Add initialize constructor for variable init.

Change-Id: I0c469e3609f4c99a36531d1a2a9adbcea48aab50
Signed-off-by: Yunmi Ha <yunmi.ha@samsung.com>

34 files changed, 251 insertions, 245 deletions

diff --git a/plugins/iot/display/core.c b/plugins/iot/display/core.c
index 2b5880ab..0fe3a8ab 100644
--- a/plugins/iot/display/core.c
+++ b/plugins/iot/display/core.c
@@ -2185,16 +2185,6 @@ static void add_timer_for_init_dpms(void)
  * Power manager Main
  *
  */
-static void set_module_display_plugin(void)
-{
-    disp_plgn = get_display_plugin();             /* self */
-    if (!disp_plgn)
-        _E("Failed to get display plugin.");
-
-    set_apps_display_plugin(disp_plgn);           /* apps */
-    set_display_signal_display_plugin(disp_plgn); /* display-signal */
-}
-
 static int display_probe(void *data)
 {
 	int ret;
@@ -2210,7 +2200,6 @@ static int display_probe(void *data)
 
 	/* display_plugin instance initialization */
 	init_pm_internal();
-	set_module_display_plugin();
 	disp_plgn->device_flags_to_string = __device_flags_to_string;
 
 	return 0;
@@ -2512,6 +2501,13 @@ static const struct device_ops display_device_ops = {
 
 DEVICE_OPS_REGISTER(&display_device_ops)
 
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
 /**
  * @}
  */
diff --git a/plugins/iot/display/key-filter.c b/plugins/iot/display/key-filter.c
index 66ab61ca..186a1157 100644
--- a/plugins/iot/display/key-filter.c
+++ b/plugins/iot/display/key-filter.c
@@ -757,10 +757,6 @@ static struct display_actor_ops display_menukey_actor = {
 
 static void keyfilter_init(void)
 {
-	disp_plgn = get_display_plugin();
-	if (!disp_plgn)
-		_E("Failed to get display plugin.");
-
 	display_add_actor(&display_powerkey_actor);
 	display_add_actor(&display_menukey_actor);
 
@@ -795,3 +791,10 @@ static const struct display_keyfilter_ops normal_keyfilter_ops = {
 
 const struct display_keyfilter_ops *keyfilter_ops = &normal_keyfilter_ops;
 
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
diff --git a/plugins/mobile/battery/battery-notification.c b/plugins/mobile/battery/battery-notification.c
index 3903c0da..d72c2874 100644
--- a/plugins/mobile/battery/battery-notification.c
+++ b/plugins/mobile/battery/battery-notification.c
@@ -381,10 +381,6 @@ static void battery_notification_init(void *data)
 	if (!plugin)
 		return;
 
-	disp_plgn = get_display_plugin();
-	if (!disp_plgn)
-		_E("Failed to get display plugin.");
-
 	_D("Add plugins for battery notification.");
 	plugin->lowbat_noti_launch = launch_lowbat_noti;
 	plugin->lowbat_noti_clean = clean_lowbat_noti;
@@ -410,3 +406,11 @@ static const struct battery_ops battery_notification_ops = {
 };
 
 BATTERY_OPS_REGISTER(&battery_notification_ops)
+
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
diff --git a/plugins/mobile/display/core.c b/plugins/mobile/display/core.c
index ec011021..80cef01c 100644
--- a/plugins/mobile/display/core.c
+++ b/plugins/mobile/display/core.c
@@ -2195,17 +2195,6 @@ static void add_timer_for_init_dpms(void)
  * Power manager Main
  *
  */
-
-static void set_module_display_plugin(void)
-{
-    disp_plgn = get_display_plugin();             /* self */
-    if (!disp_plgn)
-        _E("Failed to get display plugin.");
-
-    set_apps_display_plugin(disp_plgn);           /* apps */
-    set_display_signal_display_plugin(disp_plgn); /* display-signal */
-}
-
 static int display_probe(void *data)
 {
 	int ret;
@@ -2221,7 +2210,6 @@ static int display_probe(void *data)
 
