drivers/i2c/muxes/Kconfig

   1 #
   2 # Multiplexer I2C chip drivers configuration
   3 #
   4
   5 menu "Multiplexer I2C Chip support"
   6         depends on I2C_MUX
   7
   8 config I2C_ARB_GPIO_CHALLENGE
   9         tristate "GPIO-based I2C arbitration"
  10         depends on GPIOLIB || COMPILE_TEST
  11         depends on OF
  12         help
  13           If you say yes to this option, support will be included for an
  14           I2C multimaster arbitration scheme using GPIOs and a challenge &
  15           response mechanism where masters have to claim the bus by asserting
  16           a GPIO.
  17
  18           This driver can also be built as a module.  If so, the module
  19           will be called i2c-arb-gpio-challenge.
  20
  21 config I2C_MUX_GPIO
  22         tristate "GPIO-based I2C multiplexer"
  23         depends on GPIOLIB
  24         help
  25           If you say yes to this option, support will be included for a
  26           GPIO based I2C multiplexer. This driver provides access to
  27           I2C busses connected through a MUX, which is controlled
  28           through GPIO pins.
  29
  30           This driver can also be built as a module.  If so, the module
  31           will be called i2c-mux-gpio.
  32
  33 config I2C_MUX_PCA9541
  34         tristate "NXP PCA9541 I2C Master Selector"
  35         help
  36           If you say yes here you get support for the NXP PCA9541
  37           I2C Master Selector.
  38
  39           This driver can also be built as a module.  If so, the module
  40           will be called i2c-mux-pca9541.
  41
  42 config I2C_MUX_PCA954x
  43         tristate "Philips PCA954x I2C Mux/switches"
  44         depends on GPIOLIB || COMPILE_TEST
  45         help
  46           If you say yes here you get support for the Philips PCA954x
  47           I2C mux/switch devices.
  48
  49           This driver can also be built as a module.  If so, the module
  50           will be called i2c-mux-pca954x.
  51
  52 config I2C_MUX_PINCTRL
  53         tristate "pinctrl-based I2C multiplexer"
  54         depends on PINCTRL
  55         help
  56           If you say yes to this option, support will be included for an I2C
  57           multiplexer that uses the pinctrl subsystem, i.e. pin multiplexing.
  58           This is useful for SoCs whose I2C module's signals can be routed to
  59           different sets of pins at run-time.
  60
  61           This driver can also be built as a module. If so, the module will be
  62           called pinctrl-i2cmux.
  63
  64 config I2C_MUX_REG
  65         tristate "Register-based I2C multiplexer"
  66         help
  67           If you say yes to this option, support will be included for a
  68           register based I2C multiplexer. This driver provides access to
  69           I2C busses connected through a MUX, which is controlled
  70           by a single register.
  71
  72           This driver can also be built as a module.  If so, the module
  73           will be called i2c-mux-reg.
  74
  75 config I2C_DEMUX_PINCTRL
  76         tristate "pinctrl-based I2C demultiplexer"
  77         depends on PINCTRL && OF
  78         select OF_DYNAMIC
  79         help
  80           If you say yes to this option, support will be included for an I2C
  81           demultiplexer that uses the pinctrl subsystem. This is useful if you
  82           want to change the I2C master at run-time depending on features.
  83
  84 endmenu