/* Get rid of a port on module removal  */
static void pmz_dispose_port(struct uart_pmac_port *uap)
/* Get rid of a port on module removal  */
static void pmz_dispose_port(struct uart_pmac_port *uap)
{
	struct device_node *np;
	np = uap->node;
	iounmap(uap->rx_dma_regs);
	iounmap(uap->tx_dma_regs);
	iounmap(uap->control_reg);
	uap->node = NULL;
	of_node_put(np);
	memset(uap, 0, sizeof(struct uart_pmac_port));
}