10 files changed, 340 insertions, 445 deletions

diff --git a/drivers/i2c/busses/i2c-amd756-s4882.c b/drivers/i2c/busses/i2c-amd756-s4882.c
index 2f150e33c74c..72872d1e63ef 100644
--- a/drivers/i2c/busses/i2c-amd756-s4882.c
+++ b/drivers/i2c/busses/i2c-amd756-s4882.c
@@ -155,6 +155,16 @@ static int __init amd756_s4882_init(void)
         int i, error;
         union i2c_smbus_data ioconfig;
 
+        /* Configure the PCA9556 multiplexer */
+        ioconfig.byte = 0x00; /* All I/O to output mode */
+        error = i2c_smbus_xfer(&amd756_smbus, 0x18, 0, I2C_SMBUS_WRITE, 0x03,
+                               I2C_SMBUS_BYTE_DATA, &ioconfig);
+        if (error) {
+                dev_err(&amd756_smbus.dev, "PCA9556 configuration failed\n");
+                error = -EIO;
+                goto ERROR0;
+        }
+
         /* Unregister physical bus */
         error = i2c_del_adapter(&amd756_smbus);
         if (error) {
@@ -198,22 +208,11 @@ static int __init amd756_s4882_init(void)
         s4882_algo[3].smbus_xfer = amd756_access_virt3;
         s4882_algo[4].smbus_xfer = amd756_access_virt4;
 
-        /* Configure the PCA9556 multiplexer */
-        ioconfig.byte = 0x00; /* All I/O to output mode */
-        error = amd756_smbus.algo->smbus_xfer(&amd756_smbus, 0x18, 0,
-                                              I2C_SMBUS_WRITE, 0x03,
-                                              I2C_SMBUS_BYTE_DATA, &ioconfig);
-        if (error) {
-                dev_err(&amd756_smbus.dev, "PCA9556 configuration failed\n");
-                error = -EIO;
-                goto ERROR3;
-        }
-
         /* Register virtual adapters */
         for (i = 0; i < 5; i++) {
                 error = i2c_add_adapter(s4882_adapter+i);
                 if (error) {
-                        dev_err(&amd756_smbus.dev,
+                        printk(KERN_ERR "i2c-amd756-s4882: "
                                "Virtual adapter %d registration "
                                "failed, module not inserted\n", i);
                         for (i--; i >= 0; i--)
@@ -252,8 +251,8 @@ static void __exit amd756_s4882_exit(void)
 
         /* Restore physical bus */
         if (i2c_add_adapter(&amd756_smbus))
-                dev_err(&amd756_smbus.dev, "Physical bus restoration "
-                        "failed\n");
+                printk(KERN_ERR "i2c-amd756-s4882: "
+                       "Physical bus restoration failed\n");
 }
 
 MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c
index 10b9342a36c2..27443f073bc9 100644
--- a/drivers/i2c/busses/i2c-mpc.c
+++ b/drivers/i2c/busses/i2c-mpc.c
@@ -17,7 +17,8 @@
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/init.h>
-#include <linux/platform_device.h>
+#include <linux/of_platform.h>
+#include <linux/of_i2c.h>
 
 #include <asm/io.h>
 #include <linux/fsl_devices.h>
@@ -25,13 +26,13 @@
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 
-#define MPC_I2C_ADDR  0x00
+#define DRV_NAME "mpc-i2c"
+
 #define MPC_I2C_FDR     0x04
 #define MPC_I2C_CR      0x08
 #define MPC_I2C_SR      0x0c
 #define MPC_I2C_DR      0x10
 #define MPC_I2C_DFSRR 0x14
-#define MPC_I2C_REGION 0x20
 
 #define CCR_MEN  0x80
 #define CCR_MIEN 0x40
@@ -315,102 +316,117 @@ static struct i2c_adapter mpc_ops = {
         .timeout = 1,
 };
 
-static int fsl_i2c_probe(struct platform_device *pdev)
+static int __devinit fsl_i2c_probe(struct of_device *op, const struct of_device_id *match)
 {
         int result = 0;
         struct mpc_i2c *i2c;
-        struct fsl_i2c_platform_data *pdata;
-        struct resource *r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-
-        pdata = (struct fsl_i2c_platform_data *) pdev->dev.platform_data;
 
         i2c = kzalloc(sizeof(*i2c), GFP_KERNEL);
         if (!i2c)
                 return -ENOMEM;
 
-        i2c->irq = platform_get_irq(pdev, 0);
-        if (i2c->irq < 0)
-                i2c->irq = NO_IRQ; /* Use polling */
+        if (of_get_property(op->node, "dfsrr", NULL))
+                i2c->flags |= FSL_I2C_DEV_SEPARATE_DFSRR;
 
-        i2c->flags = pdata->device_flags;
-        init_waitqueue_head(&i2c->queue);
+        if (of_device_is_compatible(op->node, "fsl,mpc5200-i2c") ||
+                        of_device_is_compatible(op->node, "mpc5200-i2c"))
+                i2c->flags |= FSL_I2C_DEV_CLOCK_5200;
 
-        i2c->base = ioremap((phys_addr_t)r->start, MPC_I2C_REGION);
+        init_waitqueue_head(&i2c->queue);
 
+        i2c->base = of_iomap(op->node, 0);
         if (!i2c->base) {
                 printk(KERN_ERR "i2c-mpc - failed to map controller\n");
                 result = -ENOMEM;
                 goto fail_map;
         }
 
