# SPDX-License-Identifier: GPL-2.0-only
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#
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# Multiplexer I2C chip drivers configuration
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#
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menu "Multiplexer I2C Chip support"
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depends on I2C_MUX
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config I2C_ARB_GPIO_CHALLENGE
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tristate "GPIO-based I2C arbitration"
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depends on GPIOLIB || COMPILE_TEST
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depends on OF || COMPILE_TEST
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help
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If you say yes to this option, support will be included for an
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I2C multimaster arbitration scheme using GPIOs and a challenge &
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response mechanism where masters have to claim the bus by asserting
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a GPIO.
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This driver can also be built as a module. If so, the module
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will be called i2c-arb-gpio-challenge.
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config I2C_MUX_GPIO
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tristate "GPIO-based I2C multiplexer"
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depends on GPIOLIB
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help
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If you say yes to this option, support will be included for a
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GPIO based I2C multiplexer. This driver provides access to
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I2C busses connected through a MUX, which is controlled
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through GPIO pins.
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This driver can also be built as a module. If so, the module
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will be called i2c-mux-gpio.
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config I2C_MUX_GPMUX
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tristate "General Purpose I2C multiplexer"
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select MULTIPLEXER
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depends on OF || COMPILE_TEST
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help
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If you say yes to this option, support will be included for a
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general purpose I2C multiplexer. This driver provides access to
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I2C busses connected through a MUX, which in turn is controlled
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by a MUX-controller from the MUX subsystem.
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This driver can also be built as a module. If so, the module
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will be called i2c-mux-gpmux.
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config I2C_MUX_LTC4306
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tristate "LTC LTC4306/5 I2C multiplexer"
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select GPIOLIB
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select REGMAP_I2C
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help
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If you say yes here you get support for the Analog Devices
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LTC4306 or LTC4305 I2C mux/switch devices.
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This driver can also be built as a module. If so, the module
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will be called i2c-mux-ltc4306.
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config I2C_MUX_PCA9541
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tristate "NXP PCA9541 I2C Master Selector"
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help
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If you say yes here you get support for the NXP PCA9541
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I2C Master Selector.
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This driver can also be built as a module. If so, the module
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will be called i2c-mux-pca9541.
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config I2C_MUX_PCA954x
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tristate "NXP PCA954x and PCA984x I2C Mux/switches"
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depends on GPIOLIB || COMPILE_TEST
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help
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If you say yes here you get support for the NXP PCA954x
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and PCA984x I2C mux/switch devices.
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This driver can also be built as a module. If so, the module
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will be called i2c-mux-pca954x.
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config I2C_MUX_PINCTRL
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tristate "pinctrl-based I2C multiplexer"
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depends on PINCTRL
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depends on OF || COMPILE_TEST
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help
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If you say yes to this option, support will be included for an I2C
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multiplexer that uses the pinctrl subsystem, i.e. pin multiplexing.
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This is useful for SoCs whose I2C module's signals can be routed to
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different sets of pins at run-time.
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This driver can also be built as a module. If so, the module will be
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called i2c-mux-pinctrl.
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config I2C_MUX_REG
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tristate "Register-based I2C multiplexer"
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depends on HAS_IOMEM
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help
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If you say yes to this option, support will be included for a
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register based I2C multiplexer. This driver provides access to
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I2C busses connected through a MUX, which is controlled
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by a single register.
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This driver can also be built as a module. If so, the module
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will be called i2c-mux-reg.
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config I2C_DEMUX_PINCTRL
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tristate "pinctrl-based I2C demultiplexer"
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depends on PINCTRL && OF
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select OF_DYNAMIC
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help
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If you say yes to this option, support will be included for an I2C
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demultiplexer that uses the pinctrl subsystem. This is useful if you
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want to change the I2C master at run-time depending on features.
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config I2C_MUX_MLXCPLD
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tristate "Mellanox CPLD based I2C multiplexer"
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help
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If you say yes to this option, support will be included for a
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CPLD based I2C multiplexer. This driver provides access to
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I2C busses connected through a MUX, which is controlled
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by a CPLD register.
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This driver can also be built as a module. If so, the module
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will be called i2c-mux-mlxcpld.
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endmenu
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