231 static int acpi_gsb_i2c_read_bytes(struct i2c_client *client,  in acpi_gsb_i2c_read_bytes()  argument
243 	msgs[0].addr = client->addr;  in acpi_gsb_i2c_read_bytes()
244 	msgs[0].flags = client->flags;  in acpi_gsb_i2c_read_bytes()
248 	msgs[1].addr = client->addr;  in acpi_gsb_i2c_read_bytes()
249 	msgs[1].flags = client->flags | I2C_M_RD;  in acpi_gsb_i2c_read_bytes()
253 	ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));  in acpi_gsb_i2c_read_bytes()
255 		dev_err(&client->adapter->dev, "i2c read failed\n");  in acpi_gsb_i2c_read_bytes()
263 static int acpi_gsb_i2c_write_bytes(struct i2c_client *client,  in acpi_gsb_i2c_write_bytes()  argument
278 	msgs[0].addr = client->addr;  in acpi_gsb_i2c_write_bytes()
279 	msgs[0].flags = client->flags;  in acpi_gsb_i2c_write_bytes()
283 	ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));  in acpi_gsb_i2c_write_bytes()
285 		dev_err(&client->adapter->dev, "i2c write failed\n");  in acpi_gsb_i2c_write_bytes()
301 	struct i2c_client *client;  in acpi_i2c_space_handler()  local
312 	client = kzalloc(sizeof(*client), GFP_KERNEL);  in acpi_i2c_space_handler()
313 	if (!client) {  in acpi_i2c_space_handler()
329 	client->adapter = adapter;  in acpi_i2c_space_handler()
330 	client->addr = sb->slave_address;  in acpi_i2c_space_handler()
333 		client->flags |= I2C_CLIENT_TEN;  in acpi_i2c_space_handler()
338 			status = i2c_smbus_read_byte(client);  in acpi_i2c_space_handler()
344 			status = i2c_smbus_write_byte(client, gsb->bdata);  in acpi_i2c_space_handler()
350 			status = i2c_smbus_read_byte_data(client, command);  in acpi_i2c_space_handler()
356 			status = i2c_smbus_write_byte_data(client, command,  in acpi_i2c_space_handler()
363 			status = i2c_smbus_read_word_data(client, command);  in acpi_i2c_space_handler()
369 			status = i2c_smbus_write_word_data(client, command,  in acpi_i2c_space_handler()
376 			status = i2c_smbus_read_block_data(client, command,  in acpi_i2c_space_handler()
383 			status = i2c_smbus_write_block_data(client, command,  in acpi_i2c_space_handler()
390 			status = acpi_gsb_i2c_read_bytes(client, command,  in acpi_i2c_space_handler()
395 			status = acpi_gsb_i2c_write_bytes(client, command,  in acpi_i2c_space_handler()
409 	kfree(client);  in acpi_i2c_space_handler()
492 						const struct i2c_client *client)  in i2c_match_id()  argument
495 		if (strcmp(client->name, id->name) == 0)  in i2c_match_id()
504 	struct i2c_client	*client = i2c_verify_client(dev);  in i2c_device_match()  local
507 	if (!client)  in i2c_device_match()
521 		return i2c_match_id(driver->id_table, client) != NULL;  in i2c_device_match()
530 	struct i2c_client	*client = to_i2c_client(dev);  in i2c_device_uevent()  local
538 			   I2C_MODULE_PREFIX, client->name))  in i2c_device_uevent()
675 	struct i2c_client	*client = i2c_verify_client(dev);  in i2c_device_probe()  local
679 	if (!client)  in i2c_device_probe()
682 	if (!client->irq) {  in i2c_device_probe()
697 		client->irq = irq;  in i2c_device_probe()
704 	if (client->flags & I2C_CLIENT_WAKE) {  in i2c_device_probe()
713 		device_init_wakeup(&client->dev, true);  in i2c_device_probe()
715 		if (wakeirq > 0 && wakeirq != client->irq)  in i2c_device_probe()
717 		else if (client->irq > 0)  in i2c_device_probe()
718 			status = dev_pm_set_wake_irq(dev, client->irq);  in i2c_device_probe()
