hwmon/pc87360: Convert to a platform driver

Convert the pc87360 driver from the nonsensical i2c-isa hack to a
regular platform driver. This is a direct conversion, other cleanups
could happen on top of that.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Jim Cromie <jim.cromie@gmail.com>

1 files changed, 137 insertions, 95 deletions

diff --git a/drivers/hwmon/pc87360.c b/drivers/hwmon/pc87360.c
index c8a21be09d87..cb72526c346a 100644
--- a/drivers/hwmon/pc87360.c
+++ b/drivers/hwmon/pc87360.c
@@ -1,7 +1,7 @@
 /*
  *  pc87360.c - Part of lm_sensors, Linux kernel modules
  *              for hardware monitoring
- *  Copyright (C) 2004 Jean Delvare <khali@linux-fr.org>
+ *  Copyright (C) 2004, 2007 Jean Delvare <khali@linux-fr.org>
  *
  *  Copied from smsc47m1.c:
  *  Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
@@ -37,8 +37,7 @@
 #include <linux/init.h>
 #include <linux/slab.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/hwmon-vid.h>
@@ -47,12 +46,10 @@
 #include <asm/io.h>
 
 static u8 devid;
-static unsigned short address;
+static struct platform_device *pdev;
 static unsigned short extra_isa[3];
 static u8 confreg[4];
 
-enum chips { any_chip, pc87360, pc87363, pc87364, pc87365, pc87366 };
-
 static int init = 1;
 module_param(init, int, 0);
 MODULE_PARM_DESC(init,
@@ -178,11 +175,11 @@ static inline u8 PWM_TO_REG(int val, int inv)
                                          ((val) + 500) / 1000)
 
 /*
- * Client data (each client gets its own)
+ * Device data
  */
 
 struct pc87360_data {
-        struct i2c_client client;
+        const char *name;
         struct class_device *class_dev;
         struct mutex lock;
         struct mutex update_lock;
@@ -222,27 +219,28 @@ struct pc87360_data {
  * Functions declaration
  */
 
-static int pc87360_detect(struct i2c_adapter *adapter);
-static int pc87360_detach_client(struct i2c_client *client);
+static int pc87360_probe(struct platform_device *pdev);
+static int pc87360_remove(struct platform_device *pdev);
 
 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
                               u8 reg);
 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
                                 u8 reg, u8 value);
-static void pc87360_init_client(struct i2c_client *client, int use_thermistors);
+static void pc87360_init_device(struct platform_device *pdev,
+                                int use_thermistors);
 static struct pc87360_data *pc87360_update_device(struct device *dev);
 
 /*
- * Driver data (common to all clients)
+ * Driver data
  */
 
-static struct i2c_driver pc87360_driver = {
+static struct platform_driver pc87360_driver = {
         .driver = {
                 .owner  = THIS_MODULE,
                 .name   = "pc87360",
         },
-        .attach_adapter = pc87360_detect,
-        .detach_client  = pc87360_detach_client,
+        .probe          = pc87360_probe,
+        .remove         = __devexit_p(pc87360_remove),
 };
 
 /*
@@ -281,8 +279,7 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr,
         size_t count)
 {
         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-        struct i2c_client *client = to_i2c_client(dev);
-        struct pc87360_data *data = i2c_get_clientdata(client);
+        struct pc87360_data *data = dev_get_drvdata(dev);
         long fan_min = simple_strtol(buf, NULL, 10);
 
         mutex_lock(&data->update_lock);
@@ -347,8 +344,7 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, con
         size_t count)
 {
         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-        struct i2c_client *client = to_i2c_client(dev);
-        struct pc87360_data *data = i2c_get_clientdata(client);
+        struct pc87360_data *data = dev_get_drvdata(dev);
         long val = simple_strtol(buf, NULL, 10);
 
         mutex_lock(&data->update_lock);
@@ -410,8 +406,7 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr,
         size_t count)
 {
         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-        struct i2c_client *client = to_i2c_client(dev);
-        struct pc87360_data *data = i2c_get_clientdata(client);
+        struct pc87360_data *data = dev_get_drvdata(dev);
         long val = simple_strtol(buf, NULL, 10);
 
         mutex_lock(&data->update_lock);
@@ -425,8 +420,7 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr,
         size_t count)
 {
         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-        struct i2c_client *client = to_i2c_client(dev);
-        struct pc87360_data *data = i2c_get_clientdata(client);
+        struct pc87360_data *data = dev_get_drvdata(dev);
         long val = simple_strtol(buf, NULL, 10);
 
         mutex_lock(&data->update_lock);
@@ -511,8 +505,7 @@ static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char
 }
 static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 {
-        struct i2c_client *client = to_i2c_client(dev);
-        struct pc87360_data *data = i2c_get_clientdata(client);
+        struct pc87360_data *data = dev_get_drvdata(dev);
         data->vrm = simple_strtoul(buf, NULL, 10);
         return count;
 }
@@ -584,8 +577,7 @@ static ssize_t set_therm_min(struct device *dev, struct device_attribute *devatt
         size_t count)
 {
         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-        struct i2c_client *client = to_i2c_client(dev);
-        struct pc87360_data *data = i2c_get_clientdata(client);
+        struct pc87360_data *data = dev_get_drvdata(dev);
         long val = simple_strtol(buf, NULL, 10);
 
         mutex_lock(&data->update_lock);
@@ -599,8 +591,7 @@ static ssize_t set_therm_max(struct device *dev, struct device_attribute *devatt
         size_t count)
 {
         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-        struct i2c_client *client = to_i2c_client(dev);
-        struct pc87360_data *data = i2c_get_clientdata(client);
+        struct pc87360_data *data = dev_get_drvdata(dev);
         long val = simple_strtol(buf, NULL, 10);
 
         mutex_lock(&data->update_lock);
@@ -614,8 +605,7 @@ static ssize_t set_therm_crit(struct device *dev, struct device_attribute *devat
         size_t count)
 {
         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-        struct i2c_client *client = to_i2c_client(dev);
-        struct pc87360_data *data = i2c_get_clientdata(client);
+        struct pc87360_data *data = dev_get_drvdata(dev);
         long val = simple_strtol(buf, NULL, 10);
 
         mutex_lock(&data->update_lock);
@@ -715,8 +705,7 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *devattr
         size_t count)
 {
         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-        struct i2c_client *client = to_i2c_client(dev);
-        struct pc87360_data *data = i2c_get_clientdata(client);
+        struct pc87360_data *data = dev_get_drvdata(dev);
         long val = simple_strtol(buf, NULL, 10);
 
         mutex_lock(&data->update_lock);
@@ -730,8 +719,7 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *devattr
         size_t count)
 {
         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-        struct i2c_client *client = to_i2c_client(dev);
-        struct pc87360_data *data = i2c_get_clientdata(client);
+        struct pc87360_data *data = dev_get_drvdata(dev);
         long val = simple_strtol(buf, NULL, 10);
 
         mutex_lock(&data->update_lock);
@@ -745,8 +733,7 @@ static ssize_t set_temp_crit(struct device *dev, struct device_attribute *devatt
         size_t count)
 {
         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-        struct i2c_client *client = to_i2c_client(dev);
-        struct pc87360_data *data = i2c_get_clientdata(client);
+        struct pc87360_data *data = dev_get_drvdata(dev);
         long val = simple_strtol(buf, NULL, 10);
 
         mutex_lock(&data->update_lock);
@@ -818,6 +805,14 @@ static const struct attribute_group pc8736x_temp_group = {
         .attrs = pc8736x_temp_attr_array,
 };
 
+static ssize_t show_name(struct device *dev, struct device_attribute
+                         *devattr, char *buf)
+{
+        struct pc87360_data *data = dev_get_drvdata(dev);
+        return sprintf(buf, "%s\n", data->name);
+}
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+
 /*
  * Device detection, registration and update
  */
@@ -912,28 +907,18 @@ static int __init pc87360_find(int sioaddr, u8 *devid, unsigned short *addresses
         return 0;
 }
 
