linux-kernel - System with multiple arizona (wm5102) codecs

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Date:	Mon, 14 Sep 2015 13:54:39 +0200
From:	Pavel Machek <pavel@....cz>
To:	lgirdwood@...il.com, broonie@...nel.org, perex@...ex.cz,
	tiwai@...e.de, patches@...nsource.wolfsonmicro.com,
	alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: System with multiple arizona (wm5102) codecs

Hi!

I've got an embedded system with two arizona / wm5102 codecs.

Unfortunately, kernel does not seem to be ready for that
configuration.

In particular, drivers/regulator/arizona-ldo1.c and
drivers/regulator/arizona-micsupp.c register system-wide "MICVDD" and
"LDO1" regulators, but with two codecs in the system, we really have
wm5102-codec.1.MICVDD, wm5102-codec.2.MICVDD, wm5102-codec.1.LDO1 and
wm5102-codec.2.LDO1.

That got me second codec working in two-codec configuration, but first
one still stops working as soon as two codecs are enabled.

If you have idea what else needs fixing, let me know.

Best regards,
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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