[PATCH] tpm: remove pci dependency

Since the tpm does not have it's own pci id we have been consuming the lpc
bus.  This is not correct and causes problems to support non lpc bus chips.
This patch removes the dependency on pci_dev from tpm.c The subsequent patches
will stop the supported chips from registering as pci drivers.

Signed-off-by: Kylene Hall <kjhall@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 20 insertions, 12 deletions

diff --git a/drivers/char/tpm/tpm_nsc.c b/drivers/char/tpm/tpm_nsc.c
index bf3e774c4dc..10202d0bc1c 100644
--- a/drivers/char/tpm/tpm_nsc.c
+++ b/drivers/char/tpm/tpm_nsc.c
@@ -111,7 +111,7 @@ static int nsc_wait_for_ready(struct tpm_chip *chip)
 	}
 	while (time_before(jiffies, stop));
 
-	dev_info(&chip->pci_dev->dev, "wait for ready failed\n");
+	dev_info(chip->dev, "wait for ready failed\n");
 	return -EBUSY;
 }
 
@@ -127,12 +127,12 @@ static int tpm_nsc_recv(struct tpm_chip *chip, u8 * buf, size_t count)
 		return -EIO;
 
 	if (wait_for_stat(chip, NSC_STATUS_F0, NSC_STATUS_F0, &data) < 0) {
-		dev_err(&chip->pci_dev->dev, "F0 timeout\n");
+		dev_err(chip->dev, "F0 timeout\n");
 		return -EIO;
 	}
 	if ((data =
 	     inb(chip->vendor->base + NSC_DATA)) != NSC_COMMAND_NORMAL) {
-		dev_err(&chip->pci_dev->dev, "not in normal mode (0x%x)\n",
+		dev_err(chip->dev, "not in normal mode (0x%x)\n",
 			data);
 		return -EIO;
 	}
@@ -141,7 +141,7 @@ static int tpm_nsc_recv(struct tpm_chip *chip, u8 * buf, size_t count)
 	for (p = buffer; p < &buffer[count]; p++) {
 		if (wait_for_stat
 		    (chip, NSC_STATUS_OBF, NSC_STATUS_OBF, &data) < 0) {
-			dev_err(&chip->pci_dev->dev,
+			dev_err(chip->dev,
 				"OBF timeout (while reading data)\n");
 			return -EIO;
 		}
@@ -152,11 +152,11 @@ static int tpm_nsc_recv(struct tpm_chip *chip, u8 * buf, size_t count)
 
 	if ((data & NSC_STATUS_F0) == 0 &&
 	(wait_for_stat(chip, NSC_STATUS_F0, NSC_STATUS_F0, &data) < 0)) {
-		dev_err(&chip->pci_dev->dev, "F0 not set\n");
+		dev_err(chip->dev, "F0 not set\n");
 		return -EIO;
 	}
 	if ((data = inb(chip->vendor->base + NSC_DATA)) != NSC_COMMAND_EOC) {
-		dev_err(&chip->pci_dev->dev,
+		dev_err(chip->dev,
 			"expected end of command(0x%x)\n", data);
 		return -EIO;
 	}
@@ -187,19 +187,19 @@ static int tpm_nsc_send(struct tpm_chip *chip, u8 * buf, size_t count)
 		return -EIO;
 
 	if (wait_for_stat(chip, NSC_STATUS_IBF, 0, &data) < 0) {
-		dev_err(&chip->pci_dev->dev, "IBF timeout\n");
+		dev_err(chip->dev, "IBF timeout\n");
 		return -EIO;
 	}
 
 	outb(NSC_COMMAND_NORMAL, chip->vendor->base + NSC_COMMAND);
 	if (wait_for_stat(chip, NSC_STATUS_IBR, NSC_STATUS_IBR, &data) < 0) {
-		dev_err(&chip->pci_dev->dev, "IBR timeout\n");
+		dev_err(chip->dev, "IBR timeout\n");
 		return -EIO;
 	}
 
 	for (i = 0; i < count; i++) {
 		if (wait_for_stat(chip, NSC_STATUS_IBF, 0, &data) < 0) {
-			dev_err(&chip->pci_dev->dev,
+			dev_err(chip->dev,
 				"IBF timeout (while writing data)\n");
 			return -EIO;
 		}
@@ -207,7 +207,7 @@ static int tpm_nsc_send(struct tpm_chip *chip, u8 * buf, size_t count)
 	}
 
 	if (wait_for_stat(chip, NSC_STATUS_IBF, 0, &data) < 0) {
-		dev_err(&chip->pci_dev->dev, "IBF timeout\n");
+		dev_err(chip->dev, "IBF timeout\n");
 		return -EIO;
 	}
 	outb(NSC_COMMAND_EOC, chip->vendor->base + NSC_COMMAND);
@@ -325,7 +325,7 @@ static int __devinit tpm_nsc_init(struct pci_dev *pci_dev,
 	/* enable the DPM module */
 	tpm_write_index(nscAddrBase, NSC_LDC_INDEX, 0x01);
 
-	if ((rc = tpm_register_hardware(pci_dev, &tpm_nsc)) < 0)
+	if ((rc = tpm_register_hardware(&pci_dev->dev, &tpm_nsc)) < 0)
 		goto out_err;
 
 	return 0;
@@ -335,6 +335,14 @@ out_err:
 	return rc;
 }
 
+static void __devexit tpm_nsc_remove(struct pci_dev *pci_dev)
+{
+	struct tpm_chip *chip = pci_get_drvdata(pci_dev);
+
+	if ( chip )
+		tpm_remove_hardware(chip->dev);
+}
+
 static struct pci_device_id tpm_pci_tbl[] __devinitdata = {
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0)},
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12)},
@@ -354,7 +362,7 @@ static struct pci_driver nsc_pci_driver = {
 	.name = "tpm_nsc",
 	.id_table = tpm_pci_tbl,
 	.probe = tpm_nsc_init,
-	.remove = __devexit_p(tpm_remove),
+	.remove = __devexit_p(tpm_nsc_remove),
 	.suspend = tpm_pm_suspend,
 	.resume = tpm_pm_resume,
 };