treewide: remove redundant IS_ERR() before error code check

[linux/fpc-iii.git] / drivers / i2c / busses / Kconfig

# SPDX-License-Identifier: GPL-2.0-only
#
# Sensor device configuration
#

menu "I2C Hardware Bus support"
        depends on HAS_IOMEM

comment "PC SMBus host controller drivers"
        depends on PCI

config I2C_ALI1535
        tristate "ALI 1535"
        depends on PCI
        help
          If you say yes to this option, support will be included for the SMB
          Host controller on Acer Labs Inc. (ALI) M1535 South Bridges.  The SMB
          controller is part of the 7101 device, which is an ACPI-compliant
          Power Management Unit (PMU).

          This driver can also be built as a module.  If so, the module
          will be called i2c-ali1535.

config I2C_ALI1563
        tristate "ALI 1563"
        depends on PCI
        help
          If you say yes to this option, support will be included for the SMB
          Host controller on Acer Labs Inc. (ALI) M1563 South Bridges.  The SMB
          controller is part of the 7101 device, which is an ACPI-compliant
          Power Management Unit (PMU).

          This driver can also be built as a module.  If so, the module
          will be called i2c-ali1563.

config I2C_ALI15X3
        tristate "ALI 15x3"
        depends on PCI
        help
          If you say yes to this option, support will be included for the
          Acer Labs Inc. (ALI) M1514 and M1543 motherboard I2C interfaces.

          This driver can also be built as a module.  If so, the module
          will be called i2c-ali15x3.

config I2C_AMD756
        tristate "AMD 756/766/768/8111 and nVidia nForce"
        depends on PCI
        help
          If you say yes to this option, support will be included for the AMD
          756/766/768 mainboard I2C interfaces.  The driver also includes
          support for the first (SMBus 1.0) I2C interface of the AMD 8111 and
          the nVidia nForce I2C interface.

          This driver can also be built as a module.  If so, the module
          will be called i2c-amd756.

config I2C_AMD756_S4882
        tristate "SMBus multiplexing on the Tyan S4882"
        depends on I2C_AMD756 && X86
        help
          Enabling this option will add specific SMBus support for the Tyan
          S4882 motherboard.  On this 4-CPU board, the SMBus is multiplexed
          over 8 different channels, where the various memory module EEPROMs
          and temperature sensors live.  Saying yes here will give you access
          to these in addition to the trunk.

          This driver can also be built as a module.  If so, the module
          will be called i2c-amd756-s4882.

config I2C_AMD8111
        tristate "AMD 8111"
        depends on PCI
        help
          If you say yes to this option, support will be included for the
          second (SMBus 2.0) AMD 8111 mainboard I2C interface.

          This driver can also be built as a module.  If so, the module
          will be called i2c-amd8111.

config I2C_AMD_MP2
        tristate "AMD MP2 PCIe"
        depends on PCI && ACPI
        help
          If you say yes to this option, support will be included for the AMD
          MP2 PCIe I2C adapter.

          This driver can also be built as modules.  If so, the modules will
          be called i2c-amd-mp2-pci and i2c-amd-mp2-plat.

config I2C_HIX5HD2
        tristate "Hix5hd2 high-speed I2C driver"
        depends on ARCH_HISI || ARCH_HIX5HD2 || COMPILE_TEST
        help
          Say Y here to include support for the high-speed I2C controller
          used in HiSilicon hix5hd2 SoCs.

          This driver can also be built as a module. If so, the module
          will be called i2c-hix5hd2.

config I2C_I801
        tristate "Intel 82801 (ICH/PCH)"
        depends on PCI
        select CHECK_SIGNATURE if X86 && DMI
        select I2C_SMBUS
        help
          If you say yes to this option, support will be included for the Intel
          801 family of mainboard I2C interfaces.  Specifically, the following
          versions of the chipset are supported:
            82801AA
            82801AB
            82801BA
            82801CA/CAM
            82801DB
            82801EB/ER (ICH5/ICH5R)
            6300ESB
            ICH6
            ICH7
            ESB2
            ICH8
            ICH9
            EP80579 (Tolapai)
            ICH10
            5/3400 Series (PCH)
            6 Series (PCH)
            Patsburg (PCH)
            DH89xxCC (PCH)
            Panther Point (PCH)
            Lynx Point (PCH)
            Avoton (SOC)
            Wellsburg (PCH)
            Coleto Creek (PCH)
            Wildcat Point (PCH)
            BayTrail (SOC)
            Braswell (SOC)
            Sunrise Point (PCH)
            Kaby Lake (PCH)
            DNV (SOC)
            Broxton (SOC)
            Lewisburg (PCH)
            Gemini Lake (SOC)
            Cannon Lake (PCH)
            Cedar Fork (PCH)
            Ice Lake (PCH)
            Comet Lake (PCH)
            Elkhart Lake (PCH)
            Tiger Lake (PCH)
            Jasper Lake (SOC)

          This driver can also be built as a module.  If so, the module
          will be called i2c-i801.

config I2C_ISCH
        tristate "Intel SCH SMBus 1.0"
        depends on PCI
        select LPC_SCH
        help
          Say Y here if you want to use SMBus controller on the Intel SCH
          based systems.

          This driver can also be built as a module. If so, the module
          will be called i2c-isch.

config I2C_ISMT
        tristate "Intel iSMT SMBus Controller"
        depends on PCI && X86
        help
          If you say yes to this option, support will be included for the Intel
          iSMT SMBus host controller interface.

