PM / Domains: Use power.sybsys_data to reduce overhead
Currently pm_genpd_runtime_resume() has to walk the list of devices
from the device's PM domain to find the corresponding device list
object containing the need_restore field to check if the driver's
.runtime_resume() callback should be executed for the device.
This is suboptimal and can be simplified by using power.sybsys_data
to store device information used by the generic PM domains code.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
diff --git a/include/linux/pm.h b/include/linux/pm.h
index c6b5a0a..ed10f24 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -421,12 +421,21 @@
struct wakeup_source;
+struct pm_domain_data {
+ struct list_head list_node;
+ struct device *dev;
+ bool need_restore;
+};
+
struct pm_subsys_data {
spinlock_t lock;
unsigned int refcount;
#ifdef CONFIG_PM_CLK
struct list_head clock_list;
#endif
+#ifdef CONFIG_PM_GENERIC_DOMAINS
+ struct pm_domain_data domain_data;
+#endif
};
struct dev_pm_info {