disp: msm: dp: Add event logs for HDCP sessions

Add event logs to capture HDCP state transitions and errors.

Change-Id: Id82049b93eb2e8bf84faddebaa0959f8cda1c91f
Signed-off-by: poyewu <poyewu@codeaurora.org>

msm/dp/dp_display.c

@@ -415,6 +415,7 @@ static void dp_display_hdcp_process_delayed_off(struct dp_display_private *dp)
 static int dp_display_hdcp_process_sink_sync(struct dp_display_private *dp)
 {
 	u8 sink_status = 0;
+	SDE_EVT32_EXTERNAL(SDE_EVTLOG_FUNC_ENTRY);
 
 	if (dp->debug->hdcp_wait_sink_sync) {
 		drm_dp_dpcd_readb(dp->aux->drm_aux, DP_SINK_STATUS,
@@ -433,6 +434,7 @@ static int dp_display_hdcp_process_sink_sync(struct dp_display_private *dp)
 		 */
 		msleep(6000);
 	}
+	SDE_EVT32_EXTERNAL(SDE_EVTLOG_FUNC_EXIT);
 
 	return 0;
 }
@@ -579,6 +581,8 @@ static void dp_display_notify_hdcp_status_cb(void *ptr,
 		enum sde_hdcp_state state)
 {
 	struct dp_display_private *dp = ptr;
+	SDE_EVT32_EXTERNAL(SDE_EVTLOG_FUNC_ENTRY,
+					dp->link->hdcp_status.hdcp_state);
 
 	if (!dp) {
 		DP_ERR("invalid input\n");
@@ -588,6 +592,8 @@ static void dp_display_notify_hdcp_status_cb(void *ptr,
 	dp->link->hdcp_status.hdcp_state = state;
 
 	queue_delayed_work(dp->wq, &dp->hdcp_cb_work, HZ/4);
+	SDE_EVT32_EXTERNAL(SDE_EVTLOG_FUNC_EXIT,
+					dp->link->hdcp_status.hdcp_state);
 }
 
 static void dp_display_deinitialize_hdcp(struct dp_display_private *dp)