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Commit 84f1e442 authored by Riku Voipio's avatar Riku Voipio Committed by Mark M. Hoffman
Browse files

hwmon: Add f75375s driver 



Add support for Fintek F75375S/SP and F75373.

Signed-off-by: default avatarRiku Voipio <riku.voipio@movial.fi>
Signed-off-by: default avatarMark M. Hoffman <mhoffman@lightlink.com>
parent 176544dc

drivers/hwmon/Kconfig

+10 −0
Original line number Diff line number Diff line
@@ -236,6 +236,16 @@ config SENSORS_F71882FG 
	  This driver can also be built as a module.  If so, the module

	  will be called f71882fg.



config SENSORS_F75375S

	tristate "Fintek F75375S/SP and F75373";

	depends on I2C && EXPERIMENTAL

	help

	  If you say yes here you get support for hardware monitoring

	  features of the Fintek F75375S/SP and F75373



	  This driver can also be built as a module.  If so, the module

	  will be called f75375s.



config SENSORS_FSCHER

	tristate "FSC Hermes"

	depends on I2C

drivers/hwmon/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -31,6 +31,7 @@ obj-$(CONFIG_SENSORS_DME1737) += dme1737.o 
obj-$(CONFIG_SENSORS_DS1621)	+= ds1621.o

obj-$(CONFIG_SENSORS_F71805F)	+= f71805f.o

obj-$(CONFIG_SENSORS_F71882FG)	+= f71882fg.o

obj-$(CONFIG_SENSORS_F75375S)	+= f75375s.o

obj-$(CONFIG_SENSORS_FSCHER)	+= fscher.o

obj-$(CONFIG_SENSORS_FSCPOS)	+= fscpos.o

obj-$(CONFIG_SENSORS_GL518SM)	+= gl518sm.o

drivers/hwmon/f75375s.c

0 → 100644
+691 −0
Original line number Diff line number Diff line 
/*

 * f75375s.c - driver for the Fintek F75375/SP and F75373

 *             hardware monitoring features

 * Copyright (C) 2006-2007  Riku Voipio <riku.voipio@movial.fi>

 *

 * Datasheets available at:

 *

 * f75375:

 * http://www.fintek.com.tw/files/productfiles/2005111152950.pdf

 *

 * f75373:

 * http://www.fintek.com.tw/files/productfiles/2005111153128.pdf

 *

 * 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/jiffies.h>

#include <linux/hwmon.h>

#include <linux/hwmon-sysfs.h>

#include <linux/i2c.h>

#include <linux/err.h>

#include <linux/mutex.h>



/* Addresses to scan */

static unsigned short normal_i2c[] = { 0x2d, 0x2e, I2C_CLIENT_END };



/* Insmod parameters */

I2C_CLIENT_INSMOD_2(f75373, f75375);



/* Fintek F75375 registers  */

#define F75375_REG_CONFIG0		0x0

#define F75375_REG_CONFIG1		0x1

#define F75375_REG_CONFIG2		0x2

#define F75375_REG_CONFIG3		0x3

#define F75375_REG_ADDR			0x4

#define F75375_REG_INTR			0x31

#define F75375_CHIP_ID			0x5A

#define F75375_REG_VERSION		0x5C

#define F75375_REG_VENDOR		0x5D

#define F75375_REG_FAN_TIMER		0x60



#define F75375_REG_VOLT(nr)		(0x10 + (nr))

#define F75375_REG_VOLT_HIGH(nr)	(0x20 + (nr) * 2)

#define F75375_REG_VOLT_LOW(nr)		(0x21 + (nr) * 2)



#define F75375_REG_TEMP(nr)		(0x14 + (nr))

#define F75375_REG_TEMP_HIGH(nr)	(0x28 + (nr) * 2)

#define F75375_REG_TEMP_HYST(nr)	(0x29 + (nr) * 2)



#define F75375_REG_FAN(nr)		(0x16 + (nr) * 2)

#define F75375_REG_FAN_MIN(nr)		(0x2C + (nr) * 2)

#define F75375_REG_FAN_FULL(nr)		(0x70 + (nr) * 0x10)

#define F75375_REG_FAN_PWM_DUTY(nr)	(0x76 + (nr) * 0x10)

#define F75375_REG_FAN_PWM_CLOCK(nr)	(0x7D + (nr) * 0x10)



#define F75375_REG_FAN_EXP(nr)		(0x74 + (nr) * 0x10)

