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PM / Domains: Use power.sybsys_data to reduce overhead

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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>
This commit is contained in:
Rafael J. Wysocki 2011-08-25 15:34:12 +02:00
parent ef27bed187
commit 4605ab653c
5 changed files with 51 additions and 67 deletions
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6
include/linux/pm_domain.h
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@ -61,12 +61,6 @@ struct gpd_link {
struct list_head slave_node;
};
struct dev_list_entry {
struct list_head node;
struct device *dev;
bool need_restore;
};
#ifdef CONFIG_PM_GENERIC_DOMAINS
extern int pm_genpd_add_device(struct generic_pm_domain *genpd,
struct device *dev);