Hello arm-soc maintainers,

Please pull these patches which adds support for asynchronous notifications from OP-TEE in secure world to the OP-TEE driver.

An edge-triggered interrupt is used to notify the the driver.

These patches has been in linux-next for a few weeks already.

Thanks, Jens

The following changes since commit fa55b7dcdc43c1aa1ba12bca9d2dd4318c2a0dbf:

Linux 5.16-rc1 (2021-11-14 13:56:52 -0800)

are available in the Git repository at:

https://git.linaro.org/people/jens.wiklander/linux-tee.git tags/optee-async-notif-for-v5.17

for you to fetch changes up to b98aee466d194788bd651cb375b0e0f7e0e69865:

optee: Fix NULL but dereferenced coccicheck error (2021-11-29 22:02:25 +0100)

---------------------------------------------------------------- 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.

---------------------------------------------------------------- Jens Wiklander (6): docs: staging/tee.rst: add a section on OP-TEE notifications dt-bindings: arm: optee: add interrupt property tee: fix put order in teedev_close_context() tee: export teedev_open() and teedev_close_context() optee: separate notification functions optee: add asynchronous notifications

Yang Li (1): optee: Fix NULL but dereferenced coccicheck error

.../bindings/arm/firmware/linaro,optee-tz.yaml | 8 + Documentation/staging/tee.rst | 30 +++ drivers/tee/optee/Makefile | 1 + drivers/tee/optee/core.c | 2 +- drivers/tee/optee/ffa_abi.c | 6 +- drivers/tee/optee/notif.c | 125 +++++++++++ drivers/tee/optee/optee_msg.h | 9 + drivers/tee/optee/optee_private.h | 28 ++- drivers/tee/optee/optee_rpc_cmd.h | 31 +-- drivers/tee/optee/optee_smc.h | 75 ++++++- drivers/tee/optee/rpc.c | 71 +----- drivers/tee/optee/smc_abi.c | 237 ++++++++++++++++++--- drivers/tee/tee_core.c | 10 +- include/linux/tee_drv.h | 14 ++ 14 files changed, 523 insertions(+), 124 deletions(-) create mode 100644 drivers/tee/optee/notif.c