Kconfig 3.4 KB

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  1. #
  2. # Multiplexer I2C chip drivers configuration
  3. #
  4. menu "Multiplexer I2C Chip support"
  5. depends on I2C_MUX
  6. config I2C_ARB_GPIO_CHALLENGE
  7. tristate "GPIO-based I2C arbitration"
  8. depends on GPIOLIB || COMPILE_TEST
  9. depends on OF
  10. help
  11. If you say yes to this option, support will be included for an
  12. I2C multimaster arbitration scheme using GPIOs and a challenge &
  13. response mechanism where masters have to claim the bus by asserting
  14. a GPIO.
  15. This driver can also be built as a module. If so, the module
  16. will be called i2c-arb-gpio-challenge.
  17. config I2C_MUX_GPIO
  18. tristate "GPIO-based I2C multiplexer"
  19. depends on GPIOLIB
  20. help
  21. If you say yes to this option, support will be included for a
  22. GPIO based I2C multiplexer. This driver provides access to
  23. I2C busses connected through a MUX, which is controlled
  24. through GPIO pins.
  25. This driver can also be built as a module. If so, the module
  26. will be called i2c-mux-gpio.
  27. config I2C_MUX_LTC4306
  28. tristate "LTC LTC4306/5 I2C multiplexer"
  29. select GPIOLIB
  30. select REGMAP_I2C
  31. help
  32. If you say yes here you get support for the Analog Devices
  33. LTC4306 or LTC4305 I2C mux/switch devices.
  34. This driver can also be built as a module. If so, the module
  35. will be called i2c-mux-ltc4306.
  36. config I2C_MUX_PCA9541
  37. tristate "NXP PCA9541 I2C Master Selector"
  38. help
  39. If you say yes here you get support for the NXP PCA9541
  40. I2C Master Selector.
  41. This driver can also be built as a module. If so, the module
  42. will be called i2c-mux-pca9541.
  43. config I2C_MUX_PCA954x
  44. tristate "Philips PCA954x I2C Mux/switches"
  45. depends on GPIOLIB || COMPILE_TEST
  46. help
  47. If you say yes here you get support for the Philips PCA954x
  48. I2C mux/switch devices.
  49. This driver can also be built as a module. If so, the module
  50. will be called i2c-mux-pca954x.
  51. config I2C_MUX_PINCTRL
  52. tristate "pinctrl-based I2C multiplexer"
  53. depends on PINCTRL
  54. help
  55. If you say yes to this option, support will be included for an I2C
  56. multiplexer that uses the pinctrl subsystem, i.e. pin multiplexing.
  57. This is useful for SoCs whose I2C module's signals can be routed to
  58. different sets of pins at run-time.
  59. This driver can also be built as a module. If so, the module will be
  60. called pinctrl-i2cmux.
  61. config I2C_MUX_REG
  62. tristate "Register-based I2C multiplexer"
  63. depends on HAS_IOMEM
  64. help
  65. If you say yes to this option, support will be included for a
  66. register based I2C multiplexer. This driver provides access to
  67. I2C busses connected through a MUX, which is controlled
  68. by a single register.
  69. This driver can also be built as a module. If so, the module
  70. will be called i2c-mux-reg.
  71. config I2C_DEMUX_PINCTRL
  72. tristate "pinctrl-based I2C demultiplexer"
  73. depends on PINCTRL && OF
  74. select OF_DYNAMIC
  75. help
  76. If you say yes to this option, support will be included for an I2C
  77. demultiplexer that uses the pinctrl subsystem. This is useful if you
  78. want to change the I2C master at run-time depending on features.
  79. config I2C_MUX_MLXCPLD
  80. tristate "Mellanox CPLD based I2C multiplexer"
  81. help
  82. If you say yes to this option, support will be included for a
  83. CPLD based I2C multiplexer. This driver provides access to
  84. I2C busses connected through a MUX, which is controlled
  85. by a CPLD register.
  86. This driver can also be built as a module. If so, the module
  87. will be called i2c-mux-mlxcpld.
  88. endmenu