3 * Copyright (C) 2007,2008 Hans de Goede <hdegoede@redhat.com>
4 * Preliminary tmp411 support by:
5 * Gabriel Konat, Sander Leget, Wouter Willems
6 * Copyright (C) 2009 Andre Prendel <andre.prendel@gmx.de>
8 * Cleanup and support for TMP431 and TMP432 by Guenter Roeck
9 * Copyright (c) 2013 Guenter Roeck <linux@roeck-us.net>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 * Driver for the Texas Instruments TMP401 SMBUS temperature sensor IC.
29 * Note this IC is in some aspect similar to the LM90, but it has quite a
30 * few differences too, for example the local temp has a higher resolution
31 * and thus has 16 bits registers for its value and limit instead of 8 bits.
34 #include <linux/module.h>
35 #include <linux/init.h>
36 #include <linux/bitops.h>
37 #include <linux/slab.h>
38 #include <linux/jiffies.h>
39 #include <linux/i2c.h>
40 #include <linux/hwmon.h>
41 #include <linux/hwmon-sysfs.h>
42 #include <linux/err.h>
43 #include <linux/mutex.h>
44 #include <linux/sysfs.h>
46 /* Addresses to scan */
47 static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4c, 0x4d,
48 0x4e, 0x4f, I2C_CLIENT_END };
50 enum chips { tmp401, tmp411, tmp431, tmp432, tmp435, tmp461 };
53 * The TMP401 registers, note some registers have different addresses for
56 #define TMP401_STATUS 0x02
57 #define TMP401_CONFIG_READ 0x03
58 #define TMP401_CONFIG_WRITE 0x09
59 #define TMP401_CONVERSION_RATE_READ 0x04
60 #define TMP401_CONVERSION_RATE_WRITE 0x0A
61 #define TMP401_TEMP_CRIT_HYST 0x21
62 #define TMP401_MANUFACTURER_ID_REG 0xFE
63 #define TMP401_DEVICE_ID_REG 0xFF
65 static const u8 TMP401_TEMP_MSB_READ[7][2] = {
66 { 0x00, 0x01 }, /* temp */
67 { 0x06, 0x08 }, /* low limit */
68 { 0x05, 0x07 }, /* high limit */
69 { 0x20, 0x19 }, /* therm (crit) limit */
70 { 0x30, 0x34 }, /* lowest */
71 { 0x32, 0x36 }, /* highest */
72 { 0, 0x11 }, /* offset */
75 static const u8 TMP401_TEMP_MSB_WRITE[7][2] = {
76 { 0, 0 }, /* temp (unused) */
77 { 0x0C, 0x0E }, /* low limit */
78 { 0x0B, 0x0D }, /* high limit */
79 { 0x20, 0x19 }, /* therm (crit) limit */
80 { 0x30, 0x34 }, /* lowest */
81 { 0x32, 0x36 }, /* highest */
82 { 0, 0x11 }, /* offset */
85 static const u8 TMP432_TEMP_MSB_READ[4][3] = {
86 { 0x00, 0x01, 0x23 }, /* temp */
87 { 0x06, 0x08, 0x16 }, /* low limit */
88 { 0x05, 0x07, 0x15 }, /* high limit */
89 { 0x20, 0x19, 0x1A }, /* therm (crit) limit */
92 static const u8 TMP432_TEMP_MSB_WRITE[4][3] = {
93 { 0, 0, 0 }, /* temp - unused */
94 { 0x0C, 0x0E, 0x16 }, /* low limit */
95 { 0x0B, 0x0D, 0x15 }, /* high limit */
96 { 0x20, 0x19, 0x1A }, /* therm (crit) limit */
99 /* [0] = fault, [1] = low, [2] = high, [3] = therm/crit */
100 static const u8 TMP432_STATUS_REG[] = {
101 0x1b, 0x36, 0x35, 0x37 };
104 #define TMP401_CONFIG_RANGE BIT(2)
105 #define TMP401_CONFIG_SHUTDOWN BIT(6)
106 #define TMP401_STATUS_LOCAL_CRIT BIT(0)
107 #define TMP401_STATUS_REMOTE_CRIT BIT(1)
108 #define TMP401_STATUS_REMOTE_OPEN BIT(2)
