[linux-2.6-block.git] / drivers / hwmon / w83l785ts.c

/*
 * w83l785ts.c - Part of lm_sensors, Linux kernel modules for hardware
 *               monitoring
 * Copyright (C) 2003-2004  Jean Delvare <khali@linux-fr.org>
 *
 * Inspired from the lm83 driver. The W83L785TS-S is a sensor chip made
 * by Winbond. It reports a single external temperature with a 1 deg
 * resolution and a 3 deg accuracy. Datasheet can be obtained from
 * Winbond's website at:
 *   http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/W83L785TS-S.pdf
 *
 * Ported to Linux 2.6 by Wolfgang Ziegler <nuppla@gmx.at> and Jean Delvare
 * <khali@linux-fr.org>.
 *
 * Thanks to James Bolt <james@evilpenguin.com> for benchmarking the read
 * error handling mechanism.
 *
 * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

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

/* How many retries on register read error */
#define MAX_RETRIES	5

/*
 * Address to scan
 * Address is fully defined internally and cannot be changed.
 */

static unsigned short normal_i2c[] = { 0x2e, I2C_CLIENT_END };

/*
 * Insmod parameters
 */

I2C_CLIENT_INSMOD_1(w83l785ts);

/*
 * The W83L785TS-S registers
 * Manufacturer ID is 0x5CA3 for Winbond.
 */

#define W83L785TS_REG_MAN_ID1		0x4D
#define W83L785TS_REG_MAN_ID2		0x4C
#define W83L785TS_REG_CHIP_ID		0x4E
#define W83L785TS_REG_CONFIG		0x40
#define W83L785TS_REG_TYPE		0x52
#define W83L785TS_REG_TEMP		0x27
#define W83L785TS_REG_TEMP_OVER		0x53 /* not sure about this one */

/*
 * Conversions
 * The W83L785TS-S uses signed 8-bit values.
 */

#define TEMP_FROM_REG(val)	((val) * 1000)

/*
 * Functions declaration
 */

static int w83l785ts_attach_adapter(struct i2c_adapter *adapter);
static int w83l785ts_detect(struct i2c_adapter *adapter, int address,
	int kind);
static int w83l785ts_detach_client(struct i2c_client *client);
static u8 w83l785ts_read_value(struct i2c_client *client, u8 reg, u8 defval);
static struct w83l785ts_data *w83l785ts_update_device(struct device *dev);

/*
 * Driver data (common to all clients)
 */
 
static struct i2c_driver w83l785ts_driver = {
	.driver = {
		.name	= "w83l785ts",
	},
	.attach_adapter	= w83l785ts_attach_adapter,
	.detach_client	= w83l785ts_detach_client,
};

/*
 * Client data (each client gets its own)
 */

struct w83l785ts_data {
	struct i2c_client client;
	struct device *hwmon_dev;
	struct mutex update_lock;
	char valid; /* zero until following fields are valid */
	unsigned long last_updated; /* in jiffies */

	/* registers values */
	s8 temp[2]; /* 0: input
		       1: critical limit */
};

/*
 * Sysfs stuff
 */

static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
	char *buf)
{
	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
	struct w83l785ts_data *data = w83l785ts_update_device(dev);
	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
}

static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_temp, NULL, 1);

/*
 * Real code
 */

static int w83l785ts_attach_adapter(struct i2c_adapter *adapter)
{
	if (!(adapter->class & I2C_CLASS_HWMON))
		return 0;
	return i2c_probe(adapter, &addr_data, w83l785ts_detect);
}

/*
 * The following function does more than just detection. If detection
 * succeeds, it also registers the new chip.
 */
static int w83l785ts_detect(struct i2c_adapter *adapter, int address, int kind)
{
	struct i2c_client *new_client;
	struct w83l785ts_data *data;
	int err = 0;


	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
		goto exit;

	if (!(data = kzalloc(sizeof(struct w83l785ts_data), GFP_KERNEL))) {
		err = -ENOMEM;
		goto exit;
	}

