selinux: fix overflow and 0 length allocations
[deliverable/linux.git] / drivers / i2c / busses / Kconfig
1 #
2 # Sensor device configuration
3 #
4
5 menu "I2C Hardware Bus support"
6 depends on HAS_IOMEM
7
8 comment "PC SMBus host controller drivers"
9 depends on PCI
10
11 config I2C_ALI1535
12 tristate "ALI 1535"
13 depends on PCI
14 help
15 If you say yes to this option, support will be included for the SMB
16 Host controller on Acer Labs Inc. (ALI) M1535 South Bridges. The SMB
17 controller is part of the 7101 device, which is an ACPI-compliant
18 Power Management Unit (PMU).
19
20 This driver can also be built as a module. If so, the module
21 will be called i2c-ali1535.
22
23 config I2C_ALI1563
24 tristate "ALI 1563"
25 depends on PCI
26 help
27 If you say yes to this option, support will be included for the SMB
28 Host controller on Acer Labs Inc. (ALI) M1563 South Bridges. The SMB
29 controller is part of the 7101 device, which is an ACPI-compliant
30 Power Management Unit (PMU).
31
32 This driver can also be built as a module. If so, the module
33 will be called i2c-ali1563.
34
35 config I2C_ALI15X3
36 tristate "ALI 15x3"
37 depends on PCI
38 help
39 If you say yes to this option, support will be included for the
40 Acer Labs Inc. (ALI) M1514 and M1543 motherboard I2C interfaces.
41
42 This driver can also be built as a module. If so, the module
43 will be called i2c-ali15x3.
44
45 config I2C_AMD756
46 tristate "AMD 756/766/768/8111 and nVidia nForce"
47 depends on PCI
48 help
49 If you say yes to this option, support will be included for the AMD
50 756/766/768 mainboard I2C interfaces. The driver also includes
51 support for the first (SMBus 1.0) I2C interface of the AMD 8111 and
52 the nVidia nForce I2C interface.
53
54 This driver can also be built as a module. If so, the module
55 will be called i2c-amd756.
56
57 config I2C_AMD756_S4882
58 tristate "SMBus multiplexing on the Tyan S4882"
59 depends on I2C_AMD756 && X86
60 help
61 Enabling this option will add specific SMBus support for the Tyan
62 S4882 motherboard. On this 4-CPU board, the SMBus is multiplexed
63 over 8 different channels, where the various memory module EEPROMs
64 and temperature sensors live. Saying yes here will give you access
65 to these in addition to the trunk.
66
67 This driver can also be built as a module. If so, the module
68 will be called i2c-amd756-s4882.
69
70 config I2C_AMD8111
71 tristate "AMD 8111"
72 depends on PCI
73 help
74 If you say yes to this option, support will be included for the
75 second (SMBus 2.0) AMD 8111 mainboard I2C interface.
76
77 This driver can also be built as a module. If so, the module
78 will be called i2c-amd8111.
79
80 config I2C_HIX5HD2
81 tristate "Hix5hd2 high-speed I2C driver"
82 depends on ARCH_HIX5HD2 || COMPILE_TEST
83 help
84 Say Y here to include support for high-speed I2C controller in the
85 Hisilicon based hix5hd2 SoCs.
86
87 This driver can also be built as a module. If so, the module
88 will be called i2c-hix5hd2.
89
90 config I2C_I801
91 tristate "Intel 82801 (ICH/PCH)"
92 depends on PCI
93 select CHECK_SIGNATURE if X86 && DMI
94 select I2C_SMBUS
95 help
96 If you say yes to this option, support will be included for the Intel
97 801 family of mainboard I2C interfaces. Specifically, the following
98 versions of the chipset are supported:
99 82801AA
100 82801AB
101 82801BA
102 82801CA/CAM
103 82801DB
104 82801EB/ER (ICH5/ICH5R)
105 6300ESB
106 ICH6
107 ICH7
108 ESB2
109 ICH8
110 ICH9
111 EP80579 (Tolapai)
112 ICH10
113 5/3400 Series (PCH)
114 6 Series (PCH)
115 Patsburg (PCH)
116 DH89xxCC (PCH)
117 Panther Point (PCH)
118 Lynx Point (PCH)
119 Lynx Point-LP (PCH)
120 Avoton (SOC)
121 Wellsburg (PCH)
122 Coleto Creek (PCH)
123 Wildcat Point (PCH)
124 Wildcat Point-LP (PCH)
125 BayTrail (SOC)
126 Sunrise Point-H (PCH)
127 Sunrise Point-LP (PCH)
128 DNV (SOC)
129 Broxton (SOC)
130 Lewisburg (PCH)
131
132 This driver can also be built as a module. If so, the module
133 will be called i2c-i801.
134
135 config I2C_ISCH
136 tristate "Intel SCH SMBus 1.0"
137 depends on PCI
138 select LPC_SCH
139 help
140 Say Y here if you want to use SMBus controller on the Intel SCH
141 based systems.
142
143 This driver can also be built as a module. If so, the module
144 will be called i2c-isch.
145
146 config I2C_ISMT
147 tristate "Intel iSMT SMBus Controller"
148 depends on PCI && X86
149 help
150 If you say yes to this option, support will be included for the Intel
151 iSMT SMBus host controller interface.
152
153 This driver can also be built as a module. If so, the module will be
154 called i2c-ismt.
