default or selected kernelversion does not have config value CONFIG_DISPLAY_PANEL_DPI.
Result is shown for kernelversion 6.5.1

Generic DPI panel

modulename: panel-dpi.ko

configname: CONFIG_DISPLAY_PANEL_DPI

Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>OMAP2+ Display Subsystem support
└─>OMAP Display Device Drivers (new device model)
└─>Generic DPI panel
In linux kernel since version 3.11 (release Date: 2013-09-02)  
Driver for generic DPI panels.

source code: