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Commit bbd8decd authored by Guenter Roeck's avatar Guenter Roeck
Browse files

hwmon: (nct6775) Add support for weighted fan control 



The NCT677X series support weighted fan control. In this mode, a secondary
temperature source is used in addition to the primary temperature source to
control fan speed. Add support for this feature.

Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent cdcaeceb

Documentation/hwmon/nct6775

+19 −0
Original line number Diff line number Diff line
@@ -92,6 +92,25 @@ Common fan control attributes 


pwm[1-5]_temp_sel	Temperature source. Value is temperature sensor index.

			For example, select '1' for temp1_input.

pwm[1-5]_weight_temp_sel

			Secondary temperature source. Value is temperature

			sensor index. For example, select '1' for temp1_input.

			Set to 0 to disable secondary temperature control.



If secondary temperature functionality is enabled, it is controlled with the

following attributes.



pwm[1-5]_weight_duty_step

			Duty step size.

pwm[1-5]_weight_temp_step

			Temperature step size. With each step over

			temp_step_base, the value of weight_duty_step is added

			to the current pwm value.

pwm[1-5]_weight_temp_step_base

			Temperature at which secondary temperature control kicks

			in.

pwm[1-5]_weight_temp_step_tol

			Temperature step tolerance.



Thermal Cruise mode (2)

-----------------------

drivers/hwmon/nct6775.c

+266 −14
Original line number Diff line number Diff line
@@ -255,6 +255,17 @@ static const u16 NCT6775_REG_TEMP_SOURCE[ARRAY_SIZE(NCT6775_REG_TEMP)] = { 
static const u16 NCT6775_REG_TEMP_SEL[] = {

	0x100, 0x200, 0x300, 0x800, 0x900 };



static const u16 NCT6775_REG_WEIGHT_TEMP_SEL[] = {

	0x139, 0x239, 0x339, 0x839, 0x939 };

static const u16 NCT6775_REG_WEIGHT_TEMP_STEP[] = {

	0x13a, 0x23a, 0x33a, 0x83a, 0x93a };

static const u16 NCT6775_REG_WEIGHT_TEMP_STEP_TOL[] = {

	0x13b, 0x23b, 0x33b, 0x83b, 0x93b };

static const u16 NCT6775_REG_WEIGHT_DUTY_STEP[] = {

	0x13c, 0x23c, 0x33c, 0x83c, 0x93c };

static const u16 NCT6775_REG_WEIGHT_TEMP_BASE[] = {

	0x13d, 0x23d, 0x33d, 0x83d, 0x93d };



static const u16 NCT6775_REG_TEMP_OFFSET[] = { 0x454, 0x455, 0x456 };



static const u16 NCT6775_REG_AUTO_TEMP[] = {
@@ -323,6 +334,9 @@ static const u8 NCT6776_PWM_MODE_MASK[] = { 0x01, 0, 0 }; 
static const u16 NCT6776_REG_FAN_MIN[] = { 0x63a, 0x63c, 0x63e, 0x640, 0x642 };

static const u16 NCT6776_REG_FAN_PULSES[] = { 0x644, 0x645, 0x646, 0, 0 };



static const u16 NCT6776_REG_WEIGHT_DUTY_BASE[] = {

	0x13e, 0x23e, 0x33e, 0x83e, 0x93e };



static const u16 NCT6776_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6775_REG_TEMP)] = {

	0x18, 0x152, 0x252, 0x628, 0x629, 0x62A };
@@ -571,8 +585,9 @@ struct nct6775_data { 
	const u8 *REG_PWM_MODE;

	const u8 *PWM_MODE_MASK;



	const u16 *REG_PWM[5];	/* [0]=pwm, [1]=pwm_start, [2]=pwm_floor,

				 * [3]=pwm_max, [4]=pwm_step

	const u16 *REG_PWM[7];	/* [0]=pwm, [1]=pwm_start, [2]=pwm_floor,

				 * [3]=pwm_max, [4]=pwm_step,

				 * [5]=weight_duty_step, [6]=weight_duty_base

				 */

	const u16 *REG_PWM_READ;
@@ -584,6 +599,9 @@ struct nct6775_data { 


	const u16 *REG_TEMP_SOURCE;	/* temp register sources */

	const u16 *REG_TEMP_SEL;

	const u16 *REG_WEIGHT_TEMP_SEL;

	const u16 *REG_WEIGHT_TEMP[3];	/* 0=base, 1=tolerance, 2=step */



	const u16 *REG_TEMP_OFFSET;



	const u16 *REG_ALARM;
@@ -625,8 +643,9 @@ struct nct6775_data { 
			 * 4->SmartFan III

