summaryrefslogtreecommitdiffstats
path: root/drivers/tty
diff options
context:
space:
mode:
authorEd Blake <ed.blake@imgtec.com>2016-11-10 18:07:55 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-11-16 10:59:38 +0100
commitdb405a8f8bf70daf57ed88808a2bf9c5fe308c70 (patch)
tree5cbc937fe6794752d0e2f4a4de119275c04cf41d /drivers/tty
parent98838d95075a5295f3478ceba18bcccf472e30f4 (diff)
downloadlinux-db405a8f8bf70daf57ed88808a2bf9c5fe308c70.tar.bz2
serial: 8250: Expose set_ldisc function
Expose set_ldisc() function so that it can be overridden with a platform specific implementation. Signed-off-by: Ed Blake <ed.blake@imgtec.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
-rw-r--r--drivers/tty/serial/8250/8250_core.c3
-rw-r--r--drivers/tty/serial/8250/8250_port.c12
2 files changed, 13 insertions, 2 deletions
diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index 13d04bf9547d..61569a765d9e 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -830,6 +830,7 @@ static int serial8250_probe(struct platform_device *dev)
uart.port.handle_irq = p->handle_irq;
uart.port.handle_break = p->handle_break;
uart.port.set_termios = p->set_termios;
+ uart.port.set_ldisc = p->set_ldisc;
uart.port.get_mctrl = p->get_mctrl;
uart.port.pm = p->pm;
uart.port.dev = &dev->dev;
@@ -1023,6 +1024,8 @@ int serial8250_register_8250_port(struct uart_8250_port *up)
/* Possibly override set_termios call */
if (up->port.set_termios)
uart->port.set_termios = up->port.set_termios;
+ if (up->port.set_ldisc)
+ uart->port.set_ldisc = up->port.set_ldisc;
if (up->port.get_mctrl)
uart->port.get_mctrl = up->port.get_mctrl;
if (up->port.set_mctrl)
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
index 4a326034c51b..fe4399b41df6 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -2693,8 +2693,7 @@ serial8250_set_termios(struct uart_port *port, struct ktermios *termios,
serial8250_do_set_termios(port, termios, old);
}
-static void
-serial8250_set_ldisc(struct uart_port *port, struct ktermios *termios)
+void serial8250_do_set_ldisc(struct uart_port *port, struct ktermios *termios)
{
if (termios->c_line == N_PPS) {
port->flags |= UPF_HARDPPS_CD;
@@ -2710,7 +2709,16 @@ serial8250_set_ldisc(struct uart_port *port, struct ktermios *termios)
}
}
}
+EXPORT_SYMBOL_GPL(serial8250_do_set_ldisc);
+static void
+serial8250_set_ldisc(struct uart_port *port, struct ktermios *termios)
+{
+ if (port->set_ldisc)
+ port->set_ldisc(port, termios);
+ else
+ serial8250_do_set_ldisc(port, termios);
+}
void serial8250_do_pm(struct uart_port *port, unsigned int state,
unsigned int oldstate)