 	/* display_plugin instance initialization */
 	init_pm_internal();
-	set_module_display_plugin();
 	disp_plgn->device_flags_to_string = __device_flags_to_string;
 
 	return 0;
@@ -2528,6 +2516,13 @@ static const struct device_ops display_device_ops = {
 
 DEVICE_OPS_REGISTER(&display_device_ops)
 
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
 /**
  * @}
  */
diff --git a/plugins/mobile/display/key-filter.c b/plugins/mobile/display/key-filter.c
index 546d4e1b..bd939ff6 100644
--- a/plugins/mobile/display/key-filter.c
+++ b/plugins/mobile/display/key-filter.c
@@ -784,10 +784,6 @@ static struct display_actor_ops display_menukey_actor = {
 
 static void keyfilter_init(void)
 {
-	disp_plgn = get_display_plugin();
-	if (!disp_plgn)
-		_E("Failed to get display plugin.");
-
 	display_add_actor(&display_powerkey_actor);
 	display_add_actor(&display_menukey_actor);
 
@@ -822,3 +818,10 @@ static const struct display_keyfilter_ops normal_keyfilter_ops = {
 
 const struct display_keyfilter_ops *keyfilter_ops = &normal_keyfilter_ops;
 
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
diff --git a/plugins/tv/display/core.c b/plugins/tv/display/core.c
index 058fa835..f997dd14 100644
--- a/plugins/tv/display/core.c
+++ b/plugins/tv/display/core.c
@@ -2186,16 +2186,6 @@ static void add_timer_for_init_dpms(void)
  *
  */
 
-static void set_module_display_plugin(void)
-{
-    disp_plgn = get_display_plugin();             /* self */
-    if (!disp_plgn)
-        _E("Failed to get display plugin.");
-
-    set_apps_display_plugin(disp_plgn);           /* apps */
-    set_display_signal_display_plugin(disp_plgn); /* display-signal */
-}
-
 static int display_probe(void *data)
 {
 	int ret;
@@ -2211,7 +2201,6 @@ static int display_probe(void *data)
 
 	/* display_plugin instance initialization */
 	init_pm_internal();
-	set_module_display_plugin();
 	disp_plgn->device_flags_to_string = __device_flags_to_string;
 
 	return 0;
@@ -2513,6 +2502,13 @@ static const struct device_ops display_device_ops = {
 
 DEVICE_OPS_REGISTER(&display_device_ops)
 
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
 /**
  * @}
  */
diff --git a/plugins/tv/display/key-filter.c b/plugins/tv/display/key-filter.c
index d88ff6b3..3874dbaf 100644
--- a/plugins/tv/display/key-filter.c
+++ b/plugins/tv/display/key-filter.c
@@ -751,10 +751,6 @@ static struct display_actor_ops display_menukey_actor = {
 
 static void keyfilter_init(void)
 {
-	disp_plgn = get_display_plugin();
-	if (!disp_plgn)
-		_E("Failed to get display plugin.");
-
 	display_add_actor(&display_powerkey_actor);
 	display_add_actor(&display_menukey_actor);
 
@@ -789,3 +785,10 @@ static const struct display_keyfilter_ops normal_keyfilter_ops = {
 
 const struct display_keyfilter_ops *keyfilter_ops = &normal_keyfilter_ops;
 
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
diff --git a/plugins/tv/display/state-tv.c b/plugins/tv/display/state-tv.c
index fdf48c6e..f8f1df13 100644
--- a/plugins/tv/display/state-tv.c
+++ b/plugins/tv/display/state-tv.c
@@ -551,10 +551,6 @@ void state_tv_init(void)
 
 	_I("TV Profile !!");
 
