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dt-bindings: arm: Add smc/hvc transport for SCMI

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SCMI could use SMC/HVC as tranports. Since there is no standardized
SMC/HVC function identifier for the same, we need to use vendor
specific id. Add the same into the devicetree binding document.

Also add arm,scmi-smc compatible string for smc/hvc transport

Link: https://lore.kernel.org/r/1583673879-20714-2-git-send-email-peng.fan@nxp.com
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
[sudeep.holla: reworded commit log and subject]
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
This commit is contained in:
Peng Fan 2020-03-08 21:24:38 +08:00 committed by Sudeep Holla
parent 8f3d9f3542
commit b953dceadd
1 changed files with 2 additions and 1 deletions
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Documentation/devicetree/bindings/arm/arm,scmi.txt
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@ -14,7 +14,7 @@ Required properties:
The scmi node with the following properties shall be under the /firmware/ node.
- compatible : shall be "arm,scmi"
- compatible : shall be "arm,scmi" or "arm,scmi-smc" for smc/hvc transports
- mboxes: List of phandle and mailbox channel specifiers. It should contain
exactly one or two mailboxes, one for transmitting messages("tx")
and another optional for receiving the notifications("rx") if
@ -25,6 +25,7 @@ The scmi node with the following properties shall be under the /firmware/ node.
protocol identifier for a given sub-node.
- #size-cells : should be '0' as 'reg' property doesn't have any size
associated with it.
- arm,smc-id : SMC id required when using smc or hvc transports
Optional properties: