Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
[deliverable/linux.git] / drivers / i2c / busses / Kconfig
1 #
2 # Sensor device configuration
3 #
4
5 menu "I2C Hardware Bus support"
6
7 comment "PC SMBus host controller drivers"
8 depends on PCI
9
10 config I2C_ALI1535
11 tristate "ALI 1535"
12 depends on PCI
13 help
14 If you say yes to this option, support will be included for the SMB
15 Host controller on Acer Labs Inc. (ALI) M1535 South Bridges. The SMB
16 controller is part of the 7101 device, which is an ACPI-compliant
17 Power Management Unit (PMU).
18
19 This driver can also be built as a module. If so, the module
20 will be called i2c-ali1535.
21
22 config I2C_ALI1563
23 tristate "ALI 1563"
24 depends on PCI && EXPERIMENTAL
25 help
26 If you say yes to this option, support will be included for the SMB
27 Host controller on Acer Labs Inc. (ALI) M1563 South Bridges. The SMB
28 controller is part of the 7101 device, which is an ACPI-compliant
29 Power Management Unit (PMU).
30
31 This driver can also be built as a module. If so, the module
32 will be called i2c-ali1563.
33
34 config I2C_ALI15X3
35 tristate "ALI 15x3"
36 depends on PCI
37 help
38 If you say yes to this option, support will be included for the
39 Acer Labs Inc. (ALI) M1514 and M1543 motherboard I2C interfaces.
40
41 This driver can also be built as a module. If so, the module
42 will be called i2c-ali15x3.
43
44 config I2C_AMD756
45 tristate "AMD 756/766/768/8111 and nVidia nForce"
46 depends on PCI
47 help
48 If you say yes to this option, support will be included for the AMD
49 756/766/768 mainboard I2C interfaces. The driver also includes
50 support for the first (SMBus 1.0) I2C interface of the AMD 8111 and
51 the nVidia nForce I2C interface.
52
53 This driver can also be built as a module. If so, the module
54 will be called i2c-amd756.
55
56 config I2C_AMD756_S4882
57 tristate "SMBus multiplexing on the Tyan S4882"
58 depends on I2C_AMD756 && X86 && EXPERIMENTAL
59 help
60 Enabling this option will add specific SMBus support for the Tyan
61 S4882 motherboard. On this 4-CPU board, the SMBus is multiplexed
62 over 8 different channels, where the various memory module EEPROMs
63 and temperature sensors live. Saying yes here will give you access
64 to these in addition to the trunk.
65
66 This driver can also be built as a module. If so, the module
67 will be called i2c-amd756-s4882.
68
69 config I2C_AMD8111
70 tristate "AMD 8111"
71 depends on PCI
72 help
73 If you say yes to this option, support will be included for the
74 second (SMBus 2.0) AMD 8111 mainboard I2C interface.
75
76 This driver can also be built as a module. If so, the module
77 will be called i2c-amd8111.
78
79 config I2C_I801
80 tristate "Intel 82801 (ICH)"
81 depends on PCI
82 help
83 If you say yes to this option, support will be included for the Intel
84 801 family of mainboard I2C interfaces. Specifically, the following
85 versions of the chipset are supported:
86 82801AA
87 82801AB
88 82801BA
89 82801CA/CAM
90 82801DB
91 82801EB/ER (ICH5/ICH5R)
92 6300ESB
93 ICH6
94 ICH7
95 ESB2
96 ICH8
97 ICH9
98 Tolapai
99 ICH10
100 PCH
101
102 This driver can also be built as a module. If so, the module
103 will be called i2c-i801.
104
105 config I2C_ISCH
106 tristate "Intel SCH SMBus 1.0"
107 depends on PCI
108 help
109 Say Y here if you want to use SMBus controller on the Intel SCH
110 based systems.
111
112 This driver can also be built as a module. If so, the module
113 will be called i2c-isch.
