[PATCH 17/18] ASoC: davinci-mcasp: Assign the dma_data earlier in dai_probe callback

From: Peter Ujfalusi
Date: Thu Mar 13 2014 - 05:21:02 EST


Remove the dai startup callback and do the dma_data setup for dmaengine
in the dai_probe function.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
---
sound/soc/davinci/davinci-mcasp.c | 35 +++++++++++++++++++----------------
1 file changed, 19 insertions(+), 16 deletions(-)

diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index 5428615413e2..958933614ca4 100644
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -717,31 +717,33 @@ static int davinci_mcasp_trigger(struct snd_pcm_substream *substream,
return ret;
}

-static int davinci_mcasp_startup(struct snd_pcm_substream *substream,
- struct snd_soc_dai *dai)
+static const struct snd_soc_dai_ops davinci_mcasp_dai_ops = {
+ .trigger = davinci_mcasp_trigger,
+ .hw_params = davinci_mcasp_hw_params,
+ .set_fmt = davinci_mcasp_set_dai_fmt,
+ .set_clkdiv = davinci_mcasp_set_clkdiv,
+ .set_sysclk = davinci_mcasp_set_sysclk,
+};
+
+static int davinci_mcasp_dai_probe(struct snd_soc_dai *dai)
{
struct davinci_mcasp *mcasp = snd_soc_dai_get_drvdata(dai);

- if (mcasp->version >= MCASP_VERSION_3)
+ if (mcasp->version >= MCASP_VERSION_3) {
/* Using dmaengine PCM */
- snd_soc_dai_set_dma_data(dai, substream,
- &mcasp->dma_data[substream->stream]);
- else
+ dai->playback_dma_data =
+ &mcasp->dma_data[SNDRV_PCM_STREAM_PLAYBACK];
+ dai->capture_dma_data =
+ &mcasp->dma_data[SNDRV_PCM_STREAM_CAPTURE];
+ } else {
/* Using davinci-pcm */
- snd_soc_dai_set_dma_data(dai, substream, mcasp->dma_params);
+ dai->playback_dma_data = mcasp->dma_params;
+ dai->capture_dma_data = mcasp->dma_params;
+ }

return 0;
}

-static const struct snd_soc_dai_ops davinci_mcasp_dai_ops = {
- .startup = davinci_mcasp_startup,
- .trigger = davinci_mcasp_trigger,
- .hw_params = davinci_mcasp_hw_params,
- .set_fmt = davinci_mcasp_set_dai_fmt,
- .set_clkdiv = davinci_mcasp_set_clkdiv,
- .set_sysclk = davinci_mcasp_set_sysclk,
-};
-
#ifdef CONFIG_PM_SLEEP
static int davinci_mcasp_suspend(struct snd_soc_dai *dai)
{
@@ -795,6 +797,7 @@ static int davinci_mcasp_resume(struct snd_soc_dai *dai)
static struct snd_soc_dai_driver davinci_mcasp_dai[] = {
{
.name = "davinci-mcasp.0",
+ .probe = davinci_mcasp_dai_probe,
.suspend = davinci_mcasp_suspend,
.resume = davinci_mcasp_resume,
.playback = {
--
1.9.0

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