155
156 config I2C_PIIX4
157 tristate "Intel PIIX4 and compatible (ATI/AMD/Serverworks/Broadcom/SMSC)"
158 depends on PCI
159 help
160 If you say yes to this option, support will be included for the Intel
161 PIIX4 family of mainboard I2C interfaces. Specifically, the following
162 versions of the chipset are supported (note that Serverworks is part
163 of Broadcom):
164 Intel PIIX4
165 Intel 440MX
166 ATI IXP200
167 ATI IXP300
168 ATI IXP400
169 ATI SB600
170 ATI SB700/SP5100
171 ATI SB800
172 AMD Hudson-2
173 AMD ML
174 AMD CZ
175 Serverworks OSB4
176 Serverworks CSB5
177 Serverworks CSB6
178 Serverworks HT-1000
179 Serverworks HT-1100
180 SMSC Victory66
181
182 Some AMD chipsets contain two PIIX4-compatible SMBus
183 controllers. This driver will attempt to use both controllers
184 on the SB700/SP5100, if they have been initialized by the BIOS.
185
186 This driver can also be built as a module. If so, the module
187 will be called i2c-piix4.
188
189 config I2C_NFORCE2
190 tristate "Nvidia nForce2, nForce3 and nForce4"
191 depends on PCI
192 help
193 If you say yes to this option, support will be included for the Nvidia
194 nForce2, nForce3 and nForce4 families of mainboard I2C interfaces.
195
196 This driver can also be built as a module. If so, the module
197 will be called i2c-nforce2.
198
199 config I2C_NFORCE2_S4985
200 tristate "SMBus multiplexing on the Tyan S4985"
201 depends on I2C_NFORCE2 && X86
202 help
203 Enabling this option will add specific SMBus support for the Tyan
204 S4985 motherboard. On this 4-CPU board, the SMBus is multiplexed
205 over 4 different channels, where the various memory module EEPROMs
206 live. Saying yes here will give you access to these in addition
207 to the trunk.
208
209 This driver can also be built as a module. If so, the module
210 will be called i2c-nforce2-s4985.
211
212 config I2C_SIS5595
213 tristate "SiS 5595"
214 depends on PCI
215 help
216 If you say yes to this option, support will be included for the
217 SiS5595 SMBus (a subset of I2C) interface.
218
219 This driver can also be built as a module. If so, the module
220 will be called i2c-sis5595.
221
222 config I2C_SIS630
223 tristate "SiS 630/730/964"
224 depends on PCI
225 help
226 If you say yes to this option, support will be included for the
227 SiS630, SiS730 and SiS964 SMBus (a subset of I2C) interface.
228
229 This driver can also be built as a module. If so, the module
230 will be called i2c-sis630.
231
232 config I2C_SIS96X
233 tristate "SiS 96x"
234 depends on PCI
235 help
236 If you say yes to this option, support will be included for the SiS
237 96x SMBus (a subset of I2C) interfaces. Specifically, the following
238 chipsets are supported:
239 645/961
240 645DX/961
241 645DX/962
242 648/961
243 650/961
244 735
245 745
246
247 This driver can also be built as a module. If so, the module
248 will be called i2c-sis96x.
249
250 config I2C_VIA
251 tristate "VIA VT82C586B"
252 depends on PCI
253 select I2C_ALGOBIT
254 help
255 If you say yes to this option, support will be included for the VIA
256 82C586B I2C interface
257
258 This driver can also be built as a module. If so, the module
259 will be called i2c-via.
260
261 config I2C_VIAPRO
262 tristate "VIA VT82C596/82C686/82xx and CX700/VX8xx/VX900"
263 depends on PCI
264 help
265 If you say yes to this option, support will be included for the VIA
266 VT82C596 and later SMBus interface. Specifically, the following
267 chipsets are supported:
268 VT82C596A/B
269 VT82C686A/B
270 VT8231
271 VT8233/A
272 VT8235
273 VT8237R/A/S
274 VT8251
275 CX700
276 VX800/VX820
277 VX855/VX875
278 VX900
279
280 This driver can also be built as a module. If so, the module
281 will be called i2c-viapro.
282
283 if ACPI
284
285 comment "ACPI drivers"
286
287 config I2C_SCMI
288 tristate "SMBus Control Method Interface"
289 help
290 This driver supports the SMBus Control Method Interface. It needs the
291 BIOS to declare ACPI control methods as described in the SMBus Control
292 Method Interface specification.
293
294 To compile this driver as a module, choose M here:
295 the module will be called i2c-scmi.
296
297 endif # ACPI
298
299 comment "Mac SMBus host controller drivers"
300 depends on PPC_CHRP || PPC_PMAC
301
302 config I2C_HYDRA
303 tristate "CHRP Apple Hydra Mac I/O I2C interface"
304 depends on PCI && PPC_CHRP
305 select I2C_ALGOBIT
306 help
307 This supports the use of the I2C interface in the Apple Hydra Mac
308 I/O chip on some CHRP machines (e.g. the LongTrail). Say Y if you
309 have such a machine.
310
311 This support is also available as a module. If so, the module
312 will be called i2c-hydra.
313
314 config I2C_POWERMAC
315 tristate "Powermac I2C interface"
316 depends on PPC_PMAC
317 default y
318 help
319 This exposes the various PowerMac i2c interfaces to the linux i2c
320 layer and to userland. It is used by various drivers on the PowerMac
321 platform, and should generally be enabled.
322
323 This support is also available as a module. If so, the module
324 will be called i2c-powermac.
325
326 comment "I2C system bus drivers (mostly embedded / system-on-chip)"
327
328 config I2C_AT91
329 tristate "Atmel AT91 I2C Two-Wire interface (TWI)"
330 depends on ARCH_AT91
331 help
332 This supports the use of the I2C interface on Atmel AT91
333 processors.
