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ASoC: Samsung: Added to support mono recording

PATCH Applied Sangbeom Kim 2 participants 2 messages Mar 16, 2012

Subsystems (3)
Sound ASoC Samsung audio (ASoC) drivers
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Sangbeom Kim

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PATCH 1/1 ASoC: Samsung: Added to support mono recording

From: Sangsu Park <[email protected]>

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 <[email protected]>
Signed-off-by Sangbeom Kim <[email protected]>
---
 sound/soc/samsung/i2s.c |   13 ++++++++++++-
 1 files changed, 12 insertions(+), 1 deletions(-)
sound/soc/samsung/i2s.c +12 -1
index 6553b19..6ac7b82 100644
@@ -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;
Signature · 1 line
1.7.1
Applied
#1 lore raw
Quoted 5 lines · Sangbeom Kim

From: Sangsu Park <[email protected]>

The dma size will be changed by requested number of channel(mono/stereo) from platform. For mono recording, channels_min value should be 1.

Applied, thanks.