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authorTroy Kisky <troy.kisky@boundarydevices.com>2009-11-19 01:49:54 +0100
committerMark Brown <broonie@opensource.wolfsonmicro.com>2009-11-19 11:48:27 +0100
commit2b7b250df74f1f9e15cdf33fa90f6c98a419842d (patch)
tree119002a0778d0be261538abfa8899205de35d16b /sound/soc
parentASoC: DaVinci: pcm, fix underrun by using sram (diff)
downloadlinux-2b7b250df74f1f9e15cdf33fa90f6c98a419842d.tar.xz
linux-2b7b250df74f1f9e15cdf33fa90f6c98a419842d.zip
ASoC: DaVinci: use edma_pause, edma_resume
Use edma_pause and edma_resume to make missing dma_events less likely. This may not be needed, but it looks better. Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc')
-rw-r--r--sound/soc/davinci/davinci-pcm.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/sound/soc/davinci/davinci-pcm.c b/sound/soc/davinci/davinci-pcm.c
index 664d49336508..ad4d7f47a86b 100644
--- a/sound/soc/davinci/davinci-pcm.c
+++ b/sound/soc/davinci/davinci-pcm.c
@@ -528,12 +528,12 @@ static int davinci_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- edma_start(prtd->asp_channel);
+ edma_resume(prtd->asp_channel);
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- edma_stop(prtd->asp_channel);
+ edma_pause(prtd->asp_channel);
break;
default:
ret = -EINVAL;
@@ -568,6 +568,7 @@ static int davinci_pcm_prepare(struct snd_pcm_substream *substream)
/* copy 1st iram buffer */
edma_start(prtd->ram_channel);
}
+ edma_start(prtd->asp_channel);
return 0;
}
prtd->period = 0;
@@ -577,6 +578,7 @@ static int davinci_pcm_prepare(struct snd_pcm_substream *substream)
edma_read_slot(prtd->asp_link[0], &prtd->asp_params);
edma_write_slot(prtd->asp_channel, &prtd->asp_params);
davinci_pcm_enqueue_dma(substream);
+ edma_start(prtd->asp_channel);
return 0;
}