1 # SPDX-License-Identifier: GPL-2.0-only
3 # Sensor device configuration
6 menu "I2C Hardware Bus support"
9 comment "PC SMBus host controller drivers"
15 A common module to provide an API to instantiate UCSI device
16 for Cypress CCGx Type-C controller. Individual bus drivers
17 need to select this one on demand.
23 If you say yes to this option, support will be included for the SMB
24 Host controller on Acer Labs Inc. (ALI) M1535 South Bridges. The SMB
25 controller is part of the 7101 device, which is an ACPI-compliant
26 Power Management Unit (PMU).
28 This driver can also be built as a module. If so, the module
29 will be called i2c-ali1535.
35 If you say yes to this option, support will be included for the SMB
36 Host controller on Acer Labs Inc. (ALI) M1563 South Bridges. The SMB
37 controller is part of the 7101 device, which is an ACPI-compliant
38 Power Management Unit (PMU).
40 This driver can also be built as a module. If so, the module
41 will be called i2c-ali1563.
47 If you say yes to this option, support will be included for the
48 Acer Labs Inc. (ALI) M1514 and M1543 motherboard I2C interfaces.
50 This driver can also be built as a module. If so, the module
51 will be called i2c-ali15x3.
54 tristate "AMD 756/766/768/8111 and nVidia nForce"
57 If you say yes to this option, support will be included for the AMD
58 756/766/768 mainboard I2C interfaces. The driver also includes
59 support for the first (SMBus 1.0) I2C interface of the AMD 8111 and
60 the nVidia nForce I2C interface.
62 This driver can also be built as a module. If so, the module
63 will be called i2c-amd756.
65 config I2C_AMD756_S4882
66 tristate "SMBus multiplexing on the Tyan S4882"
67 depends on I2C_AMD756 && X86
69 Enabling this option will add specific SMBus support for the Tyan
70 S4882 motherboard. On this 4-CPU board, the SMBus is multiplexed
71 over 8 different channels, where the various memory module EEPROMs
72 and temperature sensors live. Saying yes here will give you access
73 to these in addition to the trunk.
75 This driver can also be built as a module. If so, the module
76 will be called i2c-amd756-s4882.
82 If you say yes to this option, support will be included for the
83 second (SMBus 2.0) AMD 8111 mainboard I2C interface.
85 This driver can also be built as a module. If so, the module
86 will be called i2c-amd8111.
89 tristate "AMD MP2 PCIe"
90 depends on PCI && ACPI
92 If you say yes to this option, support will be included for the AMD
95 This driver can also be built as modules. If so, the modules will
96 be called i2c-amd-mp2-pci and i2c-amd-mp2-plat.
99 tristate "Hix5hd2 high-speed I2C driver"
100 depends on ARCH_HISI || ARCH_HIX5HD2 || COMPILE_TEST
102 Say Y here to include support for the high-speed I2C controller
103 used in HiSilicon hix5hd2 SoCs.
105 This driver can also be built as a module. If so, the module
106 will be called i2c-hix5hd2.
109 tristate "Intel 82801 (ICH/PCH)"
112 select CHECK_SIGNATURE if X86 && DMI
115 If you say yes to this option, support will be included for the Intel
116 801 family of mainboard I2C interfaces. Specifically, the following
117 versions of the chipset are supported:
123 82801EB/ER (ICH5/ICH5R)
160 Meteor Lake (SOC and PCH)
163 This driver can also be built as a module. If so, the module
164 will be called i2c-i801.
167 tristate "Intel SCH SMBus 1.0"
171 Say Y here if you want to use SMBus controller on the Intel SCH
174 This driver can also be built as a module. If so, the module
175 will be called i2c-isch.
178 tristate "Intel iSMT SMBus Controller"
179 depends on PCI && X86
181 If you say yes to this option, support will be included for the Intel
182 iSMT SMBus host controller interface.
184 This driver can also be built as a module. If so, the module will be
188 tristate "Intel PIIX4 and compatible (ATI/AMD/Serverworks/Broadcom/SMSC)"
191 If you say yes to this option, support will be included for the Intel
192 PIIX4 family of mainboard I2C interfaces. Specifically, the following
193 versions of the chipset are supported (note that Serverworks is part
214 Some AMD chipsets contain two PIIX4-compatible SMBus
215 controllers. This driver will attempt to use both controllers
216 on the SB700/SP5100, if they have been initialized by the BIOS.
218 This driver can also be built as a module. If so, the module
219 will be called i2c-piix4.
222 tristate "Intel Cherry Trail Whiskey Cove PMIC smbus controller"
223 depends on INTEL_SOC_PMIC_CHTWC
225 If you say yes to this option, support will be included for the
226 SMBus controller found in the Intel Cherry Trail Whiskey Cove PMIC
227 found on some Intel Cherry Trail systems.
229 Note this controller is hooked up to a TI bq24292i charger-IC,
230 combined with a FUSB302 Type-C port-controller as such it is advised
231 to also select CONFIG_TYPEC_FUSB302=m.
234 tristate "Nvidia nForce2, nForce3 and nForce4"
237 If you say yes to this option, support will be included for the Nvidia
238 nForce2, nForce3 and nForce4 families of mainboard I2C interfaces.
240 This driver can also be built as a module. If so, the module
241 will be called i2c-nforce2.
