linux-kernel - [PATCH v1 1/3] dt-bindings: arm: qcom,coresight-static-replicator: Add property for source filtering

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Message-ID: <20240705085152.9063-2-quic_taozha@quicinc.com>
Date: Fri, 5 Jul 2024 16:51:50 +0800
From: Tao Zhang <quic_taozha@...cinc.com>
To: Mathieu Poirier <mathieu.poirier@...aro.org>,
        Suzuki K Poulose
	<suzuki.poulose@....com>,
        Alexander Shishkin
	<alexander.shishkin@...ux.intel.com>,
        Mike Leach <mike.leach@...aro.org>, "Rob Herring" <robh+dt@...nel.org>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski+dt@...aro.org>,
        James Clark <james.clark@....com>
CC: Tao Zhang <quic_taozha@...cinc.com>,
        Jinlong Mao
	<quic_jinlmao@...cinc.com>, Leo Yan <leo.yan@...aro.org>,
        <coresight@...ts.linaro.org>, <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        Tingwei Zhang
	<quic_tingweiz@...cinc.com>,
        Yuanfang Zhang <quic_yuanfang@...cinc.com>,
        Trilok Soni <quic_tsoni@...cinc.com>,
        Song Chai <quic_songchai@...cinc.com>, <linux-arm-msm@...r.kernel.org>,
        Jie Gan <quic_jiegan@...cinc.com>
Subject: [PATCH v1 1/3] dt-bindings: arm: qcom,coresight-static-replicator: Add property for source filtering

Add a new property "filter_src" to label the source corresponding
to the output connection for a static replicator. By combining
a funnel and a static replicator in devicetree, a new device that
supports multi-port input and multi-port output is implemented.
In order to match the output port with the input port and
successfully build the trace path, add this new property to
indicate the data source corresponding to this output port.

Signed-off-by: Tao Zhang <quic_taozha@...cinc.com>
---
 .../arm/arm,coresight-static-replicator.yaml   | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-static-replicator.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-static-replicator.yaml
index 1892a091ac35..d9538563f9c6 100644
--- a/Documentation/devicetree/bindings/arm/arm,coresight-static-replicator.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-static-replicator.yaml
@@ -45,7 +45,21 @@ properties:
     patternProperties:
       '^port@[01]$':
         description: Output connections to CoreSight Trace bus
-        $ref: /schemas/graph.yaml#/properties/port
+        $ref: /schemas/graph.yaml#/$defs/port-base
+
+        properties:
+          endpoint:
+            $ref: /schemas/media/video-interfaces.yaml#
+
+            properties:
+              filter_src:
+                $ref: /schemas/types.yaml#/definitions/phandle
+                description:
+                  defines a phandle reference to an associated CoreSight trace device.
+                  When the associated trace device is enabled, then the respective
+                  trace path will be built and enabled.
+
+              remote-endpoint: true
 
 required:
   - compatible
@@ -72,6 +86,7 @@ examples:
                 reg = <0>;
                 replicator_out_port0: endpoint {
                     remote-endpoint = <&etb_in_port>;
+                    filter_src = <&tpdm_video>;
                 };
             };
 
@@ -79,6 +94,7 @@ examples:
                 reg = <1>;
                 replicator_out_port1: endpoint {
                     remote-endpoint = <&tpiu_in_port>;
+                    filter_src = <&tpdm_mdss>;
                 };
             };
         };
-- 
2.17.1