linux-kernel - Re: [PATCH V2] ASoC: max98373: Added max98373

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Message-ID: <CANEJEGse1DGQE6K=sn=bfJuQW=-gM6zps+kvKd8y=yzXjrsTZQ@mail.gmail.com>
Date:   Wed, 28 Nov 2018 17:55:48 -0800
From:   Grant Grundler <grundler@...omium.org>
To:     RyanS.Lee@...imintegrated.com
Cc:     broonie@...nel.org, Liam Girdwood <lgirdwood@...il.com>,
        perex@...ex.cz, tiwai@...e.com,
        Grant Grundler <grundler@...omium.org>,
        Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        Benson Leung <bleung@...omium.org>,
        alsa-devel@...a-project.org, LKML <linux-kernel@...r.kernel.org>,
        ryan.lee.maxim@...il.com
Subject: Re: [PATCH V2] ASoC: max98373: Added max98373_reset for stable amp reset

On Wed, Nov 28, 2018 at 9:07 AM Ryan Lee <RyanS.Lee@...imintegrated.com> wrote:
>
> >-----Original Message-----
> >From: Mark Brown <broonie@...nel.org>
> >Sent: Wednesday, November 28, 2018 1:50 AM
> >To: Ryan Lee <RyanS.Lee@...imintegrated.com>
> >Cc: Liam Girdwood <lgirdwood@...il.com>; Jaroslav Kysela
> ><perex@...ex.cz>; Takashi Iwai <tiwai@...e.com>; Grant Grundler
> ><grundler@...omium.org>; Kuninori Morimoto
> ><kuninori.morimoto.gx@...esas.com>; Benson Leung
> ><bleung@...omium.org>; alsa-devel@...a-project.org; linux-
> >kernel@...r.kernel.org; ryan.lee.maxim@...il.com
> >Subject: Re: [PATCH V2] ASoC: max98373: Added max98373_reset for stable
> >amp reset
> >
> >On Wed, Nov 28, 2018 at 03:20:16AM +0000, Ryan Lee wrote:
> >> Signed-off-by: Ryan Lee <ryans.lee@...imintegrated.com>
> >> ---
> >
> >Not seeing a changelog here like I asked for :(
>
> Actually I added changelog as below. Do you mean this is not sufficient?

The text is probably sufficient but not in a format that Mark can
directly apply.
Please take a quick look at Documentation/process/submitting-patches.rst.

Mark wants the "commit message" to be before the '---' line. So move
the "Changes:" text up to become the commit message and drop the
"Changes" line. That should explain why this commit is needed and
include the S-o-B line.

cheers,
grant

>
> Changes since v1 : Removed unusual repeat for amp software reset and verification.
>                    Amp software reset will be performed once and it repeats verification maximum 3 times if it is failed.
>                    Wait 10ms before every verification trial. Maximum 30ms delay will be applied to wait AMP idle state.
>
> >
> >> Changes : Created max98373_reset function to minimize code duplication.
> >>           Changed regmap_write to regmap_update_bits. Other bits except LSB
> >need to be masked.
> >>           Added reset verification step to make sure software reset is completed
> >well. Software reset is done in 10ms in normal case.
> >>           Revision ID is available when the amp is in the idle state which means
> >software reset is completed.
> >>           Software reset will be performed maximum 3 times to avoid amp reset
> >failure. Generally it is done in the first trial.
> >>           sleep time after software reset is increased + 30ms for every retrial.
> >Maximum possible msleep time is 100 ms (initial 10 ms + 30 ms * 3 times).
> >
> >This looks like it's supposed to be a changelog but it isn't one?