Spreadtrum SC2731 Voltage regulators
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The SC2731 integrates low-voltage and low quiescent current DCDC/LDO.
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14 LDO and 3 DCDCs are designed for external use. All DCDCs/LDOs have
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their own bypass (power-down) control signals. External tantalum or MLCC
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ceramic capacitors are recommended to use with these LDOs.
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Required properties:
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- compatible: should be "sprd,sc27xx-regulator".
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List of regulators provided by this controller. It is named according to
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its regulator type, BUCK_<name> and LDO_<name>. The definition for each
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of these nodes is defined using the standard binding for regulators at
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Documentation/devicetree/bindings/regulator/regulator.txt.
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The valid names for regulators are:
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BUCK:
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BUCK_CPU0, BUCK_CPU1, BUCK_RF
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LDO:
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LDO_CAMA0, LDO_CAMA1, LDO_CAMMOT, LDO_VLDO, LDO_EMMCCORE, LDO_SDCORE,
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LDO_SDIO, LDO_WIFIPA, LDO_USB33, LDO_CAMD0, LDO_CAMD1, LDO_CON,
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LDO_CAMIO, LDO_SRAM
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Example:
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regulators {
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compatible = "sprd,sc27xx-regulator";
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vddarm0: BUCK_CPU0 {
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regulator-name = "vddarm0";
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regulator-min-microvolt = <400000>;
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regulator-max-microvolt = <1996875>;
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regulator-ramp-delay = <25000>;
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regulator-always-on;
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};
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vddcama0: LDO_CAMA0 {
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regulator-name = "vddcama0";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <3750000>;
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regulator-enable-ramp-delay = <100>;
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};
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...
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};
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