	/* The common I2C client data is placed right before the
	 * W83L785TS-specific data. */
	new_client = &data->client;
	i2c_set_clientdata(new_client, data);
	new_client->addr = address;
	new_client->adapter = adapter;
	new_client->driver = &w83l785ts_driver;
	new_client->flags = 0;

	/*
	 * Now we do the remaining detection. A negative kind means that
	 * the driver was loaded with no force parameter (default), so we
	 * must both detect and identify the chip (actually there is only
	 * one possible kind of chip for now, W83L785TS-S). A zero kind means
	 * that the driver was loaded with the force parameter, the detection
	 * step shall be skipped. A positive kind means that the driver
	 * was loaded with the force parameter and a given kind of chip is
	 * requested, so both the detection and the identification steps
	 * are skipped.
	 */
	if (kind < 0) { /* detection */
		if (((w83l785ts_read_value(new_client,
		      W83L785TS_REG_CONFIG, 0) & 0x80) != 0x00)
		 || ((w83l785ts_read_value(new_client,
		      W83L785TS_REG_TYPE, 0) & 0xFC) != 0x00)) {
			dev_dbg(&adapter->dev,
				"W83L785TS-S detection failed at 0x%02x.\n",
				address);
			goto exit_free;
		}
	}

	if (kind <= 0) { /* identification */
		u16 man_id;
		u8 chip_id;

		man_id = (w83l785ts_read_value(new_client,
			 W83L785TS_REG_MAN_ID1, 0) << 8) +
			 w83l785ts_read_value(new_client,
			 W83L785TS_REG_MAN_ID2, 0);
		chip_id = w83l785ts_read_value(new_client,
			  W83L785TS_REG_CHIP_ID, 0);

		if (man_id == 0x5CA3) { /* Winbond */
			if (chip_id == 0x70) { /* W83L785TS-S */
				kind = w83l785ts;			
			}
		}
	
		if (kind <= 0) { /* identification failed */
			dev_info(&adapter->dev,
				 "Unsupported chip (man_id=0x%04X, "
				 "chip_id=0x%02X).\n", man_id, chip_id);
			goto exit_free;
		}
	}

	/* We can fill in the remaining client fields. */
	strlcpy(new_client->name, "w83l785ts", I2C_NAME_SIZE);
	data->valid = 0;
	mutex_init(&data->update_lock);

	/* Default values in case the first read fails (unlikely). */
	data->temp[1] = data->temp[0] = 0;

	/* Tell the I2C layer a new client has arrived. */
	if ((err = i2c_attach_client(new_client))) 
		goto exit_free;

	/*
	 * Initialize the W83L785TS chip
	 * Nothing yet, assume it is already started.
	 */

	err = device_create_file(&new_client->dev,
				 &sensor_dev_attr_temp1_input.dev_attr);
	if (err)
		goto exit_remove;

	err = device_create_file(&new_client->dev,
				 &sensor_dev_attr_temp1_max.dev_attr);
	if (err)
		goto exit_remove;

	/* Register sysfs hooks */
	data->hwmon_dev = hwmon_device_register(&new_client->dev);
	if (IS_ERR(data->hwmon_dev)) {
		err = PTR_ERR(data->hwmon_dev);
		goto exit_remove;
	}

	return 0;

exit_remove:
	device_remove_file(&new_client->dev,
			   &sensor_dev_attr_temp1_input.dev_attr);
	device_remove_file(&new_client->dev,
			   &sensor_dev_attr_temp1_max.dev_attr);
	i2c_detach_client(new_client);
exit_free:
	kfree(data);
exit:
	return err;
}

static int w83l785ts_detach_client(struct i2c_client *client)
{
	struct w83l785ts_data *data = i2c_get_clientdata(client);
	int err;

	hwmon_device_unregister(data->hwmon_dev);
	device_remove_file(&client->dev,
			   &sensor_dev_attr_temp1_input.dev_attr);
	device_remove_file(&client->dev,
			   &sensor_dev_attr_temp1_max.dev_attr);
	if ((err = i2c_detach_client(client)))
		return err;

	kfree(data);
	return 0;
}

static u8 w83l785ts_read_value(struct i2c_client *client, u8 reg, u8 defval)
{
	int value, i;

