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)
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"
571 depends on I2C_DESIGNWARE_PLATFORM
573 This driver enables managed host access to the selected I2C bus shared
574 between AMD CPU and AMD PSP.
576 You should say Y if running on an AMD system equipped with the PSP.
578 config I2C_DESIGNWARE_BAYTRAIL
579 bool "Intel Baytrail I2C semaphore support"
581 depends on I2C_DESIGNWARE_PLATFORM
582 depends on (I2C_DESIGNWARE_PLATFORM=m && IOSF_MBI) || \
583 (I2C_DESIGNWARE_PLATFORM=y && IOSF_MBI=y)
585 This driver enables managed host access to the PMIC I2C bus on select
586 Intel BayTrail platforms using the X-Powers AXP288 PMIC. It allows
587 the host to request uninterrupted access to the PMIC's I2C bus from
588 the platform firmware controlling it. You should say Y if running on
589 a BayTrail system using the AXP288.
591 config I2C_DESIGNWARE_PCI
592 tristate "Synopsys DesignWare PCI"
594 select I2C_DESIGNWARE_CORE
597 If you say yes to this option, support will be included for the
598 Synopsys DesignWare I2C adapter. Only master mode is supported.
600 This driver can also be built as a module. If so, the module
601 will be called i2c-designware-pci.
604 tristate "Conexant Digicolor I2C driver"
605 depends on ARCH_DIGICOLOR || COMPILE_TEST
607 Support for Conexant Digicolor SoCs (CX92755) I2C controller driver.
609 This driver can also be built as a module. If so, the module
610 will be called i2c-digicolor.
613 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) I2C"
614 depends on PCI && (X86_32 || MIPS || COMPILE_TEST)
616 This driver is for PCH(Platform controller Hub) I2C of EG20T which
617 is an IOH(Input/Output Hub) for x86 embedded processor.
618 This driver can access PCH I2C bus device.
620 This driver also can be used for LAPIS Semiconductor IOH(Input/
621 Output Hub), ML7213, ML7223 and ML7831.
622 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
623 for MP(Media Phone) use and ML7831 IOH is for general purpose use.
624 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
625 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
628 tristate "EMMA Mobile series I2C adapter"
632 If you say yes to this option, support will be included for the
633 I2C interface on the Renesas Electronics EM/EV family of processors.
636 tristate "Exynos high-speed I2C driver"
638 depends on ARCH_EXYNOS || COMPILE_TEST
639 default y if ARCH_EXYNOS
641 High-speed I2C controller on Samsung Exynos5 and newer Samsung SoCs:
642 Exynos5250, Exynos5260, Exynos5410, Exynos542x, Exynos5800,
643 Exynos5433, Exynos7, Exynos850 and ExynosAutoV9.
644 Choose Y here only if you build for such Samsung SoC.
647 tristate "GPIO-based bitbanging I2C"
648 depends on GPIOLIB || COMPILE_TEST
651 This is a very simple bitbanging I2C driver utilizing the
652 arch-neutral GPIO API to control the SCL and SDA lines.
654 config I2C_GPIO_FAULT_INJECTOR
655 bool "GPIO-based fault injector"
658 This adds some functionality to the i2c-gpio driver which can inject
659 faults to an I2C bus, so another bus master can be stress-tested.
660 This is for debugging. If unsure, say 'no'.
662 config I2C_HIGHLANDER
663 tristate "Highlander FPGA SMBus interface"
664 depends on SH_HIGHLANDER || COMPILE_TEST
666 If you say yes to this option, support will be included for
667 the SMBus interface located in the FPGA on various Highlander
668 boards, particularly the R0P7780LC0011RL and R0P7785LC0011RL
669 FPGAs. This is wholly unrelated to the SoC I2C.
671 This driver can also be built as a module. If so, the module
672 will be called i2c-highlander.
675 tristate "HiSilicon I2C controller"
676 depends on (ARM64 && ACPI) || COMPILE_TEST
678 Say Y here if you want to have Hisilicon I2C controller support
679 available on the Kunpeng Server.
681 This driver can also be built as a module. If so, the module
682 will be called i2c-hisi.
