Commit dbc2bc25 authored by Jean Delvare's avatar Jean Delvare Committed by Jean Delvare
Browse files

hwmon: (dme1737) Be less i2c-centric 



The dme1737 driver support both LPC (ISA) and SMBus devices. At the
moment it's rather i2c-centric, and LPC variants use a fake i2c_client
for some operations.

In a near future, i2c_client will be allocated by i2c-core rather than
by the device drivers, so non-i2c drivers will not have one. As a
preparation step, change the driver code to no longer assume that
an i2c_client structure is always available. No functional change.

Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
Cc: Juerg Haefliger <juergh@gmail.com>
parent b84ee0b0

drivers/hwmon/dme1737.c

+111 −115
Original line number Diff line number Diff line
@@ -175,11 +175,12 @@ static const u8 DME1737_BIT_ALARM_FAN[] = {10, 11, 12, 13, 22, 23}; 
 * Data structures and manipulation thereof

 * --------------------------------------------------------------------- */



/* For ISA chips, we abuse the i2c_client addr and name fields. We also use

   the driver field to differentiate between I2C and ISA chips. */

struct dme1737_data {

	struct i2c_client client;

	struct i2c_client _client;	/* will go away soon */

	struct i2c_client *client;	/* for I2C devices only */

	struct device *hwmon_dev;

	const char *name;

	unsigned int addr;		/* for ISA devices only */



	struct mutex update_lock;

	int valid;			/* !=0 if following fields are valid */
@@ -512,11 +513,12 @@ static inline int PWM_OFF_TO_REG(int val, int ix, int reg) 
 * before calling dme1737_read or dme1737_write.

 * --------------------------------------------------------------------- */



static u8 dme1737_read(struct i2c_client *client, u8 reg)

static u8 dme1737_read(const struct dme1737_data *data, u8 reg)

{

	struct i2c_client *client = data->client;

	s32 val;



	if (client->driver) { /* I2C device */

	if (client) { /* I2C device */

		val = i2c_smbus_read_byte_data(client, reg);



		if (val < 0) {
@@ -525,18 +527,19 @@ static u8 dme1737_read(struct i2c_client *client, u8 reg) 
				 "maintainer.\n", reg);

		}

	} else { /* ISA device */

		outb(reg, client->addr);

		val = inb(client->addr + 1);

		outb(reg, data->addr);

		val = inb(data->addr + 1);

	}



	return val;

}



static s32 dme1737_write(struct i2c_client *client, u8 reg, u8 val)

static s32 dme1737_write(const struct dme1737_data *data, u8 reg, u8 val)

{

	struct i2c_client *client = data->client;

	s32 res = 0;



	if (client->driver) { /* I2C device */

	if (client) { /* I2C device */

		res = i2c_smbus_write_byte_data(client, reg, val);



		if (res < 0) {
@@ -545,8 +548,8 @@ static s32 dme1737_write(struct i2c_client *client, u8 reg, u8 val) 
				 "maintainer.\n", reg);

		}

	} else { /* ISA device */

		outb(reg, client->addr);

		outb(val, client->addr + 1);

		outb(reg, data->addr);

		outb(val, data->addr + 1);

	}



	return res;
@@ -555,7 +558,6 @@ static s32 dme1737_write(struct i2c_client *client, u8 reg, u8 val) 
static struct dme1737_data *dme1737_update_device(struct device *dev)

{

	struct dme1737_data *data = dev_get_drvdata(dev);

	struct i2c_client *client = &data->client;

	int ix;

	u8 lsb[5];
@@ -563,7 +565,7 @@ static struct dme1737_data *dme1737_update_device(struct device *dev) 


	/* Enable a Vbat monitoring cycle every 10 mins */

	if (time_after(jiffies, data->last_vbat + 600 * HZ) || !data->valid) {

		dme1737_write(client, DME1737_REG_CONFIG, dme1737_read(client,

		dme1737_write(data, DME1737_REG_CONFIG, dme1737_read(data,

						DME1737_REG_CONFIG) | 0x10);

		data->last_vbat = jiffies;

	}
@@ -571,7 +573,7 @@ static struct dme1737_data *dme1737_update_device(struct device *dev) 
	/* Sample register contents every 1 sec */

	if (time_after(jiffies, data->last_update + HZ) || !data->valid) {

		if (data->type != sch5027) {

			data->vid = dme1737_read(client, DME1737_REG_VID) &

			data->vid = dme1737_read(data, DME1737_REG_VID) &

				0x3f;