334
335 A serious problem is that there is no documented way to issue
336 repeated START conditions for more than two messages, as needed
337 to support combined I2C messages. Use the i2c-gpio driver
338 unless your system can cope with this limitation.
339
340 Caution! at91rm9200, at91sam9261, at91sam9260, at91sam9263 devices
341 don't have clock stretching in transmission mode. For that reason,
342 you can encounter underrun issues causing premature stop sendings if
343 the latency to fill the transmission register is too long. If you
344 are facing this situation, use the i2c-gpio driver.
345
346 config I2C_AU1550
347 tristate "Au1550/Au1200/Au1300 SMBus interface"
348 depends on MIPS_ALCHEMY
349 help
350 If you say yes to this option, support will be included for the
351 Au1550/Au1200/Au1300 SMBus interface.
352
353 This driver can also be built as a module. If so, the module
354 will be called i2c-au1550.
355
356 config I2C_AXXIA
357 tristate "Axxia I2C controller"
358 depends on ARCH_AXXIA || COMPILE_TEST
359 default ARCH_AXXIA
360 help
361 Say yes if you want to support the I2C bus on Axxia platforms.
362
363 Please note that this controller is limited to transfers of maximum
364 255 bytes in length. Any attempt to to a larger transfer will return
365 an error.
366
367 config I2C_BCM2835
368 tristate "Broadcom BCM2835 I2C controller"
369 depends on ARCH_BCM2835
370 help
371 If you say yes to this option, support will be included for the
372 BCM2835 I2C controller.
373
374 If you don't know what to do here, say N.
375
376 This support is also available as a module. If so, the module
377 will be called i2c-bcm2835.
378
379 config I2C_BCM_IPROC
380 tristate "Broadcom iProc I2C controller"
381 depends on ARCH_BCM_IPROC || COMPILE_TEST
382 default ARCH_BCM_IPROC
383 help
384 If you say yes to this option, support will be included for the
385 Broadcom iProc I2C controller.
386
387 If you don't know what to do here, say N.
388
389 config I2C_BCM_KONA
390 tristate "BCM Kona I2C adapter"
391 depends on ARCH_BCM_MOBILE
392 default y
393 help
394 If you say yes to this option, support will be included for the
395 I2C interface on the Broadcom Kona family of processors.
396
397 If you do not need KONA I2C interface, say N.
398
399 config I2C_BRCMSTB
400 tristate "BRCM Settop I2C controller"
401 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
402 default y
403 help
404 If you say yes to this option, support will be included for the
405 I2C interface on the Broadcom Settop SoCs.
406
407 If you do not need I2C interface, say N.
408
409 config I2C_BLACKFIN_TWI
410 tristate "Blackfin TWI I2C support"
411 depends on BLACKFIN
412 depends on !BF561 && !BF531 && !BF532 && !BF533
413 help
414 This is the I2C bus driver for Blackfin on-chip TWI interface.
415
416 This driver can also be built as a module. If so, the module
417 will be called i2c-bfin-twi.
418
419 config I2C_BLACKFIN_TWI_CLK_KHZ
420 int "Blackfin TWI I2C clock (kHz)"
421 depends on I2C_BLACKFIN_TWI
422 range 21 400
423 default 50
424 help
425 The unit of the TWI clock is kHz.
426
427 config I2C_CADENCE
428 tristate "Cadence I2C Controller"
429 depends on ARCH_ZYNQ || ARM64
430 help
431 Say yes here to select Cadence I2C Host Controller. This controller is
432 e.g. used by Xilinx Zynq.
433
434 config I2C_CBUS_GPIO
435 tristate "CBUS I2C driver"
436 depends on GPIOLIB || COMPILE_TEST
437 help
438 Support for CBUS access using I2C API. Mostly relevant for Nokia
439 Internet Tablets (770, N800 and N810).
440
441 This driver can also be built as a module. If so, the module
442 will be called i2c-cbus-gpio.
443
444 config I2C_CPM
445 tristate "Freescale CPM1 or CPM2 (MPC8xx/826x)"
446 depends on CPM1 || CPM2
447 help
448 This supports the use of the I2C interface on Freescale
449 processors with CPM1 or CPM2.
450
451 This driver can also be built as a module. If so, the module
452 will be called i2c-cpm.
453
454 config I2C_DAVINCI
455 tristate "DaVinci I2C driver"
456 depends on ARCH_DAVINCI || ARCH_KEYSTONE
457 help
458 Support for TI DaVinci I2C controller driver.
459
460 This driver can also be built as a module. If so, the module
461 will be called i2c-davinci.
462
463 Please note that this driver might be needed to bring up other
464 devices such as DaVinci NIC.
465 For details please see http://www.ti.com/davinci
466
467 config I2C_DESIGNWARE_CORE
468 tristate
469
470 config I2C_DESIGNWARE_PLATFORM
471 tristate "Synopsys DesignWare Platform"
472 select I2C_DESIGNWARE_CORE
473 depends on (ACPI && COMMON_CLK) || !ACPI
474 help
475 If you say yes to this option, support will be included for the
476 Synopsys DesignWare I2C adapter. Only master mode is supported.
477
478 This driver can also be built as a module. If so, the module
479 will be called i2c-designware-platform.
