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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>
This commit is contained in:
Sangsu Park 2012-03-16 15:40:53 +09:00 committed by Mark Brown
parent 181a68927b
commit 588fb705d5
1 changed files with 12 additions and 1 deletions
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13
sound/soc/samsung/i2s.c
View File

@ -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;