723 			dev_warn(&client->dev, "failed to set up wakeup irq");  in i2c_device_probe()
732 	status = dev_pm_domain_attach(&client->dev, true);  in i2c_device_probe()
736 	status = driver->probe(client, i2c_match_id(driver->id_table, client));  in i2c_device_probe()
743 	dev_pm_domain_detach(&client->dev, true);  in i2c_device_probe()
745 	dev_pm_clear_wake_irq(&client->dev);  in i2c_device_probe()
746 	device_init_wakeup(&client->dev, false);  in i2c_device_probe()
752 	struct i2c_client	*client = i2c_verify_client(dev);  in i2c_device_remove()  local
756 	if (!client || !dev->driver)  in i2c_device_remove()
762 		status = driver->remove(client);  in i2c_device_remove()
765 	dev_pm_domain_detach(&client->dev, true);  in i2c_device_remove()
767 	dev_pm_clear_wake_irq(&client->dev);  in i2c_device_remove()
768 	device_init_wakeup(&client->dev, false);  in i2c_device_remove()
775 	struct i2c_client *client = i2c_verify_client(dev);  in i2c_device_shutdown()  local
778 	if (!client || !dev->driver)  in i2c_device_shutdown()
782 		driver->shutdown(client);  in i2c_device_shutdown()
801 	struct i2c_client *client = to_i2c_client(dev);  in show_modalias()  local
808 	return sprintf(buf, "%s%s\n", I2C_MODULE_PREFIX, client->name);  in show_modalias()
855 static unsigned short i2c_encode_flags_to_addr(struct i2c_client *client)  in i2c_encode_flags_to_addr()  argument
857 	unsigned short addr = client->addr;  in i2c_encode_flags_to_addr()
860 	if (client->flags & I2C_CLIENT_TEN)  in i2c_encode_flags_to_addr()
863 	if (client->flags & I2C_CLIENT_SLAVE)  in i2c_encode_flags_to_addr()
908 	struct i2c_client	*client = i2c_verify_client(dev);  in __i2c_check_addr_busy()  local
911 	if (client && i2c_encode_flags_to_addr(client) == addr)  in __i2c_check_addr_busy()
1005 			     struct i2c_client *client)  in i2c_dev_set_name()  argument
1007 	struct acpi_device *adev = ACPI_COMPANION(&client->dev);  in i2c_dev_set_name()
1010 		dev_set_name(&client->dev, "i2c-%s", acpi_dev_name(adev));  in i2c_dev_set_name()
1014 	dev_set_name(&client->dev, "%d-%04x", i2c_adapter_id(adap),  in i2c_dev_set_name()
1015 		     i2c_encode_flags_to_addr(client));  in i2c_dev_set_name()
1037 	struct i2c_client	*client;  in i2c_new_device()  local
1040 	client = kzalloc(sizeof *client, GFP_KERNEL);  in i2c_new_device()
1041 	if (!client)  in i2c_new_device()
1044 	client->adapter = adap;  in i2c_new_device()
1046 	client->dev.platform_data = info->platform_data;  in i2c_new_device()
1049 		client->dev.archdata = *info->archdata;  in i2c_new_device()
1051 	client->flags = info->flags;  in i2c_new_device()
1052 	client->addr = info->addr;  in i2c_new_device()
1053 	client->irq = info->irq;  in i2c_new_device()
1055 	strlcpy(client->name, info->type, sizeof(client->name));  in i2c_new_device()
1057 	status = i2c_check_addr_validity(client->addr, client->flags);  in i2c_new_device()
1060 			client->flags & I2C_CLIENT_TEN ? 10 : 7, client->addr);  in i2c_new_device()
1065 	status = i2c_check_addr_busy(adap, i2c_encode_flags_to_addr(client));  in i2c_new_device()
1069 	client->dev.parent = &client->adapter->dev;  in i2c_new_device()
1070 	client->dev.bus = &i2c_bus_type;  in i2c_new_device()
1071 	client->dev.type = &i2c_client_type;  in i2c_new_device()
1072 	client->dev.of_node = info->of_node;  in i2c_new_device()
1073 	client->dev.fwnode = info->fwnode;  in i2c_new_device()
