xref: /openbmc/linux/drivers/gpio/Kconfig (revision f5b06569)
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	select ANON_INODES
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	depends on HAS_IOMEM
54
55config GPIO_ACPI
56	def_bool y
57	depends on ACPI
58
59config GPIOLIB_IRQCHIP
60	select IRQ_DOMAIN
61	bool
62
63config DEBUG_GPIO
64	bool "Debug GPIO calls"
65	depends on DEBUG_KERNEL
66	help
67	  Say Y here to add some extra checks and diagnostics to GPIO calls.
68	  These checks help ensure that GPIOs have been properly initialized
69	  before they are used, and that sleeping calls are not made from
70	  non-sleeping contexts.  They can make bitbanged serial protocols
71	  slower.  The diagnostics help catch the type of setup errors
72	  that are most common when setting up new platforms or boards.
73
74config GPIO_SYSFS
75	bool "/sys/class/gpio/... (sysfs interface)"
76	depends on SYSFS
77	help
78	  Say Y here to add a sysfs interface for GPIOs.
79
80	  This is mostly useful to work around omissions in a system's
81	  kernel support.  Those are common in custom and semicustom
82	  hardware assembled using standard kernels with a minimum of
83	  custom patches.  In those cases, userspace code may import
84	  a given GPIO from the kernel, if no kernel driver requested it.
85
86	  Kernel drivers may also request that a particular GPIO be
87	  exported to userspace; this can be useful when debugging.
88
89config GPIO_GENERIC
90	tristate
91
92# put drivers in the right section, in alphabetical order
93
94# This symbol is selected by both I2C and SPI expanders
95config GPIO_MAX730X
96	tristate
97
98menu "Memory mapped GPIO drivers"
99
100config GPIO_74XX_MMIO
101	tristate "GPIO driver for 74xx-ICs with MMIO access"
102	depends on OF_GPIO
103	select GPIO_GENERIC
104	help
105	  Say yes here to support GPIO functionality for 74xx-compatible ICs
106	  with MMIO access. Compatible models include:
107	    1 bit:	741G125 (Input), 741G74 (Output)
108	    2 bits:	742G125 (Input), 7474 (Output)
109	    4 bits:	74125 (Input), 74175 (Output)
110	    6 bits:	74365 (Input), 74174 (Output)
111	    8 bits:	74244 (Input), 74273 (Output)
112	    16 bits:	741624 (Input), 7416374 (Output)
113
114config GPIO_ALTERA
115	tristate "Altera GPIO"
116	depends on OF_GPIO
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_AMDPT
124	tristate "AMD Promontory GPIO support"
125	depends on ACPI
126	select GPIO_GENERIC
127	help
128	  driver for GPIO functionality on Promontory IOHub
129	  Require ACPI ASL code to enumerate as a platform device.
130
131config GPIO_ATH79
132	tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
133	default y if ATH79
134	depends on ATH79 || COMPILE_TEST
135	select GPIO_GENERIC
136	select GPIOLIB_IRQCHIP
137	help
138	  Select this option to enable GPIO driver for
139	  Atheros AR71XX/AR724X/AR913X SoC devices.
140
141config GPIO_BCM_KONA
142	bool "Broadcom Kona GPIO"
143	depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
144	help
145	  Turn on GPIO support for Broadcom "Kona" chips.
146
147config GPIO_BRCMSTB
148	tristate "BRCMSTB GPIO support"
149	default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
150	depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
151	select GPIO_GENERIC
152	select GPIOLIB_IRQCHIP
153	help
154	  Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
155
156config GPIO_CLPS711X
157	tristate "CLPS711X GPIO support"
158	depends on ARCH_CLPS711X || COMPILE_TEST
159	select GPIO_GENERIC
160	help
161	  Say yes here to support GPIO on CLPS711X SoCs.
162
163config GPIO_DAVINCI
164	bool "TI Davinci/Keystone GPIO support"
165	default y if ARCH_DAVINCI
166	depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
167	help
168	  Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
169
170config GPIO_DWAPB
171	tristate "Synopsys DesignWare APB GPIO driver"
172	select GPIO_GENERIC
173	select GENERIC_IRQ_CHIP
174	help
175	  Say Y or M here to build support for the Synopsys DesignWare APB
176	  GPIO block.
177
178config GPIO_EM
179	tristate "Emma Mobile GPIO"
180	depends on ARM && OF_GPIO
181	help
182	  Say yes here to support GPIO on Renesas Emma Mobile SoCs.
183
184config GPIO_EP93XX
185	def_bool y
186	depends on ARCH_EP93XX
187	select GPIO_GENERIC
188
189config GPIO_ETRAXFS
190	bool "Axis ETRAX FS General I/O"
191	depends on CRIS || COMPILE_TEST
192	depends on OF_GPIO
193	select GPIO_GENERIC
194	select GPIOLIB_IRQCHIP
195	help
196	  Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.