109 #define TMP401_STATUS_REMOTE_LOW BIT(3)
110 #define TMP401_STATUS_REMOTE_HIGH BIT(4)
111 #define TMP401_STATUS_LOCAL_LOW BIT(5)
112 #define TMP401_STATUS_LOCAL_HIGH BIT(6)
114 /* On TMP432, each status has its own register */
115 #define TMP432_STATUS_LOCAL BIT(0)
116 #define TMP432_STATUS_REMOTE1 BIT(1)
117 #define TMP432_STATUS_REMOTE2 BIT(2)
119 /* Manufacturer / Device ID's */
120 #define TMP401_MANUFACTURER_ID 0x55
121 #define TMP401_DEVICE_ID 0x11
122 #define TMP411A_DEVICE_ID 0x12
123 #define TMP411B_DEVICE_ID 0x13
124 #define TMP411C_DEVICE_ID 0x10
125 #define TMP431_DEVICE_ID 0x31
126 #define TMP432_DEVICE_ID 0x32
127 #define TMP435_DEVICE_ID 0x35
130 * Driver data (common to all clients)
133 static const struct i2c_device_id tmp401_id[] = {
134 { "tmp401", tmp401 },
135 { "tmp411", tmp411 },
136 { "tmp431", tmp431 },
137 { "tmp432", tmp432 },
138 { "tmp435", tmp435 },
139 { "tmp461", tmp461 },
142 MODULE_DEVICE_TABLE(i2c, tmp401_id);
145 * Client data (each client gets its own)
149 struct i2c_client *client;
150 const struct attribute_group *groups[3];
151 struct mutex update_lock;
152 char valid; /* zero until following fields are valid */
153 unsigned long last_updated; /* in jiffies */
156 unsigned int update_interval; /* in milliseconds */
158 /* register values */
166 * Sysfs attr show / store functions
169 static int tmp401_register_to_temp(u16 reg, u8 config)
173 if (config & TMP401_CONFIG_RANGE)
176 return DIV_ROUND_CLOSEST(temp * 125, 32);
179 static u16 tmp401_temp_to_register(long temp, u8 config, int zbits)
181 if (config & TMP401_CONFIG_RANGE) {
182 temp = clamp_val(temp, -64000, 191000);
185 temp = clamp_val(temp, 0, 127000);
187 return DIV_ROUND_CLOSEST(temp * (1 << (8 - zbits)), 1000) << zbits;
190 static int tmp401_update_device_reg16(struct i2c_client *client,
191 struct tmp401_data *data)
194 int num_regs = data->kind == tmp411 ? 6 : 4;
195 int num_sensors = data->kind == tmp432 ? 3 : 2;
197 for (i = 0; i < num_sensors; i++) { /* local / r1 / r2 */
198 for (j = 0; j < num_regs; j++) { /* temp / low / ... */
201 regaddr = data->kind == tmp432 ?
202 TMP432_TEMP_MSB_READ[j][i] :
203 TMP401_TEMP_MSB_READ[j][i];
204 if (j == 3) { /* crit is msb only */
205 val = i2c_smbus_read_byte_data(client, regaddr);
207 val = i2c_smbus_read_word_swapped(client,
213 data->temp[j][i] = j == 3 ? val << 8 : val;
219 static struct tmp401_data *tmp401_update_device(struct device *dev)
221 struct tmp401_data *data = dev_get_drvdata(dev);
222 struct i2c_client *client = data->client;
223 struct tmp401_data *ret = data;
225 unsigned long next_update;
227 mutex_lock(&data->update_lock);
229 next_update = data->last_updated +
230 msecs_to_jiffies(data->update_interval);
231 if (time_after(jiffies, next_update) || !data->valid) {
232 if (data->kind != tmp432) {
234 * The driver uses the TMP432 status format internally.
235 * Convert status to TMP432 format for other chips.
