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)
162 This driver can also be built as a module. If so, the module
163 will be called i2c-i801.
166 tristate "Intel SCH SMBus 1.0"
170 Say Y here if you want to use SMBus controller on the Intel SCH
173 This driver can also be built as a module. If so, the module
174 will be called i2c-isch.
177 tristate "Intel iSMT SMBus Controller"
178 depends on PCI && X86
180 If you say yes to this option, support will be included for the Intel
181 iSMT SMBus host controller interface.
183 This driver can also be built as a module. If so, the module will be
187 tristate "Intel PIIX4 and compatible (ATI/AMD/Serverworks/Broadcom/SMSC)"
190 If you say yes to this option, support will be included for the Intel
191 PIIX4 family of mainboard I2C interfaces. Specifically, the following
192 versions of the chipset are supported (note that Serverworks is part
213 Some AMD chipsets contain two PIIX4-compatible SMBus
214 controllers. This driver will attempt to use both controllers
215 on the SB700/SP5100, if they have been initialized by the BIOS.
217 This driver can also be built as a module. If so, the module
218 will be called i2c-piix4.
221 tristate "Intel Cherry Trail Whiskey Cove PMIC smbus controller"
222 depends on INTEL_SOC_PMIC_CHTWC
224 If you say yes to this option, support will be included for the
225 SMBus controller found in the Intel Cherry Trail Whiskey Cove PMIC
226 found on some Intel Cherry Trail systems.
228 Note this controller is hooked up to a TI bq24292i charger-IC,
229 combined with a FUSB302 Type-C port-controller as such it is advised
230 to also select CONFIG_TYPEC_FUSB302=m.
233 tristate "Nvidia nForce2, nForce3 and nForce4"
236 If you say yes to this option, support will be included for the Nvidia
237 nForce2, nForce3 and nForce4 families of mainboard I2C interfaces.
239 This driver can also be built as a module. If so, the module
240 will be called i2c-nforce2.
242 config I2C_NFORCE2_S4985
243 tristate "SMBus multiplexing on the Tyan S4985"
244 depends on I2C_NFORCE2 && X86
246 Enabling this option will add specific SMBus support for the Tyan
247 S4985 motherboard. On this 4-CPU board, the SMBus is multiplexed
248 over 4 different channels, where the various memory module EEPROMs
249 live. Saying yes here will give you access to these in addition
252 This driver can also be built as a module. If so, the module
253 will be called i2c-nforce2-s4985.
255 config I2C_NVIDIA_GPU
256 tristate "NVIDIA GPU I2C controller"
260 If you say yes to this option, support will be included for the
261 NVIDIA GPU I2C controller which is used to communicate with the GPU's
262 Type-C controller. This driver can also be built as a module called
269 If you say yes to this option, support will be included for the
270 SiS5595 SMBus (a subset of I2C) interface.
272 This driver can also be built as a module. If so, the module
273 will be called i2c-sis5595.
276 tristate "SiS 630/730/964"
279 If you say yes to this option, support will be included for the
280 SiS630, SiS730 and SiS964 SMBus (a subset of I2C) interface.
282 This driver can also be built as a module. If so, the module
283 will be called i2c-sis630.
289 If you say yes to this option, support will be included for the SiS
290 96x SMBus (a subset of I2C) interfaces. Specifically, the following
291 chipsets are supported:
300 This driver can also be built as a module. If so, the module
301 will be called i2c-sis96x.
304 tristate "VIA VT82C586B"
308 If you say yes to this option, support will be included for the VIA
309 82C586B I2C interface
311 This driver can also be built as a module. If so, the module
312 will be called i2c-via.
315 tristate "VIA VT82C596/82C686/82xx and CX700/VX8xx/VX900"
318 If you say yes to this option, support will be included for the VIA
319 VT82C596 and later SMBus interface. Specifically, the following
320 chipsets are supported:
333 This driver can also be built as a module. If so, the module
334 will be called i2c-viapro.
338 comment "ACPI drivers"
341 tristate "SMBus Control Method Interface"
343 This driver supports the SMBus Control Method Interface. It needs the
344 BIOS to declare ACPI control methods as described in the SMBus Control
345 Method Interface specification.
347 To compile this driver as a module, choose M here:
348 the module will be called i2c-scmi.
352 comment "Mac SMBus host controller drivers"
353 depends on PPC_CHRP || PPC_PMAC
356 tristate "CHRP Apple Hydra Mac I/O I2C interface"
357 depends on PCI && PPC_CHRP
360 This supports the use of the I2C interface in the Apple Hydra Mac
361 I/O chip on some CHRP machines (e.g. the LongTrail). Say Y if you
364 This support is also available as a module. If so, the module
365 will be called i2c-hydra.
368 tristate "Powermac I2C interface"
372 This exposes the various PowerMac i2c interfaces to the linux i2c
373 layer and to userland. It is used by various drivers on the PowerMac
374 platform, and should generally be enabled.
376 This support is also available as a module. If so, the module
377 will be called i2c-powermac.
