NVIDIA Tegra DRM

modulename: tegra-drm.ko

configname: CONFIG_DRM_TEGRA

Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)
└─>NVIDIA Tegra DRM
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Choose this option if you have an NVIDIA Tegra SoC.

To compile this driver as a module, choose M here: the module
will be called tegra-drm.

source code:
drivers/gpu/drm//tegra/


is selected by
CONFIG_DRM_TEGRA_FBDEV