115 	struct i2c_client	*client;  member
118 	s32 (*read_block_data)(const struct i2c_client *client, u8 command,
120 	s32 (*write_block_data)(const struct i2c_client *client, u8 command,
191 static s32 ds1307_read_block_data_once(const struct i2c_client *client,  in ds1307_read_block_data_once()  argument
197 		data = i2c_smbus_read_byte_data(client, command + i);  in ds1307_read_block_data_once()
205 static s32 ds1307_read_block_data(const struct i2c_client *client, u8 command,  in ds1307_read_block_data()  argument
212 	dev_dbg(&client->dev, "ds1307_read_block_data (length=%d)\n", length);  in ds1307_read_block_data()
213 	ret = ds1307_read_block_data_once(client, command, length, values);  in ds1307_read_block_data()
218 			dev_err(&client->dev,  in ds1307_read_block_data()
223 		ret = ds1307_read_block_data_once(client, command, length,  in ds1307_read_block_data()
231 static s32 ds1307_write_block_data(const struct i2c_client *client, u8 command,  in ds1307_write_block_data()  argument
237 	dev_dbg(&client->dev, "ds1307_write_block_data (length=%d)\n", length);  in ds1307_write_block_data()
242 			dev_err(&client->dev,  in ds1307_write_block_data()
247 			ret = i2c_smbus_write_byte_data(client, command + i,  in ds1307_write_block_data()
252 		ret = ds1307_read_block_data_once(client, command, length,  in ds1307_write_block_data()
267 static s32 ds1307_native_smbus_write_block_data(const struct i2c_client *client,  in ds1307_native_smbus_write_block_data()  argument
273 		return i2c_smbus_write_i2c_block_data(client,  in ds1307_native_smbus_write_block_data()
277 		s32 retval = i2c_smbus_write_i2c_block_data(client,  in ds1307_native_smbus_write_block_data()
289 static s32 ds1307_native_smbus_read_block_data(const struct i2c_client *client,  in ds1307_native_smbus_read_block_data()  argument
295 		return i2c_smbus_read_i2c_block_data(client,  in ds1307_native_smbus_read_block_data()
299 		s32 retval = i2c_smbus_read_i2c_block_data(client,  in ds1307_native_smbus_read_block_data()
327 	struct i2c_client	*client;  in ds1307_work()  local
332 	client = ds1307->client;  in ds1307_work()
336 	stat = i2c_smbus_read_byte_data(client, DS1337_REG_STATUS);  in ds1307_work()
342 		i2c_smbus_write_byte_data(client, DS1337_REG_STATUS, stat);  in ds1307_work()
344 		control = i2c_smbus_read_byte_data(client, DS1337_REG_CONTROL);  in ds1307_work()
349 		i2c_smbus_write_byte_data(client, DS1337_REG_CONTROL, control);  in ds1307_work()
356 		enable_irq(client->irq);  in ds1307_work()
362 	struct i2c_client	*client = dev_id;  in ds1307_irq()  local
363 	struct ds1307		*ds1307 = i2c_get_clientdata(client);  in ds1307_irq()
378 	tmp = ds1307->read_block_data(ds1307->client,  in ds1307_get_time()
458 	result = ds1307->write_block_data(ds1307->client,  in ds1307_set_time()
469 	struct i2c_client       *client = to_i2c_client(dev);  in ds1337_read_alarm()  local
470 	struct ds1307		*ds1307 = i2c_get_clientdata(client);  in ds1337_read_alarm()
477 	ret = ds1307->read_block_data(client,  in ds1337_read_alarm()
521 	struct i2c_client	*client = to_i2c_client(dev);  in ds1337_set_alarm()  local
522 	struct ds1307		*ds1307 = i2c_get_clientdata(client);  in ds1337_set_alarm()
537 	ret = ds1307->read_block_data(client,  in ds1337_set_alarm()
572 	ret = ds1307->write_block_data(client,  in ds1337_set_alarm()
584 	struct i2c_client	*client = to_i2c_client(dev);  in ds1307_alarm_irq_enable()  local
585 	struct ds1307		*ds1307 = i2c_get_clientdata(client);  in ds1307_alarm_irq_enable()
591 	ret = i2c_smbus_read_byte_data(client, DS1337_REG_CONTROL);  in ds1307_alarm_irq_enable()
600 	ret = i2c_smbus_write_byte_data(client, DS1337_REG_CONTROL, ret);  in ds1307_alarm_irq_enable()
