From: Andy Duan Date: Thu, 19 Aug 2021 02:10:33 +0000 (+0800) Subject: tty: serial: fsl_lpuart: fix the wrong mapbase value X-Git-Tag: v5.15~424^2~9 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d5c38948448abc2bb6b36dbf85a554bf4748885e;p=platform%2Fkernel%2Flinux-starfive.git tty: serial: fsl_lpuart: fix the wrong mapbase value 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 Signed-off-by: Adriana Reus Signed-off-by: Sherry Sun Signed-off-by: Andy Duan Link: https://lore.kernel.org/r/20210819021033.32606-1-sherry.sun@nxp.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index 31d715c..117e011 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;