hwmon/w83627ehf: Convert to a platform driver

Remove i2c-isa from the w83627ehf driver, and use a platform driver
instead.

Signed-off-by: David Hubbard <david.c.hubbard@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>

1 files changed, 286 insertions, 222 deletions

diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index f4d850c7158..2157c3424de 100644
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -41,8 +41,8 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
-#include <linux/i2c.h>
-#include <linux/i2c-isa.h>
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
 #include <linux/hwmon.h>
 #include <linux/hwmon-sysfs.h>
 #include <linux/err.h>
@@ -50,25 +50,19 @@
 #include <asm/io.h>
 #include "lm75.h"
 
-/* The actual ISA address is read from Super-I/O configuration space */
-static unsigned short address;
+enum kinds { w83627ehf, w83627dhg };
 
-/*
- * Super-I/O constants and functions
- */
+/* used to set data->name = w83627ehf_device_names[data->sio_kind] */
+static const char * w83627ehf_device_names[] = {
+	"w83627ehf",
+	"w83627dhg",
+};
+
+#define DRVNAME "w83627ehf"
 
 /*
- * The three following globals are initialized in w83627ehf_find(), before
- * the i2c-isa device is created. Otherwise, they could be stored in
- * w83627ehf_data. This is ugly, but necessary, and when the driver is next
- * updated to become a platform driver, the globals will disappear.
+ * Super-I/O constants and functions
  */
-static int REG;		/* The register to read/write */
-static int VAL;		/* The value to read/write */
-/* The w83627ehf/ehg have 10 voltage inputs, but the w83627dhg has 9. This
- * value is also used in w83627ehf_detect() to export a device name in sysfs
- * (e.g. w83627ehf or w83627dhg) */
-static int w83627ehf_num_in;
 
 #define W83627EHF_LD_HWM	0x0b
 
@@ -83,38 +77,38 @@ static int w83627ehf_num_in;
 #define SIO_ID_MASK		0xFFF0
 
 static inline void
-superio_outb(int reg, int val)
+superio_outb(int ioreg, int reg, int val)
 {
-	outb(reg, REG);
-	outb(val, VAL);
+	outb(reg, ioreg);
+	outb(val, ioreg + 1);
 }
 
 static inline int
-superio_inb(int reg)
+superio_inb(int ioreg, int reg)
 {
-	outb(reg, REG);
-	return inb(VAL);
+	outb(reg, ioreg);
+	return inb(ioreg + 1);
 }
 
 static inline void
-superio_select(int ld)
+superio_select(int ioreg, int ld)
 {
-	outb(SIO_REG_LDSEL, REG);
-	outb(ld, VAL);
+	outb(SIO_REG_LDSEL, ioreg);
+	outb(ld, ioreg + 1);
 }
 
 static inline void
-superio_enter(void)
+superio_enter(int ioreg)
 {
-	outb(0x87, REG);
-	outb(0x87, REG);
+	outb(0x87, ioreg);
+	outb(0x87, ioreg);
 }
 
 static inline void
-superio_exit(void)
+superio_exit(int ioreg)
 {
-	outb(0x02, REG);
-	outb(0x02, VAL);
+	outb(0x02, ioreg);
+	outb(0x02, ioreg + 1);
 }
 
 /*
@@ -124,8 +118,8 @@ superio_exit(void)
 #define IOREGION_ALIGNMENT	~7
 #define IOREGION_OFFSET		5
 #define IOREGION_LENGTH		2
-#define ADDR_REG_OFFSET		5
-#define DATA_REG_OFFSET		6
+#define ADDR_REG_OFFSET		0
+#define DATA_REG_OFFSET		1
 
 #define W83627EHF_REG_BANK		0x4E
 #define W83627EHF_REG_CONFIG		0x40
@@ -255,7 +249,9 @@ static inline u8 in_to_reg(u32 val, u8 nr)
  */
 
 struct w83627ehf_data {
-	struct i2c_client client;
+	int addr;	/* IO base of hw monitor block */
+	const char *name;
+
 	struct class_device *class_dev;
 	struct mutex lock;
 
@@ -264,6 +260,7 @@ struct w83627ehf_data {
 	unsigned long last_updated;	/* In jiffies */
 
 	/* Register values */
+	u8 in_num;		/* number of in inputs we have */
 	u8 in[10];		/* Register value */
 	u8 in_max[10];		/* Register value */
 	u8 in_min[10];		/* Register value */
@@ -290,6 +287,11 @@ struct w83627ehf_data {
 	u8 fan_stop_time[4];
 };
 
+struct w83627ehf_sio_data {
+	int sioreg;
+	enum kinds kind;
+};
+
 static inline int is_word_sized(u16 reg)
 {
 	return (((reg & 0xff00) == 0x100
@@ -303,121 +305,117 @@ static inline int is_word_sized(u16 reg)
    nothing for registers which live in bank 0. For others, they respectively
    set the bank register to the correct value (before the register is
    accessed), and back to 0 (afterwards). */
-static inline void w83627ehf_set_bank(struct i2c_client *client, u16 reg)
+static inline void w83627ehf_set_bank(struct w83627ehf_data *data, u16 reg)
 {
 	if (reg & 0xff00) {
-		outb_p(W83627EHF_REG_BANK, client->addr + ADDR_REG_OFFSET);
-		outb_p(reg >> 8, client->addr + DATA_REG_OFFSET);
+		outb_p(W83627EHF_REG_BANK, data->addr + ADDR_REG_OFFSET);
+		outb_p(reg >> 8, data->addr + DATA_REG_OFFSET);
 	}
 }
 