640 	struct i2c_client *client = ds1307->client;  in mcp794xx_work()  local
646 	reg = i2c_smbus_read_byte_data(client, MCP794XX_REG_ALARM0_CTRL);  in mcp794xx_work()
652 	ret = i2c_smbus_write_byte_data(client, MCP794XX_REG_ALARM0_CTRL, reg);  in mcp794xx_work()
657 	reg = i2c_smbus_read_byte_data(client, MCP794XX_REG_CONTROL);  in mcp794xx_work()
661 	ret = i2c_smbus_write_byte_data(client, MCP794XX_REG_CONTROL, reg);  in mcp794xx_work()
669 		enable_irq(client->irq);  in mcp794xx_work()
675 	struct i2c_client *client = to_i2c_client(dev);  in mcp794xx_read_alarm()  local
676 	struct ds1307 *ds1307 = i2c_get_clientdata(client);  in mcp794xx_read_alarm()
684 	ret = ds1307->read_block_data(client, MCP794XX_REG_CONTROL, 10, regs);  in mcp794xx_read_alarm()
714 	struct i2c_client *client = to_i2c_client(dev);  in mcp794xx_set_alarm()  local
715 	struct ds1307 *ds1307 = i2c_get_clientdata(client);  in mcp794xx_set_alarm()
729 	ret = ds1307->read_block_data(client, MCP794XX_REG_CONTROL, 10, regs);  in mcp794xx_set_alarm()
751 	ret = ds1307->write_block_data(client, MCP794XX_REG_CONTROL, 10, regs);  in mcp794xx_set_alarm()
760 	struct i2c_client *client = to_i2c_client(dev);  in mcp794xx_alarm_irq_enable()  local
761 	struct ds1307 *ds1307 = i2c_get_clientdata(client);  in mcp794xx_alarm_irq_enable()
767 	reg = i2c_smbus_read_byte_data(client, MCP794XX_REG_CONTROL);  in mcp794xx_alarm_irq_enable()
776 	return i2c_smbus_write_byte_data(client, MCP794XX_REG_CONTROL, reg);  in mcp794xx_alarm_irq_enable()
794 	struct i2c_client	*client;  in ds1307_nvram_read()  local
798 	client = kobj_to_i2c_client(kobj);  in ds1307_nvram_read()
799 	ds1307 = i2c_get_clientdata(client);  in ds1307_nvram_read()
808 	result = ds1307->read_block_data(client, ds1307->nvram_offset + off,  in ds1307_nvram_read()
811 		dev_err(&client->dev, "%s error %d\n", "nvram read", result);  in ds1307_nvram_read()
820 	struct i2c_client	*client;  in ds1307_nvram_write()  local
824 	client = kobj_to_i2c_client(kobj);  in ds1307_nvram_write()
825 	ds1307 = i2c_get_clientdata(client);  in ds1307_nvram_write()
834 	result = ds1307->write_block_data(client, ds1307->nvram_offset + off,  in ds1307_nvram_write()
837 		dev_err(&client->dev, "%s error %d\n", "nvram write", result);  in ds1307_nvram_write()
846 static u8 do_trickle_setup_ds1339(struct i2c_client *client,  in do_trickle_setup_ds1339()  argument
863 		dev_warn(&client->dev,  in do_trickle_setup_ds1339()
870 static void ds1307_trickle_of_init(struct i2c_client *client,  in ds1307_trickle_of_init()  argument
878 	if (of_property_read_u32(client->dev.of_node, "trickle-resistor-ohms" , &ohms))  in ds1307_trickle_of_init()
880 	if (of_property_read_bool(client->dev.of_node, "trickle-diode-disable"))  in ds1307_trickle_of_init()
882 	chip->trickle_charger_setup = chip->do_trickle_setup(client,  in ds1307_trickle_of_init()
888 static int ds1307_probe(struct i2c_client *client,  in ds1307_probe()  argument
895 	struct i2c_adapter	*adapter = to_i2c_adapter(client->dev.parent);  in ds1307_probe()
898 	struct ds1307_platform_data *pdata = dev_get_platdata(&client->dev);  in ds1307_probe()
910 	ds1307 = devm_kzalloc(&client->dev, sizeof(struct ds1307), GFP_KERNEL);  in ds1307_probe()
914 	i2c_set_clientdata(client, ds1307);  in ds1307_probe()
916 	ds1307->client	= client;  in ds1307_probe()
919 	if (!pdata && client->dev.of_node)  in ds1307_probe()
920 		ds1307_trickle_of_init(client, chip);  in ds1307_probe()
925 		dev_dbg(&client->dev, "writing trickle charger info 0x%x to 0x%x\n",  in ds1307_probe()
928 		i2c_smbus_write_byte_data(client, chip->trickle_charger_reg,  in ds1307_probe()