685 tristate "IBM PPC 4xx on-chip I2C interface"
688 Say Y here if you want to use IIC peripheral found on
689 embedded IBM PPC 4xx based systems.
691 This driver can also be built as a module. If so, the module
692 will be called i2c-ibm_iic.
695 tristate "Imagination Technologies I2C SCB Controller"
696 depends on MIPS || COMPILE_TEST
698 Say Y here if you want to use the IMG I2C SCB controller,
699 available on the TZ1090 and other IMG SoCs.
701 This driver can also be built as a module. If so, the module
702 will be called i2c-img-scb.
705 tristate "IMX I2C interface"
706 depends on ARCH_MXC || ARCH_LAYERSCAPE || COLDFIRE || COMPILE_TEST
709 Say Y here if you want to use the IIC bus controller on
710 the Freescale i.MX/MXC, Layerscape or ColdFire processors.
712 This driver can also be built as a module. If so, the module
713 will be called i2c-imx.
716 tristate "IMX Low Power I2C interface"
717 depends on ARCH_MXC || COMPILE_TEST
719 Say Y here if you want to use the Low Power IIC bus controller
720 on the Freescale i.MX processors.
722 This driver can also be built as a module. If so, the module
723 will be called i2c-imx-lpi2c.
726 tristate "Intel IOPx3xx and IXP4xx on-chip I2C interface"
727 depends on ARCH_IOP32X || ARCH_IXP4XX || COMPILE_TEST
729 Say Y here if you want to use the IIC bus controller on
730 the Intel IOPx3xx I/O Processors or IXP4xx Network Processors.
732 This driver can also be built as a module. If so, the module
733 will be called i2c-iop3xx.
736 tristate "JZ4780 I2C controller interface support"
737 depends on MIPS || COMPILE_TEST
739 If you say yes to this option, support will be included for the
740 Ingenic JZ4780 I2C controller.
742 If you don't know what to do here, say N.
745 tristate "Kontron COM I2C Controller"
746 depends on MFD_KEMPLD
748 This enables support for the I2C bus interface on some Kontron ETX
749 and COMexpress (ETXexpress) modules.
751 This driver can also be built as a module. If so, the module
752 will be called i2c-kempld.
755 tristate "I2C bus support for NXP LPC2K/LPC178x/18xx/43xx"
756 depends on OF && (ARCH_LPC18XX || COMPILE_TEST)
758 This driver supports the I2C interface found several NXP
759 devices including LPC2xxx, LPC178x/7x and LPC18xx/43xx.
761 This driver can also be built as a module. If so, the module
762 will be called i2c-lpc2k.
765 tristate "Mellanox BlueField I2C controller"
766 depends on MELLANOX_PLATFORM && ARM64
770 Enabling this option will add I2C SMBus support for Mellanox BlueField
773 This driver can also be built as a module. If so, the module will be
776 This driver implements an I2C SMBus host controller and enables both
777 master and slave functions.
780 tristate "Amlogic Meson I2C controller"
781 depends on ARCH_MESON || COMPILE_TEST
782 depends on COMMON_CLK
784 If you say yes to this option, support will be included for the
785 I2C interface on the Amlogic Meson family of SoCs.
787 config I2C_MICROCHIP_CORE
788 tristate "Microchip FPGA I2C controller"
789 depends on SOC_MICROCHIP_POLARFIRE || COMPILE_TEST
792 If you say yes to this option, support will be included for the
793 I2C interface on Microchip FPGAs.
795 This driver can also be built as a module. If so, the module will be
796 called i2c-microchip-core.
799 tristate "MPC107/824x/85xx/512x/52xx/83xx/86xx"
802 If you say yes to this option, support will be included for the
803 built-in I2C interface on the MPC107, Tsi107, MPC512x, MPC52xx,
804 MPC8240, MPC8245, MPC83xx, MPC85xx and MPC8641 family processors.
806 This driver can also be built as a module. If so, the module
807 will be called i2c-mpc.
810 tristate "MediaTek I2C adapter"
811 depends on ARCH_MEDIATEK || COMPILE_TEST
813 This selects the MediaTek(R) Integrated Inter Circuit bus driver
814 for MT65xx and MT81xx.