243 config I2C_NFORCE2_S4985
244 tristate "SMBus multiplexing on the Tyan S4985"
245 depends on I2C_NFORCE2 && X86
247 Enabling this option will add specific SMBus support for the Tyan
248 S4985 motherboard. On this 4-CPU board, the SMBus is multiplexed
249 over 4 different channels, where the various memory module EEPROMs
250 live. Saying yes here will give you access to these in addition
253 This driver can also be built as a module. If so, the module
254 will be called i2c-nforce2-s4985.
256 config I2C_NVIDIA_GPU
257 tristate "NVIDIA GPU I2C controller"
261 If you say yes to this option, support will be included for the
262 NVIDIA GPU I2C controller which is used to communicate with the GPU's
263 Type-C controller. This driver can also be built as a module called
270 If you say yes to this option, support will be included for the
271 SiS5595 SMBus (a subset of I2C) interface.
273 This driver can also be built as a module. If so, the module
274 will be called i2c-sis5595.
277 tristate "SiS 630/730/964"
280 If you say yes to this option, support will be included for the
281 SiS630, SiS730 and SiS964 SMBus (a subset of I2C) interface.
283 This driver can also be built as a module. If so, the module
284 will be called i2c-sis630.
290 If you say yes to this option, support will be included for the SiS
291 96x SMBus (a subset of I2C) interfaces. Specifically, the following
292 chipsets are supported:
301 This driver can also be built as a module. If so, the module
302 will be called i2c-sis96x.
305 tristate "VIA VT82C586B"
309 If you say yes to this option, support will be included for the VIA
310 82C586B I2C interface
312 This driver can also be built as a module. If so, the module
313 will be called i2c-via.
316 tristate "VIA VT82C596/82C686/82xx and CX700/VX8xx/VX900"
319 If you say yes to this option, support will be included for the VIA
320 VT82C596 and later SMBus interface. Specifically, the following
321 chipsets are supported:
334 This driver can also be built as a module. If so, the module
335 will be called i2c-viapro.
339 comment "ACPI drivers"
342 tristate "SMBus Control Method Interface"
344 This driver supports the SMBus Control Method Interface. It needs the
345 BIOS to declare ACPI control methods as described in the SMBus Control
346 Method Interface specification.
348 To compile this driver as a module, choose M here:
349 the module will be called i2c-scmi.
353 comment "Mac SMBus host controller drivers"
354 depends on PPC_CHRP || PPC_PMAC
357 tristate "CHRP Apple Hydra Mac I/O I2C interface"
358 depends on PCI && PPC_CHRP
361 This supports the use of the I2C interface in the Apple Hydra Mac
362 I/O chip on some CHRP machines (e.g. the LongTrail). Say Y if you
365 This support is also available as a module. If so, the module
366 will be called i2c-hydra.
369 tristate "Powermac I2C interface"
373 This exposes the various PowerMac i2c interfaces to the linux i2c
374 layer and to userland. It is used by various drivers on the PowerMac
375 platform, and should generally be enabled.
377 This support is also available as a module. If so, the module
378 will be called i2c-powermac.
380 comment "I2C system bus drivers (mostly embedded / system-on-chip)"
383 tristate "Altera Soft IP I2C"
384 depends on ARCH_INTEL_SOCFPGA || NIOS2 || COMPILE_TEST
387 If you say yes to this option, support will be included for the
388 Altera Soft IP I2C interfaces on SoCFPGA and Nios2 architectures.
390 This driver can also be built as a module. If so, the module
391 will be called i2c-altera.
394 tristate "Aspeed I2C Controller"
395 depends on ARCH_ASPEED || COMPILE_TEST
397 If you say yes to this option, support will be included for the
398 Aspeed I2C controller.
400 This driver can also be built as a module. If so, the module
401 will be called i2c-aspeed.
404 tristate "Atmel AT91 I2C Two-Wire interface (TWI)"
405 depends on ARCH_AT91 || COMPILE_TEST
407 This supports the use of the I2C interface on Atmel AT91
410 A serious problem is that there is no documented way to issue
411 repeated START conditions for more than two messages, as needed
412 to support combined I2C messages. Use the i2c-gpio driver
413 unless your system can cope with this limitation.
415 Caution! at91rm9200, at91sam9261, at91sam9260, at91sam9263 devices
416 don't have clock stretching in transmission mode. For that reason,
417 you can encounter underrun issues causing premature stop sendings if
418 the latency to fill the transmission register is too long. If you
419 are facing this situation, use the i2c-gpio driver.
421 config I2C_AT91_SLAVE_EXPERIMENTAL
422 tristate "Microchip AT91 I2C experimental slave mode"
426 If you say yes to this option, support for the slave mode will be
427 added. Caution: do not use it for production. This feature has not
428 been tested in a heavy way, help wanted.
429 There are known bugs:
430 - It can hang, on a SAMA5D4, after several transfers.
431 - There are some mismtaches with a SAMA5D4 as slave and a SAMA5D2 as
435 tristate "Au1550/Au1200/Au1300 SMBus interface"
436 depends on MIPS_ALCHEMY
438 If you say yes to this option, support will be included for the
439 Au1550/Au1200/Au1300 SMBus interface.
441 This driver can also be built as a module. If so, the module
442 will be called i2c-au1550.
445 tristate "Axxia I2C controller"
446 depends on ARCH_AXXIA || COMPILE_TEST
450 Say yes if you want to support the I2C bus on Axxia platforms.
452 Please note that this controller is limited to transfers of maximum
453 255 bytes in length. Any attempt to to a larger transfer will return
457 tristate "Broadcom BCM2835 I2C controller"
458 depends on ARCH_BCM2835 || ARCH_BRCMSTB || COMPILE_TEST
459 depends on COMMON_CLK
461 If you say yes to this option, support will be included for the
462 BCM2835 I2C controller.
464 If you don't know what to do here, say N.
466 This support is also available as a module. If so, the module
467 will be called i2c-bcm2835.
