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path: root/drivers/tty/serial/st-asc.c
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Diffstat (limited to 'drivers/tty/serial/st-asc.c')
-rw-r--r--drivers/tty/serial/st-asc.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/tty/serial/st-asc.c b/drivers/tty/serial/st-asc.c
index dd3a96e..c7f61ac 100644
--- a/drivers/tty/serial/st-asc.c
+++ b/drivers/tty/serial/st-asc.c
@@ -194,9 +194,9 @@ static inline u32 asc_txfifo_is_empty(struct uart_port *port)
return asc_in(port, ASC_STA) & ASC_STA_TE;
}
-static inline int asc_txfifo_is_full(struct uart_port *port)
+static inline u32 asc_txfifo_is_half_empty(struct uart_port *port)
{
- return asc_in(port, ASC_STA) & ASC_STA_TF;
+ return asc_in(port, ASC_STA) & ASC_STA_THE;
}
static inline const char *asc_port_name(struct uart_port *port)
@@ -628,7 +628,7 @@ static int asc_get_poll_char(struct uart_port *port)
static void asc_put_poll_char(struct uart_port *port, unsigned char c)
{
- while (asc_txfifo_is_full(port))
+ while (!asc_txfifo_is_half_empty(port))
cpu_relax();
asc_out(port, ASC_TXBUF, c);
}
@@ -783,7 +783,7 @@ static void asc_console_putchar(struct uart_port *port, int ch)
unsigned int timeout = 1000000;
/* Wait for upto 1 second in case flow control is stopping us. */
- while (--timeout && asc_txfifo_is_full(port))
+ while (--timeout && !asc_txfifo_is_half_empty(port))
udelay(1);
asc_out(port, ASC_TXBUF, ch);
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