1Spreadtrum SC2731 Voltage regulators 2 3The SC2731 integrates low-voltage and low quiescent current DCDC/LDO. 414 LDO and 3 DCDCs are designed for external use. All DCDCs/LDOs have 5their own bypass (power-down) control signals. External tantalum or MLCC 6ceramic capacitors are recommended to use with these LDOs. 7 8Required properties: 9 - compatible: should be "sprd,sc27xx-regulator". 10 11List of regulators provided by this controller. It is named according to 12its regulator type, BUCK_<name> and LDO_<name>. The definition for each 13of these nodes is defined using the standard binding for regulators at 14Documentation/devicetree/bindings/regulator/regulator.txt. 15 16The valid names for regulators are: 17BUCK: 18 BUCK_CPU0, BUCK_CPU1, BUCK_RF 19LDO: 20 LDO_CAMA0, LDO_CAMA1, LDO_CAMMOT, LDO_VLDO, LDO_EMMCCORE, LDO_SDCORE, 21 LDO_SDIO, LDO_WIFIPA, LDO_USB33, LDO_CAMD0, LDO_CAMD1, LDO_CON, 22 LDO_CAMIO, LDO_SRAM 23 24Example: 25 regulators { 26 compatible = "sprd,sc27xx-regulator"; 27 28 vddarm0: BUCK_CPU0 { 29 regulator-name = "vddarm0"; 30 regulator-min-microvolt = <400000>; 31 regulator-max-microvolt = <1996875>; 32 regulator-ramp-delay = <25000>; 33 regulator-always-on; 34 }; 35 36 vddcama0: LDO_CAMA0 { 37 regulator-name = "vddcama0"; 38 regulator-min-microvolt = <1200000>; 39 regulator-max-microvolt = <3750000>; 40 regulator-enable-ramp-delay = <100>; 41 }; 42 ... 43 }; 44