emc1403.c

  1// SPDX-License-Identifier: GPL-2.0-only
  2/*
  3 * emc1403.c - SMSC Thermal Driver
  4 *
  5 * Copyright (C) 2008 Intel Corp
  6 *
  7 *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  8 *
  9 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 10 */
 11
 12#include <linux/module.h>
 13#include <linux/init.h>
 14#include <linux/slab.h>
 15#include <linux/i2c.h>
 16#include <linux/hwmon.h>
 17#include <linux/hwmon-sysfs.h>
 18#include <linux/err.h>
 19#include <linux/sysfs.h>
 20#include <linux/regmap.h>
 21#include <linux/util_macros.h>
 22
 23#define THERMAL_PID_REG		0xfd
 24#define THERMAL_SMSC_ID_REG	0xfe
 25#define THERMAL_REVISION_REG	0xff
 26
 27enum emc1403_chip { emc1402, emc1403, emc1404, emc1428 };
 28
 29struct thermal_data {
 30	enum emc1403_chip chip;
 31	struct regmap *regmap;
 32};
 33
 34static ssize_t power_state_show(struct device *dev, struct device_attribute *attr, char *buf)
 35{
 36	struct thermal_data *data = dev_get_drvdata(dev);
 37	unsigned int val;
 38	int retval;
 39
 40	retval = regmap_read(data->regmap, 0x03, &val);
 41	if (retval < 0)
 42		return retval;
 43	return sprintf(buf, "%d\n", !!(val & BIT(6)));
 44}
 45
 46static ssize_t power_state_store(struct device *dev, struct device_attribute *attr,
 47				 const char *buf, size_t count)
 48{
 49	struct thermal_data *data = dev_get_drvdata(dev);
 50	unsigned long val;
 51	int retval;
 52
 53	if (kstrtoul(buf, 10, &val))
 54		return -EINVAL;
 55
 56	retval = regmap_update_bits(data->regmap, 0x03, BIT(6),
 57				    val ? BIT(6) : 0);
 58	if (retval < 0)
 59		return retval;
 60	return count;
 61}
 62
 63static DEVICE_ATTR_RW(power_state);
 64
 65static struct attribute *emc1403_attrs[] = {
 66	&dev_attr_power_state.attr,
 67	NULL
 68};
 69ATTRIBUTE_GROUPS(emc1403);
 70
 71static int emc1403_detect(struct i2c_client *client,
 72			struct i2c_board_info *info)
 73{
 74	int id;
 75	/* Check if thermal chip is SMSC and EMC1403 or EMC1423 */
 76
 77	id = i2c_smbus_read_byte_data(client, THERMAL_SMSC_ID_REG);
 78	if (id != 0x5d)
 79		return -ENODEV;
 80
 81	id = i2c_smbus_read_byte_data(client, THERMAL_PID_REG);
 82	switch (id) {
 83	case 0x20:
 84		strscpy(info->type, "emc1402", I2C_NAME_SIZE);
 85		break;
 86	case 0x21:
 87		strscpy(info->type, "emc1403", I2C_NAME_SIZE);
 88		break;
 89	case 0x22:
 90		strscpy(info->type, "emc1422", I2C_NAME_SIZE);
 91		break;
 92	case 0x23:
 93		strscpy(info->type, "emc1423", I2C_NAME_SIZE);
 94		break;
 95	case 0x25:
 96		strscpy(info->type, "emc1404", I2C_NAME_SIZE);
 97		break;
 98	case 0x27:
 99		strscpy(info->type, "emc1424", I2C_NAME_SIZE);
100		break;
101	case 0x29:
102		strscpy(info->type, "emc1428", I2C_NAME_SIZE);
103		break;
104	case 0x59:
105		strscpy(info->type, "emc1438", I2C_NAME_SIZE);
106		break;
107	case 0x60:
108		strscpy(info->type, "emc1442", I2C_NAME_SIZE);
109		break;
110	default:
111		return -ENODEV;
112	}
113
114	id = i2c_smbus_read_byte_data(client, THERMAL_REVISION_REG);
115	if (id < 0x01 || id > 0x04)
116		return -ENODEV;
117
118	return 0;
119}
120
121static bool emc1403_regmap_is_volatile(struct device *dev, unsigned int reg)
122{
123	switch (reg) {
124	case 0x00:	/* internal diode high byte */
