Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Message-ID: <185c988d-4213-f1e3-b400-0f86845eaf78@quicinc.com>
Date:   Tue, 17 Jan 2023 11:26:13 +0800
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101
 Thunderbird/91.13.0
Subject: Re: [PATCH v16 6/8] Coresight: Add TPDA link driver
Content-Language: en-US
To:     Suzuki K Poulose <suzuki.poulose@arm.com>,
        Mathieu Poirier <mathieu.poirier@linaro.org>,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>,
        Konrad Dybcio <konradybcio@gmail.com>,
        Mike Leach <mike.leach@linaro.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
CC:     Leo Yan <leo.yan@linaro.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        <coresight@lists.linaro.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
        Tingwei Zhang <quic_tingweiz@quicinc.com>,
        Yuanfang Zhang <quic_yuanfang@quicinc.com>,
        Tao Zhang <quic_taozha@quicinc.com>,
        Trilok Soni <quic_tsoni@quicinc.com>,
        Hao Zhang <quic_hazha@quicinc.com>,
        <linux-arm-msm@vger.kernel.org>,
        Bjorn Andersson <andersson@kernel.org>
References: <20230106092119.20449-1-quic_jinlmao@quicinc.com>
 <20230106092119.20449-7-quic_jinlmao@quicinc.com>
 <c8831ad9-d867-d977-da5f-2cc1b71704cf@arm.com>
From:   Jinlong Mao <quic_jinlmao@quicinc.com>
In-Reply-To: <c8831ad9-d867-d977-da5f-2cc1b71704cf@arm.com>
Content-Type: text/plain; charset="UTF-8"; format=flowed
Content-Transfer-Encoding: 8bit
Precedence: bulk


On 1/16/2023 5:36 PM, Suzuki K Poulose wrote:
> On 06/01/2023 09:21, Mao Jinlong wrote:
>> TPDA(Trace, Profiling and Diagnostics Aggregator) is
>> to provide packetization, funneling and timestamping of
>> TPDM data. Multiple monitors are connected to different
>> input ports of TPDA.This change is to add tpda
>> enable/disable/probe functions for coresight tpda driver.
>>
>>   - - - -         - - - -        - - - -
>> | TPDM 0|      | TPDM 1 |     | TPDM 2|
>>   - - - -         - - - -        - - - -
>>      |               |             |
>>      |_ _ _ _ _ _    |     _ _ _ _ |
>>                  |   |    |
>>                  |   |    |
>>             ------------------
>>            |        TPDA      |
>>             ------------------
>>
>> Signed-off-by: Tao Zhang <quic_taozha@quicinc.com>
>> Signed-off-by: Mao Jinlong <quic_jinlmao@quicinc.com>
>
> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
>
> Btw, do we expect to see these devices on an ACPI system ?

These devices are not supported on an ACPI system.

Thanks
Jinlong Mao
>
> Suzuki