This driver can also be built as a module. If so, the module
will be called i2c-mux-reg.
+config I2C_DEMUX_PINCTRL
+ tristate "pinctrl-based I2C demultiplexer"
+ depends on PINCTRL && OF
+ select OF_DYNAMIC
+ help
+ If you say yes to this option, support will be included for an I2C
+ demultiplexer that uses the pinctrl subsystem. This is useful if you
+ want to change the I2C master at run-time depending on features.
+
endmenu