On 10/04/2011 11:09 AM, Peter Ujfalusi wrote:
After omap_request_dma the BLOCK_IRQ is enabled as default configuration for the channel. If we are requested for no period wakeup, we need to disable the BLOCK_IRQ in order to not receive any interrupts.
Signed-off-by: Peter Ujfalusipeter.ujfalusi@ti.com
sound/soc/omap/omap-pcm.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c index 9b5c88a..5e37ec9 100644 --- a/sound/soc/omap/omap-pcm.c +++ b/sound/soc/omap/omap-pcm.c @@ -198,6 +198,14 @@ static int omap_pcm_prepare(struct snd_pcm_substream *substream) OMAP_DMA_LAST_IRQ | OMAP_DMA_BLOCK_IRQ); else if (!substream->runtime->no_period_wakeup) omap_enable_dma_irq(prtd->dma_ch, OMAP_DMA_FRAME_IRQ);
- else {
/** No period wakeup:* we need to disable BLOCK_IRQ, which is enabled by the omap* dma core at request dma time.*/omap_disable_dma_irq(prtd->dma_ch, OMAP_DMA_BLOCK_IRQ);- }
Acked-by: Jarkko Nikula jarkko.nikula@bitmer.com
while it would be more clear to fix this in omap dma core.