4 files changed, 22 insertions, 2 deletions
diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c
index e3fe53f38708..f4c7887c3234 100644
--- a/drivers/soundwire/bus.c
+++ b/drivers/soundwire/bus.c
@@ -747,6 +747,15 @@ static int sdw_program_device_num(struct sdw_bus *bus)
 
 		if (!found) {
 			/* TODO: Park this device in Group 13 */
+
+			/*
+			 * add Slave device even if there is no platform
+			 * firmware description. There will be no driver probe
+			 * but the user/integration will be able to see the
+			 * device, enumeration status and device number in sysfs
+			 */
+			sdw_slave_add(bus, &id, NULL);
+
 			dev_err(bus->dev, "Slave Entry not found\n");
 		}
 
diff --git a/drivers/soundwire/bus.h b/drivers/soundwire/bus.h
index e0703991aad9..2e049d39c6e5 100644
--- a/drivers/soundwire/bus.h
+++ b/drivers/soundwire/bus.h
@@ -19,6 +19,8 @@ static inline int sdw_acpi_find_slaves(struct sdw_bus *bus)
 int sdw_of_find_slaves(struct sdw_bus *bus);
 void sdw_extract_slave_id(struct sdw_bus *bus,
 			  u64 addr, struct sdw_slave_id *id);
+int sdw_slave_add(struct sdw_bus *bus, struct sdw_slave_id *id,
+		  struct fwnode_handle *fwnode);
 int sdw_master_device_add(struct sdw_bus *bus, struct device *parent,
 			  struct fwnode_handle *fwnode);
 int sdw_master_device_del(struct sdw_bus *bus);
diff --git a/drivers/soundwire/bus_type.c b/drivers/soundwire/bus_type.c
index 6fba55898cf0..575b9bad99d5 100644
--- a/drivers/soundwire/bus_type.c
+++ b/drivers/soundwire/bus_type.c
@@ -84,6 +84,15 @@ static int sdw_drv_probe(struct device *dev)
 	const struct sdw_device_id *id;
 	int ret;
 
+	/*
+	 * fw description is mandatory to bind
+	 */
+	if (!dev->fwnode)
+		return -ENODEV;
+
+	if (!IS_ENABLED(CONFIG_ACPI) && !dev->of_node)
+		return -ENODEV;
+
 	id = sdw_get_device_id(slave, drv);
 	if (!id)
 		return -ENODEV;
diff --git a/drivers/soundwire/slave.c b/drivers/soundwire/slave.c
index 4a250d33de5d..19b012310c29 100644
--- a/drivers/soundwire/slave.c
+++ b/drivers/soundwire/slave.c
@@ -20,8 +20,8 @@ struct device_type sdw_slave_type = {
 	.uevent =	sdw_slave_uevent,
 };
 
-static int sdw_slave_add(struct sdw_bus *bus,
-			 struct sdw_slave_id *id, struct fwnode_handle *fwnode)
+int sdw_slave_add(struct sdw_bus *bus,
+		  struct sdw_slave_id *id, struct fwnode_handle *fwnode)
 {
 	struct sdw_slave *slave;
 	int ret;