114
115 config I2C_PIIX4
116 tristate "Intel PIIX4 and compatible (ATI/Serverworks/Broadcom/SMSC)"
117 depends on PCI
118 help
119 If you say yes to this option, support will be included for the Intel
120 PIIX4 family of mainboard I2C interfaces. Specifically, the following
121 versions of the chipset are supported (note that Serverworks is part
122 of Broadcom):
123 Intel PIIX4
124 Intel 440MX
125 ATI IXP200
126 ATI IXP300
127 ATI IXP400
128 ATI SB600
129 ATI SB700
130 ATI SB800
131 Serverworks OSB4
132 Serverworks CSB5
133 Serverworks CSB6
134 Serverworks HT-1000
135 SMSC Victory66
136
137 This driver can also be built as a module. If so, the module
138 will be called i2c-piix4.
139
140 config I2C_NFORCE2
141 tristate "Nvidia nForce2, nForce3 and nForce4"
142 depends on PCI
143 help
144 If you say yes to this option, support will be included for the Nvidia
145 nForce2, nForce3 and nForce4 families of mainboard I2C interfaces.
146
147 This driver can also be built as a module. If so, the module
148 will be called i2c-nforce2.
149
150 config I2C_NFORCE2_S4985
151 tristate "SMBus multiplexing on the Tyan S4985"
152 depends on I2C_NFORCE2 && X86 && EXPERIMENTAL
153 help
154 Enabling this option will add specific SMBus support for the Tyan
155 S4985 motherboard. On this 4-CPU board, the SMBus is multiplexed
156 over 4 different channels, where the various memory module EEPROMs
157 live. Saying yes here will give you access to these in addition
158 to the trunk.
159
160 This driver can also be built as a module. If so, the module
161 will be called i2c-nforce2-s4985.
162
163 config I2C_SIS5595
164 tristate "SiS 5595"
165 depends on PCI
166 help
167 If you say yes to this option, support will be included for the
168 SiS5595 SMBus (a subset of I2C) interface.
169
170 This driver can also be built as a module. If so, the module
171 will be called i2c-sis5595.
172
173 config I2C_SIS630
174 tristate "SiS 630/730"
175 depends on PCI
176 help
177 If you say yes to this option, support will be included for the
178 SiS630 and SiS730 SMBus (a subset of I2C) interface.
179
180 This driver can also be built as a module. If so, the module
181 will be called i2c-sis630.
182
183 config I2C_SIS96X
184 tristate "SiS 96x"
185 depends on PCI
186 help
187 If you say yes to this option, support will be included for the SiS
188 96x SMBus (a subset of I2C) interfaces. Specifically, the following
189 chipsets are supported:
190 645/961
191 645DX/961
192 645DX/962
193 648/961
194 650/961
195 735
196 745
197
198 This driver can also be built as a module. If so, the module
199 will be called i2c-sis96x.
200
201 config I2C_VIA
202 tristate "VIA VT82C586B"
203 depends on PCI && EXPERIMENTAL
204 select I2C_ALGOBIT
205 help
206 If you say yes to this option, support will be included for the VIA
207 82C586B I2C interface
208
209 This driver can also be built as a module. If so, the module
210 will be called i2c-via.
211
212 config I2C_VIAPRO
213 tristate "VIA VT82C596/82C686/82xx and CX700/VX800/VX820"
214 depends on PCI
215 help
216 If you say yes to this option, support will be included for the VIA
217 VT82C596 and later SMBus interface. Specifically, the following
218 chipsets are supported:
219 VT82C596A/B
220 VT82C686A/B
221 VT8231
222 VT8233/A
223 VT8235
224 VT8237R/A/S
225 VT8251
226 CX700
227 VX800
228 VX820
229
230 This driver can also be built as a module. If so, the module
231 will be called i2c-viapro.
232
233 comment "Mac SMBus host controller drivers"
234 depends on PPC_CHRP || PPC_PMAC
235
236 config I2C_HYDRA
237 tristate "CHRP Apple Hydra Mac I/O I2C interface"
238 depends on PCI && PPC_CHRP && EXPERIMENTAL
239 select I2C_ALGOBIT
240 help
241 This supports the use of the I2C interface in the Apple Hydra Mac
242 I/O chip on some CHRP machines (e.g. the LongTrail). Say Y if you
243 have such a machine.
244
245 This support is also available as a module. If so, the module
246 will be called i2c-hydra.
247
248 config I2C_POWERMAC
249 tristate "Powermac I2C interface"
250 depends on PPC_PMAC
251 default y
252 help
253 This exposes the various PowerMac i2c interfaces to the linux i2c
254 layer and to userland. It is used by various drivers on the PowerMac
255 platform, and should generally be enabled.
