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ASoC: amd: vg: apply sample bits pcm constraint

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ACP I2S controller has limitation to program different BCLK
for TX and RX paths.
Headset path uses I2S SP controller instance.
As per requirement, Restricted 32 bits as sample bits by
applying pcm constraint in startup calabck for Headset path.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20220223071959.13539-5-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Vijendar Mukunda 2022-02-23 12:49:34 +05:30 committed by Mark Brown
parent 9a617f0e10
commit 0c38cc1dd1
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GPG Key ID: 24D68B725D5487D0
1 changed files with 10 additions and 0 deletions
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10
sound/soc/amd/vangogh/acp5x-mach.c
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@ -100,6 +100,13 @@ static const struct snd_pcm_hw_constraint_list constraints_channels = {
.mask = 0,
};
static const unsigned int acp5x_nau8821_format[] = {32};
static struct snd_pcm_hw_constraint_list constraints_sample_bits = {
.list = acp5x_nau8821_format,
.count = ARRAY_SIZE(acp5x_nau8821_format),
};
static int acp5x_8821_startup(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
@ -115,6 +122,9 @@ static int acp5x_8821_startup(struct snd_pcm_substream *substream)
&constraints_channels);
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
&constraints_rates);
snd_pcm_hw_constraint_list(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
&constraints_sample_bits);
return 0;
}