285 	 * Also note that link->performance_state (subdomain's performance state  in _genpd_reeval_performance_state()
288 	 * of the devices/sub-domains of the subdomain) and so can have a  in _genpd_reeval_performance_state()
688 	 * (2) When the domain has a subdomain being powered on.  in genpd_power_off()
861  * genpd_power_off_work_fn - Power off PM domain whose subdomain count is 0.
1844 			       struct generic_pm_domain *subdomain)  in genpd_add_subdomain()  argument
1849 	if (IS_ERR_OR_NULL(genpd) || IS_ERR_OR_NULL(subdomain)  in genpd_add_subdomain()
1850 	    || genpd == subdomain)  in genpd_add_subdomain()
1855 	 * context, ensure that the subdomain can also be  in genpd_add_subdomain()
1858 	if (!genpd_is_irq_safe(genpd) && genpd_is_irq_safe(subdomain)) {  in genpd_add_subdomain()
1859 		WARN(1, "Parent %s of subdomain %s must be IRQ safe\n",  in genpd_add_subdomain()
1860 				genpd->name, subdomain->name);  in genpd_add_subdomain()
1868 	genpd_lock(subdomain);  in genpd_add_subdomain()
1871 	if (!genpd_status_on(genpd) && genpd_status_on(subdomain)) {  in genpd_add_subdomain()
1877 		if (itr->child == subdomain && itr->parent == genpd) {  in genpd_add_subdomain()
1885 	link->child = subdomain;  in genpd_add_subdomain()
1886 	list_add_tail(&link->child_node, &subdomain->child_links);  in genpd_add_subdomain()
1887 	if (genpd_status_on(subdomain))  in genpd_add_subdomain()
1892 	genpd_unlock(subdomain);  in genpd_add_subdomain()
1899  * pm_genpd_add_subdomain - Add a subdomain to an I/O PM domain.
1900  * @genpd: Leader PM domain to add the subdomain to.
1901  * @subdomain: Subdomain to be added.
1904 			   struct generic_pm_domain *subdomain)  in pm_genpd_add_subdomain()  argument
1909 	ret = genpd_add_subdomain(genpd, subdomain);  in pm_genpd_add_subdomain()
1917  * pm_genpd_remove_subdomain - Remove a subdomain from an I/O PM domain.
1918  * @genpd: Leader PM domain to remove the subdomain from.
1919  * @subdomain: Subdomain to be removed.
1922 			      struct generic_pm_domain *subdomain)  in pm_genpd_remove_subdomain()  argument
1927 	if (IS_ERR_OR_NULL(genpd) || IS_ERR_OR_NULL(subdomain))  in pm_genpd_remove_subdomain()
1930 	genpd_lock(subdomain);  in pm_genpd_remove_subdomain()
1933 	if (!list_empty(&subdomain->parent_links) || subdomain->device_count) {  in pm_genpd_remove_subdomain()
1934 		pr_warn("%s: unable to remove subdomain %s\n",  in pm_genpd_remove_subdomain()
1935 			genpd->name, subdomain->name);  in pm_genpd_remove_subdomain()
1941 		if (link->child != subdomain)  in pm_genpd_remove_subdomain()
1947 		if (genpd_status_on(subdomain))  in pm_genpd_remove_subdomain()
1956 	genpd_unlock(subdomain);  in pm_genpd_remove_subdomain()
2162  *  - Removes the PM domain as a subdomain to any parent domains,
2547  * of_genpd_add_subdomain - Add a subdomain to an I/O PM domain.
2549  * @subdomain_spec: OF phandle args to use for subdomain look-up
2551  * Looks-up a parent PM domain and subdomain based upon phandle args
2552  * provided and adds the subdomain to the parent PM domain. Returns a
2558 	struct generic_pm_domain *parent, *subdomain;  in of_genpd_add_subdomain()  local
2569 	subdomain = genpd_get_from_provider(subdomain_spec);  in of_genpd_add_subdomain()
2570 	if (IS_ERR(subdomain)) {  in of_genpd_add_subdomain()
2571 		ret = PTR_ERR(subdomain);  in of_genpd_add_subdomain()
2575 	ret = genpd_add_subdomain(parent, subdomain);  in of_genpd_add_subdomain()
2585  * of_genpd_remove_subdomain - Remove a subdomain from an I/O PM domain.
2587  * @subdomain_spec: OF phandle args to use for subdomain look-up
2589  * Looks-up a parent PM domain and subdomain based upon phandle args
2590  * provided and removes the subdomain from the parent PM domain. Returns a
2596 	struct generic_pm_domain *parent, *subdomain;  in of_genpd_remove_subdomain()  local
2607 	subdomain = genpd_get_from_provider(subdomain_spec);  in of_genpd_remove_subdomain()
2608 	if (IS_ERR(subdomain)) {  in of_genpd_remove_subdomain()
2609 		ret = PTR_ERR(subdomain);  in of_genpd_remove_subdomain()
2613 	ret = pm_genpd_remove_subdomain(parent, subdomain);  in of_genpd_remove_subdomain()