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Message-ID: <ec586900-f4eb-18ee-57cb-17b9a7193b1e@quicinc.com>
Date:   Tue, 24 May 2022 15:15:37 +0800
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Subject: Re: [PATCH v7 04/10] coresight-tpdm: Add DSB dataset support
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>
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>,
        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 <bjorn.andersson@linaro.org>
References: <20220509133947.20987-1-quic_jinlmao@quicinc.com>
 <20220509133947.20987-5-quic_jinlmao@quicinc.com>
 <00c30f02-de4e-6bd1-f220-00ae114ef91f@arm.com>
 <c6c37c9c-c68d-a945-d4df-526212924678@arm.com>
From:   Jinlong Mao <quic_jinlmao@quicinc.com>
In-Reply-To: <c6c37c9c-c68d-a945-d4df-526212924678@arm.com>
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Hi Suzuki,

On 5/23/2022 5:24 PM, Suzuki K Poulose wrote:
> On 23/05/2022 10:11, Suzuki K Poulose wrote:
>> Hi
>>
>> On 09/05/2022 14:39, Mao Jinlong wrote:
>>> TPDM serves as data collection component for various dataset types.
>>> DSB(Discrete Single Bit) is one of the dataset types. DSB subunit
>>> can be enabled for data collection by writing 1 to the first bit of
>>> DSB_CR register. This change is to add enable/disable function for
>>> DSB dataset by writing DSB_CR register.
>>
>> The patch looks good to me, except for some minor comment below.
>>
>>>
>>> Signed-off-by: Tao Zhang <quic_taozha@quicinc.com>
>>> Signed-off-by: Mao Jinlong <quic_jinlmao@quicinc.com>
>>> ---
>>>   drivers/hwtracing/coresight/coresight-tpdm.c | 58 
>>> ++++++++++++++++++++
>>>   drivers/hwtracing/coresight/coresight-tpdm.h | 23 ++++++++
>>>   2 files changed, 81 insertions(+)
>>>
>>> diff --git a/drivers/hwtracing/coresight/coresight-tpdm.c 
>>> b/drivers/hwtracing/coresight/coresight-tpdm.c
>>> index 6a4e2a35053d..70df888ac565 100644
>>> --- a/drivers/hwtracing/coresight/coresight-tpdm.c
>>> +++ b/drivers/hwtracing/coresight/coresight-tpdm.c
>>> @@ -20,7 +20,28 @@
>>>   DEFINE_CORESIGHT_DEVLIST(tpdm_devs, "tpdm");
>>> +static void tpdm_enable_dsb(struct tpdm_drvdata *drvdata)
>>> +{
>>> +    u32 val;
>>> +
>>> +    /* Set the enable bit of DSB control register to 1 */
>>> +    val = readl_relaxed(drvdata->base + TPDM_DSB_CR);
>>> +    val |= TPDM_DSB_CR_ENA;
>>> +    writel_relaxed(val, drvdata->base + TPDM_DSB_CR);
>>> +}
>>> +
>
>
>
>>>   /* TPDM enable operations */
>>> +static void _tpdm_enable(struct tpdm_drvdata *drvdata)
>
>
>>>   /* TPDM disable operations */
>>> +static void _tpdm_disable(struct tpdm_drvdata *drvdata)
>
> Missed this. The general convention is to use:
>
> __tpdm_disable()
> __tpdm_enable();
I will address your comments.
>
> So, please switch to the names above.
>
> Suzuki