diff options
Diffstat (limited to 'drivers/tty/serial/fsl_linflexuart.c')
| -rw-r--r-- | drivers/tty/serial/fsl_linflexuart.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/tty/serial/fsl_linflexuart.c b/drivers/tty/serial/fsl_linflexuart.c index 5426322b5f..e972df4b18 100644 --- a/drivers/tty/serial/fsl_linflexuart.c +++ b/drivers/tty/serial/fsl_linflexuart.c @@ -174,17 +174,18 @@ static void linflex_put_char(struct uart_port *sport, unsigned char c) static inline void linflex_transmit_buffer(struct uart_port *sport) { - struct circ_buf *xmit = &sport->state->xmit; + struct tty_port *tport = &sport->state->port; + unsigned char c; - while (!uart_circ_empty(xmit)) { - linflex_put_char(sport, xmit->buf[xmit->tail]); - uart_xmit_advance(sport, 1); + while (uart_fifo_get(sport, &c)) { + linflex_put_char(sport, c); + sport->icount.tx++; } - if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) + if (kfifo_len(&tport->xmit_fifo) < WAKEUP_CHARS) uart_write_wakeup(sport); - if (uart_circ_empty(xmit)) + if (kfifo_is_empty(&tport->xmit_fifo)) linflex_stop_tx(sport); } @@ -200,7 +201,7 @@ static void linflex_start_tx(struct uart_port *port) static irqreturn_t linflex_txint(int irq, void *dev_id) { struct uart_port *sport = dev_id; - struct circ_buf *xmit = &sport->state->xmit; + struct tty_port *tport = &sport->state->port; unsigned long flags; uart_port_lock_irqsave(sport, &flags); @@ -210,7 +211,7 @@ static irqreturn_t linflex_txint(int irq, void *dev_id) goto out; } - if (uart_circ_empty(xmit) || uart_tx_stopped(sport)) { + if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(sport)) { linflex_stop_tx(sport); goto out; } |