linux-kernel - Re: [PATCH v1 1/3] dt-bindings: arm: Add trace-id for coresight dummy source

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Date: Thu, 16 May 2024 15:41:14 +0200
From: James Clark <james.clark@....com>
To: Mao Jinlong <quic_jinlmao@...cinc.com>
Cc: 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>,
 Suzuki K Poulose <suzuki.poulose@....com>, Mike Leach
 <mike.leach@...aro.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>,
 Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Subject: Re: [PATCH v1 1/3] dt-bindings: arm: Add trace-id for coresight dummy
 source



On 16/05/2024 04:56, Mao Jinlong wrote:
> Add trace-id for static id support to coresight dummy source.
> 
> 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..9adf34ea450e 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:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    description:
> +      If dummy source needs static id support, use this to set trace id.
> +      The range is 1 to 127.
> +

The max is CORESIGHT_TRACE_ID_RES_TOP, so this would be 1 to 111 (inclusive)

>    out-ports:
>      $ref: /schemas/graph.yaml#/properties/ports
>