115 	struct i2c_client	*client;  member
117 	s32 (*read_block_data)(const struct i2c_client *client, u8 command,
119 	s32 (*write_block_data)(const struct i2c_client *client, u8 command,
190 static s32 ds1307_read_block_data_once(const struct i2c_client *client,  in ds1307_read_block_data_once()  argument
196 		data = i2c_smbus_read_byte_data(client, command + i);  in ds1307_read_block_data_once()
204 static s32 ds1307_read_block_data(const struct i2c_client *client, u8 command,  in ds1307_read_block_data()  argument
211 	dev_dbg(&client->dev, "ds1307_read_block_data (length=%d)\n", length);  in ds1307_read_block_data()
212 	ret = ds1307_read_block_data_once(client, command, length, values);  in ds1307_read_block_data()
217 			dev_err(&client->dev,  in ds1307_read_block_data()
222 		ret = ds1307_read_block_data_once(client, command, length,  in ds1307_read_block_data()
230 static s32 ds1307_write_block_data(const struct i2c_client *client, u8 command,  in ds1307_write_block_data()  argument
236 	dev_dbg(&client->dev, "ds1307_write_block_data (length=%d)\n", length);  in ds1307_write_block_data()
241 			dev_err(&client->dev,  in ds1307_write_block_data()
246 			ret = i2c_smbus_write_byte_data(client, command + i,  in ds1307_write_block_data()
251 		ret = ds1307_read_block_data_once(client, command, length,  in ds1307_write_block_data()
266 static s32 ds1307_native_smbus_write_block_data(const struct i2c_client *client,  in ds1307_native_smbus_write_block_data()  argument
272 		return i2c_smbus_write_i2c_block_data(client,  in ds1307_native_smbus_write_block_data()
276 		s32 retval = i2c_smbus_write_i2c_block_data(client,  in ds1307_native_smbus_write_block_data()
288 static s32 ds1307_native_smbus_read_block_data(const struct i2c_client *client,  in ds1307_native_smbus_read_block_data()  argument
294 		return i2c_smbus_read_i2c_block_data(client,  in ds1307_native_smbus_read_block_data()
298 		s32 retval = i2c_smbus_read_i2c_block_data(client,  in ds1307_native_smbus_read_block_data()
319 	struct i2c_client	*client = dev_id;  in ds1307_irq()  local
320 	struct ds1307		*ds1307 = i2c_get_clientdata(client);  in ds1307_irq()
325 	stat = i2c_smbus_read_byte_data(client, DS1337_REG_STATUS);  in ds1307_irq()
331 		i2c_smbus_write_byte_data(client, DS1337_REG_STATUS, stat);  in ds1307_irq()
333 		control = i2c_smbus_read_byte_data(client, DS1337_REG_CONTROL);  in ds1307_irq()
338 		i2c_smbus_write_byte_data(client, DS1337_REG_CONTROL, control);  in ds1307_irq()
357 	tmp = ds1307->read_block_data(ds1307->client,  in ds1307_get_time()
437 	result = ds1307->write_block_data(ds1307->client,  in ds1307_set_time()
448 	struct i2c_client       *client = to_i2c_client(dev);  in ds1337_read_alarm()  local
449 	struct ds1307		*ds1307 = i2c_get_clientdata(client);  in ds1337_read_alarm()
456 	ret = ds1307->read_block_data(client,  in ds1337_read_alarm()
500 	struct i2c_client	*client = to_i2c_client(dev);  in ds1337_set_alarm()  local
501 	struct ds1307		*ds1307 = i2c_get_clientdata(client);  in ds1337_set_alarm()
516 	ret = ds1307->read_block_data(client,  in ds1337_set_alarm()
551 	ret = ds1307->write_block_data(client,  in ds1337_set_alarm()
563 	struct i2c_client	*client = to_i2c_client(dev);  in ds1307_alarm_irq_enable()  local
564 	struct ds1307		*ds1307 = i2c_get_clientdata(client);  in ds1307_alarm_irq_enable()
570 	ret = i2c_smbus_read_byte_data(client, DS1337_REG_CONTROL);  in ds1307_alarm_irq_enable()
579 	ret = i2c_smbus_write_byte_data(client, DS1337_REG_CONTROL, ret);  in ds1307_alarm_irq_enable()
618 	struct i2c_client       *client = dev_id;  in mcp794xx_irq()  local
619 	struct ds1307           *ds1307 = i2c_get_clientdata(client);  in mcp794xx_irq()
