Exynos USI (Universal Serial Interface) driver

modulename: exynos-usi.ko

configname: CONFIG_EXYNOS_USI

Linux Kernel Configuration
└─>Device Drivers
└─>SOC (System On Chip) specific Drivers
└─>Samsung SoC driver support
└─>Exynos USI (Universal Serial Interface) driver
In linux kernel since version 5.2 (release Date: 2019-07-07)  
Enable support for USI block. USI (Universal Serial Interface) is an
IP-core found in modern Samsung Exynos SoCs, like Exynos850 and
ExynosAutoV9. USI block can be configured to provide one of the
following serial protocols: UART, SPI or High Speed I2C.

This driver allows one to configure USI for desired protocol, which
is usually done in USI node in Device Tree.

source code:

depends
CONFIG_SOC_SAMSUNG
CONFIG_ARCH_EXYNOS or CONFIG_COMPILE_TEST