diff options
| author | San Mehat <san@google.com> | 2011-10-09 02:19:41 +0100 |
|---|---|---|
| committer | Andy Green <andy.green@linaro.org> | 2011-10-09 02:19:41 +0100 |
| commit | a41c02f804470aaa3bf7f5f6034bf8208d4f0171 (patch) | |
| tree | 6c2d900b624c021206ee327c126712edc9c6251e /drivers/tty/serial | |
| parent | 30182d42179f1be6187788acddff91cf1743bfc5 (diff) | |
serial_core: Add wake_peer uart operation which is called before starting UART TX. The idea here is to provide a mechanism where we can wakeup our peer before sending data.
Signed-off-by: San Mehat <san@google.com>
Diffstat (limited to 'drivers/tty/serial')
| -rw-r--r-- | drivers/tty/serial/serial_core.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index a3efbea5dbb..41555ff0977 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -91,6 +91,9 @@ static void __uart_start(struct tty_struct *tty) struct uart_state *state = tty->driver_data; struct uart_port *port = state->uart_port; + if (port->ops->wake_peer) + port->ops->wake_peer(port); + if (!uart_circ_empty(&state->xmit) && state->xmit.buf && !tty->stopped && !tty->hw_stopped) port->ops->start_tx(port); |