		}
@@ -580,11 +582,11 @@ static struct dme1737_data *dme1737_update_device(struct device *dev) 
			/* Voltage inputs are stored as 16 bit values even

			 * though they have only 12 bits resolution. This is

			 * to make it consistent with the temp inputs. */

			data->in[ix] = dme1737_read(client,

			data->in[ix] = dme1737_read(data,

					DME1737_REG_IN(ix)) << 8;

			data->in_min[ix] = dme1737_read(client,

			data->in_min[ix] = dme1737_read(data,

					DME1737_REG_IN_MIN(ix));

			data->in_max[ix] = dme1737_read(client,

			data->in_max[ix] = dme1737_read(data,

					DME1737_REG_IN_MAX(ix));

		}
@@ -595,14 +597,14 @@ static struct dme1737_data *dme1737_update_device(struct device *dev) 
			 * to take advantage of implicit conversions between

			 * register values (2's complement) and temp values

			 * (signed decimal). */

			data->temp[ix] = dme1737_read(client,

			data->temp[ix] = dme1737_read(data,

					DME1737_REG_TEMP(ix)) << 8;

			data->temp_min[ix] = dme1737_read(client,

			data->temp_min[ix] = dme1737_read(data,

					DME1737_REG_TEMP_MIN(ix));

			data->temp_max[ix] = dme1737_read(client,

			data->temp_max[ix] = dme1737_read(data,

					DME1737_REG_TEMP_MAX(ix));

			if (data->type != sch5027) {

				data->temp_offset[ix] = dme1737_read(client,

				data->temp_offset[ix] = dme1737_read(data,

						DME1737_REG_TEMP_OFFSET(ix));

			}

		}
@@ -612,7 +614,7 @@ static struct dme1737_data *dme1737_update_device(struct device *dev) 
		 * which the registers are read (MSB first, then LSB) is

		 * important! */

		for (ix = 0; ix < ARRAY_SIZE(lsb); ix++) {

			lsb[ix] = dme1737_read(client,

			lsb[ix] = dme1737_read(data,

					DME1737_REG_IN_TEMP_LSB(ix));

		}

		for (ix = 0; ix < ARRAY_SIZE(data->in); ix++) {
@@ -631,19 +633,19 @@ static struct dme1737_data *dme1737_update_device(struct device *dev) 
			if (!(data->has_fan & (1 << ix))) {

				continue;

			}

			data->fan[ix] = dme1737_read(client,

			data->fan[ix] = dme1737_read(data,

					DME1737_REG_FAN(ix));

			data->fan[ix] |= dme1737_read(client,

			data->fan[ix] |= dme1737_read(data,

					DME1737_REG_FAN(ix) + 1) << 8;

			data->fan_min[ix] = dme1737_read(client,

			data->fan_min[ix] = dme1737_read(data,

					DME1737_REG_FAN_MIN(ix));

			data->fan_min[ix] |= dme1737_read(client,

			data->fan_min[ix] |= dme1737_read(data,

					DME1737_REG_FAN_MIN(ix) + 1) << 8;

			data->fan_opt[ix] = dme1737_read(client,

			data->fan_opt[ix] = dme1737_read(data,

					DME1737_REG_FAN_OPT(ix));

			/* fan_max exists only for fan[5-6] */

			if (ix > 3) {

				data->fan_max[ix - 4] = dme1737_read(client,

				data->fan_max[ix - 4] = dme1737_read(data,

					DME1737_REG_FAN_MAX(ix));

			}

		}
@@ -655,63 +657,63 @@ static struct dme1737_data *dme1737_update_device(struct device *dev) 
			if (!(data->has_pwm & (1 << ix))) {

				continue;

			}

			data->pwm[ix] = dme1737_read(client,

			data->pwm[ix] = dme1737_read(data,

					DME1737_REG_PWM(ix));

			data->pwm_freq[ix] = dme1737_read(client,

			data->pwm_freq[ix] = dme1737_read(data,

					DME1737_REG_PWM_FREQ(ix));

			/* pwm_config and pwm_min exist only for pwm[1-3] */

			if (ix < 3) {

				data->pwm_config[ix] = dme1737_read(client,

				data->pwm_config[ix] = dme1737_read(data,

						DME1737_REG_PWM_CONFIG(ix));

				data->pwm_min[ix] = dme1737_read(client,

				data->pwm_min[ix] = dme1737_read(data,

						DME1737_REG_PWM_MIN(ix));

