[U-Boot] [PATCH] dm: serial: Move a carriage return before a line feed

[Bin Meng]

Hi Alison,

On Wed, Feb 24, 2016 at 11:56 AM, Alison Wang <b18965 at freescale.com> wrote:
> In general, a carriage return needs to execute before a line feed.
> The patch is to change serial DM driver based on this rule.
>
> Signed-off-by: Alison Wang <alison.wang at nxp.com>
> ---
>  drivers/serial/serial-uclass.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/serial/serial-uclass.c b/drivers/serial/serial-uclass.c
> index 1c447ff..f154eb1 100644
> --- a/drivers/serial/serial-uclass.c
> +++ b/drivers/serial/serial-uclass.c
> @@ -123,11 +123,12 @@ static void _serial_putc(struct udevice *dev, char ch)
>         struct dm_serial_ops *ops = serial_get_ops(dev);
>         int err;
>
> +       if (ch == '\n')
> +               _serial_putc(dev, '\r');
> +
>         do {
>                 err = ops->putc(dev, ch);
>         } while (err == -EAGAIN);
> -       if (ch == '\n')
> -               _serial_putc(dev, '\r');
>  }
>

We should also clean up all DM serial driver to remove this handling
in their driver. eg: serial_lpuart.c/serial_mxc.c

Regards,
Bin