237 val = i2c_smbus_read_byte_data(client, TMP401_STATUS);
243 (val & TMP401_STATUS_REMOTE_OPEN) >> 1;
245 ((val & TMP401_STATUS_REMOTE_LOW) >> 2) |
246 ((val & TMP401_STATUS_LOCAL_LOW) >> 5);
248 ((val & TMP401_STATUS_REMOTE_HIGH) >> 3) |
249 ((val & TMP401_STATUS_LOCAL_HIGH) >> 6);
250 data->status[3] = val & (TMP401_STATUS_LOCAL_CRIT
251 | TMP401_STATUS_REMOTE_CRIT);
253 for (i = 0; i < ARRAY_SIZE(data->status); i++) {
254 val = i2c_smbus_read_byte_data(client,
255 TMP432_STATUS_REG[i]);
260 data->status[i] = val;
264 val = i2c_smbus_read_byte_data(client, TMP401_CONFIG_READ);
270 val = tmp401_update_device_reg16(client, data);
275 val = i2c_smbus_read_byte_data(client, TMP401_TEMP_CRIT_HYST);
280 data->temp_crit_hyst = val;
282 data->last_updated = jiffies;
287 mutex_unlock(&data->update_lock);
291 static ssize_t temp_show(struct device *dev, struct device_attribute *devattr,
294 int nr = to_sensor_dev_attr_2(devattr)->nr;
295 int index = to_sensor_dev_attr_2(devattr)->index;
296 struct tmp401_data *data = tmp401_update_device(dev);
299 return PTR_ERR(data);
301 return sprintf(buf, "%d\n",
302 tmp401_register_to_temp(data->temp[nr][index], data->config));
305 static ssize_t temp_crit_hyst_show(struct device *dev,
306 struct device_attribute *devattr,
309 int temp, index = to_sensor_dev_attr(devattr)->index;
310 struct tmp401_data *data = tmp401_update_device(dev);
313 return PTR_ERR(data);
315 mutex_lock(&data->update_lock);
316 temp = tmp401_register_to_temp(data->temp[3][index], data->config);
317 temp -= data->temp_crit_hyst * 1000;
318 mutex_unlock(&data->update_lock);
320 return sprintf(buf, "%d\n", temp);
323 static ssize_t status_show(struct device *dev,
324 struct device_attribute *devattr, char *buf)
326 int nr = to_sensor_dev_attr_2(devattr)->nr;
327 int mask = to_sensor_dev_attr_2(devattr)->index;
328 struct tmp401_data *data = tmp401_update_device(dev);
331 return PTR_ERR(data);
333 return sprintf(buf, "%d\n", !!(data->status[nr] & mask));
336 static ssize_t temp_store(struct device *dev,
337 struct device_attribute *devattr, const char *buf,
340 int nr = to_sensor_dev_attr_2(devattr)->nr;
341 int index = to_sensor_dev_attr_2(devattr)->index;
342 struct tmp401_data *data = dev_get_drvdata(dev);
343 struct i2c_client *client = data->client;
348 if (kstrtol(buf, 10, &val))
351 reg = tmp401_temp_to_register(val, data->config, nr == 3 ? 8 : 4);
353 mutex_lock(&data->update_lock);
355 regaddr = data->kind == tmp432 ? TMP432_TEMP_MSB_WRITE[nr][index]
356 : TMP401_TEMP_MSB_WRITE[nr][index];
357 if (nr == 3) { /* crit is msb only */
358 i2c_smbus_write_byte_data(client, regaddr, reg >> 8);
360 /* Hardware expects big endian data --> use _swapped */
361 i2c_smbus_write_word_swapped(client, regaddr, reg);
363 data->temp[nr][index] = reg;
365 mutex_unlock(&data->update_lock);
370 static ssize_t temp_crit_hyst_store(struct device *dev,
371 struct device_attribute *devattr,
372 const char *buf, size_t count)
374 int temp, index = to_sensor_dev_attr(devattr)->index;
375 struct tmp401_data *data = tmp401_update_device(dev);
380 return PTR_ERR(data);
382 if (kstrtol(buf, 10, &val))
385 if (data->config & TMP401_CONFIG_RANGE)
386 val = clamp_val(val, -64000, 191000);
388 val = clamp_val(val, 0, 127000);
390 mutex_lock(&data->update_lock);
391 temp = tmp401_register_to_temp(data->temp[3][index], data->config);
392 val = clamp_val(val, temp - 255000, temp);
393 reg = ((temp - val) + 500) / 1000;
395 i2c_smbus_write_byte_data(data->client, TMP401_TEMP_CRIT_HYST,
398 data->temp_crit_hyst = reg;
400 mutex_unlock(&data->update_lock);
406 * Resets the historical measurements of minimum and maximum temperatures.
