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.
21 depends on PCI && HAS_IOPORT
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.
33 depends on PCI && HAS_IOPORT
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.
45 depends on PCI && HAS_IOPORT
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"
55 depends on PCI && HAS_IOPORT
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.
67 depends on PCI && HAS_IOPORT
69 If you say yes to this option, support will be included for the
70 second (SMBus 2.0) AMD 8111 mainboard I2C interface.
72 This driver can also be built as a module. If so, the module
73 will be called i2c-amd8111.
76 tristate "AMD MP2 PCIe"
77 depends on PCI && ACPI
79 If you say yes to this option, support will be included for the AMD
82 This driver can also be built as modules. If so, the modules will
83 be called i2c-amd-mp2-pci and i2c-amd-mp2-plat.
86 tristate "AMD ASF I2C Controller Support"
90 This option enables support for the AMD ASF (Alert Standard Format)
91 I2C controller. The AMD ASF controller is an SMBus controller with
92 built-in ASF functionality, allowing it to issue generic SMBus
93 packets and communicate with the DASH controller using MCTP over
96 If you have an AMD system with ASF support and want to enable this
97 functionality, say Y or M here. If unsure, say N.
99 To compile this driver as a module, choose M here: the module will
100 be called i2c_amd_asf_plat.
103 tristate "Hix5hd2 high-speed I2C driver"
104 depends on ARCH_HISI || ARCH_HIX5HD2 || COMPILE_TEST
106 Say Y here to include support for the high-speed I2C controller
107 used in HiSilicon hix5hd2 SoCs.
109 This driver can also be built as a module. If so, the module
110 will be called i2c-hix5hd2.
113 tristate "Intel 82801 (ICH/PCH)"
114 depends on PCI && HAS_IOPORT
116 select CHECK_SIGNATURE if X86 && DMI
119 If you say yes to this option, support will be included for the Intel
120 801 family of mainboard I2C interfaces. Specifically, the following
121 versions of the chipset are supported:
127 82801EB/ER (ICH5/ICH5R)
164 Meteor Lake (SOC and PCH)
169 This driver can also be built as a module. If so, the module
170 will be called i2c-i801.
174 depends on DMI && I2C_MUX_GPIO
175 depends on !(I2C_I801=y && I2C_MUX=m)
177 Optional support for multiplexed SMBUS on certain systems with
178 more than 8 memory slots.
181 tristate "Intel SCH SMBus 1.0"
182 depends on PCI && HAS_IOPORT
185 Say Y here if you want to use SMBus controller on the Intel SCH
188 This driver can also be built as a module. If so, the module
189 will be called i2c-isch.
192 tristate "Intel iSMT SMBus Controller"
193 depends on PCI && X86
195 If you say yes to this option, support will be included for the Intel
196 iSMT SMBus host controller interface.
198 This driver can also be built as a module. If so, the module will be
202 tristate "Intel PIIX4 and compatible (ATI/AMD/Serverworks/Broadcom/SMSC)"
203 depends on PCI && HAS_IOPORT
206 If you say yes to this option, support will be included for the Intel
207 PIIX4 family of mainboard I2C interfaces. Specifically, the following
208 versions of the chipset are supported (note that Serverworks is part
229 Some AMD chipsets contain two PIIX4-compatible SMBus
230 controllers. This driver will attempt to use both controllers
231 on the SB700/SP5100, if they have been initialized by the BIOS.
233 This driver can also be built as a module. If so, the module
234 will be called i2c-piix4.
237 tristate "Intel Cherry Trail Whiskey Cove PMIC smbus controller"
238 depends on INTEL_SOC_PMIC_CHTWC
240 If you say yes to this option, support will be included for the
241 SMBus controller found in the Intel Cherry Trail Whiskey Cove PMIC
242 found on some Intel Cherry Trail systems.
244 Note this controller is hooked up to a TI bq24292i charger-IC,
245 combined with a FUSB302 Type-C port-controller as such it is advised
246 to also select CONFIG_TYPEC_FUSB302=m.
249 tristate "Nvidia nForce2, nForce3 and nForce4"
250 depends on PCI && HAS_IOPORT
252 If you say yes to this option, support will be included for the Nvidia
253 nForce2, nForce3 and nForce4 families of mainboard I2C interfaces.
255 This driver can also be built as a module. If so, the module
256 will be called i2c-nforce2.
258 config I2C_NVIDIA_GPU
259 tristate "NVIDIA GPU I2C controller"
263 If you say yes to this option, support will be included for the
264 NVIDIA GPU I2C controller which is used to communicate with the GPU's
265 Type-C controller. This driver can also be built as a module called
270 depends on PCI && HAS_IOPORT
272 If you say yes to this option, support will be included for the
273 SiS5595 SMBus (a subset of I2C) interface.
275 This driver can also be built as a module. If so, the module
276 will be called i2c-sis5595.
279 tristate "SiS 630/730/964"
280 depends on PCI && HAS_IOPORT
282 If you say yes to this option, support will be included for the
283 SiS630, SiS730 and SiS964 SMBus (a subset of I2C) interface.
285 This driver can also be built as a module. If so, the module
286 will be called i2c-sis630.
290 depends on PCI && HAS_IOPORT
292 If you say yes to this option, support will be included for the SiS
293 96x SMBus (a subset of I2C) interfaces. Specifically, the following
294 chipsets are supported:
303 This driver can also be built as a module. If so, the module
304 will be called i2c-sis96x.
307 tristate "VIA VT82C586B"
308 depends on PCI && HAS_IOPORT
311 If you say yes to this option, support will be included for the VIA
312 82C586B I2C interface
314 This driver can also be built as a module. If so, the module
315 will be called i2c-via.
