91 	struct pwrseq_unit *unit;  in pwrseq_unit_new()  local
93 	unit = kzalloc(sizeof(*unit), GFP_KERNEL);  in pwrseq_unit_new()
94 	if (!unit)  in pwrseq_unit_new()
97 	unit->name = kstrdup_const(data->name, GFP_KERNEL);  in pwrseq_unit_new()
98 	if (!unit->name) {  in pwrseq_unit_new()
99 		kfree(unit);  in pwrseq_unit_new()
103 	kref_init(&unit->ref);  in pwrseq_unit_new()
104 	INIT_LIST_HEAD(&unit->deps);  in pwrseq_unit_new()
105 	unit->enable = data->enable;  in pwrseq_unit_new()
106 	unit->disable = data->disable;  in pwrseq_unit_new()
108 	return unit;  in pwrseq_unit_new()
111 static struct pwrseq_unit *pwrseq_unit_get(struct pwrseq_unit *unit)  in pwrseq_unit_get()  argument
113 	kref_get(&unit->ref);  in pwrseq_unit_get()
115 	return unit;  in pwrseq_unit_get()
120 static void pwrseq_unit_put(struct pwrseq_unit *unit)  in pwrseq_unit_put()  argument
122 	kref_put(&unit->ref, pwrseq_unit_release);  in pwrseq_unit_put()
134 	struct pwrseq_unit *unit;  member
137 static struct pwrseq_unit_dep *pwrseq_unit_dep_new(struct pwrseq_unit *unit)  in pwrseq_unit_dep_new()  argument
145 	dep->unit = unit;  in pwrseq_unit_dep_new()
152 	pwrseq_unit_put(ref->unit);  in pwrseq_unit_dep_free()
168 	struct pwrseq_unit *unit = container_of(ref, struct pwrseq_unit, ref);  in pwrseq_unit_release()  local
170 	pwrseq_unit_free_deps(&unit->deps);  in pwrseq_unit_release()
171 	list_del(&unit->list);  in pwrseq_unit_release()
172 	kfree_const(unit->name);  in pwrseq_unit_release()
173 	kfree(unit);  in pwrseq_unit_release()
189 	struct pwrseq_unit *unit;  member
215 	if (!IS_ERR_OR_NULL(target->unit))  in pwrseq_target_free()
216 		pwrseq_unit_put(target->unit);  in pwrseq_target_free()
332 	if (!data->unit)  in pwrseq_check_target_deps()
336 	ret = pwrseq_check_unit_deps(data->unit, &visited_units);  in pwrseq_check_target_deps()
353 	struct pwrseq_unit *unit;  in pwrseq_unit_setup()  local
356 	unit = radix_tree_lookup(processed_units, (unsigned long)data);  in pwrseq_unit_setup()
357 	if (unit)  in pwrseq_unit_setup()
358 		return pwrseq_unit_get(unit);  in pwrseq_unit_setup()
360 	unit = pwrseq_unit_new(data);  in pwrseq_unit_setup()
361 	if (!unit)  in pwrseq_unit_setup()
365 		ret = pwrseq_unit_setup_deps(data->deps, &unit->deps,  in pwrseq_unit_setup()
368 			pwrseq_unit_put(unit);  in pwrseq_unit_setup()
373 	ret = radix_tree_insert(processed_units, (unsigned long)data, unit);  in pwrseq_unit_setup()
375 		pwrseq_unit_put(unit);  in pwrseq_unit_setup()
379 	list_add_tail(&unit->list, unit_list);  in pwrseq_unit_setup()
381 	return unit;  in pwrseq_unit_setup()
391 	struct pwrseq_unit *unit;  in pwrseq_unit_setup_deps()  local
397 		unit = pwrseq_unit_setup(pos, unit_list, processed_units);  in pwrseq_unit_setup_deps()
398 		if (IS_ERR(unit))  in pwrseq_unit_setup_deps()
399 			return PTR_ERR(unit);  in pwrseq_unit_setup_deps()
401 		dep = pwrseq_unit_dep_new(unit);  in pwrseq_unit_setup_deps()
403 			pwrseq_unit_put(unit);  in pwrseq_unit_setup_deps()
432 		target->unit = pwrseq_unit_setup(pos->unit, &pwrseq->units,  in pwrseq_do_setup_targets()
