Commit | Line | Data |
---|---|---|
a9c5fff5 | 1 | # |
e849dc04 | 2 | # GPIO infrastructure and drivers |
a9c5fff5 DB |
3 | # |
4 | ||
7563bbf8 MB |
5 | config 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 | ||
7444a72e | 13 | config ARCH_WANT_OPTIONAL_GPIOLIB |
a9c5fff5 | 14 | bool |
7444a72e MB |
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 | ||
23 | config ARCH_REQUIRE_GPIOLIB | |
24 | bool | |
25 | select GPIOLIB | |
a9c5fff5 DB |
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. | |
7444a72e MB |
30 | Selecting this from the architecture code will cause the gpiolib |
31 | code to always get built in. | |
32 | ||
7444a72e MB |
33 | |
34 | menuconfig GPIOLIB | |
35 | bool "GPIO Support" | |
36 | depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB | |
7444a72e MB |
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 | |
e849dc04 | 40 | one or more of the GPIO drivers below. |
7444a72e MB |
41 | |
42 | If unsure, say N. | |
a9c5fff5 | 43 | |
7444a72e | 44 | if GPIOLIB |
a9c5fff5 | 45 | |
b69ac524 AC |
46 | config GPIO_DEVRES |
47 | def_bool y | |
48 | depends on HAS_IOMEM | |
49 | ||
f141ed65 GL |
50 | config OF_GPIO |
51 | def_bool y | |
afe760e4 | 52 | depends on OF |
f141ed65 | 53 | |
e29482e8 MN |
54 | config GPIO_ACPI |
55 | def_bool y | |
56 | depends on ACPI | |
57 | ||
a9c5fff5 DB |
58 | config DEBUG_GPIO |
59 | bool "Debug GPIO calls" | |
60 | depends on DEBUG_KERNEL | |
61 | help | |
62 | Say Y here to add some extra checks and diagnostics to GPIO calls. | |
692105b8 ML |
63 | These checks help ensure that GPIOs have been properly initialized |
64 | before they are used, and that sleeping calls are not made from | |
65 | non-sleeping contexts. They can make bitbanged serial protocols | |
a9c5fff5 DB |
66 | slower. The diagnostics help catch the type of setup errors |
67 | that are most common when setting up new platforms or boards. | |
68 | ||
d8f388d8 DB |
69 | config GPIO_SYSFS |
70 | bool "/sys/class/gpio/... (sysfs interface)" | |
4c0ea233 | 71 | depends on SYSFS |
d8f388d8 DB |
72 | help |
73 | Say Y here to add a sysfs interface for GPIOs. | |
74 | ||
75 | This is mostly useful to work around omissions in a system's | |
76 | kernel support. Those are common in custom and semicustom | |
77 | hardware assembled using standard kernels with a minimum of | |
78 | custom patches. In those cases, userspace code may import | |
79 | a given GPIO from the kernel, if no kernel driver requested it. | |
80 | ||
81 | Kernel drivers may also request that a particular GPIO be | |
82 | exported to userspace; this can be useful when debugging. | |
83 | ||
c103de24 GL |
84 | config GPIO_GENERIC |
85 | tristate | |
86 | ||
e849dc04 | 87 | # put drivers in the right section, in alphabetical order |
a9c5fff5 | 88 | |
07bfc915 | 89 | config GPIO_DA9052 |
90 | tristate "Dialog DA9052 GPIO" | |
1c4fe3aa | 91 | depends on PMIC_DA9052 |
07bfc915 | 92 | help |
93 | Say yes here to enable the GPIO driver for the DA9052 chip. | |
94 | ||
04ed4279 AJ |
95 | config GPIO_DA9055 |
96 | tristate "Dialog Semiconductor DA9055 GPIO" | |
97 | depends on MFD_DA9055 | |
98 | help | |
99 | Say yes here to enable the GPIO driver for the DA9055 chip. | |
100 | ||
101 | The Dialog DA9055 PMIC chip has 3 GPIO pins that can be | |
102 | be controller by this driver. | |
103 | ||
104 | If driver is built as a module it will be called gpio-da9055. | |
105 | ||
e952805d WS |
106 | config GPIO_MAX730X |
107 | tristate | |
108 | ||
e849dc04 | 109 | comment "Memory mapped GPIO drivers:" |
0bcb6069 | 110 | |
a3b8d4a5 | 111 | config GPIO_CLPS711X |
55fe14ab | 112 | tristate "CLPS711X GPIO support" |
ffd4bf1a | 113 | depends on ARCH_CLPS711X || COMPILE_TEST |
55fe14ab AS |
114 | select GPIO_GENERIC |
115 | help | |
116 | Say yes here to support GPIO on CLPS711X SoCs. | |
a3b8d4a5 | 117 | |
ee89cf63 GS |
118 | config GPIO_DAVINCI |
119 | bool "TI Davinci/Keystone GPIO support" | |
120 | default y if ARCH_DAVINCI | |
121 | depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE) | |
122 | help | |
