Samsung Exynos clock output driver

modulename: clk-exynos-clkout.ko


Linux Kernel Configuration
└─>Device Drivers
└─>Common Clock Framework
└─>Samsung Exynos clock output driver
In linux kernel since version 5.2 (release Date: 2019-07-07)  
Support for the clock output (XCLKOUT) present on some of Exynos SoC
variants. Usually the XCLKOUT is used to monitor the status of the
certains clocks from SoC, but it could also be tied to other devices
as an input clock.

source code: