268 	 * Also note that link->performance_state (subdomain's performance state  in _genpd_reeval_performance_state()
271 	 * of the devices/sub-domains of the subdomain) and so can have a  in _genpd_reeval_performance_state()
551 	 * (2) When the domain has a subdomain being powered on.  in genpd_power_off()
716  * genpd_power_off_work_fn - Power off PM domain whose subdomain count is 0.
1733 			       struct generic_pm_domain *subdomain)  in genpd_add_subdomain()  argument
1738 	if (IS_ERR_OR_NULL(genpd) || IS_ERR_OR_NULL(subdomain)  in genpd_add_subdomain()
1739 	    || genpd == subdomain)  in genpd_add_subdomain()
1744 	 * context, ensure that the subdomain can also be  in genpd_add_subdomain()
1747 	if (!genpd_is_irq_safe(genpd) && genpd_is_irq_safe(subdomain)) {  in genpd_add_subdomain()
1748 		WARN(1, "Parent %s of subdomain %s must be IRQ safe\n",  in genpd_add_subdomain()
1749 				genpd->name, subdomain->name);  in genpd_add_subdomain()
1757 	genpd_lock(subdomain);  in genpd_add_subdomain()
1760 	if (!genpd_status_on(genpd) && genpd_status_on(subdomain)) {  in genpd_add_subdomain()
1766 		if (itr->child == subdomain && itr->parent == genpd) {  in genpd_add_subdomain()
1774 	link->child = subdomain;  in genpd_add_subdomain()
1775 	list_add_tail(&link->child_node, &subdomain->child_links);  in genpd_add_subdomain()
1776 	if (genpd_status_on(subdomain))  in genpd_add_subdomain()
1781 	genpd_unlock(subdomain);  in genpd_add_subdomain()
1788  * pm_genpd_add_subdomain - Add a subdomain to an I/O PM domain.
1789  * @genpd: Leader PM domain to add the subdomain to.
1790  * @subdomain: Subdomain to be added.
1793 			   struct generic_pm_domain *subdomain)  in pm_genpd_add_subdomain()  argument
1798 	ret = genpd_add_subdomain(genpd, subdomain);  in pm_genpd_add_subdomain()
1806  * pm_genpd_remove_subdomain - Remove a subdomain from an I/O PM domain.
1807  * @genpd: Leader PM domain to remove the subdomain from.
1808  * @subdomain: Subdomain to be removed.
1811 			      struct generic_pm_domain *subdomain)  in pm_genpd_remove_subdomain()  argument
1816 	if (IS_ERR_OR_NULL(genpd) || IS_ERR_OR_NULL(subdomain))  in pm_genpd_remove_subdomain()
1819 	genpd_lock(subdomain);  in pm_genpd_remove_subdomain()
1822 	if (!list_empty(&subdomain->parent_links) || subdomain->device_count) {  in pm_genpd_remove_subdomain()
1823 		pr_warn("%s: unable to remove subdomain %s\n",  in pm_genpd_remove_subdomain()
1824 			genpd->name, subdomain->name);  in pm_genpd_remove_subdomain()
1830 		if (link->child != subdomain)  in pm_genpd_remove_subdomain()
1836 		if (genpd_status_on(subdomain))  in pm_genpd_remove_subdomain()
1845 	genpd_unlock(subdomain);  in pm_genpd_remove_subdomain()
2008  *  - Removes the PM domain as a subdomain to any parent domains,
2397  * of_genpd_add_subdomain - Add a subdomain to an I/O PM domain.
2399  * @subdomain_spec: OF phandle args to use for subdomain look-up
2401  * Looks-up a parent PM domain and subdomain based upon phandle args
2402  * provided and adds the subdomain to the parent PM domain. Returns a
2408 	struct generic_pm_domain *parent, *subdomain;  in of_genpd_add_subdomain()  local
2419 	subdomain = genpd_get_from_provider(subdomain_spec);  in of_genpd_add_subdomain()
2420 	if (IS_ERR(subdomain)) {  in of_genpd_add_subdomain()
2421 		ret = PTR_ERR(subdomain);  in of_genpd_add_subdomain()
2425 	ret = genpd_add_subdomain(parent, subdomain);  in of_genpd_add_subdomain()
2435  * of_genpd_remove_subdomain - Remove a subdomain from an I/O PM domain.
2437  * @subdomain_spec: OF phandle args to use for subdomain look-up
2439  * Looks-up a parent PM domain and subdomain based upon phandle args
2440  * provided and removes the subdomain from the parent PM domain. Returns a
2446 	struct generic_pm_domain *parent, *subdomain;  in of_genpd_remove_subdomain()  local
2457 	subdomain = genpd_get_from_provider(subdomain_spec);  in of_genpd_remove_subdomain()
2458 	if (IS_ERR(subdomain)) {  in of_genpd_remove_subdomain()
2459 		ret = PTR_ERR(subdomain);  in of_genpd_remove_subdomain()
2463 	ret = pm_genpd_remove_subdomain(parent, subdomain);  in of_genpd_remove_subdomain()