From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sergej Sawazki <ce3a@gmx.de>
Subject: ASoC: codec register dump in debugfs
Date: Fri, 29 May 2015 09:16:56 +0200
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To: lgirdwood@gmail.com, Mark Brown <broonie@kernel.org>, alsa-devel@alsa-project.org
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Dear all,

please correct me if I am wrong. Since the codec drivers have been
converted to direct regmap API usage, it is not common to set the
following snd_soc_codec_driver struct members:

    .reg_cache_size
    .reg_word_size

However, the functions soc_codec_reg_show() and format_register_str()
(responsible for formating and printing the codec register dumps to
debugfs) depend on these members.

I'm writing a ASoC machine driver. The board has two wm8741 codecs.
I would like to see the codec register dumps in debugfs.

eg:
cat /sys/kernel/debug/asoc/<card_name>/codec\:wm8741.1-001a/codec_reg
cat /sys/kernel/debug/asoc/<card_name>/codec\:wm8741.1-001b/codec_reg

Is it OK to set the above mentioned members in a codec driver to
"enable" the register dump output?
Or should we refactor the above mentioned functions to use the regmap
API?
Or am I missing something?

Thanks,
Sergej