serial: sh-sci: fix DMA build by including dma-mapping.h

Include dma-mapping.h to fix build of the sh-sci driver on
SH-Mobile ARM (sh73a0) when CONFIG_SERIAL_SH_SCI_DMA=y:

drivers/tty/serial/sh-sci.c: In function 'sci_rx_dma_release':
drivers/tty/serial/sh-sci.c:1182:3: error: implicit declaration of function 'dma_free_coherent'
drivers/tty/serial/sh-sci.c: In function 'work_fn_tx':
drivers/tty/serial/sh-sci.c:1333:2: error: implicit declaration of function 'dma_sync_sg_for_device'
drivers/tty/serial/sh-sci.c: In function 'sci_request_dma':
drivers/tty/serial/sh-sci.c:1498:3: error: implicit declaration of function 'dma_map_sg'
drivers/tty/serial/sh-sci.c:1527:3: error: implicit declaration of function 'dma_alloc_coherent'
drivers/tty/serial/sh-sci.c:1527:10: warning: assignment makes pointer from integer without a cast
make[3]: *** [drivers/tty/serial/sh-sci.o] Error 1
make[2]: *** [drivers/tty/serial] Error 2
make[1]: *** [drivers/tty] Error 2
make: *** [drivers] Error 2

Signed-off-by: Magnus Damm <damm@opensource.se>
Tested-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 522f69d3c8ae2aa890c0da890fa862cb39cc74b9..38a81ae9b7df9e34410215a18c76a132c9ae123b 100644 (file)
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -47,6 +47,7 @@
 #include <linux/ctype.h>
 #include <linux/err.h>
 #include <linux/dmaengine.h>
+#include <linux/dma-mapping.h>
 #include <linux/scatterlist.h>
 #include <linux/slab.h>