123 | Say yes here to enable GPIO support for TI Davinci/Keystone SoCs. | |
124 | ||
c103de24 GL |
125 | config GPIO_GENERIC_PLATFORM |
126 | tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" | |
127 | select GPIO_GENERIC | |
aeec56e3 | 128 | help |
c103de24 | 129 | Say yes here to support basic platform_device memory-mapped GPIO controllers. |
aeec56e3 | 130 | |
9cc0cb3c DT |
131 | config GPIO_IT8761E |
132 | tristate "IT8761E GPIO support" | |
265fe02b | 133 | depends on X86 # unconditional access to IO space. |
9cc0cb3c DT |
134 | help |
135 | Say yes here to support GPIO functionality of IT8761E super I/O chip. | |
136 | ||
a07e103e MD |
137 | config GPIO_EM |
138 | tristate "Emma Mobile GPIO" | |
b5927854 | 139 | depends on ARM && OF_GPIO |
a07e103e MD |
140 | help |
141 | Say yes here to support GPIO on Renesas Emma Mobile SoCs. | |
142 | ||
c6b52c13 HS |
143 | config GPIO_EP93XX |
144 | def_bool y | |
145 | depends on ARCH_EP93XX | |
1e4c8842 | 146 | select GPIO_GENERIC |
c6b52c13 | 147 | |
5238f7bc JC |
148 | config GPIO_MM_LANTIQ |
149 | bool "Lantiq Memory mapped GPIOs" | |
150 | depends on LANTIQ && SOC_XWAY | |
151 | help | |
152 | This enables support for memory mapped GPIOs on the External Bus Unit | |
153 | (EBU) found on Lantiq SoCs. The gpios are output only as they are | |
154 | created by attaching a 16bit latch to the bus. | |
155 | ||
6c17aa01 SG |
156 | config GPIO_F7188X |
157 | tristate "F71882FG and F71889F GPIO support" | |
158 | depends on X86 | |
159 | help | |
160 | This option enables support for GPIOs found on Fintek Super-I/O | |
161 | chips F71882FG and F71889F. | |
162 | ||
163 | To compile this driver as a module, choose M here: the module will | |
164 | be called f7188x-gpio. | |
165 | ||
0299b77b JJ |
166 | config GPIO_MOXART |
167 | bool "MOXART GPIO support" | |
168 | depends on ARCH_MOXART | |
169 | help | |
170 | Select this option to enable GPIO driver for | |
171 | MOXA ART SoC devices. | |
172 | ||
6eae1ace GL |
173 | config GPIO_MPC5200 |
174 | def_bool y | |
175 | depends on PPC_MPC52xx | |
176 | ||
c68308dd WS |
177 | config GPIO_MPC8XXX |
178 | bool "MPC512x/MPC8xxx GPIO support" | |
179 | depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ | |
180 | FSL_SOC_BOOKE || PPC_86xx | |
181 | help | |
182 | Say Y here if you're going to use hardware that connects to the | |
183 | MPC512x/831x/834x/837x/8572/8610 GPIOs. | |
184 | ||
74d10d74 DB |
185 | config GPIO_MSM_V1 |
186 | tristate "Qualcomm MSM GPIO v1" | |
afcc0f8c | 187 | depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50) |
74d10d74 DB |
188 | help |
189 | Say yes here to support the GPIO interface on ARM v6 based | |
190 | Qualcomm MSM chips. Most of the pins on the MSM can be | |
191 | selected for GPIO, and are controlled by this driver. | |
192 | ||
1a5ab4b3 DB |
193 | config GPIO_MSM_V2 |
194 | tristate "Qualcomm MSM GPIO v2" | |
43f68444 | 195 | depends on GPIOLIB && OF && ARCH_MSM |
1a5ab4b3 DB |
196 | help |
197 | Say yes here to support the GPIO interface on ARM v7 based | |
198 | Qualcomm MSM chips. Most of the pins on the MSM can be | |
199 | selected for GPIO, and are controlled by this driver. | |
200 | ||
fefe7b09 TP |
201 | config GPIO_MVEBU |
202 | def_bool y | |
49e928d6 | 203 | depends on PLAT_ORION |
bc1008cf | 204 | depends on OF |
fefe7b09 TP |
205 | select GPIO_GENERIC |
206 | select GENERIC_IRQ_CHIP | |
207 | ||
d37a65bb SG |
208 | config GPIO_MXC |
209 | def_bool y | |
210 | depends on ARCH_MXC | |
c103de24 | 211 | select GPIO_GENERIC |
e4ea9333 | 212 | select GENERIC_IRQ_CHIP |
c103de24 GL |
213 | |
214 | config GPIO_MXS | |
215 | def_bool y | |
216 | depends on ARCH_MXS | |
06f88a8a | 217 | select GPIO_GENERIC |
498c17cf | 218 | select GENERIC_IRQ_CHIP |
d37a65bb | 219 | |
aca58a66 DD |
220 | config GPIO_OCTEON |
221 | tristate "Cavium OCTEON GPIO" | |
222 | depends on GPIOLIB && CAVIUM_OCTEON_SOC | |
223 | default y | |
224 | help | |
225 | Say yes here to support the on-chip GPIO lines on the OCTEON | |
226 | family of SOCs. | |
227 | ||
1e9c2859 BS |
228 | config GPIO_PL061 |
