diff mbox series

[v1,1/2] dt-bindings: arm: Add optional interrupt to smc/hvc SCMI transport

Message ID 20201110183827.19731-1-james.quinlan@broadcom.com
State New
Headers show
Series [v1,1/2] dt-bindings: arm: Add optional interrupt to smc/hvc SCMI transport | expand

Commit Message

Jim Quinlan Nov. 10, 2020, 6:38 p.m. UTC
This change allows the SCMI "platform" to use the smc/hvc transport and to
optionally indicate the completion of an SCMI message with an interrupt.
This is in contrast to the nominal case where the return of the SMC call
indicates message completion.

Signed-off-by: Jim Quinlan <james.quinlan@broadcom.com>
---
 Documentation/devicetree/bindings/arm/arm,scmi.txt | 8 ++++++++
 1 file changed, 8 insertions(+)
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/arm/arm,scmi.txt b/Documentation/devicetree/bindings/arm/arm,scmi.txt
index 55deb68230eb..d3b0c9f387fe 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 : the name must be "msg-serviced".
+
+
 See Documentation/devicetree/bindings/mailbox/mailbox.txt for more details
 about the generic mailbox controller and client driver bindings.