From b417382419c67fda6463e02eafb8efebd5f8759e Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Thu, 12 May 2011 13:04:55 +0300 Subject: [PATCH] ASoC: omap-pcm: Period wakeup disabling on OMAP2+ 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 Acked-by: Mark Brown Acked-by: Jarkko Nikula Signed-off-by: Liam Girdwood --- sound/soc/omap/omap-pcm.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c index 0c6eb30e92b9..e6a6b991d05f 100644 --- a/sound/soc/omap/omap-pcm.c +++ b/sound/soc/omap/omap-pcm.c @@ -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())) { -- 2.20.1