w83627ehf.c

	int nr = sensor_attr->index;
	return sprintf(buf, "%d\n", data->rpm[nr]);
}

static ssize_t
show_fan_min(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct w83627ehf_data *data = w83627ehf_update_device(dev);
	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
	int nr = sensor_attr->index;
	return sprintf(buf, "%d\n",
		       data->fan_from_reg_min(data->fan_min[nr],
					      data->fan_div[nr]));
}

static ssize_t
show_fan_div(struct device *dev, struct device_attribute *attr,
	     char *buf)
{
	struct w83627ehf_data *data = w83627ehf_update_device(dev);
	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
	int nr = sensor_attr->index;
	return sprintf(buf, "%u\n", div_from_reg(data->fan_div[nr]));
}

static ssize_t
store_fan_min(struct device *dev, struct device_attribute *attr,
	      const char *buf, size_t count)
{
	struct w83627ehf_data *data = dev_get_drvdata(dev);
	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
	int nr = sensor_attr->index;
	unsigned long val;
	int err;
	unsigned int reg;
	u8 new_div;

	err = strict_strtoul(buf, 10, &val);
	if (err < 0)
		return err;

	mutex_lock(&data->update_lock);
	if (!data->has_fan_div) {
		/*
		 * Only NCT6776F for now, so we know that this is a 13 bit
		 * register
		 */
		if (!val) {
			val = 0xff1f;
		} else {
			if (val > 1350000U)
				val = 135000U;
			val = 1350000U / val;
			val = (val & 0x1f) | ((val << 3) & 0xff00);
		}
		data->fan_min[nr] = val;
		goto done;	/* Leave fan divider alone */
	}
	if (!val) {
		/* No min limit, alarm disabled */
		data->fan_min[nr] = 255;
		new_div = data->fan_div[nr]; /* No change */
		dev_info(dev, "fan%u low limit and alarm disabled\n", nr + 1);
	} else if ((reg = 1350000U / val) >= 128 * 255) {
		/* Speed below this value cannot possibly be represented,
		   even with the highest divider (128) */
		data->fan_min[nr] = 254;
		new_div = 7; /* 128 == (1 << 7) */
		dev_warn(dev, "fan%u low limit %lu below minimum %u, set to "
			 "minimum\n", nr + 1, val,
			 data->fan_from_reg_min(254, 7));
	} else if (!reg) {
		/* Speed above this value cannot possibly be represented,
		   even with the lowest divider (1) */
		data->fan_min[nr] = 1;
		new_div = 0; /* 1 == (1 << 0) */
		dev_warn(dev, "fan%u low limit %lu above maximum %u, set to "
			 "maximum\n", nr + 1, val,
			 data->fan_from_reg_min(1, 0));
	} else {
		/* Automatically pick the best divider, i.e. the one such
		   that the min limit will correspond to a register value
		   in the 96..192 range */
		new_div = 0;
		while (reg > 192 && new_div < 7) {
			reg >>= 1;
			new_div++;
		}
		data->fan_min[nr] = reg;
	}

	/* Write both the fan clock divider (if it changed) and the new
	   fan min (unconditionally) */
	if (new_div != data->fan_div[nr]) {
		dev_dbg(dev, "fan%u clock divider changed from %u to %u\n",
			nr + 1, div_from_reg(data->fan_div[nr]),
			div_from_reg(new_div));
		data->fan_div[nr] = new_div;
		w83627ehf_write_fan_div_common(dev, data, nr);
		/* Give the chip time to sample a new speed value */
		data->last_updated = jiffies;
	}
done:
	w83627ehf_write_value(data, data->REG_FAN_MIN[nr],
			      data->fan_min[nr]);
	mutex_unlock(&data->update_lock);

	return count;
}

static struct sensor_device_attribute sda_fan_input[] = {
	SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
	SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
	SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2),
	SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3),
	SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4),
};

static struct sensor_device_attribute sda_fan_alarm[] = {
	SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6),
	SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7),
	SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11),
	SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 10),
	SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 23),
};

static struct sensor_device_attribute sda_fan_min[] = {
	SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min,
		    store_fan_min, 0),
	SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min,
		    store_fan_min, 1),
	SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min,
		    store_fan_min, 2),
	SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min,
		    store_fan_min, 3),
	SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO, show_fan_min,
		    store_fan_min, 4),
};

static struct sensor_device_attribute sda_fan_div[] = {
	SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
	SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
	SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
	SENSOR_ATTR(fan4_div, S_IRUGO, show_fan_div, NULL, 3),
	SENSOR_ATTR(fan5_div, S_IRUGO, show_fan_div, NULL, 4),
};

static ssize_t
show_temp_label(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct w83627ehf_data *data = w83627ehf_update_device(dev);
	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
	int nr = sensor_attr->index;
	return sprintf(buf, "%s\n", data->temp_label[data->temp_src[nr]]);
}