			}

		}

		for (ix = 0; ix < ARRAY_SIZE(data->pwm_rr); ix++) {

			data->pwm_rr[ix] = dme1737_read(client,

			data->pwm_rr[ix] = dme1737_read(data,

						DME1737_REG_PWM_RR(ix));

		}



		/* Thermal zone registers */

		for (ix = 0; ix < ARRAY_SIZE(data->zone_low); ix++) {

			data->zone_low[ix] = dme1737_read(client,

			data->zone_low[ix] = dme1737_read(data,

					DME1737_REG_ZONE_LOW(ix));

			data->zone_abs[ix] = dme1737_read(client,

			data->zone_abs[ix] = dme1737_read(data,

					DME1737_REG_ZONE_ABS(ix));

		}

		if (data->type != sch5027) {

			for (ix = 0; ix < ARRAY_SIZE(data->zone_hyst); ix++) {

				data->zone_hyst[ix] = dme1737_read(client,

				data->zone_hyst[ix] = dme1737_read(data,

						DME1737_REG_ZONE_HYST(ix));

			}

		}



		/* Alarm registers */

		data->alarms = dme1737_read(client,

		data->alarms = dme1737_read(data,

						DME1737_REG_ALARM1);

		/* Bit 7 tells us if the other alarm registers are non-zero and

		 * therefore also need to be read */

		if (data->alarms & 0x80) {

			data->alarms |= dme1737_read(client,

			data->alarms |= dme1737_read(data,

						DME1737_REG_ALARM2) << 8;

			data->alarms |= dme1737_read(client,

			data->alarms |= dme1737_read(data,

						DME1737_REG_ALARM3) << 16;

		}



		/* The ISA chips require explicit clearing of alarm bits.

		 * Don't worry, an alarm will come back if the condition

		 * that causes it still exists */

		if (!client->driver) {

		if (!data->client) {

			if (data->alarms & 0xff0000) {

				dme1737_write(client, DME1737_REG_ALARM3,

				dme1737_write(data, DME1737_REG_ALARM3,

					      0xff);

			}

			if (data->alarms & 0xff00) {

				dme1737_write(client, DME1737_REG_ALARM2,

				dme1737_write(data, DME1737_REG_ALARM2,

					      0xff);

			}

			if (data->alarms & 0xff) {

				dme1737_write(client, DME1737_REG_ALARM1,

				dme1737_write(data, DME1737_REG_ALARM1,

					      0xff);

			}

		}
@@ -770,7 +772,6 @@ static ssize_t set_in(struct device *dev, struct device_attribute *attr, 
		      const char *buf, size_t count)

{

	struct dme1737_data *data = dev_get_drvdata(dev);

	struct i2c_client *client = &data->client;

	struct sensor_device_attribute_2

		*sensor_attr_2 = to_sensor_dev_attr_2(attr);

	int ix = sensor_attr_2->index;
@@ -781,12 +782,12 @@ static ssize_t set_in(struct device *dev, struct device_attribute *attr, 
	switch (fn) {

	case SYS_IN_MIN:

		data->in_min[ix] = IN_TO_REG(val, data->in_nominal[ix]);

		dme1737_write(client, DME1737_REG_IN_MIN(ix),

		dme1737_write(data, DME1737_REG_IN_MIN(ix),

			      data->in_min[ix]);

		break;

	case SYS_IN_MAX:

		data->in_max[ix] = IN_TO_REG(val, data->in_nominal[ix]);

		dme1737_write(client, DME1737_REG_IN_MAX(ix),

		dme1737_write(data, DME1737_REG_IN_MAX(ix),

			      data->in_max[ix]);

		break;

	default:
@@ -850,7 +851,6 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *attr, 
			const char *buf, size_t count)

{

	struct dme1737_data *data = dev_get_drvdata(dev);

	struct i2c_client *client = &data->client;

	struct sensor_device_attribute_2

		*sensor_attr_2 = to_sensor_dev_attr_2(attr);

	int ix = sensor_attr_2->index;
@@ -861,17 +861,17 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *attr, 
	switch (fn) {

	case SYS_TEMP_MIN:

		data->temp_min[ix] = TEMP_TO_REG(val);

		dme1737_write(client, DME1737_REG_TEMP_MIN(ix),

		dme1737_write(data, DME1737_REG_TEMP_MIN(ix),

			      data->temp_min[ix]);

		break;

	case SYS_TEMP_MAX:

		data->temp_max[ix] = TEMP_TO_REG(val);

		dme1737_write(client, DME1737_REG_TEMP_MAX(ix),

		dme1737_write(data, DME1737_REG_TEMP_MAX(ix),

			      data->temp_max[ix]);

		break;

	case SYS_TEMP_OFFSET:

		data->temp_offset[ix] = TEMP_TO_REG(val);

		dme1737_write(client, DME1737_REG_TEMP_OFFSET(ix),

		dme1737_write(data, DME1737_REG_TEMP_OFFSET(ix),

			      data->temp_offset[ix]);

		break;

	default:
@@ -939,7 +939,6 @@ static ssize_t set_zone(struct device *dev, struct device_attribute *attr, 
			const char *buf, size_t count)

