[deliverable/linux.git] / drivers / hwmon / tmp102.c

/* Texas Instruments TMP102 SMBus temperature sensor driver
 *
 * Copyright (C) 2010 Steven King <sfking@fdwdc.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA
 */

#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/err.h>
#include <linux/mutex.h>
#include <linux/device.h>
#include <linux/jiffies.h>
#include <linux/thermal.h>
#include <linux/of.h>

#define	DRIVER_NAME "tmp102"

#define	TMP102_TEMP_REG			0x00
#define	TMP102_CONF_REG			0x01
/* note: these bit definitions are byte swapped */
#define		TMP102_CONF_SD		0x0100
#define		TMP102_CONF_TM		0x0200
#define		TMP102_CONF_POL		0x0400
#define		TMP102_CONF_F0		0x0800
#define		TMP102_CONF_F1		0x1000
#define		TMP102_CONF_R0		0x2000
#define		TMP102_CONF_R1		0x4000
#define		TMP102_CONF_OS		0x8000
#define		TMP102_CONF_EM		0x0010
#define		TMP102_CONF_AL		0x0020
#define		TMP102_CONF_CR0		0x0040
#define		TMP102_CONF_CR1		0x0080
#define	TMP102_TLOW_REG			0x02
#define	TMP102_THIGH_REG		0x03

struct tmp102 {
	struct device *hwmon_dev;
	struct thermal_zone_device *tz;
	struct mutex lock;
	u16 config_orig;
	unsigned long last_update;
	int temp[3];
};

/* convert left adjusted 13-bit TMP102 register value to milliCelsius */
static inline int tmp102_reg_to_mC(s16 val)
{
	return ((val & ~0x01) * 1000) / 128;
}

/* convert milliCelsius to left adjusted 13-bit TMP102 register value */
static inline u16 tmp102_mC_to_reg(int val)
{
	return (val * 128) / 1000;
}

static const u8 tmp102_reg[] = {
	TMP102_TEMP_REG,
	TMP102_TLOW_REG,
	TMP102_THIGH_REG,
};

static struct tmp102 *tmp102_update_device(struct i2c_client *client)
{
	struct tmp102 *tmp102 = i2c_get_clientdata(client);

	mutex_lock(&tmp102->lock);
	if (time_after(jiffies, tmp102->last_update + HZ / 3)) {
		int i;
		for (i = 0; i < ARRAY_SIZE(tmp102->temp); ++i) {
			int status = i2c_smbus_read_word_swapped(client,
								 tmp102_reg[i]);
			if (status > -1)
				tmp102->temp[i] = tmp102_reg_to_mC(status);
		}
		tmp102->last_update = jiffies;
	}
	mutex_unlock(&tmp102->lock);
	return tmp102;
}

static int tmp102_read_temp(void *dev, long *temp)
{
	struct tmp102 *tmp102 = tmp102_update_device(to_i2c_client(dev));

	*temp = tmp102->temp[0];

	return 0;
}

static ssize_t tmp102_show_temp(struct device *dev,
				struct device_attribute *attr,
				char *buf)
{
	struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
	struct tmp102 *tmp102 = tmp102_update_device(to_i2c_client(dev));

	return sprintf(buf, "%d\n", tmp102->temp[sda->index]);
}

static ssize_t tmp102_set_temp(struct device *dev,
			       struct device_attribute *attr,
			       const char *buf, size_t count)
{
	struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
	struct i2c_client *client = to_i2c_client(dev);
	struct tmp102 *tmp102 = i2c_get_clientdata(client);
	long val;
	int status;

	if (kstrtol(buf, 10, &val) < 0)
		return -EINVAL;
	val = clamp_val(val, -256000, 255000);

	mutex_lock(&tmp102->lock);
	tmp102->temp[sda->index] = val;
	status = i2c_smbus_write_word_swapped(client, tmp102_reg[sda->index],
					      tmp102_mC_to_reg(val));
	mutex_unlock(&tmp102->lock);
	return status ? : count;
}

static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, tmp102_show_temp, NULL , 0);

static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO, tmp102_show_temp,
			  tmp102_set_temp, 1);

static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, tmp102_show_temp,
			  tmp102_set_temp, 2);

static struct attribute *tmp102_attributes[] = {
	&sensor_dev_attr_temp1_input.dev_attr.attr,
	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
	&sensor_dev_attr_temp1_max.dev_attr.attr,
	NULL
};

static const struct attribute_group tmp102_attr_group = {
	.attrs = tmp102_attributes,
};

#define TMP102_CONFIG  (TMP102_CONF_TM | TMP102_CONF_EM | TMP102_CONF_CR1)
#define TMP102_CONFIG_RD_ONLY (TMP102_CONF_R0 | TMP102_CONF_R1 | TMP102_CONF_AL)

static int tmp102_probe(struct i2c_client *client,
				  const struct i2c_device_id *id)
{
	struct tmp102 *tmp102;
	int status;

	if (!i2c_check_functionality(client->adapter,
				     I2C_FUNC_SMBUS_WORD_DATA)) {
		dev_err(&client->dev,
			"adapter doesn't support SMBus word transactions\n");
		return -ENODEV;
	}

	tmp102 = devm_kzalloc(&client->dev, sizeof(*tmp102), GFP_KERNEL);
	if (!tmp102)
		return -ENOMEM;

	i2c_set_clientdata(client, tmp102);

	status = i2c_smbus_read_word_swapped(client, TMP102_CONF_REG);
	if (status < 0) {
		dev_err(&client->dev, "error reading config register\n");
		return status;
	}
	tmp102->config_orig = status;
	status = i2c_smbus_write_word_swapped(client, TMP102_CONF_REG,
					      TMP102_CONFIG);
	if (status < 0) {
		dev_err(&client->dev, "error writing config register\n");
		goto fail_restore_config;
	}
	status = i2c_smbus_read_word_swapped(client, TMP102_CONF_REG);
	if (status < 0) {
		dev_err(&client->dev, "error reading config register\n");
		goto fail_restore_config;
	}
	status &= ~TMP102_CONFIG_RD_ONLY;
	if (status != TMP102_CONFIG) {
		dev_err(&client->dev, "config settings did not stick\n");
		status = -ENODEV;
		goto fail_restore_config;
	}
	tmp102->last_update = jiffies - HZ;
	mutex_init(&tmp102->lock);

	status = sysfs_create_group(&client->dev.kobj, &tmp102_attr_group);
	if (status) {
		dev_dbg(&client->dev, "could not create sysfs files\n");
		goto fail_restore_config;
	}
	tmp102->hwmon_dev = hwmon_device_register(&client->dev);
	if (IS_ERR(tmp102->hwmon_dev)) {
		dev_dbg(&client->dev, "unable to register hwmon device\n");
		status = PTR_ERR(tmp102->hwmon_dev);
		goto fail_remove_sysfs;
	}

	tmp102->tz = thermal_zone_of_sensor_register(&client->dev, 0,
						     &client->dev,
						     tmp102_read_temp, NULL);
	if (IS_ERR(tmp102->tz))
		tmp102->tz = NULL;

	dev_info(&client->dev, "initialized\n");

	return 0;

fail_remove_sysfs:
	sysfs_remove_group(&client->dev.kobj, &tmp102_attr_group);
fail_restore_config:
	i2c_smbus_write_word_swapped(client, TMP102_CONF_REG,
				     tmp102->config_orig);
	return status;
}

static int tmp102_remove(struct i2c_client *client)
{
	struct tmp102 *tmp102 = i2c_get_clientdata(client);

	thermal_zone_of_sensor_unregister(&client->dev, tmp102->tz);
	hwmon_device_unregister(tmp102->hwmon_dev);
	sysfs_remove_group(&client->dev.kobj, &tmp102_attr_group);

