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    Subject[PATCH v8 3/3] tpm: update PPI documentation to address the location change.
    Date
    Updated Documentation/ABI/testing/sysfs-driver-ppi in order to explain
    where PPI attributes are located and how backwards compatiblity is
    addressed.

    Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
    ---
    Documentation/ABI/testing/sysfs-driver-ppi | 19 ++++++++++++-------
    1 file changed, 12 insertions(+), 7 deletions(-)

    diff --git a/Documentation/ABI/testing/sysfs-driver-ppi b/Documentation/ABI/testing/sysfs-driver-ppi
    index 7d1435b..9921ef2 100644
    --- a/Documentation/ABI/testing/sysfs-driver-ppi
    +++ b/Documentation/ABI/testing/sysfs-driver-ppi
    @@ -1,4 +1,4 @@
    -What: /sys/devices/pnp0/<bus-num>/ppi/
    +What: /sys/class/tpm/tpmX/ppi/
    Date: August 2012
    Kernel Version: 3.6
    Contact: xiaoyan.zhang@intel.com
    @@ -8,9 +8,14 @@ Description:
    folder makes sense. The folder path can be got by command
    'find /sys/ -name 'pcrs''. For the detail information of PPI,
    please refer to the PPI specification from
    +
    http://www.trustedcomputinggroup.org/

    -What: /sys/devices/pnp0/<bus-num>/ppi/version
    + In Linux 4.2 ppi was moved to the character device directory.
    + A symlink from tpmX/device/ppi to tpmX/ppi to provide backwards
    + compatibility.
    +
    +What: /sys/class/tpm/tpmX/ppi/version
    Date: August 2012
    Contact: xiaoyan.zhang@intel.com
    Description:
    @@ -18,7 +23,7 @@ Description:
    platform.
    This file is readonly.

    -What: /sys/devices/pnp0/<bus-num>/ppi/request
    +What: /sys/class/tpm/tpmX/ppi/request
    Date: August 2012
    Contact: xiaoyan.zhang@intel.com
    Description:
    @@ -28,7 +33,7 @@ Description:
    integer value range from 1 to 160, and 0 means no request.
    This file can be read and written.

    -What: /sys/devices/pnp0/00:<bus-num>/ppi/response
    +What: /sys/class/tpm/tpmX/ppi/response
    Date: August 2012
    Contact: xiaoyan.zhang@intel.com
    Description:
    @@ -37,7 +42,7 @@ Description:
    : <response description>".
    This file is readonly.

    -What: /sys/devices/pnp0/<bus-num>/ppi/transition_action
    +What: /sys/class/tpm/tpmX/ppi/transition_action
    Date: August 2012
    Contact: xiaoyan.zhang@intel.com
    Description:
    @@ -47,7 +52,7 @@ Description:
    description>".
    This file is readonly.

    -What: /sys/devices/pnp0/<bus-num>/ppi/tcg_operations
    +What: /sys/class/tpm/tpmX/ppi/tcg_operations
    Date: August 2012
    Contact: xiaoyan.zhang@intel.com
    Description:
    @@ -58,7 +63,7 @@ Description:
    This attribute is only supported by PPI version 1.2+.
    This file is readonly.

    -What: /sys/devices/pnp0/<bus-num>/ppi/vs_operations
    +What: /sys/class/tpm/tpmX/ppi/vs_operations
    Date: August 2012
    Contact: xiaoyan.zhang@intel.com
    Description:
    --
    2.1.4


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