arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi

#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
&pm8994_gpios {

	pinctrl-names = "default";
	pinctrl-0 = <&ls_exp_gpio_f>;

	ls_exp_gpio_f: pm8916_mpp4 {
		pinconf {
			pins = "gpio5";
			output-low;
			power-source = <2>; // PM8994_GPIO_S4, 1.8V
		};
	};
};