Commit fa15cec9 authored by Anson Huang's avatar Anson Huang Committed by Shawn Guo

arm64: dts: imx8mp-evk: Correct WDOG_B pin configuration

Different revision of i.MX8MP 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.MX8MP 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>
parent fa88e6e4
...@@ -262,7 +262,7 @@ MX8MP_IOMUXC_NAND_CE1_B__USDHC3_STROBE 0x196 ...@@ -262,7 +262,7 @@ MX8MP_IOMUXC_NAND_CE1_B__USDHC3_STROBE 0x196
pinctrl_wdog: wdoggrp { pinctrl_wdog: wdoggrp {
fsl,pins = < fsl,pins = <
MX8MP_IOMUXC_GPIO1_IO02__WDOG1_WDOG_B 0xc6 MX8MP_IOMUXC_GPIO1_IO02__WDOG1_WDOG_B 0x166
>; >;
}; };
}; };
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