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TPM: Stop requesting/releasing the TPM locality.

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The locality is requested when the TPM is initialized and released when
it's cleaned up. There's no reason to set it to the same thing again and
restore it back to the same value before and after every transaction.

BUG=None
TEST=Built and booted on pit.
BRANCH=None

forward ported from https://chromium-review.googlesource.com/#/c/168400

Change-Id: I291d1f86f220ef0eff6809c6cb00459bf95aa5e0
Signed-off-by: Gabe Black <gabeblack@google.com>
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: https://chromium-review.googlesource.com/168584
Reviewed-by: Gabe Black <gabeblack@chromium.org>
This commit is contained in:
Stefan Reinauer 2013-09-09 10:47:52 -07:00 • committed by chrome-internal-fetch
commit cc866c20c6
1 changed files with 0 additions and 5 deletions
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5
src/drivers/i2c/tpm/tpm_tis_i2c.c
View file

@ -429,7 +429,6 @@ static int tpm_tis_i2c_recv(struct tpm_chip *chip, uint8_t *buf, size_t count)
out:
tpm_tis_i2c_ready(chip);
release_locality(chip, chip->vendor.locality, 0);
return size;
}
@ -444,9 +443,6 @@ static int tpm_tis_i2c_send(struct tpm_chip *chip, uint8_t *buf, size_t len)
if (len > TPM_BUFSIZE)
return -1; //E2BIG; /* command is too long for our tpm, sorry */
if (request_locality(chip, 0) < 0)
return -1; //EBUSY;
status = tpm_tis_i2c_status(chip);
if ((status & TPM_STS_COMMAND_READY) == 0) {
tpm_tis_i2c_ready(chip);
@ -499,7 +495,6 @@ static int tpm_tis_i2c_send(struct tpm_chip *chip, uint8_t *buf, size_t len)
return len;
out_err:
tpm_tis_i2c_ready(chip);
release_locality(chip, chip->vendor.locality, 0);
return rc;
}