          This driver can also be built as a module.  If so, the module will be
          called i2c-ismt.

config I2C_PIIX4
        tristate "Intel PIIX4 and compatible (ATI/AMD/Serverworks/Broadcom/SMSC)"
        depends on PCI
        help
          If you say yes to this option, support will be included for the Intel
          PIIX4 family of mainboard I2C interfaces.  Specifically, the following
          versions of the chipset are supported (note that Serverworks is part
          of Broadcom):
            Intel PIIX4
            Intel 440MX
            ATI IXP200
            ATI IXP300
            ATI IXP400
            ATI SB600
            ATI SB700/SP5100
            ATI SB800
            AMD Hudson-2
            AMD ML
            AMD CZ
            Hygon CZ
            Serverworks OSB4
            Serverworks CSB5
            Serverworks CSB6
            Serverworks HT-1000
            Serverworks HT-1100
            SMSC Victory66

          Some AMD chipsets contain two PIIX4-compatible SMBus
          controllers. This driver will attempt to use both controllers
          on the SB700/SP5100, if they have been initialized by the BIOS.

          This driver can also be built as a module.  If so, the module
          will be called i2c-piix4.

config I2C_CHT_WC
        tristate "Intel Cherry Trail Whiskey Cove PMIC smbus controller"
        depends on INTEL_SOC_PMIC_CHTWC
        help
          If you say yes to this option, support will be included for the
          SMBus controller found in the Intel Cherry Trail Whiskey Cove PMIC
          found on some Intel Cherry Trail systems.

          Note this controller is hooked up to a TI bq24292i charger-IC,
          combined with a FUSB302 Type-C port-controller as such it is advised
          to also select CONFIG_TYPEC_FUSB302=m.

config I2C_NFORCE2
        tristate "Nvidia nForce2, nForce3 and nForce4"
        depends on PCI
        help
          If you say yes to this option, support will be included for the Nvidia
          nForce2, nForce3 and nForce4 families of mainboard I2C interfaces.

          This driver can also be built as a module.  If so, the module
          will be called i2c-nforce2.

config I2C_NFORCE2_S4985
        tristate "SMBus multiplexing on the Tyan S4985"
        depends on I2C_NFORCE2 && X86
        help
          Enabling this option will add specific SMBus support for the Tyan
          S4985 motherboard.  On this 4-CPU board, the SMBus is multiplexed
          over 4 different channels, where the various memory module EEPROMs
          live.  Saying yes here will give you access to these in addition
          to the trunk.

          This driver can also be built as a module.  If so, the module
          will be called i2c-nforce2-s4985.

config I2C_NVIDIA_GPU
        tristate "NVIDIA GPU I2C controller"
        depends on PCI
        help
          If you say yes to this option, support will be included for the
          NVIDIA GPU I2C controller which is used to communicate with the GPU's
          Type-C controller. This driver can also be built as a module called
          i2c-nvidia-gpu.

config I2C_SIS5595
        tristate "SiS 5595"
        depends on PCI
        help
          If you say yes to this option, support will be included for the
          SiS5595 SMBus (a subset of I2C) interface.

          This driver can also be built as a module.  If so, the module
          will be called i2c-sis5595.

config I2C_SIS630
        tristate "SiS 630/730/964"
        depends on PCI
        help
          If you say yes to this option, support will be included for the
          SiS630, SiS730 and SiS964 SMBus (a subset of I2C) interface.

          This driver can also be built as a module.  If so, the module
          will be called i2c-sis630.

config I2C_SIS96X
        tristate "SiS 96x"
        depends on PCI
        help
          If you say yes to this option, support will be included for the SiS
          96x SMBus (a subset of I2C) interfaces.  Specifically, the following
          chipsets are supported:
            645/961
            645DX/961
            645DX/962
            648/961
            650/961
            735
            745

          This driver can also be built as a module.  If so, the module
          will be called i2c-sis96x.

config I2C_VIA
        tristate "VIA VT82C586B"
        depends on PCI
        select I2C_ALGOBIT
        help
          If you say yes to this option, support will be included for the VIA
          82C586B I2C interface

          This driver can also be built as a module.  If so, the module
          will be called i2c-via.

config I2C_VIAPRO
        tristate "VIA VT82C596/82C686/82xx and CX700/VX8xx/VX900"
        depends on PCI
        help
          If you say yes to this option, support will be included for the VIA
          VT82C596 and later SMBus interface.  Specifically, the following
          chipsets are supported:
            VT82C596A/B
            VT82C686A/B
            VT8231
            VT8233/A
            VT8235
            VT8237R/A/S
            VT8251
            CX700
            VX800/VX820
            VX855/VX875
            VX900

          This driver can also be built as a module.  If so, the module
          will be called i2c-viapro.

if ACPI

comment "ACPI drivers"

config I2C_SCMI
        tristate "SMBus Control Method Interface"
        help
          This driver supports the SMBus Control Method Interface. It needs the
          BIOS to declare ACPI control methods as described in the SMBus Control
          Method Interface specification.

          To compile this driver as a module, choose M here:
          the module will be called i2c-scmi.

endif # ACPI

comment "Mac SMBus host controller drivers"
        depends on PPC_CHRP || PPC_PMAC

config I2C_HYDRA
        tristate "CHRP Apple Hydra Mac I/O I2C interface"
        depends on PCI && PPC_CHRP
        select I2C_ALGOBIT
        help
          This supports the use of the I2C interface in the Apple Hydra Mac
          I/O chip on some CHRP machines (e.g. the LongTrail).  Say Y if you
          have such a machine.

          This support is also available as a module.  If so, the module
          will be called i2c-hydra.

config I2C_POWERMAC
        tristate "Powermac I2C interface"
        depends on PPC_PMAC
        default y
        help
          This exposes the various PowerMac i2c interfaces to the linux i2c
          layer and to userland. It is used by various drivers on the PowerMac
          platform, and should generally be enabled.

          This support is also available as a module.  If so, the module
          will be called i2c-powermac.

comment "I2C system bus drivers (mostly embedded / system-on-chip)"

config I2C_ALTERA
        tristate "Altera Soft IP I2C"
        depends on (ARCH_SOCFPGA || NIOS2) && OF
        help
          If you say yes to this option, support will be included for the
          Altera Soft IP I2C interfaces on SoCFPGA and Nios2 architectures.

          This driver can also be built as a module.  If so, the module
          will be called i2c-altera.

config I2C_ASPEED
        tristate "Aspeed I2C Controller"
        depends on ARCH_ASPEED || COMPILE_TEST
        help
          If you say yes to this option, support will be included for the
          Aspeed I2C controller.

