custom-overlay-key.dtsi

&soc {
	gpio_keys {
		stem1 {
			label = "stem1";
			gpios = <&msm_gpio 90 0x1>;
			linux,input-type = <1>;
			linux,code = <750>;
			debounce-interval = <15>;
			linux,can-disable;
			gpio-key,wakeup;
		};
	/delete-node/ camera_focus;
	/delete-node/ vol_up;
	};
};