154 static void ds1621_init_client(struct ds1621_data *data,  in ds1621_init_client()  argument
172 	switch (data->kind) {  in ds1621_init_client()
174 		data->update_interval = DS1625_CONVERSION_MAX;  in ds1621_init_client()
175 		data->zbits = 7;  in ds1621_init_client()
183 		data->update_interval = ds1721_convrates[resol];  in ds1621_init_client()
184 		data->zbits = 7 - resol;  in ds1621_init_client()
188 		data->update_interval = DS1621_CONVERSION_MAX;  in ds1621_init_client()
189 		data->zbits = 7;  in ds1621_init_client()
200 	struct ds1621_data *data = dev_get_drvdata(dev);  in ds1621_update_client()  local
201 	struct i2c_client *client = data->client;  in ds1621_update_client()
204 	mutex_lock(&data->update_lock);  in ds1621_update_client()
206 	if (time_after(jiffies, data->last_updated + data->update_interval) ||  in ds1621_update_client()
207 	    !data->valid) {  in ds1621_update_client()
212 		data->conf = i2c_smbus_read_byte_data(client, DS1621_REG_CONF);  in ds1621_update_client()
214 		for (i = 0; i < ARRAY_SIZE(data->temp); i++)  in ds1621_update_client()
215 			data->temp[i] = i2c_smbus_read_word_swapped(client,  in ds1621_update_client()
219 		new_conf = data->conf;  in ds1621_update_client()
220 		if (data->temp[0] > data->temp[1])	/* input > min */  in ds1621_update_client()
222 		if (data->temp[0] < data->temp[2])	/* input < max */  in ds1621_update_client()
224 		if (data->conf != new_conf)  in ds1621_update_client()
228 		data->last_updated = jiffies;  in ds1621_update_client()
229 		data->valid = 1;  in ds1621_update_client()
232 	mutex_unlock(&data->update_lock);  in ds1621_update_client()
234 	return data;  in ds1621_update_client()
241 	struct ds1621_data *data = ds1621_update_client(dev);  in show_temp()  local
243 		       DS1621_TEMP_FROM_REG(data->temp[attr->index]));  in show_temp()
250 	struct ds1621_data *data = dev_get_drvdata(dev);  in set_temp()  local
258 	mutex_lock(&data->update_lock);  in set_temp()
259 	data->temp[attr->index] = DS1621_TEMP_TO_REG(val, data->zbits);  in set_temp()
260 	i2c_smbus_write_word_swapped(data->client, DS1621_REG_TEMP[attr->index],  in set_temp()
261 				     data->temp[attr->index]);  in set_temp()
262 	mutex_unlock(&data->update_lock);  in set_temp()
269 	struct ds1621_data *data = ds1621_update_client(dev);  in show_alarms()  local
270 	return sprintf(buf, "%d\n", ALARMS_FROM_REG(data->conf));  in show_alarms()
277 	struct ds1621_data *data = ds1621_update_client(dev);  in show_alarm()  local
278 	return sprintf(buf, "%d\n", !!(data->conf & attr->index));  in show_alarm()
284 	struct ds1621_data *data = dev_get_drvdata(dev);  in show_convrate()  local
285 	return scnprintf(buf, PAGE_SIZE, "%hu\n", data->update_interval);  in show_convrate()
291 	struct ds1621_data *data = dev_get_drvdata(dev);  in set_convrate()  local
292 	struct i2c_client *client = data->client;  in set_convrate()
306 	mutex_lock(&data->update_lock);  in set_convrate()
307 	data->conf = i2c_smbus_read_byte_data(client, DS1621_REG_CONF);  in set_convrate()
308 	data->conf &= ~DS1621_REG_CONFIG_RESOL;  in set_convrate()
309 	data->conf |= (resol << DS1621_REG_CONFIG_RESOL_SHIFT);  in set_convrate()
310 	i2c_smbus_write_byte_data(client, DS1621_REG_CONF, data->conf);  in set_convrate()
311 	data->update_interval = ds1721_convrates[resol];  in set_convrate()
312 	data->zbits = 7 - resol;  in set_convrate()
313 	mutex_unlock(&data->update_lock);  in set_convrate()
345 	struct ds1621_data *data = dev_get_drvdata(dev);  in ds1621_attribute_visible()  local
348 		if (data->kind == ds1621 || data->kind == ds1625)  in ds1621_attribute_visible()
363 	struct ds1621_data *data;  in ds1621_probe()  local
366 	data = devm_kzalloc(&client->dev, sizeof(struct ds1621_data),  in ds1621_probe()
368 	if (!data)  in ds1621_probe()
371 	mutex_init(&data->update_lock);  in ds1621_probe()
373 	data->kind = id->driver_data;  in ds1621_probe()
374 	data->client = client;  in ds1621_probe()
377 	ds1621_init_client(data, client);  in ds1621_probe()
380 							   client->name, data,  in ds1621_probe()