1 files changed, 367 insertions, 239 deletions

diff --git a/drivers/hwmon/smsc47m1.c b/drivers/hwmon/smsc47m1.c
index beb881c4b2e8..1e21c8cc948f 100644
--- a/drivers/hwmon/smsc47m1.c
+++ b/drivers/hwmon/smsc47m1.c
@@ -3,10 +3,11 @@
                  for hardware monitoring
 
     Supports the SMSC LPC47B27x, LPC47M10x, LPC47M112, LPC47M13x,
-    LPC47M14x, LPC47M15x, LPC47M192 and LPC47M997 Super-I/O chips.
+    LPC47M14x, LPC47M15x, LPC47M192, LPC47M292 and LPC47M997
+    Super-I/O chips.
 
     Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
-    Copyright (C) 2004 Jean Delvare <khali@linux-fr.org>
+    Copyright (C) 2004-2007 Jean Delvare <khali@linux-fr.org>
     Ported to Linux 2.6 by Gabriele Gorla <gorlik@yahoo.com>
                         and Jean Delvare
 
@@ -29,17 +30,19 @@
 #include <linux/slab.h>
 #include <linux/ioport.h>
 #include <linux/jiffies.h>
-#include <linux/i2c.h>
-#include <linux/i2c-isa.h>
+#include <linux/platform_device.h>
 #include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/mutex.h>
 #include <linux/sysfs.h>
 #include <asm/io.h>
 
-/* Address is autodetected, there is no default value */
-static unsigned short address;
+static struct platform_device *pdev;
+
+#define DRVNAME "smsc47m1"
+enum chips { smsc47m1, smsc47m2 };
 
 /* Super-I/0 registers and commands */
 
@@ -87,10 +90,18 @@ superio_exit(void)
 #define SMSC47M1_REG_ALARM		0x04
 #define SMSC47M1_REG_TPIN(nr)		(0x34 - (nr))
 #define SMSC47M1_REG_PPIN(nr)		(0x36 - (nr))
-#define SMSC47M1_REG_PWM(nr)		(0x56 + (nr))
 #define SMSC47M1_REG_FANDIV		0x58
-#define SMSC47M1_REG_FAN(nr)		(0x59 + (nr))
-#define SMSC47M1_REG_FAN_PRELOAD(nr)	(0x5B + (nr))
+
+static const u8 SMSC47M1_REG_FAN[3]		= { 0x59, 0x5a, 0x6b };
+static const u8 SMSC47M1_REG_FAN_PRELOAD[3]	= { 0x5b, 0x5c, 0x6c };
+static const u8 SMSC47M1_REG_PWM[3]		= { 0x56, 0x57, 0x69 };
+
+#define SMSC47M2_REG_ALARM6		0x09
+#define SMSC47M2_REG_TPIN1		0x38
+#define SMSC47M2_REG_TPIN2		0x37
+#define SMSC47M2_REG_TPIN3		0x2d
+#define SMSC47M2_REG_PPIN3		0x2c
+#define SMSC47M2_REG_FANDIV3		0x6a
 
 #define MIN_FROM_REG(reg,div)		((reg)>=192 ? 0 : \
 					 983040/((192-(reg))*(div)))
@@ -102,45 +113,57 @@ superio_exit(void)
 #define PWM_TO_REG(reg)			(((reg) >> 1) & 0x7E)
 
 struct smsc47m1_data {
-	struct i2c_client client;
+	unsigned short addr;
+	const char *name;
+	enum chips type;
 	struct class_device *class_dev;
-	struct mutex lock;
 
 	struct mutex update_lock;
 	unsigned long last_updated;	/* In jiffies */
 
-	u8 fan[2];		/* Register value */
-	u8 fan_preload[2];	/* Register value */
-	u8 fan_div[2];		/* Register encoding, shifted right */
+	u8 fan[3];		/* Register value */
+	u8 fan_preload[3];	/* Register value */
+	u8 fan_div[3];		/* Register encoding, shifted right */
 	u8 alarms;		/* Register encoding */
-	u8 pwm[2];		/* Register value (bit 7 is enable) */
+	u8 pwm[3];		/* Register value (bit 0 is disable) */
 };
 
+struct smsc47m1_sio_data {
+	enum chips type;
+};
 
-static int smsc47m1_detect(struct i2c_adapter *adapter);
-static int smsc47m1_detach_client(struct i2c_client *client);
-
-static int smsc47m1_read_value(struct i2c_client *client, u8 reg);
-static void smsc47m1_write_value(struct i2c_client *client, u8 reg, u8 value);
 
