diff options
| -rw-r--r-- | drivers/soundwire/bus.c | 9 | ||||
| -rw-r--r-- | drivers/soundwire/bus.h | 2 | ||||
| -rw-r--r-- | drivers/soundwire/bus_type.c | 9 | ||||
| -rw-r--r-- | drivers/soundwire/slave.c | 4 |
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; |