From: Viktar Palstsiuk <viktar.palstsiuk@xxxxxxxxxxx>
Enables PPS support in atmel serial driver to make PPS API working.
Signed-off-by: Viktar Palstsiuk <viktar.palstsiuk@xxxxxxxxxxx>
Signed-off-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxx>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
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
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