diff mbox series

[V3] tty: serial: fsl_lpuart: fix the wrong mapbase value

Message ID 20210819021033.32606-1-sherry.sun@nxp.com
State New
Headers show
Series [V3] tty: serial: fsl_lpuart: fix the wrong mapbase value | expand

Commit Message

Sherry Sun Aug. 19, 2021, 2:10 a.m. UTC 
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.

Fixes: 24b1e5f0e83c ("tty: serial: lpuart: add imx7ulp support")
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Adriana Reus <adriana.reus@nxp.com>
Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
Signed-off-by: Andy Duan <fugang.duan@nxp.com>
---
changes in V3:
  Add the Fixes tag suggested by Fabio.
changes in V2:
  Add author signed-off-by tag suggested by Greg.
---
 drivers/tty/serial/fsl_lpuart.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index 31d715c4787a..117e011aff5f 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -2615,7 +2615,7 @@  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;