linux-arkmicro/linux/Documentation/devicetree/bindings/mfd/hi6421.txt

* HI6421 Multi-Functional Device (MFD), by HiSilicon Ltd.

Required parent device properties:
- compatible    : One of the following chip-specific strings:
	"hisilicon,hi6421-pmic";
	"hisilicon,hi6421v530-pmic";
- reg		: register range space of hi6421;

Supported Hi6421 sub-devices include:

Device                     IRQ Names              Supply Names   Description
------                     ---------              ------------   -----------
regulators               :  None                 : None         : Regulators

Required child device properties:
None.

Example:
	hi6421 {
		compatible = "hisilicon,hi6421-pmic";
		reg = <0xfcc00000 0x0180>; /* 0x60 << 2 */

		regulators {
			// supply for MLC NAND/ eMMC
			hi6421_vout0_reg: hi6421_vout0 {
				regulator-name = "VOUT0";
				regulator-min-microvolt = <2850000>;
				regulator-max-microvolt = <2850000>;
			};

			// supply for 26M Oscillator
			hi6421_vout1_reg: hi6421_vout1 {
				regulator-name = "VOUT1";
				regulator-min-microvolt = <1700000>;
				regulator-max-microvolt = <2000000>;
				regulator-boot-on;
				regulator-always-on;
			};
		};
	};