318 tristate "VIA VT82C596/82C686/82xx and CX700/VX8xx/VX900"
319 depends on PCI && HAS_IOPORT
321 If you say yes to this option, support will be included for the VIA
322 VT82C596 and later SMBus interface. Specifically, the following
323 chipsets are supported:
336 This driver can also be built as a module. If so, the module
337 will be called i2c-viapro.
342 tristate "Zhaoxin I2C Interface"
343 depends on PCI || COMPILE_TEST
345 If you say yes to this option, support will be included for the
346 ZHAOXIN I2C interface
348 This driver can also be built as a module. If so, the module
349 will be called i2c-zhaoxin.
351 comment "ACPI drivers"
354 tristate "SMBus Control Method Interface"
356 This driver supports the SMBus Control Method Interface. It needs the
357 BIOS to declare ACPI control methods as described in the SMBus Control
358 Method Interface specification.
360 To compile this driver as a module, choose M here:
361 the module will be called i2c-scmi.
365 comment "Mac SMBus host controller drivers"
366 depends on PPC_CHRP || PPC_PMAC
369 tristate "CHRP Apple Hydra Mac I/O I2C interface"
370 depends on PCI && PPC_CHRP
373 This supports the use of the I2C interface in the Apple Hydra Mac
374 I/O chip on some CHRP machines (e.g. the LongTrail). Say Y if you
377 This support is also available as a module. If so, the module
378 will be called i2c-hydra.
381 tristate "Powermac I2C interface"
385 This exposes the various PowerMac i2c interfaces to the linux i2c
386 layer and to userland. It is used by various drivers on the PowerMac
387 platform, and should generally be enabled.
389 This support is also available as a module. If so, the module
390 will be called i2c-powermac.
392 comment "I2C system bus drivers (mostly embedded / system-on-chip)"
395 tristate "Altera Soft IP I2C"
396 depends on ARCH_INTEL_SOCFPGA || NIOS2 || COMPILE_TEST
399 If you say yes to this option, support will be included for the
400 Altera Soft IP I2C interfaces on SoCFPGA and Nios2 architectures.
402 This driver can also be built as a module. If so, the module
403 will be called i2c-altera.
406 tristate "Aspeed I2C Controller"
407 depends on ARCH_ASPEED || COMPILE_TEST
409 If you say yes to this option, support will be included for the
410 Aspeed I2C controller.
412 This driver can also be built as a module. If so, the module
413 will be called i2c-aspeed.
416 tristate "Atmel AT91 I2C Two-Wire interface (TWI)"
417 depends on ARCH_AT91 || COMPILE_TEST
419 This supports the use of the I2C interface on Atmel AT91
422 A serious problem is that there is no documented way to issue
423 repeated START conditions for more than two messages, as needed
424 to support combined I2C messages. Use the i2c-gpio driver
425 unless your system can cope with this limitation.
427 Caution! at91rm9200, at91sam9261, at91sam9260, at91sam9263 devices
428 don't have clock stretching in transmission mode. For that reason,
429 you can encounter underrun issues causing premature stop sendings if
430 the latency to fill the transmission register is too long. If you
431 are facing this situation, use the i2c-gpio driver.
433 config I2C_AT91_SLAVE_EXPERIMENTAL
434 bool "Microchip AT91 I2C experimental slave mode"
438 If you say yes to this option, support for the slave mode will be
439 added. Caution: do not use it for production. This feature has not
440 been tested in a heavy way, help wanted.
441 There are known bugs:
442 - It can hang, on a SAMA5D4, after several transfers.
443 - There are some mismatches with a SAMA5D4 as slave and a SAMA5D2 as
447 tristate "Au1550/Au1200/Au1300 SMBus interface"
448 depends on MIPS_ALCHEMY
450 If you say yes to this option, support will be included for the
451 Au1550/Au1200/Au1300 SMBus interface.
453 This driver can also be built as a module. If so, the module
454 will be called i2c-au1550.
457 tristate "Axxia I2C controller"
458 depends on ARCH_AXXIA || COMPILE_TEST
462 Say yes if you want to support the I2C bus on Axxia platforms.
464 Please note that this controller is limited to transfers of maximum
465 255 bytes in length. Any attempt to to a larger transfer will return
469 tristate "Broadcom BCM2835 I2C controller"
470 depends on ARCH_BCM2835 || ARCH_BRCMSTB || COMPILE_TEST
471 depends on COMMON_CLK
473 If you say yes to this option, support will be included for the
474 BCM2835 I2C controller.
476 If you don't know what to do here, say N.
478 This support is also available as a module. If so, the module
479 will be called i2c-bcm2835.
482 tristate "Broadcom iProc I2C controller"
483 depends on ARCH_BCM_IPROC || COMPILE_TEST
484 default ARCH_BCM_IPROC
487 If you say yes to this option, support will be included for the
488 Broadcom iProc I2C controller.
490 If you don't know what to do here, say N.
493 tristate "BCM Kona I2C adapter"
494 depends on ARCH_BCM_MOBILE || COMPILE_TEST
495 default y if ARCH_BCM_MOBILE
497 If you say yes to this option, support will be included for the
498 I2C interface on the Broadcom Kona family of processors.
500 If you do not need KONA I2C interface, say N.
503 tristate "BRCM Settop/DSL I2C controller"
504 depends on ARCH_BCM2835 || ARCH_BCMBCA || ARCH_BRCMSTB || \
505 BMIPS_GENERIC || COMPILE_TEST
508 If you say yes to this option, support will be included for the
509 I2C interface on the Broadcom Settop/DSL SoCs.
511 If you do not need I2C interface, say N.
514 tristate "Cadence I2C Controller"
515 depends on ARCH_ZYNQ || ARM64 || XTENSA || RISCV || COMPILE_TEST
517 Say yes here to select Cadence I2C Host Controller. This controller is
518 e.g. used by Xilinx Zynq.
