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David Brownella9c5fff2008-02-04 22:28:17 -08001#
Linus Walleije849dc02011-05-20 00:40:19 -06002# GPIO infrastructure and drivers
David Brownella9c5fff2008-02-04 22:28:17 -08003#
4
Michael Buesch7444a722008-07-25 01:46:11 -07005config ARCH_WANT_OPTIONAL_GPIOLIB
David Brownella9c5fff2008-02-04 22:28:17 -08006 bool
7 help
Michael Buesch7444a722008-07-25 01:46:11 -07008 Select this config option from the architecture Kconfig, if
9 it is possible to use gpiolib on the architecture, but let the
10 user decide whether to actually build it or not.
11 Select this instead of ARCH_REQUIRE_GPIOLIB, if your architecture does
12 not depend on GPIOs being available, but rather let the user
13 decide whether he needs it or not.
14
15config ARCH_REQUIRE_GPIOLIB
16 bool
17 select GPIOLIB
18 help
David Brownella9c5fff2008-02-04 22:28:17 -080019 Platforms select gpiolib if they use this infrastructure
20 for all their GPIOs, usually starting with ones integrated
21 into SOC processors.
Michael Buesch7444a722008-07-25 01:46:11 -070022 Selecting this from the architecture code will cause the gpiolib
23 code to always get built in.
David Brownella9c5fff2008-02-04 22:28:17 -080024
Michael Buesch7444a722008-07-25 01:46:11 -070025
26
27menuconfig GPIOLIB
28 bool "GPIO Support"
29 depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB
30 select GENERIC_GPIO
31 help
32 This enables GPIO support through the generic GPIO library.
33 You only need to enable this, if you also want to enable
Linus Walleije849dc02011-05-20 00:40:19 -060034 one or more of the GPIO drivers below.
Michael Buesch7444a722008-07-25 01:46:11 -070035
36 If unsure, say N.
37
38if GPIOLIB
David Brownella9c5fff2008-02-04 22:28:17 -080039
40config DEBUG_GPIO
41 bool "Debug GPIO calls"
42 depends on DEBUG_KERNEL
43 help
44 Say Y here to add some extra checks and diagnostics to GPIO calls.
Matt LaPlante692105b2009-01-26 11:12:25 +010045 These checks help ensure that GPIOs have been properly initialized
46 before they are used, and that sleeping calls are not made from
47 non-sleeping contexts. They can make bitbanged serial protocols
David Brownella9c5fff2008-02-04 22:28:17 -080048 slower. The diagnostics help catch the type of setup errors
49 that are most common when setting up new platforms or boards.
50
David Brownelld8f388d2008-07-25 01:46:07 -070051config GPIO_SYSFS
52 bool "/sys/class/gpio/... (sysfs interface)"
53 depends on SYSFS && EXPERIMENTAL
54 help
55 Say Y here to add a sysfs interface for GPIOs.
56
57 This is mostly useful to work around omissions in a system's
58 kernel support. Those are common in custom and semicustom
59 hardware assembled using standard kernels with a minimum of
60 custom patches. In those cases, userspace code may import
61 a given GPIO from the kernel, if no kernel driver requested it.
62
63 Kernel drivers may also request that a particular GPIO be
64 exported to userspace; this can be useful when debugging.
65
Grant Likelyc103de22011-06-04 18:38:28 -060066config GPIO_GENERIC
67 tristate
68
Linus Walleije849dc02011-05-20 00:40:19 -060069# put drivers in the right section, in alphabetical order
David Brownella9c5fff2008-02-04 22:28:17 -080070
ashishj307bfc912011-07-06 16:02:13 +053071config GPIO_DA9052
72 tristate "Dialog DA9052 GPIO"
