path: root/drivers/i2c/busses/Kconfig

#
# Sensor device configuration
#

menu "I2C Hardware Bus support"

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 && EXPERIMENTAL
	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 && EXPERIMENTAL
	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_I801
	tristate "Intel 82801 (ICH/PCH)"
	depends on PCI
	select CHECK_SIGNATURE if X86 && DMI
	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)

	  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_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
	    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_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 && EXPERIMENTAL
	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_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"
	depends on PCI
	help
	  If you say yes to this option, support will be included for the
	  SiS630 and SiS730 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 && EXPERIMENTAL
	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"
	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

	  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 && EXPERIMENTAL
	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_AT91
	tristate "Atmel AT91 I2C Two-Wire interface (TWI)"
	depends on ARCH_AT91 && EXPERIMENTAL
	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_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_BLACKFIN_TWI
	tristate "Blackfin TWI I2C support"
	depends on BLACKFIN
	depends on !BF561 && !BF531 && !BF532 && !BF533
	help
	  This is the I2C bus driver for Blackfin on-chip TWI interface.

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

config I2C_BLACKFIN_TWI_CLK_KHZ
	int "Blackfin TWI I2C clock (kHz)"
	depends on I2C_BLACKFIN_TWI
	range 21 400
	default 50
	help
	  The unit of the TWI clock is kHz.

config I2C_CPM
	tristate "Freescale CPM1 or CPM2 (MPC8xx/826x)"
	depends on (CPM1 || CPM2) && OF_I2C
	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
	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_PLATFORM
	tristate "Synopsys DesignWare Platform"
	depends on HAVE_CLK
	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-platform.

config I2C_DESIGNWARE_PCI
	tristate "Synopsys DesignWare PCI"
	depends on PCI
	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_EG20T
	tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) I2C"
	depends on PCI
	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(Inpu