-static int pc87360_detect(struct i2c_adapter *adapter)
+static int __devinit pc87360_probe(struct platform_device *pdev)
 {
         int i;
-        struct i2c_client *client;
         struct pc87360_data *data;
         int err = 0;
         const char *name = "pc87360";
         int use_thermistors = 0;
-        struct device *dev;
+        struct device *dev = &pdev->dev;
 
         if (!(data = kzalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
                 return -ENOMEM;
 
-        client = &data->client;
-        dev = &client->dev;
-        i2c_set_clientdata(client, data);
-        client->addr = address;
-        mutex_init(&data->lock);
-        client->adapter = adapter;
-        client->driver = &pc87360_driver;
-        client->flags = 0;
-
         data->fannr = 2;
         data->innr = 0;
         data->tempnr = 0;
@@ -960,15 +945,17 @@ static int pc87360_detect(struct i2c_adapter *adapter)
                 break;
         }
 
-        strlcpy(client->name, name, sizeof(client->name));
+        data->name = name;
         data->valid = 0;
+        mutex_init(&data->lock);
         mutex_init(&data->update_lock);
+        platform_set_drvdata(pdev, data);
 
         for (i = 0; i < 3; i++) {
                 if (((data->address[i] = extra_isa[i]))
                  && !request_region(extra_isa[i], PC87360_EXTENT,
                                     pc87360_driver.driver.name)) {
-                        dev_err(&client->dev, "Region 0x%x-0x%x already "
+                        dev_err(dev, "Region 0x%x-0x%x already "
                                 "in use!\n", extra_isa[i],
                                 extra_isa[i]+PC87360_EXTENT-1);
                         for (i--; i >= 0; i--)
@@ -982,9 +969,6 @@ static int pc87360_detect(struct i2c_adapter *adapter)
         if (data->fannr)
                 data->fan_conf = confreg[0] | (confreg[1] << 8);
 
-        if ((err = i2c_attach_client(client)))
-                goto ERROR2;
-
         /* Use the correct reference voltage
            Unless both the VLM and the TMS logical devices agree to
            use an external Vref, the internal one is used. */
@@ -996,7 +980,7 @@ static int pc87360_detect(struct i2c_adapter *adapter)
                                                 PC87365_REG_TEMP_CONFIG);
                 }
                 data->in_vref = (i&0x02) ? 3025 : 2966;
-                dev_dbg(&client->dev, "Using %s reference voltage\n",
+                dev_dbg(dev, "Using %s reference voltage\n",
                         (i&0x02) ? "external" : "internal");
 
                 data->vid_conf = confreg[3];
@@ -1015,18 +999,18 @@ static int pc87360_detect(struct i2c_adapter *adapter)
                 if (devid == 0xe9 && data->address[1]) /* PC87366 */
                         use_thermistors = confreg[2] & 0x40;
 
-                pc87360_init_client(client, use_thermistors);
+                pc87360_init_device(pdev, use_thermistors);
         }
 
         /* Register all-or-nothing sysfs groups */
 
         if (data->innr &&
-            (err = sysfs_create_group(&client->dev.kobj,
+            (err = sysfs_create_group(&dev->kobj,
                                       &pc8736x_vin_group)))
                 goto ERROR3;
 
         if (data->innr == 14 &&
-            (err = sysfs_create_group(&client->dev.kobj,
+            (err = sysfs_create_group(&dev->kobj,
                                       &pc8736x_therm_group)))
                 goto ERROR3;
 
@@ -1067,7 +1051,10 @@ static int pc87360_detect(struct i2c_adapter *adapter)
                         goto ERROR3;
         }
 
-        data->class_dev = hwmon_device_register(&client->dev);
+        if ((err = device_create_file(dev, &dev_attr_name)))
+                goto ERROR3;
+
+        data->class_dev = hwmon_device_register(dev);
         if (IS_ERR(data->class_dev)) {
                 err = PTR_ERR(data->class_dev);
                 goto ERROR3;
@@ -1075,14 +1062,12 @@ static int pc87360_detect(struct i2c_adapter *adapter)
         return 0;
 
