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Commit 4076b0f3 authored by zhaochen's avatar zhaochen
Browse files

icm20602: Add new driver of icm20602 



Support new IMU device icm20602 based on I2C interface

Icm20602 can provide accel/gyro and temperature data through
i2c in 400kb/s or spi 10mb/s interface.
Icm20602 driver can  push the data to userspace in a water level
which is config by the driver application.

Change-Id: I138ab362254c95a9196623fa2263f56a00f40874
Signed-off-by: default avatarzhaochen <zhaochen@codeaurora.org>
parent 2733dc20

Documentation/devicetree/bindings/iio/imu/invn-icm20602.txt

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The ICM20602 sensor is 6-axis gyroscope+accelerometer combo

device which is made by InvenSense Inc.



The datasheet can be found as the following link:

https://www.invensense.com/products/motion-tracking/6-axis/icm-20602/



Required properties:



 - compatible	: Should be "invn,icm20602".

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



Optional properties:

 - invn,icm20602-irq:  the irq gpio. This is not used if

 using SMD to trigger. this is needed only if using the

 device IRQ to trigger. Only using SMD to trigger can

 support 8K sample rate.



Example:

	icm20602-i2c@068 {

		compatible = "invn,icm20602";

		reg = <0x68>;

		interrupt-parent = <&msm_gpio>;

		interrupts = <13 0>;

		invn,icm20602-irq = <&msm_gpio 13 0x0>;

		pinctrl-names = "imu_active","imu_suspend";

		pinctrl-0 = <&imu_int_active>;

		pinctrl-1 = <&imu_int_suspend>;

		status = "okay";

	};

drivers/iio/imu/Kconfig

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@@ -29,6 +29,7 @@ source "drivers/iio/imu/inv_mpu6050/Kconfig" 
source "drivers/iio/imu/inv_icm20689/Kconfig"

source "drivers/iio/imu/bmi160/Kconfig"

source "drivers/iio/imu/inv_mpu9250/Kconfig"

source "drivers/iio/imu/inv_icm20602/Kconfig"



endmenu

drivers/iio/imu/Makefile

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@@ -15,5 +15,6 @@ obj-$(CONFIG_IIO_ADIS_LIB) += adis_lib.o 


obj-y += inv_mpu6050/

obj-y += inv_icm20689/

obj-y += inv_icm20602/

obj-y += bmi160/

obj-y += inv_mpu9250/

drivers/iio/imu/inv_icm20602/Kconfig

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#

# inv-icm20602 drivers for Invensense MPU devices and combos

#

config INV_ICM20602_IIO

	tristate "Invensense ICM20602 devices"

	depends on I2C && SYSFS

	select IIO_BUFFER

	select IIO_BUFFER_CB

	select IIO_TRIGGERED_BUFFER

	help

	  This driver supports the Invensense ICM20602 devices.

	  It is a gyroscope/accelerometer combo device.

	  This driver can be built as a module. The module will be called

	  inv-icm20602.

drivers/iio/imu/inv_icm20602/Makefile

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#

# Makefile for Invensense icm20602 device.

#



obj-$(CONFIG_INV_ICM20602_IIO) += inv-icm20602.o

inv-icm20602-objs := inv_icm20602_core.o inv_icm20602_ring.o inv_icm20602_trigger.o inv_icm20602_bsp.o