PM / Domain: Add struct device to genpd

The power-domain core would be using the OPP core going forward and the
OPP core has the basic requirement of a device structure for its working.

Add a struct device to the genpd structure. This doesn't register the
device with device core as the "dev" pointer is mostly used by the OPP
core as a cookie for now and registering the device is not mandatory.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>

2 files changed, 4 insertions, 0 deletions

diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index 1ea0e2502e8e..4a3dc9cc0848 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -1696,6 +1696,9 @@ int pm_genpd_init(struct generic_pm_domain *genpd,
                         return ret;
         }
 
+        device_initialize(&genpd->dev);
+        dev_set_name(&genpd->dev, "%s", genpd->name);
+
         mutex_lock(&gpd_list_lock);
         list_add(&genpd->gpd_list_node, &gpd_list);
         mutex_unlock(&gpd_list_lock);
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 04dbef9847d3..aaacaa35005d 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -49,6 +49,7 @@ struct genpd_power_state {
 struct genpd_lock_ops;
 
 struct generic_pm_domain {
+        struct device dev;
         struct dev_pm_domain domain;    /* PM domain operations */
         struct list_head gpd_list_node; /* Node in the global PM domains list */
         struct list_head master_links;  /* Links with PM domain as a master */