	/* Frequent read errors have been reported on Asus boards, so we
	 * retry on read errors. If it still fails (unlikely), return the
	 * default value requested by the caller. */
	for (i = 1; i <= MAX_RETRIES; i++) {
		value = i2c_smbus_read_byte_data(client, reg);
		if (value >= 0) {
			dev_dbg(&client->dev, "Read 0x%02x from register "
				"0x%02x.\n", value, reg);
			return value;
		}
		dev_dbg(&client->dev, "Read failed, will retry in %d.\n", i);
		msleep(i);
	}

	dev_err(&client->dev, "Couldn't read value from register 0x%02x. "
		"Please report.\n", reg);
	return defval;
}

static struct w83l785ts_data *w83l785ts_update_device(struct device *dev)
{
	struct i2c_client *client = to_i2c_client(dev);
	struct w83l785ts_data *data = i2c_get_clientdata(client);

	mutex_lock(&data->update_lock);

	if (!data->valid || time_after(jiffies, data->last_updated + HZ * 2)) {
		dev_dbg(&client->dev, "Updating w83l785ts data.\n");
		data->temp[0] = w83l785ts_read_value(client,
				W83L785TS_REG_TEMP, data->temp[0]);
		data->temp[1] = w83l785ts_read_value(client,
				W83L785TS_REG_TEMP_OVER, data->temp[1]);

		data->last_updated = jiffies;
		data->valid = 1;
	}

	mutex_unlock(&data->update_lock);

	return data;
}

static int __init sensors_w83l785ts_init(void)
{
	return i2c_add_driver(&w83l785ts_driver);
}

static void __exit sensors_w83l785ts_exit(void)
{
	i2c_del_driver(&w83l785ts_driver);
}

MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
MODULE_DESCRIPTION("W83L785TS-S driver");
MODULE_LICENSE("GPL");

module_init(sensors_w83l785ts_init);
module_exit(sensors_w83l785ts_exit);
Commit	Line	Data
1da177e4 LT	1	/*
	2	* w83l785ts.c - Part of lm_sensors, Linux kernel modules for hardware
	3	* monitoring
	4	* Copyright (C) 2003-2004 Jean Delvare <khali@linux-fr.org>
	5	*
	6	* Inspired from the lm83 driver. The W83L785TS-S is a sensor chip made
	7	* by Winbond. It reports a single external temperature with a 1 deg
	8	* resolution and a 3 deg accuracy. Datasheet can be obtained from
	9	* Winbond's website at:
	10	* http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/W83L785TS-S.pdf
	11	*
	12	* Ported to Linux 2.6 by Wolfgang Ziegler <nuppla@gmx.at> and Jean Delvare
	13	* <khali@linux-fr.org>.
	14	*
	15	* Thanks to James Bolt <james@evilpenguin.com> for benchmarking the read
	16	* error handling mechanism.
	17	*
	18	* This program is free software; you can redistribute it and/or modify
	19	* it under the terms of the GNU General Public License as published by
	20	* the Free Software Foundation; either version 2 of the License, or
	21	* (at your option) any later version.
	22	*
	23	* This program is distributed in the hope that it will be useful,
	24	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	25	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	26	* GNU General Public License for more details.
	27	*
	28	* You should have received a copy of the GNU General Public License
	29	* along with this program; if not, write to the Free Software
	30	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	31	*/
	32
1da177e4 LT	33	#include <linux/module.h>
	34	#include <linux/delay.h>
	35	#include <linux/init.h>
	36	#include <linux/slab.h>
	37	#include <linux/jiffies.h>
	38	#include <linux/i2c.h>
943b0830	39	#include <linux/hwmon.h>
709439a2	40	#include <linux/hwmon-sysfs.h>
943b0830	41	#include <linux/err.h>
9a61bf63	42	#include <linux/mutex.h>
1da177e4 LT	43
	44	/* How many retries on register read error */
	45	#define MAX_RETRIES 5
	46
	47	/*
	48	* Address to scan
	49	* Address is fully defined internally and cannot be changed.
	50	*/
	51
	52	static unsigned short normal_i2c[] = { 0x2e, I2C_CLIENT_END };
1da177e4 LT	53
	54	/*
	55	* Insmod parameters
	56	*/
	57
f4b50261	58	I2C_CLIENT_INSMOD_1(w83l785ts);
1da177e4 LT	59
	60	/*
	61	* The W83L785TS-S registers
	62	* Manufacturer ID is 0x5CA3 for Winbond.
	63	*/
	64
	65	#define W83L785TS_REG_MAN_ID1 0x4D
	66	#define W83L785TS_REG_MAN_ID2 0x4C
	67	#define W83L785TS_REG_CHIP_ID 0x4E
	68	#define W83L785TS_REG_CONFIG 0x40
	69	#define W83L785TS_REG_TYPE 0x52
	70	#define W83L785TS_REG_TEMP 0x27
	71	#define W83L785TS_REG_TEMP_OVER 0x53 /* not sure about this one */
	72
	73	/*
	74	* Conversions
	75	* The W83L785TS-S uses signed 8-bit values.
	76	*/
	77
cb929eae	78	#define TEMP_FROM_REG(val) ((val) * 1000)
1da177e4 LT	79
	80	/*
	81	* Functions declaration
	82	*/
	83
	84	static int w83l785ts_attach_adapter(struct i2c_adapter *adapter);
	85	static int w83l785ts_detect(struct i2c_adapter *adapter, int address,
	86	int kind);
	87	static int w83l785ts_detach_client(struct i2c_client *client);
	88	static u8 w83l785ts_read_value(struct i2c_client *client, u8 reg, u8 defval);
	89	static struct w83l785ts_data w83l785ts_update_device(struct device dev);
	90
	91	/*
	92	* Driver data (common to all clients)
	93	*/
	94
	95	static struct i2c_driver w83l785ts_driver = {
cdaf7934	96	.driver = {
cdaf7934 LR	97	.name = "w83l785ts",
cdaf7934 LR	98	},
1da177e4 LT	99	.attach_adapter = w83l785ts_attach_adapter,
	100	.detach_client = w83l785ts_detach_client,
	101	};
	102
	103	/*
	104	* Client data (each client gets its own)
	105	*/
	106
	107	struct w83l785ts_data {
	108	struct i2c_client client;
1beeffe4	109	struct device *hwmon_dev;
9a61bf63	110	struct mutex update_lock;
1da177e4 LT	111	char valid; /* zero until following fields are valid */
