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Merge tag 'optee-bus-for-v5.9' of git://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers

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Enable multi-stage OP-TEE bus enumeration

Probes drivers on the OP-TEE bus in two steps. First for drivers which
do not depend on tee-supplicant. After tee-supplicant has been started
probe the devices which do depend on tee-supplicant.

Also introduces driver which uses an OP-TEE based fTPM Trusted
Application depends on tee-supplicant NV RAM implementation based on
RPMB secure storage.

* tag 'optee-bus-for-v5.9' of git://git.linaro.org/people/jens.wiklander/linux-tee:
  tpm_ftpm_tee: register driver on TEE bus
  optee: enable support for multi-stage bus enumeration
  optee: use uuid for sysfs driver entry

Link: https://lore.kernel.org/r/20200710085230.GA1312913@jade
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann
2020-07-13 15:11:42 +02:00
parent 86aa160820 9f1944c23c
commit 38d9dff186
6 changed files with 119 additions and 35 deletions
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Documentation/ABI/testing/sysfs-bus-optee-devices Normal file
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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.