greybus: connection: unconditionally enable connections

Remove conditional enabling of connections when binding protocols that
served no purpose as a connection either has no bundle or it has an
interface with a valid device id.

Also remove the now unused GB_PROTOCOL_NO_BUNDLE protocol flag.

This is an intermediate step in moving the protocol binding to
connection_init, but is also needed as the control bundle is going away.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

drivers/staging/greybus/connection.c

@@ -541,19 +541,11 @@ int gb_connection_bind_protocol(struct gb_connection *connection)
 	}
 	connection->protocol = protocol;
 
-	/*
-	 * If we have a valid device_id for the interface block, then we have an
-	 * active device, so bring up the connection at the same time.
-	 */
-	if ((!connection->bundle &&
-	     protocol->flags & GB_PROTOCOL_NO_BUNDLE) ||
-	    connection->bundle->intf->device_id != GB_DEVICE_ID_BAD) {
-		ret = gb_connection_init(connection);
-		if (ret) {
-			gb_protocol_put(protocol);
-			connection->protocol = NULL;
-			return ret;
-		}
+	ret = gb_connection_init(connection);
+	if (ret) {
+		gb_protocol_put(protocol);
+		connection->protocol = NULL;
+		return ret;
 	}
 
 	return 0;

drivers/staging/greybus/protocol.h

@@ -16,7 +16,6 @@ struct gb_operation;
 /* Possible flags for protocol drivers */
 #define GB_PROTOCOL_SKIP_CONTROL_CONNECTED	BIT(0)	/* Don't sent connected requests */
 #define GB_PROTOCOL_SKIP_CONTROL_DISCONNECTED	BIT(1)	/* Don't sent disconnected requests */
-#define GB_PROTOCOL_NO_BUNDLE			BIT(2)	/* Protocol May have a bundle-less connection */
 #define GB_PROTOCOL_SKIP_VERSION		BIT(3)	/* Don't send get_version() requests */
 
 typedef int (*gb_connection_init_t)(struct gb_connection *);

drivers/staging/greybus/svc.c

@@ -678,7 +678,6 @@ static struct gb_protocol svc_protocol = {
 	.request_recv		= gb_svc_request_recv,
 	.flags			= GB_PROTOCOL_SKIP_CONTROL_CONNECTED |
 				  GB_PROTOCOL_SKIP_CONTROL_DISCONNECTED |
-				  GB_PROTOCOL_NO_BUNDLE |
 				  GB_PROTOCOL_SKIP_VERSION,
 };
 gb_builtin_protocol_driver(svc_protocol);