	/* Stop monitoring if device was stopped originally */
	if (tmp102->config_orig & TMP102_CONF_SD) {
		int config;

		config = i2c_smbus_read_word_swapped(client, TMP102_CONF_REG);
		if (config >= 0)
			i2c_smbus_write_word_swapped(client, TMP102_CONF_REG,
						     config | TMP102_CONF_SD);
	}

	return 0;
}

#ifdef CONFIG_PM
static int tmp102_suspend(struct device *dev)
{
	struct i2c_client *client = to_i2c_client(dev);
	int config;

	config = i2c_smbus_read_word_swapped(client, TMP102_CONF_REG);
	if (config < 0)
		return config;

	config |= TMP102_CONF_SD;
	return i2c_smbus_write_word_swapped(client, TMP102_CONF_REG, config);
}

static int tmp102_resume(struct device *dev)
{
	struct i2c_client *client = to_i2c_client(dev);
	int config;

	config = i2c_smbus_read_word_swapped(client, TMP102_CONF_REG);
	if (config < 0)
		return config;

	config &= ~TMP102_CONF_SD;
	return i2c_smbus_write_word_swapped(client, TMP102_CONF_REG, config);
}

static const struct dev_pm_ops tmp102_dev_pm_ops = {
	.suspend	= tmp102_suspend,
	.resume		= tmp102_resume,
};

#define TMP102_DEV_PM_OPS (&tmp102_dev_pm_ops)
#else
#define	TMP102_DEV_PM_OPS NULL
#endif /* CONFIG_PM */

static const struct i2c_device_id tmp102_id[] = {
	{ "tmp102", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, tmp102_id);

static struct i2c_driver tmp102_driver = {
	.driver.name	= DRIVER_NAME,
	.driver.pm	= TMP102_DEV_PM_OPS,
	.probe		= tmp102_probe,
	.remove		= tmp102_remove,
	.id_table	= tmp102_id,
};

module_i2c_driver(tmp102_driver);