			 * 5->enhanced variable thermal cruise (SmartFan IV)

			 */

	u8 pwm[5][5];	/* [0]=pwm, [1]=pwm_start, [2]=pwm_floor,

			 * [3]=pwm_max, [4]=pwm_step

	u8 pwm[7][5];	/* [0]=pwm, [1]=pwm_start, [2]=pwm_floor,

			 * [3]=pwm_max, [4]=pwm_step,

			 * [5]=weight_duty_step, [6]=weight_duty_base

			 */



	u8 target_temp[5];
@@ -645,6 +664,10 @@ struct nct6775_data { 
	u8 auto_pwm[5][7];

	u8 auto_temp[5][7];

	u8 pwm_temp_sel[5];

	u8 pwm_weight_temp_sel[5];

	u8 weight_temp[3][5];	/* 0->temp_step, 1->temp_step_tol,

				 * 2->temp_base

				 */



	u8 vid;

	u8 vrm;
@@ -972,6 +995,19 @@ static void nct6775_update_pwm(struct device *dev) 
		/* If fan can stop, report floor as 0 */

		if (reg & 0x80)

			data->pwm[2][i] = 0;



		reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[i]);

		data->pwm_weight_temp_sel[i] = reg & 0x1f;

		/* If weight is disabled, report weight source as 0 */

		if (j == 1 && !(reg & 0x80))

			data->pwm_weight_temp_sel[i] = 0;



		/* Weight temp data */

		for (j = 0; j < 3; j++) {

			data->weight_temp[j][i]

			  = nct6775_read_value(data,

					       data->REG_WEIGHT_TEMP[j][i]);

		}

	}

}
@@ -1938,9 +1974,9 @@ store_pwm(struct device *dev, struct device_attribute *attr, const char *buf, 
	int nr = sattr->nr;

	int index = sattr->index;

	unsigned long val;

	int minval[5] = { 0, 1, 1, data->pwm[2][nr], 0 };

	int maxval[5]

	  = { 255, 255, data->pwm[3][nr] ? : 255, 255, 255 };

	int minval[7] = { 0, 1, 1, data->pwm[2][nr], 0, 0, 0 };

	int maxval[7]

	  = { 255, 255, data->pwm[3][nr] ? : 255, 255, 255, 255, 255 };

	int err;

	u8 reg;
@@ -2078,13 +2114,9 @@ store_pwm_enable(struct device *dev, struct device_attribute *attr, 
}



static ssize_t

show_pwm_temp_sel(struct device *dev, struct device_attribute *attr, char *buf)

show_pwm_temp_sel_common(struct nct6775_data *data, char *buf, int src)

{

	struct nct6775_data *data = nct6775_update_device(dev);

	struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);

	int i, src, sel = 0;



	src = data->pwm_temp_sel[sattr->index];

	int i, sel = 0;



	for (i = 0; i < NUM_TEMP; i++) {

		if (!(data->have_temp & (1 << i)))
@@ -2098,6 +2130,16 @@ show_pwm_temp_sel(struct device *dev, struct device_attribute *attr, char *buf) 
	return sprintf(buf, "%d\n", sel);

}



static ssize_t

show_pwm_temp_sel(struct device *dev, struct device_attribute *attr, char *buf)

{

	struct nct6775_data *data = nct6775_update_device(dev);

	struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);

	int index = sattr->index;



	return show_pwm_temp_sel_common(data, buf, data->pwm_temp_sel[index]);

}



static ssize_t

store_pwm_temp_sel(struct device *dev, struct device_attribute *attr,

		   const char *buf, size_t count)
@@ -2128,6 +2170,56 @@ store_pwm_temp_sel(struct device *dev, struct device_attribute *attr, 
	return count;

}



static ssize_t

show_pwm_weight_temp_sel(struct device *dev, struct device_attribute *attr,

			 char *buf)

{

	struct nct6775_data *data = nct6775_update_device(dev);

	struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);

	int index = sattr->index;



	return show_pwm_temp_sel_common(data, buf,

					data->pwm_weight_temp_sel[index]);

}



static ssize_t

store_pwm_weight_temp_sel(struct device *dev, struct device_attribute *attr,

			  const char *buf, size_t count)

{

	struct nct6775_data *data = nct6775_update_device(dev);

	struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);

	int nr = sattr->index;

	unsigned long val;

	int err, reg, src;



	err = kstrtoul(buf, 10, &val);

	if (err < 0)

		return err;

	if (val > NUM_TEMP)

		return -EINVAL;

	if (val && (!(data->have_temp & (1 << (val - 1))) ||

		    !data->temp_src[val - 1]))

		return -EINVAL;



	mutex_lock(&data->update_lock);

	if (val) {

		src = data->temp_src[val - 1];

		data->pwm_weight_temp_sel[nr] = src;

		reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[nr]);

		reg &= 0xe0;

		reg |= (src | 0x80);

		nct6775_write_value(data, data->REG_WEIGHT_TEMP_SEL[nr], reg);

	} else {

		data->pwm_weight_temp_sel[nr] = 0;

		reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[nr]);

		reg &= 0x7f;

		nct6775_write_value(data, data->REG_WEIGHT_TEMP_SEL[nr], reg);

	}

	mutex_unlock(&data->update_lock);



	return count;

}



static ssize_t

show_target_temp(struct device *dev, struct device_attribute *attr, char *buf)

{
@@ -2380,6 +2472,115 @@ static SENSOR_DEVICE_ATTR(fan5_tolerance, S_IWUSR | S_IRUGO, 


/* Smart Fan registers */



static ssize_t

show_weight_temp(struct device *dev, struct device_attribute *attr, char *buf)

{

	struct nct6775_data *data = nct6775_update_device(dev);

	struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);

	int nr = sattr->nr;

	int index = sattr->index;



	return sprintf(buf, "%d\n", data->weight_temp[index][nr] * 1000);

}



static ssize_t

store_weight_temp(struct device *dev, struct device_attribute *attr,

		  const char *buf, size_t count)

{

	struct nct6775_data *data = dev_get_drvdata(dev);

	struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);

	int nr = sattr->nr;

	int index = sattr->index;

	unsigned long val;

	int err;



	err = kstrtoul(buf, 10, &val);

	if (err < 0)

		return err;



	val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, 255);



	mutex_lock(&data->update_lock);

	data->weight_temp[index][nr] = val;

	nct6775_write_value(data, data->REG_WEIGHT_TEMP[index][nr], val);

	mutex_unlock(&data->update_lock);

	return count;

}



static SENSOR_DEVICE_ATTR(pwm1_weight_temp_sel, S_IWUSR | S_IRUGO,

			    show_pwm_weight_temp_sel, store_pwm_weight_temp_sel,

			    0);

static SENSOR_DEVICE_ATTR(pwm2_weight_temp_sel, S_IWUSR | S_IRUGO,

			    show_pwm_weight_temp_sel, store_pwm_weight_temp_sel,

			    1);

static SENSOR_DEVICE_ATTR(pwm3_weight_temp_sel, S_IWUSR | S_IRUGO,

			    show_pwm_weight_temp_sel, store_pwm_weight_temp_sel,

			    2);

static SENSOR_DEVICE_ATTR(pwm4_weight_temp_sel, S_IWUSR | S_IRUGO,

			    show_pwm_weight_temp_sel, store_pwm_weight_temp_sel,

			    3);

static SENSOR_DEVICE_ATTR(pwm5_weight_temp_sel, S_IWUSR | S_IRUGO,

			    show_pwm_weight_temp_sel, store_pwm_weight_temp_sel,

			    4);