379 comment "I2C system bus drivers (mostly embedded / system-on-chip)"
382 tristate "Altera Soft IP I2C"
383 depends on ARCH_INTEL_SOCFPGA || NIOS2 || COMPILE_TEST
386 If you say yes to this option, support will be included for the
387 Altera Soft IP I2C interfaces on SoCFPGA and Nios2 architectures.
389 This driver can also be built as a module. If so, the module
390 will be called i2c-altera.
393 tristate "Aspeed I2C Controller"
394 depends on ARCH_ASPEED || COMPILE_TEST
396 If you say yes to this option, support will be included for the
397 Aspeed I2C controller.
399 This driver can also be built as a module. If so, the module
400 will be called i2c-aspeed.
403 tristate "Atmel AT91 I2C Two-Wire interface (TWI)"
404 depends on ARCH_AT91 || COMPILE_TEST
406 This supports the use of the I2C interface on Atmel AT91
409 A serious problem is that there is no documented way to issue
410 repeated START conditions for more than two messages, as needed
411 to support combined I2C messages. Use the i2c-gpio driver
412 unless your system can cope with this limitation.
414 Caution! at91rm9200, at91sam9261, at91sam9260, at91sam9263 devices
415 don't have clock stretching in transmission mode. For that reason,
416 you can encounter underrun issues causing premature stop sendings if
417 the latency to fill the transmission register is too long. If you
418 are facing this situation, use the i2c-gpio driver.
420 config I2C_AT91_SLAVE_EXPERIMENTAL
421 tristate "Microchip AT91 I2C experimental slave mode"
425 If you say yes to this option, support for the slave mode will be
426 added. Caution: do not use it for production. This feature has not
427 been tested in a heavy way, help wanted.
428 There are known bugs:
429 - It can hang, on a SAMA5D4, after several transfers.
430 - There are some mismtaches with a SAMA5D4 as slave and a SAMA5D2 as
434 tristate "Au1550/Au1200/Au1300 SMBus interface"
435 depends on MIPS_ALCHEMY
437 If you say yes to this option, support will be included for the
438 Au1550/Au1200/Au1300 SMBus interface.
440 This driver can also be built as a module. If so, the module
441 will be called i2c-au1550.
444 tristate "Axxia I2C controller"
445 depends on ARCH_AXXIA || COMPILE_TEST
449 Say yes if you want to support the I2C bus on Axxia platforms.
451 Please note that this controller is limited to transfers of maximum
452 255 bytes in length. Any attempt to to a larger transfer will return
456 tristate "Broadcom BCM2835 I2C controller"
457 depends on ARCH_BCM2835 || ARCH_BRCMSTB || COMPILE_TEST
458 depends on COMMON_CLK
460 If you say yes to this option, support will be included for the
461 BCM2835 I2C controller.
463 If you don't know what to do here, say N.
465 This support is also available as a module. If so, the module
466 will be called i2c-bcm2835.
469 tristate "Broadcom iProc I2C controller"
470 depends on ARCH_BCM_IPROC || COMPILE_TEST
471 default ARCH_BCM_IPROC
474 If you say yes to this option, support will be included for the
475 Broadcom iProc I2C controller.
477 If you don't know what to do here, say N.
480 tristate "BCM Kona I2C adapter"
481 depends on ARCH_BCM_MOBILE || COMPILE_TEST
482 default y if ARCH_BCM_MOBILE
484 If you say yes to this option, support will be included for the
485 I2C interface on the Broadcom Kona family of processors.
487 If you do not need KONA I2C interface, say N.
490 tristate "BRCM Settop/DSL I2C controller"
491 depends on ARCH_BCM2835 || ARCH_BCMBCA || ARCH_BRCMSTB || \
492 BMIPS_GENERIC || COMPILE_TEST
495 If you say yes to this option, support will be included for the
496 I2C interface on the Broadcom Settop/DSL SoCs.
498 If you do not need I2C interface, say N.
501 tristate "Cadence I2C Controller"
502 depends on ARCH_ZYNQ || ARM64 || XTENSA || COMPILE_TEST
504 Say yes here to select Cadence I2C Host Controller. This controller is
505 e.g. used by Xilinx Zynq.
508 tristate "CBUS I2C driver"
509 depends on GPIOLIB || COMPILE_TEST
511 Support for CBUS access using I2C API. Mostly relevant for Nokia
512 Internet Tablets (770, N800 and N810).
514 This driver can also be built as a module. If so, the module
515 will be called i2c-cbus-gpio.
518 tristate "Freescale CPM1 or CPM2 (MPC8xx/826x)"
519 depends on CPM1 || CPM2
521 This supports the use of the I2C interface on Freescale
522 processors with CPM1 or CPM2.
524 This driver can also be built as a module. If so, the module
525 will be called i2c-cpm.
528 tristate "DaVinci I2C driver"
529 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
531 Support for TI DaVinci I2C controller driver.
533 This driver can also be built as a module. If so, the module
534 will be called i2c-davinci.
536 Please note that this driver might be needed to bring up other
537 devices such as DaVinci NIC.
538 For details please see http://www.ti.com/davinci
540 config I2C_DESIGNWARE_CORE
544 config I2C_DESIGNWARE_SLAVE
545 bool "Synopsys DesignWare Slave"
546 depends on I2C_DESIGNWARE_CORE
549 If you say yes to this option, support will be included for the
550 Synopsys DesignWare I2C slave adapter.
552 This is not a standalone module, this module compiles together with
555 config I2C_DESIGNWARE_PLATFORM
556 tristate "Synopsys DesignWare Platform"
557 depends on (ACPI && COMMON_CLK) || !ACPI
558 select I2C_DESIGNWARE_CORE
559 select MFD_SYSCON if MIPS_BAIKAL_T1
561 If you say yes to this option, support will be included for the
562 Synopsys DesignWare I2C adapter.
564 This driver can also be built as a module. If so, the module
565 will be called i2c-designware-platform.
567 config I2C_DESIGNWARE_AMDPSP
568 bool "AMD PSP I2C semaphore support"
570 depends on CRYPTO_DEV_SP_PSP
572 depends on I2C_DESIGNWARE_PLATFORM
573 depends on (I2C_DESIGNWARE_PLATFORM=y && CRYPTO_DEV_CCP_DD=y) || \
574 (I2C_DESIGNWARE_PLATFORM=m && CRYPTO_DEV_CCP_DD)
576 This driver enables managed host access to the selected I2C bus shared
577 between AMD CPU and AMD PSP.
579 You should say Y if running on an AMD system equipped with the PSP.
581 config I2C_DESIGNWARE_BAYTRAIL
582 bool "Intel Baytrail I2C semaphore support"
584 depends on I2C_DESIGNWARE_PLATFORM
585 depends on (I2C_DESIGNWARE_PLATFORM=m && IOSF_MBI) || \
586 (I2C_DESIGNWARE_PLATFORM=y && IOSF_MBI=y)
588 This driver enables managed host access to the PMIC I2C bus on select
589 Intel BayTrail platforms using the X-Powers AXP288 PMIC. It allows
590 the host to request uninterrupted access to the PMIC's I2C bus from
591 the platform firmware controlling it. You should say Y if running on
592 a BayTrail system using the AXP288.
594 config I2C_DESIGNWARE_PCI
595 tristate "Synopsys DesignWare PCI"
597 select I2C_DESIGNWARE_CORE
600 If you say yes to this option, support will be included for the
601 Synopsys DesignWare I2C adapter. Only master mode is supported.
603 This driver can also be built as a module. If so, the module
604 will be called i2c-designware-pci.
607 tristate "Conexant Digicolor I2C driver"
608 depends on ARCH_DIGICOLOR || COMPILE_TEST
610 Support for Conexant Digicolor SoCs (CX92755) I2C controller driver.
612 This driver can also be built as a module. If so, the module
613 will be called i2c-digicolor.
616 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) I2C"
617 depends on PCI && (X86_32 || MIPS || COMPILE_TEST)
619 This driver is for PCH(Platform controller Hub) I2C of EG20T which
620 is an IOH(Input/Output Hub) for x86 embedded processor.
621 This driver can access PCH I2C bus device.
623 This driver also can be used for LAPIS Semiconductor IOH(Input/
624 Output Hub), ML7213, ML7223 and ML7831.
625 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
626 for MP(Media Phone) use and ML7831 IOH is for general purpose use.
627 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
628 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
631 tristate "EMMA Mobile series I2C adapter"
635 If you say yes to this option, support will be included for the
636 I2C interface on the Renesas Electronics EM/EV family of processors.
639 tristate "Exynos high-speed I2C driver"
641 depends on ARCH_EXYNOS || COMPILE_TEST
642 default y if ARCH_EXYNOS
644 High-speed I2C controller on Samsung Exynos5 and newer Samsung SoCs:
645 Exynos5250, Exynos5260, Exynos5410, Exynos542x, Exynos5800,
646 Exynos5433, Exynos7, Exynos850 and ExynosAutoV9.
647 Choose Y here only if you build for such Samsung SoC.
650 tristate "GPIO-based bitbanging I2C"
651 depends on GPIOLIB || COMPILE_TEST
654 This is a very simple bitbanging I2C driver utilizing the
655 arch-neutral GPIO API to control the SCL and SDA lines.
657 config I2C_GPIO_FAULT_INJECTOR
658 bool "GPIO-based fault injector"
661 This adds some functionality to the i2c-gpio driver which can inject
662 faults to an I2C bus, so another bus master can be stress-tested.
663 This is for debugging. If unsure, say 'no'.
666 tristate "GXP I2C Interface"
667 depends on ARCH_HPE_GXP || COMPILE_TEST
669 This enables support for GXP I2C interface. The I2C engines can be
670 either I2C master or I2C slaves.
672 config I2C_HIGHLANDER
673 tristate "Highlander FPGA SMBus interface"
674 depends on SH_HIGHLANDER || COMPILE_TEST
676 If you say yes to this option, support will be included for
677 the SMBus interface located in the FPGA on various Highlander
678 boards, particularly the R0P7780LC0011RL and R0P7785LC0011RL
679 FPGAs. This is wholly unrelated to the SoC I2C.
681 This driver can also be built as a module. If so, the module
682 will be called i2c-highlander.
685 tristate "HiSilicon I2C controller"
686 depends on ARM64 || COMPILE_TEST
688 Say Y here if you want to have Hisilicon I2C controller support
689 available on the Kunpeng Server.
691 This driver can also be built as a module. If so, the module
692 will be called i2c-hisi.
695 tristate "IBM PPC 4xx on-chip I2C interface"
698 Say Y here if you want to use IIC peripheral found on
699 embedded IBM PPC 4xx based systems.
701 This driver can also be built as a module. If so, the module
702 will be called i2c-ibm_iic.
705 tristate "Imagination Technologies I2C SCB Controller"
706 depends on MIPS || COMPILE_TEST
708 Say Y here if you want to use the IMG I2C SCB controller,
709 available on the TZ1090 and other IMG SoCs.
711 This driver can also be built as a module. If so, the module
712 will be called i2c-img-scb.
715 tristate "IMX I2C interface"
716 depends on ARCH_MXC || ARCH_LAYERSCAPE || COLDFIRE || COMPILE_TEST
719 Say Y here if you want to use the IIC bus controller on
720 the Freescale i.MX/MXC, Layerscape or ColdFire processors.
722 This driver can also be built as a module. If so, the module
723 will be called i2c-imx.
726 tristate "IMX Low Power I2C interface"
727 depends on ARCH_MXC || COMPILE_TEST
729 Say Y here if you want to use the Low Power IIC bus controller
730 on the Freescale i.MX processors.
732 This driver can also be built as a module. If so, the module
733 will be called i2c-imx-lpi2c.
736 tristate "Intel IXP4xx on-chip I2C interface"
737 depends on ARCH_IXP4XX || COMPILE_TEST
739 Say Y here if you want to use the IIC bus controller on
740 the Intel IXP4xx Network Processors.
742 This driver can also be built as a module. If so, the module
743 will be called i2c-iop3xx.
746 tristate "JZ4780 I2C controller interface support"
747 depends on MIPS || COMPILE_TEST
749 If you say yes to this option, support will be included for the
750 Ingenic JZ4780 I2C controller.
752 If you don't know what to do here, say N.
755 tristate "Kontron COM I2C Controller"
756 depends on MFD_KEMPLD
758 This enables support for the I2C bus interface on some Kontron ETX
759 and COMexpress (ETXexpress) modules.
761 This driver can also be built as a module. If so, the module
762 will be called i2c-kempld.
765 tristate "I2C bus support for NXP LPC2K/LPC178x/18xx/43xx"
766 depends on OF && (ARCH_LPC18XX || COMPILE_TEST)
768 This driver supports the I2C interface found several NXP
769 devices including LPC2xxx, LPC178x/7x and LPC18xx/43xx.
771 This driver can also be built as a module. If so, the module
772 will be called i2c-lpc2k.
775 tristate "Loongson LS2X I2C adapter"
776 depends on MACH_LOONGSON64 || COMPILE_TEST
778 If you say yes to this option, support will be included for the
779 I2C interface on the Loongson-2K SoCs and Loongson LS7A bridge
782 This driver can also be built as a module. If so, the module
783 will be called i2c-ls2x.
786 tristate "Mellanox BlueField I2C controller"
787 depends on MELLANOX_PLATFORM && ARM64
791 Enabling this option will add I2C SMBus support for Mellanox BlueField
794 This driver can also be built as a module. If so, the module will be
797 This driver implements an I2C SMBus host controller and enables both
798 master and slave functions.
801 tristate "Amlogic Meson I2C controller"
802 depends on ARCH_MESON || COMPILE_TEST
803 depends on COMMON_CLK
805 If you say yes to this option, support will be included for the
806 I2C interface on the Amlogic Meson family of SoCs.
808 config I2C_MICROCHIP_CORE
809 tristate "Microchip FPGA I2C controller"
810 depends on ARCH_MICROCHIP_POLARFIRE || COMPILE_TEST
813 If you say yes to this option, support will be included for the
814 I2C interface on Microchip FPGAs.
816 This driver can also be built as a module. If so, the module will be
817 called i2c-microchip-core.
820 tristate "MPC107/824x/85xx/512x/52xx/83xx/86xx"
823 If you say yes to this option, support will be included for the
824 built-in I2C interface on the MPC107, Tsi107, MPC512x, MPC52xx,
825 MPC8240, MPC8245, MPC83xx, MPC85xx and MPC8641 family processors.
827 This driver can also be built as a module. If so, the module
828 will be called i2c-mpc.
831 tristate "MediaTek I2C adapter"
832 depends on ARCH_MEDIATEK || COMPILE_TEST
834 This selects the MediaTek(R) Integrated Inter Circuit bus driver
835 for MT65xx and MT81xx.
836 If you want to use MediaTek(R) I2C interface, say Y or M here.
840 tristate "MT7621/MT7628 I2C Controller"
841 depends on (RALINK && (SOC_MT7620 || SOC_MT7621)) || COMPILE_TEST
843 Say Y here to include support for I2C controller in the
844 MediaTek MT7621/MT7628 SoCs.
847 tristate "Marvell mv64xxx I2C Controller"
848 depends on PLAT_ORION || ARCH_SUNXI || ARCH_MVEBU || COMPILE_TEST
850 If you say yes to this option, support will be included for the
851 built-in I2C interface on the Marvell 64xxx line of host bridges.
