diff options
author | Heikki Krogerus <heikki.krogerus@linux.intel.com> | 2013-01-10 04:25:11 -0500 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-16 02:03:00 -0500 |
commit | 9ee4b83e51f741a645c43e61b9f3f8075ca0fdf4 (patch) | |
tree | 93d759187615cb57aa42825a2303dc4f4b0f430c /include/linux/serial_8250.h | |
parent | 6a7320c4669fbf26a8e71a4c8af4101923152375 (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/linux/serial_8250.h')
-rw-r--r-- | include/linux/serial_8250.h | 4 |
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 { | |||
59 | PLAT8250_DEV_SM501, | 59 | PLAT8250_DEV_SM501, |
60 | }; | 60 | }; |
61 | 61 | ||
62 | struct uart_8250_dma; | ||
63 | |||
62 | /* | 64 | /* |
63 | * This should be used by drivers which want to register | 65 | * This should be used by drivers which want to register |
64 | * their own 8250 ports without registering their own | 66 | * their own 8250 ports without registering their own |
@@ -91,6 +93,8 @@ struct uart_8250_port { | |||
91 | #define MSR_SAVE_FLAGS UART_MSR_ANY_DELTA | 93 | #define MSR_SAVE_FLAGS UART_MSR_ANY_DELTA |
92 | unsigned char msr_saved_flags; | 94 | unsigned char msr_saved_flags; |
93 | 95 | ||
96 | struct uart_8250_dma *dma; | ||
97 | |||
94 | /* 8250 specific callbacks */ | 98 | /* 8250 specific callbacks */ |
95 | int (*dl_read)(struct uart_8250_port *); | 99 | int (*dl_read)(struct uart_8250_port *); |
96 | void (*dl_write)(struct uart_8250_port *, int); | 100 | void (*dl_write)(struct uart_8250_port *, int); |