How come, USB Type-C port will magically start working if there is no proper support for this in the mainline kernel for this board family? Even if kernel version is declared as stable, this doesn't mean that 100% of the "expected" functionality will work on 100% of the platforms. If you decided to base your work on the mainline kernel versions for this board, you should already know about hardware limitations related to the presence of proprietary vendor's drivers that are not really maintained by the vendor.