521 tristate "CBUS I2C driver"
522 depends on GPIOLIB || COMPILE_TEST
524 Support for CBUS access using I2C API. Mostly relevant for Nokia
525 Internet Tablets (770, N800 and N810).
527 This driver can also be built as a module. If so, the module
528 will be called i2c-cbus-gpio.
531 tristate "Congatec I2C Controller"
534 This driver supports the 2 I2C interfaces on the Congatec Board
537 This driver can also be built as a module. If so, the module will
538 be called i2c-cgbc.ko.
541 tristate "Freescale CPM1 or CPM2 (MPC8xx/826x)"
542 depends on CPM1 || CPM2
544 This supports the use of the I2C interface on Freescale
545 processors with CPM1 or CPM2.
547 This driver can also be built as a module. If so, the module
548 will be called i2c-cpm.
551 tristate "DaVinci I2C driver"
552 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
554 Support for TI DaVinci I2C controller driver.
556 This driver can also be built as a module. If so, the module
557 will be called i2c-davinci.
559 Please note that this driver might be needed to bring up other
560 devices such as DaVinci NIC.
561 For details please see http://www.ti.com/davinci
563 config I2C_DESIGNWARE_CORE
564 tristate "Synopsys DesignWare I2C adapter"
567 This option enables support for the Synopsys DesignWare I2C adapter.
568 This driver includes support for the I2C host on the Synopsys
569 Designware I2C adapter.
571 To compile the driver as a module, choose M here: the module will be
572 called i2c-designware-core.
574 if I2C_DESIGNWARE_CORE
576 config I2C_DESIGNWARE_SLAVE
577 bool "Synopsys DesignWare Slave"
580 If you say yes to this option, support will be included for the
581 Synopsys DesignWare I2C slave adapter.
583 config I2C_DESIGNWARE_PLATFORM
584 tristate "Synopsys DesignWare Platform driver"
585 depends on (ACPI && COMMON_CLK) || !ACPI
586 select MFD_SYSCON if MIPS_BAIKAL_T1
587 default I2C_DESIGNWARE_CORE
589 If you say yes to this option, support will be included for the
590 Synopsys DesignWare I2C adapters on the platform bus.
592 This driver can also be built as a module. If so, the module
593 will be called i2c-designware-platform.
595 config I2C_DESIGNWARE_AMDPSP
596 bool "AMD PSP I2C semaphore support"
598 depends on CRYPTO_DEV_SP_PSP
600 depends on I2C_DESIGNWARE_PLATFORM
601 depends on (I2C_DESIGNWARE_PLATFORM=y && CRYPTO_DEV_CCP_DD=y) || \
602 (I2C_DESIGNWARE_PLATFORM=m && CRYPTO_DEV_CCP_DD)
604 This driver enables managed host access to the selected I2C bus shared
605 between AMD CPU and AMD PSP.
607 You should say Y if running on an AMD system equipped with the PSP.
609 config I2C_DESIGNWARE_BAYTRAIL
610 bool "Intel Baytrail I2C semaphore support"
612 depends on I2C_DESIGNWARE_PLATFORM
613 depends on (I2C_DESIGNWARE_PLATFORM=m && IOSF_MBI) || \
614 (I2C_DESIGNWARE_PLATFORM=y && IOSF_MBI=y)
616 This driver enables managed host access to the PMIC I2C bus on select
617 Intel BayTrail platforms using the X-Powers AXP288 PMIC. It allows
618 the host to request uninterrupted access to the PMIC's I2C bus from
619 the platform firmware controlling it. You should say Y if running on
620 a BayTrail system using the AXP288.
622 config I2C_DESIGNWARE_PCI
623 tristate "Synopsys DesignWare PCI driver"
627 If you say yes to this option, support will be included for the
628 Synopsys DesignWare I2C adapters on the PCI bus. Only master mode is
631 This driver can also be built as a module. If so, the module
632 will be called i2c-designware-pci.
637 tristate "Conexant Digicolor I2C driver"
638 depends on ARCH_DIGICOLOR || COMPILE_TEST
640 Support for Conexant Digicolor SoCs (CX92755) I2C controller driver.
642 This driver can also be built as a module. If so, the module
643 will be called i2c-digicolor.
646 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) I2C"
647 depends on PCI && (X86_32 || MIPS || COMPILE_TEST)
649 This driver is for PCH(Platform controller Hub) I2C of EG20T which
650 is an IOH(Input/Output Hub) for x86 embedded processor.
651 This driver can access PCH I2C bus device.
653 This driver also can be used for LAPIS Semiconductor IOH(Input/
654 Output Hub), ML7213, ML7223 and ML7831.
655 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
656 for MP(Media Phone) use and ML7831 IOH is for general purpose use.
657 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
658 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
661 tristate "EMMA Mobile series I2C adapter"
665 If you say yes to this option, support will be included for the
666 I2C interface on the Renesas Electronics EM/EV family of processors.
669 tristate "Exynos high-speed I2C driver"
671 depends on ARCH_EXYNOS || COMPILE_TEST
672 default y if ARCH_EXYNOS
674 High-speed I2C controller on Samsung Exynos5 and newer Samsung SoCs:
675 Exynos5250, Exynos5260, Exynos5410, Exynos542x, Exynos5800,
676 Exynos5433, Exynos7, Exynos850 and ExynosAutoV9.
677 Choose Y here only if you build for such Samsung SoC.
680 tristate "GPIO-based bitbanging I2C"
681 depends on GPIOLIB || COMPILE_TEST
684 This is a very simple bitbanging I2C driver utilizing the
685 arch-neutral GPIO API to control the SCL and SDA lines.
