disp: msm: dp: use the new altmode framework

Use the new altmode framework to receive the connect, disconnect
and attention events.

Change-Id: Ic542525b526e1abd0f153c293bca6e4cdbb6bf0b
Signed-off-by: Tatenda Chipeperekwa <tatendac@codeaurora.org>

msm/dp/dp_debug.c

@@ -14,6 +14,7 @@
 #include "sde_connector.h"
 #include "dp_display.h"
 #include "dp_pll.h"
+#include "dp_hpd.h"
 
 #define DEBUG_NAME "drm_dp"
 
@@ -2151,6 +2152,15 @@ static int dp_debug_init_sim(struct dp_debug_private *debug, struct dentry *dir)
 		return rc;
 	}
 
+	file = debugfs_create_bool("force_multi_func", 0644, dir,
+			&debug->hpd->force_multi_func);
+	if (IS_ERR_OR_NULL(file)) {
+		rc = PTR_ERR(file);
+		DP_ERR("[%s] debugfs force_multi_func failed, rc=%d\n",
+		       DEBUG_NAME, rc);
+		return rc;
+	}
+
 	return rc;
 }