static int davinci_mcasp_trigger(struct snd_pcm_substream *substream,
int cmd, struct snd_soc_dai *cpu_dai)
{
struct davinci_audio_dev *dev = snd_soc_dai_get_drvdata(cpu_dai);
int ret = 0;
switch (cmd) {
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
ret = pm_runtime_get_sync(dev->dev);
if (ret < 0)
dev_err(dev->dev, "failed to get runtime pm\n");
davinci_mcasp_start(dev, substream->stream);
break;
case SNDRV_PCM_TRIGGER_SUSPEND:
davinci_mcasp_stop(dev, substream->stream);
ret = pm_runtime_put_sync(dev->dev);
if (ret < 0)
dev_err(dev->dev, "failed to put runtime pm\n");
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
davinci_mcasp_stop(dev, substream->stream);
break;
default:
ret = -EINVAL;
}
return ret;
}
static int davinci_mcasp_trigger(struct snd_pcm_substream *substream,
int cmd, struct snd_soc_dai *cpu_dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct davinci_audio_dev *dev = rtd->dai->cpu_dai->private_data;
int ret = 0;
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
davinci_mcasp_start(dev, substream->stream);
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
davinci_mcasp_stop(dev, substream->stream);
break;
default:
ret = -EINVAL;
}
return ret;
}
static int davinci_mcasp_trigger(struct snd_pcm_substream *substream,
int cmd, struct snd_soc_dai *cpu_dai)
{
struct davinci_audio_dev *dev = snd_soc_dai_get_drvdata(cpu_dai);
int ret = 0;
switch (cmd) {
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
if (!dev->clk_active) {
clk_enable(dev->clk);
dev->clk_active = 1;
}
davinci_mcasp_start(dev, substream->stream);
break;
case SNDRV_PCM_TRIGGER_SUSPEND:
davinci_mcasp_stop(dev, substream->stream);
if (dev->clk_active) {
clk_disable(dev->clk);
dev->clk_active = 0;
}
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
davinci_mcasp_stop(dev, substream->stream);
break;
default:
ret = -EINVAL;
}
return ret;
}