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Qualcomm PM8xxx PMIC multi-function devices The PM8xxx family of Power Management ICs are used to provide regulated voltages and other various functionality to Qualcomm SoCs. = PROPERTIES - compatible: Usage: required Value type: <string> Definition: must be one of: "qcom,pm8058" "qcom,pm8821" "qcom,pm8921" - #address-cells: Usage: required Value type: <u32> Definition: must be 1 - #size-cells: Usage: required Value type: <u32> Definition: must be 0 - interrupts: Usage: required Value type: <prop-encoded-array> Definition: specifies the interrupt that indicates a subdevice has generated an interrupt (summary interrupt). The format of the specifier is defined by the binding document describing the node's interrupt parent. - #interrupt-cells: Usage: required Value type : <u32> Definition: must be 2. Specifies the number of cells needed to encode an interrupt source. The 1st cell contains the interrupt number. The 2nd cell is the trigger type and level flags encoded as follows: 1 = low-to-high edge triggered 2 = high-to-low edge triggered 4 = active high level-sensitive 8 = active low level-sensitive - interrupt-controller: Usage: required Value type: <empty> Definition: identifies this node as an interrupt controller = SUBCOMPONENTS The PMIC contains multiple independent functions, each described in a subnode. The below bindings specify the set of valid subnodes. == Real-Time Clock - compatible: Usage: required Value type: <string> Definition: must be one of: "qcom,pm8058-rtc" "qcom,pm8921-rtc" "qcom,pm8941-rtc" "qcom,pm8018-rtc" - reg: Usage: required Value type: <prop-encoded-array> Definition: single entry specifying the base address of the RTC registers - interrupts: Usage: required Value type: <prop-encoded-array> Definition: single entry specifying the RTC's alarm interrupt - allow-set-time: Usage: optional Value type: <empty> Definition: indicates that the setting of RTC time is allowed by the host CPU = EXAMPLE pmicintc: pmic@0 { compatible = "qcom,pm8921"; interrupts = <104 8>; #interrupt-cells = <2>; interrupt-controller; #address-cells = <1>; #size-cells = <0>; rtc@11d { compatible = "qcom,pm8921-rtc"; reg = <0x11d>; interrupts = <0x27 0>; }; }; |