815 If you want to use MediaTek(R) I2C interface, say Y or M here.
819 tristate "MT7621/MT7628 I2C Controller"
820 depends on (RALINK && (SOC_MT7620 || SOC_MT7621)) || COMPILE_TEST
822 Say Y here to include support for I2C controller in the
823 MediaTek MT7621/MT7628 SoCs.
826 tristate "Marvell mv64xxx I2C Controller"
827 depends on PLAT_ORION || ARCH_SUNXI || ARCH_MVEBU || COMPILE_TEST
829 If you say yes to this option, support will be included for the
830 built-in I2C interface on the Marvell 64xxx line of host bridges.
831 This driver is also used for Allwinner SoCs I2C controllers.
833 This driver can also be built as a module. If so, the module
834 will be called i2c-mv64xxx.
837 tristate "Freescale i.MX28 I2C interface"
838 depends on SOC_IMX28 || COMPILE_TEST
841 Say Y here if you want to use the I2C bus controller on
842 the Freescale i.MX28 processors.
844 This driver can also be built as a module. If so, the module
845 will be called i2c-mxs.
848 tristate "ST-Ericsson Nomadik/Ux500 I2C Controller"
851 If you say yes to this option, support will be included for the
852 I2C interface from ST-Ericsson's Nomadik and Ux500 architectures,
853 as well as the STA2X11 PCIe I/O HUB.
856 tristate "Nuvoton I2C Controller"
857 depends on ARCH_NPCM || COMPILE_TEST
859 If you say yes to this option, support will be included for the
860 Nuvoton I2C controller, which is available on the NPCM BMC
862 Driver can also support slave mode (select I2C_SLAVE).
865 tristate "OpenCores I2C Controller"
867 If you say yes to this option, support will be included for the
868 OpenCores I2C controller. For details see
869 http://www.opencores.org/projects.cgi/web/i2c/overview
871 This driver can also be built as a module. If so, the module
872 will be called i2c-ocores.
875 tristate "OMAP I2C adapter"
876 depends on ARCH_OMAP || ARCH_K3 || COMPILE_TEST
877 default y if MACH_OMAP_H3 || MACH_OMAP_OSK
879 If you say yes to this option, support will be included for the
880 I2C interface on the Texas Instruments OMAP1/2 family of processors.
881 Like OMAP1510/1610/1710/5912 and OMAP242x.
882 For details see http://www.ti.com/omap.
885 tristate "Actions Semiconductor Owl I2C Controller"
886 depends on ARCH_ACTIONS || COMPILE_TEST
888 Say Y here if you want to use the I2C bus controller on
889 the Actions Semiconductor Owl SoC's.
892 tristate "PA Semi SMBus interface"
893 depends on PPC_PASEMI && PCI
895 Supports the PA Semi PWRficient on-chip SMBus interfaces.
898 tristate "Apple SMBus platform driver"
899 depends on ARCH_APPLE || COMPILE_TEST
902 Say Y here if you want to use the I2C controller present on Apple
903 Silicon chips such as the M1.
905 This driver can also be built as a module. If so, the module
906 will be called i2c-apple.
908 config I2C_PCA_PLATFORM
909 tristate "PCA9564/PCA9665 as platform device"
912 This driver supports a memory mapped Philips PCA9564/PCA9665
913 parallel bus to I2C bus controller.
915 This driver can also be built as a module. If so, the module
916 will be called i2c-pca-platform.
919 tristate "I2C bus support for Philips PNX and NXP LPC targets"
920 depends on ARCH_LPC32XX || COMPILE_TEST
922 This driver supports the Philips IP3204 I2C IP block master and/or
925 This driver can also be built as a module. If so, the module
926 will be called i2c-pnx.
929 tristate "Intel PXA2XX I2C adapter"
930 depends on ARCH_PXA || ARCH_MMP || ARCH_MVEBU || (X86_32 && PCI && OF) || COMPILE_TEST
932 If you have devices in the PXA I2C bus, say yes to this option.
933 This driver can also be built as a module. If so, the module
934 will be called i2c-pxa.
