1d84ca5b3SWolfram Sang /* 2d84ca5b3SWolfram Sang * Driver for the ADT7411 (I2C/SPI 8 channel 10 bit ADC & temperature-sensor) 3d84ca5b3SWolfram Sang * 4d84ca5b3SWolfram Sang * Copyright (C) 2008, 2010 Pengutronix 5d84ca5b3SWolfram Sang * 6d84ca5b3SWolfram Sang * This program is free software; you can redistribute it and/or modify 7d84ca5b3SWolfram Sang * it under the terms of the GNU General Public License version 2 as 8d84ca5b3SWolfram Sang * published by the Free Software Foundation. 9d84ca5b3SWolfram Sang * 10d84ca5b3SWolfram Sang * TODO: SPI, support for external temperature sensor 11d84ca5b3SWolfram Sang * use power-down mode for suspend?, interrupt handling? 12d84ca5b3SWolfram Sang */ 13d84ca5b3SWolfram Sang 14d84ca5b3SWolfram Sang #include <linux/kernel.h> 15d84ca5b3SWolfram Sang #include <linux/module.h> 16d84ca5b3SWolfram Sang #include <linux/init.h> 17d84ca5b3SWolfram Sang #include <linux/err.h> 18d84ca5b3SWolfram Sang #include <linux/mutex.h> 19d84ca5b3SWolfram Sang #include <linux/jiffies.h> 20d84ca5b3SWolfram Sang #include <linux/i2c.h> 21d84ca5b3SWolfram Sang #include <linux/hwmon.h> 22d84ca5b3SWolfram Sang #include <linux/hwmon-sysfs.h> 235a0e3ad6STejun Heo #include <linux/slab.h> 24d84ca5b3SWolfram Sang 25d84ca5b3SWolfram Sang #define ADT7411_REG_INT_TEMP_VDD_LSB 0x03 26d84ca5b3SWolfram Sang #define ADT7411_REG_EXT_TEMP_AIN14_LSB 0x04 27d84ca5b3SWolfram Sang #define ADT7411_REG_VDD_MSB 0x06 28d84ca5b3SWolfram Sang #define ADT7411_REG_INT_TEMP_MSB 0x07 29d84ca5b3SWolfram Sang #define ADT7411_REG_EXT_TEMP_AIN1_MSB 0x08 30d84ca5b3SWolfram Sang 31d84ca5b3SWolfram Sang #define ADT7411_REG_CFG1 0x18 32d84ca5b3SWolfram Sang #define ADT7411_CFG1_START_MONITOR (1 << 0) 33d84ca5b3SWolfram Sang 34d84ca5b3SWolfram Sang #define ADT7411_REG_CFG2 0x19 35d84ca5b3SWolfram Sang #define ADT7411_CFG2_DISABLE_AVG (1 << 5) 36d84ca5b3SWolfram Sang 37d84ca5b3SWolfram Sang #define ADT7411_REG_CFG3 0x1a 38d84ca5b3SWolfram Sang #define ADT7411_CFG3_ADC_CLK_225 (1 << 0) 39d84ca5b3SWolfram Sang #define ADT7411_CFG3_REF_VDD (1 << 4) 40d84ca5b3SWolfram Sang 41d84ca5b3SWolfram Sang #define ADT7411_REG_DEVICE_ID 0x4d 42d84ca5b3SWolfram Sang #define ADT7411_REG_MANUFACTURER_ID 0x4e 43d84ca5b3SWolfram Sang 44d84ca5b3SWolfram Sang #define ADT7411_DEVICE_ID 0x2 45d84ca5b3SWolfram Sang #define ADT7411_MANUFACTURER_ID 0x41 46d84ca5b3SWolfram Sang 47d84ca5b3SWolfram Sang static const unsigned short normal_i2c[] = { 0x48, 0x4a, 0x4b, I2C_CLIENT_END }; 48d84ca5b3SWolfram Sang 49d84ca5b3SWolfram Sang struct adt7411_data { 50d84ca5b3SWolfram Sang struct mutex device_lock; /* for "atomic" device accesses */ 5123244985SWolfram Sang struct mutex update_lock; 52d84ca5b3SWolfram Sang unsigned long next_update; 53d84ca5b3SWolfram Sang int vref_cached; 54d84ca5b3SWolfram Sang struct device *hwmon_dev; 55d84ca5b3SWolfram Sang }; 56d84ca5b3SWolfram Sang 57d84ca5b3SWolfram Sang /* 58d84ca5b3SWolfram Sang * When reading a register containing (up to 4) lsb, all associated 59d84ca5b3SWolfram Sang * msb-registers get locked by the