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ASoC: samsung: i2s: Add widgets and routes for DPCM support

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This patch adds DAPM widgets required to model the internal mixer
of the I2S controller merging audio streams from the primary and
from the secondary PCM interface.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Sylwester Nawrocki 2019-02-12 19:03:24 +01:00 committed by Mark Brown
parent 89d2e83148
commit 64aba9bca5
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GPG Key ID: 24D68B725D5487D0
1 changed files with 26 additions and 1 deletions
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27
sound/soc/samsung/i2s.c
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@ -1116,8 +1116,31 @@ static const struct snd_soc_dai_ops samsung_i2s_dai_ops = {
.delay = i2s_delay,
};
static const struct snd_soc_dapm_widget samsung_i2s_widgets[] = {
/* Backend DAI */
SND_SOC_DAPM_AIF_OUT("Mixer DAI TX", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("Mixer DAI RX", NULL, 0, SND_SOC_NOPM, 0, 0),
/* Playback Mixer */
SND_SOC_DAPM_MIXER("Playback Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
};
static const struct snd_soc_dapm_route samsung_i2s_dapm_routes[] = {
{ "Playback Mixer", NULL, "Primary" },
{ "Playback Mixer", NULL, "Secondary" },
{ "Mixer DAI TX", NULL, "Playback Mixer" },
{ "Playback Mixer", NULL, "Mixer DAI RX" },
};
static const struct snd_soc_component_driver samsung_i2s_component = {
.name = "samsung-i2s",
.name = "samsung-i2s",
.dapm_widgets = samsung_i2s_widgets,
.num_dapm_widgets = ARRAY_SIZE(samsung_i2s_widgets),
.dapm_routes = samsung_i2s_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(samsung_i2s_dapm_routes),
};
#define SAMSUNG_I2S_FMTS (SNDRV_PCM_FMTBIT_S8 | \
@ -1129,6 +1152,7 @@ static int i2s_alloc_dais(struct samsung_i2s_priv *priv,
int num_dais)
{
static const char *dai_names[] = { "samsung-i2s", "samsung-i2s-sec" };
static const char *stream_names[] = { "Primary", "Secondary" };
struct snd_soc_dai_driver *dai_drv;
struct i2s_dai *dai;
int i;
@ -1158,6 +1182,7 @@ static int i2s_alloc_dais(struct samsung_i2s_priv *priv,
dai_drv->playback.channels_max = 2;
dai_drv->playback.rates = i2s_dai_data->pcm_rates;
dai_drv->playback.formats = SAMSUNG_I2S_FMTS;
dai_drv->playback.stream_name = stream_names[i];
dai_drv->id = i + 1;
dai_drv->name = dai_names[i];