687 config I2C_GPIO_FAULT_INJECTOR
688 bool "GPIO-based fault injector"
691 This adds some functionality to the i2c-gpio driver which can inject
692 faults to an I2C bus, so another bus master can be stress-tested.
693 This is for debugging. If unsure, say 'no'.
696 tristate "GXP I2C Interface"
697 depends on ARCH_HPE_GXP || COMPILE_TEST
699 This enables support for GXP I2C interface. The I2C engines can be
700 either I2C master or I2C slaves.
702 config I2C_HIGHLANDER
703 tristate "Highlander FPGA SMBus interface"
704 depends on SH_HIGHLANDER || COMPILE_TEST
706 If you say yes to this option, support will be included for
707 the SMBus interface located in the FPGA on various Highlander
708 boards, particularly the R0P7780LC0011RL and R0P7785LC0011RL
709 FPGAs. This is wholly unrelated to the SoC I2C.
711 This driver can also be built as a module. If so, the module
712 will be called i2c-highlander.
715 tristate "HiSilicon I2C controller"
716 depends on ARM64 || COMPILE_TEST
718 Say Y here if you want to have Hisilicon I2C controller support
719 available on the Kunpeng Server.
721 This driver can also be built as a module. If so, the module
722 will be called i2c-hisi.
725 tristate "IBM PPC 4xx on-chip I2C interface"
728 Say Y here if you want to use IIC peripheral found on
729 embedded IBM PPC 4xx based systems.
731 This driver can also be built as a module. If so, the module
732 will be called i2c-ibm_iic.
735 tristate "Imagination Technologies I2C SCB Controller"
736 depends on MIPS || COMPILE_TEST
738 Say Y here if you want to use the IMG I2C SCB controller,
739 available on the TZ1090 and other IMG SoCs.
741 This driver can also be built as a module. If so, the module
742 will be called i2c-img-scb.
745 tristate "IMX I2C interface"
746 depends on ARCH_MXC || ARCH_LAYERSCAPE || ARCH_S32 || COLDFIRE \
750 Say Y here if you want to use the IIC bus controller on
751 the Freescale i.MX/MXC/S32G, Layerscape or ColdFire processors.
753 This driver can also be built as a module. If so, the module
754 will be called i2c-imx.
757 tristate "IMX Low Power I2C interface"
758 depends on ARCH_MXC || COMPILE_TEST
760 Say Y here if you want to use the Low Power IIC bus controller
761 on the Freescale i.MX processors.
763 This driver can also be built as a module. If so, the module
764 will be called i2c-imx-lpi2c.
767 tristate "Intel IXP4xx on-chip I2C interface"
768 depends on ARCH_IXP4XX || COMPILE_TEST
770 Say Y here if you want to use the IIC bus controller on
771 the Intel IXP4xx Network Processors.
773 This driver can also be built as a module. If so, the module
774 will be called i2c-iop3xx.
777 tristate "JZ4780 I2C controller interface support"
778 depends on MIPS || COMPILE_TEST
780 If you say yes to this option, support will be included for the
781 Ingenic JZ4780 I2C controller.
783 If you don't know what to do here, say N.
786 tristate "KEBA I2C controller support"
788 depends on KEBA_CP500 || COMPILE_TEST
791 This driver supports the I2C controller found in KEBA system FPGA
794 This driver can also be built as a module. If so, the module
795 will be called i2c-keba.
798 tristate "Kontron COM I2C Controller"
799 depends on MFD_KEMPLD
801 This enables support for the I2C bus interface on some Kontron ETX
802 and COMexpress (ETXexpress) modules.
804 This driver can also be built as a module. If so, the module
805 will be called i2c-kempld.
808 tristate "I2C bus support for NXP LPC2K/LPC178x/18xx/43xx"
809 depends on OF && (ARCH_LPC18XX || COMPILE_TEST)
811 This driver supports the I2C interface found several NXP
812 devices including LPC2xxx, LPC178x/7x and LPC18xx/43xx.
814 This driver can also be built as a module. If so, the module
815 will be called i2c-lpc2k.
818 tristate "Loongson LS2X I2C adapter"
819 depends on MACH_LOONGSON64 || COMPILE_TEST
821 If you say yes to this option, support will be included for the
822 I2C interface on the Loongson-2K SoCs and Loongson LS7A bridge
825 This driver can also be built as a module. If so, the module
826 will be called i2c-ls2x.
829 tristate "Mellanox BlueField I2C controller"
830 depends on MELLANOX_PLATFORM && ARM64
834 Enabling this option will add I2C SMBus support for Mellanox BlueField
837 This driver can also be built as a module. If so, the module will be
840 This driver implements an I2C SMBus host controller and enables both
841 master and slave functions.
844 tristate "Amlogic Meson I2C controller"
845 depends on ARCH_MESON || COMPILE_TEST
846 depends on COMMON_CLK
848 If you say yes to this option, support will be included for the
849 I2C interface on the Amlogic Meson family of SoCs.
851 config I2C_MICROCHIP_CORE
852 tristate "Microchip FPGA I2C controller"
853 depends on ARCH_MICROCHIP_POLARFIRE || COMPILE_TEST
856 If you say yes to this option, support will be included for the
857 I2C interface on Microchip FPGAs.
859 This driver can also be built as a module. If so, the module will be
860 called i2c-microchip-core.