-static inline void w83627ehf_reset_bank(struct i2c_client *client, u16 reg)
+static inline void w83627ehf_reset_bank(struct w83627ehf_data *data, u16 reg)
 {
 	if (reg & 0xff00) {
-		outb_p(W83627EHF_REG_BANK, client->addr + ADDR_REG_OFFSET);
-		outb_p(0, client->addr + DATA_REG_OFFSET);
+		outb_p(W83627EHF_REG_BANK, data->addr + ADDR_REG_OFFSET);
+		outb_p(0, data->addr + DATA_REG_OFFSET);
 	}
 }
 
-static u16 w83627ehf_read_value(struct i2c_client *client, u16 reg)
+static u16 w83627ehf_read_value(struct w83627ehf_data *data, u16 reg)
 {
-	struct w83627ehf_data *data = i2c_get_clientdata(client);
 	int res, word_sized = is_word_sized(reg);
 
 	mutex_lock(&data->lock);
 
-	w83627ehf_set_bank(client, reg);
-	outb_p(reg & 0xff, client->addr + ADDR_REG_OFFSET);
-	res = inb_p(client->addr + DATA_REG_OFFSET);
+	w83627ehf_set_bank(data, reg);
+	outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
+	res = inb_p(data->addr + DATA_REG_OFFSET);
 	if (word_sized) {
 		outb_p((reg & 0xff) + 1,
-		       client->addr + ADDR_REG_OFFSET);
-		res = (res << 8) + inb_p(client->addr + DATA_REG_OFFSET);
+		       data->addr + ADDR_REG_OFFSET);
+		res = (res << 8) + inb_p(data->addr + DATA_REG_OFFSET);
 	}
-	w83627ehf_reset_bank(client, reg);
+	w83627ehf_reset_bank(data, reg);
 
 	mutex_unlock(&data->lock);
 
 	return res;
 }
 
-static int w83627ehf_write_value(struct i2c_client *client, u16 reg, u16 value)
+static int w83627ehf_write_value(struct w83627ehf_data *data, u16 reg, u16 value)
 {
-	struct w83627ehf_data *data = i2c_get_clientdata(client);
 	int word_sized = is_word_sized(reg);
 
 	mutex_lock(&data->lock);
 
-	w83627ehf_set_bank(client, reg);
-	outb_p(reg & 0xff, client->addr + ADDR_REG_OFFSET);
+	w83627ehf_set_bank(data, reg);
+	outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
 	if (word_sized) {
-		outb_p(value >> 8, client->addr + DATA_REG_OFFSET);
+		outb_p(value >> 8, data->addr + DATA_REG_OFFSET);
 		outb_p((reg & 0xff) + 1,
-		       client->addr + ADDR_REG_OFFSET);
+		       data->addr + ADDR_REG_OFFSET);
 	}
-	outb_p(value & 0xff, client->addr + DATA_REG_OFFSET);
-	w83627ehf_reset_bank(client, reg);
+	outb_p(value & 0xff, data->addr + DATA_REG_OFFSET);
+	w83627ehf_reset_bank(data, reg);
 
 	mutex_unlock(&data->lock);
 	return 0;
 }
 
 /* This function assumes that the caller holds data->update_lock */
-static void w83627ehf_write_fan_div(struct i2c_client *client, int nr)
+static void w83627ehf_write_fan_div(struct w83627ehf_data *data, int nr)
 {
-	struct w83627ehf_data *data = i2c_get_clientdata(client);
 	u8 reg;
 
 	switch (nr) {
 	case 0:
-		reg = (w83627ehf_read_value(client, W83627EHF_REG_FANDIV1) & 0xcf)
+		reg = (w83627ehf_read_value(data, W83627EHF_REG_FANDIV1) & 0xcf)
 		    | ((data->fan_div[0] & 0x03) << 4);
 		/* fan5 input control bit is write only, compute the value */
 		reg |= (data->has_fan & (1 << 4)) ? 1 : 0;
-		w83627ehf_write_value(client, W83627EHF_REG_FANDIV1, reg);
-		reg = (w83627ehf_read_value(client, W83627EHF_REG_VBAT) & 0xdf)
+		w83627ehf_write_value(data, W83627EHF_REG_FANDIV1, reg);
+		reg = (w83627ehf_read_value(data, W83627EHF_REG_VBAT) & 0xdf)
 		    | ((data->fan_div[0] & 0x04) << 3);
-		w83627ehf_write_value(client, W83627EHF_REG_VBAT, reg);
+		w83627ehf_write_value(data, W83627EHF_REG_VBAT, reg);
 		break;
 	case 1:
-		reg = (w83627ehf_read_value(client, W83627EHF_REG_FANDIV1) & 0x3f)
+		reg = (w83627ehf_read_value(data, W83627EHF_REG_FANDIV1) & 0x3f)
 		    | ((data->fan_div[1] & 0x03) << 6);
 		/* fan5 input control bit is write only, compute the value */
 		reg |= (data->has_fan & (1 << 4)) ? 1 : 0;
-		w83627ehf_write_value(client, W83627EHF_REG_FANDIV1, reg);
-		reg = (w83627ehf_read_value(client, W83627EHF_REG_VBAT) & 0xbf)
+		w83627ehf_write_value(data, W83627EHF_REG_FANDIV1, reg);
+		reg = (w83627ehf_read_value(data, W83627EHF_REG_VBAT) & 0xbf)
 		    | ((data->fan_div[1] & 0x04) << 4);
-		w83627ehf_write_value(client, W83627EHF_REG_VBAT, reg);
+		w83627ehf_write_value(data, W83627EHF_REG_VBAT, reg);
 		break;
 	case 2:
-		reg = (w83627ehf_read_value(client, W83627EHF_REG_FANDIV2) & 0x3f)
+		reg = (w83627ehf_read_value(data, W83627EHF_REG_FANDIV2) & 0x3f)
 		    | ((data->fan_div[2] & 0x03) << 6);
-		w83627ehf_write_value(client, W83627EHF_REG_FANDIV2, reg);
-		reg = (w83627ehf_read_value(client, W83627EHF_REG_VBAT) & 0x7f)
+		w83627ehf_write_value(data, W83627EHF_REG_FANDIV2, reg);
+		reg = (w83627ehf_read_value(data, W83627EHF_REG_VBAT) & 0x7f)
 		    | ((data->fan_div[2] & 0x04) << 5);
-		w83627ehf_write_value(client, W83627EHF_REG_VBAT, reg);
+		w83627ehf_write_value(data, W83627EHF_REG_VBAT, reg);
 		break;
 	case 3:
-		reg = (w83627ehf_read_value(client, W83627EHF_REG_DIODE) & 0xfc)
+		reg = (w83627ehf_read_value(data, W83627EHF_REG_DIODE) & 0xfc)
 		    | (data->fan_div[3] & 0x03);
-		w83627ehf_write_value(client, W83627EHF_REG_DIODE, reg);
-		reg = (w83627ehf_read_value(client, W83627EHF_REG_SMI_OVT) & 0x7f)
+		w83627ehf_write_value(data, W83627EHF_REG_DIODE, reg);
+		reg = (w83627ehf_read_value(data, W83627EHF_REG_SMI_OVT) & 0x7f)
 		    | ((data->fan_div[3] & 0x04) << 5);
-		w83627ehf_write_value(client, W83627EHF_REG_SMI_OVT, reg);
+		w83627ehf_write_value(data, W83627EHF_REG_SMI_OVT, reg);
 		break;
 	case 4:
-		reg = (w83627ehf_read_value(client, W83627EHF_REG_DIODE) & 0x73)
+		reg = (w83627ehf_read_value(data, W83627EHF_REG_DIODE) & 0x73)
 		    | ((data->fan_div[4] & 0x03) << 2)
 		    | ((data->fan_div[4] & 0x04) << 5);
-		w83627ehf_write_value(client, W83627EHF_REG_DIODE, reg);
+		w83627ehf_write_value(data, W83627EHF_REG_DIODE, reg);
 		break;
 	}
 }
 
 static struct w83627ehf_data *w83627ehf_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct w83627ehf_data *data = i2c_get_clientdata(client);
+	struct w83627ehf_data *data = dev_get_drvdata(dev);
 	int pwmcfg = 0, tolerance = 0; /* shut up the compiler */
 	int i;
 
@@ -426,33 +424,33 @@ static struct w83627ehf_data *w83627ehf_update_device(struct device *dev)
 	if (time_after(jiffies, data->last_updated + HZ)
 	 || !data->valid) {
 		/* Fan clock dividers */
-		i = w83627ehf_read_value(client, W83627EHF_REG_FANDIV1);
+		i = w83627ehf_read_value(data, W83627EHF_REG_FANDIV1);
 		data->fan_div[0] = (i >> 4) & 0x03;
 		data->fan_div[1] = (i >> 6) & 0x03;
-		i = w83627ehf_read_value(client, W83627EHF_REG_FANDIV2);
+		i = w83627ehf_read_value(data, W83627EHF_REG_FANDIV2);
 		data->fan_div[2] = (i >> 6) & 0x03;
-		i = w83627ehf_read_value(client, W83627EHF_REG_VBAT);
+		i = w83627ehf_read_value(data, W83627EHF_REG_VBAT);
 		data->fan_div[0] |= (i >> 3) & 0x04;
 		data->fan_div[1] |= (i >> 4) & 0x04;
 		data->fan_div[2] |= (i >> 5) & 0x04;
 		if (data->has_fan & ((1 << 3) | (1 << 4))) {
-			i = w83627ehf_read_value(client, W83627EHF_REG_DIODE);
+			i = w83627ehf_read_value(data, W83627EHF_REG_DIODE);
 			data->fan_div[3] = i & 0x03;
 			data->fan_div[4] = ((i >> 2) & 0x03)
 					 | ((i >> 5) & 0x04);
 		}
 		if (data->has_fan & (1 << 3)) {
-			i = w83627ehf_read_value(client, W83627EHF_REG_SMI_OVT);
+			i = w83627ehf_read_value(data, W83627EHF_REG_SMI_OVT);
 			data->fan_div[3] |= (i >> 5) & 0x04;
 		}
 
 		/* Measured voltages and limits */
-		for (i = 0; i < w83627ehf_num_in; i++) {
-			data->in[i] = w83627ehf_read_value(client,
+		for (i = 0; i < data->in_num; i++) {
+			data->in[i] = w83627ehf_read_value(data,
 				      W83627EHF_REG_IN(i));
-			data->in_min[i] = w83627ehf_read_value(client,
+			data->in_min[i] = w83627ehf_read_value(data,
 					  W83627EHF_REG_IN_MIN(i));
-			data->in_max[i] = w83627ehf_read_value(client,
+			data->in_max[i] = w83627ehf_read_value(data,
 					  W83627EHF_REG_IN_MAX(i));
 		}
 
@@ -461,9 +459,9 @@ static struct w83627ehf_data *w83627ehf_update_device(struct device *dev)
 			if (!(data->has_fan & (1 << i)))
 				continue;
 
-			data->fan[i] = w83627ehf_read_value(client,
+			data->fan[i] = w83627ehf_read_value(data,
 				       W83627EHF_REG_FAN[i]);
-			data->fan_min[i] = w83627ehf_read_value(client,
+			data->fan_min[i] = w83627ehf_read_value(data,
 					   W83627EHF_REG_FAN_MIN[i]);
 