1075 	i2c_dev_set_name(adap, client);  in i2c_new_device()
1076 	status = device_register(&client->dev);  in i2c_new_device()
1081 		client->name, dev_name(&client->dev));  in i2c_new_device()
1083 	return client;  in i2c_new_device()
1087 		"(%d)\n", client->name, client->addr, status);  in i2c_new_device()
1089 	kfree(client);  in i2c_new_device()
1100 void i2c_unregister_device(struct i2c_client *client)  in i2c_unregister_device()  argument
1102 	if (client->dev.of_node)  in i2c_unregister_device()
1103 		of_node_clear_flag(client->dev.of_node, OF_POPULATED);  in i2c_unregister_device()
1104 	device_unregister(&client->dev);  in i2c_unregister_device()
1114 static int dummy_probe(struct i2c_client *client,  in dummy_probe()  argument
1120 static int dummy_remove(struct i2c_client *client)  in dummy_remove()  argument
1202 	struct i2c_client *client;  in i2c_sysfs_new_device()  local
1240 	client = i2c_new_device(adap, &info);  in i2c_sysfs_new_device()
1241 	if (!client)  in i2c_sysfs_new_device()
1246 	list_add_tail(&client->detected, &adap->userspace_clients);  in i2c_sysfs_new_device()
1269 	struct i2c_client *client, *next;  in i2c_sysfs_delete_device()  local
1289 	list_for_each_entry_safe(client, next, &adap->userspace_clients,  in i2c_sysfs_delete_device()
1291 		if (i2c_encode_flags_to_addr(client) == addr) {  in i2c_sysfs_delete_device()
1293 				 "delete_device", client->name, client->addr);  in i2c_sysfs_delete_device()
1295 			list_del(&client->detected);  in i2c_sysfs_delete_device()
1296 			i2c_unregister_device(client);  in i2c_sysfs_delete_device()
1450 	struct i2c_client *client;  in of_find_i2c_device_by_node()  local
1456 	client = i2c_verify_client(dev);  in of_find_i2c_device_by_node()
1457 	if (!client)  in of_find_i2c_device_by_node()
1460 	return client;  in of_find_i2c_device_by_node()
1726 	struct i2c_client *client, *_n;  in i2c_do_del_adapter()  local
1730 	list_for_each_entry_safe(client, _n, &driver->clients, detected) {  in i2c_do_del_adapter()
1731 		if (client->adapter == adapter) {  in i2c_do_del_adapter()
1733 				client->name, client->addr);  in i2c_do_del_adapter()
1734 			list_del(&client->detected);  in i2c_do_del_adapter()
1735 			i2c_unregister_device(client);  in i2c_do_del_adapter()
1742 	struct i2c_client *client = i2c_verify_client(dev);  in __unregister_client()  local
1743 	if (client && strcmp(client->name, "dummy"))  in __unregister_client()
1744 		i2c_unregister_device(client);  in __unregister_client()
1750 	struct i2c_client *client = i2c_verify_client(dev);  in __unregister_dummy()  local
1751 	if (client)  in __unregister_dummy()
1752 		i2c_unregister_device(client);  in __unregister_dummy()
1773 	struct i2c_client *client, *next;  in i2c_del_adapter()  local
1795 	list_for_each_entry_safe(client, next, &adap->userspace_clients,  in i2c_del_adapter()
1797 		dev_dbg(&adap->dev, "Removing %s at 0x%x\n", client->name,  in i2c_del_adapter()
1798 			client->addr);  in i2c_del_adapter()
1799 		list_del(&client->detected);  in i2c_del_adapter()
1800 		i2c_unregister_device(client);  in i2c_del_adapter()
1931 struct i2c_client *i2c_use_client(struct i2c_client *client)  in i2c_use_client()  argument
1933 	if (client && get_device(&client->dev))  in i2c_use_client()
1934 		return client;  in i2c_use_client()
1945 void i2c_release_client(struct i2c_client *client)  in i2c_release_client()  argument
