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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>;
};
};
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