From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thierry Reding <thierry.reding@gmail.com>
Subject: Re: [PATCH 04/14] serial: tegra: protect IER against LCR.DLAB
Date: Tue, 13 Aug 2019 11:46:35 +0200
Message-ID: <20190813094635.GI1137@ulmo>
References: <1565609303-27000-1-git-send-email-kyarlagadda@nvidia.com>
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To: Krishna Yarlagadda <kyarlagadda@nvidia.com>
Cc: gregkh@linuxfoundation.org, robh+dt@kernel.org, mark.rutland@arm.com, jonathanh@nvidia.com, ldewangan@nvidia.com, jslaby@suse.com, linux-serial@vger.kernel.org, devicetree@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, Ahung Cheng <ahcheng@nvidia.com>
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On Mon, Aug 12, 2019 at 04:58:13PM +0530, Krishna Yarlagadda wrote:
> From: Ahung Cheng <ahcheng@nvidia.com>
>=20
> 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.
>=20
> Signed-off-by: Ahung Cheng <ahcheng@nvidia.com>
> Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
> ---
>  drivers/tty/serial/serial-tegra.c | 3 +++
>  1 file changed, 3 insertions(+)

Acked-by: Thierry Reding <treding@nvidia.com>

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