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authorMarcel Selhorst <tpm@selhorst.net>2007-11-28 16:21:27 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-11-29 09:24:52 -0800
commit05a462afe80553550bc77afc724ce60b42ad587e (patch)
tree74a545565f0bc1a7cb151b0e768840f454c51080 /drivers/char
parent19fd4bb2a0cfede054e4904e0b167e0ca4f36cc7 (diff)
downloadop-kernel-dev-05a462afe80553550bc77afc724ce60b42ad587e.zip
op-kernel-dev-05a462afe80553550bc77afc724ce60b42ad587e.tar.gz
TPM: fix TIS device driver locality request
During the initialization of the TPM TIS driver, the necessary locality has to be requested earlier in the init-process. Depending on the used TPM chip, this leads to wrong information. For example: Lenovo X61s with Atmel TPM: tpm_tis 00:0a: 1.2 TPM (device-id 0xFFFF, rev-id 255) But correct is: tpm_tis 00:0c: 1.2 TPM (device-id 0x3203, rev-id 9) This short patch fixes this issue. Signed-off-by: Marcel Selhorst <tpm@selhorst.net> Cc: Kylene Jo Hall <kjhall@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/tpm/tpm_tis.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index fd771a4..81503d9 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -450,6 +450,11 @@ static int tpm_tis_init(struct device *dev, resource_size_t start,
goto out_err;
}
+ if (request_locality(chip, 0) != 0) {
+ rc = -ENODEV;
+ goto out_err;
+ }
+
vendor = ioread32(chip->vendor.iobase + TPM_DID_VID(0));
/* Default timeouts */
@@ -487,11 +492,6 @@ static int tpm_tis_init(struct device *dev, resource_size_t start,
if (intfcaps & TPM_INTF_DATA_AVAIL_INT)
dev_dbg(dev, "\tData Avail Int Support\n");
- if (request_locality(chip, 0) != 0) {
- rc = -ENODEV;
- goto out_err;
- }
-
/* INTERRUPT Setup */
init_waitqueue_head(&chip->vendor.read_queue);
init_waitqueue_head(&chip->vendor.int_queue);
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