863 tristate "MPC107/824x/85xx/512x/52xx/83xx/86xx"
866 If you say yes to this option, support will be included for the
867 built-in I2C interface on the MPC107, Tsi107, MPC512x, MPC52xx,
868 MPC8240, MPC8245, MPC83xx, MPC85xx and MPC8641 family processors.
870 This driver can also be built as a module. If so, the module
871 will be called i2c-mpc.
874 tristate "MediaTek I2C adapter"
875 depends on ARCH_MEDIATEK || COMPILE_TEST
877 This selects the MediaTek(R) Integrated Inter Circuit bus driver
878 for MT65xx and MT81xx.
879 If you want to use MediaTek(R) I2C interface, say Y or M here.
883 tristate "MT7621/MT7628 I2C Controller"
884 depends on (RALINK && (SOC_MT7620 || SOC_MT7621)) || ARCH_AIROHA || COMPILE_TEST
886 Say Y here to include support for I2C controller in the
887 MediaTek MT7621/MT7628 SoCs.
890 tristate "Marvell mv64xxx I2C Controller"
891 depends on PLAT_ORION || ARCH_SUNXI || ARCH_MVEBU || COMPILE_TEST
893 If you say yes to this option, support will be included for the
894 built-in I2C interface on the Marvell 64xxx line of host bridges.
895 This driver is also used for Allwinner SoCs I2C controllers.
897 This driver can also be built as a module. If so, the module
898 will be called i2c-mv64xxx.
901 tristate "Freescale i.MX28 I2C interface"
902 depends on SOC_IMX28 || COMPILE_TEST
905 Say Y here if you want to use the I2C bus controller on
906 the Freescale i.MX28 processors.
908 This driver can also be built as a module. If so, the module
909 will be called i2c-mxs.
912 tristate "ST-Ericsson Nomadik/Ux500 I2C Controller"
915 If you say yes to this option, support will be included for the
916 I2C interface from ST-Ericsson's Nomadik and Ux500 architectures,
917 as well as the STA2X11 PCIe I/O HUB.
920 tristate "Nuvoton I2C Controller"
921 depends on ARCH_NPCM || COMPILE_TEST
923 If you say yes to this option, support will be included for the
924 Nuvoton I2C controller, which is available on the NPCM BMC
926 Driver can also support slave mode (select I2C_SLAVE).
929 tristate "OpenCores I2C Controller"
931 If you say yes to this option, support will be included for the
932 OpenCores I2C controller. For details see
933 http://www.opencores.org/projects.cgi/web/i2c/overview
935 This driver can also be built as a module. If so, the module
936 will be called i2c-ocores.
939 tristate "OMAP I2C adapter"
940 depends on ARCH_OMAP || ARCH_K3 || COMPILE_TEST
941 default MACH_OMAP_OSK
943 If you say yes to this option, support will be included for the
944 I2C interface on the Texas Instruments OMAP1/2 family of processors.
945 Like OMAP1510/1610/1710/5912 and OMAP242x.
946 For details see http://www.ti.com/omap.
949 tristate "Actions Semiconductor Owl I2C Controller"
950 depends on ARCH_ACTIONS || COMPILE_TEST
952 Say Y here if you want to use the I2C bus controller on
953 the Actions Semiconductor Owl SoC's.
956 tristate "PA Semi SMBus interface"
957 depends on PPC_PASEMI && PCI
959 Supports the PA Semi PWRficient on-chip SMBus interfaces.
962 tristate "Apple SMBus platform driver"
963 depends on !I2C_PASEMI
964 depends on ARCH_APPLE || COMPILE_TEST
967 Say Y here if you want to use the I2C controller present on Apple
968 Silicon chips such as the M1.
970 This driver can also be built as a module. If so, the module
971 will be called i2c-apple.
973 config I2C_PCA_PLATFORM
974 tristate "PCA9564/PCA9665 as platform device"
977 This driver supports a memory mapped Philips PCA9564/PCA9665
978 parallel bus to I2C bus controller.
980 This driver can also be built as a module. If so, the module
981 will be called i2c-pca-platform.
984 tristate "I2C bus support for Philips PNX and NXP LPC targets"
985 depends on ARCH_LPC32XX || COMPILE_TEST
987 This driver supports the Philips IP3204 I2C IP block master and/or
990 This driver can also be built as a module. If so, the module
991 will be called i2c-pnx.
994 tristate "Intel PXA2XX I2C adapter"
995 depends on ARCH_PXA || ARCH_MMP || ARCH_MVEBU || (X86_32 && PCI && OF) || COMPILE_TEST
997 If you have devices in the PXA I2C bus, say yes to this option.
998 This driver can also be built as a module. If so, the module
999 will be called i2c-pxa.
1002 def_bool I2C_PXA && X86_32 && PCI && OF
1004 config I2C_PXA_SLAVE
1005 bool "Intel PXA2XX I2C Slave comms support"
1006 depends on I2C_PXA && !X86_32
1009 Support I2C slave mode communications on the PXA I2C bus. This
1010 is necessary for systems where the PXA may be a target on the
1014 tristate "Qualcomm Camera Control Interface"
1015 depends on ARCH_QCOM || COMPILE_TEST
1017 If you say yes to this option, support will be included for the
1018 built-in camera control interface on the Qualcomm SoCs.
1020 This driver can also be built as a module. If so, the module
1021 will be called i2c-qcom-cci.