470 tristate "Broadcom iProc I2C controller"
471 depends on ARCH_BCM_IPROC || COMPILE_TEST
472 default ARCH_BCM_IPROC
475 If you say yes to this option, support will be included for the
476 Broadcom iProc I2C controller.
478 If you don't know what to do here, say N.
481 tristate "BCM Kona I2C adapter"
482 depends on ARCH_BCM_MOBILE || COMPILE_TEST
483 default y if ARCH_BCM_MOBILE
485 If you say yes to this option, support will be included for the
486 I2C interface on the Broadcom Kona family of processors.
488 If you do not need KONA I2C interface, say N.
491 tristate "BRCM Settop/DSL I2C controller"
492 depends on ARCH_BCM2835 || ARCH_BCMBCA || ARCH_BRCMSTB || \
493 BMIPS_GENERIC || COMPILE_TEST
496 If you say yes to this option, support will be included for the
497 I2C interface on the Broadcom Settop/DSL SoCs.
499 If you do not need I2C interface, say N.
502 tristate "Cadence I2C Controller"
503 depends on ARCH_ZYNQ || ARM64 || XTENSA || COMPILE_TEST
505 Say yes here to select Cadence I2C Host Controller. This controller is
506 e.g. used by Xilinx Zynq.
509 tristate "CBUS I2C driver"
510 depends on GPIOLIB || COMPILE_TEST
512 Support for CBUS access using I2C API. Mostly relevant for Nokia
513 Internet Tablets (770, N800 and N810).
515 This driver can also be built as a module. If so, the module
516 will be called i2c-cbus-gpio.
519 tristate "Freescale CPM1 or CPM2 (MPC8xx/826x)"
520 depends on CPM1 || CPM2
522 This supports the use of the I2C interface on Freescale
523 processors with CPM1 or CPM2.
525 This driver can also be built as a module. If so, the module
526 will be called i2c-cpm.
529 tristate "DaVinci I2C driver"
530 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
532 Support for TI DaVinci I2C controller driver.
534 This driver can also be built as a module. If so, the module
535 will be called i2c-davinci.
537 Please note that this driver might be needed to bring up other
538 devices such as DaVinci NIC.
539 For details please see http://www.ti.com/davinci
541 config I2C_DESIGNWARE_CORE
545 config I2C_DESIGNWARE_SLAVE
546 bool "Synopsys DesignWare Slave"
547 depends on I2C_DESIGNWARE_CORE
550 If you say yes to this option, support will be included for the
551 Synopsys DesignWare I2C slave adapter.
553 This is not a standalone module, this module compiles together with
556 config I2C_DESIGNWARE_PLATFORM
557 tristate "Synopsys DesignWare Platform"
558 depends on (ACPI && COMMON_CLK) || !ACPI
559 select I2C_DESIGNWARE_CORE
560 select MFD_SYSCON if MIPS_BAIKAL_T1
562 If you say yes to this option, support will be included for the
563 Synopsys DesignWare I2C adapter.
565 This driver can also be built as a module. If so, the module
566 will be called i2c-designware-platform.
568 config I2C_DESIGNWARE_AMDPSP
569 bool "AMD PSP I2C semaphore support"
571 depends on CRYPTO_DEV_SP_PSP
573 depends on I2C_DESIGNWARE_PLATFORM
574 depends on (I2C_DESIGNWARE_PLATFORM=y && CRYPTO_DEV_CCP_DD=y) || \
575 (I2C_DESIGNWARE_PLATFORM=m && CRYPTO_DEV_CCP_DD)
577 This driver enables managed host access to the selected I2C bus shared
578 between AMD CPU and AMD PSP.
580 You should say Y if running on an AMD system equipped with the PSP.
582 config I2C_DESIGNWARE_BAYTRAIL
583 bool "Intel Baytrail I2C semaphore support"
585 depends on I2C_DESIGNWARE_PLATFORM
586 depends on (I2C_DESIGNWARE_PLATFORM=m && IOSF_MBI) || \
587 (I2C_DESIGNWARE_PLATFORM=y && IOSF_MBI=y)
589 This driver enables managed host access to the PMIC I2C bus on select
590 Intel BayTrail platforms using the X-Powers AXP288 PMIC. It allows
591 the host to request uninterrupted access to the PMIC's I2C bus from
592 the platform firmware controlling it. You should say Y if running on
593 a BayTrail system using the AXP288.
595 config I2C_DESIGNWARE_PCI
596 tristate "Synopsys DesignWare PCI"
598 select I2C_DESIGNWARE_CORE
601 If you say yes to this option, support will be included for the
602 Synopsys DesignWare I2C adapter. Only master mode is supported.
604 This driver can also be built as a module. If so, the module
605 will be called i2c-designware-pci.
608 tristate "Conexant Digicolor I2C driver"
609 depends on ARCH_DIGICOLOR || COMPILE_TEST
611 Support for Conexant Digicolor SoCs (CX92755) I2C controller driver.
613 This driver can also be built as a module. If so, the module
614 will be called i2c-digicolor.
617 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) I2C"
618 depends on PCI && (X86_32 || MIPS || COMPILE_TEST)
620 This driver is for PCH(Platform controller Hub) I2C of EG20T which
621 is an IOH(Input/Output Hub) for x86 embedded processor.