#define F75375_REG_FAN_B_TEMP(nr, step)	((0xA0 + (nr) * 0x10) + (step))

#define F75375_REG_FAN_B_SPEED(nr, step) \

	((0xA5 + (nr) * 0x10) + (step) * 2)



#define F75375_REG_PWM1_RAISE_DUTY	0x69

#define F75375_REG_PWM2_RAISE_DUTY	0x6A

#define F75375_REG_PWM1_DROP_DUTY	0x6B

#define F75375_REG_PWM2_DROP_DUTY	0x6C



#define FAN_CTRL_LINEAR(nr)		(4 + nr)

#define FAN_CTRL_MODE(nr)		(5 + ((nr) * 2))



/*

 * Data structures and manipulation thereof

 */



struct f75375_data {

	unsigned short addr;

	struct i2c_client client;

	struct class_device *class_dev;



	const char *name;

	int kind;

	struct mutex update_lock; /* protect register access */

	char valid;

	unsigned long last_updated;	/* In jiffies */

	unsigned long last_limits;	/* In jiffies */



	/* Register values */

	u8 in[4];

	u8 in_max[4];

	u8 in_min[4];

	u16 fan[2];

	u16 fan_min[2];

	u16 fan_full[2];

	u16 fan_exp[2];

	u8 fan_timer;

	u8 pwm[2];

	u8 pwm_mode[2];

	u8 pwm_enable[2];

	s8 temp[2];

	s8 temp_high[2];

	s8 temp_max_hyst[2];

};



static int f75375_attach_adapter(struct i2c_adapter *adapter);

static int f75375_detect(struct i2c_adapter *adapter, int address, int kind);

static int f75375_detach_client(struct i2c_client *client);



static struct i2c_driver f75375_driver = {

	.driver = {

		.name = "f75375",

	},

	.attach_adapter = f75375_attach_adapter,

	.detach_client = f75375_detach_client,

};



static inline int f75375_read8(struct i2c_client *client, u8 reg)

{

	return i2c_smbus_read_byte_data(client, reg);

}



/* in most cases, should be called while holding update_lock */

static inline u16 f75375_read16(struct i2c_client *client, u8 reg)

{

	return ((i2c_smbus_read_byte_data(client, reg) << 8)

		| i2c_smbus_read_byte_data(client, reg + 1));

}



static inline void f75375_write8(struct i2c_client *client, u8 reg,

		u8 value)

{

	i2c_smbus_write_byte_data(client, reg, value);

}



static inline void f75375_write16(struct i2c_client *client, u8 reg,

		u16 value)

{

	int err = i2c_smbus_write_byte_data(client, reg, (value << 8));

	if (err)

		return;

	i2c_smbus_write_byte_data(client, reg + 1, (value & 0xFF));

}



static struct f75375_data *f75375_update_device(struct device *dev)

{

	struct i2c_client *client = to_i2c_client(dev);

	struct f75375_data *data = i2c_get_clientdata(client);

	int nr;



	mutex_lock(&data->update_lock);



	/* Limit registers cache is refreshed after 60 seconds */

	if (time_after(jiffies, data->last_limits + 60 * HZ)

		|| !data->valid) {

		for (nr = 0; nr < 2; nr++) {

			data->temp_high[nr] =

				f75375_read8(client, F75375_REG_TEMP_HIGH(nr));

			data->temp_max_hyst[nr] =

				f75375_read8(client, F75375_REG_TEMP_HYST(nr));

			data->fan_full[nr] =

				f75375_read16(client, F75375_REG_FAN_FULL(nr));

			data->fan_min[nr] =

				f75375_read16(client, F75375_REG_FAN_MIN(nr));

			data->fan_exp[nr] =

				f75375_read16(client, F75375_REG_FAN_EXP(nr));

			data->pwm[nr] =	f75375_read8(client,

				F75375_REG_FAN_PWM_DUTY(nr));



		}

		for (nr = 0; nr < 4; nr++) {

			data->in_max[nr] =

				f75375_read8(client, F75375_REG_VOLT_HIGH(nr));

			data->in_min[nr] =

				f75375_read8(client, F75375_REG_VOLT_LOW(nr));

		}

		data->fan_timer = f75375_read8(client, F75375_REG_FAN_TIMER);

		data->last_limits = jiffies;