+static int smsc47m1_probe(struct platform_device *pdev);
+static int smsc47m1_remove(struct platform_device *pdev);
 static struct smsc47m1_data *smsc47m1_update_device(struct device *dev,
 		int init);
 
+static inline int smsc47m1_read_value(struct smsc47m1_data *data, u8 reg)
+{
+	return inb_p(data->addr + reg);
+}
 
-static struct i2c_driver smsc47m1_driver = {
+static inline void smsc47m1_write_value(struct smsc47m1_data *data, u8 reg,
+		u8 value)
+{
+	outb_p(value, data->addr + reg);
+}
+
+static struct platform_driver smsc47m1_driver = {
 	.driver = {
 		.owner	= THIS_MODULE,
-		.name	= "smsc47m1",
+		.name	= DRVNAME,
 	},
-	.attach_adapter	= smsc47m1_detect,
-	.detach_client	= smsc47m1_detach_client,
+	.probe		= smsc47m1_probe,
+	.remove		= __devexit_p(smsc47m1_remove),
 };
 
-/* nr is 0 or 1 in the callback functions below */
-
-static ssize_t get_fan(struct device *dev, char *buf, int nr)
+static ssize_t get_fan(struct device *dev, struct device_attribute
+		       *devattr, char *buf)
 {
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 	struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
+	int nr = attr->index;
 	/* This chip (stupidly) stops monitoring fan speed if PWM is
 	   enabled and duty cycle is 0%. This is fine if the monitoring
 	   and control concern the same fan, but troublesome if they are
@@ -152,43 +175,54 @@ static ssize_t get_fan(struct device *dev, char *buf, int nr)
 	return sprintf(buf, "%d\n", rpm);
 }
 
-static ssize_t get_fan_min(struct device *dev, char *buf, int nr)
+static ssize_t get_fan_min(struct device *dev, struct device_attribute
+			   *devattr, char *buf)
 {
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 	struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
+	int nr = attr->index;
 	int rpm = MIN_FROM_REG(data->fan_preload[nr],
 			       DIV_FROM_REG(data->fan_div[nr]));
 	return sprintf(buf, "%d\n", rpm);
 }
 
-static ssize_t get_fan_div(struct device *dev, char *buf, int nr)
+static ssize_t get_fan_div(struct device *dev, struct device_attribute
+			   *devattr, char *buf)
 {
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 	struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
-	return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]));
+	return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[attr->index]));
 }
 
-static ssize_t get_pwm(struct device *dev, char *buf, int nr)
+static ssize_t get_pwm(struct device *dev, struct device_attribute
+		       *devattr, char *buf)
 {
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 	struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
-	return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr]));
+	return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[attr->index]));
 }
 
-static ssize_t get_pwm_en(struct device *dev, char *buf, int nr)
+static ssize_t get_pwm_en(struct device *dev, struct device_attribute
+			  *devattr, char *buf)
 {
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 	struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
-	return sprintf(buf, "%d\n", PWM_EN_FROM_REG(data->pwm[nr]));
+	return sprintf(buf, "%d\n", PWM_EN_FROM_REG(data->pwm[attr->index]));
 }
 
-static ssize_t get_alarms(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t get_alarms(struct device *dev, struct device_attribute
+			  *devattr, char *buf)
 {
 	struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
 	return sprintf(buf, "%d\n", data->alarms);
 }
 
-static ssize_t set_fan_min(struct device *dev, const char *buf,
-		size_t count, int nr)
+static ssize_t set_fan_min(struct device *dev, struct device_attribute
+			   *devattr, const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct smsc47m1_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct smsc47m1_data *data = dev_get_drvdata(dev);
+	int nr = attr->index;
 	long rpmdiv, val = simple_strtol(buf, NULL, 10);
 
 	mutex_lock(&data->update_lock);
@@ -200,7 +234,7 @@ static ssize_t set_fan_min(struct device *dev, const char *buf,
 	}
 
 	data->fan_preload[nr] = 192 - ((983040 + rpmdiv / 2) / rpmdiv);
-	smsc47m1_write_value(client, SMSC47M1_REG_FAN_PRELOAD(nr),
+	smsc47m1_write_value(data, SMSC47M1_REG_FAN_PRELOAD[nr],
 			     data->fan_preload[nr]);
 	mutex_unlock(&data->update_lock);
 