622 This driver can access PCH I2C bus device.
624 This driver also can be used for LAPIS Semiconductor IOH(Input/
625 Output Hub), ML7213, ML7223 and ML7831.
626 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
627 for MP(Media Phone) use and ML7831 IOH is for general purpose use.
628 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
629 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
632 tristate "EMMA Mobile series I2C adapter"
636 If you say yes to this option, support will be included for the
637 I2C interface on the Renesas Electronics EM/EV family of processors.
640 tristate "Exynos high-speed I2C driver"
642 depends on ARCH_EXYNOS || COMPILE_TEST
643 default y if ARCH_EXYNOS
645 High-speed I2C controller on Samsung Exynos5 and newer Samsung SoCs:
646 Exynos5250, Exynos5260, Exynos5410, Exynos542x, Exynos5800,
647 Exynos5433, Exynos7, Exynos850 and ExynosAutoV9.
648 Choose Y here only if you build for such Samsung SoC.
651 tristate "GPIO-based bitbanging I2C"
652 depends on GPIOLIB || COMPILE_TEST
655 This is a very simple bitbanging I2C driver utilizing the
656 arch-neutral GPIO API to control the SCL and SDA lines.
658 config I2C_GPIO_FAULT_INJECTOR
659 bool "GPIO-based fault injector"
662 This adds some functionality to the i2c-gpio driver which can inject
663 faults to an I2C bus, so another bus master can be stress-tested.
664 This is for debugging. If unsure, say 'no'.
667 tristate "GXP I2C Interface"
668 depends on ARCH_HPE_GXP || COMPILE_TEST
670 This enables support for GXP I2C interface. The I2C engines can be
671 either I2C master or I2C slaves.
673 config I2C_HIGHLANDER
674 tristate "Highlander FPGA SMBus interface"
675 depends on SH_HIGHLANDER || COMPILE_TEST
677 If you say yes to this option, support will be included for
678 the SMBus interface located in the FPGA on various Highlander
679 boards, particularly the R0P7780LC0011RL and R0P7785LC0011RL
680 FPGAs. This is wholly unrelated to the SoC I2C.
682 This driver can also be built as a module. If so, the module
683 will be called i2c-highlander.
686 tristate "HiSilicon I2C controller"
687 depends on ARM64 || COMPILE_TEST
689 Say Y here if you want to have Hisilicon I2C controller support
690 available on the Kunpeng Server.
692 This driver can also be built as a module. If so, the module
693 will be called i2c-hisi.
696 tristate "IBM PPC 4xx on-chip I2C interface"
699 Say Y here if you want to use IIC peripheral found on
700 embedded IBM PPC 4xx based systems.
702 This driver can also be built as a module. If so, the module
703 will be called i2c-ibm_iic.
706 tristate "Imagination Technologies I2C SCB Controller"
707 depends on MIPS || COMPILE_TEST
709 Say Y here if you want to use the IMG I2C SCB controller,
710 available on the TZ1090 and other IMG SoCs.
712 This driver can also be built as a module. If so, the module
713 will be called i2c-img-scb.
716 tristate "IMX I2C interface"
717 depends on ARCH_MXC || ARCH_LAYERSCAPE || COLDFIRE || COMPILE_TEST
720 Say Y here if you want to use the IIC bus controller on
721 the Freescale i.MX/MXC, Layerscape or ColdFire processors.
723 This driver can also be built as a module. If so, the module
724 will be called i2c-imx.
727 tristate "IMX Low Power I2C interface"
728 depends on ARCH_MXC || COMPILE_TEST
730 Say Y here if you want to use the Low Power IIC bus controller
731 on the Freescale i.MX processors.
733 This driver can also be built as a module. If so, the module
734 will be called i2c-imx-lpi2c.
737 tristate "Intel IXP4xx on-chip I2C interface"
738 depends on ARCH_IXP4XX || COMPILE_TEST
740 Say Y here if you want to use the IIC bus controller on
741 the Intel IXP4xx Network Processors.
743 This driver can also be built as a module. If so, the module
744 will be called i2c-iop3xx.
747 tristate "JZ4780 I2C controller interface support"
748 depends on MIPS || COMPILE_TEST
750 If you say yes to this option, support will be included for the
751 Ingenic JZ4780 I2C controller.
753 If you don't know what to do here, say N.
756 tristate "Kontron COM I2C Controller"
757 depends on MFD_KEMPLD
759 This enables support for the I2C bus interface on some Kontron ETX
760 and COMexpress (ETXexpress) modules.
762 This driver can also be built as a module. If so, the module
763 will be called i2c-kempld.
766 tristate "I2C bus support for NXP LPC2K/LPC178x/18xx/43xx"
767 depends on OF && (ARCH_LPC18XX || COMPILE_TEST)
769 This driver supports the I2C interface found several NXP
770 devices including LPC2xxx, LPC178x/7x and LPC18xx/43xx.
772 This driver can also be built as a module. If so, the module
773 will be called i2c-lpc2k.
776 tristate "Loongson LS2X I2C adapter"
777 depends on MACH_LOONGSON64 || COMPILE_TEST
779 If you say yes to this option, support will be included for the
780 I2C interface on the Loongson-2K SoCs and Loongson LS7A bridge
783 This driver can also be built as a module. If so, the module
784 will be called i2c-ls2x.
787 tristate "Mellanox BlueField I2C controller"
788 depends on MELLANOX_PLATFORM && ARM64
792 Enabling this option will add I2C SMBus support for Mellanox BlueField
795 This driver can also be built as a module. If so, the module will be
798 This driver implements an I2C SMBus host controller and enables both
799 master and slave functions.