	}



	/* Measurement registers cache is refreshed after 2 second */

	if (time_after(jiffies, data->last_updated + 2 * HZ)

		|| !data->valid) {

		for (nr = 0; nr < 2; nr++) {

			data->temp[nr] =

				f75375_read8(client, F75375_REG_TEMP(nr));

			data->fan[nr] =

				f75375_read16(client, F75375_REG_FAN(nr));

		}

		for (nr = 0; nr < 4; nr++)

			data->in[nr] =

				f75375_read8(client, F75375_REG_VOLT(nr));



		data->last_updated = jiffies;

		data->valid = 1;

	}



	mutex_unlock(&data->update_lock);

	return data;

}



static inline u16 rpm_from_reg(u16 reg)

{

	if (reg == 0 || reg == 0xffff)

		return 0;

	return (1500000 / reg);

}



static inline u16 rpm_to_reg(int rpm)

{

	if (rpm < 367 || rpm > 0xffff)

		return 0xffff;

	return (1500000 / rpm);

}



static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,

		const char *buf, size_t count)

{

	int nr = to_sensor_dev_attr(attr)->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct f75375_data *data = i2c_get_clientdata(client);

	int val = simple_strtoul(buf, NULL, 10);



	mutex_lock(&data->update_lock);

	data->fan_min[nr] = rpm_to_reg(val);

	f75375_write16(client, F75375_REG_FAN_MIN(nr), data->fan_min[nr]);

	mutex_unlock(&data->update_lock);

	return count;

}



static ssize_t set_fan_exp(struct device *dev, struct device_attribute *attr,

		const char *buf, size_t count)

{

	int nr = to_sensor_dev_attr(attr)->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct f75375_data *data = i2c_get_clientdata(client);

	int val = simple_strtoul(buf, NULL, 10);



	mutex_lock(&data->update_lock);

	data->fan_exp[nr] = rpm_to_reg(val);

	f75375_write16(client, F75375_REG_FAN_EXP(nr), data->fan_exp[nr]);

	mutex_unlock(&data->update_lock);

	return count;

}



static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,

		const char *buf, size_t count)

{

	int nr = to_sensor_dev_attr(attr)->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct f75375_data *data = i2c_get_clientdata(client);

	int val = simple_strtoul(buf, NULL, 10);



	mutex_lock(&data->update_lock);

	data->pwm[nr] = SENSORS_LIMIT(val, 0, 255);

	f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr), data->pwm[nr]);

	mutex_unlock(&data->update_lock);

	return count;

}



static ssize_t show_pwm_enable(struct device *dev, struct device_attribute

		*attr, char *buf)

{

	int nr = to_sensor_dev_attr(attr)->index;

	struct f75375_data *data = f75375_update_device(dev);

	return sprintf(buf, "%d\n", data->pwm_enable[nr]);

}



static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr,

		const char *buf, size_t count)

{

	int nr = to_sensor_dev_attr(attr)->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct f75375_data *data = i2c_get_clientdata(client);

	int val = simple_strtoul(buf, NULL, 10);

	u8 fanmode;



	if (val < 0 || val > 4)

		return -EINVAL;



	mutex_lock(&data->update_lock);

	fanmode = f75375_read8(client, F75375_REG_FAN_TIMER);

	fanmode = ~(3 << FAN_CTRL_MODE(nr));



	switch (val) {

	case 0: /* Full speed */

		fanmode  |= (3 << FAN_CTRL_MODE(nr));

		data->pwm[nr] = 255;

		f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr),

				data->pwm[nr]);

		break;

	case 1: /* PWM */

		fanmode  |= (3 << FAN_CTRL_MODE(nr));

		break;

	case 2: /* AUTOMATIC*/

		fanmode  |= (2 << FAN_CTRL_MODE(nr));

		break;

	case 3: /* fan speed */

		break;

	}

	f75375_write8(client, F75375_REG_FAN_TIMER, fanmode);

	data->pwm_enable[nr] = val;

	mutex_unlock(&data->update_lock);

	return count;

}



static ssize_t set_pwm_mode(struct device *dev, struct device_attribute *attr,

		const char *buf, size_t count)

{

	int nr = to_sensor_dev_attr(attr)->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct f75375_data *data = i2c_get_clientdata(client);

	int val = simple_strtoul(buf, NULL, 10);

	u8 conf = 0;



	if (val != 0 || val != 1 || data->kind == f75373)

		return -EINVAL;



	mutex_lock(&data->update_lock);

	conf = f75375_read8(client, F75375_REG_CONFIG1);

	conf = ~(1 << FAN_CTRL_LINEAR(nr));



	if (val == 0)

		conf |= (1 << FAN_CTRL_LINEAR(nr)) ;



	f75375_write8(client, F75375_REG_CONFIG1, conf);

	data->pwm_mode[nr] = val;

	mutex_unlock(&data->update_lock);

	return count;