-	disp_plgn = get_display_plugin();
-	if (!disp_plgn)
-		_E("Failed to get display plugin.");
-
 	for (i = 0 ; i < ARRAY_SIZE(tv_states) ; i++)
 		set_tv_operations(tv_states[i].state,
 				tv_states[i].name,
@@ -571,3 +567,11 @@ void state_tv_deinit(void)
 {
 	unregister_notifier(DEVICE_NOTIFIER_DISPLAY_LOCK, display_lock_changed);
 }
+
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
diff --git a/plugins/wearable/display/auto-brightness-sensorhub.c b/plugins/wearable/display/auto-brightness-sensorhub.c
index 2d102853..502c86f2 100644
--- a/plugins/wearable/display/auto-brightness-sensorhub.c
+++ b/plugins/wearable/display/auto-brightness-sensorhub.c
@@ -339,12 +339,6 @@ int prepare_level_handler(void)
 {
 	int status, ret;
 
-	disp_plgn = get_display_plugin();
-	if (!disp_plgn) {
-		_E("Failed to get display plugin.");
-		return -1;
-	}
-
 	display_info.set_brightness_level = set_brightness_level;
 	disp_plgn->auto_brightness_control = auto_brightness_control;
 
@@ -370,3 +364,11 @@ void exit_level_handler(void)
 	unregister_notifier(DEVICE_NOTIFIER_LCD_OFF, display_off_changed);
 	unregister_notifier(DEVICE_NOTIFIER_LCD_OFF_COMPLETE, display_off_complete_changed);
 }
+
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
diff --git a/plugins/wearable/display/bezel.c b/plugins/wearable/display/bezel.c
index 5c96a3ec..bb22d8f9 100644
--- a/plugins/wearable/display/bezel.c
+++ b/plugins/wearable/display/bezel.c
@@ -161,12 +161,6 @@ static int bezel_probe(void *data)
 	struct hw_info *info;
 	int ret;
 
-	disp_plgn = get_display_plugin();
-	if (!disp_plgn) {
-		_E("Failed to get display plugin.");
-		return -1;
-	}
-
 	if (bezel_dev)
 		return 0;
 
@@ -321,3 +315,11 @@ static const struct device_ops bezel_device_ops = {
 };
 
 DEVICE_OPS_REGISTER(&bezel_device_ops)
+
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
diff --git a/plugins/wearable/display/core.c b/plugins/wearable/display/core.c
index dda1739f..60d1db2d 100644
--- a/plugins/wearable/display/core.c
+++ b/plugins/wearable/display/core.c
@@ -2277,17 +2277,6 @@ static void add_timer_for_init_dpms(void)
  * Power manager Main
  *
  */
-
-static void set_module_display_plugin(void)
-{
-	disp_plgn = get_display_plugin();             /* self */
-	if (!disp_plgn)
-		_E("Failed to get display plugin.");
-
-	set_apps_display_plugin(disp_plgn);           /* apps */
-	set_display_signal_display_plugin(disp_plgn); /* display-signal */
-}
-
 static int display_probe(void *data)
 {
 	int ret;
@@ -2303,7 +2292,6 @@ static int display_probe(void *data)
 
 	/* display_plugin instance initialization */
 	init_pm_internal();
-	set_module_display_plugin();
 	disp_plgn->device_flags_to_string = __device_flags_to_string;
 
 	return 0;
@@ -2642,6 +2630,13 @@ static const struct device_ops display_device_ops = {
 
 DEVICE_OPS_REGISTER(&display_device_ops)
 
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
 /**
  * @}
  */
diff --git a/plugins/wearable/display/key-filter.c b/plugins/wearable/display/key-filter.c
index a609cd1a..b543a8ac 100644
--- a/plugins/wearable/display/key-filter.c
+++ b/plugins/wearable/display/key-filter.c
@@ -731,10 +731,6 @@ static struct display_actor_ops display_menukey_actor = {
 
 static void keyfilter_init(void)
 {
-	disp_plgn = get_display_plugin();
-	if (!disp_plgn)
-		_E("Failed to get display plugin.");
-
 	display_add_actor(&display_powerkey_actor);
 	display_add_actor(&display_menukey_actor);
 