480
481 config I2C_DESIGNWARE_PCI
482 tristate "Synopsys DesignWare PCI"
483 depends on PCI
484 select I2C_DESIGNWARE_CORE
485 help
486 If you say yes to this option, support will be included for the
487 Synopsys DesignWare I2C adapter. Only master mode is supported.
488
489 This driver can also be built as a module. If so, the module
490 will be called i2c-designware-pci.
491
492 config I2C_DESIGNWARE_BAYTRAIL
493 bool "Intel Baytrail I2C semaphore support"
494 depends on ACPI
495 depends on (I2C_DESIGNWARE_PLATFORM=m && IOSF_MBI) || \
496 (I2C_DESIGNWARE_PLATFORM=y && IOSF_MBI=y)
497 help
498 This driver enables managed host access to the PMIC I2C bus on select
499 Intel BayTrail platforms using the X-Powers AXP288 PMIC. It allows
500 the host to request uninterrupted access to the PMIC's I2C bus from
501 the platform firmware controlling it. You should say Y if running on
502 a BayTrail system using the AXP288.
503
504 config I2C_DIGICOLOR
505 tristate "Conexant Digicolor I2C driver"
506 depends on ARCH_DIGICOLOR
507 help
508 Support for Conexant Digicolor SoCs (CX92755) I2C controller driver.
509
510 This driver can also be built as a module. If so, the module
511 will be called i2c-digicolor.
512
513 config I2C_EFM32
514 tristate "EFM32 I2C controller"
515 depends on ARCH_EFM32 || COMPILE_TEST
516 help
517 This driver supports the i2c block found in Energy Micro's EFM32
518 SoCs.
519
520 config I2C_EG20T
521 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) I2C"
522 depends on PCI && (X86_32 || MIPS || COMPILE_TEST)
523 help
524 This driver is for PCH(Platform controller Hub) I2C of EG20T which
525 is an IOH(Input/Output Hub) for x86 embedded processor.
526 This driver can access PCH I2C bus device.
527
528 This driver also can be used for LAPIS Semiconductor IOH(Input/
529 Output Hub), ML7213, ML7223 and ML7831.
530 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
531 for MP(Media Phone) use and ML7831 IOH is for general purpose use.
532 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
533 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
534
535 config I2C_EMEV2
536 tristate "EMMA Mobile series I2C adapter"
537 depends on HAVE_CLK
538 select I2C_SLAVE
539 help
540 If you say yes to this option, support will be included for the
541 I2C interface on the Renesas Electronics EM/EV family of processors.
542
543 config I2C_EXYNOS5
544 tristate "Exynos5 high-speed I2C driver"
545 depends on ARCH_EXYNOS && OF
546 default y
547 help
548 High-speed I2C controller on Exynos5 based Samsung SoCs.
549
550 config I2C_GPIO
551 tristate "GPIO-based bitbanging I2C"
552 depends on GPIOLIB || COMPILE_TEST
553 select I2C_ALGOBIT
554 help
555 This is a very simple bitbanging I2C driver utilizing the
556 arch-neutral GPIO API to control the SCL and SDA lines.
557
558 config I2C_HIGHLANDER
559 tristate "Highlander FPGA SMBus interface"
560 depends on SH_HIGHLANDER
561 help
562 If you say yes to this option, support will be included for
563 the SMBus interface located in the FPGA on various Highlander
564 boards, particularly the R0P7780LC0011RL and R0P7785LC0011RL
565 FPGAs. This is wholly unrelated to the SoC I2C.
566
567 This driver can also be built as a module. If so, the module
568 will be called i2c-highlander.
569
570 config I2C_IBM_IIC
571 tristate "IBM PPC 4xx on-chip I2C interface"
572 depends on 4xx
573 help
574 Say Y here if you want to use IIC peripheral found on
575 embedded IBM PPC 4xx based systems.
576
577 This driver can also be built as a module. If so, the module
578 will be called i2c-ibm_iic.
579
580 config I2C_IMG
581 tristate "Imagination Technologies I2C SCB Controller"
582 depends on MIPS || METAG || COMPILE_TEST
583 help
584 Say Y here if you want to use the IMG I2C SCB controller,
585 available on the TZ1090 and other IMG SoCs.
586
587 This driver can also be built as a module. If so, the module
588 will be called i2c-img-scb.
589
590 config I2C_IMX
591 tristate "IMX I2C interface"
592 depends on ARCH_MXC || ARCH_LAYERSCAPE
593 help
594 Say Y here if you want to use the IIC bus controller on
595 the Freescale i.MX/MXC or Layerscape processors.
596
597 This driver can also be built as a module. If so, the module
598 will be called i2c-imx.
599
600 config I2C_IOP3XX
601 tristate "Intel IOPx3xx and IXP4xx on-chip I2C interface"
602 depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IXP4XX || ARCH_IOP13XX
603 help
604 Say Y here if you want to use the IIC bus controller on
605 the Intel IOPx3xx I/O Processors or IXP4xx Network Processors.
606
607 This driver can also be built as a module. If so, the module
608 will be called i2c-iop3xx.
609
610 config I2C_JZ4780
611 tristate "JZ4780 I2C controller interface support"
612 depends on MACH_JZ4780 || COMPILE_TEST
613 help
614 If you say yes to this option, support will be included for the
615 Ingenic JZ4780 I2C controller.
616
617 If you don't know what to do here, say N.
618
619 config I2C_KEMPLD
620 tristate "Kontron COM I2C Controller"
621 depends on MFD_KEMPLD
622 help
623 This enables support for the I2C bus interface on some Kontron ETX
624 and COMexpress (ETXexpress) modules.
