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Date:   Fri, 30 Oct 2020 18:34:49 +0800
From:   Shawn Guo <shawnguo@kernel.org>
To:     Anson Huang <Anson.Huang@nxp.com>
Cc:     robh+dt@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de,
        festevam@gmail.com, krzk@kernel.org, aford173@gmail.com,
        daniel.baluta@nxp.com, shengjiu.wang@nxp.com, peter.chen@nxp.com,
        alifer.wsdm@gmail.com, abel.vesa@nxp.com, yibin.gong@nxp.com,
        jun.li@nxp.com, l.stach@pengutronix.de, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Linux-imx@nxp.com
Subject: Re: [PATCH V2 1/3] arm64: dts: imx8mm: Correct WDOG_B pin
 configuration
Message-ID: <20201030103449.GR28755@dragon>
References: <1602506642-5262-1-git-send-email-Anson.Huang@nxp.com>
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On Mon, Oct 12, 2020 at 08:44:00PM +0800, Anson Huang wrote:
> Different revision of i.MX8MM 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.MX8MM boards; And schmitt input is NOT necessary for this
> WDOG_B output pin, so remove it; Open drain outputs provide more
> flexibility to a designer as they can be pulled-up to any voltage found
> in the system, so enable it as well.
> 
> Signed-off-by: Anson Huang <Anson.Huang@nxp.com>

Applied all, thanks.