937 def_bool I2C_PXA && X86_32 && PCI && OF
940 bool "Intel PXA2XX I2C Slave comms support"
941 depends on I2C_PXA && !X86_32
944 Support I2C slave mode communications on the PXA I2C bus. This
945 is necessary for systems where the PXA may be a target on the
949 tristate "Qualcomm Camera Control Interface"
950 depends on ARCH_QCOM || COMPILE_TEST
952 If you say yes to this option, support will be included for the
953 built-in camera control interface on the Qualcomm SoCs.
955 This driver can also be built as a module. If so, the module
956 will be called i2c-qcom-cci.
959 tristate "Qualcomm Technologies Inc.'s GENI based I2C controller"
960 depends on ARCH_QCOM || COMPILE_TEST
961 depends on QCOM_GENI_SE
963 This driver supports GENI serial engine based I2C controller in
964 master mode on the Qualcomm Technologies Inc.'s SoCs. If you say
965 yes to this option, support will be included for the built-in I2C
966 interface on the Qualcomm Technologies Inc.'s SoCs.
968 This driver can also be built as a module. If so, the module
969 will be called i2c-qcom-geni.
972 tristate "Qualcomm QUP based I2C controller"
973 depends on ARCH_QCOM || COMPILE_TEST
975 If you say yes to this option, support will be included for the
976 built-in I2C interface on the Qualcomm SoCs.
978 This driver can also be built as a module. If so, the module
979 will be called i2c-qup.
982 tristate "Renesas RIIC adapter"
983 depends on ARCH_RENESAS || COMPILE_TEST
985 If you say yes to this option, support will be included for the
986 Renesas RIIC I2C interface.
988 This driver can also be built as a module. If so, the module
989 will be called i2c-riic.
992 tristate "Rockchip RK3xxx I2C adapter"
993 depends on OF && COMMON_CLK
995 Say Y here to include support for the I2C adapter in Rockchip RK3xxx
998 This driver can also be built as a module. If so, the module will
1002 tristate "Renesas RZ/V2M adapter"
1003 depends on ARCH_RENESAS || COMPILE_TEST
1005 If you say yes to this option, support will be included for the
1006 Renesas RZ/V2M I2C interface.
1008 This driver can also be built as a module. If so, the module
1009 will be called i2c-rzv2m.
1012 tristate "S3C/Exynos I2C Driver"
1013 depends on ARCH_EXYNOS || ARCH_S3C24XX || ARCH_S3C64XX || \
1014 ARCH_S5PV210 || COMPILE_TEST
1016 Say Y here to include support for I2C controller in the
1017 Samsung SoCs (S3C, S5Pv210, Exynos).
1020 tristate "Renesas SH7760 I2C Controller"
1021 depends on CPU_SUBTYPE_SH7760
1023 This driver supports the 2 I2C interfaces on the Renesas SH7760.
1025 This driver can also be built as a module. If so, the module
1026 will be called i2c-sh7760.
1028 config I2C_SH_MOBILE
1029 tristate "SuperH Mobile I2C Controller"
1030 depends on ARCH_SHMOBILE || ARCH_RENESAS || COMPILE_TEST
1032 If you say yes to this option, support will be included for the
1033 built-in I2C interface on the Renesas SH-Mobile processor.
1035 This driver can also be built as a module. If so, the module
1036 will be called i2c-sh_mobile.
1039 tristate "Simtec Generic I2C interface"
1042 If you say yes to this option, support will be included for
1043 the Simtec Generic I2C interface. This driver is for the
1044 simple I2C bus used on newer Simtec products for general
1045 I2C, such as DDC on the Simtec BBD2016A.
1047 This driver can also be built as a module. If so, the module
1048 will be called i2c-simtec.
1051 tristate "Spreadtrum I2C interface"
1052 depends on I2C=y && (ARCH_SPRD || COMPILE_TEST)
1053 depends on COMMON_CLK
1055 If you say yes to this option, support will be included for the
1056 Spreadtrum I2C interface.
1059 tristate "STMicroelectronics SSC I2C support"
1060 depends on ARCH_STI || COMPILE_TEST
1062 Enable this option to add support for STMicroelectronics SoCs
1063 hardware SSC (Synchronous Serial Controller) as an I2C controller.
1065 This driver can also be built as module. If so, the module
1066 will be called i2c-st.
