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29 lines
1.1 KiB
Diff
29 lines
1.1 KiB
Diff
From 392865cdcca83fbc9624725e505feb31dda7e67a Mon Sep 17 00:00:00 2001
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From: Andy Duan <fugang.duan@nxp.com>
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Date: Mon, 28 Jan 2019 14:29:14 +0800
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Subject: [PATCH] MLK-18137: fsl_lpuart: Fix loopback mode
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Register offset needs to be applied on mapbase also.
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dma_tx/rx_request use the physical address of UARTDATA.
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Register offset is currently only applied to membase (the
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corresponding virtual addr) but not on mapbase.
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Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
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Acked-by: Fugang Duan <fugang.duan@nxp.com>
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Signed-off-by: Adriana Reus <adriana.reus@nxp.com>
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---
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drivers/tty/serial/fsl_lpuart.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/drivers/tty/serial/fsl_lpuart.c
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+++ b/drivers/tty/serial/fsl_lpuart.c
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@@ -2454,7 +2454,7 @@ static int lpuart_probe(struct platform_
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return PTR_ERR(sport->port.membase);
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sport->port.membase += sdata->reg_off;
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- sport->port.mapbase = res->start;
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+ sport->port.mapbase = res->start + sdata->reg_off;
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sport->port.dev = &pdev->dev;
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sport->port.type = PORT_LPUART;
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sport->devtype = sdata->devtype;
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