From: Peter Ujfalusi <peter.ujfalusi@ti.com>
Date: Thu, 26 Jun 2014 05:09:24 +0000 (+0300)
Subject: ASoC: davinci-mcasp: Fix S24_LE and U24_LE support
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=182bef863cc37a9a387ae9bc0f1b05243234bd4a;p=openwrt%2Fstaging%2Fblogic.git

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>
---

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;