diff options
| author | San Mehat <san@google.com> | 2009-07-29 20:21:28 -0700 |
|---|---|---|
| committer | Colin Cross <ccross@android.com> | 2012-04-09 13:57:48 -0700 |
| commit | 5188eeeaa673e45a22e9433bb596fef1a16e56d6 (patch) | |
| tree | 7b00f178bea2327ccf7c41284179a32f295a2e14 /drivers/tty | |
| parent | e7ba60ce77d7375805a7ff61010f8f83b169eec7 (diff) | |
serial_core: Add wake_peer uart operation
Add wake_peer which is called before starting UART TX. The idea here
is to provide a mechanism where we can wakeup our peer before sending
data.
Change-Id: I42e0779b635f64ca99184b45d5b028de80197491
Signed-off-by: San Mehat <san@google.com>
Diffstat (limited to 'drivers/tty')
| -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 9c4c05b2825..7d9fbb82012 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -94,6 +94,9 @@ 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); |