@@ -769,3 +765,10 @@ static const struct display_keyfilter_ops normal_keyfilter_ops = {
 
 const struct display_keyfilter_ops *keyfilter_ops = &normal_keyfilter_ops;
 
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
diff --git a/plugins/wearable/display/swim.c b/plugins/wearable/display/swim.c
index 3407fc02..36514561 100644
--- a/plugins/wearable/display/swim.c
+++ b/plugins/wearable/display/swim.c
@@ -112,17 +112,6 @@ static int swim_restore_cb(void *data)
 	return 0;
 }
 
-static int swim_probe(void *data)
-{
-	disp_plgn = get_display_plugin();
-	if (!disp_plgn) {
-		_E("Failed to get display plugin.");
-		return -1;
-	}
-
-	return 0;
-}
-
 static void swim_init(void *data)
 {
 	int ret;
@@ -143,9 +132,16 @@ static void swim_init(void *data)
 
 static const struct device_ops swim_device_ops = {
 	DECLARE_NAME_LEN("swim"),
-	.probe	  = swim_probe,
 	.init     = swim_init,
 	.execute  = swim_execute,
 };
 
 DEVICE_OPS_REGISTER(&swim_device_ops)
+
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
diff --git a/src/apps/apps.c b/src/apps/apps.c
index b92e6931..72deb24a 100644
--- a/src/apps/apps.c
+++ b/src/apps/apps.c
@@ -173,7 +173,10 @@ int remove_notification(char *type, int id)
 			__cb, -1, NULL);
 }
 
-void set_apps_display_plugin(struct display_plugin *dp)
+static void __CONSTRUCTOR__ initialize(void)
 {
-	disp_plgn = dp;
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
 }
diff --git a/src/apps/apps.h b/src/apps/apps.h
index d455c8cc..5e1b3930 100644
--- a/src/apps/apps.h
+++ b/src/apps/apps.h
@@ -36,7 +36,6 @@ int launch_system_app(char *type, int num, ...);
 int launch_message_post(char *type);
 int add_async_notification(char *type, dbus_pending_cb func, char *sig, ...);
 int remove_notification(char *type, int id);
-void set_apps_display_plugin(struct display_plugin *dp);
 
 #endif /* __APPS_H__ */
 
diff --git a/src/battery/battery-time.c b/src/battery/battery-time.c
index 92bd6d72..154be9ac 100644
--- a/src/battery/battery-time.c
+++ b/src/battery/battery-time.c
@@ -398,12 +398,6 @@ static int battery_probe(void *data)
 	struct hw_info *info;
 	int ret;
 
-	disp_plgn = get_display_plugin();
-	if (!disp_plgn) {
-		_E("Failed to get display plugin.");
-		return -1;
-	}
-
 	ret = hw_get_info(BATTERY_HARDWARE_DEVICE_ID,
 			(const struct hw_info **)&info);
 
@@ -438,3 +432,10 @@ static const struct device_ops battery_time_device_ops = {
 
 DEVICE_OPS_REGISTER(&battery_time_device_ops)
 
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
diff --git a/src/battery/lowbat-handler.c b/src/battery/lowbat-handler.c
index b80d8acf..e8e32a29 100644
--- a/src/battery/lowbat-handler.c
+++ b/src/battery/lowbat-handler.c
@@ -697,18 +697,6 @@ static int lowbat_probe(void *data)
 	static const struct device_ops *ops;
 	int ret = -EINVAL;
 
-	disp_plgn = get_display_plugin();
-	if (!disp_plgn) {
-		_E("Failed to get display plugin.");
-		return ret;
-	}
-
-	battery_plgn = get_battery_plugin();
-	if (!battery_plgn) {
-		_E("Failed to get battery plugin.");
-		return ret;
-	}
-
 	FIND_DEVICE_INT(ops, "power_supply");
 	ret = ops->probe(data);
 	if (ret == 0)
@@ -787,3 +775,16 @@ static const struct device_ops lowbat_device_ops = {
 };
 
 DEVICE_OPS_REGISTER(&lowbat_device_ops)
+
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+
+	battery_plgn = get_battery_plugin();
+	if (!battery_plgn) {
+		_E("Failed to get battery plugin.");
+	}
+}
diff --git a/src/battery/power-supply.c b/src/battery/power-supply.c
index e91a8535..44f0711f 100644
--- a/src/battery/power-supply.c
+++ b/src/battery/power-supply.c
@@ -1597,18 +1597,6 @@ static int power_supply_probe(void *data)
 	struct hw_info *info;
 	int ret, r;
 
-	disp_plgn = get_display_plugin();
-	if (!disp_plgn) {
-		_E("Failed to get display plugin.");
-		return -1;
-	}
-
-	battery_plgn = get_battery_plugin();
-	if (!battery_plgn) {
-		_E("Failed to get battery plugin.");
-		return -1;
-	}
-
 	if (battery_dev)
 		return 0;
 
@@ -1746,3 +1734,17 @@ static const struct device_ops power_supply_ops = {
 };
 
 DEVICE_OPS_REGISTER(&power_supply_ops)
+
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+
+	battery_plgn = get_battery_plugin();
+	if (!battery_plgn) {
+		_E("Failed to get battery plugin.");
+	}
+}
+
diff --git a/src/display/ambient-mode.c b/src/display/ambient-mode.c
index 05777e31..fb8809b9 100644
--- a/src/display/ambient-mode.c
+++ b/src/display/ambient-mode.c
@@ -261,10 +261,6 @@ static void ambient_init(void *data)
 {
 	int ret;
 
-	disp_plgn = get_display_plugin();
-	if (!disp_plgn)
-		_E("Failed to get display plugin.");
-
 	ret = vconf_get_bool("db/starter/always_on_display", &ambient_condition);
 	if (ret < 0) {
 		_E("Failed to get initial AOD condition. AOD is not going to work.");
@@ -307,3 +303,11 @@ static const struct display_ops ambient_ops = {
 };
 
 DISPLAY_OPS_REGISTER(&ambient_ops)
+
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
diff --git a/src/display/display-dbus.c b/src/display/display-dbus.c
index e66c78eb..3cd7f200 100644
--- a/src/display/display-dbus.c
+++ b/src/display/display-dbus.c
@@ -1278,12 +1278,6 @@ int init_pm_dbus(void)
 {
 	int ret;
 
-	disp_plgn = get_display_plugin();
-	if (!disp_plgn) {
-		_E("Failed to get display plugin.");
-		return -1;
-	}
-
 	display_add_actor(&display_api_actor);
 	display_add_actor(&display_gesture_actor);
 
@@ -1304,3 +1298,10 @@ int init_pm_dbus(void)
 	return 0;
 }
 
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
diff --git a/src/display/display-signal.c b/src/display/display-signal.c
index 0abfb043..e695e995 100644
--- a/src/display/display-signal.c
+++ b/src/display/display-signal.c
@@ -174,7 +174,10 @@ void set_process_active(bool flag, pid_t pid)
 		_E("Failed to send dbus signal to resourced.");
 }
 
-void set_display_signal_display_plugin(struct display_plugin *dp)
+static void __CONSTRUCTOR__ initialize(void)
 {
-	disp_plgn = dp;
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
 }
diff --git a/src/display/display-signal.h b/src/display/display-signal.h
index 35c367df..f68b0b22 100644
--- a/src/display/display-signal.h
+++ b/src/display/display-signal.h
@@ -23,7 +23,6 @@
 #include <libsyscommon/dbus-system.h>
 
 #include "util.h"
-#include "display-ops.h"
 #include "core/devices.h"
 #include "core/device-notifier.h"
 
@@ -58,6 +57,5 @@ void broadcast_lcd_on(enum signal_type type, enum device_flags flags);
 void broadcast_lcd_off(enum signal_type type, enum device_flags flags);
 void broadcast_lcd_off_late(enum device_flags flags);
 void set_process_active(bool flag, pid_t pid);
-void set_display_signal_display_plugin(struct display_plugin *dp);
 
 #endif /* __DISPLAY_SIGNAL_H__ */
diff --git a/src/display/poll.c b/src/display/poll.c
index 548f186e..279675c5 100644
--- a/src/display/poll.c
+++ b/src/display/poll.c
@@ -177,13 +177,15 @@ static int __pm_change_internal(pid_t pid, int s_bits)
 
 void init_pm_internal()
 {
+	disp_plgn->pm_lock_internal = __pm_lock_internal;
+	disp_plgn->pm_unlock_internal = __pm_unlock_internal;
+	disp_plgn->pm_change_internal = __pm_change_internal;
+}
+
+static void __CONSTRUCTOR__ initialize(void)
+{
 	disp_plgn = get_display_plugin();
 	if (!disp_plgn) {
 		_E("Failed to get display plugin.");
-		return ;
 	}
-
-	disp_plgn->pm_lock_internal = __pm_lock_internal;
-	disp_plgn->pm_unlock_internal = __pm_unlock_internal;
-	disp_plgn->pm_change_internal = __pm_change_internal;
 }
diff --git a/src/display/setting.c b/src/display/setting.c
index 30065cc4..05520014 100644
--- a/src/display/setting.c
+++ b/src/display/setting.c
@@ -248,12 +248,6 @@ int init_setting(int (*func) (int key_idx, int val))
 {
 	int i;
 
-	disp_plgn = get_display_plugin();
-	if (!disp_plgn) {
-		_E("Failed to get display plugin.");
-		return -1;
-	}
-
 	if (func != NULL)
 		disp_plgn->update_pm_setting = func;
 
@@ -281,3 +275,10 @@ int exit_setting(void)
 	return 0;
 }
 
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
diff --git a/src/extcon/cradle.c b/src/extcon/cradle.c
index 9bc51d70..72e368c3 100644
--- a/src/extcon/cradle.c
+++ b/src/extcon/cradle.c
@@ -125,10 +125,6 @@ static void cradle_init(void *data)
 {
 	int ret;
 
-	disp_plgn = get_display_plugin();
-	if (!disp_plgn)
-		_E("Failed to get display plugin.");
-
 	register_notifier(DEVICE_NOTIFIER_LCD, display_changed);
 
 	ret = dbus_handle_add_dbus_object(NULL, DEVICED_PATH_SYSNOTI, &dbus_interface);
@@ -149,3 +145,11 @@ static struct extcon_ops cradle_extcon_ops = {
 };
 
 EXTCON_OPS_REGISTER(cradle_extcon_ops)
+
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
diff --git a/src/extcon/earjack.c b/src/extcon/earjack.c
index fe8e5f92..003b7bb1 100644
--- a/src/extcon/earjack.c
+++ b/src/extcon/earjack.c
@@ -88,17 +88,17 @@ static int earjack_update(int status)
 	return 0;
 }
 
-static void earjack_init(void *data)
-{
-	disp_plgn = get_display_plugin();
-	if (!disp_plgn)
-		_E("Failed to get display plugin.");
-}
-
 static struct extcon_ops earjack_extcon_ops = {
 	.name   = EXTCON_CABLE_HEADPHONE_OUT,
-	.init   = earjack_init,
 	.update = earjack_update,
 };
 
 EXTCON_OPS_REGISTER(earjack_extcon_ops)
+
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
diff --git a/src/extcon/hdmi.c b/src/extcon/hdmi.c
index a94e2009..9eac710d 100644
--- a/src/extcon/hdmi.c
+++ b/src/extcon/hdmi.c
@@ -120,10 +120,6 @@ static void hdmi_init(void *data)
 {
 	int ret;
 