407 * This is done by writing any value to any of the minimum/maximum registers
410 static ssize_t reset_temp_history_store(struct device *dev,
411 struct device_attribute *devattr,
412 const char *buf, size_t count)
414 struct tmp401_data *data = dev_get_drvdata(dev);
415 struct i2c_client *client = data->client;
418 if (kstrtol(buf, 10, &val))
423 "temp_reset_history value %ld not supported. Use 1 to reset the history!\n",
427 mutex_lock(&data->update_lock);
428 i2c_smbus_write_byte_data(client, TMP401_TEMP_MSB_WRITE[5][0], val);
430 mutex_unlock(&data->update_lock);
435 static ssize_t update_interval_show(struct device *dev,
436 struct device_attribute *attr, char *buf)
438 struct tmp401_data *data = dev_get_drvdata(dev);
440 return sprintf(buf, "%u\n", data->update_interval);
443 static ssize_t update_interval_store(struct device *dev,
444 struct device_attribute *attr,
445 const char *buf, size_t count)
447 struct tmp401_data *data = dev_get_drvdata(dev);
448 struct i2c_client *client = data->client;
452 err = kstrtoul(buf, 10, &val);
457 * For valid rates, interval can be calculated as
458 * interval = (1 << (7 - rate)) * 125;
459 * Rounded rate is therefore
460 * rate = 7 - __fls(interval * 4 / (125 * 3));
461 * Use clamp_val() to avoid overflows, and to ensure valid input
464 val = clamp_val(val, 125, 16000);
465 rate = 7 - __fls(val * 4 / (125 * 3));
466 mutex_lock(&data->update_lock);
467 i2c_smbus_write_byte_data(client, TMP401_CONVERSION_RATE_WRITE, rate);
468 data->update_interval = (1 << (7 - rate)) * 125;
469 mutex_unlock(&data->update_lock);
474 static SENSOR_DEVICE_ATTR_2_RO(temp1_input, temp, 0, 0);
475 static SENSOR_DEVICE_ATTR_2_RW(temp1_min, temp, 1, 0);
476 static SENSOR_DEVICE_ATTR_2_RW(temp1_max, temp, 2, 0);
477 static SENSOR_DEVICE_ATTR_2_RW(temp1_crit, temp, 3, 0);
478 static SENSOR_DEVICE_ATTR_RW(temp1_crit_hyst, temp_crit_hyst, 0);
479 static SENSOR_DEVICE_ATTR_2_RO(temp1_min_alarm, status, 1,
480 TMP432_STATUS_LOCAL);
481 static SENSOR_DEVICE_ATTR_2_RO(temp1_max_alarm, status, 2,
482 TMP432_STATUS_LOCAL);
483 static SENSOR_DEVICE_ATTR_2_RO(temp1_crit_alarm, status, 3,
484 TMP432_STATUS_LOCAL);
485 static SENSOR_DEVICE_ATTR_2_RO(temp2_input, temp, 0, 1);
486 static SENSOR_DEVICE_ATTR_2_RW(temp2_min, temp, 1, 1);
487 static SENSOR_DEVICE_ATTR_2_RW(temp2_max, temp, 2, 1);
488 static SENSOR_DEVICE_ATTR_2_RW(temp2_crit, temp, 3, 1);
489 static SENSOR_DEVICE_ATTR_RO(temp2_crit_hyst, temp_crit_hyst, 1);
490 static SENSOR_DEVICE_ATTR_2_RO(temp2_fault, status, 0, TMP432_STATUS_REMOTE1);
491 static SENSOR_DEVICE_ATTR_2_RO(temp2_min_alarm, status, 1,
492 TMP432_STATUS_REMOTE1);
493 static SENSOR_DEVICE_ATTR_2_RO(temp2_max_alarm, status, 2,
494 TMP432_STATUS_REMOTE1);
495 static SENSOR_DEVICE_ATTR_2_RO(temp2_crit_alarm, status, 3,
496 TMP432_STATUS_REMOTE1);
498 static DEVICE_ATTR_RW(update_interval);
500 static struct attribute *tmp401_attributes[] = {
501 &sensor_dev_attr_temp1_input.dev_attr.attr,
502 &sensor_dev_attr_temp1_min.dev_attr.attr,
503 &sensor_dev_attr_temp1_max.dev_attr.attr,
504 &sensor_dev_attr_temp1_crit.dev_attr.attr,
505 &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
506 &sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
507 &sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
508 &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
510 &sensor_dev_attr_temp2_input.dev_attr.attr,
511 &sensor_dev_attr_temp2_min.dev_attr.attr,
512 &sensor_dev_attr_temp2_max.dev_attr.attr,
513 &sensor_dev_attr_temp2_crit.dev_attr.attr,
514 &sensor_dev_attr_temp2_crit_hyst.dev_attr.attr,
515 &sensor_dev_attr_temp2_fault.dev_attr.attr,
516 &sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
517 &sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
518 &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr,
520 &dev_attr_update_interval.attr,
525 static const struct attribute_group tmp401_group = {
526 .attrs = tmp401_attributes,
530 * Additional features of the TMP411 chip.
