imx: serial: notify higher layers in case xmit IRQ was not called

[pandora-kernel.git] / drivers / serial / imx.c

diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c
index 6b8f12f..49f2e12 100644 (file)
--- a/drivers/serial/imx.c
+++ b/drivers/serial/imx.c
@@ -308,6 +308,9 @@ static inline void imx_transmit_buffer(struct imx_port *sport)
                        break;
        }
 
+       if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
+               uart_write_wakeup(&sport->port);
+
        if (uart_circ_empty(xmit))
                imx_stop_tx(&sport->port);
 }