u-boot/doc/device-tree-bindings/pmic/sandbox.txt

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Sandbox pmic
This device uses two drivers:
- drivers/power/pmic/sandbox.c (for parent device)
- drivers/power/regulator/sandbox.c (for child regulators)
This file describes the binding info for the PMIC driver.
To bind the regulators, please read the regulator binding info:
- doc/device-tree-bindings/regulator/sandbox.txt
Required PMIC node properties:
- compatible: "sandbox,pmic"
- reg = 0x40
Required PMIC's "emul" subnode, with property:
- compatible: "sandbox,i2c-pmic"
With the above properties, the pmic device can be used for read/write only.
To bind each regulator, the optional regulator subnodes should exists.
Optional subnodes:
- ldo/buck subnodes of each device's regulator (see regulator binding info)
Example:
sandbox_pmic {
compatible = "sandbox,pmic";
reg = <0x40>;
/* Mandatory for I/O */
emul {
compatible = "sandbox,i2c-pmic";
};
};