1Qualcomm PM8xxx PMIC multi-function devices 2 3The PM8xxx family of Power Management ICs are used to provide regulated 4voltages and other various functionality to Qualcomm SoCs. 5 6= PROPERTIES 7 8- compatible: 9 Usage: required 10 Value type: <string> 11 Definition: must be one of: 12 "qcom,pm8058" 13 "qcom,pm8821" 14 "qcom,pm8921" 15 16- #address-cells: 17 Usage: required 18 Value type: <u32> 19 Definition: must be 1 20 21- #size-cells: 22 Usage: required 23 Value type: <u32> 24 Definition: must be 0 25 26- interrupts: 27 Usage: required 28 Value type: <prop-encoded-array> 29 Definition: specifies the interrupt that indicates a subdevice 30 has generated an interrupt (summary interrupt). The 31 format of the specifier is defined by the binding document 32 describing the node's interrupt parent. 33 34- #interrupt-cells: 35 Usage: required 36 Value type : <u32> 37 Definition: must be 2. Specifies the number of cells needed to encode 38 an interrupt source. The 1st cell contains the interrupt 39 number. The 2nd cell is the trigger type and level flags 40 encoded as follows: 41 42 1 = low-to-high edge triggered 43 2 = high-to-low edge triggered 44 4 = active high level-sensitive 45 8 = active low level-sensitive 46 47- interrupt-controller: 48 Usage: required 49 Value type: <empty> 50 Definition: identifies this node as an interrupt controller 51 52= SUBCOMPONENTS 53 54The PMIC contains multiple independent functions, each described in a subnode. 55The below bindings specify the set of valid subnodes. 56 57== Real-Time Clock 58 59- compatible: 60 Usage: required 61 Value type: <string> 62 Definition: must be one of: 63 "qcom,pm8058-rtc" 64 "qcom,pm8921-rtc" 65 "qcom,pm8941-rtc" 66 "qcom,pm8018-rtc" 67 68- reg: 69 Usage: required 70 Value type: <prop-encoded-array> 71 Definition: single entry specifying the base address of the RTC registers 72 73- interrupts: 74 Usage: required 75 Value type: <prop-encoded-array> 76 Definition: single entry specifying the RTC's alarm interrupt 77 78- allow-set-time: 79 Usage: optional 80 Value type: <empty> 81 Definition: indicates that the setting of RTC time is allowed by 82 the host CPU 83 84= EXAMPLE 85 86 pmicintc: pmic@0 { 87 compatible = "qcom,pm8921"; 88 interrupts = <104 8>; 89 #interrupt-cells = <2>; 90 interrupt-controller; 91 #address-cells = <1>; 92 #size-cells = <0>; 93 94 rtc@11d { 95 compatible = "qcom,pm8921-rtc"; 96 reg = <0x11d>; 97 interrupts = <0x27 0>; 98 }; 99 }; 100