linux-kernel - Re: [alsa-devel] [RFC/RFT PATCH] ASoC: topology: Improve backwards compatibility with v4 topology files

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Message-ID: <20180523094928.GE4828@sirena.org.uk>
Date:   Wed, 23 May 2018 10:49:28 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Guenter Roeck <groeck@...gle.com>
Cc:     pierre-louis.bossart@...ux.intel.com,
        Liam Girdwood <lgirdwood@...il.com>,
        alsa-devel@...a-project.org,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Takashi Iwai <tiwai@...e.com>,
        "Patel, Chintan M" <chintan.m.patel@...el.com>,
        Guenter Roeck <groeck@...omium.org>
Subject: Re: [alsa-devel] [RFC/RFT PATCH] ASoC: topology: Improve backwards
 compatibility with v4 topology files

On Tue, May 22, 2018 at 02:59:50PM -0700, Guenter Roeck wrote:

> Most people are not aware that they have a backwards compatibility problem
> with the topology file. They will typically notice and report that it is
> impossible to get audio working with an upstream kernel on a recent
> Chromebook, and as users they rarely know about development mailing lists.
> Some technical discussions are at

> https://github.com/GalliumOS/galliumos-distro/issues/379
> https://github.com/GalliumOS/galliumos-distro/issues/274

> though I had seen others earlier. Guess next time I'll have to preserve
> links. Anyway, I am not really much interested in an argument/discussion
> about my use of the term "widely". I'll rephrase that paragraph in the next
> version of the patch, should it come to that.

Right, looks like the disconnect I thought it was - this has been
discussed a lot within your distro (and possibly others) but not outside
it so the rest of us are all a bit surprised.  

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