531 * The TMP411 stores the minimum and maximum
532 * temperature measured since power-on, chip-reset, or
533 * minimum and maximum register reset for both the local
534 * and remote channels.
536 static SENSOR_DEVICE_ATTR_2_RO(temp1_lowest, temp, 4, 0);
537 static SENSOR_DEVICE_ATTR_2_RO(temp1_highest, temp, 5, 0);
538 static SENSOR_DEVICE_ATTR_2_RO(temp2_lowest, temp, 4, 1);
539 static SENSOR_DEVICE_ATTR_2_RO(temp2_highest, temp, 5, 1);
540 static SENSOR_DEVICE_ATTR_WO(temp_reset_history, reset_temp_history, 0);
542 static struct attribute *tmp411_attributes[] = {
543 &sensor_dev_attr_temp1_highest.dev_attr.attr,
544 &sensor_dev_attr_temp1_lowest.dev_attr.attr,
545 &sensor_dev_attr_temp2_highest.dev_attr.attr,
546 &sensor_dev_attr_temp2_lowest.dev_attr.attr,
547 &sensor_dev_attr_temp_reset_history.dev_attr.attr,
551 static const struct attribute_group tmp411_group = {
552 .attrs = tmp411_attributes,
555 static SENSOR_DEVICE_ATTR_2_RO(temp3_input, temp, 0, 2);
556 static SENSOR_DEVICE_ATTR_2_RW(temp3_min, temp, 1, 2);
557 static SENSOR_DEVICE_ATTR_2_RW(temp3_max, temp, 2, 2);
558 static SENSOR_DEVICE_ATTR_2_RW(temp3_crit, temp, 3, 2);
559 static SENSOR_DEVICE_ATTR_RO(temp3_crit_hyst, temp_crit_hyst, 2);
560 static SENSOR_DEVICE_ATTR_2_RO(temp3_fault, status, 0, TMP432_STATUS_REMOTE2);
561 static SENSOR_DEVICE_ATTR_2_RO(temp3_min_alarm, status, 1,
562 TMP432_STATUS_REMOTE2);
563 static SENSOR_DEVICE_ATTR_2_RO(temp3_max_alarm, status, 2,
564 TMP432_STATUS_REMOTE2);
565 static SENSOR_DEVICE_ATTR_2_RO(temp3_crit_alarm, status, 3,
566 TMP432_STATUS_REMOTE2);
568 static struct attribute *tmp432_attributes[] = {
569 &sensor_dev_attr_temp3_input.dev_attr.attr,
570 &sensor_dev_attr_temp3_min.dev_attr.attr,
571 &sensor_dev_attr_temp3_max.dev_attr.attr,
572 &sensor_dev_attr_temp3_crit.dev_attr.attr,
573 &sensor_dev_attr_temp3_crit_hyst.dev_attr.attr,
574 &sensor_dev_attr_temp3_fault.dev_attr.attr,
575 &sensor_dev_attr_temp3_max_alarm.dev_attr.attr,
576 &sensor_dev_attr_temp3_min_alarm.dev_attr.attr,
577 &sensor_dev_attr_temp3_crit_alarm.dev_attr.attr,
582 static const struct attribute_group tmp432_group = {
583 .attrs = tmp432_attributes,
587 * Additional features of the TMP461 chip.
588 * The TMP461 temperature offset for the remote channel.
