linux-kernel - Re: [PATCH v2 1/3] dt-bindings: arm: Add trace-id for coresight dummy source

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Message-ID: <20240605161446.GA3260204-robh@kernel.org>
Date: Wed, 5 Jun 2024 10:14:46 -0600
From: Rob Herring <robh@...nel.org>
To: Mao Jinlong <quic_jinlmao@...cinc.com>
Cc: Suzuki K Poulose <suzuki.poulose@....com>,
	Mike Leach <mike.leach@...aro.org>,
	James Clark <james.clark@....com>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	coresight@...ts.linaro.org, linux-arm-kernel@...ts.infradead.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-msm@...r.kernel.org,
	Tingwei Zhang <quic_tingweiz@...cinc.com>,
	Yuanfang Zhang <quic_yuanfang@...cinc.com>,
	Tao Zhang <quic_taozha@...cinc.com>,
	songchai <quic_songchai@...cinc.com>
Subject: Re: [PATCH v2 1/3] dt-bindings: arm: Add trace-id for coresight
 dummy source

On Mon, Jun 03, 2024 at 02:43:50AM -0700, Mao Jinlong wrote:
> Add trace-id for static id support to coresight dummy source.

Why do you need this feature?

> 
> Signed-off-by: Mao Jinlong <quic_jinlmao@...cinc.com>
> ---
>  .../devicetree/bindings/arm/arm,coresight-dummy-source.yaml | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-dummy-source.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-dummy-source.yaml
> index 6745b4cc8f1c..58d5db80926d 100644
> --- a/Documentation/devicetree/bindings/arm/arm,coresight-dummy-source.yaml
> +++ b/Documentation/devicetree/bindings/arm/arm,coresight-dummy-source.yaml
> @@ -38,6 +38,12 @@ properties:
>      enum:
>        - arm,coresight-dummy-source
>  
> +  trace-id:

arm,trace-id

> +    description: If dummy source needs static id support, use this to set trace id.
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    minimum: 1
> +    maximum: 111
> +
>    out-ports:
>      $ref: /schemas/graph.yaml#/properties/ports
>  
> -- 
> 2.41.0
>