CPU wake-up from hardware interrupt. DTS configuration imx6ul

Wakeup code from hardware Interrupt


/* GPIO_Wakeup Pin configuration vikneshwar */
        gpio-keys {
compatible = "gpio-keys";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_gpio_keys>;
power {
label = "Wakeup Button";
                         gpios = <&gpio3 14 GPIO_ACTIVE_HIGH>;
linux,code = <KEY_WAKEUP>; /*  143  under input-event-codes.h*/ 
        gpio-key,wakeup;
                  };
};