[alsa-devel] [PATCH v2] ALSA: ASoC: McASP: add support for 24 bit samples

[Daniel Mack]

Signed-off-by: Daniel Mack <zonque at gmail.com>
Cc: Hebbar, Gururaja <gururaja.hebbar at ti.com>
Cc: Matt Porter <mporter at ti.com>
---
v2: also enable 24bit in the DAI

 sound/soc/davinci/davinci-mcasp.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index 1252bad..76728be 100644
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -839,6 +839,14 @@ static int davinci_mcasp_hw_params(struct snd_pcm_substream *substream,
 		word_length = DAVINCI_AUDIO_WORD_16;
 		break;
 
+	case SNDRV_PCM_FORMAT_U24_3LE:
+	case SNDRV_PCM_FORMAT_S24_3LE:
+	case SNDRV_PCM_FORMAT_U24_LE:
+	case SNDRV_PCM_FORMAT_S24_LE:
+		dma_params->data_type = 3;
+		word_length = DAVINCI_AUDIO_WORD_24;
+		break;
+
 	case SNDRV_PCM_FORMAT_U32_LE:
 	case SNDRV_PCM_FORMAT_S32_LE:
 		dma_params->data_type = 4;
@@ -917,6 +925,10 @@ static const struct snd_soc_dai_ops davinci_mcasp_dai_ops = {
 				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_S24_3LE | \
+				SNDRV_PCM_FMTBIT_U24_3LE | \
 				SNDRV_PCM_FMTBIT_S32_LE | \
 				SNDRV_PCM_FMTBIT_U32_LE)
 
-- 
1.7.11.4