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122 lines
3.9 KiB
122 lines
3.9 KiB
# 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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