devm_clk_get_enabled(9)

💖 devm_clk_get_enabled(9) 💖

okay so bestie, welcome to the devm_clk_get_enabled(9) page — straight out of the Kernel API Manual, and honestly? it's giving "little function that could." it's a two-for-one deal and we're obsessed. ✨

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🌸 NAME 🌸

devm_clk_get_enabled — literally just devm_clk_get() + clk_prepare_enable(). that's it, that's the whole vibe. no cap. 🫶

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🦋 SYNOPSIS 🦋

struct clk * devm_clk_get_enabled (struct device *dev , const char *id );

like, look at it. she's beautiful. she takes two args and returns a clock pointer. periodt. 💅

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🎀 ARGUMENTS 🎀

• dev — the device that's gonna be the clock "consumer". it's the main character here, fr fr. 👑
• id — the clock consumer ID. yes, that's the literal name of the parameter. iconic. ⭐

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⭐ CONTEXT ⭐

May sleep. 😴 that's the whole section. nap-friendly function, so don't go calling her from an atomic context, mkay? (that part's iykyk, the manpage just says May sleep and we respect that.) 🙈

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🔥 RETURN 🔥

you get back a struct clk corresponding to the clock producer — or a valid IS_ERR condition containing errno. so like, always check her, bestie, don't just rawdog that pointer. 💀

the implementation uses dev and id to determine the clock consumer, and thereby the clock producer. and here's the cute little trap: (IOW, id may be identical strings, but clk_get may return different clock producers depending on dev.) so don't go thinking same name = same clock, because it does NOT mean that, ngl. 🌈

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💜 DESCRIPTION 💜

so the returned clk, if valid, is prepared and enabled. yes. both. she does both. multi-tasking queen. 👑

and here's the part where devm really pops off: the clock will automatically be disabled, unprepared and freed when the device is unbound from the bus. like she cleans up after herself?? no notes. absolute icon. 🧚

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💫 SEE ALSO 💫

buckle up bestie, this list is LONG and we are NOT skipping a single one of them. the kernel file is ./include/linux/clk.h, and here's the whole friend group:

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_prepare(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_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)

whew. every single one of them, present and accounted for. 💅✨

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ok and finally the cute sign-off: this page lives under ./include/linux, and it's dated October 2026 — so go forth, grab your clocks, enable them, and let devm handle the cleanup. slay. 🎀🦋💖