linux-kernel - Re: [PATCH 05/11] PM / devfreq: use more accurate returned new_freq as resume

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Date:   Wed, 10 Mar 2021 12:07:27 +0900
From:   Chanwoo Choi <cw00.choi@...sung.com>
To:     Dong Aisheng <dongas86@...il.com>,
        Chanwoo Choi <cwchoi00@...il.com>
Cc:     Dong Aisheng <aisheng.dong@....com>,
        Linux PM <linux-pm@...r.kernel.org>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        Sascha Hauer <kernel@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>,
        dl-linux-imx <linux-imx@....com>,
        open list <linux-kernel@...r.kernel.org>,
        myungjoo.ham@...sung.com, kyungmin.park@...sung.com,
        Abel Vesa <abel.vesa@....com>
Subject: Re: [PATCH 05/11] PM / devfreq: use more accurate returned new_freq
 as resume_freq

On 3/10/21 11:43 AM, Dong Aisheng wrote:
> On Tue, Mar 9, 2021 at 11:53 PM Chanwoo Choi <cwchoi00@...il.com> wrote:
>>
>> On 21. 3. 9. 오후 9:58, Dong Aisheng wrote:
>>> Use the more accurate returned new_freq as resume_freq.
>>> It's the same as how devfreq->previous_freq was updated.
>>>
>>> Signed-off-by: Dong Aisheng <aisheng.dong@....com>
>>> ---
>>>   drivers/devfreq/devfreq.c | 2 +-
>>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
>>> index 6e80bf70e7b3..ce569bd9adfa 100644
>>> --- a/drivers/devfreq/devfreq.c
>>> +++ b/drivers/devfreq/devfreq.c
>>> @@ -390,7 +390,7 @@ static int devfreq_set_target(struct devfreq *devfreq, unsigned long new_freq,
>>>       devfreq->previous_freq = new_freq;
>>>
>>>       if (devfreq->suspend_freq)
>>> -             devfreq->resume_freq = cur_freq;
>>> +             devfreq->resume_freq = new_freq;
>>>
>>>       return err;
>>>   }
>>>
>>
>> This patch fixes the previous patch[1]. So that you need to
>> add 'Fixes' tag as following:
>>
>> Fixes: 83f8ca45afbf0 ("PM / devfreq: add support for suspend/resume of a
>> devfreq device")
>>
> 
> Will add Fixes tag in next version.


On next version, recommend to place this patch at the first.

> 
>> commit 83f8ca45afbf041e312909f442128b99657d90b7
>> Refs: v4.20-rc6-2-g83f8ca45afbf
>> Author:     Lukasz Luba <lukasz.luba@....com>
>> AuthorDate: Wed Dec 5 12:05:53 2018 +0100
>> Commit:     MyungJoo Ham <myungjoo.ham@...sung.com>
>> CommitDate: Tue Dec 11 11:09:47 2018 +0900
>>
>>      PM / devfreq: add support for suspend/resume of a devfreq device
>>
>>
>> --
>> Best Regards,
>> Samsung Electronics
>> Chanwoo Choi
> 
> 


-- 
Best Regards,
Chanwoo Choi
Samsung Electronics