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ASoC: pcm179x: Support continuous rates 

According to the PCM179x data sheets sampling frequencies between 10
kHz and 200 kHz are supported. Specify support in the driver.

Tested with PCM1791A.

References:
http://www.ti.com/lit/ds/symlink/pcm1791a.pdf
http://www.ti.com/lit/ds/symlink/pcm1792a.pdf
http://www.ti.com/lit/ds/symlink/pcm1795.pdf
http://www.ti.com/lit/ds/symlink/pcm1796.pdf

Signed-off-by: Jacob Siverskog <jacob@teenage.engineering>
Reviewed-by: Johan Hovold <johan@kernel.org>
Acked-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Jacob Siverskog 2016-01-22 13:39:55 +01:00 committed by Mark Brown
parent 70e3e56e6c
commit e0236f541e
2 changed files with 3 additions and 5 deletions
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4
sound/soc/codecs/pcm179x.c
View File

@ -187,7 +187,9 @@ static struct snd_soc_dai_driver pcm179x_dai = {
.stream_name = "Playback",
.channels_min = 2,
.channels_max = 2,
.rates = PCM1792A_RATES,
.rates = SNDRV_PCM_RATE_CONTINUOUS,
.rate_min = 10000,
.rate_max = 200000,
.formats = PCM1792A_FORMATS, },
.ops = &pcm179x_dai_ops,
};

4
sound/soc/codecs/pcm179x.h
View File

@ -17,10 +17,6 @@
#ifndef __PCM179X_H__
#define __PCM179X_H__
#define PCM1792A_RATES (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_8000_48000 | \
SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | \
SNDRV_PCM_RATE_192000)
#define PCM1792A_FORMATS (SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S24_LE | \
SNDRV_PCM_FMTBIT_S16_LE)