20 int i2c_slave_register(struct i2c_client *client, i2c_slave_cb_t slave_cb)  in i2c_slave_register()  argument
24 	if (WARN(IS_ERR_OR_NULL(client) || !slave_cb, "insufficient data\n"))  in i2c_slave_register()
27 	if (!(client->flags & I2C_CLIENT_SLAVE))  in i2c_slave_register()
28 		dev_warn(&client->dev, "%s: client slave flag not set. You might see address collisions\n",  in i2c_slave_register()
31 	if (!(client->flags & I2C_CLIENT_TEN)) {  in i2c_slave_register()
33 		ret = i2c_check_7bit_addr_validity_strict(client->addr);  in i2c_slave_register()
35 			dev_err(&client->dev, "%s: invalid address\n", __func__);  in i2c_slave_register()
40 	if (!client->adapter->algo->reg_slave) {  in i2c_slave_register()
41 		dev_err(&client->dev, "%s: not supported by adapter\n", __func__);  in i2c_slave_register()
45 	client->slave_cb = slave_cb;  in i2c_slave_register()
47 	i2c_lock_bus(client->adapter, I2C_LOCK_ROOT_ADAPTER);  in i2c_slave_register()
48 	ret = client->adapter->algo->reg_slave(client);  in i2c_slave_register()
49 	i2c_unlock_bus(client->adapter, I2C_LOCK_ROOT_ADAPTER);  in i2c_slave_register()
52 		client->slave_cb = NULL;  in i2c_slave_register()
53 		dev_err(&client->dev, "%s: adapter returned error %d\n", __func__, ret);  in i2c_slave_register()
60 int i2c_slave_unregister(struct i2c_client *client)  in i2c_slave_unregister()  argument
64 	if (IS_ERR_OR_NULL(client))  in i2c_slave_unregister()
67 	if (!client->adapter->algo->unreg_slave) {  in i2c_slave_unregister()
68 		dev_err(&client->dev, "%s: not supported by adapter\n", __func__);  in i2c_slave_unregister()
72 	i2c_lock_bus(client->adapter, I2C_LOCK_ROOT_ADAPTER);  in i2c_slave_unregister()
73 	ret = client->adapter->algo->unreg_slave(client);  in i2c_slave_unregister()
74 	i2c_unlock_bus(client->adapter, I2C_LOCK_ROOT_ADAPTER);  in i2c_slave_unregister()
77 		client->slave_cb = NULL;  in i2c_slave_unregister()
79 		dev_err(&client->dev, "%s: adapter returned error %d\n", __func__, ret);  in i2c_slave_unregister()
85 int i2c_slave_event(struct i2c_client *client,  in i2c_slave_event()  argument
88 	int ret = client->slave_cb(client, event, val);  in i2c_slave_event()
91 		trace_i2c_slave(client, event, val, ret);  in i2c_slave_event()