static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_step, S_IWUSR | S_IRUGO,

			    show_weight_temp, store_weight_temp, 0, 0);

static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_step, S_IWUSR | S_IRUGO,

			    show_weight_temp, store_weight_temp, 1, 0);

static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_step, S_IWUSR | S_IRUGO,

			    show_weight_temp, store_weight_temp, 2, 0);

static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_step, S_IWUSR | S_IRUGO,

			    show_weight_temp, store_weight_temp, 3, 0);

static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_step, S_IWUSR | S_IRUGO,

			    show_weight_temp, store_weight_temp, 4, 0);



static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_step_tol, S_IWUSR | S_IRUGO,

			    show_weight_temp, store_weight_temp, 0, 1);

static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_step_tol, S_IWUSR | S_IRUGO,

			    show_weight_temp, store_weight_temp, 1, 1);

static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_step_tol, S_IWUSR | S_IRUGO,

			    show_weight_temp, store_weight_temp, 2, 1);

static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_step_tol, S_IWUSR | S_IRUGO,

			    show_weight_temp, store_weight_temp, 3, 1);

static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_step_tol, S_IWUSR | S_IRUGO,

			    show_weight_temp, store_weight_temp, 4, 1);



static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_step_base, S_IWUSR | S_IRUGO,

			    show_weight_temp, store_weight_temp, 0, 2);

static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_step_base, S_IWUSR | S_IRUGO,

			    show_weight_temp, store_weight_temp, 1, 2);

static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_step_base, S_IWUSR | S_IRUGO,

			    show_weight_temp, store_weight_temp, 2, 2);

static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_step_base, S_IWUSR | S_IRUGO,

			    show_weight_temp, store_weight_temp, 3, 2);

static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_step_base, S_IWUSR | S_IRUGO,

			    show_weight_temp, store_weight_temp, 4, 2);



static SENSOR_DEVICE_ATTR_2(pwm1_weight_duty_step, S_IWUSR | S_IRUGO,

			    show_pwm, store_pwm, 0, 5);

static SENSOR_DEVICE_ATTR_2(pwm2_weight_duty_step, S_IWUSR | S_IRUGO,

			    show_pwm, store_pwm, 1, 5);

static SENSOR_DEVICE_ATTR_2(pwm3_weight_duty_step, S_IWUSR | S_IRUGO,

			    show_pwm, store_pwm, 2, 5);

static SENSOR_DEVICE_ATTR_2(pwm4_weight_duty_step, S_IWUSR | S_IRUGO,

			    show_pwm, store_pwm, 3, 5);

static SENSOR_DEVICE_ATTR_2(pwm5_weight_duty_step, S_IWUSR | S_IRUGO,

			    show_pwm, store_pwm, 4, 5);



/* duty_base is not supported on all chips */

static struct sensor_device_attribute_2 sda_weight_duty_base[] = {

	SENSOR_ATTR_2(pwm1_weight_duty_base, S_IWUSR | S_IRUGO,

		      show_pwm, store_pwm, 0, 6),

	SENSOR_ATTR_2(pwm2_weight_duty_base, S_IWUSR | S_IRUGO,

		      show_pwm, store_pwm, 1, 6),

	SENSOR_ATTR_2(pwm3_weight_duty_base, S_IWUSR | S_IRUGO,

		      show_pwm, store_pwm, 2, 6),

	SENSOR_ATTR_2(pwm4_weight_duty_base, S_IWUSR | S_IRUGO,

		      show_pwm, store_pwm, 3, 6),

	SENSOR_ATTR_2(pwm5_weight_duty_base, S_IWUSR | S_IRUGO,

		      show_pwm, store_pwm, 4, 6),

};



static ssize_t

show_fan_time(struct device *dev, struct device_attribute *attr, char *buf)

{
@@ -2526,7 +2727,7 @@ static struct sensor_device_attribute_2 sda_pwm_step[] = { 
	SENSOR_ATTR_2(pwm5_step, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 4, 4),

