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Qualcomm Coincell Charger:
The hardware block controls charging for a coincell or capacitor that is
used to provide power backup for certain features of the power management
IC (PMIC)
- compatible:
Usage: required
Value type: <string>
Definition: must be: "qcom,pm8941-coincell"
- reg:
Usage: required
Value type: <u32>
Definition: base address of the coincell charger registers
- qcom,rset-ohms:
Usage: required
Value type: <u32>
Definition: resistance (in ohms) for current-limiting resistor
must be one of: 800, 1200, 1700, 2100
- qcom,vset-millivolts:
Usage: required
Value type: <u32>
Definition: voltage (in millivolts) to apply for charging
must be one of: 2500, 3000, 3100, 3200
- qcom,charger-disable:
Usage: optional
Value type: <boolean>
Definition: defining this property disables charging
This charger is a sub-node of one of the 8941 PMIC blocks, and is specified
as a child node in DTS of that node. See ../mfd/qcom,spmi-pmic.txt and
../mfd/qcom-pm8xxx.txt
Example:
pm8941@0 {
coincell@2800 {
compatible = "qcom,pm8941-coincell";
reg = <0x2800>;
qcom,rset-ohms = <2100>;
qcom,vset-millivolts = <3000>;
};
};
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