config DRIVERS_I2C_SX9324 bool default n depends on HAVE_ACPI_TABLES help Board has a Semtech SX9324 proximity sensor. config DRIVERS_I2C_SX9324_SUPPORT_LEGACY_LINUX_DRIVER bool default n depends on DRIVERS_I2C_SX9324 help Board may use the legacy sx932x linux driver. This option is mainly to ease migrating from the legacy driver to the Linux one and should be deleted once all variants finish migration. This driver never reached upstream Linux and is only available in ChromeOS kernel fork of 4.4 and 5.4. Linux later accepted a different implementation named SX9324 and has been available since 5.4. Ideally all variants should adopt the new driver; however, during the transition phase, coreboot must support both drivers. By selecting this option, coreboot's SX9324 driver will specify all properties to work with both Linux kernel drivers.