229 | bool "PrimeCell PL061 GPIO support" | |
8a242842 | 230 | depends on ARM_AMBA |
a5d6d271 | 231 | select IRQ_DOMAIN |
1e9c2859 BS |
232 | help |
233 | Say yes here to support the PrimeCell PL061 GPIO device | |
234 | ||
157d2644 HZ |
235 | config GPIO_PXA |
236 | bool "PXA GPIO support" | |
237 | depends on ARCH_PXA || ARCH_MMP | |
238 | help | |
239 | Say yes here to support the PXA GPIO device | |
240 | ||
119f5e44 MD |
241 | config GPIO_RCAR |
242 | tristate "Renesas R-Car GPIO" | |
243 | depends on ARM | |
244 | help | |
245 | Say yes here to support GPIO on Renesas R-Car SoCs. | |
246 | ||
880cf071 TF |
247 | config GPIO_SAMSUNG |
248 | bool | |
249 | depends on PLAT_SAMSUNG | |
250 | help | |
251 | Legacy GPIO support. Use only for platforms without support for | |
252 | pinctrl. | |
253 | ||
12262bef BR |
254 | config GPIO_SCH311X |
255 | tristate "SMSC SCH311x SuperI/O GPIO" | |
256 | help | |
257 | Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and | |
258 | SCH3116 "Super I/O" chipsets. | |
259 | ||
260 | To compile this driver as a module, choose M here: the module will | |
261 | be called gpio-sch311x. | |
262 | ||
b53bc281 SH |
263 | config GPIO_SPEAR_SPICS |
264 | bool "ST SPEAr13xx SPI Chip Select as GPIO support" | |
265 | depends on PLAT_SPEAR | |
266 | select GENERIC_IRQ_CHIP | |
267 | help | |
268 | Say yes here to support ST SPEAr SPI Chip Select as GPIO device | |
269 | ||
7b0d44f3 AR |
270 | config GPIO_STA2X11 |
271 | bool "STA2x11/ConneXt GPIO support" | |
272 | depends on MFD_STA2X11 | |
273 | select GENERIC_IRQ_CHIP | |
274 | help | |
275 | Say yes here to support the STA2x11/ConneXt GPIO device. | |
276 | The GPIO module has 128 GPIO pins with alternate functions. | |
277 | ||
759f5f37 VD |
278 | config GPIO_TS5500 |
279 | tristate "TS-5500 DIO blocks and compatibles" | |
280 | help | |
281 | This driver supports Digital I/O exposed by pin blocks found on some | |
282 | Technologic Systems platforms. It includes, but is not limited to, 3 | |
283 | blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 | |
284 | LCD port. | |
285 | ||
9caf1f22 JH |
286 | config GPIO_TZ1090 |
287 | bool "Toumaz Xenif TZ1090 GPIO support" | |
288 | depends on SOC_TZ1090 | |
04777396 | 289 | select GENERIC_IRQ_CHIP |
9caf1f22 JH |
290 | default y |
291 | help | |
292 | Say yes here to support Toumaz Xenif TZ1090 GPIOs. | |
293 | ||
79bb6460 JH |
294 | config GPIO_TZ1090_PDC |
295 | bool "Toumaz Xenif TZ1090 PDC GPIO support" | |
296 | depends on SOC_TZ1090 | |
297 | default y | |
298 | help | |
299 | Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs. | |
300 | ||
0bcb6069 JL |
301 | config GPIO_XILINX |
302 | bool "Xilinx GPIO support" | |
78c7d8d2 | 303 | depends on PPC_OF || MICROBLAZE || ARCH_ZYNQ |
0bcb6069 JL |
304 | help |
305 | Say yes here to support the Xilinx FPGA GPIO device | |
306 | ||
3b31d0ec BS |
307 | config GPIO_XTENSA |
308 | bool "Xtensa GPIO32 support" | |
309 | depends on XTENSA | |
a1a2bdec | 310 | depends on HAVE_XTENSA_GPIO32 |
3b31d0ec BS |
311 | depends on !SMP |
312 | help | |
313 | Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) | |
314 | and EXPSTATE (output) ports | |
315 | ||
27fdd325 YY |
316 | config GPIO_VR41XX |
317 | tristate "NEC VR4100 series General-purpose I/O Uint support" | |
318 | depends on CPU_VR41XX | |
319 | help | |
320 | Say yes here to support the NEC VR4100 series General-purpose I/O Uint | |
321 | ||
be9b06b2 | 322 | config GPIO_SCH |
77820ffa | 323 | tristate "Intel SCH/TunnelCreek/Centerton GPIO" |
6cff9e2b | 324 | depends on PCI && X86 |
860fb8c1 | 325 | select MFD_CORE |
be9b06b2 DT |
326 | select LPC_SCH |
327 | help | |
77820ffa SH |
328 | Say yes here to support GPIO interface on Intel Poulsbo SCH, |
329 | Intel Tunnel Creek processor or Intel Centerton processor. | |
be9b06b2 DT |
330 | The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are |
331 | powered by the core power rail and are turned off during sleep | |
332 | modes (S3 and higher). The remaining four GPIOs are powered by | |