1023 config I2C_QCOM_GENI
1024 tristate "Qualcomm Technologies Inc.'s GENI based I2C controller"
1025 depends on ARCH_QCOM || COMPILE_TEST
1026 depends on QCOM_GENI_SE
1028 This driver supports GENI serial engine based I2C controller in
1029 master mode on the Qualcomm Technologies Inc.'s SoCs. If you say
1030 yes to this option, support will be included for the built-in I2C
1031 interface on the Qualcomm Technologies Inc.'s SoCs.
1033 This driver can also be built as a module. If so, the module
1034 will be called i2c-qcom-geni.
1037 tristate "Qualcomm QUP based I2C controller"
1038 depends on ARCH_QCOM || COMPILE_TEST
1040 If you say yes to this option, support will be included for the
1041 built-in I2C interface on the Qualcomm SoCs.
1043 This driver can also be built as a module. If so, the module
1044 will be called i2c-qup.
1047 tristate "Renesas RIIC adapter"
1048 depends on ARCH_RENESAS || COMPILE_TEST
1050 If you say yes to this option, support will be included for the
1051 Renesas RIIC I2C interface.
1053 This driver can also be built as a module. If so, the module
1054 will be called i2c-riic.
1057 tristate "Rockchip RK3xxx I2C adapter"
1058 depends on OF && COMMON_CLK
1060 Say Y here to include support for the I2C adapter in Rockchip RK3xxx
1063 This driver can also be built as a module. If so, the module will
1067 tristate "Realtek RTL9300 I2C controller"
1068 depends on MACH_REALTEK_RTL || COMPILE_TEST
1070 Say Y here to include support for the I2C controller in Realtek
1073 This driver can also be built as a module. If so, the module will
1074 be called i2c-rtl9300.
1077 tristate "Renesas RZ/V2M adapter"
1078 depends on ARCH_RENESAS || COMPILE_TEST
1080 If you say yes to this option, support will be included for the
1081 Renesas RZ/V2M I2C interface.
1083 This driver can also be built as a module. If so, the module
1084 will be called i2c-rzv2m.
1087 tristate "S3C/Exynos I2C Driver"
1088 depends on ARCH_EXYNOS || ARCH_S3C64XX || ARCH_S5PV210 || COMPILE_TEST
1090 Say Y here to include support for I2C controller in the
1091 Samsung SoCs (S3C, S5Pv210, Exynos).
1094 tristate "Renesas SH7760 I2C Controller"
1095 depends on CPU_SUBTYPE_SH7760
1097 This driver supports the 2 I2C interfaces on the Renesas SH7760.
1099 This driver can also be built as a module. If so, the module
1100 will be called i2c-sh7760.
1102 config I2C_SH_MOBILE
1103 tristate "SuperH Mobile I2C Controller"
1104 depends on ARCH_SHMOBILE || ARCH_RENESAS || COMPILE_TEST
1106 If you say yes to this option, support will be included for the
1107 built-in I2C interface on the Renesas SH-Mobile processor.
1109 This driver can also be built as a module. If so, the module
1110 will be called i2c-sh_mobile.
1113 tristate "Simtec Generic I2C interface"
1116 If you say yes to this option, support will be included for
1117 the Simtec Generic I2C interface. This driver is for the
1118 simple I2C bus used on newer Simtec products for general
1119 I2C, such as DDC on the Simtec BBD2016A.
1121 This driver can also be built as a module. If so, the module
1122 will be called i2c-simtec.
1125 tristate "Spreadtrum I2C interface"
1126 depends on I2C=y && (ARCH_SPRD || COMPILE_TEST)
1127 depends on COMMON_CLK
1129 If you say yes to this option, support will be included for the
1130 Spreadtrum I2C interface.
1133 tristate "STMicroelectronics SSC I2C support"
1134 depends on ARCH_STI || COMPILE_TEST
1136 Enable this option to add support for STMicroelectronics SoCs
1137 hardware SSC (Synchronous Serial Controller) as an I2C controller.
1139 This driver can also be built as module. If so, the module
1140 will be called i2c-st.
1143 tristate "STMicroelectronics STM32F4 I2C support"
1144 depends on ARCH_STM32 || COMPILE_TEST
1146 Enable this option to add support for STM32 I2C controller embedded
1149 This driver can also be built as module. If so, the module
1150 will be called i2c-stm32f4.
1153 tristate "STMicroelectronics STM32F7 I2C support"
1154 depends on ARCH_STM32 || COMPILE_TEST
1158 Enable this option to add support for STM32 I2C controller embedded
1161 This driver can also be built as module. If so, the module
1162 will be called i2c-stm32f7.
1164 config I2C_SUN6I_P2WI
1165 tristate "Allwinner sun6i internal P2WI controller"
1166 depends on RESET_CONTROLLER
1167 depends on MACH_SUN6I || COMPILE_TEST
1169 If you say yes to this option, support will be included for the
1170 P2WI (Push/Pull 2 Wire Interface) controller embedded in some sunxi
1172 The P2WI looks like an SMBus controller (which supports only byte
1173 accesses), except that it only supports one slave device.
1174 This interface is used to connect to specific PMIC devices (like the
1177 config I2C_SYNQUACER
1178 tristate "Socionext SynQuacer I2C controller"
1179 depends on ARCH_SYNQUACER || COMPILE_TEST
1181 Say Y here to include support for the I2C controller used in some
1182 Fujitsu and Socionext SoCs.
1184 This driver can also be built as a module. If so, the module
1185 will be called i2c-synquacer.
