drivers: iio: imu: add IAM20680 DT Bindings

The IAM20680 sensor is 6-axis gyroscope+accelerometer combo

device which is made by InvenSense Inc.

Required properties:

 - compatible   : Should be "invn,iam20680".

 - reg          : the I2C address which depends on the AD0 pin.

 - gpios        : INVENSENSE GPIO in the format described by ../gpio/gpio.txt

Optional properties:

 - inven,vdd_ana-supply :

 - inven,vcc_i2c-supply :

 - inven,gpio_int1 :

 - axis_map_x :

 - axis_map_y :

 - axis_map_z :

 - negate_x   :

 - negate_y   :

 - negate_z   :

 - fs_range :

 - poll_interval :

 - min_interval :

 - inven,secondary_reg :

 - inven,secondary_type :

 - inven,secondary_name :

 - inven,secondary_axis_map_x :

 - inven,secondary_axis_map_y :

 - inven,secondary_axis_map_z :

 - inven,secondary_negate_x :

 - inven,secondary_negate_y :

 - inven,secondary_negate_z :

 - inven,aux_type :

 - inven,aux_name :

 - inven,aux_reg :

 - inven,read_only_slave_type :

 - inven,read_only_slave_name :

 - inven,read_only_slave_reg :

Example:

	iam20680@69 {

		compatible = "inven,iam20680";

		reg = <0x69>;

		pinctrl-names = "default";

		pinctrl-0 = <&int1_default>;

		interrupt-parent = <&tlmm_pinmux>;

		interrupts = <78 IRQ_TYPE_EDGE_RISING>;

		inven,vdd_ana-supply = <&pm8941_l17>;

		inven,vcc_i2c-supply = <&pm8941_lvs1>;

		inven,gpio_int1 = <&msmgpio 73 0x00>;

		axis_map_x = <1>;

		axis_map_y = <0>;

		axis_map_z = <2>;

		negate_x = <1>;

		negate_y = <0>;

		negate_z = <0>;

		fs_range = <0x00>;

		poll_interval = <200>;

		min_interval = <5>;

		inven,secondary_reg = <0x0c>;

		/* If no compass sensor,

		 * replace "compass" with "none"

		 */

		inven,secondary_type = "compass";

		inven,secondary_name = "ak09911";

		inven,secondary_axis_map_x = <1>;

		inven,secondary_axis_map_y = <0>;

		inven,secondary_axis_map_z = <2>;

		inven,secondary_negate_x = <1>;

		inven,secondary_negate_y = <1>;

		inven,secondary_negate_z = <1>;

		/* If no pressure sensor,

		 * replace "pressure" with "none"

		 */

		inven,aux_type = "pressure";

		inven,aux_name = "bmp280";

		inven,aux_reg = <0x76>;

		/* If no ALS sensor

		 * replace "als" with "none"

		 */

		inven,read_only_slave_type = "als";

		inven,read_only_slave_name = "apds9930";

		inven,read_only_slave_reg = <0x39>;

	};

zyxel	ZyXEL Communications Corp.

zarlink	Zarlink Semiconductor

bosch-sensortec»    Bosch Sensortec GmbH

inven   InvenSense, Inc.

lontium Lontium Semiconductor

himax	Himax Technologies, Inc.

hxcommon	Himax Technologies, Inc.

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