ASoC: McASP: add support for 24 bit samples

Signed-off-by: NDaniel Mack <zonque@gmail.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/davinci/davinci-mcasp.c

@@ -865,6 +865,14 @@ 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;
@@ -944,6 +952,10 @@ 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)