[alsa-devel] [PATCH v3] ASoC: davinci-evm: Add AM43xx-EPOS-EVM audio support

Mark Brown broonie at kernel.org
Mon Mar 10 12:09:26 CET 2014

On Mon, Mar 10, 2014 at 12:49:56PM +0200, Jyri Sarha wrote:
> On 03/09/2014 10:11 AM, Mark Brown wrote:

> >No, it shouldn't do any inversion.  If inversion is required one of the
> >drivers is buggy, they are CODEC bit master and CPU bit master so for a
> >CPU driver the sense should be inverted when parsing.

> Yes, that is the problem. The same code in simple-card parses the
> codec node and cpu-dai node and they produce the same
> SND_SOC_DAIFMT_C??_C?? flags for both codec and cpu-dai drivers.

Sorry, thinko above - the master flags are specified in terms of the
CODEC.  Anything interpreting them that isn't a CODEC needs to be
inverting the sense.
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