serial8250_do_set_divisor
serial8250_do_set_divisor(p, baud, quot);
serial8250_do_set_divisor(p, baud, quot);
serial8250_do_set_divisor(port, baud, quot);
EXPORT_SYMBOL_GPL(serial8250_do_set_divisor);
serial8250_do_set_divisor(port, baud, quot);
void serial8250_do_set_divisor(struct uart_port *port, unsigned int baud,