hardware. After _one_ of those msb is read, 60d84ca5b3SWolfram Sang * _all_ are unlocked. In order to use this locking correctly, reading lsb/msb 61d84ca5b3SWolfram Sang * is protected here with a mutex, too. 62d84ca5b3SWolfram Sang */ 63d84ca5b3SWolfram Sang static int adt7411_read_10_bit(struct i2c_client *client, u8 lsb_reg, 64d84ca5b3SWolfram Sang u8 msb_reg, u8 lsb_shift) 65d84ca5b3SWolfram Sang { 66d84ca5b3SWolfram Sang struct adt7411_data *data = i2c_get_clientdata(client); 67d84ca5b3SWolfram Sang int val, tmp; 68d84ca5b3SWolfram Sang 69d84ca5b3SWolfram Sang mutex_lock(&data->device_lock); 70d84ca5b3SWolfram Sang 71d84ca5b3SWolfram Sang val = i2c_smbus_read_byte_data(client, lsb_reg); 72d84ca5b3SWolfram Sang if (val < 0) 73d84ca5b3SWolfram Sang goto exit_unlock; 74d84ca5b3SWolfram Sang 75d84ca5b3SWolfram Sang tmp = (val >> lsb_shift) & 3; 76d84ca5b3SWolfram Sang val = i2c_smbus_read_byte_data(client, msb_reg); 77d84ca5b3SWolfram Sang 78d84ca5b3SWolfram Sang if (val >= 0) 79d84ca5b3SWolfram Sang val = (val << 2) | tmp; 80d84ca5b3SWolfram Sang 81d84ca5b3SWolfram Sang exit_unlock: 82d84ca5b3SWolfram Sang mutex_unlock(&data->device_lock); 83d84ca5b3SWolfram Sang 84d84ca5b3SWolfram Sang return val; 85d84ca5b3SWolfram Sang } 86d84ca5b3SWolfram Sang 87d84ca5b3SWolfram Sang static int adt7411_modify_bit(struct i2c_client *client, u8 reg, u8 bit, 88d84ca5b3SWolfram Sang bool flag) 89d84ca5b3SWolfram Sang { 90d84ca5b3SWolfram Sang struct adt7411_data *data = i2c_get_clientdata(client); 91d84ca5b3SWolfram Sang int ret, val; 92d84ca5b3SWolfram Sang 93d84ca5b3SWolfram Sang mutex_lock(&data->device_lock); 94d84ca5b3SWolfram Sang 95d84ca5b3SWolfram Sang ret = i2c_smbus_read_byte_data(client, reg); 96d84ca5b3SWolfram Sang if (ret < 0) 97d84ca5b3SWolfram Sang goto exit_unlock; 98d84ca5b3SWolfram Sang 99d84ca5b3SWolfram Sang if (flag) 100d84ca5b3SWolfram Sang val = ret | bit; 101d84ca5b3SWolfram Sang else 102d84ca5b3SWolfram Sang val = ret & ~bit; 103d84ca5b3SWolfram Sang 104d84ca5b3SWolfram Sang ret = i2c_smbus_write_byte_data(client, reg, val); 105d84ca5b3SWolfram Sang 106d84ca5b3SWolfram Sang exit_unlock: 107d84ca5b3SWolfram Sang mutex_unlock(&data->device_lock); 108d84ca5b3SWolfram Sang return ret; 109d84ca5b3SWolfram Sang } 110d84ca5b3SWolfram Sang 111d84ca5b3SWolfram Sang static ssize_t adt7411_show_vdd(struct device *dev, 112d84ca5b3SWolfram Sang struct device_attribute *attr, char *buf) 113d84ca5b3SWolfram Sang { 114d84ca5b3SWolfram Sang struct i2c_client *client = to_i2c_client(dev); 115d84ca5b3SWolfram Sang int ret = adt7411_read_10_bit(client, ADT7411_REG_INT_TEMP_VDD_LSB, 116d84ca5b3SWolfram Sang ADT7411_REG_VDD_MSB, 2); 117d84ca5b3SWolfram Sang 118d84ca5b3SWolfram Sang return ret < 0 ? ret : sprintf(buf, "%u\n", ret * 7000 / 1024); 119d84ca5b3SWolfram Sang } 120d84ca5b3SWolfram Sang 121d84ca5b3SWolfram Sang static ssize_t adt7411_show_temp(struct device *dev, 122d84ca5b3SWolfram Sang struct device_attribute *attr, char *buf) 123d84ca5b3SWolfram Sang { 124d84ca5b3SWolfram Sang struct i2c_client *client = to_i2c_client(dev); 125d84ca5b3SWolfram Sang int val = adt7411_read_10_bit(client, ADT7411_REG_INT_TEMP_VDD_LSB, 126d84ca5b3SWolfram Sang ADT7411_REG_INT_TEMP_MSB, 0); 127d84ca5b3SWolfram Sang 128d84ca5b3SWolfram Sang if (val < 0) 129d84ca5b3SWolfram Sang return val; 130d84ca5b3SWolfram Sang 131d84ca5b3SWolfram Sang val = val & 0x200 ? val - 0x400 : val; /* 10 bit signed */ 132d84ca5b3SWolfram Sang 133d84ca5b3SWolfram Sang return sprintf(buf, "%d\n", val * 250); 134d84ca5b3SWolfram Sang } 135d84ca5b3SWolfram Sang 136d84ca5b3SWolfram Sang static ssize_t adt7411_show_input(struct device *dev, 137d84ca5b3SWolfram Sang struct device_attribute *attr, char *buf) 138d84ca5b3SWolfram Sang { 139d84ca5b3SWolfram Sang int nr = to_sensor_dev_attr(attr)->index; 140d84ca5b3SWolfram Sang struct i2c_client *client = to_i2c_client(dev); 141d84ca5b3SWolfram Sang struct adt7411_data *data = i2c_get_clientdata(client); 142d84ca5b3SWolfram Sang int val; 143d84ca5b3SWolfram Sang u8 lsb_reg, lsb_shift; 144d84ca5b3SWolfram Sang 14523244985SWolfram Sang mutex_lock(&data->update_lock); 146d84ca5b3SWolfram Sang if (time_after_eq(jiffies, data->next_update)) { 147d84ca5b3SWolfram Sang val = i2c_smbus_read_byte_data(client, ADT7411_REG_CFG3); 148d84ca5b3SWolfram Sang if (val < 0) 14923244985SWolfram Sang goto exit_unlock; 150d84ca5b3SWolfram Sang 15123244985SWolfram Sang if (val & ADT7411_CFG3_REF_VDD) { 152d84ca5b3SWolfram Sang val = adt7411_read_10_bit(client, 153d84ca5b3SWolfram Sang ADT7411_REG_INT_TEMP_VDD_LSB, 154d84ca5b3SWolfram Sang ADT7411_REG_VDD_MSB, 2); 155d84ca5b3SWolfram Sang if (val < 0) 15623244985SWolfram Sang goto exit_unlock; 157d84ca5b3SWolfram Sang 158d84ca5b3SWolfram Sang data->vref_cached = val * 7000 / 1024; 159d84ca5b3SWolfram Sang } else { 160d84ca5b3SWolfram Sang data->vref_cached = 2250; 161d84ca5b3SWolfram Sang } 162d84ca5b3SWolfram Sang 163d84ca5b3SWolfram Sang data->next_update = jiffies + HZ; 164d84ca5b3SWolfram Sang } 165d84ca5b3SWolfram Sang 166d84ca5b3SWolfram Sang lsb_reg = ADT7411_REG_EXT_TEMP_AIN14_LSB + (nr >> 2); 167d84ca5b3SWolfram Sang lsb_shift = 2 * (nr & 0x03); 168d84ca5b3SWolfram Sang val = adt7411_read_10_bit(client, lsb_reg, 169d84ca5b3SWolfram Sang ADT7411_REG_EXT_TEMP_AIN1_MSB + nr, lsb_shift); 17023244985SWolfram Sang if (val < 0) 17123244985SWolfram Sang goto exit_unlock; 172d84ca5b3SWolfram Sang 17323244985SWolfram Sang val = sprintf(buf, "%u\n", val * data->vref_cached / 1024); 17423244985SWolfram Sang exit_unlock: 17523244985SWolfram Sang mutex_unlock(&data->update_lock); 17623244985SWolfram Sang return val; 177d84ca5b3SWolfram Sang } 178d84ca5b3SWolfram Sang 179d84ca5b3SWolfram Sang static ssize_t adt7411_show_bit(struct device *dev, 180d84ca5b3SWolfram Sang struct device_attribute *attr, char *buf) 181d84ca5b3SWolfram Sang { 182d84ca5b3SWolfram Sang struct sensor_device_attribute_2 *attr2 = to_sensor_dev_attr_2(attr); 183d84ca5b3SWolfram Sang struct i2c_client *client = to_i2c_client(dev); 184d84ca5b3SWolfram Sang int ret = i2c_smbus_read_byte_data(client, attr2->index); 185d84ca5b3SWolfram Sang 186d84ca5b3SWolfram Sang return ret < 0 ? ret : sprintf(buf, "%u\n", !!