diff options
| author | Igor Skalkin <igor.skalkin@opensynergy.com> | 2021-08-03 14:10:22 +0100 |
|---|---|---|
| committer | Sudeep Holla <sudeep.holla@arm.com> | 2021-08-05 10:23:23 +0100 |
| commit | 60625667c439e6e1945d464b6eb296d144c5cb2a (patch) | |
| tree | 55c2ba9d4f78728edfb7f271fe12773a6f7c5cc7 /Documentation/devicetree/bindings/firmware | |
| parent | 7885281260f9b952dc66b67182a2218b01e7859f (diff) | |
dt-bindings: arm: Add virtio transport for SCMI
Document the properties for arm,scmi-virtio compatible nodes.
The backing virtio SCMI device is described in patch [1].
While doing that, make shmem property required only for pre-existing
mailbox and smc transports, since virtio-scmi does not need it.
[1] https://lists.oasis-open.org/archives/virtio-comment/202102/msg00018.html
Link: https://lore.kernel.org/r/20210803131024.40280-14-cristian.marussi@arm.com
Co-developed-by: Peter Hilber <peter.hilber@opensynergy.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Igor Skalkin <igor.skalkin@opensynergy.com>
[ Peter: Adapted patch for submission to upstream. ]
Signed-off-by: Peter Hilber <peter.hilber@opensynergy.com>
[ Cristian: converted to yaml format, moved shmen required property. ]
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Diffstat (limited to 'Documentation/devicetree/bindings/firmware')
| -rw-r--r-- | Documentation/devicetree/bindings/firmware/arm,scmi.yaml | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml index cebf6ffe70d5..5c4c6782e052 100644 --- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml +++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml @@ -34,6 +34,10 @@ properties: - description: SCMI compliant firmware with ARM SMC/HVC transport items: - const: arm,scmi-smc + - description: SCMI compliant firmware with SCMI Virtio transport. + The virtio transport only supports a single device. + items: + - const: arm,scmi-virtio interrupts: description: @@ -172,6 +176,7 @@ patternProperties: Each sub-node represents a protocol supported. If the platform supports a dedicated communication channel for a particular protocol, then the corresponding transport properties must be present. + The virtio transport does not support a dedicated communication channel. properties: reg: @@ -195,7 +200,6 @@ patternProperties: required: - compatible - - shmem if: properties: @@ -209,6 +213,7 @@ then: required: - mboxes + - shmem else: if: @@ -219,6 +224,7 @@ else: then: required: - arm,smc-id + - shmem examples: - | |