From: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Date: Thu, 16 Oct 2008 05:04:35 +0000 (-0700)
Subject: tpm: work around bug in Broadcom BCM0102 chipset
X-Git-Tag: v2.6.28-rc1~335
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=292cf4a8a989cb564a6a5f0ba7a66e08a095afa1;p=pandora-kernel.git

tpm: work around bug in Broadcom BCM0102 chipset

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>
---

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