852 This driver is also used for Allwinner SoCs I2C controllers.
854 This driver can also be built as a module. If so, the module
855 will be called i2c-mv64xxx.
858 tristate "Freescale i.MX28 I2C interface"
859 depends on SOC_IMX28 || COMPILE_TEST
862 Say Y here if you want to use the I2C bus controller on
863 the Freescale i.MX28 processors.
865 This driver can also be built as a module. If so, the module
866 will be called i2c-mxs.
869 tristate "ST-Ericsson Nomadik/Ux500 I2C Controller"
872 If you say yes to this option, support will be included for the
873 I2C interface from ST-Ericsson's Nomadik and Ux500 architectures,
874 as well as the STA2X11 PCIe I/O HUB.
877 tristate "Nuvoton I2C Controller"
878 depends on ARCH_NPCM || COMPILE_TEST
880 If you say yes to this option, support will be included for the
881 Nuvoton I2C controller, which is available on the NPCM BMC
883 Driver can also support slave mode (select I2C_SLAVE).
886 tristate "OpenCores I2C Controller"
888 If you say yes to this option, support will be included for the
889 OpenCores I2C controller. For details see
890 http://www.opencores.org/projects.cgi/web/i2c/overview
892 This driver can also be built as a module. If so, the module
893 will be called i2c-ocores.
896 tristate "OMAP I2C adapter"
897 depends on ARCH_OMAP || ARCH_K3 || COMPILE_TEST
898 default MACH_OMAP_OSK
900 If you say yes to this option, support will be included for the
901 I2C interface on the Texas Instruments OMAP1/2 family of processors.
902 Like OMAP1510/1610/1710/5912 and OMAP242x.
903 For details see http://www.ti.com/omap.
906 tristate "Actions Semiconductor Owl I2C Controller"
907 depends on ARCH_ACTIONS || COMPILE_TEST
909 Say Y here if you want to use the I2C bus controller on
910 the Actions Semiconductor Owl SoC's.
913 tristate "PA Semi SMBus interface"
914 depends on PPC_PASEMI && PCI
916 Supports the PA Semi PWRficient on-chip SMBus interfaces.
919 tristate "Apple SMBus platform driver"
920 depends on !I2C_PASEMI
921 depends on ARCH_APPLE || COMPILE_TEST
924 Say Y here if you want to use the I2C controller present on Apple
925 Silicon chips such as the M1.
927 This driver can also be built as a module. If so, the module
928 will be called i2c-apple.
930 config I2C_PCA_PLATFORM
931 tristate "PCA9564/PCA9665 as platform device"
934 This driver supports a memory mapped Philips PCA9564/PCA9665
935 parallel bus to I2C bus controller.
937 This driver can also be built as a module. If so, the module
938 will be called i2c-pca-platform.
941 tristate "I2C bus support for Philips PNX and NXP LPC targets"
942 depends on ARCH_LPC32XX || COMPILE_TEST
944 This driver supports the Philips IP3204 I2C IP block master and/or
947 This driver can also be built as a module. If so, the module
948 will be called i2c-pnx.
951 tristate "Intel PXA2XX I2C adapter"
952 depends on ARCH_PXA || ARCH_MMP || ARCH_MVEBU || (X86_32 && PCI && OF) || COMPILE_TEST
954 If you have devices in the PXA I2C bus, say yes to this option.
955 This driver can also be built as a module. If so, the module
956 will be called i2c-pxa.
959 def_bool I2C_PXA && X86_32 && PCI && OF
962 bool "Intel PXA2XX I2C Slave comms support"
963 depends on I2C_PXA && !X86_32
966 Support I2C slave mode communications on the PXA I2C bus. This
967 is necessary for systems where the PXA may be a target on the
971 tristate "Qualcomm Camera Control Interface"
972 depends on ARCH_QCOM || COMPILE_TEST
974 If you say yes to this option, support will be included for the
975 built-in camera control interface on the Qualcomm SoCs.
977 This driver can also be built as a module. If so, the module
978 will be called i2c-qcom-cci.
981 tristate "Qualcomm Technologies Inc.'s GENI based I2C controller"
982 depends on ARCH_QCOM || COMPILE_TEST
983 depends on QCOM_GENI_SE
985 This driver supports GENI serial engine based I2C controller in
986 master mode on the Qualcomm Technologies Inc.'s SoCs. If you say
987 yes to this option, support will be included for the built-in I2C
988 interface on the Qualcomm Technologies Inc.'s SoCs.
990 This driver can also be built as a module. If so, the module
991 will be called i2c-qcom-geni.
994 tristate "Qualcomm QUP based I2C controller"
995 depends on ARCH_QCOM || COMPILE_TEST
997 If you say yes to this option, support will be included for the
998 built-in I2C interface on the Qualcomm SoCs.