	112	unsigned long last_updated; /* in jiffies */
	113
	114	/* registers values */
cb929eae	115	s8 temp[2]; /* 0: input
709439a2	116	1: critical limit */
1da177e4 LT	117	};
	118
	119	/*
	120	* Sysfs stuff
	121	*/
	122
709439a2 JD	123	static ssize_t show_temp(struct device dev, struct device_attribute devattr,
709439a2 JD	124	char *buf)
1da177e4	125	{
709439a2	126	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
1da177e4	127	struct w83l785ts_data *data = w83l785ts_update_device(dev);
709439a2	128	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
1da177e4 LT	129	}
1da177e4 LT	130
709439a2 JD	131	static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
709439a2 JD	132	static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_temp, NULL, 1);
1da177e4 LT	133
	134	/*
	135	* Real code
	136	*/
	137
	138	static int w83l785ts_attach_adapter(struct i2c_adapter *adapter)
	139	{
	140	if (!(adapter->class & I2C_CLASS_HWMON))
	141	return 0;
2ed2dc3c	142	return i2c_probe(adapter, &addr_data, w83l785ts_detect);
1da177e4 LT	143	}
	144
	145	/*
	146	* The following function does more than just detection. If detection
	147	* succeeds, it also registers the new chip.
	148	*/
	149	static int w83l785ts_detect(struct i2c_adapter *adapter, int address, int kind)
	150	{
	151	struct i2c_client *new_client;
	152	struct w83l785ts_data *data;
	153	int err = 0;
	154
	155
	156	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
	157	goto exit;
	158
ba9c2e8d	159	if (!(data = kzalloc(sizeof(struct w83l785ts_data), GFP_KERNEL))) {
1da177e4 LT	160	err = -ENOMEM;
	161	goto exit;
	162	}
1da177e4 LT	163
	164	/* The common I2C client data is placed right before the
	165	* W83L785TS-specific data. */
	166	new_client = &data->client;
	167	i2c_set_clientdata(new_client, data);
	168	new_client->addr = address;
	169	new_client->adapter = adapter;
	170	new_client->driver = &w83l785ts_driver;
	171	new_client->flags = 0;
	172
	173	/*
	174	* Now we do the remaining detection. A negative kind means that
	175	* the driver was loaded with no force parameter (default), so we
	176	* must both detect and identify the chip (actually there is only
	177	* one possible kind of chip for now, W83L785TS-S). A zero kind means
	178	* that the driver was loaded with the force parameter, the detection
	179	* step shall be skipped. A positive kind means that the driver
	180	* was loaded with the force parameter and a given kind of chip is
	181	* requested, so both the detection and the identification steps
	182	* are skipped.
	183	*/
	184	if (kind < 0) { /* detection */
	185	if (((w83l785ts_read_value(new_client,
	186	W83L785TS_REG_CONFIG, 0) & 0x80) != 0x00)
	187	\|\| ((w83l785ts_read_value(new_client,
	188	W83L785TS_REG_TYPE, 0) & 0xFC) != 0x00)) {
	189	dev_dbg(&adapter->dev,
	190	"W83L785TS-S detection failed at 0x%02x.\n",
	191	address);
	192	goto exit_free;
	193	}
	194	}
	195
	196	if (kind <= 0) { /* identification */
	197	u16 man_id;
	198	u8 chip_id;
	199
	200	man_id = (w83l785ts_read_value(new_client,
	201	W83L785TS_REG_MAN_ID1, 0) << 8) +
	202	w83l785ts_read_value(new_client,
	203	W83L785TS_REG_MAN_ID2, 0);
	204	chip_id = w83l785ts_read_value(new_client,
	205	W83L785TS_REG_CHIP_ID, 0);
	206
	207	if (man_id == 0x5CA3) { /* Winbond */
	208	if (chip_id == 0x70) { /* W83L785TS-S */
	209	kind = w83l785ts;
	210	}
	211	}
	212
	213	if (kind <= 0) { /* identification failed */
	214	dev_info(&adapter->dev,
	215	"Unsupported chip (man_id=0x%04X, "
	216	"chip_id=0x%02X).\n", man_id, chip_id);
	217	goto exit_free;
	218	}
	219	}
	220
	221	/* We can fill in the remaining client fields. */
	222	strlcpy(new_client->name, "w83l785ts", I2C_NAME_SIZE);
	223	data->valid = 0;
9a61bf63	224	mutex_init(&data->update_lock);
1da177e4 LT	225
1da177e4 LT	226	/* Default values in case the first read fails (unlikely). */
709439a2	227	data->temp[1] = data->temp[0] = 0;
1da177e4 LT	228
	229	/* Tell the I2C layer a new client has arrived. */
	230	if ((err = i2c_attach_client(new_client)))
	231	goto exit_free;
	232
	233	/*
	234	* Initialize the W83L785TS chip
	235	* Nothing yet, assume it is already started.
	236	*/
	237
ccc5c306 RM	238	err = device_create_file(&new_client->dev,
	239	&sensor_dev_attr_temp1_input.dev_attr);
	240	if (err)
	241	goto exit_remove;
	242
	243	err = device_create_file(&new_client->dev,
	244	&sensor_dev_attr_temp1_max.dev_attr);
	245	if (err)
	246	goto exit_remove;
	247
1da177e4	248	/* Register sysfs hooks */
1beeffe4 TJ	249	data->hwmon_dev = hwmon_device_register(&new_client->dev);
	250	if (IS_ERR(data->hwmon_dev)) {
	251	err = PTR_ERR(data->hwmon_dev);
ccc5c306	252	goto exit_remove;
943b0830 MH	253	}
943b0830 MH	254
1da177e4 LT	255	return 0;
1da177e4 LT	256
ccc5c306 RM	257	exit_remove:
	258	device_remove_file(&new_client->dev,
	259	&sensor_dev_attr_temp1_input.dev_attr);
	260	device_remove_file(&new_client->dev,
	261	&sensor_dev_attr_temp1_max.dev_attr);
943b0830	262	i2c_detach_client(new_client);
1da177e4 LT	263	exit_free:
	264	kfree(data);
	265	exit:
	266	return err;
	267	}
	268
	269	static int w83l785ts_detach_client(struct i2c_client *client)
	270	{
943b0830	271	struct w83l785ts_data *data = i2c_get_clientdata(client);
1da177e4 LT	272	int err;
1da177e4 LT	273
1beeffe4	274	hwmon_device_unregister(data->hwmon_dev);
ccc5c306 RM	275	device_remove_file(&client->dev,
	276	&sensor_dev_attr_temp1_input.dev_attr);
	277	device_remove_file(&client->dev,
	278	&sensor_dev_attr_temp1_max.dev_attr);
7bef5594	279	if ((err = i2c_detach_client(client)))
1da177e4	280	return err;
1da177e4	281
943b0830	282	kfree(data);
1da177e4 LT	283	return 0;
	284	}
	285
	286	static u8 w83l785ts_read_value(struct i2c_client *client, u8 reg, u8 defval)
	287	{
	288	int value, i;
	289
	290	/* Frequent read errors have been reported on Asus boards, so we
	291	* retry on read errors. If it still fails (unlikely), return the
	292	* default value requested by the caller. */
	293	for (i = 1; i <= MAX_RETRIES; i++) {
	294	value = i2c_smbus_read_byte_data(client, reg);
	295	if (value >= 0) {
	296	dev_dbg(&client->dev, "Read 0x%02x from register "
	297	"0x%02x.\n", value, reg);
	298	return value;
	299	}
	300	dev_dbg(&client->dev, "Read failed, will retry in %d.\n", i);
	301	msleep(i);
	302	}
	303
	304	dev_err(&client->dev, "Couldn't read value from register 0x%02x. "
	305	"Please report.\n", reg);
	306	return defval;
	307	}
	308
	309	static struct w83l785ts_data w83l785ts_update_device(struct device dev)
	310	{
	311	struct i2c_client *client = to_i2c_client(dev);
	312	struct w83l785ts_data *data = i2c_get_clientdata(client);
	313
9a61bf63	314	mutex_lock(&data->update_lock);
1da177e4 LT	315
	316	if (!data->valid \|\| time_after(jiffies, data->last_updated + HZ * 2)) {
	317	dev_dbg(&client->dev, "Updating w83l785ts data.\n");
709439a2 JD	318	data->temp[0] = w83l785ts_read_value(client,
	319	W83L785TS_REG_TEMP, data->temp[0]);
	320	data->temp[1] = w83l785ts_read_value(client,
	321	W83L785TS_REG_TEMP_OVER, data->temp[1]);
1da177e4 LT	322
	323	data->last_updated = jiffies;
	324	data->valid = 1;
	325	}
	326
9a61bf63	327	mutex_unlock(&data->update_lock);
1da177e4 LT	328
	329	return data;
	330	}
	331
	332	static int __init sensors_w83l785ts_init(void)
	333	{
	334	return i2c_add_driver(&w83l785ts_driver);
	335	}
	336
	337	static void __exit sensors_w83l785ts_exit(void)
	338	{
	339	i2c_del_driver(&w83l785ts_driver);
	340	}
	341
	342	MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
	343	MODULE_DESCRIPTION("W83L785TS-S driver");
	344	MODULE_LICENSE("GPL");
	345
	346	module_init(sensors_w83l785ts_init);
	347	module_exit(sensors_w83l785ts_exit);