197
198config GPIO_GE_FPGA
199	bool "GE FPGA based GPIO"
200	depends on GE_FPGA
201	select GPIO_GENERIC
202	help
203	  Support for common GPIO functionality provided on some GE Single Board
204	  Computers.
205
206	  This driver provides basic support (configure as input or output, read
207	  and write pin state) for GPIO implemented in a number of GE single
208	  board computers.
209
210config GPIO_GENERIC_PLATFORM
211	tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
212	select GPIO_GENERIC
213	help
214	  Say yes here to support basic platform_device memory-mapped GPIO controllers.
215
216config GPIO_GRGPIO
217	tristate "Aeroflex Gaisler GRGPIO support"
218	depends on OF_GPIO
219	select GPIO_GENERIC
220	select IRQ_DOMAIN
221	help
222	  Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
223	  VHDL IP core library.
224
225config GPIO_ICH
226	tristate "Intel ICH GPIO"
227	depends on PCI && X86
228	select MFD_CORE
229	select LPC_ICH
230	help
231	  Say yes here to support the GPIO functionality of a number of Intel
232	  ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
233	  ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
234	  Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
235
236	  If unsure, say N.
237
238config GPIO_IOP
239	tristate "Intel IOP GPIO"
240	depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
241	help
242	  Say yes here to support the GPIO functionality of a number of Intel
243	  IOP32X or IOP33X.
244
245	  If unsure, say N.
246
247config GPIO_LOONGSON
248	bool "Loongson-2/3 GPIO support"
249	depends on CPU_LOONGSON2 || CPU_LOONGSON3
250	help
251	  driver for GPIO functionality on Loongson-2F/3A/3B processors.
252
253config GPIO_LPC18XX
254	tristate "NXP LPC18XX/43XX GPIO support"
255	default y if ARCH_LPC18XX
256	depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
257	help
258	  Select this option to enable GPIO driver for
259	  NXP LPC18XX/43XX devices.
260
261config GPIO_LYNXPOINT
262	tristate "Intel Lynxpoint GPIO support"
263	depends on ACPI && X86
264	select GPIOLIB_IRQCHIP
265	help
266	  driver for GPIO functionality on Intel Lynxpoint PCH chipset
267	  Requires ACPI device enumeration code to set up a platform device.
268
269config GPIO_MB86S7X
270	bool "GPIO support for Fujitsu MB86S7x Platforms"
271	depends on ARCH_MB86S7X || COMPILE_TEST
272	help
273	  Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
274
275config GPIO_MENZ127
276	tristate "MEN 16Z127 GPIO support"
277	depends on MCB
278	select GPIO_GENERIC
279	help
280	 Say yes here to support the MEN 16Z127 GPIO Controller
281
282config GPIO_MM_LANTIQ
283	bool "Lantiq Memory mapped GPIOs"
284	depends on LANTIQ && SOC_XWAY
285	help
286	  This enables support for memory mapped GPIOs on the External Bus Unit
287	  (EBU) found on Lantiq SoCs. The gpios are output only as they are
288	  created by attaching a 16bit latch to the bus.
289
290config GPIO_MOXART
291	bool "MOXART GPIO support"
292	depends on ARCH_MOXART || COMPILE_TEST
293	select GPIO_GENERIC
294	help
295	  Select this option to enable GPIO driver for
296	  MOXA ART SoC devices.
297
298config GPIO_MPC5200
299	def_bool y
300	depends on PPC_MPC52xx
301
302config GPIO_MPC8XXX
303	bool "MPC512x/MPC8xxx/QorIQ GPIO support"
304	depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
305		   FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
306		   COMPILE_TEST
307	select GPIO_GENERIC
308	select IRQ_DOMAIN
309	help
310	  Say Y here if you're going to use hardware that connects to the
311	  MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
312
313config GPIO_MVEBU
314	def_bool y
315	depends on PLAT_ORION
316	depends on OF_GPIO
317	select GENERIC_IRQ_CHIP
318
319config GPIO_MXC
320	def_bool y
321	depends on ARCH_MXC
322	select GPIO_GENERIC
323	select GENERIC_IRQ_CHIP
324
325config GPIO_MXS
326	def_bool y
327	depends on ARCH_MXS
328	select GPIO_GENERIC
329	select GENERIC_IRQ_CHIP
330
331config GPIO_OCTEON
332	tristate "Cavium OCTEON GPIO"
333	depends on GPIOLIB && CAVIUM_OCTEON_SOC
334	default y
335	help
336	  Say yes here to support the on-chip GPIO lines on the OCTEON
337	  family of SOCs.
338
339config GPIO_OMAP
340	tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
341	default y if ARCH_OMAP
342	depends on ARM
343	select GENERIC_IRQ_CHIP
344	select GPIOLIB_IRQCHIP
345	help
346	  Say yes here to enable GPIO support for TI OMAP SoCs.
347
348config GPIO_PL061
349	bool "PrimeCell PL061 GPIO support"
350	depends on ARM_AMBA
351	select IRQ_DOMAIN
352	select GPIOLIB_IRQCHIP
353	help
354	  Say yes here to support the PrimeCell PL061 GPIO device
355
356config GPIO_PXA
357	bool "PXA GPIO support"
358	depends on ARCH_PXA || ARCH_MMP
359	help
360	  Say yes here to support the PXA GPIO device
361
362config GPIO_RCAR
363	tristate "Renesas R-Car GPIO"
364	depends on ARCH_RENESAS || COMPILE_TEST
365	select GPIOLIB_IRQCHIP
366	help
367	  Say yes here to support GPIO on Renesas R-Car SoCs.
368
369config GPIO_SPEAR_SPICS
370	bool "ST SPEAr13xx SPI Chip Select as GPIO support"
371	depends on PLAT_SPEAR
372	select GENERIC_IRQ_CHIP
373	help
374	  Say yes here to support ST SPEAr SPI Chip Select as GPIO device
375
376config GPIO_STA2X11
377	bool "STA2x11/ConneXt GPIO support"
378	depends on MFD_STA2X11
379	select GENERIC_IRQ_CHIP
380	help
381	  Say yes here to support the STA2x11/ConneXt GPIO device.
382	  The GPIO module has 128 GPIO pins with alternate functions.
383
384config GPIO_STP_XWAY
385	bool "XWAY STP GPIOs"
386	depends on SOC_XWAY
387	help
388	  This enables support for the Serial To Parallel (STP) unit found on
389	  XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
390	  that can be up to 24 bit. This peripheral is aimed at driving leds.
391	  Some of the gpios/leds can be auto updated by the soc with dsl and
392	  phy status.
393
394config GPIO_SYSCON
395	tristate "GPIO based on SYSCON"
396	depends on MFD_SYSCON && OF
397	help
398	  Say yes here to support GPIO functionality though SYSCON driver.
399
400config GPIO_TB10X
401	bool
402	select GENERIC_IRQ_CHIP
403	select OF_GPIO
404
405config GPIO_TEGRA
406	bool "NVIDIA Tegra GPIO support"
407	default ARCH_TEGRA
408	depends on ARCH_TEGRA || COMPILE_TEST
409	depends on OF_GPIO
410	help
411	  Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
412
413config GPIO_TS4800
414	tristate "TS-4800 DIO blocks and compatibles"
415	depends on OF_GPIO
416	depends on SOC_IMX51 || COMPILE_TEST
417	select GPIO_GENERIC
418	help
419	  This driver support TS-4800 FPGA GPIO controllers.
420
421config GPIO_TZ1090
422	bool "Toumaz Xenif TZ1090 GPIO support"
423	depends on SOC_TZ1090
424	select GENERIC_IRQ_CHIP
425	default y
426	help
427	  Say yes here to support Toumaz Xenif TZ1090 GPIOs.
428
429config GPIO_TZ1090_PDC
430	bool "Toumaz Xenif TZ1090 PDC GPIO support"
431	depends on SOC_TZ1090
432	default y
433	help
434	  Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
435
436config GPIO_VF610
437	def_bool y
438	depends on ARCH_MXC && SOC_VF610
439	select GPIOLIB_IRQCHIP
440	help
441	  Say yes here to support Vybrid vf610 GPIOs.
442
443config GPIO_VR41XX
444	tristate "NEC VR4100 series General-purpose I/O Uint support"
445	depends on CPU_VR41XX
446	help
447	  Say yes here to support the NEC VR4100 series General-purpose I/O Uint
448
449config GPIO_VX855
450	tristate "VIA VX855/VX875 GPIO"
451	depends on PCI
452	select MFD_CORE
453	select MFD_VX855
454	help
455	  Support access to the VX855/VX875 GPIO lines through the gpio library.
456
457	  This driver provides common support for accessing the device,
458	  additional drivers must be enabled in order to use the
459	  functionality of the device.
460
461config GPIO_XGENE
462	bool "APM X-Gene GPIO controller support"
463	depends on ARM64 && OF_GPIO
464	help
465	  This driver is to support the GPIO block within the APM X-Gene SoC
466	  platform's generic flash controller. The GPIO pins are muxed with
467	  the generic flash controller's address and data pins. Say yes
468	  here to enable the GFC GPIO functionality.