1069 tristate "STMicroelectronics STM32F4 I2C support"
1070 depends on ARCH_STM32 || COMPILE_TEST
1072 Enable this option to add support for STM32 I2C controller embedded
1075 This driver can also be built as module. If so, the module
1076 will be called i2c-stm32f4.
1079 tristate "STMicroelectronics STM32F7 I2C support"
1080 depends on ARCH_STM32 || COMPILE_TEST
1084 Enable this option to add support for STM32 I2C controller embedded
1087 This driver can also be built as module. If so, the module
1088 will be called i2c-stm32f7.
1090 config I2C_SUN6I_P2WI
1091 tristate "Allwinner sun6i internal P2WI controller"
1092 depends on RESET_CONTROLLER
1093 depends on MACH_SUN6I || COMPILE_TEST
1095 If you say yes to this option, support will be included for the
1096 P2WI (Push/Pull 2 Wire Interface) controller embedded in some sunxi
1098 The P2WI looks like an SMBus controller (which supports only byte
1099 accesses), except that it only supports one slave device.
1100 This interface is used to connect to specific PMIC devices (like the
1103 config I2C_SYNQUACER
1104 tristate "Socionext SynQuacer I2C controller"
1105 depends on ARCH_SYNQUACER || COMPILE_TEST
1107 Say Y here to include support for the I2C controller used in some
1108 Fujitsu and Socionext SoCs.
1110 This driver can also be built as a module. If so, the module
1111 will be called i2c-synquacer.
1114 tristate "NVIDIA Tegra internal I2C controller"
1115 depends on ARCH_TEGRA || (COMPILE_TEST && (ARC || ARM || ARM64 || M68K || RISCV || SUPERH || SPARC))
1116 # COMPILE_TEST needs architectures with readsX()/writesX() primitives
1118 If you say yes to this option, support will be included for the
1119 I2C controller embedded in NVIDIA Tegra SOCs
1121 config I2C_TEGRA_BPMP
1122 tristate "NVIDIA Tegra BPMP I2C controller"
1123 depends on TEGRA_BPMP || COMPILE_TEST
1124 default y if TEGRA_BPMP
1126 If you say yes to this option, support will be included for the I2C
1127 controller embedded in NVIDIA Tegra SoCs accessed via the BPMP.
1129 This I2C driver is a 'virtual' I2C driver. The real driver is part
1130 of the BPMP firmware, and this driver merely communicates with that
1134 tristate "UniPhier FIFO-less I2C controller"
1135 depends on ARCH_UNIPHIER || COMPILE_TEST
1137 If you say yes to this option, support will be included for
1138 the UniPhier FIFO-less I2C interface embedded in PH1-LD4, PH1-sLD8,
1139 or older UniPhier SoCs.
1141 config I2C_UNIPHIER_F
1142 tristate "UniPhier FIFO-builtin I2C controller"
1143 depends on ARCH_UNIPHIER || COMPILE_TEST
1145 If you say yes to this option, support will be included for
1146 the UniPhier FIFO-builtin I2C interface embedded in PH1-Pro4,
1147 PH1-Pro5, or newer UniPhier SoCs.
1149 config I2C_VERSATILE
1150 tristate "ARM Versatile/Realview I2C bus support"
1151 depends on ARCH_MPS2 || ARCH_VERSATILE || ARCH_REALVIEW || ARCH_VEXPRESS || COMPILE_TEST
1154 Say yes if you want to support the I2C serial bus on ARMs Versatile
1157 This driver can also be built as a module. If so, the module
1158 will be called i2c-versatile.
1161 tristate "Wondermedia WM8xxx SoC I2C bus support"
1162 depends on ARCH_VT8500 || COMPILE_TEST
1164 Say yes if you want to support the I2C bus on Wondermedia 8xxx-series
1167 This driver can also be built as a module. If so, the module will be
1171 tristate "Cavium OCTEON I2C bus support"
1172 depends on CAVIUM_OCTEON_SOC
1174 Say yes if you want to support the I2C serial bus on Cavium
1177 This driver can also be built as a module. If so, the module
1178 will be called i2c-octeon.
