pm_clk_list_lock(9)

🎀 pm_clk_list_lock(9) — Kernel API Manual 🎀

okay so bestie, welcome to the Kernel API Manual page for pm_clk_list_lock(9) — this one is short, iconic, and all about locking before you touch the PM clock entry list. 💅

✨ NAME ✨

pm_clk_list_lock — ensure exclusive access for modifying the PM clock entry list. That's literally the assignment, no cap. 🫶

🌸 SYNOPSIS 🌸

void pm_clk_list_lock (struct pm_subsys_data *psd );

🦋 ARGUMENTS 🦋

• psd — the pm_subsys_data instance corresponding to the PM clock entry list and the clk_op_might_sleep count that's about to be modified. This is your main-character argument, bestie. ✨

💖 DESCRIPTION 💖

Okay so the vibe here: get exclusive access before you modify the PM clock entry list and the clock_op_might_sleep count, because we're guarding against concurrent modifications. No chaotic edits allowed, periodt. 🔥

This also protects against a concurrent clock_op_might_sleep and PM clock entry list usage in pm_clk_suspend/pm_clk_resume that may or may not happen in atomic context. That's why both the mutex and the spinlock must be taken here — yes, both, bestie. 💅

🌈 SEE ALSO 🌈

Kernel file ./drivers/base/power/clock_ops.c is the source-file bestie, and the whole squad is: 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_init(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), pm_clk_add_notifier(9).

mwah 💋 — this page ships from ./drivers/base/power, is dated October 2026, and belongs to pm_clk_list_lock(9) 🫶