125	case 0x01:	/* external diode 1 high byte */
126	case 0x02:	/* status */
127	case 0x10:	/* external diode 1 low byte */
128	case 0x1b:	/* external diode fault */
129	case 0x23:	/* external diode 2 high byte */
130	case 0x24:	/* external diode 2 low byte */
131	case 0x29:	/* internal diode low byte */
132	case 0x2a:	/* externl diode 3 high byte */
133	case 0x2b:	/* external diode 3 low byte */
134	case 0x35:	/* high limit status */
135	case 0x36:	/* low limit status */
136	case 0x37:	/* therm limit status */
137	case 0x41:	/* external diode 4 high byte */
138	case 0x42:	/* external diode 4 low byte */
139	case 0x43:	/* external diode 5 high byte */
140	case 0x44:	/* external diode 5 low byte */
141	case 0x45:	/* external diode 6 high byte */
142	case 0x46:	/* external diode 6 low byte */
143	case 0x47:	/* external diode 7 high byte */
144	case 0x48:	/* external diode 7 low byte */
145		return true;
146	default:
147		return false;
148	}
149}
150
151static const struct regmap_config emc1403_regmap_config = {
152	.reg_bits = 8,
153	.val_bits = 8,
154	.cache_type = REGCACHE_MAPLE,
155	.volatile_reg = emc1403_regmap_is_volatile,
156};
157
158enum emc1403_reg_map {temp_min, temp_max, temp_crit, temp_input};
159
160static u8 ema1403_temp_map[] = {
161	[hwmon_temp_min] = temp_min,
162	[hwmon_temp_max] = temp_max,
163	[hwmon_temp_crit] = temp_crit,
164	[hwmon_temp_input] = temp_input,
165};
166
167static u8 emc1403_temp_regs[][4] = {
168	[0] = {
169		[temp_min] = 0x06,
170		[temp_max] = 0x05,
171		[temp_crit] = 0x20,
172		[temp_input] = 0x00,
173	},
174	[1] = {
175		[temp_min] = 0x08,
176		[temp_max] = 0x07,
177		[temp_crit] = 0x19,
178		[temp_input] = 0x01,
179	},
180	[2] = {
181		[temp_min] = 0x16,
182		[temp_max] = 0x15,
183		[temp_crit] = 0x1a,
184		[temp_input] = 0x23,
185	},
186	[3] = {
187		[temp_min] = 0x2d,
188		[temp_max] = 0x2c,
189		[temp_crit] = 0x30,
190		[temp_input] = 0x2a,
191	},
192	[4] = {
193		[temp_min] = 0x51,
194		[temp_max] = 0x50,
195		[temp_crit] = 0x64,
196		[temp_input] = 0x41,
197	},
198	[5] = {
199		[temp_min] = 0x55,
200		[temp_max] = 0x54,
201		[temp_crit] = 0x65,
202		[temp_input] = 0x43
203	},
204	[6] = {
205		[temp_min] = 0x59,
206		[temp_max] = 0x58,
207		[temp_crit] = 0x66,
208		[temp_input] = 0x45,
209	},
210	[7] = {
211		[temp_min] = 0x5d,
212		[temp_max] = 0x5c,
213		[temp_crit] = 0x67,
214		[temp_input] = 0x47,
215	},
216};
217
218static s8 emc1403_temp_regs_low[][4] = {
219	[0] = {
220		[temp_min] = -1,
221		[temp_max] = -1,
222		[temp_crit] = -1,
223		[temp_input] = 0x29,
224	},
225	[1] = {
226		[temp_min] = 0x14,
227		[temp_max] = 0x13,
228		[temp_crit] = -1,
229		[temp_input] = 0x10,
230	},
231	[2] = {
232		[temp_min] = 0x18,
233		[temp_max] = 0x17,
234		[temp_crit] = -1,
235		[temp_input] = 0x24,
236	},
237	[3] = {
238		[temp_min] = 0x2f,
239		[temp_max] = 0x2e,
240		[temp_crit] = -1,
241		[temp_input] = 0x2b,
242	},
243	[4] = {
244		[temp_min] = 0x53,
245		[temp_max] = 0x52,
246		[temp_crit] = -1,
247		[temp_input] = 0x42,
248	},
249	[5] = {
250		[temp_min] = 0x57,
251		[temp_max] = 0x56,
252		[temp_crit] = -1,
253		[temp_input] = 0x44,
254	},
255	[6] = {
256		[temp_min] = 0x5b,
257		[temp_max] = 0x5a,
258		[temp_crit] = -1,
259		[temp_input] = 0x46,
260	},
261	[7] = {
262		[temp_min] = 0x5f,
263		[temp_max] = 0x5e,
264		[temp_crit] = -1,
265		[temp_input] = 0x48,
266	},
267};
268
269static int emc1403_get_temp(struct thermal_data *data, int channel,
270			    enum emc1403_reg_map map, long *val)
271{
272	unsigned int regvalh;
273	unsigned int regvall = 0;
274	int ret;
275	s8 reg;
276
277	ret = regmap_read(data->regmap, emc1403_temp_regs[channel][map], &regvalh);
278	if (ret < 0)
279		return ret;
280
281	reg = emc1403_temp_regs_low[channel][map];
282	if (reg >= 0) {
283		ret = regmap_read(data->regmap, reg, &regvall);
284		if (ret < 0)
285			return ret;
286	}
287
288	if (data->chip == emc1428)
289		*val = sign_extend32((regvalh << 3) | (regvall >> 5), 10) * 125;
290	else
291		*val = ((regvalh << 3) | (regvall >> 5)) * 125;
292
293	return 0;
294}
295
296static int emc1403_get_hyst(struct thermal_data *data, int channel,
297			    enum emc1403_reg_map map, long *val)
298{
299	int hyst, ret;
300	long limit;
301
302	ret = emc1403_get_temp(data, channel, map, &limit);
303	if (ret < 0)
304		return ret;
305	ret = regmap_read(data->regmap, 0x21, &hyst);
306	if (ret < 0)
307		return ret;
308	if (map == temp_min)
309		*val = limit + hyst * 1000;
310	else
311		*val = limit - hyst * 1000;
312	return 0;
313}
314
315static int emc1403_temp_read(struct thermal_data *data, u32 attr, int channel, long *val)
316{
317	unsigned int regval;
318	int ret;
319
320	switch (attr) {
321	case hwmon_temp_min:
322	case hwmon_temp_max:
323	case hwmon_temp_crit:
324	case hwmon_temp_input:
325		ret = emc1403_get_temp(data, channel, ema1403_temp_map[attr], val);
326		break;
327	case hwmon_temp_min_hyst:
328		ret = emc1403_get_hyst(data, channel, temp_min, val);
329		break;
330	case hwmon_temp_max_hyst:
331		ret = emc1403_get_hyst(data, channel, temp_max, val);
332		break;
333	case hwmon_temp_crit_hyst:
334		ret = emc1403_get_hyst(data, channel, temp_crit, val);
335		break;
336	case hwmon_temp_min_alarm:
337		if (data->chip == emc1402) {
338			ret = regmap_read(data->regmap, 0x02, &regval);
339			if (ret < 0)
340				break;
341			*val = !!(regval & BIT(5 - 2 * channel));
342		} else {
343			ret = regmap_read(data->regmap, 0x36, &regval);
344			if (ret < 0)
345				break;
346			*val = !!(regval & BIT(channel));
347		}
348		break;
349	case hwmon_temp_max_alarm:
350		if (data->chip == emc1402) {
351			ret = regmap_read(data->regmap, 0x02, &regval);
352			if (ret < 0)
353				break;
354			*val = !!(regval & BIT(6 - 2 * channel));
355		} else {
356			ret = regmap_read(data->regmap, 0x35, &regval);
357			if (ret < 0)
358				break;
359			*val = !!(regval & BIT(channel));
360		}
361		break;
362	case hwmon_temp_crit_alarm:
363		if (data->chip == emc1402) {
364			ret = regmap_read(data->regmap, 0x02, &regval);
365			if (ret < 0)
366				break;
367			*val = !!(regval & BIT(channel));
368		} else {
369			ret = regmap_read(data->regmap, 0x37, &regval);
370			if (ret < 0)
371				break;
372			*val = !!(regval & BIT(channel));
373		}
374		break;
375	case hwmon_temp_fault:
376		ret = regmap_read(data->regmap, 0x1b, &regval);
377		if (ret < 0)
378			break;
379		*val = !!(regval & BIT(channel));
380		break;
381	default:
382		return -EOPNOTSUPP;
