Enables PPS support in mxs-auart serial driver to make PPS API working.
Signed-off-by: Janusz Uzycki <[email protected]>
---
drivers/tty/serial/mxs-auart.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c
index 8276bbe..e298a52 100644
--- a/drivers/tty/serial/mxs-auart.c
+++ b/drivers/tty/serial/mxs-auart.c
@@ -804,6 +804,15 @@ static void mxs_auart_settermios(struct uart_port *u,
mxs_auart_disable_ms(u);
}
+static void mxs_auart_set_ldisc(struct uart_port *port, int new)
+{
+ if (new == N_PPS) {
+ port->flags |= UPF_HARDPPS_CD;
+ mxs_auart_enable_ms(port);
+ } else
+ port->flags &= ~UPF_HARDPPS_CD;
+}
+
static irqreturn_t mxs_auart_irq_handle(int irq, void *context)
{
u32 istat;
@@ -970,6 +979,7 @@ static struct uart_ops mxs_auart_ops = {
.startup = mxs_auart_startup,
.shutdown = mxs_auart_shutdown,
.set_termios = mxs_auart_settermios,
+ .set_ldisc = mxs_auart_set_ldisc,
.type = mxs_auart_type,
.release_port = mxs_auart_release_port,
.request_port = mxs_auart_request_port,
--
1.7.11.3
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