625
626 This driver can also be built as a module. If so, the module
627 will be called i2c-kempld.
628
629 config I2C_LPC2K
630 tristate "I2C bus support for NXP LPC2K/LPC178x/18xx/43xx"
631 depends on OF && (ARCH_LPC18XX || COMPILE_TEST)
632 help
633 This driver supports the I2C interface found several NXP
634 devices including LPC2xxx, LPC178x/7x and LPC18xx/43xx.
635
636 This driver can also be built as a module. If so, the module
637 will be called i2c-lpc2k.
638
639 config I2C_MESON
640 tristate "Amlogic Meson I2C controller"
641 depends on ARCH_MESON || COMPILE_TEST
642 help
643 If you say yes to this option, support will be included for the
644 I2C interface on the Amlogic Meson family of SoCs.
645
646 config I2C_MPC
647 tristate "MPC107/824x/85xx/512x/52xx/83xx/86xx"
648 depends on PPC
649 help
650 If you say yes to this option, support will be included for the
651 built-in I2C interface on the MPC107, Tsi107, MPC512x, MPC52xx,
652 MPC8240, MPC8245, MPC83xx, MPC85xx and MPC8641 family processors.
653
654 This driver can also be built as a module. If so, the module
655 will be called i2c-mpc.
656
657 config I2C_MT65XX
658 tristate "MediaTek I2C adapter"
659 depends on ARCH_MEDIATEK || COMPILE_TEST
660 depends on HAS_DMA
661 help
662 This selects the MediaTek(R) Integrated Inter Circuit bus driver
663 for MT65xx and MT81xx.
664 If you want to use MediaTek(R) I2C interface, say Y or M here.
665 If unsure, say N.
666
667 config I2C_MV64XXX
668 tristate "Marvell mv64xxx I2C Controller"
669 depends on MV64X60 || PLAT_ORION || ARCH_SUNXI || ARCH_MVEBU
670 help
671 If you say yes to this option, support will be included for the
672 built-in I2C interface on the Marvell 64xxx line of host bridges.
673 This driver is also used for Allwinner SoCs I2C controllers.
674
675 This driver can also be built as a module. If so, the module
676 will be called i2c-mv64xxx.
677
678 config I2C_MXS
679 tristate "Freescale i.MX28 I2C interface"
680 depends on SOC_IMX28
681 select STMP_DEVICE
682 help
683 Say Y here if you want to use the I2C bus controller on
684 the Freescale i.MX28 processors.
685
686 This driver can also be built as a module. If so, the module
687 will be called i2c-mxs.
688
689 config I2C_NOMADIK
690 tristate "ST-Ericsson Nomadik/Ux500 I2C Controller"
691 depends on ARM_AMBA
692 help
693 If you say yes to this option, support will be included for the
694 I2C interface from ST-Ericsson's Nomadik and Ux500 architectures,
695 as well as the STA2X11 PCIe I/O HUB.
696
697 config I2C_OCORES
698 tristate "OpenCores I2C Controller"
699 help
700 If you say yes to this option, support will be included for the
701 OpenCores I2C controller. For details see
702 http://www.opencores.org/projects.cgi/web/i2c/overview
703
704 This driver can also be built as a module. If so, the module
705 will be called i2c-ocores.
706
707 config I2C_OMAP
708 tristate "OMAP I2C adapter"
709 depends on ARCH_OMAP
710 default y if MACH_OMAP_H3 || MACH_OMAP_OSK
711 help
712 If you say yes to this option, support will be included for the
713 I2C interface on the Texas Instruments OMAP1/2 family of processors.
714 Like OMAP1510/1610/1710/5912 and OMAP242x.
715 For details see http://www.ti.com/omap.
716
717 config I2C_PASEMI
718 tristate "PA Semi SMBus interface"
719 depends on PPC_PASEMI && PCI
720 help
721 Supports the PA Semi PWRficient on-chip SMBus interfaces.
722
723 config I2C_PCA_PLATFORM
724 tristate "PCA9564/PCA9665 as platform device"
725 select I2C_ALGOPCA
726 default n
727 help
728 This driver supports a memory mapped Philips PCA9564/PCA9665
729 parallel bus to I2C bus controller.
730
731 This driver can also be built as a module. If so, the module
732 will be called i2c-pca-platform.
733
734 config I2C_PMCMSP
735 tristate "PMC MSP I2C TWI Controller"
736 depends on PMC_MSP
737 help
738 This driver supports the PMC TWI controller on MSP devices.
739
740 This driver can also be built as module. If so, the module
741 will be called i2c-pmcmsp.
742
743 config I2C_PNX
744 tristate "I2C bus support for Philips PNX and NXP LPC targets"
745 depends on ARCH_LPC32XX
746 help
747 This driver supports the Philips IP3204 I2C IP block master and/or
748 slave controller
749
750 This driver can also be built as a module. If so, the module
751 will be called i2c-pnx.
752
753 config I2C_PUV3
754 tristate "PKUnity v3 I2C bus support"
755 depends on UNICORE32 && ARCH_PUV3
756 select I2C_ALGOBIT
757 help
758 This driver supports the I2C IP inside the PKUnity-v3 SoC.
759 This I2C bus controller is under AMBA/AXI bus.
760
761 This driver can also be built as a module. If so, the module
762 will be called i2c-puv3.
763
764 config I2C_PXA
765 tristate "Intel PXA2XX I2C adapter"
766 depends on ARCH_PXA || ARCH_MMP || (X86_32 && PCI && OF)
767 help
768 If you have devices in the PXA I2C bus, say yes to this option.
769 This driver can also be built as a module. If so, the module
770 will be called i2c-pxa.
