pm_suspend_timer_fn(9)

💖 pm_suspend_timer_fn(9): the bestie briefing 💖

Okay so this page is pm_suspend_timer_fn(9) from the Kernel API Manual, and it’s giving tiny-but-iconic kernel timer callback. Lowkey crucial if you’re poking at runtime PM, no cap.

🌸 NAME 🌸

pm_suspend_timer_fn — timer function for pm_schedule_suspend(). That’s the whole name vibe, bestie.

✨ SYNOPSIS ✨

The signature, served fresh and exactly as written:

enum hrtimer_restart  pm_suspend_timer_fn (struct hrtimer *timer );

🎀 ARGUMENTS 🎀

• timer — the hrtimer used by pm_schedule_suspend. That’s it; she’s the timer in question, periodt.

🦋 DESCRIPTION 🦋

The whole job in one sentence, fr fr: check if the time is right and queue a suspend request. That’s the moment ✨

🔥 SEE ALSO 🔥

Kernel file ./drivers/base/power/runtime.c is the spot to peek at, and here’s the whole friend group — every single reference, no cap, no skips:

• Kernel file ./drivers/base/power/runtime.c
• update_pm_runtime_accounting(9)
• pm_runtime_deactivate_timer(9)
• pm_runtime_cancel_pending(9)
• rpm_check_suspend_allowed(9)
• pm_runtime_release_supplier(9)
• __rpm_callback(9)
• rpm_callback(9)
• rpm_idle(9)
• rpm_suspend(9)
• rpm_resume(9)
• pm_runtime_work(9)
• pm_schedule_suspend(9)
• __pm_runtime_idle(9)
• __pm_runtime_suspend(9)
• __pm_runtime_resume(9)
• pm_runtime_get_conditional(9)
• pm_runtime_get_if_active(9)
• pm_runtime_get_if_in_use(9)
• __pm_runtime_set_status(9)
• __pm_runtime_barrier(9)
• pm_runtime_barrier(9)
• pm_runtime_enable(9)
• devm_pm_runtime_set_active_enabled(9)
• devm_pm_runtime_enable(9)
• devm_pm_runtime_get_noresume(9)
• pm_runtime_forbid(9)
• pm_runtime_allow(9)
• pm_runtime_no_callbacks(9)
• pm_runtime_irq_safe(9)
• update_autosuspend(9)
• pm_runtime_set_autosuspend_delay(9)
• __pm_runtime_use_autosuspend(9)
• pm_runtime_init(9)
• pm_runtime_reinit(9)
• pm_runtime_remove(9)
• pm_runtime_get_suppliers(9)
• pm_runtime_put_suppliers(9)
• pm_runtime_drop_link(9)
• pm_runtime_force_suspend(9)
• pm_runtime_force_resume(9)

Cute little sign-off: this page comes from source/version ./drivers/base/power, dated October 2026 — mwah, take care of her 💋🫶