[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>
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
index 328f2a9..75f949b 100644
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -64,7 +64,7 @@
if (count == 0)
return -ENODATA;
if (count > bufsiz) {
- dev_err(&chip->pci_dev->dev,
+ dev_err(chip->dev,
"invalid count value %x %zx \n", count, bufsiz);
return -E2BIG;
}
@@ -72,7 +72,7 @@
down(&chip->tpm_mutex);
if ((rc = chip->vendor->send(chip, (u8 *) buf, count)) < 0) {
- dev_err(&chip->pci_dev->dev,
+ dev_err(chip->dev,
"tpm_transmit: tpm_send: error %zd\n", rc);
goto out;
}
@@ -86,7 +86,7 @@
}
if ((status == chip->vendor->req_canceled)) {
- dev_err(&chip->pci_dev->dev, "Operation Canceled\n");
+ dev_err(chip->dev, "Operation Canceled\n");
rc = -ECANCELED;
goto out;
}
@@ -97,14 +97,14 @@
chip->vendor->cancel(chip);
- dev_err(&chip->pci_dev->dev, "Operation Timed out\n");
+ dev_err(chip->dev, "Operation Timed out\n");
rc = -ETIME;
goto out;
out_recv:
rc = chip->vendor->recv(chip, (u8 *) buf, bufsiz);
if (rc < 0)
- dev_err(&chip->pci_dev->dev,
+ dev_err(chip->dev,
"tpm_transmit: tpm_recv: error %zd\n", rc);
out:
up(&chip->tpm_mutex);
@@ -139,15 +139,14 @@
__be32 index;
char *str = buf;
- struct tpm_chip *chip =
- pci_get_drvdata(to_pci_dev(dev));
+ struct tpm_chip *chip = dev_get_drvdata(dev);
if (chip == NULL)
return -ENODEV;
memcpy(data, cap_pcr, sizeof(cap_pcr));
if ((len = tpm_transmit(chip, data, sizeof(data)))
< CAP_PCR_RESULT_SIZE) {
- dev_dbg(&chip->pci_dev->dev, "A TPM error (%d) occurred "
+ dev_dbg(chip->dev, "A TPM error (%d) occurred "
"attempting to determine the number of PCRS\n",
be32_to_cpu(*((__be32 *) (data + 6))));
return 0;
@@ -161,7 +160,7 @@
memcpy(data + 10, &index, 4);
if ((len = tpm_transmit(chip, data, sizeof(data)))
< READ_PCR_RESULT_SIZE){
- dev_dbg(&chip->pci_dev->dev, "A TPM error (%d) occurred"
+ dev_dbg(chip->dev, "A TPM error (%d) occurred"
" attempting to read PCR %d of %d\n",
be32_to_cpu(*((__be32 *) (data + 6))), i, num_pcrs);
goto out;
@@ -191,8 +190,7 @@
int i, rc;
char *str = buf;
- struct tpm_chip *chip =
- pci_get_drvdata(to_pci_dev(dev));
+ struct tpm_chip *chip = dev_get_drvdata(dev);
if (chip == NULL)
return -ENODEV;
@@ -205,7 +203,7 @@
if ((len = tpm_transmit(chip, data, READ_PUBEK_RESULT_SIZE)) <
READ_PUBEK_RESULT_SIZE) {
- dev_dbg(&chip->pci_dev->dev, "A TPM error (%d) occurred "
+ dev_dbg(chip->dev, "A TPM error (%d) occurred "
"attempting to read the PUBEK\n",
be32_to_cpu(*((__be32 *) (data + 6))));
rc = 0;
@@ -274,8 +272,7 @@
ssize_t len;
char *str = buf;
- struct tpm_chip *chip =
- pci_get_drvdata(to_pci_dev(dev));
+ struct tpm_chip *chip = dev_get_drvdata(dev);
if (chip == NULL)
return -ENODEV;
@@ -339,21 +336,21 @@
}
if (chip->num_opens) {
- dev_dbg(&chip->pci_dev->dev,
+ dev_dbg(chip->dev,
"Another process owns this TPM\n");
rc = -EBUSY;
goto err_out;
}
chip->num_opens++;
- pci_dev_get(chip->pci_dev);
+ get_device(chip->dev);
spin_unlock(&driver_lock);
chip->data_buffer = kmalloc(TPM_BUFSIZE * sizeof(u8), GFP_KERNEL);
if (chip->data_buffer == NULL) {
chip->num_opens--;
- pci_dev_put(chip->pci_dev);
