Devicetree support for Ion

modulename: ion_of.ko

configname: CONFIG_ION_OF

Linux Kernel Configuration
└─>Device Drivers
└─>Staging drivers
└─>Android
└─>Ion Memory Manager
└─>Devicetree support for Ion
In linux kernel since version 4.1 (release Date: 2015-06-21)  
Provides base support for defining Ion heaps in devicetree
and setting them up. Also includes functions for platforms
to parse the devicetree and expand for their own custom
extensions

If using Ion and devicetree, you should say Y here

source code: