+++ /dev/null
-From 292cf4a8a989cb564a6a5f0ba7a66e08a095afa1 Mon Sep 17 00:00:00 2001
-From: Valdis Kletnieks <valdis.kletnieks@vt.edu>
-Date: Wed, 15 Oct 2008 22:04:35 -0700
-Subject: [PATCH] tpm: work around bug in Broadcom BCM0102 chipset
-Patch-mainline: 2.6.28
-References: bnc#425747 FATE304221
-
-Patch tpm-correct-tpm-timeouts-to-jiffies-conversion reveals a bug in the
-Broadcom BCM0102 TPM chipset used in the Dell Latitude D820 - although
-most of the timeouts are returned in usecs as per the spec, one is
-apparently returned in msecs, which results in a too-small value leading
-to a timeout when the code treats it as usecs. To prevent a regression,
-we check for the known too-short value and adjust it to a value that makes
-things work.
-
-Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
-Cc: Marcin Obara <marcin_obara@users.sourceforge.net>
-Cc: 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>
-Signed-off-by: Jiri Slaby <jslaby@suse.cz>
----
- drivers/char/tpm/tpm.c | 7 +++++++
- 1 files changed, 7 insertions(+), 0 deletions(-)
-
-diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
-index 6b5a0e0..aa899ce 100644
---- a/drivers/char/tpm/tpm.c
-+++ b/drivers/char/tpm/tpm.c
-@@ -557,6 +557,13 @@ duration:
- usecs_to_jiffies(be32_to_cpu
- (*((__be32 *) (data +
- TPM_GET_CAP_RET_UINT32_1_IDX))));
-+ /* The Broadcom BCM0102 chipset in a Dell Latitude D820 gets the above
-+ * value wrong and apparently reports msecs rather than usecs. So we
-+ * fix up the resulting too-small TPM_SHORT value to make things work.
-+ */
-+ if (chip->vendor.duration[TPM_SHORT] < (HZ/100))
-+ chip->vendor.duration[TPM_SHORT] = HZ;
-+
- chip->vendor.duration[TPM_MEDIUM] =
- usecs_to_jiffies(be32_to_cpu
- (*((__be32 *) (data +
---
-1.6.0.2
-