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ASoC: codecs: ad193x: Set constraint to always have 32 sample bits

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DACs and ADCs on ad193x codecs require a 32 bit slot size. We should
assure that no other size is used.

Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Codrin Ciubotariu 2019-02-18 16:10:30 +00:00 committed by Mark Brown
parent 7aac8d13fc
commit 75c2ecb4bd
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1 changed files with 16 additions and 0 deletions
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16
sound/soc/codecs/ad193x.c
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@ -37,6 +37,13 @@ static SOC_ENUM_SINGLE_DECL(ad193x_deemp_enum, AD193X_DAC_CTRL2, 1,
static const DECLARE_TLV_DB_MINMAX(adau193x_tlv, -9563, 0);
static const unsigned int ad193x_sb[] = {32};
static struct snd_pcm_hw_constraint_list constr = {
.list = ad193x_sb,
.count = ARRAY_SIZE(ad193x_sb),
};
static const struct snd_kcontrol_new ad193x_snd_controls[] = {
/* DAC volume control */
SOC_DOUBLE_R_TLV("DAC1 Volume", AD193X_DAC_L1_VOL,
@ -321,7 +328,16 @@ static int ad193x_hw_params(struct snd_pcm_substream *substream,
return 0;
}
static int ad193x_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
return snd_pcm_hw_constraint_list(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
&constr);
}
static const struct snd_soc_dai_ops ad193x_dai_ops = {
.startup = ad193x_startup,
.hw_params = ad193x_hw_params,
.digital_mute = ad193x_mute,
.set_tdm_slot = ad193x_set_tdm_slot,