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>
80 lines
1.6 KiB
Plaintext
80 lines
1.6 KiB
Plaintext
# CCS811 Digital Gas sensor configuration options
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# Copyright (c) 2018 Linaro Ltd.
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# Copyright (c) 2018 Peter Bigot Consulting, LLC
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#
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# SPDX-License-Identifier: Apache-2.0
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menuconfig CCS811
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bool "CCS811 Digital Gas Sensor"
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default y
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depends on DT_HAS_AMS_CCS811_ENABLED
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select I2C
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help
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Enable driver for CCS811 Gas sensors.
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if CCS811
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choice CCS811_DRIVE_MODE
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prompt "Measurement drive mode"
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default CCS811_DRIVE_MODE_1
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help
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Specifies the measurement rate used by the driver.
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config CCS811_DRIVE_MODE_0
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bool "Measurements disabled"
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config CCS811_DRIVE_MODE_1
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bool "Measurement every second"
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config CCS811_DRIVE_MODE_2
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bool "Measurement every ten seconds"
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config CCS811_DRIVE_MODE_3
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bool "Measurement every sixty seconds"
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config CCS811_DRIVE_MODE_4
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bool "Measurement every 250 milliseconds"
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endchoice
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config CCS811_TRIGGER
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bool
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choice
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prompt "Trigger mode"
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default CCS811_TRIGGER_NONE
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help
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Specify the type of triggering to be used by the driver.
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config CCS811_TRIGGER_NONE
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bool "No trigger"
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config CCS811_TRIGGER_GLOBAL_THREAD
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bool "Use global thread"
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depends on GPIO
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select CCS811_TRIGGER
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config CCS811_TRIGGER_OWN_THREAD
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bool "Use own thread"
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depends on GPIO
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select CCS811_TRIGGER
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endchoice
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config CCS811_THREAD_PRIORITY
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int "Thread priority"
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depends on CCS811_TRIGGER_OWN_THREAD
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default 10
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help
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Priority of thread used by the driver to handle interrupts.
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config CCS811_THREAD_STACK_SIZE
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int "Thread stack size"
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depends on CCS811_TRIGGER_OWN_THREAD
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default 1024
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help
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Stack size of thread used by the driver to handle interrupts.
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endif # CCS811
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