-        if (i2c->irq != NO_IRQ)
-                if ((result = request_irq(i2c->irq, mpc_i2c_isr,
-                                          IRQF_SHARED, "i2c-mpc", i2c)) < 0) {
-                        printk(KERN_ERR
-                               "i2c-mpc - failed to attach interrupt\n");
-                        goto fail_irq;
+        i2c->irq = irq_of_parse_and_map(op->node, 0);
+        if (i2c->irq != NO_IRQ) { /* i2c->irq = NO_IRQ implies polling */
+                result = request_irq(i2c->irq, mpc_i2c_isr,
+                                     IRQF_SHARED, "i2c-mpc", i2c);
+                if (result < 0) {
+                        printk(KERN_ERR "i2c-mpc - failed to attach interrupt\n");
+                        goto fail_request;
                 }
-
+        }
+        
         mpc_i2c_setclock(i2c);
-        platform_set_drvdata(pdev, i2c);
+
+        dev_set_drvdata(&op->dev, i2c);
 
         i2c->adap = mpc_ops;
-        i2c->adap.nr = pdev->id;
         i2c_set_adapdata(&i2c->adap, i2c);
-        i2c->adap.dev.parent = &pdev->dev;
-        if ((result = i2c_add_numbered_adapter(&i2c->adap)) < 0) {
+        i2c->adap.dev.parent = &op->dev;
+
+        result = i2c_add_adapter(&i2c->adap);
+        if (result < 0) {
                 printk(KERN_ERR "i2c-mpc - failed to add adapter\n");
                 goto fail_add;
         }
+        of_register_i2c_devices(&i2c->adap, op->node);
 
         return result;
 
-      fail_add:
-        if (i2c->irq != NO_IRQ)
-                free_irq(i2c->irq, i2c);
-      fail_irq:
-        iounmap(i2c->base);
-      fail_map:
+ fail_add:
+        dev_set_drvdata(&op->dev, NULL);
+        free_irq(i2c->irq, i2c);
+ fail_request:
+        irq_dispose_mapping(i2c->irq);
+        iounmap(i2c->base);
+ fail_map:
         kfree(i2c);
         return result;
 };
 
-static int fsl_i2c_remove(struct platform_device *pdev)
+static int __devexit fsl_i2c_remove(struct of_device *op)
 {
-        struct mpc_i2c *i2c = platform_get_drvdata(pdev);
+        struct mpc_i2c *i2c = dev_get_drvdata(&op->dev);
 
         i2c_del_adapter(&i2c->adap);
-        platform_set_drvdata(pdev, NULL);
+        dev_set_drvdata(&op->dev, NULL);
 
         if (i2c->irq != NO_IRQ)
                 free_irq(i2c->irq, i2c);
 
+        irq_dispose_mapping(i2c->irq);
         iounmap(i2c->base);
         kfree(i2c);
         return 0;
 };
 
-/* work with hotplug and coldplug */
-MODULE_ALIAS("platform:fsl-i2c");
+static const struct of_device_id mpc_i2c_of_match[] = {
+        {.compatible = "fsl-i2c",},
+        {},
+};
+MODULE_DEVICE_TABLE(of, mpc_i2c_of_match);
+
 
 /* Structure for a device driver */
-static struct platform_driver fsl_i2c_driver = {
-        .probe = fsl_i2c_probe,
-        .remove = fsl_i2c_remove,
-        .driver = {
-                .owner = THIS_MODULE,
-                .name = "fsl-i2c",
+static struct of_platform_driver mpc_i2c_driver = {
+        .match_table    = mpc_i2c_of_match,
+        .probe          = fsl_i2c_probe,
+        .remove         = __devexit_p(fsl_i2c_remove),
+        .driver         = {
+                .owner  = THIS_MODULE,
+                .name   = DRV_NAME,
         },
 };
 
 static int __init fsl_i2c_init(void)
 {
-        return platform_driver_register(&fsl_i2c_driver);
+        int rv;
+
+        rv = of_register_platform_driver(&mpc_i2c_driver);
+        if (rv)
+                printk(KERN_ERR DRV_NAME 
+                       " of_register_platform_driver failed (%i)\n", rv);
+        return rv;
 }
 
 static void __exit fsl_i2c_exit(void)
 {
-        platform_driver_unregister(&fsl_i2c_driver);
+        of_unregister_platform_driver(&mpc_i2c_driver);
 }
 
 module_init(fsl_i2c_init);
diff --git a/drivers/i2c/busses/i2c-nforce2-s4985.c b/drivers/i2c/busses/i2c-nforce2-s4985.c
index 6a8995dfd0bb..d1a4cbcf2aa4 100644
--- a/drivers/i2c/busses/i2c-nforce2-s4985.c
+++ b/drivers/i2c/busses/i2c-nforce2-s4985.c
@@ -150,6 +150,16 @@ static int __init nforce2_s4985_init(void)
         int i, error;
         union i2c_smbus_data ioconfig;
 
+        /* Configure the PCA9556 multiplexer */
+        ioconfig.byte = 0x00; /* All I/O to output mode */
+        error = i2c_smbus_xfer(nforce2_smbus, 0x18, 0, I2C_SMBUS_WRITE, 0x03,
+                               I2C_SMBUS_BYTE_DATA, &ioconfig);
+        if (error) {
+                dev_err(&nforce2_smbus->dev, "PCA9556 configuration failed\n");
+                error = -EIO;
+                goto ERROR0;
+        }
+
         /* Unregister physical bus */
         if (!nforce2_smbus)
                 return -ENODEV;
@@ -191,24 +201,13 @@ static int __init nforce2_s4985_init(void)
         s4985_algo[3].smbus_xfer = nforce2_access_virt3;
         s4985_algo[4].smbus_xfer = nforce2_access_virt4;
 
