51 lines
1.4 KiB
Text
51 lines
1.4 KiB
Text
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Qualcomm Technologies, Inc. Vibrator-LDO
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QPNP (Qualcomm Technologies, Inc. Plug N Play) Vibrator-LDO is a peripheral
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on some QTI PMICs. It can be interfaced with the host processor via SPMI.
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Vibrator-LDO peripheral supports Eccentric Rotation Mass (ERM) vibrator.
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Properties:
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- compatible
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Usage: required
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Value type: <string>
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Definition: "qcom,qpnp-vibrator-ldo".
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- reg
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Usage: required
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Value type: <u32>
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Definition: Base address of vibrator-ldo peripheral.
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- qcom,vib-ldo-volt-uv
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Usage: required
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Value type: <u32>
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Definition: The optimal voltage requirement of the vibrator motor for
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a normal vibration. Value is specified in microvolts.
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- qcom,disable-overdrive
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Usage: optional
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Value type: <empty>
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Definition: Do not apply overdrive voltage.
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- qcom,vib-overdrive-volt-uv
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Usage: optional and not required if qcom,disable-overdrive present
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Value type: <u32>
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Definition: The voltage in microvolts used as overdrive factor for
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improving motor reactivity at the start of vibration.
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If this property not specified, a default value of
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2 times the value specified in qcom,vib-ldo-volt-uv
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property is used.
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=======
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Example
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=======
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pmi632_vib: qcom,vibrator@5700 {
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compatible = "qcom,qpnp-vibrator-ldo";
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reg = <0x5700 0x100>;
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qcom,vib-ldo-volt-uv = <1504000>;
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qcom,disable-overdrive;
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qcom,vib-overdrive-volt-uv = <3544000>;
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};
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