Commit 99a064fb authored Dec 22, 2020 by Jim Quinlan Committed by Sudeep Holla Jan 05, 2021

dt-bindings: arm: Add optional interrupt to smc/hvc SCMI transport

In the normal use of smc/hvc as SCMI transport, the message completion
is indicated by the return of the SMC call. This binding provides for
an optional interrupt named "a2p" which can be used instead to indicate
the completion of a message.

Link: https://lore.kernel.org/r/20201222145603.40192-2-jim2101024@gmail.com


Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
[sudeep.holla: minor wording changes to the commit log]
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

parent 5c8fe583

Documentation/devicetree/bindings/arm/arm,scmi.txt

+8 −0

Original line number	Diff line number	Diff line
		@@ -31,6 +31,14 @@ Optional properties:

		- mbox-names: shall be "tx" or "rx" depending on mboxes entries.

		- interrupts : when using smc or hvc transports, this optional
		property indicates that msg completion by the platform is indicated
		by an interrupt rather than by the return of the smc call. This
		should not be used except when the platform requires such behavior.

		- interrupt-names : if "interrupts" is present, interrupt-names must also
		be present and have the value "a2p".

		See Documentation/devicetree/bindings/mailbox/mailbox.txt for more details
		about the generic mailbox controller and client driver bindings.