-        /* Configure the PCA9556 multiplexer */
-        ioconfig.byte = 0x00; /* All I/O to output mode */
-        error = nforce2_smbus->algo->smbus_xfer(nforce2_smbus, 0x18, 0,
-                                                I2C_SMBUS_WRITE, 0x03,
-                                                I2C_SMBUS_BYTE_DATA, &ioconfig);
-        if (error) {
-                dev_err(&nforce2_smbus->dev, "PCA9556 configuration failed\n");
-                error = -EIO;
-                goto ERROR3;
-        }
-
         /* Register virtual adapters */
         for (i = 0; i < 5; i++) {
                 error = i2c_add_adapter(s4985_adapter + i);
                 if (error) {
-                        dev_err(&nforce2_smbus->dev,
-                                "Virtual adapter %d registration "
-                                "failed, module not inserted\n", i);
+                        printk(KERN_ERR "i2c-nforce2-s4985: "
+                               "Virtual adapter %d registration "
+                               "failed, module not inserted\n", i);
                         for (i--; i >= 0; i--)
                                 i2c_del_adapter(s4985_adapter + i);
                         goto ERROR3;
@@ -245,8 +244,8 @@ static void __exit nforce2_s4985_exit(void)
 
         /* Restore physical bus */
         if (i2c_add_adapter(nforce2_smbus))
-                dev_err(&nforce2_smbus->dev, "Physical bus restoration "
-                        "failed\n");
+                printk(KERN_ERR "i2c-nforce2-s4985: "
+                       "Physical bus restoration failed\n");
 }
 
 MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
diff --git a/drivers/i2c/chips/eeprom.c b/drivers/i2c/chips/eeprom.c
index 373ea8d8fe8f..2c27193aeaa0 100644
--- a/drivers/i2c/chips/eeprom.c
+++ b/drivers/i2c/chips/eeprom.c
@@ -47,7 +47,6 @@ enum eeprom_nature {
 
 /* Each client has this additional data */
 struct eeprom_data {
-        struct i2c_client client;
         struct mutex update_lock;
         u8 valid;                       /* bitfield, bit!=0 if slice is valid */
         unsigned long last_updated[8];  /* In jiffies, 8 slices */
@@ -56,19 +55,6 @@ struct eeprom_data {
 };
 
 
-static int eeprom_attach_adapter(struct i2c_adapter *adapter);
-static int eeprom_detect(struct i2c_adapter *adapter, int address, int kind);
-static int eeprom_detach_client(struct i2c_client *client);
-
-/* This is the driver that will be inserted */
-static struct i2c_driver eeprom_driver = {
-        .driver = {
-                .name   = "eeprom",
-        },
-        .attach_adapter = eeprom_attach_adapter,
-        .detach_client  = eeprom_detach_client,
-};
-
 static void eeprom_update_client(struct i2c_client *client, u8 slice)
 {
         struct eeprom_data *data = i2c_get_clientdata(client);
@@ -148,25 +134,17 @@ static struct bin_attribute eeprom_attr = {
         .read = eeprom_read,
 };
 
-static int eeprom_attach_adapter(struct i2c_adapter *adapter)
-{
-        if (!(adapter->class & (I2C_CLASS_DDC | I2C_CLASS_SPD)))
-                return 0;
-        return i2c_probe(adapter, &addr_data, eeprom_detect);
-}
-
-/* This function is called by i2c_probe */
-static int eeprom_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int eeprom_detect(struct i2c_client *client, int kind,
+                         struct i2c_board_info *info)
 {
-        struct i2c_client *client;
-        struct eeprom_data *data;
-        int err = 0;
+        struct i2c_adapter *adapter = client->adapter;
 
         /* EDID EEPROMs are often 24C00 EEPROMs, which answer to all
            addresses 0x50-0x57, but we only care about 0x50. So decline
            attaching to addresses >= 0x51 on DDC buses */
-        if (!(adapter->class & I2C_CLASS_SPD) && address >= 0x51)
-                goto exit;
+        if (!(adapter->class & I2C_CLASS_SPD) && client->addr >= 0x51)
+                return -ENODEV;
 
         /* There are four ways we can read the EEPROM data:
            (1) I2C block reads (faster, but unsupported by most adapters)
@@ -177,32 +155,33 @@ static int eeprom_detect(struct i2c_adapter *adapter, int address, int kind)
            because all known adapters support one of the first two. */
         if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_WORD_DATA)
          && !i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_I2C_BLOCK))
-                goto exit;
+                return -ENODEV;
+
+        strlcpy(info->type, "eeprom", I2C_NAME_SIZE);
+
+        return 0;
+}
+
+static int eeprom_probe(struct i2c_client *client,
+                        const struct i2c_device_id *id)
+{
+        struct i2c_adapter *adapter = client->adapter;
+        struct eeprom_data *data;
+        int err;
 
         if (!(data = kzalloc(sizeof(struct eeprom_data), GFP_KERNEL))) {
                 err = -ENOMEM;
                 goto exit;
         }
 
-        client = &data->client;
         memset(data->data, 0xff, EEPROM_SIZE);
         i2c_set_clientdata(client, data);
-        client->addr = address;
-        client->adapter = adapter;
-        client->driver = &eeprom_driver;
-
-        /* Fill in the remaining client fields */
-        strlcpy(client->name, "eeprom", I2C_NAME_SIZE);
         mutex_init(&data->update_lock);
         data->nature = UNKNOWN;
 
-        /* Tell the I2C layer a new client has arrived */
-        if ((err = i2c_attach_client(client)))
-                goto exit_kfree;
-
         /* Detect the Vaio nature of EEPROMs.
            We use the "PCG-" or "VGN-" prefix as the signature. */
-        if (address == 0x57
+        if (client->addr == 0x57
          && i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_BYTE_DATA)) {
                 char name[4];
 
@@ -221,33 +200,42 @@ static int eeprom_detect(struct i2c_adapter *adapter, int address, int kind)
         /* create the sysfs eeprom file */
         err = sysfs_create_bin_file(&client->dev.kobj, &eeprom_attr);
         if (err)
-                goto exit_detach;
+                goto exit_kfree;
 
         return 0;
 
-exit_detach:
-        i2c_detach_client(client);
 exit_kfree:
         kfree(data);
 exit:
         return err;
 }
 
