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Modern UARTs are able to provide information about their capabilities such as FIFO size. This allows the drivers to deliver this information to 8250.c when they are registering ports. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Jamie Iles <jamie@jamieiles.com> Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>