-	disp_plgn = get_display_plugin();
-	if (!disp_plgn)
-		_E("Failed to get display plugin.");
-
 	register_notifier(DEVICE_NOTIFIER_LCD, display_changed);
 
 	ret = dbus_handle_add_dbus_object(NULL, DEVICED_PATH_SYSNOTI, &dbus_interface);
@@ -144,3 +140,11 @@ static struct extcon_ops hdmi_extcon_ops = {
 };
 
 EXTCON_OPS_REGISTER(hdmi_extcon_ops)
+
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
diff --git a/src/led/touch-key.c b/src/led/touch-key.c
index 0e677163..6f679be0 100644
--- a/src/led/touch-key.c
+++ b/src/led/touch-key.c
@@ -260,12 +260,6 @@ static int touchled_service_free(void)
 
 static int touchled_probe(void *data)
 {
-	disp_plgn = get_display_plugin();
-	if (!disp_plgn) {
-		_E("Failed to get display plugin.");
-		return -1;
-	}
-
 	/* load led device */
 	return touchled_service_load();
 }
@@ -333,3 +327,11 @@ static const struct device_ops touchled_device_ops = {
 };
 
 DEVICE_OPS_REGISTER(&touchled_device_ops)
+
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
diff --git a/src/power/boot.c b/src/power/boot.c
index feadbd8d..24fc3ead 100644
--- a/src/power/boot.c
+++ b/src/power/boot.c
@@ -79,16 +79,9 @@ static void booting_done_received(GDBusConnection  *conn,
 
 	remove_booting_done_handler(NULL);
 
-	if (!disp_plgn)
-		disp_plgn = get_display_plugin();
-
-	if (!disp_plgn)
-		_E("Failed to get display plugin.");
-	else {
-		_I("Real booting done. Unlock LCD_OFF.");
-		if (disp_plgn->pm_unlock_internal)
-			disp_plgn->pm_unlock_internal(INTERNAL_LOCK_BOOTING, LCD_OFF, PM_SLEEP_MARGIN);
-	}
+	_I("Real booting done. Unlock LCD_OFF.");
+	if (disp_plgn->pm_unlock_internal)
+		disp_plgn->pm_unlock_internal(INTERNAL_LOCK_BOOTING, LCD_OFF, PM_SLEEP_MARGIN);
 
 	_I("Signal booting done.");
 
@@ -120,3 +113,11 @@ void add_booting_done_handler(void *data)
 	if (sig_id[1] <= 0)
 		_E("Failed to init dbus signal(%s).", SYSTEMD_DBUS_SIGNAL_USER_STARTUP_FINISHED);
 }
+
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
diff --git a/src/power/power-handler.c b/src/power/power-handler.c
index 6300c843..4376b577 100644
--- a/src/power/power-handler.c
+++ b/src/power/power-handler.c
@@ -750,25 +750,10 @@ out:
 	return done;
 }
 
-static int power_probe(void *data)
-{
-	disp_plgn = get_display_plugin();
-	if (!disp_plgn) {
-		_E("Failed to get display plugin.");
-		return -1;
-	}
-
-	return 0;
-}
-
 static void power_init(void *data)
 {
 	int ret;
 
-	disp_plgn = get_display_plugin();
-	if (!disp_plgn)
-		_E("Failed to get display plugin.");
-
 	/* init dbus interface */
 	ret = dbus_handle_add_dbus_object(NULL, DEVICED_PATH_POWEROFF, &dbus_interface);
 	if (ret < 0)
@@ -791,9 +776,16 @@ static void power_init(void *data)
 
 static const struct device_ops power_device_ops = {
 	DECLARE_NAME_LEN(POWER_OPS_NAME),
-	.probe	  = power_probe,
 	.init     = power_init,
 	.execute  = power_execute,
 };
 
 DEVICE_OPS_REGISTER(&power_device_ops)
+
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
diff --git a/src/time/time-handler.c b/src/time/time-handler.c
index 0d8d2ff4..bac2374c 100644
--- a/src/time/time-handler.c
+++ b/src/time/time-handler.c
@@ -387,16 +387,6 @@ out:
 	return 0;
 }
 
