/* Request the memory region(s) being used by 'port'  */
static int pl010_request_port(struct uart_port *port)
/* Request the memory region(s) being used by 'port'  */
static int pl010_request_port(struct uart_port *port)
{
	return request_mem_region(port->mapbase, UART_PORT_SIZE, "uart-pl010")
			!= NULL ? 0 : -EBUSY;
}