MODULE_AUTHOR("Steven King <sfking@fdwdc.com>");
MODULE_DESCRIPTION("Texas Instruments TMP102 temperature sensor driver");
MODULE_LICENSE("GPL");
Commit	Line	Data
cff37c9e	1	/* Texas Instruments TMP102 SMBus temperature sensor driver
beb1b6bb	2	*
cff37c9e	3	* Copyright (C) 2010 Steven King <sfking@fdwdc.com>
beb1b6bb SK	4	*
	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License as published by
	7	* the Free Software Foundation; either version 2 of the License, or
	8	* (at your option) any later version.
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program; if not, write to the Free Software
	17	* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA
	18	*/
	19
beb1b6bb SK	20	#include <linux/module.h>
	21	#include <linux/init.h>
	22	#include <linux/slab.h>
	23	#include <linux/i2c.h>
	24	#include <linux/hwmon.h>
	25	#include <linux/hwmon-sysfs.h>
	26	#include <linux/err.h>
	27	#include <linux/mutex.h>
cff37c9e	28	#include <linux/device.h>
dcd8f392	29	#include <linux/jiffies.h>
6a027523 EV	30	#include <linux/thermal.h>
6a027523 EV	31	#include <linux/of.h>
beb1b6bb SK	32
	33	#define DRIVER_NAME "tmp102"
	34
	35	#define TMP102_TEMP_REG 0x00
	36	#define TMP102_CONF_REG 0x01
	37	/* note: these bit definitions are byte swapped */
	38	#define TMP102_CONF_SD 0x0100
	39	#define TMP102_CONF_TM 0x0200
	40	#define TMP102_CONF_POL 0x0400
	41	#define TMP102_CONF_F0 0x0800
	42	#define TMP102_CONF_F1 0x1000
	43	#define TMP102_CONF_R0 0x2000
	44	#define TMP102_CONF_R1 0x4000
	45	#define TMP102_CONF_OS 0x8000
	46	#define TMP102_CONF_EM 0x0010
	47	#define TMP102_CONF_AL 0x0020
	48	#define TMP102_CONF_CR0 0x0040
	49	#define TMP102_CONF_CR1 0x0080
	50	#define TMP102_TLOW_REG 0x02
	51	#define TMP102_THIGH_REG 0x03
	52
	53	struct tmp102 {
	54	struct device *hwmon_dev;
6a027523	55	struct thermal_zone_device *tz;
beb1b6bb	56	struct mutex lock;
38806bda	57	u16 config_orig;
beb1b6bb SK	58	unsigned long last_update;
	59	int temp[3];
	60	};
	61
cff37c9e JD	62	/* convert left adjusted 13-bit TMP102 register value to milliCelsius */
cff37c9e JD	63	static inline int tmp102_reg_to_mC(s16 val)
beb1b6bb	64	{
cff37c9e	65	return ((val & ~0x01) * 1000) / 128;
beb1b6bb SK	66	}
beb1b6bb SK	67
cff37c9e JD	68	/* convert milliCelsius to left adjusted 13-bit TMP102 register value */
cff37c9e JD	69	static inline u16 tmp102_mC_to_reg(int val)
beb1b6bb SK	70	{
	71	return (val * 128) / 1000;
	72	}
	73
	74	static const u8 tmp102_reg[] = {
	75	TMP102_TEMP_REG,
	76	TMP102_TLOW_REG,
	77	TMP102_THIGH_REG,
	78	};
	79
	80	static struct tmp102 tmp102_update_device(struct i2c_client client)
	81	{
	82	struct tmp102 *tmp102 = i2c_get_clientdata(client);
	83
	84	mutex_lock(&tmp102->lock);
cff37c9e	85	if (time_after(jiffies, tmp102->last_update + HZ / 3)) {
beb1b6bb SK	86	int i;
beb1b6bb SK	87	for (i = 0; i < ARRAY_SIZE(tmp102->temp); ++i) {
90f4102c JD	88	int status = i2c_smbus_read_word_swapped(client,
90f4102c JD	89	tmp102_reg[i]);
beb1b6bb SK	90	if (status > -1)
	91	tmp102->temp[i] = tmp102_reg_to_mC(status);
	92	}
	93	tmp102->last_update = jiffies;
	94	}
	95	mutex_unlock(&tmp102->lock);
	96	return tmp102;
	97	}
	98
6a027523 EV	99	static int tmp102_read_temp(void dev, long temp)
	100	{
	101	struct tmp102 *tmp102 = tmp102_update_device(to_i2c_client(dev));
	102
	103	*temp = tmp102->temp[0];
	104
	105	return 0;
	106	}
	107
beb1b6bb SK	108	static ssize_t tmp102_show_temp(struct device *dev,
	109	struct device_attribute *attr,
	110	char *buf)
	111	{
	112	struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
	113	struct tmp102 *tmp102 = tmp102_update_device(to_i2c_client(dev));
	114
