serial: sh-sci: Add DMA support.
Support using DMA for sending and receiving data over SCI(F) interfaces of
various SH SoCs.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/include/linux/serial_sci.h b/include/linux/serial_sci.h
index 1c297dd..1b177d29 100644
--- a/include/linux/serial_sci.h
+++ b/include/linux/serial_sci.h
@@ -2,6 +2,7 @@
#define __LINUX_SERIAL_SCI_H
#include <linux/serial_core.h>
+#include <asm/dmaengine.h>
/*
* Generic header for SuperH SCI(F) (used by sh/sh64/h8300 and related parts)
@@ -16,6 +17,8 @@
SCIx_NR_IRQS,
};
+struct device;
+
/*
* Platform device specific platform_data struct
*/
@@ -26,6 +29,9 @@
unsigned int type; /* SCI / SCIF / IRDA */
upf_t flags; /* UPF_* flags */
char *clk; /* clock string */
+ struct device *dma_dev;
+ enum sh_dmae_slave_chan_id dma_slave_tx;
+ enum sh_dmae_slave_chan_id dma_slave_rx;
};
#endif /* __LINUX_SERIAL_SCI_H */