(ret & attr2->nr)); 187d84ca5b3SWolfram Sang } 188d84ca5b3SWolfram Sang 189d84ca5b3SWolfram Sang static ssize_t adt7411_set_bit(struct device *dev, 190d84ca5b3SWolfram Sang struct device_attribute *attr, const char *buf, 191d84ca5b3SWolfram Sang size_t count) 192d84ca5b3SWolfram Sang { 193d84ca5b3SWolfram Sang struct sensor_device_attribute_2 *s_attr2 = to_sensor_dev_attr_2(attr); 194d84ca5b3SWolfram Sang struct i2c_client *client = to_i2c_client(dev); 195d84ca5b3SWolfram Sang struct adt7411_data *data = i2c_get_clientdata(client); 196d84ca5b3SWolfram Sang int ret; 197d84ca5b3SWolfram Sang unsigned long flag; 198d84ca5b3SWolfram Sang 199179c4fdbSFrans Meulenbroeks ret = kstrtoul(buf, 0, &flag); 200d84ca5b3SWolfram Sang if (ret || flag > 1) 201d84ca5b3SWolfram Sang return -EINVAL; 202d84ca5b3SWolfram Sang 203d84ca5b3SWolfram Sang ret = adt7411_modify_bit(client, s_attr2->index, s_attr2->nr, flag); 204d84ca5b3SWolfram Sang 205d84ca5b3SWolfram Sang /* force update */ 20623244985SWolfram Sang mutex_lock(&data->update_lock); 207d84ca5b3SWolfram Sang data->next_update = jiffies; 20823244985SWolfram Sang mutex_unlock(&data->update_lock); 209d84ca5b3SWolfram Sang 210d84ca5b3SWolfram Sang return ret < 0 ? ret : count; 211d84ca5b3SWolfram Sang } 212d84ca5b3SWolfram Sang 213d84ca5b3SWolfram Sang #define ADT7411_BIT_ATTR(__name, __reg, __bit) \ 214d84ca5b3SWolfram Sang SENSOR_DEVICE_ATTR_2(__name, S_IRUGO | S_IWUSR, adt7411_show_bit, \ 215d84ca5b3SWolfram Sang adt7411_set_bit, __bit, __reg) 216d84ca5b3SWolfram Sang 217d84ca5b3SWolfram Sang static DEVICE_ATTR(temp1_input, S_IRUGO, adt7411_show_temp, NULL); 218d84ca5b3SWolfram Sang static DEVICE_ATTR(in0_input, S_IRUGO, adt7411_show_vdd, NULL); 219d84ca5b3SWolfram Sang static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, adt7411_show_input, NULL, 0); 220d84ca5b3SWolfram Sang static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, adt7411_show_input, NULL, 1); 221d84ca5b3SWolfram Sang static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, adt7411_show_input, NULL, 2); 222d84ca5b3SWolfram Sang static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, adt7411_show_input, NULL, 3); 223d84ca5b3SWolfram Sang static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, adt7411_show_input, NULL, 4); 224d84ca5b3SWolfram Sang static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, adt7411_show_input, NULL, 5); 225d84ca5b3SWolfram Sang static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, adt7411_show_input, NULL, 6); 226d84ca5b3SWolfram Sang static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, adt7411_show_input, NULL, 7); 227d84ca5b3SWolfram Sang static ADT7411_BIT_ATTR(no_average, ADT7411_REG_CFG2, ADT7411_CFG2_DISABLE_AVG); 228d84ca5b3SWolfram Sang static ADT7411_BIT_ATTR(fast_sampling, ADT7411_REG_CFG3, ADT7411_CFG3_ADC_CLK_225); 229d84ca5b3SWolfram Sang static ADT7411_BIT_ATTR(adc_ref_vdd, ADT7411_REG_CFG3, ADT7411_CFG3_REF_VDD); 