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>
21 lines
471 B
Plaintext
21 lines
471 B
Plaintext
# Copyright (c) 2019 Electronut Labs
|
|
# Copyright (c) 2020 Laird Connectivity
|
|
# SPDX-License-Identifier: Apache-2.0
|
|
|
|
menuconfig SI7055
|
|
bool "Si7055 Temperature Sensor"
|
|
default y
|
|
depends on DT_HAS_SILABS_SI7055_ENABLED
|
|
select I2C
|
|
help
|
|
Enable I2C-based driver for Si7055 Temperature Sensor.
|
|
|
|
if SI7055
|
|
|
|
config SI7055_ENABLE_CHECKSUM
|
|
bool "SI7055 Checksum On Measurement"
|
|
help
|
|
Validates the additional checksum byte for temperature measurements.
|
|
|
|
endif # SI7055
|