Support for Allwinner Display Engine 2.0 Mixer

modulename: sun8i-mixer.ko

configname: CONFIG_DRM_SUN8I_MIXER

Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>Support for Allwinner Display Engine 2.0 Mixer
In linux kernel since version 4.2 (release Date: 2015-08-30)  
Choose this option if you have an Allwinner SoC with the
Allwinner Display Engine 2.0, which has a mixer to do some
graphics mixture and feed graphics to TCON, If M is
selected the module will be called sun8i-mixer.

source code: