diff options
Diffstat (limited to 'drivers/char/tpm')
| -rw-r--r-- | drivers/char/tpm/tpm_tis.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c index 23fa18a6654c..a8e808461377 100644 --- a/drivers/char/tpm/tpm_tis.c +++ b/drivers/char/tpm/tpm_tis.c @@ -435,17 +435,12 @@ module_param(interrupts, bool, 0444); MODULE_PARM_DESC(interrupts, "Enable interrupts"); static int tpm_tis_init(struct device *dev, resource_size_t start, - resource_size_t len) + resource_size_t len, unsigned int irq) { u32 vendor, intfcaps, intmask; int rc, i; struct tpm_chip *chip; - if (!start) - start = TIS_MEM_BASE; - if (!len) - len = TIS_MEM_LEN; - if (!(chip = tpm_register_hardware(dev, &tpm_tis))) return -ENODEV; @@ -512,7 +507,9 @@ static int tpm_tis_init(struct device *dev, resource_size_t start, iowrite32(intmask, chip->vendor.iobase + TPM_INT_ENABLE(chip->vendor.locality)); - if (interrupts) { + if (interrupts) + chip->vendor.irq = irq; + if (interrupts && !chip->vendor.irq) { chip->vendor.irq = ioread8(chip->vendor.iobase + TPM_INT_VECTOR(chip->vendor.locality)); @@ -597,10 +594,17 @@ static int __devinit tpm_tis_pnp_init(struct pnp_dev *pnp_dev, const struct pnp_device_id *pnp_id) { resource_size_t start, len; + unsigned int irq = 0; + start = pnp_mem_start(pnp_dev, 0); len = pnp_mem_len(pnp_dev, 0); - return tpm_tis_init(&pnp_dev->dev, start, len); + if (pnp_irq_valid(pnp_dev, 0)) + irq = pnp_irq(pnp_dev, 0); + else + interrupts = 0; + + return tpm_tis_init(&pnp_dev->dev, start, len, irq); } static int tpm_tis_pnp_suspend(struct pnp_dev *dev, pm_message_t msg) @@ -660,7 +664,7 @@ static int __init init_tis(void) return rc; if (IS_ERR(pdev=platform_device_register_simple("tpm_tis", -1, NULL, 0))) return PTR_ERR(pdev); - if((rc=tpm_tis_init(&pdev->dev, 0, 0)) != 0) { + if((rc=tpm_tis_init(&pdev->dev, TIS_MEM_BASE, TIS_MEM_LEN, 0)) != 0) { platform_device_unregister(pdev); driver_unregister(&tis_drv); } |