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The Linux kernel configuration item CONFIG_MFD_AAT2870_CORE has multiple definitions:
drivers/mfd/KconfigThe configuration item CONFIG_MFD_AAT2870_CORE:
( CONFIG_I2C = CONFIG_y ) && ( CONFIG_GPIOLIB || CONFIG_COMPILE_TEST ) && ( CONFIG_GPIOLIB_LEGACY )If you say yes here you get support for the AAT2870. This driver provides common support for accessing the device, additional drivers must be enabled in order to use the functionality of the device.
drivers/mfd/KconfigThe configuration item CONFIG_MFD_AAT2870_CORE:
CONFIG_I2C = CONFIG_y && CONFIG_GPIOLIB && CONFIG_GENERIC_HARDIRQSIf you say yes here you get support for the AAT2870. This driver provides common support for accessing the device, additional drivers must be enabled in order to use the functionality of the device.
Raw data from LKDDb:
lkddb i2c "aat2870" : CONFIG_MFD_AAT2870_CORE : drivers/mfd/aat2870-core.c # in 3.1–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.17, 6.18-rc+HEADThis page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).
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Automatically generated (in year 2025). See also LKDDb sources on GitLab