diff options
Diffstat (limited to 'drivers/tty/serial/fsl_lpuart.c')
| -rw-r--r-- | drivers/tty/serial/fsl_lpuart.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index 57b0632a3db6..c91b9d9818cd 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -245,7 +245,7 @@ #define DRIVER_NAME "fsl-lpuart" #define DEV_NAME "ttyLP" -#define UART_NR 8 +#define UART_NR 12 /* IMX lpuart has four extra unused regs located at the beginning */ #define IMX_REG_OFF 0x10 @@ -1965,6 +1965,11 @@ static void lpuart32_shutdown(struct uart_port *port) UARTCTRL_TIE | UARTCTRL_TCIE | UARTCTRL_RIE | UARTCTRL_SBK); lpuart32_write(port, temp, UARTCTRL); + /* flush Rx/Tx FIFO */ + temp = lpuart32_read(port, UARTFIFO); + temp |= UARTFIFO_TXFLUSH | UARTFIFO_RXFLUSH; + lpuart32_write(port, temp, UARTFIFO); + uart_port_unlock_irqrestore(port, flags); lpuart_dma_shutdown(sport); |