 			/* If we failed to measure the fan speed and clock
@@ -471,16 +469,16 @@ static struct w83627ehf_data *w83627ehf_update_device(struct device *dev)
 			   time */
 			if (data->fan[i] == 0xff
 			 && data->fan_div[i] < 0x07) {
-			 	dev_dbg(&client->dev, "Increasing fan%d "
+			 	dev_dbg(dev, "Increasing fan%d "
 					"clock divider from %u to %u\n",
 					i + 1, div_from_reg(data->fan_div[i]),
 					div_from_reg(data->fan_div[i] + 1));
 				data->fan_div[i]++;
-				w83627ehf_write_fan_div(client, i);
+				w83627ehf_write_fan_div(data, i);
 				/* Preserve min limit if possible */
 				if (data->fan_min[i] >= 2
 				 && data->fan_min[i] != 255)
-					w83627ehf_write_value(client,
+					w83627ehf_write_value(data,
 						W83627EHF_REG_FAN_MIN[i],
 						(data->fan_min[i] /= 2));
 			}
@@ -489,9 +487,9 @@ static struct w83627ehf_data *w83627ehf_update_device(struct device *dev)
 		for (i = 0; i < 4; i++) {
 			/* pwmcfg, tolarance mapped for i=0, i=1 to same reg */
 			if (i != 1) {
-				pwmcfg = w83627ehf_read_value(client,
+				pwmcfg = w83627ehf_read_value(data,
 						W83627EHF_REG_PWM_ENABLE[i]);
-				tolerance = w83627ehf_read_value(client,
+				tolerance = w83627ehf_read_value(data,
 						W83627EHF_REG_TOLERANCE[i]);
 			}
 			data->pwm_mode[i] =
@@ -500,14 +498,14 @@ static struct w83627ehf_data *w83627ehf_update_device(struct device *dev)
 			data->pwm_enable[i] =
 					((pwmcfg >> W83627EHF_PWM_ENABLE_SHIFT[i])
 						& 3) + 1;
-			data->pwm[i] = w83627ehf_read_value(client,
+			data->pwm[i] = w83627ehf_read_value(data,
 						W83627EHF_REG_PWM[i]);
-			data->fan_min_output[i] = w83627ehf_read_value(client,
+			data->fan_min_output[i] = w83627ehf_read_value(data,
 						W83627EHF_REG_FAN_MIN_OUTPUT[i]);
-			data->fan_stop_time[i] = w83627ehf_read_value(client,
+			data->fan_stop_time[i] = w83627ehf_read_value(data,
 						W83627EHF_REG_FAN_STOP_TIME[i]);
 			data->target_temp[i] =
-				w83627ehf_read_value(client,
+				w83627ehf_read_value(data,
 					W83627EHF_REG_TARGET[i]) &
 					(data->pwm_mode[i] == 1 ? 0x7f : 0xff);
 			data->tolerance[i] = (tolerance >> (i == 1 ? 4 : 0))
@@ -515,26 +513,26 @@ static struct w83627ehf_data *w83627ehf_update_device(struct device *dev)
 		}
 
 		/* Measured temperatures and limits */
-		data->temp1 = w83627ehf_read_value(client,
+		data->temp1 = w83627ehf_read_value(data,
 			      W83627EHF_REG_TEMP1);
-		data->temp1_max = w83627ehf_read_value(client,
+		data->temp1_max = w83627ehf_read_value(data,
 				  W83627EHF_REG_TEMP1_OVER);
-		data->temp1_max_hyst = w83627ehf_read_value(client,
+		data->temp1_max_hyst = w83627ehf_read_value(data,
 				       W83627EHF_REG_TEMP1_HYST);
 		for (i = 0; i < 2; i++) {
-			data->temp[i] = w83627ehf_read_value(client,
+			data->temp[i] = w83627ehf_read_value(data,
 					W83627EHF_REG_TEMP[i]);
-			data->temp_max[i] = w83627ehf_read_value(client,
+			data->temp_max[i] = w83627ehf_read_value(data,
 					    W83627EHF_REG_TEMP_OVER[i]);
-			data->temp_max_hyst[i] = w83627ehf_read_value(client,
+			data->temp_max_hyst[i] = w83627ehf_read_value(data,
 						 W83627EHF_REG_TEMP_HYST[i]);
 		}
 
-		data->alarms = w83627ehf_read_value(client,
+		data->alarms = w83627ehf_read_value(data,
 					W83627EHF_REG_ALARM1) |
-			       (w83627ehf_read_value(client,
+			       (w83627ehf_read_value(data,
 					W83627EHF_REG_ALARM2) << 8) |
-			       (w83627ehf_read_value(client,
+			       (w83627ehf_read_value(data,
 					W83627EHF_REG_ALARM3) << 16);
 
 		data->last_updated = jiffies;
@@ -567,15 +565,14 @@ static ssize_t \
 store_in_##reg (struct device *dev, struct device_attribute *attr, \
 			const char *buf, size_t count) \
 { \
-	struct i2c_client *client = to_i2c_client(dev); \
-	struct w83627ehf_data *data = i2c_get_clientdata(client); \
+	struct w83627ehf_data *data = dev_get_drvdata(dev); \
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
 	int nr = sensor_attr->index; \
 	u32 val = simple_strtoul(buf, NULL, 10); \
  \
 	mutex_lock(&data->update_lock); \
 	data->in_##reg[nr] = in_to_reg(val, nr); \
-	w83627ehf_write_value(client, W83627EHF_REG_IN_##REG(nr), \
+	w83627ehf_write_value(data, W83627EHF_REG_IN_##REG(nr), \
 			      data->in_##reg[nr]); \
 	mutex_unlock(&data->update_lock); \
 	return count; \
@@ -673,8 +670,7 @@ static ssize_t
 store_fan_min(struct device *dev, struct device_attribute *attr,
 	      const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct w83627ehf_data *data = i2c_get_clientdata(client);
+	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 int val = simple_strtoul(buf, NULL, 10);
@@ -730,9 +726,9 @@ store_fan_min(struct device *dev, struct device_attribute *attr,
 			nr + 1, div_from_reg(data->fan_div[nr]),
 			div_from_reg(new_div));
 		data->fan_div[nr] = new_div;
-		w83627ehf_write_fan_div(client, nr);
+		w83627ehf_write_fan_div(data, nr);
 	}
-	w83627ehf_write_value(client, W83627EHF_REG_FAN_MIN[nr],
+	w83627ehf_write_value(data, W83627EHF_REG_FAN_MIN[nr],
 			      data->fan_min[nr]);
 	mutex_unlock(&data->update_lock);
 
