SM5502 EXTCON support

modulename: extcon-sm5502.ko

configname: CONFIG_EXTCON_SM5502

Linux Kernel Configuration
└─>Device Drivers
└─>External Connector Class (extcon) support
└─>SM5502 EXTCON support
In linux kernel since version 3.10 (release Date: 2013-06-30)  
If you say yes here you get support for the MUIC device of
Silicon Mitus SM5502. The SM5502 is a USB port accessory
detector and switch.

source code:
selects
CONFIG_IRQ_DOMAIN
CONFIG_REGMAP_I2C
CONFIG_REGMAP_IRQ