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QCOM SMD RPM REGULATOR
The Qualcomm RPM over SMD regulator is modelled as a subdevice of the RPM.
Because SMD is used as the communication transport mechanism, the RPM resides as
a subnode of the SMD. As such, the SMD-RPM regulator requires that the SMD and
RPM nodes be present.
Please refer to Documentation/devicetree/bindings/soc/qcom/qcom,smd.txt for
information pertaining to the SMD node.
Please refer to Documentation/devicetree/bindings/soc/qcom/qcom,smd-rpm.txt for
information regarding the RPM node.
== Regulator
Regulator nodes are identified by their compatible:
- compatible:
Usage: required
Value type: <string>
Definition: must be one of:
"qcom,rpm-pm8841-regulators"
"qcom,rpm-pm8916-regulators"
"qcom,rpm-pm8941-regulators"
- vdd_s1-supply:
- vdd_s2-supply:
- vdd_s3-supply:
- vdd_s4-supply:
- vdd_s5-supply:
- vdd_s6-supply:
- vdd_s7-supply:
- vdd_s8-supply:
Usage: optional (pm8841 only)
Value type: <phandle>
Definition: reference to regulator supplying the input pin, as
described in the data sheet
- vdd_s1-supply:
- vdd_s2-supply:
- vdd_s3-supply:
- vdd_s4-supply:
- vdd_l1_l2_l3-supply:
- vdd_l4_l5_l6-supply:
- vdd_l7-supply:
- vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18-supply:
Usage: optional (pm8916 only)
Value type: <phandle>
Definition: reference to regulator supplying the input pin, as
described in the data sheet
- vdd_s1-supply:
- vdd_s2-supply:
- vdd_s3-supply:
- vdd_l1_l3-supply:
- vdd_l2_lvs1_2_3-supply:
- vdd_l4_l11-supply:
- vdd_l5_l7-supply:
- vdd_l6_l12_l14_l15-supply:
- vdd_l8_l16_l18_l19-supply:
- vdd_l9_l10_l17_l22-supply:
- vdd_l13_l20_l23_l24-supply:
- vdd_l21-supply:
- vin_5vs-supply:
Usage: optional (pm8941 only)
Value type: <phandle>
Definition: reference to regulator supplying the input pin, as
described in the data sheet
The regulator node houses sub-nodes for each regulator within the device. Each
sub-node is identified using the node's name, with valid values listed for each
of the pmics below.
pm8841:
s1, s2, s3, s4, s5, s6, s7, s8
pm8916:
s1, s2, s3, s4, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13,
l14, l15, l16, l17, l18
pm8941:
s1, s2, s3, s4, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13,
l14, l15, l16, l17, l18, l19, l20, l21, l22, l23, l24, lvs1, lvs2,
lvs3, 5vs1, 5vs2
The content of each sub-node is defined by the standard binding for regulators -
see regulator.txt.
= EXAMPLE
smd {
compatible = "qcom,smd";
rpm {
interrupts = <0 168 1>;
qcom,ipc = <&apcs 8 0>;
qcom,smd-edge = <15>;
rpm_requests {
compatible = "qcom,rpm-msm8974";
qcom,smd-channels = "rpm_requests";
pm8941-regulators {
compatible = "qcom,rpm-pm8941-regulators";
vdd_l13_l20_l23_l24-supply = <&pm8941_boost>;
pm8941_s3: s3 {
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
};
pm8941_boost: s4 {
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
};
pm8941_l20: l20 {
regulator-min-microvolt = <2950000>;
regulator-max-microvolt = <2950000>;
};
};
};
};
};
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