1947 	if (client)  in i2c_release_client()
1948 		put_device(&client->dev);  in i2c_release_client()
1959 	struct i2c_client	*client = i2c_verify_client(dev);  in i2c_cmd()  local
1963 	if (!client || !client->dev.driver)  in i2c_cmd()
1966 	driver = to_i2c_driver(client->dev.driver);  in i2c_cmd()
1968 		driver->command(client, arg->cmd, arg->arg);  in i2c_cmd()
1988 	struct i2c_client *client;  in of_i2c_notify()  local
2001 		client = of_i2c_register_device(adap, rd->dn);  in of_i2c_notify()
2004 		if (IS_ERR(client)) {  in of_i2c_notify()
2007 			return notifier_from_errno(PTR_ERR(client));  in of_i2c_notify()
2016 		client = of_find_i2c_device_by_node(rd->dn);  in of_i2c_notify()
2017 		if (client == NULL)  in of_i2c_notify()
2021 		i2c_unregister_device(client);  in of_i2c_notify()
2024 		put_device(&client->dev);  in of_i2c_notify()
2284 int i2c_master_send(const struct i2c_client *client, const char *buf, int count)  in i2c_master_send()  argument
2287 	struct i2c_adapter *adap = client->adapter;  in i2c_master_send()
2290 	msg.addr = client->addr;  in i2c_master_send()
2291 	msg.flags = client->flags & I2C_M_TEN;  in i2c_master_send()
2313 int i2c_master_recv(const struct i2c_client *client, char *buf, int count)  in i2c_master_recv()  argument
2315 	struct i2c_adapter *adap = client->adapter;  in i2c_master_recv()
2319 	msg.addr = client->addr;  in i2c_master_recv()
2320 	msg.flags = client->flags & I2C_M_TEN;  in i2c_master_recv()
2421 		struct i2c_client *client;  in i2c_detect_address()  local
2433 		client = i2c_new_device(adapter, &info);  in i2c_detect_address()
2434 		if (client)  in i2c_detect_address()
2435 			list_add_tail(&client->detected, &driver->clients);  in i2c_detect_address()
2633 s32 i2c_smbus_read_byte(const struct i2c_client *client)  in i2c_smbus_read_byte()  argument
2638 	status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,  in i2c_smbus_read_byte()
2653 s32 i2c_smbus_write_byte(const struct i2c_client *client, u8 value)  in i2c_smbus_write_byte()  argument
2655 	return i2c_smbus_xfer(client->adapter, client->addr, client->flags,  in i2c_smbus_write_byte()
2668 s32 i2c_smbus_read_byte_data(const struct i2c_client *client, u8 command)  in i2c_smbus_read_byte_data()  argument
2673 	status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,  in i2c_smbus_read_byte_data()
2689 s32 i2c_smbus_write_byte_data(const struct i2c_client *client, u8 command,  in i2c_smbus_write_byte_data()  argument
2694 	return i2c_smbus_xfer(client->adapter, client->addr, client->flags,  in i2c_smbus_write_byte_data()
2708 s32 i2c_smbus_read_word_data(const struct i2c_client *client, u8 command)  in i2c_smbus_read_word_data()  argument
2713 	status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,  in i2c_smbus_read_word_data()
2729 s32 i2c_smbus_write_word_data(const struct i2c_client *client, u8 command,  in i2c_smbus_write_word_data()  argument
2734 	return i2c_smbus_xfer(client->adapter, client->addr, client->flags,  in i2c_smbus_write_word_data()
2755 s32 i2c_smbus_read_block_data(const struct i2c_client *client, u8 command,  in i2c_smbus_read_block_data()  argument
2761 	status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,  in i2c_smbus_read_block_data()
2782 s32 i2c_smbus_write_block_data(const struct i2c_client *client, u8 command,  in i2c_smbus_write_block_data()  argument
