ASoC: define playback and capture streams in dummy codec

This patch adds a playback and capture streams to the dummy codec DAI
configuration. Most permissive set of sampling rates and formats is used.

This patch is needed for playback and capturing on a codec-less systems,
as otherwise the PCM device nodes are not even created.

Signed-off-by: Stas Sergeev <stsp@users.sourceforge.net>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

diff --git a/sound/soc/soc-utils.c b/sound/soc/soc-utils.c
index fe4541d..4b3be6c 100644 (file)
--- a/sound/soc/soc-utils.c
+++ b/sound/soc/soc-utils.c
@@ -90,8 +90,33 @@ static struct snd_soc_platform_driver dummy_platform = {
 };
 
 static struct snd_soc_codec_driver dummy_codec;
+
+#define STUB_RATES     SNDRV_PCM_RATE_8000_192000
+#define STUB_FORMATS   (SNDRV_PCM_FMTBIT_S8 | \
+                       SNDRV_PCM_FMTBIT_U8 | \
+                       SNDRV_PCM_FMTBIT_S16_LE | \
+                       SNDRV_PCM_FMTBIT_U16_LE | \
+                       SNDRV_PCM_FMTBIT_S24_LE | \
+                       SNDRV_PCM_FMTBIT_U24_LE | \
+                       SNDRV_PCM_FMTBIT_S32_LE | \
+                       SNDRV_PCM_FMTBIT_U32_LE | \
+                       SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE)
 static struct snd_soc_dai_driver dummy_dai = {
        .name = "snd-soc-dummy-dai",
+       .playback = {
+               .stream_name    = "Playback",
+               .channels_min   = 1,
+               .channels_max   = 384,
+               .rates          = STUB_RATES,
+               .formats        = STUB_FORMATS,
+       },
+       .capture = {
+               .stream_name    = "Capture",
+               .channels_min   = 1,
+               .channels_max   = 384,
+               .rates = STUB_RATES,
+               .formats = STUB_FORMATS,
+        },
 };
 
 static int snd_soc_dummy_probe(struct platform_device *pdev)