From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Date: Wed, 21 Nov 2012 20:54:33 +0000 (-0700)
Subject: TPM: Issue TPM_STARTUP at driver load if the TPM has not been started
X-Git-Tag: v3.9-rc1~137^2~26
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c584af1926b7626ef3bdab3354382cb2bd434d36;p=pandora-kernel.git

TPM: Issue TPM_STARTUP at driver load if the TPM has not been started

The TPM will respond to TPM_GET_CAP with TPM_ERR_INVALID_POSTINIT if
TPM_STARTUP has not been issued. Detect this and automatically
issue TPM_STARTUP.

This is for embedded applications where the kernel is the first thing
to touch the TPM.

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Tested-by: Peter Huewe <peter.huewe@infineon.com>
Reviewed-by: Peter Huewe <peter.huewe@infineon.com>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
---

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