Adds support in the SMC based OP-TEE driver to receive asynchronous
notifications from secure world using an edge-triggered interrupt as
delivery mechanism.
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Merge tag 'optee-async-notif-for-v5.17' of https://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers
OP-TEE Asynchronous notifications from secure world
Adds support in the SMC based OP-TEE driver to receive asynchronous
notifications from secure world using an edge-triggered interrupt as
delivery mechanism.
* tag 'optee-async-notif-for-v5.17' of https://git.linaro.org/people/jens.wiklander/linux-tee:
optee: Fix NULL but dereferenced coccicheck error
optee: add asynchronous notifications
optee: separate notification functions
tee: export teedev_open() and teedev_close_context()
tee: fix put order in teedev_close_context()
dt-bindings: arm: optee: add interrupt property
docs: staging/tee.rst: add a section on OP-TEE notifications
Link: https://lore.kernel.org/r/20211213102359.GA1638682@jade
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
c6e5bdae04