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.
25  * These flags may be set in the struct generic_pm_domain's flags field by a
33  *				->power_on|off(), doesn't sleep. Hence, these
35  *				enables genpd to power on/off the PM domain,
41  * GENPD_FLAG_ALWAYS_ON:	Instructs genpd to always keep the PM domain
44  * GENPD_FLAG_ACTIVE_WAKEUP:	Instructs genpd to keep the PM domain powered
45  *				on, in case any of its attached devices is used
46  *				in the wakeup path to serve system wakeups.
52  *				deploy idle power management support for CPUs
55  *				last-man-standing algorithm, for the CPUs in the
58  * GENPD_FLAG_RPM_ALWAYS_ON:	Instructs genpd to always keep the PM domain
59  *				powered on except for system suspend.
67  *				described in DT, but are given directly by FW.
126 	struct list_head gpd_list_node;	/* Node in the global PM domains list */
136 	atomic_t sd_count;	/* Number of subdomains with power "on" */
139 	unsigned int suspended_count;	/* System suspend device counter */
140 	unsigned int prepared_count;	/* Suspend counter of prepared devices */
146 	struct raw_notifier_head power_notifiers; /* Power on/off notifiers */
185 	/* Sub-domain's per-master domain performance state */
224 	return to_gpd_data(dev->power.subsys_data->domain_data);  in dev_gpd_data()
252 	return ERR_PTR(-ENOSYS);  in dev_gpd_data()
257 	return -ENOSYS;  in pm_genpd_add_device()
261 	return -ENOSYS;  in pm_genpd_remove_device()
266 	return -ENOSYS;  in pm_genpd_add_subdomain()
271 	return -ENOSYS;  in pm_genpd_remove_subdomain()
276 	return -ENOSYS;  in pm_genpd_init()
280 	return -EOPNOTSUPP;  in pm_genpd_remove()
286 	return -EOPNOTSUPP;  in dev_pm_genpd_set_performance_state()
292 	return -EOPNOTSUPP;  in dev_pm_genpd_add_notifier()
297 	return -EOPNOTSUPP;  in dev_pm_genpd_remove_notifier()
358 	return -EOPNOTSUPP;  in of_genpd_add_provider_simple()
364 	return -EOPNOTSUPP;  in of_genpd_add_provider_onecell()
372 	return -ENODEV;  in of_genpd_add_device()
378 	return -ENODEV;  in of_genpd_add_subdomain()
384 	return -ENODEV;  in of_genpd_remove_subdomain()
390 	return -ENODEV;  in of_genpd_parse_idle_states()
413 	return ERR_PTR(-EOPNOTSUPP);  in of_genpd_remove_last()