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Commit 7de08dba authored by Ji Xu's avatar Ji Xu
Browse files

iio: Add new driver for icm20602 



Support new IMU device of icm20602 based on I2C interface.

Icm20602 can provide accelerator or gyro and temperature data
through I2C 400 Kbps or SPI 10 Mbps interface. It can also share
the data to userspace based on the water level configured by the userspace.

Change-Id: Ibac2ce1be517eccbf1b548d88b33372637300dee
Signed-off-by: default avatarxuji <xuji@codeaurora.org>
parent 8db2427a

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.



Required properties:



 - compatible	: Should be "invensense,icm20602".

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

 - interrupt-parent	: should be the phandle for the interrupt controller

 - interrupts	: interrupt mapping for GPIO IRQ



Optional properties:

 - invensense,icm20602-gpio:  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 = "invensense,icm20602";

		reg = <0x68>;

		interrupt-parent = <&msm_gpio>;

		interrupts = <13 0>;

		invensense,icm20602-gpio = <&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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@@ -39,6 +39,7 @@ config KMX61 
	  be called kmx61.



source "drivers/iio/imu/inv_mpu6050/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 += bmi160/

obj-y += inv_mpu6050/

obj-y += inv_icm20602/



obj-$(CONFIG_KMX61) += kmx61.o

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