linux-kernel - [PATCH v1 3/3] dt-bindings: arm: add property for selecting funnel output port

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Message-Id: <1620644727-29279-4-git-send-email-taozha@codeaurora.org>
Date:   Mon, 10 May 2021 19:05:27 +0800
From:   Tao Zhang <taozha@...eaurora.org>
To:     Mathieu Poirier <mathieu.poirier@...aro.org>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc:     Tao Zhang <taozha@...eaurora.org>,
        Mike Leach <mike.leach@...aro.org>,
        Leo Yan <leo.yan@...aro.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        coresight@...ts.linaro.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org,
        Tingwei Zhang <tingwei@...eaurora.org>,
        Mao Jinlong <jinlmao@...eaurora.org>,
        Yuanfang Zhang <zhangyuanfang@...eaurora.org>
Subject: [PATCH v1 3/3] dt-bindings: arm: add property for selecting funnel output port

Add property "source" for coresight funnel device. Since software
support to multiple-outputs configuration, this property allows
selecting the output port according to source.

Signed-off-by: Tao Zhang <taozha@...eaurora.org>
---
 Documentation/devicetree/bindings/arm/coresight.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/coresight.txt b/Documentation/devicetree/bindings/arm/coresight.txt
index d711676..4bf9314 100644
--- a/Documentation/devicetree/bindings/arm/coresight.txt
+++ b/Documentation/devicetree/bindings/arm/coresight.txt
@@ -134,6 +134,11 @@ its hardware characteristcs.
 	  will lose register context when AMBA clock is removed which is observed
 	  in some replicator designs.
 
+* Optional properties for funnels:
+
+	* source: specifies the source that binds to this output port. Only
+	  trace from that source routes to this output port.
+
 Graph bindings for Coresight
 -------------------------------
 
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