linux-kernel - Re: [PATCH] ASoC: dapm: Export new 'graph.dot' file in debugfs

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Date:   Mon, 22 Aug 2022 15:06:03 +0200
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     Martin Povišer <povik+lin@...ebit.org>,
        Mark Brown <broonie@...nel.org>
Cc:     alsa-devel@...a-project.org, Liam Girdwood <lgirdwood@...il.com>,
        Alyssa Rosenzweig <alyssa@...enzweig.io>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ASoC: dapm: Export new 'graph.dot' file in debugfs


>>> Provide a DOT summary of the DAPM graph in a newly added 'graph.dot'
>>> file in debugfs, placed in the card's DAPM directory.
>>
>> There was a tool floating about in the past (last copy I knew about was
>> on Wolfson's git but they took that down) - can we not just continue to
>> do that?
> 
> I don’t know the tool or where would I find it. I think it’s neat
> simply having a ‘graph.dot’ at hand, especially since it requires
> little code. (Although sure there’s the danger of it growing.)

The Chrome folks used an 'asoc_dapm_graph' python script since 2014
according to the copyright information. IIRC it was python2 so might
need a bit of work.

https://chromium.googlesource.com/chromiumos/third_party/adhd/+/refs/heads/master/scripts/asoc_dapm_graph