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Koen Kooi
ebbeb55561
Also add script used to generate patches and SRC_URI Signed-off-by: Koen Kooi <koen@dominion.thruhere.net> Signed-off-by: Denys Dmytriyenko <denys@ti.com>
38 lines
1.3 KiB
Diff
38 lines
1.3 KiB
Diff
From caa437611de9fbff82c56157c92863f07b3d39db Mon Sep 17 00:00:00 2001
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From: Stefan Berger <stefanb@linux.vnet.ibm.com>
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Date: Fri, 11 Nov 2011 12:57:06 -0500
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Subject: [PATCH 22/90] tpm_tis: add delay after aborting command
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commit a927b8131794ee449b7f6666e7ab61301949b20f upstream.
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This patch adds a delay after aborting a command. Some TPMs need
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this and will not process the subsequent command correctly otherwise.
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It's worth noting that a TPM randomly failing to process a command,
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maps to randomly failing suspend/resume operations.
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Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
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Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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---
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drivers/char/tpm/tpm_tis.c | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
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index 3f4051a..c7e5282 100644
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--- a/drivers/char/tpm/tpm_tis.c
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+++ b/drivers/char/tpm/tpm_tis.c
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@@ -432,6 +432,9 @@ static int probe_itpm(struct tpm_chip *chip)
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out:
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itpm = rem_itpm;
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tpm_tis_ready(chip);
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+ /* some TPMs need a break here otherwise they will not work
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+ * correctly on the immediately subsequent command */
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+ msleep(chip->vendor.timeout_b);
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release_locality(chip, chip->vendor.locality, 0);
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return rc;
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--
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1.7.9.4
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