diff options
Diffstat (limited to 'drivers/char/tpm/tpm_tis.c')
| -rw-r--r-- | drivers/char/tpm/tpm_tis.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c index f10a107614b4..513f30efd9d3 100644 --- a/drivers/char/tpm/tpm_tis.c +++ b/drivers/char/tpm/tpm_tis.c @@ -677,6 +677,15 @@ static int tpm_tis_init(struct device *dev, struct tpm_info *tpm_info, goto out_err; } + /* Take control of the TPM's interrupt hardware and shut it off */ + intmask = ioread32(chip->vendor.iobase + + TPM_INT_ENABLE(chip->vendor.locality)); + intmask |= TPM_INTF_CMD_READY_INT | TPM_INTF_LOCALITY_CHANGE_INT | + TPM_INTF_DATA_AVAIL_INT | TPM_INTF_STS_VALID_INT; + intmask &= ~TPM_GLOBAL_INT_ENABLE; + iowrite32(intmask, + chip->vendor.iobase + TPM_INT_ENABLE(chip->vendor.locality)); + if (request_locality(chip, 0) != 0) { rc = -ENODEV; goto out_err; @@ -735,17 +744,6 @@ static int tpm_tis_init(struct device *dev, struct tpm_info *tpm_info, init_waitqueue_head(&chip->vendor.read_queue); init_waitqueue_head(&chip->vendor.int_queue); - intmask = - ioread32(chip->vendor.iobase + - TPM_INT_ENABLE(chip->vendor.locality)); - - intmask |= TPM_INTF_CMD_READY_INT - | TPM_INTF_LOCALITY_CHANGE_INT | TPM_INTF_DATA_AVAIL_INT - | TPM_INTF_STS_VALID_INT; - - iowrite32(intmask, - chip->vendor.iobase + - TPM_INT_ENABLE(chip->vendor.locality)); if (interrupts) chip->vendor.irq = tpm_info->irq; if (interrupts && !chip->vendor.irq) { |