@@ -793,13 +789,12 @@ static ssize_t \
 store_temp1_##reg(struct device *dev, struct device_attribute *attr, \
 		  const char *buf, size_t count) \
 { \
-	struct i2c_client *client = to_i2c_client(dev); \
-	struct w83627ehf_data *data = i2c_get_clientdata(client); \
+	struct w83627ehf_data *data = dev_get_drvdata(dev); \
 	u32 val = simple_strtoul(buf, NULL, 10); \
  \
 	mutex_lock(&data->update_lock); \
 	data->temp1_##reg = temp1_to_reg(val, -128000, 127000); \
-	w83627ehf_write_value(client, W83627EHF_REG_TEMP1_##REG, \
+	w83627ehf_write_value(data, W83627EHF_REG_TEMP1_##REG, \
 			      data->temp1_##reg); \
 	mutex_unlock(&data->update_lock); \
 	return count; \
@@ -827,15 +822,14 @@ static ssize_t \
 store_##reg(struct device *dev, struct device_attribute *attr, \
 	    const char *buf, size_t count) \
 { \
-	struct i2c_client *client = to_i2c_client(dev); \
-	struct w83627ehf_data *data = i2c_get_clientdata(client); \
+	struct w83627ehf_data *data = dev_get_drvdata(dev); \
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
 	int nr = sensor_attr->index; \
 	u32 val = simple_strtoul(buf, NULL, 10); \
  \
 	mutex_lock(&data->update_lock); \
 	data->reg[nr] = LM75_TEMP_TO_REG(val); \
-	w83627ehf_write_value(client, W83627EHF_REG_TEMP_##REG[nr], \
+	w83627ehf_write_value(data, W83627EHF_REG_TEMP_##REG[nr], \
 			      data->reg[nr]); \
 	mutex_unlock(&data->update_lock); \
 	return count; \
@@ -882,8 +876,7 @@ static ssize_t
 store_pwm_mode(struct device *dev, struct device_attribute *attr,
 			const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct w83627ehf_data *data = i2c_get_clientdata(client);
+	struct w83627ehf_data *data = dev_get_drvdata(dev);
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	u32 val = simple_strtoul(buf, NULL, 10);
@@ -892,12 +885,12 @@ store_pwm_mode(struct device *dev, struct device_attribute *attr,
 	if (val > 1)
 		return -EINVAL;
 	mutex_lock(&data->update_lock);
-	reg = w83627ehf_read_value(client, W83627EHF_REG_PWM_ENABLE[nr]);
+	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(client, W83627EHF_REG_PWM_ENABLE[nr], reg);
+	w83627ehf_write_value(data, W83627EHF_REG_PWM_ENABLE[nr], reg);
 	mutex_unlock(&data->update_lock);
 	return count;
 }
@@ -906,15 +899,14 @@ static ssize_t
 store_pwm(struct device *dev, struct device_attribute *attr,
 			const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct w83627ehf_data *data = i2c_get_clientdata(client);
+	struct w83627ehf_data *data = dev_get_drvdata(dev);
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	u32 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 255);
 
 	mutex_lock(&data->update_lock);
 	data->pwm[nr] = val;
-	w83627ehf_write_value(client, W83627EHF_REG_PWM[nr], val);
+	w83627ehf_write_value(data, W83627EHF_REG_PWM[nr], val);
 	mutex_unlock(&data->update_lock);
 	return count;
 }
@@ -923,8 +915,7 @@ static ssize_t
 store_pwm_enable(struct device *dev, struct device_attribute *attr,
 			const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct w83627ehf_data *data = i2c_get_clientdata(client);
+	struct w83627ehf_data *data = dev_get_drvdata(dev);
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	u32 val = simple_strtoul(buf, NULL, 10);
@@ -933,11 +924,11 @@ store_pwm_enable(struct device *dev, struct device_attribute *attr,
 	if (!val || (val > 2))	/* only modes 1 and 2 are supported */
 		return -EINVAL;
 	mutex_lock(&data->update_lock);
-	reg = w83627ehf_read_value(client, W83627EHF_REG_PWM_ENABLE[nr]);
+	reg = w83627ehf_read_value(data, W83627EHF_REG_PWM_ENABLE[nr]);
 	data->pwm_enable[nr] = val;
 	reg &= ~(0x03 << W83627EHF_PWM_ENABLE_SHIFT[nr]);
 	reg |= (val - 1) << W83627EHF_PWM_ENABLE_SHIFT[nr];
-	w83627ehf_write_value(client, W83627EHF_REG_PWM_ENABLE[nr], reg);
+	w83627ehf_write_value(data, W83627EHF_REG_PWM_ENABLE[nr], reg);
 	mutex_unlock(&data->update_lock);
 	return count;
 }
@@ -960,15 +951,14 @@ static ssize_t
 store_target_temp(struct device *dev, struct device_attribute *attr,
 			const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct w83627ehf_data *data = i2c_get_clientdata(client);
+	struct w83627ehf_data *data = dev_get_drvdata(dev);
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	u8 val = temp1_to_reg(simple_strtoul(buf, NULL, 10), 0, 127000);
 