802 tristate "Amlogic Meson I2C controller"
803 depends on ARCH_MESON || COMPILE_TEST
804 depends on COMMON_CLK
806 If you say yes to this option, support will be included for the
807 I2C interface on the Amlogic Meson family of SoCs.
809 config I2C_MICROCHIP_CORE
810 tristate "Microchip FPGA I2C controller"
811 depends on ARCH_MICROCHIP_POLARFIRE || COMPILE_TEST
814 If you say yes to this option, support will be included for the
815 I2C interface on Microchip FPGAs.
817 This driver can also be built as a module. If so, the module will be
818 called i2c-microchip-core.
821 tristate "MPC107/824x/85xx/512x/52xx/83xx/86xx"
824 If you say yes to this option, support will be included for the
825 built-in I2C interface on the MPC107, Tsi107, MPC512x, MPC52xx,
826 MPC8240, MPC8245, MPC83xx, MPC85xx and MPC8641 family processors.
828 This driver can also be built as a module. If so, the module
829 will be called i2c-mpc.
832 tristate "MediaTek I2C adapter"
833 depends on ARCH_MEDIATEK || COMPILE_TEST
835 This selects the MediaTek(R) Integrated Inter Circuit bus driver
836 for MT65xx and MT81xx.
837 If you want to use MediaTek(R) I2C interface, say Y or M here.
841 tristate "MT7621/MT7628 I2C Controller"
842 depends on (RALINK && (SOC_MT7620 || SOC_MT7621)) || COMPILE_TEST
844 Say Y here to include support for I2C controller in the
845 MediaTek MT7621/MT7628 SoCs.
848 tristate "Marvell mv64xxx I2C Controller"
849 depends on PLAT_ORION || ARCH_SUNXI || ARCH_MVEBU || COMPILE_TEST
851 If you say yes to this option, support will be included for the
852 built-in I2C interface on the Marvell 64xxx line of host bridges.
853 This driver is also used for Allwinner SoCs I2C controllers.
855 This driver can also be built as a module. If so, the module
856 will be called i2c-mv64xxx.
859 tristate "Freescale i.MX28 I2C interface"
860 depends on SOC_IMX28 || COMPILE_TEST
863 Say Y here if you want to use the I2C bus controller on
864 the Freescale i.MX28 processors.
866 This driver can also be built as a module. If so, the module
867 will be called i2c-mxs.
870 tristate "ST-Ericsson Nomadik/Ux500 I2C Controller"
873 If you say yes to this option, support will be included for the
874 I2C interface from ST-Ericsson's Nomadik and Ux500 architectures,
875 as well as the STA2X11 PCIe I/O HUB.
878 tristate "Nuvoton I2C Controller"
879 depends on ARCH_NPCM || COMPILE_TEST
881 If you say yes to this option, support will be included for the
882 Nuvoton I2C controller, which is available on the NPCM BMC
884 Driver can also support slave mode (select I2C_SLAVE).
887 tristate "OpenCores I2C Controller"
889 If you say yes to this option, support will be included for the
890 OpenCores I2C controller. For details see
891 http://www.opencores.org/projects.cgi/web/i2c/overview
893 This driver can also be built as a module. If so, the module
894 will be called i2c-ocores.
897 tristate "OMAP I2C adapter"
898 depends on ARCH_OMAP || ARCH_K3 || COMPILE_TEST
899 default MACH_OMAP_OSK
901 If you say yes to this option, support will be included for the
902 I2C interface on the Texas Instruments OMAP1/2 family of processors.
903 Like OMAP1510/1610/1710/5912 and OMAP242x.
904 For details see http://www.ti.com/omap.
907 tristate "Actions Semiconductor Owl I2C Controller"
908 depends on ARCH_ACTIONS || COMPILE_TEST
910 Say Y here if you want to use the I2C bus controller on
911 the Actions Semiconductor Owl SoC's.
914 tristate "PA Semi SMBus interface"
915 depends on PPC_PASEMI && PCI
917 Supports the PA Semi PWRficient on-chip SMBus interfaces.
920 tristate "Apple SMBus platform driver"
921 depends on !I2C_PASEMI
922 depends on ARCH_APPLE || COMPILE_TEST
925 Say Y here if you want to use the I2C controller present on Apple
926 Silicon chips such as the M1.
928 This driver can also be built as a module. If so, the module
929 will be called i2c-apple.
931 config I2C_PCA_PLATFORM
932 tristate "PCA9564/PCA9665 as platform device"
935 This driver supports a memory mapped Philips PCA9564/PCA9665
936 parallel bus to I2C bus controller.
938 This driver can also be built as a module. If so, the module
939 will be called i2c-pca-platform.
942 tristate "I2C bus support for Philips PNX and NXP LPC targets"
943 depends on ARCH_LPC32XX || COMPILE_TEST
945 This driver supports the Philips IP3204 I2C IP block master and/or
948 This driver can also be built as a module. If so, the module
949 will be called i2c-pnx.
952 tristate "Intel PXA2XX I2C adapter"
953 depends on ARCH_PXA || ARCH_MMP || ARCH_MVEBU || (X86_32 && PCI && OF) || COMPILE_TEST
955 If you have devices in the PXA I2C bus, say yes to this option.
956 This driver can also be built as a module. If so, the module
957 will be called i2c-pxa.
