linux-kernel - Re: [PATCH 2/3] arm64: dts: imx8mn: Correct WDOG

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Date:   Mon, 12 Oct 2020 08:53:40 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Anson Huang <Anson.Huang@....com>
Cc:     robh+dt@...nel.org, shawnguo@...nel.org, s.hauer@...gutronix.de,
        kernel@...gutronix.de, festevam@...il.com, aford173@...il.com,
        daniel.baluta@....com, shengjiu.wang@....com, peter.chen@....com,
        alifer.wsdm@...il.com, abel.vesa@....com, yibin.gong@....com,
        jun.li@....com, l.stach@...gutronix.de, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Linux-imx@....com
Subject: Re: [PATCH 2/3] arm64: dts: imx8mn: Correct WDOG_B pin configuration

On Fri, 9 Oct 2020 at 09:52, Anson Huang <Anson.Huang@....com> wrote:
>
> Different revision of i.MX8MN EVK boards may have different external
> pull up registor design, some are enabled while some are NOT, to make
> sure the WDOG_B pin works properly, better to enable internal pull up
> resistor. Since enabling internal pull up resistor is NOT harmful and
> having benefit of flexibility on different board design, just enable
> it for all i.MX8MN boards.
>
> Signed-off-by: Anson Huang <Anson.Huang@....com>
> ---
>  arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi     | 2 +-
>  arch/arm64/boot/dts/freescale/imx8mn-var-som.dtsi | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)

The same as patch #1 - you do more than just enable pull up.

Best regards,
Krzysztof