ASoC: davinci-mcasp: Fix S24_LE and U24_LE support

In case of S24_LE/U24_LE modes we expect 24bits on the bus while the samples
are stored and transferred in memory on 32bits (lower 3 bytes of the 4
bytes).

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index 0ee4986038cc..bfcc6c3dc2fd 100644
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -720,6 +720,10 @@ static int davinci_mcasp_hw_params(struct snd_pcm_substream *substream,
 
         case SNDRV_PCM_FORMAT_U24_LE:
         case SNDRV_PCM_FORMAT_S24_LE:
+                dma_params->data_type = 4;
+                word_length = 24;
+                break;
+
         case SNDRV_PCM_FORMAT_U32_LE:
         case SNDRV_PCM_FORMAT_S32_LE:
                 dma_params->data_type = 4;