dev_pm_genpd_add_notifier(9)

dev_pm_genpd_add_notifier(9) 🫶

okay bestie, this one is from the Kernel API Manual, and it’s literally about adding a genpd power on/off notifier for a device. Slay.

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✨ NAME ✨

dev_pm_genpd_add_notifier — Add a genpd power on/off notifier for @dev

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🌸 SYNOPSIS 🌸

int dev_pm_genpd_add_notifier (struct device *dev , struct notifier_block *nb );

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🎀 ARGUMENTS 🎀

• dev — Device that should be associated with the notifier
• nb — The notifier block to register

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💅 DESCRIPTION 💅

Users may call this function to add a genpd power on/off notifier for an attached dev. Only one notifier per device is allowed — no cap, that’s the rule. The notifier is sent when genpd is powering on/off the PM domain. ✨

Heads up, bestie: it is assumed that the user guarantee that the genpd wouldn’t be detached while this routine is getting called. That’s the vibe check 😭

Returns 0 on success and negative error values on failures.

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🦋 SEE ALSO 🦋

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_suspend(9)
• dev_pm_genpd_resume(9)
• pm_genpd_add_device(9)
• pm_genpd_remove_device(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)

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💖 byeee bestie! This page lives in the Kernel API Manual, source/version is ./drivers/pmdomain, dated October 2026, and yes the title stays dev_pm_genpd_add_notifier(9). Periodt. 🌈