-static int time_probe(void *data)
-{
-	disp_plgn = get_display_plugin();
-	if (!disp_plgn) {
-		_E("Failed to get display plugin.");
-		return -1;
-	}
-	return 0;
-}
-
 static void time_init(void *data)
 {
 	int ret;
@@ -416,8 +406,15 @@ static void time_init(void *data)
 
 static const struct device_ops time_device_ops = {
 	.name     = "time",
-	.probe	  = time_probe,
 	.init     = time_init,
 };
 
 DEVICE_OPS_REGISTER(&time_device_ops)
+
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
diff --git a/src/touchscreen/touchscreen.c b/src/touchscreen/touchscreen.c
index 2be7c1c5..295503bb 100644
--- a/src/touchscreen/touchscreen.c
+++ b/src/touchscreen/touchscreen.c
@@ -103,12 +103,6 @@ static int touchscreen_probe(void *data)
 	int ret;
 	struct hw_info *info;
 
-	disp_plgn = get_display_plugin();
-	if (!disp_plgn) {
-		_E("Failed to get display plugin.");
-		return -1;
-	}
-
 	if (touchscreen_dev)
 		return 0;
 
@@ -366,3 +360,10 @@ static const struct device_ops touchscreen_device_ops = {
 
 DEVICE_OPS_REGISTER(&touchscreen_device_ops)
 
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
diff --git a/src/usb/usb.c b/src/usb/usb.c
index b82534db..691d0c33 100644
--- a/src/usb/usb.c
+++ b/src/usb/usb.c
@@ -450,10 +450,6 @@ static void usb_init(void *data)
 {
 	int ret;
 
-	disp_plgn = get_display_plugin();
-	if (!disp_plgn)
-		_E("Failed to get display plugin.");
-
 	usb_state_retrieve_selected_mode();
 
 	ret = usb_probe();
@@ -501,3 +497,11 @@ static struct extcon_ops extcon_usb_ops = {
 };
 
 EXTCON_OPS_REGISTER(extcon_usb_ops)
+
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}
diff --git a/src/usbhost/usb-host.c b/src/usbhost/usb-host.c
index 12f8d060..fd076fee 100644
--- a/src/usbhost/usb-host.c
+++ b/src/usbhost/usb-host.c
@@ -1128,19 +1128,6 @@ static int booting_done(void *data)
 	return 0;
 }
 
-static int usbhost_probe(void *data)
-{
-	if (!disp_plgn)
-		disp_plgn = get_display_plugin();
-
-	if (!disp_plgn) {
-		_E("Failed to get display plugin.");
-		return -1;
-	}
-
-	return 0;
-}
-
 static void usbhost_init(void *data)
 {
 	int ret;
@@ -1195,22 +1182,12 @@ static void usbhost_exit(void *data)
 
 static const struct device_ops usbhost_device_ops = {
 	.name	= "usbhost",
-	.probe	= usbhost_probe,
 	.init	= usbhost_init,
 	.exit	= usbhost_exit,
 };
 
 DEVICE_OPS_REGISTER(&usbhost_device_ops)
 
-static void extcon_usbhost_init()
-{
-	if (!disp_plgn)
-		disp_plgn = get_display_plugin();
-
-	if (!disp_plgn)
-		_E("Failed to get display plugin.");
-}
-
 static int extcon_usbhost_state_changed(int status)
 {
 	if (status == USBHOST_DISCONNECTED) {
@@ -1227,8 +1204,15 @@ static int extcon_usbhost_state_changed(int status)
 
 static struct extcon_ops extcon_usbhost_ops = {
 	.name   = EXTCON_CABLE_USB_HOST,
-	.init   = extcon_usbhost_init,
 	.update = extcon_usbhost_state_changed,
 };
 
 EXTCON_OPS_REGISTER(extcon_usbhost_ops)
+
+static void __CONSTRUCTOR__ initialize(void)
+{
+	disp_plgn = get_display_plugin();
+	if (!disp_plgn) {
+		_E("Failed to get display plugin.");
+	}
+}