dev_pm_genpd_suspend(9)

hiii bestie!! welcome to the Kernel API Manual ✨ today’s main character is dev_pm_genpd_suspend(9), and the vibe check says: synchronous genpd suspend for a device. no cap, she ate. 💅

🌸 NAME 🌸

Synchronously try to suspend the genpd for @dev — that’s the whole assignment, bestie. literally the function’s name doing exactly what it says on the label. 🫶

🦋 SYNOPSIS 🦋

it’s giving very void, very pointer-to-struct device:

void dev_pm_genpd_suspend (struct device *dev );

🎀 ARGUMENTS 🎀

• dev — the device that is attached to the genpd, that can be suspended. that’s the one you’re handing over, bestie 💖

💖 DESCRIPTION 💖

okay so here’s the tea ☕: this routine should typically be called for a device that needs to be suspended during the syscore suspend phase. it may also be called during suspend-to-idle to suspend a corresponding CPU device that is attached to a genpd. that’s the lore, and honestly? iconic. ✨

🌈 SEE ALSO 🌈

like, go look at these too — iykyk 👀:

• Kernel file: ./drivers/pmdomain/core.c
• dev_pm_genpd_set_performance_state(9), dev_pm_genpd_set_next_wakeup(9), dev_pm_genpd_get_next_hrtimer(9), dev_pm_genpd_set_hwmode(9), dev_pm_genpd_get_hwmode(9), dev_pm_genpd_rpm_always_on(9), dev_pm_genpd_is_on(9), pm_genpd_inc_rejected(9)
• genpd_queue_power_off_work(9), genpd_power_off(9), genpd_power_on(9), genpd_power_off_work_fn(9), __genpd_runtime_suspend(9), __genpd_runtime_resume(9), genpd_runtime_suspend(9), genpd_runtime_resume(9)
• genpd_power_off_unused(9), genpd_sync_power_off(9), genpd_sync_power_on(9), genpd_prepare(9), genpd_finish_suspend(9), genpd_suspend_noirq(9), genpd_finish_resume(9), genpd_resume_noirq(9)
• genpd_freeze_noirq(9), genpd_thaw_noirq(9), genpd_poweroff_noirq(9), genpd_restore_noirq(9), genpd_complete(9), dev_pm_genpd_resume(9), pm_genpd_add_device(9), pm_genpd_remove_device(9)
• dev_pm_genpd_add_notifier(9), dev_pm_genpd_remove_notifier(9), pm_genpd_add_subdomain(9), pm_genpd_remove_subdomain(9), pm_genpd_init(9), pm_genpd_remove(9), struct of_genpd_provider(9), genpd_xlate_simple(9)
• genpd_xlate_onecell(9), genpd_add_provider(9), of_genpd_add_provider_simple(9), of_genpd_add_provider_onecell(9), of_genpd_del_provider(9), genpd_get_from_provider(9), of_genpd_add_child_ids(9), of_genpd_remove_child_ids(9)
• of_genpd_add_device(9), of_genpd_add_subdomain(9), of_genpd_remove_subdomain(9), of_genpd_remove_last(9), genpd_dev_pm_detach(9), genpd_dev_pm_attach(9), genpd_dev_pm_attach_by_id(9), genpd_dev_pm_attach_by_name(9)
• of_genpd_parse_idle_states(9), of_genpd_sync_state(9)

okayyyyy that’s the whole page!! source/version vibes: ./drivers/pmdomain · date: October 2026 · page: dev_pm_genpd_suspend(9) — mwah, go suspend something cute 💋🎀