diff --git a/drivers/gpu/drm/bridge/ite-it6505.c b/drivers/gpu/drm/bridge/ite-it6505.c
index 6feeb3e49b0a..b929fc766e24 100644
--- a/drivers/gpu/drm/bridge/ite-it6505.c
+++ b/drivers/gpu/drm/bridge/ite-it6505.c
@@ -412,6 +412,7 @@ struct it6505 {
 	 * Mutex protects extcon and interrupt functions from interfering
 	 * each other.
 	 */
+	struct mutex irq_lock;
 	struct mutex extcon_lock;
 	struct mutex mode_lock; /* used to bridge_detect */
 	struct mutex aux_lock; /* used to aux data transfers */
@@ -440,7 +441,7 @@ struct it6505 {
 	enum hdcp_state hdcp_status;
 	struct delayed_work hdcp_work;
 	struct work_struct hdcp_wait_ksv_list;
-	struct completion wait_edid_complete;
+	struct completion extcon_completion;
 	u8 auto_train_retry;
 	bool hdcp_desired;
 	bool is_repeater;
@@ -2316,8 +2317,8 @@ static void it6505_irq_hpd(struct it6505 *it6505)
 			     it6505->hpd_state ? "high" : "low");
 
 	if (it6505->hpd_state) {
-		wait_for_completion_timeout(&it6505->wait_edid_complete,
-					    msecs_to_jiffies(6000));
+		wait_for_completion_timeout(&it6505->extcon_completion,
+					    msecs_to_jiffies(1000));
 		it6505_aux_on(it6505);
 		if (it6505->dpcd[0] == 0) {
 			it6505_get_dpcd(it6505, DP_DPCD_REV, it6505->dpcd,
@@ -2493,8 +2494,7 @@ static irqreturn_t it6505_int_threaded_handler(int unused, void *data)
 	};
 	int int_status[3], i;
 
-	msleep(100);
-	mutex_lock(&it6505->extcon_lock);
+	mutex_lock(&it6505->irq_lock);
 
 	if (it6505->enable_drv_hold || !it6505->powered)
 		goto unlock;
@@ -2524,7 +2524,7 @@ static irqreturn_t it6505_int_threaded_handler(int unused, void *data)
 	}
 
 unlock:
-	mutex_unlock(&it6505->extcon_lock);
+	mutex_unlock(&it6505->irq_lock);
 
 	return IRQ_HANDLED;
 }
@@ -2701,9 +2701,12 @@ static void it6505_extcon_work(struct work_struct *work)
 		 */
 		if (ret)
 			it6505_poweron(it6505);
+
+		complete_all(&it6505->extcon_completion);
 	} else {
 		DRM_DEV_DEBUG_DRIVER(dev, "start to power off");
 		pm_runtime_put_sync(dev);
+		reinit_completion(&it6505->extcon_completion);
 
 		drm_helper_hpd_irq_event(it6505->bridge.dev);
 		memset(it6505->dpcd, 0, sizeof(it6505->dpcd));
@@ -3274,6 +3277,7 @@ static int it6505_i2c_probe(struct i2c_client *client,
 	if (!it6505)
 		return -ENOMEM;
 
+	mutex_init(&it6505->irq_lock);
 	mutex_init(&it6505->extcon_lock);
 	mutex_init(&it6505->mode_lock);
 	mutex_init(&it6505->aux_lock);
@@ -3329,7 +3333,7 @@ static int it6505_i2c_probe(struct i2c_client *client,
 	INIT_WORK(&it6505->link_works, it6505_link_training_work);
 	INIT_WORK(&it6505->hdcp_wait_ksv_list, it6505_hdcp_wait_ksv_list);
 	INIT_DELAYED_WORK(&it6505->hdcp_work, it6505_hdcp_work);
-	init_completion(&it6505->wait_edid_complete);
+	init_completion(&it6505->extcon_completion);
 	memset(it6505->dpcd, 0, sizeof(it6505->dpcd));
 	it6505->powered = false;
 	it6505->enable_drv_hold = DEFAULT_DRV_HOLD;