333 | the Intel SCH suspend power supply. These GPIOs remain | |
334 | active during S3. The suspend powered GPIOs can be used to wake the | |
335 | system from the Suspend-to-RAM state. | |
f04ddfcd DT |
336 | The Intel Tunnel Creek processor has 5 GPIOs powered by the |
337 | core power rail and 9 from suspend power supply. | |
77820ffa SH |
338 | The Intel Centerton processor has a total of 30 GPIO pins. |
339 | Twenty-one are powered by the core power rail and 9 from the | |
340 | suspend power supply. | |
be9b06b2 | 341 | |
6ed9f9c4 PT |
342 | config GPIO_ICH |
343 | tristate "Intel ICH GPIO" | |
344 | depends on PCI && X86 | |
345 | select MFD_CORE | |
346 | select LPC_ICH | |
347 | help | |
348 | Say yes here to support the GPIO functionality of a number of Intel | |
349 | ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 | |
350 | ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg | |
351 | Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). | |
352 | ||
353 | If unsure, say N. | |
be9b06b2 | 354 | |
e9004f50 LW |
355 | config GPIO_IOP |
356 | tristate "Intel IOP GPIO" | |
357 | depends on ARM && (ARCH_IOP32X || ARCH_IOP33X) | |
358 | help | |
359 | Say yes here to support the GPIO functionality of a number of Intel | |
360 | IOP32X or IOP33X. | |
361 | ||
362 | If unsure, say N. | |
be9b06b2 | 363 | |
99ea2626 DD |
364 | config GPIO_VX855 |
365 | tristate "VIA VX855/VX875 GPIO" | |
0244ad00 | 366 | depends on PCI |
99ea2626 DD |
367 | select MFD_CORE |
368 | select MFD_VX855 | |
369 | help | |
370 | Support access to the VX855/VX875 GPIO lines through the gpio library. | |
371 | ||
372 | This driver provides common support for accessing the device, | |
373 | additional drivers must be enabled in order to use the | |
374 | functionality of the device. | |
375 | ||
6518bb69 MW |
376 | config GPIO_GE_FPGA |
377 | bool "GE FPGA based GPIO" | |
378 | depends on GE_FPGA | |
379 | help | |
380 | Support for common GPIO functionality provided on some GE Single Board | |
381 | Computers. | |
382 | ||
383 | This driver provides basic support (configure as input or output, read | |
384 | and write pin state) for GPIO implemented in a number of GE single | |
385 | board computers. | |
386 | ||
1d09aaa6 | 387 | config GPIO_LYNXPOINT |
d463c6ff | 388 | tristate "Intel Lynxpoint GPIO support" |
977d16b8 | 389 | depends on ACPI && X86 |
1d09aaa6 MN |
390 | select IRQ_DOMAIN |
391 | help | |
392 | driver for GPIO functionality on Intel Lynxpoint PCH chipset | |
393 | Requires ACPI device enumeration code to set up a platform device. | |
394 | ||
ddb27f3b AL |
395 | config GPIO_GRGPIO |
396 | tristate "Aeroflex Gaisler GRGPIO support" | |
397 | depends on OF | |
398 | select GPIO_GENERIC | |
399 | select IRQ_DOMAIN | |
400 | help | |
401 | Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB | |
402 | VHDL IP core library. | |
403 | ||
c6ce2b6b CR |
404 | config GPIO_TB10X |
405 | bool | |
406 | select OF_GPIO | |
407 | ||
a9c5fff5 DB |
408 | comment "I2C GPIO expanders:" |
409 | ||
31ba56f2 MB |
410 | config GPIO_ARIZONA |
411 | tristate "Wolfson Microelectronics Arizona class devices" | |
412 | depends on MFD_ARIZONA | |
413 | help | |
414 | Support for GPIOs on Wolfson Arizona class devices. | |
415 | ||
0cc59b9d MK |
416 | config GPIO_LP3943 |
417 | tristate "TI/National Semiconductor LP3943 GPIO expander" | |
418 | depends on MFD_LP3943 | |
419 | help | |
420 | GPIO driver for LP3943 MFD. | |
421 | LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. | |
422 | Open drain outputs are required for this usage. | |
423 | ||
e952805d WS |
424 | config GPIO_MAX7300 |
425 | tristate "Maxim MAX7300 GPIO expander" | |
426 | depends on I2C | |
427 | select GPIO_MAX730X | |
428 | help | |
2b861f4b | 429 | GPIO driver for Maxim MAX7300 I2C-based GPIO expander. |
e952805d | 430 | |
bbcd6d54 EM |
431 | config GPIO_MAX732X |
432 | tristate "MAX7319, MAX7320-7327 I2C Port Expanders" | |
433 | depends on I2C | |
434 | help | |
435 | Say yes here to support the MAX7319, MAX7320-7327 series of I2C | |
436 | Port Expanders. Each IO port on these chips has a fixed role of | |
437 | Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain | |
438 | Input and Output (designed by 'P'). The combinations are listed | |
439 | below: | |
440 | ||
441 | 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), | |
442 | max7322 (4I4O), max7323 (4P4O) | |
443 | ||
444 | 16 bits: max7324 (8I8O), max7325 (8P8O), | |
445 | max7326 (4I12O), max7327 (4P12O) | |
446 | ||
447 | Board setup code must specify the model to use, and the start | |
448 | number for these GPIOs. | |
449 | ||
a80a0bbe MZ |
450 | config GPIO_MAX732X_IRQ |
451 | bool "Interrupt controller support for MAX732x" | |
0244ad00 | 452 | depends on GPIO_MAX732X=y |
a80a0bbe MZ |
453 | help |
454 | Say yes here to enable the max732x to be used as an interrupt | |
455 | controller. It requires the driver to be built in the kernel. | |
456 | ||
608589b1 | 457 | config GPIO_MC9S08DZ60 |
458 | bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions" | |
4c30aa33 | 459 | depends on I2C=y && MACH_MX35_3DS |
608589b1 | 460 | help |
461 | Select this to enable the MC9S08DZ60 GPIO driver | |
462 | ||
f3dc3630 | 463 | config GPIO_PCA953X |
eb32b5aa | 464 | tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" |
9e60fdcf | 465 | depends on I2C |
466 | help | |
7059d4b0 DB |
467 | Say yes here to provide access to several register-oriented |
468 | SMBus I/O expanders, made mostly by NXP or TI. Compatible | |
469 | models include: | |
470 | ||
471 | 4 bits: pca9536, pca9537 | |
472 | ||
c29985dd | 473 | 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, |
e73760a6 | 474 | pca9556, pca9557, pca9574, tca6408, xra1202 |
7059d4b0 | 475 | |
c29985dd AL |
476 | 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, |
477 | tca6416 | |
9e60fdcf | 478 | |
1e191695 AS |
479 | 24 bits: tca6424 |
480 | ||
eb32b5aa | 481 | 40 bits: pca9505, pca9698 |
1e191695 | 482 | |
89ea8bbe MZ |
483 | config GPIO_PCA953X_IRQ |
484 | bool "Interrupt controller support for PCA953x" | |
485 | depends on GPIO_PCA953X=y | |
486 | help | |
487 | Say yes here to enable the pca953x to be used as an interrupt | |
488 | controller. It requires the driver to be built in the kernel. | |
489 | ||
15fae37d | 490 | config GPIO_PCF857X |
1673ad52 | 491 | tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" |
15fae37d | 492 | depends on I2C |
901acf5b | 493 | select IRQ_DOMAIN |
15fae37d DB |
494 | help |
495 | Say yes here to provide access to most "quasi-bidirectional" I2C | |
496 | GPIO expanders used for additional digital outputs or inputs. | |
497 | Most of these parts are from NXP, though TI is a second source for | |
498 | some of them. Compatible models include: | |
499 | ||
500 | 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, | |
1673ad52 DB |
501 | pca9670, pca9672, pca9674, pca9674a, |
502 | max7328, max7329 | |
15fae37d DB |
503 | |
504 | 16 bits: pcf8575, pcf8575c, pca8575, | |
505 | pca9671, pca9673, pca9675 | |
506 | ||
507 | Your board setup code will need to declare the expanders in | |
508 | use, and assign numbers to the GPIOs they expose. Those GPIOs | |
509 | can then be used from drivers and other kernel code, just like | |
510 | other GPIOs, but only accessible from task contexts. | |
511 | ||
512 | This driver provides an in-kernel interface to those GPIOs using | |
513 | platform-neutral GPIO calls. | |
514 | ||
e9fe32bc LD |
515 | config GPIO_RC5T583 |
516 | bool "RICOH RC5T583 GPIO" | |
517 | depends on MFD_RC5T583 | |
518 | help | |
519 | Select this option to enable GPIO driver for the Ricoh RC5T583 | |
520 | chip family. | |
521 | This driver provides the support for driving/reading the gpio pins | |
522 | of RC5T583 device through standard gpio library. | |
523 | ||
c34f16b7 GB |
524 | config GPIO_SX150X |
525 | bool "Semtech SX150x I2C GPIO expander" | |
526 | depends on I2C=y | |
527 | default n | |
528 | help | |
529 | Say yes here to provide support for Semtech SX150-series I2C | |
530 | GPIO expanders. Compatible models include: | |
531 | ||
532 | 8 bits: sx1508q | |
533 | 16 bits: sx1509q | |
