32 lines
1.3 KiB
Plaintext
32 lines
1.3 KiB
Plaintext
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Qualcomm Global Distributed Switch Controller (GDSC) Regulator Driver
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The GDSC driver, implemented under the regulator framework, is responsible for
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safely collapsing and restoring power to peripheral cores on chipsets like
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msm8974 for power savings.
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Required properties:
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- compatible: Must be "qcom,gdsc"
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- regulator-name: A string used as a descriptive name for regulator outputs
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- reg: The address of the GDSCR register
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Optional properties:
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- parent-supply: phandle to the parent supply/regulator node
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- qcom,clock-names: List of string names for core clocks
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- qcom,retain-mem: Presence denotes a hardware requirement to leave the
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forced core memory retention signals in the core's clock
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branch control registers asserted.
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- qcom,retain-periph: Presence denotes a hardware requirement to leave the
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forced periph memory retention signal in the core's clock
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branch control registers asserted.
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- qcom,skip-logic-collapse: Presence denotes a requirement to leave power to
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the core's logic enabled.
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Example:
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gdsc_oxili_gx: qcom,gdsc@fd8c4024 {
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compatible = "qcom,gdsc";
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regulator-name = "gdsc_oxili_gx";
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parent-supply = <&pm8841_s4>;
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reg = <0xfd8c4024 0x4>;
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qcom,clock-names = "core_clk";
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};
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