serial: sh-sci: Kill off some DMA ifdeffery.

There's nothing worth hiding under the ifdef in the platform DMA
definitions, and we certainly don't want board code adding this in to
their platform data definitions, so we always expose the slave rx/tx
and device pointer members instead.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

drivers/serial/sh-sci.c

@@ -1423,6 +1423,14 @@ static void sci_free_dma(struct uart_port *port)
 	if (s->chan_rx)
 		sci_rx_dma_release(s, false);
 }
+#else
+static inline void sci_request_dma(struct uart_port *port)
+{
+}
+
+static inline void sci_free_dma(struct uart_port *port)
+{
+}
 #endif
 
 static int sci_startup(struct uart_port *port)
@@ -1435,9 +1443,7 @@ static int sci_startup(struct uart_port *port)
 		s->enable(port);
 
 	sci_request_irq(s);
-#ifdef CONFIG_SERIAL_SH_SCI_DMA
 	sci_request_dma(port);
-#endif
 	sci_start_tx(port);
 	sci_start_rx(port);
 
@@ -1452,9 +1458,7 @@ static void sci_shutdown(struct uart_port *port)
 
 	sci_stop_rx(port);
 	sci_stop_tx(port);
-#ifdef CONFIG_SERIAL_SH_SCI_DMA
 	sci_free_dma(port);
-#endif
 	sci_free_irq(s);
 
 	if (s->disable)
@@ -1726,11 +1730,9 @@ static int __devinit sci_init_single(struct platform_device *dev,
 	 */
 	port->irq		= p->irqs[SCIx_TXI_IRQ];
 
-#ifdef CONFIG_SERIAL_SH_SCI_DMA
 	if (p->dma_dev)
 		dev_dbg(port->dev, "DMA device %p, tx %d, rx %d\n",
 			p->dma_dev, p->dma_slave_tx, p->dma_slave_rx);
-#endif
 
 	return 0;
 }

include/linux/serial_sci.h

@@ -58,10 +58,8 @@ struct plat_sci_port {
 
 	struct device	*dma_dev;
 
-#ifdef CONFIG_SERIAL_SH_SCI_DMA
-	unsigned int dma_slave_tx;
-	unsigned int dma_slave_rx;
-#endif
+	unsigned int	dma_slave_tx;
+	unsigned int	dma_slave_rx;
 };
 
 #endif /* __LINUX_SERIAL_SCI_H */