534 | ||
03f822f5 RV |
535 | config GPIO_STMPE |
536 | bool "STMPE GPIOs" | |
537 | depends on MFD_STMPE | |
538 | help | |
539 | This enables support for the GPIOs found on the STMPE I/O | |
540 | Expanders. | |
541 | ||
5238f7bc JC |
542 | config GPIO_STP_XWAY |
543 | bool "XWAY STP GPIOs" | |
544 | depends on SOC_XWAY | |
545 | help | |
546 | This enables support for the Serial To Parallel (STP) unit found on | |
547 | XWAY SoC. The STP allows the SoC to drive a shift registers cascade, | |
548 | that can be up to 24 bit. This peripheral is aimed at driving leds. | |
549 | Some of the gpios/leds can be auto updated by the soc with dsl and | |
550 | phy status. | |
551 | ||
f4e8afdc SI |
552 | config GPIO_TC3589X |
553 | bool "TC3589X GPIOs" | |
554 | depends on MFD_TC3589X | |
d88b25be | 555 | help |
f4e8afdc | 556 | This enables support for the GPIOs found on the TC3589X |
d88b25be RV |
557 | I/O Expander. |
558 | ||
668a6cc7 MO |
559 | config GPIO_TPS65912 |
560 | tristate "TI TPS65912 GPIO" | |
561 | depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI) | |
562 | help | |
563 | This driver supports TPS65912 gpio chip | |
564 | ||
e9d35947 DB |
565 | config GPIO_TWL4030 |
566 | tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" | |
567 | depends on TWL4030_CORE | |
568 | help | |
569 | Say yes here to access the GPIO signals of various multi-function | |
570 | power management chips from Texas Instruments. | |
571 | ||
70ffd691 PU |
572 | config GPIO_TWL6040 |
573 | tristate "TWL6040 GPO" | |
574 | depends on TWL6040_CORE | |
575 | help | |
576 | Say yes here to access the GPO signals of twl6040 | |
577 | audio chip from Texas Instruments. | |
578 | ||
e4b736f1 MB |
579 | config GPIO_WM831X |
580 | tristate "WM831x GPIOs" | |
581 | depends on MFD_WM831X | |
582 | help | |
583 | Say yes here to access the GPIO signals of WM831x power management | |
584 | chips from Wolfson Microelectronics. | |
585 | ||
38f6ce45 MB |
586 | config GPIO_WM8350 |
587 | tristate "WM8350 GPIOs" | |
588 | depends on MFD_WM8350 | |
589 | help | |
590 | Say yes here to access the GPIO signals of WM8350 power management | |
591 | chips from Wolfson Microelectronics. | |
592 | ||
2955c309 MB |
593 | config GPIO_WM8994 |
594 | tristate "WM8994 GPIOs" | |
595 | depends on MFD_WM8994 | |
596 | help | |
597 | Say yes here to access the GPIO signals of WM8994 audio hub | |
598 | CODECs from Wolfson Microelectronics. | |
599 | ||
ef72af40 MH |
600 | config GPIO_ADP5520 |
601 | tristate "GPIO Support for ADP5520 PMIC" | |
602 | depends on PMIC_ADP5520 | |
603 | help | |
604 | This option enables support for on-chip GPIO found | |
605 | on Analog Devices ADP5520 PMICs. | |
606 | ||
80884094 MH |
607 | config GPIO_ADP5588 |
608 | tristate "ADP5588 I2C GPIO expander" | |
609 | depends on I2C | |
610 | help | |
611 | This option enables support for 18 GPIOs found | |
612 | on Analog Devices ADP5588 GPIO Expanders. | |
80884094 | 613 | |
459773ae MH |
614 | config GPIO_ADP5588_IRQ |
615 | bool "Interrupt controller support for ADP5588" | |
616 | depends on GPIO_ADP5588=y | |
617 | help | |
618 | Say yes here to enable the adp5588 to be used as an interrupt | |
619 | controller. It requires the driver to be built in the kernel. | |
620 | ||
5e969a40 TR |
621 | config GPIO_ADNP |
622 | tristate "Avionic Design N-bit GPIO expander" | |
cb144fe8 | 623 | depends on I2C && OF_GPIO |
5e969a40 TR |
624 | help |
625 | This option enables support for N GPIOs found on Avionic Design | |
626 | I2C GPIO expanders. The register space will be extended by powers | |
e41e85cc | 627 | of two, so the controller will need to accommodate for that. For |
5e969a40 TR |
628 | example: if a controller provides 48 pins, 6 registers will be |
629 | enough to represent all pins, but the driver will assume a | |
630 | register layout for 64 pins (8 registers). | |
631 | ||
ff1d5c2f MB |
632 | comment "PCI GPIO expanders:" |
633 | ||
5f0a96b0 AS |
634 | config GPIO_CS5535 |
635 | tristate "AMD CS5535/CS5536 GPIO support" | |
babf000e | 636 | depends on PCI && X86 && MFD_CS5535 |
