QPNP Vibrator

QPNP (Qualcomm Plug N Play) vibrator is a peripheral on
Qualcomm PMICs.  The PMIC is connected to Host processor
via SPMI bus.

Required Properties:
 - status: default status is set to "disabled.  Must be "okay"
 - compatible: must be "qcom,qpnp-vibrator"
 - label: name which describes the device
 - reg: address of device

Optional Properties:
 - qcom,vib-timeout-ms: timeout of vibrator, in ms.  Default 15000 ms
 - qcom,vib-vtg-level-mV: voltage level, in mV.  Default 3100 mV

Example:
		qcom,vib@c000 {
			status = "okay";
			compatible = "qcom,qpnp-vibrator";
			reg = <0xc000 0x100>;
			label = "vibrator";
			qcom,vib-timeout-ms = <15000>;
			qcom,vib-vtg-level-mV = <3100>;
		};