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>
101 lines
2.1 KiB
Plaintext
101 lines
2.1 KiB
Plaintext
# ST Microelectronics IIS2DH 3-axis accelerometer driver
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# Copyright (c) 2020 STMicroelectronics
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# SPDX-License-Identifier: Apache-2.0
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menuconfig IIS2DH
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bool "IIS2DH I2C/SPI accelerometer sensor driver"
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default y
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depends on DT_HAS_ST_IIS2DH_ENABLED
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select I2C if $(dt_compat_on_bus,$(DT_COMPAT_ST_IIS2DH),i2c)
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select SPI if $(dt_compat_on_bus,$(DT_COMPAT_ST_IIS2DH),spi)
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select HAS_STMEMSC
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select USE_STDC_IIS2DH
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help
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Enable driver for IIS2DH accelerometer sensor driver
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if IIS2DH
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choice IIS2DH_TRIGGER_MODE
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prompt "Trigger mode"
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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 IIS2DH_TRIGGER_NONE
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bool "No trigger"
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config IIS2DH_TRIGGER_GLOBAL_THREAD
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bool "Use global thread"
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depends on GPIO
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select IIS2DH_TRIGGER
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config IIS2DH_TRIGGER_OWN_THREAD
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bool "Use own thread"
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depends on GPIO
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select IIS2DH_TRIGGER
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endchoice
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config IIS2DH_TRIGGER
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bool
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if IIS2DH_TRIGGER
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config IIS2DH_THREAD_PRIORITY
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int "Thread priority"
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depends on IIS2DH_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 IIS2DH_THREAD_STACK_SIZE
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int "Thread stack size"
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depends on IIS2DH_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 # IIS2DH_TRIGGER
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config IIS2DH_RANGE
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int "Accelerometer Full-scale range setting"
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default 0
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help
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Specify the default accelerometer full-scale range.
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Valid values are:
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0: Full Scale selected at runtime
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2: +/- 2g
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4: +/- 4g
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8: +/- 8g
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16: +/- 16g
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config IIS2DH_ODR
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int "Accelerometer sampling frequency (ODR)"
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range 0 9
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default 0
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help
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Specify the default accelerometer output data rate expressed in
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samples per second (Hz).
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0: ODR selected at runtime
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1: 1 Hz
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2: 10 Hz
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3: 25 Hz
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4: 50 Hz
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5: 100 Hz
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6: 200 Hz
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7: 400 Hz
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8: 1620 Hz (only LP)
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9: Depends by mode. LP: 5376 Hz - NORM or HR: 1344 Hz
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config IIS2DH_POWER_MODE
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int "Sensor Power Modes"
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range 0 2
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default 0
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help
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Specify the sensor power mode
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0: High Resolution mode
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1: Normal mode
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2: Low Power mode
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endif # IIS2DH
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