2791 	return i2c_smbus_xfer(client->adapter, client->addr, client->flags,  in i2c_smbus_write_block_data()
2798 s32 i2c_smbus_read_i2c_block_data(const struct i2c_client *client, u8 command,  in i2c_smbus_read_i2c_block_data()  argument
2807 	status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,  in i2c_smbus_read_i2c_block_data()
2818 s32 i2c_smbus_write_i2c_block_data(const struct i2c_client *client, u8 command,  in i2c_smbus_write_i2c_block_data()  argument
2827 	return i2c_smbus_xfer(client->adapter, client->addr, client->flags,  in i2c_smbus_write_i2c_block_data()
3098 s32 i2c_smbus_read_i2c_block_data_or_emulated(const struct i2c_client *client,  in i2c_smbus_read_i2c_block_data_or_emulated()  argument
3107 	if (i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_READ_I2C_BLOCK))  in i2c_smbus_read_i2c_block_data_or_emulated()
3108 		return i2c_smbus_read_i2c_block_data(client, command, length, values);  in i2c_smbus_read_i2c_block_data_or_emulated()
3110 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_READ_BYTE_DATA))  in i2c_smbus_read_i2c_block_data_or_emulated()
3113 	if (i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_READ_WORD_DATA)) {  in i2c_smbus_read_i2c_block_data_or_emulated()
3115 			status = i2c_smbus_read_word_data(client, command + i);  in i2c_smbus_read_i2c_block_data_or_emulated()
3125 		status = i2c_smbus_read_byte_data(client, command + i);  in i2c_smbus_read_i2c_block_data_or_emulated()
3137 int i2c_slave_register(struct i2c_client *client, i2c_slave_cb_t slave_cb)  in i2c_slave_register()  argument
3141 	if (!client || !slave_cb) {  in i2c_slave_register()
3146 	if (!(client->flags & I2C_CLIENT_SLAVE))  in i2c_slave_register()
3147 		dev_warn(&client->dev, "%s: client slave flag not set. You might see address collisions\n",  in i2c_slave_register()
3150 	if (!(client->flags & I2C_CLIENT_TEN)) {  in i2c_slave_register()
3152 		ret = i2c_check_7bit_addr_validity_strict(client->addr);  in i2c_slave_register()
3154 			dev_err(&client->dev, "%s: invalid address\n", __func__);  in i2c_slave_register()
3159 	if (!client->adapter->algo->reg_slave) {  in i2c_slave_register()
3160 		dev_err(&client->dev, "%s: not supported by adapter\n", __func__);  in i2c_slave_register()
3164 	client->slave_cb = slave_cb;  in i2c_slave_register()
3166 	i2c_lock_adapter(client->adapter);  in i2c_slave_register()
3167 	ret = client->adapter->algo->reg_slave(client);  in i2c_slave_register()
3168 	i2c_unlock_adapter(client->adapter);  in i2c_slave_register()
3171 		client->slave_cb = NULL;  in i2c_slave_register()
3172 		dev_err(&client->dev, "%s: adapter returned error %d\n", __func__, ret);  in i2c_slave_register()
3179 int i2c_slave_unregister(struct i2c_client *client)  in i2c_slave_unregister()  argument
3183 	if (!client->adapter->algo->unreg_slave) {  in i2c_slave_unregister()
3184 		dev_err(&client->dev, "%s: not supported by adapter\n", __func__);  in i2c_slave_unregister()
3188 	i2c_lock_adapter(client->adapter);  in i2c_slave_unregister()
3189 	ret = client->adapter->algo->unreg_slave(client);  in i2c_slave_unregister()
3190 	i2c_unlock_adapter(client->adapter);  in i2c_slave_unregister()
3193 		client->slave_cb = NULL;  in i2c_slave_unregister()
3195 		dev_err(&client->dev, "%s: adapter returned error %d\n", __func__, ret);  in i2c_slave_unregister()