config MTK_SUBPMIC_MISC tristate "Mediatek Subpmic Miscellaneous" help Enable to support Mediatek subpmic miscellaneous functions. For example, customized debugfs for different chips. Other platform dependent operations, e.g., communication between modem and AP. config MTK_SUBPMIC_DEBUGFS tristate "Mediatek Subpmic Debugfs" depends on DEBUG_FS help Enable to support Mediatek Submic Debugfs Say Y here to create debugfs node in /d/ext_dev_io/ folder Say N here to disable config SUBPMIC_DBG tristate "Mediatek subpmic Debug core" depends on MTK_SUBPMIC_MISC help Say Y here to enable Mediatek subpmic debug support. Say N here to disable. Provide Read/Write interface by debugfs ext_dev_io. Also support multiple size condition.