC5T583 GPIO"
583	depends on MFD_RC5T583
584	help
585	  Select this option to enable GPIO driver for the Ricoh RC5T583
586	  chip family.
587	  This driver provides the support for driving/reading the gpio pins
588	  of RC5T583 device through standard gpio library.
589
590config GPIO_SX150X
591	bool "Semtech SX150x I2C GPIO expander"
592	depends on I2C=y
593	default n
594	help
595	  Say yes here to provide support for Semtech SX150-series I2C
596	  GPIO expanders. Compatible models include:
597
598	  8 bits:  sx1508q
599	  16 bits: sx1509q
600
601config GPIO_STMPE
602	bool "STMPE GPIOs"
603	depends on MFD_STMPE
604	select GPIOLIB_IRQCHIP
605	help
606	  This enables support for the GPIOs found on the STMPE I/O
607	  Expanders.
608
609config GPIO_STP_XWAY
610	bool "XWAY STP GPIOs"
611	depends on SOC_XWAY
612	help
613	  This enables support for the Serial To Parallel (STP) unit found on
614	  XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
615	  that can be up to 24 bit. This peripheral is aimed at driving leds.
616	  Some of the gpios/leds can be auto updated by the soc with dsl and
617	  phy status.
618
619config GPIO_TC3589X
620	bool "TC3589X GPIOs"
621	depends on MFD_TC3589X
622	select GPIOLIB_IRQCHIP
623	help
624	  This enables support for the GPIOs found on the TC3589X
625	  I/O Expander.
626
627config GPIO_TPS65912
628	tristate "TI TPS65912 GPIO"
629	depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
630	help
631	  This driver supports TPS65912 gpio chip
632
633config GPIO_TWL4030
634	tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
635	depends on TWL4030_CORE
636	help
637	  Say yes here to access the GPIO signals of various multi-function
638	  power management chips from Texas Instruments.
639
640config GPIO_TWL6040
641	tristate "TWL6040 GPO"
642	depends on TWL6040_CORE
643	help
644	  Say yes here to access the GPO signals of twl6040
645	  audio chip from Texas Instruments.
646
647config GPIO_WM831X
648	tristate "WM831x GPIOs"
649	depends on MFD_WM831X
650	help
651	  Say yes here to access the GPIO signals of WM831x power management
652	  chips from Wolfson Microelectronics.
653
654config GPIO_WM8350
655	tristate "WM8350 GPIOs"
656	depends on MFD_WM8350
657	help
658	  Say yes here to access the GPIO signals of WM8350 power management
659	  chips from Wolfson Microelectronics.
660
661config GPIO_WM8994
662	tristate "WM8994 GPIOs"
663	depends on MFD_WM8994
664	help
665	  Say yes here to access the GPIO signals of WM8994 audio hub
666	  CODECs from Wolfson Microelectronics.
667
668config GPIO_ADP5520
669	tristate "GPIO Support for ADP5520 PMIC"
670	depends on PMIC_ADP5520
671	help
672	  This option enables support for on-chip GPIO found
673	  on Analog Devices ADP5520 PMICs.
674
675config GPIO_ADP5588
676	tristate "ADP5588 I2C GPIO expander"
677	depends on I2C
678	help
679	  This option enables support for 18 GPIOs found
680	  on Analog Devices ADP5588 GPIO Expanders.
681
682config GPIO_ADP5588_IRQ
683	bool "Interrupt controller support for ADP5588"
684	depends on GPIO_ADP5588=y
685	help
686	  Say yes here to enable the adp5588 to be used as an interrupt
687	  controller. It requires the driver to be built in the kernel.
688
689config GPIO_ADNP
690	tristate "Avionic Design N-bit GPIO expander"
691	depends on I2C && OF_GPIO
692	select GPIOLIB_IRQCHIP
693	help
694	  This option enables support for N GPIOs found on Avionic Design
695	  I2C GPIO expanders. The register space will be extended by powers
696	  of two, so the controller will need to accommodate for that. For
697	  example: if a controller provides 48 pins, 6 registers will be
698	  enough to represent all pins, but the driver will assume a
699	  register layout for 64 pins (8 registers).
700
701comment "PCI GPIO expanders:"
702
703config GPIO_CS5535
704	tristate "AMD CS5535/CS5536 GPIO support"
705	depends on MFD_CS5535
706	help
707	  The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
708	  can be used for quite a number of things.  The CS5535/6 is found on
709	  AMD Geode and Lemote Yeeloong devices.
710
711	  If unsure, say N.
712
713config GPIO_BT8XX
714	tristate "BT8XX GPIO abuser"
715	depends on PCI && VIDEO_BT848=n
716	help
717	  The BT8xx frame grabber chip has 24 GPIO pins that can be abused
718	  as a cheap PCI GPIO card.
719
720	  This chip can be found on Miro, Hauppauge and STB TV-cards.
721
722	  The card needs to be physically altered for using it as a
723	  GPIO card. For more information on how to build a GPIO card
724	  from a BT8xx TV card, see the documentation file at
725	  Documentation/bt8xxgpio.txt
726
727	  If unsure, say N.
728
729config GPIO_AMD8111
730	tristate "AMD 8111 GPIO driver"
731	depends on PCI
732	help
733	  The AMD 8111 south bridge contains 32 GPIO pins which can be used.
734
735	  Note, that usually system firmware/ACPI handles GPIO pins on their
736	  own and users might easily break their systems with uncarefull usage
737	  of this driver!