+ put_device(chip->dev);
return -ENOMEM;
}
@@ -378,7 +375,7 @@
chip->num_opens--;
del_singleshot_timer_sync(&chip->user_read_timer);
atomic_set(&chip->data_pending, 0);
- pci_dev_put(chip->pci_dev);
+ put_device(chip->dev);
kfree(chip->data_buffer);
spin_unlock(&driver_lock);
return 0;
@@ -447,12 +444,12 @@
EXPORT_SYMBOL_GPL(tpm_read);
-void __devexit tpm_remove(struct pci_dev *pci_dev)
+void tpm_remove_hardware(struct device *dev)
{
- struct tpm_chip *chip = pci_get_drvdata(pci_dev);
+ struct tpm_chip *chip = dev_get_drvdata(dev);
if (chip == NULL) {
- dev_err(&pci_dev->dev, "No device data found\n");
+ dev_err(dev, "No device data found\n");
return;
}
@@ -462,22 +459,20 @@
spin_unlock(&driver_lock);
- pci_set_drvdata(pci_dev, NULL);
+ dev_set_drvdata(dev, NULL);
misc_deregister(&chip->vendor->miscdev);
kfree(chip->vendor->miscdev.name);
- sysfs_remove_group(&pci_dev->dev.kobj, chip->vendor->attr_group);
-
- pci_disable_device(pci_dev);
+ sysfs_remove_group(&dev->kobj, chip->vendor->attr_group);
dev_mask[chip->dev_num / TPM_NUM_MASK_ENTRIES ] &= !(1 << (chip->dev_num % TPM_NUM_MASK_ENTRIES));
kfree(chip);
- pci_dev_put(pci_dev);
+ put_device(dev);
}
-EXPORT_SYMBOL_GPL(tpm_remove);
+EXPORT_SYMBOL_GPL(tpm_remove_hardware);
static u8 savestate[] = {
0, 193, /* TPM_TAG_RQU_COMMAND */
@@ -524,7 +519,7 @@
* upon errant exit from this function specific probe function should call
* pci_disable_device
*/
-int tpm_register_hardware(struct pci_dev *pci_dev,
+int tpm_register_hardware(struct device *dev,
struct tpm_vendor_specific *entry)
{
#define DEVNAME_SIZE 7
@@ -563,7 +558,7 @@
dev_num_search_complete:
if (chip->dev_num < 0) {
- dev_err(&pci_dev->dev,
+ dev_err(dev,
"No available tpm device numbers\n");
kfree(chip);
return -ENODEV;
@@ -576,15 +571,15 @@
scnprintf(devname, DEVNAME_SIZE, "%s%d", "tpm", chip->dev_num);
chip->vendor->miscdev.name = devname;
- chip->vendor->miscdev.dev = &(pci_dev->dev);
- chip->pci_dev = pci_dev_get(pci_dev);
+ chip->vendor->miscdev.dev = dev;
+ chip->dev = get_device(dev);
if (misc_register(&chip->vendor->miscdev)) {
- dev_err(&chip->pci_dev->dev,
+ dev_err(chip->dev,
"unable to misc_register %s, minor %d\n",
chip->vendor->miscdev.name,
chip->vendor->miscdev.minor);
- pci_dev_put(pci_dev);
+ put_device(dev);
kfree(chip);
dev_mask[i] &= !(1 << j);
return -ENODEV;
@@ -592,13 +587,13 @@
spin_lock(&driver_lock);
- pci_set_drvdata(pci_dev, chip);
+ dev_set_drvdata(dev, chip);
list_add(&chip->list, &tpm_chip_list);
spin_unlock(&driver_lock);
- sysfs_create_group(&pci_dev->dev.kobj, chip->vendor->attr_group);
+ sysfs_create_group(&dev->kobj, chip->vendor->attr_group);
return 0;
}
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index ba70bf5..27bc8cc 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -61,7 +61,7 @@
};
struct tpm_chip {
- struct pci_dev *pci_dev; /* PCI device stuff */
+ struct device *dev; /* Device stuff */
int dev_num; /* /dev/tpm# */
int num_opens; /* only one allowed */
@@ -92,13 +92,13 @@
outb(value & 0xFF, base+1);
}
-extern int tpm_register_hardware(struct pci_dev *,
+extern int tpm_register_hardware(struct device *,