 	mutex_lock(&data->update_lock);
 	data->target_temp[nr] = val;
-	w83627ehf_write_value(client, W83627EHF_REG_TARGET[nr], val);
+	w83627ehf_write_value(data, W83627EHF_REG_TARGET[nr], val);
 	mutex_unlock(&data->update_lock);
 	return count;
 }
@@ -977,8 +967,7 @@ static ssize_t
 store_tolerance(struct device *dev, struct device_attribute *attr,
 			const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct w83627ehf_data *data = i2c_get_clientdata(client);
+	struct w83627ehf_data *data = dev_get_drvdata(dev);
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	u16 reg;
@@ -986,13 +975,13 @@ store_tolerance(struct device *dev, struct device_attribute *attr,
 	u8 val = temp1_to_reg(simple_strtoul(buf, NULL, 10), 0, 15000);
 
 	mutex_lock(&data->update_lock);
-	reg = w83627ehf_read_value(client, W83627EHF_REG_TOLERANCE[nr]);
+	reg = w83627ehf_read_value(data, W83627EHF_REG_TOLERANCE[nr]);
 	data->tolerance[nr] = val;
 	if (nr == 1)
 		reg = (reg & 0x0f) | (val << 4);
 	else
 		reg = (reg & 0xf0) | val;
-	w83627ehf_write_value(client, W83627EHF_REG_TOLERANCE[nr], reg);
+	w83627ehf_write_value(data, W83627EHF_REG_TOLERANCE[nr], reg);
 	mutex_unlock(&data->update_lock);
 	return count;
 }
@@ -1063,14 +1052,13 @@ static ssize_t \
 store_##reg(struct device *dev, struct device_attribute *attr, \
 			    const char *buf, size_t count) \
 {\
-	struct i2c_client *client = to_i2c_client(dev); \
-	struct w83627ehf_data *data = i2c_get_clientdata(client); \
+	struct w83627ehf_data *data = dev_get_drvdata(dev); \
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
 	int nr = sensor_attr->index; \
 	u32 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 1, 255); \
 	mutex_lock(&data->update_lock); \
 	data->reg[nr] = val; \
-	w83627ehf_write_value(client, W83627EHF_REG_##REG[nr],  val); \
+	w83627ehf_write_value(data, W83627EHF_REG_##REG[nr], val); \
 	mutex_unlock(&data->update_lock); \
 	return count; \
 }
@@ -1092,21 +1080,28 @@ static ssize_t \
 store_##reg(struct device *dev, struct device_attribute *attr, \
 			const char *buf, size_t count) \
 { \
-	struct i2c_client *client = to_i2c_client(dev); \
-	struct w83627ehf_data *data = i2c_get_clientdata(client); \
+	struct w83627ehf_data *data = dev_get_drvdata(dev); \
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
 	int nr = sensor_attr->index; \
 	u8 val = step_time_to_reg(simple_strtoul(buf, NULL, 10), \
 					data->pwm_mode[nr]); \
 	mutex_lock(&data->update_lock); \
 	data->reg[nr] = val; \
-	w83627ehf_write_value(client, W83627EHF_REG_##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,
@@ -1131,7 +1126,7 @@ static struct sensor_device_attribute sda_sf3_arrays[] = {
 };
 
 /*
- * Driver and client management
+ * Driver and device management
  */
 
 static void w83627ehf_device_remove_files(struct device *dev)
@@ -1139,12 +1134,13 @@ 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_arrays_fan4); i++)
 		device_remove_file(dev, &sda_sf3_arrays_fan4[i].dev_attr);
-	for (i = 0; i < w83627ehf_num_in; i++) {
+	for (i = 0; i < data->in_num; i++) {
 		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);
@@ -1165,43 +1161,48 @@ static void w83627ehf_device_remove_files(struct device *dev)
 	}
 	for (i = 0; i < ARRAY_SIZE(sda_temp); i++)
 		device_remove_file(dev, &sda_temp[i].dev_attr);
-}
 
-static struct i2c_driver w83627ehf_driver;
+	device_remove_file(dev, &dev_attr_name);
+}
 
-static void w83627ehf_init_client(struct i2c_client *client)
+/* Get the monitoring functions started */
+static inline void __devinit w83627ehf_init_device(struct w83627ehf_data *data)
 {
 	int i;
 	u8 tmp;
 
 	/* Start monitoring is needed */
-	tmp = w83627ehf_read_value(client, W83627EHF_REG_CONFIG);
+	tmp = w83627ehf_read_value(data, W83627EHF_REG_CONFIG);
 	if (!(tmp & 0x01))
-		w83627ehf_write_value(client, W83627EHF_REG_CONFIG,
+		w83627ehf_write_value(data, W83627EHF_REG_CONFIG,
 				      tmp | 0x01);
 
 	/* Enable temp2 and temp3 if needed */
 	for (i = 0; i < 2; i++) {
-		tmp = w83627ehf_read_value(client,
+		tmp = w83627ehf_read_value(data,
 					   W83627EHF_REG_TEMP_CONFIG[i]);
 		if (tmp & 0x01)
-			w83627ehf_write_value(client,
+			w83627ehf_write_value(data,
 					      W83627EHF_REG_TEMP_CONFIG[i],
 					      tmp & 0xfe);
 	}
 }
 
-static int w83627ehf_detect(struct i2c_adapter *adapter)
+static int __devinit w83627ehf_probe(struct platform_device *pdev)
 {
-	struct i2c_client *client;
+	struct device *dev = &pdev->dev;
+	struct w83627ehf_sio_data *sio_data = dev->platform_data;
 	struct w83627ehf_data *data;
-	struct device *dev;
+	struct resource *res;
 	u8 fan4pin, fan5pin;
 	int i, err = 0;
 
