tpm: rename chip->dev to chip->pdev

Rename chip->dev to chip->pdev to make it explicit that this not the
character device but actually represents the platform device.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Jasob Gunthorpe <jason.gunthorpe@obsidianresearch.com>
Reviewed-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Peter Huewe <peterhuewe@gmx.de>
Tested-by: Scot Doyle <lkml14@scotdoyle.com>
Tested-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
diff --git a/drivers/char/tpm/tpm-dev.c b/drivers/char/tpm/tpm-dev.c
index d9b774e..3568321 100644
--- a/drivers/char/tpm/tpm-dev.c
+++ b/drivers/char/tpm/tpm-dev.c
@@ -63,7 +63,7 @@
 	 * by the check of is_open variable, which is protected
 	 * by driver_lock. */
 	if (test_and_set_bit(0, &chip->is_open)) {
-		dev_dbg(chip->dev, "Another process owns this TPM\n");
+		dev_dbg(chip->pdev, "Another process owns this TPM\n");
 		return -EBUSY;
 	}
 
@@ -81,7 +81,7 @@
 	INIT_WORK(&priv->work, timeout_work);
 
 	file->private_data = priv;
-	get_device(chip->dev);
+	get_device(chip->pdev);
 	return 0;
 }
 
@@ -168,7 +168,7 @@
 	file->private_data = NULL;
 	atomic_set(&priv->data_pending, 0);
 	clear_bit(0, &priv->chip->is_open);
-	put_device(priv->chip->dev);
+	put_device(priv->chip->pdev);
 	kfree(priv);
 	return 0;
 }
@@ -193,12 +193,12 @@
 		chip->vendor.miscdev.minor = MISC_DYNAMIC_MINOR;
 
 	chip->vendor.miscdev.name = chip->devname;
-	chip->vendor.miscdev.parent = chip->dev;
+	chip->vendor.miscdev.parent = chip->pdev;
 
 	rc = misc_register(&chip->vendor.miscdev);
 	if (rc) {
 		chip->vendor.miscdev.name = NULL;
-		dev_err(chip->dev,
+		dev_err(chip->pdev,
 			"unable to misc_register %s, minor %d err=%d\n",
 			chip->vendor.miscdev.name,
 			chip->vendor.miscdev.minor, rc);