1188 tristate "NVIDIA Tegra internal I2C controller"
1189 depends on ARCH_TEGRA || (COMPILE_TEST && (ARC || ARM || ARM64 || M68K || RISCV || SUPERH || SPARC))
1190 # COMPILE_TEST needs architectures with readsX()/writesX() primitives
1192 If you say yes to this option, support will be included for the
1193 I2C controller embedded in NVIDIA Tegra SOCs
1195 config I2C_TEGRA_BPMP
1196 tristate "NVIDIA Tegra BPMP I2C controller"
1197 depends on TEGRA_BPMP || COMPILE_TEST
1198 default y if TEGRA_BPMP
1200 If you say yes to this option, support will be included for the I2C
1201 controller embedded in NVIDIA Tegra SoCs accessed via the BPMP.
1203 This I2C driver is a 'virtual' I2C driver. The real driver is part
1204 of the BPMP firmware, and this driver merely communicates with that
1208 tristate "UniPhier FIFO-less I2C controller"
1209 depends on ARCH_UNIPHIER || COMPILE_TEST
1211 If you say yes to this option, support will be included for
1212 the UniPhier FIFO-less I2C interface embedded in PH1-LD4, PH1-sLD8,
1213 or older UniPhier SoCs.
1215 config I2C_UNIPHIER_F
1216 tristate "UniPhier FIFO-builtin I2C controller"
1217 depends on ARCH_UNIPHIER || COMPILE_TEST
1219 If you say yes to this option, support will be included for
1220 the UniPhier FIFO-builtin I2C interface embedded in PH1-Pro4,
1221 PH1-Pro5, or newer UniPhier SoCs.
1223 config I2C_VERSATILE
1224 tristate "ARM Versatile/Realview I2C bus support"
1225 depends on ARCH_MPS2 || ARCH_VERSATILE || ARCH_REALVIEW || ARCH_VEXPRESS || COMPILE_TEST
1228 Say yes if you want to support the I2C serial bus on ARMs Versatile
1231 This driver can also be built as a module. If so, the module
1232 will be called i2c-versatile.
1235 tristate "Wondermedia WM8xxx SoC I2C bus support"
1236 depends on ARCH_VT8500 || COMPILE_TEST
1238 Say yes if you want to support the I2C bus on Wondermedia 8xxx-series
1241 This driver can also be built as a module. If so, the module will be
1245 tristate "Cavium OCTEON I2C bus support"
1246 depends on CAVIUM_OCTEON_SOC
1248 Say yes if you want to support the I2C serial bus on Cavium
1251 This driver can also be built as a module. If so, the module
1252 will be called i2c-octeon.
1255 tristate "Cavium ThunderX I2C bus support"
1256 depends on 64BIT && PCI && (ARM64 || COMPILE_TEST)
1259 Say yes if you want to support the I2C serial bus on Cavium
1262 This driver can also be built as a module. If so, the module
1263 will be called i2c-thunderx.
1266 tristate "Xilinx I2C Controller"
1267 depends on HAS_IOMEM
1269 If you say yes to this option, support will be included for the
1270 Xilinx I2C controller.
1272 This driver can also be built as a module. If so, the module
1273 will be called xilinx_i2c.
1276 tristate "Cavium ThunderX2 I2C support"
1277 depends on ARCH_THUNDER2 || COMPILE_TEST
1279 This driver enables support for the on-chip I2C interface of
1280 the Cavium ThunderX2 processors. (Originally on Netlogic XLP SoCs.)
1282 This driver can also be built as a module. If so, the module will
1283 be called i2c-xlp9xx.
1286 tristate "Renesas R-Car I2C Controller"
1287 depends on ARCH_RENESAS || COMPILE_TEST
1290 select RESET_CONTROLLER if ARCH_RCAR_GEN3 || ARCH_RCAR_GEN4
1292 If you say yes to this option, support will be included for the
1293 R-Car I2C controller.
1295 This driver can also be built as a module. If so, the module
1296 will be called i2c-rcar.
1298 comment "External I2C/SMBus adapter drivers"
1300 config I2C_DIOLAN_U2C
1301 tristate "Diolan U2C-12 USB adapter"
1304 If you say yes to this option, support will be included for Diolan
1305 U2C-12, a USB to I2C interface.
1307 This driver can also be built as a module. If so, the module
1308 will be called i2c-diolan-u2c.
1311 tristate "Diolan DLN-2 USB I2C adapter"
1314 If you say yes to this option, support will be included for Diolan
1315 DLN2, a USB to I2C interface.
1317 This driver can also be built as a module. If so, the module
1318 will be called i2c-dln2.
1321 tristate "I2C functionality of Intel La Jolla Cove Adapter"
1325 If you say yes to this option, I2C functionality support of Intel
1326 La Jolla Cove Adapter (LJCA) will be included.
1328 This driver can also be built as a module. If so, the module
1329 will be called i2c-ljca.
1332 tristate "Silicon Labs CP2615 USB sound card and I2C adapter"
1335 If you say yes to this option, support will be included for Silicon
1336 Labs CP2615's I2C interface.
1338 This driver can also be built as a module. If so, the module
1339 will be called i2c-cp2615.
1342 tristate "Parallel port adapter"
1347 This supports parallel port I2C adapters such as the ones made by
1348 Philips or Velleman, Analog Devices evaluation boards, and more.
1349 Basically any adapter using the parallel port as an I2C bus with
1350 no extra chipset is supported by this driver, or could be. Please
1351 read the file Documentation/i2c/busses/i2c-parport.rst for details.
1353 This support is also available as a module. If so, the module
1354 will be called i2c-parport.
1357 tristate "PCI1XXXX I2C Host Adapter"
1360 If you say yes to this option, support will be included for
1361 Microchip PCI1XXXX's I2C interface.
1363 This driver can also be built as a module. If so, the module will
1364 be called i2c-mchp-pci1xxxx.