          This driver can also be built as a module.  If so, the module
          will be called i2c-aspeed.

config I2C_AT91
        tristate "Atmel AT91 I2C Two-Wire interface (TWI)"
        depends on ARCH_AT91
        help
          This supports the use of the I2C interface on Atmel AT91
          processors.

          A serious problem is that there is no documented way to issue
          repeated START conditions for more than two messages, as needed
          to support combined I2C messages.  Use the i2c-gpio driver
          unless your system can cope with this limitation.

          Caution! at91rm9200, at91sam9261, at91sam9260, at91sam9263 devices
          don't have clock stretching in transmission mode. For that reason,
          you can encounter underrun issues causing premature stop sendings if
          the latency to fill the transmission register is too long. If you
          are facing this situation, use the i2c-gpio driver.

config I2C_AT91_SLAVE_EXPERIMENTAL
        tristate "Microchip AT91 I2C experimental slave mode"
        depends on I2C_AT91
        select I2C_SLAVE
        help
          If you say yes to this option, support for the slave mode will be
          added. Caution: do not use it for production. This feature has not
          been tested in a heavy way, help wanted.
          There are known bugs:
            - It can hang, on a SAMA5D4, after several transfers.
            - There are some mismtaches with a SAMA5D4 as slave and a SAMA5D2 as
            master.

config I2C_AU1550
        tristate "Au1550/Au1200/Au1300 SMBus interface"
        depends on MIPS_ALCHEMY
        help
          If you say yes to this option, support will be included for the
          Au1550/Au1200/Au1300 SMBus interface.

          This driver can also be built as a module.  If so, the module
          will be called i2c-au1550.

config I2C_AXXIA
        tristate "Axxia I2C controller"
        depends on ARCH_AXXIA || COMPILE_TEST
        default ARCH_AXXIA
        select I2C_SLAVE
        help
          Say yes if you want to support the I2C bus on Axxia platforms.

          Please note that this controller is limited to transfers of maximum
          255 bytes in length. Any attempt to to a larger transfer will return
          an error.

config I2C_BCM2835
        tristate "Broadcom BCM2835 I2C controller"
        depends on ARCH_BCM2835 || ARCH_BRCMSTB
        help
          If you say yes to this option, support will be included for the
          BCM2835 I2C controller.

          If you don't know what to do here, say N.

          This support is also available as a module.  If so, the module
          will be called i2c-bcm2835.

config I2C_BCM_IPROC
        tristate "Broadcom iProc I2C controller"
        depends on ARCH_BCM_IPROC || COMPILE_TEST
        default ARCH_BCM_IPROC
        select I2C_SLAVE
        help
          If you say yes to this option, support will be included for the
          Broadcom iProc I2C controller.

          If you don't know what to do here, say N.

config I2C_BCM_KONA
        tristate "BCM Kona I2C adapter"
        depends on ARCH_BCM_MOBILE
        default y
        help
          If you say yes to this option, support will be included for the
          I2C interface on the Broadcom Kona family of processors.

          If you do not need KONA I2C interface, say N.

config I2C_BRCMSTB
        tristate "BRCM Settop/DSL I2C controller"
        depends on ARCH_BRCMSTB || BMIPS_GENERIC || ARCH_BCM_63XX || \
                   COMPILE_TEST
        default y
        help
          If you say yes to this option, support will be included for the
          I2C interface on the Broadcom Settop/DSL SoCs.

          If you do not need I2C interface, say N.

config I2C_CADENCE
        tristate "Cadence I2C Controller"
        depends on ARCH_ZYNQ || ARM64 || XTENSA
        help
          Say yes here to select Cadence I2C Host Controller. This controller is
          e.g. used by Xilinx Zynq.

config I2C_CBUS_GPIO
        tristate "CBUS I2C driver"
        depends on GPIOLIB || COMPILE_TEST
        help
          Support for CBUS access using I2C API. Mostly relevant for Nokia
          Internet Tablets (770, N800 and N810).

          This driver can also be built as a module.  If so, the module
          will be called i2c-cbus-gpio.

config I2C_CPM
        tristate "Freescale CPM1 or CPM2 (MPC8xx/826x)"
        depends on CPM1 || CPM2
        help
          This supports the use of the I2C interface on Freescale
          processors with CPM1 or CPM2.

          This driver can also be built as a module.  If so, the module
          will be called i2c-cpm.

config I2C_DAVINCI
        tristate "DaVinci I2C driver"
        depends on ARCH_DAVINCI || ARCH_KEYSTONE
        help
          Support for TI DaVinci I2C controller driver.

          This driver can also be built as a module.  If so, the module
          will be called i2c-davinci.

          Please note that this driver might be needed to bring up other
          devices such as DaVinci NIC.
          For details please see http://www.ti.com/davinci

config I2C_DESIGNWARE_CORE
        tristate

config I2C_DESIGNWARE_PLATFORM
        tristate "Synopsys DesignWare Platform"
        select I2C_DESIGNWARE_CORE
        depends on (ACPI && COMMON_CLK) || !ACPI
        help
          If you say yes to this option, support will be included for the
          Synopsys DesignWare I2C adapter.

          This driver can also be built as a module.  If so, the module
          will be called i2c-designware-platform.

config I2C_DESIGNWARE_SLAVE
        bool "Synopsys DesignWare Slave"
        select I2C_SLAVE
        depends on I2C_DESIGNWARE_PLATFORM
        help
          If you say yes to this option, support will be included for the
          Synopsys DesignWare I2C slave adapter.

          This is not a standalone module, this module compiles together with
          i2c-designware-core.

config I2C_DESIGNWARE_PCI
        tristate "Synopsys DesignWare PCI"
        depends on PCI
        select I2C_DESIGNWARE_CORE
        help
          If you say yes to this option, support will be included for the
          Synopsys DesignWare I2C adapter. Only master mode is supported.

