diff options
| -rw-r--r-- | drivers/serial/atmel_serial.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c index 5f0414fc1b10..6aeef22bd203 100644 --- a/drivers/serial/atmel_serial.c +++ b/drivers/serial/atmel_serial.c @@ -1454,6 +1454,12 @@ static int atmel_serial_suspend(struct platform_device *pdev, struct uart_port *port = platform_get_drvdata(pdev); struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); + if (atmel_is_console_port(port) && console_suspend_enabled) { + /* Drain the TX shifter */ + while (!(UART_GET_CSR(port) & ATMEL_US_TXEMPTY)) + cpu_relax(); + } + if (device_may_wakeup(&pdev->dev) && !atmel_serial_clk_will_stop()) enable_irq_wake(port->irq); |