256
257 This support is also available as a module. If so, the module
258 will be called i2c-powermac.
259
260 comment "I2C system bus drivers (mostly embedded / system-on-chip)"
261
262 config I2C_AT91
263 tristate "Atmel AT91 I2C Two-Wire interface (TWI)"
264 depends on ARCH_AT91 && EXPERIMENTAL && BROKEN
265 help
266 This supports the use of the I2C interface on Atmel AT91
267 processors.
268
269 This driver is BROKEN because the controller which it uses
270 will easily trigger RX overrun and TX underrun errors. Using
271 low I2C clock rates may partially work around those issues
272 on some systems. Another serious problem is that there is no
273 documented way to issue repeated START conditions, as needed
274 to support combined I2C messages. Use the i2c-gpio driver
275 unless your system can cope with those limitations.
276
277 config I2C_AU1550
278 tristate "Au1550/Au1200 SMBus interface"
279 depends on SOC_AU1550 || SOC_AU1200
280 help
281 If you say yes to this option, support will be included for the
282 Au1550 and Au1200 SMBus interface.
283
284 This driver can also be built as a module. If so, the module
285 will be called i2c-au1550.
286
287 config I2C_BLACKFIN_TWI
288 tristate "Blackfin TWI I2C support"
289 depends on BLACKFIN
290 depends on !BF561 && !BF531 && !BF532 && !BF533
291 help
292 This is the I2C bus driver for Blackfin on-chip TWI interface.
293
294 This driver can also be built as a module. If so, the module
295 will be called i2c-bfin-twi.
296
297 config I2C_BLACKFIN_TWI_CLK_KHZ
298 int "Blackfin TWI I2C clock (kHz)"
299 depends on I2C_BLACKFIN_TWI
300 range 10 400
301 default 50
302 help
303 The unit of the TWI clock is kHz.
304
305 config I2C_CPM
306 tristate "Freescale CPM1 or CPM2 (MPC8xx/826x)"
307 depends on (CPM1 || CPM2) && OF_I2C
308 help
309 This supports the use of the I2C interface on Freescale
310 processors with CPM1 or CPM2.
311
312 This driver can also be built as a module. If so, the module
313 will be called i2c-cpm.
314
315 config I2C_DAVINCI
316 tristate "DaVinci I2C driver"
317 depends on ARCH_DAVINCI
318 help
319 Support for TI DaVinci I2C controller driver.
320
321 This driver can also be built as a module. If so, the module
322 will be called i2c-davinci.
323
324 Please note that this driver might be needed to bring up other
325 devices such as DaVinci NIC.
326 For details please see http://www.ti.com/davinci
327
328 config I2C_GPIO
329 tristate "GPIO-based bitbanging I2C"
330 depends on GENERIC_GPIO
331 select I2C_ALGOBIT
332 help
333 This is a very simple bitbanging I2C driver utilizing the
334 arch-neutral GPIO API to control the SCL and SDA lines.
335
336 config I2C_HIGHLANDER
337 tristate "Highlander FPGA SMBus interface"
338 depends on SH_HIGHLANDER
339 help
340 If you say yes to this option, support will be included for
341 the SMBus interface located in the FPGA on various Highlander
342 boards, particularly the R0P7780LC0011RL and R0P7785LC0011RL
343 FPGAs. This is wholly unrelated to the SoC I2C.
344
345 This driver can also be built as a module. If so, the module
346 will be called i2c-highlander.
347
348 config I2C_IBM_IIC
349 tristate "IBM PPC 4xx on-chip I2C interface"
350 depends on 4xx
351 help
352 Say Y here if you want to use IIC peripheral found on
353 embedded IBM PPC 4xx based systems.
354
355 This driver can also be built as a module. If so, the module
356 will be called i2c-ibm_iic.
357
358 config I2C_IOP3XX
359 tristate "Intel IOPx3xx and IXP4xx on-chip I2C interface"
360 depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IXP4XX || ARCH_IOP13XX
361 help
362 Say Y here if you want to use the IIC bus controller on
363 the Intel IOPx3xx I/O Processors or IXP4xx Network Processors.
364
365 This driver can also be built as a module. If so, the module
366 will be called i2c-iop3xx.
367
368 config I2C_IXP2000
369 tristate "IXP2000 GPIO-Based I2C Interface (DEPRECATED)"
370 depends on ARCH_IXP2000
371 select I2C_ALGOBIT
372 help
373 Say Y here if you have an Intel IXP2000 (2400, 2800, 2850) based
374 system and are using GPIO lines for an I2C bus.
375
376 This support is also available as a module. If so, the module
377 will be called i2c-ixp2000.
378
379 This driver is deprecated and will be dropped soon. Use i2c-gpio
380 instead.
381
382 config I2C_MPC
383 tristate "MPC107/824x/85xx/52xx/86xx"
384 depends on PPC32
385 help
386 If you say yes to this option, support will be included for the
387 built-in I2C interface on the MPC107/Tsi107/MPC8240/MPC8245 and
388 MPC85xx/MPC8641 family processors. The driver may also work on 52xx
389 family processors, though interrupts are known not to work.
390
391 This driver can also be built as a module. If so, the module
392 will be called i2c-mpc.
393
394 config I2C_MV64XXX
395 tristate "Marvell mv64xxx I2C Controller"
396 depends on (MV64X60 || PLAT_ORION) && EXPERIMENTAL
397 help
398 If you say yes to this option, support will be included for the
399 built-in I2C interface on the Marvell 64xxx line of host bridges.
400
401 This driver can also be built as a module. If so, the module
402 will be called i2c-mv64xxx.
403
404 config I2C_OCORES
405 tristate "OpenCores I2C Controller"
406 depends on EXPERIMENTAL
407 help
408 If you say yes to this option, support will be included for the
409 OpenCores I2C controller. For details see
410 http://www.opencores.org/projects.cgi/web/i2c/overview
411
412 This driver can also be built as a module. If so, the module
413 will be called i2c-ocores.
414
415 config I2C_OMAP
416 tristate "OMAP I2C adapter"
417 depends on ARCH_OMAP
418 default y if MACH_OMAP_H3 || MACH_OMAP_OSK
419 help
420 If you say yes to this option, support will be included for the
421 I2C interface on the Texas Instruments OMAP1/2 family of processors.
422 Like OMAP1510/1610/1710/5912 and OMAP242x.
423 For details see http://www.ti.com/omap.
424
425 config I2C_PASEMI
426 tristate "PA Semi SMBus interface"
427 depends on PPC_PASEMI && PCI
428 help
429 Supports the PA Semi PWRficient on-chip SMBus interfaces.
430
431 config I2C_PNX
432 tristate "I2C bus support for Philips PNX targets"
433 depends on ARCH_PNX4008
434 help
435 This driver supports the Philips IP3204 I2C IP block master and/or
436 slave controller
437
438 This driver can also be built as a module. If so, the module
439 will be called i2c-pnx.
440
441 config I2C_PXA
442 tristate "Intel PXA2XX I2C adapter (EXPERIMENTAL)"
443 depends on EXPERIMENTAL && ARCH_PXA
444 help
445 If you have devices in the PXA I2C bus, say yes to this option.
446 This driver can also be built as a module. If so, the module
447 will be called i2c-pxa.
448
449 config I2C_PXA_SLAVE
450 bool "Intel PXA2XX I2C Slave comms support"
451 depends on I2C_PXA
452 help
453 Support I2C slave mode communications on the PXA I2C bus. This
454 is necessary for systems where the PXA may be a target on the
455 I2C bus.
456
457 config I2C_S3C2410
458 tristate "S3C2410 I2C Driver"
459 depends on ARCH_S3C2410
460 help
461 Say Y here to include support for I2C controller in the
462 Samsung S3C2410 based System-on-Chip devices.
463
464 config I2C_SH7760
465 tristate "Renesas SH7760 I2C Controller"
466 depends on CPU_SUBTYPE_SH7760
467 help
468 This driver supports the 2 I2C interfaces on the Renesas SH7760.
469
470 This driver can also be built as a module. If so, the module
471 will be called i2c-sh7760.