73 depends on PMIC_DA9052
74 help
75 Say yes here to enable the GPIO driver for the DA9052 chip.
76
Wolfram Sange9528052010-03-05 13:44:33 -080077config GPIO_MAX730X
78 tristate
79
Linus Walleije849dc02011-05-20 00:40:19 -060080comment "Memory mapped GPIO drivers:"
John Linn0bcb6062008-11-12 13:25:38 -080081
Grant Likelyc103de22011-06-04 18:38:28 -060082config GPIO_GENERIC_PLATFORM
83 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
84 select GPIO_GENERIC
Jamie Iles280df6b2011-05-20 00:40:19 -060085 help
Grant Likelyc103de22011-06-04 18:38:28 -060086 Say yes here to support basic platform_device memory-mapped GPIO controllers.
Anton Vorontsovaeec56e2010-10-27 15:33:15 -070087
Denis Turischev9cc0cb32010-03-05 13:44:39 -080088config GPIO_IT8761E
89 tristate "IT8761E GPIO support"
Denis Turischev9cc0cb32010-03-05 13:44:39 -080090 help
91 Say yes here to support GPIO functionality of IT8761E super I/O chip.
92
H Hartley Sweetenc6b52c12011-06-01 10:09:19 -070093config GPIO_EP93XX
94 def_bool y
95 depends on ARCH_EP93XX
H Hartley Sweeten1e4c8842011-06-08 14:35:33 -070096 select GPIO_GENERIC
H Hartley Sweetenc6b52c12011-06-01 10:09:19 -070097
Kyungmin Parkab48f162011-05-23 17:27:45 +090098config GPIO_EXYNOS4
H Hartley Sweetena26221a2011-06-03 13:32:41 -050099 def_bool y
100 depends on CPU_EXYNOS4210
Kyungmin Parkab48f162011-05-23 17:27:45 +0900101
Grant Likely6eae1ac2011-07-06 11:54:19 -0600102config GPIO_MPC5200
103 def_bool y
104 depends on PPC_MPC52xx
105
David Brown74d10d72011-05-16 13:57:39 -0700106config GPIO_MSM_V1
107 tristate "Qualcomm MSM GPIO v1"
108 depends on GPIOLIB && ARCH_MSM
109 help
110 Say yes here to support the GPIO interface on ARM v6 based
111 Qualcomm MSM chips. Most of the pins on the MSM can be
112 selected for GPIO, and are controlled by this driver.
113
David Brown1a5ab4b2011-05-16 15:53:38 -0700114config GPIO_MSM_V2
115 tristate "Qualcomm MSM GPIO v2"
116 depends on GPIOLIB && ARCH_MSM
117 help
118 Say yes here to support the GPIO interface on ARM v7 based
119 Qualcomm MSM chips. Most of the pins on the MSM can be
120 selected for GPIO, and are controlled by this driver.
121
Shawn Guod37a65b2011-06-06 00:07:54 +0800122config GPIO_MXC
123 def_bool y
124 depends on ARCH_MXC
Grant Likelyc103de22011-06-04 18:38:28 -0600125 select GPIO_GENERIC
Shawn Guoe4ea9332011-06-07 16:25:37 +0800126 select GENERIC_IRQ_CHIP
Grant Likelyc103de22011-06-04 18:38:28 -0600127
128config GPIO_MXS
129 def_bool y
130 depends on ARCH_MXS
Shawn Guo06f88a82011-06-06 22:31:29 +0800131 select GPIO_GENERIC
Shawn Guo498c17c2011-06-07 22:00:54 +0800132 select GENERIC_IRQ_CHIP
Shawn Guod37a65b2011-06-06 00:07:54 +0800133
Kyungmin Parkfed6a022011-05-23 17:27:38 +0900134config GPIO_PLAT_SAMSUNG
H Hartley Sweetena26221a2011-06-03 13:32:41 -0500135 def_bool y
136 depends on SAMSUNG_GPIOLIB_4BIT