-static int eeprom_detach_client(struct i2c_client *client)
+static int eeprom_remove(struct i2c_client *client)
 {
-        int err;
-
         sysfs_remove_bin_file(&client->dev.kobj, &eeprom_attr);
-
-        err = i2c_detach_client(client);
-        if (err)
-                return err;
-
         kfree(i2c_get_clientdata(client));
 
         return 0;
 }
 
+static const struct i2c_device_id eeprom_id[] = {
+        { "eeprom", 0 },
+        { }
+};
+
+static struct i2c_driver eeprom_driver = {
+        .driver = {
+                .name   = "eeprom",
+        },
+        .probe          = eeprom_probe,
+        .remove         = eeprom_remove,
+        .id_table       = eeprom_id,
+
+        .class          = I2C_CLASS_DDC | I2C_CLASS_SPD,
+        .detect         = eeprom_detect,
+        .address_data   = &addr_data,
+};
+
 static int __init eeprom_init(void)
 {
         return i2c_add_driver(&eeprom_driver);
diff --git a/drivers/i2c/chips/max6875.c b/drivers/i2c/chips/max6875.c
index 5a0285d8b6f9..033d9d81ec8a 100644
--- a/drivers/i2c/chips/max6875.c
+++ b/drivers/i2c/chips/max6875.c
@@ -53,7 +53,7 @@ I2C_CLIENT_INSMOD_1(max6875);
 
 /* Each client has this additional data */
 struct max6875_data {
-        struct i2c_client       client;
+        struct i2c_client       *fake_client;
         struct mutex            update_lock;
 
         u32                     valid;
@@ -61,19 +61,6 @@ struct max6875_data {
         unsigned long           last_updated[USER_EEPROM_SLICES];
 };
 
-static int max6875_attach_adapter(struct i2c_adapter *adapter);
-static int max6875_detect(struct i2c_adapter *adapter, int address, int kind);
-static int max6875_detach_client(struct i2c_client *client);
-
-/* This is the driver that will be inserted */
-static struct i2c_driver max6875_driver = {
-        .driver = {
-                .name   = "max6875",
-        },
-        .attach_adapter = max6875_attach_adapter,
-        .detach_client  = max6875_detach_client,
-};
-
 static void max6875_update_slice(struct i2c_client *client, int slice)
 {
         struct max6875_data *data = i2c_get_clientdata(client);
@@ -159,96 +146,87 @@ static struct bin_attribute user_eeprom_attr = {
         .read = max6875_read,
 };
 
-static int max6875_attach_adapter(struct i2c_adapter *adapter)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int max6875_detect(struct i2c_client *client, int kind,
+                          struct i2c_board_info *info)
 {
-        return i2c_probe(adapter, &addr_data, max6875_detect);
-}
-
-/* This function is called by i2c_probe */
-static int max6875_detect(struct i2c_adapter *adapter, int address, int kind)
-{
-        struct i2c_client *real_client;
-        struct i2c_client *fake_client;
-        struct max6875_data *data;
-        int err;
+        struct i2c_adapter *adapter = client->adapter;
 
         if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WRITE_BYTE_DATA
                                      | I2C_FUNC_SMBUS_READ_BYTE))
-                return 0;
+                return -ENODEV;
 
         /* Only check even addresses */
-        if (address & 1)
-                return 0;
+        if (client->addr & 1)
+                return -ENODEV;
+
+        strlcpy(info->type, "max6875", I2C_NAME_SIZE);
+
+        return 0;
+}
+
+static int max6875_probe(struct i2c_client *client,
+                         const struct i2c_device_id *id)
+{
+        struct max6875_data *data;
+        int err;
 
         if (!(data = kzalloc(sizeof(struct max6875_data), GFP_KERNEL)))
                 return -ENOMEM;
 
         /* A fake client is created on the odd address */
-        if (!(fake_client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL))) {
+        data->fake_client = i2c_new_dummy(client->adapter, client->addr + 1);
+        if (!data->fake_client) {
                 err = -ENOMEM;
-                goto exit_kfree1;
+                goto exit_kfree;
         }
 
         /* Init real i2c_client */
-        real_client = &data->client;
-        i2c_set_clientdata(real_client, data);
-        real_client->addr = address;
-        real_client->adapter = adapter;
-        real_client->driver = &max6875_driver;
-        strlcpy(real_client->name, "max6875", I2C_NAME_SIZE);
+        i2c_set_clientdata(client, data);
         mutex_init(&data->update_lock);
 
-        /* Init fake client data */
-        i2c_set_clientdata(fake_client, NULL);
-        fake_client->addr = address | 1;
-        fake_client->adapter = adapter;
-        fake_client->driver = &max6875_driver;
-        strlcpy(fake_client->name, "max6875 subclient", I2C_NAME_SIZE);
-
-        if ((err = i2c_attach_client(real_client)) != 0)
-                goto exit_kfree2;
-
-        if ((err = i2c_attach_client(fake_client)) != 0)
-                goto exit_detach1;
-
-        err = sysfs_create_bin_file(&real_client->dev.kobj, &user_eeprom_attr);
+        err = sysfs_create_bin_file(&client->dev.kobj, &user_eeprom_attr);
         if (err)
-                goto exit_detach2;
+                goto exit_remove_fake;
 
         return 0;
 
-exit_detach2:
-        i2c_detach_client(fake_client);
-exit_detach1:
-        i2c_detach_client(real_client);
-exit_kfree2:
-        kfree(fake_client);
-exit_kfree1:
+exit_remove_fake:
+        i2c_unregister_device(data->fake_client);
+exit_kfree:
         kfree(data);
         return err;
 }
 
-/* Will be called for both the real client and the fake client */
-static int max6875_detach_client(struct i2c_client *client)
+static int max6875_remove(struct i2c_client *client)
 {
-        int err;
         struct max6875_data *data = i2c_get_clientdata(client);
 
