diff --git a/drivers/dma/idxd/init.c b/drivers/dma/idxd/init.c
index 2a926bef87f2ac8b19a246244a478987e3750bc9..ec7305f86bf7420fae989eb5354ba91b50e1c724 100644
--- a/drivers/dma/idxd/init.c
+++ b/drivers/dma/idxd/init.c
@@ -242,6 +242,7 @@ static int idxd_setup_engines(struct idxd_device *idxd)
 		engine->idxd = idxd;
 		device_initialize(&engine->conf_dev);
 		engine->conf_dev.parent = &idxd->conf_dev;
+		engine->conf_dev.bus = &dsa_bus_type;
 		engine->conf_dev.type = &idxd_engine_device_type;
 		rc = dev_set_name(&engine->conf_dev, "engine%d.%d", idxd->id, engine->id);
 		if (rc < 0) {