          This driver can also be built as a module.  If so, the module
          will be called i2c-designware-pci.

config I2C_DESIGNWARE_BAYTRAIL
        bool "Intel Baytrail I2C semaphore support"
        depends on ACPI
        depends on (I2C_DESIGNWARE_PLATFORM=m && IOSF_MBI) || \
                   (I2C_DESIGNWARE_PLATFORM=y && IOSF_MBI=y)
        help
          This driver enables managed host access to the PMIC I2C bus on select
          Intel BayTrail platforms using the X-Powers AXP288 PMIC. It allows
          the host to request uninterrupted access to the PMIC's I2C bus from
          the platform firmware controlling it. You should say Y if running on
          a BayTrail system using the AXP288.

config I2C_DIGICOLOR
        tristate "Conexant Digicolor I2C driver"
        depends on ARCH_DIGICOLOR
        help
          Support for Conexant Digicolor SoCs (CX92755) I2C controller driver.

          This driver can also be built as a module.  If so, the module
          will be called i2c-digicolor.

config I2C_EFM32
        tristate "EFM32 I2C controller"
        depends on ARCH_EFM32 || COMPILE_TEST
        help
          This driver supports the i2c block found in Energy Micro's EFM32
          SoCs.

config I2C_EG20T
        tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) I2C"
        depends on PCI && (X86_32 || MIPS || COMPILE_TEST)
        help
          This driver is for PCH(Platform controller Hub) I2C of EG20T which
          is an IOH(Input/Output Hub) for x86 embedded processor.
          This driver can access PCH I2C bus device.

          This driver also can be used for LAPIS Semiconductor IOH(Input/
          Output Hub), ML7213, ML7223 and ML7831.
          ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
          for MP(Media Phone) use and ML7831 IOH is for general purpose use.
          ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
          ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.

config I2C_EMEV2
        tristate "EMMA Mobile series I2C adapter"
        depends on HAVE_CLK
        select I2C_SLAVE
        help
          If you say yes to this option, support will be included for the
          I2C interface on the Renesas Electronics EM/EV family of processors.

config I2C_EXYNOS5
        tristate "Exynos5 high-speed I2C driver"
        depends on ARCH_EXYNOS && OF
        default y
        help
          High-speed I2C controller on Exynos5 based Samsung SoCs.

config I2C_GPIO
        tristate "GPIO-based bitbanging I2C"
        depends on GPIOLIB || COMPILE_TEST
        select I2C_ALGOBIT
        help
          This is a very simple bitbanging I2C driver utilizing the
          arch-neutral GPIO API to control the SCL and SDA lines.

config I2C_GPIO_FAULT_INJECTOR
        bool "GPIO-based fault injector"
        depends on I2C_GPIO
        help
          This adds some functionality to the i2c-gpio driver which can inject
          faults to an I2C bus, so another bus master can be stress-tested.
          This is for debugging. If unsure, say 'no'.

config I2C_HIGHLANDER
        tristate "Highlander FPGA SMBus interface"
        depends on SH_HIGHLANDER
        help
          If you say yes to this option, support will be included for
          the SMBus interface located in the FPGA on various Highlander
          boards, particularly the R0P7780LC0011RL and R0P7785LC0011RL
          FPGAs. This is wholly unrelated to the SoC I2C.

          This driver can also be built as a module.  If so, the module
          will be called i2c-highlander.

config I2C_IBM_IIC
        tristate "IBM PPC 4xx on-chip I2C interface"
        depends on 4xx
        help
          Say Y here if you want to use IIC peripheral found on
          embedded IBM PPC 4xx based systems.

          This driver can also be built as a module.  If so, the module
          will be called i2c-ibm_iic.

config I2C_IMG
        tristate "Imagination Technologies I2C SCB Controller"
        depends on MIPS || COMPILE_TEST
        help
          Say Y here if you want to use the IMG I2C SCB controller,
          available on the TZ1090 and other IMG SoCs.

          This driver can also be built as a module.  If so, the module
          will be called i2c-img-scb.

config I2C_IMX
        tristate "IMX I2C interface"
        depends on ARCH_MXC || ARCH_LAYERSCAPE || COLDFIRE
        help
          Say Y here if you want to use the IIC bus controller on
          the Freescale i.MX/MXC, Layerscape or ColdFire processors.

          This driver can also be built as a module.  If so, the module
          will be called i2c-imx.

config I2C_IMX_LPI2C
        tristate "IMX Low Power I2C interface"
        depends on ARCH_MXC || COMPILE_TEST
        help
          Say Y here if you want to use the Low Power IIC bus controller
          on the Freescale i.MX processors.

          This driver can also be built as a module. If so, the module
          will be called i2c-imx-lpi2c.

config I2C_IOP3XX
        tristate "Intel IOPx3xx and IXP4xx on-chip I2C interface"
        depends on ARCH_IOP32X || ARCH_IXP4XX
        help
          Say Y here if you want to use the IIC bus controller on
          the Intel IOPx3xx I/O Processors or IXP4xx Network Processors.

          This driver can also be built as a module.  If so, the module
          will be called i2c-iop3xx.

config I2C_JZ4780
        tristate "JZ4780 I2C controller interface support"
        depends on MIPS || COMPILE_TEST
        help
         If you say yes to this option, support will be included for the
         Ingenic JZ4780 I2C controller.

         If you don't know what to do here, say N.

config I2C_KEMPLD
        tristate "Kontron COM I2C Controller"
        depends on MFD_KEMPLD
        help
          This enables support for the I2C bus interface on some Kontron ETX
          and COMexpress (ETXexpress) modules.

          This driver can also be built as a module. If so, the module
          will be called i2c-kempld.

config I2C_LPC2K
        tristate "I2C bus support for NXP LPC2K/LPC178x/18xx/43xx"
        depends on OF && (ARCH_LPC18XX || COMPILE_TEST)
        help
          This driver supports the I2C interface found several NXP
          devices including LPC2xxx, LPC178x/7x and LPC18xx/43xx.

          This driver can also be built as a module.  If so, the module
          will be called i2c-lpc2k.

config I2C_MESON
        tristate "Amlogic Meson I2C controller"
        depends on ARCH_MESON || COMPILE_TEST
        help
          If you say yes to this option, support will be included for the
          I2C interface on the Amlogic Meson family of SoCs.

config I2C_MPC
        tristate "MPC107/824x/85xx/512x/52xx/83xx/86xx"
        depends on PPC
        help
          If you say yes to this option, support will be included for the
          built-in I2C interface on the MPC107, Tsi107, MPC512x, MPC52xx,
          MPC8240, MPC8245, MPC83xx, MPC85xx and MPC8641 family processors.

          This driver can also be built as a module.  If so, the module
          will be called i2c-mpc.

config I2C_MT65XX
        tristate "MediaTek I2C adapter"
        depends on ARCH_MEDIATEK || COMPILE_TEST
        help
          This selects the MediaTek(R) Integrated Inter Circuit bus driver
          for MT65xx and MT81xx.
          If you want to use MediaTek(R) I2C interface, say Y or M here.
          If unsure, say N.

config I2C_MT7621
        tristate "MT7621/MT7628 I2C Controller"
        depends on (RALINK && (SOC_MT7620 || SOC_MT7621)) || COMPILE_TEST
        help
          Say Y here to include support for I2C controller in the
          MediaTek MT7621/MT7628 SoCs.

config I2C_MV64XXX
        tristate "Marvell mv64xxx I2C Controller"
        depends on MV64X60 || PLAT_ORION || ARCH_SUNXI || ARCH_MVEBU
        help
          If you say yes to this option, support will be included for the
          built-in I2C interface on the Marvell 64xxx line of host bridges.
          This driver is also used for Allwinner SoCs I2C controllers.

          This driver can also be built as a module.  If so, the module
          will be called i2c-mv64xxx.

config I2C_MXS
        tristate "Freescale i.MX28 I2C interface"
        depends on SOC_IMX28
        select STMP_DEVICE
        help
          Say Y here if you want to use the I2C bus controller on
          the Freescale i.MX28 processors.

          This driver can also be built as a module.  If so, the module
          will be called i2c-mxs.

config I2C_NOMADIK
        tristate "ST-Ericsson Nomadik/Ux500 I2C Controller"
        depends on ARM_AMBA
        help
          If you say yes to this option, support will be included for the
          I2C interface from ST-Ericsson's Nomadik and Ux500 architectures,
          as well as the STA2X11 PCIe I/O HUB.

config I2C_OCORES
        tristate "OpenCores I2C Controller"
        help
          If you say yes to this option, support will be included for the
          OpenCores I2C controller. For details see
          http://www.opencores.org/projects.cgi/web/i2c/overview

          This driver can also be built as a module.  If so, the module
          will be called i2c-ocores.

config I2C_OMAP
        tristate "OMAP I2C adapter"
        depends on ARCH_OMAP || ARCH_K3
        default y if MACH_OMAP_H3 || MACH_OMAP_OSK
        help
          If you say yes to this option, support will be included for the
          I2C interface on the Texas Instruments OMAP1/2 family of processors.
          Like OMAP1510/1610/1710/5912 and OMAP242x.
          For details see http://www.ti.com/omap.

config I2C_OWL
        tristate "Actions Semiconductor Owl I2C Controller"
        depends on ARCH_ACTIONS || COMPILE_TEST
        help
          Say Y here if you want to use the I2C bus controller on
          the Actions Semiconductor Owl SoC's.

config I2C_PASEMI
        tristate "PA Semi SMBus interface"
        depends on PPC_PASEMI && PCI
        help
          Supports the PA Semi PWRficient on-chip SMBus interfaces.

config I2C_PCA_PLATFORM
        tristate "PCA9564/PCA9665 as platform device"
        select I2C_ALGOPCA
        default n
        help
          This driver supports a memory mapped Philips PCA9564/PCA9665
          parallel bus to I2C bus controller.

          This driver can also be built as a module.  If so, the module
          will be called i2c-pca-platform.

config I2C_PMCMSP
        tristate "PMC MSP I2C TWI Controller"
        depends on PMC_MSP
        help
          This driver supports the PMC TWI controller on MSP devices.

          This driver can also be built as module. If so, the module
          will be called i2c-pmcmsp.

config I2C_PNX
        tristate "I2C bus support for Philips PNX and NXP LPC targets"
        depends on ARCH_LPC32XX
        help
          This driver supports the Philips IP3204 I2C IP block master and/or
          slave controller

          This driver can also be built as a module.  If so, the module
          will be called i2c-pnx.

config I2C_PUV3
        tristate "PKUnity v3 I2C bus support"
        depends on UNICORE32 && ARCH_PUV3
        select I2C_ALGOBIT
        help
          This driver supports the I2C IP inside the PKUnity-v3 SoC.
          This I2C bus controller is under AMBA/AXI bus.

          This driver can also be built as a module.  If so, the module
          will be called i2c-puv3.

config I2C_PXA
        tristate "Intel PXA2XX I2C adapter"
        depends on ARCH_PXA || ARCH_MMP || ARCH_MVEBU || (X86_32 && PCI && OF)
        help
          If you have devices in the PXA I2C bus, say yes to this option.
          This driver can also be built as a module.  If so, the module
          will be called i2c-pxa.

config I2C_PXA_PCI
        def_bool I2C_PXA && X86_32 && PCI && OF

config I2C_PXA_SLAVE
        bool "Intel PXA2XX I2C Slave comms support"
        depends on I2C_PXA && !X86_32
        select I2C_SLAVE
        help
          Support I2C slave mode communications on the PXA I2C bus.  This
          is necessary for systems where the PXA may be a target on the
          I2C bus.

config I2C_QCOM_GENI
        tristate "Qualcomm Technologies Inc.'s GENI based I2C controller"
        depends on ARCH_QCOM || COMPILE_TEST
        depends on QCOM_GENI_SE
        help
          This driver supports GENI serial engine based I2C controller in
          master mode on the Qualcomm Technologies Inc.'s SoCs. If you say
          yes to this option, support will be included for the built-in I2C
          interface on the Qualcomm Technologies Inc.'s SoCs.

