[PATCH 29/76] atmel_serial: enable PPS support
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: 2011-03-16 21:13:51
Subsystem:
microchip at91 serial driver, the rest, tty layer and serial drivers · Maintainers:
Richard Genoud, Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
From: Viktar Palstsiuk <redacted> Enables PPS support in atmel serial driver to make PPS API working. Signed-off-by: Viktar Palstsiuk <redacted> Signed-off-by: Nicolas Ferre <redacted> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <redacted> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> --- drivers/tty/serial/atmel_serial.c | 16 ++++++++++++++++ 1 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index 2a1d52f..f119d17 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c@@ -1240,6 +1240,21 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios *termios, spin_unlock_irqrestore(&port->lock, flags); } +static void atmel_set_ldisc(struct uart_port *port, int new) +{ + 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; + atmel_enable_ms(port); + } else { + port->flags &= ~UPF_HARDPPS_CD; + } +} + /* * Return string describing the specified port */
@@ -1380,6 +1395,7 @@ static struct uart_ops atmel_pops = { .shutdown = atmel_shutdown, .flush_buffer = atmel_flush_buffer, .set_termios = atmel_set_termios, + .set_ldisc = atmel_set_ldisc, .type = atmel_type, .release_port = atmel_release_port, .request_port = atmel_request_port,
--
1.7.4.1