IMAGIS isa1000 haptic vibrator

Required properties:

 - compatible: Must be "imagis,isa1000_vibrator".

 - isa1000,motor_type: "LINEAR"

 - pwms: Pwm phandle of the device.

 - isa1000,frequency: Vibrator frequency value. If 205Hz, "2050".

 - isa1000,duty_ratio: Duty percentage of pwm.

Optional properties:

 - isa1000,gpio_en: GPIO used for enable motor.

 - isa1000,regulator_name: Regulator name used for enable motor.

 - pinctrl variants.

Examples:

 isa1000_vibrator {
	 compatible = "imagis,isa1000_vibrator";
	 status = "okay";
	 pwms = <&pwm 0 50000 0>;
	 haptic,frequency = <2050>; /* 205Hz */
	 isa1000,duty_ratio = <90>;
	 isa1000,gpio_en = <&gpio 1 0>;
	 isa1000,regulator_name = "VDD_LDO";
	 isa1000,motor_type = "LINEAR";
 };