17 	s32 constraint_ns = -1;  in dev_update_qos_constraint()  local
20 		constraint_ns = dev_gpd_data(dev)->td.effective_constraint_ns;  in dev_update_qos_constraint()
22 	if (constraint_ns < 0) {  in dev_update_qos_constraint()
23 		constraint_ns = dev_pm_qos_read_value(dev);  in dev_update_qos_constraint()
24 		constraint_ns *= NSEC_PER_USEC;  in dev_update_qos_constraint()
26 	if (constraint_ns == 0)  in dev_update_qos_constraint()
33 	if (constraint_ns < *constraint_ns_p || *constraint_ns_p == 0)  in dev_update_qos_constraint()
34 		*constraint_ns_p = constraint_ns;  in dev_update_qos_constraint()
47 	s64 constraint_ns;  in default_stop_ok()  local
62 	constraint_ns = __dev_pm_qos_read_value(dev);  in default_stop_ok()
66 	if (constraint_ns < 0)  in default_stop_ok()
69 	constraint_ns *= NSEC_PER_USEC;  in default_stop_ok()
76 		device_for_each_child(dev, &constraint_ns,  in default_stop_ok()
79 	if (constraint_ns > 0) {  in default_stop_ok()
80 		constraint_ns -= td->start_latency_ns;  in default_stop_ok()
81 		if (constraint_ns == 0)  in default_stop_ok()
84 	td->effective_constraint_ns = constraint_ns;  in default_stop_ok()
85 	td->cached_stop_ok = constraint_ns > td->stop_latency_ns ||  in default_stop_ok()
86 				constraint_ns == 0;  in default_stop_ok()
172 		s64 constraint_ns;  in default_power_down_ok()  local
183 		constraint_ns = td->effective_constraint_ns;  in default_power_down_ok()
185 		if (constraint_ns < 0) {  in default_power_down_ok()
186 			constraint_ns = dev_pm_qos_read_value(pdd->dev);  in default_power_down_ok()
187 			constraint_ns *= NSEC_PER_USEC;  in default_power_down_ok()
189 		if (constraint_ns == 0)  in default_power_down_ok()
196 		constraint_ns -= td->restore_state_latency_ns;  in default_power_down_ok()
197 		if (constraint_ns <= off_on_time_ns)  in default_power_down_ok()
200 		if (min_off_time_ns > constraint_ns || min_off_time_ns < 0)  in default_power_down_ok()
201 			min_off_time_ns = constraint_ns;  in default_power_down_ok()