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

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Message-ID: <CAA+hA=Tv9SThyu3C33Kij8XikAiT1eb666VW328bxhUyrvYgfw@mail.gmail.com>
Date:   Wed, 10 Mar 2021 11:04:27 +0800
From:   Dong Aisheng <dongas86@...il.com>
To:     Chanwoo Choi <cw00.choi@...sung.com>
Cc:     Chanwoo Choi <cwchoi00@...il.com>,
        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 Wed, Mar 10, 2021 at 10:50 AM Chanwoo Choi <cw00.choi@...sung.com> wrote:
>
> 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.

Yes, good practice as it's a fix.

Regards
Aisheng

>
> >
> >> 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