626 	reg = i2c_smbus_read_byte_data(client, MCP794XX_REG_ALARM0_CTRL);  in mcp794xx_irq()
632 	ret = i2c_smbus_write_byte_data(client, MCP794XX_REG_ALARM0_CTRL, reg);  in mcp794xx_irq()
637 	reg = i2c_smbus_read_byte_data(client, MCP794XX_REG_CONTROL);  in mcp794xx_irq()
641 	ret = i2c_smbus_write_byte_data(client, MCP794XX_REG_CONTROL, reg);  in mcp794xx_irq()
655 	struct i2c_client *client = to_i2c_client(dev);  in mcp794xx_read_alarm()  local
656 	struct ds1307 *ds1307 = i2c_get_clientdata(client);  in mcp794xx_read_alarm()
664 	ret = ds1307->read_block_data(client, MCP794XX_REG_CONTROL, 10, regs);  in mcp794xx_read_alarm()
694 	struct i2c_client *client = to_i2c_client(dev);  in mcp794xx_set_alarm()  local
695 	struct ds1307 *ds1307 = i2c_get_clientdata(client);  in mcp794xx_set_alarm()
709 	ret = ds1307->read_block_data(client, MCP794XX_REG_CONTROL, 10, regs);  in mcp794xx_set_alarm()
728 	ret = ds1307->write_block_data(client, MCP794XX_REG_CONTROL, 10, regs);  in mcp794xx_set_alarm()
735 	return i2c_smbus_write_byte_data(client, MCP794XX_REG_CONTROL, regs[0]);  in mcp794xx_set_alarm()
740 	struct i2c_client *client = to_i2c_client(dev);  in mcp794xx_alarm_irq_enable()  local
741 	struct ds1307 *ds1307 = i2c_get_clientdata(client);  in mcp794xx_alarm_irq_enable()
747 	reg = i2c_smbus_read_byte_data(client, MCP794XX_REG_CONTROL);  in mcp794xx_alarm_irq_enable()
756 	return i2c_smbus_write_byte_data(client, MCP794XX_REG_CONTROL, reg);  in mcp794xx_alarm_irq_enable()
774 	struct i2c_client	*client;  in ds1307_nvram_read()  local
778 	client = kobj_to_i2c_client(kobj);  in ds1307_nvram_read()
779 	ds1307 = i2c_get_clientdata(client);  in ds1307_nvram_read()
781 	result = ds1307->read_block_data(client, ds1307->nvram_offset + off,  in ds1307_nvram_read()
784 		dev_err(&client->dev, "%s error %d\n", "nvram read", result);  in ds1307_nvram_read()
793 	struct i2c_client	*client;  in ds1307_nvram_write()  local
797 	client = kobj_to_i2c_client(kobj);  in ds1307_nvram_write()
798 	ds1307 = i2c_get_clientdata(client);  in ds1307_nvram_write()
800 	result = ds1307->write_block_data(client, ds1307->nvram_offset + off,  in ds1307_nvram_write()
803 		dev_err(&client->dev, "%s error %d\n", "nvram write", result);  in ds1307_nvram_write()
812 static u8 do_trickle_setup_ds1339(struct i2c_client *client,  in do_trickle_setup_ds1339()  argument
829 		dev_warn(&client->dev,  in do_trickle_setup_ds1339()
836 static void ds1307_trickle_of_init(struct i2c_client *client,  in ds1307_trickle_of_init()  argument
844 	if (of_property_read_u32(client->dev.of_node, "trickle-resistor-ohms" , &ohms))  in ds1307_trickle_of_init()
846 	if (of_property_read_bool(client->dev.of_node, "trickle-diode-disable"))  in ds1307_trickle_of_init()
848 	chip->trickle_charger_setup = chip->do_trickle_setup(client,  in ds1307_trickle_of_init()
854 static int ds1307_probe(struct i2c_client *client,  in ds1307_probe()  argument
861 	struct i2c_adapter	*adapter = to_i2c_adapter(client->dev.parent);  in ds1307_probe()
864 	struct ds1307_platform_data *pdata = dev_get_platdata(&client->dev);  in ds1307_probe()
878 	ds1307 = devm_kzalloc(&client->dev, sizeof(struct ds1307), GFP_KERNEL);  in ds1307_probe()
882 	i2c_set_clientdata(client, ds1307);  in ds1307_probe()
884 	ds1307->client	= client;  in ds1307_probe()
887 	if (!pdata && client->dev.of_node)  in ds1307_probe()
888 		ds1307_trickle_of_init(client, chip);  in ds1307_probe()
893 		dev_dbg(&client->dev, "writing trickle charger info 0x%x to 0x%x\n",  in ds1307_probe()
896 		i2c_smbus_write_byte_data(client, chip->trickle_charger_reg,  in ds1307_probe()
915 		tmp = ds1307->read_block_data(ds1307->client,  in ds1307_probe()
