include/linux/pm_domain.h

1 /* SPDX-License-Identifier: GPL-2.0-only */
3  * pm_domain.h - Definitions and headers related to device power domains.
23  * These flags may be set in the struct generic_pm_domain's flags field by a
31  *				->power_on|off(), doesn't sleep. Hence, these
33  *				enables genpd to power on/off the PM domain,
39  * GENPD_FLAG_ALWAYS_ON:	Instructs genpd to always keep the PM domain
42  * GENPD_FLAG_ACTIVE_WAKEUP:	Instructs genpd to keep the PM domain powered
43  *				on, in case any of its attached devices is used
44  *				in the wakeup path to serve system wakeups.
50  *				deploy idle power management support for CPUs
53  *				last-man-standing algorithm, for the CPUs in the
56  * GENPD_FLAG_RPM_ALWAYS_ON:	Instructs genpd to always keep the PM domain
57  *				powered on except for system suspend.
106 	struct list_head gpd_list_node;	/* Node in the global PM domains list */
115 	atomic_t sd_count;	/* Number of subdomains with power "on" */
118 	unsigned int suspended_count;	/* System suspend device counter */
119 	unsigned int prepared_count;	/* Suspend counter of prepared devices */
124 	struct raw_notifier_head power_notifiers; /* Power on/off notifiers */
169 	/* Sub-domain's per-master domain performance state */
205 	return to_gpd_data(dev->power.subsys_data->domain_data);  in dev_gpd_data()
230 	return ERR_PTR(-ENOSYS);  in dev_gpd_data()
235 	return -ENOSYS;  in pm_genpd_add_device()
239 	return -ENOSYS;  in pm_genpd_remove_device()
244 	return -ENOSYS;  in pm_genpd_add_subdomain()
249 	return -ENOSYS;  in pm_genpd_remove_subdomain()
254 	return -ENOSYS;  in pm_genpd_init()
258 	return -ENOTSUPP;  in pm_genpd_remove()
264 	return -ENOTSUPP;  in dev_pm_genpd_set_performance_state()
270 	return -ENOTSUPP;  in dev_pm_genpd_add_notifier()
275 	return -ENOTSUPP;  in dev_pm_genpd_remove_notifier()
328 	return -ENOTSUPP;  in of_genpd_add_provider_simple()
334 	return -ENOTSUPP;  in of_genpd_add_provider_onecell()
342 	return -ENODEV;  in of_genpd_add_device()
348 	return -ENODEV;  in of_genpd_add_subdomain()
354 	return -ENODEV;  in of_genpd_remove_subdomain()
360 	return -ENODEV;  in of_genpd_parse_idle_states()
390 	return ERR_PTR(-ENOTSUPP);  in of_genpd_remove_last()