-        /* data is NULL for the fake client */
-        if (data)
-                sysfs_remove_bin_file(&client->dev.kobj, &user_eeprom_attr);
+        i2c_unregister_device(data->fake_client);
 
-        err = i2c_detach_client(client);
-        if (err)
-                return err;
+        sysfs_remove_bin_file(&client->dev.kobj, &user_eeprom_attr);
+        kfree(data);
 
-        if (data)               /* real client */
-                kfree(data);
-        else                    /* fake client */
-                kfree(client);
         return 0;
 }
 
+static const struct i2c_device_id max6875_id[] = {
+        { "max6875", 0 },
+        { }
+};
+
+static struct i2c_driver max6875_driver = {
+        .driver = {
+                .name   = "max6875",
+        },
+        .probe          = max6875_probe,
+        .remove         = max6875_remove,
+        .id_table       = max6875_id,
+
+        .detect         = max6875_detect,
+        .address_data   = &addr_data,
+};
+
 static int __init max6875_init(void)
 {
         return i2c_add_driver(&max6875_driver);
diff --git a/drivers/i2c/chips/pca9539.c b/drivers/i2c/chips/pca9539.c
index 58ab7f26be26..270de4e56a81 100644
--- a/drivers/i2c/chips/pca9539.c
+++ b/drivers/i2c/chips/pca9539.c
@@ -14,8 +14,8 @@
 #include <linux/i2c.h>
 #include <linux/hwmon-sysfs.h>
 
-/* Addresses to scan */
-static unsigned short normal_i2c[] = {0x74, 0x75, 0x76, 0x77, I2C_CLIENT_END};
+/* Addresses to scan: none, device is not autodetected */
+static const unsigned short normal_i2c[] = { I2C_CLIENT_END };
 
 /* Insmod parameters */
 I2C_CLIENT_INSMOD_1(pca9539);
@@ -32,23 +32,6 @@ enum pca9539_cmd
         PCA9539_DIRECTION_1     = 7,
 };
 
-static int pca9539_attach_adapter(struct i2c_adapter *adapter);
-static int pca9539_detect(struct i2c_adapter *adapter, int address, int kind);
-static int pca9539_detach_client(struct i2c_client *client);
-
-/* This is the driver that will be inserted */
-static struct i2c_driver pca9539_driver = {
-        .driver = {
-                .name   = "pca9539",
-        },
-        .attach_adapter = pca9539_attach_adapter,
-        .detach_client  = pca9539_detach_client,
-};
-
-struct pca9539_data {
-        struct i2c_client client;
-};
-
 /* following are the sysfs callback functions */
 static ssize_t pca9539_show(struct device *dev, struct device_attribute *attr,
                             char *buf)
@@ -105,77 +88,51 @@ static struct attribute_group pca9539_defattr_group = {
         .attrs = pca9539_attributes,
 };
 
-static int pca9539_attach_adapter(struct i2c_adapter *adapter)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int pca9539_detect(struct i2c_client *client, int kind,
+                          struct i2c_board_info *info)
 {
-        return i2c_probe(adapter, &addr_data, pca9539_detect);
-}
-
-/* This function is called by i2c_probe */
-static int pca9539_detect(struct i2c_adapter *adapter, int address, int kind)
-{
-        struct i2c_client *client;
-        struct pca9539_data *data;
-        int err = 0;
+        struct i2c_adapter *adapter = client->adapter;
 
         if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
-                goto exit;
-
-        /* OK. For now, we presume we have a valid client. We now create the
-           client structure, even though we cannot fill it completely yet. */
-        if (!(data = kzalloc(sizeof(struct pca9539_data), GFP_KERNEL))) {
-                err = -ENOMEM;
-                goto exit;
-        }
-
-        client = &data->client;
-        i2c_set_clientdata(client, data);
-        client->addr = address;
-        client->adapter = adapter;
-        client->driver = &pca9539_driver;
-
-        if (kind < 0) {
-                /* Detection: the pca9539 only has 8 registers (0-7).
-                   A read of 7 should succeed, but a read of 8 should fail. */
-                if ((i2c_smbus_read_byte_data(client, 7) < 0) ||
-                    (i2c_smbus_read_byte_data(client, 8) >= 0))
-                        goto exit_kfree;
-        }
-
-        strlcpy(client->name, "pca9539", I2C_NAME_SIZE);
-
-        /* Tell the I2C layer a new client has arrived */
-        if ((err = i2c_attach_client(client)))
-                goto exit_kfree;
+                return -ENODEV;
 
-        /* Register sysfs hooks */
-        err = sysfs_create_group(&client->dev.kobj,
-                                 &pca9539_defattr_group);
-        if (err)
-                goto exit_detach;
+        strlcpy(info->type, "pca9539", I2C_NAME_SIZE);
 
         return 0;
-
-exit_detach:
-        i2c_detach_client(client);
-exit_kfree:
-        kfree(data);
-exit:
-        return err;
 }
 
-static int pca9539_detach_client(struct i2c_client *client)
+static int pca9539_probe(struct i2c_client *client,
+                         const struct i2c_device_id *id)
 {
-        int err;
+        /* Register sysfs hooks */
+        return sysfs_create_group(&client->dev.kobj,
+                                  &pca9539_defattr_group);
+}
 
+static int pca9539_remove(struct i2c_client *client)
+{
         sysfs_remove_group(&client->dev.kobj, &pca9539_defattr_group);
-
-        if ((err = i2c_detach_client(client)))
-                return err;
-
-        kfree(i2c_get_clientdata(client));
         return 0;
 }
 
