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[PATCH] tpm: move nsc driver off pci_dev 

This patch changes the nsc driver from a pci driver to a platform driver.

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>
This commit is contained in:
Kylene Jo Hall 2005-10-30 15:03:26 -08:00 committed by Linus Torvalds
parent 682e97acea
commit 570302a311
1 changed files with 77 additions and 67 deletions
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144
drivers/char/tpm/tpm_nsc.c
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@ -261,16 +261,32 @@ static struct tpm_vendor_specific tpm_nsc = {
.miscdev = { .fops = &nsc_ops, },
};
static int __devinit tpm_nsc_init(struct pci_dev *pci_dev,
const struct pci_device_id *pci_id)
static struct platform_device *pdev = NULL;
static void __devexit tpm_nsc_remove(struct device *dev)
{
struct tpm_chip *chip = dev_get_drvdata(dev);
if ( chip ) {
release_region(chip->vendor->base, 2);
tpm_remove_hardware(chip->dev);
}
}
static struct device_driver nsc_drv = {
.name = "tpm_nsc",
.bus = &platform_bus_type,
.owner = THIS_MODULE,
.suspend = tpm_pm_suspend,
.resume = tpm_pm_resume,
};
static int __init init_nsc(void)
{
int rc = 0;
int lo, hi;
int nscAddrBase = TPM_ADDR;
if (pci_enable_device(pci_dev))
return -EIO;
driver_register(&nsc_drv);
/* select PM channel 1 */
tpm_write_index(nscAddrBase,NSC_LDN_INDEX, 0x12);
@ -279,37 +295,71 @@ static int __devinit tpm_nsc_init(struct pci_dev *pci_dev,
if (tpm_read_index(TPM_ADDR, NSC_SID_INDEX) != 0xEF) {
nscAddrBase = (tpm_read_index(TPM_SUPERIO_ADDR, 0x2C)<<8)|
(tpm_read_index(TPM_SUPERIO_ADDR, 0x2B)&0xFE);
if (tpm_read_index(nscAddrBase, NSC_SID_INDEX) != 0xF6) {
rc = -ENODEV;
goto out_err;
}
if (tpm_read_index(nscAddrBase, NSC_SID_INDEX) != 0xF6)
return -ENODEV;
}
hi = tpm_read_index(nscAddrBase, TPM_NSC_BASE0_HI);
lo = tpm_read_index(nscAddrBase, TPM_NSC_BASE0_LO);
tpm_nsc.base = (hi<<8) | lo;
dev_dbg(&pci_dev->dev, "NSC TPM detected\n");
dev_dbg(&pci_dev->dev,
/* enable the DPM module */
tpm_write_index(nscAddrBase, NSC_LDC_INDEX, 0x01);
pdev = kmalloc(sizeof(struct platform_device), GFP_KERNEL);
if ( !pdev )
return -ENOMEM;
memset(pdev, 0, sizeof(struct platform_device));
pdev->name = "tpm_nscl0";
pdev->id = -1;
pdev->num_resources = 0;
pdev->dev.release = tpm_nsc_remove;
pdev->dev.driver = &nsc_drv;
if ((rc=platform_device_register(pdev)) < 0) {
kfree(pdev);
pdev = NULL;
return rc;
}
if (request_region(tpm_nsc.base, 2, "tpm_nsc0") == NULL ) {
platform_device_unregister(pdev);
kfree(pdev);
pdev = NULL;
return -EBUSY;
}
if ((rc = tpm_register_hardware(&pdev->dev, &tpm_nsc)) < 0) {
release_region(tpm_nsc.base, 2);
platform_device_unregister(pdev);
kfree(pdev);
pdev = NULL;
return rc;
}
dev_dbg(&pdev->dev, "NSC TPM detected\n");
dev_dbg(&pdev->dev,
"NSC LDN 0x%x, SID 0x%x, SRID 0x%x\n",
