linux-kernel - RE: [PATCH] tty: serial: fsl_lpuart: fix the wrong mapbase value

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Date:   Thu, 19 Aug 2021 02:03:15 +0000
From:   Sherry Sun <sherry.sun@....com>
To:     Fabio Estevam <festevam@...il.com>
CC:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        "linux-serial@...r.kernel.org" <linux-serial@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        dl-linux-imx <linux-imx@....com>
Subject: RE: [PATCH] tty: serial: fsl_lpuart: fix the wrong mapbase value

Hi Fabio,

> -----Original Message-----
> From: Fabio Estevam <festevam@...il.com>
> Sent: 2021年8月19日 9:55
> To: Sherry Sun <sherry.sun@....com>
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>; Jiri Slaby
> <jirislaby@...nel.org>; linux-serial@...r.kernel.org; linux-kernel <linux-
> kernel@...r.kernel.org>; dl-linux-imx <linux-imx@....com>
> Subject: Re: [PATCH] tty: serial: fsl_lpuart: fix the wrong mapbase value
> 
> Hi Sherry,
> 
> On Tue, Aug 17, 2021 at 3:32 AM Sherry Sun <sherry.sun@....com> wrote:
> >
> > From: Andy Duan <fugang.duan@....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@....com>
> > Acked-by: Fugang Duan <fugang.duan@....com>
> > Signed-off-by: Adriana Reus <adriana.reus@....com>
> > Signed-off-by: Sherry Sun <sherry.sun@....com>
> 
> You probably should add a Fixes tag.

That's reasonable, I will add it. Thanks!

Best regards
Sherry