diff options
| author | Rodolfo Giometti <giometti@linux.it> | 2010-03-10 15:23:48 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-12 15:52:43 -0800 |
| commit | dc77f161aa5e81ddaf38390094c4f2ca3814e6b1 (patch) | |
| tree | 47ec9aff1a07915a5e96f469fea4815881a28e8f /drivers/serial/8250.c | |
| parent | a0880df0ccde8d551fc4d88c455acb2ee0801e26 (diff) | |
serial 8250: enable PPS support
Automagically function serial8250_enable_ms() is called when PPS ldisc
is selected.
Signed-off-by: Rodolfo Giometti <giometti@linux.it>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Greg KH <greg@kroah.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Alexander Gordeev <lasaine@lvk.cs.msu.su>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/serial/8250.c')
| -rw-r--r-- | drivers/serial/8250.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c index 7c4ebe6ee18..c3db16b7afa 100644 --- a/drivers/serial/8250.c +++ b/drivers/serial/8250.c @@ -2408,6 +2408,21 @@ serial8250_set_termios(struct uart_port *port, struct ktermios *termios, } static void +serial8250_set_ldisc(struct uart_port *port) +{ + int line = port->line; + + if (line >= port->state->port.tty->driver->num) + return; + + if (port->state->port.tty->ldisc->ops->num == N_PPS) { + port->flags |= UPF_HARDPPS_CD; + serial8250_enable_ms(port); + } else + port->flags &= ~UPF_HARDPPS_CD; +} + +static void serial8250_pm(struct uart_port *port, unsigned int state, unsigned int oldstate) { @@ -2628,6 +2643,7 @@ static struct uart_ops serial8250_pops = { .startup = serial8250_startup, .shutdown = serial8250_shutdown, .set_termios = serial8250_set_termios, + .set_ldisc = serial8250_set_ldisc, .pm = serial8250_pm, .type = serial8250_type, .release_port = serial8250_release_port, |