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.
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
---
Cc: Rob Herring <robh@kernel.org>
Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: devicetree@vger.kernel.org
---
v1 --> v2
- added vendor prefix
- dropped warnings about resonable minimum max-msg-size
- clarified the intended usage of max-msg
- fixed Cc to include all maintainers and using correct e-mails
---
.../devicetree/bindings/firmware/arm,scmi.yaml | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
index 54d7d11bfed4..9d6e1147f9e9 100644
--- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
+++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
@@ -131,6 +131,21 @@ properties:
be a non-zero value if set.
minimum: 1
+ arm,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.
+
+ arm,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; this number represents the maximum
+ number of concurrently outstanding messages that the server can handle on
+ this platform. If set, the value should be non-zero.
+ minimum: 1
+
arm,smc-id:
$ref: /schemas/types.yaml#/definitions/uint32
description:
--
2.46.1