struct tpm_vendor_specific *);
extern int tpm_open(struct inode *, struct file *);
extern int tpm_release(struct inode *, struct file *);
extern ssize_t tpm_write(struct file *, const char __user *, size_t,
loff_t *);
extern ssize_t tpm_read(struct file *, char __user *, size_t, loff_t *);
-extern void __devexit tpm_remove(struct pci_dev *);
+extern void tpm_remove_hardware(struct device *);
extern int tpm_pm_suspend(struct pci_dev *, pm_message_t);
extern int tpm_pm_resume(struct pci_dev *);
diff --git a/drivers/char/tpm/tpm_atmel.c b/drivers/char/tpm/tpm_atmel.c
index 96ab900..44b08ba 100644
--- a/drivers/char/tpm/tpm_atmel.c
+++ b/drivers/char/tpm/tpm_atmel.c
@@ -54,7 +54,7 @@
for (i = 0; i < 6; i++) {
status = inb(chip->vendor->base + 1);
if ((status & ATML_STATUS_DATA_AVAIL) == 0) {
- dev_err(&chip->pci_dev->dev,
+ dev_err(chip->dev,
"error reading header\n");
return -EIO;
}
@@ -66,12 +66,12 @@
size = be32_to_cpu(*native_size);
if (count < size) {
- dev_err(&chip->pci_dev->dev,
+ dev_err(chip->dev,
"Recv size(%d) less than available space\n", size);
for (; i < size; i++) { /* clear the waiting data anyway */
status = inb(chip->vendor->base + 1);
if ((status & ATML_STATUS_DATA_AVAIL) == 0) {
- dev_err(&chip->pci_dev->dev,
+ dev_err(chip->dev,
"error reading data\n");
return -EIO;
}
@@ -83,7 +83,7 @@
for (; i < size; i++) {
status = inb(chip->vendor->base + 1);
if ((status & ATML_STATUS_DATA_AVAIL) == 0) {
- dev_err(&chip->pci_dev->dev,
+ dev_err(chip->dev,
"error reading data\n");
return -EIO;
}
@@ -93,7 +93,7 @@
/* make sure data available is gone */
status = inb(chip->vendor->base + 1);
if (status & ATML_STATUS_DATA_AVAIL) {
- dev_err(&chip->pci_dev->dev, "data available is stuck\n");
+ dev_err(chip->dev, "data available is stuck\n");
return -EIO;
}
@@ -104,9 +104,9 @@
{
int i;
- dev_dbg(&chip->pci_dev->dev, "tpm_atml_send: ");
+ dev_dbg(chip->dev, "tpm_atml_send:\n");
for (i = 0; i < count; i++) {
- dev_dbg(&chip->pci_dev->dev, "0x%x(%d) ", buf[i], buf[i]);
+ dev_dbg(chip->dev, "%d 0x%x(%d)\n", i, buf[i], buf[i]);
outb(buf[i], chip->vendor->base);
}
@@ -193,7 +193,7 @@
goto out_err;
}
- if ((rc = tpm_register_hardware(pci_dev, &tpm_atmel)) < 0)
+ if ((rc = tpm_register_hardware(&pci_dev->dev, &tpm_atmel)) < 0)
goto out_err;
dev_info(&pci_dev->dev,
@@ -206,6 +206,14 @@
return rc;
}
+static void __devexit tpm_atml_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)},
@@ -226,7 +234,7 @@
.name = "tpm_atmel",
.id_table = tpm_pci_tbl,
.probe = tpm_atml_init,
- .remove = __devexit_p(tpm_remove),
+ .remove = __devexit_p(tpm_atml_remove),
.suspend = tpm_pm_suspend,
.resume = tpm_pm_resume,
};
diff --git a/drivers/char/tpm/tpm_infineon.c b/drivers/char/tpm/tpm_infineon.c
index 5b2ed53..5c3aeaf 100644
--- a/drivers/char/tpm/tpm_infineon.c
+++ b/drivers/char/tpm/tpm_infineon.c
@@ -143,10 +143,10 @@
}
if (i == TPM_MAX_TRIES) { /* timeout occurs */
if (wait_for_bit == STAT_XFE)
- dev_err(&chip->pci_dev->dev,
+ dev_err(chip->dev,
"Timeout in wait(STAT_XFE)\n");
if (wait_for_bit == STAT_RDA)
- dev_err(&chip->pci_dev->dev,
+ dev_err(chip->dev,