-	if (!request_region(address + IOREGION_OFFSET, IOREGION_LENGTH,
-	                    w83627ehf_driver.driver.name)) {
+	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;
 	}
 
@@ -1210,41 +1211,29 @@ static int w83627ehf_detect(struct i2c_adapter *adapter)
 		goto exit_release;
 	}
 
-	client = &data->client;
-	i2c_set_clientdata(client, data);
-	client->addr = address;
+	data->addr = res->start;
 	mutex_init(&data->lock);
-	client->adapter = adapter;
-	client->driver = &w83627ehf_driver;
-	client->flags = 0;
-	dev = &client->dev;
-
-	if (w83627ehf_num_in == 9)
-		strlcpy(client->name, "w83627dhg", I2C_NAME_SIZE);
-	else	/* just say ehf. 627EHG is 627EHF in lead-free packaging. */
-		strlcpy(client->name, "w83627ehf", I2C_NAME_SIZE);
-
-	data->valid = 0;
 	mutex_init(&data->update_lock);
+	data->name = w83627ehf_device_names[sio_data->kind];
+	platform_set_drvdata(pdev, data);
 
-	/* Tell the i2c layer a new client has arrived */
-	if ((err = i2c_attach_client(client)))
-		goto exit_free;
+	/* 627EHG and 627EHF have 10 voltage inputs; DHG has 9 */
+	data->in_num = (sio_data->kind == w83627dhg) ? 9 : 10;
 
 	/* Initialize the chip */
-	w83627ehf_init_client(client);
+	w83627ehf_init_device(data);
 
 	/* A few vars need to be filled upon startup */
 	for (i = 0; i < 5; i++)
-		data->fan_min[i] = w83627ehf_read_value(client,
+		data->fan_min[i] = w83627ehf_read_value(data,
 				   W83627EHF_REG_FAN_MIN[i]);
 
 	/* fan4 and fan5 share some pins with the GPIO and serial flash */
 
-	superio_enter();
-	fan5pin = superio_inb(0x24) & 0x2;
-	fan4pin = superio_inb(0x29) & 0x6;
-	superio_exit();
+	superio_enter(sio_data->sioreg);
+	fan5pin = superio_inb(sio_data->sioreg, 0x24) & 0x2;
+	fan4pin = superio_inb(sio_data->sioreg, 0x29) & 0x6;
+	superio_exit(sio_data->sioreg);
 
 	/* It looks like fan4 and fan5 pins can be alternatively used
 	   as fan on/off switches, but fan5 control is write only :/
@@ -1253,7 +1242,7 @@ static int w83627ehf_detect(struct i2c_adapter *adapter)
 	   is not the default. */
 
 	data->has_fan = 0x07; /* fan1, fan2 and fan3 */
-	i = w83627ehf_read_value(client, W83627EHF_REG_FANDIV1);
+	i = w83627ehf_read_value(data, W83627EHF_REG_FANDIV1);
 	if ((i & (1 << 2)) && (!fan4pin))
 		data->has_fan |= (1 << 3);
 	if (!(i & (1 << 1)) && (!fan5pin))
@@ -1273,7 +1262,7 @@ static int w83627ehf_detect(struct i2c_adapter *adapter)
 				goto exit_remove;
 		}
 
-	for (i = 0; i < w83627ehf_num_in; i++)
+	for (i = 0; i < data->in_num; i++)
 		if ((err = device_create_file(dev, &sda_in_input[i].dev_attr))
 			|| (err = device_create_file(dev,
 				&sda_in_alarm[i].dev_attr))
@@ -1313,6 +1302,10 @@ static int w83627ehf_detect(struct i2c_adapter *adapter)
 		if ((err = device_create_file(dev, &sda_temp[i].dev_attr)))
 			goto exit_remove;
 
+	err = device_create_file(dev, &dev_attr_name);
+	if (err)
+		goto exit_remove;
+
 	data->class_dev = hwmon_device_register(dev);
 	if (IS_ERR(data->class_dev)) {
 		err = PTR_ERR(data->class_dev);
@@ -1323,95 +1316,166 @@ static int w83627ehf_detect(struct i2c_adapter *adapter)
 
 exit_remove:
 	w83627ehf_device_remove_files(dev);
-	i2c_detach_client(client);
-exit_free:
 	kfree(data);
+	platform_set_drvdata(pdev, NULL);
 exit_release:
-	release_region(address + IOREGION_OFFSET, IOREGION_LENGTH);
+	release_region(res->start, IOREGION_LENGTH);
 exit:
 	return err;
 }
 
-static int w83627ehf_detach_client(struct i2c_client *client)
+static int __devexit w83627ehf_remove(struct platform_device *pdev)
 {
-	struct w83627ehf_data *data = i2c_get_clientdata(client);
-	int err;
+	struct w83627ehf_data *data = platform_get_drvdata(pdev);
 
 	hwmon_device_unregister(data->class_dev);
-	w83627ehf_device_remove_files(&client->dev);
-
-	if ((err = i2c_detach_client(client)))
-		return err;
-	release_region(client->addr + IOREGION_OFFSET, IOREGION_LENGTH);
+	w83627ehf_device_remove_files(&pdev->dev);
+	release_region(data->addr, IOREGION_LENGTH);
+	platform_set_drvdata(pdev, NULL);
 	kfree(data);
 
 	return 0;
 }
 
-static struct i2c_driver w83627ehf_driver = {
+static struct platform_driver w83627ehf_driver = {
 	.driver = {
 		.owner	= THIS_MODULE,
-		.name	= "w83627ehf",
+		.name	= DRVNAME,
 	},
-	.attach_adapter	= w83627ehf_detect,
-	.detach_client	= w83627ehf_detach_client,
+	.probe		= w83627ehf_probe,
+	.remove		= __devexit_p(w83627ehf_remove),
 };
 
