1 Spreadtrum SC2731 Voltage regulators
2
3 The SC2731 integrates low-voltage and low quiescent current DCDC/LDO.
4 14 LDO and 3 DCDCs are designed for external use. All DCDCs/LDOs have
5 their own bypass (power-down) control signals. External tantalum or MLCC
6 ceramic capacitors are recommended to use with these LDOs.
7
8 Required properties:
9 - compatible: should be "sprd,sc27xx-regulator".
10
11 List of regulators provided by this controller. It is named according to
12 its regulator type, BUCK_<name> and LDO_<name>. The definition for each
13 of these nodes is defined using the standard binding for regulators at
14 Documentation/devicetree/bindings/regulator/regulator.txt.
15
16 The valid names for regulators are:
17 BUCK:
18 BUCK_CPU0, BUCK_CPU1, BUCK_RF
19 LDO:
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
24 Example:
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 };
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