};



static struct attribute *nct6775_attributes_pwm[5][15] = {

static struct attribute *nct6775_attributes_pwm[5][20] = {

	{

		&sensor_dev_attr_pwm1.dev_attr.attr,

		&sensor_dev_attr_pwm1_mode.dev_attr.attr,
@@ -2542,6 +2743,11 @@ static struct attribute *nct6775_attributes_pwm[5][15] = { 
		&sensor_dev_attr_pwm1_step_down_time.dev_attr.attr,

		&sensor_dev_attr_pwm1_start.dev_attr.attr,

		&sensor_dev_attr_pwm1_floor.dev_attr.attr,

		&sensor_dev_attr_pwm1_weight_temp_sel.dev_attr.attr,

		&sensor_dev_attr_pwm1_weight_temp_step.dev_attr.attr,

		&sensor_dev_attr_pwm1_weight_temp_step_tol.dev_attr.attr,

		&sensor_dev_attr_pwm1_weight_temp_step_base.dev_attr.attr,

		&sensor_dev_attr_pwm1_weight_duty_step.dev_attr.attr,

		NULL

	},

	{
@@ -2559,6 +2765,11 @@ static struct attribute *nct6775_attributes_pwm[5][15] = { 
		&sensor_dev_attr_pwm2_step_down_time.dev_attr.attr,

		&sensor_dev_attr_pwm2_start.dev_attr.attr,

		&sensor_dev_attr_pwm2_floor.dev_attr.attr,

		&sensor_dev_attr_pwm2_weight_temp_sel.dev_attr.attr,

		&sensor_dev_attr_pwm2_weight_temp_step.dev_attr.attr,

		&sensor_dev_attr_pwm2_weight_temp_step_tol.dev_attr.attr,

		&sensor_dev_attr_pwm2_weight_temp_step_base.dev_attr.attr,

		&sensor_dev_attr_pwm2_weight_duty_step.dev_attr.attr,

		NULL

	},

	{
@@ -2576,6 +2787,11 @@ static struct attribute *nct6775_attributes_pwm[5][15] = { 
		&sensor_dev_attr_pwm3_step_down_time.dev_attr.attr,

		&sensor_dev_attr_pwm3_start.dev_attr.attr,

		&sensor_dev_attr_pwm3_floor.dev_attr.attr,

		&sensor_dev_attr_pwm3_weight_temp_sel.dev_attr.attr,

		&sensor_dev_attr_pwm3_weight_temp_step.dev_attr.attr,

		&sensor_dev_attr_pwm3_weight_temp_step_tol.dev_attr.attr,

		&sensor_dev_attr_pwm3_weight_temp_step_base.dev_attr.attr,

		&sensor_dev_attr_pwm3_weight_duty_step.dev_attr.attr,

		NULL

	},

	{
@@ -2593,6 +2809,11 @@ static struct attribute *nct6775_attributes_pwm[5][15] = { 
		&sensor_dev_attr_pwm4_step_down_time.dev_attr.attr,

		&sensor_dev_attr_pwm4_start.dev_attr.attr,

		&sensor_dev_attr_pwm4_floor.dev_attr.attr,

		&sensor_dev_attr_pwm4_weight_temp_sel.dev_attr.attr,

		&sensor_dev_attr_pwm4_weight_temp_step.dev_attr.attr,

		&sensor_dev_attr_pwm4_weight_temp_step_tol.dev_attr.attr,

		&sensor_dev_attr_pwm4_weight_temp_step_base.dev_attr.attr,

		&sensor_dev_attr_pwm4_weight_duty_step.dev_attr.attr,

		NULL

	},

	{
@@ -2610,6 +2831,11 @@ static struct attribute *nct6775_attributes_pwm[5][15] = { 
		&sensor_dev_attr_pwm5_step_down_time.dev_attr.attr,

