From: Andy Duan <fugang.duan@xxxxxxx> Register offset needs to be applied on mapbase also. dma_tx/rx_request use the physical address of UARTDATA. Register offset is currently only applied to membase (the corresponding virtual addr) but not on mapbase. Reviewed-by: Leonard Crestez <leonard.crestez@xxxxxxx> Acked-by: Fugang Duan <fugang.duan@xxxxxxx> Signed-off-by: Adriana Reus <adriana.reus@xxxxxxx> Signed-off-by: Sherry Sun <sherry.sun@xxxxxxx> --- drivers/tty/serial/fsl_lpuart.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index f0e5da77ed6d..460e428b7592 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -2611,7 +2611,7 @@ static int lpuart_probe(struct platform_device *pdev) return PTR_ERR(sport->port.membase); sport->port.membase += sdata->reg_off; - sport->port.mapbase = res->start; + sport->port.mapbase = res->start + sdata->reg_off; sport->port.dev = &pdev->dev; sport->port.type = PORT_LPUART; sport->devtype = sdata->devtype; -- 2.17.1
