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path: root/drivers/tty/serial/sunplus-uart.c
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Diffstat (limited to 'drivers/tty/serial/sunplus-uart.c')
-rw-r--r--drivers/tty/serial/sunplus-uart.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/tty/serial/sunplus-uart.c b/drivers/tty/serial/sunplus-uart.c
index f5e29eb4a4..abf7c44930 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);
}