static int pd_power_up_a3rv(struct generic_pm_domain *genpd)
{
int ret = pd_power_up(genpd);
/* force A4LC on after A3RV has been requested on */
pm_genpd_poweron(&sh7372_a4lc.genpd);
return ret;
}
static int pd_power_down_a3rv(struct generic_pm_domain *genpd)
{
int ret = pd_power_down(genpd);
/* try to power down A4LC after A3RV is requested off */
pm_genpd_poweron(&sh7372_a4lc.genpd);
genpd_queue_power_off_work(&sh7372_a4lc.genpd);
return ret;
}
/**
* pm_genpd_poweron - Restore power to a given PM domain and its parents.
* @genpd: PM domain to power up.
*
* Restore power to @genpd and all of its parents so that it is possible to
* resume a device belonging to it.
*/
int pm_genpd_poweron(struct generic_pm_domain *genpd)
{
struct generic_pm_domain *parent = genpd->parent;
int ret = 0;
start:
if (parent) {
genpd_acquire_lock(parent);
mutex_lock_nested(&genpd->lock, SINGLE_DEPTH_NESTING);
} else {
mutex_lock(&genpd->lock);
}
if (genpd->status == GPD_STATE_ACTIVE
|| (genpd->prepared_count > 0 && genpd->suspend_power_off))
goto out;
if (genpd->status != GPD_STATE_POWER_OFF) {
genpd_set_active(genpd);
goto out;
}
if (parent && parent->status != GPD_STATE_ACTIVE) {
mutex_unlock(&genpd->lock);
genpd_release_lock(parent);
ret = pm_genpd_poweron(parent);
if (ret)
return ret;
goto start;
}
if (genpd->power_on) {
ret = genpd->power_on(genpd);
if (ret)
goto out;
}
genpd_set_active(genpd);
if (parent)
parent->sd_count++;
out:
mutex_unlock(&genpd->lock);
if (parent)
genpd_release_lock(parent);
return ret;
}
