linux-kernel - Re: [RFC PATCH] ASoC: fsl: Add Audio Mixer CPU DAI driver

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Message-ID: <CAL_JsqLcBjRBV_zOoMGGB9gFVgk=4LSx80sFam1-9neDVjAYfQ@mail.gmail.com>
Date:   Thu, 3 Jan 2019 12:25:33 -0600
From:   Rob Herring <robh+dt@...nel.org>
To:     Viorel Suman <viorel.suman@....com>
Cc:     "nicoleotsuka@...il.com" <nicoleotsuka@...il.com>,
        dl-linux-imx <linux-imx@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
        "timur@...nel.org" <timur@...nel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "Xiubo.Lee@...il.com" <Xiubo.Lee@...il.com>,
        Fabio Estevam <fabio.estevam@....com>,
        "broonie@...nel.org" <broonie@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "tiwai@...e.com" <tiwai@...e.com>,
        "lgirdwood@...il.com" <lgirdwood@...il.com>,
        Daniel Baluta <daniel.baluta@....com>,
        "perex@...ex.cz" <perex@...ex.cz>,
        "alsa-devel@...a-project.org" <alsa-devel@...a-project.org>
Subject: Re: [RFC PATCH] ASoC: fsl: Add Audio Mixer CPU DAI driver

On Thu, Jan 3, 2019 at 9:59 AM Viorel Suman <viorel.suman@....com> wrote:
>
> Hi Nicolin,
>
> Thank you for your feedback, same here - just back from vacation.
>
> On Jo, 2018-12-27 at 01:24 +0800, Nicolin Chen wrote:
> > Hi Viorel,
> >
> > Sorry for the late response, having been on a long vacation.
> >
> > The code looks pretty clean. Just some small concerns/questions
> > below.
> >
> > On Wed, Dec 19, 2018 at 12:30 AM Viorel Suman <viorel.suman@....com>
> > wrote:
> > >
> > >
> > > This patch implements Audio Mixer CPU DAI driver for NXP iMX8 SOCs.
> > > The Audio Mixer is a on-chip functional module that allows mixing
> > > of
> > > two audio streams into a single audio stream.
> > >
> > > Audio Mixer datasheet is available here:
> > > https://www.nxp.com/docs/en/reference-manual/IMX8DQXPRM.pdf
> > >
> > > Signed-off-by: Viorel Suman <viorel.suman@....com>
> > > ---
> > >  .../devicetree/bindings/sound/fsl,amix.txt         |  45 ++
> > >  sound/soc/fsl/Kconfig                              |   7 +
> > >  sound/soc/fsl/Makefile                             |   3 +
> > >  sound/soc/fsl/fsl_amix.c                           | 554
> > > +++++++++++++++++++++
> > >  sound/soc/fsl/fsl_amix.h                           | 101 ++++
> > I aimn't against the naming here, but it seems to be AUDMIX in RM?
> >
> > Would it be better to align with that? It's your decision though.
>
> To me "AUDMIX" sounds more like some RTL high level integration module,
> I would prefer to keep it as it is if there is no strong reason to
> rename it.

At least for compatible string names, matching what's in the RM or RTL
is more appropriate. Where does "AMIX" come from?

Rob