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Sandbox, PMIC regulators
This device uses two drivers:
- drivers/power/pmic/sandbox.c (as parent I/O device)
- drivers/power/regulator/sandbox.c (for child regulators)
This file describes the binding info for the REGULATOR driver.
First, please read the binding info for the PMIC:
- doc/device-tree-bindings/pmic/sandbox.txt
Required subnodes:
- ldoN { };
- buckN { };
The sandbox PMIC can support: ldo1, ldo2, buck1, buck2.
For each PMIC's regulator subnode, there is one required property:
- regulator-name: used for regulator uclass platform data '.name'
Optional:
- regulator-min-microvolt: minimum allowed Voltage to set
- regulator-max-microvolt: minimum allowed Voltage to set
- regulator-min-microamps: minimum allowed Current limit to set (LDO1/BUCK1)
- regulator-max-microamps: minimum allowed Current limit to set (LDO1/BUCK1)
- regulator-always-on: regulator should be never disabled
- regulator-boot-on: regulator should be enabled by the bootloader
Example PMIC's regulator subnodes:
ldo1 {
regulator-name = "VDD_1.0V";
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1200000>;
regulator-min-microamps = <100000>;
regulator-max-microamps = <400000>;
regulator-always-on;
};
buck2 {
regulator-name = "VDD_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-boot-on;
};
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