5f0a96b0 AS |
637 | help |
638 | The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that | |
639 | can be used for quite a number of things. The CS5535/6 is found on | |
640 | AMD Geode and Lemote Yeeloong devices. | |
641 | ||
642 | If unsure, say N. | |
643 | ||
ff1d5c2f MB |
644 | config GPIO_BT8XX |
645 | tristate "BT8XX GPIO abuser" | |
646 | depends on PCI && VIDEO_BT848=n | |
647 | help | |
648 | The BT8xx frame grabber chip has 24 GPIO pins than can be abused | |
649 | as a cheap PCI GPIO card. | |
650 | ||
651 | This chip can be found on Miro, Hauppauge and STB TV-cards. | |
652 | ||
653 | The card needs to be physically altered for using it as a | |
654 | GPIO card. For more information on how to build a GPIO card | |
655 | from a BT8xx TV card, see the documentation file at | |
656 | Documentation/bt8xxgpio.txt | |
657 | ||
658 | If unsure, say N. | |
659 | ||
f942a7de DES |
660 | config GPIO_AMD8111 |
661 | tristate "AMD 8111 GPIO driver" | |
662 | depends on PCI | |
663 | help | |
664 | The AMD 8111 south bridge contains 32 GPIO pins which can be used. | |
665 | ||
666 | Note, that usually system firmware/ACPI handles GPIO pins on their | |
667 | own and users might easily break their systems with uncarefull usage | |
668 | of this driver! | |
669 | ||
670 | If unsure, say N | |
671 | ||
84743ea3 DC |
672 | config GPIO_INTEL_MID |
673 | bool "Intel Mid GPIO support" | |
61ab3fe5 | 674 | depends on PCI && X86 |
465f2bd4 | 675 | select IRQ_DOMAIN |
8bf02617 | 676 | help |
84743ea3 | 677 | Say Y here to support Intel Mid GPIO. |
8bf02617 | 678 | |
04c17aa8 | 679 | config GPIO_PCH |
868fea05 | 680 | tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO" |
61ab3fe5 | 681 | depends on PCI && X86 |
38eb18a6 | 682 | select GENERIC_IRQ_CHIP |
04c17aa8 TM |
683 | help |
684 | This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff | |
685 | which is an IOH(Input/Output Hub) for x86 embedded processor. | |
686 | This driver can access PCH GPIO device. | |
687 | ||
868fea05 TM |
688 | This driver also can be used for LAPIS Semiconductor IOH(Input/ |
689 | Output Hub), ML7223 and ML7831. | |
bc786cce | 690 | ML7223 IOH is for MP(Media Phone) use. |
868fea05 TM |
691 | ML7831 IOH is for general purpose use. |
692 | ML7223/ML7831 is companion chip for Intel Atom E6xx series. | |
693 | ML7223/ML7831 is completely compatible for Intel EG20T PCH. | |
bc786cce | 694 | |
49a36793 TM |
695 | config GPIO_ML_IOH |
696 | tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" | |
697 | depends on PCI | |
54be5663 | 698 | select GENERIC_IRQ_CHIP |
49a36793 TM |
699 | help |
700 | ML7213 is companion chip for Intel Atom E6xx series. | |
701 | This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output | |
702 | Hub) which is for IVI(In-Vehicle Infotainment) use. | |
703 | This driver can access the IOH's GPIO device. | |
704 | ||
b43ab901 SAS |
705 | config GPIO_SODAVILLE |
706 | bool "Intel Sodaville GPIO support" | |
3ffc9ceb | 707 | depends on X86 && PCI && OF |
b43ab901 SAS |
708 | select GPIO_GENERIC |
709 | select GENERIC_IRQ_CHIP | |
710 | help | |
711 | Say Y here to support Intel Sodaville GPIO. | |
712 | ||
35570ac6 RR |
713 | config GPIO_TIMBERDALE |
714 | bool "Support for timberdale GPIO IP" | |
6cff9e2b | 715 | depends on MFD_TIMBERDALE && HAS_IOMEM |
35570ac6 RR |
716 | ---help--- |
717 | Add support for the GPIO IP in the timberdale FPGA. | |
718 | ||
9956d02d FF |
719 | config GPIO_RDC321X |
720 | tristate "RDC R-321x GPIO support" | |
0244ad00 | 721 | depends on PCI |
e4be3cb7 | 722 | select MFD_CORE |
9956d02d FF |
723 | select MFD_RDC321X |
724 | help | |
725 | Support for the RDC R321x SoC GPIOs over southbridge | |
726 | PCI configuration space. | |
727 | ||
a9c5fff5 DB |
728 | comment "SPI GPIO expanders:" |
729 | ||
0c36ec31 JB |
730 | config GPIO_MAX7301 |
731 | tristate "Maxim MAX7301 GPIO expander" | |
732 | depends on SPI_MASTER | |
e952805d | 733 | select GPIO_MAX730X |
0c36ec31 | 734 | help |
e952805d | 735 | GPIO driver for Maxim MAX7301 SPI-based GPIO expander. |