@@ -211,12 +245,12 @@ static ssize_t set_fan_min(struct device *dev, const char *buf,
    determined in part by the fan clock divider.  This follows the principle
    of least surprise; the user doesn't expect the fan minimum to change just
    because the divider changed. */
-static ssize_t set_fan_div(struct device *dev, const char *buf,
-		size_t count, int nr)
+static ssize_t set_fan_div(struct device *dev, struct device_attribute
+			   *devattr, const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct smsc47m1_data *data = i2c_get_clientdata(client);
-
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct smsc47m1_data *data = dev_get_drvdata(dev);
+	int nr = attr->index;
 	long new_div = simple_strtol(buf, NULL, 10), tmp;
 	u8 old_div = DIV_FROM_REG(data->fan_div[nr]);
 
@@ -234,27 +268,38 @@ static ssize_t set_fan_div(struct device *dev, const char *buf,
 		return -EINVAL;
 	}
 
-	tmp = smsc47m1_read_value(client, SMSC47M1_REG_FANDIV) & 0x0F;
-	tmp |= (data->fan_div[0] << 4) | (data->fan_div[1] << 6);
-	smsc47m1_write_value(client, SMSC47M1_REG_FANDIV, tmp);
+	switch (nr) {
+	case 0:
+	case 1:
+		tmp = smsc47m1_read_value(data, SMSC47M1_REG_FANDIV)
+		      & ~(0x03 << (4 + 2 * nr));
+		tmp |= data->fan_div[nr] << (4 + 2 * nr);
+		smsc47m1_write_value(data, SMSC47M1_REG_FANDIV, tmp);
+		break;
+	case 2:
+		tmp = smsc47m1_read_value(data, SMSC47M2_REG_FANDIV3) & 0xCF;
+		tmp |= data->fan_div[2] << 4;
+		smsc47m1_write_value(data, SMSC47M2_REG_FANDIV3, tmp);
+		break;
+	}
 
 	/* Preserve fan min */
 	tmp = 192 - (old_div * (192 - data->fan_preload[nr])
 		     + new_div / 2) / new_div;
 	data->fan_preload[nr] = SENSORS_LIMIT(tmp, 0, 191);
-	smsc47m1_write_value(client, SMSC47M1_REG_FAN_PRELOAD(nr),
+	smsc47m1_write_value(data, SMSC47M1_REG_FAN_PRELOAD[nr],
 			     data->fan_preload[nr]);
 	mutex_unlock(&data->update_lock);
 
 	return count;
 }
 
-static ssize_t set_pwm(struct device *dev, const char *buf,
-		size_t count, int nr)
+static ssize_t set_pwm(struct device *dev, struct device_attribute
+		       *devattr, const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct smsc47m1_data *data = i2c_get_clientdata(client);
-
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct smsc47m1_data *data = dev_get_drvdata(dev);
+	int nr = attr->index;
 	long val = simple_strtol(buf, NULL, 10);
 
 	if (val < 0 || val > 255)
@@ -263,19 +308,19 @@ static ssize_t set_pwm(struct device *dev, const char *buf,
 	mutex_lock(&data->update_lock);
 	data->pwm[nr] &= 0x81; /* Preserve additional bits */
 	data->pwm[nr] |= PWM_TO_REG(val);
-	smsc47m1_write_value(client, SMSC47M1_REG_PWM(nr),
+	smsc47m1_write_value(data, SMSC47M1_REG_PWM[nr],
 			     data->pwm[nr]);
 	mutex_unlock(&data->update_lock);
 
 	return count;
 }
 
-static ssize_t set_pwm_en(struct device *dev, const char *buf,
-		size_t count, int nr)
+static ssize_t set_pwm_en(struct device *dev, struct device_attribute
+			  *devattr, const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct smsc47m1_data *data = i2c_get_clientdata(client);
-
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct smsc47m1_data *data = dev_get_drvdata(dev);
+	int nr = attr->index;
 	long val = simple_strtol(buf, NULL, 10);
 	
 	if (val != 0 && val != 1)
@@ -284,7 +329,7 @@ static ssize_t set_pwm_en(struct device *dev, const char *buf,
 	mutex_lock(&data->update_lock);
 	data->pwm[nr] &= 0xFE; /* preserve the other bits */
 	data->pwm[nr] |= !val;
-	smsc47m1_write_value(client, SMSC47M1_REG_PWM(nr),
+	smsc47m1_write_value(data, SMSC47M1_REG_PWM[nr],
 			     data->pwm[nr]);
 	mutex_unlock(&data->update_lock);
 
@@ -292,79 +337,55 @@ static ssize_t set_pwm_en(struct device *dev, const char *buf,
 }
 