472
473 config I2C_SH_MOBILE
474 tristate "SuperH Mobile I2C Controller"
475 depends on SUPERH
476 help
477 If you say yes to this option, support will be included for the
478 built-in I2C interface on the Renesas SH-Mobile processor.
479
480 This driver can also be built as a module. If so, the module
481 will be called i2c-sh_mobile.
482
483 config I2C_SIMTEC
484 tristate "Simtec Generic I2C interface"
485 select I2C_ALGOBIT
486 help
487 If you say yes to this option, support will be included for
488 the Simtec Generic I2C interface. This driver is for the
489 simple I2C bus used on newer Simtec products for general
490 I2C, such as DDC on the Simtec BBD2016A.
491
492 This driver can also be built as a module. If so, the module
493 will be called i2c-simtec.
494
495 config I2C_VERSATILE
496 tristate "ARM Versatile/Realview I2C bus support"
497 depends on ARCH_VERSATILE || ARCH_REALVIEW
498 select I2C_ALGOBIT
499 help
500 Say yes if you want to support the I2C serial bus on ARMs Versatile
501 range of platforms.
502
503 This driver can also be built as a module. If so, the module
504 will be called i2c-versatile.
505
506 comment "External I2C/SMBus adapter drivers"
507
508 config I2C_PARPORT
509 tristate "Parallel port adapter"
510 depends on PARPORT
511 select I2C_ALGOBIT
512 help
513 This supports parallel port I2C adapters such as the ones made by
514 Philips or Velleman, Analog Devices evaluation boards, and more.
515 Basically any adapter using the parallel port as an I2C bus with
516 no extra chipset is supported by this driver, or could be.
517
518 This driver is a replacement for (and was inspired by) an older
519 driver named i2c-philips-par. The new driver supports more devices,
520 and makes it easier to add support for new devices.
521
522 An adapter type parameter is now mandatory. Please read the file
523 Documentation/i2c/busses/i2c-parport for details.
524
525 Another driver exists, named i2c-parport-light, which doesn't depend
526 on the parport driver. This is meant for embedded systems. Don't say
527 Y here if you intend to say Y or M there.
528
529 This support is also available as a module. If so, the module
530 will be called i2c-parport.
531
532 config I2C_PARPORT_LIGHT
533 tristate "Parallel port adapter (light)"
534 select I2C_ALGOBIT
535 help
536 This supports parallel port I2C adapters such as the ones made by
537 Philips or Velleman, Analog Devices evaluation boards, and more.
538 Basically any adapter using the parallel port as an I2C bus with
539 no extra chipset is supported by this driver, or could be.
540
541 This driver is a light version of i2c-parport. It doesn't depend
542 on the parport driver, and uses direct I/O access instead. This
543 might be preferred on embedded systems where wasting memory for
544 the clean but heavy parport handling is not an option. The
545 drawback is a reduced portability and the impossibility to
546 daisy-chain other parallel port devices.
547
548 Don't say Y here if you said Y or M to i2c-parport. Saying M to
549 both is possible but both modules should not be loaded at the same
550 time.
551
552 This support is also available as a module. If so, the module
553 will be called i2c-parport-light.
554
555 config I2C_TAOS_EVM
556 tristate "TAOS evaluation module"
557 depends on EXPERIMENTAL
558 select SERIO
559 select SERIO_SERPORT
560 default n
561 help
562 This supports TAOS evaluation modules on serial port. In order to
563 use this driver, you will need the inputattach tool, which is part
564 of the input-utils package.
565
566 If unsure, say N.
567
568 This support is also available as a module. If so, the module
569 will be called i2c-taos-evm.
570
571 config I2C_TINY_USB
572 tristate "Tiny-USB adapter"
573 depends on USB
574 help
575 If you say yes to this option, support will be included for the
576 i2c-tiny-usb, a simple do-it-yourself USB to I2C interface. See
577 http://www.harbaum.org/till/i2c_tiny_usb for hardware details.
578
579 This driver can also be built as a module. If so, the module
580 will be called i2c-tiny-usb.
581
582 comment "Graphics adapter I2C/DDC channel drivers"
583 depends on PCI
584
585 config I2C_VOODOO3
586 tristate "Voodoo 3"
587 depends on PCI
588 select I2C_ALGOBIT
589 help
590 If you say yes to this option, support will be included for the
591 Voodoo 3 I2C interface.
592
593 This driver can also be built as a module. If so, the module
594 will be called i2c-voodoo3.