771
772 config I2C_PXA_PCI
773 def_bool I2C_PXA && X86_32 && PCI && OF
774
775 config I2C_PXA_SLAVE
776 bool "Intel PXA2XX I2C Slave comms support"
777 depends on I2C_PXA && !X86_32
778 help
779 Support I2C slave mode communications on the PXA I2C bus. This
780 is necessary for systems where the PXA may be a target on the
781 I2C bus.
782
783 config I2C_QUP
784 tristate "Qualcomm QUP based I2C controller"
785 depends on ARCH_QCOM
786 help
787 If you say yes to this option, support will be included for the
788 built-in I2C interface on the Qualcomm SoCs.
789
790 This driver can also be built as a module. If so, the module
791 will be called i2c-qup.
792
793 config I2C_RIIC
794 tristate "Renesas RIIC adapter"
795 depends on ARCH_RENESAS || COMPILE_TEST
796 help
797 If you say yes to this option, support will be included for the
798 Renesas RIIC I2C interface.
799
800 This driver can also be built as a module. If so, the module
801 will be called i2c-riic.
802
803 config I2C_RK3X
804 tristate "Rockchip RK3xxx I2C adapter"
805 depends on OF && COMMON_CLK
806 help
807 Say Y here to include support for the I2C adapter in Rockchip RK3xxx
808 SoCs.
809
810 This driver can also be built as a module. If so, the module will
811 be called i2c-rk3x.
812
813 config HAVE_S3C2410_I2C
814 bool
815 help
816 This will include I2C support for Samsung SoCs. If you want to
817 include I2C support for any machine, kindly select this in the
818 respective Kconfig file.
819
820 config I2C_S3C2410
821 tristate "S3C2410 I2C Driver"
822 depends on HAVE_S3C2410_I2C
823 help
824 Say Y here to include support for I2C controller in the
825 Samsung SoCs.
826
827 config I2C_SH7760
828 tristate "Renesas SH7760 I2C Controller"
829 depends on CPU_SUBTYPE_SH7760
830 help
831 This driver supports the 2 I2C interfaces on the Renesas SH7760.
832
833 This driver can also be built as a module. If so, the module
834 will be called i2c-sh7760.
835
836 config I2C_SH_MOBILE
837 tristate "SuperH Mobile I2C Controller"
838 depends on HAS_DMA
839 depends on SUPERH || ARCH_RENESAS || COMPILE_TEST
840 help
841 If you say yes to this option, support will be included for the
842 built-in I2C interface on the Renesas SH-Mobile processor.
843
844 This driver can also be built as a module. If so, the module
845 will be called i2c-sh_mobile.
846
847 config I2C_SIMTEC
848 tristate "Simtec Generic I2C interface"
849 select I2C_ALGOBIT
850 help
851 If you say yes to this option, support will be included for
852 the Simtec Generic I2C interface. This driver is for the
853 simple I2C bus used on newer Simtec products for general
854 I2C, such as DDC on the Simtec BBD2016A.
855
856 This driver can also be built as a module. If so, the module
857 will be called i2c-simtec.
858
859 config I2C_SIRF
860 tristate "CSR SiRFprimaII I2C interface"
861 depends on ARCH_SIRF
862 help
863 If you say yes to this option, support will be included for the
864 CSR SiRFprimaII I2C interface.
865
866 This driver can also be built as a module. If so, the module
867 will be called i2c-sirf.
868
869 config I2C_ST
870 tristate "STMicroelectronics SSC I2C support"
871 depends on ARCH_STI
872 help
873 Enable this option to add support for STMicroelectronics SoCs
874 hardware SSC (Synchronous Serial Controller) as an I2C controller.
875
876 This driver can also be built as module. If so, the module
877 will be called i2c-st.
878
879 config I2C_STU300
880 tristate "ST Microelectronics DDC I2C interface"
881 depends on MACH_U300
882 default y if MACH_U300
883 help
884 If you say yes to this option, support will be included for the
885 I2C interface from ST Microelectronics simply called "DDC I2C"
886 supporting both I2C and DDC, used in e.g. the U300 series
887 mobile platforms.
888
889 This driver can also be built as a module. If so, the module
890 will be called i2c-stu300.
891
892 config I2C_SUN6I_P2WI
893 tristate "Allwinner sun6i internal P2WI controller"
894 depends on RESET_CONTROLLER
895 depends on MACH_SUN6I || COMPILE_TEST
896 help
897 If you say yes to this option, support will be included for the
898 P2WI (Push/Pull 2 Wire Interface) controller embedded in some sunxi
899 SOCs.
900 The P2WI looks like an SMBus controller (which supports only byte
901 accesses), except that it only supports one slave device.
902 This interface is used to connect to specific PMIC devices (like the
903 AXP221).
904
905 config I2C_TEGRA
906 tristate "NVIDIA Tegra internal I2C controller"
907 depends on ARCH_TEGRA
908 help
909 If you say yes to this option, support will be included for the
910 I2C controller embedded in NVIDIA Tegra SOCs
911
912 config I2C_UNIPHIER
913 tristate "UniPhier FIFO-less I2C controller"
914 depends on ARCH_UNIPHIER || COMPILE_TEST
915 help
916 If you say yes to this option, support will be included for
917 the UniPhier FIFO-less I2C interface embedded in PH1-LD4, PH1-sLD8,
918 or older UniPhier SoCs.
