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authorRussell King <rmk+kernel@arm.linux.org.uk>2015-03-20 20:20:33 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-03-23 00:19:12 +0300
commit446d999c1c92cec996e759dc3c03110596e626f5 (patch)
tree08b831e2ec37158d29fd037f7aaa61001c180425 /include/linux/pm_domain.h
parent6d7d5c3266aa946b2049d9fed02186c1a378621b (diff)
downloadlinux-446d999c1c92cec996e759dc3c03110596e626f5.tar.xz
PM / domains: factor out code to get the generic PM domain from a struct device
The PM domain code contains two methods to get the generic PM domain for a struct device. One is dev_to_genpd() which is only safe when we know for certain that the device has a generic PM domain attached. The other is coded into genpd_dev_pm_detach() which ensures that the PM domain in the struct device is a generic PM domain (and so is safer). This commit factors out the safer version, documents it, and hides the unsafe dev_to_genpd(). Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/linux/pm_domain.h')
-rw-r--r--include/linux/pm_domain.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 080e778118ba..681ccb053f72 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -127,7 +127,7 @@ static inline struct generic_pm_domain_data *dev_gpd_data(struct device *dev)
return to_gpd_data(dev->power.subsys_data->domain_data);
}
-extern struct generic_pm_domain *dev_to_genpd(struct device *dev);
+extern struct generic_pm_domain *pm_genpd_lookup_dev(struct device *dev);
extern int __pm_genpd_add_device(struct generic_pm_domain *genpd,
struct device *dev,
struct gpd_timing_data *td);
@@ -163,9 +163,9 @@ static inline struct generic_pm_domain_data *dev_gpd_data(struct device *dev)
{
return ERR_PTR(-ENOSYS);
}
-static inline struct generic_pm_domain *dev_to_genpd(struct device *dev)
+static inline struct generic_pm_domain *pm_genpd_lookup_dev(struct device *dev)
{
- return ERR_PTR(-ENOSYS);
+ return NULL;
}
static inline int __pm_genpd_add_device(struct generic_pm_domain *genpd,
struct device *dev,