+static const struct i2c_device_id pca9539_id[] = {
+        { "pca9539", 0 },
+        { }
+};
+
+static struct i2c_driver pca9539_driver = {
+        .driver = {
+                .name   = "pca9539",
+        },
+        .probe          = pca9539_probe,
+        .remove         = pca9539_remove,
+        .id_table       = pca9539_id,
+
+        .detect         = pca9539_detect,
+        .address_data   = &addr_data,
+};
+
 static int __init pca9539_init(void)
 {
         return i2c_add_driver(&pca9539_driver);
diff --git a/drivers/i2c/chips/pcf8574.c b/drivers/i2c/chips/pcf8574.c
index 1b3db2b3ada9..6ec309894c88 100644
--- a/drivers/i2c/chips/pcf8574.c
+++ b/drivers/i2c/chips/pcf8574.c
@@ -38,37 +38,19 @@
 #include <linux/slab.h>
 #include <linux/i2c.h>
 
-/* Addresses to scan */
-static const unsigned short normal_i2c[] = {
-        0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
-        0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
-        I2C_CLIENT_END
-};
+/* Addresses to scan: none, device can't be detected */
+static const unsigned short normal_i2c[] = { I2C_CLIENT_END };
 
 /* Insmod parameters */
 I2C_CLIENT_INSMOD_2(pcf8574, pcf8574a);
 
 /* Each client has this additional data */
 struct pcf8574_data {
-        struct i2c_client client;
-
         int write;                      /* Remember last written value */
 };
 
-static int pcf8574_attach_adapter(struct i2c_adapter *adapter);
-static int pcf8574_detect(struct i2c_adapter *adapter, int address, int kind);
-static int pcf8574_detach_client(struct i2c_client *client);
 static void pcf8574_init_client(struct i2c_client *client);
 
-/* This is the driver that will be inserted */
-static struct i2c_driver pcf8574_driver = {
-        .driver = {
-                .name   = "pcf8574",
-        },
-        .attach_adapter = pcf8574_attach_adapter,
-        .detach_client  = pcf8574_detach_client,
-};
-
 /* following are the sysfs callback functions */
 static ssize_t show_read(struct device *dev, struct device_attribute *attr, char *buf)
 {
@@ -119,41 +101,22 @@ static const struct attribute_group pcf8574_attr_group = {
  * Real code
  */
 
-static int pcf8574_attach_adapter(struct i2c_adapter *adapter)
-{
-        return i2c_probe(adapter, &addr_data, pcf8574_detect);
-}
-
-/* This function is called by i2c_probe */
-static int pcf8574_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int pcf8574_detect(struct i2c_client *client, int kind,
+                          struct i2c_board_info *info)
 {
-        struct i2c_client *client;
-        struct pcf8574_data *data;
-        int err = 0;
-        const char *client_name = "";
+        struct i2c_adapter *adapter = client->adapter;
+        const char *client_name;
 
         if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE))
-                goto exit;
-
-        /* OK. For now, we presume we have a valid client. We now create the
-           client structure, even though we cannot fill it completely yet. */
-        if (!(data = kzalloc(sizeof(struct pcf8574_data), GFP_KERNEL))) {
-                err = -ENOMEM;
-                goto exit;
-        }
-
-        client = &data->client;
-        i2c_set_clientdata(client, data);
-        client->addr = address;
-        client->adapter = adapter;
-        client->driver = &pcf8574_driver;
+                return -ENODEV;
 
         /* Now, we would do the remaining detection. But the PCF8574 is plainly
            impossible to detect! Stupid chip. */
 
         /* Determine the chip type */
         if (kind <= 0) {
-                if (address >= 0x38 && address <= 0x3f)
+                if (client->addr >= 0x38 && client->addr <= 0x3f)
                         kind = pcf8574a;
                 else
                         kind = pcf8574;
@@ -163,40 +126,43 @@ static int pcf8574_detect(struct i2c_adapter *adapter, int address, int kind)
                 client_name = "pcf8574a";
         else
                 client_name = "pcf8574";
+        strlcpy(info->type, client_name, I2C_NAME_SIZE);
 
-        /* Fill in the remaining client fields and put it into the global list */
-        strlcpy(client->name, client_name, I2C_NAME_SIZE);
+        return 0;
+}
+
+static int pcf8574_probe(struct i2c_client *client,
+                         const struct i2c_device_id *id)
+{
+        struct pcf8574_data *data;
+        int err;
+
+        data = kzalloc(sizeof(struct pcf8574_data), GFP_KERNEL);
+        if (!data) {
+                err = -ENOMEM;
+                goto exit;
+        }
+
+        i2c_set_clientdata(client, data);
 
-        /* Tell the I2C layer a new client has arrived */
-        if ((err = i2c_attach_client(client)))
-                goto exit_free;
-        
         /* Initialize the PCF8574 chip */
         pcf8574_init_client(client);
 
         /* Register sysfs hooks */
         err = sysfs_create_group(&client->dev.kobj, &pcf8574_attr_group);
         if (err)
-                goto exit_detach;
+                goto exit_free;
         return 0;
 
-      exit_detach:
-        i2c_detach_client(client);
       exit_free:
         kfree(data);
       exit:
         return err;
 }
 
-static int pcf8574_detach_client(struct i2c_client *client)
+static int pcf8574_remove(struct i2c_client *client)
 {
-        int err;
-
         sysfs_remove_group(&client->dev.kobj, &pcf8574_attr_group);
-
-        if ((err = i2c_detach_client(client)))
-                return err;
-
         kfree(i2c_get_clientdata(client));
         return 0;
 }
@@ -208,6 +174,24 @@ static void pcf8574_init_client(struct i2c_client *client)
         data->write = -EAGAIN;
 }
 