          This driver can also be built as a module.  If so, the module
          will be called i2c-qcom-geni.

config I2C_QUP
        tristate "Qualcomm QUP based I2C controller"
        depends on ARCH_QCOM
        help
          If you say yes to this option, support will be included for the
          built-in I2C interface on the Qualcomm SoCs.

          This driver can also be built as a module.  If so, the module
          will be called i2c-qup.

config I2C_RIIC
        tristate "Renesas RIIC adapter"
        depends on ARCH_RENESAS || COMPILE_TEST
        help
          If you say yes to this option, support will be included for the
          Renesas RIIC I2C interface.

          This driver can also be built as a module.  If so, the module
          will be called i2c-riic.

config I2C_RK3X
        tristate "Rockchip RK3xxx I2C adapter"
        depends on OF && COMMON_CLK
        help
          Say Y here to include support for the I2C adapter in Rockchip RK3xxx
          SoCs.

          This driver can also be built as a module. If so, the module will
          be called i2c-rk3x.

config HAVE_S3C2410_I2C
        bool
        help
          This will include I2C support for Samsung SoCs. If you want to
          include I2C support for any machine, kindly select this in the
          respective Kconfig file.

config I2C_S3C2410
        tristate "S3C2410 I2C Driver"
        depends on HAVE_S3C2410_I2C
        help
          Say Y here to include support for I2C controller in the
          Samsung SoCs.

config I2C_SH7760
        tristate "Renesas SH7760 I2C Controller"
        depends on CPU_SUBTYPE_SH7760
        help
          This driver supports the 2 I2C interfaces on the Renesas SH7760.

          This driver can also be built as a module.  If so, the module
          will be called i2c-sh7760.

config I2C_SH_MOBILE
        tristate "SuperH Mobile I2C Controller"
        depends on ARCH_SHMOBILE || ARCH_RENESAS || COMPILE_TEST
        help
          If you say yes to this option, support will be included for the
          built-in I2C interface on the Renesas SH-Mobile processor.

          This driver can also be built as a module.  If so, the module
          will be called i2c-sh_mobile.

config I2C_SIMTEC
        tristate "Simtec Generic I2C interface"
        select I2C_ALGOBIT
        help
          If you say yes to this option, support will be included for
          the Simtec Generic I2C interface. This driver is for the
          simple I2C bus used on newer Simtec products for general
          I2C, such as DDC on the Simtec BBD2016A.

          This driver can also be built as a module. If so, the module
          will be called i2c-simtec.

config I2C_SIRF
        tristate "CSR SiRFprimaII I2C interface"
        depends on ARCH_SIRF
        help
          If you say yes to this option, support will be included for the
          CSR SiRFprimaII I2C interface.

          This driver can also be built as a module.  If so, the module
          will be called i2c-sirf.

config I2C_SPRD
        tristate "Spreadtrum I2C interface"
        depends on I2C=y && ARCH_SPRD
        help
          If you say yes to this option, support will be included for the
          Spreadtrum I2C interface.

config I2C_ST
        tristate "STMicroelectronics SSC I2C support"
        depends on ARCH_STI
        help
          Enable this option to add support for STMicroelectronics SoCs
          hardware SSC (Synchronous Serial Controller) as an I2C controller.

          This driver can also be built as module. If so, the module
          will be called i2c-st.

config I2C_STM32F4
        tristate "STMicroelectronics STM32F4 I2C support"
        depends on ARCH_STM32 || COMPILE_TEST
        help
          Enable this option to add support for STM32 I2C controller embedded
          in STM32F4 SoCs.

          This driver can also be built as module. If so, the module
          will be called i2c-stm32f4.

config I2C_STM32F7
        tristate "STMicroelectronics STM32F7 I2C support"
        depends on ARCH_STM32 || COMPILE_TEST
        select I2C_SLAVE
        help
          Enable this option to add support for STM32 I2C controller embedded
          in STM32F7 SoCs.

          This driver can also be built as module. If so, the module
          will be called i2c-stm32f7.

config I2C_STU300
        tristate "ST Microelectronics DDC I2C interface"
        depends on MACH_U300
        default y if MACH_U300
        help
          If you say yes to this option, support will be included for the
          I2C interface from ST Microelectronics simply called "DDC I2C"
          supporting both I2C and DDC, used in e.g. the U300 series
          mobile platforms.

          This driver can also be built as a module. If so, the module
          will be called i2c-stu300.

config I2C_SUN6I_P2WI
        tristate "Allwinner sun6i internal P2WI controller"
        depends on RESET_CONTROLLER
        depends on MACH_SUN6I || COMPILE_TEST
        help
          If you say yes to this option, support will be included for the
          P2WI (Push/Pull 2 Wire Interface) controller embedded in some sunxi
          SOCs.
          The P2WI looks like an SMBus controller (which supports only byte
          accesses), except that it only supports one slave device.
          This interface is used to connect to specific PMIC devices (like the
          AXP221).

config I2C_SYNQUACER
        tristate "Socionext SynQuacer I2C controller"
        depends on ARCH_SYNQUACER || COMPILE_TEST
        help
          Say Y here to include support for the I2C controller used in some
          Fujitsu and Socionext SoCs.

          This driver can also be built as a module. If so, the module
          will be called i2c-synquacer.

config I2C_TEGRA
        tristate "NVIDIA Tegra internal I2C controller"
        depends on ARCH_TEGRA
        help
          If you say yes to this option, support will be included for the
          I2C controller embedded in NVIDIA Tegra SOCs

config I2C_TEGRA_BPMP
        tristate "NVIDIA Tegra BPMP I2C controller"
        depends on TEGRA_BPMP
        default y
        help
          If you say yes to this option, support will be included for the I2C
          controller embedded in NVIDIA Tegra SoCs accessed via the BPMP.

