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Commit b4173824 authored by Peter Ujfalusi's avatar Peter Ujfalusi Committed by Liam Girdwood
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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: default avatarPeter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: default avatarJarkko Nikula <jhnikula@gmail.com>
Signed-off-by: default avatarLiam Girdwood <lrg@ti.com>
parent 63405ce8

sound/soc/omap/omap-pcm.c

+3 −2
Original line number Diff line number Diff line
@@ -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())) {