469
470config GPIO_XGENE_SB
471	tristate "APM X-Gene GPIO standby controller support"
472	depends on ARCH_XGENE && OF_GPIO
473	select GPIO_GENERIC
474	select GPIOLIB_IRQCHIP
475	help
476	  This driver supports the GPIO block within the APM X-Gene
477	  Standby Domain. Say yes here to enable the GPIO functionality.
478
479config GPIO_XILINX
480	tristate "Xilinx GPIO support"
481	depends on OF_GPIO
482	help
483	  Say yes here to support the Xilinx FPGA GPIO device
484
485config GPIO_XLP
486	tristate "Netlogic XLP GPIO support"
487	depends on OF_GPIO && (CPU_XLP || ARCH_VULCAN || COMPILE_TEST)
488	select GPIOLIB_IRQCHIP
489	help
490	  This driver provides support for GPIO interface on Netlogic XLP MIPS64
491	  SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
492	  XLP9XX and XLP5XX.
493
494	  If unsure, say N.
495
496config GPIO_XTENSA
497	bool "Xtensa GPIO32 support"
498	depends on XTENSA
499	depends on HAVE_XTENSA_GPIO32
500	depends on !SMP
501	help
502	  Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
503	  and EXPSTATE (output) ports
504
505config GPIO_ZEVIO
506	bool "LSI ZEVIO SoC memory mapped GPIOs"
507	depends on ARM && OF_GPIO
508	help
509	  Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
510
511config GPIO_ZYNQ
512	tristate "Xilinx Zynq GPIO support"
513	depends on ARCH_ZYNQ || ARCH_ZYNQMP
514	select GPIOLIB_IRQCHIP
515	help
516	  Say yes here to support Xilinx Zynq GPIO controller.
517
518config GPIO_ZX
519	bool "ZTE ZX GPIO support"
520	select GPIOLIB_IRQCHIP
521	help
522	  Say yes here to support the GPIO device on ZTE ZX SoCs.
523
524config GPIO_LOONGSON1
525	tristate "Loongson1 GPIO support"
526	depends on MACH_LOONGSON32
527	select GPIO_GENERIC
528	help
529	  Say Y or M here to support GPIO on Loongson1 SoCs.
530
531endmenu
532
533menu "Port-mapped I/O GPIO drivers"
534	depends on X86 # Unconditional I/O space access
535
536config GPIO_104_DIO_48E
537	tristate "ACCES 104-DIO-48E GPIO support"
538	depends on ISA_BUS_API
539	select GPIOLIB_IRQCHIP
540	help
541	  Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
542	  104-DIO-24E). The base port addresses for the devices may be
543	  configured via the base module parameter. The interrupt line numbers
544	  for the devices may be configured via the irq module parameter.
545
546config GPIO_104_IDIO_16
547	tristate "ACCES 104-IDIO-16 GPIO support"
548	depends on ISA_BUS_API
549	select GPIOLIB_IRQCHIP
550	help
551	  Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
552	  104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
553	  base port addresses for the devices may be configured via the base
554	  module parameter. The interrupt line numbers for the devices may be
555	  configured via the irq module parameter.
556
557config GPIO_104_IDI_48
558	tristate "ACCES 104-IDI-48 GPIO support"
559	depends on ISA_BUS_API
560	select GPIOLIB_IRQCHIP
561	help
562	  Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
563	  104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
564	  the devices may be configured via the base module parameter. The
565	  interrupt line numbers for the devices may be configured via the irq
566	  module parameter.
567
568config GPIO_F7188X
569	tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
570	help
571	  This option enables support for GPIOs found on Fintek Super-I/O
572	  chips F71869, F71869A, F71882FG, F71889F and F81866.
573
574	  To compile this driver as a module, choose M here: the module will
575	  be called f7188x-gpio.
576
577config GPIO_IT87
578	tristate "IT87xx GPIO support"
579	help
580	  Say yes here to support GPIO functionality of IT87xx Super I/O chips.
581
582	  This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
583	  supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
584
585	  To compile this driver as a module, choose M here: the module will
586	  be called gpio_it87
587
588config GPIO_SCH
589	tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
590	depends on PCI
591	select MFD_CORE
592	select LPC_SCH
593	help
594	  Say yes here to support GPIO interface on Intel Poulsbo SCH,
595	  Intel Tunnel Creek processor, Intel Centerton processor or
596	  Intel Quark X1000 SoC.
597
598	  The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
599	  powered by the core power rail and are turned off during sleep
600	  modes (S3 and higher). The remaining four GPIOs are powered by
601	  the Intel SCH suspend power supply. These GPIOs remain
602	  active during S3. The suspend powered GPIOs can be used to wake the
603	  system from the Suspend-to-RAM state.
604
605	  The Intel Tunnel Creek processor has 5 GPIOs powered by the
606	  core power rail and 9 from suspend power supply.