0c36ec31 | 736 | |
e58b9e27 | 737 | config GPIO_MCP23S08 |
752ad5e8 | 738 | tristate "Microchip MCP23xxx I/O expander" |
8e509660 | 739 | depends on OF_GPIO |
0f119a84 | 740 | depends on (SPI_MASTER && !I2C) || I2C |
e58b9e27 | 741 | help |
752ad5e8 PK |
742 | SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017 |
743 | I/O expanders. | |
0b7bb77f | 744 | This provides a GPIO interface supporting inputs and outputs. |
4e47f91b | 745 | The I2C versions of the chips can be used as interrupt-controller. |
e58b9e27 | 746 | |
1e5db006 RR |
747 | config GPIO_MC33880 |
748 | tristate "Freescale MC33880 high-side/low-side switch" | |
749 | depends on SPI_MASTER | |
750 | help | |
751 | SPI driver for Freescale MC33880 high-side/low-side switch. | |
752 | This provides GPIO interface supporting inputs and outputs. | |
753 | ||
ead6db08 MG |
754 | config GPIO_74X164 |
755 | tristate "74x164 serial-in/parallel-out 8-bits shift register" | |
61e73804 | 756 | depends on SPI_MASTER && OF |
ead6db08 | 757 | help |
61e73804 AS |
758 | Driver for 74x164 compatible serial-in/parallel-out 8-outputs |
759 | shift registers. This driver can be used to provide access | |
ead6db08 MG |
760 | to more gpio outputs. |
761 | ||
4cf8e53b MV |
762 | comment "AC97 GPIO expanders:" |
763 | ||
764 | config GPIO_UCB1400 | |
7d1815e1 | 765 | tristate "Philips UCB1400 GPIO" |
4cf8e53b MV |
766 | depends on UCB1400_CORE |
767 | help | |
768 | This enables support for the Philips UCB1400 GPIO pins. | |
769 | The UCB1400 is an AC97 audio codec. | |
770 | ||
d22fcde0 GR |
771 | comment "LPC GPIO expanders:" |
772 | ||
773 | config GPIO_KEMPLD | |
774 | tristate "Kontron ETX / COMexpress GPIO" | |
775 | depends on MFD_KEMPLD | |
776 | help | |
777 | This enables support for the PLD GPIO interface on some Kontron ETX | |
778 | and COMexpress (ETXexpress) modules. | |
779 | ||
780 | This driver can also be built as a module. If so, the module will be | |
781 | called gpio-kempld. | |
782 | ||
800e69fb IS |
783 | comment "MODULbus GPIO expanders:" |
784 | ||
785 | config GPIO_JANZ_TTL | |
786 | tristate "Janz VMOD-TTL Digital IO Module" | |
787 | depends on MFD_JANZ_CMODIO | |
788 | help | |
789 | This enables support for the Janz VMOD-TTL Digital IO module. | |
790 | This driver provides support for driving the pins in output | |
791 | mode only. Input mode is not supported. | |
792 | ||
3d50a278 LD |
793 | config GPIO_PALMAS |
794 | bool "TI PALMAS series PMICs GPIO" | |
795 | depends on MFD_PALMAS | |
796 | help | |
797 | Select this option to enable GPIO driver for the TI PALMAS | |
798 | series chip family. | |
799 | ||
72bd9860 LD |
800 | config GPIO_TPS6586X |
801 | bool "TPS6586X GPIO" | |
802 | depends on MFD_TPS6586X | |
803 | help | |
804 | Select this option to enable GPIO driver for the TPS6586X | |
805 | chip family. | |
806 | ||
83545d83 JEC |
807 | config GPIO_TPS65910 |
808 | bool "TPS65910 GPIO" | |
809 | depends on MFD_TPS65910 | |
810 | help | |
811 | Select this option to enable GPIO driver for the TPS65910 | |
812 | chip family. | |
25cf2507 MN |
813 | |
814 | config GPIO_MSIC | |
815 | bool "Intel MSIC mixed signal gpio support" | |
816 | depends on MFD_INTEL_MSIC | |
817 | help | |
818 | Enable support for GPIO on intel MSIC controllers found in | |
819 | intel MID devices | |
820 | ||
757651e3 MM |
821 | config GPIO_BCM_KONA |
822 | bool "Broadcom Kona GPIO" | |
823 | depends on OF_GPIO | |
824 | help | |
825 | Turn on GPIO support for Broadcom "Kona" chips. | |
826 | ||
9d5b72de LP |
827 | comment "USB GPIO expanders:" |
828 | ||
829 | config GPIO_VIPERBOARD | |
830 | tristate "Viperboard GPIO a & b support" | |
831 | depends on MFD_VIPERBOARD && USB | |
832 | help | |
833 | Say yes here to access the GPIO signals of Nano River | |
834 | Technologies Viperboard. There are two GPIO chips on the | |
835 | board: gpioa and gpiob. | |
836 | See viperboard API specification and Nano | |
837 | River Tech's viperboard.h for detailed meaning | |
838 | of the module parameters. | |
839 | ||
7444a72e | 840 | endif |