}



static ssize_t show_pwm(struct device *dev, struct device_attribute

		*attr, char *buf)

{

	int nr = to_sensor_dev_attr(attr)->index;

	struct f75375_data *data = f75375_update_device(dev);

	return sprintf(buf, "%d\n", data->pwm[nr]);

}



static ssize_t show_pwm_mode(struct device *dev, struct device_attribute

		*attr, char *buf)

{

	int nr = to_sensor_dev_attr(attr)->index;

	struct f75375_data *data = f75375_update_device(dev);

	return sprintf(buf, "%d\n", data->pwm_mode[nr]);

}



#define VOLT_FROM_REG(val) ((val) * 8)

#define VOLT_TO_REG(val) ((val) / 8)



static ssize_t show_in(struct device *dev, struct device_attribute *attr,

		char *buf)

{

	int nr = to_sensor_dev_attr(attr)->index;

	struct f75375_data *data = f75375_update_device(dev);

	return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in[nr]));

}



static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,

		char *buf)

{

	int nr = to_sensor_dev_attr(attr)->index;

	struct f75375_data *data = f75375_update_device(dev);

	return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in_max[nr]));

}



static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,

		char *buf)

{

	int nr = to_sensor_dev_attr(attr)->index;

	struct f75375_data *data = f75375_update_device(dev);

	return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in_min[nr]));

}



static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,

		const char *buf, size_t count)

{

	int nr = to_sensor_dev_attr(attr)->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct f75375_data *data = i2c_get_clientdata(client);

	int val = simple_strtoul(buf, NULL, 10);

	val = SENSORS_LIMIT(VOLT_TO_REG(val), 0, 0xff);

	mutex_lock(&data->update_lock);

	data->in_max[nr] = val;

	f75375_write8(client, F75375_REG_VOLT_HIGH(nr), data->in_max[nr]);

	mutex_unlock(&data->update_lock);

	return count;

}



static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,

		const char *buf, size_t count)

{

	int nr = to_sensor_dev_attr(attr)->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct f75375_data *data = i2c_get_clientdata(client);

	int val = simple_strtoul(buf, NULL, 10);

	val = SENSORS_LIMIT(VOLT_TO_REG(val), 0, 0xff);

	mutex_lock(&data->update_lock);

	data->in_min[nr] = val;

	f75375_write8(client, F75375_REG_VOLT_LOW(nr), data->in_min[nr]);

	mutex_unlock(&data->update_lock);

	return count;

}

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

#define TEMP_TO_REG(val) ((val) / 1000)



static ssize_t show_temp(struct device *dev, struct device_attribute *attr,

		char *buf)

{

	int nr = to_sensor_dev_attr(attr)->index;

	struct f75375_data *data = f75375_update_device(dev);

	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr]));

}



static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,

		char *buf)

{

	int nr = to_sensor_dev_attr(attr)->index;

	struct f75375_data *data = f75375_update_device(dev);

	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr]));

}



static ssize_t show_temp_max_hyst(struct device *dev,

		struct device_attribute *attr, char *buf)

{

	int nr = to_sensor_dev_attr(attr)->index;

	struct f75375_data *data = f75375_update_device(dev);

	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max_hyst[nr]));

}



static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,

		const char *buf, size_t count)

{

	int nr = to_sensor_dev_attr(attr)->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct f75375_data *data = i2c_get_clientdata(client);

	int val = simple_strtol(buf, NULL, 10);

	val = SENSORS_LIMIT(TEMP_TO_REG(val), 0, 127);

	mutex_lock(&data->update_lock);

	data->temp_high[nr] = val;

	f75375_write8(client, F75375_REG_TEMP_HIGH(nr), data->temp_high[nr]);

	mutex_unlock(&data->update_lock);

	return count;

}



static ssize_t set_temp_max_hyst(struct device *dev,

	struct device_attribute *attr, const char *buf, size_t count)

{

	int nr = to_sensor_dev_attr(attr)->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct f75375_data *data = i2c_get_clientdata(client);

	int val = simple_strtol(buf, NULL, 10);

	val = SENSORS_LIMIT(TEMP_TO_REG(val), 0, 127);

	mutex_lock(&data->update_lock);

	data->temp_max_hyst[nr] = val;

	f75375_write8(client, F75375_REG_TEMP_HYST(nr),

		data->temp_max_hyst[nr]);

	mutex_unlock(&data->update_lock);

	return count;

