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Dec 3, 2019 · Fundamentals

How to Identify and Control Module Clock Sources in the Exynos4 Linux Kernel

This article explains how embedded Linux on Exynos4 determines which peripheral clocks are enabled or disabled, describes the struct clk representation, shows the registration process in Clock‑exynos4.c, and provides the APIs (clk_get, clk_enable, clk_disable, etc.) for querying and managing module clocks such as the LCD controller.