#define show_temp_reg(addr, reg) \
static ssize_t \
show_##reg(struct device *dev, struct device_attribute *attr, \
	   char *buf) \
{ \
	struct w83627ehf_data *data = w83627ehf_update_device(dev); \
	struct sensor_device_attribute *sensor_attr = \
		to_sensor_dev_attr(attr); \
	int nr = sensor_attr->index; \
	return sprintf(buf, "%d\n", \
		       temp_from_reg(data->addr[nr], data->reg[nr])); \
}
show_temp_reg(reg_temp, temp);
show_temp_reg(reg_temp_over, temp_max);
show_temp_reg(reg_temp_hyst, temp_max_hyst);

#define store_temp_reg(addr, reg) \
static ssize_t \
store_##reg(struct device *dev, struct device_attribute *attr, \
	    const char *buf, size_t count) \
{ \
	struct w83627ehf_data *data = dev_get_drvdata(dev); \
	struct sensor_device_attribute *sensor_attr = \
		to_sensor_dev_attr(attr); \
	int nr = sensor_attr->index; \
	int err; \
	long val; \
	err = strict_strtol(buf, 10, &val); \
	if (err < 0) \
		return err; \
	mutex_lock(&data->update_lock); \
	data->reg[nr] = temp_to_reg(data->addr[nr], val); \
	w83627ehf_write_value(data, data->addr[nr], \
			      data->reg[nr]); \
	mutex_unlock(&data->update_lock); \
	return count; \
}
store_temp_reg(reg_temp_over, temp_max);
store_temp_reg(reg_temp_hyst, temp_max_hyst);

static ssize_t
show_temp_type(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct w83627ehf_data *data = w83627ehf_update_device(dev);
	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
	int nr = sensor_attr->index;
	return sprintf(buf, "%d\n", (int)data->temp_type[nr]);
}

static struct sensor_device_attribute sda_temp_input[] = {
	SENSOR_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0),
	SENSOR_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1),
	SENSOR_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2),
	SENSOR_ATTR(temp4_input, S_IRUGO, show_temp, NULL, 3),
	SENSOR_ATTR(temp5_input, S_IRUGO, show_temp, NULL, 4),
	SENSOR_ATTR(temp6_input, S_IRUGO, show_temp, NULL, 5),
	SENSOR_ATTR(temp7_input, S_IRUGO, show_temp, NULL, 6),
	SENSOR_ATTR(temp8_input, S_IRUGO, show_temp, NULL, 7),
	SENSOR_ATTR(temp9_input, S_IRUGO, show_temp, NULL, 8),
};

static struct sensor_device_attribute sda_temp_label[] = {
	SENSOR_ATTR(temp1_label, S_IRUGO, show_temp_label, NULL, 0),
	SENSOR_ATTR(temp2_label, S_IRUGO, show_temp_label, NULL, 1),
	SENSOR_ATTR(temp3_label, S_IRUGO, show_temp_label, NULL, 2),
	SENSOR_ATTR(temp4_label, S_IRUGO, show_temp_label, NULL, 3),
	SENSOR_ATTR(temp5_label, S_IRUGO, show_temp_label, NULL, 4),
	SENSOR_ATTR(temp6_label, S_IRUGO, show_temp_label, NULL, 5),
	SENSOR_ATTR(temp7_label, S_IRUGO, show_temp_label, NULL, 6),
	SENSOR_ATTR(temp8_label, S_IRUGO, show_temp_label, NULL, 7),
	SENSOR_ATTR(temp9_label, S_IRUGO, show_temp_label, NULL, 8),
};

static struct sensor_device_attribute sda_temp_max[] = {
	SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR, show_temp_max,
		    store_temp_max, 0),
	SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR, show_temp_max,
		    store_temp_max, 1),
	SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR, show_temp_max,
		    store_temp_max, 2),
	SENSOR_ATTR(temp4_max, S_IRUGO | S_IWUSR, show_temp_max,
		    store_temp_max, 3),
	SENSOR_ATTR(temp5_max, S_IRUGO | S_IWUSR, show_temp_max,
		    store_temp_max, 4),
	SENSOR_ATTR(temp6_max, S_IRUGO | S_IWUSR, show_temp_max,
		    store_temp_max, 5),
	SENSOR_ATTR(temp7_max, S_IRUGO | S_IWUSR, show_temp_max,
		    store_temp_max, 6),
	SENSOR_ATTR(temp8_max, S_IRUGO | S_IWUSR, show_temp_max,
		    store_temp_max, 7),
	SENSOR_ATTR(temp9_max, S_IRUGO | S_IWUSR, show_temp_max,
		    store_temp_max, 8),
};

static struct sensor_device_attribute sda_temp_max_hyst[] = {
	SENSOR_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst,
		    store_temp_max_hyst, 0),
	SENSOR_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst,
		    store_temp_max_hyst, 1),
	SENSOR_ATTR(temp3_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst,
		    store_temp_max_hyst, 2),
	SENSOR_ATTR(temp4_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst,
		    store_temp_max_hyst, 3),
	SENSOR_ATTR(temp5_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst,
		    store_temp_max_hyst, 4),
	SENSOR_ATTR(temp6_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst,
		    store_temp_max_hyst, 5),
	SENSOR_ATTR(temp7_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst,
		    store_temp_max_hyst, 6),
	SENSOR_ATTR(temp8_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst,
		    store_temp_max_hyst, 7),
	SENSOR_ATTR(temp9_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst,
		    store_temp_max_hyst, 8),
};

static struct sensor_device_attribute sda_temp_alarm[] = {
	SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4),
	SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5),
	SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13),
};

static struct sensor_device_attribute sda_temp_type[] = {
	SENSOR_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0),
	SENSOR_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1),
	SENSOR_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2),
};

#define show_pwm_reg(reg) \
static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
			  char *buf) \
{ \
	struct w83627ehf_data *data = w83627ehf_update_device(dev); \
	struct sensor_device_attribute *sensor_attr = \
		to_sensor_dev_attr(attr); \
	int nr = sensor_attr->index; \
	return sprintf(buf, "%d\n", data->reg[nr]); \
}

show_pwm_reg(pwm_mode)
show_pwm_reg(pwm_enable)
show_pwm_reg(pwm)

static ssize_t
store_pwm_mode(struct device *dev, struct device_attribute *attr,
			const char *buf, size_t count)
{
	struct w83627ehf_data *data = dev_get_drvdata(dev);
	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
	int nr = sensor_attr->index;
	unsigned long val;
	int err;
	u16 reg;

	err = strict_strtoul(buf, 10, &val);
	if (err < 0)
		return err;

	if (val > 1)
		return -EINVAL;
	mutex_lock(&data->update_lock);
	reg = w83627ehf_read_value(data, W83627EHF_REG_PWM_ENABLE[nr]);
	data->pwm_mode[nr] = val;
	reg &= ~(1 << W83627EHF_PWM_MODE_SHIFT[nr]);
	if (!val)
		reg |= 1 << W83627EHF_PWM_MODE_SHIFT[nr];
	w83627ehf_write_value(data, W83627EHF_REG_PWM_ENABLE[nr], reg);
	mutex_unlock(&data->update_lock);
	return count;
}

static ssize_t
store_pwm(struct device *dev, struct device_attribute *attr,
			const char *buf, size_t count)
{
	struct w83627ehf_data *data = dev_get_drvdata(dev);
	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
	int nr = sensor_attr->index;
	unsigned long val;
	int err;

	err = strict_strtoul(buf, 10, &val);
	if (err < 0)
		return err;

	val = SENSORS_LIMIT(val, 0, 255);

	mutex_lock(&data->update_lock);
	data->pwm[nr] = val;
	w83627ehf_write_value(data, data->REG_PWM[nr], val);
	mutex_unlock(&data->update_lock);
	return count;
}

static ssize_t
store_pwm_enable(struct device *dev, struct device_attribute *attr,
			const char *buf, size_t count)
{
	struct w83627ehf_data *data = dev_get_drvdata(dev);
	struct w83627ehf_sio_data *sio_data = dev->platform_data;
	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
	int nr = sensor_attr->index;
	unsigned long val;
	int err;
	u16 reg;

	err = strict_strtoul(buf, 10, &val);
	if (err < 0)
		return err;

	if (!val || (val > 4 && val != data->pwm_enable_orig[nr]))
		return -EINVAL;
	/* SmartFan III mode is not supported on NCT6776F */
	if (sio_data->kind == nct6776 && val == 4)
		return -EINVAL;

	mutex_lock(&data->update_lock);
	data->pwm_enable[nr] = val;
	if (sio_data->kind == nct6775 || sio_data->kind == nct6776) {
		reg = w83627ehf_read_value(data,
					   NCT6775_REG_FAN_MODE[nr]);
		reg &= 0x0f;
		reg |= (val - 1) << 4;
		w83627ehf_write_value(data,
				      NCT6775_REG_FAN_MODE[nr], reg);
	} else {
		reg = w83627ehf_read_value(data, W83627EHF_REG_PWM_ENABLE[nr]);
		reg &= ~(0x03 << W83627EHF_PWM_ENABLE_SHIFT[nr]);
		reg |= (val - 1) << W83627EHF_PWM_ENABLE_SHIFT[nr];
		w83627ehf_write_value(data, W83627EHF_REG_PWM_ENABLE[nr], reg);
	}
	mutex_unlock(&data->update_lock);
	return count;
}


#define show_tol_temp(reg) \
static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
				char *buf) \
{ \
	struct w83627ehf_data *data = w83627ehf_update_device(dev); \
	struct sensor_device_attribute *sensor_attr = \
		to_sensor_dev_attr(attr); \
	int nr = sensor_attr->index; \
	return sprintf(buf, "%d\n", data->reg[nr] * 1000); \
}

show_tol_temp(tolerance)
show_tol_temp(target_temp)

static ssize_t
store_target_temp(struct device *dev, struct device_attribute *attr,
			const char *buf, size_t count)
{
	struct w83627ehf_data *data = dev_get_drvdata(dev);
	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
	int nr = sensor_attr->index;
	long val;
	int err;

	err = strict_strtol(buf, 10, &val);
	if (err < 0)
		return err;

	val = SENSORS_LIMIT(DIV_ROUND_CLOSEST(val, 1000), 0, 127);

	mutex_lock(&data->update_lock);
	data->target_temp[nr] = val;
	w83627ehf_write_value(data, data->REG_TARGET[nr], val);
	mutex_unlock(&data->update_lock);
	return count;
}

static ssize_t
store_tolerance(struct device *dev, struct device_attribute *attr,
			const char *buf, size_t count)
{
	struct w83627ehf_data *data = dev_get_drvdata(dev);
	struct w83627ehf_sio_data *sio_data = dev->platform_data;
	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
	int nr = sensor_attr->index;
	u16 reg;
	long val;
	int err;

	err = strict_strtol(buf, 10, &val);
	if (err < 0)
		return err;

	/* Limit the temp to 0C - 15C */
	val = SENSORS_LIMIT(DIV_ROUND_CLOSEST(val, 1000), 0, 15);

	mutex_lock(&data->update_lock);
	if (sio_data->kind == nct6775 || sio_data->kind == nct6776) {
		/* Limit tolerance further for NCT6776F */
		if (sio_data->kind == nct6776 && val > 7)
			val = 7;
		reg = w83627ehf_read_value(data, NCT6775_REG_FAN_MODE[nr]);
		reg = (reg & 0xf0) | val;
		w83627ehf_write_value(data, NCT6775_REG_FAN_MODE[nr], reg);
	} else {
		reg = w83627ehf_read_value(data, W83627EHF_REG_TOLERANCE[nr]);
		if (nr == 1)
			reg = (reg & 0x0f) | (val << 4);
		else
			reg = (reg & 0xf0) | val;
		w83627ehf_write_value(data, W83627EHF_REG_TOLERANCE[nr], reg);
	}
	data->tolerance[nr] = val;
	mutex_unlock(&data->update_lock);
	return count;
}

static struct sensor_device_attribute sda_pwm[] = {
	SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0),
	SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1),
	SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2),
	SENSOR_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3),
};

static struct sensor_device_attribute sda_pwm_mode[] = {
	SENSOR_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
		    store_pwm_mode, 0),
	SENSOR_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
		    store_pwm_mode, 1),
	SENSOR_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
		    store_pwm_mode, 2),
	SENSOR_ATTR(pwm4_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
		    store_pwm_mode, 3),
};

static struct sensor_device_attribute sda_pwm_enable[] = {
	SENSOR_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
		    store_pwm_enable, 0),
	SENSOR_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
		    store_pwm_enable, 1),
	SENSOR_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
		    store_pwm_enable, 2),
	SENSOR_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
		    store_pwm_enable, 3),
};

static struct sensor_device_attribute sda_target_temp[] = {
	SENSOR_ATTR(pwm1_target, S_IWUSR | S_IRUGO, show_target_temp,
		    store_target_temp, 0),
	SENSOR_ATTR(pwm2_target, S_IWUSR | S_IRUGO, show_target_temp,
		    store_target_temp, 1),
	SENSOR_ATTR(pwm3_target, S_IWUSR | S_IRUGO, show_target_temp,
		    store_target_temp, 2),
	SENSOR_ATTR(pwm4_target, S_IWUSR | S_IRUGO, show_target_temp,
		    store_target_temp, 3),
};

static struct sensor_device_attribute sda_tolerance[] = {
	SENSOR_ATTR(pwm1_tolerance, S_IWUSR | S_IRUGO, show_tolerance,
		    store_tolerance, 0),
	SENSOR_ATTR(pwm2_tolerance, S_IWUSR | S_IRUGO, show_tolerance,
		    store_tolerance, 1),
	SENSOR_ATTR(pwm3_tolerance, S_IWUSR | S_IRUGO, show_tolerance,
		    store_tolerance, 2),
	SENSOR_ATTR(pwm4_tolerance, S_IWUSR | S_IRUGO, show_tolerance,
		    store_tolerance, 3),
};