738
739	  If unsure, say N
740
741config GPIO_INTEL_MID
742	bool "Intel Mid GPIO support"
743	depends on PCI && X86
744	select GPIOLIB_IRQCHIP
745	help
746	  Say Y here to support Intel Mid GPIO.
747
748config GPIO_PCH
749	tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
750	depends on PCI && (X86_32 || COMPILE_TEST)
751	select GENERIC_IRQ_CHIP
752	help
753	  This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
754	  which is an IOH(Input/Output Hub) for x86 embedded processor.
755	  This driver can access PCH GPIO device.
756
757	  This driver also can be used for LAPIS Semiconductor IOH(Input/
758	  Output Hub), ML7223 and ML7831.
759	  ML7223 IOH is for MP(Media Phone) use.
760	  ML7831 IOH is for general purpose use.
761	  ML7223/ML7831 is companion chip for Intel Atom E6xx series.
762	  ML7223/ML7831 is completely compatible for Intel EG20T PCH.
763
764config GPIO_ML_IOH
765	tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
766	depends on PCI
767	select GENERIC_IRQ_CHIP
768	help
769	  ML7213 is companion chip for Intel Atom E6xx series.
770	  This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
771	  Hub) which is for IVI(In-Vehicle Infotainment) use.
772	  This driver can access the IOH's GPIO device.
773
774config GPIO_SODAVILLE
775	bool "Intel Sodaville GPIO support"
776	depends on X86 && PCI && OF
777	select GPIO_GENERIC
778	select GENERIC_IRQ_CHIP
779	help
780	  Say Y here to support Intel Sodaville GPIO.
781
782config GPIO_TIMBERDALE
783	bool "Support for timberdale GPIO IP"
784	depends on MFD_TIMBERDALE
785	---help---
786	Add support for the GPIO IP in the timberdale FPGA.
787
788config GPIO_RDC321X
789	tristate "RDC R-321x GPIO support"
790	depends on PCI
791	select MFD_CORE
792	select MFD_RDC321X
793	help
794	  Support for the RDC R321x SoC GPIOs over southbridge
795	  PCI configuration space.
796
797comment "SPI GPIO expanders:"
798
799config GPIO_MAX7301
800	tristate "Maxim MAX7301 GPIO expander"
801	depends on SPI_MASTER
802	select GPIO_MAX730X
803	help
804	  GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
805
806config GPIO_MCP23S08
807	tristate "Microchip MCP23xxx I/O expander"
808	depends on (SPI_MASTER && !I2C) || I2C
809	help
810	  SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
811	  I/O expanders.
812	  This provides a GPIO interface supporting inputs and outputs.
813	  The I2C versions of the chips can be used as interrupt-controller.
814
815config GPIO_MC33880
816	tristate "Freescale MC33880 high-side/low-side switch"
817	depends on SPI_MASTER
818	help
819	  SPI driver for Freescale MC33880 high-side/low-side switch.
820	  This provides GPIO interface supporting inputs and outputs.
821
822config GPIO_74X164
823	tristate "74x164 serial-in/parallel-out 8-bits shift register"
824	depends on SPI_MASTER && OF
825	help
826	  Driver for 74x164 compatible serial-in/parallel-out 8-outputs
827	  shift registers. This driver can be used to provide access
828	  to more gpio outputs.
829
830comment "AC97 GPIO expanders:"
831
832config GPIO_UCB1400
833	tristate "Philips UCB1400 GPIO"
834	depends on UCB1400_CORE
835	help
836	  This enables support for the Philips UCB1400 GPIO pins.
837	  The UCB1400 is an AC97 audio codec.
838
839comment "LPC GPIO expanders:"
840
841config GPIO_KEMPLD
842	tristate "Kontron ETX / COMexpress GPIO"
843	depends on MFD_KEMPLD
844	help
845	  This enables support for the PLD GPIO interface on some Kontron ETX
846	  and COMexpress (ETXexpress) modules.
847
848	  This driver can also be built as a module. If so, the module will be
849	  called gpio-kempld.
850
851comment "MODULbus GPIO expanders:"
852
853config GPIO_JANZ_TTL
854	tristate "Janz VMOD-TTL Digital IO Module"
855	depends on MFD_JANZ_CMODIO
856	help
857	  This enables support for the Janz VMOD-TTL Digital IO module.
858	  This driver provides support for driving the pins in output
859	  mode only. Input mode is not supported.
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_TPS6586X
869	bool "TPS6586X GPIO"
870	depends on MFD_TPS6586X
871	help
872	  Select this option to enable GPIO driver for the TPS6586X
873	  chip family.
874
875config GPIO_TPS65910
876	bool "TPS65910 GPIO"
877	depends on MFD_TPS65910
878	help
879	  Select this option to enable GPIO driver for the TPS65910
880	  chip family.
881
882config GPIO_MSIC
883	bool "Intel MSIC mixed signal gpio support"
884	depends on MFD_INTEL_MSIC
885	help
886	  Enable support for GPIO on intel MSIC controllers found in
887	  intel MID devices
888
889config GPIO_BCM_KONA
890	bool "Broadcom Kona GPIO"
891	depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
892	help
893	  Turn on GPIO support for Broadcom "Kona" chips.
894
895comment "USB GPIO expanders:"
896
897config GPIO_VIPERBOARD
898	tristate "Viperboard GPIO a & b support"
899	depends on MFD_VIPERBOARD && USB
900	help
901	  Say yes here to access the GPIO signals of Nano River
902	  Technologies Viperboard. There are two GPIO chips on the
903	  board: gpioa and gpiob.
904          See viperboard API specification and Nano
905          River Tech's viperboard.h for detailed meaning
906          of the module parameters.
907
908endif
909