Kyungmin Parkfed6a022011-05-23 17:27:38 +0900137
Kyungmin Park82ab0f72011-05-23 17:27:58 +0900138config GPIO_S5PC100
H Hartley Sweetena26221a2011-06-03 13:32:41 -0500139 def_bool y
140 depends on CPU_S5PC100
Kyungmin Park82ab0f72011-05-23 17:27:58 +0900141
Kyungmin Park347ec4e2011-05-23 17:27:51 +0900142config GPIO_S5PV210
H Hartley Sweetena26221a2011-06-03 13:32:41 -0500143 def_bool y
144 depends on CPU_S5PV210
Kyungmin Park347ec4e2011-05-23 17:27:51 +0900145
Baruch Siach1e9c2852009-06-18 16:48:58 -0700146config GPIO_PL061
147 bool "PrimeCell PL061 GPIO support"
148 depends on ARM_AMBA
149 help
150 Say yes here to support the PrimeCell PL061 GPIO device
151
John Linn0bcb6062008-11-12 13:25:38 -0800152config GPIO_XILINX
153 bool "Xilinx GPIO support"
Michal Simek6fa612b2009-05-11 15:49:12 +0200154 depends on PPC_OF || MICROBLAZE
John Linn0bcb6062008-11-12 13:25:38 -0800155 help
156 Say yes here to support the Xilinx FPGA GPIO device
157
Yoichi Yuasa27fdd322009-06-29 11:11:05 +0900158config GPIO_VR41XX
159 tristate "NEC VR4100 series General-purpose I/O Uint support"
160 depends on CPU_VR41XX
161 help
162 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
163
Denis Turischevbe9b06b2010-03-02 10:48:55 +0100164config GPIO_SCH
Denis Turischevf04ddfc2011-03-14 12:53:05 +0200165 tristate "Intel SCH/TunnelCreek GPIO"
H Hartley Sweeten6cff9e22011-05-20 00:40:17 -0600166 depends on PCI && X86
Randy Dunlap860fb8c2010-03-05 09:43:06 -0800167 select MFD_CORE
Denis Turischevbe9b06b2010-03-02 10:48:55 +0100168 select LPC_SCH
169 help
Denis Turischevf04ddfc2011-03-14 12:53:05 +0200170 Say yes here to support GPIO interface on Intel Poulsbo SCH
171 or Intel Tunnel Creek processor.
Denis Turischevbe9b06b2010-03-02 10:48:55 +0100172 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
173 powered by the core power rail and are turned off during sleep
174 modes (S3 and higher). The remaining four GPIOs are powered by
175 the Intel SCH suspend power supply. These GPIOs remain
176 active during S3. The suspend powered GPIOs can be used to wake the
177 system from the Suspend-to-RAM state.
Denis Turischevf04ddfc2011-03-14 12:53:05 +0200178 The Intel Tunnel Creek processor has 5 GPIOs powered by the
179 core power rail and 9 from suspend power supply.
Denis Turischevbe9b06b2010-03-02 10:48:55 +0100180
Daniel Drake99ea2622010-09-30 21:55:48 +0100181config GPIO_VX855
182 tristate "VIA VX855/VX875 GPIO"
H Hartley Sweeten6cff9e22011-05-20 00:40:17 -0600183 depends on MFD_SUPPORT && PCI
Daniel Drake99ea2622010-09-30 21:55:48 +0100184 select MFD_CORE
185 select MFD_VX855
186 help
187 Support access to the VX855/VX875 GPIO lines through the gpio library.
188
189 This driver provides common support for accessing the device,
190 additional drivers must be enabled in order to use the
191 functionality of the device.
