tpm: Enable CLKRUN protocol for Braswell systems

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To overcome a hardware limitation on Intel Braswell systems,
disable CLKRUN protocol during TPM transactions and re-enable
once the transaction is completed.

Signed-off-by: Azhar Shaikh <azhar.shaikh@intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>

...

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Azhar Shaikh 2017-06-18 19:17:59 -07:00 • committed by James Morris

parent f128480f39

commit 5e572cab92

2 changed files with 117 additions and 0 deletions

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4

drivers/char/tpm/tpm.h

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113

drivers/char/tpm/tpm_tis.c

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