diff options
| author |   Arnd Bergmann <arnd@arndb.de> | 2021-12-14 11:27:38 +0100 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2021-12-14 11:27:39 +0100 |
| commit | c6e5bdae04a308942e755d53c5cc73d9f2fbf167 (patch) | |
| tree | 419cf6293a1f74171c921480917cb78cb10c7360 /Documentation/devicetree | |
| parent | Merge tag 'zynqmp-soc-for-v5.17' of https://github.com/Xilinx/linux-xlnx into arm/drivers (diff) | |
| parent | optee: Fix NULL but dereferenced coccicheck error (diff) | |
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>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/arm/firmware/linaro,optee-tz.yaml | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/firmware/linaro,optee-tz.yaml b/Documentation/devicetree/bindings/arm/firmware/linaro,optee-tz.yaml index c24047c1fdd5..9a426110a14a 100644 --- a/Documentation/devicetree/bindings/arm/firmware/linaro,optee-tz.yaml +++ b/Documentation/devicetree/bindings/arm/firmware/linaro,optee-tz.yaml @@ -24,6 +24,12 @@ properties: compatible: const: linaro,optee-tz + interrupts: + maxItems: 1 + description: | + This interrupt which is used to signal an event by the secure world + software is expected to be edge-triggered. + method: enum: [smc, hvc] description: | @@ -42,10 +48,12 @@ additionalProperties: false examples: - | + #include <dt-bindings/interrupt-controller/arm-gic.h> firmware { optee { compatible = "linaro,optee-tz"; method = "smc"; + interrupts = <GIC_SPI 187 IRQ_TYPE_EDGE_RISING>; }; }; |