192
David Brownella9c5fff2008-02-04 22:28:17 -0800193comment "I2C GPIO expanders:"
194
Wolfram Sange9528052010-03-05 13:44:33 -0800195config GPIO_MAX7300
196 tristate "Maxim MAX7300 GPIO expander"
197 depends on I2C
198 select GPIO_MAX730X
199 help
200 GPIO driver for Maxim MAX7301 I2C-based GPIO expander.
201
Eric Miaobbcd6d52008-07-25 01:46:14 -0700202config GPIO_MAX732X
203 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
204 depends on I2C
205 help
206 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
207 Port Expanders. Each IO port on these chips has a fixed role of
208 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
209 Input and Output (designed by 'P'). The combinations are listed
210 below:
211
212 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
213 max7322 (4I4O), max7323 (4P4O)
214
215 16 bits: max7324 (8I8O), max7325 (8P8O),
216 max7326 (4I12O), max7327 (4P12O)
217
218 Board setup code must specify the model to use, and the start
219 number for these GPIOs.
220
Marc Zyngiera80a0bb2010-05-26 14:42:16 -0700221config GPIO_MAX732X_IRQ
222 bool "Interrupt controller support for MAX732x"
223 depends on GPIO_MAX732X=y && GENERIC_HARDIRQS
224 help
225 Say yes here to enable the max732x to be used as an interrupt
226 controller. It requires the driver to be built in the kernel.
227
Guennadi Liakhovetskif3dc3632008-02-06 01:39:03 -0800228config GPIO_PCA953X
David Brownellab5dc372009-01-06 14:42:27 -0800229 tristate "PCA953x, PCA955x, TCA64xx, and MAX7310 I/O ports"
eric miao9e60fdc2008-02-04 22:28:26 -0800230 depends on I2C
231 help
David Brownell7059d4b2008-07-04 09:59:37 -0700232 Say yes here to provide access to several register-oriented
233 SMBus I/O expanders, made mostly by NXP or TI. Compatible
234 models include:
235
236 4 bits: pca9536, pca9537
237
David Brownellab5dc372009-01-06 14:42:27 -0800238 8 bits: max7310, pca9534, pca9538, pca9554, pca9557,
239 tca6408
David Brownell7059d4b2008-07-04 09:59:37 -0700240
David Brownellab5dc372009-01-06 14:42:27 -0800241 16 bits: pca9535, pca9539, pca9555, tca6416
eric miao9e60fdc2008-02-04 22:28:26 -0800242
Marc Zyngier89ea8bb2010-03-05 13:44:36 -0800243config GPIO_PCA953X_IRQ
244 bool "Interrupt controller support for PCA953x"
245 depends on GPIO_PCA953X=y
246 help
247 Say yes here to enable the pca953x to be used as an interrupt
248 controller. It requires the driver to be built in the kernel.
249
David Brownell15fae372008-02-04 22:28:24 -0800250config GPIO_PCF857X
David Brownell1673ad52008-07-21 14:21:34 -0700251 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
David Brownell15fae372008-02-04 22:28:24 -0800252 depends on I2C
253 help
254 Say yes here to provide access to most "quasi-bidirectional" I2C
255 GPIO expanders used for additional digital outputs or inputs.
256 Most of these parts are from NXP, though TI is a second source for
257 some of them. Compatible models include:
258
259 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
David Brownell1673ad52008-07-21 14:21:34 -0700260 pca9670, pca9672, pca9674, pca9674a,
261 max7328, max7329
David Brownell15fae372008-02-04 22:28:24 -0800262
263 16 bits: pcf8575, pcf8575c, pca8575,
264 pca9671, pca9673, pca9675
265
266 Your board setup code will need to declare the expanders in
267 use, and assign numbers to the GPIOs they expose. Those GPIOs
268 can then be used from drivers and other kernel code, just like
269 other GPIOs, but only accessible from task contexts.
270
271 This driver provides an in-kernel interface to those GPIOs using
272 platform-neutral GPIO calls.