1181 tristate "Cavium ThunderX I2C bus support"
1182 depends on 64BIT && PCI && (ARM64 || COMPILE_TEST)
1185 Say yes if you want to support the I2C serial bus on Cavium
1188 This driver can also be built as a module. If so, the module
1189 will be called i2c-thunderx.
1192 tristate "Xilinx I2C Controller"
1193 depends on HAS_IOMEM
1195 If you say yes to this option, support will be included for the
1196 Xilinx I2C controller.
1198 This driver can also be built as a module. If so, the module
1199 will be called xilinx_i2c.
1202 tristate "Cavium ThunderX2 I2C support"
1203 depends on ARCH_THUNDER2 || COMPILE_TEST
1205 This driver enables support for the on-chip I2C interface of
1206 the Cavium ThunderX2 processors. (Originally on Netlogic XLP SoCs.)
1208 This driver can also be built as a module. If so, the module will
1209 be called i2c-xlp9xx.
1212 tristate "Renesas R-Car I2C Controller"
1213 depends on ARCH_RENESAS || COMPILE_TEST
1216 select RESET_CONTROLLER if ARCH_RCAR_GEN3
1218 If you say yes to this option, support will be included for the
1219 R-Car I2C controller.
1221 This driver can also be built as a module. If so, the module
1222 will be called i2c-rcar.
1224 comment "External I2C/SMBus adapter drivers"
1226 config I2C_DIOLAN_U2C
1227 tristate "Diolan U2C-12 USB adapter"
1230 If you say yes to this option, support will be included for Diolan
1231 U2C-12, a USB to I2C interface.
1233 This driver can also be built as a module. If so, the module
1234 will be called i2c-diolan-u2c.
1237 tristate "Diolan DLN-2 USB I2C adapter"
1240 If you say yes to this option, support will be included for Diolan
1241 DLN2, a USB to I2C interface.
1243 This driver can also be built as a module. If so, the module
1244 will be called i2c-dln2.
1247 tristate "Silicon Labs CP2615 USB sound card and I2C adapter"
1250 If you say yes to this option, support will be included for Silicon
1251 Labs CP2615's I2C interface.
1253 This driver can also be built as a module. If so, the module
1254 will be called i2c-cp2615.
1257 tristate "Parallel port adapter"
1262 This supports parallel port I2C adapters such as the ones made by
1263 Philips or Velleman, Analog Devices evaluation boards, and more.
1264 Basically any adapter using the parallel port as an I2C bus with
1265 no extra chipset is supported by this driver, or could be. Please
1266 read the file Documentation/i2c/busses/i2c-parport.rst for details.
1268 This support is also available as a module. If so, the module
1269 will be called i2c-parport.
1272 tristate "PCI1XXXX I2C Host Adapter"
1275 If you say yes to this option, support will be included for
1276 Microchip PCI1XXXX's I2C interface.
1278 This driver can also be built as a module. If so, the module will
1279 be called i2c-mchp-pci1xxxx.
1281 config I2C_ROBOTFUZZ_OSIF
1282 tristate "RobotFuzz Open Source InterFace USB adapter"
1285 If you say yes to this option, support will be included for the
1286 RobotFuzz Open Source InterFace USB to I2C interface.
1288 This driver can also be built as a module. If so, the module
1289 will be called i2c-osif.
1292 tristate "TAOS evaluation module"
1295 select SERIO_SERPORT
1297 This supports TAOS evaluation modules on serial port. In order to
1298 use this driver, you will need the inputattach tool, which is part
1299 of the input-utils package.
1303 This support is also available as a module. If so, the module
1304 will be called i2c-taos-evm.
1307 tristate "Tiny-USB adapter"
1310 If you say yes to this option, support will be included for the
1311 i2c-tiny-usb, a simple do-it-yourself USB to I2C interface. See
1312 http://www.harbaum.org/till/i2c_tiny_usb for hardware details.
1314 This driver can also be built as a module. If so, the module
1315 will be called i2c-tiny-usb.
1317 config I2C_VIPERBOARD
1318 tristate "Viperboard I2C master support"
1319 depends on MFD_VIPERBOARD && USB
1321 Say yes here to access the I2C part of the Nano River
1322 Technologies Viperboard as I2C master.
1323 See viperboard API specification and Nano
1324 River Tech's viperboard.h for detailed meaning
1325 of the module parameters.
