linux-kernel - Re: [PATCH v4 1/8] ASoC: dt-bindings: fsl_asrc: Change asrc-width to asrc-format

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Date:   Tue, 3 Mar 2020 12:47:39 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Shengjiu Wang <shengjiu.wang@...il.com>
Cc:     Rob Herring <robh@...nel.org>,
        Shengjiu Wang <shengjiu.wang@....com>,
        Mark Rutland <mark.rutland@....com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux-ALSA <alsa-devel@...a-project.org>,
        linuxppc-dev@...ts.ozlabs.org,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Timur Tabi <timur@...nel.org>, Xiubo Li <Xiubo.Lee@...il.com>,
        shawnguo@...nel.org, s.hauer@...gutronix.de,
        Takashi Iwai <tiwai@...e.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Nicolin Chen <nicoleotsuka@...il.com>, linux-imx@....com,
        kernel@...gutronix.de, Fabio Estevam <festevam@...il.com>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v4 1/8] ASoC: dt-bindings: fsl_asrc: Change asrc-width to
 asrc-format

On Tue, Mar 03, 2020 at 11:59:30AM +0800, Shengjiu Wang wrote:
> On Tue, Mar 3, 2020 at 9:43 AM Rob Herring <robh@...nel.org> wrote:

> > > -   - fsl,asrc-width  : Defines a mutual sample width used by DPCM Back Ends.
> > > +   - fsl,asrc-format : Defines a mutual sample format used by DPCM Back
> > > +                       Ends. The value is one of SNDRV_PCM_FORMAT_XX in
> > > +                       "include/uapi/sound/asound.h"

> > You can't just change properties. They are an ABI.

> I have updated all the things related with this ABI in this patch series.
> What else should I do?

Like Nicolin says you should continue to support the old stuff.  The
kernel should work with people's out of tree DTs too so simply updating
everything in the tree isn't enough.

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