[PATCH 3/6] tpm_tis: set timeouts before calling request_locality

From: Andy Isaacson
Date: Tue Jun 30 2009 - 21:23:25 EST


On Intel iTPM implementations, the timeouts must be set before
calling request_locality.

Based on a patch from Colin Didier and the tpmdd-devel mailing list:
http://cybione.org/~cdidier/log/data/200812020841/itpm.diff

Signed-off-by: Andy Isaacson <adi@xxxxxxxxxx>
---
drivers/char/tpm/tpm_tis.c | 12 ++++++------
1 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index e859e0e..e0bda02 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -450,6 +450,12 @@ static int tpm_tis_init(struct device *dev, resource_size_t start,
goto out_err;
}

+ /* Default timeouts */
+ chip->vendor.timeout_a = msecs_to_jiffies(TIS_SHORT_TIMEOUT);
+ chip->vendor.timeout_b = msecs_to_jiffies(TIS_LONG_TIMEOUT);
+ chip->vendor.timeout_c = msecs_to_jiffies(TIS_SHORT_TIMEOUT);
+ chip->vendor.timeout_d = msecs_to_jiffies(TIS_SHORT_TIMEOUT);
+
if (request_locality(chip, 0) != 0) {
rc = -ENODEV;
goto out_err;
@@ -457,12 +463,6 @@ static int tpm_tis_init(struct device *dev, resource_size_t start,

vendor = ioread32(chip->vendor.iobase + TPM_DID_VID(0));

- /* Default timeouts */
- chip->vendor.timeout_a = msecs_to_jiffies(TIS_SHORT_TIMEOUT);
- chip->vendor.timeout_b = msecs_to_jiffies(TIS_LONG_TIMEOUT);
- chip->vendor.timeout_c = msecs_to_jiffies(TIS_SHORT_TIMEOUT);
- chip->vendor.timeout_d = msecs_to_jiffies(TIS_SHORT_TIMEOUT);
-
dev_info(dev,
"1.2 TPM (device-id 0x%X, rev-id %d)\n",
vendor >> 16, ioread8(chip->vendor.iobase + TPM_RID(0)));
--
1.6.3.1

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