1Qualcomm Coincell Charger: 2 3The hardware block controls charging for a coincell or capacitor that is 4used to provide power backup for certain features of the power management 5IC (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: defining this property disables charging 33 34This charger is a sub-node of one of the 8941 PMIC blocks, and is specified 35as a child node in DTS of that node. See ../mfd/qcom,spmi-pmic.txt and 36../mfd/qcom-pm8xxx.txt 37 38Example: 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 }; 49