diff options
| -rw-r--r-- | drivers/staging/greybus/uart.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/staging/greybus/uart.c b/drivers/staging/greybus/uart.c index 6260569b2f25..01aeed1b3a9c 100644 --- a/drivers/staging/greybus/uart.c +++ b/drivers/staging/greybus/uart.c @@ -771,6 +771,16 @@ static void gb_tty_dtr_rts(struct tty_port *port, int on) send_control(gb_tty, newctrl); } +static int gb_tty_port_activate(struct tty_port *port, + struct tty_struct *tty) +{ + struct gb_tty *gb_tty; + + gb_tty = container_of(port, struct gb_tty, port); + + return gbphy_runtime_get_sync(gb_tty->gbphy_dev); +} + static void gb_tty_port_shutdown(struct tty_port *port) { struct gb_tty *gb_tty; @@ -800,6 +810,8 @@ static void gb_tty_port_shutdown(struct tty_port *port) out: gb_tty->close_pending = false; + + gbphy_runtime_put_autosuspend(gb_tty->gbphy_dev); } static const struct tty_operations gb_ops = { @@ -822,6 +834,7 @@ static const struct tty_operations gb_ops = { static struct tty_port_operations gb_port_ops = { .dtr_rts = gb_tty_dtr_rts, + .activate = gb_tty_port_activate, .shutdown = gb_tty_port_shutdown, }; @@ -922,6 +935,7 @@ static int gb_uart_probe(struct gbphy_device *gbphy_dev, goto exit_connection_disable; } + gbphy_runtime_put_autosuspend(gbphy_dev); return 0; exit_connection_disable: @@ -945,6 +959,11 @@ static void gb_uart_remove(struct gbphy_device *gbphy_dev) struct gb_tty *gb_tty = gb_gbphy_get_data(gbphy_dev); struct gb_connection *connection = gb_tty->connection; struct tty_struct *tty; + int ret; + + ret = gbphy_runtime_get_sync(gbphy_dev); + if (ret) + gbphy_runtime_get_noresume(gbphy_dev); mutex_lock(&gb_tty->mutex); gb_tty->disconnected = true; |