273
Gregory Beanc34f16b2010-08-10 18:02:27 -0700274config GPIO_SX150X
275 bool "Semtech SX150x I2C GPIO expander"
276 depends on I2C=y
277 default n
278 help
279 Say yes here to provide support for Semtech SX150-series I2C
280 GPIO expanders. Compatible models include:
281
282 8 bits: sx1508q
283 16 bits: sx1509q
284
Rabin Vincent03f822f2010-07-02 16:52:09 +0530285config GPIO_STMPE
286 bool "STMPE GPIOs"
287 depends on MFD_STMPE
288 help
289 This enables support for the GPIOs found on the STMPE I/O
290 Expanders.
291
Sundar Iyerf4e8afd2010-12-13 09:33:13 +0530292config GPIO_TC3589X
293 bool "TC3589X GPIOs"
294 depends on MFD_TC3589X
Rabin Vincentd88b25b2010-05-10 23:43:47 +0200295 help
Sundar Iyerf4e8afd2010-12-13 09:33:13 +0530296 This enables support for the GPIOs found on the TC3589X
Rabin Vincentd88b25b2010-05-10 23:43:47 +0200297 I/O Expander.
298
Margarita Olaya668a6cc2011-06-09 14:50:19 -0500299config GPIO_TPS65912
300 tristate "TI TPS65912 GPIO"
301 depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
302 help
303 This driver supports TPS65912 gpio chip
304
David Brownelle9d359472008-10-20 23:51:46 +0200305config GPIO_TWL4030
306 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
307 depends on TWL4030_CORE
308 help
309 Say yes here to access the GPIO signals of various multi-function
310 power management chips from Texas Instruments.
311
Mark Browne4b736f2009-07-27 14:46:00 +0100312config GPIO_WM831X
313 tristate "WM831x GPIOs"
314 depends on MFD_WM831X
315 help
316 Say yes here to access the GPIO signals of WM831x power management
317 chips from Wolfson Microelectronics.
318
Mark Brown38f6ce42010-01-07 16:10:08 +0000319config GPIO_WM8350
320 tristate "WM8350 GPIOs"
321 depends on MFD_WM8350
322 help
323 Say yes here to access the GPIO signals of WM8350 power management
324 chips from Wolfson Microelectronics.
325
Mark Brown2955c302010-01-29 18:20:30 +0000326config GPIO_WM8994
327 tristate "WM8994 GPIOs"
328 depends on MFD_WM8994
329 help
330 Say yes here to access the GPIO signals of WM8994 audio hub
331 CODECs from Wolfson Microelectronics.
332
Michael Hennerichef72af42009-09-22 16:46:39 -0700333config GPIO_ADP5520
334 tristate "GPIO Support for ADP5520 PMIC"
335 depends on PMIC_ADP5520
336 help
337 This option enables support for on-chip GPIO found
338 on Analog Devices ADP5520 PMICs.
339
Michael Hennerich80884092010-01-08 14:43:08 -0800340config GPIO_ADP5588
341 tristate "ADP5588 I2C GPIO expander"
342 depends on I2C
343 help
344 This option enables support for 18 GPIOs found
345 on Analog Devices ADP5588 GPIO Expanders.
Michael Hennerich80884092010-01-08 14:43:08 -0800346
Michael Hennerich459773a2010-10-27 15:33:19 -0700347config GPIO_ADP5588_IRQ
348 bool "Interrupt controller support for ADP5588"
349 depends on GPIO_ADP5588=y
350 help
351 Say yes here to enable the adp5588 to be used as an interrupt
352 controller. It requires the driver to be built in the kernel.
353
Michael Bueschff1d5c22008-07-25 01:46:10 -0700354comment "PCI GPIO expanders:"
355
Andres Salomon5f0a96b2009-12-14 18:00:32 -0800356config GPIO_CS5535
357 tristate "AMD CS5535/CS5536 GPIO support"
Ed Wildgoose073cc4e2011-04-07 15:51:15 -0700358 depends on PCI && X86 && !CS5535_GPIO && MFD_CS5535
Andres Salomon5f0a96b2009-12-14 18:00:32 -0800359 help
360 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
361 can be used for quite a number of things. The CS5535/6 is found on
362 AMD Geode and Lemote Yeeloong devices.
363
364 If unsure, say N.
365
Michael Bueschff1d5c22008-07-25 01:46:10 -0700366config GPIO_BT8XX
367 tristate "BT8XX GPIO abuser"
368 depends on PCI && VIDEO_BT848=n
369 help
370 The BT8xx frame grabber chip has 24 GPIO pins than can be abused
371 as a cheap PCI GPIO card.
372
373 This chip can be found on Miro, Hauppauge and STB TV-cards.
374
375 The card needs to be physically altered for using it as a
376 GPIO card. For more information on how to build a GPIO card
377 from a BT8xx TV card, see the documentation file at
378 Documentation/bt8xxgpio.txt
379
380 If unsure, say N.
381
Alek Du8bf02612009-09-22 16:46:36 -0700382config GPIO_LANGWELL
Alek Du8081c842010-05-26 14:42:25 -0700383 bool "Intel Langwell/Penwell GPIO support"
Thomas Gleixner61ab3fe2011-03-17 19:32:46 +0000384 depends on PCI && X86
Alek Du8bf02612009-09-22 16:46:36 -0700385 help
Alek Du8081c842010-05-26 14:42:25 -0700386 Say Y here to support Intel Langwell/Penwell GPIO.
Alek Du8bf02612009-09-22 16:46:36 -0700387
Tomoya MORINAGA04c17aa82010-10-27 15:33:21 -0700388config GPIO_PCH
Tomoya MORINAGAbc786cc2011-05-09 19:58:49 +0900389 tristate "Intel EG20T PCH / OKI SEMICONDUCTOR ML7223 IOH GPIO"
Thomas Gleixner61ab3fe2011-03-17 19:32:46 +0000390 depends on PCI && X86
Tomoya MORINAGA04c17aa82010-10-27 15:33:21 -0700391 help
392 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
393 which is an IOH(Input/Output Hub) for x86 embedded processor.
394 This driver can access PCH GPIO device.
395
Tomoya MORINAGAbc786cc2011-05-09 19:58:49 +0900396 This driver also can be used for OKI SEMICONDUCTOR IOH(Input/
397 Output Hub), ML7223.
398 ML7223 IOH is for MP(Media Phone) use.
399 ML7223 is companion chip for Intel Atom E6xx series.
400 ML7223 is completely compatible for Intel EG20T PCH.
401
Tomoya MORINAGA49a36792011-01-12 17:00:22 -0800402config GPIO_ML_IOH
403 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
404 depends on PCI
405 help
406 ML7213 is companion chip for Intel Atom E6xx series.
407 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
408 Hub) which is for IVI(In-Vehicle Infotainment) use.
409 This driver can access the IOH's GPIO device.
410
Richard Röjfors35570ac2009-12-15 16:46:18 -0800411config GPIO_TIMBERDALE
412 bool "Support for timberdale GPIO IP"
H Hartley Sweeten6cff9e22011-05-20 00:40:17 -0600413 depends on MFD_TIMBERDALE && HAS_IOMEM
Richard Röjfors35570ac2009-12-15 16:46:18 -0800414 ---help---
415 Add support for the GPIO IP in the timberdale FPGA.
416
Florian Fainelli9956d022010-03-21 01:06:09 +0100417config GPIO_RDC321X
418 tristate "RDC R-321x GPIO support"
