linux-kernel - Re: [PATCH v2 1/2] dt-bindings: arm: Add Qualcomm extended CTI

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Message-ID: <fe714aaf-8e0b-432e-b238-240b46be64e2@quicinc.com>
Date: Tue, 6 May 2025 14:20:16 +0800
From: Jinlong Mao <quic_jinlmao@...cinc.com>
To: Krzysztof Kozlowski <krzk@...nel.org>
CC: 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>,
        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>
Subject: Re: [PATCH v2 1/2] dt-bindings: arm: Add Qualcomm extended CTI



On 2025/5/2 14:43, Krzysztof Kozlowski wrote:
> On Tue, Apr 29, 2025 at 12:18:40AM GMT, Mao Jinlong wrote:
>> Add Qualcomm extended CTI support in CTI binding file. Qualcomm
>> extended CTI supports up to 128 triggers.
>>
>> Signed-off-by: Mao Jinlong <quic_jinlmao@...cinc.com>
>> ---
>>   Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml | 4 +++-
>>   1 file changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml
>> index 2d5545a2b49c..1aa27461f5bc 100644
>> --- a/Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml
>> +++ b/Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml
>> @@ -84,7 +84,9 @@ properties:
>>             - const: arm,coresight-cti
>>             - const: arm,primecell
>>         - items:
>> -          - const: arm,coresight-cti-v8-arch
>> +          - enum:
>> +              - arm,coresight-cti-v8-arch
>> +              - qcom,coresight-cti-extended
> 
> cpu phandle is not required? Or not even valid?

cpu phandle is not required for exteneded CTI.

> 
> Best regards,
> Krzysztof
>