230d84ca5b3SWolfram Sang 231d84ca5b3SWolfram Sang static struct attribute *adt7411_attrs[] = { 232d84ca5b3SWolfram Sang &dev_attr_temp1_input.attr, 233d84ca5b3SWolfram Sang &dev_attr_in0_input.attr, 234d84ca5b3SWolfram Sang &sensor_dev_attr_in1_input.dev_attr.attr, 235d84ca5b3SWolfram Sang &sensor_dev_attr_in2_input.dev_attr.attr, 236d84ca5b3SWolfram Sang &sensor_dev_attr_in3_input.dev_attr.attr, 237d84ca5b3SWolfram Sang &sensor_dev_attr_in4_input.dev_attr.attr, 238d84ca5b3SWolfram Sang &sensor_dev_attr_in5_input.dev_attr.attr, 239d84ca5b3SWolfram Sang &sensor_dev_attr_in6_input.dev_attr.attr, 240d84ca5b3SWolfram Sang &sensor_dev_attr_in7_input.dev_attr.attr, 241d84ca5b3SWolfram Sang &sensor_dev_attr_in8_input.dev_attr.attr, 242d84ca5b3SWolfram Sang &sensor_dev_attr_no_average.dev_attr.attr, 243d84ca5b3SWolfram Sang &sensor_dev_attr_fast_sampling.dev_attr.attr, 244d84ca5b3SWolfram Sang &sensor_dev_attr_adc_ref_vdd.dev_attr.attr, 245d84ca5b3SWolfram Sang NULL 246d84ca5b3SWolfram Sang }; 247d84ca5b3SWolfram Sang 248d84ca5b3SWolfram Sang static const struct attribute_group adt7411_attr_grp = { 249d84ca5b3SWolfram Sang .attrs = adt7411_attrs, 250d84ca5b3SWolfram Sang }; 251d84ca5b3SWolfram Sang 252d84ca5b3SWolfram Sang static int adt7411_detect(struct i2c_client *client, 253d84ca5b3SWolfram Sang struct i2c_board_info *info) 254d84ca5b3SWolfram Sang { 255d84ca5b3SWolfram Sang int val; 256d84ca5b3SWolfram Sang 257d84ca5b3SWolfram Sang if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) 258d84ca5b3SWolfram Sang return -ENODEV; 259d84ca5b3SWolfram Sang 260d84ca5b3SWolfram Sang val = i2c_smbus_read_byte_data(client, ADT7411_REG_MANUFACTURER_ID); 261d84ca5b3SWolfram Sang if (val < 0 || val != ADT7411_MANUFACTURER_ID) { 262d84ca5b3SWolfram Sang dev_dbg(&client->dev, "Wrong manufacturer ID. Got %d, " 263d84ca5b3SWolfram Sang "expected %d\n", val, ADT7411_MANUFACTURER_ID); 264d84ca5b3SWolfram Sang return -ENODEV; 265d84ca5b3SWolfram Sang } 266d84ca5b3SWolfram Sang 267d84ca5b3SWolfram Sang val = i2c_smbus_read_byte_data(client, ADT7411_REG_DEVICE_ID); 268d84ca5b3SWolfram Sang if (val < 0 || val != ADT7411_DEVICE_ID) { 269d84ca5b3SWolfram Sang dev_dbg(&client->dev, "Wrong device ID. Got %d, " 270d84ca5b3SWolfram Sang "expected %d\n", val, ADT7411_DEVICE_ID); 271d84ca5b3SWolfram Sang return -ENODEV; 272d84ca5b3SWolfram Sang } 273d84ca5b3SWolfram Sang 274d84ca5b3SWolfram Sang strlcpy(info->type, "adt7411", I2C_NAME_SIZE); 275d84ca5b3SWolfram Sang 276d84ca5b3SWolfram Sang return 0; 277d84ca5b3SWolfram Sang } 278d84ca5b3SWolfram Sang 279d84ca5b3SWolfram Sang static int __devinit adt7411_probe(struct i2c_client *client, 280d84ca5b3SWolfram Sang const struct i2c_device_id *id) 281d84ca5b3SWolfram Sang { 282d84ca5b3SWolfram Sang struct adt7411_data *data; 283d84ca5b3SWolfram Sang int ret; 284d84ca5b3SWolfram Sang 28565ec17b0SGuenter Roeck data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL); 286d84ca5b3SWolfram Sang if (!data) 287d84ca5b3SWolfram Sang return -ENOMEM; 