		&sensor_dev_attr_pwm5_start.dev_attr.attr,

		&sensor_dev_attr_pwm5_floor.dev_attr.attr,

		&sensor_dev_attr_pwm5_weight_temp_sel.dev_attr.attr,

		&sensor_dev_attr_pwm5_weight_temp_step.dev_attr.attr,

		&sensor_dev_attr_pwm5_weight_temp_step_tol.dev_attr.attr,

		&sensor_dev_attr_pwm5_weight_temp_step_base.dev_attr.attr,

		&sensor_dev_attr_pwm5_weight_duty_step.dev_attr.attr,

		NULL

	},

};
@@ -2974,6 +3200,9 @@ static void nct6775_device_remove_files(struct device *dev) 
	for (i = 0; i < ARRAY_SIZE(sda_pwm_step); i++)

		device_remove_file(dev, &sda_pwm_step[i].dev_attr);



	for (i = 0; i < ARRAY_SIZE(sda_weight_duty_base); i++)

		device_remove_file(dev, &sda_weight_duty_base[i].dev_attr);



	for (i = 0; i < ARRAY_SIZE(sda_auto_pwm_arrays); i++)

		device_remove_file(dev, &sda_auto_pwm_arrays[i].dev_attr);
@@ -3203,6 +3432,7 @@ static int nct6775_probe(struct platform_device *pdev) 
		data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;

		data->REG_PWM[3] = NCT6775_REG_FAN_MAX_OUTPUT;

		data->REG_PWM[4] = NCT6775_REG_FAN_STEP_OUTPUT;

		data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;

		data->REG_PWM_READ = NCT6775_REG_PWM_READ;

		data->REG_PWM_MODE = NCT6775_REG_PWM_MODE;

		data->PWM_MODE_MASK = NCT6775_PWM_MODE_MASK;
@@ -3214,6 +3444,10 @@ static int nct6775_probe(struct platform_device *pdev) 
		data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;

		data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;

		data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;

		data->REG_WEIGHT_TEMP_SEL = NCT6775_REG_WEIGHT_TEMP_SEL;

		data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;

		data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;

		data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;

		data->REG_ALARM = NCT6775_REG_ALARM;



		reg_temp = NCT6775_REG_TEMP;
@@ -3261,6 +3495,8 @@ static int nct6775_probe(struct platform_device *pdev) 
		data->REG_PWM[0] = NCT6775_REG_PWM;

		data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;

		data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;

		data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;

		data->REG_PWM[6] = NCT6776_REG_WEIGHT_DUTY_BASE;

		data->REG_PWM_READ = NCT6775_REG_PWM_READ;

		data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;

		data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
@@ -3272,6 +3508,10 @@ static int nct6775_probe(struct platform_device *pdev) 
		data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;

		data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;

		data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;

		data->REG_WEIGHT_TEMP_SEL = NCT6775_REG_WEIGHT_TEMP_SEL;

		data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;

		data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;

		data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;

		data->REG_ALARM = NCT6775_REG_ALARM;



		reg_temp = NCT6775_REG_TEMP;
@@ -3319,6 +3559,8 @@ static int nct6775_probe(struct platform_device *pdev) 
		data->REG_PWM[0] = NCT6775_REG_PWM;

		data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;

		data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;

		data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;

		data->REG_PWM[6] = NCT6776_REG_WEIGHT_DUTY_BASE;

		data->REG_PWM_READ = NCT6775_REG_PWM_READ;

		data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;

		data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
@@ -3330,6 +3572,10 @@ static int nct6775_probe(struct platform_device *pdev) 
		data->REG_TEMP_OFFSET = NCT6779_REG_TEMP_OFFSET;

		data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;

		data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;

		data->REG_WEIGHT_TEMP_SEL = NCT6775_REG_WEIGHT_TEMP_SEL;

		data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;

		data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;

		data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;

		data->REG_ALARM = NCT6779_REG_ALARM;



		reg_temp = NCT6779_REG_TEMP;
@@ -3557,6 +3803,12 @@ static int nct6775_probe(struct platform_device *pdev) 
			if (err)

				goto exit_remove;

		}

		if (data->REG_PWM[6]) {

			err = device_create_file(dev,

					&sda_weight_duty_base[i].dev_attr);

			if (err)

				goto exit_remove;

		}

	}

	for (i = 0; i < ARRAY_SIZE(sda_auto_pwm_arrays); i++) {

		struct sensor_device_attribute_2 *attr =