zephyr/drivers/sensor/bme280/Kconfig
Kumar Gala df81fef944 drivers: sensor: Convert Kconfig bus 'depends on' to 'select'
This change in pattern is meant to address a misconfiguration issue
that can occur for sensors that support being on multiple busses
like I2C & SPI.

For example, you can have a configuration in which such a sensor is
on the I2C bus in the devicetree and the sensor is enabled.  However
the application configuration enables CONFIG_SPI=y and CONFIG_I2C=n
and this will cause the sensor driver to be built by default, however
since we don't have the I2C bus enabled the driver will not compile
correctly.

Previously we had been adding to board Kconfig.defconfig something
like:

	config I2C
		default y if SENSOR

This pattern doesn't scale well and may differ from what an application
specific need/use is.

So instead move to a pattern in which we leave the default enablement
up to the devicetree "status" property for the sensor.  We then have
the Kconfig move from 'depends on <BUS>' to 'select <BUS>' and in
the case of drivers that support multiple busses we have the Kconfig
be: 'select <BUS> if $(dt_compat_on_bus,$(<DT_COMPAT>),<BUS>) for
each bus type the sensor supports.

This removes the need to add Kconfig logic to each board and enables
the bus subsystem and bus controller driver if the sensor requires
it by default in the build system.

Fixes: #48518

Signed-off-by: Kumar Gala <galak@kernel.org>
2022-08-08 06:58:18 +01:00

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# BMP280 temperature and pressure sensor configuration options
# Copyright (c) 2016 Intel Corporation
# Copyright (c) 2017 IpTronix S.r.l.
# SPDX-License-Identifier: Apache-2.0
menuconfig BME280
bool "BME280/BMP280 sensor"
default y
depends on DT_HAS_BOSCH_BME280_ENABLED
select I2C if $(dt_compat_on_bus,$(DT_COMPAT_BOSCH_BME280),i2c)
select SPI if $(dt_compat_on_bus,$(DT_COMPAT_BOSCH_BME280),spi)
help
Enable driver for BME280 I2C-based or SPI-based temperature and pressure sensor.
if BME280
choice
prompt "BME280 sampling mode"
default BME280_MODE_NORMAL
help
Select sampling mode. In normal mode continuous measurements are
performed, whereas in forced mode only single measurement is performed.
config BME280_MODE_NORMAL
bool "normal"
config BME280_MODE_FORCED
bool "forced"
endchoice
choice
prompt "BME280 temperature oversampling"
default BME280_TEMP_OVER_2X
help
Select temperature oversampling for the BME280 sensor. Higher values
lead to more accurate readings, but higher power consumption.
config BME280_TEMP_OVER_1X
bool "x1"
config BME280_TEMP_OVER_2X
bool "x2"
config BME280_TEMP_OVER_4X
bool "x4"
config BME280_TEMP_OVER_8X
bool "x8"
config BME280_TEMP_OVER_16X
bool "x16"
endchoice
choice
prompt "BME280 pressure oversampling"
default BME280_PRESS_OVER_16X
help
Select pressure oversampling for the BME280 sensor. Higher values
lead to more accurate readings, but higher power consumption.
config BME280_PRESS_OVER_1X
bool "x1"
config BME280_PRESS_OVER_2X
bool "x2"
config BME280_PRESS_OVER_4X
bool "x4"
config BME280_PRESS_OVER_8X
bool "x8"
config BME280_PRESS_OVER_16X
bool "x16"
endchoice
choice
prompt "BME280 humidity oversampling"
default BME280_HUMIDITY_OVER_16X
help
Select humidity oversampling for the BME280 sensor. Higher values
lead to more accurate readings, but higher power consumption.
config BME280_HUMIDITY_OVER_1X
bool "x1"
config BME280_HUMIDITY_OVER_2X
bool "x2"
config BME280_HUMIDITY_OVER_4X
bool "x4"
config BME280_HUMIDITY_OVER_8X
bool "x8"
config BME280_HUMIDITY_OVER_16X
bool "x16"
endchoice
choice
prompt "BME280 standby time"
default BME280_STANDBY_1000MS
help
Select standby time between measurements for the BME280 sensor.
Higher values lead to lower power consumption.
config BME280_STANDBY_05MS
bool "0.5ms"
config BME280_STANDBY_62MS
bool "62.5ms"
config BME280_STANDBY_125MS
bool "125ms"
config BME280_STANDBY_250MS
bool "250ms"
config BME280_STANDBY_500MS
bool "500ms"
config BME280_STANDBY_1000MS
bool "1000ms"
config BME280_STANDBY_2000MS
bool "2000ms BMP280 / 10ms BME280"
config BME280_STANDBY_4000MS
bool "4000ms BMP280 / 20ms BME280"
endchoice
choice
prompt "BME280 filter coefficient"
default BME280_FILTER_4
help
Select the filter coefficient for the BME280 sensor.
config BME280_FILTER_OFF
bool "filter off"
config BME280_FILTER_2
bool "2"
config BME280_FILTER_4
bool "4"
config BME280_FILTER_8
bool "8"
config BME280_FILTER_16
bool "16"
endchoice
endif # BME280