Merge tag 'ffa-notif-for-v6.8' of https://git.linaro.org/people/jens.wiklander/linux...

Merge tag 'ffa-notif-for-v6.8' of https://git.linaro.org/people/jens.wiklander/linux-tee into soc/drivers

OP-TEE: asynchronous notifications with FF-A

Add support for asynchronous notifications in the OP-TEE FF-A driver. This
is the FF-A counterpart to the asynchronous notifications already
available in the OP-TEE SMC ABI.

* tag 'ffa-notif-for-v6.8' of https://git.linaro.org/people/jens.wiklander/linux-tee:
  optee: ffa_abi: add asynchronous notifications
  optee: provide optee_do_bottom_half() as a common function

Link: https://lore.kernel.org/r/20231211105249.GA587253@rayden
Signed-off-by: Arnd Bergmann <arnd@arndb.de>