From 588fb705d560cd76d435382fb25bea7349672d80 Mon Sep 17 00:00:00 2001 From: Sangsu Park Date: Fri, 16 Mar 2012 15:40:53 +0900 Subject: [PATCH] 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 Signed-off-by: Sangbeom Kim Signed-off-by: Mark Brown --- sound/soc/samsung/i2s.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) 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; -- 2.39.5