288d84ca5b3SWolfram Sang 289d84ca5b3SWolfram Sang i2c_set_clientdata(client, data); 290d84ca5b3SWolfram Sang mutex_init(&data->device_lock); 29123244985SWolfram Sang mutex_init(&data->update_lock); 292d84ca5b3SWolfram Sang 293d84ca5b3SWolfram Sang ret = adt7411_modify_bit(client, ADT7411_REG_CFG1, 294d84ca5b3SWolfram Sang ADT7411_CFG1_START_MONITOR, 1); 295d84ca5b3SWolfram Sang if (ret < 0) 29665ec17b0SGuenter Roeck return ret; 297d84ca5b3SWolfram Sang 298d84ca5b3SWolfram Sang /* force update on first occasion */ 299d84ca5b3SWolfram Sang data->next_update = jiffies; 300d84ca5b3SWolfram Sang 301d84ca5b3SWolfram Sang ret = sysfs_create_group(&client->dev.kobj, &adt7411_attr_grp); 302d84ca5b3SWolfram Sang if (ret) 30365ec17b0SGuenter Roeck return ret; 304d84ca5b3SWolfram Sang 305d84ca5b3SWolfram Sang data->hwmon_dev = hwmon_device_register(&client->dev); 306d84ca5b3SWolfram Sang if (IS_ERR(data->hwmon_dev)) { 307d84ca5b3SWolfram Sang ret = PTR_ERR(data->hwmon_dev); 308d84ca5b3SWolfram Sang goto exit_remove; 309d84ca5b3SWolfram Sang } 310d84ca5b3SWolfram Sang 311d84ca5b3SWolfram Sang dev_info(&client->dev, "successfully registered\n"); 312d84ca5b3SWolfram Sang 313d84ca5b3SWolfram Sang return 0; 314d84ca5b3SWolfram Sang 315d84ca5b3SWolfram Sang exit_remove: 316d84ca5b3SWolfram Sang sysfs_remove_group(&client->dev.kobj, &adt7411_attr_grp); 317d84ca5b3SWolfram Sang return ret; 318d84ca5b3SWolfram Sang } 319d84ca5b3SWolfram Sang 320d84ca5b3SWolfram Sang static int __devexit adt7411_remove(struct i2c_client *client) 321d84ca5b3SWolfram Sang { 322d84ca5b3SWolfram Sang struct adt7411_data *data = i2c_get_clientdata(client); 323d84ca5b3SWolfram Sang 324d84ca5b3SWolfram Sang hwmon_device_unregister(data->hwmon_dev); 325d84ca5b3SWolfram Sang sysfs_remove_group(&client->dev.kobj, &adt7411_attr_grp); 326d84ca5b3SWolfram Sang return 0; 327d84ca5b3SWolfram Sang } 328d84ca5b3SWolfram Sang 329d84ca5b3SWolfram Sang static const struct i2c_device_id adt7411_id[] = { 330d84ca5b3SWolfram Sang { "adt7411", 0 }, 331d84ca5b3SWolfram Sang { } 332d84ca5b3SWolfram Sang }; 333a7254d68Saxel lin MODULE_DEVICE_TABLE(i2c, adt7411_id); 334d84ca5b3SWolfram Sang 335d84ca5b3SWolfram Sang static struct i2c_driver adt7411_driver = { 336d84ca5b3SWolfram Sang .driver = { 337d84ca5b3SWolfram Sang .name = "adt7411", 338d84ca5b3SWolfram Sang }, 339d84ca5b3SWolfram Sang .probe = adt7411_probe, 3409e5e9b7aSBill Pemberton .remove = adt7411_remove, 341d84ca5b3SWolfram Sang .id_table = adt7411_id, 342d84ca5b3SWolfram Sang .detect = adt7411_detect, 343d84ca5b3SWolfram Sang .address_list = normal_i2c, 344d84ca5b3SWolfram Sang .class = I2C_CLASS_HWMON, 345d84ca5b3SWolfram Sang }; 346d84ca5b3SWolfram Sang 347f0967eeaSAxel Lin module_i2c_driver(adt7411_driver); 348d84ca5b3SWolfram Sang 349d84ca5b3SWolfram Sang MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de> and " 350d84ca5b3SWolfram Sang "Wolfram Sang <w.sang@pengutronix.de>"); 351d84ca5b3SWolfram Sang MODULE_DESCRIPTION("ADT7411 driver"); 352d84ca5b3SWolfram Sang MODULE_LICENSE("GPL v2"); 353