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bosch,bmp388 (on spi bus)

Vendor: Bosch Sensortec GmbH

Description

Bosch BMP388 pressure sensor accessed through SPI bus

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

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

odr

string

Default output data rate in Hz. Only the following values are allowed:
  200   - 200     - 5ms  (default; chip reset value)
  100   - 100     - 10ms
  50    - 50      - 20ms
  25    - 25      - 40ms
  12.5  - 25/2    - 80ms
  6.25  - 25/4    - 160ms
  3.125 - 25/8    - 320ms
  1.563 - 25/16   - 640ms
  .781  - 25/32   - 1.28s
  .391  - 25/64   - 2.56s
  .195  - 25/128  - 5.12s
  .098  - 25/256  - 10.24s
  .049  - 25/512  - 20.48s
  .024  - 25/1024 - 40.96s
  .012  - 25/2048 - 81.92s
  .006  - 25/4096 - 163.84s
  .003  - 25/8192 - 327.68s

Default value: 200

Legal values: '200', '100', '50', '25', '12.5', '6.25', '3.125', '1.563', '.781', '.391', '.195', '.098', '.049', '.024', '.012', '.006', '.003'

osr-press

int

Default pressure oversampling rate. Only the following values are
allowed:
  1 sample, 16-bit, 2.64 Pa
  2 samples, 17-bit, 1.32 Pa
  4 samples, 18-bit, 0.66 Pa (default; chip reset value)
  8 samples, 19-bit, 0.33 Pa
  16 samples, 20-bit, 0.17 Pa
  32 Samples, 21-bit, 0.085 Pa

Default value: 4

Legal values: 1, 2, 4, 8, 16, 32

osr-temp

int

Default temperature oversampling rate. Only the following values are
allowed:
  1 sample, 16-bit, .0050 C (default; chip reset value)
  2 samples, 17-bit, .0025 C
  4 samples, 18-bit, .0012 C
  8 samples, 19-bit, .0006 C
  16 samples, 20-bit, .0003 C
  32 Samples, 21-bit, .00015 C

Default value: 1

Legal values: 1, 2, 4, 8, 16, 32

iir-filter

int

Default IIR filter coefficient. The default 0 is the chip reset value.

Legal values: 0, 1, 3, 7, 15, 31, 63, 127