5149b685b1
This patch adds support for the Spreadtrum SC2731 voltage regulator device. Signed-off-by: Erick Chen <erick.chen@spreadtrum.com> Signed-off-by: Mark Brown <broonie@kernel.org>
44 lines
1.3 KiB
Plaintext
44 lines
1.3 KiB
Plaintext
Spreadtrum SC2731 Voltage regulators
|
|
|
|
The SC2731 integrates low-voltage and low quiescent current DCDC/LDO.
|
|
14 LDO and 3 DCDCs are designed for external use. All DCDCs/LDOs have
|
|
their own bypass (power-down) control signals. External tantalum or MLCC
|
|
ceramic capacitors are recommended to use with these LDOs.
|
|
|
|
Required properties:
|
|
- compatible: should be "sprd,sc27xx-regulator".
|
|
|
|
List of regulators provided by this controller. It is named according to
|
|
its regulator type, BUCK_<name> and LDO_<name>. The definition for each
|
|
of these nodes is defined using the standard binding for regulators at
|
|
Documentation/devicetree/bindings/regulator/regulator.txt.
|
|
|
|
The valid names for regulators are:
|
|
BUCK:
|
|
BUCK_CPU0, BUCK_CPU1, BUCK_RF
|
|
LDO:
|
|
LDO_CAMA0, LDO_CAMA1, LDO_CAMMOT, LDO_VLDO, LDO_EMMCCORE, LDO_SDCORE,
|
|
LDO_SDIO, LDO_WIFIPA, LDO_USB33, LDO_CAMD0, LDO_CAMD1, LDO_CON,
|
|
LDO_CAMIO, LDO_SRAM
|
|
|
|
Example:
|
|
regulators {
|
|
compatible = "sprd,sc27xx-regulator";
|
|
|
|
vddarm0: BUCK_CPU0 {
|
|
regulator-name = "vddarm0";
|
|
regulator-min-microvolt = <400000>;
|
|
regulator-max-microvolt = <1996875>;
|
|
regulator-ramp-delay = <25000>;
|
|
regulator-always-on;
|
|
};
|
|
|
|
vddcama0: LDO_CAMA0 {
|
|
regulator-name = "vddcama0";
|
|
regulator-min-microvolt = <1200000>;
|
|
regulator-max-microvolt = <3750000>;
|
|
regulator-enable-ramp-delay = <100>;
|
|
};
|
|
...
|
|
};
|