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authorSangsu Park <sangsu4u.park@samsung.com>2012-03-16 10:40:53 +0400
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-03-16 22:50:41 +0400
commit588fb705d560cd76d435382fb25bea7349672d80 (patch)
tree4f734971fb6bd0b67d7b04f53ca65c98f3ae8aaf
parent181a68927b9e6ff7c0ea093c2f056eeb0552a911 (diff)
downloadlinux-588fb705d560cd76d435382fb25bea7349672d80.tar.xz
ASoC: Samsung: Added to support mono recording
The dma size will be changed by requested number of channel(mono/stereo) from platform. For mono recording, channels_min value should be 1. Signed-off-by: Sangsu Park <sangsu4u.park@samsung.com> Signed-off-by: Sangbeom Kim <sbkim73@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
-rw-r--r--sound/soc/samsung/i2s.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index 6553b19c70c7..6ac7b8281a02 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -559,6 +559,17 @@ static int i2s_hw_params(struct snd_pcm_substream *substream,
mod |= MOD_DC1_EN;
break;
case 2:
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ i2s->dma_playback.dma_size = 4;
+ else
+ i2s->dma_capture.dma_size = 4;
+ break;
+ case 1:
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ i2s->dma_playback.dma_size = 2;
+ else
+ i2s->dma_capture.dma_size = 2;
+
break;
default:
dev_err(&i2s->pdev->dev, "%d channels not supported\n",
@@ -963,7 +974,7 @@ struct i2s_dai *i2s_alloc_dai(struct platform_device *pdev, bool sec)
i2s->i2s_dai_drv.playback.formats = SAMSUNG_I2S_FMTS;
if (!sec) {
- i2s->i2s_dai_drv.capture.channels_min = 2;
+ i2s->i2s_dai_drv.capture.channels_min = 1;
i2s->i2s_dai_drv.capture.channels_max = 2;
i2s->i2s_dai_drv.capture.rates = SAMSUNG_I2S_RATES;
i2s->i2s_dai_drv.capture.formats = SAMSUNG_I2S_FMTS;