1000 This driver can also be built as a module. If so, the module
1001 will be called i2c-qup.
1004 tristate "Renesas RIIC adapter"
1005 depends on ARCH_RENESAS || COMPILE_TEST
1007 If you say yes to this option, support will be included for the
1008 Renesas RIIC I2C interface.
1010 This driver can also be built as a module. If so, the module
1011 will be called i2c-riic.
1014 tristate "Rockchip RK3xxx I2C adapter"
1015 depends on OF && COMMON_CLK
1017 Say Y here to include support for the I2C adapter in Rockchip RK3xxx
1020 This driver can also be built as a module. If so, the module will
1024 tristate "Renesas RZ/V2M adapter"
1025 depends on ARCH_RENESAS || COMPILE_TEST
1027 If you say yes to this option, support will be included for the
1028 Renesas RZ/V2M I2C interface.
1030 This driver can also be built as a module. If so, the module
1031 will be called i2c-rzv2m.
1034 tristate "S3C/Exynos I2C Driver"
1035 depends on ARCH_EXYNOS || ARCH_S3C64XX || ARCH_S5PV210 || COMPILE_TEST
1037 Say Y here to include support for I2C controller in the
1038 Samsung SoCs (S3C, S5Pv210, Exynos).
1041 tristate "Renesas SH7760 I2C Controller"
1042 depends on CPU_SUBTYPE_SH7760
1044 This driver supports the 2 I2C interfaces on the Renesas SH7760.
1046 This driver can also be built as a module. If so, the module
1047 will be called i2c-sh7760.
1049 config I2C_SH_MOBILE
1050 tristate "SuperH Mobile I2C Controller"
1051 depends on ARCH_SHMOBILE || ARCH_RENESAS || COMPILE_TEST
1053 If you say yes to this option, support will be included for the
1054 built-in I2C interface on the Renesas SH-Mobile processor.
1056 This driver can also be built as a module. If so, the module
1057 will be called i2c-sh_mobile.
1060 tristate "Simtec Generic I2C interface"
1063 If you say yes to this option, support will be included for
1064 the Simtec Generic I2C interface. This driver is for the
1065 simple I2C bus used on newer Simtec products for general
1066 I2C, such as DDC on the Simtec BBD2016A.
1068 This driver can also be built as a module. If so, the module
1069 will be called i2c-simtec.
1072 tristate "Spreadtrum I2C interface"
1073 depends on I2C=y && (ARCH_SPRD || COMPILE_TEST)
1074 depends on COMMON_CLK
1076 If you say yes to this option, support will be included for the
1077 Spreadtrum I2C interface.
1080 tristate "STMicroelectronics SSC I2C support"
1081 depends on ARCH_STI || COMPILE_TEST
1083 Enable this option to add support for STMicroelectronics SoCs
1084 hardware SSC (Synchronous Serial Controller) as an I2C controller.
1086 This driver can also be built as module. If so, the module
1087 will be called i2c-st.
1090 tristate "STMicroelectronics STM32F4 I2C support"
1091 depends on ARCH_STM32 || COMPILE_TEST
1093 Enable this option to add support for STM32 I2C controller embedded
1096 This driver can also be built as module. If so, the module
1097 will be called i2c-stm32f4.
1100 tristate "STMicroelectronics STM32F7 I2C support"
1101 depends on ARCH_STM32 || COMPILE_TEST
1105 Enable this option to add support for STM32 I2C controller embedded
1108 This driver can also be built as module. If so, the module
1109 will be called i2c-stm32f7.
1111 config I2C_SUN6I_P2WI
1112 tristate "Allwinner sun6i internal P2WI controller"
1113 depends on RESET_CONTROLLER
1114 depends on MACH_SUN6I || COMPILE_TEST
1116 If you say yes to this option, support will be included for the
1117 P2WI (Push/Pull 2 Wire Interface) controller embedded in some sunxi
1119 The P2WI looks like an SMBus controller (which supports only byte
1120 accesses), except that it only supports one slave device.
1121 This interface is used to connect to specific PMIC devices (like the
1124 config I2C_SYNQUACER
1125 tristate "Socionext SynQuacer I2C controller"
1126 depends on ARCH_SYNQUACER || COMPILE_TEST
1128 Say Y here to include support for the I2C controller used in some
1129 Fujitsu and Socionext SoCs.
1131 This driver can also be built as a module. If so, the module
1132 will be called i2c-synquacer.
1135 tristate "NVIDIA Tegra internal I2C controller"
1136 depends on ARCH_TEGRA || (COMPILE_TEST && (ARC || ARM || ARM64 || M68K || RISCV || SUPERH || SPARC))
1137 # COMPILE_TEST needs architectures with readsX()/writesX() primitives
1139 If you say yes to this option, support will be included for the
1140 I2C controller embedded in NVIDIA Tegra SOCs
1142 config I2C_TEGRA_BPMP
1143 tristate "NVIDIA Tegra BPMP I2C controller"
1144 depends on TEGRA_BPMP || COMPILE_TEST
1145 default y if TEGRA_BPMP
1147 If you say yes to this option, support will be included for the I2C
1148 controller embedded in NVIDIA Tegra SoCs accessed via the BPMP.
