From 99a064fb3a73920262119efead4d5048b7da2f55 Mon Sep 17 00:00:00 2001 From: Jim Quinlan Date: Tue, 22 Dec 2020 09:56:02 -0500 Subject: [PATCH] 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 Acked-by: Florian Fainelli Signed-off-by: Jim Quinlan [sudeep.holla: minor wording changes to the commit log] Signed-off-by: Sudeep Holla --- Documentation/devicetree/bindings/arm/arm,scmi.txt | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/arm/arm,scmi.txt b/Documentation/devicetree/bindings/arm/arm,scmi.txt index b5ce5b3..667d58e 100644 --- a/Documentation/devicetree/bindings/arm/arm,scmi.txt +++ b/Documentation/devicetree/bindings/arm/arm,scmi.txt @@ -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. -- 2.7.4