diff options
| author | Codrin Ciubotariu <codrin.ciubotariu@microchip.com> | 2019-02-18 19:10:30 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-02-18 20:41:03 +0300 |
| commit | 75c2ecb4bda296f89d4ea6a42750f48bfcd8a1d9 (patch) | |
| tree | 5dc55e6fea5237a31373707698955d42bc1a3e02 | |
| parent | 7aac8d13fc60db3ec2422f26c4dc2425a7fef20c (diff) | |
| download | linux-75c2ecb4bda296f89d4ea6a42750f48bfcd8a1d9.tar.xz | |
ASoC: codecs: ad193x: Set constraint to always have 32 sample bits
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>
| -rw-r--r-- | sound/soc/codecs/ad193x.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/sound/soc/codecs/ad193x.c b/sound/soc/codecs/ad193x.c index 21a38cc9e3da..c16c9969d1a0 100644 --- a/sound/soc/codecs/ad193x.c +++ b/sound/soc/codecs/ad193x.c @@ -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, |