960 def_bool I2C_PXA && X86_32 && PCI && OF
963 bool "Intel PXA2XX I2C Slave comms support"
964 depends on I2C_PXA && !X86_32
967 Support I2C slave mode communications on the PXA I2C bus. This
968 is necessary for systems where the PXA may be a target on the
972 tristate "Qualcomm Camera Control Interface"
973 depends on ARCH_QCOM || COMPILE_TEST
975 If you say yes to this option, support will be included for the
976 built-in camera control interface on the Qualcomm SoCs.
978 This driver can also be built as a module. If so, the module
979 will be called i2c-qcom-cci.
982 tristate "Qualcomm Technologies Inc.'s GENI based I2C controller"
983 depends on ARCH_QCOM || COMPILE_TEST
984 depends on QCOM_GENI_SE
986 This driver supports GENI serial engine based I2C controller in
987 master mode on the Qualcomm Technologies Inc.'s SoCs. If you say
988 yes to this option, support will be included for the built-in I2C
989 interface on the Qualcomm Technologies Inc.'s SoCs.
991 This driver can also be built as a module. If so, the module
992 will be called i2c-qcom-geni.
995 tristate "Qualcomm QUP based I2C controller"
996 depends on ARCH_QCOM || COMPILE_TEST
998 If you say yes to this option, support will be included for the
999 built-in I2C interface on the Qualcomm SoCs.
1001 This driver can also be built as a module. If so, the module
1002 will be called i2c-qup.
1005 tristate "Renesas RIIC adapter"
1006 depends on ARCH_RENESAS || COMPILE_TEST
1008 If you say yes to this option, support will be included for the
1009 Renesas RIIC I2C interface.
1011 This driver can also be built as a module. If so, the module
1012 will be called i2c-riic.
1015 tristate "Rockchip RK3xxx I2C adapter"
1016 depends on OF && COMMON_CLK
1018 Say Y here to include support for the I2C adapter in Rockchip RK3xxx
1021 This driver can also be built as a module. If so, the module will
1025 tristate "Renesas RZ/V2M adapter"
1026 depends on ARCH_RENESAS || COMPILE_TEST
1028 If you say yes to this option, support will be included for the
1029 Renesas RZ/V2M I2C interface.
1031 This driver can also be built as a module. If so, the module
1032 will be called i2c-rzv2m.
1035 tristate "S3C/Exynos I2C Driver"
1036 depends on ARCH_EXYNOS || ARCH_S3C64XX || ARCH_S5PV210 || COMPILE_TEST
1038 Say Y here to include support for I2C controller in the
1039 Samsung SoCs (S3C, S5Pv210, Exynos).
1042 tristate "Renesas SH7760 I2C Controller"
1043 depends on CPU_SUBTYPE_SH7760
1045 This driver supports the 2 I2C interfaces on the Renesas SH7760.
1047 This driver can also be built as a module. If so, the module
1048 will be called i2c-sh7760.
1050 config I2C_SH_MOBILE
1051 tristate "SuperH Mobile I2C Controller"
1052 depends on ARCH_SHMOBILE || ARCH_RENESAS || COMPILE_TEST
1054 If you say yes to this option, support will be included for the
1055 built-in I2C interface on the Renesas SH-Mobile processor.
1057 This driver can also be built as a module. If so, the module
1058 will be called i2c-sh_mobile.
1061 tristate "Simtec Generic I2C interface"
1064 If you say yes to this option, support will be included for
1065 the Simtec Generic I2C interface. This driver is for the
1066 simple I2C bus used on newer Simtec products for general
1067 I2C, such as DDC on the Simtec BBD2016A.
1069 This driver can also be built as a module. If so, the module
1070 will be called i2c-simtec.
1073 tristate "Spreadtrum I2C interface"
1074 depends on I2C=y && (ARCH_SPRD || COMPILE_TEST)
1075 depends on COMMON_CLK
1077 If you say yes to this option, support will be included for the
1078 Spreadtrum I2C interface.
1081 tristate "STMicroelectronics SSC I2C support"
1082 depends on ARCH_STI || COMPILE_TEST
1084 Enable this option to add support for STMicroelectronics SoCs
1085 hardware SSC (Synchronous Serial Controller) as an I2C controller.
1087 This driver can also be built as module. If so, the module
1088 will be called i2c-st.
1091 tristate "STMicroelectronics STM32F4 I2C support"
1092 depends on ARCH_STM32 || COMPILE_TEST
1094 Enable this option to add support for STM32 I2C controller embedded
1097 This driver can also be built as module. If so, the module
1098 will be called i2c-stm32f4.
1101 tristate "STMicroelectronics STM32F7 I2C support"
1102 depends on ARCH_STM32 || COMPILE_TEST
1106 Enable this option to add support for STM32 I2C controller embedded
1109 This driver can also be built as module. If so, the module
1110 will be called i2c-stm32f7.
1112 config I2C_SUN6I_P2WI
1113 tristate "Allwinner sun6i internal P2WI controller"
1114 depends on RESET_CONTROLLER
1115 depends on MACH_SUN6I || COMPILE_TEST
1117 If you say yes to this option, support will be included for the
1118 P2WI (Push/Pull 2 Wire Interface) controller embedded in some sunxi
1120 The P2WI looks like an SMBus controller (which supports only byte
1121 accesses), except that it only supports one slave device.
1122 This interface is used to connect to specific PMIC devices (like the
1125 config I2C_SYNQUACER
1126 tristate "Socionext SynQuacer I2C controller"
1127 depends on ARCH_SYNQUACER || COMPILE_TEST
1129 Say Y here to include support for the I2C controller used in some
1130 Fujitsu and Socionext SoCs.
1132 This driver can also be built as a module. If so, the module
1133 will be called i2c-synquacer.