607
608	  The Intel Centerton processor has a total of 30 GPIO pins.
609	  Twenty-one are powered by the core power rail and 9 from the
610	  suspend power supply.
611
612	  The Intel Quark X1000 SoC has 2 GPIOs powered by the core
613	  power well and 6 from the suspend power well.
614
615config GPIO_SCH311X
616	tristate "SMSC SCH311x SuperI/O GPIO"
617	help
618	  Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
619	  SCH3116 "Super I/O" chipsets.
620
621	  To compile this driver as a module, choose M here: the module will
622	  be called gpio-sch311x.
623
624config GPIO_TS5500
625	tristate "TS-5500 DIO blocks and compatibles"
626	depends on TS5500 || COMPILE_TEST
627	help
628	  This driver supports Digital I/O exposed by pin blocks found on some
629	  Technologic Systems platforms. It includes, but is not limited to, 3
630	  blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
631	  LCD port.
632
633config GPIO_WS16C48
634	tristate "WinSystems WS16C48 GPIO support"
635	depends on ISA_BUS_API
636	select GPIOLIB_IRQCHIP
637	help
638	  Enables GPIO support for the WinSystems WS16C48. The base port
639	  addresses for the devices may be configured via the base module
640	  parameter. The interrupt line numbers for the devices may be
641	  configured via the irq module parameter.
642
643endmenu
644
645menu "I2C GPIO expanders"
646	depends on I2C
647
648config GPIO_ADP5588
649	tristate "ADP5588 I2C GPIO expander"
650	help
651	  This option enables support for 18 GPIOs found
652	  on Analog Devices ADP5588 GPIO Expanders.
653
654config GPIO_ADP5588_IRQ
655	bool "Interrupt controller support for ADP5588"
656	depends on GPIO_ADP5588=y
657	help
658	  Say yes here to enable the adp5588 to be used as an interrupt
659	  controller. It requires the driver to be built in the kernel.
660
661config GPIO_ADNP
662	tristate "Avionic Design N-bit GPIO expander"
663	depends on OF_GPIO
664	select GPIOLIB_IRQCHIP
665	help
666	  This option enables support for N GPIOs found on Avionic Design
667	  I2C GPIO expanders. The register space will be extended by powers
668	  of two, so the controller will need to accommodate for that. For
669	  example: if a controller provides 48 pins, 6 registers will be
670	  enough to represent all pins, but the driver will assume a
671	  register layout for 64 pins (8 registers).
672
673config GPIO_MAX7300
674	tristate "Maxim MAX7300 GPIO expander"
675	select GPIO_MAX730X
676	help
677	  GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
678
679config GPIO_MAX732X
680	tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
681	help
682	  Say yes here to support the MAX7319, MAX7320-7327 series of I2C
683	  Port Expanders. Each IO port on these chips has a fixed role of
684	  Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
685	  Input and Output (designed by 'P'). The combinations are listed
686	  below:
687
688	  8 bits:	max7319 (8I), max7320 (8O), max7321 (8P),
689		  	max7322 (4I4O), max7323 (4P4O)
690
691	  16 bits:	max7324 (8I8O), max7325 (8P8O),
692		  	max7326 (4I12O), max7327 (4P12O)
693
694	  Board setup code must specify the model to use, and the start
695	  number for these GPIOs.
696
697config GPIO_MAX732X_IRQ
698	bool "Interrupt controller support for MAX732x"
699	depends on GPIO_MAX732X=y
700	select GPIOLIB_IRQCHIP
701	help
702	  Say yes here to enable the max732x to be used as an interrupt
703	  controller. It requires the driver to be built in the kernel.
704
705config GPIO_MC9S08DZ60
706	bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
707	depends on I2C=y && MACH_MX35_3DS
708	help
709	  Select this to enable the MC9S08DZ60 GPIO driver
710
711config GPIO_PCA953X
712	tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
713	help
714	  Say yes here to provide access to several register-oriented
715	  SMBus I/O expanders, made mostly by NXP or TI.  Compatible
716	  models include:
717
718	  4 bits:	pca9536, pca9537
719
720	  8 bits:	max7310, max7315, pca6107, pca9534, pca9538, pca9554,
721			pca9556, pca9557, pca9574, tca6408, xra1202
722
723	  16 bits:	max7312, max7313, pca9535, pca9539, pca9555, pca9575,
724			tca6416
725
726	  24 bits:	tca6424
727
728	  40 bits:	pca9505, pca9698
729
730config GPIO_PCA953X_IRQ
731	bool "Interrupt controller support for PCA953x"
732	depends on GPIO_PCA953X=y
733	select GPIOLIB_IRQCHIP
734	help
735	  Say yes here to enable the pca953x to be used as an interrupt
736	  controller. It requires the driver to be built in the kernel.