	115	return sprintf(buf, "%d\n", tmp102->temp[sda->index]);
	116	}
	117
	118	static ssize_t tmp102_set_temp(struct device *dev,
	119	struct device_attribute *attr,
	120	const char *buf, size_t count)
	121	{
	122	struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
	123	struct i2c_client *client = to_i2c_client(dev);
	124	struct tmp102 *tmp102 = i2c_get_clientdata(client);
	125	long val;
cff37c9e	126	int status;
beb1b6bb	127
179c4fdb	128	if (kstrtol(buf, 10, &val) < 0)
beb1b6bb	129	return -EINVAL;
2a844c14	130	val = clamp_val(val, -256000, 255000);
cff37c9e	131
beb1b6bb	132	mutex_lock(&tmp102->lock);
cff37c9e	133	tmp102->temp[sda->index] = val;
90f4102c JD	134	status = i2c_smbus_write_word_swapped(client, tmp102_reg[sda->index],
90f4102c JD	135	tmp102_mC_to_reg(val));
beb1b6bb SK	136	mutex_unlock(&tmp102->lock);
	137	return status ? : count;
	138	}
	139
	140	static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, tmp102_show_temp, NULL , 0);
	141
	142	static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IWUSR \| S_IRUGO, tmp102_show_temp,
	143	tmp102_set_temp, 1);
	144
	145	static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR \| S_IRUGO, tmp102_show_temp,
	146	tmp102_set_temp, 2);
	147
	148	static struct attribute *tmp102_attributes[] = {
	149	&sensor_dev_attr_temp1_input.dev_attr.attr,
	150	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
	151	&sensor_dev_attr_temp1_max.dev_attr.attr,
	152	NULL
	153	};
	154
	155	static const struct attribute_group tmp102_attr_group = {
	156	.attrs = tmp102_attributes,
	157	};
	158
	159	#define TMP102_CONFIG (TMP102_CONF_TM \| TMP102_CONF_EM \| TMP102_CONF_CR1)
	160	#define TMP102_CONFIG_RD_ONLY (TMP102_CONF_R0 \| TMP102_CONF_R1 \| TMP102_CONF_AL)
	161
6c931ae1	162	static int tmp102_probe(struct i2c_client *client,
beb1b6bb SK	163	const struct i2c_device_id *id)
	164	{
	165	struct tmp102 *tmp102;
	166	int status;
	167
cff37c9e	168	if (!i2c_check_functionality(client->adapter,
beb1b6bb	169	I2C_FUNC_SMBUS_WORD_DATA)) {
b55f3757 GR	170	dev_err(&client->dev,
b55f3757 GR	171	"adapter doesn't support SMBus word transactions\n");
beb1b6bb SK	172	return -ENODEV;
	173	}
	174
f511a21f GR	175	tmp102 = devm_kzalloc(&client->dev, sizeof(*tmp102), GFP_KERNEL);
f511a21f GR	176	if (!tmp102)
beb1b6bb	177	return -ENOMEM;
f511a21f	178
beb1b6bb SK	179	i2c_set_clientdata(client, tmp102);
beb1b6bb SK	180
90f4102c	181	status = i2c_smbus_read_word_swapped(client, TMP102_CONF_REG);
38806bda JD	182	if (status < 0) {
38806bda JD	183	dev_err(&client->dev, "error reading config register\n");
f511a21f	184	return status;
38806bda JD	185	}
38806bda JD	186	tmp102->config_orig = status;
90f4102c JD	187	status = i2c_smbus_write_word_swapped(client, TMP102_CONF_REG,
90f4102c JD	188	TMP102_CONFIG);
cff37c9e JD	189	if (status < 0) {
cff37c9e JD	190	dev_err(&client->dev, "error writing config register\n");
38806bda	191	goto fail_restore_config;
cff37c9e	192	}
90f4102c	193	status = i2c_smbus_read_word_swapped(client, TMP102_CONF_REG);
beb1b6bb	194	if (status < 0) {
cff37c9e	195	dev_err(&client->dev, "error reading config register\n");
38806bda	196	goto fail_restore_config;
beb1b6bb SK	197	}
	198	status &= ~TMP102_CONFIG_RD_ONLY;
	199	if (status != TMP102_CONFIG) {
cff37c9e JD	200	dev_err(&client->dev, "config settings did not stick\n");
cff37c9e JD	201	status = -ENODEV;
38806bda	202	goto fail_restore_config;
beb1b6bb SK	203	}
	204	tmp102->last_update = jiffies - HZ;
	205	mutex_init(&tmp102->lock);
	206
	207	status = sysfs_create_group(&client->dev.kobj, &tmp102_attr_group);
	208	if (status) {
	209	dev_dbg(&client->dev, "could not create sysfs files\n");