1366 config I2C_ROBOTFUZZ_OSIF
1367 tristate "RobotFuzz Open Source InterFace USB adapter"
1370 If you say yes to this option, support will be included for the
1371 RobotFuzz Open Source InterFace USB to I2C interface.
1373 This driver can also be built as a module. If so, the module
1374 will be called i2c-osif.
1377 tristate "TAOS evaluation module"
1380 select SERIO_SERPORT
1382 This supports TAOS evaluation modules on serial port. In order to
1383 use this driver, you will need the inputattach tool, which is part
1384 of the input-utils package.
1388 This support is also available as a module. If so, the module
1389 will be called i2c-taos-evm.
1392 tristate "Tiny-USB adapter"
1395 If you say yes to this option, support will be included for the
1396 i2c-tiny-usb, a simple do-it-yourself USB to I2C interface. See
1397 http://www.harbaum.org/till/i2c_tiny_usb for hardware details.
1399 This driver can also be built as a module. If so, the module
1400 will be called i2c-tiny-usb.
1402 config I2C_VIPERBOARD
1403 tristate "Viperboard I2C master support"
1404 depends on MFD_VIPERBOARD && USB
1406 Say yes here to access the I2C part of the Nano River
1407 Technologies Viperboard as I2C master.
1408 See viperboard API specification and Nano
1409 River Tech's viperboard.h for detailed meaning
1410 of the module parameters.
1412 comment "Other I2C/SMBus bus drivers"
1415 tristate "Acorn IOC/IOMD I2C bus support"
1416 depends on ARCH_ACORN
1420 Say yes if you want to support the I2C bus on Acorn platforms.
1422 If you don't know, say Y.
1425 tristate "Elektor ISA card"
1426 depends on ISA && HAS_IOPORT_MAP && BROKEN_ON_SMP
1429 This supports the PCF8584 ISA bus I2C adapter. Say Y if you own
1432 This support is also available as a module. If so, the module
1433 will be called i2c-elektor.
1436 tristate "ICY Zorro card"
1440 This supports the PCF8584 Zorro bus I2C adapter, known as ICY.
1441 Say Y if you own such an adapter.
1443 This support is also available as a module. If so, the module
1444 will be called i2c-icy.
1446 If you have a 2019 edition board with an LTC2990 sensor at address
1447 0x4c, loading the module 'ltc2990' is sufficient to enable it.
1450 tristate "Mellanox I2C driver"
1451 depends on X86_64 || (ARM64 && ACPI) || COMPILE_TEST
1452 depends on HAS_IOPORT
1454 This exposes the Mellanox platform I2C busses to the linux I2C layer
1455 for X86 and ARM64/ACPI based systems.
1456 Controller is implemented as CPLD logic.
1458 This driver can also be built as a module. If so, the module will be
1459 called as i2c-mlxcpld.
1462 tristate "PCA9564/PCA9665 on an ISA bus"
1466 This driver supports ISA boards using the Philips PCA9564/PCA9665
1467 parallel bus to I2C bus controller.
1469 This driver can also be built as a module. If so, the module
1470 will be called i2c-pca-isa.
1472 This device is almost undetectable and using this driver on a
1473 system which doesn't have this device will result in long
1474 delays when I2C/SMBus chip drivers are loaded (e.g. at boot
1475 time). If unsure, say N.
1478 tristate "SiByte SMBus interface"
1479 depends on SIBYTE_SB1xxx_SOC
1481 Supports the SiByte SOC on-chip I2C interfaces (2 channels).
1483 config I2C_CROS_EC_TUNNEL
1484 tristate "ChromeOS EC tunnel I2C bus"
1487 If you say yes here you get an I2C bus that will tunnel i2c commands
1488 through to the other side of the ChromeOS EC to the i2c bus
1489 connected there. This will work whatever the interface used to
1490 talk to the EC (SPI, I2C or LPC).
1492 config I2C_XGENE_SLIMPRO
1493 tristate "APM X-Gene SoC I2C SLIMpro devices support"
1494 depends on ARCH_XGENE && MAILBOX
1496 Enable I2C bus access using the APM X-Gene SoC SLIMpro
1497 co-processor. The I2C device access the I2C bus via the X-Gene
1498 to SLIMpro (On chip coprocessor) mailbox mechanism.
1502 tristate "Geode ACCESS.bus support"
1503 depends on X86_32 && PCI
1505 Enable the use of the ACCESS.bus controllers on the Geode SCx200 and
1506 SC1100 processors and the CS5535 and CS5536 Geode companion devices.
1508 If you don't know what to do here, say N.
1510 This support is also available as a module. If so, the module
1511 will be called scx200_acb.
1514 tristate "IBM OPAL I2C driver"
1515 depends on PPC_POWERNV
1518 This exposes the PowerNV platform i2c busses to the linux i2c layer,
1519 the driver is based on the OPAL interfaces.
1521 This driver can also be built as a module. If so, the module will be
1525 tristate "FSI I2C driver"
1528 Driver for FSI bus attached I2C masters. These are I2C masters that
1529 are connected to the system over an FSI bus, instead of the more
1530 common PCI or MMIO interface.
1532 This driver can also be built as a module. If so, the module will be
1536 tristate "Virtio I2C Adapter"
1539 If you say yes to this option, support will be included for the virtio
1540 I2C adapter driver. The hardware can be emulated by any device model
1541 software according to the virtio protocol.
1543 This driver can also be built as a module. If so, the module
1544 will be called i2c-virtio.