Kernel-4.18.0-80.el8_qcom-pm8xxx

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:
  Definition: must be one of:

        "qcom,pm8058"
        "qcom,pm8821"
        "qcom,pm8921"
  

• #address-cells:
  Usage: required
  Value type:
  Definition: must be 1

• #size-cells:
  Usage: required
  Value type:
  Definition: must be 0

• interrupts:
  Usage: required
  Value type:
  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 :
  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:
  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:
  Definition: must be one of:

        "qcom,pm8058-rtc"
        "qcom,pm8921-rtc"
        "qcom,pm8941-rtc"
        "qcom,pm8018-rtc"
  

• reg:
  Usage: required
  Value type:
  Definition: single entry specifying the base address of the RTC registers

• interrupts:
  Usage: required
  Value type:
  Definition: single entry specifying the RTC’s alarm interrupt

• allow-set-time:
  Usage: optional
  Value type:
  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>;
    };
};