linux-kernel - [PATCH v6 3/5] dt-bindings: arm: Add qcom,qmi-id for remote etm

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Message-ID: <20250711094031.4171091-4-quic_jinlmao@quicinc.com>
Date: Fri, 11 Jul 2025 02:40:29 -0700
From: Mao Jinlong <quic_jinlmao@...cinc.com>
To: Suzuki K Poulose <suzuki.poulose@....com>,
        Mike Leach
	<mike.leach@...aro.org>,
        James Clark <james.clark@...aro.org>, Rob Herring
	<robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
	<conor+dt@...nel.org>,
        Mao Jinlong <quic_jinlmao@...cinc.com>,
        "Alexander
 Shishkin" <alexander.shishkin@...ux.intel.com>,
        Bjorn Andersson
	<andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>
CC: <coresight@...ts.linaro.org>, <linux-arm-kernel@...ts.infradead.org>,
        <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH v6 3/5] dt-bindings: arm: Add qcom,qmi-id for remote etm

Remote etm binding change was merged to fix the dt warning. Driver
changes were not merged at that time. qcom,qmi-instance-id is
required for remote etm driver to find the remote subsystem connection.
It is the instance id used by qmi to communicate with remote processor.

Signed-off-by: Mao Jinlong <quic_jinlmao@...cinc.com>
---
 .../bindings/arm/qcom,coresight-remote-etm.yaml          | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/qcom,coresight-remote-etm.yaml b/Documentation/devicetree/bindings/arm/qcom,coresight-remote-etm.yaml
index 4fd5752978cd..bd78f6bc2fdf 100644
--- a/Documentation/devicetree/bindings/arm/qcom,coresight-remote-etm.yaml
+++ b/Documentation/devicetree/bindings/arm/qcom,coresight-remote-etm.yaml
@@ -20,6 +20,12 @@ properties:
   compatible:
     const: qcom,coresight-remote-etm
 
+  qcom,qmi-instance-id:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      Each remote processor has a unique instance id to establish the
+      QMI connection.
+
   out-ports:
     $ref: /schemas/graph.yaml#/properties/ports
     additionalProperties: false
@@ -32,6 +38,7 @@ properties:
 required:
   - compatible
   - out-ports
+  - qcom,qmi-instance-id
 
 additionalProperties: false
 
@@ -40,6 +47,8 @@ examples:
     etm {
         compatible = "qcom,coresight-remote-etm";
 
+        qcom,qmi-instance-id = <2>;
+
         out-ports {
             port {
                 modem_etm0_out_funnel_modem: endpoint {
-- 
2.25.1