• Anson Huang's avatar
    arm64: dts: imx8mn: Correct WDOG_B pin configuration · fa88e6e4
    Anson Huang authored
    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; 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: default avatarAnson Huang <Anson.Huang@nxp.com>
    Reviewed-by: default avatarKrzysztof Kozlowski <krzk@kernel.org>
    Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
    fa88e6e4
imx8mn-var-som.dtsi 13.5 KB