1150 This I2C driver is a 'virtual' I2C driver. The real driver is part
1151 of the BPMP firmware, and this driver merely communicates with that
1155 tristate "UniPhier FIFO-less I2C controller"
1156 depends on ARCH_UNIPHIER || COMPILE_TEST
1158 If you say yes to this option, support will be included for
1159 the UniPhier FIFO-less I2C interface embedded in PH1-LD4, PH1-sLD8,
1160 or older UniPhier SoCs.
1162 config I2C_UNIPHIER_F
1163 tristate "UniPhier FIFO-builtin I2C controller"
1164 depends on ARCH_UNIPHIER || COMPILE_TEST
1166 If you say yes to this option, support will be included for
1167 the UniPhier FIFO-builtin I2C interface embedded in PH1-Pro4,
1168 PH1-Pro5, or newer UniPhier SoCs.
1170 config I2C_VERSATILE
1171 tristate "ARM Versatile/Realview I2C bus support"
1172 depends on ARCH_MPS2 || ARCH_VERSATILE || ARCH_REALVIEW || ARCH_VEXPRESS || COMPILE_TEST
1175 Say yes if you want to support the I2C serial bus on ARMs Versatile
1178 This driver can also be built as a module. If so, the module
1179 will be called i2c-versatile.
1182 tristate "Wondermedia WM8xxx SoC I2C bus support"
1183 depends on ARCH_VT8500 || COMPILE_TEST
1185 Say yes if you want to support the I2C bus on Wondermedia 8xxx-series
1188 This driver can also be built as a module. If so, the module will be
1192 tristate "Cavium OCTEON I2C bus support"
1193 depends on CAVIUM_OCTEON_SOC
1195 Say yes if you want to support the I2C serial bus on Cavium
1198 This driver can also be built as a module. If so, the module
1199 will be called i2c-octeon.
1202 tristate "Cavium ThunderX I2C bus support"
1203 depends on 64BIT && PCI && (ARM64 || COMPILE_TEST)
1206 Say yes if you want to support the I2C serial bus on Cavium
1209 This driver can also be built as a module. If so, the module
1210 will be called i2c-thunderx.
1213 tristate "Xilinx I2C Controller"
1214 depends on HAS_IOMEM
1216 If you say yes to this option, support will be included for the
1217 Xilinx I2C controller.
1219 This driver can also be built as a module. If so, the module
1220 will be called xilinx_i2c.
1223 tristate "Cavium ThunderX2 I2C support"
1224 depends on ARCH_THUNDER2 || COMPILE_TEST
1226 This driver enables support for the on-chip I2C interface of
1227 the Cavium ThunderX2 processors. (Originally on Netlogic XLP SoCs.)
1229 This driver can also be built as a module. If so, the module will
1230 be called i2c-xlp9xx.
1233 tristate "Renesas R-Car I2C Controller"
1234 depends on ARCH_RENESAS || COMPILE_TEST
1237 select RESET_CONTROLLER if ARCH_RCAR_GEN3
1239 If you say yes to this option, support will be included for the
1240 R-Car I2C controller.
1242 This driver can also be built as a module. If so, the module
1243 will be called i2c-rcar.
1245 comment "External I2C/SMBus adapter drivers"
1247 config I2C_DIOLAN_U2C
1248 tristate "Diolan U2C-12 USB adapter"
1251 If you say yes to this option, support will be included for Diolan
1252 U2C-12, a USB to I2C interface.
1254 This driver can also be built as a module. If so, the module
1255 will be called i2c-diolan-u2c.
1258 tristate "Diolan DLN-2 USB I2C adapter"
1261 If you say yes to this option, support will be included for Diolan
1262 DLN2, a USB to I2C interface.
1264 This driver can also be built as a module. If so, the module
1265 will be called i2c-dln2.
1268 tristate "Silicon Labs CP2615 USB sound card and I2C adapter"
1271 If you say yes to this option, support will be included for Silicon
1272 Labs CP2615's I2C interface.
1274 This driver can also be built as a module. If so, the module
1275 will be called i2c-cp2615.
1278 tristate "Parallel port adapter"
1283 This supports parallel port I2C adapters such as the ones made by
1284 Philips or Velleman, Analog Devices evaluation boards, and more.
1285 Basically any adapter using the parallel port as an I2C bus with
1286 no extra chipset is supported by this driver, or could be. Please
1287 read the file Documentation/i2c/busses/i2c-parport.rst for details.
1289 This support is also available as a module. If so, the module
1290 will be called i2c-parport.
1293 tristate "PCI1XXXX I2C Host Adapter"
1296 If you say yes to this option, support will be included for
1297 Microchip PCI1XXXX's I2C interface.
1299 This driver can also be built as a module. If so, the module will
1300 be called i2c-mchp-pci1xxxx.
1302 config I2C_ROBOTFUZZ_OSIF
1303 tristate "RobotFuzz Open Source InterFace USB adapter"
1306 If you say yes to this option, support will be included for the
1307 RobotFuzz Open Source InterFace USB to I2C interface.
1309 This driver can also be built as a module. If so, the module
1310 will be called i2c-osif.
