diff options
Diffstat (limited to 'drivers/tty/serdev')
| -rw-r--r-- | drivers/tty/serdev/core.c | 11 | ||||
| -rw-r--r-- | drivers/tty/serdev/serdev-ttyport.c | 12 |
2 files changed, 23 insertions, 0 deletions
diff --git a/drivers/tty/serdev/core.c b/drivers/tty/serdev/core.c index 078fe64625cb..e7d663901c07 100644 --- a/drivers/tty/serdev/core.c +++ b/drivers/tty/serdev/core.c @@ -405,6 +405,17 @@ int serdev_device_set_tiocm(struct serdev_device *serdev, int set, int clear) } EXPORT_SYMBOL_GPL(serdev_device_set_tiocm); +int serdev_device_break_ctl(struct serdev_device *serdev, int break_state) +{ + struct serdev_controller *ctrl = serdev->ctrl; + + if (!ctrl || !ctrl->ops->break_ctl) + return -EOPNOTSUPP; + + return ctrl->ops->break_ctl(ctrl, break_state); +} +EXPORT_SYMBOL_GPL(serdev_device_break_ctl); + static int serdev_drv_probe(struct device *dev) { const struct serdev_device_driver *sdrv = to_serdev_device_driver(dev->driver); diff --git a/drivers/tty/serdev/serdev-ttyport.c b/drivers/tty/serdev/serdev-ttyport.c index f26ff82723f1..8033ef19669c 100644 --- a/drivers/tty/serdev/serdev-ttyport.c +++ b/drivers/tty/serdev/serdev-ttyport.c @@ -247,6 +247,17 @@ static int ttyport_set_tiocm(struct serdev_controller *ctrl, unsigned int set, u return tty->ops->tiocmset(tty, set, clear); } +static int ttyport_break_ctl(struct serdev_controller *ctrl, unsigned int break_state) +{ + struct serport *serport = serdev_controller_get_drvdata(ctrl); + struct tty_struct *tty = serport->tty; + + if (!tty->ops->break_ctl) + return -EOPNOTSUPP; + + return tty->ops->break_ctl(tty, break_state); +} + static const struct serdev_controller_ops ctrl_ops = { .write_buf = ttyport_write_buf, .write_flush = ttyport_write_flush, @@ -259,6 +270,7 @@ static const struct serdev_controller_ops ctrl_ops = { .wait_until_sent = ttyport_wait_until_sent, .get_tiocm = ttyport_get_tiocm, .set_tiocm = ttyport_set_tiocm, + .break_ctl = ttyport_break_ctl, }; struct device *serdev_tty_port_register(struct tty_port *port, |