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Fixes: 380c966c093e ("tty: serial: fsl_lpuart: add 32-bit register interface support") Signed-off-by: Sherry Sun --- Changes in V2: 1. Split one patch into four smaller patches to improve the commit messages and add Fixes tag as suggested by Ilpo. --- drivers/tty/serial/fsl_lpuart.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index c297be11422a..75162c4784dd 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -1769,6 +1769,10 @@ static void lpuart32_shutdown(struct uart_port *port) spin_lock_irqsave(&port->lock, flags); + /* clear statue */ + temp = lpuart32_read(&sport->port, UARTSTAT); + lpuart32_write(&sport->port, temp, UARTSTAT); + /* disable Rx/Tx DMA */ temp = lpuart32_read(port, UARTBAUD); temp &= ~(UARTBAUD_TDMAE | UARTBAUD_RDMAE); -- 2.17.1