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arm64: dts: imx91-9x9-qsb: add pinctrl for wdog3 reset

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The wdog3 node enables fsl,ext-reset-output to assert an external
reset signal upon watchdog timeout, but lacks pinctrl configuration
for the physical pad.

Without proper pinctrl settings, which could cause the watchdog timeout
to fail to reset the board hardware.

Add pinctrl configuration to ensure the pin is properly muxed and
configured for external watchdog reset functionality.

Signed-off-by: Joy Zou <joy.zou@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
This commit is contained in:
Joy Zou 2026-05-19 19:15:16 +08:00 committed by Frank Li
parent dcb42d491e
commit 3086c0a73e
1 changed files with 8 additions and 0 deletions
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8
arch/arm64/boot/dts/freescale/imx91-9x9-qsb.dts
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@ -230,6 +230,12 @@ MX91_PAD_SD2_DATA3__USDHC2_DATA3 0x13fe
MX91_PAD_SD2_VSELECT__USDHC2_VSELECT 0x51e
>;
};
pinctrl_wdog: wdoggrp {
fsl,pins = <
MX91_PAD_WDOG_ANY__WDOG1_WDOG_ANY 0x31e
>;
};
};
&lpi2c1 {
@ -419,6 +425,8 @@ &usdhc2 {
};
&wdog3 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_wdog>;
fsl,ext-reset-output;
status = "okay";
};