invensense,icm42670p (on spi bus)

Vendor: InvenSense Inc.

Note

An implementation of a driver matching this compatible is available in drivers/sensor/tdk/icm42670/icm42670.c.

Description

ICM-42670-P motion tracking device

Properties

Properties not inherited from the base binding file.

Name

Type

Details

spi-max-frequency

int

 
Maximum clock frequency of device's SPI interface in Hz

This property is required.

duplex

int

 
Duplex mode, full or half. By default it's always full duplex thus 0
as this is, by far, the most common mode.
Use the macros not the actual enum value, here is the concordance
list (see dt-bindings/spi/spi.h)
  0    SPI_FULL_DUPLEX
  2048 SPI_HALF_DUPLEX

Legal values: 0, 2048

frame-format

int

 
Motorola or TI frame format. By default it's always Motorola's,
thus 0 as this is, by far, the most common format.
Use the macros not the actual enum value, here is the concordance
list (see dt-bindings/spi/spi.h)
  0     SPI_FRAME_FORMAT_MOTOROLA
  32768 SPI_FRAME_FORMAT_TI

Legal values: 0, 32768

spi-cpol

boolean

 
SPI clock polarity which indicates the clock idle state.
If it is used, the clock idle state is logic high; otherwise, low.

spi-cpha

boolean

 
SPI clock phase that indicates on which edge data is sampled.
If it is used, data is sampled on the second edge; otherwise, on the first edge.

spi-hold-cs

boolean

 
In some cases, it is necessary for the master to manage SPI chip select
under software control, so that multiple spi transactions can be performed
without releasing it. A typical use case is variable length SPI packets
where the first spi transaction reads the length and the second spi transaction
reads length bytes.

supply-gpios

phandle-array

 
GPIO specifier that controls power to the device.

This property should be provided when the device has a dedicated
switch that controls power to the device.  The supply state is
entirely the responsibility of the device driver.

Contrast with vin-supply.

vin-supply

phandle

 
Reference to the regulator that controls power to the device.
The referenced devicetree node must have a regulator compatible.

This property should be provided when device power is supplied
by a shared regulator.  The supply state is dependent on the
request status of all devices fed by the regulator.

Contrast with supply-gpios.  If both properties are provided
then the regulator must be requested before the supply GPIOS is
set to an active state, and the supply GPIOS must be set to an
inactive state before releasing the regulator.

int-gpios

phandle-array

 
The INT signal default configuration is active-high. The
property value should ensure the flags properly describe the
signal that is presented to the driver.

accel-hz

int

 
Default frequency of accelerometer. (Unit - Hz)
Maps to ACCEL_ODR field in ACCEL_CONFIG0 setting
Power-on reset value is 800.

This property is required.

Legal values: 0, 1600, 800, 400, 200, 100, 50, 25, 12, 6, 3, 1

gyro-hz

int

 
Default frequency of gyroscope. (Unit - Hz)
Maps to GYRO_ODR field in GYRO_CONFIG0 setting
Power-on reset value is 800.

This property is required.

Legal values: 0, 1600, 800, 400, 200, 100, 50, 25, 12

power-mode

string

 
Power mode.
Low power mode is allowed for accelerometer sensor only from
1.5625Hz to 400Hz.
The default is chosen to support both accelerometer and
gyroscope sensors.

Default value: low-noise

Legal values: 'low-noise', 'low-power'

accel-fs

int

 
Default full scale of accelerometer. (Unit - g)
Maps to ACCEL_FS_SEL field in ACCEL_CONFIG0 setting
Power-on reset value is 16

This property is required.

Legal values: 16, 8, 4, 2

accel-avg

int

 
Averaging filter setting to create accelerometer output
in accelerometer low power mode.
Maps to ACCEL_UI_AVG field in ACCEL_CONFIG1 setting.
The default corresponds to the reset value of the register field.

Default value: 32

Legal values: 2, 4, 8, 16, 32, 64

accel-filt-bw-hz

int

 
Accelerometer low pass filter bandwidth frequency (Unit - Hz).
Maps to ACCEL_UI_FILT_BW field in ACCEL_CONFIG1 setting.
The default corresponds to the reset value of the register field.

Default value: 180

Legal values: 0, 180, 121, 73, 53, 34, 25, 16

gyro-fs

int

 
Default full scale of gyroscope. (Unit - DPS)
Maps to GYRO_FS_SEL field in GYRO_CONFIG0 setting
Power-on reset value is 2000

This property is required.

Legal values: 2000, 1000, 500, 250

gyro-filt-bw-hz

int

 
Gyroscope low pass filter bandwidth frequency (Unit - Hz).
Maps to GYRO_UI_FILT_BW field in GYRO_CONFIG1 setting.
The default corresponds to the reset value of the register field.

Default value: 180

Legal values: 0, 180, 121, 73, 53, 34, 25, 16

apex

string

 
APEX (Advanced Pedometer and Event Detection) features. It consists of:
* Pedometer: Tracks step count, and provide details such as the cadence and
             the estimated activity type (Walk, Run, Unknown).
* Tilt Detection: Detects the Tilt when tilting the board with an angle of
                  30 degrees or more held for 4 seconds.
* Wake on Motion (WoM): Detects motion per axis exceeding 195 mg threshold.
* Significant Motion Detector (SMD): Detects when the user has moved significantly.

Default value: none

Legal values: 'none', 'pedometer', 'tilt', 'smd', 'wom'

friendly-name

string

 
Human readable string describing the sensor. It can be used to
distinguish multiple instances of the same model (e.g., lid accelerometer
vs. base accelerometer in a laptop) to a host operating system.

This property is defined in the Generic Sensor Property Usages of the HID
Usage Tables specification
(https://usb.org/sites/default/files/hut1_3_0.pdf, section 22.5).