ASoC: spdif: Add S20_3LE and S24_LE support for dummy codec drivers

Generally, S/PDIF supports 20bit and optional 24bit samples. Thus add these
two formats for the dummy codec drivers.

If one S/PDIF controller has its own limitation, its CPU DAI driver should
set the supported format by its own circumstance, since the soc-pcm driver
will use the intersection of cpu_dai's formats and codec_dai's formats.

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

sound/soc/codecs/spdif_receiver.c

@@ -25,6 +25,8 @@
 
 #define STUB_RATES	SNDRV_PCM_RATE_8000_192000
 #define STUB_FORMATS	(SNDRV_PCM_FMTBIT_S16_LE | \
+			SNDRV_PCM_FMTBIT_S20_3LE | \
+			SNDRV_PCM_FMTBIT_S24_LE | \
 			SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE)
 
 static struct snd_soc_codec_driver soc_codec_spdif_dir;

sound/soc/codecs/spdif_transmitter.c

@@ -25,8 +25,9 @@
 #define DRV_NAME "spdif-dit"
 
 #define STUB_RATES	SNDRV_PCM_RATE_8000_96000
-#define STUB_FORMATS	SNDRV_PCM_FMTBIT_S16_LE
-
+#define STUB_FORMATS	(SNDRV_PCM_FMTBIT_S16_LE | \
+			SNDRV_PCM_FMTBIT_S20_3LE | \
+			SNDRV_PCM_FMTBIT_S24_LE)
 
 static struct snd_soc_codec_driver soc_codec_spdif_dit;