* Powerventure Semiconductor PV88080 Voltage Regulator

Required properties:
- compatible: "sprd,sc2703-regulator".
- reg: I2C slave address, 0x49.
- interrupts: the interrupt outputs of the controller
- regulators: A node that houses a sub-node for each regulator within the
  device. Each sub-node is identified using the node's name, with valid
  values listed below. The content of each sub-node is defined by the
  standard binding for regulators; see regulator.txt.
  BUCK1.

Optional properties:
- enable-gpio: Enable external gpio control for the Core BUCK.
	this property should be enable if the OTP value(GPIO control bit) is 1:
	(If SYSCTRL_SEQ_MODE_CONTROL1[bit 0],
	COREBUCK_POWER_CTRL_SELECT bit is 1)
	Please see the datasheet further details.
- sprd,buck-ch1-b-out: Initialize Core BUCK output voltage for SoC special requirement.
- Any optional property defined in regulator.txt

Example

	pmic: sc2703-buck@49 {
		compatible = "sprd,sc2703-buck";
		reg = <0x49>;
		interrupt-parent = <&gpio6>;
		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;

		sprd,buck-ch1-b-out = <1000000>;
		enable-gpio = <&gpio4 10 GPIO_ACTIVE_HIGH>;

		regulator-name = "sc2703-buck";
		regulator-min-microvolt = < 300000>;
		regulator-max-microvolt = <1570000>;
		regulator-min-microamp 	= <5600000>;
		regulator-max-microamp 	= <10800000>;
		regulator-boot-on;
		regulator-always-on;
	};