{

	struct dme1737_data *data = dev_get_drvdata(dev);

	struct i2c_client *client = &data->client;

	struct sensor_device_attribute_2

		*sensor_attr_2 = to_sensor_dev_attr_2(attr);

	int ix = sensor_attr_2->index;
@@ -950,37 +949,37 @@ static ssize_t set_zone(struct device *dev, struct device_attribute *attr, 
	switch (fn) {

	case SYS_ZONE_AUTO_POINT1_TEMP_HYST:

		/* Refresh the cache */

		data->zone_low[ix] = dme1737_read(client,

		data->zone_low[ix] = dme1737_read(data,

						  DME1737_REG_ZONE_LOW(ix));

		/* Modify the temp hyst value */

		data->zone_hyst[ix == 2] = TEMP_HYST_TO_REG(

					TEMP_FROM_REG(data->zone_low[ix], 8) -

					val, ix, dme1737_read(client,

					val, ix, dme1737_read(data,

					DME1737_REG_ZONE_HYST(ix == 2)));

		dme1737_write(client, DME1737_REG_ZONE_HYST(ix == 2),

		dme1737_write(data, DME1737_REG_ZONE_HYST(ix == 2),

			      data->zone_hyst[ix == 2]);

		break;

	case SYS_ZONE_AUTO_POINT1_TEMP:

		data->zone_low[ix] = TEMP_TO_REG(val);

		dme1737_write(client, DME1737_REG_ZONE_LOW(ix),

		dme1737_write(data, DME1737_REG_ZONE_LOW(ix),

			      data->zone_low[ix]);

		break;

	case SYS_ZONE_AUTO_POINT2_TEMP:

		/* Refresh the cache */

		data->zone_low[ix] = dme1737_read(client,

		data->zone_low[ix] = dme1737_read(data,

						  DME1737_REG_ZONE_LOW(ix));

		/* Modify the temp range value (which is stored in the upper

		 * nibble of the pwm_freq register) */

		data->pwm_freq[ix] = TEMP_RANGE_TO_REG(val -

					TEMP_FROM_REG(data->zone_low[ix], 8),

					dme1737_read(client,

					dme1737_read(data,

					DME1737_REG_PWM_FREQ(ix)));

		dme1737_write(client, DME1737_REG_PWM_FREQ(ix),

		dme1737_write(data, DME1737_REG_PWM_FREQ(ix),

			      data->pwm_freq[ix]);

		break;

	case SYS_ZONE_AUTO_POINT3_TEMP:

		data->zone_abs[ix] = TEMP_TO_REG(val);

		dme1737_write(client, DME1737_REG_ZONE_ABS(ix),

		dme1737_write(data, DME1737_REG_ZONE_ABS(ix),

			      data->zone_abs[ix]);

		break;

	default:
@@ -1046,7 +1045,6 @@ static ssize_t set_fan(struct device *dev, struct device_attribute *attr, 
		       const char *buf, size_t count)

{

	struct dme1737_data *data = dev_get_drvdata(dev);

	struct i2c_client *client = &data->client;

	struct sensor_device_attribute_2

		*sensor_attr_2 = to_sensor_dev_attr_2(attr);

	int ix = sensor_attr_2->index;
@@ -1060,21 +1058,21 @@ static ssize_t set_fan(struct device *dev, struct device_attribute *attr, 
			data->fan_min[ix] = FAN_TO_REG(val, 0);

		} else {

			/* Refresh the cache */

			data->fan_opt[ix] = dme1737_read(client,

			data->fan_opt[ix] = dme1737_read(data,

						DME1737_REG_FAN_OPT(ix));

			/* Modify the fan min value */

			data->fan_min[ix] = FAN_TO_REG(val,

					FAN_TPC_FROM_REG(data->fan_opt[ix]));

		}

		dme1737_write(client, DME1737_REG_FAN_MIN(ix),

		dme1737_write(data, DME1737_REG_FAN_MIN(ix),

			      data->fan_min[ix] & 0xff);

		dme1737_write(client, DME1737_REG_FAN_MIN(ix) + 1,

		dme1737_write(data, DME1737_REG_FAN_MIN(ix) + 1,

			      data->fan_min[ix] >> 8);

		break;

	case SYS_FAN_MAX:

		/* Only valid for fan[5-6] */

		data->fan_max[ix - 4] = FAN_MAX_TO_REG(val);

		dme1737_write(client, DME1737_REG_FAN_MAX(ix),

		dme1737_write(data, DME1737_REG_FAN_MAX(ix),

			      data->fan_max[ix - 4]);

		break;

	case SYS_FAN_TYPE:
@@ -1086,9 +1084,9 @@ static ssize_t set_fan(struct device *dev, struct device_attribute *attr, 
				 val);

			goto exit;

		}

		data->fan_opt[ix] = FAN_TYPE_TO_REG(val, dme1737_read(client,

		data->fan_opt[ix] = FAN_TYPE_TO_REG(val, dme1737_read(data,

					DME1737_REG_FAN_OPT(ix)));

		dme1737_write(client, DME1737_REG_FAN_OPT(ix),

		dme1737_write(data, DME1737_REG_FAN_OPT(ix),

			      data->fan_opt[ix]);

		break;

	default:
@@ -1185,7 +1183,6 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, 
		       const char *buf, size_t count)

{

	struct dme1737_data *data = dev_get_drvdata(dev);

	struct i2c_client *client = &data->client;

	struct sensor_device_attribute_2

		*sensor_attr_2 = to_sensor_dev_attr_2(attr);

	int ix = sensor_attr_2->index;
@@ -1196,12 +1193,12 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, 
	switch (fn) {

	case SYS_PWM:

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

		dme1737_write(client, DME1737_REG_PWM(ix), data->pwm[ix]);

		dme1737_write(data, DME1737_REG_PWM(ix), data->pwm[ix]);

		break;

	case SYS_PWM_FREQ:

		data->pwm_freq[ix] = PWM_FREQ_TO_REG(val, dme1737_read(client,

		data->pwm_freq[ix] = PWM_FREQ_TO_REG(val, dme1737_read(data,

						DME1737_REG_PWM_FREQ(ix)));

		dme1737_write(client, DME1737_REG_PWM_FREQ(ix),

		dme1737_write(data, DME1737_REG_PWM_FREQ(ix),

			      data->pwm_freq[ix]);

		break;

	case SYS_PWM_ENABLE:
@@ -1214,7 +1211,7 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, 
			goto exit;

		}

		/* Refresh the cache */

		data->pwm_config[ix] = dme1737_read(client,

		data->pwm_config[ix] = dme1737_read(data,

						DME1737_REG_PWM_CONFIG(ix));

		if (val == PWM_EN_FROM_REG(data->pwm_config[ix])) {

			/* Bail out if no change */
@@ -1226,14 +1223,14 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, 
			data->pwm_acz[ix] = PWM_ACZ_FROM_REG(

							data->pwm_config[ix]);

			/* Save the current ramp rate state and disable it */

			data->pwm_rr[ix > 0] = dme1737_read(client,

			data->pwm_rr[ix > 0] = dme1737_read(data,

						DME1737_REG_PWM_RR(ix > 0));

			data->pwm_rr_en &= ~(1 << ix);

			if (PWM_RR_EN_FROM_REG(data->pwm_rr[ix > 0], ix)) {

				data->pwm_rr_en |= (1 << ix);

				data->pwm_rr[ix > 0] = PWM_RR_EN_TO_REG(0, ix,

							data->pwm_rr[ix > 0]);

				dme1737_write(client,

				dme1737_write(data,

					      DME1737_REG_PWM_RR(ix > 0),

					      data->pwm_rr[ix > 0]);

			}
@@ -1247,14 +1244,14 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, 
			/* Turn fan fully on */

			data->pwm_config[ix] = PWM_EN_TO_REG(0,

							data->pwm_config[ix]);

			dme1737_write(client, DME1737_REG_PWM_CONFIG(ix),

			dme1737_write(data, DME1737_REG_PWM_CONFIG(ix),

				      data->pwm_config[ix]);

			break;

		case 1:

			/* Turn on manual mode */

			data->pwm_config[ix] = PWM_EN_TO_REG(1,

							data->pwm_config[ix]);

			dme1737_write(client, DME1737_REG_PWM_CONFIG(ix),

			dme1737_write(data, DME1737_REG_PWM_CONFIG(ix),

				      data->pwm_config[ix]);

			/* Change permissions of pwm[ix] to read-writeable */

			dme1737_chmod_file(dev, dme1737_pwm_chmod_attr[ix],
@@ -1269,14 +1266,14 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, 
			data->pwm_config[ix] = PWM_ACZ_TO_REG(

							data->pwm_acz[ix],

							data->pwm_config[ix]);

			dme1737_write(client, DME1737_REG_PWM_CONFIG(ix),

			dme1737_write(data, DME1737_REG_PWM_CONFIG(ix),

				      data->pwm_config[ix]);

			/* Enable PWM ramp rate if previously enabled */

			if (data->pwm_rr_en & (1 << ix)) {

				data->pwm_rr[ix > 0] = PWM_RR_EN_TO_REG(1, ix,

						dme1737_read(client,

						dme1737_read(data,

						DME1737_REG_PWM_RR(ix > 0)));

				dme1737_write(client,

				dme1737_write(data,

					      DME1737_REG_PWM_RR(ix > 0),

					      data->pwm_rr[ix > 0]);

			}
@@ -1286,9 +1283,9 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, 
	case SYS_PWM_RAMP_RATE:

		/* Only valid for pwm[1-3] */

		/* Refresh the cache */

		data->pwm_config[ix] = dme1737_read(client,

		data->pwm_config[ix] = dme1737_read(data,

						DME1737_REG_PWM_CONFIG(ix));

		data->pwm_rr[ix > 0] = dme1737_read(client,

		data->pwm_rr[ix > 0] = dme1737_read(data,

						DME1737_REG_PWM_RR(ix > 0));

		/* Set the ramp rate value */

		if (val > 0) {
@@ -1301,7 +1298,7 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, 
			data->pwm_rr[ix > 0] = PWM_RR_EN_TO_REG(val > 0, ix,

							data->pwm_rr[ix > 0]);

		}

		dme1737_write(client, DME1737_REG_PWM_RR(ix > 0),

		dme1737_write(data, DME1737_REG_PWM_RR(ix > 0),

			      data->pwm_rr[ix > 0]);

		break;

	case SYS_PWM_AUTO_CHANNELS_ZONE:
@@ -1315,14 +1312,14 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, 
			goto exit;

		}

		/* Refresh the cache */

		data->pwm_config[ix] = dme1737_read(client,

		data->pwm_config[ix] = dme1737_read(data,

						DME1737_REG_PWM_CONFIG(ix));

		if (PWM_EN_FROM_REG(data->pwm_config[ix]) == 2) {

			/* PWM is already in auto mode so update the temp

			 * channel assignment */

			data->pwm_config[ix] = PWM_ACZ_TO_REG(val,

						data->pwm_config[ix]);

			dme1737_write(client, DME1737_REG_PWM_CONFIG(ix),

			dme1737_write(data, DME1737_REG_PWM_CONFIG(ix),

				      data->pwm_config[ix]);

		} else {

			/* PWM is not in auto mode so we save the temp
@@ -1333,7 +1330,7 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, 
	case SYS_PWM_AUTO_PWM_MIN:

		/* Only valid for pwm[1-3] */

		/* Refresh the cache */

		data->pwm_min[ix] = dme1737_read(client,

		data->pwm_min[ix] = dme1737_read(data,

						DME1737_REG_PWM_MIN(ix));

		/* There are only 2 values supported for the auto_pwm_min

		 * value: 0 or auto_point1_pwm. So if the temperature drops
@@ -1341,20 +1338,20 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, 
		 * off or runs at auto_point1_pwm duty-cycle. */

		if (val > ((data->pwm_min[ix] + 1) / 2)) {

			data->pwm_rr[0] = PWM_OFF_TO_REG(1, ix,

						dme1737_read(client,

						dme1737_read(data,

						DME1737_REG_PWM_RR(0)));

		} else {

			data->pwm_rr[0] = PWM_OFF_TO_REG(0, ix,

						dme1737_read(client,

						dme1737_read(data,

						DME1737_REG_PWM_RR(0)));

		}

		dme1737_write(client, DME1737_REG_PWM_RR(0),

		dme1737_write(data, DME1737_REG_PWM_RR(0),

			      data->pwm_rr[0]);

		break;

	case SYS_PWM_AUTO_POINT1_PWM:

		/* Only valid for pwm[1-3] */

		data->pwm_min[ix] = SENSORS_LIMIT(val, 0, 255);

		dme1737_write(client, DME1737_REG_PWM_MIN(ix),

		dme1737_write(data, DME1737_REG_PWM_MIN(ix),

			      data->pwm_min[ix]);

		break;

	default:
@@ -1402,7 +1399,7 @@ static ssize_t show_name(struct device *dev, struct device_attribute *attr, 
{

	struct dme1737_data *data = dev_get_drvdata(dev);



	return sprintf(buf, "%s\n", data->client.name);

	return sprintf(buf, "%s\n", data->name);

}



/* ---------------------------------------------------------------------
@@ -1908,7 +1905,7 @@ static void dme1737_remove_files(struct device *dev) 


	sysfs_remove_group(&dev->kobj, &dme1737_group);



	if (!data->client.driver) {

	if (!data->client) {

		sysfs_remove_file(&dev->kobj, &dev_attr_name.attr);

	}

}
@@ -1919,7 +1916,7 @@ static int dme1737_create_files(struct device *dev) 
	int err, ix;



	/* Create a name attribute for ISA devices */

	if (!data->client.driver &&

	if (!data->client &&

	    (err = sysfs_create_file(&dev->kobj, &dev_attr_name.attr))) {

		goto exit;

	}
@@ -2013,14 +2010,14 @@ exit: 
static int dme1737_init_device(struct device *dev)

{

	struct dme1737_data *data = dev_get_drvdata(dev);

	struct i2c_client *client = &data->client;

	struct i2c_client *client = data->client;

	int ix;

	u8 reg;



	/* Point to the right nominal voltages array */

	data->in_nominal = IN_NOMINAL(data->type);



	data->config = dme1737_read(client, DME1737_REG_CONFIG);

	data->config = dme1737_read(data, DME1737_REG_CONFIG);

	/* Inform if part is not monitoring/started */

	if (!(data->config & 0x01)) {

		if (!force_start) {
@@ -2032,7 +2029,7 @@ static int dme1737_init_device(struct device *dev) 


		/* Force monitoring */

		data->config |= 0x01;

		dme1737_write(client, DME1737_REG_CONFIG, data->config);

		dme1737_write(data, DME1737_REG_CONFIG, data->config);

	}

	/* Inform if part is not ready */

	if (!(data->config & 0x04)) {
@@ -2041,8 +2038,8 @@ static int dme1737_init_device(struct device *dev) 
	}



	/* Determine which optional fan and pwm features are enabled/present */

	if (client->driver) {   /* I2C chip */

		data->config2 = dme1737_read(client, DME1737_REG_CONFIG2);

	if (client) {   /* I2C chip */

		data->config2 = dme1737_read(data, DME1737_REG_CONFIG2);

		/* Check if optional fan3 input is enabled */

		if (data->config2 & 0x04) {

			data->has_fan |= (1 << 2);
@@ -2051,7 +2048,7 @@ static int dme1737_init_device(struct device *dev) 
		/* Fan4 and pwm3 are only available if the client's I2C address

		 * is the default 0x2e. Otherwise the I/Os associated with

		 * these functions are used for addr enable/select. */

		if (data->client.addr == 0x2e) {

		if (client->addr == 0x2e) {

			data->has_fan |= (1 << 3);

			data->has_pwm |= (1 << 2);

		}
@@ -2086,16 +2083,16 @@ static int dme1737_init_device(struct device *dev) 
		 (data->has_fan & (1 << 4)) ? "yes" : "no",

		 (data->has_fan & (1 << 5)) ? "yes" : "no");



	reg = dme1737_read(client, DME1737_REG_TACH_PWM);

	reg = dme1737_read(data, DME1737_REG_TACH_PWM);

	/* Inform if fan-to-pwm mapping differs from the default */

	if (client->driver && reg != 0xa4) {   /* I2C chip */

	if (client && reg != 0xa4) {   /* I2C chip */

		dev_warn(dev, "Non-standard fan to pwm mapping: "

			 "fan1->pwm%d, fan2->pwm%d, fan3->pwm%d, "

			 "fan4->pwm%d. Please report to the driver "

			 "maintainer.\n",

			 (reg & 0x03) + 1, ((reg >> 2) & 0x03) + 1,

			 ((reg >> 4) & 0x03) + 1, ((reg >> 6) & 0x03) + 1);

	} else if (!client->driver && reg != 0x24) {   /* ISA chip */

	} else if (!client && reg != 0x24) {   /* ISA chip */

		dev_warn(dev, "Non-standard fan to pwm mapping: "

			 "fan1->pwm%d, fan2->pwm%d, fan3->pwm%d. "

