config OLPC_EC select REGULATOR bool menuconfig OLPC_XO175 bool "Platform support for OLPC XO 1.75 hardware" depends on ARCH_MMP || COMPILE_TEST help Say Y here to get to see options for the ARM-based OLPC platform. This option alone does not add any kernel code. Unless you have an OLPC XO laptop, you will want to say N. if OLPC_XO175 config OLPC_XO175_EC tristate "OLPC XO 1.75 Embedded Controller" depends on SPI_SLAVE depends on INPUT depends on POWER_SUPPLY select OLPC_EC help Include support for the OLPC XO Embedded Controller (EC). The EC provides various platform services, including support for the power, button, restart, shutdown and battery charging status. Unless you have an OLPC XO laptop, you will want to say N. endif # OLPC_XO175