 #define fan_present(offset)						\
-static ssize_t get_fan##offset (struct device *dev, struct device_attribute *attr, char *buf)		\
-{									\
-	return get_fan(dev, buf, offset - 1);				\
-}									\
-static ssize_t get_fan##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)	\
-{									\
-	return get_fan_min(dev, buf, offset - 1);			\
-}									\
-static ssize_t set_fan##offset##_min (struct device *dev, struct device_attribute *attr,		\
-		const char *buf, size_t count)				\
-{									\
-	return set_fan_min(dev, buf, count, offset - 1);		\
-}									\
-static ssize_t get_fan##offset##_div (struct device *dev, struct device_attribute *attr, char *buf)	\
-{									\
-	return get_fan_div(dev, buf, offset - 1);			\
-}									\
-static ssize_t set_fan##offset##_div (struct device *dev, struct device_attribute *attr,		\
-		const char *buf, size_t count)				\
-{									\
-	return set_fan_div(dev, buf, count, offset - 1);		\
-}									\
-static ssize_t get_pwm##offset (struct device *dev, struct device_attribute *attr, char *buf)		\
-{									\
-	return get_pwm(dev, buf, offset - 1);				\
-}									\
-static ssize_t set_pwm##offset (struct device *dev, struct device_attribute *attr,			\
-		const char *buf, size_t count)				\
-{									\
-	return set_pwm(dev, buf, count, offset - 1);			\
-}									\
-static ssize_t get_pwm##offset##_en (struct device *dev, struct device_attribute *attr, char *buf)	\
-{									\
-	return get_pwm_en(dev, buf, offset - 1);			\
-}									\
-static ssize_t set_pwm##offset##_en (struct device *dev, struct device_attribute *attr,		\
-		const char *buf, size_t count)				\
-{									\
-	return set_pwm_en(dev, buf, count, offset - 1);			\
-}									\
-static DEVICE_ATTR(fan##offset##_input, S_IRUGO, get_fan##offset,	\
-		NULL);							\
-static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,		\
-		get_fan##offset##_min, set_fan##offset##_min);		\
-static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR,		\
-		get_fan##offset##_div, set_fan##offset##_div);		\
-static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR,			\
-		get_pwm##offset, set_pwm##offset);			\
-static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR,		\
-		get_pwm##offset##_en, set_pwm##offset##_en);
+static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, get_fan,	\
+		NULL, offset - 1);					\
+static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,		\
+		get_fan_min, set_fan_min, offset - 1);			\
+static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR,		\
+		get_fan_div, set_fan_div, offset - 1);			\
+static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR,		\
+		get_pwm, set_pwm, offset - 1);				\
+static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR,	\
+		get_pwm_en, set_pwm_en, offset - 1)
 
 fan_present(1);
 fan_present(2);
+fan_present(3);
 
 static DEVICE_ATTR(alarms, S_IRUGO, get_alarms, NULL);
 
+static ssize_t show_name(struct device *dev, struct device_attribute
+			 *devattr, char *buf)
+{
+	struct smsc47m1_data *data = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%s\n", data->name);
+}
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+
 /* Almost all sysfs files may or may not be created depending on the chip
    setup so we create them individually. It is still convenient to define a
    group to remove them all at once. */
 static struct attribute *smsc47m1_attributes[] = {
-	&dev_attr_fan1_input.attr,
-	&dev_attr_fan1_min.attr,
-	&dev_attr_fan1_div.attr,
-	&dev_attr_fan2_input.attr,
-	&dev_attr_fan2_min.attr,
-	&dev_attr_fan2_div.attr,
-
-	&dev_attr_pwm1.attr,
-	&dev_attr_pwm1_enable.attr,
-	&dev_attr_pwm2.attr,
-	&dev_attr_pwm2_enable.attr,
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+	&sensor_dev_attr_fan1_div.dev_attr.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_min.dev_attr.attr,
+	&sensor_dev_attr_fan2_div.dev_attr.attr,
+	&sensor_dev_attr_fan3_input.dev_attr.attr,
+	&sensor_dev_attr_fan3_min.dev_attr.attr,
+	&sensor_dev_attr_fan3_div.dev_attr.attr,
+
+	&sensor_dev_attr_pwm1.dev_attr.attr,
+	&sensor_dev_attr_pwm1_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm2.dev_attr.attr,
+	&sensor_dev_attr_pwm2_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm3.dev_attr.attr,
+	&sensor_dev_attr_pwm3_enable.dev_attr.attr,
 
 	&dev_attr_alarms.attr,
+	&dev_attr_name.attr,
 	NULL
 };
 
@@ -372,7 +393,8 @@ static const struct attribute_group smsc47m1_group = {
 	.attrs = smsc47m1_attributes,
 };
 
-static int __init smsc47m1_find(unsigned short *addr)
+static int __init smsc47m1_find(unsigned short *addr,
+				struct smsc47m1_sio_data *sio_data)
 {
 	u8 val;
 
@@ -386,18 +408,32 @@ static int __init smsc47m1_find(unsigned short *addr)
 	 * can do much more besides (device id 0x60).
 	 * The LPC47M997 is undocumented, but seems to be compatible with
 	 * the LPC47M192, and has the same device id.
+	 * The LPC47M292 (device id 0x6B) is somewhat compatible, but it
+	 * supports a 3rd fan, and the pin configuration registers are
+	 * unfortunately different.
 	 */
-	if (val == 0x51)
-		printk(KERN_INFO "smsc47m1: Found SMSC LPC47B27x\n");
-	else if (val == 0x59)
-		printk(KERN_INFO "smsc47m1: Found SMSC "
-		       "LPC47M10x/LPC47M112/LPC47M13x\n");
-	else if (val == 0x5F)
-		printk(KERN_INFO "smsc47m1: Found SMSC LPC47M14x\n");
-	else if (val == 0x60)
-		printk(KERN_INFO "smsc47m1: Found SMSC "
-		       "LPC47M15x/LPC47M192/LPC47M997\n");
-	else {
+	switch (val) {
+	case 0x51:
+		pr_info(DRVNAME ": Found SMSC LPC47B27x\n");
+		sio_data->type = smsc47m1;
+		break;
+	case 0x59:
+		pr_info(DRVNAME ": Found SMSC LPC47M10x/LPC47M112/LPC47M13x\n");
+		sio_data->type = smsc47m1;
+		break;
+	case 0x5F:
+		pr_info(DRVNAME ": Found SMSC LPC47M14x\n");
+		sio_data->type = smsc47m1;
+		break;
+	case 0x60:
+		pr_info(DRVNAME ": Found SMSC LPC47M15x/LPC47M192/LPC47M997\n");
+		sio_data->type = smsc47m1;
+		break;
+	case 0x6B:
+		pr_info(DRVNAME ": Found SMSC LPC47M292\n");
+		sio_data->type = smsc47m2;
+		break;
+	default:
 		superio_exit();
 		return -ENODEV;
 	}
@@ -407,7 +443,7 @@ static int __init smsc47m1_find(unsigned short *addr)
 	      |  superio_inb(SUPERIO_REG_BASE + 1);
 	val = superio_inb(SUPERIO_REG_ACT);
 	if (*addr == 0 || (val & 0x01) == 0) {
-		printk(KERN_INFO "smsc47m1: Device is disabled, will not use\n");
+		pr_info(DRVNAME ": Device is disabled, will not use\n");
 		superio_exit();
 		return -ENODEV;
 	}
@@ -416,15 +452,25 @@ static int __init smsc47m1_find(unsigned short *addr)
 	return 0;
 }
 
-static int smsc47m1_detect(struct i2c_adapter *adapter)
+static int __devinit smsc47m1_probe(struct platform_device *pdev)
 {
-	struct i2c_client *new_client;
+	struct device *dev = &pdev->dev;
+	struct smsc47m1_sio_data *sio_data = dev->platform_data;
 	struct smsc47m1_data *data;
+	struct resource *res;
 	int err = 0;
-	int fan1, fan2, pwm1, pwm2;
-
-	if (!request_region(address, SMSC_EXTENT, smsc47m1_driver.driver.name)) {
-		dev_err(&adapter->dev, "Region 0x%x already in use!\n", address);
+	int fan1, fan2, fan3, pwm1, pwm2, pwm3;
+
+	static const char *names[] = {
+		"smsc47m1",
+		"smsc47m2",
+	};
+
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	if (!request_region(res->start, SMSC_EXTENT, DRVNAME)) {
+		dev_err(dev, "Region 0x%lx-0x%lx already in use!\n",
+			(unsigned long)res->start,
+			(unsigned long)res->end);
 		return -EBUSY;
 	}
 
@@ -433,93 +479,114 @@ static int smsc47m1_detect(struct i2c_adapter *adapter)
 		goto error_release;
 	}
 
