Merge "input: sensors: interrupt and power enabling pins are optional"

 - interrupts		: Gyrometer sample interrupt to indicate new data ready.

 - vdd-supply		: Analog power supply needed to power device.

 - vlogic-supply	: Digital IO power supply needed for IO and I2C.

 - invn,gpio-int	: GPIO used for interrupt.

 - invn,gpio-en		: GPIO used for power enabling.

Optional properties:

 - invn,use-interrupt	: use device interrupt to trigger data acquisition

			instead of polling data.

 - invn,gpio-int	: GPIO used for interrupt.

 - invn,gpio-en		: GPIO used for power enabling.

Example:

	i2c@f9925000 {

		mpu6050@68 {

			#address-cells = <1>;

			#size-cells = <0>;

			status = "okay";

			reg = <0x68>;

			compatible = "invn,mpu3050";

			interrupt-parent = <&msmgpio>;

			compatible = "invn,mpu6050";

			interrupt-parent = <&msm_gpio>;

			interrupts = <84 0x2>;

			vlogic-supply = <&pm8110_l14>;

			vdd-supply = <&pm8110_l19>;

			invn,gpio-int = <&msmgpio 84 0x2>;

			invn,gpio-en = <&pm8110_gpios 2 0x2>;

			vlogic-supply = <&pm8916_l17>;

			vdd-supply = <&pm8916_l6>;

		};

	};

	pdata->gpio_en = of_get_named_gpio_flags(dev->of_node,

				"invn,gpio-en", 0, NULL);

	if (!gpio_is_valid(pdata->gpio_en))

		return -EINVAL;

	pdata->use_int = of_property_read_bool(dev->of_node,

				"invn,use-interrupt");