+static const struct i2c_device_id pcf8574_id[] = {
+        { "pcf8574", 0 },
+        { "pcf8574a", 0 },
+        { }
+};
+
+static struct i2c_driver pcf8574_driver = {
+        .driver = {
+                .name   = "pcf8574",
+        },
+        .probe          = pcf8574_probe,
+        .remove         = pcf8574_remove,
+        .id_table       = pcf8574_id,
+
+        .detect         = pcf8574_detect,
+        .address_data   = &addr_data,
+};
+
 static int __init pcf8574_init(void)
 {
         return i2c_add_driver(&pcf8574_driver);
diff --git a/drivers/i2c/chips/pcf8575.c b/drivers/i2c/chips/pcf8575.c
index 3ea08ac0bfa3..07fd7cb3c57d 100644
--- a/drivers/i2c/chips/pcf8575.c
+++ b/drivers/i2c/chips/pcf8575.c
@@ -32,11 +32,8 @@
 #include <linux/slab.h>  /* kzalloc() */
 #include <linux/sysfs.h> /* sysfs_create_group() */
 
-/* Addresses to scan */
-static const unsigned short normal_i2c[] = {
-        0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
-        I2C_CLIENT_END
-};
+/* Addresses to scan: none, device can't be detected */
+static const unsigned short normal_i2c[] = { I2C_CLIENT_END };
 
 /* Insmod parameters */
 I2C_CLIENT_INSMOD;
@@ -44,24 +41,9 @@ I2C_CLIENT_INSMOD;
 
 /* Each client has this additional data */
 struct pcf8575_data {
-        struct i2c_client client;
         int write;              /* last written value, or error code */
 };
 
-static int pcf8575_attach_adapter(struct i2c_adapter *adapter);
-static int pcf8575_detect(struct i2c_adapter *adapter, int address, int kind);
-static int pcf8575_detach_client(struct i2c_client *client);
-
-/* This is the driver that will be inserted */
-static struct i2c_driver pcf8575_driver = {
-        .driver = {
-                .owner  = THIS_MODULE,
-                .name   = "pcf8575",
-        },
-        .attach_adapter = pcf8575_attach_adapter,
-        .detach_client  = pcf8575_detach_client,
-};
-
 /* following are the sysfs callback functions */
 static ssize_t show_read(struct device *dev, struct device_attribute *attr,
                          char *buf)
@@ -126,75 +108,77 @@ static const struct attribute_group pcf8575_attr_group = {
  * Real code
  */
 
-static int pcf8575_attach_adapter(struct i2c_adapter *adapter)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int pcf8575_detect(struct i2c_client *client, int kind,
+                          struct i2c_board_info *info)
 {
-        return i2c_probe(adapter, &addr_data, pcf8575_detect);
+        struct i2c_adapter *adapter = client->adapter;
+
+        if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))
+                return -ENODEV;
+
+        /* This is the place to detect whether the chip at the specified
+           address really is a PCF8575 chip. However, there is no method known
+           to detect whether an I2C chip is a PCF8575 or any other I2C chip. */
+
+        strlcpy(info->type, "pcf8575", I2C_NAME_SIZE);
+
+        return 0;
 }
 
-/* This function is called by i2c_probe */
-static int pcf8575_detect(struct i2c_adapter *adapter, int address, int kind)
+static int pcf8575_probe(struct i2c_client *client,
+                         const struct i2c_device_id *id)
 {
-        struct i2c_client *client;
         struct pcf8575_data *data;
-        int err = 0;
-
-        if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))
-                goto exit;
+        int err;
 
-        /* OK. For now, we presume we have a valid client. We now create the
-           client structure, even though we cannot fill it completely yet. */
         data = kzalloc(sizeof(struct pcf8575_data), GFP_KERNEL);
         if (!data) {
                 err = -ENOMEM;
                 goto exit;
         }
 
-        client = &data->client;
         i2c_set_clientdata(client, data);
-        client->addr = address;
-        client->adapter = adapter;
-        client->driver = &pcf8575_driver;
-        strlcpy(client->name, "pcf8575", I2C_NAME_SIZE);
         data->write = -EAGAIN;
 
-        /* This is the place to detect whether the chip at the specified
-           address really is a PCF8575 chip. However, there is no method known
-           to detect whether an I2C chip is a PCF8575 or any other I2C chip. */
-
-        /* Tell the I2C layer a new client has arrived */
-        err = i2c_attach_client(client);
-        if (err)
-                goto exit_free;
-
         /* Register sysfs hooks */
         err = sysfs_create_group(&client->dev.kobj, &pcf8575_attr_group);
         if (err)
-                goto exit_detach;
+                goto exit_free;
 
         return 0;
 
-exit_detach:
-        i2c_detach_client(client);
 exit_free:
         kfree(data);
 exit:
         return err;
 }
 
-static int pcf8575_detach_client(struct i2c_client *client)
+static int pcf8575_remove(struct i2c_client *client)
 {
-        int err;
-
         sysfs_remove_group(&client->dev.kobj, &pcf8575_attr_group);
-
-        err = i2c_detach_client(client);
-        if (err)
-                return err;
-
         kfree(i2c_get_clientdata(client));
         return 0;
 }
 
+static const struct i2c_device_id pcf8575_id[] = {
+        { "pcf8575", 0 },
+        { }
+};
+
+static struct i2c_driver pcf8575_driver = {
+        .driver = {
+                .owner  = THIS_MODULE,
+                .name   = "pcf8575",
+        },
+        .probe          = pcf8575_probe,
+        .remove         = pcf8575_remove,
+        .id_table       = pcf8575_id,
+
+        .detect         = pcf8575_detect,
+        .address_data   = &addr_data,
+};
+
 static int __init pcf8575_init(void)
 {
         return i2c_add_driver(&pcf8575_driver);
diff --git a/drivers/i2c/chips/pcf8591.c b/drivers/i2c/chips/pcf8591.c
index db735379f22f..16ce3e193776 100644
--- a/drivers/i2c/chips/pcf8591.c
+++ b/drivers/i2c/chips/pcf8591.c
@@ -72,28 +72,15 @@ MODULE_PARM_DESC(input_mode,
 #define REG_TO_SIGNED(reg)      (((reg) & 0x80)?((reg) - 256):(reg))
 
 struct pcf8591_data {
-        struct i2c_client client;
         struct mutex update_lock;
 
         u8 control;
         u8 aout;
 };
 
