greybus: interface: separate manifest parsing from bundle registration

Separate manifest parsing, including bundle and connection creation,
from bundle registration.

Note that this is also needed to allow the interface to not be
registered until the manifest has been parsed.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

drivers/staging/greybus/interface.c

@@ -162,6 +162,7 @@ void gb_interfaces_remove(struct gb_host_device *hd)
  */
 int gb_interface_init(struct gb_interface *intf, u8 device_id)
 {
+	struct gb_bundle *bundle, *tmp;
 	struct gb_connection *connection;
 	int ret, size;
 	void *manifest;
@@ -215,14 +216,25 @@ int gb_interface_init(struct gb_interface *intf, u8 device_id)
 		goto free_manifest;
 	}
 
-	/*
-	 * XXX
-	 * We've successfully parsed the manifest.  Now we need to
-	 * allocate CPort Id's for connecting to the CPorts found on
-	 * other modules.  For each of these, establish a connection
-	 * between the local and remote CPorts (including
-	 * configuring the switch to allow them to communicate).
-	 */
+	/* Register the interface bundles. */
+	list_for_each_entry_safe_reverse(bundle, tmp, &intf->bundles, links) {
+		ret = gb_bundle_add(bundle);
+		if (ret) {
+			gb_bundle_destroy(bundle);
+			continue;
+		}
+
+		list_for_each_entry(connection, &bundle->connections,
+							bundle_links) {
+			ret = gb_connection_init(connection);
+			if (ret)
+				break;
+		}
+		if (ret)
+			gb_bundle_destroy(bundle);
+	}
+
+	ret = 0;
 
 free_manifest:
 	kfree(manifest);

drivers/staging/greybus/manifest.c

@@ -286,14 +286,12 @@ static u32 gb_manifest_parse_cports(struct gb_bundle *bundle)
  */
 static u32 gb_manifest_parse_bundles(struct gb_interface *intf)
 {
-	struct gb_connection *connection;
 	struct manifest_desc *desc;
 	struct gb_bundle *bundle;
 	struct gb_bundle *bundle_next;
 	u32 count = 0;
 	u8 bundle_id;
 	u8 class;
-	int ret;
 
 	while ((desc = get_next_bundle_desc(intf))) {
 		struct greybus_descriptor_bundle *desc_bundle;
@@ -349,23 +347,6 @@ static u32 gb_manifest_parse_bundles(struct gb_interface *intf)
 			continue;
 		}
 
-		ret = gb_bundle_add(bundle);
-		if (ret) {
-			gb_bundle_destroy(bundle);
-			continue;
-		}
-
-		list_for_each_entry(connection, &bundle->connections,
-							bundle_links) {
-			ret = gb_connection_init(connection);
-			if (ret)
-				break;
-		}
-		if (ret) {
-			gb_bundle_destroy(bundle);
-			continue;
-		}
-
 		count++;
 	}