383	}
384	return ret;
385}
386
387static int emc1403_get_convrate(struct thermal_data *data, long *val)
388{
389	unsigned int convrate;
390	int ret;
391
392	ret = regmap_read(data->regmap, 0x04, &convrate);
393	if (ret < 0)
394		return ret;
395	if (convrate > 10)
396		convrate = 4;
397
398	*val = 16000 >> convrate;
399	return 0;
400}
401
402static int emc1403_chip_read(struct thermal_data *data, u32 attr, long *val)
403{
404	switch (attr) {
405	case hwmon_chip_update_interval:
406		return emc1403_get_convrate(data, val);
407	default:
408		return -EOPNOTSUPP;
409	}
410}
411
412static int emc1403_read(struct device *dev, enum hwmon_sensor_types type,
413			u32 attr, int channel, long *val)
414{
415	struct thermal_data *data = dev_get_drvdata(dev);
416
417	switch (type) {
418	case hwmon_temp:
419		return emc1403_temp_read(data, attr, channel, val);
420	case hwmon_chip:
421		return emc1403_chip_read(data, attr, val);
422	default:
423		return -EOPNOTSUPP;
424	}
425}
426
427static int emc1403_set_hyst(struct thermal_data *data, long val)
428{
429	int hyst, ret;
430	long limit;
431
432	if (data->chip == emc1428)
433		val = clamp_val(val, -128000, 127000);
434	else
435		val = clamp_val(val, 0, 255000);
436
437	ret = emc1403_get_temp(data, 0, temp_crit, &limit);
438	if (ret < 0)
439		return ret;
440
441	hyst = limit - val;
442	if (data->chip == emc1428)
443		hyst = clamp_val(DIV_ROUND_CLOSEST(hyst, 1000), 0, 127);
444	else
445		hyst = clamp_val(DIV_ROUND_CLOSEST(hyst, 1000), 0, 255);
446	return regmap_write(data->regmap, 0x21, hyst);
447}
448
449static int emc1403_set_temp(struct thermal_data *data, int channel,
450			    enum emc1403_reg_map map, long val)
451{
452	unsigned int regval;
453	int ret;
454	u8 regh;
455	s8 regl;
456
457	regh = emc1403_temp_regs[channel][map];
458	regl = emc1403_temp_regs_low[channel][map];
459
460	if (regl >= 0) {
461		if (data->chip == emc1428)
462			val = clamp_val(val, -128000, 127875);
463		else
464			val = clamp_val(val, 0, 255875);
465		regval = DIV_ROUND_CLOSEST(val, 125);
466		ret = regmap_write(data->regmap, regh, (regval >> 3) & 0xff);
467		if (ret < 0)
468			return ret;
469		ret = regmap_write(data->regmap, regl, (regval & 0x07) << 5);
470	} else {
471		if (data->chip == emc1428)
472			val = clamp_val(val, -128000, 127000);
473		else
474			val = clamp_val(val, 0, 255000);
475		regval = DIV_ROUND_CLOSEST(val, 1000);
476		ret = regmap_write(data->regmap, regh, regval);
477	}
478	return ret;
479}
480
481static int emc1403_temp_write(struct thermal_data *data, u32 attr, int channel, long val)
482{
483	switch (attr) {
484	case hwmon_temp_min:
485	case hwmon_temp_max:
486	case hwmon_temp_crit:
487		return emc1403_set_temp(data, channel, ema1403_temp_map[attr], val);
488	case hwmon_temp_crit_hyst:
489		return emc1403_set_hyst(data, val);
490	default:
491		return -EOPNOTSUPP;
492	}
493}
494
495/* Lookup table for temperature conversion times in msec */
496static const u16 ina3221_conv_time[] = {
497	16000, 8000, 4000, 2000, 1000, 500, 250, 125, 62, 31, 16
498};
499
500static int emc1403_set_convrate(struct thermal_data *data, unsigned int interval)
501{
502	int convrate;
503
504	convrate = find_closest_descending(interval, ina3221_conv_time,