1136 tristate "NVIDIA Tegra internal I2C controller"
1137 depends on ARCH_TEGRA || (COMPILE_TEST && (ARC || ARM || ARM64 || M68K || RISCV || SUPERH || SPARC))
1138 # COMPILE_TEST needs architectures with readsX()/writesX() primitives
1140 If you say yes to this option, support will be included for the
1141 I2C controller embedded in NVIDIA Tegra SOCs
1143 config I2C_TEGRA_BPMP
1144 tristate "NVIDIA Tegra BPMP I2C controller"
1145 depends on TEGRA_BPMP || COMPILE_TEST
1146 default y if TEGRA_BPMP
1148 If you say yes to this option, support will be included for the I2C
1149 controller embedded in NVIDIA Tegra SoCs accessed via the BPMP.
1151 This I2C driver is a 'virtual' I2C driver. The real driver is part
1152 of the BPMP firmware, and this driver merely communicates with that
1156 tristate "UniPhier FIFO-less I2C controller"
1157 depends on ARCH_UNIPHIER || COMPILE_TEST
1159 If you say yes to this option, support will be included for
1160 the UniPhier FIFO-less I2C interface embedded in PH1-LD4, PH1-sLD8,
1161 or older UniPhier SoCs.
1163 config I2C_UNIPHIER_F
1164 tristate "UniPhier FIFO-builtin I2C controller"
1165 depends on ARCH_UNIPHIER || COMPILE_TEST
1167 If you say yes to this option, support will be included for
1168 the UniPhier FIFO-builtin I2C interface embedded in PH1-Pro4,
1169 PH1-Pro5, or newer UniPhier SoCs.
1171 config I2C_VERSATILE
1172 tristate "ARM Versatile/Realview I2C bus support"
1173 depends on ARCH_MPS2 || ARCH_VERSATILE || ARCH_REALVIEW || ARCH_VEXPRESS || COMPILE_TEST
1176 Say yes if you want to support the I2C serial bus on ARMs Versatile
1179 This driver can also be built as a module. If so, the module
1180 will be called i2c-versatile.
1183 tristate "Wondermedia WM8xxx SoC I2C bus support"
1184 depends on ARCH_VT8500 || COMPILE_TEST
1186 Say yes if you want to support the I2C bus on Wondermedia 8xxx-series
1189 This driver can also be built as a module. If so, the module will be
1193 tristate "Cavium OCTEON I2C bus support"
1194 depends on CAVIUM_OCTEON_SOC
1196 Say yes if you want to support the I2C serial bus on Cavium
1199 This driver can also be built as a module. If so, the module
1200 will be called i2c-octeon.
1203 tristate "Cavium ThunderX I2C bus support"
1204 depends on 64BIT && PCI && (ARM64 || COMPILE_TEST)
1207 Say yes if you want to support the I2C serial bus on Cavium
1210 This driver can also be built as a module. If so, the module
1211 will be called i2c-thunderx.
1214 tristate "Xilinx I2C Controller"
1215 depends on HAS_IOMEM
1217 If you say yes to this option, support will be included for the
1218 Xilinx I2C controller.
1220 This driver can also be built as a module. If so, the module
1221 will be called xilinx_i2c.
1224 tristate "Cavium ThunderX2 I2C support"
1225 depends on ARCH_THUNDER2 || COMPILE_TEST
1227 This driver enables support for the on-chip I2C interface of
1228 the Cavium ThunderX2 processors. (Originally on Netlogic XLP SoCs.)
1230 This driver can also be built as a module. If so, the module will
1231 be called i2c-xlp9xx.
1234 tristate "Renesas R-Car I2C Controller"
1235 depends on ARCH_RENESAS || COMPILE_TEST
1238 select RESET_CONTROLLER if ARCH_RCAR_GEN3
1240 If you say yes to this option, support will be included for the
1241 R-Car I2C controller.
1243 This driver can also be built as a module. If so, the module
1244 will be called i2c-rcar.
1246 comment "External I2C/SMBus adapter drivers"
1248 config I2C_DIOLAN_U2C
1249 tristate "Diolan U2C-12 USB adapter"
1252 If you say yes to this option, support will be included for Diolan
1253 U2C-12, a USB to I2C interface.
1255 This driver can also be built as a module. If so, the module
1256 will be called i2c-diolan-u2c.
1259 tristate "Diolan DLN-2 USB I2C adapter"
1262 If you say yes to this option, support will be included for Diolan
1263 DLN2, a USB to I2C interface.
1265 This driver can also be built as a module. If so, the module
1266 will be called i2c-dln2.
1269 tristate "Silicon Labs CP2615 USB sound card and I2C adapter"
1272 If you say yes to this option, support will be included for Silicon
1273 Labs CP2615's I2C interface.
1275 This driver can also be built as a module. If so, the module
1276 will be called i2c-cp2615.
1279 tristate "Parallel port adapter"
1284 This supports parallel port I2C adapters such as the ones made by
1285 Philips or Velleman, Analog Devices evaluation boards, and more.
1286 Basically any adapter using the parallel port as an I2C bus with
1287 no extra chipset is supported by this driver, or could be. Please
1288 read the file Documentation/i2c/busses/i2c-parport.rst for details.
1290 This support is also available as a module. If so, the module
1291 will be called i2c-parport.
1294 tristate "PCI1XXXX I2C Host Adapter"
1297 If you say yes to this option, support will be included for
1298 Microchip PCI1XXXX's I2C interface.
1300 This driver can also be built as a module. If so, the module will
1301 be called i2c-mchp-pci1xxxx.
