Depending on specific hardware and firmware design choices, it may be
possible for different platforms to end up having different requirements
regarding the same transport characteristics.
Introduce max-msg-size and max-msg properties to describe such platform
specific transport constraints, since they cannot be discovered otherwise.
Cc: devicetree@xxxxxxxxxxxxxxx
Cc: Rob Herring (Arm) <robh@xxxxxxxxxx>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Signed-off-by: Cristian Marussi <cristian.marussi@xxxxxxx>
---
.../devicetree/bindings/firmware/arm,scmi.yaml | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
index 54d7d11bfed4..42852ed887f2 100644
--- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
+++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
@@ -131,6 +131,22 @@ properties:
be a non-zero value if set.
minimum: 1
+ max-msg-size:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ An optional value, expressed in bytes, representing the maximum size
+ allowed for the payload of messages transmitted on this transport.
+ If set it is recommended to be greater or equal than the minimum size
+ required to support all the messages defined by the set of protocols
+ implemented on this platform.
+
+ max-msg:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ An optional value representing the maximum number of concurrent in-flight
+ messages allowed by this transport. If set, the value should be non-zero.
+ minimum: 1
+
arm,smc-id:
$ref: /schemas/types.yaml#/definitions/uint32
description:
--
2.46.1
