Messages in this thread Patch in this message | | | From | Sherry Sun <> | Subject | [PATCH] tty: serial: fsl_lpuart: fix the wrong mapbase value | Date | Tue, 17 Aug 2021 14:30:58 +0800 |
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From: Andy Duan <fugang.duan@nxp.com>
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@nxp.com> Acked-by: Fugang Duan <fugang.duan@nxp.com> Signed-off-by: Adriana Reus <adriana.reus@nxp.com> Signed-off-by: Sherry Sun <sherry.sun@nxp.com> --- 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
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