          This I2C driver is a 'virtual' I2C driver. The real driver is part
          of the BPMP firmware, and this driver merely communicates with that
          real driver.

config I2C_UNIPHIER
        tristate "UniPhier FIFO-less I2C controller"
        depends on ARCH_UNIPHIER || COMPILE_TEST
        help
          If you say yes to this option, support will be included for
          the UniPhier FIFO-less I2C interface embedded in PH1-LD4, PH1-sLD8,
          or older UniPhier SoCs.

config I2C_UNIPHIER_F
        tristate "UniPhier FIFO-builtin I2C controller"
        depends on ARCH_UNIPHIER || COMPILE_TEST
        help
          If you say yes to this option, support will be included for
          the UniPhier FIFO-builtin I2C interface embedded in PH1-Pro4,
          PH1-Pro5, or newer UniPhier SoCs.

config I2C_VERSATILE
        tristate "ARM Versatile/Realview I2C bus support"
        depends on ARCH_MPS2 || ARCH_VERSATILE || ARCH_REALVIEW || ARCH_VEXPRESS || COMPILE_TEST
        select I2C_ALGOBIT
        help
          Say yes if you want to support the I2C serial bus on ARMs Versatile
          range of platforms.

          This driver can also be built as a module.  If so, the module
          will be called i2c-versatile.

config I2C_WMT
        tristate "Wondermedia WM8xxx SoC I2C bus support"
        depends on ARCH_VT8500
        help
          Say yes if you want to support the I2C bus on Wondermedia 8xxx-series
          SoCs.

          This driver can also be built as a module. If so, the module will be
          called i2c-wmt.

config I2C_OCTEON
        tristate "Cavium OCTEON I2C bus support"
        depends on CAVIUM_OCTEON_SOC
        help
          Say yes if you want to support the I2C serial bus on Cavium
          OCTEON SOC.

          This driver can also be built as a module.  If so, the module
          will be called i2c-octeon.

config I2C_THUNDERX
        tristate "Cavium ThunderX I2C bus support"
        depends on 64BIT && PCI && (ARM64 || COMPILE_TEST)
        select I2C_SMBUS
        help
          Say yes if you want to support the I2C serial bus on Cavium
          ThunderX SOC.

          This driver can also be built as a module.  If so, the module
          will be called i2c-thunderx.

config I2C_XILINX
        tristate "Xilinx I2C Controller"
        depends on HAS_IOMEM
        help
          If you say yes to this option, support will be included for the
          Xilinx I2C controller.

          This driver can also be built as a module.  If so, the module
          will be called xilinx_i2c.

config I2C_XLR
        tristate "Netlogic XLR and Sigma Designs I2C support"
        depends on CPU_XLR || ARCH_TANGO
        help
          This driver enables support for the on-chip I2C interface of
          the Netlogic XLR/XLS MIPS processors and Sigma Designs SOCs.

          This driver can also be built as a module.  If so, the module
          will be called i2c-xlr.

config I2C_XLP9XX
        tristate "XLP9XX I2C support"
        depends on CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST
        help
          This driver enables support for the on-chip I2C interface of
          the Broadcom XLP9xx/XLP5xx MIPS and Vulcan ARM64 processors.

          This driver can also be built as a module.  If so, the module will
          be called i2c-xlp9xx.

config I2C_RCAR
        tristate "Renesas R-Car I2C Controller"
        depends on ARCH_RENESAS || COMPILE_TEST
        select I2C_SLAVE
        help
          If you say yes to this option, support will be included for the
          R-Car I2C controller.

          This driver can also be built as a module.  If so, the module
          will be called i2c-rcar.

comment "External I2C/SMBus adapter drivers"

config I2C_DIOLAN_U2C
        tristate "Diolan U2C-12 USB adapter"
        depends on USB
        help
          If you say yes to this option, support will be included for Diolan
          U2C-12, a USB to I2C interface.

          This driver can also be built as a module.  If so, the module
          will be called i2c-diolan-u2c.

config I2C_DLN2
        tristate "Diolan DLN-2 USB I2C adapter"
        depends on MFD_DLN2
        help
         If you say yes to this option, support will be included for Diolan
         DLN2, a USB to I2C interface.

         This driver can also be built as a module.  If so, the module
         will be called i2c-dln2.

config I2C_PARPORT
        tristate "Parallel port adapter"
        depends on PARPORT
        select I2C_ALGOBIT
        select I2C_SMBUS
        help
          This supports parallel port I2C adapters such as the ones made by
          Philips or Velleman, Analog Devices evaluation boards, and more.
          Basically any adapter using the parallel port as an I2C bus with
          no extra chipset is supported by this driver, or could be.

          This driver is a replacement for (and was inspired by) an older
          driver named i2c-philips-par.  The new driver supports more devices,
          and makes it easier to add support for new devices.

          An adapter type parameter is now mandatory.  Please read the file
          Documentation/i2c/busses/i2c-parport.rst for details.

          Another driver exists, named i2c-parport-light, which doesn't depend
          on the parport driver.  This is meant for embedded systems. Don't say
          Y here if you intend to say Y or M there.

          This support is also available as a module.  If so, the module
          will be called i2c-parport.

config I2C_PARPORT_LIGHT
        tristate "Parallel port adapter (light)"
        select I2C_ALGOBIT
        select I2C_SMBUS
        help
          This supports parallel port I2C adapters such as the ones made by
          Philips or Velleman, Analog Devices evaluation boards, and more.
          Basically any adapter using the parallel port as an I2C bus with
          no extra chipset is supported by this driver, or could be.

          This driver is a light version of i2c-parport.  It doesn't depend
          on the parport driver, and uses direct I/O access instead.  This
          might be preferred on embedded systems where wasting memory for
          the clean but heavy parport handling is not an option.  The
          drawback is a reduced portability and the impossibility to
          daisy-chain other parallel port devices.

