linux-kernel - Re: [PATCH 1/2] dt-bindings: sound: fsl-asoc-card: add new compatible for I2S slave

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Date:   Thu, 2 Jul 2020 17:28:03 +0200
From:   Arnaud Ferraris <arnaud.ferraris@...labora.com>
To:     Mark Brown <broonie@...nel.org>
Cc:     kernel@...labora.com, Liam Girdwood <lgirdwood@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Timur Tabi <timur@...nel.org>,
        Nicolin Chen <nicoleotsuka@...il.com>,
        Xiubo Li <Xiubo.Lee@...il.com>,
        Fabio Estevam <festevam@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH 1/2] dt-bindings: sound: fsl-asoc-card: add new compatible
 for I2S slave

Hi Mark,

Le 02/07/2020 à 16:31, Mark Brown a écrit :
> On Thu, Jul 02, 2020 at 04:11:14PM +0200, Arnaud Ferraris wrote:
>> fsl-asoc-card currently doesn't support generic codecs with the SoC
>> acting as I2S slave.
>>
>> This commit adds a new `fsl,imx-audio-i2s-slave` for this use-case, as
>> well as the following mandatory properties:
> 
> Why require that the CODEC be clock master here - why not make this
> configurable, reusing the properties from the generic and audio graph
> cards?

This is partly because I'm not sure how to do it (yet), but mostly
because I don't have the hardware to test this (the 2 CODECs present on
my only i.MX6 board are both clock master)

Regards,
Arnaud