60 lines
1.4 KiB
Plaintext
60 lines
1.4 KiB
Plaintext
Qualcomm Resource Power Manager (RPM) over SMD
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This driver is used to interface with the Resource Power Manager (RPM) found in
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various Qualcomm platforms. The RPM allows each component in the system to vote
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for state of the system resources, such as clocks, regulators and bus
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frequencies.
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The SMD information for the RPM edge should be filled out. See qcom,smd.txt for
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the required edge properties. All SMD related properties will reside within the
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RPM node itself.
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= SUBDEVICES
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The RPM exposes resources to its subnodes. The rpm_requests node must be
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present and this subnode may contain children that designate regulator
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resources.
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- compatible:
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Usage: required
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Value type: <string>
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Definition: must be one of:
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"qcom,rpm-apq8084"
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"qcom,rpm-msm8916"
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"qcom,rpm-msm8974"
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"qcom,rpm-msm8998"
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- qcom,smd-channels:
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Usage: required
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Value type: <string>
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Definition: must be "rpm_requests"
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Refer to Documentation/devicetree/bindings/regulator/qcom,smd-rpm-regulator.txt
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for information on the regulator subnodes that can exist under the rpm_requests.
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Example:
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soc {
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apcs: syscon@f9011000 {
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compatible = "syscon";
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reg = <0xf9011000 0x1000>;
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};
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};
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smd {
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compatible = "qcom,smd";
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rpm {
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interrupts = <0 168 1>;
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qcom,ipc = <&apcs 8 0>;
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qcom,smd-edge = <15>;
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rpm_requests {
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compatible = "qcom,rpm-msm8974";
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qcom,smd-channels = "rpm_requests";
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...
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};
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};
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};
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