diff options
| author |   David Daney <ddaney@caviumnetworks.com> | 2009-01-02 13:49:54 +0000 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-02 10:19:43 -0800 |
| commit | 8e23fcc89c8091790903927449f8efb9b4e23960 (patch) | |
| tree | a6f60b457be02430a55629729451ba12288554c0 /include/linux/serial_8250.h | |
| parent | 8250: Serial driver changes to support future Cavium OCTEON serial patches. (diff) | |
| download | wireguard-linux-8e23fcc89c8091790903927449f8efb9b4e23960.tar.xz wireguard-linux-8e23fcc89c8091790903927449f8efb9b4e23960.zip | |
Serial: Allow port type to be specified when calling serial8250_register_port.
Add flag value UPF_FIXED_TYPE which specifies that the UART type is
known and should not be probed. For this case the UARTs properties
are just copied out of the uart_config entry.
This allows us to keep SOC specific 8250 probe code out of 8250.c. In
this case we know the serial hardware will not be changing as it is on
the same silicon as the CPU, and we can specify it with certainty in
the board/cpu setup code.
The alternative is to load up 8250.c with a bunch of OCTEON specific
special cases in the probing code.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/serial_8250.h')
| -rw-r--r-- | include/linux/serial_8250.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h index 77d83d929f2c..d4d2a78ad43e 100644 --- a/include/linux/serial_8250.h +++ b/include/linux/serial_8250.h @@ -28,6 +28,7 @@ struct plat_serial8250_port { unsigned char iotype; /* UPIO_* */ unsigned char hub6; upf_t flags; /* UPF_* flags */ + unsigned int type; /* If UPF_FIXED_TYPE */ unsigned int (*serial_in)(struct uart_port *, int); void (*serial_out)(struct uart_port *, int, int); }; |