505					   ARRAY_SIZE(ina3221_conv_time));
506	return regmap_write(data->regmap, 0x04, convrate);
507}
508
509static int emc1403_chip_write(struct thermal_data *data, u32 attr, long val)
510{
511	switch (attr) {
512	case hwmon_chip_update_interval:
513		return emc1403_set_convrate(data, clamp_val(val, 0, 100000));
514	default:
515		return -EOPNOTSUPP;
516	}
517}
518
519static int emc1403_write(struct device *dev, enum hwmon_sensor_types type,
520			 u32 attr, int channel, long val)
521{
522	struct thermal_data *data = dev_get_drvdata(dev);
523
524	switch (type) {
525	case hwmon_temp:
526		return emc1403_temp_write(data, attr, channel, val);
527	case hwmon_chip:
528		return emc1403_chip_write(data, attr, val);
529	default:
530		return -EOPNOTSUPP;
531	}
532}
533
534static umode_t emc1403_temp_is_visible(const void *_data, u32 attr, int channel)
535{
536	const struct thermal_data *data = _data;
537
538	if (data->chip == emc1402 && channel > 1)
539		return 0;
540	if (data->chip == emc1403 && channel > 2)
541		return 0;
542	if (data->chip != emc1428 && channel > 3)
543		return 0;
544
545	switch (attr) {
546	case hwmon_temp_input:
547	case hwmon_temp_min_alarm:
548	case hwmon_temp_max_alarm:
549	case hwmon_temp_crit_alarm:
550	case hwmon_temp_fault:
551	case hwmon_temp_min_hyst:
552	case hwmon_temp_max_hyst:
553		return 0444;
554	case hwmon_temp_min:
555	case hwmon_temp_max:
556	case hwmon_temp_crit:
557		return 0644;
558	case hwmon_temp_crit_hyst:
559		if (channel == 0)
560			return 0644;
561		return 0444;
562	default:
563		return 0;
564	}
565}
566
567static umode_t emc1403_chip_is_visible(const void *_data, u32 attr)
568{
569	switch (attr) {
570	case hwmon_chip_update_interval:
571		return 0644;
572	default:
573		return 0;
574	}
575}
576
577static umode_t emc1403_is_visible(const void *data, enum hwmon_sensor_types type,
578				  u32 attr, int channel)
579{
580	switch (type) {
581	case hwmon_temp:
582		return emc1403_temp_is_visible(data, attr, channel);
583	case hwmon_chip:
584		return emc1403_chip_is_visible(data, attr);
585	default:
586		return 0;
587	}
588}
589
590static const struct hwmon_channel_info * const emc1403_info[] = {
591	HWMON_CHANNEL_INFO(chip, HWMON_C_UPDATE_INTERVAL),
592	HWMON_CHANNEL_INFO(temp,
593			   HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX |
594			   HWMON_T_CRIT | HWMON_T_MIN_HYST | HWMON_T_MAX_HYST |
595			   HWMON_T_CRIT_HYST | HWMON_T_MIN_ALARM |
596			   HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM,
597			   HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX |
598			   HWMON_T_CRIT | HWMON_T_MIN_HYST | HWMON_T_MAX_HYST |
599			   HWMON_T_CRIT_HYST | HWMON_T_MIN_ALARM |
600			   HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM | HWMON_T_FAULT,
601			   HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX |
602			   HWMON_T_CRIT | HWMON_T_MIN_HYST | HWMON_T_MAX_HYST |
603			   HWMON_T_CRIT_HYST | HWMON_T_MIN_ALARM |
604			   HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM | HWMON_T_FAULT,
605			   HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX |
606			   HWMON_T_CRIT | HWMON_T_MIN_HYST | HWMON_T_MAX_HYST |
607			   HWMON_T_CRIT_HYST | HWMON_T_MIN_ALARM |