-	new_client = &data->client;
-	i2c_set_clientdata(new_client, data);
-	new_client->addr = address;
-	mutex_init(&data->lock);
-	new_client->adapter = adapter;
-	new_client->driver = &smsc47m1_driver;
-	new_client->flags = 0;
-
-	strlcpy(new_client->name, "smsc47m1", I2C_NAME_SIZE);
+	data->addr = res->start;
+	data->type = sio_data->type;
+	data->name = names[sio_data->type];
 	mutex_init(&data->update_lock);
+	platform_set_drvdata(pdev, data);
 
 	/* If no function is properly configured, there's no point in
 	   actually registering the chip. */
-	fan1 = (smsc47m1_read_value(new_client, SMSC47M1_REG_TPIN(0)) & 0x05)
-	       == 0x05;
-	fan2 = (smsc47m1_read_value(new_client, SMSC47M1_REG_TPIN(1)) & 0x05)
-	       == 0x05;
-	pwm1 = (smsc47m1_read_value(new_client, SMSC47M1_REG_PPIN(0)) & 0x05)
+	pwm1 = (smsc47m1_read_value(data, SMSC47M1_REG_PPIN(0)) & 0x05)
 	       == 0x04;
-	pwm2 = (smsc47m1_read_value(new_client, SMSC47M1_REG_PPIN(1)) & 0x05)
+	pwm2 = (smsc47m1_read_value(data, SMSC47M1_REG_PPIN(1)) & 0x05)
 	       == 0x04;
-	if (!(fan1 || fan2 || pwm1 || pwm2)) {
-		dev_warn(&adapter->dev, "Device at 0x%x is not configured, "
-			 "will not use\n", new_client->addr);
+	if (data->type == smsc47m2) {
+		fan1 = (smsc47m1_read_value(data, SMSC47M2_REG_TPIN1)
+			& 0x0d) == 0x09;
+		fan2 = (smsc47m1_read_value(data, SMSC47M2_REG_TPIN2)
+			& 0x0d) == 0x09;
+		fan3 = (smsc47m1_read_value(data, SMSC47M2_REG_TPIN3)
+			& 0x0d) == 0x0d;
+		pwm3 = (smsc47m1_read_value(data, SMSC47M2_REG_PPIN3)
+			& 0x0d) == 0x08;
+	} else {
+		fan1 = (smsc47m1_read_value(data, SMSC47M1_REG_TPIN(0))
+			& 0x05) == 0x05;
+		fan2 = (smsc47m1_read_value(data, SMSC47M1_REG_TPIN(1))
+			& 0x05) == 0x05;
+		fan3 = 0;
+		pwm3 = 0;
+	}
+	if (!(fan1 || fan2 || fan3 || pwm1 || pwm2 || pwm3)) {
+		dev_warn(dev, "Device not configured, will not use\n");
 		err = -ENODEV;
 		goto error_free;
 	}
 
-	if ((err = i2c_attach_client(new_client)))
-		goto error_free;
-
 	/* Some values (fan min, clock dividers, pwm registers) may be
 	   needed before any update is triggered, so we better read them
 	   at least once here. We don't usually do it that way, but in
 	   this particular case, manually reading 5 registers out of 8
 	   doesn't make much sense and we're better using the existing
 	   function. */
-	smsc47m1_update_device(&new_client->dev, 1);
+	smsc47m1_update_device(dev, 1);
 
 	/* Register sysfs hooks */
 	if (fan1) {
-		if ((err = device_create_file(&new_client->dev,
-					      &dev_attr_fan1_input))
-		 || (err = device_create_file(&new_client->dev,
-					      &dev_attr_fan1_min))
-		 || (err = device_create_file(&new_client->dev,
-					      &dev_attr_fan1_div)))
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_fan1_input.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan1_min.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan1_div.dev_attr)))
 			goto error_remove_files;
 	} else
-		dev_dbg(&new_client->dev, "Fan 1 not enabled by hardware, "
-			"skipping\n");
+		dev_dbg(dev, "Fan 1 not enabled by hardware, skipping\n");
 
 	if (fan2) {
-		if ((err = device_create_file(&new_client->dev,
-					      &dev_attr_fan2_input))
-		 || (err = device_create_file(&new_client->dev,
-					      &dev_attr_fan2_min))
-		 || (err = device_create_file(&new_client->dev,
-					      &dev_attr_fan2_div)))
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_fan2_input.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan2_min.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan2_div.dev_attr)))
 			goto error_remove_files;
 	} else
-		dev_dbg(&new_client->dev, "Fan 2 not enabled by hardware, "
-			"skipping\n");
+		dev_dbg(dev, "Fan 2 not enabled by hardware, skipping\n");
+
+	if (fan3) {
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_fan3_input.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan3_min.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan3_div.dev_attr)))
+			goto error_remove_files;
+	} else
+		dev_dbg(dev, "Fan 3 not enabled by hardware, skipping\n");
 
 	if (pwm1) {
-		if ((err = device_create_file(&new_client->dev,
-					      &dev_attr_pwm1))
-		 || (err = device_create_file(&new_client->dev,
-					      &dev_attr_pwm1_enable)))
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_pwm1.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_pwm1_enable.dev_attr)))
 			goto error_remove_files;
 	} else
-		dev_dbg(&new_client->dev, "PWM 1 not enabled by hardware, "
-			"skipping\n");
+		dev_dbg(dev, "PWM 1 not enabled by hardware, skipping\n");
+
 	if (pwm2) {
-		if ((err = device_create_file(&new_client->dev,
-					      &dev_attr_pwm2))
-		 || (err = device_create_file(&new_client->dev,
-					      &dev_attr_pwm2_enable)))
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_pwm2.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_pwm2_enable.dev_attr)))
+			goto error_remove_files;
+	} else
+		dev_dbg(dev, "PWM 2 not enabled by hardware, skipping\n");
+
+	if (pwm3) {
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_pwm3.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_pwm3_enable.dev_attr)))
 			goto error_remove_files;
 	} else
-		dev_dbg(&new_client->dev, "PWM 2 not enabled by hardware, "
-			"skipping\n");
+		dev_dbg(dev, "PWM 3 not enabled by hardware, skipping\n");
 
-	if ((err = device_create_file(&new_client->dev, &dev_attr_alarms)))
+	if ((err = device_create_file(dev, &dev_attr_alarms)))
 		goto error_remove_files;
 
-	data->class_dev = hwmon_device_register(&new_client->dev);
+	data->class_dev = hwmon_device_register(dev);
 	if (IS_ERR(data->class_dev)) {
 		err = PTR_ERR(data->class_dev);
 		goto error_remove_files;
@@ -528,78 +595,71 @@ static int smsc47m1_detect(struct i2c_adapter *adapter)
 	return 0;
 
 error_remove_files:
-	sysfs_remove_group(&new_client->dev.kobj, &smsc47m1_group);
-	i2c_detach_client(new_client);
+	sysfs_remove_group(&dev->kobj, &smsc47m1_group);
 error_free:
 	kfree(data);
 error_release:
-	release_region(address, SMSC_EXTENT);
+	release_region(res->start, SMSC_EXTENT);
 	return err;
 }
 
-static int smsc47m1_detach_client(struct i2c_client *client)
+static int __devexit smsc47m1_remove(struct platform_device *pdev)
 {
-	struct smsc47m1_data *data = i2c_get_clientdata(client);
-	int err;
+	struct smsc47m1_data *data = platform_get_drvdata(pdev);
+	struct resource *res;
 
+	platform_set_drvdata(pdev, NULL);
 	hwmon_device_unregister(data->class_dev);
-	sysfs_remove_group(&client->dev.kobj, &smsc47m1_group);
-
-	if ((err = i2c_detach_client(client)))
-		return err;
+	sysfs_remove_group(&pdev->dev.kobj, &smsc47m1_group);
 
-	release_region(client->addr, SMSC_EXTENT);
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	release_region(res->start, SMSC_EXTENT);
 	kfree(data);
 
 	return 0;
 }
 
-static int smsc47m1_read_value(struct i2c_client *client, u8 reg)
-{
-	int res;
-
-	mutex_lock(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock);
-	res = inb_p(client->addr + reg);
-	mutex_unlock(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock);
-	return res;
-}
-
-static void smsc47m1_write_value(struct i2c_client *client, u8 reg, u8 value)
-{
-	mutex_lock(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock);
-	outb_p(value, client->addr + reg);
-	mutex_unlock(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock);
-}
-
 static struct smsc47m1_data *smsc47m1_update_device(struct device *dev,
 		int init)
 {
- 	struct i2c_client *client = to_i2c_client(dev);
-	struct smsc47m1_data *data = i2c_get_clientdata(client);
+	struct smsc47m1_data *data = dev_get_drvdata(dev);
 
 	mutex_lock(&data->update_lock);
 
