pm_clk_init(9)

💅 pm_clk_init(9) — the setup era

okay so real talk, bestie, this is a page from the Kernel API Manual and it's about the glow-up moment before anything even happens. No cap.

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✨ NAME ✨

pm_clk_init — literally initialize a device's list of power management clocks. that's the whole job. she's the opening act. 🎀

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🌸 SYNOPSIS 🌸

void pm_clk_init (struct device *dev );

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🦋 ARGUMENTS 🦋

• dev — the device you're setting up the list of PM clocks for. that's it. that's the whole vibe check 🫶

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⭐ DESCRIPTION ⭐

okay so here's what she does on the inside (iykyk):

• initializes the lock and clock_list members of the device's pm_subsys_data object
• sets the count of clocks that might sleep to 0

and that's the whole function, bestie. she doesn't do the fun stuff — she just makes the list and the lock exist and resets that sleepy-clock counter to zero so everything downstream has somewhere to land. the way that this is genuinely iconic groundwork 💅✨

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👑 SEE ALSO 👑

like, the whole clock_ops squad, fr fr. all of these live in ./drivers/base/power/clock_ops.c:

• pm_clk_list_lock(9)
• pm_clk_list_unlock(9)
• pm_clk_op_lock(9)
• pm_clk_op_unlock(9)
• __pm_clk_enable(9)
• pm_clk_acquire(9)
• pm_clk_add(9)
• pm_clk_add_clk(9)
• of_pm_clk_add_clks(9)
• __pm_clk_remove(9)
• pm_clk_remove_clk(9)
• pm_clk_create(9)
• pm_clk_destroy(9)
• pm_clk_suspend(9)
• pm_clk_resume(9)
• pm_clk_notify(9)
• enable_clock(9)
• disable_clock(9)
• pm_clk_notify(9) — yes, she's listed twice. she said main character energy twice. we respect it 💀👑
• pm_clk_add_notifier(9)

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🍓 little reminder: every one of those is a manual page section 9 reference, so pop them open with your man reader of choice before you start guessing at behaviour. no invented lore on my watch 🙈

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okay that's the whole page, and before you go — shoutout to the source path ./drivers/base/power and the October 2026 date stamp. that's the origin story right there. periodt. 🌈💖🧚‍♀️