"Timeout in wait(STAT_RDA)\n");
return -EIO;
}
@@ -170,7 +170,7 @@
static void tpm_wtx(struct tpm_chip *chip)
{
number_of_wtx++;
- dev_info(&chip->pci_dev->dev, "Granting WTX (%02d / %02d)\n",
+ dev_info(chip->dev, "Granting WTX (%02d / %02d)\n",
number_of_wtx, TPM_MAX_WTX_PACKAGES);
wait_and_send(chip, TPM_VL_VER);
wait_and_send(chip, TPM_CTRL_WTX);
@@ -181,7 +181,7 @@
static void tpm_wtx_abort(struct tpm_chip *chip)
{
- dev_info(&chip->pci_dev->dev, "Aborting WTX\n");
+ dev_info(chip->dev, "Aborting WTX\n");
wait_and_send(chip, TPM_VL_VER);
wait_and_send(chip, TPM_CTRL_WTX_ABORT);
wait_and_send(chip, 0x00);
@@ -206,7 +206,7 @@
}
if (buf[0] != TPM_VL_VER) {
- dev_err(&chip->pci_dev->dev,
+ dev_err(chip->dev,
"Wrong transport protocol implementation!\n");
return -EIO;
}
@@ -221,7 +221,7 @@
}
if ((size == 0x6D00) && (buf[1] == 0x80)) {
- dev_err(&chip->pci_dev->dev,
+ dev_err(chip->dev,
"Error handling on vendor layer!\n");
return -EIO;
}
@@ -234,7 +234,7 @@
}
if (buf[1] == TPM_CTRL_WTX) {
- dev_info(&chip->pci_dev->dev, "WTX-package received\n");
+ dev_info(chip->dev, "WTX-package received\n");
if (number_of_wtx < TPM_MAX_WTX_PACKAGES) {
tpm_wtx(chip);
goto recv_begin;
@@ -245,14 +245,14 @@
}
if (buf[1] == TPM_CTRL_WTX_ABORT_ACK) {
- dev_info(&chip->pci_dev->dev, "WTX-abort acknowledged\n");
+ dev_info(chip->dev, "WTX-abort acknowledged\n");
return size;
}
if (buf[1] == TPM_CTRL_ERROR) {
- dev_err(&chip->pci_dev->dev, "ERROR-package received:\n");
+ dev_err(chip->dev, "ERROR-package received:\n");
if (buf[4] == TPM_INF_NAK)
- dev_err(&chip->pci_dev->dev,
+ dev_err(chip->dev,
"-> Negative acknowledgement"
" - retransmit command!\n");
return -EIO;
@@ -271,7 +271,7 @@
ret = empty_fifo(chip, 1);
if (ret) {
- dev_err(&chip->pci_dev->dev, "Timeout while clearing FIFO\n");
+ dev_err(chip->dev, "Timeout while clearing FIFO\n");
return -EIO;
}
@@ -494,7 +494,7 @@
vendorid[0], vendorid[1],
productid[0], productid[1], chipname);
- rc = tpm_register_hardware(pci_dev, &tpm_inf);
+ rc = tpm_register_hardware(&pci_dev->dev, &tpm_inf);
if (rc < 0)
goto error;
return 0;
@@ -509,6 +509,14 @@
}
}
+static __devexit void tpm_inf_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)},
@@ -527,7 +535,7 @@
.name = "tpm_inf",
.id_table = tpm_pci_tbl,
.probe = tpm_inf_probe,
- .remove = __devexit_p(tpm_remove),
+ .remove = __devexit_p(tpm_inf_remove),
.suspend = tpm_pm_suspend,
.resume = tpm_pm_resume,
};
diff --git a/drivers/char/tpm/tpm_nsc.c b/drivers/char/tpm/tpm_nsc.c
index bf3e774c..10202d0 100644
--- a/drivers/char/tpm/tpm_nsc.c
+++ b/drivers/char/tpm/tpm_nsc.c
@@ -111,7 +111,7 @@
}
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 @@
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 @@
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 @@
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 @@
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 @@
}
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 @@
/* 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 @@
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 @@
.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,
};