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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2011-02-01 08:16:22 +0300 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2011-02-01 08:16:22 +0300 |
| commit | a1f3d4bba8ea395a39d34ade6017afee8be16031 (patch) | |
| tree | 874d843d35622f17aa6c3e048e42cf0d679bcb75 /drivers/char/tpm/tpm_tis.c | |
| parent | 723d928417bffff6467da155d8ebbbe016464012 (diff) | |
| parent | ebf53826e105f488f4f628703a108e98940d1dc5 (diff) | |
| download | linux-a1f3d4bba8ea395a39d34ade6017afee8be16031.tar.xz | |
Merge commit 'v2.6.38-rc3' into next
Diffstat (limited to 'drivers/char/tpm/tpm_tis.c')
| -rw-r--r-- | drivers/char/tpm/tpm_tis.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c index 1030f8420137..dd21df55689d 100644 --- a/drivers/char/tpm/tpm_tis.c +++ b/drivers/char/tpm/tpm_tis.c @@ -25,6 +25,7 @@ #include <linux/slab.h> #include <linux/interrupt.h> #include <linux/wait.h> +#include <linux/acpi.h> #include "tpm.h" #define TPM_HEADER_SIZE 10 @@ -78,6 +79,26 @@ enum tis_defaults { static LIST_HEAD(tis_chips); static DEFINE_SPINLOCK(tis_lock); +#ifdef CONFIG_ACPI +static int is_itpm(struct pnp_dev *dev) +{ + struct acpi_device *acpi = pnp_acpi_device(dev); + struct acpi_hardware_id *id; + + list_for_each_entry(id, &acpi->pnp.ids, list) { + if (!strcmp("INTC0102", id->id)) + return 1; + } + + return 0; +} +#else +static int is_itpm(struct pnp_dev *dev) +{ + return 0; +} +#endif + static int check_locality(struct tpm_chip *chip, int l) { if ((ioread8(chip->vendor.iobase + TPM_ACCESS(l)) & @@ -613,6 +634,9 @@ static int __devinit tpm_tis_pnp_init(struct pnp_dev *pnp_dev, else interrupts = 0; + if (is_itpm(pnp_dev)) + itpm = 1; + return tpm_tis_init(&pnp_dev->dev, start, len, irq); } |