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ASoC: omap-pcm: Period wakeup disabling on OMAP2+

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Allow disabling ALSA period wakeup interrupts.
This can only be done on OMAP2+ (2/3/4), since there
we can chain the DMA.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Jarkko Nikula <jhnikula@gmail.com>
Signed-off-by: Liam Girdwood <lrg@ti.com>
This commit is contained in:
Peter Ujfalusi 2011-05-12 13:04:55 +03:00 committed by Liam Girdwood
parent 63405ce85a
commit b417382419
1 changed files with 3 additions and 2 deletions
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5
sound/soc/omap/omap-pcm.c
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@ -37,7 +37,8 @@ static const struct snd_pcm_hardware omap_pcm_hardware = {
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_RESUME,
SNDRV_PCM_INFO_RESUME |
SNDRV_PCM_INFO_NO_PERIOD_WAKEUP,
.formats = SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S32_LE,
.period_bytes_min = 32,
@ -195,7 +196,7 @@ static int omap_pcm_prepare(struct snd_pcm_substream *substream)
if ((cpu_is_omap1510()))
omap_enable_dma_irq(prtd->dma_ch, OMAP_DMA_FRAME_IRQ |
OMAP_DMA_LAST_IRQ | OMAP_DMA_BLOCK_IRQ);
else
else if (!substream->runtime->no_period_wakeup)
omap_enable_dma_irq(prtd->dma_ch, OMAP_DMA_FRAME_IRQ);
if (!(cpu_class_is_omap1())) {