H Hartley Sweeten6cff9e22011-05-20 00:40:17 -0600419 depends on PCI
Randy Dunlap6f7ab522011-01-12 17:00:21 -0800420 select MFD_SUPPORT
Randy Dunlape4be3cb2010-05-11 13:24:20 -0700421 select MFD_CORE
Florian Fainelli9956d022010-03-21 01:06:09 +0100422 select MFD_RDC321X
423 help
424 Support for the RDC R321x SoC GPIOs over southbridge
425 PCI configuration space.
426
David Brownella9c5fff2008-02-04 22:28:17 -0800427comment "SPI GPIO expanders:"
428
Juergen Beisert0c36ec32008-07-21 14:21:34 -0700429config GPIO_MAX7301
430 tristate "Maxim MAX7301 GPIO expander"
431 depends on SPI_MASTER
Wolfram Sange9528052010-03-05 13:44:33 -0800432 select GPIO_MAX730X
Juergen Beisert0c36ec32008-07-21 14:21:34 -0700433 help
Wolfram Sange9528052010-03-05 13:44:33 -0800434 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
Juergen Beisert0c36ec32008-07-21 14:21:34 -0700435
David Brownelle58b9e22008-02-04 22:28:25 -0800436config GPIO_MCP23S08
Peter Korsgaard752ad5e2011-07-15 10:25:32 +0200437 tristate "Microchip MCP23xxx I/O expander"
438 depends on SPI_MASTER || I2C
David Brownelle58b9e22008-02-04 22:28:25 -0800439 help
Peter Korsgaard752ad5e2011-07-15 10:25:32 +0200440 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
441 I/O expanders.
Peter Korsgaard0b7bb772011-03-09 17:56:30 +0100442 This provides a GPIO interface supporting inputs and outputs.
David Brownelle58b9e22008-02-04 22:28:25 -0800443
Richard Röjfors1e5db002009-09-22 16:46:34 -0700444config GPIO_MC33880
445 tristate "Freescale MC33880 high-side/low-side switch"
446 depends on SPI_MASTER
447 help
448 SPI driver for Freescale MC33880 high-side/low-side switch.
449 This provides GPIO interface supporting inputs and outputs.
450
Miguel Gaioead6db082010-10-27 15:33:18 -0700451config GPIO_74X164
452 tristate "74x164 serial-in/parallel-out 8-bits shift register"
453 depends on SPI_MASTER
454 help
455 Platform driver for 74x164 compatible serial-in/parallel-out
456 8-outputs shift registers. This driver can be used to provide access
457 to more gpio outputs.
458
Marek Vasut4cf8e532009-09-22 16:46:35 -0700459comment "AC97 GPIO expanders:"
460
461config GPIO_UCB1400
462 bool "Philips UCB1400 GPIO"
463 depends on UCB1400_CORE
464 help
465 This enables support for the Philips UCB1400 GPIO pins.
466 The UCB1400 is an AC97 audio codec.
467
Ira W. Snyder800e69f2010-04-07 10:08:01 +0200468comment "MODULbus GPIO expanders:"
469
470config GPIO_JANZ_TTL
471 tristate "Janz VMOD-TTL Digital IO Module"
472 depends on MFD_JANZ_CMODIO
473 help
474 This enables support for the Janz VMOD-TTL Digital IO module.
475 This driver provides support for driving the pins in output
476 mode only. Input mode is not supported.
477
Grant Likelyc103de22011-06-04 18:38:28 -0600478config GPIO_AB8500
Bibek Basu0cb3fcd2011-02-09 11:02:35 +0530479 bool "ST-Ericsson AB8500 Mixed Signal Circuit gpio functions"
Thomas Gleixner9ad198c2011-03-29 04:02:50 +0200480 depends on AB8500_CORE && BROKEN
Bibek Basu0cb3fcd2011-02-09 11:02:35 +0530481 help
482 Select this to enable the AB8500 IC GPIO driver
Jorge Eduardo Candelaria83545d82011-05-16 18:35:37 -0500483
484config GPIO_TPS65910
485 bool "TPS65910 GPIO"
486 depends on MFD_TPS65910
487 help
488 Select this option to enable GPIO driver for the TPS65910
489 chip family.
Michael Buesch7444a722008-07-25 01:46:11 -0700490endif