-static int pcf8591_attach_adapter(struct i2c_adapter *adapter);
-static int pcf8591_detect(struct i2c_adapter *adapter, int address, int kind);
-static int pcf8591_detach_client(struct i2c_client *client);
 static void pcf8591_init_client(struct i2c_client *client);
 static int pcf8591_read_channel(struct device *dev, int channel);
 
-/* This is the driver that will be inserted */
-static struct i2c_driver pcf8591_driver = {
-        .driver = {
-                .name   = "pcf8591",
-        },
-        .attach_adapter = pcf8591_attach_adapter,
-        .detach_client  = pcf8591_detach_client,
-};
-
 /* following are the sysfs callback functions */
 #define show_in_channel(channel)                                        \
 static ssize_t show_in##channel##_input(struct device *dev, struct device_attribute *attr, char *buf)   \
@@ -180,58 +167,46 @@ static const struct attribute_group pcf8591_attr_group_opt = {
 /*
  * Real code
  */
-static int pcf8591_attach_adapter(struct i2c_adapter *adapter)
-{
-        return i2c_probe(adapter, &addr_data, pcf8591_detect);
-}
 
-/* This function is called by i2c_probe */
-static int pcf8591_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int pcf8591_detect(struct i2c_client *client, int kind,
+                          struct i2c_board_info *info)
 {
-        struct i2c_client *client;
-        struct pcf8591_data *data;
-        int err = 0;
+        struct i2c_adapter *adapter = client->adapter;
 
         if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE
                                      | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
-                goto exit;
+                return -ENODEV;
+
+        /* Now, we would do the remaining detection. But the PCF8591 is plainly
+           impossible to detect! Stupid chip. */
+
+        strlcpy(info->type, "pcf8591", I2C_NAME_SIZE);
+
+        return 0;
+}
+
+static int pcf8591_probe(struct i2c_client *client,
+                         const struct i2c_device_id *id)
+{
+        struct pcf8591_data *data;
+        int err;
 
-        /* OK. For now, we presume we have a valid client. We now create the
-           client structure, even though we cannot fill it completely yet. */
         if (!(data = kzalloc(sizeof(struct pcf8591_data), GFP_KERNEL))) {
                 err = -ENOMEM;
                 goto exit;
         }
         
-        client = &data->client;
         i2c_set_clientdata(client, data);
-        client->addr = address;
-        client->adapter = adapter;
-        client->driver = &pcf8591_driver;
-
-        /* Now, we would do the remaining detection. But the PCF8591 is plainly
-           impossible to detect! Stupid chip. */
-
-        /* Determine the chip type - only one kind supported! */
-        if (kind <= 0)
-                kind = pcf8591;
-
-        /* Fill in the remaining client fields and put it into the global 
-           list */
-        strlcpy(client->name, "pcf8591", I2C_NAME_SIZE);
         mutex_init(&data->update_lock);
 
-        /* Tell the I2C layer a new client has arrived */
-        if ((err = i2c_attach_client(client)))
-                goto exit_kfree;
-
         /* Initialize the PCF8591 chip */
         pcf8591_init_client(client);
 
         /* Register sysfs hooks */
         err = sysfs_create_group(&client->dev.kobj, &pcf8591_attr_group);
         if (err)
-                goto exit_detach;
+                goto exit_kfree;
 
         /* Register input2 if not in "two differential inputs" mode */
         if (input_mode != 3) {
@@ -252,24 +227,16 @@ static int pcf8591_detect(struct i2c_adapter *adapter, int address, int kind)
 exit_sysfs_remove:
         sysfs_remove_group(&client->dev.kobj, &pcf8591_attr_group_opt);
         sysfs_remove_group(&client->dev.kobj, &pcf8591_attr_group);
-exit_detach:
-        i2c_detach_client(client);
 exit_kfree:
         kfree(data);
 exit:
         return err;
 }
 
-static int pcf8591_detach_client(struct i2c_client *client)
+static int pcf8591_remove(struct i2c_client *client)
 {
-        int err;
-
         sysfs_remove_group(&client->dev.kobj, &pcf8591_attr_group_opt);
         sysfs_remove_group(&client->dev.kobj, &pcf8591_attr_group);
-
-        if ((err = i2c_detach_client(client)))
-                return err;
-
         kfree(i2c_get_clientdata(client));
         return 0;
 }
@@ -316,6 +283,25 @@ static int pcf8591_read_channel(struct device *dev, int channel)
                 return (10 * value);
 }
 
+static const struct i2c_device_id pcf8591_id[] = {
+        { "pcf8591", 0 },
+        { }
+};
+MODULE_DEVICE_TABLE(i2c, pcf8591_id);
+
+static struct i2c_driver pcf8591_driver = {
+        .driver = {
+                .name   = "pcf8591",
+        },
+        .probe          = pcf8591_probe,
+        .remove         = pcf8591_remove,
+        .id_table       = pcf8591_id,
+
+        .class          = I2C_CLASS_HWMON,      /* Nearest choice */
+        .detect         = pcf8591_detect,
+        .address_data   = &addr_data,
+};
+
 static int __init pcf8591_init(void)
 {
         if (input_mode < 0 || input_mode > 3) {
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 0a79f7661017..7608df83d6d1 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -654,6 +654,10 @@ int i2c_del_adapter(struct i2c_adapter *adap)
 
         dev_dbg(&adap->dev, "adapter [%s] unregistered\n", adap->name);
 
+        /* Clear the device structure in case this adapter is ever going to be
+           added again */
+        memset(&adap->dev, 0, sizeof(adap->dev));
+
  out_unlock:
         mutex_unlock(&core_lock);
         return res;