608			   HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM | HWMON_T_FAULT,
609			   HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX |
610			   HWMON_T_CRIT | HWMON_T_MIN_HYST | HWMON_T_MAX_HYST |
611			   HWMON_T_CRIT_HYST | HWMON_T_MIN_ALARM |
612			   HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM | HWMON_T_FAULT,
613			   HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX |
614			   HWMON_T_CRIT | HWMON_T_MIN_HYST | HWMON_T_MAX_HYST |
615			   HWMON_T_CRIT_HYST | HWMON_T_MIN_ALARM |
616			   HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM | HWMON_T_FAULT,
617			   HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX |
618			   HWMON_T_CRIT | HWMON_T_MIN_HYST | HWMON_T_MAX_HYST |
619			   HWMON_T_CRIT_HYST | HWMON_T_MIN_ALARM |
620			   HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM | HWMON_T_FAULT,
621			   HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX |
622			   HWMON_T_CRIT | HWMON_T_MIN_HYST | HWMON_T_MAX_HYST |
623			   HWMON_T_CRIT_HYST | HWMON_T_MIN_ALARM |
624			   HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM | HWMON_T_FAULT
625			   ),
626	NULL
627};
628
629static const struct hwmon_ops emc1403_hwmon_ops = {
630	.is_visible = emc1403_is_visible,
631	.read = emc1403_read,
632	.write = emc1403_write,
633};
634
635static const struct hwmon_chip_info emc1403_chip_info = {
636	.ops = &emc1403_hwmon_ops,
637	.info = emc1403_info,
638};
639
640/* Last digit of chip name indicates number of channels */
641static const struct i2c_device_id emc1403_idtable[] = {
642	{ "emc1402", emc1402 },
643	{ "emc1403", emc1403 },
644	{ "emc1404", emc1404 },
645	{ "emc1412", emc1402 },
646	{ "emc1413", emc1403 },
647	{ "emc1414", emc1404 },
648	{ "emc1422", emc1402 },
649	{ "emc1423", emc1403 },
650	{ "emc1424", emc1404 },
651	{ "emc1428", emc1428 },
652	{ "emc1438", emc1428 },
653	{ "emc1442", emc1402 },
654	{ }
655};
656MODULE_DEVICE_TABLE(i2c, emc1403_idtable);
657
658static int emc1403_probe(struct i2c_client *client)
659{
660	struct thermal_data *data;
661	struct device *hwmon_dev;
662	const struct i2c_device_id *id = i2c_match_id(emc1403_idtable, client);
663
664	data = devm_kzalloc(&client->dev, sizeof(struct thermal_data),
665			    GFP_KERNEL);
666	if (!data)
667		return -ENOMEM;
668
669	data->chip = id->driver_data;
670	data->regmap = devm_regmap_init_i2c(client, &emc1403_regmap_config);
671	if (IS_ERR(data->regmap))
672		return PTR_ERR(data->regmap);
673
674	hwmon_dev = devm_hwmon_device_register_with_info(&client->dev,
675							 client->name, data,
676							 &emc1403_chip_info,
677							 emc1403_groups);
678	return PTR_ERR_OR_ZERO(hwmon_dev);
679}
680
681static const unsigned short emc1403_address_list[] = {
682	0x18, 0x1c, 0x29, 0x3c, 0x4c, 0x4d, 0x5c, I2C_CLIENT_END
683};
684
685static struct i2c_driver sensor_emc1403 = {
686	.class = I2C_CLASS_HWMON,
687	.driver = {
688		.name = "emc1403",
689	},
690	.detect = emc1403_detect,
691	.probe = emc1403_probe,
692	.id_table = emc1403_idtable,
693	.address_list = emc1403_address_list,
694};
695
696module_i2c_driver(sensor_emc1403);
697
698MODULE_AUTHOR("Kalhan Trisal <kalhan.trisal@intel.com");
699MODULE_DESCRIPTION("emc1403 Thermal Driver");
700MODULE_LICENSE("GPL v2");