&iomuxc { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_hog_1>; imx6ul-evk { pinctrl_hog_1: hoggrp-1 { fsl,pins = < MX6UL_PAD_SNVS_TAMPER7__GPIO5_IO07 0x1b0b0 /* Watchdog WDI */ >; }; }; }; watchdog: watchdog { compatible = "linux,wdt-gpio"; gpios = <&gpio5 7 GPIO_ACTIVE_LOW>; hw_algo = "toggle"; hw_margin_ms = <200>; };