590 static SENSOR_DEVICE_ATTR_2_RW(temp2_offset, temp, 6, 1);
592 static struct attribute *tmp461_attributes[] = {
593 &sensor_dev_attr_temp2_offset.dev_attr.attr,
597 static const struct attribute_group tmp461_group = {
598 .attrs = tmp461_attributes,
602 * Begin non sysfs callback code (aka Real code)
605 static int tmp401_init_client(struct tmp401_data *data,
606 struct i2c_client *client)
608 int config, config_orig, status = 0;
610 /* Set the conversion rate to 2 Hz */
611 i2c_smbus_write_byte_data(client, TMP401_CONVERSION_RATE_WRITE, 5);
612 data->update_interval = 500;
614 /* Start conversions (disable shutdown if necessary) */
615 config = i2c_smbus_read_byte_data(client, TMP401_CONFIG_READ);
619 config_orig = config;
620 config &= ~TMP401_CONFIG_SHUTDOWN;
622 if (config != config_orig)
623 status = i2c_smbus_write_byte_data(client,
630 static int tmp401_detect(struct i2c_client *client,
631 struct i2c_board_info *info)
634 struct i2c_adapter *adapter = client->adapter;
637 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
640 /* Detect and identify the chip */
641 reg = i2c_smbus_read_byte_data(client, TMP401_MANUFACTURER_ID_REG);
642 if (reg != TMP401_MANUFACTURER_ID)
645 reg = i2c_smbus_read_byte_data(client, TMP401_DEVICE_ID_REG);
648 case TMP401_DEVICE_ID:
649 if (client->addr != 0x4c)
653 case TMP411A_DEVICE_ID:
654 if (client->addr != 0x4c)
658 case TMP411B_DEVICE_ID:
659 if (client->addr != 0x4d)
663 case TMP411C_DEVICE_ID:
664 if (client->addr != 0x4e)
668 case TMP431_DEVICE_ID:
669 if (client->addr != 0x4c && client->addr != 0x4d)
673 case TMP432_DEVICE_ID:
674 if (client->addr != 0x4c && client->addr != 0x4d)
678 case TMP435_DEVICE_ID:
685 reg = i2c_smbus_read_byte_data(client, TMP401_CONFIG_READ);
689 reg = i2c_smbus_read_byte_data(client, TMP401_CONVERSION_RATE_READ);
690 /* Datasheet says: 0x1-0x6 */
694 strlcpy(info->type, tmp401_id[kind].name, I2C_NAME_SIZE);
699 static int tmp401_probe(struct i2c_client *client,
700 const struct i2c_device_id *id)
702 static const char * const names[] = {
703 "TMP401", "TMP411", "TMP431", "TMP432", "TMP435", "TMP461"
705 struct device *dev = &client->dev;
706 struct device *hwmon_dev;
707 struct tmp401_data *data;
708 int groups = 0, status;
710 data = devm_kzalloc(dev, sizeof(struct tmp401_data), GFP_KERNEL);
714 data->client = client;
715 mutex_init(&data->update_lock);
716 data->kind = id->driver_data;
718 /* Initialize the TMP401 chip */
719 status = tmp401_init_client(data, client);
723 /* Register sysfs hooks */
724 data->groups[groups++] = &tmp401_group;
726 /* Register additional tmp411 sysfs hooks */
727 if (data->kind == tmp411)
728 data->groups[groups++] = &tmp411_group;
730 /* Register additional tmp432 sysfs hooks */
731 if (data->kind == tmp432)
732 data->groups[groups++] = &tmp432_group;
734 if (data->kind == tmp461)
735 data->groups[groups++] = &tmp461_group;
737 hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
739 if (IS_ERR(hwmon_dev))
740 return PTR_ERR(hwmon_dev);
742 dev_info(dev, "Detected TI %s chip\n", names[data->kind]);
747 static struct i2c_driver tmp401_driver = {
748 .class = I2C_CLASS_HWMON,
752 .probe = tmp401_probe,
753 .id_table = tmp401_id,
754 .detect = tmp401_detect,
755 .address_list = normal_i2c,
758 module_i2c_driver(tmp401_driver);
760 MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
761 MODULE_DESCRIPTION("Texas Instruments TMP401 temperature sensor driver");
762 MODULE_LICENSE("GPL");