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| Qualcomm Resource Power Manager (RPM) over SMD
|
| This driver is used to interface with the Resource Power Manager (RPM) found in
| various Qualcomm platforms. The RPM allows each component in the system to vote
| for state of the system resources, such as clocks, regulators and bus
| frequencies.
|
| The SMD information for the RPM edge should be filled out. See qcom,smd.txt for
| the required edge properties. All SMD related properties will reside within the
| RPM node itself.
|
| = SUBDEVICES
|
| The RPM exposes resources to its subnodes. The rpm_requests node must be
| present and this subnode may contain children that designate regulator
| resources.
|
| - compatible:
| Usage: required
| Value type: <string>
| Definition: must be one of:
| "qcom,rpm-apq8084"
| "qcom,rpm-msm8916"
| "qcom,rpm-msm8974"
| "qcom,rpm-msm8998"
|
| - qcom,smd-channels:
| Usage: required
| Value type: <string>
| Definition: must be "rpm_requests"
|
| Refer to Documentation/devicetree/bindings/regulator/qcom,smd-rpm-regulator.txt
| for information on the regulator subnodes that can exist under the rpm_requests.
|
| Example:
|
| soc {
| apcs: syscon@f9011000 {
| compatible = "syscon";
| reg = <0xf9011000 0x1000>;
| };
| };
|
| 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";
|
| ...
| };
| };
| };
|
|
