15149b685SErick ChenSpreadtrum SC2731 Voltage regulators
25149b685SErick Chen
35149b685SErick ChenThe SC2731 integrates low-voltage and low quiescent current DCDC/LDO.
45149b685SErick Chen14 LDO and 3 DCDCs are designed for external use. All DCDCs/LDOs have
55149b685SErick Chentheir own bypass (power-down) control signals. External tantalum or MLCC
65149b685SErick Chenceramic capacitors are recommended to use with these LDOs.
75149b685SErick Chen
85149b685SErick ChenRequired properties:
95149b685SErick Chen - compatible: should be "sprd,sc27xx-regulator".
105149b685SErick Chen
115149b685SErick ChenList of regulators provided by this controller. It is named according to
125149b685SErick Chenits regulator type, BUCK_<name> and LDO_<name>. The definition for each
135149b685SErick Chenof these nodes is defined using the standard binding for regulators at
145149b685SErick ChenDocumentation/devicetree/bindings/regulator/regulator.txt.
155149b685SErick Chen
165149b685SErick ChenThe valid names for regulators are:
175149b685SErick ChenBUCK:
185149b685SErick Chen	BUCK_CPU0, BUCK_CPU1, BUCK_RF
195149b685SErick ChenLDO:
205149b685SErick Chen	LDO_CAMA0, LDO_CAMA1, LDO_CAMMOT, LDO_VLDO, LDO_EMMCCORE, LDO_SDCORE,
215149b685SErick Chen	LDO_SDIO, LDO_WIFIPA, LDO_USB33, LDO_CAMD0, LDO_CAMD1, LDO_CON,
225149b685SErick Chen	LDO_CAMIO, LDO_SRAM
235149b685SErick Chen
245149b685SErick ChenExample:
255149b685SErick Chen	regulators {
265149b685SErick Chen		compatible = "sprd,sc27xx-regulator";
275149b685SErick Chen
285149b685SErick Chen		vddarm0: BUCK_CPU0 {
295149b685SErick Chen			regulator-name = "vddarm0";
305149b685SErick Chen			regulator-min-microvolt = <400000>;
315149b685SErick Chen			regulator-max-microvolt = <1996875>;
325149b685SErick Chen			regulator-ramp-delay = <25000>;
335149b685SErick Chen			regulator-always-on;
345149b685SErick Chen		};
355149b685SErick Chen
365149b685SErick Chen		vddcama0: LDO_CAMA0 {
375149b685SErick Chen			regulator-name = "vddcama0";
385149b685SErick Chen			regulator-min-microvolt = <1200000>;
395149b685SErick Chen			regulator-max-microvolt = <3750000>;
405149b685SErick Chen			regulator-enable-ramp-delay = <100>;
415149b685SErick Chen		};
425149b685SErick Chen		...
435149b685SErick Chen	};
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