Found CONFIG_REGMAP_I2C=m after generation, had CONFIG_REGMAP_I2C=y in Source tree Found CONFIG_REGMAP_SPI=m after generation, had CONFIG_REGMAP_SPI=y in Source tree Cannot make then built-in, something forces them to be modules. Signed-off-by: David Abdurachmanov <david.abdurachmanov@sifive.com>