Kernel-4.18.0-80.el8_qcom,coincell-charger

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:
  Definition: must be: “qcom,pm8941-coincell”

• reg:
  Usage: required
  Value type:
  Definition: base address of the coincell charger registers

• qcom,rset-ohms:
  Usage: required
  Value type:
  Definition: resistance (in ohms) for current-limiting resistor

    must be one of: 800, 1200, 1700, 2100
  

• qcom,vset-millivolts:
  Usage: required
  Value type:
  Definition: voltage (in millivolts) to apply for charging

    must be one of: 2500, 3000, 3100, 3200
  

• qcom,charger-disable:
  Usage: optional
  Value type:
  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>;
    };
};