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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-03-20 17:20:33 +0000 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-03-22 22:19:12 +0100 |
| commit | 446d999c1c92cec996e759dc3c03110596e626f5 (patch) | |
| tree | 08b831e2ec37158d29fd037f7aaa61001c180425 /include/linux/pm_domain.h | |
| parent | 6d7d5c3266aa946b2049d9fed02186c1a378621b (diff) | |
| download | linux-stable-446d999c1c92cec996e759dc3c03110596e626f5.tar.gz linux-stable-446d999c1c92cec996e759dc3c03110596e626f5.tar.bz2 linux-stable-446d999c1c92cec996e759dc3c03110596e626f5.zip | |
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.h | 6 |
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, |