947 		tmp = ds1307->read_block_data(ds1307->client,  in ds1307_probe()
950 			dev_dbg(&client->dev, "read error %d\n", tmp);  in ds1307_probe()
964 		if (ds1307->client->irq > 0 && chip->alarm) {  in ds1307_probe()
974 		i2c_smbus_write_byte_data(client, DS1337_REG_CONTROL,  in ds1307_probe()
979 			i2c_smbus_write_byte_data(client, DS1337_REG_STATUS,  in ds1307_probe()
981 			dev_warn(&client->dev, "SET TIME!\n");  in ds1307_probe()
986 		tmp = i2c_smbus_read_i2c_block_data(ds1307->client,  in ds1307_probe()
989 			dev_dbg(&client->dev, "read error %d\n", tmp);  in ds1307_probe()
997 			i2c_smbus_write_byte_data(client,  in ds1307_probe()
1000 			dev_warn(&client->dev,  in ds1307_probe()
1006 			i2c_smbus_write_byte_data(client,  in ds1307_probe()
1009 			dev_warn(&client->dev, "power-on detected\n");  in ds1307_probe()
1014 			i2c_smbus_write_byte_data(client,  in ds1307_probe()
1017 			dev_warn(&client->dev, "voltage drop detected\n");  in ds1307_probe()
1025 			i2c_smbus_write_byte_data(client,  in ds1307_probe()
1030 			tmp = i2c_smbus_read_i2c_block_data(ds1307->client,  in ds1307_probe()
1033 				dev_dbg(&client->dev, "read error %d\n", tmp);  in ds1307_probe()
1045 			i2c_smbus_write_byte_data(client,  in ds1307_probe()
1055 		if (ds1307->client->irq > 0 && chip->alarm) {  in ds1307_probe()
1066 	tmp = ds1307->read_block_data(ds1307->client, ds1307->offset, 8, buf);  in ds1307_probe()
1068 		dev_dbg(&client->dev, "read error %d\n", tmp);  in ds1307_probe()
1084 			i2c_smbus_write_byte_data(client, DS1307_REG_SECS, 0);  in ds1307_probe()
1085 			dev_warn(&client->dev, "SET TIME!\n");  in ds1307_probe()
1092 			i2c_smbus_write_byte_data(client, DS1307_REG_SECS, 0);  in ds1307_probe()
1096 			i2c_smbus_write_byte_data(client, DS1307_REG_CONTROL,  in ds1307_probe()
1099 			dev_warn(&client->dev, "SET TIME!\n");  in ds1307_probe()
1106 			i2c_smbus_write_byte_data(client, DS1307_REG_SECS, 0);  in ds1307_probe()
1108 		tmp = i2c_smbus_read_byte_data(client, DS1340_REG_FLAG);  in ds1307_probe()
1110 			dev_dbg(&client->dev, "read error %d\n", tmp);  in ds1307_probe()
1117 			i2c_smbus_write_byte_data(client, DS1340_REG_FLAG, 0);  in ds1307_probe()
1118 			dev_warn(&client->dev, "SET TIME!\n");  in ds1307_probe()
1124 			i2c_smbus_write_byte_data(client, DS1307_REG_WDAY,  in ds1307_probe()
1131 			i2c_smbus_write_byte_data(client, DS1307_REG_SECS,  in ds1307_probe()
1133 			dev_warn(&client->dev, "SET TIME!\n");  in ds1307_probe()
1166 		i2c_smbus_write_byte_data(client,  in ds1307_probe()
1171 	device_set_wakeup_capable(&client->dev, want_irq);  in ds1307_probe()
1172 	ds1307->rtc = devm_rtc_device_register(&client->dev, client->name,  in ds1307_probe()
1179 		err = request_irq(client->irq, ds1307_irq, IRQF_SHARED,  in ds1307_probe()
1180 			  ds1307->rtc->name, client);  in ds1307_probe()
1182 			client->irq = 0;  in ds1307_probe()
1183 			dev_err(&client->dev, "unable to request IRQ!\n");  in ds1307_probe()
1187 			dev_dbg(&client->dev, "got IRQ %d\n", client->irq);  in ds1307_probe()
1193 		ds1307->nvram = devm_kzalloc(&client->dev,  in ds1307_probe()
1197 			dev_err(&client->dev, "cannot allocate memory for nvram sysfs\n");  in ds1307_probe()
1210 			err = sysfs_create_bin_file(&client->dev.kobj,  in ds1307_probe()
1213 				dev_err(&client->dev,  in ds1307_probe()
1218 				dev_info(&client->dev, "%zu bytes nvram\n",  in ds1307_probe()
1230 static int ds1307_remove(struct i2c_client *client)  in ds1307_remove()  argument
1232 	struct ds1307 *ds1307 = i2c_get_clientdata(client);  in ds1307_remove()
1235 		free_irq(client->irq, client);  in ds1307_remove()
1240 		sysfs_remove_bin_file(&client->dev.kobj, ds1307->nvram);  in ds1307_remove()