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| 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 | 7ed63d5eb4c0de0321f5c0a7328e132a78f9fafe (patch) | |
| tree | 20dd851a6ca48ee780432ffdaae012bd10745a66 /drivers/serial/amba-pl010.c | |
| parent | dc77f161aa5e81ddaf38390094c4f2ca3814e6b1 (diff) | |
| download | blackbird-op-linux-7ed63d5eb4c0de0321f5c0a7328e132a78f9fafe.tar.gz blackbird-op-linux-7ed63d5eb4c0de0321f5c0a7328e132a78f9fafe.zip | |
serial amba-pl010: enable PPS support
Function pl010_enable_ms() is automagically 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/amba-pl010.c')
| -rw-r--r-- | drivers/serial/amba-pl010.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/serial/amba-pl010.c b/drivers/serial/amba-pl010.c index 429a8ae86933..e4b3c2c88bb6 100644 --- a/drivers/serial/amba-pl010.c +++ b/drivers/serial/amba-pl010.c @@ -471,6 +471,20 @@ pl010_set_termios(struct uart_port *port, struct ktermios *termios, spin_unlock_irqrestore(&uap->port.lock, flags); } +static void pl010_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; + pl010_enable_ms(port); + } else + port->flags &= ~UPF_HARDPPS_CD; +} + static const char *pl010_type(struct uart_port *port) { return port->type == PORT_AMBA ? "AMBA" : NULL; @@ -531,6 +545,7 @@ static struct uart_ops amba_pl010_pops = { .startup = pl010_startup, .shutdown = pl010_shutdown, .set_termios = pl010_set_termios, + .set_ldisc = pl010_set_ldisc, .type = pl010_type, .release_port = pl010_release_port, .request_port = pl010_request_port, |
