linux-kernel - Re: [PATCH v3 7/8] dt-bindings: arm: Add support for TPDM CMB MSR register

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Date: Mon, 18 Dec 2023 20:17:46 +0800
From: Jinlong Mao <quic_jinlmao@...cinc.com>
To: Suzuki K Poulose <suzuki.poulose@....com>,
        Tingwei Zhang
	<quic_tingweiz@...cinc.com>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski@...aro.org>,
        Tao Zhang <quic_taozha@...cinc.com>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Alexander Shishkin
	<alexander.shishkin@...ux.intel.com>,
        Konrad Dybcio <konradybcio@...il.com>,
        Mike Leach <mike.leach@...aro.org>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
CC: 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>, <devicetree@...r.kernel.org>,
        Yuanfang Zhang <quic_yuanfang@...cinc.com>,
        Trilok Soni <quic_tsoni@...cinc.com>,
        Song Chai <quic_songchai@...cinc.com>, <linux-arm-msm@...r.kernel.org>,
        <andersson@...nel.org>
Subject: Re: [PATCH v3 7/8] dt-bindings: arm: Add support for TPDM CMB MSR
 register



On 12/18/2023 7:56 PM, Suzuki K Poulose wrote:
> Hi Tingwei Zhang
> 
> On 18/12/2023 11:23, Tingwei Zhang wrote:
>> On 12/18/2023 6:47 PM, Suzuki K Poulose wrote:
>>> Tao Zhang,
>>>
>>> On 21/11/2023 07:24, Krzysztof Kozlowski wrote:
>>>> On 21/11/2023 03:24, Tao Zhang wrote:
>>>>> Add property "qcom,cmb_msr_num" to support CMB MSR(mux select 
>>>>> register)
>>>>> for TPDM. It specifies the number of CMB MSR registers supported by
>>>>> the TDPM.
>>>>>
>>>>> Signed-off-by: Tao Zhang <quic_taozha@...cinc.com>
>>>>> Signed-off-by: Mao Jinlong <quic_jinlmao@...cinc.com>
>>>>> ---
>>>>
>>>> I prefer not to take any new Qualcomm Coresight bindings or Qualcomm 
>>>> SoC
>>>> DTS nodes with Coresight till we fix all existing warnings. I don't 
>>>> know
>>>> how to fix them, so I need help with them. No such fixing happened so
>>>> far from Qcom, so pushback is my only way to get any attention.
>>>>
>>>> I already commented on this in other email thread.
>>>
>>> Are you addressing this ?
>> The DT warning is fixed in 
>> https://lore.kernel.org/linux-arm-msm/20231210072633.4243-1-quic_jinlmao@quicinc.com/.
>> It's applied to linux-arm-msm yesterday.
> 
> How are you supporting remote-etm ? We haven't merged the support for it 
> in drivers ? We haven't even reviewed the remote-etm support patches ? 
> Why weren't the coresight maintainers Cc ed on the "new" binding support ?
> 
> Suzuki
> 
> 
Hi Suzuki,

Sorry for missing coresight maintainers in the remote-etm binding patch.
 From the comments, we can add binding for the connected hardware first.

https://lkml.org/lkml/2023/11/30/539

Thanks
Jinlong Mao

> 
>>>
>>> Suzuki
>>>
>>>>
>>>> Best regards,
>>>> Krzysztof
>>>>
>>>
>>
>