NVIDIA Tegra234 SoC

modulename: tegra234-cbb.ko

and/or

tegra186-emc.ko

configname: CONFIG_ARCH_TEGRA_234_SOC

Linux Kernel Configuration
└─>Device Drivers
└─>SOC (System On Chip) specific Drivers
└─>NVIDIA Tegra234 SoC
In linux kernel since version 5.1 (release Date: 2019-05-05)  
Enable support for the NVIDIA Tegra234 SoC.

source code:
drivers/soc/tegra/cbb/tegra234-cbb.c