 	if (time_after(jiffies, data->last_updated + HZ + HZ / 2) || init) {
-		int i;
-
-		for (i = 0; i < 2; i++) {
-			data->fan[i] = smsc47m1_read_value(client,
-				       SMSC47M1_REG_FAN(i));
-			data->fan_preload[i] = smsc47m1_read_value(client,
-					       SMSC47M1_REG_FAN_PRELOAD(i));
-			data->pwm[i] = smsc47m1_read_value(client,
-				       SMSC47M1_REG_PWM(i));
+		int i, fan_nr;
+		fan_nr = data->type == smsc47m2 ? 3 : 2;
+
+		for (i = 0; i < fan_nr; i++) {
+			data->fan[i] = smsc47m1_read_value(data,
+				       SMSC47M1_REG_FAN[i]);
+			data->fan_preload[i] = smsc47m1_read_value(data,
+					       SMSC47M1_REG_FAN_PRELOAD[i]);
+			data->pwm[i] = smsc47m1_read_value(data,
+				       SMSC47M1_REG_PWM[i]);
 		}
 
-		i = smsc47m1_read_value(client, SMSC47M1_REG_FANDIV);
+		i = smsc47m1_read_value(data, SMSC47M1_REG_FANDIV);
 		data->fan_div[0] = (i >> 4) & 0x03;
 		data->fan_div[1] = i >> 6;
 
-		data->alarms = smsc47m1_read_value(client,
+		data->alarms = smsc47m1_read_value(data,
 			       SMSC47M1_REG_ALARM) >> 6;
 		/* Clear alarms if needed */
 		if (data->alarms)
-			smsc47m1_write_value(client, SMSC47M1_REG_ALARM, 0xC0);
+			smsc47m1_write_value(data, SMSC47M1_REG_ALARM, 0xC0);
+
+		if (fan_nr >= 3) {
+			data->fan_div[2] = (smsc47m1_read_value(data,
+					    SMSC47M2_REG_FANDIV3) >> 4) & 0x03;
+			data->alarms |= (smsc47m1_read_value(data,
+					 SMSC47M2_REG_ALARM6) & 0x40) >> 4;
+			/* Clear alarm if needed */
+			if (data->alarms & 0x04)
+				smsc47m1_write_value(data,
+						     SMSC47M2_REG_ALARM6,
+						     0x40);
+		}
 
 		data->last_updated = jiffies;
 	}
@@ -608,18 +668,86 @@ static struct smsc47m1_data *smsc47m1_update_device(struct device *dev,
 	return data;
 }
 
+static int __init smsc47m1_device_add(unsigned short address,
+				      const struct smsc47m1_sio_data *sio_data)
+{
+	struct resource res = {
+		.start	= address,
+		.end	= address + SMSC_EXTENT - 1,
+		.name	= DRVNAME,
+		.flags	= IORESOURCE_IO,
+	};
+	int err;
+
+	pdev = platform_device_alloc(DRVNAME, address);
+	if (!pdev) {
+		err = -ENOMEM;
+		printk(KERN_ERR DRVNAME ": Device allocation failed\n");
+		goto exit;
+	}
+
+	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;
+	}
+
+	pdev->dev.platform_data = kmalloc(sizeof(struct smsc47m1_sio_data),
+					  GFP_KERNEL);
+	if (!pdev->dev.platform_data) {
+		err = -ENOMEM;
+		printk(KERN_ERR DRVNAME ": Platform data allocation failed\n");
+		goto exit_device_put;
+	}
+	memcpy(pdev->dev.platform_data, sio_data,
+	       sizeof(struct smsc47m1_sio_data));
+
+	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:
+	return err;
+}
+
 static int __init sm_smsc47m1_init(void)
 {
-	if (smsc47m1_find(&address)) {
+	int err;
+	unsigned short address;
+	struct smsc47m1_sio_data sio_data;
+
+	if (smsc47m1_find(&address, &sio_data))
 		return -ENODEV;
-	}
 
-	return i2c_isa_add_driver(&smsc47m1_driver);
+	err = platform_driver_register(&smsc47m1_driver);
+	if (err)
+		goto exit;
+
+	/* Sets global pdev as a side effect */
+	err = smsc47m1_device_add(address, &sio_data);
+	if (err)
+		goto exit_driver;
+
+	return 0;
+
+exit_driver:
+	platform_driver_unregister(&smsc47m1_driver);
+exit:
+	return err;
 }
 
 static void __exit sm_smsc47m1_exit(void)
 {
-	i2c_isa_del_driver(&smsc47m1_driver);
+	platform_device_unregister(pdev);
+	platform_driver_unregister(&smsc47m1_driver);
 }
 
 MODULE_AUTHOR("Mark D. Studebaker <mdsxyz123@yahoo.com>");