Initialise the read status in probe. It will be checked in the isr so to have the default values lets initialise in probe. Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xxxxxxxxxx> --- v2: Split the patch. drivers/tty/serial/xilinx_uartps.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c index 8d2c21718869..94e1bc694457 100644 --- a/drivers/tty/serial/xilinx_uartps.c +++ b/drivers/tty/serial/xilinx_uartps.c @@ -1559,6 +1559,8 @@ static int cdns_uart_probe(struct platform_device *pdev) port->dev = &pdev->dev; port->uartclk = clk_get_rate(cdns_uart_data->uartclk); port->private_data = cdns_uart_data; + port->read_status_mask = CDNS_UART_IXR_TXEMPTY | CDNS_UART_IXR_RXTRIG | + CDNS_UART_IXR_OVERRUN | CDNS_UART_IXR_TOUT; cdns_uart_data->port = port; platform_set_drvdata(pdev, port); -- 2.25.1