[alsa-devel] [PATCH] ALSA: ASoC: cs4720: use snd_soc_cache_sync()

Mark Brown broonie at opensource.wolfsonmicro.com
Tue Nov 22 17:08:42 CET 2011

On Tue, Nov 22, 2011 at 05:04:46PM +0100, Daniel Mack wrote:
> On 11/22/2011 04:53 PM, Mark Brown wrote:

> > Could be, though I can't see any changes in the code here.  It might be
> > that a change between SMBus and regmap at runtime is upsetting the
> > device somehow but given that it's supposed to be coming back from a
> > power on reset...

> That should affect more codecs then, right?

> $ git grep -l i2c_smbus_write sound/
> sound/aoa/codecs/onyx.c
> sound/aoa/codecs/tas.c
> sound/ppc/daca.c
> sound/ppc/tumbler.c
> sound/soc/codecs/tpa6130a2.c

None of these use regmap so wouldn't be affected by an interaction
between the two.  The tpa6130a2 isn't going through the standard ASoC
structures at all.

> > Does reverting to the non-regmap soc-io.c help?

> Is there a single commit we can revert on top of 3.2-git to test this?

Should be, or a small series anyway.  git log sound/soc/soc-io.c should

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