diff options
Diffstat (limited to 'drivers/tty/serial/sunplus-uart.c')
| -rw-r--r-- | drivers/tty/serial/sunplus-uart.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/tty/serial/sunplus-uart.c b/drivers/tty/serial/sunplus-uart.c index f5e29eb4a4ce..abf7c449308d 100644 --- a/drivers/tty/serial/sunplus-uart.c +++ b/drivers/tty/serial/sunplus-uart.c @@ -200,7 +200,7 @@ static void sunplus_break_ctl(struct uart_port *port, int ctl) static void transmit_chars(struct uart_port *port) { - struct circ_buf *xmit = &port->state->xmit; + struct tty_port *tport = &port->state->port; if (port->x_char) { sp_uart_put_char(port, port->x_char); @@ -209,22 +209,24 @@ static void transmit_chars(struct uart_port *port) return; } - if (uart_circ_empty(xmit) || uart_tx_stopped(port)) { + if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port)) { sunplus_stop_tx(port); return; } do { - sp_uart_put_char(port, xmit->buf[xmit->tail]); - uart_xmit_advance(port, 1); - if (uart_circ_empty(xmit)) + unsigned char ch; + + if (!uart_fifo_get(port, &ch)) break; + + sp_uart_put_char(port, ch); } while (sunplus_tx_buf_not_full(port)); - if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) + if (kfifo_len(&tport->xmit_fifo) < WAKEUP_CHARS) uart_write_wakeup(port); - if (uart_circ_empty(xmit)) + if (kfifo_is_empty(&tport->xmit_fifo)) sunplus_stop_tx(port); } |