From 36a262782b045220bfccf89bd2c4d78cbe152c8e Mon Sep 17 00:00:00 2001 From: Janusz Uzycki Date: Fri, 10 Oct 2014 18:53:27 +0200 Subject: [PATCH] serial: mxs-auart: enable PPS support Enables PPS support in mxs-auart serial driver to make PPS API working. Signed-off-by: Janusz Uzycki Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/mxs-auart.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c index 088f1e17b33e..386b52894056 100644 --- a/drivers/tty/serial/mxs-auart.c +++ b/drivers/tty/serial/mxs-auart.c @@ -784,6 +784,16 @@ 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; @@ -949,6 +959,7 @@ 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, -- 2.20.1