ACPI / TPM: detect PPI features by checking availability of _DSM functions

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Detecting physical presence interface features by checking availbility
of corresponding ACPI _DSM functions, it should be more accurate than
checking TPM version number.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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Jiang Liu 2013-12-19 20:38:18 +08:00 • committed by Rafael J. Wysocki

parent 84b1667dea

commit 1569a4c4ce

1 changed files with 19 additions and 26 deletions

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drivers/char/tpm/tpm_ppi.c

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