737
738config GPIO_PCF857X
739	tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
740	select GPIOLIB_IRQCHIP
741	select IRQ_DOMAIN
742	help
743	  Say yes here to provide access to most "quasi-bidirectional" I2C
744	  GPIO expanders used for additional digital outputs or inputs.
745	  Most of these parts are from NXP, though TI is a second source for
746	  some of them.  Compatible models include:
747
748	  8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
749	            pca9670, pca9672, pca9674, pca9674a,
750	  	    max7328, max7329
751
752	  16 bits:  pcf8575, pcf8575c, pca8575,
753	            pca9671, pca9673, pca9675
754
755	  Your board setup code will need to declare the expanders in
756	  use, and assign numbers to the GPIOs they expose.  Those GPIOs
757	  can then be used from drivers and other kernel code, just like
758	  other GPIOs, but only accessible from task contexts.
759
760	  This driver provides an in-kernel interface to those GPIOs using
761	  platform-neutral GPIO calls.
762
763config GPIO_SX150X
764	bool "Semtech SX150x I2C GPIO expander"
765	depends on I2C=y
766	select GPIOLIB_IRQCHIP
767	default n
768	help
769	  Say yes here to provide support for Semtech SX150-series I2C
770	  GPIO expanders. Compatible models include:
771
772	  8 bits:  sx1508q
773	  16 bits: sx1509q
774
775config GPIO_TPIC2810
776	tristate "TPIC2810 8-Bit I2C GPO expander"
777	help
778	  Say yes here to enable the GPO driver for the TI TPIC2810 chip.
779
780	  To compile this driver as a module, choose M here: the module will
781	  be called gpio-tpic2810.
782
783endmenu
784
785menu "MFD GPIO expanders"
786
787config GPIO_ADP5520
788	tristate "GPIO Support for ADP5520 PMIC"
789	depends on PMIC_ADP5520
790	help
791	  This option enables support for on-chip GPIO found
792	  on Analog Devices ADP5520 PMICs.
793
794config GPIO_ARIZONA
795	tristate "Wolfson Microelectronics Arizona class devices"
796	depends on MFD_ARIZONA
797	help
798	  Support for GPIOs on Wolfson Arizona class devices.
799
800config GPIO_CRYSTAL_COVE
801	tristate "GPIO support for Crystal Cove PMIC"
802	depends on INTEL_SOC_PMIC
803	select GPIOLIB_IRQCHIP
804	help
805	  Support for GPIO pins on Crystal Cove PMIC.
806
807	  Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
808	  inside.
809
810	  This driver can also be built as a module. If so, the module will be
811	  called gpio-crystalcove.
812
813config GPIO_CS5535
814	tristate "AMD CS5535/CS5536 GPIO support"
815	depends on MFD_CS5535
816	help
817	  The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
818	  can be used for quite a number of things.  The CS5535/6 is found on
819	  AMD Geode and Lemote Yeeloong devices.
820
821	  If unsure, say N.
822
823config GPIO_DA9052
824	tristate "Dialog DA9052 GPIO"
825	depends on PMIC_DA9052
826	help
827	  Say yes here to enable the GPIO driver for the DA9052 chip.
828
829config GPIO_DA9055
830	tristate "Dialog Semiconductor DA9055 GPIO"
831	depends on MFD_DA9055
832	help
833	  Say yes here to enable the GPIO driver for the DA9055 chip.
834
835	  The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
836	  be controller by this driver.
837
838	  If driver is built as a module it will be called gpio-da9055.
839
840config GPIO_DLN2
841	tristate "Diolan DLN2 GPIO support"
842	depends on MFD_DLN2
843	select GPIOLIB_IRQCHIP
844
845	help
846	  Select this option to enable GPIO driver for the Diolan DLN2
847	  board.
848
849	  This driver can also be built as a module. If so, the module
850	  will be called gpio-dln2.
851
852config GPIO_JANZ_TTL
853	tristate "Janz VMOD-TTL Digital IO Module"
854	depends on MFD_JANZ_CMODIO
855	help
856	  This enables support for the Janz VMOD-TTL Digital IO module.
857	  This driver provides support for driving the pins in output
858	  mode only. Input mode is not supported.
859
860config GPIO_KEMPLD
861	tristate "Kontron ETX / COMexpress GPIO"
862	depends on MFD_KEMPLD
863	help
864	  This enables support for the PLD GPIO interface on some Kontron ETX
865	  and COMexpress (ETXexpress) modules.
866
867	  This driver can also be built as a module. If so, the module will be
868	  called gpio-kempld.
869
870config GPIO_LP3943
871	tristate "TI/National Semiconductor LP3943 GPIO expander"
872	depends on MFD_LP3943
873	help
874	  GPIO driver for LP3943 MFD.
875	  LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
876	  Open drain outputs are required for this usage.
877
878config GPIO_MAX77620
879	tristate "GPIO support for PMIC MAX77620 and MAX20024"
880	depends on MFD_MAX77620
881	help
882	  GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
883	  MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
884	  driver also provides interrupt support for each of the gpios.