1327 comment "Other I2C/SMBus bus drivers"
1330 tristate "Acorn IOC/IOMD I2C bus support"
1331 depends on ARCH_ACORN
1335 Say yes if you want to support the I2C bus on Acorn platforms.
1337 If you don't know, say Y.
1340 tristate "Elektor ISA card"
1341 depends on ISA && HAS_IOPORT_MAP && BROKEN_ON_SMP
1344 This supports the PCF8584 ISA bus I2C adapter. Say Y if you own
1347 This support is also available as a module. If so, the module
1348 will be called i2c-elektor.
1351 tristate "ICY Zorro card"
1355 This supports the PCF8584 Zorro bus I2C adapter, known as ICY.
1356 Say Y if you own such an adapter.
1358 This support is also available as a module. If so, the module
1359 will be called i2c-icy.
1361 If you have a 2019 edition board with an LTC2990 sensor at address
1362 0x4c, loading the module 'ltc2990' is sufficient to enable it.
1365 tristate "Mellanox I2C driver"
1366 depends on X86_64 || COMPILE_TEST
1368 This exposes the Mellanox platform I2C busses to the linux I2C layer
1369 for X86 based systems.
1370 Controller is implemented as CPLD logic.
1372 This driver can also be built as a module. If so, the module will be
1373 called as i2c-mlxcpld.
1376 tristate "PCA9564/PCA9665 on an ISA bus"
1380 This driver supports ISA boards using the Philips PCA9564/PCA9665
1381 parallel bus to I2C bus controller.
1383 This driver can also be built as a module. If so, the module
1384 will be called i2c-pca-isa.
1386 This device is almost undetectable and using this driver on a
1387 system which doesn't have this device will result in long
1388 delays when I2C/SMBus chip drivers are loaded (e.g. at boot
1389 time). If unsure, say N.
1392 tristate "SiByte SMBus interface"
1393 depends on SIBYTE_SB1xxx_SOC
1395 Supports the SiByte SOC on-chip I2C interfaces (2 channels).
1397 config I2C_CROS_EC_TUNNEL
1398 tristate "ChromeOS EC tunnel I2C bus"
1401 If you say yes here you get an I2C bus that will tunnel i2c commands
1402 through to the other side of the ChromeOS EC to the i2c bus
1403 connected there. This will work whatever the interface used to
1404 talk to the EC (SPI, I2C or LPC).
1406 config I2C_XGENE_SLIMPRO
1407 tristate "APM X-Gene SoC I2C SLIMpro devices support"
1408 depends on ARCH_XGENE && MAILBOX
1410 Enable I2C bus access using the APM X-Gene SoC SLIMpro
1411 co-processor. The I2C device access the I2C bus via the X-Gene
1412 to SLIMpro (On chip coprocessor) mailbox mechanism.
1416 tristate "Geode ACCESS.bus support"
1417 depends on X86_32 && PCI
1419 Enable the use of the ACCESS.bus controllers on the Geode SCx200 and
1420 SC1100 processors and the CS5535 and CS5536 Geode companion devices.
1422 If you don't know what to do here, say N.
1424 This support is also available as a module. If so, the module
1425 will be called scx200_acb.
1428 tristate "IBM OPAL I2C driver"
1429 depends on PPC_POWERNV
1432 This exposes the PowerNV platform i2c busses to the linux i2c layer,
1433 the driver is based on the OPAL interfaces.
1435 This driver can also be built as a module. If so, the module will be
1439 tristate "FSI I2C driver"
1442 Driver for FSI bus attached I2C masters. These are I2C masters that
1443 are connected to the system over an FSI bus, instead of the more
1444 common PCI or MMIO interface.
1446 This driver can also be built as a module. If so, the module will be
1450 tristate "Virtio I2C Adapter"
1453 If you say yes to this option, support will be included for the virtio
1454 I2C adapter driver. The hardware can be emulated by any device model
1455 software according to the virtio protocol.
1457 This driver can also be built as a module. If so, the module
1458 will be called i2c-virtio.