1313 tristate "TAOS evaluation module"
1316 select SERIO_SERPORT
1318 This supports TAOS evaluation modules on serial port. In order to
1319 use this driver, you will need the inputattach tool, which is part
1320 of the input-utils package.
1324 This support is also available as a module. If so, the module
1325 will be called i2c-taos-evm.
1328 tristate "Tiny-USB adapter"
1331 If you say yes to this option, support will be included for the
1332 i2c-tiny-usb, a simple do-it-yourself USB to I2C interface. See
1333 http://www.harbaum.org/till/i2c_tiny_usb for hardware details.
1335 This driver can also be built as a module. If so, the module
1336 will be called i2c-tiny-usb.
1338 config I2C_VIPERBOARD
1339 tristate "Viperboard I2C master support"
1340 depends on MFD_VIPERBOARD && USB
1342 Say yes here to access the I2C part of the Nano River
1343 Technologies Viperboard as I2C master.
1344 See viperboard API specification and Nano
1345 River Tech's viperboard.h for detailed meaning
1346 of the module parameters.
1348 comment "Other I2C/SMBus bus drivers"
1351 tristate "Acorn IOC/IOMD I2C bus support"
1352 depends on ARCH_ACORN
1356 Say yes if you want to support the I2C bus on Acorn platforms.
1358 If you don't know, say Y.
1361 tristate "Elektor ISA card"
1362 depends on ISA && HAS_IOPORT_MAP && BROKEN_ON_SMP
1365 This supports the PCF8584 ISA bus I2C adapter. Say Y if you own
1368 This support is also available as a module. If so, the module
1369 will be called i2c-elektor.
1372 tristate "ICY Zorro card"
1376 This supports the PCF8584 Zorro bus I2C adapter, known as ICY.
1377 Say Y if you own such an adapter.
1379 This support is also available as a module. If so, the module
1380 will be called i2c-icy.
1382 If you have a 2019 edition board with an LTC2990 sensor at address
1383 0x4c, loading the module 'ltc2990' is sufficient to enable it.
1386 tristate "Mellanox I2C driver"
1387 depends on X86_64 || COMPILE_TEST
1389 This exposes the Mellanox platform I2C busses to the linux I2C layer
1390 for X86 based systems.
1391 Controller is implemented as CPLD logic.
1393 This driver can also be built as a module. If so, the module will be
1394 called as i2c-mlxcpld.
1397 tristate "PCA9564/PCA9665 on an ISA bus"
1401 This driver supports ISA boards using the Philips PCA9564/PCA9665
1402 parallel bus to I2C bus controller.
1404 This driver can also be built as a module. If so, the module
1405 will be called i2c-pca-isa.
1407 This device is almost undetectable and using this driver on a
1408 system which doesn't have this device will result in long
1409 delays when I2C/SMBus chip drivers are loaded (e.g. at boot
1410 time). If unsure, say N.
1413 tristate "SiByte SMBus interface"
1414 depends on SIBYTE_SB1xxx_SOC
1416 Supports the SiByte SOC on-chip I2C interfaces (2 channels).
1418 config I2C_CROS_EC_TUNNEL
1419 tristate "ChromeOS EC tunnel I2C bus"
1422 If you say yes here you get an I2C bus that will tunnel i2c commands
1423 through to the other side of the ChromeOS EC to the i2c bus
1424 connected there. This will work whatever the interface used to
1425 talk to the EC (SPI, I2C or LPC).
1427 config I2C_XGENE_SLIMPRO
1428 tristate "APM X-Gene SoC I2C SLIMpro devices support"
1429 depends on ARCH_XGENE && MAILBOX
1431 Enable I2C bus access using the APM X-Gene SoC SLIMpro
1432 co-processor. The I2C device access the I2C bus via the X-Gene
1433 to SLIMpro (On chip coprocessor) mailbox mechanism.
1437 tristate "Geode ACCESS.bus support"
1438 depends on X86_32 && PCI
1440 Enable the use of the ACCESS.bus controllers on the Geode SCx200 and
1441 SC1100 processors and the CS5535 and CS5536 Geode companion devices.
1443 If you don't know what to do here, say N.
1445 This support is also available as a module. If so, the module
1446 will be called scx200_acb.
1449 tristate "IBM OPAL I2C driver"
1450 depends on PPC_POWERNV
1453 This exposes the PowerNV platform i2c busses to the linux i2c layer,
1454 the driver is based on the OPAL interfaces.
1456 This driver can also be built as a module. If so, the module will be
1460 tristate "FSI I2C driver"
1463 Driver for FSI bus attached I2C masters. These are I2C masters that
1464 are connected to the system over an FSI bus, instead of the more
1465 common PCI or MMIO interface.
1467 This driver can also be built as a module. If so, the module will be
1471 tristate "Virtio I2C Adapter"
1474 If you say yes to this option, support will be included for the virtio
1475 I2C adapter driver. The hardware can be emulated by any device model
1476 software according to the virtio protocol.
1478 This driver can also be built as a module. If so, the module
1479 will be called i2c-virtio.