 ERROR3:
+        device_remove_file(dev, &dev_attr_name);
         /* can still remove groups whose members were added individually */
-        sysfs_remove_group(&client->dev.kobj, &pc8736x_temp_group);
-        sysfs_remove_group(&client->dev.kobj, &pc8736x_fan_group);
-        sysfs_remove_group(&client->dev.kobj, &pc8736x_therm_group);
-        sysfs_remove_group(&client->dev.kobj, &pc8736x_vin_group);
-
-        i2c_detach_client(client);
-ERROR2:
+        sysfs_remove_group(&dev->kobj, &pc8736x_temp_group);
+        sysfs_remove_group(&dev->kobj, &pc8736x_fan_group);
+        sysfs_remove_group(&dev->kobj, &pc8736x_therm_group);
+        sysfs_remove_group(&dev->kobj, &pc8736x_vin_group);
         for (i = 0; i < 3; i++) {
                 if (data->address[i]) {
                         release_region(data->address[i], PC87360_EXTENT);
@@ -1093,20 +1078,18 @@ ERROR1:
         return err;
 }
 
-static int pc87360_detach_client(struct i2c_client *client)
+static int __devexit pc87360_remove(struct platform_device *pdev)
 {
-        struct pc87360_data *data = i2c_get_clientdata(client);
+        struct pc87360_data *data = platform_get_drvdata(pdev);
         int i;
 
         hwmon_device_unregister(data->class_dev);
 
-        sysfs_remove_group(&client->dev.kobj, &pc8736x_temp_group);
-        sysfs_remove_group(&client->dev.kobj, &pc8736x_fan_group);
-        sysfs_remove_group(&client->dev.kobj, &pc8736x_therm_group);
-        sysfs_remove_group(&client->dev.kobj, &pc8736x_vin_group);
-
-        if ((i = i2c_detach_client(client)))
-                return i;
+        device_remove_file(&pdev->dev, &dev_attr_name);
+        sysfs_remove_group(&pdev->dev.kobj, &pc8736x_temp_group);
+        sysfs_remove_group(&pdev->dev.kobj, &pc8736x_fan_group);
+        sysfs_remove_group(&pdev->dev.kobj, &pc8736x_therm_group);
+        sysfs_remove_group(&pdev->dev.kobj, &pc8736x_vin_group);
 
         for (i = 0; i < 3; i++) {
                 if (data->address[i]) {
@@ -1144,9 +1127,10 @@ static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
         mutex_unlock(&(data->lock));
 }
 
-static void pc87360_init_client(struct i2c_client *client, int use_thermistors)
+static void pc87360_init_device(struct platform_device *pdev,
+                                int use_thermistors)
 {
-        struct pc87360_data *data = i2c_get_clientdata(client);
+        struct pc87360_data *data = platform_get_drvdata(pdev);
         int i, nr;
         const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
         const u8 init_temp[3] = { 2, 2, 1 };
@@ -1155,7 +1139,7 @@ static void pc87360_init_client(struct i2c_client *client, int use_thermistors)
         if (init >= 2 && data->innr) {
                 reg = pc87360_read_value(data, LD_IN, NO_BANK,
                                          PC87365_REG_IN_CONVRATE);
-                dev_info(&client->dev, "VLM conversion set to "
+                dev_info(&pdev->dev, "VLM conversion set to "
                          "1s period, 160us delay\n");
                 pc87360_write_value(data, LD_IN, NO_BANK,
                                     PC87365_REG_IN_CONVRATE,
@@ -1169,7 +1153,7 @@ static void pc87360_init_client(struct i2c_client *client, int use_thermistors)
                         reg = pc87360_read_value(data, LD_IN, i,
                                                  PC87365_REG_IN_STATUS);
                         if (!(reg & 0x01)) {
-                                dev_dbg(&client->dev, "Forcibly "
+                                dev_dbg(&pdev->dev, "Forcibly "
                                         "enabling in%d\n", i);
                                 pc87360_write_value(data, LD_IN, i,
                                                     PC87365_REG_IN_STATUS,
@@ -1193,7 +1177,7 @@ static void pc87360_init_client(struct i2c_client *client, int use_thermistors)
                         reg = pc87360_read_value(data, LD_TEMP, i,
                                                  PC87365_REG_TEMP_STATUS);
                         if (!(reg & 0x01)) {
-                                dev_dbg(&client->dev, "Forcibly "
+                                dev_dbg(&pdev->dev, "Forcibly "
                                         "enabling temp%d\n", i+1);
                                 pc87360_write_value(data, LD_TEMP, i,
                                                     PC87365_REG_TEMP_STATUS,
@@ -1210,7 +1194,7 @@ static void pc87360_init_client(struct i2c_client *client, int use_thermistors)
                                 reg = pc87360_read_value(data, LD_TEMP,
                                       (i-11)/2, PC87365_REG_TEMP_STATUS);
                                 if (reg & 0x01) {
-                                        dev_dbg(&client->dev, "Skipping "
+                                        dev_dbg(&pdev->dev, "Skipping "
                                                 "temp%d, pin already in use "
                                                 "by temp%d\n", i-7, (i-11)/2);
                                         continue;
@@ -1220,7 +1204,7 @@ static void pc87360_init_client(struct i2c_client *client, int use_thermistors)
                                 reg = pc87360_read_value(data, LD_IN, i,
                                                          PC87365_REG_IN_STATUS);
                                 if (!(reg & 0x01)) {
-                                        dev_dbg(&client->dev, "Forcibly "
+                                        dev_dbg(&pdev->dev, "Forcibly "
                                                 "enabling temp%d\n", i-7);
                                         pc87360_write_value(data, LD_IN, i,
                                                 PC87365_REG_TEMP_STATUS,
@@ -1234,7 +1218,7 @@ static void pc87360_init_client(struct i2c_client *client, int use_thermistors)
                 reg = pc87360_read_value(data, LD_IN, NO_BANK,
                                          PC87365_REG_IN_CONFIG);
                 if (reg & 0x01) {
-                        dev_dbg(&client->dev, "Forcibly "
+                        dev_dbg(&pdev->dev, "Forcibly "
                                 "enabling monitoring (VLM)\n");
                         pc87360_write_value(data, LD_IN, NO_BANK,
                                             PC87365_REG_IN_CONFIG,
@@ -1246,7 +1230,7 @@ static void pc87360_init_client(struct i2c_client *client, int use_thermistors)
                 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
                                          PC87365_REG_TEMP_CONFIG);
                 if (reg & 0x01) {
-                        dev_dbg(&client->dev, "Forcibly enabling "
+                        dev_dbg(&pdev->dev, "Forcibly enabling "
                                 "monitoring (TMS)\n");
                         pc87360_write_value(data, LD_TEMP, NO_BANK,
                                             PC87365_REG_TEMP_CONFIG,
@@ -1268,9 +1252,9 @@ static void pc87360_init_client(struct i2c_client *client, int use_thermistors)
         }
 }
 
-static void pc87360_autodiv(struct i2c_client *client, int nr)
+static void pc87360_autodiv(struct device *dev, int nr)
 {
-        struct pc87360_data *data = i2c_get_clientdata(client);
+        struct pc87360_data *data = dev_get_drvdata(dev);
         u8 old_min = data->fan_min[nr];
 
         /* Increase clock divider if needed and possible */
@@ -1280,7 +1264,7 @@ static void pc87360_autodiv(struct i2c_client *client, int nr)
                         data->fan_status[nr] += 0x20;
                         data->fan_min[nr] >>= 1;
                         data->fan[nr] >>= 1;
-                        dev_dbg(&client->dev, "Increasing "
+                        dev_dbg(dev, "Increasing "
                                 "clock divider to %d for fan %d\n",
                                 FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1);
                 }
@@ -1292,7 +1276,7 @@ static void pc87360_autodiv(struct i2c_client *client, int nr)
                         data->fan_status[nr] -= 0x20;
                         data->fan_min[nr] <<= 1;
                         data->fan[nr] <<= 1;
-                        dev_dbg(&client->dev, "Decreasing "
+                        dev_dbg(dev, "Decreasing "
                                 "clock divider to %d for fan %d\n",
                                 FAN_DIV_FROM_REG(data->fan_status[nr]),
                                 nr+1);
@@ -1309,14 +1293,13 @@ static void pc87360_autodiv(struct i2c_client *client, int nr)
 
 static struct pc87360_data *pc87360_update_device(struct device *dev)
 {
-        struct i2c_client *client = to_i2c_client(dev);
-        struct pc87360_data *data = i2c_get_clientdata(client);
+        struct pc87360_data *data = dev_get_drvdata(dev);
         u8 i;
 
         mutex_lock(&data->update_lock);
 
         if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
-                dev_dbg(&client->dev, "Data update\n");
+                dev_dbg(dev, "Data update\n");
 
                 /* Fans */
                 for (i = 0; i < data->fannr; i++) {
@@ -1330,7 +1313,7 @@ static struct pc87360_data *pc87360_update_device(struct device *dev)
                                                    LD_FAN, NO_BANK,
                                                    PC87360_REG_FAN_MIN(i));
                                 /* Change clock divider if needed */
-                                pc87360_autodiv(client, i);
+                                pc87360_autodiv(dev, i);
                                 /* Clear bits and write new divider */
                                 pc87360_write_value(data, LD_FAN, NO_BANK,
                                                     PC87360_REG_FAN_STATUS(i),
@@ -1418,9 +1401,53 @@ static struct pc87360_data *pc87360_update_device(struct device *dev)
         return data;
 }
 
+static int __init pc87360_device_add(unsigned short address)
+{
+        struct resource res = {
+                .name   = "pc87360",
+                .flags  = IORESOURCE_IO,
+        };
+        int err, i;
+
+        pdev = platform_device_alloc("pc87360", address);
+        if (!pdev) {
+                err = -ENOMEM;
+                printk(KERN_ERR "pc87360: Device allocation failed\n");
+                goto exit;
+        }
+
+        for (i = 0; i < 3; i++) {
+                if (!extra_isa[i])
+                        continue;
+                res.start = extra_isa[i];
+                res.end = extra_isa[i] + PC87360_EXTENT - 1;
+                err = platform_device_add_resources(pdev, &res, 1);
+                if (err) {
+                        printk(KERN_ERR "pc87360: Device resource[%d] "
+                               "addition failed (%d)\n", i, err);
+                        goto exit_device_put;
+                }
+        }
+
+        err = platform_device_add(pdev);
+        if (err) {
+                printk(KERN_ERR "pc87360: 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 pc87360_init(void)
 {
-        int i;
+        int err, i;
+        unsigned short address = 0;
 
         if (pc87360_find(0x2e, &devid, extra_isa)
          && pc87360_find(0x4e, &devid, extra_isa)) {
@@ -1443,12 +1470,27 @@ static int __init pc87360_init(void)
                 return -ENODEV;
         }
 
-        return i2c_isa_add_driver(&pc87360_driver);
+        err = platform_driver_register(&pc87360_driver);
+        if (err)
+                goto exit;
+
+        /* Sets global pdev as a side effect */
+        err = pc87360_device_add(address);
+        if (err)
+                goto exit_driver;
+
+        return 0;
+
+ exit_driver:
+        platform_driver_unregister(&pc87360_driver);
+ exit:
+        return err;
 }
 
 static void __exit pc87360_exit(void)
 {
-        i2c_isa_del_driver(&pc87360_driver);
+        platform_device_unregister(pdev);
+        platform_driver_unregister(&pc87360_driver);
 }