2 files changed, 23 insertions, 0 deletions
diff --git a/drivers/staging/greybus/control.c b/drivers/staging/greybus/control.c
index 55bb465e16f1..37a30b3075ce 100644
--- a/drivers/staging/greybus/control.c
+++ b/drivers/staging/greybus/control.c
@@ -546,6 +546,27 @@ void gb_control_disable(struct gb_control *control)
 		gb_connection_disable(control->connection);
 }
 
+int gb_control_suspend(struct gb_control *control)
+{
+	gb_connection_disable(control->connection);
+
+	return 0;
+}
+
+int gb_control_resume(struct gb_control *control)
+{
+	int ret;
+
+	ret = gb_connection_enable_tx(control->connection);
+	if (ret) {
+		dev_err(&control->connection->intf->dev,
+			"failed to enable control connection: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
 int gb_control_add(struct gb_control *control)
 {
 	int ret;
diff --git a/drivers/staging/greybus/control.h b/drivers/staging/greybus/control.h
index 86a4902604b6..f73ec3e297ba 100644
--- a/drivers/staging/greybus/control.h
+++ b/drivers/staging/greybus/control.h
@@ -29,6 +29,8 @@ struct gb_control {
 struct gb_control *gb_control_create(struct gb_interface *intf);
 int gb_control_enable(struct gb_control *control);
 void gb_control_disable(struct gb_control *control);
+int gb_control_suspend(struct gb_control *control);
+int gb_control_resume(struct gb_control *control);
 int gb_control_add(struct gb_control *control);
 void gb_control_del(struct gb_control *control);
 struct gb_control *gb_control_get(struct gb_control *control);