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authorSylwester Nawrocki <s.nawrocki@samsung.com>2019-02-12 21:03:24 +0300
committerMark Brown <broonie@kernel.org>2019-02-13 14:45:53 +0300
commit64aba9bca5bd8d0957b0410bdfa192afb1fcb267 (patch)
tree73f1f51c45898ca7ce58aca35da03080379a487e
parent89d2e831487682b567525275f89d679793dd53da (diff)
downloadlinux-64aba9bca5bd8d0957b0410bdfa192afb1fcb267.tar.xz
ASoC: samsung: i2s: Add widgets and routes for DPCM support
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>
-rw-r--r--sound/soc/samsung/i2s.c27
1 files changed, 26 insertions, 1 deletions
diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index fffc76ab60da..29bcfca20572 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -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];