tpm_read_index(nscAddrBase,0x07), tpm_read_index(nscAddrBase,0x20),
tpm_read_index(nscAddrBase,0x27));
dev_dbg(&pci_dev->dev,
dev_dbg(&pdev->dev,
"NSC SIOCF1 0x%x SIOCF5 0x%x SIOCF6 0x%x SIOCF8 0x%x\n",
tpm_read_index(nscAddrBase,0x21), tpm_read_index(nscAddrBase,0x25),
tpm_read_index(nscAddrBase,0x26), tpm_read_index(nscAddrBase,0x28));
dev_dbg(&pci_dev->dev, "NSC IO Base0 0x%x\n",
dev_dbg(&pdev->dev, "NSC IO Base0 0x%x\n",
(tpm_read_index(nscAddrBase,0x60) << 8) | tpm_read_index(nscAddrBase,0x61));
dev_dbg(&pci_dev->dev, "NSC IO Base1 0x%x\n",
dev_dbg(&pdev->dev, "NSC IO Base1 0x%x\n",
(tpm_read_index(nscAddrBase,0x62) << 8) | tpm_read_index(nscAddrBase,0x63));
dev_dbg(&pci_dev->dev, "NSC Interrupt number and wakeup 0x%x\n",
dev_dbg(&pdev->dev, "NSC Interrupt number and wakeup 0x%x\n",
tpm_read_index(nscAddrBase,0x70));
dev_dbg(&pci_dev->dev, "NSC IRQ type select 0x%x\n",
dev_dbg(&pdev->dev, "NSC IRQ type select 0x%x\n",
tpm_read_index(nscAddrBase,0x71));
dev_dbg(&pci_dev->dev,
dev_dbg(&pdev->dev,
"NSC DMA channel select0 0x%x, select1 0x%x\n",
tpm_read_index(nscAddrBase,0x74), tpm_read_index(nscAddrBase,0x75));
dev_dbg(&pci_dev->dev,
dev_dbg(&pdev->dev,
"NSC Config "
"0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
tpm_read_index(nscAddrBase,0xF0), tpm_read_index(nscAddrBase,0xF1),
@ -318,63 +368,23 @@ static int __devinit tpm_nsc_init(struct pci_dev *pci_dev,
tpm_read_index(nscAddrBase,0xF6), tpm_read_index(nscAddrBase,0xF7),
tpm_read_index(nscAddrBase,0xF8), tpm_read_index(nscAddrBase,0xF9));
dev_info(&pci_dev->dev,
dev_info(&pdev->dev,
"NSC TPM revision %d\n",
tpm_read_index(nscAddrBase, 0x27) & 0x1F);
/* enable the DPM module */
tpm_write_index(nscAddrBase, NSC_LDC_INDEX, 0x01);
if ((rc = tpm_register_hardware(&pci_dev->dev, &tpm_nsc)) < 0)
goto out_err;
return 0;
out_err:
pci_disable_device(pci_dev);
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)},
{PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0)},
{PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12)},
{PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0)},
{PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0)},
{PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1)},
{PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0)},
{PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_LPC)},
{0,}
};
MODULE_DEVICE_TABLE(pci, tpm_pci_tbl);
static struct pci_driver nsc_pci_driver = {
.name = "tpm_nsc",
.id_table = tpm_pci_tbl,
.probe = tpm_nsc_init,
.remove = __devexit_p(tpm_nsc_remove),
.suspend = tpm_pm_suspend,
.resume = tpm_pm_resume,
};
static int __init init_nsc(void)
{
return pci_register_driver(&nsc_pci_driver);
}
static void __exit cleanup_nsc(void)
{
pci_unregister_driver(&nsc_pci_driver);
if (pdev) {
tpm_nsc_remove(&pdev->dev);
platform_device_unregister(pdev);
kfree(pdev);
pdev = NULL;
}
driver_unregister(&nsc_drv);
}
module_init(init_nsc);