Re: [PATCH 04/14] serial: tegra: protect IER against LCR.DLAB

[Thierry Reding]

On Mon, Aug 12, 2019 at 04:58:13PM +0530, Krishna Yarlagadda wrote:
> From: Ahung Cheng <ahcheng@xxxxxxxxxx>
> 
> The IER and DLH registers occupy the same address space, selected by
> the LCR.DLAB bit. Hence, add port lock to protect IER when LCR.DLAB bit
> is set.
> 
> Signed-off-by: Ahung Cheng <ahcheng@xxxxxxxxxx>
> Signed-off-by: Krishna Yarlagadda <kyarlagadda@xxxxxxxxxx>
> ---
>  drivers/tty/serial/serial-tegra.c | 3 +++
>  1 file changed, 3 insertions(+)

Acked-by: Thierry Reding <treding@xxxxxxxxxx>

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