919
920 config I2C_UNIPHIER_F
921 tristate "UniPhier FIFO-builtin I2C controller"
922 depends on ARCH_UNIPHIER || COMPILE_TEST
923 help
924 If you say yes to this option, support will be included for
925 the UniPhier FIFO-builtin I2C interface embedded in PH1-Pro4,
926 PH1-Pro5, or newer UniPhier SoCs.
927
928 config I2C_VERSATILE
929 tristate "ARM Versatile/Realview I2C bus support"
930 depends on ARCH_VERSATILE || ARCH_REALVIEW || ARCH_VEXPRESS || COMPILE_TEST
931 select I2C_ALGOBIT
932 help
933 Say yes if you want to support the I2C serial bus on ARMs Versatile
934 range of platforms.
935
936 This driver can also be built as a module. If so, the module
937 will be called i2c-versatile.
938
939 config I2C_WMT
940 tristate "Wondermedia WM8xxx SoC I2C bus support"
941 depends on ARCH_VT8500
942 help
943 Say yes if you want to support the I2C bus on Wondermedia 8xxx-series
944 SoCs.
945
946 This driver can also be built as a module. If so, the module will be
947 called i2c-wmt.
948
949 config I2C_OCTEON
950 tristate "Cavium OCTEON I2C bus support"
951 depends on CAVIUM_OCTEON_SOC
952 help
953 Say yes if you want to support the I2C serial bus on Cavium
954 OCTEON SOC.
955
956 This driver can also be built as a module. If so, the module
957 will be called i2c-octeon.
958
959 config I2C_XILINX
960 tristate "Xilinx I2C Controller"
961 depends on HAS_IOMEM
962 help
963 If you say yes to this option, support will be included for the
964 Xilinx I2C controller.
965
966 This driver can also be built as a module. If so, the module
967 will be called xilinx_i2c.
968
969 config I2C_XLR
970 tristate "Netlogic XLR and Sigma Designs I2C support"
971 depends on CPU_XLR || ARCH_TANGO
972 help
973 This driver enables support for the on-chip I2C interface of
974 the Netlogic XLR/XLS MIPS processors and Sigma Designs SOCs.
975
976 This driver can also be built as a module. If so, the module
977 will be called i2c-xlr.
978
979 config I2C_XLP9XX
980 tristate "XLP9XX I2C support"
981 depends on CPU_XLP || ARCH_VULCAN || COMPILE_TEST
982 help
983 This driver enables support for the on-chip I2C interface of
984 the Broadcom XLP9xx/XLP5xx MIPS and Vulcan ARM64 processors.
985
986 This driver can also be built as a module. If so, the module will
987 be called i2c-xlp9xx.
988
989 config I2C_RCAR
990 tristate "Renesas R-Car I2C Controller"
991 depends on HAS_DMA
992 depends on ARCH_RENESAS || COMPILE_TEST
993 select I2C_SLAVE
994 help
995 If you say yes to this option, support will be included for the
996 R-Car I2C controller.
997
998 This driver can also be built as a module. If so, the module
999 will be called i2c-rcar.
1000
1001 comment "External I2C/SMBus adapter drivers"
1002
1003 config I2C_DIOLAN_U2C
1004 tristate "Diolan U2C-12 USB adapter"
1005 depends on USB
1006 help
1007 If you say yes to this option, support will be included for Diolan
1008 U2C-12, a USB to I2C interface.
1009
1010 This driver can also be built as a module. If so, the module
1011 will be called i2c-diolan-u2c.
1012
1013 config I2C_DLN2
1014 tristate "Diolan DLN-2 USB I2C adapter"
1015 depends on MFD_DLN2
1016 help
1017 If you say yes to this option, support will be included for Diolan
1018 DLN2, a USB to I2C interface.
1019
1020 This driver can also be built as a module. If so, the module
1021 will be called i2c-dln2.
1022
1023 config I2C_PARPORT
1024 tristate "Parallel port adapter"
1025 depends on PARPORT
1026 select I2C_ALGOBIT
1027 select I2C_SMBUS
1028 help
1029 This supports parallel port I2C adapters such as the ones made by
1030 Philips or Velleman, Analog Devices evaluation boards, and more.
1031 Basically any adapter using the parallel port as an I2C bus with
1032 no extra chipset is supported by this driver, or could be.
1033
1034 This driver is a replacement for (and was inspired by) an older
1035 driver named i2c-philips-par. The new driver supports more devices,
1036 and makes it easier to add support for new devices.
1037
1038 An adapter type parameter is now mandatory. Please read the file
1039 Documentation/i2c/busses/i2c-parport for details.
1040
1041 Another driver exists, named i2c-parport-light, which doesn't depend
1042 on the parport driver. This is meant for embedded systems. Don't say
1043 Y here if you intend to say Y or M there.
1044
1045 This support is also available as a module. If so, the module
1046 will be called i2c-parport.
1047
1048 config I2C_PARPORT_LIGHT
1049 tristate "Parallel port adapter (light)"
1050 select I2C_ALGOBIT
1051 select I2C_SMBUS
1052 help
1053 This supports parallel port I2C adapters such as the ones made by
1054 Philips or Velleman, Analog Devices evaluation boards, and more.
1055 Basically any adapter using the parallel port as an I2C bus with
1056 no extra chipset is supported by this driver, or could be.
1057
1058 This driver is a light version of i2c-parport. It doesn't depend
1059 on the parport driver, and uses direct I/O access instead. This
1060 might be preferred on embedded systems where wasting memory for
1061 the clean but heavy parport handling is not an option. The
1062 drawback is a reduced portability and the impossibility to
1063 daisy-chain other parallel port devices.
