I3C for 6.2

Subsystem:
  - API changes
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Merge tag 'i3c/for-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux

Pull i3c updates from Alexandre Belloni:
 "A non-urgent fix and SETDASA is now exported to drivers"

* tag 'i3c/for-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
  MAINTAINERS: mark I3C DRIVER FOR SYNOPSYS DESIGNWARE orphan
  i3c: export SETDASA method
  i3c: Correct the macro module_i3c_i2c_driver

MAINTAINERS

@@ -9770,8 +9770,7 @@ F:	Documentation/devicetree/bindings/i3c/cdns,i3c-master.yaml
 F:	drivers/i3c/master/i3c-master-cdns.c
 
 I3C DRIVER FOR SYNOPSYS DESIGNWARE
-M:	Vitor Soares <vitor.soares@synopsys.com>
-S:	Maintained
+S:	Orphan
 F:	Documentation/devicetree/bindings/i3c/snps,dw-i3c-master.yaml
 F:	drivers/i3c/master/dw*
 

drivers/i3c/device.c

@@ -50,6 +50,26 @@ int i3c_device_do_priv_xfers(struct i3c_device *dev,
 }
 EXPORT_SYMBOL_GPL(i3c_device_do_priv_xfers);
 
+/**
+ * i3c_device_do_setdasa() - do I3C dynamic address assignement with
+ *                           static address
+ *
+ * @dev: device with which the DAA should be done
+ *
+ * Return: 0 in case of success, a negative error core otherwise.
+ */
+int i3c_device_do_setdasa(struct i3c_device *dev)
+{
+	int ret;
+
+	i3c_bus_normaluse_lock(dev->bus);
+	ret = i3c_dev_setdasa_locked(dev->desc);
+	i3c_bus_normaluse_unlock(dev->bus);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(i3c_device_do_setdasa);
+
 /**
  * i3c_device_get_info() - get I3C device information
  *

drivers/i3c/internals.h

@@ -15,6 +15,7 @@ extern struct bus_type i3c_bus_type;
 void i3c_bus_normaluse_lock(struct i3c_bus *bus);
 void i3c_bus_normaluse_unlock(struct i3c_bus *bus);
 
+int i3c_dev_setdasa_locked(struct i3c_dev_desc *dev);
 int i3c_dev_do_priv_xfers_locked(struct i3c_dev_desc *dev,
 				 struct i3c_priv_xfer *xfers,
 				 int nxfers);

drivers/i3c/master.c

@@ -2708,6 +2708,25 @@ int i3c_master_unregister(struct i3c_master_controller *master)
 }
 EXPORT_SYMBOL_GPL(i3c_master_unregister);
 
+int i3c_dev_setdasa_locked(struct i3c_dev_desc *dev)
+{
+	struct i3c_master_controller *master;
+
+	if (!dev)
+		return -ENOENT;
+
+	master = i3c_dev_get_master(dev);
+	if (!master)
+		return -EINVAL;
+
+	if (!dev->boardinfo || !dev->boardinfo->init_dyn_addr ||
+		!dev->boardinfo->static_addr)
+		return -EINVAL;
+
+	return i3c_master_setdasa_locked(master, dev->info.static_addr,
+						dev->boardinfo->init_dyn_addr);
+}
+
 int i3c_dev_do_priv_xfers_locked(struct i3c_dev_desc *dev,
 				 struct i3c_priv_xfer *xfers,
 				 int nxfers)

include/linux/i3c/device.h

@@ -287,12 +287,15 @@ static inline void i3c_i2c_driver_unregister(struct i3c_driver *i3cdrv,
 #define module_i3c_i2c_driver(__i3cdrv, __i2cdrv)	\
 	module_driver(__i3cdrv,				\
 		      i3c_i2c_driver_register,		\
-		      i3c_i2c_driver_unregister)
+		      i3c_i2c_driver_unregister,	\
+		      __i2cdrv)
 
 int i3c_device_do_priv_xfers(struct i3c_device *dev,
 			     struct i3c_priv_xfer *xfers,
 			     int nxfers);
 
+int i3c_device_do_setdasa(struct i3c_device *dev);
+
 void i3c_device_get_info(struct i3c_device *dev, struct i3c_device_info *info);
 
 struct i3c_ibi_payload {