918 			dev_dbg(&client->dev, "read error %d\n", tmp);  in ds1307_probe()
932 		if (ds1307->client->irq > 0 && chip->alarm) {  in ds1307_probe()
940 		i2c_smbus_write_byte_data(client, DS1337_REG_CONTROL,  in ds1307_probe()
945 			i2c_smbus_write_byte_data(client, DS1337_REG_STATUS,  in ds1307_probe()
947 			dev_warn(&client->dev, "SET TIME!\n");  in ds1307_probe()
952 		tmp = i2c_smbus_read_i2c_block_data(ds1307->client,  in ds1307_probe()
955 			dev_dbg(&client->dev, "read error %d\n", tmp);  in ds1307_probe()
963 			i2c_smbus_write_byte_data(client,  in ds1307_probe()
966 			dev_warn(&client->dev,  in ds1307_probe()
972 			i2c_smbus_write_byte_data(client,  in ds1307_probe()
975 			dev_warn(&client->dev, "power-on detected\n");  in ds1307_probe()
980 			i2c_smbus_write_byte_data(client,  in ds1307_probe()
983 			dev_warn(&client->dev, "voltage drop detected\n");  in ds1307_probe()
991 			i2c_smbus_write_byte_data(client,  in ds1307_probe()
996 			tmp = i2c_smbus_read_i2c_block_data(ds1307->client,  in ds1307_probe()
999 				dev_dbg(&client->dev, "read error %d\n", tmp);  in ds1307_probe()
1011 			i2c_smbus_write_byte_data(client,  in ds1307_probe()
1021 		if (ds1307->client->irq > 0 && chip->alarm) {  in ds1307_probe()
1032 	tmp = ds1307->read_block_data(ds1307->client, ds1307->offset, 8, buf);  in ds1307_probe()
1034 		dev_dbg(&client->dev, "read error %d\n", tmp);  in ds1307_probe()
1050 			i2c_smbus_write_byte_data(client, DS1307_REG_SECS, 0);  in ds1307_probe()
1051 			dev_warn(&client->dev, "SET TIME!\n");  in ds1307_probe()
1058 			i2c_smbus_write_byte_data(client, DS1307_REG_SECS, 0);  in ds1307_probe()
1062 			i2c_smbus_write_byte_data(client, DS1307_REG_CONTROL,  in ds1307_probe()
1065 			dev_warn(&client->dev, "SET TIME!\n");  in ds1307_probe()
1072 			i2c_smbus_write_byte_data(client, DS1307_REG_SECS, 0);  in ds1307_probe()
1074 		tmp = i2c_smbus_read_byte_data(client, DS1340_REG_FLAG);  in ds1307_probe()
1076 			dev_dbg(&client->dev, "read error %d\n", tmp);  in ds1307_probe()
1083 			i2c_smbus_write_byte_data(client, DS1340_REG_FLAG, 0);  in ds1307_probe()
1084 			dev_warn(&client->dev, "SET TIME!\n");  in ds1307_probe()
1090 			i2c_smbus_write_byte_data(client, DS1307_REG_WDAY,  in ds1307_probe()
1097 			i2c_smbus_write_byte_data(client, DS1307_REG_SECS,  in ds1307_probe()
1099 			dev_warn(&client->dev, "SET TIME!\n");  in ds1307_probe()
1132 		i2c_smbus_write_byte_data(client,  in ds1307_probe()
1138 		device_set_wakeup_capable(&client->dev, true);  in ds1307_probe()
1141 	ds1307->rtc = devm_rtc_device_register(&client->dev, client->name,  in ds1307_probe()
1148 		err = devm_request_threaded_irq(&client->dev,  in ds1307_probe()
1149 						client->irq, NULL, irq_handler,  in ds1307_probe()
1151 						ds1307->rtc->name, client);  in ds1307_probe()
1153 			client->irq = 0;  in ds1307_probe()
1154 			device_set_wakeup_capable(&client->dev, false);  in ds1307_probe()
1156 			dev_err(&client->dev, "unable to request IRQ!\n");  in ds1307_probe()
1158 			dev_dbg(&client->dev, "got IRQ %d\n", client->irq);  in ds1307_probe()
1163 		ds1307->nvram = devm_kzalloc(&client->dev,  in ds1307_probe()
1167 			dev_err(&client->dev, "cannot allocate memory for nvram sysfs\n");  in ds1307_probe()
1180 			err = sysfs_create_bin_file(&client->dev.kobj,  in ds1307_probe()
1183 				dev_err(&client->dev,  in ds1307_probe()
1188 				dev_info(&client->dev, "%zu bytes nvram\n",  in ds1307_probe()
1200 static int ds1307_remove(struct i2c_client *client)  in ds1307_remove()  argument
1202 	struct ds1307 *ds1307 = i2c_get_clientdata(client);  in ds1307_remove()
1205 		sysfs_remove_bin_file(&client->dev.kobj, ds1307->nvram);  in ds1307_remove()