1064
1065 Don't say Y here if you said Y or M to i2c-parport. Saying M to
1066 both is possible but both modules should not be loaded at the same
1067 time.
1068
1069 This support is also available as a module. If so, the module
1070 will be called i2c-parport-light.
1071
1072 config I2C_ROBOTFUZZ_OSIF
1073 tristate "RobotFuzz Open Source InterFace USB adapter"
1074 depends on USB
1075 help
1076 If you say yes to this option, support will be included for the
1077 RobotFuzz Open Source InterFace USB to I2C interface.
1078
1079 This driver can also be built as a module. If so, the module
1080 will be called i2c-osif.
1081
1082 config I2C_TAOS_EVM
1083 tristate "TAOS evaluation module"
1084 depends on TTY
1085 select SERIO
1086 select SERIO_SERPORT
1087 default n
1088 help
1089 This supports TAOS evaluation modules on serial port. In order to
1090 use this driver, you will need the inputattach tool, which is part
1091 of the input-utils package.
1092
1093 If unsure, say N.
1094
1095 This support is also available as a module. If so, the module
1096 will be called i2c-taos-evm.
1097
1098 config I2C_TINY_USB
1099 tristate "Tiny-USB adapter"
1100 depends on USB
1101 help
1102 If you say yes to this option, support will be included for the
1103 i2c-tiny-usb, a simple do-it-yourself USB to I2C interface. See
1104 http://www.harbaum.org/till/i2c_tiny_usb for hardware details.
1105
1106 This driver can also be built as a module. If so, the module
1107 will be called i2c-tiny-usb.
1108
1109 config I2C_VIPERBOARD
1110 tristate "Viperboard I2C master support"
1111 depends on MFD_VIPERBOARD && USB
1112 help
1113 Say yes here to access the I2C part of the Nano River
1114 Technologies Viperboard as I2C master.
1115 See viperboard API specification and Nano
1116 River Tech's viperboard.h for detailed meaning
1117 of the module parameters.
1118
1119 comment "Other I2C/SMBus bus drivers"
1120
1121 config I2C_ACORN
1122 tristate "Acorn IOC/IOMD I2C bus support"
1123 depends on ARCH_ACORN
1124 default y
1125 select I2C_ALGOBIT
1126 help
1127 Say yes if you want to support the I2C bus on Acorn platforms.
1128
1129 If you don't know, say Y.
1130
1131 config I2C_ELEKTOR
1132 tristate "Elektor ISA card"
1133 depends on ISA && HAS_IOPORT_MAP && BROKEN_ON_SMP
1134 select I2C_ALGOPCF
1135 help
1136 This supports the PCF8584 ISA bus I2C adapter. Say Y if you own
1137 such an adapter.
1138
1139 This support is also available as a module. If so, the module
1140 will be called i2c-elektor.
1141
1142 config I2C_PCA_ISA
1143 tristate "PCA9564/PCA9665 on an ISA bus"
1144 depends on ISA
1145 select I2C_ALGOPCA
1146 default n
1147 help
1148 This driver supports ISA boards using the Philips PCA9564/PCA9665
1149 parallel bus to I2C bus controller.
1150
1151 This driver can also be built as a module. If so, the module
1152 will be called i2c-pca-isa.
1153
1154 This device is almost undetectable and using this driver on a
1155 system which doesn't have this device will result in long
1156 delays when I2C/SMBus chip drivers are loaded (e.g. at boot
1157 time). If unsure, say N.
1158
1159 config I2C_SIBYTE
1160 tristate "SiByte SMBus interface"
1161 depends on SIBYTE_SB1xxx_SOC
1162 help
1163 Supports the SiByte SOC on-chip I2C interfaces (2 channels).
1164
1165 config I2C_CROS_EC_TUNNEL
1166 tristate "ChromeOS EC tunnel I2C bus"
1167 depends on MFD_CROS_EC
1168 help
1169 If you say yes here you get an I2C bus that will tunnel i2c commands
1170 through to the other side of the ChromeOS EC to the i2c bus
1171 connected there. This will work whatever the interface used to
1172 talk to the EC (SPI, I2C or LPC).
1173
1174 config I2C_XGENE_SLIMPRO
1175 tristate "APM X-Gene SoC I2C SLIMpro devices support"
1176 depends on ARCH_XGENE && MAILBOX
1177 help
1178 Enable I2C bus access using the APM X-Gene SoC SLIMpro
1179 co-processor. The I2C device access the I2C bus via the X-Gene
1180 to SLIMpro (On chip coprocessor) mailbox mechanism.
1181 If unsure, say N.
1182
1183 config SCx200_ACB
1184 tristate "Geode ACCESS.bus support"
1185 depends on X86_32 && PCI
1186 help
1187 Enable the use of the ACCESS.bus controllers on the Geode SCx200 and
1188 SC1100 processors and the CS5535 and CS5536 Geode companion devices.
1189
1190 If you don't know what to do here, say N.
1191
1192 This support is also available as a module. If so, the module
1193 will be called scx200_acb.
1194
1195 config I2C_OPAL
1196 tristate "IBM OPAL I2C driver"
1197 depends on PPC_POWERNV
1198 default y
1199 help
1200 This exposes the PowerNV platform i2c busses to the linux i2c layer,
1201 the driver is based on the OPAL interfaces.
1202
1203 This driver can also be built as a module. If so, the module will be
1204 called as i2c-opal.
1205
1206 endmenu
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