38806bda	210	goto fail_restore_config;
beb1b6bb SK	211	}
	212	tmp102->hwmon_dev = hwmon_device_register(&client->dev);
	213	if (IS_ERR(tmp102->hwmon_dev)) {
	214	dev_dbg(&client->dev, "unable to register hwmon device\n");
	215	status = PTR_ERR(tmp102->hwmon_dev);
38806bda	216	goto fail_remove_sysfs;
beb1b6bb SK	217	}
beb1b6bb SK	218
6a027523 EV	219	tmp102->tz = thermal_zone_of_sensor_register(&client->dev, 0,
	220	&client->dev,
	221	tmp102_read_temp, NULL);
	222	if (IS_ERR(tmp102->tz))
	223	tmp102->tz = NULL;
	224
beb1b6bb SK	225	dev_info(&client->dev, "initialized\n");
	226
	227	return 0;
38806bda JD	228
38806bda JD	229	fail_remove_sysfs:
beb1b6bb	230	sysfs_remove_group(&client->dev.kobj, &tmp102_attr_group);
38806bda	231	fail_restore_config:
90f4102c JD	232	i2c_smbus_write_word_swapped(client, TMP102_CONF_REG,
90f4102c JD	233	tmp102->config_orig);
cff37c9e	234	return status;
beb1b6bb SK	235	}
beb1b6bb SK	236
281dfd0b	237	static int tmp102_remove(struct i2c_client *client)
beb1b6bb SK	238	{
	239	struct tmp102 *tmp102 = i2c_get_clientdata(client);
	240
6a027523	241	thermal_zone_of_sensor_unregister(&client->dev, tmp102->tz);
beb1b6bb SK	242	hwmon_device_unregister(tmp102->hwmon_dev);
beb1b6bb SK	243	sysfs_remove_group(&client->dev.kobj, &tmp102_attr_group);
38806bda JD	244
	245	/* Stop monitoring if device was stopped originally */
	246	if (tmp102->config_orig & TMP102_CONF_SD) {
	247	int config;
	248
90f4102c	249	config = i2c_smbus_read_word_swapped(client, TMP102_CONF_REG);
38806bda	250	if (config >= 0)
90f4102c JD	251	i2c_smbus_write_word_swapped(client, TMP102_CONF_REG,
90f4102c JD	252	config \| TMP102_CONF_SD);
38806bda JD	253	}
38806bda JD	254
beb1b6bb SK	255	return 0;
	256	}
	257
	258	#ifdef CONFIG_PM
	259	static int tmp102_suspend(struct device *dev)
	260	{
	261	struct i2c_client *client = to_i2c_client(dev);
8d4dee98	262	int config;
beb1b6bb	263
90f4102c	264	config = i2c_smbus_read_word_swapped(client, TMP102_CONF_REG);
8d4dee98 JD	265	if (config < 0)
8d4dee98 JD	266	return config;
beb1b6bb	267
8d4dee98	268	config \|= TMP102_CONF_SD;
90f4102c	269	return i2c_smbus_write_word_swapped(client, TMP102_CONF_REG, config);
beb1b6bb SK	270	}
	271
	272	static int tmp102_resume(struct device *dev)
	273	{
	274	struct i2c_client *client = to_i2c_client(dev);
8d4dee98	275	int config;
beb1b6bb	276
90f4102c	277	config = i2c_smbus_read_word_swapped(client, TMP102_CONF_REG);
8d4dee98 JD	278	if (config < 0)
8d4dee98 JD	279	return config;
beb1b6bb	280
8d4dee98	281	config &= ~TMP102_CONF_SD;
90f4102c	282	return i2c_smbus_write_word_swapped(client, TMP102_CONF_REG, config);
beb1b6bb SK	283	}
	284
	285	static const struct dev_pm_ops tmp102_dev_pm_ops = {
	286	.suspend = tmp102_suspend,
	287	.resume = tmp102_resume,
	288	};
	289
	290	#define TMP102_DEV_PM_OPS (&tmp102_dev_pm_ops)
	291	#else
	292	#define TMP102_DEV_PM_OPS NULL
	293	#endif /* CONFIG_PM */
	294
beb1b6bb	295	static const struct i2c_device_id tmp102_id[] = {
cff37c9e	296	{ "tmp102", 0 },
beb1b6bb SK	297	{ }
beb1b6bb SK	298	};
cff37c9e	299	MODULE_DEVICE_TABLE(i2c, tmp102_id);
beb1b6bb SK	300
	301	static struct i2c_driver tmp102_driver = {
	302	.driver.name = DRIVER_NAME,
	303	.driver.pm = TMP102_DEV_PM_OPS,
beb1b6bb	304	.probe = tmp102_probe,
9e5e9b7a	305	.remove = tmp102_remove,
beb1b6bb	306	.id_table = tmp102_id,
beb1b6bb SK	307	};
beb1b6bb SK	308
f0967eea	309	module_i2c_driver(tmp102_driver);
beb1b6bb	310
beb1b6bb SK	311	MODULE_AUTHOR("Steven King <sfking@fdwdc.com>");
	312	MODULE_DESCRIPTION("Texas Instruments TMP102 temperature sensor driver");
	313	MODULE_LICENSE("GPL");