-static int __init w83627ehf_find(int sioaddr, unsigned short *addr)
+/* w83627ehf_find() looks for a '627 in the Super-I/O config space */
+static int __init w83627ehf_find(int sioaddr, unsigned short *addr,
+				 struct w83627ehf_sio_data *sio_data)
 {
+	static const char __initdata sio_name_W83627EHF[] = "W83627EHF";
+	static const char __initdata sio_name_W83627EHG[] = "W83627EHG";
+	static const char __initdata sio_name_W83627DHG[] = "W83627DHG";
+
 	u16 val;
+	const char *sio_name;
 
-	REG = sioaddr;
-	VAL = sioaddr + 1;
-	superio_enter();
+	superio_enter(sioaddr);
 
-	val = (superio_inb(SIO_REG_DEVID) << 8)
-	    | superio_inb(SIO_REG_DEVID + 1);
+	val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8)
+	    | superio_inb(sioaddr, SIO_REG_DEVID + 1);
 	switch (val & SIO_ID_MASK) {
-	case SIO_W83627DHG_ID:
-		w83627ehf_num_in = 9;
-		break;
 	case SIO_W83627EHF_ID:
+		sio_data->kind = w83627ehf;
+		sio_name = sio_name_W83627EHF;
+		break;
 	case SIO_W83627EHG_ID:
-		w83627ehf_num_in = 10;
+		sio_data->kind = w83627ehf;
+		sio_name = sio_name_W83627EHG;
+		break;
+	case SIO_W83627DHG_ID:
+		sio_data->kind = w83627dhg;
+		sio_name = sio_name_W83627DHG;
 		break;
 	default:
-		printk(KERN_WARNING "w83627ehf: unsupported chip ID: 0x%04x\n",
+		pr_info(DRVNAME ": unsupported chip ID: 0x%04x\n",
 			val);
-		superio_exit();
+		superio_exit(sioaddr);
 		return -ENODEV;
 	}
 
-	superio_select(W83627EHF_LD_HWM);
-	val = (superio_inb(SIO_REG_ADDR) << 8)
-	    | superio_inb(SIO_REG_ADDR + 1);
+	/* We have a known chip, find the HWM I/O address */
+	superio_select(sioaddr, W83627EHF_LD_HWM);
+	val = (superio_inb(sioaddr, SIO_REG_ADDR) << 8)
+	    | superio_inb(sioaddr, SIO_REG_ADDR + 1);
 	*addr = val & IOREGION_ALIGNMENT;
 	if (*addr == 0) {
-		superio_exit();
+		superio_exit(sioaddr);
 		return -ENODEV;
 	}
 
 	/* Activate logical device if needed */
-	val = superio_inb(SIO_REG_ENABLE);
+	val = superio_inb(sioaddr, SIO_REG_ENABLE);
 	if (!(val & 0x01))
-		superio_outb(SIO_REG_ENABLE, val | 0x01);
+		superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01);
+
+	superio_exit(sioaddr);
+	pr_info(DRVNAME ": Found %s chip at %#x\n", sio_name, *addr);
+	sio_data->sioreg = sioaddr;
 
-	superio_exit();
 	return 0;
 }
 
+/* when Super-I/O functions move to a separate file, the Super-I/O
+ * bus will manage the lifetime of the device and this module will only keep
+ * track of the w83627ehf driver. But since we platform_device_alloc(), we
+ * must keep track of the device */
+static struct platform_device *pdev;
+
 static int __init sensors_w83627ehf_init(void)
 {
-	if (w83627ehf_find(0x2e, &address)
-	 && w83627ehf_find(0x4e, &address))
+	int err;
+	unsigned short address;
+	struct resource res;
+	struct w83627ehf_sio_data sio_data;
+
+	/* initialize sio_data->kind and sio_data->sioreg.
+	 *
+	 * when Super-I/O functions move to a separate file, the Super-I/O
+	 * driver will probe 0x2e and 0x4e and auto-detect the presence of a
+	 * w83627ehf hardware monitor, and call probe() */
+	if (w83627ehf_find(0x2e, &address, &sio_data) &&
+	    w83627ehf_find(0x4e, &address, &sio_data))
 		return -ENODEV;
 
-	return i2c_isa_add_driver(&w83627ehf_driver);
+	err = platform_driver_register(&w83627ehf_driver);
+	if (err)
+		goto exit;
+
+	if (!(pdev = platform_device_alloc(DRVNAME, address))) {
+		err = -ENOMEM;
+		printk(KERN_ERR DRVNAME ": Device allocation failed\n");
+		goto exit_unregister;
+	}
+
+	err = platform_device_add_data(pdev, &sio_data,
+				       sizeof(struct w83627ehf_sio_data));
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Platform data allocation failed\n");
+		goto exit_device_put;
+	}
+
+	memset(&res, 0, sizeof(res));
+	res.name = DRVNAME;
+	res.start = address + IOREGION_OFFSET;
+	res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1;
+	res.flags = IORESOURCE_IO;
+	err = platform_device_add_resources(pdev, &res, 1);
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Device resource addition failed "
+		       "(%d)\n", err);
+		goto exit_device_put;
+	}
+
+	/* platform_device_add calls probe() */
+	err = platform_device_add(pdev);
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n",
+		       err);
+		goto exit_device_put;
+	}
+
+	return 0;
+
+exit_device_put:
+	platform_device_put(pdev);
+exit_unregister:
+	platform_driver_unregister(&w83627ehf_driver);
+exit:
+	return err;
 }
 
 static void __exit sensors_w83627ehf_exit(void)
 {
-	i2c_isa_del_driver(&w83627ehf_driver);
+	platform_device_unregister(pdev);
+	platform_driver_unregister(&w83627ehf_driver);
 }
 
 MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");