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MLK-18137: fsl_lpuart: Fix loopback mode

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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>
This commit is contained in:
Adriana Reus
2018-05-29 14:15:54 +03:00
committed by Jason Liu
parent a6708eaa98
commit 1cc3dc708f
1 changed files with 1 additions and 1 deletions
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drivers/tty/serial/fsl_lpuart.c
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@ -2419,7 +2419,7 @@ 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;
ret = platform_get_irq(pdev, 0);