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PM / Domains: Change prototype for the attach and detach callbacks 

Convert the prototypes to return an int in order to support error
handling in these callbacks.

Also, as suggested by Dmitry Torokhov, pass the domain pointer for use
inside the callbacks, and so that they match the existing
power_on/power_off callbacks which currently take the domain pointer.

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
[ khilman: added domain as parameter to callbacks, as suggested by Dmitry ]
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
hifive-unleashed-5.1
Ulf Hansson 2014-11-06 00:37:08 +01:00 committed by Rafael J. Wysocki
parent 0df1f2487d
commit c16561e8df
2 changed files with 6 additions and 4 deletions
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4
drivers/base/power/domain.c
View File

@ -1437,7 +1437,7 @@ int __pm_genpd_add_device(struct generic_pm_domain *genpd, struct device *dev,
spin_unlock_irq(&dev->power.lock);
if (genpd->attach_dev)
genpd->attach_dev(dev);
genpd->attach_dev(genpd, dev);
mutex_lock(&gpd_data->lock);
gpd_data->base.dev = dev;
@ -1499,7 +1499,7 @@ int pm_genpd_remove_device(struct generic_pm_domain *genpd,
genpd->max_off_time_changed = true;
if (genpd->detach_dev)
genpd->detach_dev(dev);
genpd->detach_dev(genpd, dev);
spin_lock_irq(&dev->power.lock);

6
include/linux/pm_domain.h
View File

@ -72,8 +72,10 @@ struct generic_pm_domain {
bool max_off_time_changed;
bool cached_power_down_ok;
struct gpd_cpuidle_data *cpuidle_data;
void (*attach_dev)(struct device *dev);
void (*detach_dev)(struct device *dev);
int (*attach_dev)(struct generic_pm_domain *domain,
struct device *dev);
void (*detach_dev)(struct generic_pm_domain *domain,
struct device *dev);
};
static inline struct generic_pm_domain *pd_to_genpd(struct dev_pm_domain *pd)