Mediatek MT6323 Regulator Driver

All voltage regulators are defined as subnodes of the regulators node. A list
of regulators provided by this controller are defined as subnodes of the
PMIC's node. Each regulator is named according to its regulator type,
buck_<name> and ldo_<name>. The definition for each of these nodes is defined
using the standard binding for regulators at
Documentation/devicetree/bindings/regulator/regulator.txt.

The valid names for regulators are::
BUCK:
  buck_vproc, buck_vsys, buck_vpa
LDO:
  ldo_vtcxo, ldo_vcn28, ldo_vcn33_bt, ldo_vcn33_wifi, ldo_va, ldo_vcama,
  ldo_vio28, ldo_vusb, ldo_vmc, ldo_vmch, ldo_vemc3v3, ldo_vgp1, ldo_vgp2,
  ldo_vgp3, ldo_vcn18, ldo_vsim1, ldo_vsim2, ldo_vrtc, ldo_vcamaf, ldo_vibr,
  ldo_vrf18, ldo_vm, ldo_vio18, ldo_vcamd, ldo_vcamio

Example:

	pmic: mt6323 {
		mt6323regulator: regulators {
			mt6323_vproc_reg: buck_vproc{
				regulator-name = "vproc";
				regulator-min-microvolt = < 700000>;
				regulator-max-microvolt = <1350000>;
				regulator-ramp-delay = <12500>;
				regulator-always-on;
				regulator-boot-on;
			};

			mt6323_vsys_reg: buck_vsys{
				regulator-name = "vsys";
				regulator-min-microvolt = <1400000>;
				regulator-max-microvolt = <2987500>;
				regulator-ramp-delay = <25000>;
				regulator-always-on;
				regulator-boot-on;
			};

			mt6323_vpa_reg: buck_vpa{
				regulator-name = "vpa";
				regulator-min-microvolt = < 500000>;
				regulator-max-microvolt = <3650000>;
			};

			mt6323_vtcxo_reg: ldo_vtcxo{
				regulator-name = "vtcxo";
				regulator-min-microvolt = <2800000>;
				regulator-max-microvolt = <2800000>;
				regulator-enable-ramp-delay = <90>;
				regulator-always-on;
				regulator-boot-on;
			};

			mt6323_vcn28_reg: ldo_vcn28{
				regulator-name = "vcn28";
				regulator-min-microvolt = <2800000>;
				regulator-max-microvolt = <2800000>;
				regulator-enable-ramp-delay = <185>;
			};

			mt6323_vcn33_bt_reg: ldo_vcn33_bt{
				regulator-name = "vcn33_bt";
				regulator-min-microvolt = <3300000>;
				regulator-max-microvolt = <3600000>;
				regulator-enable-ramp-delay = <185>;
			};

			mt6323_vcn33_wifi_reg: ldo_vcn33_wifi{
				regulator-name = "vcn33_wifi";
				regulator-min-microvolt = <3300000>;
				regulator-max-microvolt = <3600000>;
				regulator-enable-ramp-delay = <185>;
			};

			mt6323_va_reg: ldo_va{
				regulator-name = "va";
				regulator-min-microvolt = <2800000>;
				regulator-max-microvolt = <2800000>;
				regulator-enable-ramp-delay = <216>;
				regulator-always-on;
				regulator-boot-on;
			};

			mt6323_vcama_reg: ldo_vcama{
				regulator-name = "vcama";
				regulator-min-microvolt = <1500000>;
				regulator-max-microvolt = <2800000>;
				regulator-enable-ramp-delay = <216>;
			};

			mt6323_vio28_reg: ldo_vio28{
				regulator-name = "vio28";
				regulator-min-microvolt = <2800000>;
				regulator-max-microvolt = <2800000>;
				regulator-enable-ramp-delay = <216>;
				regulator-always-on;
				regulator-boot-on;
			};

			mt6323_vusb_reg: ldo_vusb{
				regulator-name = "vusb";
				regulator-min-microvolt = <3300000>;
				regulator-max-microvolt = <3300000>;
				regulator-enable-ramp-delay = <216>;
				regulator-boot-on;
			};

			mt6323_vmc_reg: ldo_vmc{
				regulator-name = "vmc";
				regulator-min-microvolt = <1800000>;
				regulator-max-microvolt = <3300000>;
				regulator-enable-ramp-delay = <36>;
				regulator-boot-on;
			};