/* Smart Fan registers */

#define fan_functions(reg, REG) \
static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
		       char *buf) \
{ \
	struct w83627ehf_data *data = w83627ehf_update_device(dev); \
	struct sensor_device_attribute *sensor_attr = \
		to_sensor_dev_attr(attr); \
	int nr = sensor_attr->index; \
	return sprintf(buf, "%d\n", data->reg[nr]); \
} \
static ssize_t \
store_##reg(struct device *dev, struct device_attribute *attr, \
			    const char *buf, size_t count) \
{ \
	struct w83627ehf_data *data = dev_get_drvdata(dev); \
	struct sensor_device_attribute *sensor_attr = \
		to_sensor_dev_attr(attr); \
	int nr = sensor_attr->index; \
	unsigned long val; \
	int err; \
	err = strict_strtoul(buf, 10, &val); \
	if (err < 0) \
		return err; \
	val = SENSORS_LIMIT(val, 1, 255); \
	mutex_lock(&data->update_lock); \
	data->reg[nr] = val; \
	w83627ehf_write_value(data, data->REG_##REG[nr], val); \
	mutex_unlock(&data->update_lock); \
	return count; \
}

fan_functions(fan_start_output, FAN_START_OUTPUT)
fan_functions(fan_stop_output, FAN_STOP_OUTPUT)
fan_functions(fan_max_output, FAN_MAX_OUTPUT)
fan_functions(fan_step_output, FAN_STEP_OUTPUT)

#define fan_time_functions(reg, REG) \
static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
				char *buf) \
{ \
	struct w83627ehf_data *data = w83627ehf_update_device(dev); \
	struct sensor_device_attribute *sensor_attr = \
		to_sensor_dev_attr(attr); \
	int nr = sensor_attr->index; \
	return sprintf(buf, "%d\n", \
			step_time_from_reg(data->reg[nr], \
					   data->pwm_mode[nr])); \
} \
\
static ssize_t \
store_##reg(struct device *dev, struct device_attribute *attr, \
			const char *buf, size_t count) \
{ \
	struct w83627ehf_data *data = dev_get_drvdata(dev); \
	struct sensor_device_attribute *sensor_attr = \
		to_sensor_dev_attr(attr); \
	int nr = sensor_attr->index; \
	unsigned long val; \
	int err; \
	err = strict_strtoul(buf, 10, &val); \
	if (err < 0) \
		return err; \
	val = step_time_to_reg(val, data->pwm_mode[nr]); \
	mutex_lock(&data->update_lock); \
	data->reg[nr] = val; \
	w83627ehf_write_value(data, W83627EHF_REG_##REG[nr], val); \
	mutex_unlock(&data->update_lock); \
	return count; \
} \

fan_time_functions(fan_stop_time, FAN_STOP_TIME)

static ssize_t show_name(struct device *dev, struct device_attribute *attr,
			 char *buf)
{
	struct w83627ehf_data *data = dev_get_drvdata(dev);

	return sprintf(buf, "%s\n", data->name);
}
static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);

static struct sensor_device_attribute sda_sf3_arrays_fan4[] = {
	SENSOR_ATTR(pwm4_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time,
		    store_fan_stop_time, 3),
	SENSOR_ATTR(pwm4_start_output, S_IWUSR | S_IRUGO, show_fan_start_output,
		    store_fan_start_output, 3),
	SENSOR_ATTR(pwm4_stop_output, S_IWUSR | S_IRUGO, show_fan_stop_output,
		    store_fan_stop_output, 3),
	SENSOR_ATTR(pwm4_max_output, S_IWUSR | S_IRUGO, show_fan_max_output,
		    store_fan_max_output, 3),
	SENSOR_ATTR(pwm4_step_output, S_IWUSR | S_IRUGO, show_fan_step_output,
		    store_fan_step_output, 3),
};

static struct sensor_device_attribute sda_sf3_arrays[] = {
	SENSOR_ATTR(pwm1_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time,
		    store_fan_stop_time, 0),
	SENSOR_ATTR(pwm2_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time,
		    store_fan_stop_time, 1),
	SENSOR_ATTR(pwm3_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time,
		    store_fan_stop_time, 2),
	SENSOR_ATTR(pwm1_start_output, S_IWUSR | S_IRUGO, show_fan_start_output,
		    store_fan_start_output, 0),
	SENSOR_ATTR(pwm2_start_output, S_IWUSR | S_IRUGO, show_fan_start_output,
		    store_fan_start_output, 1),
	SENSOR_ATTR(pwm3_start_output, S_IWUSR | S_IRUGO, show_fan_start_output,
		    store_fan_start_output, 2),
	SENSOR_ATTR(pwm1_stop_output, S_IWUSR | S_IRUGO, show_fan_stop_output,
		    store_fan_stop_output, 0),
	SENSOR_ATTR(pwm2_stop_output, S_IWUSR | S_IRUGO, show_fan_stop_output,
		    store_fan_stop_output, 1),
	SENSOR_ATTR(pwm3_stop_output, S_IWUSR | S_IRUGO, show_fan_stop_output,
		    store_fan_stop_output, 2),
};


/*
 * pwm1 and pwm3 don't support max and step settings on all chips.
 * Need to check support while generating/removing attribute files.
 */
static struct sensor_device_attribute sda_sf3_max_step_arrays[] = {
	SENSOR_ATTR(pwm1_max_output, S_IWUSR | S_IRUGO, show_fan_max_output,
		    store_fan_max_output, 0),
	SENSOR_ATTR(pwm1_step_output, S_IWUSR | S_IRUGO, show_fan_step_output,
		    store_fan_step_output, 0),
	SENSOR_ATTR(pwm2_max_output, S_IWUSR | S_IRUGO, show_fan_max_output,
		    store_fan_max_output, 1),
	SENSOR_ATTR(pwm2_step_output, S_IWUSR | S_IRUGO, show_fan_step_output,
		    store_fan_step_output, 1),
	SENSOR_ATTR(pwm3_max_output, S_IWUSR | S_IRUGO, show_fan_max_output,
		    store_fan_max_output, 2),
	SENSOR_ATTR(pwm3_step_output, S_IWUSR | S_IRUGO, show_fan_step_output,
		    store_fan_step_output, 2),
};

static ssize_t
show_vid(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct w83627ehf_data *data = dev_get_drvdata(dev);
	return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
}
static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);


/* Case open detection */

static ssize_t
show_caseopen(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct w83627ehf_data *data = w83627ehf_update_device(dev);

	return sprintf(buf, "%d\n",
		!!(data->caseopen & to_sensor_dev_attr_2(attr)->index));
}

static ssize_t
clear_caseopen(struct device *dev, struct device_attribute *attr,
			const char *buf, size_t count)
{
	struct w83627ehf_data *data = dev_get_drvdata(dev);
	unsigned long val;
	u16 reg, mask;

	if (strict_strtoul(buf, 10, &val) || val != 0)
		return -EINVAL;

	mask = to_sensor_dev_attr_2(attr)->nr;

	mutex_lock(&data->update_lock);
	reg = w83627ehf_read_value(data, W83627EHF_REG_CASEOPEN_CLR);
	w83627ehf_write_value(data, W83627EHF_REG_CASEOPEN_CLR, reg | mask);
	w83627ehf_write_value(data, W83627EHF_REG_CASEOPEN_CLR, reg & ~mask);
	data->valid = 0;	/* Force cache refresh */
	mutex_unlock(&data->update_lock);

	return count;
}

static struct sensor_device_attribute_2 sda_caseopen[] = {
	SENSOR_ATTR_2(intrusion0_alarm, S_IWUSR | S_IRUGO, show_caseopen,
			clear_caseopen, 0x80, 0x10),
	SENSOR_ATTR_2(intrusion1_alarm, S_IWUSR | S_IRUGO, show_caseopen,
			clear_caseopen, 0x40, 0x40),
};

/*
 * Driver and device management
 */

static void w83627ehf_device_remove_files(struct device *dev)
{
	/* some entries in the following arrays may not have been used in
	 * device_create_file(), but device_remove_file() will ignore them */
	int i;
	struct w83627ehf_data *data = dev_get_drvdata(dev);

	for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays); i++)
		device_remove_file(dev, &sda_sf3_arrays[i].dev_attr);
	for (i = 0; i < ARRAY_SIZE(sda_sf3_max_step_arrays); i++) {
		struct sensor_device_attribute *attr =
		  &sda_sf3_max_step_arrays[i];
		if (data->REG_FAN_STEP_OUTPUT &&
		    data->REG_FAN_STEP_OUTPUT[attr->index] != 0xff)
			device_remove_file(dev, &attr->dev_attr);
	}
	for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays_fan4); i++)
		device_remove_file(dev, &sda_sf3_arrays_fan4[i].dev_attr);
	for (i = 0; i < data->in_num; i++) {
		if ((i == 6) && data->in6_skip)
			continue;
		device_remove_file(dev, &sda_in_input[i].dev_attr);
		device_remove_file(dev, &sda_in_alarm[i].dev_attr);
		device_remove_file(dev, &sda_in_min[i].dev_attr);
		device_remove_file(dev, &sda_in_max[i].dev_attr);
	}
	for (i = 0; i < 5; i++) {
		device_remove_file(dev, &sda_fan_input[i].dev_attr);
		device_remove_file(dev, &sda_fan_alarm[i].dev_attr);
		device_remove_file(dev, &sda_fan_div[i].dev_attr);
		device_remove_file(dev, &sda_fan_min[i].dev_attr);
	}
	for (i = 0; i < data->pwm_num; i++) {
		device_remove_file(dev, &sda_pwm[i].dev_attr);
		device_remove_file(dev, &sda_pwm_mode[i].dev_attr);
		device_remove_file(dev, &sda_pwm_enable[i].dev_attr);
		device_remove_file(dev, &sda_target_temp[i].dev_attr);
		device_remove_file(dev, &sda_tolerance[i].dev_attr);
	}
	for (i = 0; i < NUM_REG_TEMP; i++) {
		if (!(data->have_temp & (1 << i)))
			continue;
		device_remove_file(dev, &sda_temp_input[i].dev_attr);
		device_remove_file(dev, &sda_temp_label[i].dev_attr);
		device_remove_file(dev, &sda_temp_max[i].dev_attr);
		device_remove_file(dev, &sda_temp_max_hyst[i].dev_attr);
		if (i > 2)
			continue;
		device_remove_file(dev, &sda_temp_alarm[i].dev_attr);
		device_remove_file(dev, &sda_temp_type[i].dev_attr);
	}

	device_remove_file(dev, &sda_caseopen[0].dev_attr);
	device_remove_file(dev, &sda_caseopen[1].dev_attr);

	device_remove_file(dev, &dev_attr_name);
	device_remove_file(dev, &dev_attr_cpu0_vid);
}

/* Get the monitoring functions started */
static inline void __devinit w83627ehf_init_device(struct w83627ehf_data *data,
						   enum kinds kind)
{
	int i;
	u8 tmp, diode;

	/* Start monitoring is needed */
	tmp = w83627ehf_read_value(data, W83627EHF_REG_CONFIG);
	if (!(tmp & 0x01))
		w83627ehf_write_value(data, W83627EHF_REG_CONFIG,
				      tmp | 0x01);

	/* Enable temperature sensors if needed */
	for (i = 0; i < NUM_REG_TEMP; i++) {
		if (!(data->have_temp & (1 << i)))
			continue;
		if (!data->reg_temp_config[i])
			continue;
		tmp = w83627ehf_read_value(data,
					   data->reg_temp_config[i]);
		if (tmp & 0x01)
			w83627ehf_write_value(data,
					      data->reg_temp_config[i],
					      tmp & 0xfe);
	}

	/* Enable VBAT monitoring if needed */
	tmp = w83627ehf_read_value(data, W83627EHF_REG_VBAT);
	if (!(tmp & 0x01))
		w83627ehf_write_value(data, W83627EHF_REG_VBAT, tmp | 0x01);

	/* Get thermal sensor types */
	switch (kind) {
	case w83627ehf:
		diode = w83627ehf_read_value(data, W83627EHF_REG_DIODE);
		break;
	default:
		diode = 0x70;
	}
	for (i = 0; i < 3; i++) {
		if ((tmp & (0x02 << i)))
			data->temp_type[i] = (diode & (0x10 << i)) ? 1 : 3;
		else
			data->temp_type[i] = 4; /* thermistor */
	}
}

static void w82627ehf_swap_tempreg(struct w83627ehf_data *data,
				   int r1, int r2)
{
	u16 tmp;

	tmp = data->temp_src[r1];
	data->temp_src[r1] = data->temp_src[r2];
	data->temp_src[r2] = tmp;

	tmp = data->reg_temp[r1];
	data->reg_temp[r1] = data->reg_temp[r2];
	data->reg_temp[r2] = tmp;

	tmp = data->reg_temp_over[r1];
	data->reg_temp_over[r1] = data->reg_temp_over[r2];
	data->reg_temp_over[r2] = tmp;

	tmp = data->reg_temp_hyst[r1];
	data->reg_temp_hyst[r1] = data->reg_temp_hyst[r2];
	data->reg_temp_hyst[r2] = tmp;

	tmp = data->reg_temp_config[r1];
	data->reg_temp_config[r1] = data->reg_temp_config[r2];
	data->reg_temp_config[r2] = tmp;
}

static int __devinit w83627ehf_probe(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;
	struct w83627ehf_sio_data *sio_data = dev->platform_data;
	struct w83627ehf_data *data;
	struct resource *res;
	u8 fan3pin, fan4pin, fan4min, fan5pin, en_vrm10;
	int i, err = 0;

	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
	if (!request_region(res->start, IOREGION_LENGTH, DRVNAME)) {
		err = -EBUSY;
		dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
			(unsigned long)res->start,
			(unsigned long)res->start + IOREGION_LENGTH - 1);
		goto exit;
	}

	data = kzalloc(sizeof(struct w83627ehf_data), GFP_KERNEL);
	if (!data) {
		err = -ENOMEM;
		goto exit_release;
	}

	data->addr = res->start;
	mutex_init(&data->lock);
	mutex_init(&data->update_lock);
	data->name = w83627ehf_device_names[sio_data->kind];
	platform_set_drvdata(pdev, data);

	/* 627EHG and 627EHF have 10 voltage inputs; 627DHG and 667HG have 9 */
	data->in_num = (sio_data->kind == w83627ehf) ? 10 : 9;
	/* 667HG, NCT6775F, and NCT6776F have 3 pwms */
	data->pwm_num = (sio_data->kind == w83667hg
			 || sio_data->kind == w83667hg_b
			 || sio_data->kind == nct6775
			 || sio_data->kind == nct6776) ? 3 : 4;

	data->have_temp = 0x07;
	/* Check temp3 configuration bit for 667HG */
	if (sio_data->kind == w83667hg) {
		u8 reg;

		reg = w83627ehf_read_value(data, W83627EHF_REG_TEMP_CONFIG[2]);
		if (reg & 0x01)
			data->have_temp &= ~(1 << 2);
		else
			data->in6_skip = 1;	/* either temp3 or in6 */
	}

	/* Deal with temperature register setup first. */
	if (sio_data->kind == nct6775 || sio_data->kind == nct6776) {
		int mask = 0;

		/*
		 * Display temperature sensor output only if it monitors
		 * a source other than one already reported. Always display
		 * first three temperature registers, though.
		 */
		for (i = 0; i < NUM_REG_TEMP; i++) {
			u8 src;

			data->reg_temp[i] = NCT6775_REG_TEMP[i];
			data->reg_temp_over[i] = NCT6775_REG_TEMP_OVER[i];
			data->reg_temp_hyst[i] = NCT6775_REG_TEMP_HYST[i];
			data->reg_temp_config[i] = NCT6775_REG_TEMP_CONFIG[i];

			src = w83627ehf_read_value(data,
						   NCT6775_REG_TEMP_SOURCE[i]);
			src &= 0x1f;
			if (src && !(mask & (1 << src))) {
				data->have_temp |= 1 << i;
				mask |= 1 << src;
			}

			data->temp_src[i] = src;

			/*
			 * Now do some register swapping if index 0..2 don't
			 * point to SYSTIN(1), CPUIN(2), and AUXIN(3).
			 * Idea is to have the first three attributes
			 * report SYSTIN, CPUIN, and AUXIN if possible
			 * without overriding the basic system configuration.
			 */
			if (i > 0 && data->temp_src[0] != 1
			    && data->temp_src[i] == 1)
				w82627ehf_swap_tempreg(data, 0, i);
			if (i > 1 && data->temp_src[1] != 2
			    && data->temp_src[i] == 2)
				w82627ehf_swap_tempreg(data, 1, i);
			if (i > 2 && data->temp_src[2] != 3
			    && data->temp_src[i] == 3)
				w82627ehf_swap_tempreg(data, 2, i);
		}
		if (sio_data->kind == nct6776) {
			/*
			 * On NCT6776, AUXTIN and VIN3 pins are shared.
			 * Only way to detect it is to check if AUXTIN is used
			 * as a temperature source, and if that source is
			 * enabled.
			 *
			 * If that is the case, disable in6, which reports VIN3.
			 * Otherwise disable temp3.
			 */
			if (data->temp_src[2] == 3) {
				u8 reg;

				if (data->reg_temp_config[2])
					reg = w83627ehf_read_value(data,
						data->reg_temp_config[2]);
				else
					reg = 0; /* Assume AUXTIN is used */

				if (reg & 0x01)
					data->have_temp &= ~(1 << 2);
				else
					data->in6_skip = 1;
			}
			data->temp_label = nct6776_temp_label;
		} else {
			data->temp_label = nct6775_temp_label;
		}
	} else if (sio_data->kind == w83667hg_b) {
		u8 reg;

		/*
		 * Temperature sources are selected with bank 0, registers 0x49
		 * and 0x4a.
		 */
		for (i = 0; i < ARRAY_SIZE(W83627EHF_REG_TEMP); i++) {
			data->reg_temp[i] = W83627EHF_REG_TEMP[i];
			data->reg_temp_over[i] = W83627EHF_REG_TEMP_OVER[i];
			data->reg_temp_hyst[i] = W83627EHF_REG_TEMP_HYST[i];
			data->reg_temp_config[i] = W83627EHF_REG_TEMP_CONFIG[i];
		}
		reg = w83627ehf_read_value(data, 0x4a);
		data->temp_src[0] = reg >> 5;
		reg = w83627ehf_read_value(data, 0x49);
		data->temp_src[1] = reg & 0x07;
		data->temp_src[2] = (reg >> 4) & 0x07;

		/*
		 * W83667HG-B has another temperature register at 0x7e.
		 * The temperature source is selected with register 0x7d.
		 * Support it if the source differs from already reported
		 * sources.
		 */
		reg = w83627ehf_read_value(data, 0x7d);
		reg &= 0x07;
		if (reg != data->temp_src[0] && reg != data->temp_src[1]
		    && reg != data->temp_src[2]) {
			data->temp_src[3] = reg;
			data->have_temp |= 1 << 3;
		}

		/*
		 * Chip supports either AUXTIN or VIN3. Try to find out which