diff options
| -rw-r--r-- | drivers/tty/serial/8250/8250_port.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c index 4c620bedfbf4..a5fe0e66c607 100644 --- a/drivers/tty/serial/8250/8250_port.c +++ b/drivers/tty/serial/8250/8250_port.c @@ -1764,6 +1764,10 @@ void serial8250_tx_chars(struct uart_8250_port *up) if ((up->capabilities & UART_CAP_HFIFO) && (serial_in(up, UART_LSR) & BOTH_EMPTY) != BOTH_EMPTY) break; + /* The BCM2835 MINI UART THRE bit is really a not-full bit. */ + if ((up->capabilities & UART_CAP_MINI) && + !(serial_in(up, UART_LSR) & UART_LSR_THRE)) + break; } while (--count > 0); if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) |