pm_runtime_force_resume(9)

💖 pm_runtime_force_resume(9) 💖

okay so this is a page from the Kernel API Manual, and bestie, we're about to make a device wake up on purpose. 🫶

---

✨ NAME ✨

pm_runtime_force_resume — literally forces a device into resume state if it needs it, no cap.

---

🌸 SYNOPSIS 🌸

int pm_runtime_force_resume (struct device *dev );

---

🎀 ARGUMENTS 🎀

• dev — the device you're waking up. your main character. 🦋

---

👑 DESCRIPTION 👑

okay so here's the vibe check on what this function expects before you even call it. two acceptable situations, pick one:

• pm_runtime_force_suspend already put the device into a low-power state before you called this, or
• the device was already runtime-suspended before the preceding system-wide suspend transition, and it just stayed in suspend the whole time during that transition. 💤

then the function does its thing: whatever actions pm_runtime_force_suspend carried out — or that a runtime suspend in general carried out — get reversed, and the device is brought back into full power. 🔥

but only if it's expected to be used on system resume, bestie. and that's true when:

• its needs_force_resume flag is set, or
• its smart_suspend flag is set and its runtime PM status is "active".

in other cases? the resume is deferred to be managed via runtime PM instead. lowkey handing it off. 💅

ngl, the typical move here is invoking this function from a system resume callback. that's the moment. ⭐

---

💜 SEE ALSO 💜

• Kernel file ./drivers/base/power/runtime.c — go read the source, it ate 👑

and the whole friend group, fr fr:

• 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_suspend_timer_fn(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)

---

🧚 okay that's the page!! it lives in ./drivers/base/power, it's part of the Kernel API Manual, and it was dated October 2026 — so yeah, timestamped and iconic. periodt. 💅✨🌈