Commit b1b6cffe authored by Peter Ujfalusi's avatar Peter Ujfalusi Committed by Mark Brown
Browse files

ASoC: omap-pcm: Fix the no period wakeup implementation 



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: default avatarPeter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: default avatarJarkko Nikula <jarkko.nikula@bitmer.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 9cd11326

sound/soc/omap/omap-pcm.c

+8 −0
Original line number Diff line number Diff line
@@ -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);

	}



	if (!(cpu_class_is_omap1())) {

		omap_set_dma_src_burst_mode(prtd->dma_ch,