soundwire: bus: add better dev_dbg to track complete() calls

Add a dev_dbg() log for both enumeration and initialization completion
to better track suspend-resume issues.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

drivers/soundwire/bus.c

@@ -800,7 +800,7 @@ static void sdw_modify_slave_status(struct sdw_slave *slave,
 
 	if (status == SDW_SLAVE_UNATTACHED) {
 		dev_dbg(&slave->dev,
-			"%s: initializing completion for Slave %d\n",
+			"%s: initializing enumeration and init completion for Slave %d\n",
 			__func__, slave->dev_num);
 
 		init_completion(&slave->enumeration_complete);
@@ -809,7 +809,7 @@ static void sdw_modify_slave_status(struct sdw_slave *slave,
 	} else if ((status == SDW_SLAVE_ATTACHED) &&
 		   (slave->status == SDW_SLAVE_UNATTACHED)) {
 		dev_dbg(&slave->dev,
-			"%s: signaling completion for Slave %d\n",
+			"%s: signaling enumeration completion for Slave %d\n",
 			__func__, slave->dev_num);
 
 		complete(&slave->enumeration_complete);
@@ -1784,8 +1784,13 @@ int sdw_handle_slave_status(struct sdw_bus *bus,
 		if (ret)
 			dev_err(&slave->dev,
 				"Update Slave status failed:%d\n", ret);
-		if (attached_initializing)
+		if (attached_initializing) {
+			dev_dbg(&slave->dev,
+				"%s: signaling initialization completion for Slave %d\n",
+				__func__, slave->dev_num);
+
 			complete(&slave->initialization_complete);
+		}
 	}
 
 	return ret;