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PM: domains: Split code in dev_pm_genpd_set_performance_state()

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To prepare some of the code in dev_pm_genpd_set_performance_state() to be
re-used from subsequent changes, let's split it up into two functions.

Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Ulf Hansson 2021-06-03 11:34:35 +02:00 committed by Rafael J. Wysocki
parent 763663c971
commit 0eef091d2d
1 changed files with 19 additions and 12 deletions
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31
drivers/base/power/domain.c
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@ -379,6 +379,24 @@ err:
return ret;
}
static int genpd_set_performance_state(struct device *dev, unsigned int state)
{
struct generic_pm_domain *genpd = dev_to_genpd(dev);
struct generic_pm_domain_data *gpd_data = dev_gpd_data(dev);
unsigned int prev_state;
int ret;
prev_state = gpd_data->performance_state;
gpd_data->performance_state = state;
state = _genpd_reeval_performance_state(genpd, state);
ret = _genpd_set_performance_state(genpd, state, 0);
if (ret)
gpd_data->performance_state = prev_state;
return ret;
}
/**
* dev_pm_genpd_set_performance_state- Set performance state of device's power
* domain.
@ -397,8 +415,6 @@ err:
int dev_pm_genpd_set_performance_state(struct device *dev, unsigned int state)
{
struct generic_pm_domain *genpd;
struct generic_pm_domain_data *gpd_data;
unsigned int prev;
int ret;
genpd = dev_to_genpd_safe(dev);
@ -410,16 +426,7 @@ int dev_pm_genpd_set_performance_state(struct device *dev, unsigned int state)
return -EINVAL;
genpd_lock(genpd);
gpd_data = to_gpd_data(dev->power.subsys_data->domain_data);
prev = gpd_data->performance_state;
gpd_data->performance_state = state;
state = _genpd_reeval_performance_state(genpd, state);
ret = _genpd_set_performance_state(genpd, state, 0);
if (ret)
gpd_data->performance_state = prev;
ret = genpd_set_performance_state(dev, state);
genpd_unlock(genpd);
return ret;