885	  Say yes here to enable the max77620 to be used as gpio controller.
886
887config GPIO_MSIC
888	bool "Intel MSIC mixed signal gpio support"
889	depends on MFD_INTEL_MSIC
890	help
891	  Enable support for GPIO on intel MSIC controllers found in
892	  intel MID devices
893
894config GPIO_PALMAS
895	bool "TI PALMAS series PMICs GPIO"
896	depends on MFD_PALMAS
897	help
898	  Select this option to enable GPIO driver for the TI PALMAS
899	  series chip family.
900
901config GPIO_RC5T583
902	bool "RICOH RC5T583 GPIO"
903	depends on MFD_RC5T583
904	help
905	  Select this option to enable GPIO driver for the Ricoh RC5T583
906	  chip family.
907	  This driver provides the support for driving/reading the gpio pins
908	  of RC5T583 device through standard gpio library.
909
910config GPIO_STMPE
911	bool "STMPE GPIOs"
912	depends on MFD_STMPE
913	depends on OF_GPIO
914	select GPIOLIB_IRQCHIP
915	help
916	  This enables support for the GPIOs found on the STMPE I/O
917	  Expanders.
918
919config GPIO_TC3589X
920	bool "TC3589X GPIOs"
921	depends on MFD_TC3589X
922	depends on OF_GPIO
923	select GPIOLIB_IRQCHIP
924	help
925	  This enables support for the GPIOs found on the TC3589X
926	  I/O Expander.
927
928config GPIO_TIMBERDALE
929	bool "Support for timberdale GPIO IP"
930	depends on MFD_TIMBERDALE
931	---help---
932	Add support for the GPIO IP in the timberdale FPGA.
933
934config GPIO_TPS65086
935	tristate "TI TPS65086 GPO"
936	depends on MFD_TPS65086
937	help
938	  This driver supports the GPO on TI TPS65086x PMICs.
939
940config GPIO_TPS65218
941	tristate "TPS65218 GPIO"
942	depends on MFD_TPS65218
943	help
944	  Select this option to enable GPIO driver for the TPS65218
945	  chip family.
946
947config GPIO_TPS6586X
948	bool "TPS6586X GPIO"
949	depends on MFD_TPS6586X
950	help
951	  Select this option to enable GPIO driver for the TPS6586X
952	  chip family.
953
954config GPIO_TPS65910
955	bool "TPS65910 GPIO"
956	depends on MFD_TPS65910
957	help
958	  Select this option to enable GPIO driver for the TPS65910
959	  chip family.
960
961config GPIO_TPS65912
962	tristate "TI TPS65912 GPIO"
963	depends on MFD_TPS65912
964	help
965	  This driver supports TPS65912 gpio chip
966
967config GPIO_TWL4030
968	tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
969	depends on TWL4030_CORE
970	help
971	  Say yes here to access the GPIO signals of various multi-function
972	  power management chips from Texas Instruments.
973
974config GPIO_TWL6040
975	tristate "TWL6040 GPO"
976	depends on TWL6040_CORE
977	help
978	  Say yes here to access the GPO signals of twl6040
979	  audio chip from Texas Instruments.
980
981config GPIO_UCB1400
982	tristate "Philips UCB1400 GPIO"
983	depends on UCB1400_CORE
984	help
985	  This enables support for the Philips UCB1400 GPIO pins.
986	  The UCB1400 is an AC97 audio codec.
987
988config GPIO_WM831X
989	tristate "WM831x GPIOs"
990	depends on MFD_WM831X
991	help
992	  Say yes here to access the GPIO signals of WM831x power management
993	  chips from Wolfson Microelectronics.
994
995config GPIO_WM8350
996	tristate "WM8350 GPIOs"
997	depends on MFD_WM8350
998	help
999	  Say yes here to access the GPIO signals of WM8350 power management
1000	  chips from Wolfson Microelectronics.
1001
1002config GPIO_WM8994
1003	tristate "WM8994 GPIOs"
1004	depends on MFD_WM8994
1005	help
1006	  Say yes here to access the GPIO signals of WM8994 audio hub
1007	  CODECs from Wolfson Microelectronics.
1008
1009endmenu
1010
1011menu "PCI GPIO expanders"
1012	depends on PCI
1013
1014config GPIO_AMD8111
1015	tristate "AMD 8111 GPIO driver"
1016	help
1017	  The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1018
1019	  Note, that usually system firmware/ACPI handles GPIO pins on their
1020	  own and users might easily break their systems with uncarefull usage
1021	  of this driver!
