[PATCH 5/6] serial 8250: enable PPS support.
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From: Rodolfo Giometti on 25 Feb 2010 07:50 Automagically function serial8250_enable_ms() is called when PPS ldisc is selected. Signed-off-by: Rodolfo Giometti <giometti(a)linux.it> --- 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 c3e37c8..48aa0b4 100644 --- a/drivers/serial/8250.c +++ b/drivers/serial/8250.c @@ -2413,6 +2413,21 @@ 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) { @@ -2626,6 +2641,7 @@ 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, -- 1.6.3.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |