diff options
Diffstat (limited to 'drivers/tty/serial/vt8500_serial.c')
| -rw-r--r-- | drivers/tty/serial/vt8500_serial.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/tty/serial/vt8500_serial.c b/drivers/tty/serial/vt8500_serial.c index 6f08136ce78a..10fbdb09965f 100644 --- a/drivers/tty/serial/vt8500_serial.c +++ b/drivers/tty/serial/vt8500_serial.c @@ -187,6 +187,13 @@ static void handle_rx(struct uart_port *port) tty_flip_buffer_push(tport); } +static unsigned int vt8500_tx_empty(struct uart_port *port) +{ + unsigned int idx = vt8500_read(port, VT8500_URFIDX) & 0x1f; + + return idx < 16 ? TIOCSER_TEMT : 0; +} + static void handle_tx(struct uart_port *port) { struct circ_buf *xmit = &port->state->xmit; @@ -201,7 +208,7 @@ static void handle_tx(struct uart_port *port) return; } - while ((vt8500_read(port, VT8500_URFIDX) & 0x1f) < 16) { + while (vt8500_tx_empty(port)) { if (uart_circ_empty(xmit)) break; @@ -260,12 +267,6 @@ static irqreturn_t vt8500_irq(int irq, void *dev_id) return IRQ_HANDLED; } -static unsigned int vt8500_tx_empty(struct uart_port *port) -{ - return (vt8500_read(port, VT8500_URFIDX) & 0x1f) < 16 ? - TIOCSER_TEMT : 0; -} - static unsigned int vt8500_get_mctrl(struct uart_port *port) { unsigned int usr; @@ -355,7 +356,7 @@ static void vt8500_shutdown(struct uart_port *port) static void vt8500_set_termios(struct uart_port *port, struct ktermios *termios, - struct ktermios *old) + const struct ktermios *old) { struct vt8500_port *vt8500_port = container_of(port, struct vt8500_port, uart); |