1022
1023	  If unsure, say N
1024
1025config GPIO_BT8XX
1026	tristate "BT8XX GPIO abuser"
1027	depends on VIDEO_BT848=n
1028	help
1029	  The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1030	  as a cheap PCI GPIO card.
1031
1032	  This chip can be found on Miro, Hauppauge and STB TV-cards.
1033
1034	  The card needs to be physically altered for using it as a
1035	  GPIO card. For more information on how to build a GPIO card
1036	  from a BT8xx TV card, see the documentation file at
1037	  Documentation/bt8xxgpio.txt
1038
1039	  If unsure, say N.
1040
1041config GPIO_INTEL_MID
1042	bool "Intel MID GPIO support"
1043	depends on X86_INTEL_MID
1044	select GPIOLIB_IRQCHIP
1045	help
1046	  Say Y here to support Intel MID GPIO.
1047
1048config GPIO_MERRIFIELD
1049	tristate "Intel Merrifield GPIO support"
1050	depends on X86_INTEL_MID
1051	select GPIOLIB_IRQCHIP
1052	help
1053	  Say Y here to support Intel Merrifield GPIO.
1054
1055config GPIO_ML_IOH
1056	tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1057	select GENERIC_IRQ_CHIP
1058	help
1059	  ML7213 is companion chip for Intel Atom E6xx series.
1060	  This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1061	  Hub) which is for IVI(In-Vehicle Infotainment) use.
1062	  This driver can access the IOH's GPIO device.
1063
1064config GPIO_PCH
1065	tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1066	depends on X86_32 || MIPS || COMPILE_TEST
1067	select GENERIC_IRQ_CHIP
1068	help
1069	  This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1070	  which is an IOH(Input/Output Hub) for x86 embedded processor.
1071	  This driver can access PCH GPIO device.
1072
1073	  This driver also can be used for LAPIS Semiconductor IOH(Input/
1074	  Output Hub), ML7223 and ML7831.
1075	  ML7223 IOH is for MP(Media Phone) use.
1076	  ML7831 IOH is for general purpose use.
1077	  ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1078	  ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1079
1080config GPIO_RDC321X
1081	tristate "RDC R-321x GPIO support"
1082	select MFD_CORE
1083	select MFD_RDC321X
1084	help
1085	  Support for the RDC R321x SoC GPIOs over southbridge
1086	  PCI configuration space.
1087
1088config GPIO_SODAVILLE
1089	bool "Intel Sodaville GPIO support"
1090	depends on X86 && OF
1091	select GPIO_GENERIC
1092	select GENERIC_IRQ_CHIP
1093	help
1094	  Say Y here to support Intel Sodaville GPIO.
1095
1096endmenu
1097
1098menu "SPI GPIO expanders"
1099	depends on SPI_MASTER
1100
1101config GPIO_74X164
1102	tristate "74x164 serial-in/parallel-out 8-bits shift register"
1103	depends on OF_GPIO
1104	help
1105	  Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1106	  shift registers. This driver can be used to provide access
1107	  to more gpio outputs.
1108
1109config GPIO_MAX7301
1110	tristate "Maxim MAX7301 GPIO expander"
1111	select GPIO_MAX730X
1112	help
1113	  GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1114
1115config GPIO_MC33880
1116	tristate "Freescale MC33880 high-side/low-side switch"
1117	help
1118	  SPI driver for Freescale MC33880 high-side/low-side switch.
1119	  This provides GPIO interface supporting inputs and outputs.
1120
1121config GPIO_PISOSR
1122	tristate "Generic parallel-in/serial-out shift register"
1123	help
1124	  GPIO driver for SPI compatible parallel-in/serial-out shift
1125	  registers. These are input only devices.
1126
1127endmenu
1128
1129menu "SPI or I2C GPIO expanders"
1130	depends on (SPI_MASTER && !I2C) || I2C
1131
1132config GPIO_MCP23S08
1133	tristate "Microchip MCP23xxx I/O expander"
1134	select GPIOLIB_IRQCHIP
1135	help
1136	  SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
1137	  I/O expanders.
1138	  This provides a GPIO interface supporting inputs and outputs.
1139	  The I2C versions of the chips can be used as interrupt-controller.
1140
1141endmenu
1142
1143menu "USB GPIO expanders"
1144	depends on USB
1145
1146config GPIO_VIPERBOARD
1147	tristate "Viperboard GPIO a & b support"
1148	depends on MFD_VIPERBOARD
1149	help
1150	  Say yes here to access the GPIO signals of Nano River
1151	  Technologies Viperboard. There are two GPIO chips on the
1152	  board: gpioa and gpiob.
1153          See viperboard API specification and Nano
1154          River Tech's viperboard.h for detailed meaning
1155          of the module parameters.
1156
1157endmenu
1158
1159endif
1160