595
596 comment "Other I2C/SMBus bus drivers"
597
598 config I2C_ACORN
599 tristate "Acorn IOC/IOMD I2C bus support"
600 depends on ARCH_ACORN
601 default y
602 select I2C_ALGOBIT
603 help
604 Say yes if you want to support the I2C bus on Acorn platforms.
605
606 If you don't know, say Y.
607
608 config I2C_ELEKTOR
609 tristate "Elektor ISA card"
610 depends on ISA && BROKEN_ON_SMP
611 select I2C_ALGOPCF
612 help
613 This supports the PCF8584 ISA bus I2C adapter. Say Y if you own
614 such an adapter.
615
616 This support is also available as a module. If so, the module
617 will be called i2c-elektor.
618
619 config I2C_PCA_ISA
620 tristate "PCA9564 on an ISA bus"
621 depends on ISA
622 select I2C_ALGOPCA
623 default n
624 help
625 This driver supports ISA boards using the Philips PCA9564
626 parallel bus to I2C bus controller.
627
628 This driver can also be built as a module. If so, the module
629 will be called i2c-pca-isa.
630
631 This device is almost undetectable and using this driver on a
632 system which doesn't have this device will result in long
633 delays when I2C/SMBus chip drivers are loaded (e.g. at boot
634 time). If unsure, say N.
635
636 config I2C_PCA_PLATFORM
637 tristate "PCA9564 as platform device"
638 select I2C_ALGOPCA
639 default n
640 help
641 This driver supports a memory mapped Philips PCA9564
642 parallel bus to I2C bus controller.
643
644 This driver can also be built as a module. If so, the module
645 will be called i2c-pca-platform.
646
647 config I2C_PMCMSP
648 tristate "PMC MSP I2C TWI Controller"
649 depends on PMC_MSP
650 help
651 This driver supports the PMC TWI controller on MSP devices.
652
653 This driver can also be built as module. If so, the module
654 will be called i2c-pmcmsp.
655
656 config I2C_SIBYTE
657 tristate "SiByte SMBus interface"
658 depends on SIBYTE_SB1xxx_SOC
659 help
660 Supports the SiByte SOC on-chip I2C interfaces (2 channels).
661
662 config I2C_STUB
663 tristate "I2C/SMBus Test Stub"
664 depends on EXPERIMENTAL && m
665 default 'n'
666 help
667 This module may be useful to developers of SMBus client drivers,
668 especially for certain kinds of sensor chips.
669
670 If you do build this module, be sure to read the notes and warnings
671 in <file:Documentation/i2c/i2c-stub>.
672
673 If you don't know what to do here, definitely say N.
674
675 config SCx200_I2C
676 tristate "NatSemi SCx200 I2C using GPIO pins (DEPRECATED)"
677 depends on SCx200_GPIO
678 select I2C_ALGOBIT
679 help
680 Enable the use of two GPIO pins of a SCx200 processor as an I2C bus.
681
682 If you don't know what to do here, say N.
683
684 This support is also available as a module. If so, the module
685 will be called scx200_i2c.
686
687 This driver is deprecated and will be dropped soon. Use i2c-gpio
688 (or scx200_acb) instead.
689
690 config SCx200_I2C_SCL
691 int "GPIO pin used for SCL"
692 depends on SCx200_I2C
693 default "12"
694 help
695 Enter the GPIO pin number used for the SCL signal. This value can
696 also be specified with a module parameter.
697
698 config SCx200_I2C_SDA
699 int "GPIO pin used for SDA"
700 depends on SCx200_I2C
701 default "13"
702 help
703 Enter the GPIO pin number used for the SSA signal. This value can
704 also be specified with a module parameter.
705
706 config SCx200_ACB
707 tristate "Geode ACCESS.bus support"
708 depends on X86_32 && PCI
709 help
710 Enable the use of the ACCESS.bus controllers on the Geode SCx200 and
711 SC1100 processors and the CS5535 and CS5536 Geode companion devices.
712
713 If you don't know what to do here, say N.
714
715 This support is also available as a module. If so, the module
716 will be called scx200_acb.
717
718 endmenu
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