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ASoC: dpcm: Allow PCMs to omit the set of supported formats 

Allow PCMs that do not impose any restrictions on the supported formats to set
the formats field to 0, Instead of assuming that this means that the PCM does
not support any formats (which doesn't make much sense), assume that it supports
all formats. This brings the behavior of DPCM closer to that of non-DPCM.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Lars-Peter Clausen 2014-01-06 14:19:07 +01:00 committed by Mark Brown
parent 08ae9b456d
commit 002220a90d
1 changed files with 4 additions and 1 deletions
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5
sound/soc/soc-pcm.c
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@ -1235,7 +1235,10 @@ static void dpcm_init_runtime_hw(struct snd_pcm_runtime *runtime,
runtime->hw.rate_max = stream->rate_max;
runtime->hw.channels_min = stream->channels_min;
runtime->hw.channels_max = stream->channels_max;
runtime->hw.formats &= stream->formats;
if (runtime->hw.formats)
runtime->hw.formats &= stream->formats;
else
runtime->hw.formats = stream->formats;
runtime->hw.rates = stream->rates;
}