serial: sh-sci: Kill off unused membase kludge.

All users of the platform port data specify a mapbase where the driver
later derives the membase from. Now that UPF flags are taken in to
account for generic ioremapping we can kill off the port-specific membase
clobbering and simply use the generic paths.

This derives from a time when sh64 was not capable of using the generic
ioremap implementation and had employed early bolted DTLB mappings for
port access, which is no longer an issue.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

drivers/serial/sh-sci.c

@@ -1619,9 +1619,6 @@ static void sci_config_port(struct uart_port *port, int flags)
 
 	port->type = s->type;
 
-	if (port->membase)
-		return;
-
 	if (port->flags & UPF_IOREMAP) {
 		port->membase = ioremap_nocache(port->mapbase, 0x40);
 
@@ -1727,7 +1724,6 @@ static int __devinit sci_init_single(struct platform_device *dev,
 	init_timer(&sci_port->break_timer);
 
 	port->mapbase	= p->mapbase;
-	port->membase	= p->membase;
 
 	port->irq		= p->irqs[SCIx_TXI_IRQ];
 	port->flags		= p->flags;

include/linux/serial_sci.h

@@ -40,7 +40,6 @@ struct device;
  * Platform device specific platform_data struct
  */
 struct plat_sci_port {
-	void __iomem	*membase;		/* io cookie */
 	unsigned long	mapbase;		/* resource base */
 	unsigned int	irqs[SCIx_NR_IRQS];	/* ERI, RXI, TXI, BRI */
 	unsigned int	type;			/* SCI / SCIF / IRDA */