[PATCH v3 3/7] dt-bindings: firmware: arm,scmi: Introduce more transport properties
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DORMANTno replies
LANDED: 6 (6M)
From: Cristian Marussi <cristian.marussi@arm.com>
Date: 2024-10-28 12:02:13
Also in:
arm-scmi, linux-arm-kernel, lkml
Subsystem:
open firmware and flattened device tree bindings, system control & power/management interface (scpi/scmi) message protocol drivers, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Sudeep Holla, Linus Torvalds
Revision v3 of 3 in this series; 1 review trailer (1 from subsystem maintainers); landed in mainline as 5654d37268bc on 2024-10-28.
Revisions (3)
- v1 [diff vs current]
- v2 [diff vs current]
- v3 current
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. Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> --- 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:
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2.47.0