}



#define show_fan(thing) \

static ssize_t show_##thing(struct device *dev, struct device_attribute *attr, \

			char *buf)\

{\

	int nr = to_sensor_dev_attr(attr)->index;\

	struct f75375_data *data = f75375_update_device(dev); \

	return sprintf(buf, "%d\n", rpm_from_reg(data->thing[nr])); \

}



show_fan(fan);

show_fan(fan_min);

show_fan(fan_full);

show_fan(fan_exp);



static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);

static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO|S_IWUSR,

	show_in_max, set_in_max, 0);

static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO|S_IWUSR,

	show_in_min, set_in_min, 0);

static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);

static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO|S_IWUSR,

	show_in_max, set_in_max, 1);

static SENSOR_DEVICE_ATTR(in1_min, S_IRUGO|S_IWUSR,

	show_in_min, set_in_min, 1);

static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);

static SENSOR_DEVICE_ATTR(in2_max, S_IRUGO|S_IWUSR,

	show_in_max, set_in_max, 2);

static SENSOR_DEVICE_ATTR(in2_min, S_IRUGO|S_IWUSR,

	show_in_min, set_in_min, 2);

static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);

static SENSOR_DEVICE_ATTR(in3_max, S_IRUGO|S_IWUSR,

	show_in_max, set_in_max, 3);

static SENSOR_DEVICE_ATTR(in3_min, S_IRUGO|S_IWUSR,

	show_in_min, set_in_min, 3);

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

static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO|S_IWUSR,

	show_temp_max_hyst, set_temp_max_hyst, 0);

static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO|S_IWUSR,

	show_temp_max, set_temp_max, 0);

static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);

static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO|S_IWUSR,

	show_temp_max_hyst, set_temp_max_hyst, 1);

static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO|S_IWUSR,

	show_temp_max, set_temp_max, 1);

static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);

static SENSOR_DEVICE_ATTR(fan1_full, S_IRUGO, show_fan_full, NULL, 0);

static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO|S_IWUSR,

	show_fan_min, set_fan_min, 0);

static SENSOR_DEVICE_ATTR(fan1_exp, S_IRUGO|S_IWUSR,

	show_fan_exp, set_fan_exp, 0);

static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);

static SENSOR_DEVICE_ATTR(fan2_full, S_IRUGO, show_fan_full, NULL, 1);

static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO|S_IWUSR,

	show_fan_min, set_fan_min, 1);

static SENSOR_DEVICE_ATTR(fan2_exp, S_IRUGO|S_IWUSR,

	show_fan_exp, set_fan_exp, 1);

static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO|S_IWUSR,

	show_pwm, set_pwm, 0);

static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO|S_IWUSR,

	show_pwm_enable, set_pwm_enable, 0);

static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO|S_IWUSR,

	show_pwm_mode, set_pwm_mode, 0);

static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR,

	show_pwm, set_pwm, 1);

static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO|S_IWUSR,

	show_pwm_enable, set_pwm_enable, 1);

static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO|S_IWUSR,

	show_pwm_mode, set_pwm_mode, 1);



