diff options
| author | Huang Shijie <shijie8@gmail.com> | 2012-08-23 02:13:36 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-09-05 20:28:35 (GMT) |
| commit | f21ec3d2d46e5f2ffc06f31fe2704fdcea7a58f3 (patch) | |
| tree | 5d814cd687776374f960d3af2490187c3fbdf750 /drivers/tty/serial | |
| parent | e5b57c037a656c694c7f3674f96352297a6ee7d8 (diff) | |
| download | linux-fsl-qoriq-f21ec3d2d46e5f2ffc06f31fe2704fdcea7a58f3.tar.xz | |
serial: add a new helper function
In most of the time, the driver needs to check if the cts flow control
is enabled. But now, the driver checks the ASYNC_CTS_FLOW flag manually,
which is not a grace way. So add a new wraper function to make the code
tidy and clean.
Signed-off-by: Huang Shijie <shijie8@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial')
| -rw-r--r-- | drivers/tty/serial/mxs-auart.c | 2 | ||||
| -rw-r--r-- | drivers/tty/serial/serial_core.c | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c index 3a667ee..dafeef2 100644 --- a/drivers/tty/serial/mxs-auart.c +++ b/drivers/tty/serial/mxs-auart.c @@ -262,7 +262,7 @@ static void mxs_auart_set_mctrl(struct uart_port *u, unsigned mctrl) ctrl &= ~AUART_CTRL2_RTSEN; if (mctrl & TIOCM_RTS) { - if (u->state->port.flags & ASYNC_CTS_FLOW) + if (tty_port_cts_enabled(&u->state->port)) ctrl |= AUART_CTRL2_RTSEN; } diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index bb5f236..137b25c 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -176,7 +176,7 @@ static int uart_port_startup(struct tty_struct *tty, struct uart_state *state, uart_set_mctrl(uport, TIOCM_RTS | TIOCM_DTR); } - if (port->flags & ASYNC_CTS_FLOW) { + if (tty_port_cts_enabled(port)) { spin_lock_irq(&uport->lock); if (!(uport->ops->get_mctrl(uport) & TIOCM_CTS)) tty->hw_stopped = 1; @@ -2509,7 +2509,7 @@ void uart_handle_cts_change(struct uart_port *uport, unsigned int status) uport->icount.cts++; - if (port->flags & ASYNC_CTS_FLOW) { + if (tty_port_cts_enabled(port)) { if (tty->hw_stopped) { if (status) { tty->hw_stopped = 0; |