[POWERPC] Fix i2c-powermac platform device usage

i2c-powermac was written & merged right after Russell King's changes
adding platform_driver... which I missed. Thus it still used struct
device, causing crashes when hitting sleep/wakeup callbacks (it happened
to work by luck so far, until early/late callbacks got added). This
causes crashes on sleep/wakeup on PowerBooks with 2.6.19. The patch
fixes it by using a proper platform_driver.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 15 insertions, 13 deletions

diff --git a/drivers/i2c/busses/i2c-powermac.c b/drivers/i2c/busses/i2c-powermac.c
index a508cb962d24..648d55533d87 100644
--- a/drivers/i2c/busses/i2c-powermac.c
+++ b/drivers/i2c/busses/i2c-powermac.c
@@ -182,9 +182,9 @@ static const struct i2c_algorithm i2c_powermac_algorithm = {
 };
 
 
-static int i2c_powermac_remove(struct device *dev)
+static int i2c_powermac_remove(struct platform_device *dev)
 {
-        struct i2c_adapter      *adapter = dev_get_drvdata(dev);
+        struct i2c_adapter      *adapter = platform_get_drvdata(dev);
         struct pmac_i2c_bus     *bus = i2c_get_adapdata(adapter);
         int                     rc;
 
@@ -195,16 +195,16 @@ static int i2c_powermac_remove(struct device *dev)
         if (rc)
                 printk("i2c-powermac.c: Failed to remove bus %s !\n",
                        adapter->name);
-        dev_set_drvdata(dev, NULL);
+        platform_set_drvdata(dev, NULL);
         kfree(adapter);
 
         return 0;
 }
 
 
-static int i2c_powermac_probe(struct device *dev)
+static int __devexit i2c_powermac_probe(struct platform_device *dev)
 {
-        struct pmac_i2c_bus *bus = dev->platform_data;
+        struct pmac_i2c_bus *bus = dev->dev.platform_data;
         struct device_node *parent = NULL;
         struct i2c_adapter *adapter;
         char name[32];
@@ -246,11 +246,11 @@ static int i2c_powermac_probe(struct device *dev)
                 printk(KERN_ERR "i2c-powermac: can't allocate inteface !\n");
                 return -ENOMEM;
         }
-        dev_set_drvdata(dev, adapter);
+        platform_set_drvdata(dev, adapter);
         strcpy(adapter->name, name);
         adapter->algo = &i2c_powermac_algorithm;
         i2c_set_adapdata(adapter, bus);
-        adapter->dev.parent = dev;
+        adapter->dev.parent = &dev->dev;
         pmac_i2c_attach_adapter(bus, adapter);
         rc = i2c_add_adapter(adapter);
         if (rc) {
@@ -265,23 +265,25 @@ static int i2c_powermac_probe(struct device *dev)
 }
 
 
-static struct device_driver i2c_powermac_driver = {
-        .name = "i2c-powermac",
-        .bus = &platform_bus_type,
+static struct platform_driver i2c_powermac_driver = {
         .probe = i2c_powermac_probe,
-        .remove = i2c_powermac_remove,
+        .remove = __devexit_p(i2c_powermac_remove),
+        .driver = {
+                .name = "i2c-powermac",
+                .bus = &platform_bus_type,
+        },
 };
 
 static int __init i2c_powermac_init(void)
 {
-        driver_register(&i2c_powermac_driver);
+        platform_driver_register(&i2c_powermac_driver);
         return 0;
 }
 
 
 static void __exit i2c_powermac_cleanup(void)
 {
-        driver_unregister(&i2c_powermac_driver);
+        platform_driver_unregister(&i2c_powermac_driver);
 }
 
 module_init(i2c_powermac_init);