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Date:   Tue, 22 Jan 2019 11:19:36 +0000
From:   Viorel Suman <viorel.suman@....com>
To:     "nicoleotsuka@...il.com" <nicoleotsuka@...il.com>
CC:     dl-linux-imx <linux-imx@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Cosmin Samoila <cosmin.samoila@....com>,
        "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>,
        "viorel.suman@...il.com" <viorel.suman@...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>,
        "robh@...nel.org" <robh@...nel.org>,
        "lgirdwood@...il.com" <lgirdwood@...il.com>,
        "S.j. Wang" <shengjiu.wang@....com>,
        Daniel Baluta <daniel.baluta@....com>,
        "perex@...ex.cz" <perex@...ex.cz>,
        "alsa-devel@...a-project.org" <alsa-devel@...a-project.org>
Subject: Re: [PATCH v3 0/4] Add NXP AUDMIX device and machine drivers

Hi Nicolin,

On Vi, 2019-01-18 at 11:46 -0800, Nicolin Chen wrote:
> On Fri, Jan 18, 2019 at 01:16:24PM +0000, Viorel Suman wrote:
> > 
> > > 
> > > > 
> > > > 1. Moved "dais" node from machine driver DTS node to device
> > > > driver
> > > > DTS node
> > > >   as suggested by Rob.
> > > That was not what I suggested. You still have a virtual node
> > > which
> > > looks to me to be unnecessary.
> > To me removing virtual node implies that AUDMIX machine driver
> > (imx-
> > audmix.c + virtual node) shall be removed and machine driver code
> > merged into device driver (fsl_audmix.c + device node) - please let
> > me
> > know if my understanding is wrong.
> We could use a non-DT configuration right? From the driver logic,
> DT just registers a device corresponding to the machine driver so
> that it can probe(). We could register one in fsl_audmix instead.
> Please refer to how fsl_ssi registers the sound card device. The
> machine driver can get audmix_np from the parent device pointer,
> and I think that's all you need.
> 
> Or maybe someone else would provide a better way. But it'd work.

Sent V4 - it implements the approach you suggested. Thank you for the
hint, works well indeed.

Regards,
Viorel

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