STMicroelectronics STPMIC1 Voltage regulators Regulator Nodes are optional depending on needs. Available Regulators in STPMIC1 device are: - buck1 for Buck BUCK1 - buck2 for Buck BUCK2 - buck3 for Buck BUCK3 - buck4 for Buck BUCK4 - ldo1 for LDO LDO1 - ldo2 for LDO LDO2 - ldo3 for LDO LDO3 - ldo4 for LDO LDO4 - ldo5 for LDO LDO5 - ldo6 for LDO LDO6 - vref_ddr for LDO Vref DDR - boost for Buck BOOST - pwr_sw1 for VBUS_OTG switch - pwr_sw2 for SW_OUT switch Switches are fixed voltage regulators with only enable/disable capability. Optional properties: - st,mask-reset: mask reset for this regulator: the regulator configuration is maintained during pmic reset. - regulator-over-current-protection: if set, all regulators are switched off in case of over-current detection on this regulator, if not set, the driver only sends an over-current event. - interrupts: index of current limit detection interrupt - -supply: phandle to the parent supply/regulator node each regulator supply can be described except vref_ddr. - regulator-active-discharge: can be used on pwr_sw1 and pwr_sw2. Example: regulators { compatible = "st,stpmic1-regulators"; ldo6-supply = <&v3v3>; vdd_core: buck1 { regulator-name = "vdd_core"; interrupts = ; st,mask-reset; regulator-pull-down; regulator-min-microvolt = <700000>; regulator-max-microvolt = <1200000>; }; v3v3: buck4 { regulator-name = "v3v3"; interrupts = ; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; }; v1v8: ldo6 { regulator-name = "v1v8"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; regulator-over-current-protection; }; };