linux-kernel - Re: [PATCH V8 1/8] PM / devfreq: Add cpu based scaling support to passive

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Message-ID: <cfdd3973-e4a7-8c09-8a7e-57118a7a3b9b@samsung.com>
Date:   Thu, 8 Apr 2021 11:47:02 +0900
From:   Chanwoo Choi <cw00.choi@...sung.com>
To:     "andrew-sh.cheng" <andrew-sh.cheng@...iatek.com>
Cc:     MyungJoo Ham <myungjoo.ham@...sung.com>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Nishanth Menon <nm@...com>, Stephen Boyd <sboyd@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        srv_heupstream@...iatek.com, Sibi Sankar <sibis@...eaurora.org>
Subject: Re: [PATCH V8 1/8] PM / devfreq: Add cpu based scaling support to
 passive_governor

On 4/1/21 9:16 AM, Chanwoo Choi wrote:
> On 3/31/21 10:03 PM, andrew-sh.cheng wrote:
>> On Wed, 2021-03-31 at 17:35 +0900, Chanwoo Choi wrote:
>>> On 3/31/21 5:27 PM, Chanwoo Choi wrote:
>>>> Hi,
>>>>
>>>> On 3/31/21 5:03 PM, andrew-sh.cheng wrote:
>>>>> On Thu, 2021-03-25 at 17:14 +0900, Chanwoo Choi wrote:
>>>>>> Hi,
>>>>>>
>>>>>> You are missing to add these patches to linux-pm mailing list.
>>>>>> Need to send them to linu-pm ML.
>>>>>>
>>>>>> Also, before received this series, I tried to clean-up these patches
>>>>>> on testing branch[1]. So that I add my comment with my clean-up case.
>>>>>> [1] https://urldefense.com/v3/__https://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux.git/log/?h=devfreq-testing-passive-gov__;!!CTRNKA9wMg0ARbw!zIrzeDp9vPnm1_SDzVPuzqdHn3zWie9DnfBXaA-j9-CSrVc6aR9_rJQQiw81_CgAPh9XRRs$ 
>>>>>>
>>>>>> And 'Saravana Kannan <skannan@...eaurora.org>' is wrong email address.
>>>>>> Please update the email or drop this email.
>>>>>
>>>>> Hi Chanwoo,
>>>>>
>>>>> Thank you for the advices.
>>>>> I will resend patch v9 (add to linux-pm ML), remove this patch, and note
>>>>> that my patch set base on
>>>>> https://urldefense.com/v3/__https://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux.git/log/?h=devfreq-testing-passive-gov__;!!CTRNKA9wMg0ARbw!yUlsuxrL5PcbF7o6A9DlCfvoA6w8V8VXKjYIybYyiJg3D0HM-lI2xRuxLUV6b3UJ8WFhg_g$ 
>>>>
>>>> I has not yet test this patch[1] on devfreq-testing-passive-gov branch.
>>>> So that if possible, I'd like you to test your patches with this patch[1] 
>>>> and then if there is no problem, could you send the next patches with patch[1]?
>>>>
>>>> [1]https://urldefense.com/v3/__https://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux.git/commit/?h=devfreq-testing-passive-gov&id=39c80d11a8f42dd63ecea1e0df595a0ceb83b454__;!!CTRNKA9wMg0ARbw!yUlsuxrL5PcbF7o6A9DlCfvoA6w8V8VXKjYIybYyiJg3D0HM-lI2xRuxLUV6b3UJR2cQqZs$ 
>>>
>>>
>>> Sorry for the confusion. I make the devfreq-testing-passive-gov[1]
>>> branch based on latest devfreq-next branch.
>>> [1] https://urldefense.com/v3/__https://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux.git/log/?h=devfreq-testing-passive-gov__;!!CTRNKA9wMg0ARbw!yUlsuxrL5PcbF7o6A9DlCfvoA6w8V8VXKjYIybYyiJg3D0HM-lI2xRuxLUV6b3UJ8WFhg_g$ 
>>>
>>> First of all, if possible, I want to test them[1] with your patches in this series.
>>> And then if there are no any problem, please let me know. After confirmed from you,
>>> I'll send the patches of devfreq-testing-passive-gov[1] branch.
>>> How about that?
>>>
>> Hi Chanwoo~
>>
>> We will use this on Google Chrome project.
>> Google Hsin-Yi has test your patch + my patch set v8 [2~8]
>>
>>     make sure cci devfreqs runs with cpufreq.
>>     suspend resume
>>     speedometer2 benchmark
>> It is okay.
>>
>> Please send the patches of devfreq-testing-passive-gov[1] branch.
>>
>> I will send patch v9 base on yours latter.
> 
> Thanks for your test. I'll send the patches today.

I'm sorry for delay because when I tested the patches
for devfreq parent type on Odroid-xu3, there are some problem
related to lazy linking of OPP. So I'm trying to analyze them.
Unfortunately, we need to postpone these patches to next linux
version.


[snip]

-- 
Best Regards,
Chanwoo Choi
Samsung Electronics