434 		if (IS_ERR(target->unit)) {  in pwrseq_do_setup_targets()
435 			ret = PTR_ERR(target->unit);  in pwrseq_do_setup_targets()
550 			WARN(target->unit->enable_count,  in pwrseq_device_unregister()
764 		ret = pwrseq_unit_enable(pwrseq, pos->unit);  in pwrseq_unit_enable_deps()
767 				pwrseq_unit_disable(pwrseq, pos->unit);  in pwrseq_unit_enable_deps()
782 		ret = pwrseq_unit_disable(pwrseq, pos->unit);  in pwrseq_unit_disable_deps()
785 				pwrseq_unit_enable(pwrseq, pos->unit);  in pwrseq_unit_disable_deps()
794 			      struct pwrseq_unit *unit)  in pwrseq_unit_enable()  argument
801 	if (unit->enable_count != 0) {  in pwrseq_unit_enable()
802 		unit->enable_count++;  in pwrseq_unit_enable()
806 	ret = pwrseq_unit_enable_deps(pwrseq, &unit->deps);  in pwrseq_unit_enable()
810 			unit->name, ret);  in pwrseq_unit_enable()
814 	if (unit->enable) {  in pwrseq_unit_enable()
815 		ret = unit->enable(pwrseq);  in pwrseq_unit_enable()
819 				unit->name, ret);  in pwrseq_unit_enable()
820 			pwrseq_unit_disable_deps(pwrseq, &unit->deps);  in pwrseq_unit_enable()
825 	unit->enable_count++;  in pwrseq_unit_enable()
831 			       struct pwrseq_unit *unit)  in pwrseq_unit_disable()  argument
838 	if (unit->enable_count == 0) {  in pwrseq_unit_disable()
840 		     unit->name);  in pwrseq_unit_disable()
844 	if (unit->enable_count != 1) {  in pwrseq_unit_disable()
845 		unit->enable_count--;  in pwrseq_unit_disable()
849 	if (unit->disable) {  in pwrseq_unit_disable()
850 		ret = unit->disable(pwrseq);  in pwrseq_unit_disable()
854 				unit->name, ret);  in pwrseq_unit_disable()
859 	ret = pwrseq_unit_disable_deps(pwrseq, &unit->deps);  in pwrseq_unit_disable()
863 			unit->name, ret);  in pwrseq_unit_disable()
864 		if (unit->enable)  in pwrseq_unit_disable()
865 			unit->enable(pwrseq);  in pwrseq_unit_disable()
869 	unit->enable_count--;  in pwrseq_unit_disable()
892 	struct pwrseq_unit *unit;  in pwrseq_power_on()  local
902 	unit = target->unit;  in pwrseq_power_on()
909 		ret = pwrseq_unit_enable(pwrseq, unit);  in pwrseq_power_on()
917 			pwrseq_unit_disable(pwrseq, unit);  in pwrseq_power_on()
942 	struct pwrseq_unit *unit;  in pwrseq_power_off()  local
951 	unit = desc->target->unit;  in pwrseq_power_off()
959 	ret = pwrseq_unit_disable(pwrseq, unit);  in pwrseq_power_off()
1019 		   target->name, target->unit->name);  in pwrseq_debugfs_seq_show_target()
1023 					 struct pwrseq_unit *unit)  in pwrseq_debugfs_seq_show_unit()  argument
1028 		   unit->name, unit->enable_count);  in pwrseq_debugfs_seq_show_unit()
1030 	if (list_empty(&unit->deps))  in pwrseq_debugfs_seq_show_unit()
1034 	list_for_each_entry(ref, &unit->deps, list)  in pwrseq_debugfs_seq_show_unit()
1035 		seq_printf(seq, "        [%s]\n", ref->unit->name);  in pwrseq_debugfs_seq_show_unit()
1043 	struct pwrseq_unit *unit;  in pwrseq_debugfs_seq_show()  local
1052 	list_for_each_entry(unit, &pwrseq->units, list)  in pwrseq_debugfs_seq_show()
1053 		pwrseq_debugfs_seq_show_unit(seq, unit);  in pwrseq_debugfs_seq_show()