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* NXP PCA9450 Power Management Integrated Circuit (PMIC) bindings

Required properties:
 - compatible		: Should be "nxp,pca9450".
 - reg			: I2C slave address.
 - pinctrl-0      	: Pinctrl setting for pmic such as interrupt pin.
 - gpio_intr		: gpio pin used for interrupt pin.
 - regulators:          : List of child nodes that specify the regulator
                            initialization data. Including 6 buck regulators
			    and 5 ldo regulators.

Example:
	pmic: pca9450@25 {
		reg = <0x25>;
		compatible = "nxp,pca9450";
		/* PMIC PCA9450 PMIC_nINT GPIO1_IO3 */
		pinctrl-0 = <&pinctrl_pmic>;
		gpio_intr = <&gpio1 3 GPIO_ACTIVE_LOW>;

		regulators {
			#address-cells = <1>;
			#size-cells = <0>;

			pca9450,pmic-buck2-uses-i2c-dvs;
			/* Run/Standby voltage */
			pca9450,pmic-buck2-dvs-voltage = <950000>, <850000>;

			buck1_reg: regulator@0 {
				reg = <0>;
				regulator-compatible = "buck1";
				regulator-min-microvolt = <600000>;
				regulator-max-microvolt = <2187500>;
				regulator-boot-on;
				regulator-always-on;
				regulator-ramp-delay = <3125>;
			};

			buck2_reg: regulator@1 {
				reg = <1>;
				regulator-compatible = "buck2";
				regulator-min-microvolt = <600000>;
				regulator-max-microvolt = <2187500>;
				regulator-boot-on;
				regulator-always-on;
				regulator-ramp-delay = <3125>;
			};

			.....

		};
	};