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authorHeikki Krogerus <heikki.krogerus@linux.intel.com>2013-01-10 11:25:11 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-01-15 23:03:00 -0800
commit9ee4b83e51f741a645c43e61b9f3f8075ca0fdf4 (patch)
tree93d759187615cb57aa42825a2303dc4f4b0f430c /include
parent6a7320c4669fbf26a8e71a4c8af4101923152375 (diff)
serial: 8250: Add support for dmaengine
Add support for dmaengine API. The drivers can implement the struct uart_8250_dma member in struct uart_8250_port and 8250.c can take care of the rest. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/serial_8250.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h
index c490d20b3fb8..af47a8af6024 100644
--- a/include/linux/serial_8250.h
+++ b/include/linux/serial_8250.h
@@ -59,6 +59,8 @@ enum {
PLAT8250_DEV_SM501,
};
+struct uart_8250_dma;
+
/*
* This should be used by drivers which want to register
* their own 8250 ports without registering their own
@@ -91,6 +93,8 @@ struct uart_8250_port {
#define MSR_SAVE_FLAGS UART_MSR_ANY_DELTA
unsigned char msr_saved_flags;
+ struct uart_8250_dma *dma;
+
/* 8250 specific callbacks */
int (*dl_read)(struct uart_8250_port *);
void (*dl_write)(struct uart_8250_port *, int);