Samsung Exynos5420 clock controller support

modulename: clk-exynos5420.ko

and/or

clk-exynos5-subcmu.ko

configname: CONFIG_EXYNOS_5420_COMMON_CLK

Linux Kernel Configuration
└─>Device Drivers
└─>Common Clock Framework
└─>Samsung Exynos5420 clock controller support
In linux kernel since version 5.2 (release Date: 2019-07-07)  
Support for the clock controller present on the Samsung
Exynos5420/Exynos5422/Exynos5800 SoCs. Choose Y here only if you
build for this SoC.

source code: