clk_prepare(9)

✨ clk_prepare(9) ✨

okay so bestie, welcome to the Kernel API Manual — this one's about clk_prepare(9), and it's honestly not that deep, which is exactly why we love her 💅

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🌸 NAME 🌸

clk_prepare — prepare a clock source. that's it. that's the whole vibe.

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🎀 SYNOPSIS 🎀

int clk_prepare (struct clk *clk );

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💖 ARGUMENTS 💖

• clk — the clock source. the main character of this whole operation 🫶

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🦋 DESCRIPTION 🦋

so like — this function prepares the clock source for use. it's the getting-ready-for-the-party step, not the party itself. ✨

🚨 the one rule, no cap: Must not be called from within atomic context. do not do this. it's literally begging you. 😭

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💜 SEE ALSO 💜

if you're nosy like me (iykyk), go peek at the kernel file ./include/linux/clk.h, plus all these icons 👑:

clk notifier callback types(9), struct clk_notifier(9), struct clk_notifier_data(9), struct clk_bulk_data(9), clk_notifier_register(9), clk_notifier_unregister(9), devm_clk_notifier_register(9), clk_get_accuracy(9), clk_set_phase(9), clk_get_phase(9), clk_set_duty_cycle(9), clk_get_scaled_duty_cycle(9), clk_is_match(9), clk_rate_exclusive_get(9), devm_clk_rate_exclusive_get(9), clk_rate_exclusive_put(9), clk_save_context(9), clk_restore_context(9), clk_unprepare(9), clk_is_enabled_when_prepared(9), clk_get(9), clk_bulk_get(9), clk_bulk_get_all(9), clk_bulk_get_optional(9), devm_clk_bulk_get(9), devm_clk_bulk_get_optional(9), devm_clk_bulk_get_enable(9), devm_clk_bulk_get_optional_enable(9), devm_clk_bulk_get_all(9), devm_clk_bulk_get_all_enabled(9), devm_clk_get(9), devm_clk_get_prepared(9), devm_clk_get_enabled(9), devm_clk_get_optional(9), devm_clk_get_optional_prepared(9), devm_clk_get_optional_enabled(9), devm_clk_get_optional_enabled_with_rate(9), devm_get_clk_from_child(9), clk_enable(9), clk_bulk_enable(9), clk_disable(9), clk_bulk_disable(9), clk_get_rate(9), clk_put(9), clk_bulk_put(9), clk_bulk_put_all(9), devm_clk_put(9), clk_round_rate(9), clk_set_rate(9), clk_set_rate_exclusive(9), clk_has_parent(9), clk_set_rate_range(9), clk_set_min_rate(9), clk_set_max_rate(9), clk_set_parent(9), clk_get_parent(9), clk_get_sys(9), clk_drop_range(9), clk_get_optional(9)

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that's the whole page, babe. go forth and prepare your clocks (but not in atomic context, fr fr 🙈).

sign-off time 🎀 this little gem lives in ./include/linux and the version/date stamp says October 2026 — stay iconic, bestie 💜✨