Documentation/devicetree/bindings/power/qcom,coincell-charger.txt

   1 Qualcomm Coincell Charger:
   2
   3 The hardware block controls charging for a coincell or capacitor that is
   4 used to provide power backup for certain features of the power management
   5 IC (PMIC)
   6
   7 - compatible:
   8         Usage: required
   9         Value type: <string>
  10         Definition: must be: "qcom,pm8941-coincell"
  11
  12 - reg:
  13         Usage: required
  14         Value type: <u32>
  15         Definition: base address of the coincell charger registers
  16
  17 - qcom,rset-ohms:
  18         Usage: required
  19         Value type: <u32>
  20         Definition: resistance (in ohms) for current-limiting resistor
  21                 must be one of: 800, 1200, 1700, 2100
  22
  23 - qcom,vset-millivolts:
  24         Usage: required
  25         Value type: <u32>
  26         Definition: voltage (in millivolts) to apply for charging
  27                 must be one of: 2500, 3000, 3100, 3200
  28
  29 - qcom,charger-disable:
  30         Usage: optional
  31         Value type: <boolean>
  32         Definition: definining this property disables charging
  33
  34 This charger is a sub-node of one of the 8941 PMIC blocks, and is specified
  35 as a child node in DTS of that node.  See ../mfd/qcom,spmi-pmic.txt and
  36 ../mfd/qcom-pm8xxx.txt
  37
  38 Example:
  39
  40         pm8941@0 {
  41                 coincell@2800 {
  42                         compatible = "qcom,pm8941-coincell";
  43                         reg = <0x2800>;
  44
  45                         qcom,rset-ohms = <2100>;
  46                         qcom,vset-millivolts = <3000>;
  47                 };
  48         };