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| author | Maxim Uvarov <maxim.uvarov@linaro.org> | 2020-06-18 16:52:49 +0300 |
|---|---|---|
| committer | Jens Wiklander <jens.wiklander@linaro.org> | 2020-07-10 10:41:48 +0300 |
| commit | 58df195cd47d9b06c7160253d35881c1de90aa9e (patch) | |
| tree | ceb3aa65464c45803d5c8d0ae67bc205dc096003 /Documentation/ABI/testing/sysfs-bus-optee-devices | |
| parent | 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 (diff) | |
| download | linux-58df195cd47d9b06c7160253d35881c1de90aa9e.tar.xz | |
optee: use uuid for sysfs driver entry
With the evolving use-cases for TEE bus, now it's required to support
multi-stage enumeration process. But using a simple index doesn't
suffice this requirement and instead leads to duplicate sysfs entries.
So instead switch to use more informative device UUID for sysfs entry
like:
/sys/bus/tee/devices/optee-ta-<uuid>
Signed-off-by: Maxim Uvarov <maxim.uvarov@linaro.org>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Diffstat (limited to 'Documentation/ABI/testing/sysfs-bus-optee-devices')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-optee-devices | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-optee-devices b/Documentation/ABI/testing/sysfs-bus-optee-devices new file mode 100644 index 000000000000..0f58701367b6 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-optee-devices @@ -0,0 +1,8 @@ +What: /sys/bus/tee/devices/optee-ta-<uuid>/ +Date: May 2020 +KernelVersion 5.8 +Contact: op-tee@lists.trustedfirmware.org +Description: + OP-TEE bus provides reference to registered drivers under this directory. The <uuid> + matches Trusted Application (TA) driver and corresponding TA in secure OS. Drivers + are free to create needed API under optee-ta-<uuid> directory. |