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ASoC: atmel-pcm-dma: move prepare for dma to dai prepare

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as prepare callback for dma is acctually access ssc register
which better done in dai driver, so move it to dai prepare
callback function

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Bo Shen 2013-07-03 16:37:58 +08:00 committed by Mark Brown
parent f1b0dd8b93
commit cede8d7aaa
2 changed files with 1 additions and 14 deletions
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14
sound/soc/atmel/atmel-pcm-dma.c
View File

@ -175,19 +175,6 @@ err:
return ret;
}
static int atmel_pcm_dma_prepare(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct atmel_pcm_dma_params *prtd;
prtd = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
ssc_writex(prtd->ssc->regs, SSC_IER, prtd->mask->ssc_error);
ssc_writex(prtd->ssc->regs, SSC_CR, prtd->mask->ssc_enable);
return 0;
}
static int atmel_pcm_open(struct snd_pcm_substream *substream)
{
snd_soc_set_runtime_hwparams(substream, &atmel_pcm_dma_hardware);
@ -200,7 +187,6 @@ static struct snd_pcm_ops atmel_pcm_ops = {
.close = snd_dmaengine_pcm_close_release_chan,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = atmel_pcm_hw_params,
.prepare = atmel_pcm_dma_prepare,
.trigger = snd_dmaengine_pcm_trigger,
.pointer = snd_dmaengine_pcm_pointer_no_residue,
.mmap = atmel_pcm_mmap,

1
sound/soc/atmel/atmel_ssc_dai.c
View File

@ -649,6 +649,7 @@ static int atmel_ssc_prepare(struct snd_pcm_substream *substream,
dma_params = ssc_p->dma_params[dir];
ssc_writel(ssc_p->ssc->regs, CR, dma_params->mask->ssc_enable);
ssc_writel(ssc_p->ssc->regs, IER, dma_params->mask->ssc_error);
pr_debug("%s enabled SSC_SR=0x%08x\n",
dir ? "receive" : "transmit",