linux-kernel - [PATCH v1 2/6] dt-bindings: firmware: arm,scmi: Introduce property max-rx-timeout-ms

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Message-ID: <20240730144707.1647025-3-cristian.marussi@arm.com>
Date: Tue, 30 Jul 2024 15:47:03 +0100
From: Cristian Marussi <cristian.marussi@....com>
To: linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	arm-scmi@...r.kernel.org,
	devicetree@...r.kernel.org
Cc: sudeep.holla@....com,
	james.quinlan@...adcom.com,
	f.fainelli@...il.com,
	vincent.guittot@...aro.org,
	etienne.carriere@...com,
	peng.fan@....nxp.com,
	michal.simek@....com,
	quic_sibis@...cinc.com,
	quic_nkela@...cinc.com,
	dan.carpenter@...aro.org,
	souvik.chakravarty@....com,
	robh@...nel.org,
	krzk+dt@...nel.org,
	Peng Fan <peng.fan@....com>,
	Cristian Marussi <cristian.marussi@....com>
Subject: [PATCH v1 2/6] dt-bindings: firmware: arm,scmi: Introduce property max-rx-timeout-ms

From: Peng Fan <peng.fan@....com>

System Controller Management Interface(SCMI) firmwares might have different
designs depending on the platform: the maximum receive channel timeout
value might vary depending on the specific underlying hardware and firmware
design choices.

Introduce the general property max-rx-timeout-ms property to describe the
transport needs of a specific platform design.

Reviewed-by: Rob Herring (Arm) <robh@...nel.org>
Signed-off-by: Peng Fan <peng.fan@....com>
[Cristian: reworded commit message, s/mailbox/transport in description]
Signed-off-by: Cristian Marussi <cristian.marussi@....com>
---
 Documentation/devicetree/bindings/firmware/arm,scmi.yaml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
index 4d823f3b1f0e..7c9fa07e2ff2 100644
--- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
+++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
@@ -121,6 +121,13 @@ properties:
       atomic mode of operation, even if requested.
     default: 0
 
+  max-rx-timeout-ms:
+    description:
+      An optional time value, expressed in milliseconds, representing the
+      transport maximum timeout value for the receive channel. The value should
+      be a non-zero value if set.
+    minimum: 1
+
   arm,smc-id:
     $ref: /schemas/types.yaml#/definitions/uint32
     description:
-- 
2.45.2