1303 config I2C_ROBOTFUZZ_OSIF
1304 tristate "RobotFuzz Open Source InterFace USB adapter"
1307 If you say yes to this option, support will be included for the
1308 RobotFuzz Open Source InterFace USB to I2C interface.
1310 This driver can also be built as a module. If so, the module
1311 will be called i2c-osif.
1314 tristate "TAOS evaluation module"
1317 select SERIO_SERPORT
1319 This supports TAOS evaluation modules on serial port. In order to
1320 use this driver, you will need the inputattach tool, which is part
1321 of the input-utils package.
1325 This support is also available as a module. If so, the module
1326 will be called i2c-taos-evm.
1329 tristate "Tiny-USB adapter"
1332 If you say yes to this option, support will be included for the
1333 i2c-tiny-usb, a simple do-it-yourself USB to I2C interface. See
1334 http://www.harbaum.org/till/i2c_tiny_usb for hardware details.
1336 This driver can also be built as a module. If so, the module
1337 will be called i2c-tiny-usb.
1339 config I2C_VIPERBOARD
1340 tristate "Viperboard I2C master support"
1341 depends on MFD_VIPERBOARD && USB
1343 Say yes here to access the I2C part of the Nano River
1344 Technologies Viperboard as I2C master.
1345 See viperboard API specification and Nano
1346 River Tech's viperboard.h for detailed meaning
1347 of the module parameters.
1349 comment "Other I2C/SMBus bus drivers"
1352 tristate "Acorn IOC/IOMD I2C bus support"
1353 depends on ARCH_ACORN
1357 Say yes if you want to support the I2C bus on Acorn platforms.
1359 If you don't know, say Y.
1362 tristate "Elektor ISA card"
1363 depends on ISA && HAS_IOPORT_MAP && BROKEN_ON_SMP
1366 This supports the PCF8584 ISA bus I2C adapter. Say Y if you own
1369 This support is also available as a module. If so, the module
1370 will be called i2c-elektor.
1373 tristate "ICY Zorro card"
1377 This supports the PCF8584 Zorro bus I2C adapter, known as ICY.
1378 Say Y if you own such an adapter.
1380 This support is also available as a module. If so, the module
1381 will be called i2c-icy.
1383 If you have a 2019 edition board with an LTC2990 sensor at address
1384 0x4c, loading the module 'ltc2990' is sufficient to enable it.
1387 tristate "Mellanox I2C driver"
1388 depends on X86_64 || (ARM64 && ACPI) || COMPILE_TEST
1390 This exposes the Mellanox platform I2C busses to the linux I2C layer
1391 for X86 and ARM64/ACPI based systems.
1392 Controller is implemented as CPLD logic.
1394 This driver can also be built as a module. If so, the module will be
1395 called as i2c-mlxcpld.
1398 tristate "PCA9564/PCA9665 on an ISA bus"
1402 This driver supports ISA boards using the Philips PCA9564/PCA9665
1403 parallel bus to I2C bus controller.
1405 This driver can also be built as a module. If so, the module
1406 will be called i2c-pca-isa.
1408 This device is almost undetectable and using this driver on a
1409 system which doesn't have this device will result in long
1410 delays when I2C/SMBus chip drivers are loaded (e.g. at boot
1411 time). If unsure, say N.
1414 tristate "SiByte SMBus interface"
1415 depends on SIBYTE_SB1xxx_SOC
1417 Supports the SiByte SOC on-chip I2C interfaces (2 channels).
1419 config I2C_CROS_EC_TUNNEL
1420 tristate "ChromeOS EC tunnel I2C bus"
1423 If you say yes here you get an I2C bus that will tunnel i2c commands
1424 through to the other side of the ChromeOS EC to the i2c bus
1425 connected there. This will work whatever the interface used to
1426 talk to the EC (SPI, I2C or LPC).
1428 config I2C_XGENE_SLIMPRO
1429 tristate "APM X-Gene SoC I2C SLIMpro devices support"
1430 depends on ARCH_XGENE && MAILBOX
1432 Enable I2C bus access using the APM X-Gene SoC SLIMpro
1433 co-processor. The I2C device access the I2C bus via the X-Gene
1434 to SLIMpro (On chip coprocessor) mailbox mechanism.
1438 tristate "Geode ACCESS.bus support"
1439 depends on X86_32 && PCI
1441 Enable the use of the ACCESS.bus controllers on the Geode SCx200 and
1442 SC1100 processors and the CS5535 and CS5536 Geode companion devices.
1444 If you don't know what to do here, say N.
1446 This support is also available as a module. If so, the module
1447 will be called scx200_acb.
1450 tristate "IBM OPAL I2C driver"
1451 depends on PPC_POWERNV
1454 This exposes the PowerNV platform i2c busses to the linux i2c layer,
1455 the driver is based on the OPAL interfaces.
1457 This driver can also be built as a module. If so, the module will be
1461 tristate "FSI I2C driver"
1464 Driver for FSI bus attached I2C masters. These are I2C masters that
1465 are connected to the system over an FSI bus, instead of the more
1466 common PCI or MMIO interface.
1468 This driver can also be built as a module. If so, the module will be
1472 tristate "Virtio I2C Adapter"
1475 If you say yes to this option, support will be included for the virtio
1476 I2C adapter driver. The hardware can be emulated by any device model
1477 software according to the virtio protocol.
1479 This driver can also be built as a module. If so, the module
1480 will be called i2c-virtio.