			mt6323_vmch_reg: ldo_vmch{
				regulator-name = "vmch";
				regulator-min-microvolt = <3000000>;
				regulator-max-microvolt = <3300000>;
				regulator-enable-ramp-delay = <36>;
				regulator-boot-on;
			};

			mt6323_vemc3v3_reg: ldo_vemc3v3{
				regulator-name = "vemc3v3";
				regulator-min-microvolt = <3000000>;
				regulator-max-microvolt = <3300000>;
				regulator-enable-ramp-delay = <36>;
				regulator-boot-on;
			};

			mt6323_vgp1_reg: ldo_vgp1{
				regulator-name = "vgp1";
				regulator-min-microvolt = <1200000>;
				regulator-max-microvolt = <3300000>;
				regulator-enable-ramp-delay = <216>;
			};

			mt6323_vgp2_reg: ldo_vgp2{
				regulator-name = "vgp2";
				regulator-min-microvolt = <1200000>;
				regulator-max-microvolt = <3000000>;
				regulator-enable-ramp-delay = <216>;
			};

			mt6323_vgp3_reg: ldo_vgp3{
				regulator-name = "vgp3";
				regulator-min-microvolt = <1200000>;
				regulator-max-microvolt = <1800000>;
				regulator-enable-ramp-delay = <216>;
			};

			mt6323_vcn18_reg: ldo_vcn18{
				regulator-name = "vcn18";
				regulator-min-microvolt = <1800000>;
				regulator-max-microvolt = <1800000>;
				regulator-enable-ramp-delay = <216>;
			};

			mt6323_vsim1_reg: ldo_vsim1{
				regulator-name = "vsim1";
				regulator-min-microvolt = <1800000>;
				regulator-max-microvolt = <3000000>;
				regulator-enable-ramp-delay = <216>;
			};

			mt6323_vsim2_reg: ldo_vsim2{
				regulator-name = "vsim2";
				regulator-min-microvolt = <1800000>;
				regulator-max-microvolt = <3000000>;
				regulator-enable-ramp-delay = <216>;
			};

			mt6323_vrtc_reg: ldo_vrtc{
				regulator-name = "vrtc";
				regulator-min-microvolt = <2800000>;
				regulator-max-microvolt = <2800000>;
				regulator-always-on;
				regulator-boot-on;
			};

			mt6323_vcamaf_reg: ldo_vcamaf{
				regulator-name = "vcamaf";
				regulator-min-microvolt = <1200000>;
				regulator-max-microvolt = <3300000>;
				regulator-enable-ramp-delay = <216>;
			};

			mt6323_vibr_reg: ldo_vibr{
				regulator-name = "vibr";
				regulator-min-microvolt = <1200000>;
				regulator-max-microvolt = <3300000>;
				regulator-enable-ramp-delay = <36>;
			};

			mt6323_vrf18_reg: ldo_vrf18{
				regulator-name = "vrf18";
				regulator-min-microvolt = <1825000>;
				regulator-max-microvolt = <1825000>;
				regulator-enable-ramp-delay = <187>;
			};

			mt6323_vm_reg: ldo_vm{
				regulator-name = "vm";
				regulator-min-microvolt = <1200000>;
				regulator-max-microvolt = <1800000>;
				regulator-enable-ramp-delay = <216>;
				regulator-always-on;
				regulator-boot-on;
			};

			mt6323_vio18_reg: ldo_vio18{
				regulator-name = "vio18";
				regulator-min-microvolt = <1800000>;
				regulator-max-microvolt = <1800000>;
				regulator-enable-ramp-delay = <216>;
				regulator-always-on;
				regulator-boot-on;
			};

			mt6323_vcamd_reg: ldo_vcamd{
				regulator-name = "vcamd";
				regulator-min-microvolt = <1200000>;
				regulator-max-microvolt = <1800000>;
				regulator-enable-ramp-delay = <216>;
			};

			mt6323_vcamio_reg: ldo_vcamio{
				regulator-name = "vcamio";
				regulator-min-microvolt = <1800000>;
				regulator-max-microvolt = <1800000>;
				regulator-enable-ramp-delay = <216>;
			};
		};
	};