			 "Please report to the driver maintainer.\n",
@@ -2108,7 +2105,7 @@ static int dme1737_init_device(struct device *dev) 
	 * disabled). */

	if (!(data->config & 0x02)) {

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

			data->pwm_config[ix] = dme1737_read(client,

			data->pwm_config[ix] = dme1737_read(data,

						DME1737_REG_PWM_CONFIG(ix));

			if ((data->has_pwm & (1 << ix)) &&

			    (PWM_EN_FROM_REG(data->pwm_config[ix]) == -1)) {
@@ -2116,8 +2113,8 @@ static int dme1737_init_device(struct device *dev) 
					 "manual mode.\n", ix + 1);

				data->pwm_config[ix] = PWM_EN_TO_REG(1,

							data->pwm_config[ix]);

				dme1737_write(client, DME1737_REG_PWM(ix), 0);

				dme1737_write(client,

				dme1737_write(data, DME1737_REG_PWM(ix), 0);

				dme1737_write(data,

					      DME1737_REG_PWM_CONFIG(ix),

					      data->pwm_config[ix]);

			}
@@ -2210,7 +2207,8 @@ static int dme1737_i2c_detect(struct i2c_adapter *adapter, int address, 
		goto exit;

	}



	client = &data->client;

	client = &data->_client;

	data->client = client;

	i2c_set_clientdata(client, data);

	client->addr = address;

	client->adapter = adapter;
@@ -2220,8 +2218,8 @@ static int dme1737_i2c_detect(struct i2c_adapter *adapter, int address, 
	/* A negative kind means that the driver was loaded with no force

	 * parameter (default), so we must identify the chip. */

	if (kind < 0) {

		company = dme1737_read(client, DME1737_REG_COMPANY);

		verstep = dme1737_read(client, DME1737_REG_VERSTEP);

		company = dme1737_read(data, DME1737_REG_COMPANY);

		verstep = dme1737_read(data, DME1737_REG_VERSTEP);



		if (company == DME1737_COMPANY_SMSC &&

		    (verstep & DME1737_VERSTEP_MASK) == DME1737_VERSTEP) {
@@ -2246,6 +2244,7 @@ static int dme1737_i2c_detect(struct i2c_adapter *adapter, int address, 
	/* Fill in the remaining client fields and put it into the global

	 * list */

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

	data->name = client->name;

	mutex_init(&data->update_lock);



	/* Tell the I2C layer a new client has arrived */
@@ -2403,7 +2402,6 @@ static int __devinit dme1737_isa_probe(struct platform_device *pdev) 
{

	u8 company, device;

	struct resource *res;

	struct i2c_client *client;

	struct dme1737_data *data;

	struct device *dev = &pdev->dev;

	int err;
@@ -2422,15 +2420,13 @@ static int __devinit dme1737_isa_probe(struct platform_device *pdev) 
		goto exit_release_region;

	}



	client = &data->client;

	i2c_set_clientdata(client, data);

	client->addr = res->start;

	data->addr = res->start;

	platform_set_drvdata(pdev, data);



	/* Skip chip detection if module is loaded with force_id parameter */

	if (!force_id) {

		company = dme1737_read(client, DME1737_REG_COMPANY);

		device = dme1737_read(client, DME1737_REG_DEVICE);

		company = dme1737_read(data, DME1737_REG_COMPANY);

		device = dme1737_read(data, DME1737_REG_DEVICE);



		if (!((company == DME1737_COMPANY_SMSC) &&

		      (device == SCH311X_DEVICE))) {
@@ -2441,10 +2437,10 @@ static int __devinit dme1737_isa_probe(struct platform_device *pdev) 
	data->type = sch311x;



	/* Fill in the remaining client fields and initialize the mutex */

	strlcpy(client->name, "sch311x", I2C_NAME_SIZE);

	data->name = "sch311x";

	mutex_init(&data->update_lock);



	dev_info(dev, "Found a SCH311x chip at 0x%04x\n", client->addr);

	dev_info(dev, "Found a SCH311x chip at 0x%04x\n", data->addr);



	/* Initialize the chip */

	if ((err = dme1737_init_device(dev))) {
@@ -2485,7 +2481,7 @@ static int __devexit dme1737_isa_remove(struct platform_device *pdev) 


	hwmon_device_unregister(data->hwmon_dev);

	dme1737_remove_files(&pdev->dev);

	release_region(data->client.addr, DME1737_EXTENT);

	release_region(data->addr, DME1737_EXTENT);

	platform_set_drvdata(pdev, NULL);

	kfree(data);

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