          Don't say Y here if you said Y or M to i2c-parport.  Saying M to
          both is possible but both modules should not be loaded at the same
          time.

          This support is also available as a module.  If so, the module
          will be called i2c-parport-light.

config I2C_ROBOTFUZZ_OSIF
        tristate "RobotFuzz Open Source InterFace USB adapter"
        depends on USB
        help
          If you say yes to this option, support will be included for the
          RobotFuzz Open Source InterFace USB to I2C interface.

          This driver can also be built as a module.  If so, the module
          will be called i2c-osif.

config I2C_TAOS_EVM
        tristate "TAOS evaluation module"
        depends on TTY
        select SERIO
        select SERIO_SERPORT
        default n
        help
          This supports TAOS evaluation modules on serial port. In order to
          use this driver, you will need the inputattach tool, which is part
          of the input-utils package.

          If unsure, say N.

          This support is also available as a module.  If so, the module
          will be called i2c-taos-evm.

config I2C_TINY_USB
        tristate "Tiny-USB adapter"
        depends on USB
        help
          If you say yes to this option, support will be included for the
          i2c-tiny-usb, a simple do-it-yourself USB to I2C interface. See
          http://www.harbaum.org/till/i2c_tiny_usb for hardware details.

          This driver can also be built as a module.  If so, the module
          will be called i2c-tiny-usb.

config I2C_VIPERBOARD
        tristate "Viperboard I2C master support"
        depends on MFD_VIPERBOARD && USB
        help
          Say yes here to access the I2C part of the Nano River
          Technologies Viperboard as I2C master.
          See viperboard API specification and Nano
          River Tech's viperboard.h for detailed meaning
          of the module parameters.

comment "Other I2C/SMBus bus drivers"

config I2C_ACORN
        tristate "Acorn IOC/IOMD I2C bus support"
        depends on ARCH_ACORN
        default y
        select I2C_ALGOBIT
        help
          Say yes if you want to support the I2C bus on Acorn platforms.

          If you don't know, say Y.

config I2C_ELEKTOR
        tristate "Elektor ISA card"
        depends on ISA && HAS_IOPORT_MAP && BROKEN_ON_SMP
        select I2C_ALGOPCF
        help
          This supports the PCF8584 ISA bus I2C adapter.  Say Y if you own
          such an adapter.

          This support is also available as a module.  If so, the module
          will be called i2c-elektor.

config I2C_ICY
        tristate "ICY Zorro card"
        depends on ZORRO
        select I2C_ALGOPCF
        help
          This supports the PCF8584 Zorro bus I2C adapter, known as ICY.
          Say Y if you own such an adapter.

          This support is also available as a module.  If so, the module
          will be called i2c-icy.

          If you have a 2019 edition board with an LTC2990 sensor at address
          0x4c, loading the module 'ltc2990' is sufficient to enable it.

config I2C_MLXCPLD
        tristate "Mellanox I2C driver"
        depends on X86_64
        help
          This exposes the Mellanox platform I2C busses to the linux I2C layer
          for X86 based systems.
          Controller is implemented as CPLD logic.

          This driver can also be built as a module. If so, the module will be
          called as i2c-mlxcpld.

config I2C_PCA_ISA
        tristate "PCA9564/PCA9665 on an ISA bus"
        depends on ISA
        select I2C_ALGOPCA
        default n
        help
          This driver supports ISA boards using the Philips PCA9564/PCA9665
          parallel bus to I2C bus controller.

          This driver can also be built as a module.  If so, the module
          will be called i2c-pca-isa.

          This device is almost undetectable and using this driver on a
          system which doesn't have this device will result in long
          delays when I2C/SMBus chip drivers are loaded (e.g. at boot
          time).  If unsure, say N.

config I2C_SIBYTE
        tristate "SiByte SMBus interface"
        depends on SIBYTE_SB1xxx_SOC
        help
          Supports the SiByte SOC on-chip I2C interfaces (2 channels).

config I2C_CROS_EC_TUNNEL
        tristate "ChromeOS EC tunnel I2C bus"
        depends on CROS_EC
        help
          If you say yes here you get an I2C bus that will tunnel i2c commands
          through to the other side of the ChromeOS EC to the i2c bus
          connected there. This will work whatever the interface used to
          talk to the EC (SPI, I2C or LPC).

config I2C_XGENE_SLIMPRO
        tristate "APM X-Gene SoC I2C SLIMpro devices support"
        depends on ARCH_XGENE && MAILBOX
        help
          Enable I2C bus access using the APM X-Gene SoC SLIMpro
          co-processor. The I2C device access the I2C bus via the X-Gene
          to SLIMpro (On chip coprocessor) mailbox mechanism.
          If unsure, say N.

config SCx200_ACB
        tristate "Geode ACCESS.bus support"
        depends on X86_32 && PCI
        help
          Enable the use of the ACCESS.bus controllers on the Geode SCx200 and
          SC1100 processors and the CS5535 and CS5536 Geode companion devices.

          If you don't know what to do here, say N.

          This support is also available as a module.  If so, the module
          will be called scx200_acb.

config I2C_OPAL
        tristate "IBM OPAL I2C driver"
        depends on PPC_POWERNV
        default y
        help
          This exposes the PowerNV platform i2c busses to the linux i2c layer,
          the driver is based on the OPAL interfaces.

          This driver can also be built as a module. If so, the module will be
          called as i2c-opal.

config I2C_ZX2967
        tristate "ZTE ZX2967 I2C support"
        depends on ARCH_ZX
        default y
        help
          Selecting this option will add ZX2967 I2C driver.
          This driver can also be built as a module. If so, the module will be
          called i2c-zx2967.

config I2C_FSI
        tristate "FSI I2C driver"
        depends on FSI
        help
          Driver for FSI bus attached I2C masters. These are I2C masters that
          are connected to the system over an FSI bus, instead of the more
          common PCI or MMIO interface.

          This driver can also be built as a module. If so, the module will be
          called as i2c-fsi.

endmenu