diff options
| -rw-r--r-- | drivers/tty/serial/mxs-auart.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c index 21b3b3569461..b7a5aaa6271a 100644 --- a/drivers/tty/serial/mxs-auart.c +++ b/drivers/tty/serial/mxs-auart.c @@ -913,10 +913,11 @@ static void mxs_auart_shutdown(struct uart_port *u) static unsigned int mxs_auart_tx_empty(struct uart_port *u) { - if (readl(u->membase + AUART_STAT) & AUART_STAT_TXFE) + if ((readl(u->membase + AUART_STAT) & + (AUART_STAT_TXFE | AUART_STAT_BUSY)) == AUART_STAT_TXFE) return TIOCSER_TEMT; - else - return 0; + + return 0; } static void mxs_auart_start_tx(struct uart_port *u) |