PM / Domains: Export pm_genpd_poweron() in header

Allow SoC-specific code to call pm_genpd_poweron().

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

2 files changed, 6 insertions, 1 deletions

diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index 1aed94c73cfc..1f1a7d85f29d 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -37,7 +37,7 @@ static void genpd_sd_counter_dec(struct generic_pm_domain *genpd)
  * Restore power to @genpd and all of its parents so that it is possible to
  * resume a device belonging to it.
  */
-static int pm_genpd_poweron(struct generic_pm_domain *genpd)
+int pm_genpd_poweron(struct generic_pm_domain *genpd)
 {
         int ret = 0;
 
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 98491ee35102..14fb0953fa47 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -63,6 +63,7 @@ extern int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd,
                                      struct generic_pm_domain *target);
 extern void pm_genpd_init(struct generic_pm_domain *genpd,
                           struct dev_power_governor *gov, bool is_off);
+extern int pm_genpd_poweron(struct generic_pm_domain *genpd);
 #else
 static inline int pm_genpd_add_device(struct generic_pm_domain *genpd,
                                       struct device *dev)
@@ -86,6 +87,10 @@ static inline int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd,
 }
 static inline void pm_genpd_init(struct generic_pm_domain *genpd,
                                  struct dev_power_governor *gov, bool is_off) {}
+static inline int pm_genpd_poweron(struct generic_pm_domain *genpd)
+{
+        return -ENOSYS;
+}
 #endif
 
 #endif /* _LINUX_PM_DOMAIN_H */