ide: add ->dev and ->host_priv fields to struct ide_host

* Add 'struct device *dev[2]' and 'void *host_priv' fields
  to struct ide_host.

* Set ->dev[] in ide_host_alloc_all()/ide_setup_pci_device[s]().

* Pass 'void *priv' argument to ide_setup_pci_device[s]()
  and use it to set ->host_priv.

* Set PCI dev's ->driver_data to point to the struct ide_host
  instance if PCI host driver wants to use ->host_priv.

* Rename ide_setup_pci_device[s]() to ide_pci_init_{one,two}().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/pci/generic.c b/drivers/ide/pci/generic.c
index 041720e..dd0caea 100644
--- a/drivers/ide/pci/generic.c
+++ b/drivers/ide/pci/generic.c
@@ -139,7 +139,7 @@
 			goto out;
 		}
 	}
-	ret = ide_setup_pci_device(dev, d);
+	ret = ide_pci_init_one(dev, d, NULL);
 out:
 	return ret;
 }