static struct attribute *f75375_attributes[] = {

	&sensor_dev_attr_temp1_input.dev_attr.attr,

	&sensor_dev_attr_temp1_max.dev_attr.attr,

	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,

	&sensor_dev_attr_temp2_input.dev_attr.attr,

	&sensor_dev_attr_temp2_max.dev_attr.attr,

	&sensor_dev_attr_temp2_max_hyst.dev_attr.attr,

	&sensor_dev_attr_fan1_input.dev_attr.attr,

	&sensor_dev_attr_fan1_full.dev_attr.attr,

	&sensor_dev_attr_fan1_min.dev_attr.attr,

	&sensor_dev_attr_fan1_exp.dev_attr.attr,

	&sensor_dev_attr_fan2_input.dev_attr.attr,

	&sensor_dev_attr_fan2_full.dev_attr.attr,

	&sensor_dev_attr_fan2_min.dev_attr.attr,

	&sensor_dev_attr_fan2_exp.dev_attr.attr,

	&sensor_dev_attr_pwm1.dev_attr.attr,

	&sensor_dev_attr_pwm1_enable.dev_attr.attr,

	&sensor_dev_attr_pwm1_mode.dev_attr.attr,

	&sensor_dev_attr_pwm2.dev_attr.attr,

	&sensor_dev_attr_pwm2_enable.dev_attr.attr,

	&sensor_dev_attr_pwm2_mode.dev_attr.attr,

	&sensor_dev_attr_in0_input.dev_attr.attr,

	&sensor_dev_attr_in0_max.dev_attr.attr,

	&sensor_dev_attr_in0_min.dev_attr.attr,

	&sensor_dev_attr_in1_input.dev_attr.attr,

	&sensor_dev_attr_in1_max.dev_attr.attr,

	&sensor_dev_attr_in1_min.dev_attr.attr,

	&sensor_dev_attr_in2_input.dev_attr.attr,

	&sensor_dev_attr_in2_max.dev_attr.attr,

	&sensor_dev_attr_in2_min.dev_attr.attr,

	&sensor_dev_attr_in3_input.dev_attr.attr,

	&sensor_dev_attr_in3_max.dev_attr.attr,

	&sensor_dev_attr_in3_min.dev_attr.attr,

	NULL

};



static const struct attribute_group f75375_group = {

	.attrs = f75375_attributes,

};



static int f75375_detach_client(struct i2c_client *client)

{

	struct f75375_data *data = i2c_get_clientdata(client);

	int err;



	hwmon_device_unregister(data->class_dev);

	sysfs_remove_group(&client->dev.kobj, &f75375_group);



	err = i2c_detach_client(client);

	if (err) {

		dev_err(&client->dev,

			"Client deregistration failed, "

			"client not detached.\n");

		return err;

	}

	kfree(data);

	return 0;

}



static int f75375_attach_adapter(struct i2c_adapter *adapter)

{

	if (!(adapter->class & I2C_CLASS_HWMON))

		return 0;

	return i2c_probe(adapter, &addr_data, f75375_detect);

}



/* This function is called by i2c_probe */

static int f75375_detect(struct i2c_adapter *adapter, int address, int kind)

{

	struct i2c_client *client;

	struct f75375_data *data;

	u8 version = 0;

	int err = 0;

	const char *name = "";



	if (!(data = kzalloc(sizeof(struct f75375_data), GFP_KERNEL))) {

		err = -ENOMEM;

		goto exit;

	}

	client = &data->client;

	i2c_set_clientdata(client, data);

	client->addr = address;

	client->adapter = adapter;

	client->driver = &f75375_driver;



	if (kind < 0) {

		u16 vendid = f75375_read16(client, F75375_REG_VENDOR);

		u16 chipid = f75375_read16(client, F75375_CHIP_ID);

		version = f75375_read8(client, F75375_REG_VERSION);

		if (chipid == 0x0306 && vendid == 0x1934) {

			kind = f75375;

		} else if (chipid == 0x0204 && vendid == 0x1934) {

			kind = f75373;

		} else {

			dev_err(&adapter->dev,

				"failed,%02X,%02X,%02X\n",

				chipid, version, vendid);

			goto exit_free;

		}

	}



	if (kind == f75375) {

		name = "f75375";

	} else if (kind == f75373) {

		name = "f75373";

	}



	dev_info(&adapter->dev, "found %s version: %02X\n", name, version);

	strlcpy(client->name, name, I2C_NAME_SIZE);

	data->kind = kind;

	mutex_init(&data->update_lock);

	if ((err = i2c_attach_client(client)))

		goto exit_free;



	if ((err = sysfs_create_group(&client->dev.kobj, &f75375_group)))

		goto exit_detach;



	data->class_dev = hwmon_device_register(&client->dev);

	if (IS_ERR(data->class_dev)) {

		err = PTR_ERR(data->class_dev);

		goto exit_remove;

	}



	return 0;



exit_remove:

	sysfs_remove_group(&client->dev.kobj, &f75375_group);

exit_detach:

	i2c_detach_client(client);

exit_free:

	kfree(data);

exit:

	return err;

}



static int __init sensors_f75375_init(void)

{

	return i2c_add_driver(&f75375_driver);

}



static void __exit sensors_f75375_exit(void)

{

	i2c_del_driver(&f75375_driver);

}



MODULE_AUTHOR("Riku Voipio <riku.voipio@movial.fi>");

MODULE_LICENSE("GPL");

MODULE_DESCRIPTION("F75373/F75375 hardware monitoring driver");



module_init(sensors_f75375_init);

module_exit(sensors_f75375_exit);