[PATCH] ASoC: samsung dma - prepare dma in start/resume trigger path

[Dylan Reid]

On Thu, Aug 23, 2012 at 1:51 PM, Dylan Reid <dgreid at chromium.org> wrote:
> On suspend all dma transactions are terminated (by the stop/suspend
> trigger calling ops->stop), they need to be set up again during resume.
> Move the prepare op to the start/resume/unpause trigger path so that dma
> and audio will restart on resume/unpause.
>
> Signed-off-by: Dylan Reid <dgreid at chromium.org>
> ---
>  sound/soc/samsung/dma.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/sound/soc/samsung/dma.c b/sound/soc/samsung/dma.c
> index f3ebc38..5772762 100644
> --- a/sound/soc/samsung/dma.c
> +++ b/sound/soc/samsung/dma.c
> @@ -250,6 +250,7 @@ static int dma_trigger(struct snd_pcm_substream *substream, int cmd)
>         case SNDRV_PCM_TRIGGER_START:
>         case SNDRV_PCM_TRIGGER_RESUME:
>         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
> +               dma_prepare(substream);
>                 prtd->state |= ST_RUNNING;
>                 prtd->params->ops->trigger(prtd->params->ch);
>                 break;
> @@ -352,7 +353,6 @@ static struct snd_pcm_ops dma_ops = {
>         .ioctl          = snd_pcm_lib_ioctl,
>         .hw_params      = dma_hw_params,
>         .hw_free        = dma_hw_free,
> -       .prepare        = dma_prepare,
>         .trigger        = dma_trigger,
>         .pointer        = dma_pointer,
>         .mmap           = dma_mmap,
> --
> 1.7.7.3
>