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path: root/drivers/tty/serial/clps711x.c
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Diffstat (limited to 'drivers/tty/serial/clps711x.c')
-rw-r--r--drivers/tty/serial/clps711x.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/tty/serial/clps711x.c b/drivers/tty/serial/clps711x.c
index 7927725b89..30425a3d19 100644
--- a/drivers/tty/serial/clps711x.c
+++ b/drivers/tty/serial/clps711x.c
@@ -146,7 +146,8 @@ static irqreturn_t uart_clps711x_int_tx(int irq, void *dev_id)
{
struct uart_port *port = dev_id;
struct clps711x_port *s = dev_get_drvdata(port->dev);
- struct circ_buf *xmit = &port->state->xmit;
+ struct tty_port *tport = &port->state->port;
+ unsigned char c;
if (port->x_char) {
writew(port->x_char, port->membase + UARTDR_OFFSET);
@@ -155,7 +156,7 @@ static irqreturn_t uart_clps711x_int_tx(int irq, void *dev_id)
return IRQ_HANDLED;
}
- if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
+ if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port)) {
if (s->tx_enabled) {
disable_irq_nosync(port->irq);
s->tx_enabled = 0;
@@ -163,18 +164,17 @@ static irqreturn_t uart_clps711x_int_tx(int irq, void *dev_id)
return IRQ_HANDLED;
}
- while (!uart_circ_empty(xmit)) {
+ while (uart_fifo_get(port, &c)) {
u32 sysflg = 0;
- writew(xmit->buf[xmit->tail], port->membase + UARTDR_OFFSET);
- uart_xmit_advance(port, 1);
+ writew(c, port->membase + UARTDR_OFFSET);
regmap_read(s->syscon, SYSFLG_OFFSET, &sysflg);
if (sysflg & SYSFLG_UTXFF)
break;
}
- if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
+ if (kfifo_len(&tport->xmit_fifo) < WAKEUP_CHARS)
uart_write_wakeup(port);
return IRQ_HANDLED;