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path: root/drivers/char/tpm/tpm_tis.c
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Diffstat (limited to 'drivers/char/tpm/tpm_tis.c')
-rw-r--r--drivers/char/tpm/tpm_tis.c11
1 files changed, 4 insertions, 7 deletions
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index e12b3ab215cf..f2dffa770b8e 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -642,12 +642,9 @@ static int tpm_tis_init(struct device *dev, acpi_handle acpi_dev_handle,
goto out_err;
}
- /* Every TPM 2.x command has a higher ordinal than TPM 1.x commands.
- * Therefore, we can use an idempotent TPM 2.x command to probe TPM 2.x.
- */
- rc = tpm2_gen_interrupt(chip, true);
- if (rc == 0 || rc == TPM2_RC_INITIALIZE)
- chip->flags |= TPM_CHIP_FLAG_TPM2;
+ rc = tpm2_probe(chip);
+ if (rc)
+ goto out_err;
vendor = ioread32(chip->vendor.iobase + TPM_DID_VID(0));
chip->vendor.manufacturer_id = vendor;
@@ -750,7 +747,7 @@ static int tpm_tis_init(struct device *dev, acpi_handle acpi_dev_handle,
/* Generate Interrupts */
if (chip->flags & TPM_CHIP_FLAG_TPM2)
- tpm2_gen_interrupt(chip, false);
+ tpm2_gen_interrupt(chip);
else
tpm_gen_interrupt(chip);
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